WIRELESS LOCKSET WITH INTEGRATED ANTENNA, TOUCH ACTIVATION, AND LIGHT COMMUNICATION METHOD

Abstract

A wireless electromechanical lock with one or more of an internal antenna, touch activation, and/or a light communication device that acts as a user interface. In some embodiments, the lock utilizes an antenna near the exterior face of the lockset, designed inside the metal body of the lockset itself. A light communication device is provided in some embodiments to communicate information, visually, to the user via animations and dynamic displays of light. In some embodiments, the lockset includes a touch activation capability, which can be used to lock/unlock the lock and/or otherwise provide input.

Claims

1. (canceled)

2. A lockset comprising: a latch assembly including a bolt movable between an extended position and a retracted position; a wireless communication interface; a controller configured to electronically control movement of the bolt between the extended position and the retracted position; and an exterior assembly including: a front surface comprising: a front cover made of a non-conductive and generally RF transparent material; and a light device configured to selectively illuminate a plurality of regions of the front surface; a guard cover at least partially surrounding the front surface, the guard cover constructed from a metal material and forming a body of the exterior assembly; and wherein the controller actuates movement of the bolt between the extended position and the retracted position in response to: receiving a touch input at a touch-sensitive surface; and receiving an authentication code.

3. The lockset of claim 2, wherein the authentication code is received from a user device.

4. The lockset of claim 2, wherein the guard cover includes the touch-sensitive mechanism.

5. The lockset of claim 2, wherein the light device is made of generally RF transparent material.

6. The lockset of claim 2, wherein the light device illuminates to visually indicate a request for user input.

7. The lockset of claim 2, wherein the light device is configured to illuminate in response to a user approaching the exterior assembly.

8. The lockset of claim 2, wherein the exterior assembly further comprises an antenna configured for wireless communication with a user device.

9. The lockset of claim 2, wherein the antenna is at least partially disposed in an internal cavity of the body defined by the guard cover.

10. A lockset comprising: a latch assembly including a bolt movable between an extended position and a retracted position; a controller configured to electronically control movement of the bolt between the extended position and the retracted position; and an exterior assembly including: a front surface comprising a front cover made of generally RF transparent material; a guard cover constructed from a metal material and at least partially surrounding the front surface; and an antenna configured for wireless communication with a user device, wherein the antenna is at least partially disposed in an internal cavity defined by the guard cover; wherein the controller is configured to: when the user device is in range of the exterior assembly, receive credentials from the user device; and in response to an indication that a user is located proximate to the exterior assembly and authenticating the credentials, actuate movement of the bolt between the extended position and the retracted position.

11. The lockset of claim 10, wherein the indication that the user is located proximal to the exterior assembly includes receipt of a touch input at a touch-sensitive mechanism of the exterior assembly.

12. The lockset of claim 11, wherein the guard cover includes the touch-sensitive mechanism.

13. The lockset of claim 10, wherein the front surface further comprises a light device.

14. The lockset of claim 13, wherein the light device is configured to illuminate to indicate that the user is in range of the exterior assembly.

15. The lockset of claim 14, wherein the light device is further configured to illuminate in response to the authentication of the credentials.

16. A lockset comprising: a latch assembly including a bolt movable between an extended position and a retracted position; a controller configured to electronically control movement of the bolt between the extended position and the retracted position; and an exterior assembly including: a front surface comprising a front cover made of generally RF transparent material; a guard cover constructed from a metal material and positioned at least partially surrounding the front surface, the guard cover forming a body having an internal cavity; and an antenna configured for wireless communication with a user device, wherein the antenna is at least partially disposed in the internal cavity defined by the guard cover; wherein the controller is configured to: determine a position of the user device; receive credentials from the user device when the user device is in range of the exterior assembly; and actuate movement of the bolt between the extended position and the retracted position based, at least in part, on authentication of the credentials.

17. The lockset of claim 16, wherein the guard cover includes a touch-sensitive surface.

18. The lockset of claim 17, wherein actuation of movement of the bolt between the extended position and the retracted position is further based on a touch input received at the touch-sensitive surface.

19. The lockset of claim 16, wherein the front surface further comprises a light device.

20. The lockset of claim 19, wherein the light device is configured to illuminate when the position of the user device is determined to be within range of the exterior assembly.

21. The lockset of claim 19, wherein the light device is configured to illuminate based on authentication of the credentials.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present disclosure will be described hereafter with reference to the attached drawings which are given as non-limiting examples only, in which:

[0020] FIG. 1 is an exploded view of an example lock assembly according to one embodiment of the disclosure;

[0021] FIG. 2 is a side cross-sectional view of the example lock assembly shown in FIG. 1 in an assembled state;

[0022] FIG. 3 is an exploded view of the example exterior assembly shown in FIGS. 1 and 2;

[0023] FIG. 4 is a front perspective view of the example exterior assembly shown in FIGS. 1 and 2 with a section removed to show interior components;

[0024] FIG. 5 is a partial side cross-sectional view of the example exterior assembly shown in FIGS. 1 and 2;

[0025] FIG. 6 is a rear perspective view of the example exterior assembly shown in FIGS. 1 and 2;

[0026] FIG. 7 is a rear perspective view of an example insulator top that could be used in the exterior assembly according to one embodiment of the disclosure;

[0027] FIG. 8 is a front perspective view of the insulator shown in FIG. 7;

[0028] FIG. 9 is a rear view of the insulator shown in FIGS. 7 and 8;

[0029] FIG. 10 is a sectional view of the insulator along line 10-10 of FIG. 9;

[0030] FIG. 11 is a sectional view of the insulator along line 11-11 of FIG. 9;

[0031] FIG. 12 is a rear perspective view of an example lockset body that could be used in the exterior assembly, according to one embodiment of the disclosure;

[0032] FIG. 13 is a front perspective view of the example lockset body shown in FIG. 12;

[0033] FIG. 14 is a rear view of the example lockset body shown in FIG. 12;

[0034] FIG. 15 is a sectional view of the example lockset body along line 15-15 of FIG. 14;

[0035] FIG. 16 is a front view of the example lockset body shown in FIG. 13;

[0036] FIG. 17 is a sectional view of the example lockset body along line 17-17 of FIG. 16;

[0037] FIG. 18 is a sectional view of the example lockset body along line 18-18 of FIG. 16;

[0038] FIG. 19 is a front perspective view of an example light pipe that could be used in the exterior assembly according to one embodiment of the disclosure;

[0039] FIG. 20 is a rear perspective view of the example light pipe shown in FIG. 19;

[0040] FIG. 21 is a rear view of the example light pipe shown in FIG. 20;

[0041] FIG. 22 is a sectional view of the example light pipe along line 22-22 of FIG. 21;

[0042] FIG. 23 is a sectional view of the example light pipe along line 23-23 of FIG. 21;

[0043] FIG. 24 is a sectional view of the example light pipe along line 24-24 of FIG. 21;

[0044] FIG. 25 is a sectional view of the example light pipe along line 25-25 of FIG. 21;

[0045] FIG. 26 is a sectional view of the example light pipe along line 26-26 of FIG. 21;

[0046] FIG. 27 is a diagrammatical view showing an electrical connection from the lockset to the PCB through capacitive sensing;

[0047] FIGS. 28-31 are a diagrammatical representation showing an example communication by the light pipe according to one embodiment of the disclosure;

[0048] FIG. 32 is an exploded view of an example battery contact assembly that may be used with a key fob to wirelessly provide security credentials to the lock according to one embodiment of the disclosure;

[0049] FIG. 33 is a perspective view the example battery contact assembly shown in FIG. 32 mounted to a PCB assembly;

[0050] FIG. 34 is a perspective view of the example battery contact assembly shown in FIG. 33 with a battery inserted between the contacts;

[0051] FIG. 35 is a perspective view of the example battery contact assembly shown in FIG. 33 mounted on an opposite side of the PCB;

[0052] FIG. 36 is a bottom perspective view of a contact of the example battery contact assembly shown in FIG. 32;

[0053] FIG. 37 is a side perspective view of the example contact shown in FIG. 36;

[0054] FIG. 38 is a side view of the example contact shown in FIG. 36; and

[0055] FIG. 39 is a top view of the example contact shown in FIG. 36.

[0056] Corresponding reference characters indicate corresponding parts throughout the several views. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principals of the invention. The exemplification set out herein illustrates embodiments of the invention, and such exemplification is not to be construed as limiting the scope of the invention in any manner.

DETAILED DESCRIPTION OF THE DRAWINGS

[0057] While the concepts of the present disclosure are susceptible to various modifications and alternative forms, specific exemplary embodiments thereof have been shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that there is no intent to limit the concepts of the present disclosure to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the disclosure.

[0058] This disclosure generally relates to an electromechanical lock with certain features. The term electronic lock is broadly intended to include any type of lockset that uses electrical power in some manner, including but not limited to electronic deadbolts, electronic lever sets, etc. This disclosure encompasses the integration of one or more of features described herein into any type of electronic lock and is not intended to be limited to any particular type of electronic lock.

[0059] FIG. 1 shows an example lock assembly 100 according to one embodiment of the disclosure. In the example shown, the lock assembly 100 includes an exterior assembly 102, a latch assembly 104, and an interior assembly 106. Typically, the exterior assembly 102 is mounted on the outside of a door, while the interior assembly 106 is mounted inside a door. The latch assembly 104 is typically mounted in a bore formed in the door. The term outside is broadly used to mean an area outside a door and inside is broadly used to denote an area inside a door. With an exterior entry door, for example, the exterior assembly 102 may be mounted outside a building, while the interior assembly 106 may be mounted inside a building. With an interior door, the exterior assembly may be mounted inside a building, but outside a room secured by the lock assembly 100; the interior assembly 106 may be mounted inside the secured room. The lock assembly 100 is applicable to both interior and exterior doors.

[0060] In the example shown, the exterior assembly 102 is in the form of a deadbolt. As discussed above, however, this disclosure is not intended to be limited to only an electronic deadbolt, but encompasses any kind of electronic lock. As shown, the exterior assembly 102 includes a cylinder guard cover 108 that houses internal components of the exterior assembly 102. In the example shown, the cylinder guard cover 108 has a decorative shape with a rear portion 110 that would be adjacent a door (not shown) and a front portion 112 extending from the door. In this example, the cylinder guard cover 108 has a tapered shape from the rear portion 110 to the front portion 112, but the exterior assembly 102 and cylinder guard cover 108 could have a wide variety of different sizes and shapes depending on the particular circumstances.

[0061] In the embodiment shown, the front portion 112 of the exterior assembly 102 includes a front cover 114 that surrounds a mechanical locking assembly 116. A mechanical key (not shown) may be inserted into the mechanical locking assembly 116 to mechanically unlock the lock assembly 100.

[0062] In the embodiment shown, a light communication device 118 surrounds the front cover 114. In this example, the light communication device 118 is formed in the shape of a ring surrounding the front cover 114 and mechanical locking assembly 116. However, the light communication device 118 could be formed in other shapes or positioned differently on the exterior assembly 102.

[0063] As explained further below, the light communication device 118 includes a plurality of regions that could be independently controlled to visually communicate messages to the user, including but not limited to, an action currently being processed by the lock assembly 100, information about the status of the lock assembly 100, and/or requests for user input. By way of example, the light communication device 118 could visually communicate the direction of bolt movement by illuminating regions in sequence to create a rotation animation showing a direction of movement. The light communication device 118 could visually communicate messages to the user by controlling various attributes of the regions, such as turning regions on/off, changing intensity of regions, changing colors illuminated by regions, or other manners of changing the illumination of the light communication device 118.

[0064] In some embodiments, the lock assembly 100 may be touch activated. For example, the lock assembly 100 may use capacitive sensing to determine whether the user wants to actuate the lock assembly 100. The touch surface for capacitive sensing to actuate the lock assembly 100 could be any external surface, including but not limited to, a cylinder guard cover, a cylinder guard, a keyway, a handle, a rose, or other exterior surface of the lock assembly 100. In the example shown, the exterior assembly 102 uses capacitive sensing to determine when a user touches the cylinder guard cover 108. Accordingly, in the embodiment shown, the user is able to touch anywhere on the cylinder guard cover 108 to lock or unlock the lock assembly 100, or otherwise activate various functions of the lock assembly 100.

[0065] In the example shown, the exterior lock assembly 102 has a torque blade 120 extending from the rear portion 110. The torque blade extends through an adaptor 122 in the embodiment shown, which is received within a bore in a door to which the lock assembly 100 is being installed or mounted.

[0066] The latch assembly 104 is disposed in a core in a door and may be actuated manually by the mechanical locking assembly 116, or electronically by touching anywhere on the cylinder guard cover 108 (in the embodiment shown) to extend/retract a bolt 124. The bolt 124 moves linearly in and out of a sleeve 126. When the bolt 124 is retracted, an end of the bolt 124 is generally flush with a base plate 128. When the bolt 124 is extended, the bolt 124 protrudes through an edge bore in the door into an opening 130 of a strike plate 132, which is positioned in a jamb adjacent the door. As is typical, the strike plate 132 is attached to the jamb using fasteners 134. Likewise, fasteners 136 attach the base plate 128 of the latch assembly 104 to the door.

[0067] In the embodiment shown, the latch assembly 104 includes a spindle 138 that is drivable in a first direction to extend the bolt 124 and a second direction to retract the bolt 124. The spindle 138 is configured to receive the torque blade 120 such that rotation of the torque blade 120 in a first direction retracts the bolt 124; whereas, rotation of the torque blade 120 in the opposite direction causes the spindle to retract the bolt 124.

[0068] The torque blade 120 extends through the latch assembly 104 into an opening 140 in a mounting plate 142, which is attached to an interior side of the door. The torque blade 120 passes through the opening 140 and is received by a spindle driver 144. The spindle driver 144 provides electronic control of the bolt 124, such as using a motor to rotate the spindle driver 144 in either a first direction or in a second direction. Since the torque blade 120 is disposed within the spindle 138, rotation of the spindle driver 144 may be used to extend and/or retract the bolt 124 of the latch assembly 104. In the embodiment shown, fasteners 146 extend through holes 148 in the mounting plate, which are aligned with openings 150 in the latch assembly 104. A wiring harness (not shown) electrically connects electronics between the exterior assembly 102 and the interior assembly 106.

[0069] FIG. 2 is a side cross-sectional view of the lock assembly 100 in an assembled state. In the example shown, the torque blade 120 can be seen extending from the rear portion 110 of the exterior assembly 102 through the spindle 138 of the latch assembly 104 into the spindle driver 144 of the interior assembly 106. The torque blade 120 may be driven to extend/retract the bolt 124 in several ways. For example, the mechanical locking assembly 116 could be actuated by a mechanical key to rotate the torque blade 120, which would allow the bolt 124 to be extended/retracted. The exterior assembly 102 could be used to electronically actuate the latch assembly 104 by touching anywhere on the cylinder guard cover 108 (assuming the lock assembly 100 received authenticated credentials prior to the user touching the cylinder guard cover 108). By touching anywhere on the exterior assembly 102 to actuate the bolt 124, a message is sent from the exterior assembly 102 to the interior assembly 106 using a wiring harness to actuate a motor in the interior assembly 106 that drives the torque blade 120 using the spindle driver 144. Additionally, if the user is inside the door, a turn piece 152 could be manually rotated by the user to actuate the torque blade 120 (via the spindle driver 144), thereby moving the bolt 124 between its extended and retracted positions.

[0070] FIG. 3 is an exploded view of the exterior assembly 102. As shown, the mechanical locking assembly 116, which could be a pin-tumbler locking arrangement, has the torque blade 120 extending therefrom. As shown, the front end of the mechanical locking assembly 116 is received by an opening 154 in the front cover 114. Preferably, the front cover 114 is made of a RF transparent material, such as a plastic. By way of example only, the front cover 114 could be made of a material called Terluran GP-22 by BASF of Ludwigshafen, Germany or Polylac PA-727 by Chi Mei Corporation of Taiwan.

[0071] In the embodiment shown, referring also to FIGS. 7-11, the exterior assembly 102 includes an insulator 156 that is received within the rear portion 110 of the cylinder guard cover 108. The insulator 156 is formed from an electrical insulator material, such as Polycarbonate PC-110 by Chi Mei Corporation of Taiwan. In this example, the insulator 156 includes a recessed portion 158 that houses several internal components. In the example shown, an O-ring 160, a light pipe 162, a PCB board 164, and a conductive wave washer 166 are housed in the recessed portion 158 between the insulator 156 and the cylinder guard cover 108.

[0072] In the example shown, the light communication device 118 is a light pipe 162. As shown, referring also to FIGS. 19-24, the light pipe 162 includes a recessed portion 163 on the front end that is dimensioned to receive the front cover 114. A flange 165, which is a ring-shape in the embodiment shown, surrounding the front cover 114 can be selectively illuminated. Accordingly, in the embodiment shown, the flange 165 or ring surrounding the front cover 114 may light up during operation. As discussed above, for example, the light pipe 162 may include a plurality of regions that are independently controllable to visually display messages to the user, which could be animations in some embodiments. In some embodiments, the light pipe 162 is translucent or transparent. By way of example only, the light pipe 162 could be made from a product called Polycarbonate PC-110 by Chi Mei Corporation of Taiwan. As shown, the light pipe 162 includes a groove dimensioned to receive a seal, which is an O-ring 160 in this example. The O-ring prevents moisture from entering the front portion 112 of the exterior assembly 102. In the example shown, fasteners 168 extend through the light pipe 162, PCB board 164, and insulator 156 to connect within threaded openings 170 of a cylinder housing 172.

[0073] Referring also to FIGS. 12-18, the cylinder housing (also called cylinder guard) 172 provides impact strength and structural reinforcement for the exterior assembly 102. For example, the cylinder housing 172 may be formed from a zinc alloy in some embodiments. In the embodiment shown, the cylinder housing 172 is received in a rear portion of the insulator 156. As shown, the cylinder housing 172 includes a cavity 174 that is configured to receive an antenna. Despite having a cavity in the cylinder housing 172, the cylinder housing 172 provides sufficient reinforcement for the exterior assembly 102 in tests.

[0074] A clip 176 retains a rear portion of the mechanical locking assembly 116 within the exterior assembly 102. A retainer 178 and plate 180 are attached to a rear portion of the cylinder housing 172 for added tamper resistance and structural reinforcement of the cylinder housing 172. Fasteners 182, 184 are received within threaded openings in a back portion of the cylinder housing 172 to fasten the retainer 178 and plate 180.

[0075] FIG. 4 is a front perspective view of the exterior assembly 102 with a portion removed to expose internal components. In this view, the cavity 174 formed in the cylinder housing 172 can be seen. This allows an antenna to be internal to the exterior assembly 102 (within the cylinder housing 172 as shown) to transmit signals outside the exterior assembly 102. With an antenna on the front portion of the exterior assembly 102, behind the light pipe 162 and front cover 114, which are both plastic, this allows wireless signals to be transmitted out of the exterior assembly 102. From this view, it can also be seen that the flange 165 of the light pipe 162 extends around the front cover 114, which can be used to communicate with the user.

[0076] FIG. 5 is a side cross-sectional view of a portion of the exterior assembly 102. As shown, an air gap 186 is formed by the insulator 156 between the cylinder guard cover 108 and the cylinder housing 172. The insulator 156 also separates the touch surface, which is the cylinder guard cover 108 in this example, from the PCB 164 that hosts the touch electronics. In this example, the conductive wave washer 166 is compressed between the PCB 164 and the cylinder guard cover 108 to make electrical contact. With this electrical connector, the PCB 164 can sense when a user touches anywhere on the cylinder guard cover 108. Although the cylinder guard cover 108 is shown for purposes of example, the touch surface could be any mechanical feature of a lockset, including but not limited to, a cylinder guard cover, cylinder guard, cylinder, keyway, handle, rose, or other exterior/interior features of a lockset. Although the conductive wave washer 166 is shown for purposes of example, the conductive medium could be a conductive foam, conductive tape, conductive grease, or any other mechanical device electrically connecting the touch surface of the lockset to the PCB that hosts the touch electronics. This is shown diagrammatically in FIG. 27. Also visible from the view is the cavity 174 for housing the antenna.

[0077] FIG. 6 is a rear perspective view of the exterior assembly 102. As can be seen in this example, the torque blade 120 extends from the rear portion of the exterior assembly for actuating the spindle 138 and the latch assembly 104. This view also shows the plate 180 and retainer 178 that have been attached to the rear portion of the cylinder housing 172.

[0078] FIGS. 28-31 show an example of how the light pipe 162 (which is shown diagrammatically) may be used to communicate with the user. In the example shown, the light pipe includes a plurality of regions that may be independently illuminated or adjusted by intensity or color. These regions may be illuminated in a coordinated manner to display information about the exterior assembly 102, such as a static image (e.g., solid or flashing the same regions) or as an animation (e.g., illuminating regions in a particular sequence). In the example shown, the light pipe 162 includes a first region 188, a second region 190, a third region 192, a fourth region 194, a fifth region 196, a sixth region 198, a seventh region 200, and an eighth region 202. Although eight regions are shown in this example, more or fewer regions could be used. Although these regions are represented by a circle, these are merely shown for purposes of example to indicate a region of the light pipe 162 that may be independently drivable. Consider an example in which the user has provided an authentication code to the lock assembly 100 and would like to touch the cylinder guard cover 108 to unlock the lock assembly 100. One example communication that may be made by the light pipe 162 could be indicating the direction of movement of the bolt 124. If the bolt 124 was moving to the right, for example, the light pipe 162 may illuminate regions in a sequence to animate a clockwise movement.

[0079] For example, the light pipe may first indicate the first and second regions 188, 190, as shown in FIG. 28. The next two regions 192, 194 may then be illuminated and then the next regions 196, 198, and finally regions 200, 202 to show an animation of a clockwise direction. If the bolt 124 was moving to the left, the animation could be in the opposite direction. The light pipe 162 could be used to communicate a wide variety of information, such as whether the lock assembly 100 is either in a locked state or in an unlocked state. Moreover, in some embodiments, the light pipe 162 could be used to request additional information from a user, such as requesting the user touch the touch surface to either lock or unlock the lock assembly 100. If the user needs to touch the cylinder guard cover 108 multiple times to activate a certain function of the lock assembly 100, for example, the light pipe 162 could indicate the number of touches by flashing that number of times. Accordingly, the light pipe 162 acts as a user interface to communicate and interact with the user.

[0080] In operation, the user may approach the exterior assembly 102, which could cause the light pipe 162 to illuminate to indicate the user is in range. If an authentication code transmitted by the user to the lock assembly 100 is authenticated or recognized, the light pipe 162 may indicate this, such as by flashing green or some sort of animation. The user may then touch anywhere on the cylinder guard cover 108 to unlock the lock assembly 100. For example, this may cause a motor to rotate the spindle driver 144, which rotates the torque blade 120 to retract the bolt 124. As the lock assembly 100 is actuating the bolt to the retracted position, the light pipe 162 may indicate this through some sort of animation, such as a clockwise animation. When the bolt 124 has been fully retracted, the light pipe 162 may indicate that the bolt 124 is unlocked. If there was an error in retracting the bolt 124, the light pipe 162 could indicate this.

[0081] FIGS. 32-39 show a battery contact assembly 210 for electrically connecting a battery 212, such as a coin battery, to a PCB board 214 for supplying electrical power. In some cases, this assembly could be in a key fob that interacts with the lock assembly 100. For example, the PCB 214 could be configured to transmit wireless messages to the lock assembly 100, such as security credentials. The battery contact assembly 210 is configured to provide a low-profile key fob that is thinner than existing key fobs.

[0082] In the embodiment shown, the battery contact assembly 210 includes a first contact 216 and a second contact 218. For example, the first contact 216 may connect a negative terminal of the battery 212 to the PCB 214 while the second contact 218 may connect the positive terminal of the battery 212. The first contact 216 includes a mounting portion 220 for mounting the first contact to the PCB 214. The second contact 218 includes a mounting portion 222 for mounting the second contact to the PCB 214. In the example shown, the mounting portion 220 includes legs 224 that extend through holes 226 in the PCB 214 for soldering the first contact 216 to the PCB 214 to establish an electrical connection between the PCB 214 and the first contact 216. In the example shown, the mounting portion 220 is mounted to the face of the PCB 214 (either the front or back as shown in FIGS. 34 and 35). A projection 228 extends from the PCB 214 and is suspended above the second contact 218. In the example shown, the projection 228 includes a straight portion 230 that extends along a longitudinal axis of the PCB and an angled portion 232. The projection 228 includes a spring 234 surrounded by a holder 236. The spring 234 urges against a first side of the battery to create a frictional fit with the second contact 218.

[0083] In the example shown, the mounting portion 222 of the second contact 218 includes legs 238 that extend through holes 240 in the PCB 214 for soldering the second contact 218 to the PCB 214 to establish an electrical connection between the PCB 214 and the second contact 218. In the example shown, the mounting portion 222 includes a face portion 242 and an edge portion 244 to straddle the PCB 214 (see FIGS. 33-35). As shown, the edge portion 244 has a top end extending transverse from the face portion 242 and a bottom end with a projection 246 extending from the PCB 214 and is positioned on an opposing side of the battery 212 than the first contact 216. As with the first contact 216, the second contact 218 can be mounted to either the front or back of the PCB 214. In the example shown, the projection 246 includes a straight portion 248 that extends along a longitudinal axis of the PCB and an angled portion 250. The projection 246 includes a spring 252 surrounded by a holder 254. The spring 252 urges against a second side of the battery to create a frictional fit with the first contact 216. In use, a user may slide the battery 212 between the first contact 216 and the second contact 218. The urging of springs 234, 252 on opposing faces of the battery 212 creates a frictional fit to hold the battery 212 in place. Since the first contact 216 and the second contact 218 have an electrical connection with the PCB 214, the battery 212 supplies power to the PCB 214. If the user wants to remove the battery 212, the battery 212 may pulled out with sufficient force to overcome the friction of the springs 234, 252.

[0084] Although the present disclosure has been described with reference to particular means, materials, and embodiments, from the foregoing description, one skilled in the art can easily ascertain the essential characteristics of the invention and various changes and modifications may be made to adapt the various uses and characteristics without departing from the spirit and scope of the invention.