Adapter housing with socket for waterproof mounting a power supply to an appliance
10270203 · 2019-04-23
Assignee
Inventors
Cpc classification
H01R13/74
ELECTRICITY
H01R13/405
ELECTRICITY
H01R13/5219
ELECTRICITY
H01R13/5202
ELECTRICITY
H01R13/5216
ELECTRICITY
H01R13/58
ELECTRICITY
H01R13/504
ELECTRICITY
H01R13/521
ELECTRICITY
International classification
H01R12/00
ELECTRICITY
H01R13/405
ELECTRICITY
H01R13/52
ELECTRICITY
H01R31/06
ELECTRICITY
H01R13/504
ELECTRICITY
Abstract
An adapter housing for waterproof mounting a power supply circuit to an exterior wall of an appliance. The wall has an opening for a plug to connect the socket. The adapter includes a front wall having a connecting area and a mounting area; and a sealing element connected to the front wall. The sealing element surrounds the connecting area and the mounting area. The front wall opens at the connecting area into a recess defining a socket for receiving a plug. The front wall enables a sealed mounting to an exterior wall of the appliance. A side wall, together with the front wall, defines a compartment for receiving a power supply circuit. The sealing element surrounds the connecting area and the mounting area on the front wall such that it seals the compartment from an opening of the exterior wall.
Claims
1. An adapter housing (100) with a socket for mounting a power supply circuit waterproofly to an exterior wall of an appliance, wherein the exterior wall of the appliance has an opening for a plug to connect the socket, the adapter housing comprising: a front wall (102) including a connecting area (104) and a mounting area (106) on the front wall (102); a sealing element (200) including a sealing lip (202), the sealing element non-detachably connected to the front wall (102), wherein the sealing element (200) surrounds at least the connecting area (104) and the mounting area (106) on the front wall (102); the front wall (102) opening at the connecting area (104) into a recess defining a socket (116) for receiving a plug; the front wall (102) further enabling a sealed mounting to the exterior wall (500) of the appliance at the mounting area (106); and a side wall (108), which together with the front wall (102), defines a compartment for receiving a power supply circuit wherein the sealing lip (202) surrounds at least the connecting area (104) and the mounting area (106) on the front wall (102) such that, when mounted to the exterior wall (500) of the appliance, it seals the compartment waterproofly from an opening of the exterior wall (500).
2. The adapter housing with socket according to claim 1, wherein the mounting area (106) is arranged in a flat surface of the front wall (102) for a flush mounting of the adapter housing (100) to the exterior wall (500) of the appliance.
3. The adapter housing with socket according to claim 1, wherein the compartment, defined by the side wall (108) together with the front wall (102), has an opening facing in a direction opposite to the opening of the recess defining the socket (116).
4. The adapter housing with socket according to claim 1, wherein the socket (116) is conforming to the norm IEC 60320.
5. The adapter housing with socket according to claim 1, the compartment, defined by the side wall (108) together with the front wall (102), is extending laterally from the mounting area (106).
6. The adapter housing with socket according to claim 1, wherein the compartment is provided on its receiving side with a guide notch (112) for inserting a printed circuit board of the power supply circuit.
7. The adapter housing with socket according to claim 1, wherein the compartment is provided on its receiving side with a protrusion forming a spacer (114) for spacing the printed circuit board of the power supply circuit at a prescribed distance from the front wall (102).
8. The adapter housing with socket according to claim 1, wherein the mounting area on the front wall comprises at least one recess (116) for receiving a fastening element.
9. The adapter housing with socket according to claim 1, further comprises at least one contact pin (300), wherein a part (306) of the contact pin (300) is over-molded within the front wall (102) enabling a sealed mounting therein, and/or wherein the contact pin (300) comprises an opening (302) and a part (306) of the contact pin (300) with the opening (302) is over-molded within the front wall (102) enabling a non-detachable and sealed mounting of the contact pin (300).
10. The adapter housing with socket according to claim 9, wherein the contact pin (300) is extending into the socket (116) and extending into the compartment enabling an electric connection between the socket (116) and the compartment.
11. The adapter housing with socket according to claim 1, further comprises at least one connecting element (400) for connecting a contact pin (300) to the power supply circuit, wherein the connecting element (400) comprises a cut through defining a flap (402), the flap is mechanically and electrically contacting the connection element (400) to the contact pin (300), and or the connecting element (400) comprises an opening (404) and the compartment further comprises a notch (118) that engages the opening (404) so as to lock the connecting element (400) at a prescribed position within the compartment, and/or the connecting element (400) comprises a shaft (406) with a lateral width and the compartment comprises a guide rail (120) that guides the shaft (406) so as to lock the connecting element (400) at a prescribed position within the compartment.
12. The adapter housing with socket according to claim 1, wherein the adapter housing (100) with the front and side wall (102,104) and the non-detachable connected sealing element (200) is manufactured by a two-component injection-molding process.
13. The adapter housing with socket according to claim 1, wherein the sealing element (200) extends into the receiving side of the compartment and comprises a barb (204) such that the sealing element (200) is non-detachably connected to the front wall (102).
14. The adapter housing with socket according to claim 1, wherein the side wall (108) is provided with at least one cable guide element (122; 124) for guiding and/or protecting an isolated cable connecting the power supply circuit and the appliance.
15. The adapter housing with socket according to claim 1, further comprising a printed circuit board of the power supply circuit, wherein the printed circuit board is mounted in the receiving part of the compartment.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The accompanying drawings are incorporated into the specification and form a part of the specification to illustrate several embodiments. These drawings, together with the description serve to explain the principles of disclosed embodiments. The drawings are merely for the purpose of illustrating the preferred and alternative examples of how the disclosed embodiments can be made and used, and are not to be construed as limiting the disclosed embodiments to only the illustrated and described embodiments. Furthermore, several aspects of the embodiments may formindividually or in different combinationssolutions according to the disclosed embodiments. The following described embodiments thus can be considered either alone or in an arbitrary combination thereof. Further features and advantages will become apparent from the following more particular description of the various embodiments of the disclosed embodiments, as illustrated in the accompanying drawings, in which like references refer to like elements, and wherein:
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DETAILED DESCRIPTION
(22) Embodiments will now be explained in more detail with reference to the Figures and firstly referring to
(23) The adapter housing 100 comprises the compartment, which is formed by a front wall 102 and a side wall 108. The compartment is adapted to receive a printed circuit board (PCB) of a power supply circuit and the power supply circuit is operable to convert an input electric energy, which is received from an external electrical network, to an output electric energy, which is supplied to an appliance. The PCB with the power supply circuit, the external network, and the appliance are not shown in the drawings. An example for an appliance is an infusion pump.
(24) In more detail, the input electric energy is fed into the compartment by the contact pins 300, which are assembled in the front wall 102 of the adapter housing 100. The connecting elements 400 electrically connect the contact pins 300 and the power supply circuit. The power supply circuit converts the input electric energy and supplies the appliance with the converted output electric energy.
(25) Now, with reference to
(26) In more detail, as shown for example in
(27) Now with reference to
(28) Now the sealing element 200 and the waterproof mounting are described in more detail with reference to
(29) According to some embodiments the sealing element 200 is made of a thermoplastic elastomer resin such as Hytrel. However, embodiments are not limited to the embodiment that the sealing element 200 is manufactured together with the adapter housing 100 in a two component injection molding process. For example, the sealing element 200 may be glued to the front wall 102 in order to provide a non-detachable connection, and thus, also different materials may be used for the sealing element 200.
(30) As best shown in
(31) Now the mounting of the adapter housing 100 to the exterior wall 500 according to the present embodiment is detailed described with reference to
(32) The recesses 116 receive, when the adapter housing 100 is mounted to the exterior wall 500, fastening elements which fix the adapter housing 100 to the exterior wall 500. Thus, an attractive force can be applied between the mounting area 106 on the front wall 102 and the inside surface 502 of the exterior wall 500. Consequently, the sealing element 200, and especially the sealing lip 202, is pressed to the inside surface 502 of the exterior wall 500, and thus, the receiving side of the compartment is sealed from the non-sealed part, i.e. the mounting area 106 and the connecting area 104 comprising the socket 110.
(33) Embodiments, however, is not limited to a flush mounting according to the above. For example, the adapter housing 100 can be mounted to the exterior wall by a shrinking adhesive. The adhesive bonds the mounting area 106 on the front wall 102 to the inside surface 502 of the front wall 500. During the curing process, the adhesive shrinks and thus, an attractive force is applied between the mounting area 106 and the inside surface 502. Moreover, the mounting area 106 does not have to be arranged necessarily between the sealing element 200 and the connecting area 106. For example, the sealing element 200 may surround non abutting areas, one being the mounting area 104 and one being the connecting area 106. Furthermore, the mounting area 106 may comprise additional recesses 116 for attaching user specific external elements to the adapter housing 100.
(34) The socket 110 for connecting to the pug is described in detail with reference to
(35) The contact pin 300 and the mounting of the contact pin 300 to the front wall 102 of the adapter housing 100 is described in detail with reference to
(36) In more detail, as shown for example in
(37) The mounting of the contact pin is described in detail with reference to
(38) Moreover, the sealed mounting of the contact pin 300 to the front wall 102 is additionally non-detachable. In particular, the over-molded part 306 of the contact pin 300 comprises an opening 302 and is over-molded by an injection molding process, a casting process, or the like. Such a mounting of the contact pin 300 to the front wall 102 allows that the compartment for receiving the power supply circuit is sealed from the socket 110 with the mounted contact pin 300 in accordance with the standard IPx7 and that the mounting of the contact pin 300 to the front wall 102 is non-detachably.
(39) However, some embodiments are not limited to a contact pin 300, which is over-molded by the front wall 102. The contact pin 300 can be waterproof mounted to the front wall 102 by a process such as gluing the contact pin 300 to the front wall 102.
(40) The norm part 304 of the contact pin 300, which is extending into the socket 110, is described in detail with reference to
(41) A polished area 111 is a polished part of the contacting area 104 that surrounds each norm part 308 of the contact pin 300 mounted to the front wall 102. The polished area 111 facilitates the demoulding process. Furthermore, the polished area 11 is easy to clean and visually appealing. The socket 110 and the norm part 308 of the contact pins 300 are manufactured conforming to the norm IEC 60320 and form a C17 socket. However, some embodiments are not limited to a C17 socket.
(42) The connecting part 308 of the contact pin 300, which extends into the compartment for receiving the power supply circuit, is described in detail with reference to
(43) Now with reference to
(44) The side wall 108 extends from the base, thereby enabling the injection molding manufacturing process of the present embodiment. Preferably the side wall 108 is arranged perpendicular to the base. Opposing to the base the compartment has an opening through which the mold can be extracted. The same opening additionally enables to insert the PCB of the power supply circuit. The side wall 108 follow the polygonal shape of the base, thereby forming the closed side wall 108 with edges at intersecting parts of the closed side wall 108. The base and the side wall 108 form an inner wall facing the receiving side of the compartment.
(45) The inner wall of the compartment further comprises elements for inserting 112 and positioning 114 the PCB, as shown for example in detail in
(46) Furthermore, the inner wall of the compartment has protrusions forming spacers 114, which are arranged at edges of side wall 108, as shown for example in detail in
(47) Alternatively, a spacer can be arranged at any position in the receiving part of the compartment. For example, a spacer 114 may extend from the base without contact to the side wall 108.
(48) Now the connection of the connecting part 308 of the contact pin 300 to the power supply circuit is described. In particular, the connecting elements 400 and the connection of the connecting elements 400 to the receiving side of the compartment is described with reference to
(49) According to the present embodiment, the connecting elements 400, which are made of an electrically conductive material such as a metal, connect to the compartment by a press fit. Thus, a fastening of the connecting element 400 and the compartment is achieved by friction after the parts are pushed together, rather than by any other means or fastening elements. However, some embodiments are not limited that the connecting elements 400 are fixed by interface fit to the adapter housing 100. For example, the connecting elements 400 can also be connected non-detachably to the adapter housing 100 by a process such as gluing the connecting element 400 to the adapter housing or by over-molding the connecting elements 400 by the adapter housing 100 within the manufacturing process of injection-molding the adapter housing 100.
(50) The connecting element 400 is described in detail with reference to
(51) The first part 410 of the connecting element 400 and the connection of the same to the front wall 102 of the receiving side of the compartment is detailed described with reference to
(52) The second part 412 of the connecting element 400 and the connection of the same to the side wall 108 of the receiving side of the compartment is described in detailed with reference to
(53) Furthermore, each guiding rail 120 is operable for positioning the PCB with respect to the front wall 102 in a similar way as the spacers 114. In particular, the protrusions forming the guide rail 120 extrude from the base in the direction of the opening of the receiving side of the compartment and from a flat portion facing the opening. This flat portion is arranged between the base and the opening of the receiving side of the compartment and preferably forms together with the flat portions of the spacers 114 a supporting area for the PCB.
(54) The tip 414 forming an end of the second part 412 of the connecting element 400 is adapted to being received by the PCB when the PCB is positioned in the compartment. Furthermore, the tip 414 is adapted to be soldered to the power supply circuit assembled on the PCB. Thus, the connecting element 400, mounted into the receiving side of the compartment, allows an electrical connection between the connecting part 308 of the contact pin 300, which is adapted to connect to the external network, and the power supply circuit, which is adapted to convert energy and supply with the converted energy the appliance, by soldering the power supply circuit to the tip 414.
(55) The side wall 108 of the adapter housing 100 further comprises cable guiding elements 122, 124 to protect and guide a cable that connects the power supply circuit, which supplies the appliance with energy, and the appliance.
(56) The cable guiding elements 122, 124 according to some embodiments described with reference to
(57) The side wall 108 further comprises a cable fixation element 124 formed by a hook extending perpendicular from an outer wall of the side wall 108. The outer wall of the side wall 108 opposes the inner wall of the side wall 108, which faces the receiving side of the compartment. The cable fixation element 124 enables to attach the cable, which connects the power supply circuit and the appliance, by additionally providing a stain relief. Preferably, a surface parallel to the front wall 102 of the cable fixation element 124 together with the outer wall of the side wall 108 defines a parting line 128 of the adapter housing 100.
(58) Although in the Figures only an embodiment is shown wherein the socket is a C17 socket conforming to the norm IEC 60320, it is clear to a person skilled in the art that the concept according to some embodiments may also be used when providing any other socket. Furthermore, the above shown adapter housing 100 with the non-detachably connected sealing element 200 has not to be necessarily manufactured by a two-component injection-molding process.
REFERENCE NUMERALS
(59) TABLE-US-00001 Reference Numeral Description 100 adapter housing 102 front wall 104 connecting area 106 mounting area 108 side wall 110 socket 111 polished area 112 guide notch 114 spacer 116 recesses 118 notch 120 guide rail 122 cable protecting element 124 cable fixation element 126 space requirement by an external appliance 128 parting line 200 sealing element 202 sealing lip 300 contact pin 302 contact pin opening 304 norm part 306 over-molded part 308 connecting part 400 connecting element 402 flap 404 opening 406 shaft 410 first part 412 second part 414 tip 500 exterior wall 502 inside surface of the exterior wall