Rail-mounted building automation device

Abstract

The invention relates to a rail-mounted building automation device adaptable to space and communication requirements, comprising a communications module having a communications bus, an application module that implements the functionality. A bus connector supplies power and transferring data. The communications module includes a first casing having ten bus connector pins, a lower body with the communications bus, having a wall further forward than another in relation to a user. The application module includes a second casing with a pin-receiving connector having three terminals, a first projection separated from a second projection at approximately the width of the rail, in use when the ten pins are introduced into the receiving connector and an upper body of the first casing is introduced into a third recess of the second casing, with both being joined by a securing apparatus.

Claims

1. A rail-mounted building automation device comprising a communication module with a communications bus of the device, an application module that implements the functionality of the device, and a bus connector between the two modules, characterised in that said bus connector is for power supply and data transfer, the communication module comprising a first casing composed of an upper body with a first front wall and a first rear wall from which at least ten pins of the bus connector project, and a lower body with a second front wall having a first recess in which the communications bus is inserted and a second rear wall, so that the first front wall is further forward than the second front wall with respect to a user, and the first rear wall is also further forward than the second rear wall with respect to the user, the application module comprising a second casing with a first protrusion comprising a second recess and a third recess with a third front wall from which a receiving connector for a plurality of bus connector pins projects, a fourth front wall having a fourth centered recess that includes first electrical connection terminals, a fifth front wall having a fifth centered recess and respective sixth and seventh recesses, these sixth and seventh recesses including second and third terminals respectively, at least a first projection facing a second projection, both projections being separated at approximately a width of the rail on which the device can be placed, in use when the ten pins of the bus connector are introduced in a receiving connector the upper body is introduced in the third recess and the lower body in the fifth recess and the first casing is joined to the second casing by securing means.

2. The Device according to claim 1, wherein the securing means are at least one flange arranged in the first casing that engages in a hollow arranged in the second casing.

3. The Device according to claim 2, wherein the flange in the first casing is arranged in the upper body and the hollow in the second casing is arranged in the third recess.

4. The Device according to claim 1, wherein each of the first, second and third terminals is a module insertable in each of corresponding recesses, respectively: fourth, sixth and seventh recess.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present specification is completed by a set of figures that illustrate a preferred embodiment and in no way limit the invention.

(2) FIG. 1 represents an exploded perspective of the device.

(3) FIGS. 2 and 3 represent respective perspective views, front and rear respectively, of the closed device, in use.

(4) FIG. 4 represents a front perspective view of the first casing.

(5) FIG. 5 represents a side view of the first casing.

(6) FIG. 6 represents a rear perspective view of the first casing.

(7) FIGS. 7 to 9 represent front views of the first casing with different communication buses.

(8) FIG. 10 is a rear view of the first casing of the embodiment of FIG. 9.

(9) FIG. 11 represents a front perspective view of the second casing.

(10) FIG. 12 represents a rear perspective view of a detail of the second casing.

DETAILED DESCRIPTION OF THE INVENTION

(11) The present invention is a rail-mounted building automation device, shown in an exploded view in FIG. 1 and assembled or in use in FIGS. 2 and 3, comprising a communication module (1) with a communications bus (1.1) of the device, an application module (2) that implements the functionality of the device, and a bus connector (3) between the two modules (1, 2), the bus connector (3) being for power supply and data transfer.

(12) The communication module (1) comprises a first casing (1.2), represented as two halves in FIG. 1, composed of an upper body (1.3), as shown in FIGS. 1, 4 and 5, with a first front wall (1.4) and a first rear wall (1.5) from which at least ten pins (3.1) of the bus connector (3) project, FIGS. 5 and 6, and a lower body (1.6) with a second front wall (1.7) having a first recess (1.8) in which the communications bus (1.1) is inserted, FIG. 4, and a second rear wall (1.9), so that the first front wall (1.4) is further forward than the second front wall (1.7) with respect to a user, and the first rear wall (1.5) is also further forward than the second rear wall (1.9) with respect to the user, the application module (2) comprising a second casing (2.1), represented as a body with a cover in FIG. 1, with a first protrusion (2.2) comprising a second recess (2.3) and a third recess (2.4), as shown in FIGS. 1 and 10, with a third front wall (2.5) from which a receiving connector (3.2) for the bus connector pins (3) projects, FIG. 1, a fourth front wall (2.6) having a centered fourth recess (2.7), FIGS. 1 and 11, which includes first electrical connection terminals (4), FIG. 1, a fifth front wall (2.8) having a fifth centered recess (2.9) and respective sixth (2.10) and seventh recesses (2.11), these sixth (2.10) and seventh recesses (2.11) including second (5) and third terminals (6) respectively, at least a first projection (2.12) facing a second projection (2.13), both projections (2.12, 2.13) being separated at approximately the width of the rail on which the device can be placed. It is common for each first projection (2.12) to be arranged paired and close to another, and also to arrange two pairs of first projections (2.12), as shown in FIGS. 3 and 12. For better placement and removal, as is known, some of the projections (2.12.2.13) are retractable, for example being sliding and with a return spring, as shown in the figures for the second projection (2.13).

(13) The position of the first front wall (1.4) with respect to the second front wall (1.7) creates a step in the outer surface of the first casing (1.2) which causes the first recess (1.8) into which the communications bus (1.1) is inserted to be behind the most protruding surface of the device, and therefore, at a distance away from a possible electrical cabinet cover in which the rail with the device is situated, thus increasing the safety of the connection.

(14) In use, FIG. 2, when the ten pins (3.1) of the bus connector (3) are introduced in the receiving connector (3.2) the upper body (1.3) is introduced in the third recess (2.4) and the lower body (1.6) in the fifth recess (2.9), and the first casing (1.2) is joined to the second casing (2.1) by means of securing means (7).

(15) A detail of the explained embodiment is that the securing means (7) are at least one flange (7.1) arranged in the first casing (1.2), FIGS. 5 and 6, which engages in a hollow (7.2) arranged in the second casing (2.1), FIG. 11. This creates a simple and non-permanent attachment.

(16) Another detail of the explained embodiment is that the flange (7.1) in the first casing (1.2) is arranged in the upper body (1.3) and the hollow (7.2) in the second casing (2.1) is arranged in the third recess (2.4), FIGS. 5 and 11. This configuration can be helped by respective lateral extensions (1.11) in the upper body (1.3) of the first casing (1.2), FIG. 4, which helps the extraction thereof with the thumb and index finger of one hand, also lateral hollows (2.14), FIG. 11, can be added in correspondence with said lateral extensions (1.11) to facilitate finger insertion.

(17) Another detail of the explained embodiment is that each of the first (4), second (5) and third terminals (6) is a module insertable in each of their corresponding recesses: fourth (2.7), sixth (2.10) and seventh recess (2.11), FIG. 1. This configuration makes the terminals (4, 5, 6) very practical during installation or replacement. Similarly and inherently, being included in their recesses (2.7.2.10.2.11) they cause each terminal (4, 5, 6) to be insulated from its adjacent element by the walls of each corresponding recess (2.7, 2.10, 2.11), thereby protecting each terminal (4, 5, 6) from possible electrical contacts.

(18) Preferably, the communication module (1) has a first LED indicator (1.12) and a first push-button (1.13), which allow the user to interact and parameterise some functions of the device, FIG. 4. Similarly, the application module (2) also has at least one second LED indicator (2.15) and a second push-button (2.16), FIG. 2, integrated in a strip (2.17) insertable in the second recess (2.3); in this embodiment, a front panel with eight of each of them is shown, for example, to control eight lighting points, so that the number will depend on each specific application.

(19) Advantageously, the first recess (1.8) is adapted for receiving the communications bus (1.1) according to one of the protocols selected from among KNX, C3, C4 and BACnet as shown respectively in FIGS. 7 to 9.

(20) Specifically, for KNX and C3/C4, FIGS. 7 and 8, the same first recess (1.8) serves the purpose. For KNX, FIG. 7, the first programming push-button (1.13) and the first status LED indicator (1.12) are incorporated as a user interface, while for C3/C4, FIG. 8, a rotary selector (1.14) is incorporated for address assignment and a first status LED (1.12) indicator.

(21) On the other hand, for BACnet, FIG. 9, the first recess (1.8) is larger than the previous one, since it goes to five terminals from two. This is due to the insurmountable differences that exist in terms of the user interface. The configuration for BACnet incorporates two rotary selectors (1.14) for address assignment, a first status LED indicator (1.12), and a “DIP switch”-type double selector (1.15), FIG. 10, with which to adjust the transmission speed.