CN201498939U - Draw-out type electric junction box for integrated PCBs - Google Patents

Abstract

The utility model discloses a draw-out type electric junction box for integrated PCBs. The junction box comprises a box body, and PCB fixing structures and fans arranged in the box body, wherein, at least two connectors used for plug-in connection with corresponding socket ends in an equipment cabinet are fixed on the outer surface of a plug-in end of the box body which is used for connecting the box body with the equipment cabinet in a plug-in manner, and contact elements capable of signal connection with PCBs mounted in the box body are arranged in the connectors. The utility model has the advantages that the connectors which can match with the socket ends in the equipment cabinet in a plug-in manner are arranged on the outer surface of the plug-in end of the box body, and the signal connection between the connectors and the PCBs in plug-in connection with the internal box body can be realized through the inner ends of the contact elements in the connectors, thereby achieving both the plug-in assembly of the box body and the equipment cabinet and the rapid connection/disconnection between the plug-in PCBs and an equipment cabinet circuit.

Description

Drawer type electrical connection box for integrated circuit board

technical field

The utility model relates to circuit board connection equipment of electric power or communication cabinets.

Background technique

In the cabinets in the field of electric power or communication, in order to facilitate the connection between the circuit board and the corresponding interface of the cabinet, a pluggable circuit board frame is generally installed in the cabinet. In order to complete the connection, heat dissipation or other functions of the circuit board, the circuit board socket The frame is usually equipped with functional modules such as a circuit board insertion area and a fan. Although the existing circuit board subframe can be quickly assembled with the cabinet, the electrical connection between the circuit board and the corresponding interface of the cabinet still needs to be realized by cables terminated with connectors, which makes it difficult to quickly remove and insert; and the existing circuit board subframe In order to facilitate cable connection and heat dissipation, most of them are open structures, which are poor in integrity and affect storage and aesthetics.

Utility model content

The purpose of the utility model is to provide a drawer-type electrical connection box used for integrating circuit boards, which can be directly connected to the interface in the cabinet by conductive plugging.

The technical scheme of the utility model is: a drawer-type electrical connection box for integrated circuit boards, including a box body and a circuit board fixing structure and a fan arranged in the box body, and the box body is used for the plug-in end of the cabinet. The outer surface is fixed with more than one connector for mating with the corresponding plug-in terminal in the cabinet, and the connector is provided with a contact piece that can be connected with the circuit board installed in the box for signal.

The inner surface of the mating end of the box body is welded with a main circuit board at the tail end of the contact piece of each connector. Plug\socket for signal connection.

A guide pin mated with a corresponding guide hole in the cabinet is provided on the outer surface of the front end of the cabinet.

The box is a rectangular box surrounded by side panels, a top cover and a bottom panel. The side panels are connected by front and rear end panels and left and right side panels. The connector is fixed on the front end on the outer surface of the board.

The circuit board fixing structure is a circuit board mounting frame respectively fixed on the opposite inner surfaces of the left and right side plates, and the two circuit board mounting frames are relatively provided with a plurality of pairs of circuit board slots for mating multiple circuit boards on the two mounting frames. between racks.

The fan is fixed on one of the side plates on both sides of the box body, and a plurality of heat dissipation through holes corresponding to the fans are distributed on the side plate on the other side.

Each of the circuit board installation frames is provided with a heat dissipation hole corresponding to the heat dissipation through hole on the left side plate between the adjacent circuit board slots.

The circuit board slots extend along the length direction of the installation frame and are arranged parallel to each other.

A long slot for reducing the weight of the box body is opened on the bottom plate.

The utility model is provided with a connector on the outer surface of the plug-in end of the box body, which can be mated with the plug-in end in the cabinet, and through the inner end of the contact piece in the connector, the circuit board plugged into the box body is realized. The signal connection, so as to realize the rapid connection or disconnection of the circuit board and the cabinet circuit while the cabinet and the cabinet are plugged in and assembled.

In addition, a circuit board mounting frame is provided on the side plates on both sides of the box insertion end for the circuit board to be inserted between the two side plates, and a fan and cooling holes are provided on the two side plates to make the fan run The flow direction of hot air is along the surface of the circuit board, and the heat dissipation channel is unblocked, which is beneficial to the heat dissipation of the circuit board.

Description of drawings

Fig. 1 is the three-dimensional schematic view of the utility model;

Fig. 2 is a three-dimensional schematic diagram of the utility model after removing the top cover plate.

Detailed ways

As shown in Fig. 1 and Fig. 2, the embodiment of the drawer-type electrical connection box of the present utility model comprises a rectangular box body surrounded by side plates, a top cover plate 14 and a bottom plate 5, and the side plates are composed of front, The rear end plates 1, 2 are connected with the left and right side plates 3, 4. The front end of the box body is the plug-in end for entering the cabinet. The outer surface of the front end plate 1 is fixed with four The plug 13 mated with the socket is provided with a multi-core contact piece 13-1 in the cavity of the plug-in end of the plug 13. On the back of the front plate 1, a layer of main circuit board is welded on the tail end of the multi-core contact piece of each plug 13. The circuit board can be connected with each inserted circuit board by welding conventional plugs and sockets inside the box for signal connection. The connection structure between the circuit boards belongs to the known technology and will not be described in detail here. Connect the signal after plugging. The outer surface of the front end plate 1 is also provided with a guide pin 6 mated with the corresponding guide hole in the cabinet; the opposite inner surfaces of the left and right side plates 3, 4 are respectively fixed with a circuit board mounting frame 9, two The circuit board mounting frame 9 is relatively provided with many pairs of circuit board slots 10 for multiple circuit boards to be mated between the two mounting frames 9, and each circuit board slot 10 extends along the length direction of the mounting frame 9 and is arranged parallel to each other; The side plate 4 is provided with an electric fan installation hole and a fan 7 is fixed therein, and a plurality of cooling through holes 3 corresponding to the fan 7 are distributed on the left side plate 3, and each circuit board mounting frame 9 is adjacent to each other. A long heat dissipation hole 11 corresponding to the heat dissipation through hole 8 on the left side plate 3 is opened between the circuit board slots 10 . The bottom plate 5 is provided with a long slot 12 for reducing the weight of the box body.

Claims (8)

1. drawer type electric connection box that is used for the aggregate circuit plate, the circuit board fixation structure and the fan that comprise casing and wherein configuration, it is characterized in that: described casing is used for being fixed with on the outer surface of the mating side that plugs together with rack the more than one connector that is used for the corresponding inserted terminal inserting of rack, is provided with the contact that can be connected with institute's device, circuit board signal in the casing in the connector.

2. drawer type electric connection box according to claim 1, it is characterized in that: the contact tail end in each connector on the inner surface of described casing mating side is welded with main circuit board, and main circuit board is provided with and is used for carrying out the Cha Tou socket that signal is connected by plug, socket with the circuit board of box house institute plug-in mounting after inserting.

3. drawer type electric connection box according to claim 1 is characterized in that: described casing front end outer surface be provided with use with cabinet in the guide finger of corresponding pilot hole inserting.

4. according to claim 1 or 2 or 3 described drawer type electric connection boxes, it is characterized in that: described circuit board fixation structure is a fixing respectively circuit board installing rack on the opposite inner face of casing side of both sides, casing mating side, be provided with relatively on the two circuit board installing racks many to board in circuit board slot for the inserting of multichip circuit plate between two installing racks; Described fan is fixed on one of them of casing two sides, is distributed with a plurality of heat radiation through holes corresponding with fan on the another side.

5. drawer type electric connection box according to claim 4, it is characterized in that: described casing be by around side plate, lamina tecti and the base plate rectangular box of enclosing, side plate is formed by connecting by forward and backward end plate and left and right side plate around described, described connector is fixed on the outer surface of front end-plate, and described two circuit board installing racks, fan, louvre correspondence are located on the left and right side plate of casing.

6. drawer type electric connection box according to claim 5 is characterized in that: on described each circuit board installing rack in offer between the adjacent circuit plate slot with left plate on the corresponding louvre of heat radiation through hole.

7. drawer type electric connection box according to claim 5 is characterized in that: described each board in circuit board slot extends and is arranged in parallel along the length direction of installing rack.

8. drawer type electric connection box according to claim 4 is characterized in that: offer the elongated slot that is used to alleviate box weight on the described base plate.

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