CN204858284U - High-voltage power distribution cabinets for new energy vehicles - Google Patents

Abstract

The utility model relates to a high voltage distribution cabinet for new energy automobile, include: the cabinet body, business turn over line panel, electric current protective film piece, high pressure interlocking module, the PCB board, insulating detector, precharge module and circuit protection module, wherein, business turn over line panel sets up on a side of the cabinet body, the vertical setting of PCB board is on another medial surface of the cabinet body, insulating detector setting is on a third medial surface of the cabinet body, and be connected with PCB board electricity, electric current protective film piece, high pressure interlocking module, precharge module and circuit protection module set up internally at the cabinet, and be connected with PCB board electricity respectively. The utility model provides a high voltage distribution cabinet, the business turn over line panel on its outside mouthful side passing through the cabinet body of working a telephone switchboard is realized to make this high voltage distribution cabinet practice thrift wiring space on whole car, and can pass through three -dimensional reasonable layout components and parts, and then practiced thrift the inside wiring space of high voltage distribution cabinet, reduced high voltage distribution cabinet's volume and weight.

Description

High-voltage power distribution cabinets for new energy vehicles

technical field

The utility model relates to the technical field of power distribution cabinets, in particular to a high-voltage power distribution cabinet for new energy vehicles.

Background technique

Existing power distribution cabinets usually adopt the design of multi-faceted incoming and outgoing lines, as shown in Figure 1, and the incoming and outgoing line interfaces use glands, and the cabinet needs to be disassembled to perform wiring operations, resulting in low assembly efficiency and inconvenient maintenance; in addition, The components inside the existing power distribution cabinet adopt a planar layout, and the design of multi-faceted incoming and outgoing lines is adopted, so that the volume of the power distribution cabinet is huge and will occupy more layout space of the whole vehicle. Therefore, the existing power distribution cabinet has defects such as large space occupation and low assembly efficiency.

Utility model content

The purpose of the utility model is to provide a high-voltage power distribution cabinet for new energy vehicles to solve the problems of large space occupation and low assembly efficiency of the power distribution cabinet in the prior art.

The utility model provides a high-voltage power distribution cabinet for new energy vehicles, including: a cabinet body 1, an incoming and outgoing line panel 2, a current protection module 3, a high-voltage interlocking module 4, a PCB board 5, an insulation detector 6, a The charging module 7 and the circuit protection module 8, wherein the incoming and outgoing line panel 2 is arranged on one side of the cabinet 1, the PCB board 5 is vertically arranged on the other inner side of the cabinet 1, and the insulation detector 6 is arranged on the cabinet 1, and is electrically connected to the PCB board 5, the current protection module 3, the high-voltage interlock module 4, the pre-charging module 7 and the circuit protection module 8 are arranged in the cabinet body 1, and are respectively connected to the PCB board 5 electrical connection.

Further, the current protection module 3 is realized by a fuse.

Further, the high voltage interlock module 4 is realized by a relay.

Further, the circuit protection module 8 is realized by using a contactor.

Further, the incoming and outgoing line panel 2 includes an ordinary charging unit 201, a fast charging unit 202, an electric control unit 203 and a total electric access unit 204, and the ordinary charging unit 201, the fast charging unit 202, the electric control unit 203 and the total electric access unit 204 are sequentially arranged on one side of the cabinet body 1 .

Further, the common charging unit 201, the fast charging unit 202, the electric control unit 203 and the total electric access unit 204 are all realized by plug-ins.

The beneficial effect of adopting the above-mentioned technical solution of the utility model is: in the embodiment of the utility model, the external connection port is realized through the incoming and outgoing line panel on one side of the cabinet body of the high-voltage power distribution cabinet, so that the high-voltage power distribution cabinet can be used in the whole vehicle On the one hand, the wiring space is saved, and the components can be arranged rationally in three dimensions, which also saves the wiring space inside the high-voltage power distribution cabinet, thereby reducing the volume and weight of the high-voltage power distribution cabinet.

Description of drawings

Fig. 1 is a schematic structural diagram of an existing power distribution cabinet in the background technology;

Fig. 2 is a schematic structural diagram of a high-voltage power distribution cabinet for new energy vehicles provided by an embodiment of the utility model;

In the accompanying drawings, the list of parts represented by each label is as follows:

1. Cabinet body, 2. Inlet and outlet panel, 3. Current protection module, 4. High voltage interlock module, 5. PCB board, 6. Insulation detector, 7. Pre-charging module, 8. Circuit protection module, 9. Winding Line resistance, 201, ordinary charging unit, 202, fast charging unit, 203, electronic control unit, 204, total power access unit.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments.

The embodiment of the utility model provides a high-voltage power distribution cabinet for new energy vehicles, and Fig. 2 is a schematic structural diagram of the high-voltage power distribution cabinet for new energy vehicles provided by the embodiment of the utility model, as shown in Fig. 2 , The high-voltage power distribution cabinet may include: a cabinet body 1, an incoming and outgoing line panel 2, a current protection module 3, a high-voltage interlocking module 4, a PCB board 5, an insulation detector 6, a pre-charging module 7, and a circuit protection module 8. The cable panel 2 is arranged on one side of the cabinet 1, the PCB board 5 is turned over 90 degrees and vertically arranged on the other inner side of the cabinet 1, and the insulation detector 6 is arranged on the third inner side of the cabinet 1, It is also electrically connected to the PCB board 5, and its insulation detector 6 is mainly used for leakage detection, which can perform online real-time detection and management of the insulation status of the power system busbar and branch circuits of the power distribution cabinet. The current protection module 3 , the high voltage interlock module 4 , the pre-charging module 7 and the circuit protection module 8 are arranged on the bottom plate in the cabinet 1 and electrically connected to the PCB board 5 respectively. In this embodiment, the high-voltage power distribution cabinet can also include a wire-wound resistor 9, which is electrically connected to the PCB board 5, and is arranged on the same side of the cabinet body 1 as the PCB board 5, and its main Used as a voltage divider.

In the embodiment of the utility model, the high-voltage power distribution cabinet is mainly used in new energy vehicles. The external wiring port of the high-voltage power distribution The electrical cabinet saves the wiring space on the vehicle, and through the three-dimensional and reasonable layout of components, it also saves the wiring space inside the high-voltage power distribution cabinet, thereby reducing the volume and weight of the high-voltage power distribution cabinet.

In the above-mentioned embodiments of the present invention, the current protection module 3 can be realized by a fuse, and there can be multiple fuses, which are mainly used for the overcurrent protection of the circuit. When the current exceeds a specified value, the fuse can use itself The heat generated causes the fuse to blow, thereby opening the circuit. The circuit protection module 8 can be realized by using a contactor or a relay, and there can be multiple contactors or relays, mainly used for overvoltage protection, and controlling a large current load through a small current, which can realize long-distance control, and can be self-locking and interlocking at the same time Lock to prevent accidents caused by misuse. The high-voltage interlock module 4 can be realized by a relay or a contactor, and plays the roles of automatic adjustment, safety protection, conversion circuit, etc. in the circuit.

In the above-mentioned embodiment, the incoming and outgoing line panel 2 may include a common charging unit 201, a fast charging unit 202, an electric control unit 203 and a total electric access unit 204, wherein the normal charging unit 201, the fast charging unit 202, the electric control unit 203 and the total electrical access unit 204 are sequentially arranged on one side of the cabinet body 1 . In this embodiment, the ordinary charging unit 201, the fast charging unit 202, the electric control unit 203, and the total power access unit 204 are all realized by using plug-ins, specifically by using Phoenix plug-ins. Therefore, it is not necessary to disassemble the cabinet to Quickly connect with external circuits, thus improving the efficiency of assembly and maintenance.

The high-voltage power distribution cabinet provided by the utility model integrates the pre-charging function of each power distribution system, LOSSwitch function, high-voltage interlock, leakage detection, overvoltage and overcurrent protection, waterproof and dustproof and other functional modules, and expands the fast charging connection function. The integration of high-voltage power distribution and pre-charging functions of the electric drive system in the vehicle improves the integration of the vehicle, adopts a more rational three-dimensional layout, facilitates installation and maintenance, reduces the weight of the vehicle, reduces the cost of the vehicle, and improves the efficiency of the vehicle. The driving safety and maintenance safety level of the whole vehicle ensure the reliability and stability of the system.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the embodiments of the present utility model Scope of technical solutions.

Claims (6)

1. A high-voltage power distribution cabinet for new energy vehicles, characterized in that it includes: a cabinet body (1), an incoming and outgoing line panel (2), a current protection module (3), a high-voltage interlocking module (4), a PCB board (5), insulation tester (6), pre-charging module (7) and circuit protection module (8), the incoming and outgoing line panel (2) is arranged on one side of the cabinet (1), and the The PCB board (5) is vertically arranged on the other inner side of the cabinet (1), and the insulation detector (6) is arranged on the third inner side of the cabinet (1), and is connected with The PCB board (5) is electrically connected, and the current protection module (3), high-voltage interlock module (4), pre-charging module (7) and circuit protection module (8) are arranged in the cabinet (1) , and are electrically connected to the PCB board (5) respectively. 2. The high-voltage power distribution cabinet according to claim 1, characterized in that, the current protection module (3) is realized by a fuse. 3. The high-voltage power distribution cabinet according to claim 1, characterized in that, the high-voltage interlock module (4) is realized by a relay. 4. The high-voltage power distribution cabinet according to claim 1, characterized in that, the circuit protection module (8) is realized by a contactor. 5. The high-voltage power distribution cabinet according to claim 1, characterized in that, the incoming and outgoing line panel (2) includes a common charging unit (201), a fast charging unit (202), an electric control unit (203) and a main power The access unit (204), the ordinary charging unit (201), the fast charging unit (202), the electric control unit (203) and the total electrical access unit (204) are sequentially arranged in one of the cabinets (1) on the side. 6. The high-voltage power distribution cabinet according to claim 5, characterized in that, the common charging unit (201), the fast charging unit (202), the electric control unit (203) and the total electric access unit (204) are all Implemented with plug-ins.