Highly integrated new energy automobile battery distribution unit

Abstract

The utility model discloses a new energy automobile battery distribution unit which is free of wire harness, high in integration degree and compact, and comprises a box body with a long strip-shaped structure, the box body is provided with an assembly space extending along the length direction, and the upper part of the box body is provided with an opening corresponding to the assembly space; the support can be installed in the assembling space from the opening, and the support is provided with a cover plate capable of sealing the opening; a circuit board is arranged on the bracket, and is electrically connected with a heating loop, a control loop and a pre-charging loop; wherein the circuit board is provided with a wiring terminal, a pin of the electrical component is provided with a contact pin, and the electrical connection between the electrical component and the circuit board is realized through the combination of the contact pin and the wiring terminal. The utility model relates to the technical field of automobile parts.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, and more exactly relates to a highly integrated new energy automobile battery distribution unit. BACKGROUND

[0002] As an important part of the battery pack, the safety, reliability and intelligence of BDU are increasingly concerned. The traditional BDU needs to be connected between various electrical components through a wire harness for control and monitoring. This method has problems such as complex wiring, susceptibility to interference, and difficult maintenance. In order to solve these problems, wireless harness BDU has emerged. Wireless harness BDU connects control and monitoring signals through PCB. Compared with the traditional wired connection method, wireless harness BDU has the advantages of simple wiring, strong anti-interference ability, and convenient maintenance. SUMMARY

[0003] In view of the deficiencies and defects of the prior art, a wireless harness, highly integrated, and compact new energy automobile battery distribution unit is provided.

[0004] A highly integrated new energy automobile battery distribution unit comprises:

[0005] A box body in a long strip structure is provided with an assembly space extending in the length direction, and an opening is provided on the upper part of the box body corresponding to the assembly space;

[0006] A support is loaded into the assembly space from the opening, and the support is provided with a cover plate that can close the opening;

[0007] An electric circuit board is provided on the support, and the electric circuit board is electrically connected with a heating circuit, a control circuit, and a pre-charging circuit;

[0008] The electric circuit board is provided with a terminal, and the pins of the electric components of the heating circuit, the control circuit, and the pre-charging circuit are provided with pins, which are combined with the terminal to realize the electrical connection between the electric components and the electric circuit board.

[0009] Compared with the prior art, the highly integrated new energy automobile battery distribution unit of the utility model has the following advantages:

[0010] The heating circuit, the control circuit, and the pre-charging circuit are integrated on the PCB board, reducing the assembly parts and having a high degree of integration;

[0011] The terminal is provided on the electric circuit board, the pins of the multiple electric components are inserted into the corresponding terminals to realize the electrical connection, replacing the traditional wire harness scheme and the welding scheme, and the wireless harness BDU also has the advantages of simple disassembly and assembly, full automation production, and stable and reliable connection.

[0012] The circuit board and the electrical components are integrated on the bracket, the integration degree of the bracket is higher, the bracket can be vertically installed into the assembly space through the opening, the installation is completed, and full-automatic assembly can be realized, and the bracket has the characteristics of fewer parts, reasonable structure layout, high compactness and small space occupation.

[0013] The cover plate of the bracket can shield the opening to reduce the entry of sundries and improve safety performance.

[0014] As an improvement of the utility model, the bracket further comprises a side plate arranged at the lower part of the cover plate, the side plate corresponds to a side wall of the assembly space, and a flat first mounting area is formed between the side plate and the side wall,

[0015] The circuit board is arranged in the first mounting area.

[0016] As an improvement of the utility model, a second mounting area is arranged on the bracket between the lower part of the cover plate and the side wall, the second mounting area is arranged to be separated from the first mounting area through the side plate, and the electrical components are arranged in the second mounting area.

[0017] As an improvement of the utility model, the electrical components comprise main relays and pre-charging relays and pre-charging resistors arranged at intervals along the length direction of the bracket.

[0018] The second mounting area is provided with a retaining structure for retaining the positions of the main relays, the pre-charging relays and the pre-charging resistors.

[0019] As an improvement of the utility model, the terminal is a claw terminal, the pins of the main relays, the pre-charging relays and the pre-charging resistors extend out and are inserted into the corresponding claw terminals through the side plate to realize electrical connection.

[0020] As an improvement of the utility model, the main relays comprise first relays and second relays.

[0021] A fuse is further arranged in the second mounting area, one end of the fuse is connected with an input current-carrying copper bar, and the other end of the fuse is electrically connected to a high-voltage contact a of the first relay through an intermediate current-carrying copper bar,

[0022] A high-voltage contact B of the second relay is electrically connected with an output current-carrying copper bar.

[0023] The high-voltage contact b of the first relay and the high-voltage contact A of the second relay are respectively extended to the cover plate through the extension of the extension current-carrying copper bar, and the cover plate is further provided with a protective cover for shielding the terminal.

[0024] As a kind of improvement of the utility model, the circuit board is further provided with the socket exposed from the cover plate. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the structure schematic diagram of the utility model.

[0026] Figure 2 It is the structure schematic diagram of the utility model's parts in explosive state.

[0027] Figure 3 It is the structure schematic diagram of the utility model Figure 2 Enlarged schematic diagram of structure at A.

[0028] Figure 4 It is the structure schematic diagram of part electric component of the utility model.

[0029] Figure 5 It is the local structure schematic diagram of support of the utility model.

[0030] Figure 6 It is the local structure schematic diagram of support of the utility model.

[0031] Figure 7 It is the structure schematic diagram of the utility model.

[0032] Figure 8 It is the circuit diagram of the utility model.

[0033] As shown in the figure: 1, box body;1.1, assembly space;1.11, opening;1.12, side wall;2, support;2.1, cover plate;2.2, side plate;3, circuit board;3.1, terminal;3.2, socket;4, pin;5, main relay;5.1, first relay;5.11, high voltage contact a;5.12, high voltage contact b;5.2, second relay;5.21, high voltage contact A;5.22, high voltage contact B;6, pre-charge relay;7, pre-charge resistance;8, fuse. DETAILED DESCRIPTION

[0034] The utility model will be further described in connection with the drawings and specific embodiment.

[0035] Please refer to Figures 1-8 As shown in the figure, a kind of highly integrated new energy automobile battery distribution unit, comprising:

[0036] The box body 1 of strip structure, the box body 1 is provided with assembly space 1.1 along the length direction extension, and box body 1 upper portion is provided with opening 1.11 corresponding assembly space 1.1;

[0037] A bracket 2 which can be loaded into the assembly space 1.1 from the opening 1.11, and the bracket 2 is provided with a cover plate 2.1 which can close the opening 1.11;

[0038] The bracket 2 is provided with a circuit board 3 which is electrically connected with a heating circuit, a control circuit and a pre-charging circuit;

[0039] The circuit board 3 is provided with a wiring terminal 3.1, the pins of the electrical components of the heating circuit, the control circuit and the pre-charging circuit are provided with a pin 4, and the electrical components are electrically connected with the circuit board 3 through the combination of the pin 4 and the wiring terminal 3.1.

[0040] Compared with the prior art, the highly integrated new energy automobile battery distribution unit has the following advantages:

[0041] The heating circuit, the control circuit and the pre-charging circuit are integrated on the PCB board, the assembly parts are reduced, and the integration degree is high;

[0042] The wiring terminal 3.1 is arranged on the circuit board 3, the pins of the plurality of electrical components are inserted into the corresponding wiring terminal 3.1 to realize electrical connection, and the traditional wire harness scheme and the welding scheme are replaced.

[0043] The circuit board 3 and the electrical components are integrated on the bracket 2, and the integration degree of the bracket 2 is higher, the bracket 2 can be vertically loaded into the assembly space 1.1 from the opening 1.11, and the installation can be completed, and the full-automatic assembly can be realized.

[0044] The cover plate 2.1 of the bracket 2 can shield the opening 1.11 to reduce the entry of sundries and improve the safety performance.

[0045] As an improvement of the utility model, the bracket 2 further includes a side plate 2.2 arranged at the lower part of the cover plate 2.1, the side plate 2.2 corresponds to one side wall 1.12 of the assembly space 1.1, and a flat first mounting area is formed between the side plate 2.2 and the side wall 1.12,

[0046] The circuit board 3 is arranged in the first mounting area.

[0047] The side plate 2.2 and the side wall 1.12 are vertically arranged, and the first mounting area is vertically and flatly arranged between the side plate 2.2 and the side wall 1.12 and extends along the length direction of the box body 1.

[0048] The circuit board 3 is fixed on the outer side of the side plate 2.2 through a threaded connection, and is located in a relatively closed first mounting area when the circuit board 3 is mounted on the support 2 and the support 2 is loaded into the assembly space 1.1, and the opening 1.11 is covered by the cover plate 2.1;

[0049] The improved structure is more compact, facilitates miniaturization of the device, and has good sealing performance, so that foreign matter is less likely to enter, and the reliability and service life of the device are better.

[0050] As an improvement of the utility model, a second mounting area is arranged on the support 2 between the lower part of the cover plate 2.1 and the side wall 1.12, and the second mounting area is arranged to be separated from the first mounting area by the side plate 2.2, and the electrical components are arranged in the second mounting area.

[0051] As an improvement of the utility model, the electrical components include main relays 5 and pre-charging relays 6 and pre-charging resistors 7 arranged at intervals along the length direction of the support 2.

[0052] The second mounting area is provided with a retaining structure for retaining the positions of the main relays 5, the pre-charging relays 6 and the pre-charging resistors 7.

[0053] The second mounting area is arranged between the lower part of the cover plate 2.1 and the inner side of the side plate 2.2, and is arranged to be separated from the first mounting area, and the electrical components are assembled in the second mounting area.

[0054] The retaining structure in the second mounting area can be a buckle, and after the main relays 5, the pre-charging relays 6 and the pre-charging resistors 7 are buckled, the positions of the electrical components can be retained, the electrical components can be stably limited in the second mounting area, and effective isolation measures exist between the electrical components and the circuit board 3, reducing contact, and the structure layout is reasonable and more compact.

[0055] As an improvement of the utility model, the terminal 3.1 is a claw terminal 3.1, the pins of the main relays 5, the pre-charging relays 6 and the pre-charging resistors 7 extend out and are inserted into the corresponding claw terminals 3.1 through the side plate 2.2 to realize electrical connection.

[0056] The claw terminal 3.1 is adopted, the pins at the tail end of the terminal 3.1 are welded and fixed with corresponding pins of the circuit board 3, the claw terminal 3.1 is provided with clamping claws at the front end, the clamping claws form elastic clamping gaps therebetween, the pins of the electrical components can be inserted into the clamping gaps, and the elastic action of the clamping claws can stably clamp the pins to maintain effective conduction.

[0057] As an improvement of the utility model, the main relay 5 includes a first relay 5.1 and a second relay 5.2.

[0058] The second mounting area is also provided with a fuse 8, one end of the fuse 8 is connected with an input current-carrying copper bar, the other end of the fuse 8 is electrically connected to the high-voltage contact a5.11 of the first relay 5.1 through an intermediate current-carrying copper bar,

[0059] The high-voltage contact B5.22 of the second relay 5.2 is electrically connected with an output current-carrying copper bar.

[0060] The high-voltage contact b5.12 of the first relay 5.1 and the high-voltage contact A5.21 of the second relay 5.2 are respectively extended to the cover plate 2.1 through the extension of the extension current-carrying copper bar, and the cover plate 2.1 is also provided with a protective cover for shielding the terminal.

[0061] After the above improvement, the electrical components of the device are electrically connected through the current-carrying copper bar, and the electrical components and the circuit board 3 are electrically connected through the detachable pins and the terminal 3.1. Compared with the device connected by wire harness, the design without wire harness has the advantages of simple wiring, compact structure, high integration, reliable operation, long service life, full automation production, easy disassembly and maintenance, etc.

[0062] As an improvement of the utility model, the circuit board 3 is also provided with a socket 3.2 exposed from the cover plate 2.1. After the above improvement, the socket 3.2 can be used for electrically connecting the device with external electrical components.

[0063] The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above-mentioned embodiments. Any technical solution under the idea of the utility model belongs to the protection scope of the utility model. It should be noted that for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the utility model are also considered as the protection scope of the utility model.

Claims

1. A highly integrated new energy vehicle battery distribution unit, characterized in that, The utility model relates to a kind of electric heating device, including: Box (1), the box (1) is provided with assembly space (1.1), and box (1) upper portion is provided with opening (1.11) corresponding assembly space (1.1); Support (2), the support (2) can be loaded into assembly space (1.1) from opening (1.11), and support (2) is provided with cover plate (2.1) that can close opening (1.11); The circuit board (3) is provided on the support (2), and the heating circuit, the control circuit, the pre-charging circuit are electrically connected to the circuit board (3); Wherein the circuit board (3) is provided with terminal (3.1), and the pins of the electrical components of the heating circuit, the control circuit, the pre-charging circuit are provided with pin (4), and the combination of pin (4) and terminal (3.1) is to realize the electrical connection between electrical components and circuit board (3).

2. The highly integrated new energy vehicle battery distribution unit according to claim 1, characterized in that: The support (2) further includes the side plate (2.2) arranged at the lower portion of the cover plate (2.1), the side plate (2.2) corresponds to one side wall (1.12) of the assembly space (1.1), and a flat first mounting area is formed between the side plate (2.2) and the side wall (1.12), The circuit board (3) is arranged in the first mounting area.

3. The highly integrated new energy vehicle battery distribution unit according to claim 2, characterized in that: The second mounting area is arranged between the lower portion of the cover plate (2.1) and the side wall (1.12) of the support (2), and the second mounting area is separated from the first mounting area by the side plate (2.2), and the electrical components are arranged in the second mounting area.

4. The highly integrated new energy vehicle battery distribution unit according to claim 3, characterized in that: The electrical components include a main relay (5), a pre-charging relay (6) and a pre-charging resistor (7) arranged along the length direction of the support (2); The second mounting area is provided with a retaining structure for retaining the positions of the main relay (5), the pre-charging relay (6) and the pre-charging resistor (7).

5. The highly integrated new energy vehicle battery distribution unit according to claim 4, characterized in that: The terminal (3.1) is a claw terminal (3.1), the pins of the main relay (5), the pre-charging relay (6) and the pre-charging resistor (7) extend out and are inserted into the corresponding claw terminal (3.1) through the side plate (2.2) to realize electrical connection.

6. The highly integrated new energy vehicle battery distribution unit according to claim 4, characterized in that: The main relay (5) includes a first relay (5.1) and a second relay (5.2); The second mounting area is further provided with a fuse (8), one end of the fuse (8) is connected to an input current-carrying copper bar, the other end of the fuse (8) is electrically connected to a high-voltage contact a (5.11) of the first relay (5.1) through an intermediate current-carrying copper bar, The high-voltage contact B (5.22) of the second relay (5.2) is electrically connected to an output current-carrying copper bar; The high-voltage contact b (5.12) of the first relay (5.1) and the high-voltage contact A (5.21) of the second relay (5.2) are respectively extended to the cover plate (2.1) by the extension of the extension current-carrying copper bar, and the cover plate (2.1) is further provided with a protective cover for shielding the terminal.

7. The highly integrated new energy vehicle battery distribution unit according to claim 1, characterized in that: The circuit board (3) is further provided with a socket (3.2) exposed from the cover plate (2.1).

Images