Fast-charging BDU structure in battery box

Abstract

The utility model discloses a fast charging BDU structure in a battery box, which is characterized in that a BDU is arranged in a BDU base; the side wall of the BDU base is provided with an opening which is communicated with the interior of the BDU base; the contactor of the BDU is respectively installed on the input copper bar and the output copper bar, the connector is installed on the output copper bar, the connector is connected with the contactor of the BDU through the coil outgoing line, and the socket of the connector directly faces the opening; at least one side wall of the BDU base protrudes outwards to form a protruding side wall, and the opening is formed in the protruding side wall. According to the device, the contactor of which the coil is led out as a bare wire is adopted, so that the position of a connector can be selectively arranged; the connection position of the connector and the external wire harness end is changed, so that the external wire harness end can be conveniently butted in actual use, the space is large, and the operation is convenient; during maintenance, the measurement of the universal meter is more convenient; and the contactor led out by the bare wire is lower in price, so that the overall cost of the BDU is lower.

Description

Technical Field

[0001] The utility model relates to relevant technical fields such as battery systems in new energy electric vehicles, and in particular to a fast-charging BDU structure in a battery box. Background Art

[0002] In new energy electric vehicles, the battery system is the vehicle's energy system, and therefore serves as the vehicle's energy distribution mechanism. This energy distribution requires a power distribution unit (BDU) to control the battery system's charge and discharge balance. This power distribution unit is known as the Battery Energy Distribution Unit (BDU). Traditional BDUs used in fast-charging circuits have built-in connectors for the low-voltage coil leads of the contactors, making them inapplicable to many wire-type contactors.

[0003] Currently, most fast-charging BDUs have internal contactors with connectors for their coil leads, integrating the contactor and connector into a single unit. This approach is costly. Furthermore, in practice, the external wiring harness is inserted into the connector, which is very close to the corner of the BDU base. The connector sits against this corner, leaving little room for the connector and making it difficult to remove. Utility Model Content

[0004] In view of this, in order to solve the above problems, the purpose of the present invention is to provide a fast charging BDU structure in a battery box, which includes:

[0005] BDU, BDU base, input copper busbar, output copper busbar, coil lead wires, connectors;

[0006] The BDU is installed inside the BDU base;

[0007] The side wall of the BDU base has an opening that penetrates the interior;

[0008] The contactor of the BDU is respectively installed with the input copper busbar and the output copper busbar, the connector is installed on the output copper busbar, and the connector is connected to the contactor of the BDU through the coil lead wire, and the socket of the connector is facing the opening;

[0009] At least one side wall of the BDU base protrudes outward to form a protruding side wall, and the opening is provided on the protruding side wall.

[0010] In the above-mentioned fast charging BDU structure in a battery box, the connector is fixed to the output copper busbar by bolts.

[0011] The above-mentioned fast charging BDU structure in the battery box, wherein the inner wall of the BDU base is provided with a card slot, and the connector is provided with a card block, and the card block can be matched and connected with the card slot.

[0012] The above-mentioned fast charging BDU structure in the battery box further includes: a BDU upper cover, which is installed on the upper end of the BDU base.

[0013] In the above-mentioned fast charging BDU structure in a battery box, the two opposite outer side walls of the BDU base are recessed inward to form recessed side walls, and each of the recessed side walls is provided with a connecting bridge.

[0014] The above-mentioned fast charging BDU structure in the battery box, wherein the two side walls of the BDU upper cover extend downward and are provided with two hooks, the two hooks slide into the recessed side walls and are hooked on the two connecting bridges.

[0015] In the above-mentioned fast charging BDU structure in the battery box, a connector fixing seat is fixedly installed inside the opening, and the connector is installed on the connector fixing seat.

[0016] The above-mentioned fast charging BDU structure in the battery box, wherein the BDU is fixedly installed on the BDU base by a plurality of bolts.

[0017] In the above-mentioned fast charging BDU structure in a battery box, a plurality of slide rails are provided extending outward from the interior of the BDU base.

[0018] In the above-mentioned fast charging BDU structure in a battery box, the side wall of the BDU upper cover extends downward to be provided with a plurality of sliding members, and the plurality of sliding members slide into the slide rails.

[0019] Compared with the prior art, the above technical solution has the following positive effects:

[0020] 1. The contactor with bare wire leads is used, so that the position of the connector can be set selectively;

[0021] 2. The connection position between the connector and the external wiring harness has been changed, which makes it easier to connect the external wiring harness in actual use, with more space and convenient operation;

[0022] 3. The connection position between the connector and the external wiring harness has been changed, making it more convenient to use a multimeter for measurement during maintenance.

[0023] 4. The contactor with bare wire lead is cheaper, which makes the overall cost of BDU lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an exploded view from a first angle of a fast-charging BDU structure in a battery box according to the present invention.

[0025] Figure 2 This is an exploded view from a second angle of a fast-charging BDU structure in a battery box according to the present invention.

[0026] Figure 3 This is a schematic diagram of the internal structure of a fast charging BDU structure in a battery box of the present invention.

[0027] Figure 4 This is an assembly diagram of a fast-charging BDU structure in a battery box according to the present invention.

[0028] 1. BDU; 2. BDU base; 21. Protruding side wall; 22. Recessed side wall; 3. Input copper busbar; 4. Output copper busbar; 5. Coil lead wire; 6. Connector; 61. Connector port; 7. Contactor; 8. Opening; 9. Slot; 10. Block; 11. BDU cover; 12. Connector fixing seat; 13. Connecting bridge; 14. Hook; 15. Slide rail; 16. Sliding part. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings and specific implementations, but they are not intended to limit the present invention.

[0030] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by those familiar with this technology. They are not used to limit the conditions for implementation of the present invention and therefore have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships should also be considered as the scope of implementation of the present invention without substantially changing the technical content.

[0031] like Figures 1 to 4 As shown, a preferred embodiment of a fast charging BDU structure in a battery box is shown, which includes: BDU1, BDU base 2, input copper bus 3, output copper bus 4, coil lead wire 5, and connector 6.

[0032] The BDU 1 is installed inside the BDU base 2; the side wall of the BDU base 3 has an opening 8 that passes through the interior; the contactor 7 of the BDU 1 is respectively installed with the input copper bus 3 and the output copper bus 4, and the connector 6 is installed on the output copper bus 4, and the connector 6 is connected to the contactor 7 of the BDU 1 through the coil lead wire 5, and the socket 61 of the connector 6 is opposite to the opening 8; at least one side wall of the BDU base 2 protrudes outward to form a protruding side wall 21, and the opening 8 is provided on the protruding side wall 21.

[0033] During actual use, the contactor 7 of BDU1 adopts a contactor 7 with a bare wire lead-out coil. The contactor 7 and the connector 6 are separately arranged, and the contactor 7 and the connector 6 are connected through the coil lead-out wire 5. The position of the connector 6 is not restricted. At this time, the opening 8 on the outer wall of the BDU base 2 can be set at any position on the side wall of the BDU base 2. The connector 6 is connected to the external wiring harness end through the opening 8 to ensure that the position of the opening 8 can facilitate the docking of the external wiring harness end, and there will be no problems such as small space and difficult operation.

[0034] The opening 8 of the device is arranged on the protruding side wall 21, so that when the connector 6 is connected to the external wiring harness end, the external wiring harness end can be conveniently docked, the space is large, and the operation is convenient.

[0035] The present invention also has the following implementation methods based on the above:

[0036] Furthermore, a fast charging BDU structure in a battery box is provided, wherein the connector 6 is fixed to the output copper bus 4 by bolts. Specifically, the bolts pass through the output copper bus 4 to fix the connector 6.

[0037] Furthermore, a fast charging BDU structure in a battery box is provided, wherein the inner wall of the BDU base 2 is provided with a card slot 9, and the connector 6 is provided with a card block 10, which can be matched and connected to the card slot 9. Specifically, the inner wall of the BDU base 2 has a card slot 9, and the connector 6 is limited in the position of the card slot 9 by the card block 10, so that the connector 6 can be limited relative to the BDU base 2.

[0038] Furthermore, a fast charging BDU structure in a battery box further includes: a BDU upper cover 11, which is installed on the upper end of the BDU base 2. Specifically, the BDU upper cover 11 and the BDU base 2 form a protective shell as a whole, which can protect the BDU.

[0039] Furthermore, a fast charging BDU structure in a battery box is provided, wherein two opposite outer side walls of the BDU base 2 are recessed inward to form recessed side walls 22 , and each recessed side wall 22 is provided with a connecting bridge 13 .

[0040] Furthermore, a fast-charging BDU structure in a battery box is provided, wherein two hooks 14 are provided on the two side walls of the BDU cover 11, which extend downward. The two hooks 14 slide into the recessed side walls 22 and are hooked on the two connecting bridges 13. Specifically, the BDU cover 11 and the BDU base 2 are fixedly installed by the hooks 14 and the connecting bridges 13, making installation and removal simple and fast.

[0041] Furthermore, a fast charging BDU structure in a battery box is provided, wherein a connector holder 15 is fixedly installed inside the opening 8, and the connector 6 is installed on the connector holder 15. Specifically, the connector 6 can be restrained in the BDU base 2 in various ways, such as a card block slot, the connector holder 15, a clip, etc., which can ensure that the connector 6 is restrained in the interior of the BDU base 2 and can be quickly installed and removed.

[0042] Furthermore, a fast charging BDU structure in a battery box is provided, wherein the BDU 1 is mounted on the bottom of the BDU base 2 by a plurality of screws.

[0043] Furthermore, a fast charging BDU structure in a battery box is provided, wherein a plurality of slide rails 15 are provided extending outward from the interior of the BDU base 2 .

[0044] Furthermore, a fast-charging BDU structure in a battery box is provided, wherein the side walls of the BDU upper cover 11 extend downwardly and are provided with a plurality of sliding members 16, and the plurality of sliding members 16 slide into the slide rails 15. Specifically, when the BDU upper cover 11 is installed on the upper end of the BDU base 2, first, the two hooks 14 of the BDU upper cover 11 are placed in the two recessed side walls 22 of the BDU base 2, and the BDU upper cover 11 is slid downward. After sliding a certain distance, the sliding members 16 on the BDU upper cover 11 slide into the slide rails 15 of the BDU base 2, and the BDU upper cover 11 is continued to slide downward until all the sliding members 16 slide into the slide rails 15. At this time, the hooks 14 are hooked at the position of the connecting bridge 13, and the sliding members 16 and the slide rails 15 can limit the BDU upper cover 11 and the BDU base 2.

[0045] The above description is only a preferred embodiment of the present invention and does not limit the implementation method and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A fast charging BDU structure in a battery box, characterized in that: include: BDU, BDU base, input copper busbar, output copper busbar, coil lead wires, connectors; The BDU is installed inside the BDU base; The side wall of the BDU base has an opening that penetrates the interior; The contactor of the BDU is respectively installed with the input copper busbar and the output copper busbar, the connector is installed on the output copper busbar, and the connector is connected to the contactor of the BDU through the coil lead wire, and the socket of the connector is facing the opening; At least one side wall of the BDU base protrudes outward to form a protruding side wall, and the opening is provided on the protruding side wall.

2. A fast charging BDU structure in a battery box according to claim 1, characterized in that: The connector is fixed to the output copper busbar by means of bolts.

3. The fast charging BDU structure in a battery box according to claim 1, characterized in that: The inner wall of the BDU base is provided with a card slot, and the connector is provided with a card block, and the card block can be matched and connected with the card slot.

4. The fast charging BDU structure in a battery box according to claim 1, characterized in that: Also includes: The BDU upper cover is installed on the upper end of the BDU base.

5. A fast charging BDU structure in a battery box according to claim 4, characterized in that: The two opposite outer side walls of the BDU base are both recessed inward to form recessed side walls, and each of the recessed side walls is provided with a connecting bridge.

6. A fast charging BDU structure in a battery box according to claim 5, characterized in that: Two hooks are provided on the two side walls of the BDU upper cover extending downwards. The two hooks slide into the recessed side walls and are hooked on the two connecting bridges.

7. The fast charging BDU structure in a battery box according to claim 1, characterized in that: A connector fixing seat is fixedly installed inside the opening, and the connector is installed on the connector fixing seat.

8. The fast charging BDU structure in a battery box according to claim 1, characterized in that: The BDU is fixed to the BDU base by a plurality of bolts.

9. The fast charging BDU structure in a battery box according to claim 4, characterized in that: A plurality of slide rails are provided on the inside of the BDU base extending outward.

10. A fast charging BDU structure in a battery box according to claim 9, characterized in that: A plurality of sliding members are provided on the side wall of the BDU upper cover extending downward, and the plurality of sliding members slide into the slide rails.

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