Battery cluster connecting structure and battery cabinet

Abstract

The utility model discloses a battery cluster connecting structure and a battery cupboard, the battery cluster connecting structure comprises a plurality of battery plug-in boxes, each battery plug-in box comprises a box body and a battery module, the battery module is arranged in an accommodating cavity of the box body, and the box body is provided with an opening structure corresponding to the output end of the battery module; any two battery plug-in boxes can penetrate through the corresponding opening structures through the copper bars so as to be connected in series or in parallel with the corresponding two battery modules. The box body is provided with the opening structures corresponding to the output ends of the battery modules, so that the copper bars can be directly connected with the output ends of the battery modules of the two battery plug-in boxes through the opening structures, the two battery plug-in boxes can be connected in series or in parallel through the copper bars, structures such as connectors and high-voltage wire harnesses are not needed, the connection structure is simple, and the cost is low. The installation cost is greatly reduced, the occupied space of the connection structure is small, and the space utilization rate of the battery cabinet can be greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery, in particular to a battery cluster connection structure and a battery cabinet. BACKGROUND

[0002] A plurality of battery plug-in boxes are usually included in the battery cabinet, and the currents of the plurality of battery plug-in boxes need to be converged for supplying power to certain electrical equipment. Since the electrical elements of the battery plug-in box are arranged in the accommodating cavity formed by the box body and the box cover, the high-voltage output of the battery plug-in box needs to be led out to the outside of the battery plug-in box through the connector, and then the high-voltage wire harness connection is realized outside the battery plug-in box to realize the series connection or parallel connection between the plurality of battery plug-in boxes. This connection mode requires the use of copper bars to connect the battery modules and the connector inside the battery plug-in box, and then the series connection or parallel connection between the plurality of battery plug-in boxes is realized outside the battery plug-in box through the high-voltage wire harness connection, which not only increases the setting of the connector and the copper bar, but also makes the connection structure complex and the cost high, and the external high-voltage wire harness connection occupies a large space, which reduces the space utilization of the battery cabinet. SUMMARY

[0003] To solve the above-mentioned defects in the prior art, the purpose of the present application is to provide a battery cluster connection structure and a battery cabinet, which realizes the connection between the battery plug-in boxes through a simple structure, reduces the cost, occupies less space, and greatly improves the space utilization of the battery cabinet.

[0004] The first aspect of the present application provides a battery cluster connection structure, comprising: a plurality of battery plug-in boxes, the battery plug-in box comprising a box body and a battery module, the battery module being arranged in the accommodating cavity of the box body, the box body being provided with an opening structure corresponding to the output end of the battery module, and any two battery plug-in boxes being capable of being connected in series or parallel through the copper bars passing through the corresponding opening structures to connect the corresponding two battery modules.

[0005] As a preferred embodiment, in the first aspect of the present application, the box body comprises a bottom plate, two oppositely arranged side plates and two oppositely arranged end plates, the two side plates and the two end plates being arranged at the circumferential edge of the bottom plate to form an accommodating cavity with an open top end, the battery module being arranged in the accommodating cavity, and the output end of the battery module being arranged corresponding to the top of the end plate.

[0006] As a preferred embodiment, in the first aspect of the present application, the battery module comprises a battery pack and a CCS wire harness plate, the CCS wire harness plate being electrically connected to the battery pack, the output end of the CCS wire harness plate being arranged corresponding to the top of the end plate, and any two battery plug-in boxes being capable of being connected in series or parallel through the copper bars to electrically connect the corresponding two CCS wire harness plates.

[0007] As a preferred implementation, in the first aspect of the present application, the output end of the CCS harness plate is provided with an aluminum row, and any two battery plug-in boxes can be connected in series or in parallel through the copper row and the corresponding two aluminum rows.

[0008] As a preferred implementation, in the first aspect of the present application, the end plate is provided with a conductive block corresponding to the aluminum row, and the aluminum row is fixedly installed on the corresponding conductive block.

[0009] As a preferred implementation, in the first aspect of the present application, the conductive block is provided with a mounting surface facing away from the battery module, the aluminum row is arranged above the conductive block, and the end of the aluminum row is bent to be fixedly attached to the mounting surface, and any two battery plug-in boxes can be connected in series or in parallel through the copper row and the bent end of the corresponding two aluminum rows.

[0010] As a preferred implementation, in the first aspect of the present application, the copper row includes a series copper row and a parallel copper row, and the positive output end and the negative output end of the battery module of the two battery plug-in boxes are connected through the series copper row to be connected in series, and the positive output end and the positive output end and the negative output end and the negative output end of the battery module of the two battery plug-in boxes are connected through the parallel copper row to be connected in parallel.

[0011] As a preferred implementation, in the first aspect of the present application, the copper row further includes a positive output copper row and a negative output copper row, and the positive output end of the battery module of one battery plug-in box is connected to the electrical equipment through the positive output copper row, and the negative output end of the battery module of the other battery plug-in box is connected to the electrical equipment through the negative output copper row.

[0012] The second aspect of the present application provides a battery cabinet, comprising the above battery cluster connection structure.

[0013] As a preferred implementation, in the second aspect of the present application, the battery cabinet comprises a cabinet body, the cabinet body is provided with a plurality of mounting positions adapted to the battery plug-in boxes, and the plurality of battery plug-in boxes are placed one by one in the mounting positions.

[0014] The battery cluster connection structure and the battery cabinet provided by the present application have the following technical effects:

[0015] The opening structure provided on the cabinet body corresponding to the output end of the battery module allows the copper row to directly connect the output ends of the battery modules of the two battery plug-in boxes through the opening structure, so that the two battery plug-in boxes are connected in series or in parallel through the copper row, without the need for connectors, high-voltage harnesses and other structures, the connection structure is simple, which is conducive to greatly reducing the installation cost, and the connection structure occupies less space, which can greatly improve the space utilization of the battery cabinet. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural schematic diagram of a battery cabinet of the present application;

[0017] Figure 2 Structure diagram of battery plug-in box of the present application;

[0018] Figure 3 Structure diagram of battery plug-in box of the present application; Figure 2 Enlarged view at A in the middle;

[0019] Figure 4 Structure diagram of battery plug-in box of the present application;

[0020] Figure 5 Structure diagram of battery plug-in box of the present application; Figure 4 Enlarged view at B in the middle;

[0021] Figure 6 Structure diagram of CCS harness plate and conductive block of the present application.

[0022] Reference signs:

[0023] 1, battery plug-in box; 11, box body; 111, side plate; 112, end plate; 12, battery module; 121, battery pack; 122, CCS harness plate; 123, aluminum bar; 2, copper bar; 21, series copper bar; 22, parallel copper bar; 23, positive output copper bar; 24, negative output copper bar; 3, conductive block; 31, mounting surface; 4, cabinet body; 41, mounting position. DETAILED DESCRIPTION

[0024] In order to better understand and implement, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application.

[0025] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the present application.

[0027] Reference is made to Figure 1 and Figure 2The application provides a battery cluster connection structure, comprising: a plurality of battery plug-in boxes 1, the battery plug-in box 1 comprising a box body 11 and a battery module 12, the battery module 12 being arranged in a containing cavity of the box body 11, the box body 11 being provided with an opening structure corresponding to an output end of the battery module 12, and any two battery plug-in boxes 1 being able to be connected in series or parallel through copper bars 2 passing through the corresponding opening structures to connect the corresponding two battery modules 12.

[0028] The opening structure provided on the box body 11 corresponding to the output end of the battery module 12 enables the copper bars 2 to directly connect the output ends of the battery modules 12 of the two battery plug-in boxes 1 through the opening structure, so that the two battery plug-in boxes 1 are directly connected in series or parallel through the copper bars 2, the plurality of battery plug-in boxes 1 of the application are directly connected in series or parallel through the connection structure, i.e., directly through the copper bars 2, without the aid of connectors, high-voltage wiring harnesses and other structures, the connection structure is simple, and the installation cost can be greatly reduced.

[0029] The battery cluster connection structure is applied to a battery cabinet, i.e., a battery cabinet comprising the battery cluster connection structure, the battery cabinet further comprising a cabinet body 4 provided with a plurality of mounting positions 41 adapted to the battery plug-in boxes 1, and the plurality of battery plug-in boxes 1 being placed one by one in the mounting positions 41. The plurality of battery plug-in boxes 1 are directly connected in series or parallel through the copper bars 2 in the battery cabinet, the occupied space is small, and the space utilization rate of the battery cabinet can be greatly improved.

[0030] The box body 11 comprises a bottom plate, two oppositely arranged side plates 111 and two oppositely arranged end plates 112, the two side plates 111 and the two end plates 112 being crosswise arranged at the peripheral side edges of the bottom plate to form an upper-end-open containing cavity, the battery module 12 being arranged in the containing cavity, and the output end of the battery module 12 being arranged corresponding to the top of the end plate 112. Taking a square battery plug-in box 1 as an example, the box body 11 is in a square structure, the side wall of the box body 11 being composed of the two oppositely arranged side plates 111 and the two oppositely arranged end plates 112, the upper end of the box body 11 being open without a box cover structure, i.e., the upper end of the box body 11 being open, and the output end of the battery module 12 being directly exposed at the end plate 112, so that the output ends of the battery modules 12 of the two battery plug-in boxes 1 can be directly connected through the copper bars 2 to realize the parallel or series connection between the plurality of battery plug-in boxes 1 through the plurality of copper bars 2, so as to simplify the connection structure and reduce the occupied space on the basis of ensuring the connection effect.

[0031] In combination with Figure 4The battery module 12 includes a battery pack 121 and a CCS harness plate 122, the CCS harness plate 122 is electrically connected to the battery pack 121, and the output end of the CCS harness plate 122 is arranged at the top of the end plate 112. Any two battery plug-in boxes 1 can be connected in series or parallel through the copper bars 2 and the corresponding two CCS harness plates 122 for electrical connection. The battery pack 121 includes at least one battery column, the battery column includes a plurality of battery cells arranged in a row and in contact with each other, the top end of the battery cell is provided with a positive pole and a negative pole, the CCS harness plate 122 is arranged on the battery pack 121 to be electrically connected with the positive pole and the negative pole of the battery cell, and the output end of the CCS harness plate 122 is connected with the copper bar 2, so as to realize the series or parallel connection of the battery pack 121 of another battery plug-in box 1 through the output end of the CCS harness plate 122 and the copper bar 2.

[0032] In combination Figure 3 And Figure 5 The output end of the CCS harness plate 122 is provided with an aluminum bar 123, and any two battery plug-in boxes 1 can be connected in series or parallel through the copper bars 2 and the corresponding two aluminum bars 123 for electrical connection. The aluminum bar 123 is arranged at the end of the corresponding end plate 112, which is convenient for electrical connection with the copper bar 2, and the electrical connection between the aluminum bar 123 and the copper bar 2 can be realized by welding.

[0033] The end plate 112 is provided with a conductive block 3 corresponding to the aluminum bar 123, and the aluminum bar 123 is fixedly installed on the corresponding conductive block 3. The aluminum bar 123 can be fixedly installed on the conductive block 3 through a bolt, and the conductive block 3 is fixed on the end plate 112, so that the aluminum bar 123 is fixed on the end plate 112 through the conductive block 3, realizing the stable arrangement of the aluminum bar 123, so as to ensure the stability of the connection between the aluminum bar 123 and the copper bar 2, and avoid the occurrence of situations such as warping.

[0034] Further, in combination Figure 6 The conductive block 3 is provided with a mounting surface 31 opposite to the battery module 12, the aluminum bar 123 is arranged above the conductive block 3, and the end of the aluminum bar 123 is bent to be fixed on the mounting surface 31. Any two battery plug-in boxes 1 can be connected in series or parallel through the copper bars 2 and the bent ends of the corresponding two aluminum bars 123 for electrical connection. The mounting surface 31 is parallel to and in the same orientation as the outer side of the end plate 112. After the aluminum bar 123 is bent to the mounting surface 31, the bent part of the aluminum bar 123 is fixed on the mounting surface 31 through a bolt, so that the bent part of the aluminum bar 123 is exposed on the outer side of the battery plug-in box 1. In this way, a straight copper bar 2 can be directly used to realize the series or parallel connection of the aluminum bars 123 of two battery plug-in boxes 1, without the need for bending the copper bar 2 and other operations, so as to ensure the stability of the installation of the copper bar 2.

[0035] On the basis of the above structure, the copper bar 2 includes series copper bars 21 and parallel copper bars 22, the positive output end and the negative output end of the battery module 12 of the two battery plug-in boxes 1 are connected through the series copper bars 21 to be connected in series, and the positive output end and the positive output end and the negative output end and the negative output end of the battery module 12 of the two battery plug-in boxes 1 are connected through the parallel copper bars 22 to be connected in parallel. Since there are multiple battery plug-in boxes 1, the overall circuit connection condition may have both series connection and parallel connection, when it is required to connect two battery plug-in boxes 1 in series, the positive aluminum bar 123 of one battery plug-in box 1 and the negative aluminum bar 123 of the other battery plug-in box 1 are connected through the series copper bar 21. When it is required to connect two battery plug-in boxes 1 in parallel, the positive aluminum bar 123 and the negative aluminum bar 123 between the two battery plug-in boxes 1 are connected through the parallel copper bar 22.

[0036] The copper bar 2 further includes a positive output copper bar 23 and a negative output copper bar 24, the positive output end of the battery module 12 of one battery plug-in box 1 is connected to an electrical equipment through the positive output copper bar 23, and the negative output end of the battery module 12 of the other battery plug-in box 1 is connected to the electrical equipment through the negative output copper bar 24. After the series or parallel connection between the multiple battery plug-in boxes 1, the positive aluminum bar 123 of one battery plug-in box 1 and the negative aluminum bar 123 of the other battery plug-in box 1 are left out, and the left-out positive aluminum bar 123 and negative aluminum bar 123 are respectively connected to the electrical equipment through the positive output copper bar 23 and the negative output copper bar 24 to supply power to the electrical equipment.

[0037] The technical means disclosed in the application scheme is not limited to the technical means disclosed in the above embodiments, and also includes the technical scheme composed of any combination of the above technical features. It should be noted that for ordinary skilled persons in the art, without departing from the principles of the application, some improvements and refinements can also be made, which are also considered within the protection scope of the application.

Claims

1. A battery cluster connection structure, characterized in that, include: Multiple battery boxes (1) are provided. Each battery box (1) includes a box body (11) and a battery module (12). The battery module (12) is located in the receiving cavity of the box body (11). The box body (11) has an opening structure corresponding to the output end of the battery module (12). Any two battery boxes (1) can be connected in series or in parallel to the corresponding two battery modules (12) by passing a copper busbar (2) through the corresponding opening structure.

2. The battery cluster connection structure according to claim 1, characterized in that: The housing (11) includes a bottom plate, two oppositely arranged side plates (111) and two oppositely arranged end plates (112). The two side plates (111) and the two end plates (112) are intersected on the peripheral edge of the bottom plate to form a receiving cavity with an upper opening. The battery module (12) is disposed in the receiving cavity, and the output end of the battery module (12) is disposed corresponding to the top of the end plate (112).

3. The battery cluster connection structure according to claim 2, characterized in that: The battery module (12) includes a battery pack (121) and a CCS wiring harness board (122). The CCS wiring harness board (122) is electrically connected to the battery pack (121). The output end of the CCS wiring harness board (122) is set at the top of the end plate (112). Any two battery boxes (1) can be electrically connected by connecting the corresponding two CCS wiring harness boards (122) in series or in parallel through the copper busbar (2).

4. The battery cluster connection structure according to claim 3, characterized in that: The output end of the CCS wiring harness board (122) is provided with an aluminum busbar (123). Any two battery boxes (1) can be electrically connected by connecting the corresponding two aluminum busbars (123) in series or in parallel through the copper busbar (2).

5. The battery cluster connection structure according to claim 4, characterized in that: The end plate (112) is provided with a conductive block (3) corresponding to the aluminum busbar (123), and the aluminum busbar (123) is fixedly installed on the corresponding conductive block (3).

6. The battery cluster connection structure according to claim 5, characterized in that: The conductive block (3) has a mounting surface (31) facing away from the battery module (12). The aluminum busbar (123) is located above the conductive block (3), and the end of the aluminum busbar (123) is bent to fit and fix to the mounting surface (31). Any two battery boxes (1) can be electrically connected by connecting the bent ends of the corresponding two aluminum busbars (123) in series or in parallel through the copper busbar (2).

7. The battery cluster connection structure according to any one of claims 1-6, characterized in that: The copper busbar (2) includes a series copper busbar (21) and a parallel copper busbar (22). The positive and negative output terminals of the battery modules (12) of the two battery boxes (1) are connected in series through the series copper busbar (21). The positive and negative output terminals of the battery modules (12) of the two battery boxes (1) are connected in parallel through the parallel copper busbar (22).

8. The battery cluster connection structure according to claim 7, characterized in that: The copper busbar (2) also includes a positive output copper busbar (23) and a negative output copper busbar (24). The positive output terminal of the battery module (12) of one battery box (1) is connected to electrical equipment through the positive output copper busbar (23), and the negative output terminal of the battery module (12) of the other battery box (1) is connected to electrical equipment through the negative output copper busbar (24).

9. A battery cabinet, characterized in that, include: The battery cluster connection structure according to any one of claims 1-8.

10. The battery cabinet according to claim 9, characterized in that: The battery cabinet includes a cabinet body (4), which has multiple mounting positions (41) adapted to the battery boxes (1), and the multiple battery boxes (1) are placed one by one in the mounting positions (41).

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