Wiring device for battery module and energy storage equipment

Abstract

The utility model discloses a wiring device for a battery module. The wiring device comprises an insulating shell and an electrical connecting piece, the insulating shell is provided with a first positioning structure which is used for being matched with a second positioning structure of the battery module; the electrical connecting piece is fixed on the insulating shell and is used for realizing electrical connection of the battery modules in the battery module when the first positioning structure and the second positioning structure are matched with each other; a plurality of first positioning structures matched with the same battery module are arranged in the insulating shell and are distributed on the surface of the same side of the insulating shell; the first positioning structures matched with the same battery module are different, and / or the first positioning structures matched with the same battery module are asymmetrically distributed on the insulating shell. According to the wiring device, the insulating shell and the battery module enable all the battery modules of the battery module to be accurately wired through the electrical connecting pieces under the mutual matching action of the positioning structures of the insulating shell and the battery module, and wiring errors are avoided. The utility model further discloses energy storage equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of battery module wiring, and more specifically, to a wiring device for a battery module and also to an energy storage device. Background Art

[0002] The battery module is assembled from multiple battery modules, including a bracket and multiple battery modules fixed to the bracket. The battery modules are connected in series to form an overall positive and negative electrode, which can be used to directly power electrical equipment or to power electrical equipment after being connected in series or in parallel with other battery modules.

[0003] However, the wiring between battery modules in the battery pack is done manually, which has a high error rate and is prone to safety accidents such as battery module short-circuit damage or even explosion and injury.

[0004] Therefore, how to improve the accuracy of wiring between battery modules in a battery module and reduce or even avoid battery short circuit damage and battery explosion and injury accidents is an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0005] In view of this, the utility model provides a wiring device for a battery module, wherein the insulating housing and the battery module cooperate with each other in their respective positioning structures to accurately connect the battery modules of the battery module through electrical connectors, thereby avoiding wiring errors and preventing safety accidents such as short circuit damage to the battery module or even explosion and injury to people, compared with the prior art method of manually connecting the battery modules of the battery module. The utility model also provides an energy storage device using the above wiring device, which improves the accuracy of wiring between battery modules in the battery module, reduces or even avoids accidents such as battery short circuit damage and battery explosion and injury to people.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A wiring device for a battery module, comprising:

[0008] An insulating shell, wherein the insulating shell is provided with a first positioning structure for cooperating with a second positioning structure of the battery module;

[0009] An electrical connector, which is fixed to the insulating housing and is used to electrically connect the battery modules in the battery module when the first positioning structure and the second positioning structure cooperate with each other;

[0010] Among them, there are multiple first positioning structures in the insulating shell that cooperate with the same battery module, and they are distributed on the same side surface of the insulating shell; the first positioning structures that cooperate with the same battery module are different, and / or the first positioning structures that cooperate with the same battery module are asymmetrically distributed on the insulating shell.

[0011] Optionally, in the above wiring device, all of the first positioning structures are distributed on the same side of the insulating shell, and each of the first positioning structures is used to cooperate with the second positioning structure of the same battery module.

[0012] Optionally, in the above-mentioned wiring device, all of the first positioning structures are distributed on two opposite sides of the insulating shell, all of the first positioning structures located on one side of the insulating shell are used to cooperate with the second positioning structure of one of the battery modules, and all of the first positioning structures located on the other side of the insulating shell are used to cooperate with the second positioning structure of another battery module.

[0013] Optionally, in the above wiring device, the first positioning structures cooperating with the same battery module include:

[0014] The shapes of the first positioning structures matched with the same battery module are different, or the sizes of the first positioning structures matched with the same battery module are different.

[0015] Optionally, in the above wiring device, an electrode wiring element is provided on the insulating shell, and the electrode wiring element is electrically connected to the battery module.

[0016] Optionally, in the above wiring device, the electrical connector is embedded in the insulating shell; and a portion of the electrical connector used for electrical connection with the battery module is exposed.

[0017] Optionally, in the above wiring device, the portion of the electrical connector used for electrical connection with the battery module is flush with the side surface of the insulating shell.

[0018] Optionally, in the above wiring device, the portion of the electrical connector used for electrical connection with the battery module is located inside the insulating shell; and a through hole is opened on the side of the insulating shell at a position corresponding to the portion of the electrical connector used for electrical connection with the battery module.

[0019] An energy storage device comprises a battery unit, wherein the battery unit comprises a battery module and a wiring device fixedly connected to the battery module, wherein the wiring device is the wiring device described in any one of the above technical solutions.

[0020] Optionally, in the above energy storage device, there are multiple battery cells, and each of the battery cells is connected in series in sequence through the electrode wiring elements of their respective wiring devices.

[0021] The utility model provides a wiring device for a battery module, comprising an insulating shell and an electrical connector; the insulating shell is provided with a first positioning structure for cooperating with a second positioning structure of the battery module; the electrical connector is fixed to the insulating shell, and is used to enable the battery modules in the battery module to be electrically connected when the first positioning structure and the second positioning structure cooperate with each other; wherein, there are multiple first positioning structures in the insulating shell that cooperate with the same battery module, and they are distributed on the same side surface of the insulating shell; the first positioning structures that cooperate with the same battery module are different, and / or the first positioning structures that cooperate with the same battery module are asymmetrically distributed on the insulating shell.

[0022] In the above wiring device, the first positioning structures that cooperate with the same battery module are different, so that when the battery module and the insulating shell are not accurately aligned, they cannot be assembled in place through the cooperation of the first positioning structure and the second positioning structure, preventing the electrical connector on the insulating shell from connecting to the wrong electrode of the battery module, and avoiding the safety accident of the battery module being damaged by short circuit or even exploding and injuring people due to incorrect wiring. In addition, the first positioning structures that cooperate with the same battery module are asymmetrically distributed on the insulating shell, so that when the battery module and the insulating shell are not accurately aligned, the two cannot be assembled in place through the cooperation of the first positioning structure and the second positioning structure, preventing the electrical connector on the insulating shell from connecting to the wrong electrode of the battery module, and avoiding the safety accident of the battery module being damaged by short circuit or even exploding and injuring people due to incorrect wiring.

[0023] The utility model also provides an energy storage device using the wiring device, which improves the accuracy of wiring between battery modules in a battery module, reduces or even avoids accidents of battery short circuit damage and battery explosion and injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of the energy storage device provided by the embodiment of the utility model;

[0026] Figure 2 A schematic diagram of the structure of a wiring device provided by an embodiment of the utility model;

[0027] Figure 3A schematic diagram of the structure of the wiring device provided by an embodiment of the utility model from another angle;

[0028] in, Figure 1-Figure 3 middle:

[0029] Wiring device 100 ; first positioning structure 101 ; insulating housing 102 ; electrical connector 103 ; battery module 200 ; battery cell 10 ; external cable 300 . DETAILED DESCRIPTION

[0030] The utility model embodiment discloses a wiring device for a battery module, wherein the insulating housing and the battery module cooperate with each other in their respective positioning structures to accurately connect the battery modules of the battery module through electrical connectors, thereby avoiding wiring errors and preventing safety accidents such as short circuit damage to the battery module or even explosion and injury to people compared to the prior art method of manually connecting the battery modules of the battery module. The utility model embodiment also provides an energy storage device using the above wiring device, which improves the accuracy of wiring between battery modules in the battery module, reduces or even avoids accidents such as battery short circuit damage and battery explosion and injury to people.

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-Figure 3The embodiment of the utility model provides a wiring device 100 for a battery module, including an insulating shell 102 and an electrical connector 103; the insulating shell 102 is provided with a first positioning structure 101, and the first positioning structure 101 is used to cooperate with the second positioning structure of the battery module 200; the electrical connector 103 is fixed to the insulating shell 102; the electrical connector 103 is used to achieve electrical connection of the battery modules in the battery module 200 when the first positioning structure 101 and the second positioning structure cooperate with each other so that the insulating shell 102 and the battery module 200 are assembled in place. Among them, the first positioning structure 101 in the insulating shell 102 that cooperates with the same battery module 200 is set to multiple and distributed on the same side surface of the insulating shell 102. Compared with the solution in which the first positioning structure 101 in the insulating shell 102 that cooperates with the same battery module 200 is set to one, it can prevent the insulating shell 102 and the battery module 200 from relative rotation, improve the positioning accuracy of both the insulating shell 102 and the battery module 200, and prevent the first positioning structure 101 and the second positioning structure from cooperating to cause the electrodes of the electrical connector 103 and the battery module in the battery module 200 to deviate from each other when the insulating shell 102 and the battery module 200 are assembled in place, thereby ensuring that the battery module of the battery module 200 can be electrically connected to the corresponding electrical connector 103.

[0033] In order to prevent the first positioning structure 101 and the second positioning structure from matching each other when the insulating housing 102 and the battery module 200 are not aligned accurately, resulting in a battery module wiring error in the battery module 200, any one of the following two methods can be used, or the following two methods can be used at the same time:

[0034] 1. The first positioning structures 101 matched with the same battery module 200 are configured differently; specifically, the first positioning structures 101 matched with the same battery module 200 have different shapes, or the first positioning structures 101 matched with the same battery module 200 have different sizes.

[0035] For example, the first positioning structure 101 that cooperates with the same battery module 200 can be set to include a first positioning column and a first positioning hole. Correspondingly, the second positioning structure that cooperates with the first positioning column is a second positioning hole, and the second positioning structure that cooperates with the first positioning hole is a second positioning column; if during assembly, the angle of the insulating shell 102 deviates to the point where the first positioning column and the second positioning column are aligned, and the first positioning hole and the second positioning hole are aligned, then each first positioning structure 101 and the corresponding second positioning structure cannot cooperate with each other, and the insulating shell 102 and the battery module 200 cannot be assembled with each other.

[0036] For another example, the first positioning structure 101 that cooperates with the same battery module 200 can be configured to include multiple positioning holes with different hole depths. Correspondingly, the second positioning structure includes multiple positioning columns with different lengths, and the length of each positioning column matches the depth of the corresponding positioning hole. If during assembly, the angle of the insulating shell 102 deviates so that the short positioning column is aligned with the deep positioning hole and the long positioning column is aligned with the shallow positioning hole, then when the positioning column and the positioning hole are inserted and matched, the long positioning column cannot be fully inserted into the shallow positioning hole, so that the insulating shell 102 cannot be assembled into place with the battery module 200.

[0037] When the first positioning structure 101 and the second positioning structure cooperate with each other to assemble the insulating shell 102 and the battery module 200 in place, the electrical connector 103 connects the battery modules in the battery module in series, or connects the battery modules in parallel, or connects some battery modules in parallel and then connects them in series with other battery modules. This embodiment does not limit the wiring method of the battery modules in the battery module, and it is only necessary to design the position of the electrical connector 103 according to actual needs. The insulating shell is also provided with an electrode wiring element, which is electrically connected to the battery module; there are two electrode wiring elements, which are respectively connected to the positive and negative electrodes of the whole formed after the battery modules in the battery module are electrically connected. The electrode wiring element is exposed in the insulating shell, which is convenient for external cables or copper bars.

[0038] In some embodiments, all the first positioning structures 101 are distributed on the same side of the insulating housing 102 , and each first positioning structure 101 is used to cooperate with a second positioning structure of the same battery module 200 .

[0039] The wiring device provided in this embodiment is only matched with one battery module 200, and the overall weight is lighter, which is convenient for users to carry or assemble the two into a whole in a cabinet.

[0040] In other embodiments, all the first positioning structures 101 may also be distributed on two opposite sides of the insulating shell 102, all the first positioning structures 101 located on one side of the insulating shell 102 are used to cooperate with the second positioning structure of a battery module 200, and all the first positioning structures 101 located on the other side of the insulating shell 102 are used to cooperate with the second positioning structure of another battery module 200.

[0041] The wiring device provided in this embodiment cooperates with the two battery modules 200, which can reduce the number of wiring devices and is beneficial to reducing costs.

[0042] In the scheme where the above-mentioned wiring device is respectively matched with the two battery modules 200 located on both sides thereof, two groups of electrical connectors 103 are fixed to the insulating shell, one group of electrical connectors 103 is used to electrically connect the battery modules of one battery module 200, and the other group of electrical connectors 103 is used to electrically connect the battery modules of another battery module 200. Accordingly, the insulating shell 102 is provided with two groups of electrode wiring elements respectively matched with the two battery modules 200. Of course, in the scheme where the above-mentioned wiring device 100 is respectively matched with the two battery modules 200 located on both sides thereof, the electrical connectors 103 of the wiring device 100 can also electrically connect all the battery modules of the two battery modules 200 (such as connecting all the battery modules of the two battery modules 200 in series in sequence), and the insulating shell 102 is provided with a group of electrode wiring elements for electrically connecting with the positive and negative electrodes of the whole formed by the electrical connection of the two battery modules 200.

[0043] In addition, in the above-mentioned scheme where the wiring device 100 is respectively matched with the two battery modules 200 located on both sides thereof, the first positioning structures 101 on both sides of the insulating housing 102 can be set to be symmetrically distributed. In this case, the structures of the two battery modules 200 can be set to be different, and identification marks are added to the battery module 200 and the insulating housing 102 of the wiring device 100 to distinguish them, so as to prevent the wiring device from being installed incorrectly. Of course, in the above-mentioned scheme where the wiring device 100 is respectively matched with the two battery modules 200 located on both sides thereof, the first positioning structures 101 on both sides of the insulating housing 102 can also be set to be asymmetrically distributed or to be different in structure. This embodiment does not limit this, and it is only necessary to ensure that the first positioning structures 101 on both sides of the insulating housing 102 are prevented from being installed incorrectly with the battery modules 200.

[0044] The electrical connector 103 is embedded in the insulating housing 102; the portion of the electrical connector 103 that is used for electrical connection with the battery module 200 is exposed. The electrical connector 103 can be configured as a copper busbar, an aluminum busbar, etc., which is not limited in this embodiment.

[0045] In one solution, the portion of the electrical connector 103 for electrical connection with the battery module is flush with the side of the insulating housing 102. In another solution, the portion of the electrical connector 103 for electrical connection with the battery module is located inside the insulating housing 102; a through hole is opened at a position on the side of the insulating housing 102 corresponding to the portion of the electrical connector 103 for electrical connection with the battery module, and the through hole is inserted into and matched with the electrode of the battery module.

[0046] The embodiment of the utility model also provides an energy storage device, including a battery unit 10, the battery unit 10 includes a battery module 200 and a wiring device 100 fixedly connected to the battery module 200, and the wiring device 100 is the wiring device 100 provided in the above embodiment. The battery module 200 includes a bracket and a plurality of battery modules mounted on the bracket; the second positioning structure of the battery module 200 is arranged on the above bracket.

[0047] In the above energy storage device, the battery unit 10 can be provided as one, which supplies power to the electrical device through the external cable 300 .

[0048] In the above energy storage device, a plurality of battery cells 10 may be provided, and each battery cell 10 is connected in series in sequence through the electrode wiring elements of its own wiring device 100 through copper busbars and other components, and then supplies power to the electrical equipment through an external cable 300.

[0049] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0050] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wiring device for a battery module, characterized in that: include: An insulating shell, wherein the insulating shell is provided with a first positioning structure for cooperating with a second positioning structure of the battery module; An electrical connector, which is fixed to the insulating housing and is used to electrically connect the battery modules in the battery module when the first positioning structure and the second positioning structure cooperate with each other; There are multiple first positioning structures in the insulating shell that cooperate with the same battery module and are distributed on the same side surface of the insulating shell; The first positioning structures matched with the same battery module are different, and / or the first positioning structures matched with the same battery module are asymmetrically distributed on the insulating shell.

2. The wiring device according to claim 1, characterized in that: All of the first positioning structures are distributed on the same side of the insulating shell, and each of the first positioning structures is used to cooperate with the second positioning structure of the same battery module.

3. The wiring device according to claim 1, characterized in that: All of the first positioning structures are distributed on two opposite sides of the insulating shell. All of the first positioning structures located on one side of the insulating shell are used to cooperate with the second positioning structure of one battery module, and all of the first positioning structures located on the other side of the insulating shell are used to cooperate with the second positioning structure of another battery module.

4. The wiring device according to claim 1, characterized in that: The first positioning structures matched with the same battery module include: The shapes of the first positioning structures matched with the same battery module are different, or the sizes of the first positioning structures matched with the same battery module are different.

5. The wiring device according to claim 1, characterized in that: The insulating shell is provided with an electrode wiring element, and the electrode wiring element is electrically connected to the battery module.

6. The wiring device according to claim 1, characterized in that: The electrical connector is embedded in the insulating shell; the portion of the electrical connector used for electrical connection with the battery module is exposed.

7. The wiring device according to claim 6, characterized in that: The portion of the electrical connector used for electrical connection with the battery module is flush with the side surface of the insulating shell.

8. The wiring device according to claim 6, characterized in that: The portion of the electrical connector used for electrical connection with the battery module is located inside the insulating shell; a through hole is opened at a position on the side of the insulating shell corresponding to the portion of the electrical connector used for electrical connection with the battery module.

9. An energy storage device, characterized in that: It comprises a battery unit, wherein the battery unit comprises a battery module and a wiring device fixedly connected to the battery module, and the wiring device is the wiring device according to any one of claims 1-8.

10. The energy storage device according to claim 9, characterized in that: There are a plurality of battery cells, and each of the battery cells is connected in series in sequence through electrode wiring elements of respective wiring devices.

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