Connector assembly and energy storage system

Abstract

The utility model provides a connector assembly and an energy storage system, and the connector assembly comprises an anode connector which is used for being electrically connected with an anode terminal of a cell group of the energy storage system; the cathode connector is used for being electrically connected with a cathode terminal of the battery cell group; one wiring end of the fuse is electrically connected with the positive electrode connector, and the other wiring end of the fuse is used for being electrically connected with the positive electrode wiring end of the battery cell group; the support panel is provided with a first installation position, a second installation position and a third installation position, the positive electrode connector is fixedly installed at the first installation position, the negative electrode connector is fixedly installed at the second installation position, and the fuse is fixedly installed at the third installation position. The connector assembly provided by the utility model solves the technical problem that the energy storage system connector assembly related structure in the related technology is complex.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage batteries, and in particular, to a connector assembly and an energy storage system. Background Art

[0002] At present, the electrical connectors and fuses in the energy storage PACK are respectively assembled through corresponding mounting parts. In the actual assembly process, the following deficiencies exist: First, the size of the energy storage PACK is limited, and the separate assembly of the electrical connectors and fuses will occupy more space, reducing the space utilization rate; Second, the separate assembly of the electrical connectors and fuses requires more parts, resulting in an increase in the cost of the energy storage PACK; Finally, the assembly process involved in the separate assembly of the electrical connectors and fuses is relatively cumbersome, affecting the assembly efficiency of the energy storage PACK.

[0003] It can be seen that there are technical problems with complex connector assembly-related structures in the energy storage systems in the related technologies. For this technical problem, no effective solution has been proposed yet. Summary of the Utility Model

[0004] The main purpose of the present utility model is to provide a connector assembly and an energy storage system to solve the technical problem of complex connector assembly-related structures in the energy storage systems in the related technologies.

[0005] To achieve the above object, according to one aspect of the present utility model, a connector assembly is provided, including: a positive connector for electrically connecting to the positive terminal of the battery cell group of the energy storage system; a negative connector for electrically connecting to the negative terminal of the battery cell group; a fuse, one terminal of the fuse is electrically connected to the positive connector, and the other terminal of the fuse is used for electrically connecting to the positive terminal of the battery cell group; a support panel provided with a first mounting position, a second mounting position, and a third mounting position, the positive connector is fixedly mounted on the first mounting position, the negative connector is fixedly mounted on the second mounting position, and the fuse is fixedly mounted on the third mounting position.

[0006] Further, the connector assembly further includes: a communication connector, the support panel is provided with a fourth mounting position, the communication connector is fixedly mounted on the fourth mounting position, and the communication connector is used for communicating with the battery management unit of the energy storage system.

[0007] Further, the connector assembly includes a support member made of an insulating material, the support member is mounted on the support panel, and the fuse is mounted on the support member and is spaced apart from the support panel.

[0008] Further, there are two support members, the two support members are spaced apart, and the two support members respectively support the two terminals of the fuse.

[0009] Further, the connector assembly includes an insulating and isolating component disposed between the fuse and the support panel.

[0010] Further, the insulating and isolating component is a resin plate disposed on the side of the support panel facing the fuse.

[0011] Further, the connector assembly includes a protective cover mounted on the support panel and covering the outside of the fuse.

[0012] Further, a first connection portion is provided on the support panel for connecting the support panel to the lid of the battery box of the energy storage system.

[0013] Further, there are a plurality of first connection portions arranged in sequence along an annular track. Among them, the positive connector, the negative connector, and the fuse are located within the area enclosed by the annular track; and / or, a convex portion is provided on the support panel, protruding away from the fuse, and the positive connector, the negative connector, and the fuse are disposed on the convex portion.

[0014] According to another aspect of the present invention, an energy storage system is provided, which includes: a battery box; a battery cell group disposed in the battery box, the battery cell group including one or more battery cells; and the above-mentioned connector assembly, the support panel of the connector assembly being detachably mounted on the battery box.

[0015] The connector assembly applying the technical solution of the present utility model includes: a positive connector for electrically connecting to the positive terminal of the battery cell group of the energy storage system; a negative connector for electrically connecting to the negative terminal of the battery cell group; a fuse, one terminal of the fuse is electrically connected to the positive connector, and the other terminal of the fuse is used for electrically connecting to the positive terminal of the battery cell group; a support panel, on which there are a first mounting position, a second mounting position, and a third mounting position. The positive connector is fixedly installed at the first mounting position, the negative connector is fixedly installed at the second mounting position, and the fuse is fixedly installed at the third mounting position. For the connector assembly with such a structural design, a dedicated support panel is designed, and the first mounting position, the second mounting position, and the third mounting position are designed on the support panel. The positive connector, the negative connector, and the fuse are sequentially installed at the three mounting positions, and the fuse is electrically connected to the positive connector. Through one connector assembly, the arrangement of the positive connector and the negative connector is realized, and the fuse is integrated. There is no need to set multiple mounting parts for assembly, which can effectively improve the space utilization rate and reduce the component cost. When assembling the energy storage system, only need to assemble the connector assembly into the battery box of the energy storage system and complete the wiring of the negative connector and the fuse, without separately assembling each connector and fuse, which can also reduce the assembly process, improve the assembly efficiency, and facilitate operations such as assembly and maintenance. The connector assembly with the above structural design adopted in this application can simplify the related structure of connector assembly, improve the space utilization rate, improve the assembly efficiency, and solve the technical problem of the complex related structure of the energy storage system connector assembly in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 It is a partial structural schematic diagram of the embodiment of the connector assembly of the present utility model (the protective cover is not included in the figure);

[0018] Figure 2 It is a structural schematic diagram of the embodiment of the connector assembly of the present utility model from the first perspective;

[0019] Figure 3 It is a structural schematic diagram of the embodiment of the connector assembly of the present utility model from the second perspective.

[0020] Among them, the above-mentioned drawings include the following reference numerals:

[0021] 1. Positive electrode connector; 2. Negative electrode connector; 3. Fuse; 4. Support panel; 41. First connection part; 42. Second connection part; 43. Protrusion part; 5. Communication connector; 6. Support member; 7. Insulating isolation component; 8. Protective cover; 91. First copper bar; 92. Second copper bar. Detailed implementation mode

[0022] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine the embodiments to detail the present invention.

[0023] Please refer to Figures 1 to 3 , to achieve the above object, the present invention provides a connector assembly, which includes: a positive electrode connector 1, the positive electrode connector 1 is used for electrically connecting with the positive electrode terminal of the battery cell group of the energy storage system; a negative electrode connector 2, the negative electrode connector 2 is used for electrically connecting with the negative electrode terminal of the battery cell group; a fuse 3, one terminal of the fuse 3 is electrically connected with the positive electrode connector 1, and the other terminal of the fuse 3 is used for electrically connecting with the positive electrode terminal of the battery cell group; a support panel 4, the support panel 4 is provided with a first installation position, a second installation position and a third installation position, the positive electrode connector 1 is fixedly installed at the first installation position, the negative electrode connector 2 is fixedly installed at the second installation position, and the fuse 3 is fixedly installed at the third installation position.

[0024] For the connector assembly with this structural design, a dedicated support panel 4 is designed, and a first installation position, a second installation position and a third installation position are designed on the support panel 4. The positive electrode connector 1, the negative electrode connector 2 and the fuse 3 are sequentially installed at the three installation positions, and the fuse 3 is electrically connected with the positive electrode connector 1. Through a connector assembly, the arrangement of the positive electrode connector 1 and the negative electrode connector 2 is realized, and the fuse 3 is integrated. There is no need to set multiple installation parts for assembly, which can effectively improve the space utilization rate and reduce the component cost. When assembling the energy storage system, only need to assemble the connector assembly into the battery box of the energy storage system and complete the wiring of the negative electrode connector 2 and the fuse 3, without separately assembling each connector and fuse, which can also reduce the assembly process, improve the assembly efficiency, and facilitate operations such as assembly and maintenance. The connector assembly with the above structural design in the present application can simplify the related structure of connector assembly, improve the space utilization rate, improve the assembly efficiency, and solve the technical problem of the complex related structure of the energy storage system connector assembly in the related art.

[0025] In actual implementation, the battery cell group of the energy storage system may include one or more battery cells. When there are multiple battery cells, the multiple battery cells can be connected in series and / or in parallel according to requirements, and a positive terminal and a negative terminal are led out. The shape and material of the support panel 4 can also be flexibly selected according to actual requirements. For example, in an optional embodiment, the support panel 4 is processed into a sheet metal that matches the shape of the adjacent structure inside the battery box, so as to ensure that there is no interference between it and the adjacent structure.

[0026] When the connector assembly is installed in the energy storage system, the fuse 3 is connected in series in the circuit between the positive connector 1 and the positive terminal of the battery cell group. In this embodiment, the positive terminal of the battery cell group is connected to one terminal of the fuse 3 through the first copper bar 91, the other terminal of the fuse 3 is connected to the positive connector 1 through the second copper bar 92, and the negative terminal of the battery cell group is connected to the negative connector 2 through the third copper bar.

[0027] In use, the positive connector 1 is used to cooperate with an external positive connection head, and the negative connector 2 is used to cooperate with an external negative connection head, so as to realize the discharge or charging of the energy storage system.

[0028] Specifically, the connector assembly further includes: a communication connector 5. There is a fourth mounting position on the support panel 4, and the communication connector 5 is fixedly mounted on the fourth mounting position. The communication connector 5 is used for communication connection with the battery management unit of the energy storage system.

[0029] The communication connector 5 is used to cooperate with an external communication connector, so as to realize communication between the energy storage system and an external system, and further facilitate understanding and control of the working conditions of the energy storage system.

[0030] In an optional embodiment, the connector assembly includes a support member 6. The support member 6 is made of an insulating material. The support member 6 is mounted on the support panel 4, and the fuse 3 is mounted on the support member 6 and is spaced from the support panel 4.

[0031] The support member 6 can provide an insulating mounting position for the fuse 3, so as to prevent short-circuit contact between the fuse 3 and the support panel 4 and ensure the normal operation of the fuse 3.

[0032] Preferably, there are two support members 6. The two support members 6 are spaced apart, and the two support members 6 respectively support the two terminals of the fuse 3.

[0033] In this embodiment, by providing two support members 6 to support the two connection terminals of the fuse 3 respectively, on the basis of ensuring the support stability of the fuse 3, the insulation reliability between the two connection terminals of the fuse 3 and the support panel 4 can be better ensured, avoiding the situation that one end of the fuse 3 contacts the support panel 4 due to the shaking of the support member 6, thus affecting the normal operation of the fuse 3. In a specific embodiment, the support member 6 is in a columnar structure, so as to provide stable support for the fuse 3 and reduce the interference with the fuse 3. Of course, the support member 6 can also adopt other shape structures, as long as it can support the fuse 3 to provide a reliable insulation installation position for the fuse 3.

[0034] In addition, in one embodiment, the connector assembly includes an insulating isolation member 7, and the insulating isolation member 7 is disposed between the fuse 3 and the support panel 4.

[0035] In this embodiment, by providing the insulating isolation member 7 between the fuse 3 and the support panel 4, the creepage distance between the two can be increased, so that the connector assembly has better electrical safety and operating stability.

[0036] Preferably, the insulating isolation member 7 is a resin plate, and the resin plate is disposed on the side of the support panel 4 facing the fuse 3.

[0037] Preferably, the resin plate is located between the support member 6 and the support panel 4. That is to say, in this embodiment, a layer of resin plate is first laid on the support panel 4, and then the support member 6 is installed on the resin plate, which can further improve the insulation effect of the support member 6 and ensure the operating stability of the fuse 3.

[0038] Specifically, the connector assembly includes a protective cover 8, and the protective cover 8 is installed on the support panel 4, and the protective cover 8 covers the outside of the fuse 3.

[0039] In this embodiment, the connector assembly is also designed with a protective cover 8, and the protective cover 8 covers the outside of the fuse 3, so as to play a mechanical protection and electrical protection role, so that the operation of the fuse 3 will not be interfered by the outside, thus ensuring its operation reliability. In actual implementation, the specific shape of the protective cover 8 can be flexibly set according to actual needs (such as the avoidance requirements for adjacent components, the requirements for the surrounding space dimensions, etc.).

[0040] The support panel 4 is provided with a first connection portion 41, and the first connection portion 41 is used to connect the support panel 4 to the cover of the battery box of the energy storage system.

[0041] That is to say, after the support panel 4 is installed on the box body of the battery box of the energy storage system and the electrical connection is completed, the cover of the battery box can be assembled on the support panel 4, and the support panel 4 and the cover are relatively fixed through the first connection part 41. There is a window corresponding to the support panel 4 on the cover, so that the positive electrode connector 1, the negative electrode connector 2 and the fuse 3 can be exposed outside the battery box to facilitate the insertion of an external plug. By separately arranging the battery box and the support panel 4, installing and supporting the connector and the fuse 3 through the separate support panel 4, and then connecting the support panel 4 with the cover of the battery box, the assembly process is effectively simplified, which is beneficial to improving the assembly efficiency and facilitating the subsequent maintenance of the energy storage system.

[0042] Specifically, there are multiple first connection parts 41, and the multiple first connection parts 41 are arranged in sequence along an annular track. Among them, the positive electrode connector 1, the negative electrode connector 2 and the fuse 3 are located in the area surrounded by the annular track; and / or, a convex part 43 is provided on the support panel 4, and the convex part 43 protrudes towards the side away from the fuse 3, and the positive electrode connector 1, the negative electrode connector 2 and the fuse 3 are arranged on the convex part 43.

[0043] As a preferred embodiment, the first connection parts 41 are provided in multiple and arranged in sequence along an annular track, and the positive electrode connector 1, the negative electrode connector 2 and the fuse 3 are arranged in the area surrounded by the annular track. In this way, when the support panel 4 and the cover are relatively fixed through the multiple first connection parts 41, the parts of the cover around the positive electrode connector 1, the negative electrode connector 2 and the fuse 3 can all be reliably fixed, thereby improving the reliability and sealing performance of the connection between the two. By providing the convex part 43 on the support panel 4, it can cooperate with the window on the cover, so as to better extend out of the cover and facilitate the insertion and cooperation of the external plug and the connector.

[0044] In an alternative embodiment, both the first installation position and the second installation position are through holes, the positive electrode connector 1 and the negative electrode connector 2 are both inserted through the through holes, and multiple second connection parts 42 are further provided on the support panel 4. The positive electrode connector 1 and the negative electrode connector 2 are fixed to the support panel 4 through the corresponding second connection parts 42. In actual implementation, the specific forms of the first connection part 41 and the second connection part 42 can be various as long as the connection function can be realized, such as snap connection; for example, a structure of through hole plus screw can be adopted; for example, in order to improve the connection strength, a columnar nut can be provided on the support panel 4, and then the screw is used to cooperate with the columnar nut to realize the connection.

[0045] According to another aspect of the present utility model, an energy storage system is provided. The energy storage system includes: a battery box; a battery cell group disposed within the battery box, the battery cell group including one or more battery cells; the above-mentioned connector assembly, and a support panel 4 of the connector assembly is detachably mounted on the battery box. The battery box includes a box body and a box cover, and the box cover has a window corresponding to the support panel 4, so that the positive electrode connector 1, the negative electrode connector 2, and the fuse 3 can be exposed outside the battery box to facilitate the insertion of an external plug. Preferably, the shape and size of the window match the shape and size of the protruding portion 43 on the support panel 4.

[0046] The energy storage system further includes a battery management unit, which is connected to each battery cell to manage each battery cell. The battery management unit is the BMU (English full name: Battery Management Unit), which is connected to each battery cell and sensor, so as to perform management operations such as real-time monitoring, control, and protection on each battery cell, ensuring the efficient, safe, and reliable operation of the energy storage system. Specifically, its functions can include but are not limited to: battery cell voltage monitoring, battery cell current monitoring, battery cell internal resistance monitoring, battery cell temperature monitoring, voltage equalization management, and so on.

[0047] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

[0048] The connector assembly of the present utility model includes: a positive connector 1, which is used for electrically connecting to the positive terminal of the battery cell group of the energy storage system; a negative connector 2, which is used for electrically connecting to the negative terminal of the battery cell group; a fuse 3, one terminal of the fuse 3 is electrically connected to the positive connector 1, and the other terminal of the fuse 3 is used for electrically connecting to the positive terminal of the battery cell group; a support panel 4, on which a first mounting position, a second mounting position and a third mounting position are provided. The positive connector 1 is fixedly mounted on the first mounting position, the negative connector 2 is fixedly mounted on the second mounting position, and the fuse 3 is fixedly mounted on the third mounting position. For the connector assembly with this structural design, a dedicated support panel 4 is designed, and a first mounting position, a second mounting position and a third mounting position are designed on the support panel 4. The positive connector 1, the negative connector 2 and the fuse 3 are sequentially and correspondingly mounted on the three mounting positions, and the fuse 3 is electrically connected to the positive connector 1. Through a connector assembly, the arrangement of the positive connector 1 and the negative connector 2 is realized, and the fuse 3 is integrated. There is no need to set multiple mounting parts for assembly, which can effectively improve the space utilization rate and reduce the component cost. When assembling the energy storage system, only need to assemble the connector assembly into the battery box of the energy storage system and complete the wiring of the negative connector 2 and the fuse 3. There is no need to assemble each connector and fuse separately, which can also reduce the assembly process, improve the assembly efficiency and facilitate operations such as assembly and maintenance. The connector assembly with the above structural design adopted in this application can simplify the structure related to connector assembly, improve the space utilization rate, improve the assembly efficiency, and solve the technical problem of the complex structure related to the connector assembly of the energy storage system in the related art.

[0049] For the sake of convenience in description, spatial relative terms, such as "above", "over", "on the upper surface", "above", etc., may be used herein to describe the spatial position relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to cover different orientations in use or operation in addition to the orientation shown in the figures of the device. For example, if the device in the figure is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "beneath" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or at other orientations), and the corresponding explanations will be made to the spatial relative descriptions used herein.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0052] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A connector assembly, characterized in that: include: A positive electrode connector (1), the positive electrode connector (1) being used to be electrically connected to a positive electrode terminal of a battery cell group of an energy storage system; A negative electrode connector (2), the negative electrode connector (2) being used for being electrically connected to the negative electrode terminal of the battery cell group; A fuse (3), one terminal of the fuse (3) being electrically connected to the positive electrode connector (1), and the other terminal of the fuse (3) being electrically connected to the positive electrode terminal of the battery cell group; A support panel (4), wherein a first mounting position, a second mounting position and a third mounting position are provided on the support panel (4), the positive connector (1) is fixedly mounted at the first mounting position, the negative connector (2) is fixedly mounted at the second mounting position, and the fuse (3) is fixedly mounted at the third mounting position.

2. The connector assembly according to claim 1, characterized in that: The connector assembly further comprises: A communication connector (5), wherein a fourth mounting position is provided on the support panel (4), the communication connector (5) is fixedly mounted on the fourth mounting position, and the communication connector (5) is used for communication connection with the battery management unit of the energy storage system.

3. The connector assembly according to claim 1, characterized in that: The connector assembly comprises a support member (6), the support member (6) is made of insulating material, the support member (6) is mounted on the support panel (4), and the fuse (3) is mounted on the support member (6) and is spaced apart from the support panel (4).

4. The connector assembly according to claim 3, characterized in that: There are two support members (6), the two support members (6) are arranged at an interval, and the two support members (6) support the two connection terminals of the fuse (3) in a one-to-one correspondence.

5. The connector assembly according to claim 1, characterized in that: The connector assembly comprises an insulating isolation component (7), and the insulating isolation component (7) is arranged between the fuse (3) and the supporting panel (4).

6. The connector assembly according to claim 5, characterized in that: The insulating isolation component (7) is a resin plate, and the resin plate is arranged on a side of the supporting panel (4) facing the fuse (3).

7. The connector assembly according to claim 1, characterized in that: The connector assembly comprises a protective cover (8), wherein the protective cover (8) is mounted on the supporting panel (4), and the protective cover (8) is arranged on the outside of the fuse (3).

8. The connector assembly according to claim 1, wherein: The support panel (4) is provided with a first connection portion (41), and the first connection portion (41) is used to connect the support panel (4) to a box cover of a battery box of the energy storage system.

9. The connector assembly according to claim 8, characterized in that: There are a plurality of the first connecting parts (41), and the plurality of the first connecting parts (41) are arranged in sequence along a circular track, wherein the positive electrode connector (1), the negative electrode connector (2) and the fuse (3) are located within a region enclosed by the circular track; and / or, The support panel (4) is provided with a protrusion (43), the protrusion (43) protruding toward a side away from the fuse (3), and the positive connector (1), the negative connector (2) and the fuse (3) are arranged on the protrusion (43).

10. An energy storage system, characterized in that: The energy storage system comprises: Battery box; A battery cell group, the battery cell group is arranged in the battery box, and the battery cell group includes one or more battery cells; The connector assembly according to any one of claims 1 to 9, wherein the support panel (4) of the connector assembly is detachably mounted on the battery box.

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