Copper bar switching device and energy storage battery pack

Abstract

The utility model discloses a copper bar switching device and an energy storage battery pack. The copper bar switching device comprises a base and a clamping cover, the clamping cover is detachably fixed on the base; a base buckle is arranged on the base, and in the energy storage battery pack, the base buckle is fixed on a battery module in the energy storage battery pack. And a first copper bar connected with a battery module total outlet pole and a second copper bar connected with an energy storage battery pack panel connector are detachably connected with each other and are fixed between the base and the clamping cover. According to the copper bar switching device disclosed by the utility model, the panel of the energy storage battery pack and the copper bar connected with the panel can be maintained under the condition that the upper cover of the energy storage battery pack is not disassembled.

Description

Technical Field

[0001] This utility model relates to the field of energy storage battery pack manufacturing, specifically to a copper busbar adapter and an energy storage battery pack. Background Technology

[0002] In traditional energy storage battery packs (PACKs), due to the limited movement margin of the copper busbars between the battery module's main output terminals and the connectors on the panel, the bolts connecting the copper busbars to the connectors are prone to loosening during installation and use. This can cause the temperature at the connection point between the connector and the copper busbars to rise, and prolonged localized high temperatures can lead to a decrease in electrical transmission efficiency. Therefore, it is necessary to regularly maintain the bolts between the copper busbars and the connectors. A common maintenance method involves pulling the PACK out of the container or removing it from the rack, then removing the top cover, taking out the panel and the copper busbars connected to it, and tightening the bolts between the copper busbars and the connectors.

[0003] The existing technology typically addresses the problem of copper busbars becoming loose as follows:

[0004] Installing the connectors on the lower housing and using copper busbars to connect the module's main output to the connectors can avoid affecting the connection between the copper busbars and connectors during panel installation or maintenance, reducing the probability of the copper busbars becoming loose. However, during later maintenance, it is still necessary to pull the PACK out of the container or remove it from the rack, remove the top cover, and loosen the end of the copper busbar that is fixed to the battery module's main output before the panel and the copper busbar connected to it can be removed and maintained, making PACK maintenance inconvenient.

[0005] In addition, due to the limitations of the overall structure of the copper busbar, the copper busbar and the panel cannot be directly removed for maintenance. During later maintenance, the PACK needs to be pulled out of the container or removed from the rack, and the top cover needs to be removed before subsequent maintenance can be carried out, which is very inconvenient in practice. Utility Model Content

[0006] The purpose of this utility model is to provide a copper busbar adapter and an energy storage battery pack, which can tighten the fixing bolts between the copper busbar and the connector on the panel without opening the top cover, thus facilitating maintenance.

[0007] According to a first aspect of the present invention, a copper busbar adapter is provided, comprising: a base and a cover; the side of the base is provided with a base buckle and a plurality of base protrusions; the upper surface of the base is provided with a copper busbar connection hole; the bottom of the base is provided with a base anti-rotation structure; the cover is provided with a plurality of cover protrusions, and the cover protrusions are provided with protrusion slots; the base and the cover are fixed to each other by the engagement of the base protrusions and the protrusion slots.

[0008] Furthermore, the base anti-rotation structure includes two limiting plates, and the limiting plates are provided with reinforcing ribs at both ends.

[0009] Furthermore, the card cover has an edge protrusion; when the card cover is fixed on the base, the lower end of the edge protrusion abuts against the upper surface of the base.

[0010] According to a second aspect of the present invention, an energy storage battery pack is provided, comprising the copper busbar adapter as described above, and further comprising a first copper busbar, a second copper busbar, a battery module, a panel, and a connector; the connector is fixed on the panel; the copper busbar adapter is fixed between the battery module and the panel; one end of the first copper busbar is fixed on the main output terminal of the battery module, and one end of the second copper busbar is detachably fixed on the connector; the other ends of the first copper busbar and the second copper busbar are electrically connected and detachably fixed on the copper busbar adapter.

[0011] Furthermore, the battery module includes an end plate, which is disposed on the surface of the battery module. One end of the end plate is provided with the total output electrode, and the copper busbar adapter is fixed on the surface of the end plate adjacent to the total output electrode.

[0012] Furthermore, the end plate is provided with multiple end plate grooves, and the wall of the end plate groove is provided with multiple end plate slots; the base of the copper busbar adapter is fixed in the end plate slot.

[0013] Furthermore, when the base buckle is fixed in the end plate slot, the base anti-rotation structure is embedded in the end plate groove between the buckle structures.

[0014] Furthermore, the energy storage battery pack also includes a top cover and a module carrier; the top cover is fixed on the module carrier; one end of the top cover has a top cover opening, and the panel is detachably fixed at the top cover opening.

[0015] Furthermore, the battery module is fixed between the upper cover and the module carrier, with the upper surface of the cover facing the panel.

[0016] Furthermore, the energy storage battery pack also includes a cover plate; the cover plate is detachably fixed to the opening of the upper cover, and the panel is detachably fixed to the cover plate; the panel is located between the cover plate and the upper cover.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The copper busbar adapter provided by this utility model can be applied to energy storage battery packs. On the one hand, it can move the fixed position of the other end of the copper busbar that is fixed to the connector. Specifically, it can move the copper busbar from the end with a smaller area to the other end with a larger area, increasing the operable space during the fixing process of the copper busbar and the connector. On the other hand, it can directly remove the end of the copper busbar connected to the end plate without opening the top cover of the energy storage battery pack, thereby taking out the panel and maintaining the panel. During the maintenance process, there is no need to pull the energy storage battery pack out of the container or take it out of the rack, thus meeting the need for convenient maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the copper busbar adapter structure in a specific embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the base structure in a specific embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the anti-rotation structure of the base in a specific embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the card cover structure in a specific embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of the structure of a base with a fixed copper busbar mounted on an end plate in a specific embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of a copper busbar adapter device with a fixed copper busbar installed on an end plate in a specific embodiment of the present invention.

[0025] Figure 7 This is a cross-sectional structural diagram of a copper busbar adapter device with a fixed copper busbar installed on an end plate in a specific embodiment of the present invention.

[0026] Figure 8 This is a schematic diagram of the copper busbar adapter installed on the energy storage battery pack in a specific embodiment of the present invention. Detailed Implementation

[0027] The copper busbar adapter and energy storage battery pack of this utility model will be described in more detail below with reference to the schematic diagrams, which illustrate preferred embodiments of this utility model. It should be understood that those skilled in the art can modify the utility model described herein while still achieving the advantageous effects of this utility model. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit this utility model.

[0028] For clarity, not all features of the actual embodiments are described. In the following description, well-known functions and structures are not detailed in detail, as they would confuse the present invention with unnecessary detail. It should be understood that in the development of any actual embodiment, numerous implementation details must be made to achieve the developer's specific goals, such as changes from one embodiment to another according to limitations related to the system or business. Furthermore, it should be understood that such development work may be complex and time-consuming, but is merely routine work for those skilled in the art.

[0029] The present invention will be described more specifically by way of example in the following paragraphs with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0030] According to a first aspect of this utility model, a copper busbar adapter is provided, such as... Figures 1-4 As shown, the copper busbar adapter includes a base 1 and a cover 2.

[0031] Specifically, the base 1 has a base buckle 11 and a base protrusion 12 on opposite sides. The upper surface of the base 1 has copper busbar connection holes, which are nut holes 14, allowing the copper busbars to be connected and fixed using bolts. The bottom of the base 1 has a base anti-rotation structure 13, which includes two limiting plates with reinforcing ribs at both ends. When the base 1 is installed in the PACK, the base anti-rotation structure 13 can engage with the end plate of the battery module, thereby preventing the base 1 from rotating during subsequent installation of copper busbars.

[0032] In this embodiment, the card cover 2 is provided with card cover protrusion edges 21 at the four corners. The card cover protrusion edges 21 are provided with protrusion grooves 211 and protrusion protrusions 212. The protrusions 212 are located above the protrusion grooves 211.

[0033] The relative distance between the protruding slots 211 and the relative distance between the base protrusions 12 are the same and the dimensions are matched. The protruding slots 211 and the base protrusions 12 engage to fix the base 1 and the cover 2.

[0034] In a specific example, when the base 1 and the cover 2 are fixed, the protruding edge 212 abuts against the upper surface of the base 1, i.e., in direct contact, and can share the supporting role of the cover's protruding edge 21 on the cover, thus preventing the cover's protruding edge slot 211 from cracking. Furthermore, the protruding edge 212 allows a certain distance to be maintained between the cover 2 and the base, providing necessary installation space for the copper busbar between the base 1 and the cover 2.

[0035] Another aspect of this utility model provides an energy storage battery pack, such as... Figures 5-8 As shown, the energy storage battery pack includes the copper busbar adapter as described above, as well as a battery module (not shown), a first copper busbar 41, a second copper busbar 42, a fixing bolt 5, a positive terminal connector 6, a top cover 7, a panel 8, and a module carrier 9.

[0036] Specifically, the positive electrode connector 6 is fixed to the panel 8; the base 1 and the top cover 2 are fixed between the battery module and the panel 8. One end of the first copper busbar 41 is fixed to the main output terminal 10 of the battery module, and the second copper busbar 42 is fixed to the positive electrode connector 6 by bolts; the first copper busbar 41 and the second copper busbar 42 are electrically connected, that is, they are attached to each other, and are fixed between the base 1 and the cover 2 of the copper busbar adapter by fixing bolts 5.

[0037] In addition, the battery module includes an end plate 3, and the total output electrode 10 of the battery module is located at one end of the end plate 3. The total output electrode 10 is electrically connected to the first copper busbar to realize the power connection between the battery module and the positive terminal connector.

[0038] Specifically, the end plate 3 is provided with a plurality of end plate grooves 31, and the groove walls of the end plate grooves 31 are provided with end plate slots 32. The base buckle 11 of the base 1 is fixed to the end plate slot 32, and the base anti-rotation structure 13 is fixed in the groove of the end plate groove 31 between the base buckles 11. The base anti-rotation structure 13 can prevent the base buckle 11 from being damaged when the fixing bolts 5 are tightened onto the first copper busbar 41 and the second copper busbar 42; on the other hand, the base anti-rotation structure 13 can play a guiding role, making it convenient for the base 1 to be installed onto the end plate 3.

[0039] In one specific example, the top cover 7 is fixed to the module carrier 9; one end of the top cover 7 has an opening, and the panel 8 is detachably fixed to the opening. The battery module is fixed between the top cover 7 and the module carrier 9, and the upper surface of the cover 2 faces the panel 8.

[0040] In one specific example, the energy storage battery pack further includes a cover plate (not shown); the cover plate is detachably fixed to the opening of the upper cover, and the panel 8 is detachably fixed to the cover plate; the panel 8 is located between the cover plate and the upper cover 7.

[0041] The copper busbar adapter provided by this utility model is installed in an energy storage battery pack in the following way:

[0042] First, fix the base 1 to the end plate 3. Fix one end of the first copper busbar 41 to the main output terminal 10 of the battery module, and align the other end with the nut hole 14 on the base 1 for pre-fixation (pre-fixation refers to an easy-to-disassemble fixing method, such as using tape). Then, install the top cover 7 onto the housing 9. Next, fix one end of the second copper busbar 42 to the positive terminal connector 6 located on the panel 8 with bolts. Place the panel 8 in a suitable position, and align the other end of the second copper busbar 42 with the upper surface of one end of the copper busbar 41 pre-fixed to the base 1 to achieve conductive connection. Use fixing bolts 5 to fix the first copper busbar 41 and the second copper busbar 42 together to the base 1. Finally, fix the clip 2 to the base. In this way, the power connection between the main output terminal 10 and the positive terminal connector 6 can be achieved. Finally, fix the panel 8 to the top cover 7, thus completing the assembly of the copper busbar adapter in the energy storage battery pack.

[0043] The copper busbar adapter provided by this utility model is used for the later maintenance of the panel of the energy storage battery pack as follows: First, remove the panel 8 from the top cover 7, then remove the clip cover 2 in the copper busbar adapter, loosen the fixing bolts 5 on the base 1 to separate the first copper busbar 41 and the second copper busbar 42, then take out the panel 8 and the second copper busbar 42 connected to it, and perform maintenance on the panel 8, such as tightening the bolts between the positive terminal connector 6 on the panel 8 and the second copper busbar 42. After the maintenance is completed, reinstall the second copper busbar 42 and the panel 8 into the energy storage battery pack.

[0044] In summary, the copper busbar adapter provided by this utility model can be applied to energy storage battery packs. On the one hand, it can move the fixed position of the other end of the copper busbar that is fixed to the connector at one end. Specifically, it can move the copper busbar from the end with a smaller area to the other end with a larger area, increasing the operable space during the fixing process of the copper busbar and the connector. On the other hand, it can directly remove the end of the copper busbar connected to the end plate without opening the top cover of the energy storage battery pack, thereby taking out the panel and maintaining the panel. During the maintenance process, there is no need to pull the energy storage battery pack out of the container or take it out of the rack, thus meeting the need for convenient maintenance.

[0045] The above are merely preferred embodiments of this utility model and do not constitute any limitation on this utility model. Any equivalent substitutions or modifications made by those skilled in the art to the technical solutions and contents disclosed in this utility model without departing from the scope of the technical solutions of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A copper bar transfer device, characterized by, include: The base and the cover; the side of the base is provided with a base buckle and multiple base protrusions; the upper surface of the base is provided with copper busbar connection holes; the bottom of the base is provided with a base anti-rotation structure; the cover is provided with multiple cover protrusions, and the cover protrusions are provided with protrusion slots; the base and the cover are fixed to each other by the engagement of the base protrusions and the protrusion slots.

2. The copper bar transfer device of claim 1, wherein, The base anti-rotation structure includes two limiting plates, and the limiting plates are provided with reinforcing ribs at both ends.

3. The copper bar transfer device of claim 1, wherein, The cover has an edge protrusion; when the cover is fixed to the base, the lower end of the edge protrusion abuts against the upper surface of the base.

4. An energy storage battery pack, characterized by, The device includes the copper busbar adapter as described in any one of claims 1 to 3, and further includes a first copper busbar, a second copper busbar, a battery module, a panel, and a connector; the connector is fixed on the panel; the copper busbar adapter is fixed between the battery module and the panel; one end of the first copper busbar is fixed on the main output terminal of the battery module, and one end of the second copper busbar is detachably fixed on the connector; the other ends of the first copper busbar and the second copper busbar are electrically connected and detachably fixed on the copper busbar adapter.

5. The energy storage battery pack of claim 4, wherein, The battery module includes an end plate disposed on the surface of the battery module. One end of the end plate is provided with the total output electrode, and the copper busbar adapter is fixed on the surface of the end plate adjacent to the total output electrode.

6. The energy storage battery pack of claim 5, wherein, The end plate is provided with multiple end plate grooves, and the wall of the end plate groove is provided with an end plate slot; the base of the copper busbar adapter is fixed in the end plate slot.

7. The energy storage battery pack of claim 6, wherein, When the base buckle is fixed to the end plate slot, the base anti-rotation structure is embedded in the end plate groove between the buckle structures.

8. The energy storage battery pack of claim 4, wherein, The energy storage battery pack also includes a top cover and a module carrier; the top cover is fixed on the module carrier; one end of the top cover has a top cover opening, and the panel is detachably fixed at the top cover opening.

9. The energy storage battery pack of claim 8, wherein, The battery module is fixed between the top cover and the module carrier, with the upper surface of the cover facing the panel.

10. The energy storage battery pack of claim 8, wherein, The energy storage battery pack also includes a cover plate; the cover plate is detachably fixed to the opening of the upper cover, and the panel is detachably fixed to the cover plate; the panel is located between the cover plate and the upper cover.

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