Adapter base for battery module and battery pack

Abstract

The utility model provides an adapter base for a battery module and a battery pack, and the adapter base for the battery module comprises a base body which is provided with a first mounting area and a second mounting area which are opposite to each other in a first direction; the first external connection piece is arranged in the first installation area, and the two ends of the first external connection piece are connected with the first confluence piece and the first bridging piece respectively; the second external connection piece is arranged in the second installation area, the two ends of the second external connection piece are connected with the second confluence piece and the second bridging piece respectively, and the external connection piece, the confluence piece and the bridging piece are in a flat shape. According to the application, the external connecting piece, the confluence piece and the bridging piece are flat; on one hand, the flat structure can reduce the sizes of the external connecting piece, the confluence piece and the bridging piece in respective thickness directions; and on the other hand, the contact between the external connection piece and the confluence piece and the contact between the external connection piece and the bridging piece are surface contact, so that heating caused by overlarge contact resistance is avoided.

Description

Technical Field

[0001] The present application mainly relates to the field of energy storage, and in particular to an adapter base and a battery pack for a battery module. Background Art

[0002] With the rapid development of the energy storage industry, electrochemical energy storage, as a representative of new energy storage, has ushered in opportunities for rapid development. Energy storage battery packs require a large number of positive and negative output connectors. Common connectors include docking quick-plug connectors and terminal lock junction boxes. Docking connectors will emit a lot of heat during use, and the heat will be transferred to the nearest battery pack, which will cause uneven temperature differences in the battery pack and affect the battery life. Docking connectors also have the disadvantage of high cost. The terminal lock junction box has the disadvantages of large size and high cost. Utility Model Content

[0003] The technical problem to be solved by the present application is to provide a battery module adapter base and a battery pack, wherein the battery module adapter base has the advantages of small size and low heat generation.

[0004] In order to solve the above technical problems, the present application provides an adapter base for a battery module, including: a base body, having a first installation area and a second installation area opposite to each other in a first direction; a first external component, a first busbar and a first jumper, wherein the first external component is arranged in the first installation area, and its two ends are respectively connected to the first busbar and the first jumper; and a second external component, a second busbar and a second jumper, wherein the second external component is arranged in the second installation area, and its two ends are respectively connected to the second busbar and the second jumper, wherein the external component, the busbar and the jumper are flat structures.

[0005] In one embodiment of the present application, a first top cover, a second top cover, a third top cover and a fourth top cover are also included. The first top cover and the second top cover are arranged in the first installation area, and the third top cover and the fourth top cover are arranged in the second installation area.

[0006] In an embodiment of the present application, two ends of the first external connection member are bolted to the first current collector and the first jumper, respectively.

[0007] In one embodiment of the present application, the first installation area is provided with a first positioning column, and the first external component has a first positioning hole, wherein the first positioning column is inserted into the first positioning hole.

[0008] In one embodiment of the present application, the second external component includes a first section external component and a second section external component, wherein the main bodies of the first section external component and the second section external component both extend along the second direction, and the first section external component and the main body are adjacently arranged in the first direction and separated by a preset distance.

[0009] In one embodiment of the present application, the base body has an insulating plate, and the insulating plate is arranged in the second installation area and is located between the first section of the external connection component and the main body in the first direction.

[0010] In one embodiment of the present application, a safety unit is further included, and two ends of the safety unit are respectively connected to the first section external connection component and the second section external connection component.

[0011] In one embodiment of the present application, the second installation area is provided with a second positioning column, and the second external component has a second positioning hole, wherein the second positioning column is inserted into the second positioning hole.

[0012] In an embodiment of the present application, two ends of the second external connection member are bolted to the second current collector and the second jumper, respectively.

[0013] The present application also proposes a battery pack, comprising: a battery cell having a first electrode and a second electrode; and an adapter base for a battery module as described above, wherein the first electrode and the second electrode are respectively connected to a first busbar and a second busbar.

[0014] The external connector, the current collector and the jumper of the present application are flat structures. On the one hand, the flat structure can reduce the dimensions of the external connector, the current collector and the jumper in the thickness direction, which helps to reduce the volume of the adapter base; on the other hand, the flat structure can make the contact between the external connector and the current collector, and between the external connector and the jumper surface contact, which is conducive to reducing the contact resistance, thereby avoiding heating caused by excessive contact resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the present application. They are included and constitute a part of the present application. The accompanying drawings illustrate embodiments of the present application and together with the present specification serve to explain the principles of the present application. In the accompanying drawings:

[0016] Figure 1 It is a three-dimensional schematic diagram of a battery module adapter base in one embodiment of the present application;

[0017] Figure 2 is a schematic top view of a base body in an embodiment of the present application;

[0018] Figure 3It is a three-dimensional schematic diagram of a battery module adapter base in one embodiment of the present application;

[0019] Figure 4 yes Figure 3 A top view of the adapter base for the middle battery module;

[0020] Figure 5 It is a three-dimensional schematic diagram of a battery module adapter base in one embodiment of the present application.

[0021] Reference numerals

[0022] Base body 110 First end 121 Second jumper 190

[0023] First installation area 111 Second end 122 Safety unit 210

[0024] Second installation area 112 First busbar 130 Bolt holes 221, 222

[0025] First side wall 113 First bridging member 140 Second positioning column 230

[0026] First opening 114 Bolts 151, 152, 153, 154 First top cover 241

[0027] Second side wall 115 First positioning column 160 Second top cover 242

[0028] Second opening 116 Second external connection member 170 Third top cover 243

[0029] Bolt holes 117, 118 First section external connection piece 171 Fourth top cover 244

[0030] Insulation plate 119 Second section external connection piece 172

[0031] First external connection member 120 Second busbar 180 DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0033] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0034] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0035] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0036] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0037] In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and cannot be understood as limiting the scope of protection of this application. In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article. In addition, it is required to understand this application not only by the actual terms used, but also by the meaning implied by each term.

[0038] Next, the battery module adapter base of the present application is described through embodiments.

[0039] The adapter base includes a base body, a first external connection piece, a first current collector, a first jumper, a second external connection piece, a second current collector and a second jumper.

[0040] Specifically, refer to Figure 1 A three-dimensional schematic diagram of a battery module adapter base in an embodiment shown in FIG. Figure 2 FIG. 1 is a schematic top view of a base body 110 in an embodiment of the present invention. The base body 110 includes a first mounting area 111 and a second mounting area 112 that are opposite to each other in a first direction D1. Figure 2The first installation area 111 and the second installation area 112 are filled with hatching lines. The first installation area 111 is surrounded by a first side wall 113, and a first opening 114 is formed on the first side wall 113. Similarly, the second installation area 112 is surrounded by a second side wall 115, and a second opening 116 is formed on the second side wall 115. The first jumper and the second jumper can extend into the first installation area 111 and the second installation area 112 through the first opening 114 and the second opening 116, respectively, which will be described in detail later.

[0041] Figure 3 is a three-dimensional schematic diagram of a battery module adapter base in an embodiment, Figure 4 yes Figure 3 A top view of the adapter base for the battery module. Figure 3 and Figure 4 As shown, the first external connector 120 is disposed in the first installation area 111, and the first end 121 and the second end 122 of the first external connector 120 are respectively connected to the first busbar 130 and the first jumper 140. The first busbar 130 can be used to connect to the positive or negative electrode of the battery module. The first jumper 140 can be used to connect to the outside, such as to connect to an electrical device, or to connect to the first jumper in another adapter base, so that two battery modules can be connected in series.

[0042] refer to Figures 2 to 4 , one end of the first jumper 140 extends into the first installation area 111 through the first opening 114. The bolt 151 passes through the end and the second end 122 and is bolted to the bolt hole 117 in the first installation area 111. The two bolts 152 pass through the first end 121 and the first collector 130 and are bolted to the two bolt holes 118 respectively. The connection method between the first external component 120 and the first collector 130, and the connection method between the first external component 120 and the first jumper 140 are not limited to the above-mentioned bolting, for example, it can also be welding.

[0043] The first external connector 120, the first current collector 130 and the first jumper 140 are flat structures. The flat structure can reduce the dimensions of the first external connector 120, the first current collector 130 and the first jumper 140 in their respective thickness directions, which helps to reduce the volume of the adapter base; on the other hand, the flat structure can make the contact between the first external connector 120 and the first current collector 130, and between the first external connector 120 and the first jumper 140 surface contact, which is conducive to reducing contact resistance, thereby avoiding heating caused by excessive contact resistance.

[0044] refer to Figure 2 and Figure 3As shown, in one embodiment, the first installation area 111 is provided with a first positioning column 160 , and correspondingly, the first external component 120 is provided with a first positioning hole, into which the first positioning hole 160 is inserted. In this way, the first external component 120 can be positioned by the first positioning column 160 .

[0045] Back to Figure 3 and Figure 4 As shown, the second external component 170 is disposed in the second installation area 112. The second external component 170 includes a first section external component 171 and a second section external component 172. A safety unit 210 is connected between the first section external component 171 and the second section external component 172. The safety unit 210 can protect the adapter base and the battery module in the event of a short circuit. In some embodiments, the safety unit 210 may not be provided. In addition, the second external component 170 may be a single structure, not limited to Figure 3 and Figure 4 The split structure in.

[0046] refer to Figure 4 As shown, the second section external connection member 172 includes a connection portion 172a and a main body portion 172b. One end of the connection portion 172a is connected to the insurance unit 210, and the other end is connected to one end of the main body portion 172b, and the other end of the main body portion 172b is connected to one end of the second jumper 190. The first section external connection member 171 and the main body portion 172b both extend along the second direction D2, and the first section external connection member 171 and the main body portion 172b are adjacently arranged in the first direction D1 and separated by a preset distance, and the preset distance can be set according to requirements, for example, the preset distance is greater than the creepage distance.

[0047] refer to Figure 1 and Figure 2 As shown, in one embodiment, the base body 110 has an insulating plate 119, and the insulating plate 119 is disposed in the second mounting area 112. Figure 3 and Figure 4 As shown, the insulating plate 119 is located between the first section of the external component 171 and the main body 172b in the first direction D1. The insulating plate 119 can be used to isolate the first section of the external component 171 and the main body 172b to prevent electrical connection between the two. If there is electrical connection between the two, the current will not pass through the fuse unit 210, and the fuse unit 210 will not be able to play a protective role.

[0048] The second busbar 180 can be used to connect to the positive or negative electrode of the battery module. It can be understood that if the first busbar 140 is connected to the positive electrode of the battery module, the second busbar 180 is connected to the negative electrode of the battery module; if the first busbar 140 is connected to the negative electrode of the battery module, the second busbar 180 is connected to the positive electrode of the battery module. The second jumper 190 can be used to connect to the outside, such as to an electrical device, or to a second jumper in another adapter base, so that two battery modules can be connected in series.

[0049] The second external connector 170, the second current collector 180 and the second jumper 190 are flat structures. The flat structure can reduce the dimensions of the second external connector 170, the second current collector 180 and the second jumper 190 in their respective thickness directions, which helps to reduce the volume of the adapter base; on the other hand, the flat structure can make the contact between the second external connector 170 and the second current collector 180, and between the second external connector 170 and the second jumper 190 surface contact, which is conducive to reducing contact resistance, thereby avoiding heating caused by excessive contact resistance.

[0050] refer to Figures 2 to 4 , one end of the second jumper 190 extends into the second installation area 112 through the second opening 116. The bolt 153 passes through the end and the main body 172b and is bolted to the bolt hole 221 in the second installation area 112. The two bolts 154 pass through the second external component 170 and the second current collector 180 and are bolted to the two bolt holes 222 respectively. The connection method between the second external component 170 and the second current collector 180, and the connection method between the second external component 170 and the second jumper 190 are not limited to the above-mentioned bolting, for example, welding can also be used.

[0051] refer to Figure 2 and Figure 3 As shown, in one embodiment, the second mounting area 112 is provided with a second positioning column 230 , and correspondingly, the second external member 170 is provided with a second positioning hole, and the second positioning column 230 is inserted into the second positioning hole. In this way, the second external member 170 can be positioned by the second positioning column 230 .

[0052] Figure 5 2 is a three-dimensional schematic diagram of a battery module adapter base in an embodiment. Figure 1 and Figure 5 As shown, in one embodiment, the adapter base further includes a first top cover 241, a second top cover 242, a third top cover 243 and a fourth top cover 244. The first top cover 241 and the second top cover 242 are disposed on the first installation area 111, and the third top cover 243 and the fourth top cover 244 are disposed on the second installation area 112. The top cover can prevent the live structure inside the adapter base from being exposed, thereby reducing the risk of electric shock.

[0053] On the other hand, the present application also provides a battery pack, which includes a battery cell and a battery module adapter base as described above. The battery cell has a first electrode and a second electrode, the first electrode is connected to the first busbar, and the second electrode is connected to the second busbar.

[0054] The basic concepts have been described above. Obviously, for those skilled in the art, the above application disclosure is only an example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0055] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0056] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more application embodiments, in the above description of the embodiments of this application, multiple features are sometimes merged into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0057] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0058] Although the present application has been described with reference to the current specific embodiments, ordinary technicians in this technical field should recognize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions may be made without departing from the spirit of the present application. Therefore, as long as the changes and modifications to the above embodiments are within the essential spirit of the present application, they will fall within the scope of the claims of the present application.

Claims

1. A battery module adapter base, characterized in that: include: A base body (110) having a first installation area (111) and a second installation area (112) which are opposite to each other in a first direction; A first external connection member (120), a first current collector (130) and a first jumper (140), wherein the first external connection member (120) is disposed in the first installation area (111), and two ends thereof are respectively connected to the first current collector (130) and the first jumper (140); and A second external connector (170), a second current collector (180) and a second jumper (190), wherein the second external connector (170) is disposed in the second installation area (112) and two ends thereof are respectively connected to the second current collector (180) and the second jumper (190), wherein the external connector, the current collector and the jumper are flat structures.

2. The battery module adapter base according to claim 1, characterized in that It also includes a first top cover (241), a second top cover (242), a third top cover (243) and a fourth top cover (244), wherein the first top cover (241) and the second top cover (242) are covered in the first installation area (111), and the third top cover (243) and the fourth top cover (244) are covered in the second installation area (112).

3. The battery module adapter base according to claim 1, characterized in that: Two ends of the first external connection member (120) are bolted to the first current collector (130) and the first jumper (140) respectively.

4. The battery module adapter base according to claim 1, characterized in that: The first installation area (111) is provided with a first positioning column (160), and the first external component (120) has a first positioning hole, wherein the first positioning column (160) is inserted into the first positioning hole.

5. The battery module adapter base according to claim 1, characterized in that: The second external component (170) comprises a first section of the external component (171) and a second section of the external component (172), wherein the main bodies (172b) of the first section of the external component (171) and the second section of the external component both extend along the second direction, and the first section of the external component (171) and the main body (172b) are arranged adjacent to each other in the first direction and are spaced apart by a preset distance.

6. The battery module adapter base according to claim 5, characterized in that: The base body has an insulating plate (119), and the insulating plate (119) is arranged in the second installation area (112) and is located between the first section of the external connection member (171) and the main body (172b) in the first direction.

7. The battery module adapter base according to claim 6, characterized in that It also comprises a safety unit (210), two ends of which are respectively connected to the first section external connection component (171) and the second section external connection component (172).

8. The battery module adapter base according to claim 1, characterized in that: The second installation area (112) is provided with a second positioning column (230), and the second external connection component (170) has a second positioning hole, wherein the second positioning column (230) is inserted into the second positioning hole.

9. The battery module adapter base according to claim 1, characterized in that: Two ends of the second external connection member (170) are bolted to the second current collector (180) and the second cross-connector (190) respectively.

10. A battery pack, characterized in that: include: A battery cell having a first electrode and a second electrode; as well as The battery module adapter base according to any one of claims 1 to 9, wherein the first electrode and the second electrode are connected to a first busbar and a second busbar, respectively.

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