Copper bar and battery pack with same

Abstract

The utility model provides a copper bar and a battery pack with the same, the copper bar comprises a body, the body is provided with a plurality of heat dissipation holes, the plurality of heat dissipation holes penetrate through the body along the thickness direction of the body, the plurality of heat dissipation holes extend along a first direction and are arranged at intervals along a second direction, and the body is provided with a plurality of heat dissipation holes; the body is divided into a plurality of conduction sections, and the first direction intersects with the second direction. According to the copper bar provided by the utility model, the body is provided with the heat dissipation holes, so that the heat dissipation of the copper bar can be facilitated, the heat dissipation efficiency of the copper bar can be improved, the overcurrent capability of the copper bar can be improved, the copper bar can be prevented from being damaged at high temperature, the service life of the copper bar can be effectively prolonged, and meanwhile, the weight of the copper bar can be reduced; the copper bar is convenient to transport and the manufacturing cost of the copper bar is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pack manufacturing technical field especially is related to a copper bar and battery pack with it. BACKGROUND

[0002] In the copper bar use process, copper bar can produce heat, however, the copper bar heat dissipation efficiency is low in prior art, cannot satisfy the heat dissipation demand of copper bar, is easy to lead to copper bar high temperature damage, thereby leading to the service life of copper bar reduces. SUMMARY

[0003] The utility model discloses at least one of the technical problems in the prior art is solved, for this, the utility model provides a copper bar, the copper bar can improve service life.

[0004] The utility model further provides a battery pack with the copper bar.

[0005] According to the copper bar of the utility model embodiment, including: the body, be equipped with a plurality of heat dissipation holes on the body, a plurality of heat dissipation holes are along the thickness direction of the body and pass through the body, a plurality of heat dissipation holes extend along the first direction and are arranged along the second direction interval, so that the body is divided into a plurality of conducting sections, the first direction and the second direction intersect.

[0006] According to the copper bar of the utility model, the heat dissipation hole is arranged on the body, can conveniently heat dissipation of copper bar, can improve the heat dissipation efficiency of copper bar, improve the flow capacity of copper bar, avoid copper bar high temperature damage, and then can effectively improve the service life of copper bar, simultaneously, can reduce the weight of copper bar, conveniently transport and reduce the manufacturing cost of copper bar.

[0007] According to some embodiments of the utility model, the heat dissipation hole includes: the first hole, the first hole extends linearly along the first direction, the second hole is arranged on both sides of the first hole in the second direction, and at least part of the second hole is formed into an arc shape.

[0008] According to some optional embodiments of the utility model, the second hole includes: a first section, the first section extends linearly along the first direction, and a second section, the second section is connected to both ends of the first section, and the second section is an arc shape extending towards the inside of the body.

[0009] According to some embodiments of the utility model, the cross-sectional areas of the plurality of conducting sections are equal.

[0010] According to some embodiments of the utility model, in the direction from the two sides to the middle of the body in the second direction, the spacing between adjacent conducting sections gradually increases.

[0011] According to some embodiments of the utility model, the body is provided with a reinforcing rib, the reinforcing rib is arranged between adjacent conducting sections, and two ends of the reinforcing rib are connected with adjacent conducting sections respectively.

[0012] According to some embodiments of the utility model, the body is provided with a connecting protrusion at two ends in the first direction, and the connecting protrusion is used for electrically connecting with adjacent components.

[0013] According to some embodiments of the utility model, the copper bar comprises an insulating layer covering the outer surface of the body.

[0014] According to some optional embodiments of the utility model, the insulating layer is an epoxy resin piece.

[0015] According to the battery pack of the second aspect embodiment of the utility model, the copper bar according to the first aspect of the utility model is included.

[0016] According to the battery pack of the utility model, by arranging the copper bar of the first aspect embodiment above, the heat dissipation hole is arranged on the body, the heat dissipation of the copper bar can be facilitated, the heat dissipation efficiency of the copper bar can be improved, the overcurrent capacity of the copper bar can be improved, the copper bar can be prevented from being damaged due to high temperature, the service life of the copper bar can be effectively improved, meanwhile, the weight of the copper bar can be reduced, the transportation of the copper bar can be facilitated, and the manufacturing cost of the copper bar can be reduced.

[0017] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of one angle of the copper bar according to the embodiment of the utility model;

[0019] Figure 2 is Figure 1 a schematic view of another angle of the copper bar shown in figure 1;

[0020] Figure 3 is Figure 2 a schematic view of the body shown in figure 1.

[0021] REFERENCE NUMERALS:

[0022] 100, copper bar;

[0023] 10, body; 11, conducting section; 12, heat dissipation hole; 121, first hole; 122, second hole; 1221, first section; 1222, second section; 13, reinforcing rib; 14, connecting protrusion;

[0024] 20, insulating layer. DETAILED DESCRIPTION

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] The following is a reference appendix. Figures 1-3 Description of a copper busbar 100 according to an embodiment of the present utility model.

[0027] Reference Figure 1 , Figure 2 and Figure 3 According to an embodiment of the present invention, the copper busbar 100 includes: a body 10, on which a plurality of heat dissipation holes 12 are provided, the plurality of heat dissipation holes 12 being arranged along the thickness direction of the body 10 (e.g., ...). Figure 3 The body 10 shown has multiple heat dissipation holes 12 extending along the first direction (e.g., vertical direction). Figure 3 Extending in the front-to-back direction (as shown) and along the second direction (such as...) Figure 3 The components are arranged at intervals in the left and right directions (as shown) to divide the body 10 into multiple conductive segments 11, with the first direction intersecting the second direction.

[0028] For example, such as Figure 1 , Figure 2 and Figure 3 As shown, the main body 10 is provided with seven heat dissipation holes 12. The heat dissipation holes 12 penetrate the main body 10 in the vertical direction and extend in the front-back direction. The seven heat dissipation holes 12 are arranged at intervals in the left-right direction.

[0029] The copper busbar 100 of this invention has heat dissipation holes 12 on its body 10. When the copper busbar 100 is in continuous operation, it generates heat, which can be dissipated through the heat dissipation holes 12. This facilitates heat dissipation, effectively improving the heat dissipation efficiency of the copper busbar 100, thus preventing high-temperature damage and extending its service life. Simultaneously, the multiple heat dissipation holes 12 effectively reduce the heat generation of the copper busbar 100, preventing high temperatures from affecting energy transfer efficiency. Furthermore, the heat dissipation holes 12 reduce the weight and material requirements of the copper busbar 100, thereby facilitating transportation and reducing manufacturing costs.

[0030] According to an embodiment of the present invention, the copper busbar 100 has heat dissipation holes 12 on its body 10, which facilitates heat dissipation of the copper busbar 100, thereby improving the heat dissipation efficiency and current carrying capacity of the copper busbar 100, preventing high-temperature damage to the copper busbar 100, and thus effectively extending the service life of the copper busbar 100. At the same time, it can reduce the weight of the copper busbar 100, making it easier to transport and reducing the manufacturing cost of the copper busbar 100.

[0031] According to some embodiments of this utility model, refer to Figure 2 and Figure 3 The heat dissipation hole 12 includes: a first hole 121 and a second hole 122, wherein the first hole 121 is along a first direction (e.g., Figure 3 The second hole 122 is located in the first hole 121 in the second direction (as shown in the front-back direction) extending in a straight line; Figure 3 On both sides (as shown in the left and right directions), at least a portion of the second hole 122 is formed in an arc shape. That is to say, either a portion of the second hole 122 is formed in an arc shape, or the entire second hole 122 is formed in an arc shape.

[0032] In this way, the structure of the first hole 121 is reasonably designed and can make full use of the space of the body 10, thereby ensuring the heat dissipation efficiency of the copper busbar 100. At the same time, due to the limitation of the width of the copper busbar 100 itself, the second hole 122 is set to have an arc-shaped structure, thereby ensuring the area of ​​the heat dissipation hole 12 on the copper busbar 100, thus ensuring the heat dissipation effect. Therefore, it can effectively prevent the copper busbar 100 from being damaged by high temperature.

[0033] For example, such as Figure 2 and Figure 3 As shown, the first hole 121 extends in a straight line in the front-back direction, and the second hole 122 is located on both sides of the first hole 121 in the left-right direction.

[0034] According to some optional embodiments of the present invention, refer to Figure 3 The second hole 122 includes: a first segment 1221 and a second segment 1222, the first segment 1221 being along a first direction (e.g., Figure 3 Extending in a straight line (as shown in the front-back direction), the second segment 1222 connects to both ends of the first segment 1221 (as shown in the front-back direction). Figure 3 The first segment 1221 shown has two ends at the front and rear, and the second segment 1222 is an arc extending toward the interior of the body 10.

[0035] By setting the second segment 1222 to an arc shape, the space at the end of the body 10 can be fully utilized, thereby ensuring the heat dissipation effect of the body 10. At the same time, it can avoid the second segment 1222 from dividing the end of the body 10, so that multiple conductive segments 11 can be connected at the end of the body 10, thereby ensuring the strength of the body 10.

[0036] For example, as shown in Figure 3 the first section 1221 extends linearly in the front-rear direction, and the second sections 1222 are connected to the front end and the rear end of the first section 1221 respectively. Taking the second hole 122 on the left side of the first hole 121 as an example, the rear end of the front-side second section 1222 is connected to the front end of the first section 1221, the front end of the front-side second section 1222 extends to the right, the front end of the rear-side second section 1222 is connected to the rear end of the first section 1221, and the rear end of the rear-side second section 1222 extends to the right. The second holes 122 on the right side of the first hole 121 are arranged symmetrically with the second holes 122 on the left side in the left-right direction.

[0037] Further, as shown in Figure 2 and Figure 3 , by providing the heat dissipation holes 12, compared with the traditional copper bar 100, under the condition that the area of the copper bar 100 of the present application is equal to that of the traditional copper bar 100, according to the temperature rise simulation calculation, the heat dissipation efficiency of the copper bar 100 of the present application is higher, and if the traditional copper bar 100 is used, the cross-sectional area of the traditional copper bar 100 needs to be increased by 1 / 3 to achieve approximately the same temperature rise.

[0038] According to some embodiments of the present application, referring to Figure 2 and Figure 3 , the cross-sectional areas of the plurality of conducting sections 11 are equal. Thus, the energy transmission efficiency of the plurality of conducting sections 11 can be ensured to be equal, thereby the stability of the entire copper bar 100 can be ensured, and meanwhile, it can effectively prevent the cross section of a certain conducting section 11 from being too small to cause overloading and high-temperature damage to the conducting section 11, thereby the copper bar 100 can be protected.

[0039] According to some embodiments of the present application, referring to Figure 2 and Figure 3 , the distance between adjacent conducting sections 11 gradually increases in the direction from the two sides to the middle of the body 10 in the second direction (e.g., the left-right direction as shown in Figure 3 ). Thus, since the heat generation is the highest at the middle position of the body 10, limiting the distance between adjacent conducting sections 11 can ensure the heat dissipation effect of the conducting section 11 at the middle, thereby effectively preventing the conducting section 11 at the middle from being damaged by high temperature and effectively ensuring the service life of the copper bar 100.

[0040] According to some embodiments of the present application, referring to Figure 2 and Figure 3 , the body 10 is provided with reinforcing ribs 13, the reinforcing ribs 13 are arranged between adjacent conducting sections 11, and the two ends of the reinforcing ribs 13 are connected with adjacent conducting sections 11 respectively. Thus, the reinforcing ribs 13 can strengthen the connection strength between adjacent conducting sections 11, thereby effectively preventing the conducting sections 11 from being damaged by fracture, and further ensuring the overall strength of the copper bar 100.

[0041] For example, as shown inFigure 2 and Figure 3 As shown in FIG. 1, the reinforcing rib 13 extends in the left-right direction, and the left and right ends of the reinforcing rib 13 are respectively connected to two adjacent conducting sections 11.

[0042] According to some embodiments of the present application, referring to Figure 2 and Figure 3 , the body 10 is provided with a connecting protrusion 14 at both ends in the first direction (e.g., the front-back direction as shown in FIG. 1), and the connecting protrusion 14 is used for electrical connection with adjacent components. Figure 3 Thus, the body 10 can be connected to adjacent structures through the connecting protrusion 14, thereby facilitating the connection of the copper bar 100 to adjacent structures.

[0043] For example, as shown in FIG. 1 and FIG. 2, the body 10 is provided with a connecting protrusion 14 at both ends, and the copper bar 100 is electrically connected to adjacent structures through the connecting protrusion 14. Figure 2 Figure 3 Further, as shown in FIG. 1 and FIG. 2, the middle position of the body 10 is a connecting section, which can be lengthened or shortened according to actual conditions, and the reinforcing rib 13 on the body 10 is adjusted according to the length of the connecting section, for example, the number of reinforcing ribs 13 is increased or decreased, thereby improving the versatility of the copper bar 100, so as to meet various use requirements, and the reinforcing rib 13 is adjusted according to the connecting section, thereby ensuring the strength of the copper bar 100.

[0044] Further, as shown in FIG. 1 and FIG. 2, the middle position of the body 10 is a connecting section, which can be lengthened or shortened according to actual conditions, and the reinforcing rib 13 on the body 10 is adjusted according to the length of the connecting section, for example, the number of reinforcing ribs 13 is increased or decreased, thereby improving the versatility of the copper bar 100, so as to meet various use requirements, and the reinforcing rib 13 is adjusted according to the connecting section, thereby ensuring the strength of the copper bar 100. Figure 2 Figure 3 According to some embodiments of the present application, referring to , the copper bar 100 comprises an insulating layer 20 covering the outer surface of the body 10.

[0045] Thus, the insulating effect of the body 10 can be ensured, effectively preventing short circuit caused by contact between other structures and the body 10, thereby ensuring the safe use of the copper bar 100. Figure 3 According to some optional embodiments of the present application, referring to

[0046] and Figure 2 , the insulating layer 20 is an epoxy resin member. Figure 3 Thus, the epoxy resin is easy to obtain and has low cost, thereby facilitating batch use, and the epoxy resin can be directly coated on the body 10, which is simple in process, thereby improving the manufacturing efficiency of the copper bar 100.

[0047] According to the battery pack of the second aspect of the present application, referring to Figure 1 , Figure 2 and Figure 3 , the copper bar 100 of the first aspect of the present embodiment is included.

[0048] ​According to the battery pack of the embodiment of the utility model, through setting the copper bar 100 of the first aspect of the embodiment, the heat dissipation hole 12 is arranged on the body 10, the heat dissipation of the copper bar 100 can be facilitated, the heat dissipation efficiency of the copper bar 100 can be improved, the overcurrent capacity of the copper bar 100 can be improved, the copper bar 100 is avoided high temperature damage, and then the service life of the copper bar 100 can be effectively improved, simultaneously, the weight of the copper bar 100 can be reduced, the transportation of the copper bar 100 is facilitated and the manufacturing cost of the copper bar 100 is reduced.

[0049] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0050] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0051] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0052] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without mutual contradiction.

[0053] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A copper busbar, characterized in that, include: The body has multiple heat dissipation holes that penetrate the body along its thickness direction. The multiple heat dissipation holes extend along a first direction and are spaced apart along a second direction to divide the body into multiple conductive segments. The first direction intersects the second direction.

2. The copper busbar according to claim 1, characterized in that, The heat dissipation holes include: A first hole, the first hole extending in a straight line along the first direction; The second hole is located on both sides of the first hole in the second direction, and at least a portion of the second hole is formed in an arc shape.

3. The copper busbar according to claim 2, characterized in that, The second hole includes: The first segment extends in a straight line along the first direction. The second segment connects to both ends of the first segment, and the second segment is an arc extending toward the interior of the body.

4. The copper busbar according to claim 1, characterized in that, The cross-sectional areas of the multiple conductive segments are equal.

5. The copper busbar according to claim 1, characterized in that, In the second direction, from both sides to the middle, the spacing between adjacent conductive segments of the body gradually increases.

6. The copper busbar according to claim 1, characterized in that, The main body is provided with reinforcing ribs, which are located between adjacent conductive sections, and the two ends of the reinforcing ribs are respectively connected to the adjacent conductive sections.

7. The copper busbar according to claim 1, characterized in that, The body has connecting protrusions at both ends in the first direction, and the connecting protrusions are used for electrical connection with adjacent components.

8. The copper busbar according to claim 1, characterized in that, include: An insulating layer that covers the outer surface of the body.

9. The copper busbar according to claim 8, characterized in that, The insulating layer is an epoxy resin component.

10. A battery pack, characterized in that, The copper busbar includes any one of claims 1-9.

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