Stacked cylindrical battery module

Abstract

The utility model discloses a kind of stacked cylindrical battery modules, including several groups of single battery module stacked and installed together, the single battery module includes module upper stacking support, module lower stacking support, electrode busbar, several cylindrical batteries are clamped between the module upper stacking support and the module lower stacking support, the module upper stacking support includes upper support main body, and the two sides of the upper support main body are respectively equipped with upper support module side mounting ear one and upper support module side mounting ear two.Affordable effect is in that: through module upper and lower stacking support are equipped with busbar fixing groove, the versatility of the cylindrical battery assembly of different welding surfaces is realized, and can be stacked or stacked with multiple modules, and the module mounting mode in box is diversified, it can be fixed by side mounting ear, and it can be fixed in box by top surface or bottom surface stacking mounting ear, solve single fixed mode problem.

Description

Technical Field

[0001] This utility model relates to the field of battery module structure, and in particular to a stacked cylindrical battery module. Background Technology

[0002] Currently, most cylindrical battery modules consist of several components, including the battery cell, upper bracket, lower bracket, busbar, data acquisition harness, and BMS. Given the structure of cylindrical battery modules, upper and lower brackets are typically provided for fixing the cylindrical batteries. The upper and lower brackets for cylindrical battery modules on the market vary depending on the position of the positive and negative terminals of the battery. Existing technology has the following problems: First, cylindrical battery holders cannot be used interchangeably to assemble cylindrical batteries with different welding surfaces. Second, cylindrical battery modules cannot be stacked on top of each other; Third, the installation method of cylindrical battery modules is relatively simple and cannot be applied to different installation occasions. Utility Model Content

[0003] The purpose of this invention is to provide a stacked cylindrical battery module in order to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions: A stacked cylindrical battery module includes several sets of single battery modules stacked together. Each single battery module includes an upper stacking bracket, a lower stacking bracket, and an electrode busbar. Several cylindrical batteries are sandwiched between the upper stacking bracket and the lower stacking bracket. The module stacking bracket includes an upper bracket body. The upper bracket body has two side mounting ears for the upper bracket module, and a number of upper bracket module stacking mounting ears are installed on the top edge of the upper bracket body. The top surface of the upper bracket body is surrounded by an upper busbar assembly groove through the upper bracket busbar surround. The lower stacking bracket of the module includes a lower bracket body. A lower bracket module side mounting ear 1 and a lower bracket module side mounting ear 2 are respectively installed on both sides of the lower bracket body. Several lower bracket module stacking mounting ears are installed along the bottom edge of the lower bracket body. A lower manifold groove is enclosed on the bottom surface of the lower bracket body by a lower bracket manifold surrounding edge. The upper bracket body has an upper frame top recess corresponding to the lower bracket module stacking mounting ears, and an upper frame ear mounting screw post is provided in the upper frame top recess. The lower bracket body has a lower frame bottom recess corresponding to the upper bracket module stacking mounting ears, and a lower frame ear mounting screw post is provided in the lower frame bottom recess.

[0005] Furthermore, the upper busbar combination groove is provided with a plurality of upper electrode holes, and the lower busbar groove is provided with a plurality of lower electrode holes.

[0006] Furthermore, the cylindrical battery is a same-side welded cylindrical battery, and the electrode busbar is a same-side welded busbar, which is disposed in the upper busbar assembly groove.

[0007] Furthermore, the cylindrical battery is a cylindrical battery welded on both sides, and the electrode busbar includes a top busbar welded on both sides and a bottom busbar welded on both sides. The top busbar welded on both sides is located in the upper busbar assembly groove, and the bottom busbar welded on both sides is located in the lower busbar groove.

[0008] Furthermore, the upper support body is provided with upper and lower connecting holes, and an upper frame connecting hole post is installed at the bottom of the upper and lower connecting holes. The lower support body is provided with a lower frame connecting hole post corresponding to the upper frame connecting hole post.

[0009] Furthermore, the stacked cylindrical battery module also includes a protective housing, and several stacked single battery modules are fixedly installed inside the protective housing.

[0010] Furthermore, an internal screw post is provided on the right side of the inner wall of the protective box. The side mounting ears of the upper bracket module and the side mounting ears of the lower bracket module are both installed onto the internal screw post by internal screws.

[0011] Furthermore, the inner side wall of the protective box is provided with an internal screw post two on the left side. The side mounting ears of the upper bracket module and the side mounting ears of the lower bracket module are both installed on the internal screw post two by the internal screws.

[0012] Furthermore, the inner side wall of the protective box is provided with an internal screw post three near the bottom, and the lower support module stacking mounting ear on the bottommost module stacking bracket is installed onto the internal screw post three via the internal screw post three.

[0013] Furthermore, the inner side wall of the protective box is provided with four internal screw posts near the top, and the upper bracket module stacking mounting ears on the topmost module stacking bracket are installed onto the four internal screw posts through the four internal screws.

[0014] The beneficial effects are as follows: The stacked cylindrical battery module of this utility model has busbar fixing grooves on both the upper and lower stacking brackets of the module, which realizes the universality of cylindrical battery assembly with different welding surfaces, and can be stacked with each other or multiple modules can be stacked for use. The module installation method inside the box is diversified. It can be fixed by side mounting ears or by stacking mounting ears on the top or bottom surface, thus solving the problem of a single fixing method. Attached Figure Description

[0015] Figure 1 This utility model describes the structure of a stacked cylindrical battery module. Figure 1 ; Figure 2 This is an enlarged view of structure A of the stacked cylindrical battery module described in this utility model; Figure 3 This is a single-cell module stacking structure diagram of a stacked cylindrical battery module according to the present invention; Figure 4 This is a top structural diagram of the stacking bracket on the module of the stacked cylindrical battery module described in this utility model; Figure 5 This is a bottom structural diagram of the lower stacking support of a stacked cylindrical battery module according to the present invention; Figure 6 This is a structural diagram of a stacked cylindrical battery module with welded cylindrical batteries on the same side, as described in this utility model. Figure 7 This is a structural diagram of a stacked cylindrical battery module with welded cylindrical battery modules on both sides, as described in this utility model. Figure 8 This utility model describes a cylindrical battery structure for a stacked cylindrical battery module. Figure 9 This utility model describes the structure of a stacked cylindrical battery module. Figure 2 ; Figure 10 This is an enlarged view of the B structure of the stacked cylindrical battery module described in this utility model.

[0016] The annotations in the attached figures are explained as follows: 1. Single battery module; 2. Upper stacking bracket of the module, 21. Upper bracket body, 22. Upper bracket module stacking mounting ear, 221. Hole position one, 23. Upper bracket module side mounting ear one, 24. Upper bracket module side mounting ear two, 25. Upper bracket top recess, 26. Upper bracket ear mounting screw post, 27. Upper bracket connecting hole post, 28. Upper bracket busbar surround, 29. Upper electrode hole; 3. Lower stacking bracket of the module, 31. Lower bracket body, 32. Lower bracket module stacking mounting ear, 321. Hole position two, 33. Lower bracket module side mounting ear one, 34. Lower bracket module side mounting ear two, 35. Lower bracket bottom recess. 36. Lower bracket lug mounting screw post; 37. Lower bracket connecting hole post; 38. Lower bracket busbar surround; 39. Lower electrode hole; 4. Cylindrical battery; 41. Cylindrical battery welded on both sides; 411. Cylindrical battery negative terminal welded on both sides; 412. Cylindrical battery positive terminal welded on both sides; 42. Cylindrical battery welded on the same side; 421. Cylindrical battery negative terminal welded on the same side; 422. Cylindrical battery positive terminal welded on the same side; 5. Protective housing; 51. Screw post one inside the housing; 52. Screw one inside the housing; 53. Screw post three inside the housing; 54. Screw three inside the housing; 6. Top busbar welded on both sides; 7. Bottom busbar welded on both sides; 8. Busbar welded on the same side. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. Example

[0018] The following is combined with Figure 1-6 , Figure 8 Further explanation of the stacked cylindrical battery module provided in Embodiment 1: An embodiment of this utility model provides a stacked cylindrical battery module, including several sets of single battery modules 1 stacked together. The several sets of single battery modules 1 can be stacked vertically. In this embodiment, there are three sets of single battery modules 1 stacked vertically.

[0019] The single-cell module 1 includes an upper stacking bracket 2, a lower stacking bracket 3, and an electrode busbar. Several cylindrical cells 4 are sandwiched between the upper stacking bracket 2 and the lower stacking bracket 3. The upper stacking bracket 2 and the lower stacking bracket 3 on two adjacent groups of single-cell modules 1 can be stacked and fixed, thereby achieving stacking.

[0020] The module stacking bracket 2 includes an upper bracket body 21. The upper bracket body 21 has a first upper bracket module side mounting ear 23 and a second upper bracket module side mounting ear 24 installed on its two sides respectively. A plurality of upper bracket module stacking mounting ears 22 are installed at the top edge of the upper bracket body 21. The top surface of the upper bracket body 21 is surrounded by an upper busbar assembly groove through an upper busbar perimeter 28. The upper busbar assembly groove can accommodate either a top busbar 6 welded on both sides or a busbar 8 welded on the same side.

[0021] The module lower stacking bracket 3 includes a lower bracket body 31. The lower bracket body 31 has a lower bracket module side mounting ear 1 33 and a lower bracket module side mounting ear 2 34 installed on both sides. A number of lower bracket module stacking mounting ears 32 are installed at the bottom edge of the lower bracket body 31. The bottom surface of the lower bracket body 31 is surrounded by a lower busbar groove through the lower bracket busbar surround 38.

[0022] In one embodiment, the upper bracket module side mounting ear 23, the upper bracket module side mounting ear 24, the lower bracket module side mounting ear 33, and the lower bracket module side mounting ear 24 have the same structure.

[0023] The upper support body 21 is provided with an upper frame top recess 25 corresponding to the stacking mounting ears 32 of the lower support module. The upper frame top recess 25 is provided with an upper frame ear mounting screw post 26. The lower support body 31 is provided with a lower frame bottom recess 35 corresponding to the stacking mounting ears 22 of the upper support module. The lower frame bottom recess 35 is provided with a lower frame ear mounting screw post 36. Here, "corresponding" refers to the correspondence of the upper and lower positions when stacked.

[0024] In one embodiment, the upper support module stack mounting ear 22 and the lower support module stack mounting ear 32 have the same structure.

[0025] In this embodiment, the upper busbar combination groove is provided with a plurality of upper electrode holes 29, and the lower busbar groove is provided with a plurality of lower electrode holes 39, so that the pressing part of the electrode busbar can be pressed onto the electrode of the cylindrical battery 4.

[0026] In this embodiment, the cylindrical battery 4 is a same-side welded cylindrical battery 42, and the electrode busbar is a same-side welded busbar 8. The same-side welded busbar 8 is disposed in the upper busbar assembly groove. One end of the same-side welded cylindrical battery 42 is provided with a same-side welded cylindrical battery positive electrode 422 and a same-side welded cylindrical battery negative electrode 421. This is a common same-side cylindrical battery structure, which can be referred to in detail. Figure 8 a.

[0027] In this embodiment, the upper support body 21 is provided with upper and lower connecting holes, and an upper frame connecting hole post 27 is installed at the bottom of the upper and lower connecting holes. The lower support body 31 is provided with a lower frame connecting hole post 37 corresponding to the upper frame connecting hole post 27. The upper frame connecting hole post 27 and the lower frame connecting hole post 37 abut against each other, thereby supporting the upper support body 21 and the lower support body 31.

[0028] In one embodiment, after the upper frame connecting post 27 and the lower frame connecting post 37 abut against each other, a long screw can be passed through both to fix the upper support body 21 and the lower support body 31, thereby fixing the upper stacked support 2 and the lower stacked support 3 of the module to increase the support strength.

[0029] In this embodiment, the stacked cylindrical battery module also includes a protective housing 5, and several stacked single battery modules 1 are fixedly installed inside the protective housing 5. For details on fixed installation methods, please refer to [link / reference]. Figure 2 The inner wall of the protective box 5 is provided with an internal screw post 51 on the right side. The side mounting ears 23 of the upper bracket module and the side mounting ears 33 of the lower bracket module are installed on the internal screw post 51 by internal screws 52.

[0030] In another embodiment, a second screw post (not shown in the figure, its structure is the same as the first screw post 51) is provided on the left side of the inner wall of the protective box 5. The second mounting ear 24 on the side of the upper bracket module and the second mounting ear 34 on the side of the lower bracket module are both installed on the second screw post 2 through the second screw post 2 (not shown in the figure).

[0031] In this embodiment, two adjacent single battery modules 1 are installed together with screws. The upper bracket module stack mounting ear 22 is inserted into the lower bracket bottom recess 35 above it and installed onto the lower bracket ear mounting screw post 36 with screws. The lower bracket module stack mounting ear 32 is inserted into the upper bracket top recess 25 below it and installed onto the upper bracket ear mounting screw post 26 with screws. Understandably, the upper bracket module stacking mounting ear 22 is provided with a hole 221 corresponding to the lower bracket ear mounting screw post 36, and a screw is used to pass through the hole 221 to lock it to the lower bracket ear mounting screw post 36; the lower bracket module stacking mounting ear 32 is provided with a hole 321 corresponding to the upper bracket ear mounting screw post 26, and a screw is used to pass through the hole 321 to lock it to the upper bracket ear mounting screw post 26, thereby fixing the upper module stacking bracket 2 and the lower module stacking bracket 3 together. Example

[0032] like Figure 1-5 and Figure 7-8 As shown, an embodiment of this utility model provides a stacked cylindrical battery module, including several sets of single battery modules 1 stacked together, which can be stacked vertically. The difference from Embodiment 1 is that the cylindrical battery 4 is a cylindrical battery 41 welded on both sides, and the electrode busbar includes a top busbar 6 welded on both sides and a bottom busbar 7 welded on both sides. The top busbar 6 welded on both sides is located in the upper busbar combination groove, and the bottom busbar 7 welded on both sides is located in the lower busbar groove.

[0033] like Figure 8 As shown in Figure b, the two ends of the cylindrical battery 41 welded on both sides are respectively provided with a negative electrode 411 and a positive electrode 412. Example

[0034] like Figure 9-10 As shown, an embodiment of this utility model provides a stacked cylindrical battery module, including several sets of single battery modules 1 stacked together, which can be stacked vertically. The difference from Embodiment 1 is that the inner side wall of the protective box 5 is provided with an internal screw post 53 at the bottom position, and the lower bracket module stacking mounting ear 32 on the bottommost module lower stacking bracket 3 is installed on the internal screw post 53 by an internal screw 54.

[0035] In another embodiment, the inner side wall of the protective box 5 is provided with a box screw post four (not shown in the figure, its structure is the same as the box screw post three 53) near the top. The support module stacking mounting ear 22 on the topmost module stacking bracket 2 is installed on the box screw post four through the box screw four (not shown in the figure).

[0036] In the above three embodiments, the busbar fixing grooves are provided on both the upper and lower stacking brackets of the modules, which realizes the universality of cylindrical battery assembly with different welding surfaces and allows them to be stacked together or multiple modules to be stacked for use. The internal modules can be installed in various ways, either by mounting them on the side or by stacking mounting ears on the top or bottom, thus solving the problem of a single fixing method.

[0037] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A stacked cylindrical battery module, characterized in that: It includes several sets of single-cell modules (1) stacked together. The single-cell module (1) includes an upper stacking bracket (2), a lower stacking bracket (3), and an electrode busbar. Several cylindrical cells (4) are sandwiched between the upper stacking bracket (2) and the lower stacking bracket (3). The module stacking bracket (2) includes an upper bracket body (21). The upper bracket body (21) has an upper bracket module side mounting ear 1 (23) and an upper bracket module side mounting ear 2 (24) installed on both sides. The upper bracket body (21) has several upper bracket module stacking mounting ears (22) installed at the top edge. The top surface of the upper bracket body (21) is surrounded by an upper busbar assembly groove through the upper busbar surround (28). The lower stacking bracket (3) of the module includes a lower bracket body (31). The lower bracket body (31) has a lower bracket module side mounting ear 1 (33) and a lower bracket module side mounting ear 2 (34) installed on both sides. The lower bracket body (31) has a number of lower bracket module stacking mounting ears (32) installed at the bottom edge. The bottom surface of the lower bracket body (31) is surrounded by a lower busbar groove through the lower bracket busbar surround (38). The upper bracket body (21) is provided with an upper rack top recess (25) corresponding to the lower bracket module stacking mounting ears (32). The upper rack top recess (25) is provided with an upper rack ear mounting screw post (26). The lower bracket body (31) is provided with a lower rack bottom recess (35) corresponding to the upper bracket module stacking mounting ears (22). The lower rack bottom recess (35) is provided with a lower rack ear mounting screw post (36).

2. The stacked cylindrical battery module according to claim 1, characterized in that: The upper busbar combination groove is provided with a number of upper pole holes (29), and the lower busbar groove is provided with a number of lower pole holes (29).

3. A stacked cylindrical battery module according to claim 1, characterized in that: The cylindrical battery (4) is a cylindrical battery (42) welded on the same side, and the electrode busbar is a busbar (8) welded on the same side. The busbar (8) is located in the upper busbar combination groove.

4. A stacked cylindrical battery module according to claim 1, characterized in that: The cylindrical battery (4) is a cylindrical battery (41) welded on both sides. The electrode busbar includes a top busbar (6) welded on both sides and a bottom busbar (7) welded on both sides. The top busbar (6) welded on both sides is located in the upper busbar combination groove, and the bottom busbar (7) welded on both sides is located in the lower busbar groove.

5. A stacked cylindrical battery module according to claim 1, characterized in that: The upper support body (21) is provided with upper and lower connecting holes, and an upper frame connecting hole column (27) is installed at the bottom of the upper and lower connecting holes. The lower support body (31) is provided with a lower frame connecting hole column (37) corresponding to the upper frame connecting hole column (27).

6. A stacked cylindrical battery module according to claim 1, characterized in that: It also includes a protective housing (5), and several stacked single battery modules (1) are fixedly installed inside the protective housing (5).

7. A stacked cylindrical battery module according to claim 6, characterized in that: The inner wall of the protective box (5) is provided with an inner screw post (51) on the right side. The side mounting ears (23) of the upper bracket module and the side mounting ears (33) of the lower bracket module are installed on the inner screw post (51) by the inner screw (52).

8. A stacked cylindrical battery module according to claim 7, characterized in that: The inner wall of the protective box (5) is provided with a second screw post inside the box on the left side. The second mounting ear (24) on the side of the upper bracket module and the second mounting ear (34) on the side of the lower bracket module are both installed on the second screw post inside the box through the second screw inside the box.

9. A stacked cylindrical battery module according to claim 6, characterized in that: The inner side wall of the protective box (5) is provided with a box screw post three (53) near the bottom. The lower support module stacking mounting ear (32) on the bottom module lower stacking bracket (3) is installed on the box screw post three (53) by the box screw three (54).

10. A stacked cylindrical battery module according to claim 9, characterized in that: The inner side wall of the protective box (5) is provided with four screw posts inside the box near the top. The upper bracket module stacking mounting ear (22) on the topmost module stacking bracket (2) is installed on the screw posts inside the box by the screw posts inside the box.

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