Battery module, battery pack and power device

Abstract

The utility model discloses a battery module, a battery pack and a power plant, the battery module comprises: a plurality of battery cells, the plurality of battery cells are arranged in the thickness direction of the battery cells; the battery monomers are arranged on the base; the end plate is arranged at at least one end of the base and can rotate relative to the base. According to the battery module disclosed by the utility model, the end plate which is rotatably connected with the base is arranged, so that the assembly difficulty of the battery module is reduced, the assembly rejection rate of the battery module is reduced, the assembly precision of the battery module is improved, zero-clearance box entering is realized, and the production cost of the battery module is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to power device manufacturing technical field especially a kind of battery module, battery pack and power device. BACKGROUND

[0002] The related art indicates that with the current social energy crisis increasingly serious, new energy industry has been global attention and rapid development, especially new energy vehicles are more and more social concern, wherein the cost of power battery becomes the important factor restricting the development of electric vehicles.

[0003] In LCTP project, after module is hoisted into box by adsorption, there is air gap of 0-10mm between module and side beam of box, end buffering foam is inserted between end cell and side beam to meet the stress requirement of end cell, 2 end buffering foams are used for single module, and 2-12 end buffering foams are used for whole package, which occupies a large proportion in battery pack cost, so end buffering foam is an important cost reduction point.

[0004] When LCTP module is automatically hoisted into box by adsorption, it is basically positioned into box by CCD camera now, the positioning accuracy error of this method can reach 1-2mm, and there is size tolerance between module and lower shell, which leads to difficulty in automatic positioning into box. UTILITY MODEL CONTENT

[0005] The utility model aims at at least solving one of the technical problems existing in prior art. To this end, the utility model provides a battery module, which has low assembly difficulty and high assembly precision.

[0006] The utility model further provides a battery pack with the battery module.

[0007] The utility model further provides a power device with the battery pack.

[0008] According to the battery module of the utility model, the battery monomer is arranged in the thickness direction of the battery monomer, the end plate is rotatably connected with the base, the assembly difficulty of the battery module is reduced, the assembly scrap rate of the battery module is reduced, the assembly precision of the battery module is improved, the 0-gap into box is realized, and the production cost of the battery module is reduced.

[0009] According to the battery module of the utility model, the assembly difficulty of the battery module is reduced, the assembly scrap rate of the battery module is reduced, the assembly precision of the battery module is improved, the 0-gap into box is realized, and the production cost of the battery module is reduced.

[0010] In some embodiments, both ends of the base are formed with mounting tables, and the end plate is rotatably connected with the mounting tables through rotating shafts.

[0011] In some embodiments, a first rotating hole is formed on the mounting table, a second rotating hole is formed on the end plate, and the rotating shaft is arranged in the first rotating hole and the second rotating hole.

[0012] In some embodiments, a first connecting hole is formed on the mounting table, the first connecting hole is arranged at intervals with the first rotating hole, a second connecting hole is formed on the end plate, the second connecting hole is arranged at intervals with the second rotating hole, and the end plate and the mounting table are fixedly connected through fasteners penetrating the first connecting hole and the second connecting hole.

[0013] In some embodiments, the battery module further comprises a cold plate arranged between the battery monomer and the base for cooling the battery monomer.

[0014] In some embodiments, a groove is formed on the side of the end plate away from the battery monomer, and a weight-reducing hole is formed on the peripheral wall of the end plate and communicates with the groove.

[0015] In some embodiments, a through groove is formed on the bottom of the base, and the through groove penetrates the base in the width direction of the base.

[0016] In some embodiments, a gap is arranged between two adjacent battery modules, or a support is arranged between two adjacent battery modules.

[0017] According to the battery pack of the second aspect of the utility model, the battery module of the above-mentioned first aspect is arranged, so that the overall performance of the battery pack is improved, and the production cost of the battery pack is reduced.

[0018] According to the battery pack of the utility model, the battery module of the above-mentioned first aspect is arranged, so that the overall performance of the battery pack is improved, and the production cost of the battery pack is reduced.

[0019] According to the power device of the third aspect of the utility model, the battery pack of the above-mentioned second aspect is arranged, so that the overall performance of the power device is improved, and the production cost of the power device is reduced.

[0020] According to the power device of the utility model, the battery pack of the above-mentioned second aspect is arranged, so that the overall performance of the power device is improved, and the production cost of the power device is reduced.

[0021] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the assembly schematic view of the battery module according to the embodiment of the utility model;

[0023] Figure 2 isFigure 1 Assembly view of the battery module from another perspective shown in FIG. 1;

[0024] Figure 3 Figure 1 Assembly completed view of the battery module shown in FIG. 1;

[0025] Figure 4 Figure 3 Assembly completed view of the battery module from another perspective shown in FIG. 1;

[0026] Figure 5 Figure 1 Schematic view of the base shown in FIG. 2;

[0027] Figure 6 Figure 5 Schematic view of the base from another perspective shown in FIG. 2;

[0028] Figure 7 Figure 1 Schematic view of the end plate shown in FIG. 3;

[0029] Figure 8 Figure 7 Schematic view of the end plate from another perspective shown in FIG. 3;

[0030] Figure 9 Figure 1 Schematic view of the cold plate shown in FIG. 4.

[0031] Reference signs:

[0032] 100, battery module; 1, battery cell; 2, base; 21, mounting table; 211, first through hole; 212, first connecting hole; 22, through slot; 3, end plate; 31, second through hole; 32, second connecting hole; 33, weight-reducing hole; 4, cold plate; 5, rotating shaft; 6, fastener. DETAILED DESCRIPTION

[0033] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0034] Reference will be made to Figures 1-9 The battery module 100 according to the first aspect of the present application will be described below.

[0035] As Figures 1-9 shown, the battery module 100 according to the first aspect of the present application includes: a battery cell 1, a base 2, and an end plate 3.

[0036] ​​​​​​​Specifically, the battery monomer 1 includes a plurality of battery monomers 1 arranged in the thickness direction of the battery monomer 1, the battery monomer 1 is arranged on the base 2, and the end plate 3 is arranged at least one end of the base 2 and is rotatable relative to the base 2. Figures 1-4 As shown in the figure, a plurality of battery monomers 1 are arranged on the base 2, and the end plate 3 is rotatably connected with the base 2 at both ends of the base 2. When the battery monomer 1 is placed on the base 2, the end plate 3 is fixedly connected with the base 2 by rotating. Therefore, the connection mode of the end plate 3 and the base 2 is simple and ingenious.

[0037] According to the battery module 100 of the embodiment of the utility model, the end plate 3 rotatably connected with the base 2 is arranged, which reduces the assembly difficulty of the battery module 100, reduces the assembly scrap rate of the battery module 100, improves the assembly precision of the battery module 100, realizes 0 gap into the box, and reduces the production cost of the battery module 100.

[0038] In some embodiments of the utility model, as shown in the figure, Figure 1 The both ends of the base 2 are formed with mounting tables 21, and the end plate 3 is rotatably connected with the mounting table 21 through the rotating shaft 5. In this way, the mounting table 21 provides a mounting point for the end plate 3, ensuring that the end plate 3 can be firmly mounted on the base 2, and the rotating shaft 5 is arranged, simplifying the connection structure between the base 2 and the end plate 3.

[0039] In some embodiments of the utility model, as shown in the figure, Figure 6 The mounting table 21 is formed with a first rotating hole 211, and the end plate 3 is formed with a second rotating hole 31. The rotating shaft 5 is arranged in the first rotating hole 211 and the second rotating hole 31. In this way, the base 2 and the end plate 3 are relatively rotated through the rotating shaft 5 penetrating the first rotating hole 211 and the second rotating hole 31, ensuring the connection stability of the base 2 and the end plate 3.

[0040] In some embodiments of the utility model, as shown in the figure, Figure 6 The mounting table 21 is formed with a first connecting hole 212, and the first connecting hole 212 is arranged at intervals with the first rotating hole 211, as shown in the figure, Figure 8 The end plate 3 is formed with a second connecting hole 32, and the second connecting hole 32 is arranged at intervals with the second rotating hole 31. The end plate 3 and the mounting table 21 are fixedly connected through the fastener 6 penetrating the first connecting hole 212 and the second connecting hole 32. It can be understood that when the battery module 100 is placed on the base 2, the first connecting hole 212 and the second connecting hole 32 are opposite after the end plate 3 is rotated to the mounting position, and the fastener 6 is penetrated into the first connecting hole 212 and the second connecting hole 32, so as to ensure that the end plate 3 and the base 2 can be stably connected.

[0041] In summary, the end plate 3 and the base 2 are relatively rotated through the first rotating hole 211 and the second rotating hole 31, and the end plate 3 and the base 2 are fixedly connected through the first connecting hole 212 and the second connecting hole 32.

[0042] In some embodiments of the utility model, the battery module 100 further includes: a cold plate 4, the cold plate 4 is arranged between the battery monomer 1 and the base 2, is used for cooling the battery monomer 1, helps maintaining the battery monomer 1 to run in a suitable temperature range, effectively manages the temperature of the battery monomer 1, improves the performance and life of the battery module 100.

[0043] In some embodiments of the utility model, the side of the end plate 3 away from the battery monomer 1 is formed with a groove, the peripheral wall of the end plate 3 is formed with a weight-reducing hole 33 in communication with the groove, and the bottom of the base 2 is formed with a through groove 22, the through groove 22 penetrates the base 2 in the width direction of the base 2. Therefore, the overall weight of the battery module 100 is reduced, and the overall performance of the battery module 100 is improved.

[0044] In some embodiments of the utility model, there is a gap between the adjacent two battery modules 100, or a supporting member is arranged between the adjacent two battery modules 100. Specifically, when the battery module 100 is a group force module, the battery monomer 1 is stacked using a mechanical arm, and the supporting member is arranged between the battery monomers 1, when the battery module 100 is a non-group force module, that is, there is an air gap between the battery monomers 1, after the module stacking is completed on the stacking tool, the entire module is adsorbed and hoisted, the end plate 3 at one end is tightly fixed into the box, and finally the end plate 3 at the other end is rotated relative to the base 2 and fixedly connected with the base 2.

[0045] According to the battery pack of the second aspect of the utility model, the battery module 100 of the first aspect of the utility model is arranged, so that the overall performance of the battery pack is improved, and the production cost of the battery pack is reduced.

[0046] According to the battery pack of the utility model embodiment, the battery module 100 of the first aspect of the utility model is arranged, so that the overall performance of the battery pack is improved, and the production cost of the battery pack is reduced.

[0047] According to the power device of the third aspect of the utility model, the battery pack of the second aspect of the utility model is arranged, so that the overall performance of the power device is improved, and the production cost of the power device is reduced.

[0048] According to the power device of the utility model embodiment, the battery pack of the second aspect of the utility model is arranged, so that the overall performance of the power device is improved, and the production cost of the power device is reduced.

[0049] In the description of the utility model, it is necessary to understand that the orientation or positional relation 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 the orientation or positional relation based on the orientation or positional relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

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

[0052] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the 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 one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

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

Claims

1. A battery module, characterized in that: include: A battery cell, wherein the battery cell comprises a plurality of battery cells, and the plurality of battery cells are arranged in a thickness direction of the battery cell; a base, on which the battery cells are mounted; An end plate is provided at at least one end of the base and is rotatable relative to the base.

2. The battery module according to claim 1, wherein: Both ends of the base are formed with mounting platforms, and the end plates are rotatably connected to the mounting platforms via rotating shafts.

3. The battery module according to claim 2, characterized in that: A first rotating hole is formed on the mounting platform, a second rotating hole is formed on the end plate, and the rotating shaft is inserted into the first rotating hole and the second rotating hole.

4. The battery module according to claim 3, characterized in that: A first connecting hole is formed on the mounting platform, and the first connecting hole is spaced apart from the first rotating hole. A second connecting hole is formed on the end plate, and the second connecting hole is spaced apart from the second rotating hole. The end plate and the mounting platform are fixedly connected by fasteners passing through the first connecting hole and the second connecting hole.

5. The battery module according to any one of claims 1 to 4, characterized in that: Also includes: A cold plate is provided between the battery cell and the base, and is used for cooling the battery cell.

6. The battery module according to any one of claims 1 to 4, characterized in that: A groove is formed on a side of the end plate facing away from the battery cell, and a weight-reducing hole communicating with the groove is formed on a peripheral wall of the end plate.

7. The battery module according to any one of claims 1 to 4, characterized in that: A through slot is formed at the bottom of the base, and the through slot passes through the base in the width direction of the base.

8. The battery module according to any one of claims 1 to 4, characterized in that: There is a gap between two adjacent battery modules, or a support member is provided between two adjacent battery modules.

9. A battery pack, characterized in that: A battery module comprising the battery module according to any one of claims 1 to 8.

10. A power device, characterized in that: Including the battery pack according to claim 9.

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