Scooter battery module

Abstract

The utility model provides a scooter battery module which solves the technical problems that the heat dissipation and shockproof effects of an existing scooter battery module cannot meet the requirements, and battery cells are prone to being damaged. Comprising a shell, a protection plate, a plurality of battery cells and a plurality of battery cell support assemblies, the plurality of battery cell support assemblies are linearly arranged, and two layers of limiting through holes for mounting the battery cells are formed in each battery cell support assembly; the battery cell at the head end is connected with the protection plate through a first nickel sheet, the adjacent battery cells are connected through a second nickel sheet, and the two layers of battery cells at the tail end are connected through a third nickel sheet; a plurality of positioning grooves arranged in an array are formed in the bottom surface of the inner side of the shell, a positioning raised line is arranged between every two adjacent positioning grooves, each positioning groove corresponds to each battery cell, and each positioning raised line corresponds to a battery cell gap. The battery module is widely applied to the technical field of battery modules.

Description

Technical Field

[0001] The present application relates to a battery module, and more specifically, to a scooter battery module. Background Art

[0002] Electric scooters use battery modules as their main power supply. Battery modules generally include several battery cells, protection boards and battery cell holders. Several battery cells are connected in series and parallel to meet voltage and power requirements, and the battery cell holders are used to position each battery cell.

[0003] Since the battery module itself generates a lot of heat during use and charging, the heat dissipation of the battery module is extremely important. The current heat dissipation methods generally include air cooling, liquid cooling and phase change material cooling. However, setting the above heat dissipation structure in the battery module also greatly increases the cost and volume of the battery module, which does not meet the requirements of light and compact electric scooters.

[0004] In addition, during the use of electric scooters, the battery cells are prone to vibration and friction, which can easily cause damage to the battery cells and reduce their service life. Summary of the invention

[0005] In order to solve the problem that the heat dissipation and shockproof effects of existing scooter battery modules cannot meet the requirements and easily lead to damage of battery cells, the technical solution adopted in the present application is: to provide a scooter battery module, including a shell, a protective plate, a plurality of battery cells and a plurality of battery cell bracket assemblies, the plurality of battery cell bracket assemblies are arranged linearly, and each battery cell bracket assembly is provided with two layers of limiting through holes for installing battery cells; the battery cell at the head end is connected to the protective plate through a first nickel sheet, the adjacent battery cells are connected through a second nickel sheet, and the two layers of battery cells at the tail end are connected through a third nickel sheet; the inner bottom surface of the shell is provided with a plurality of positioning grooves arranged in an array, and positioning convex strips are provided between adjacent positioning grooves, each positioning groove corresponds to each battery cell, and each positioning convex strip corresponds to the battery cell gap.

[0006] Preferably, the battery cell bracket assembly comprises a first battery cell bracket and a second battery cell bracket which are arranged opposite to each other, and the first battery cell bracket and the second battery cell bracket are respectively sleeved on both ends of the battery cell; hollow portions are provided at positions of the first battery cell bracket and the second battery cell bracket corresponding to the battery cell.

[0007] Preferably, the second nickel sheet includes a first connecting nickel sheet and a second connecting nickel sheet, the first connecting nickel sheet includes a first connecting sheet and a first connecting leg extending outward from the first connecting sheet, the second connecting nickel sheet includes a second connecting sheet and a second connecting leg extending outward from the second connecting sheet, the first connecting sheet and the second connecting sheet are respectively fitted and connected to the battery cells of two adjacent battery cell bracket assemblies, and the first connecting leg is connected to the second connecting leg.

[0008] Preferably, the top and the bottom of the first battery cell support and the second battery cell support are both provided with limiting placement grooves corresponding to the first connecting leg and the second connecting leg.

[0009] Preferably, the first battery cell support and the second battery cell support are provided with connecting bosses at both upper and lower ends of the end surfaces facing each other, and the connecting bosses are provided with yielding portions leading to the limiting placement grooves.

[0010] Preferably, the connection boss of the first battery cell support is provided with a boss, and the connection boss of the second battery cell support is provided with a groove.

[0011] Preferably, the protrusions or grooves and the relief portions are staggered and evenly distributed.

[0012] Preferably, matching convex column and groove structures are provided at opposite ends of adjacent battery cell support assemblies.

[0013] Preferably, the positioning convex strip is a structure with a wide bottom and a narrow top.

[0014] The beneficial effect of the utility model is that the battery holder assembly is provided with two layers of limiting through holes, so that two layers of battery cells can be installed, and through a variety of nickel sheet connections, the battery cells are connected in parallel first and then in series, meeting the battery installation and use requirements of the scooter. At the same time, this arrangement method has only two layers of battery cells in a row, which is convenient for heat dissipation, and the number of limiting through holes in each layer can also be adjusted according to actual needs. The positioning bosses and positioning grooves set in the outer shell can play a good positioning role for the battery cells, thereby avoiding the problem of damage caused by vibration and friction of the battery cells during the use of the electric scooter, and effectively extending the service life of the battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 A schematic diagram of the appearance structure of a scooter battery module provided in one embodiment of the present application;

[0017] Figure 2 for Figure 1 Schematic diagram of the explosion structure Figure 1 ;

[0018] Figure 3 for Figure 1 Schematic diagram of the explosion structure Figure 2 ;

[0019] Figure 4A schematic diagram of the structure of a cell support assembly, a second nickel sheet, and a third nickel sheet provided in an embodiment of the present application;

[0020] Figure 5 for Figure 4 A partial structural diagram of

[0021] Figure 6 A schematic diagram of the structure of a first battery cell support provided in one embodiment of the present application;

[0022] Figure 7 A schematic structural diagram of a second battery cell bracket provided in one embodiment of the present application.

[0023] Explanation of symbols in the figure:

[0024] 1. Shell; 2. Protection plate; 3. Battery holder assembly; 4. Battery cell; 5. Limiting through hole; 6. First nickel sheet; 7. Second nickel sheet; 8. Third nickel sheet; 9. Positioning groove; 10. Positioning convex strip; 11. First connecting nickel sheet; 12. Second connecting nickel sheet; 13. First connecting sheet; 14. First connecting leg; 15. Second connecting sheet; 16. Second connecting leg; 17. Boss; 18. Groove; 19. First battery holder; 20. Second battery holder; 21. Hollow portion; 22. Limiting placement groove; 23. Connecting boss; 24. Yielding portion. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0026] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] The scooter battery module provided in the embodiment of the present application is now described.

[0028] See also Figures 1 to 4, is a schematic diagram of the structure of a scooter battery module, which includes a shell 1, a protective plate 2, a plurality of battery holder assemblies 3 and a plurality of battery cells 4, wherein the plurality of battery holder assemblies 3 are arranged linearly. Each battery holder assembly 3 is provided with two layers of limiting through holes 5 for installing the battery cells 4; the battery cells 4 at the head end are connected to the protective plate 2 through a first nickel sheet 6, the adjacent battery cells 4 are connected through a second nickel sheet 7, and the two layers of battery cells 4 at the tail end are connected through a third nickel sheet 8; the inner bottom surface of the shell 1 is provided with a plurality of positioning grooves 9 arranged in an array, and positioning ridges 10 are provided between adjacent positioning grooves 9, each positioning groove 9 corresponds to each battery cell 4, and each positioning ridge 10 corresponds to the gap between the battery cells 4.

[0029] The battery module is provided with two layers of battery cells 4, and the structure is a double-layer arrangement. In addition, the series and parallel connection between the battery cells 4 is realized through a variety of nickel sheets. The overall shape is flat and long, and the space occupied is relatively small, which can better adapt to the installation environment of the scooter. At the same time, this arrangement method has only two layers of battery cells 4 in a row, which is convenient for heat dissipation, and the number of limiting through holes 5 in each layer can also be adjusted according to actual needs. The positioning convex strips 10 and positioning grooves 9 set in the shell 1 can play a good positioning role for the battery cell 4, thereby avoiding the problem of damage caused by vibration and friction of the battery cell 4 during the use of the electric scooter, and effectively extending the service life of the battery cell 4.

[0030] In one embodiment, see Figure 4 and Figure 5 In order to avoid direct contact and friction between the battery cells 4 connected in series, the second nickel sheet 7 is composed of two nickel sheets connected to each other. Specifically, the second nickel sheet 7 includes a first connecting nickel sheet 11 and a second connecting nickel sheet 12. The first connecting nickel sheet 11 includes a first connecting sheet 13 and a first connecting leg 14 extending outward from the first connecting sheet 13. The second connecting nickel sheet 12 includes a second connecting sheet 15 and a second connecting leg 16 extending outward from the second connecting sheet 15. The first connecting sheet 13 and the second connecting sheet 15 are respectively fitted and connected to the battery cells 4 of the two adjacent battery cell bracket assemblies 3, and the first connecting leg 14 is connected to the second connecting leg 16. During assembly, the first connecting sheet 13 and the second connecting sheet 15 are respectively fitted to the two battery cells 4 connected in series, and the first connecting leg 14 and the second connecting leg 16 are bent and extended to one place to be connected to each other.

[0031] See also Figure 6 and Figure 7 In one embodiment, the opposite ends of adjacent cell support assemblies 3 are provided with matching convex columns 17 and grooves 18, and the convex columns 17 and grooves 18 of two adjacent cell support assemblies 3 are plugged together to realize the series connection of several cell support assemblies 3. At the same time, the number of cell support assemblies 3 can be selected according to actual needs, thereby controlling the number of cells 4.

[0032] In one embodiment, the battery cell bracket assembly 3 includes a first battery cell bracket 19 and a second battery cell bracket 20 that are relatively arranged, and the first battery cell bracket 19 and the second battery cell bracket 20 are respectively sleeved on both ends of the battery cell 4; the first battery cell bracket 19 and the second battery cell bracket 20 are provided with a hollow portion 21 at the position corresponding to the battery cell 4, so as to increase the heat dissipation area of ​​the battery cell 4 and extend the service life of the battery cell 4.

[0033] For further information, see Figure 5 The top and bottom of the first battery cell bracket 19 and the second battery cell bracket 20 are both provided with limiting placement grooves 22 corresponding to the first connecting leg 14 and the second connecting leg 16. The first connecting leg 14 and the second connecting leg 16 can be bent and extended to be connected in the limiting placement grooves 22 to avoid friction with the outer shell 1 and the like and drive the battery cell 4, so as to avoid damage to the battery cell 4.

[0034] For further information, see Figure 6 , Figure 7 The first battery cell holder 19 and the second battery cell holder 20 have connecting bosses 23 at their upper and lower ends on their opposite end surfaces. The connecting bosses 23 have a paving portion 24 leading to the limiting placement groove 22. The paving portion 24 is used to guide the first connecting leg 14 and the second connecting leg 16 to the limiting placement groove 22.

[0035] Preferably, the connection boss 23 of the first battery cell support 19 is provided with a boss 17, and the connection boss 23 of the second battery cell support 20 is provided with a groove 18; the clearance portion 24 is staggered and evenly distributed with the boss 17 or the groove 18. The uniform distribution and connection of the groove 18 and the boss 17 help the battery cell support assembly 3 to achieve stable connection. At the same time, the uniform distribution of the clearance portion 24 can make the first connection leg 14 and the second connection leg 16 evenly arranged, so as to make the first connection nickel sheet 11 and the second connection nickel sheet 12 stably connected, that is, the connection of the second nickel sheet 7 is stable and reliable, thereby helping to extend the service life of the battery cell 4.

[0036] In one embodiment, see Figure 3 The positioning convex strip 10 is a structure with a wide bottom and a narrow top. Specifically, the top and bottom of the positioning convex strip 10 can be connected by an inclined surface or a curved surface.

[0037] The battery cell support assembly 3 of the scooter battery cell module provided by the utility model is provided with two layers of limiting through holes 5, so that two layers of battery cells 4 can be installed, and through a variety of nickel sheet connections, the battery cells 4 are connected in parallel first and then in series, meeting the battery installation and use requirements of the scooter. At the same time, this arrangement method has only two layers of battery cells 4 in a row, which is convenient for heat dissipation, and the number of limiting through holes 5 in each layer can also be adjusted according to actual needs. The positioning convex strips 10 and positioning grooves 9 arranged in the outer shell 1 can play a good positioning role for the battery cells 4, thereby avoiding the problem of damage caused by vibration and friction of the battery cells 4 during the use of the electric scooter, and effectively extending the service life of the battery cells 4. The adjacent battery cell support assemblies 3 are plugged together end to end to realize the series connection of several battery cell support assemblies 3. The number of battery cell support assemblies 3 can also be selected according to actual needs to control the number of battery cells 4.

[0038] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A scooter battery module, comprising a housing, a protection plate and a plurality of battery cells; characterized in that: It also includes a plurality of battery cell bracket assemblies, which are arranged linearly, and each of the battery cell bracket assemblies is provided with two layers of limiting through holes for installing the battery cells; the battery cells at the head end are connected to the protection plate through a first nickel sheet, the adjacent battery cells are connected through a second nickel sheet, and the two layers of battery cells at the tail end are connected through a third nickel sheet; the inner bottom surface of the shell is provided with a plurality of positioning grooves arranged in an array, and positioning ridges are provided between adjacent positioning grooves, each positioning groove corresponds to each battery cell, and each positioning ridge corresponds to the battery cell gap.

2. The scooter battery module according to claim 1, characterized in that: The battery cell bracket assembly includes a first battery cell bracket and a second battery cell bracket which are arranged opposite to each other. The first battery cell bracket and the second battery cell bracket are respectively sleeved on two ends of the battery cell. The first battery cell bracket and the second battery cell bracket are provided with hollow parts at positions corresponding to the battery cell.

3. The scooter battery module according to claim 2, characterized in that: The second nickel sheet includes a first connecting nickel sheet and a second connecting nickel sheet. The first connecting nickel sheet includes a first connecting sheet and a first connecting leg extending outward from the first connecting sheet. The second connecting nickel sheet includes a second connecting sheet and a second connecting leg extending outward from the second connecting sheet. The first connecting sheet and the second connecting sheet are respectively fitted and connected to the battery cells of two adjacent battery cell bracket assemblies, and the first connecting leg is connected to the second connecting leg.

4. The scooter battery module according to claim 3, characterized in that: The top and bottom of the first battery cell support and the second battery cell support are both provided with limiting placement grooves corresponding to the first connecting leg and the second connecting leg.

5. The scooter battery module according to claim 4, characterized in that: The upper and lower ends of the end surfaces of the first battery cell support and the second battery cell support facing each other are both provided with connecting bosses, and the connecting bosses are provided with a giving portion leading to the limiting placement groove.

6. The scooter battery module according to claim 5, characterized in that: The connection boss of the first battery cell support is provided with a boss, and the connection boss of the second battery cell support is provided with a groove.

7. The scooter battery module according to claim 6, characterized in that: The convex columns or the concave grooves and the evacuation portions are staggered and evenly distributed.

8. The scooter battery module according to claim 1, characterized in that: The opposite ends of the adjacent battery support assemblies are provided with matching convex columns and groove structures.

9. The scooter battery module according to claim 1, characterized in that: The positioning convex strip is a structure with a wide bottom and a narrow top.

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