Battery cell modules, batteries, and electric two-wheelers

Abstract

This utility model discloses a battery cell module, a battery, and an electric two-wheeler, including a mounting frame, multiple battery cells, and a clamping mechanism. The multiple battery cells are mounted on the mounting frame and arranged along a first direction. A tab assembly is provided between two adjacent battery cells. The tab assembly includes two mating tabs, each connected to one of the adjacent battery cells. The clamping mechanism includes two clamping parts, each including a mounting strip and multiple clamping strips. The mounting strip is detachably mounted to the mounting frame and extends along the first direction. The multiple clamping strips are connected to the mounting strip and arranged along the first direction. The multiple clamping strips of the two clamping parts correspond one-to-one, with the corresponding two clamping strips mating to the opposite sides of the two tabs of the tab assembly. This utility model's battery cell module, battery, and electric two-wheeler not only make tab connection more convenient and time-saving, but also prevent the tabs from melting through or welding slag from piercing the aluminum-plastic film, resulting in better battery quality.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a cell module, a battery, and an electric two-wheeler. Background Technology

[0002] Some battery cell modules include multiple cells arranged side by side. In related technologies, one of the tabs of two adjacent cells is connected to another tab of the other cell by welding or multiple fasteners to achieve series connection between the cells. However, connecting by welding or multiple fasteners is cumbersome, time-consuming and labor-intensive, and it is also easy to melt through the tabs. In addition, the weld slag produced can easily puncture the outer aluminum-plastic film, resulting in poor battery quality. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a cell module that not only makes the connection of the tabs more convenient and saves more time and effort, but also prevents the tabs from melting through or the welding slag from piercing the aluminum-plastic film, resulting in better battery quality.

[0004] This utility model also proposes a battery having the above-mentioned cell module.

[0005] This utility model also proposes an electric two-wheeled vehicle with the above-mentioned battery.

[0006] According to a first aspect embodiment of the present invention, a battery cell module includes a mounting frame, a plurality of battery cells, and a clamping mechanism. The plurality of battery cells are disposed on the mounting frame and arranged along a first direction. An electrode assembly is provided between two adjacent battery cells. The electrode assembly includes two mating electrodes, which are respectively connected to two adjacent battery cells. The clamping mechanism includes two clamping portions. Each clamping portion includes a mounting strip and a plurality of clamping strips. The mounting strip is detachably mounted on the mounting frame and extends along the first direction. The plurality of clamping strips are connected to the mounting strip and arranged along the first direction. The plurality of clamping strips of the two clamping portions correspond one-to-one, and the corresponding two clamping strips are respectively mated to the opposite sides of the two electrodes of the electrode assembly.

[0007] The battery cell module according to the embodiments of this utility model has at least the following beneficial effects:

[0008] In this invention, when connecting two adjacent cells of a battery module in series, the two tabs of the tab assembly are brought together. Then, the two mounting strips of the clamping mechanism are installed on the mounting frame, extending along a first direction. Next, the corresponding clamping strips on the two clamping parts are clamped and attached to the opposite sides of the two tabs of the tab assembly, thus maintaining the two tabs of the tab assembly in a conductive state of mutual contact. This not only makes tab connection more convenient, time-saving, and labor-saving, but also ensures a more secure connection. Furthermore, it prevents welding through the tabs or welding slag from piercing the aluminum-plastic film, resulting in better battery quality.

[0009] According to some embodiments of the present invention, both the electrode tab and the clamping strip extend along a second direction perpendicular to the first direction, and the two mounting strips of the clamping mechanism are arranged along the second direction and are respectively located at both ends of the electrode tab along the second direction.

[0010] According to some embodiments of the present invention, the clamping part further includes:

[0011] Multiple limiting parts are connected to the mounting strip and arranged along the first direction;

[0012] In this configuration, multiple limiting portions on the same clamping part correspond one-to-one with multiple clamping strips, and a clamping groove is formed between the limiting portion and the corresponding clamping strip. The end of the clamping strip on another clamping part is inserted into the clamping groove.

[0013] According to some embodiments of the present invention, the ends of the two tabs of the tab assembly that are away from the battery cell are bent in opposite directions to form bent pieces, and the two bent pieces are fitted together and clamped between the corresponding two clamping strips.

[0014] According to some embodiments of the present invention, the mounting bracket includes:

[0015] The housing, in which the battery cell is located;

[0016] An insulating top plate is located at the top of the housing. The insulating top plate has multiple through holes running vertically through it. The electrode assembly passes through the through holes. The mounting strip is attached to the upper surface of the insulating top plate and is connected to the insulating top plate by fasteners.

[0017] According to some embodiments of this utility model, the two corresponding clamping strips are arranged vertically, and the mounting bracket further includes:

[0018] A protective plate is provided at the top of the housing and covers the insulating top plate. The protective plate has multiple through-holes for wiring. The bottom surface of the protective plate has multiple abutment portions, which abut against the top surface of the upper clamping strip of the two corresponding clamping strips.

[0019] According to some embodiments of the present invention, the upper surface of the insulating top plate is provided with an isolation strip between two adjacent tab assemblies.

[0020] According to some embodiments of the present invention, the middle battery cell is connected to two tabs arranged along the second direction, and two clamping mechanisms are provided accordingly, arranged along the second direction.

[0021] The battery according to a second aspect embodiment of the present invention includes the cell module described in the first aspect embodiment above.

[0022] The battery according to the embodiments of the present invention has at least the following beneficial effects:

[0023] The battery adopts the cell module of the first aspect embodiment of this utility model, which not only makes the connection of the tabs more convenient and saves more time and effort, but also avoids the situation of welding melting through the tabs or welding slag piercing through the aluminum-plastic film, resulting in better battery quality.

[0024] The electric two-wheeled vehicle according to a third aspect of the present invention includes the battery described in the second aspect of the present invention.

[0025] The electric two-wheeled vehicle according to the embodiments of this utility model has at least the following beneficial effects:

[0026] The electric two-wheeled vehicle uses the battery described in the second aspect of this utility model. The battery uses the cell module of the first aspect of this utility model, which not only makes the connection of the electrode tabs more convenient and saves more time and effort, but also avoids the situation where welding melts through the electrode tabs or welding slag punctures the aluminum-plastic film, resulting in better battery quality.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and some advantages will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0029] Figure 1 This is a schematic diagram of the battery cell module according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the internal structure of the shell;

[0031] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0032] Figure 4 This is a schematic diagram showing the fit of the two tabs of the tab assembly;

[0033] Figure 5 This is a schematic diagram of the clamping mechanism in operation.

[0034] Figure 6 This is a schematic diagram of the protective plate.

[0035] Icon labels:

[0036] Mounting bracket 100; housing 101; insulating top plate 102; protective plate 103; wiring hole 104; isolation strip 105;

[0037] Battery cell 200; electrode assembly 201; electrode 202; bending sheet 203;

[0038] Clamping mechanism 300; clamping part 301; mounting strip 302; clamping strip 303; limiting part 304; clamping groove 305. Detailed Implementation

[0039] 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 are only used to explain this utility model, and should not be construed as limiting this utility model.

[0040] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, the number of technical features indicated, or the order of the indicated technical features.

[0042] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0043] The following is for reference. Figures 1 to 6 This invention describes a cell module, a battery, and an electric two-wheeler according to embodiments of the present invention.

[0044] According to the first aspect embodiment of the present invention, the battery cell module, such as Figures 1 to 6 As shown, it includes a mounting bracket 100, multiple battery cells 200, and a clamping mechanism 300.

[0045] The mounting bracket 100 is used for mounting within the battery casing. Multiple battery cells 200 are mounted on the mounting bracket 100 and arranged along a first direction. A tab assembly 201 is provided between two adjacent battery cells 200. The tab assembly 201 includes two mating tabs 202, each connected to one of the adjacent battery cells 200. Specifically, the thickness direction of the battery cell 200 can be the first direction, and the width direction of the battery cell 200 can be a second direction perpendicular to the first direction. The tabs 202 can be arranged along... Extending in the second direction, the middle cell 200 can be connected to two tabs 202. The two tabs 202 of the middle cell 200 can be arranged along the second direction. The two outermost cells 200 can each have one tab 202. The middle cell 200 is attached to the corresponding tabs 202 on the adjacent cells 200 on both sides through its two tabs 202. The outermost cell 200 is attached to the corresponding tab 202 on the neighboring cell 200 through its one tab 202.

[0046] There can be two clamping mechanisms 300, which can be arranged along a second direction to correspond to the positions of the two tabs 202 of the battery cell 200 located in the middle. Each clamping mechanism 300 includes two clamping parts 301, each including a mounting strip 302 and multiple clamping strips 303. The mounting strip 302 is detachably mounted to the mounting frame 100 and extends along a first direction. The multiple clamping strips 303 are connected to the mounting strip 302 and arranged along the first direction. The clamping strips 303 can extend along a second direction. The multiple clamping strips 303 of the two clamping parts 301 correspond one-to-one, and the corresponding two clamping strips 303 respectively abut against the opposite sides of the two tabs 202 of the tab assembly 201, thereby clamping and fixing the two tabs 202 of the tab assembly 201 to improve the conductivity of the two tabs 202.

[0047] In this invention, when two adjacent cells 200 of a battery cell module need to be connected in series, the two tabs 202 of the tab assembly 201 are brought together. Then, the two mounting strips 302 of the clamping mechanism 300 are mounted on the mounting bracket 100, extending along a first direction. Next, the corresponding clamping strips 303 on the two clamping parts 301 are clamped and attached to the opposite sides of the two tabs 202 of the tab assembly 201, thus maintaining the two tabs 202 of the tab assembly 201 in a mutually attached conductive state. This not only makes connecting the tabs 202 more convenient, time-saving, and labor-saving, but also ensures a more secure connection. Furthermore, it prevents welding from melting through the tabs 202 or welding slag from piercing the aluminum-plastic film, resulting in better battery quality.

[0048] refer to Figures 2 to 5 As shown, in some embodiments of this utility model, both the tab 202 and the clamping bar 303 extend along a second direction perpendicular to the first direction, and the two mounting bars 302 of the clamping mechanism 300 are arranged along the second direction and are respectively located at both ends of the tab 202 along the second direction.

[0049] In this embodiment, both the tab 202 and the clamping strip 303 extend along a second direction perpendicular to the first direction. This results in a better clamping and fixing effect on the tab 202. In addition, the two mounting strips 302 of the clamping mechanism 300 are arranged along the second direction and are located at both ends of the tab 202 along the second direction. This avoids the situation where the ends of the two clamping strips 303 are located near the same end of the tab 202, resulting in a loose clamping. This further improves the clamping effect on the tab 202.

[0050] refer to Figure 5 As shown, in some embodiments of this utility model, the clamping part 301 further includes a plurality of limiting parts 304, which are connected to the mounting strip 302 and arranged along the first direction; wherein, the plurality of limiting parts 304 on the same clamping part 301 correspond one-to-one with the plurality of clamping strips 303, and a clamping groove 305 is formed between the limiting part 304 and the corresponding clamping strip 303, and the end of the clamping strip 303 on another clamping part 301 is inserted into the clamping groove 305.

[0051] In this embodiment, the ends of the two clamping strips 303 are inserted into the corresponding clamping grooves 305. This completely avoids the situation where the ends of the clamping strips 303 bend outwards due to the lack of restraint, thereby making the clamping strips 303 clamp the tabs 202 more effectively.

[0052] refer to Figure 4 As shown, in some embodiments of this utility model, the ends of the two tabs 202 of the tab assembly 201 that are away from the battery cell 200 are bent in opposite directions to form bent pieces 203, and the two bent pieces 203 are attached to each other and clamped between the corresponding two clamping strips 303.

[0053] In this embodiment, the tab 202 is bent to form a bent piece 203. The thickness direction of the bent piece 203 can be vertical, that is, two bent pieces 203 can be arranged vertically. The corresponding two clamping strips 303 can be arranged vertically and clamp the bent pieces 203 of the two tabs 202 of the tab assembly 201. This arrangement not only makes it easier for the clamping strips 303 to hold the tabs, but also reduces the possibility of the tabs 202 slipping out of the clamping strips 303, making the assembly more stable.

[0054] refer to Figures 1 to 3As shown, in some embodiments of this utility model, the mounting bracket 100 includes a housing 101 and an insulating top plate 102. The battery cell 200 is located inside the housing 101. The insulating top plate 102 is located at the top of the housing 101 and has multiple through holes extending vertically. The electrode assembly 201 passes through the through holes. The mounting strip 302 is attached to the upper surface of the insulating top plate 102 and connected to the insulating top plate 102 by fasteners. For example, the insulating top plate 102 can be installed on the top of the housing 101 by fasteners. The through holes can correspond one-to-one with the electrode assemblies 201, and the size of the through holes can be adapted to the size of the electrode assemblies 201, so that the electrode assemblies 201 can just pass through the through holes.

[0055] In this embodiment, the insulating top plate 102 separates the electrical connection points of the tab assembly 201 from the battery cell 200. The insulating top plate 102 can be made of electrically insulating material, thereby reducing the risk of short circuits and leakage, resulting in better safety. Furthermore, after the tab 202 passes through the through-hole, it is clamped by the clamping strip 303, ensuring that all battery cells 200 are connected to the insulating top plate 102, thus making the battery cell module structure more stable.

[0056] refer to Figure 1 and Figure 6 As shown, in some embodiments of this utility model, two corresponding clamping strips 303 are arranged vertically. The mounting bracket 100 also includes a protective plate 103, which is located at the top of the housing 101 and covers the insulating top plate 102. The protective plate 103 has multiple vertically penetrating wiring holes 104, and the bottom surface of the protective plate 103 has multiple abutment portions that abut against the top surface of the upper clamping strip 303 among the two corresponding clamping strips 303. For example, the abutment portion may abut against the middle position of the top surface of the upper clamping strip 303 among the two corresponding clamping strips 303.

[0057] In this embodiment, a protective plate 103 is provided to further protect the clamping mechanism 300 and the tab assembly 201. The protective plate 103 can also be made of electrically insulating material, further reducing the risk of short circuits and leakage. The protective plate 103 has multiple wiring holes 104 for convenient wiring. Furthermore, the bottom surface of the protective plate 103 has multiple abutment portions that abut against the top surface of the upper clamping strip 303 of the two corresponding clamping strips 303. This allows for compression of the clamping strip 303 except at both ends, resulting in better clamping of the tabs 202 and thus better electrical connection between the two tabs 202.

[0058] refer to Figure 2 and Figure 3As shown, in some embodiments of this utility model, the upper surface of the insulating top plate 102 is provided with a separating strip 105 between two adjacent tab assemblies 201. For example, the separating strip 105 may include two sets, the two sets of separating strips 105 may be arranged along a second direction, and the same set of separating strips 105 may be arranged along a first direction.

[0059] In this embodiment, the isolation strip 105 not only limits the tab assembly 201 and the corresponding two clamping strips 303, making the clamping strips 303 hold the tab 202 better, but also separates two adjacent tab assemblies 201, further reducing the risk of short circuit and leakage.

[0060] refer to Figure 2 As shown, in some embodiments of this utility model, the middle battery cell 200 is connected to two tabs 202 arranged along the second direction, and two clamping mechanisms 300 are correspondingly provided and arranged along the second direction. In this embodiment, two clamping mechanisms 300 are provided, and the two clamping mechanisms 300 can clamp and fix the corresponding tab assembly 201.

[0061] The battery according to a second aspect embodiment of the present invention includes the cell module described in the first aspect embodiment. For example, the battery may further include a casing, the cell module being mounted in the casing, and a cover being provided at the top of the casing.

[0062] The battery adopts the cell module of the first aspect embodiment of this utility model, which not only makes the connection of the tab 202 more convenient and saves more time and effort, but also avoids the situation of welding melting through the tab 202 or welding slag piercing through the aluminum-plastic film, resulting in better battery quality.

[0063] It should be noted that since the battery can adopt all the technical solutions of the cell module of the first aspect embodiment, it has at least all the beneficial effects brought about by the technical solutions of the first aspect embodiment. These additional beneficial effects will not be elaborated here.

[0064] It is understood that other components and operations of the battery according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0065] The electric two-wheeled vehicle according to a third aspect of the present invention includes the battery described in the second aspect of the present invention.

[0066] The electric two-wheeled vehicle uses the battery of the second aspect embodiment of this utility model. The battery uses the cell module of the first aspect embodiment of this utility model, which not only makes the connection of the tab 202 more convenient and saves more time and effort, but also avoids the situation where the welding melts through the tab 202 or the welding slag punctures the aluminum-plastic film, resulting in better battery quality.

[0067] It should be noted that since electric two-wheeled vehicles can adopt all the technical solutions of the battery cell module of the first aspect embodiment, they have at least all the beneficial effects brought about by the technical solutions of the first aspect embodiment. These additional beneficial effects will not be elaborated here.

[0068] It is understood that other components and operations of the electric two-wheeler according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0069] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A battery cell module, characterized in that, include: Mounting rack; Multiple battery cells are disposed on the mounting frame and arranged along a first direction. A tab assembly is provided between two adjacent battery cells. The tab assembly includes two mating tabs, and the two tabs are respectively connected to the two adjacent battery cells. The clamping mechanism includes two clamping parts, each clamping part including a mounting strip and a plurality of clamping strips. The mounting strip is detachably mounted to the mounting frame and extends along the first direction. The plurality of clamping strips are connected to the mounting strip and arranged along the first direction. The plurality of clamping strips of the two clamping parts correspond one-to-one, and the corresponding two clamping strips are respectively attached to the opposite sides of the two tabs of the tab assembly.

2. The battery cell module according to claim 1, characterized in that, Both the electrode tab and the clamping bar extend along a second direction perpendicular to the first direction. The two mounting bars of the clamping mechanism are arranged along the second direction and are located at both ends of the electrode tab along the second direction.

3. The cell module according to claim 2, characterized in that, The clamping part further includes: Multiple limiting parts are connected to the mounting strip and arranged along the first direction; In this configuration, multiple limiting portions on the same clamping part correspond one-to-one with multiple clamping strips, and a clamping groove is formed between the limiting portion and the corresponding clamping strip. The end of the clamping strip on another clamping part is inserted into the clamping groove.

4. The cell module according to claim 3, characterized in that, The ends of the two tabs of the electrode assembly that are away from the battery cell are bent in opposite directions to form bent pieces, and the two bent pieces are fitted together and clamped between the corresponding two clamping strips.

5. The battery cell module according to claim 1, characterized in that, The mounting bracket includes: The housing, wherein the battery cell is located within the housing; An insulating top plate is located at the top of the housing. The insulating top plate has multiple through holes running vertically through it. The electrode assembly passes through the through holes. The mounting strip is attached to the upper surface of the insulating top plate and is connected to the insulating top plate by fasteners.

6. The cell module according to claim 5, characterized in that, The two corresponding clamping strips are arranged vertically, and the mounting bracket also includes: A protective plate is provided at the top of the housing and covers the insulating top plate. The protective plate has multiple through-holes for wiring. The bottom surface of the protective plate has multiple abutment portions, which abut against the top surface of the upper clamping strip of the two corresponding clamping strips.

7. The cell module according to claim 5, characterized in that, The upper surface of the insulating top plate is provided with an isolation strip between two adjacent tab assemblies.

8. The cell module according to claim 2, characterized in that, The middle battery cell is connected to two tabs arranged along the second direction, and two clamping mechanisms are provided accordingly, arranged along the second direction.

9. A battery, characterized in that, Includes the cell module as described in any one of claims 1 to 8.

10. An electric two-wheeled vehicle, characterized in that, Includes the battery as described in claim 9.

Images