Battery cell module, battery and electric two-wheeled vehicle

Abstract

The utility model discloses a battery cell module, battery and electric two-wheeled vehicle, relates to electric two-wheeled vehicle technical field, wherein the battery cell module includes a plurality of battery cells and a plurality of clamping assemblies, the plurality of battery cells are arranged side by side, a tab assembly is arranged between every two adjacent battery cells, each tab assembly includes two first tabs that are attached to each other, and the two first tabs are attached to each other. The tab assembly comprises two first tabs, the two first tabs are respectively connected to two adjacent battery cells, the clamping assembly comprises two clamping pieces, the two clamping pieces are respectively attached to the sides, deviating from each other, of the two first tabs of the tab assembly, and a fastener is mounted between the two clamping pieces. According to the battery cell module, the battery and the electric two-wheeled vehicle, the connection of the tabs is more convenient, more time-saving and labor-saving, the connection is firmer, in addition, the situation that the aluminum plastic film is punctured by welding slag is avoided, and the quality of the battery is better.

Description

Technical Field

[0001] The utility model relates to the technical field of electric two-wheeled vehicles, and in particular to a battery core module, a battery and an electric two-wheeled vehicle. Background Art

[0002] The battery of an electric two-wheeled vehicle generally includes a box body and a battery cell module. The battery cell module is contained in the box body, and the battery cell module includes a plurality of battery cells arranged side by side. In the related art, one tab of one of the two adjacent battery cells is welded to one tab of the other battery cell to realize the series connection between the battery cells. However, the connection between the tabs by welding is not only troublesome, time-consuming and labor-intensive, but also prone to problems such as loose welding or melting through. In addition, the welding slag generated can easily pierce the external aluminum-plastic film, resulting in poor battery quality. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a battery cell module, which not only makes the connection of the tabs more convenient, saves time and effort, but also makes the connection more secure, and does not cause welding slag to pierce the aluminum-plastic film, so that the battery quality is better.

[0004] The utility model also provides a battery having the battery core module.

[0005] The utility model also provides an electric two-wheeled vehicle with the battery.

[0006] According to the battery cell module of the first aspect of the utility model, the battery cell module comprises a plurality of battery cells and a plurality of clamping assemblies, wherein the plurality of battery cells are arranged side by side, and a pole ear assembly is provided between two adjacent battery cells, the pole ear assembly comprises two first pole ears that fit together, and the two first pole ears are respectively connected to the two adjacent battery cells, and the clamping assembly comprises two clamping plates, and the two clamping plates are respectively fitted to the opposite sides of the two first pole ears of the pole ear assembly, and a fastener is installed between the two clamping plates.

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

[0008] In the utility model, when two adjacent cells of the cell module need to be connected in series, the two first pole tabs of the pole tab assembly are fitted together, and then the two clamping pieces of the clamping assembly are respectively fitted to the opposite sides of the two first pole tabs of the pole tab assembly, and the two clamping pieces are connected by fasteners. The two clamping pieces can cooperate to clamp the two first pole tabs of the pole tab assembly, so that the two first pole tabs of the pole tab assembly are kept in a conductive state of fitting each other. In this way, not only the connection of the first pole tab is more convenient, more time-saving and labor-saving, but also the connection is more firm. In addition, there will be no situation where welding slag pierces the aluminum-plastic film, and the battery quality is better.

[0009] According to some embodiments of the utility model, the battery cell module also includes a mounting plate, the battery cell is located below the mounting plate, the clamping assembly is attached to the top surface of the mounting plate, the mounting plate is provided with a plurality of clearance grooves, and the first pole ear is inserted into the clearance grooves.

[0010] According to some embodiments of the utility model, the two first pole tabs of the pole tab assembly are bent in opposite directions at one end away from the battery core to form a bending portion, and the bending portion is clamped between the two clamping pieces. The bending portion is provided with a connecting hole for the fastener to pass through.

[0011] According to some embodiments of the present utility model, the mounting plate is provided with a limiting structure corresponding to the clamping assembly, and the limiting structure is used to limit the movement of the clamping assembly.

[0012] According to some embodiments of the utility model, the limiting structure includes two first limiting parts and two second limiting parts, the two first limiting parts respectively abut against the two side walls of one end of the clamping component in the length direction, and the two second limiting parts respectively abut against the two side walls of the other end of the clamping component in the length direction.

[0013] According to some embodiments of the utility model, the clamping assembly comprises two groups, the two groups of the clamping assemblies are arranged along the width direction of the battery cell, the clamping assembly extends along the width direction of the battery cell, the second limiting portion is located at one end where the two groups of the clamping assemblies are close to each other, an isolation wall is provided between the two second limiting portions of the limiting structure, the isolation wall abuts against the end face of the clamping assembly in the length direction, and the isolation wall is made of an electrically insulating material.

[0014] According to some embodiments of the utility model, an annular enclosure is provided on the upper surface of the mounting plate, all the clamping components are located on the inner side of the annular enclosure, and the two outermost battery cells are provided with a second pole lug, which is located on the outer side of the annular enclosure.

[0015] According to some embodiments of the present invention, the mounting plate is provided with a heat dissipation opening below the clamping assembly.

[0016] The battery according to the second embodiment of the present invention includes the battery cell module described in the first embodiment.

[0017] The battery according to the embodiment of the utility model has at least the following beneficial effects:

[0018] By adopting the battery cell module of the first embodiment of the utility model, when it is necessary to connect two adjacent battery cells of the battery cell module in series, the two first pole ears of the pole ear assembly are fitted together, and then the two clamping pieces of the clamping assembly are respectively fitted to the two first pole ears of the pole ear assembly on the opposite sides, and the two clamping pieces are connected by fasteners. The two clamping pieces can cooperate to clamp the two first pole ears of the pole ear assembly, so that the two first pole ears of the pole ear assembly are kept in a conductive state of mutual fit. In this way, not only the first pole ear connection is made more convenient, more time-saving and labor-saving, but also the connection is more firm, and in addition, there will be no situation where welding slag pierces the aluminum-plastic film, and the battery quality is better.

[0019] An electric two-wheeled vehicle according to an embodiment of the third aspect of the utility model comprises the battery described in the embodiment of the second aspect.

[0020] The electric two-wheeled vehicle according to the embodiment of the utility model has at least the following beneficial effects:

[0021] By adopting the battery described in the second embodiment of the utility model, when it is necessary to connect two adjacent cells of the cell module in series, the two first pole ears of the pole ear assembly are fitted together, and then the two clamping pieces of the clamping assembly are respectively fitted to the two first pole ears of the pole ear assembly on the opposite sides, and the two clamping pieces are connected by fasteners, and the two clamping pieces can cooperate to clamp the two first pole ears of the pole ear assembly, so that the two first pole ears of the pole ear assembly are kept in a conductive state of mutual fit. In this way, not only the first pole ear connection is made more convenient, more time-saving and labor-saving, but also the connection is more firm, and in addition, there will be no situation where welding slag pierces the aluminum-plastic film, and the battery quality is better.

[0022] Additional aspects and advantages of the present invention will be partially given in the following description, and some advantages will become apparent from the following description or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 This is a schematic diagram of the structure of a battery cell module according to an embodiment of the utility model;

[0025] Figure 2 is a schematic diagram of the installation of fasteners;

[0026] Figure 3 It is a schematic diagram of two adjacent battery cells connected in series;

[0027] Figure 4 for Figure 3 Explosion diagram of

[0028] Figure 5 for Figure 1Enlarged view of point A in the middle.

[0029] Figure Number:

[0030] Battery cell 100; tab assembly 101; first tab 102; bending portion 103; connecting hole 104; second tab 105;

[0031] Clamping assembly 200; clamping sheet 201; fastener 202;

[0032] Mounting plate 300; clearance groove 301; limiting structure 302; first limiting portion 303; second limiting portion 304; isolation wall 305; annular enclosure plate 306. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In the description of the present utility model, "a plurality" refers to two or more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] Reference below Figures 1 to 5 A battery cell module, a battery and an electric two-wheeled vehicle according to embodiments of the present invention are described.

[0038] According to the battery cell module of the first embodiment of the utility model, Figures 1 to 5 As shown, it includes a plurality of battery cells 100 and a plurality of clamping assemblies 200 .

[0039] A plurality of battery cells 100 are arranged side by side, and a tab assembly 101 is provided between two adjacent battery cells 100. The tab assembly 101 includes two first tabs 102 that fit together, and the two first tabs 102 are respectively connected to the two adjacent battery cells 100. Specifically, the battery cell 100 located in the middle is provided with two first tabs 102, and the two battery cells 100 located on the outermost sides may have one first tab 102. The battery cell 100 located in the middle fits with the corresponding first tabs 102 on the battery cells 100 adjacent to the two sides through the two first tabs 102 thereon, and the battery cell 100 located on the outermost side fits with the corresponding first tabs 102 on the adjacent battery cells 100 through the one first tab 102 thereon.

[0040] The number of clamping assemblies 200 can be the same as the number of pole ear assemblies 101 and correspond one to one. The clamping assembly 200 includes two clamping plates 201, and the two clamping plates 201 are respectively attached to the opposite sides of the two first pole ears 102 of the pole ear assembly 101. A fastener 202 is installed between the two clamping plates 201. The fastener 202 can be a blind rivet. The blind rivet has a stable connection and is easy to install. Of course, the fastener 202 can also be other structures, such as bolts, which will not be repeated here.

[0041] In the utility model, when two adjacent cells 100 of the cell module need to be connected in series, the two first pole tabs 102 of the pole tab assembly 101 are fitted together, and then the two clamping pieces 201 of the clamping assembly 200 are respectively fitted to the opposite sides of the two first pole tabs 102 of the pole tab assembly 101, and the two clamping pieces 201 are connected by the fastener 202, and the two clamping pieces 201 can cooperate to clamp the two first pole tabs 102 of the pole tab assembly 101, so that the two first pole tabs 102 of the pole tab assembly 101 are kept in a conductive state of mutual fitting. In this way, not only the connection of the first pole tab 102 is more convenient, more time-saving and labor-saving, but also the connection is more firm, and in addition, there will be no situation where welding slag pierces the aluminum-plastic film, and the battery quality is better.

[0042] refer to Figure 1 , Figure 2 and Figure 5 As shown, in some embodiments of the utility model, the battery cell module also includes a mounting plate 300, the battery cell 100 is located below the mounting plate 300, the clamping assembly 200 is attached to the top surface of the mounting plate 300, and the mounting plate 300 is provided with a plurality of clearance grooves 301, and the first pole ear 102 is inserted into the clearance grooves 301. The mounting plate 300 separates the pole ear assembly 101 in the clamping assembly 200 from the battery cell 100, which can reduce the risk of short circuit and improve safety. In addition, the first pole ear 102 is inserted into the clearance groove 301 and clamped by the clamping sheet 201, so that all the battery cells 100 can be connected to the mounting plate 300, thereby making the battery cell module structure more stable.

[0043] refer to Figure 3 and Figure 4 As shown, in some embodiments of the utility model, the ends of the two first pole tabs 102 of the same pole tab assembly 101 away from the battery cell 100 are bent in opposite directions to form a bent portion 103, the bent portion 103 is clamped between the two clamping pieces 201, and the bent portion 103 is provided with a connection hole 104 for the fastener 202 to pass through. In this embodiment, the first pole tab 102 is bent to form the bent portion 103, and the end surface of the bent portion 103 in the thickness direction can be parallel to the end surface of the mounting plate 300 in the thickness direction. The clamping piece 201 clamps the bent portion 103 of the two first pole tabs 102 of the pole tab assembly 101. Such a configuration not only makes it more convenient to clamp the clamping piece 201, but also can reduce the situation that the first pole tab 102 slips out of the clearance groove 301, and the assembly is more stable. In addition, the bent portion 103 is provided with a connection hole 104 for the fastener 202 to pass through, so that the connection between the two first pole tabs 102 is more stable.

[0044] refer to Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the mounting plate 300 is provided with a limiting structure 302 corresponding to the clamping assembly 200, and the limiting structure 302 is used to limit the movement of the clamping assembly 200. In this embodiment, the limiting structure 302 is provided to reduce the movement of the clamping assembly relative to the mounting plate 300, thereby making the structure of the battery module more stable.

[0045] refer to Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the limiting structure 302 includes two first limiting parts 303 and two second limiting parts 304, the two first limiting parts 303 respectively abut against the side walls of one end of the length direction of the clamping assembly 200, and the two second limiting parts 304 respectively abut against the side walls of the other end of the length direction of the clamping assembly 200. In this way, the clamping assembly 200 can be limited by the abutment of the first limiting part 303 and the second limiting part 304, and the friction between the first limiting part 303, the second limiting part 304 and the clamping assembly 200, the structure is simple, the limiting effect is good, and the limiting structure 302 is set in this way, so that the mounting hole for mounting the fastener 202 on the clamping assembly 200 is convenient to be quickly aligned with the connecting hole 104 on the bending part 103, so that the installation of the fastener 202 is simpler and more convenient, and the practicality is better.

[0046] refer to Figure 1 and Figure 2As shown, in some embodiments of the present utility model, the clamping assembly 200 includes two groups, the second limiting portion 304 is located at one end where the two groups of clamping assemblies 200 are close to each other, and a separation wall 305 is provided between the two second limiting portions 304, the separation wall 305 abuts against the end face of the clamping assembly 200 in the length direction, and the separation wall 305 is made of an electrically insulating material. In this embodiment, the separation wall 305 is provided, which can not only further limit the clamping assembly 200, but also cooperate with the first limiting portion 303 and the second limiting portion 304 to quickly align the mounting hole for installing the fastener 202 on the clamping assembly 200 with the connecting hole 104 on the bending portion 103, thereby making the installation of the fastener 202 simpler and more convenient. In addition, the separation wall 305 is made of an electrically insulating material, thereby ensuring sufficient electrical clearance and creepage distance, reducing leakage and short circuit phenomena, and having better safety.

[0047] refer to Figure 1 and Figure 2 As shown, in some embodiments of the utility model, the upper surface of the mounting plate 300 is provided with an annular enclosure 306, all the clamping assemblies 200 are located on the inner side of the annular enclosure 306, and the two outermost battery cells 100 are provided with a second pole lug 105, and the second pole lug 105 is located on the outer side of the annular enclosure 306. The two second pole lugs 105 can be connected to a total positive bus and a total negative bus, respectively, and the total positive bus and the total negative bus are connected to external wires. In this embodiment, an annular enclosure 306 is provided, and the annular enclosure 306 separates the first pole lug 102 in the clamping assembly 200 from the second pole lug 105 for connecting external wires, which can further reduce leakage and short circuit phenomena, and has better safety.

[0048] In some embodiments of the present invention, the mounting plate 300 is provided with a heat dissipation port below the clamping assembly 200. The heat dissipation port can dissipate heat from the tab assembly 101 in the clamping assembly 200 to avoid damage caused by excessive temperature. In addition, the weight of the mounting plate 300 can be reduced, thereby reducing the overall weight of the battery.

[0049] A battery according to an embodiment of the second aspect of the utility model includes the battery cell module of the embodiment of the first aspect.

[0050] For example, the battery may further include a box, and the battery cell module may be installed in the box.

[0051] By adopting the battery cell module of the first embodiment of the utility model, when it is necessary to connect two adjacent battery cells 100 of the battery cell module in series, the two first pole ears 102 of the pole ear assembly 101 are fitted together, and then the two clamping pieces 201 of the clamping assembly 200 are respectively fitted to the two first pole ears 102 of the pole ear assembly 101 on the opposite side, and the two clamping pieces 201 are connected by the fastener 202, and the two clamping pieces 201 can cooperate to clamp the two first pole ears 102 of the pole ear assembly 101, so that the two first pole ears 102 of the pole ear assembly 101 are kept in a conductive state of mutual fitting. In this way, not only the connection of the first pole ear 102 is made more convenient, more time-saving and labor-saving, but also the connection is more firm, and in addition, there will be no situation where welding slag pierces the aluminum-plastic film, and the battery quality is better.

[0052] It should be noted that, since the battery can adopt all the technical solutions of the battery cell module of the first embodiment above, it at least has all the beneficial effects brought by the technical solutions of the first embodiment above, and these additional beneficial effects will not be repeated here.

[0053] It is understandable that other structures and operations of the battery according to the embodiment of the present invention are known to ordinary technicians in the field and will not be described in detail here.

[0054] The electric two-wheeled vehicle according to the third embodiment of the utility model comprises the battery of the second embodiment.

[0055] According to the electric two-wheeled vehicle of the embodiment of the utility model, by adopting the battery of the second embodiment of the utility model, when it is necessary to connect two adjacent cells 100 of the battery cell module in series, the two first pole ears 102 of the pole ear assembly 101 are fitted together, and then the two clamping pieces 201 of the clamping assembly 200 are respectively fitted to the two first pole ears 102 of the pole ear assembly 101 on the opposite side, and the two clamping pieces 201 are connected by the fastener 202, and the two clamping pieces 201 can cooperate to clamp the two first pole ears 102 of the pole ear assembly 101, so that the two first pole ears 102 of the pole ear assembly 101 are kept in a conductive state of mutual fitting. In this way, not only the first pole ears 102 are connected more conveniently, more time-saving and labor-saving, but also the connection is more firm, in addition, there will be no situation where welding slag pierces the aluminum-plastic film, and the battery quality is better.

[0056] It should be noted that, since the electric two-wheeled vehicle can adopt all the technical solutions of the battery cell module of the first embodiment above, it at least has all the beneficial effects brought by the technical solutions of the first embodiment above, and these additional beneficial effects will not be repeated here.

[0057] It is understandable that other structures and operations of the electric two-wheeled vehicle according to the embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0058] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A battery cell module, characterized in that: include: A plurality of battery cells are arranged side by side, and a tab assembly is provided between two adjacent battery cells, wherein the tab assembly comprises two first tabs that fit together, and the two first tabs are respectively connected to the two adjacent battery cells; A plurality of clamping assemblies, wherein the clamping assemblies include two clamping plates, the two clamping plates are respectively attached to the opposite sides of the two first pole tabs of the pole tab assembly, and a fastener is installed between the two clamping plates.

2. The battery cell module according to claim 1, characterized in that: The battery module also includes: The mounting plate, the battery core is located below the mounting plate, the clamping assembly is attached to the top surface of the mounting plate, the mounting plate is provided with a plurality of clearance grooves, and the first pole lug is penetrated through the clearance grooves.

3. The battery cell module according to claim 2, characterized in that: The ends of the two first tabs of the tab assembly away from the battery core are bent in opposite directions to form bent portions, the bent portions are clamped between the two clamping pieces, and the bent portions are provided with connecting holes for the fasteners to pass through.

4. The battery cell module according to claim 2, characterized in that: The mounting plate is provided with a limiting structure corresponding to the clamping assembly, and the limiting structure is used to limit the movement of the clamping assembly.

5. The battery cell module according to claim 4, characterized in that: The limiting structure comprises: Two first limiting portions respectively abut against two side walls of one end of the clamping assembly in the length direction; The two second limiting portions respectively abut against the side walls on both sides of the other end of the clamping assembly in the length direction.

6. The battery cell module according to claim 5, characterized in that: The clamping assembly includes two groups, the two groups of clamping assemblies are arranged along the width direction of the battery cell, the clamping assembly extends along the width direction of the battery cell, the second limiting portion is located at one end where the two groups of clamping assemblies are close to each other, and an isolation wall is provided between the two second limiting portions of the limiting structure, the isolation wall abuts against the end face of the clamping assembly in the length direction, and the isolation wall is made of electrically insulating material.

7. The battery cell module according to any one of claims 2 to 6, characterized in that: An annular enclosure is provided on the upper surface of the mounting plate, all the clamping components are located on the inner side of the annular enclosure, and the two outermost battery cells are provided with a second pole lug, which is located on the outer side of the annular enclosure.

8. The battery cell module according to any one of claims 2 to 6, characterized in that: The mounting plate is provided with a heat dissipation opening below the clamping assembly.

9. A battery, characterized in that: Comprising the battery cell module as claimed in any one of claims 1 to 8.

10. An electric two-wheeled vehicle, characterized in that: Comprising the battery as claimed in claim 9.

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