Battery and electric two-wheeled vehicle

Abstract

According to the battery and the electric two-wheeled vehicle, a heat-conducting elastic part is independently arranged and has elasticity, a first abutting part and a second abutting part bend and extend in opposite directions, and large elastic deformation can be generated in the width direction of a battery cell, so that even if one side of the battery cell is not aligned, the two abutting parts can still tightly abut against the side edge of the battery cell and the inner wall of a box body, the heat conductivity is good, and the service life of the battery is prolonged. And moreover, the heat-conducting elastic piece can elastically buffer, so that the battery cell module can be prevented from being damaged due to overlarge impact force when the side wall of the box body is impacted. Meanwhile, the stress detection unit can detect the stress change of the heat-conducting elastic piece, and then the aging state of the heat-conducting elastic piece is determined according to the stress change, so that a rider can be reminded to replace the heat-conducting elastic piece in time when the heat-conducting elastic piece is aged, and better heat dissipation performance and anti-collision performance are continuously provided.

Description

Technical Field

[0001] This application relates to the field of two-wheeled vehicles, and more particularly to a battery-powered and electric two-wheeled vehicle. Background Technology

[0002] The battery of an electric two-wheeler consists of a casing and a cell module, with the latter housed within the casing and containing multiple cells arranged side-by-side. In existing technologies, to enhance heat dissipation, the sides of the cells are often attached to the side walls of the casing, or heat-conducting plates are added to assist in heat dissipation. However, in actual use, due to manufacturing and installation errors, the cells are difficult to align perfectly, resulting in poor contact between some cells and the casing side walls or heat-conducting plates, significantly reducing heat dissipation efficiency. Furthermore, when the casing side walls are impacted, the impact force can directly act on the cell module, posing a risk of damage. Utility Model Content

[0003] This application aims to provide a battery and an electric two-wheeler that can improve the heat dissipation of the battery cells.

[0004] The battery provided in the first aspect embodiment of this application includes:

[0005] Box;

[0006] The battery cell module is located inside the housing, and the battery cell module includes multiple battery cells arranged side by side.

[0007] Two heat dissipation components are disposed within the housing and located on opposite sides of the battery cell module. Each heat dissipation component includes a mounting bracket and multiple thermally conductive elastic elements. The mounting bracket is installed within the housing and extends along the arrangement direction of the multiple battery cells. The multiple thermally conductive elastic elements are disposed on the mounting bracket and arranged along the extension direction of the mounting bracket. The thermally conductive elastic elements are provided with a first abutment portion and a second abutment portion on both sides of the extension direction of the mounting bracket. The first abutment portion and the second abutment portion of the same thermally conductive elastic element bend downward or upward in a direction away from each other. The multiple first abutment portions are respectively used to abut against the side edges of the multiple battery cells in the width direction, and the multiple second abutment portions are used to abut against the inner sidewall of the housing.

[0008] A stress detection unit is disposed on the surface of any of the thermally conductive elastic elements and is used to detect the stress of the thermally conductive elastic elements;

[0009] The control unit is electrically connected to the stress detection unit.

[0010] The electric two-wheeled vehicle provided in the second aspect of this application includes the battery described in the first aspect of the embodiment.

[0011] The battery and electric two-wheeler of this application embodiment feature a separately designed and elastic thermally conductive elastic component. The first and second abutment portions bend and extend in opposite directions, allowing for significant elastic deformation along the width of the battery cell. This ensures that even if one side of the battery cell is misaligned, the two abutment portions remain firmly against the side of the battery cell and the inner wall of the casing, resulting in excellent thermal conductivity and improved battery heat dissipation. Furthermore, the thermally conductive elastic component provides elastic cushioning, preventing damage to the battery cell module from excessive impact when the casing side wall is struck. Simultaneously, a stress detection unit can detect stress changes in the thermally conductive elastic component, thereby determining its aging state. This allows for timely reminders to the rider to replace the thermally conductive elastic component when it ages, ensuring continued improvement in heat dissipation and impact resistance.

[0012] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing this application. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0014] Figure 1 This is an electrical system diagram of the battery according to an embodiment of this application;

[0015] Figure 2 This is an explosion diagram of the battery according to an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the heat dissipation assembly according to an embodiment of the present invention;

[0017] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0018] Heat dissipation assembly 10; mounting bracket 100; mounting base 101; mounting rod 102; first plate 103; second plate 104; first oblong hole 105; connecting plate 106; first fastener 107; second oblong hole 108; rod unit 109;

[0019] Housing 20; Thermally conductive elastic element 200; First abutment part 201; Second abutment part 202; Slot 203;

[0020] Battery module 30; Battery cell 300;

[0021] Control unit 401; stress detection unit 402; temperature sensor 403; air pressure detection unit 404; alarm module 405. Detailed Implementation

[0022] The embodiments of this application are described in detail below. Examples of the 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 application, and should not be construed as limiting this application.

[0023] In the description of this application, the use of terms such as "first," "second," etc., is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0024] In the description of this application, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0025] In the description of this application, it should be noted that, unless otherwise explicitly defined, terms such as "setup," "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 application in conjunction with the specific content of the technical solution.

[0026] The technical solution of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are some embodiments of this application, not all embodiments.

[0027] The following is for reference. Figures 1 to 4 This application describes a battery and an electric two-wheeled vehicle according to embodiments thereof.

[0028] like Figures 1 to 3 As shown, the battery in this embodiment of the application includes:

[0029] Box 20;

[0030] The battery cell module 30 is located inside the housing 20, and the battery cell module 30 includes a plurality of battery cells 300 arranged side by side.

[0031] Two heat dissipation components 10 are both disposed inside the housing 20 and located on opposite sides of the battery cell module 30. Each heat dissipation component 10 includes a mounting bracket 100 and multiple thermally conductive elastic elements 200. The mounting bracket 100 is installed inside the housing 20 and extends along the arrangement direction of the multiple battery cells 300. The multiple thermally conductive elastic elements 200 are disposed on the mounting bracket 100 and arranged along the extension direction of the mounting bracket 100. The thermally conductive elastic elements 200 are respectively provided with a first abutment portion 201 and a second abutment portion 202 on both sides of the extension direction of the mounting bracket 100. The first abutment portion 201 and the second abutment portion 202 of the same thermally conductive elastic element 200 bend downward or upward in a direction away from each other. The multiple first abutment portions 201 are respectively used to abut against the side of the multiple battery cells 300 in the width direction, and the multiple second abutment portions 202 are used to abut against the inner sidewall of the housing 20.

[0032] The stress detection unit 402 is disposed on the surface of any thermally conductive elastic element 200 and is used to detect the stress of the thermally conductive elastic element 200.

[0033] The control unit 401 is electrically connected to the stress detection unit 402.

[0034] In this embodiment, because the thermally conductive elastic element 200 is separately configured and elastic, the first and second abutment portions bend and extend in opposite directions, allowing for significant elastic deformation along the width of the cell 300. This ensures that even if one side of the cell 300 is not aligned, the two abutment portions can still firmly abut against the side of the cell 300 and the inner wall of the housing 20, resulting in excellent thermal conductivity and improved battery heat dissipation. Furthermore, the thermally conductive elastic element 200 provides elastic cushioning, preventing damage to the cell module 30 due to excessive impact when the side wall of the housing 20 is struck. Simultaneously, the stress detection unit 402 can detect stress changes in the thermally conductive elastic element 200, thereby determining its aging state. This allows for timely reminders to riders to replace the thermally conductive elastic element 200 when it ages, ensuring continued better heat dissipation and impact resistance.

[0035] The aforementioned thermally conductive elastic element 200 can be made of thermally conductive rubber, thermally conductive silicone, or other suitable thermally conductive elastic materials.

[0036] The aforementioned control unit 401 can directly use the core controller of the battery management system, or it can use a separate controller. The specific usage method can be selected based on actual control needs, cost and other factors.

[0037] The aforementioned stress detection unit 402 can detect the stress on the surface of the elastic thermally conductive component. In actual operation, to better determine whether the stress has changed, the stress can be detected when the electric two-wheeler is stationary, thus avoiding the influence of factors such as bumps during the movement of the electric two-wheeler on the stress detection results. It is understandable that for materials such as thermally conductive rubber, when aging occurs, the stress in the same area will increase or decrease significantly. By judging whether the stress change value exceeds a preset threshold, it can be determined whether an abnormal stress has occurred.

[0038] In some embodiments, the stress detection unit 402 includes a stress detection plate electrically connected to the control unit 401.

[0039] In this embodiment, a stress testing sheet is used as the stress testing unit 402. Some stress testing sheets are inexpensive, and the inexpensive products are sufficient to meet the needs of stress testing, making them suitable for industrial promotion.

[0040] The stress testing piece mentioned above can be a resistance stress testing piece, or other types of testing pieces can be selected according to actual needs.

[0041] The stress detection unit 402 mentioned above can be selected from other types of stress detection products according to actual needs.

[0042] In some embodiments, there are multiple stress detection units 402, and the multiple stress detection units 402 are respectively disposed on different thermally conductive elastic elements 200.

[0043] In this embodiment, by setting multiple stress detection units 402, stress detection can be performed on different thermally conductive elastic components 200, avoiding the risk of missed detection caused by a single stress detection unit 402. It is understood that when multiple stress detection units 402 are present, any stress detection unit 402 detecting an abnormal stress should trigger an alarm through the alarm module 405.

[0044] In some implementations, reference Figure 1 The battery also includes a temperature sensor 403 electrically connected to the control unit 401, which is used to detect the temperature inside the housing 20.

[0045] The aforementioned temperature sensor 403, by detecting the temperature inside the housing 20, can better utilize the stress detection unit 402 to complete the stress detection judgment. Specifically, temperature also affects the stress of the product. If the judgment is made directly based on the stress detection results when the electric two-wheeler is stationary, it is easy to make mistakes due to the different temperatures of the thermally conductive elastic component 200. Therefore, in addition to the static condition, the constraint condition of the same temperature or within the allowable deviation range can be added to determine the stress deviation, thereby further improving the accuracy of judging the aging degree of the thermally conductive elastic component 200 based on stress.

[0046] In some implementations, in order to better utilize stress testing to determine the degree of aging of the thermally conductive elastic component 200, the standard stress values ​​of the thermally conductive elastic component 200 in different temperature ranges when the electric vehicle is stationary are detected in advance. In this case, it is not necessary to perform stress testing to determine aging only when the electric two-wheeler has been parked for a long time. Instead, the standard stress value of the corresponding temperature range can be quickly determined directly based on the current temperature of the thermally conductive elastic component 200 after the vehicle stops. Then, the stress difference can be determined using the currently detected stress value.

[0047] It should be noted that, in addition to assisting in the determination of the degree of aging, the temperature sensor 403 can also be used directly for over-temperature warning. For example, when the temperature exceeds the safe temperature threshold, the alarm module 405 will issue an alarm to allow the rider to stop and move away as soon as possible to avoid the battery burning or exploding and causing injury to people.

[0048] In some embodiments, there are multiple temperature sensors 403, which are disposed in different areas within the housing 20, with at least one temperature sensor 403 disposed near the thermally conductive elastic element 200.

[0049] In this embodiment, multiple temperature sensors 403 are provided, with at least one located close to the thermally conductive elastic element 200. This not only improves the accuracy of detecting the aging degree of the thermally conductive elastic element 200, but also enables accurate detection of the temperature inside the chamber 20, thus providing early warning of overheating.

[0050] In some implementations, reference Figure 1 The battery also includes:

[0051] The air pressure detection unit 404 is electrically connected to the control unit 401 and is installed inside the housing 20 to detect the air pressure inside the housing 20.

[0052] The aforementioned air pressure detection unit 404 can be installed in any area inside the enclosure 20. The control unit 401 can determine whether the air pressure is abnormal and issue an alarm by acquiring the air pressure data inside the enclosure 20 collected by the air pressure detection unit 404. For example, an alarm can be issued if the air pressure exceeds a preset safe air pressure threshold.

[0053] The aforementioned air pressure detection unit 404 can directly use commonly available pressure detection sensors.

[0054] In some implementations, reference Figure 1 The battery also includes:

[0055] The alarm module 405 is electrically connected to the control unit 401.

[0056] The alarm module 405 mentioned above can sound an alarm independently, so that riders can be aware of the risks as early as possible and avoid dangerous situations.

[0057] The alarm module 405 can directly adopt an audible and visual alarm device. The audible and visual alarm device can be directly electrically connected to the control unit 401, or an audible and visual alarm device with Bluetooth connection can be used to connect to the control unit 401 via Bluetooth.

[0058] In addition, when the control unit 401 is connected to a wireless communication module, an alarm can also be triggered by sending a message to the rider's smart terminal.

[0059] In some implementations, reference Figure 4 The outer side of the first abutment 201 is provided with a slot 203, and the slot 203 is inserted into the side of the power supply core 300 in the width direction.

[0060] The first contact portion 201 can be inserted into the side of the cell 300 in the width direction through the slot 203, so that the contact between the cell 300 and the thermally conductive elastic element 200 is closer, the contact area is larger, the thermal conductivity is better, and thus the heat dissipation effect of the battery is better.

[0061] In some implementations, reference Figure 3 , Figure 4 The bottom of slot 203 is designed to extend through the slot. This design makes it easier to insert the battery cell 300 into slot 203 from the side in the width direction.

[0062] In some embodiments, the mounting bracket 100 includes:

[0063] Two mounting bases 101 are used to connect to the two opposite side walls of the housing 20, respectively;

[0064] The mounting rod 102 is connected to two mounting bases 101 at both ends. The thermally conductive elastic element 200 is provided with a sleeve hole and is slidably sleeved on the mounting rod 102 through the sleeve hole.

[0065] In this embodiment, the thermally conductive elastic element 200 is provided with a sleeve hole and is slidably sleeved on the mounting rod 102 through the sleeve hole. In this way, the position of the thermally conductive elastic element 200 can be appropriately adjusted according to the distance between two adjacent battery cells 300, so that the position of the thermally conductive elastic element 200 and the corresponding battery cell 300 are more adapted, thereby making the contact and insertion effect between the thermally conductive elastic element 200 and the corresponding battery cell 300 better, the contact between the battery cell 300 and the thermally conductive elastic element 200 is tighter, the heat conduction effect is better, and thus the heat dissipation effect of the battery is better.

[0066] In some implementations, reference Figure 3 As shown, the mounting base 101 includes a first plate 103 and a second plate 104. The first plate 103 can be vertically arranged and is used to be attached to the side wall of the housing 20. The second plate 104 can be connected to the top of the first plate 103. The second plate 104 is provided with a first oblong hole 105. The first oblong hole 105 extends along the length direction of the mounting rod 102. The two ends of the mounting rod 102 are respectively provided with connecting plates 106. The connecting plates 106 are attached to the top surface of the second plate 104, and a first fastener 107 is installed between the connecting plates 106 and the second plate 104. The first fastener 107 passes through the first oblong hole 105.

[0067] In this embodiment, the mounting base 101 is provided with a first plate 103 for easy connection to the side wall of the housing 20. The mounting base 101 is provided with a second plate 104, and the second plate 104 is provided with a first oblong hole 105. The mounting rod 102 is provided with a connecting plate 106 for easy connection between the mounting rod 102 and the mounting base 101 via a first fastener 107. Moreover, the first oblong hole 105 extends along the length direction of the mounting rod 102, so that the mounting rod 102 can be appropriately adjusted along its own length direction, thereby making the position of the thermally conductive elastic element 200 and the corresponding battery cell 300 more compatible, and the contact and insertion effect between the thermally conductive elastic element 200 and the corresponding battery cell 300 better. This results in a tighter contact between the battery cell 300 and the thermally conductive elastic element 200, better heat conduction, and thus better heat dissipation of the battery.

[0068] In some implementations, reference Figure 3 As shown, the first plate 103 is provided with a second oblong hole 108. The second oblong hole 108 extends in the horizontal direction and the extension direction of the second oblong hole 108 is perpendicular to the extension direction of the first oblong hole 105. The first plate 103 is connected to the side wall of the housing 20 by a second fastener. The second oblong hole 108 is for the second fastener to pass through.

[0069] In this embodiment, the first plate 103 is provided with a second oblong hole 108, which facilitates the connection between the first plate 103 and the side wall of the housing 20 through a second fastener. Moreover, the second oblong hole 108 extends horizontally, and the extension direction of the second oblong hole 108 is perpendicular to the extension direction of the first oblong hole 105. In this way, the position of the heat dissipation component 10 can be appropriately adjusted along the width direction of the cell 300, so that the first abutting part 201 of the thermally conductive elastic member 200 abuts the corresponding cell 300 more appropriately, and the second abutting part 202 of the thermally conductive elastic member 200 abuts the side wall of the housing 20 more appropriately, thereby improving the heat conduction effect and thus improving the heat dissipation effect of the battery.

[0070] In some implementations, reference Figure 3 As shown, the thermally conductive elastic element 200 and the mounting rod 102 are fixed relative to each other along the circumference of the mounting rod 102. For example, the cross-section of the mounting rod 102 in the longitudinal direction can be polygonal, and the sleeve hole can be a polygonal hole.

[0071] In this way, the thermally conductive elastic element 200 can be prevented from rotating freely relative to the mounting rod 102, thereby reducing the contact effect between the first contact part 201 and the cell 300 and the contact effect between the second contact part 202 and the side wall of the housing 20, resulting in better thermal conductivity and thus better heat dissipation of the battery.

[0072] In some implementations, reference Figure 3 As shown, the mounting rod 102 includes two rod units 109, with their adjacent ends interlocked. When the two rod units 109 are separated, the thermally conductive elastic element 200 can be removed from the adjacent ends of the two rod units 109. For example, one of the adjacent ends of the two rod units 109 may have a socket, and the other may have a plug, which is inserted into the socket.

[0073] When it is necessary to clean, repair, replace, or increase or decrease the quantity of the thermally conductive elastic element 200, the two rod units 109 are separated from each other. Then the thermally conductive elastic element 200 can be removed from the end of the two rod units 109 that are close to each other, which makes it convenient to clean, repair, replace, or increase or decrease the quantity of the thermally conductive elastic element 200, and improves its practicality.

[0074] This application also provides an electric two-wheeled vehicle, which includes the battery described above.

[0075] It should be noted that since electric two-wheeled vehicles can adopt all the above-mentioned battery technologies, they have at least all the beneficial effects brought about by the above-mentioned battery technologies. These additional beneficial effects will not be elaborated here.

[0076] It should be clarified that this application is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of this application is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of this application.

[0077] The above are merely specific embodiments of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A battery, characterized in that, include: Box; The battery cell module is located inside the housing, and the battery cell module includes multiple battery cells arranged side by side. Two heat dissipation components are disposed within the housing and located on opposite sides of the battery cell module. Each heat dissipation component includes a mounting bracket and multiple thermally conductive elastic elements. The mounting bracket is installed within the housing and extends along the arrangement direction of the multiple battery cells. The multiple thermally conductive elastic elements are disposed on the mounting bracket and arranged along the extension direction of the mounting bracket. The thermally conductive elastic elements are provided with a first abutment portion and a second abutment portion on both sides of the extension direction of the mounting bracket. The first abutment portion and the second abutment portion of the same thermally conductive elastic element bend downward or upward in a direction away from each other. The multiple first abutment portions are respectively used to abut against the side edges of the multiple battery cells in the width direction, and the multiple second abutment portions are used to abut against the inner sidewall of the housing. A stress detection unit is disposed on the surface of any of the thermally conductive elastic elements and is used to detect the stress of the thermally conductive elastic elements; The control unit is electrically connected to the stress detection unit.

2. The battery according to claim 1, characterized in that, The stress detection unit includes a stress detection plate that is electrically connected to the control unit.

3. The battery according to claim 2, characterized in that, There are multiple stress detection units, and each stress detection unit is respectively disposed on a different thermally conductive elastic element.

4. The battery according to claim 1, characterized in that, The battery also includes a temperature sensor electrically connected to the control unit, the temperature sensor being used to detect the temperature inside the housing.

5. The battery according to claim 4, characterized in that, There are multiple temperature sensors, which are disposed in different areas of the housing, with at least one temperature sensor disposed close to the thermally conductive elastic element.

6. The battery according to claim 1, characterized in that, The battery also includes: An air pressure detection unit, electrically connected to the control unit and installed inside the box, is used to detect the air pressure inside the box.

7. The battery according to claim 1, characterized in that, The battery also includes: The alarm module is electrically connected to the control unit.

8. The battery according to claim 1, characterized in that, The outer side of the first abutment portion is provided with a slot for the side of the battery cell to be inserted in the width direction.

9. The battery according to claim 1, characterized in that, The mounting bracket includes: Two mounting brackets are used to connect to the two opposite side walls of the housing, respectively; The mounting rod has two ends connected to the two mounting bases respectively. The thermally conductive elastic element has a sleeve hole and is slidably fitted onto the mounting rod through the sleeve hole.

10. An electric two-wheeled vehicle, characterized in that, Includes the battery as described in any one of claims 1 to 9.

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