Battery device and electronic equipment
By combining a support frame, a distance detection device, and a deformation component, the risk of puncture in cell expansion detection is solved, enabling safety performance monitoring and lifespan extension of the battery device without occupying additional space.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-10
AI Technical Summary
In existing technologies, there is a risk of puncturing the battery cell during cell expansion detection, and the safety performance of the battery device cannot be effectively monitored.
The system employs a combination structure of support frame, distance detection device and deformation component. It monitors cell expansion by detecting changes in the position of deformation component, thereby reducing the risk of cell puncture. It also adjusts the charge and discharge rate through a control device to improve battery safety.
It enables accurate detection of cell expansion, reduces the risk of cell puncture, and improves the safety performance and lifespan of the battery device, without increasing the thickness of the battery device.
Smart Images
Figure CN223986597U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of batteries, and more particularly to a battery device and an electronic device. Background Technology
[0002] With the increasing demand for electronic devices, battery performance is receiving more and more attention. Batteries expand after repeated charging and discharging, and in some extreme cases, this can lead to unstable chemical properties and pose safety risks.
[0003] In related technologies, pressure sensors are attached to the surface of the battery cell to detect its expansion. However, since the protective layer on the surface of the battery cell is a soft aluminum-plastic film, the pressure sensor attached to the surface of the battery cell may puncture the battery cell as it expands. Utility Model Content
[0004] This application discloses a battery device and electronic device that can reduce the risk of puncturing the battery cell while realizing cell expansion detection.
[0005] In a first aspect, embodiments of this application disclose a battery device, comprising: a support frame, a first battery cell, a first distance detection device, and a first deformation member, wherein: the first battery cell is disposed in a first region of the support frame, and a first portion of the first battery cell is located on a first surface of the support frame; the first distance detection device is disposed in a second region of the support frame, and the first distance detection device is disposed on a first surface of the support frame; the first deformation member is stacked on the first surface of the support frame and covers the first portion of the first battery cell and the first distance detection device.
[0006] Secondly, embodiments of this application disclose an electronic device including the battery device described in the first aspect.
[0007] This application provides a battery device including a support frame, a first battery cell, a first distance detection device, and a first deformation member. The first battery cell is disposed in a first region of the support frame, and a first portion of the first battery cell is located on a first surface of the support frame. The first distance detection device is disposed in a second region of the support frame, and the first distance detection device is located on a first surface of the support frame. The first deformation member is stacked on the first surface of the support frame and covers the first portion of the first battery cell and the first distance detection device. When the first battery cell expands, the position of the first deformation member changes. The first distance detection device determines the expansion data of the first battery cell based on the distance from the first distance detection device itself to the first deformation member, which can reduce the risk of puncturing the battery cell while realizing the expansion detection of the battery cell. Attached Figure Description
[0008] Figure 1This is an exploded view of a battery device disclosed in an embodiment of this application;
[0009] Figure 2 This is a schematic diagram of the front side of a circuit board disclosed in an embodiment of this application;
[0010] Figure 3 This is a schematic diagram of the back side of a circuit board disclosed in an embodiment of this application;
[0011] Figure 4 This is a partial cross-sectional view of a battery device disclosed in an embodiment of this application. Detailed Implementation
[0012] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0013] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0014] This application discloses a battery device and an electronic device. Figure 1 This is a schematic diagram of the structure of a battery device disclosed in an embodiment of this application.
[0015] like Figure 1 As shown, the battery device disclosed in this application includes: a support frame 110, a first battery cell 120, a first distance detection device 130, and a first deformation member 140, wherein: the first battery cell 120 is disposed in a first region of the support frame 110, and a first portion of the first battery cell 120 is located on a first surface of the support frame 110; the first distance detection device 130 is disposed in a second region of the support frame 110, and the first distance detection device 130 is disposed on a first surface of the support frame; the first deformation member 140 is stacked on the first surface of the support frame 110 and covers the first portion of the first battery cell 120 and the first distance detection device 130.
[0016] The support frame 110 in this application can be a plastic frame, and the first region and the second region can be two adjacent regions on the support frame 110. The battery cell in this application will expand after multiple charge-discharge cycles. The first distance detection device 130 is used to detect the distance from itself to the first deformable element 140.
[0017] Using the battery device of this application, after the first cell 120 has undergone multiple charge-discharge cycles, it begins to expand and exert pressure on the first deformable member 140, causing the position of the first deformable member 140 to move. The first distance detection device 130 can sensitively detect the change in position of the first deformable member 140 and determine the expansion data of the first cell 120 based on the distance between the first distance detection device 130 itself and the first deformable member 140.
[0018] This application provides a battery device including a support frame 110, a first battery cell 120, a first distance detection device 130, and a first deformation member 140. The first battery cell 120 is disposed in a first region of the support frame 110, and a first portion of the first battery cell 120 is located on a first surface of the support frame 110. The first distance detection device 130 is disposed in a second region of the support frame 110, and the first deformation member 140 is disposed on a first surface of the support frame 110. The first deformation member 140 is stacked on the first surface of the support frame 110 and covers the first portion of the first battery cell 120 and the first distance detection device 130. When the first battery cell 120 expands, the position of the first deformation member 140 changes. The first distance detection device 130 determines the expansion data of the first battery cell 120 based on the distance from the first distance detection device 130 itself to the first deformation member 140, which can reduce the risk of puncturing the battery cell while realizing the expansion detection of the battery cell.
[0019] The battery device in this application can actively detect cell expansion data, enabling continuous monitoring of the battery device's safety performance throughout its service life. Furthermore, the solution in this application does not increase the thickness of the battery device, thus avoiding the need to occupy more space.
[0020] In one implementation, such as Figure 1 As shown, the battery device may further include a second cell 150, which is disposed in the third region of the support frame 110, with a first portion of the second cell 150 located on the first surface of the support frame 110. A first deformable element 140 also covers the first portion of the second cell 150, and the second region is located between the first and third regions. After multiple charge-discharge cycles, the second cell 150 begins to expand and exert pressure on the first deformable element 140, causing the position of the first deformable element 140 to shift.
[0021] This application establishes a first distance detection device 130 between a first battery cell 120 and a second battery cell 150. A first deformable element 140 covers a first portion of the first battery cell 120, the first distance detection device 130, and the first portion of the second battery cell 150. When the first battery cell 120 and the second battery cell 150 expand, pressure is applied to the first deformable element 140, causing its position to shift. The first distance detection device 130 determines the battery cell expansion data based on the distance from itself to the first deformable element 140. By adopting this solution, since the battery cells on both sides of the first distance detection device 130 expand and apply pressure to the first deformable element 140, uniformly lifting the first deformable element 140, the accuracy of battery cell expansion data detection can be improved.
[0022] In one implementation, the battery device may further include a control device, with the first distance detection device 130 electrically connected to the control device. That is, after detecting the distance data between itself and the first deformation member 140, the first distance detection device 130 can send this distance data to the control device. The control device then determines the cell expansion data based on this distance data. Furthermore, after determining the cell expansion data, the control device can adjust the charge / discharge rate of the battery device based on the cell expansion data, thereby effectively slowing down the performance degradation of the battery device and improving its lifespan and safety performance. Additionally, the control device can also determine whether the detected cell expansion data exceeds a threshold. If the threshold is exceeded, a safety warning is issued to improve safety during use.
[0023] In addition, the control device can also send the detected cell expansion data to the electronic equipment system equipped with the battery device to achieve real-time monitoring.
[0024] In one implementation, such as Figure 1 As shown, the aforementioned battery device may further include a circuit board 160, which is disposed in the second region. The first distance detection device 130 and the control device are disposed on the circuit board 160. That is, the circuit board 160 provides a mounting base for the first distance detection device 130 and the control device. The circuit board 160 can be fixed to the support frame 110 with screws to improve the accuracy of detection.
[0025] In one implementation, such as Figure 1As shown, the aforementioned battery device may further include a second distance detection device 170 and a second deformation member 180, wherein: the second portion of the first cell 120 is located on the second surface of the support frame 110, wherein the second surface of the support frame 110 is the surface opposite to the first surface of the support frame 110; the second distance detection device 170 is disposed in the second region and on the second surface of the support frame 110; the second deformation member 180 is stacked on the second surface of the support frame 110 and covers the second portion of the first cell 120 and the second distance detection device 170. In other words, this application simultaneously detects the expansion data of both sides of the cell, effectively improving the accuracy of cell expansion data detection.
[0026] In this application, as Figure 2 and Figure 3 As shown, the first distance detection device 130 and the second distance detection device 170 can be respectively disposed on both sides of the circuit board 160.
[0027] Furthermore, in the case including the second cell 150, the second portion of the second cell 150 is located on the second surface of the support frame 110, the second distance detection device 170 is located between the first cell 120 and the second cell 150, and the second deformation member 180 covers the second portion of the first cell 120, the second distance detection device 170, and the second portion of the second cell 150. Since the cells on both sides of the second distance detection device 170 will expand and apply pressure to the second deformation member 180, the second deformation member 180 is uniformly lifted, which can improve the accuracy of cell expansion data detection.
[0028] In the embodiments of this application, such as Figure 4 As shown, the battery device may further include a shield 190, which surrounds the first distance detection device 130 and has a height higher than that of the first distance detection device 130.
[0029] The shield 190 in this application is equivalent to a cover without a top. By surrounding the first distance detection device 130 with the shield 190, and with the height of the shield 190 being higher than the height of the first distance detection device 130, the first distance detection device 130 is prevented from sending signals in all directions, thus ensuring the signal transmission direction of the first distance detection device 130 and improving the accuracy of cell expansion data detection.
[0030] For example, the shield 190 and the first distance detection device 130 may be spaced 1-2 mm apart.
[0031] It should be noted that, as Figure 4As shown, when the second distance detection device 170 is included, a shield 190 may also be arranged around the periphery of the second distance detection device 170. The specific arrangement is similar to that of the first distance detection device 130, and will not be repeated here.
[0032] In one implementation, the first distance detection device 130 may include an ultrasonic ranging sensor, utilizing the non-destructive, high-sensitivity, low-cost, and rapid detection characteristics of ultrasonic technology to detect cell expansion data. Alternatively, the first distance detection device 130 may also include devices capable of distance measurement, such as infrared ranging sensors, laser ranging sensors, or millimeter-wave sensors.
[0033] It should be noted that, when the second distance detection device 170 is included, the specific structure of the second distance detection device 170 can be the same as that of the first distance detection device 130, and will not be repeated here.
[0034] In one implementation, the first deformable element 140 may include a steel sheet. The steel sheet has excellent corrosion resistance and machinability, making it suitable for long-term use in harsh environments. For example, the steel sheet may be a SUS304 stainless steel sheet.
[0035] It should be noted that, in the case of including the second deformation element 180, the second deformation element 180 can also be a steel sheet.
[0036] In one implementation, the first deformable element 140 can be interference-fitted with the support frame 110. Since the first deformable element 140 and the support frame 110 are interference-fitted, the first deformable element 140 will face upwards as a whole when the cell expands, which can improve the accuracy of expansion data measurement.
[0037] It should be noted that, in the case of including the second deformation element 180, the second deformation element 180 can also be interference-fitted with the support frame 110. When the cell expands, the second deformation element 180 is oriented downwards as a whole, thereby improving the accuracy of expansion data measurement.
[0038] This application also discloses an electronic device that includes the battery device described above.
[0039] For example, the electronic device in this application may be a laptop computer.
[0040] By adopting the solution of this application, it is possible to achieve real-time detection of cell expansion data inside electronic devices.
[0041] The above embodiments of this application focus on describing the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be described in detail here.
[0042] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.
Claims
1. A battery device, characterized in that, The battery device comprises: a support frame, a first battery cell, a first distance detection device, and a first deformation member, wherein: the first battery cell is arranged in a first region of the support frame, and a first part of the first battery cell is located on a first surface of the support frame; the first distance detection device is arranged in a second region of the support frame, and the first distance detection device is arranged on the first surface of the support frame; the first deformation member is superposed with the first surface of the support frame, and covers the first part of the first battery cell and the first distance detection device.
2. The battery device according to claim 1, characterized by The battery device further comprises a second battery cell, the second battery cell is arranged in a third region of the support frame, and a first part of the second battery cell is located on the first surface of the support frame, the first deformation member further covers the first part of the second battery cell, and the second region is located between the first region and the third region.
3. The battery device of claim 1, wherein The battery device further comprises a control device, and the first distance detection device is electrically connected to the control device.
4. The battery device of claim 3, wherein The battery device further comprises a circuit board, the circuit board is arranged in the second region, and the first distance detection device and the control device are arranged on the circuit board.
5. The battery device of claim 1, wherein The battery device further comprises a second distance detection device and a second deformation member, wherein: a second part of the first battery cell is located on a second surface of the support frame, wherein the second surface of the support frame is opposite to the first surface of the support frame; the second distance detection device is arranged in the second region, and the second distance detection device is arranged on the second surface of the support frame; the second deformation member is superposed with the second surface of the support frame, and covers the second part of the first battery cell and the second distance detection device.
6. The battery device of claim 1, wherein The battery device further comprises a shielding member, the shielding member surrounds the first distance detection device, and a height of the shielding member is higher than a height of the first distance detection device.
7. The battery device of claim 1, wherein The first distance detection device comprises an ultrasonic distance measurement sensor.
8. The battery device of claim 1, wherein The first deformation member comprises a steel sheet.
9. The battery device according to any one of claims 1 to 8, characterized by, The first deformation member is assembled with the support frame in interference fit.
10. An electronic device, comprising: The battery device comprises any one of claims 1 to 9.