Electronic device

Abstract

The electronic equipment comprises a shell (10), a battery (20), a sealing bag (30) and a detection device (40), the battery (20) is arranged in the shell (10), a containing gap (50) is formed between the battery (20) and the shell (10), the sealing bag (30) is filled with fluid, the sealing bag (30) is arranged in the containing gap (50) and at least makes contact with the battery (20), and the detection device (40) is arranged in the shell (10). And when the bulging deformation amount of the battery (20) exceeds a preset deformation amount threshold value, the battery (20) is used for extruding the sealing bag (30) to enable the sealing bag (30) to trigger the detection device (40). According to the scheme, the problem of potential safety hazards caused by the fact that a user is difficult to perceive when the battery of the electronic equipment involved in the related technology is swelled can be solved.

Description

Technical Field

[0001] This application belongs to the field of electronic device design technology, and specifically relates to an electronic device. Background Technology

[0002] Currently, electronic devices (such as mobile phones, tablets, and game consoles) are equipped with batteries and powered by them. Batteries are prone to bulging after a period of use. For example, under conditions of over-discharge, over-charge, prolonged storage at high temperatures, or use at high temperatures, the internal material structure of the battery is easily damaged, leading to bulging. Because battery bulging is a slow process, it is difficult for users to detect in its early stages. Often, it is only discovered when the battery has bulged to a considerable extent, causing obvious deformation or even damage.

[0003] If a battery swells, it indicates a significant safety hazard. Continued use in this condition could lead to even greater danger. Timely detection of battery swelling improves the safety performance of electronic devices. Therefore, how to promptly detect battery swelling is a crucial technical problem that engineers in the field urgently need to solve. Summary of the Invention

[0004] This invention discloses an electronic device to solve the safety hazard problem caused by the difficulty for users to detect when the battery of an electronic device swells.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] This invention discloses an electronic device, which includes a housing, a battery, a sealing bag, and a detection device. The battery is disposed inside the housing, and a receiving gap is formed between the battery and the housing. The sealing bag is filled with fluid and is disposed in the receiving gap, and is at least in contact with the battery. When the swelling deformation of the battery exceeds a preset deformation threshold, the battery is used to squeeze the sealing bag to trigger the detection device.

[0007] The technical solution adopted in this invention can achieve the following technical effects:

[0008] The electronic device disclosed in this application improves the structure of the electronic device so that a receiving gap is formed between the battery installed inside the housing and the housing, and a sealed bag filled with fluid is placed in the receiving gap and at least in contact with the battery. With this structure, when the expansion and deformation of the battery exceeds a preset deformation threshold, the battery squeezes the sealed bag to trigger a detection device. When the detection device is triggered, it indicates that the battery in the electronic device has bulged and there is a safety hazard. Ultimately, it can remind the user to repair or replace the battery in time, avoid the user continuing to use electronic devices with unsafe batteries, and reduce the safety hazards when the user uses electronic devices.

[0009] This process utilizes the swelling of the battery to compress the sealed bag, thereby increasing the fluid pressure inside the sealed bag to the point that the bag is strong enough to trigger a detection device. The detection device is triggered by mechanical compression, allowing the electronic device to determine whether the battery has swollen by checking whether the detection device is triggered. The solution is relatively simple and does not require complex design, which helps control the R&D and production costs of electronic devices.

[0010] Meanwhile, during the use of electronic devices, batteries should not be subjected to hard external pressure. For example, when the battery is a pouch battery, it is easily damaged by hard external pressure. However, in this embodiment of the invention, because fluids are more easily squeezed, the sealed bag filled with fluid has good elasticity, making the sealed bag act like a protective pad, thereby protecting the battery. Attached Figure Description

[0011] Figure 1 This is an exploded view of the electronic device disclosed in an embodiment of the present invention;

[0012] Figure 2 This is a partially enlarged schematic diagram of the electronic device disclosed in an embodiment of the present invention;

[0013] Figure 3 This is a partial schematic diagram of the electronic device disclosed in an embodiment of the present invention, wherein, Figure 3 The partial diagram shown in the middle is an internal schematic diagram of the corresponding part;

[0014] Figure 4 This is a partial schematic diagram of the electronic device disclosed in the embodiments of the present invention from other perspectives. Figure 4 The partial diagram is a schematic diagram of the internal structure of the corresponding part;

[0015] Figure 5 This is a schematic diagram of the overall assembly of the electronic device disclosed in the embodiments of the present invention;

[0016] Figure 6 This is an assembly diagram of a partial structure of the electronic device disclosed in an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures:

[0018] 10-Casing, 11-Battery cover, 12-Casing body

[0019] 20 - Battery, 21 - First surface, 22 - Second surface

[0020] 30-Sealed bag, 40-Detection device, 41-Sealing plug, 42-First tube body, 421-Insulating area, 43-Positive electrode connection, 44-Negative electrode connection, 45-Valve, 46-Second tube body, 47-Conductive spring,

[0021] 50 - Accommodation gap, 60 - Battery protection board, 70 - Notch. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0023] The technical solutions disclosed in the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] This invention discloses an electronic device. The disclosed electronic device may be a mobile phone, tablet computer, e-book reader, game console, etc., and this invention does not limit the specific type of electronic device.

[0025] Please refer to Figures 1 to 6 The disclosed electronic device may include a housing 10, a battery 20, a sealed bag 30, and a detection device 40.

[0026] The housing 10 is the basic component of the electronic device, providing mounting positions for other components of the electronic device, and can also cooperate with some other components of the electronic device to form some functional spaces (such as the accommodating gap 50 mentioned later).

[0027] Battery 20 is a power supply component for electronic devices. Battery 20 can be a lithium battery, or other types of batteries known in the prior art (e.g., nickel-cadmium batteries, nickel-metal hydride batteries, etc.). This embodiment of the invention does not limit the specific type of battery 20. In this embodiment, battery 20 is disposed within housing 10 (i.e., battery 20 is disposed within the inner cavity of housing 10). For example, battery 20 can be fixed within housing 10 by means of adhesive bonding, snap-fitting, or connecting with connectors, thereby achieving installation within housing 10. In this embodiment, a receiving gap 50 is formed between battery 20 and housing 10. The receiving gap 50 is used to receive the sealing bag 30.

[0028] The sealed bag 30 is filled with fluid. The sealed bag 30 is used to trigger the detection device 40. The fluid can be a gas such as air or an inert gas, or a liquid such as water or oil. The embodiments of the present invention do not limit the specific type of fluid. In embodiments where the fluid is a gas, the sealed bag 30 is filled with gas, which makes it easier to form a lighter structure, which is beneficial for designing electronic devices to be lighter and ultimately easier for users to carry.

[0029] In this embodiment of the invention, the sealed bag 30 is disposed in the receiving gap 50 and is in contact with at least the battery 20. The sealed bag 30 is used to trigger the detection device 40.

[0030] The detection device 40 is a triggered device. If the detection device 40 is triggered, it indicates that the bulging deformation of the battery 20 exceeds a preset deformation threshold. If the detection device 40 is not triggered, it indicates that the bulging deformation of the battery 20 does not exceed the preset deformation threshold and is within a safe range. This embodiment of the invention does not limit the specific size of the preset deformation threshold.

[0031] In this embodiment of the invention, when the bulging deformation of the battery 20 exceeds (i.e., is greater than) a preset deformation threshold, the battery 20 squeezes the sealing bag 30 to trigger the detection device 40. Once the detection device 40 is triggered, it can determine that the battery 20 of the electronic device is in an unsafe operating state, thereby reminding the user to replace or repair the battery in a timely manner.

[0032] When the bulging deformation of battery 20 does not exceed (i.e., is less than or equal to) a preset deformation threshold, battery 20 will not compress the sealing bag 30, thus preventing the sealing bag 30 from triggering the detection device 40. Alternatively, when the bulging deformation of battery 20 does not exceed (i.e., is less than or equal to) the preset deformation threshold, the compression of the sealing bag 30 by battery 20 is small, making the sealing bag 30 insufficient to trigger the detection device 40, and similarly, the detection device 40 will not be triggered.

[0033] It should be noted that the bulging deformation amount can be the ratio of the volume change of the battery 20 before and after bulging to the volume of the battery 20 before bulging. The preset deformation threshold can be 0 or a non-zero value. This embodiment of the invention does not limit the specific value of the preset deformation threshold. Those skilled in the art can determine the preset deformation threshold comprehensively based on factors such as the type of battery 20 and the specific environment in which the battery 20 is used. The preset deformation threshold can be determined by experimental methods or by a preset calculation model. The determination of the preset deformation threshold is not the inventive point of this invention, and this embodiment of the invention does not impose any limitations.

[0034] Those skilled in the art can also adjust the preset deformation threshold to adjust the sensitivity of detecting battery 20 bulging. Therefore, in one optional embodiment, the preset deformation threshold can be 0. In this case, as long as battery 20 bulges and deforms, the preset deformation threshold will be exceeded, causing battery 20 to squeeze the sealing bag 30 and trigger the detection device 40. This embodiment allows for higher accuracy in detecting battery 20 bulging.

[0035] The electronic device disclosed in this embodiment of the invention improves the structure of the electronic device so that a receiving gap 50 is formed between the battery 20 installed inside the housing 10 and the housing 10, and a sealing bag 30 filled with fluid is disposed in the receiving gap 50 and is at least in contact with the battery 20. In this structure, when the expansion deformation of the battery 20 exceeds a preset deformation threshold, the battery 20 squeezes the sealing bag 30 so that the sealing bag 30 triggers the detection device 40. The triggering of the detection device 40 indicates that the battery 20 in the electronic device has bulged and there is a safety hazard. Ultimately, it can remind the user to repair or replace the battery 20 in time, avoid the user continuing to use the electronic device with an unsafe battery 20, and reduce the safety hazards when the user uses the electronic device.

[0036] In this process, the swelling of the battery 20 compresses the sealed bag 30. When the fluid inside the sealed bag 30 is compressed, the volume of the sealed bag 30 easily decreases because the size of the containment gap 50 is fixed. This leads to a decrease in the volume of the fluid and an increase in pressure. The increased fluid pressure inside the sealed bag 30 is sufficient to trigger the detection device 40. The detection device 40 can be triggered by mechanical compression, so the electronic device can determine whether the battery 20 has swelled by whether the detection device 40 is triggered. At the same time, the solution is relatively simple and does not require complex design, which helps to control the R&D and production costs of electronic devices.

[0037] Meanwhile, during the use of electronic devices, the battery 20 should not be subjected to hard external pressure. For example, when the battery 20 is a pouch battery, it is easily damaged by hard external pressure. In this embodiment of the invention, the sealed bag 30 filled with fluid has good elasticity because the fluid is easier to squeeze, thus making the sealed bag 30 similar to a protective pad, which can protect the battery 20. Therefore, the sealed bag 30 filled with fluid in this embodiment of the invention can play a dual role.

[0038] It should be noted that during actual operation, the heat generated by electronic devices can also increase the fluid pressure inside the sealed bag 30, which may interfere with the bulging detection of the battery 20. Considering that the heat generated by electronic devices has a limited impact on the fluid pressure inside the sealed bag 30, the preset deformation threshold can be increased to shield against temperature-related interference. Alternatively, the actual filling amount of fluid inside the sealed bag 30 can be designed, for example, by controlling the actual filling amount to a preset percentage of the designed volume of the sealed bag 30. A preset percentage less than 1 means that less fluid can be filled, leaving room for thermal expansion and thus avoiding misjudgments caused by changes in fluid pressure inside the sealed bag 30 due to thermal expansion.

[0039] As described above, the sealing bag 30 is disposed in the receiving gap 50 and is in contact with at least the battery 20. When the bulging deformation of the battery 20 exceeds a preset deformation threshold, the sealing bag 30 contacts both the battery 20 and the housing 10 and is compressed, thereby triggering the detection device 40. When the bulging deformation of the battery 20 does not exceed the preset deformation threshold, the sealing bag 30 may only contact the battery 20 and not the housing 10. To improve assembly stability, when the bulging deformation of the battery 20 does not exceed the preset deformation threshold, the sealing bag 30 contacts both the battery 20 and the housing 10; when the bulging deformation of the battery 20 exceeds the preset deformation threshold, the sealing bag 30 also contacts both the battery 20 and the housing 10.

[0040] In this embodiment of the invention, the contact between the sealing bag 30 and the battery 20 is varied. Furthermore, the location where the battery 20 may expand during the actual operation of the electronic device is uncertain. To more comprehensively detect the bulging of the battery 20, in one embodiment, the battery 20 has a first surface 21 for forming a receiving gap 50. The sealing bag 30 can be laid on and cover the first surface 21 of the battery 20. In this case, since the sealing bag 30 is laid on and covers the first surface 21 of the battery 20, the first surface 21 forming the receiving gap 50 of the battery 20 is in contact with the sealing bag 30 at all points. Therefore, regardless of where the battery 20 bulges on the first surface 21, the sealing bag 30 can be squeezed when the bulging deformation exceeds a preset deformation threshold, thereby triggering the detection device 40 through the sealing bag 30. This structure not only enables more comprehensive bulging detection but also improves the accuracy of bulging detection and avoids missed detections.

[0041] As described above, a receiving gap 50 is formed between the battery 20 and the housing 10. The battery 20 is generally a plate-shaped structural component. The third surface of the battery 20, which is opposite to the first surface 21, is fixed inside the housing 10. The housing 10 may include a battery cover 11 and a housing body 12. The battery cover 11 is connected to the housing body 12 (e.g., detachably connected) and forms the inner cavity of the housing 10. The first surface 21 of the battery 20 faces the battery cover 11. The first surface 21 of the battery 20 facing the battery cover 11 is prone to bulging. Based on this, in one embodiment, a receiving gap 50 can be formed between the battery cover 11 and the first surface 21, so that the sealing bag 30 can be disposed between the first surface 21 and the battery cover 11.

[0042] The embodiments of the present invention are not limited to forming a receiving gap 50 between the first surface 21 and the battery cover 11 to receive the sealing bag 30. In other embodiments, multiple surfaces of the battery 20 may form receiving gaps 50 with the corresponding parts on the housing 10. This structure can form multiple receiving gaps 50, and each of the multiple receiving gaps 50 may be provided with a sealing bag 30. Each sealing bag 30 may be provided with a detection device 40 that cooperates with it, thereby enabling more comprehensive detection.

[0043] The embodiments of the present invention do not limit the specific shape of the sealing bag 30. In one embodiment, the sealing bag 30 can be a flat structure. A flat structure makes it easier to form an elastic pad structure with a relatively uniform thickness in the accommodating gap 50, which is conducive to forming a more balanced elastic support between the battery 20 and the battery cover 11, ensuring that the battery 20 and the battery cover 11 are subjected to more balanced elastic support.

[0044] The detection device 40 can be of various types, and the embodiments of the present invention do not limit the specific type of the detection device 40. For example, in one embodiment, the detection device 40 can be a force sensor, which is triggered by the sealed bag 30, thereby causing the force sensor to generate a signal that can characterize the triggering.

[0045] In another embodiment, the detection device 40 may include a detection circuit. The detection circuit may include a circuit switch. When the bulging deformation of the battery 20 exceeds a preset deformation threshold, the fluid inside the sealed bag 30 drives the circuit switch to activate the detection device 40. In specific operation, when the bulging deformation of the battery 20 exceeds the preset deformation threshold, the battery 20 can squeeze the sealed bag 30, increasing the pressure of the fluid inside the sealed bag 30. During this process, the flow of fluid in the sealed bag 30 can drive the circuit switch to activate, thereby disconnecting or connecting the detection circuit. The electronic device can determine whether the battery 20 has bulged by whether the detection circuit has been disconnected or connected. It should be noted that determining whether the battery 20 has bulged, as described herein, refers to determining whether the bulging deformation of the battery 20 exceeds the preset deformation threshold. When the bulging deformation of the battery 20 does not exceed the preset deformation threshold, the battery 20 is considered not to have bulged. When the bulging deformation of the battery 20 exceeds the preset deformation threshold, the battery 20 is considered to have bulged.

[0046] It should be noted that the battery 20 will generate heat and undergo some degree of thermal expansion during normal operation. In order to avoid the bulging detection error caused by the normal thermal expansion of the battery 20, the preset deformation threshold can be adjusted (for example, increased) according to the type of battery 20, the type of electronic device, etc., so as to shield the interference caused by the thermal expansion of the battery 20 during normal operation.

[0047] The detection circuit can have various structures. In one embodiment, the detection circuit may further include a first tube 42, a positive electrode connection portion 43, and a negative electrode connection portion 44. The circuit switch may be a sealing plug 41. The positive electrode connection portion 43 and the negative electrode connection portion 44 are opposite to each other and spaced apart on the inner wall of the first tube 42. The sealing plug 41 is disposed inside the first tube 42 and can slide along the first tube 42. When the bulging deformation of the battery 20 exceeds a preset deformation threshold, the sealing bag 30 communicates with the first tube 42. Fluid is used to drive the sealing plug 41 to slide within the first tube 42, thereby changing the electrical connection state between the sealing plug 41 and at least one of the positive electrode connection portion 43 and the negative electrode connection portion 44 to trigger the detection device 40. The change in the electrical connection state between the sealing plug 41 and at least one of the positive electrode connection portion 43 and the negative electrode connection portion 44 indicates that the detection device 40 has been triggered, and thus indicates that the battery 20 has bulged. In this embodiment of the invention, the change in the electrical connection state between the sealing plug 41 and at least one of the positive electrode connection portion 43 and the negative electrode connection portion 44 essentially means a change in the circuit state of the detection circuit. It should be noted that the change in the circuit state of the detection circuit can refer to a change in the total resistance of the detection circuit. For example, the sealing plug 41 slides, thereby changing the contact length with the positive electrode connection portion 43 and the negative electrode connection portion 44, thus changing the total resistance of the series structure formed by the sealing plug 41, the positive electrode connection portion 43, and the negative electrode connection portion 44, and consequently changing the total resistance of the detection circuit.

[0048] For example, when the bulging deformation of the battery 20 does not exceed a preset deformation threshold, the sealing plug 41 does not contact the positive electrode connection 43 or the negative electrode connection 44. In this case, the detection circuit can be considered to be in an open circuit state. When the bulging deformation of the battery 20 exceeds the preset deformation threshold, the sealing plug 41 slides to a position that contacts both the positive electrode connection 43 and the negative electrode connection 44, thereby achieving an electrical connection between the positive electrode connection 43 and the negative electrode connection 44. In this case, the detection circuit can be considered to be in a closed circuit state.

[0049] For example, when the bulging deformation of the battery 20 does not exceed a preset deformation threshold, the sealing plug 41 contacts both the positive electrode connection 43 and the negative electrode connection 44 simultaneously, thereby achieving an electrical connection between the positive electrode connection 43 and the negative electrode connection 44. In this case, the detection circuit can be considered to be in a closed state. When the bulging deformation of the battery 20 exceeds the preset deformation threshold, the sealing plug 41 slides to a position where it separates from at least one of the positive electrode connection 43 and the negative electrode connection 44. The positive electrode connection 43 cannot be electrically connected to the negative electrode connection 44 through the sealing plug 41. In this case, the detection circuit can be considered to be in an open circuit state.

[0050] In one embodiment, the first tube 42 can be a flexible tube. As described above, the first tube 42 is used for sliding engagement with the sealing plug 41. Based on this, in order to facilitate the stable sliding of the sealing plug 41 within the first tube 42, in another embodiment, the first tube 42 can be a rigid tube. The first tube 42 can be fixed within the housing 10 based on the housing 10, thereby achieving installation. For example, the first tube 42 is a rigid plastic tube. Of course, the first tube 42 can also be made of other rigid materials, and the embodiments of the present invention do not limit the specific material of the first tube 42.

[0051] In a further embodiment, the sealing bag 30 may be equipped with a valve 45, and the first tube 42 is connected to the valve 45. When the bulging deformation of the battery 20 exceeds a preset deformation threshold, the valve 45 is closed, sealing the sealing bag 30 and the first tube 42, thus trapping the fluid within the sealing bag 30 and preventing the fluid from continuously filling the sealing bag 30 and the first tube 42. This structure also prevents excessive fluid leakage should a problem occur in the seal between the first tube 42 and the sealing plug 41.

[0052] When the bulging deformation of battery 20 exceeds a preset deformation threshold, valve 45 is opened and connected to the first tube 42. That is, the first tube 42 is connected to the sealing bag 30 via valve 45. Fluid in the sealing bag 30 enters the first tube 42 to drive the sealing plug 41 to slide. In this situation, the sliding of the sealing plug 41 changes the circuit state of the detection circuit, thereby triggering the detection device 40.

[0053] Valve 45 can be a diaphragm valve, such as... Figure 6 As shown, the diaphragm of the diaphragm valve can be locally thinned, making it easier to rupture when the fluid pressure increases, thereby switching the diaphragm valve to the open state. This type of diaphragm valve can achieve the open state without complex control, which is beneficial for the simplified design of electronic equipment. It should be noted that the embodiments of the present invention do not limit the specific type of valve 45 or its opening and closing mechanism, as long as it can switch between the open and closed states, thereby changing the communication relationship between the first tube 42 and the sealing bag 30.

[0054] In this embodiment of the invention, the first tube 42 can be directly connected to the valve 45 or indirectly connected to the valve 45. Considering that a rigid first tube 42 is more conducive to the sliding of the sealing plug 41 within the first tube 42, and that a rigid first tube 42 would be difficult to connect to the valve 45 within the confined space of the electronic device, in a further embodiment, the electronic device disclosed in this invention may further include a second tube 46, one end of which is connected to the first tube 42, and the other end of which is connected to the valve 45. The second tube 46 can be a flexible tube. In this case, the first tube 42 is connected to the valve 45 through the second tube 46. The second tube 46 is a flexible tube, thus having good deformability, and can better adapt to a confined connection environment through deformation.

[0055] In one embodiment, the electronic device may further include a battery protection board 60. The battery protection board 60 is a known electronic device capable of protecting the battery 20. The battery 20 also includes a second surface 22 adjacent to the first surface 21. The second surface 22 can also be considered as the surface of the battery 20 that intersects the first surface 21 at the edge of the battery 20. The battery protection board 60 is disposed on the second surface 22 and forms a notch 70 with the battery 20. A detection circuit is electrically connected to the battery protection board 60, and thus indirectly electrically connected to the battery 20 through the battery protection board 60. A detection device 40 is at least partially accommodated in the notch 70. In this structure, the detection device 40 fully utilizes the specific space of the notch 70 formed by the battery protection board 60 and the battery 20 to achieve the installation of at least a portion of the structure of the detection device 40, thereby eliminating the need for additional space to be designed for the detection device 40 in the electronic device, which is beneficial for ensuring a thinner and lighter design of the electronic device. This structure also makes it easier and more compact to integrate the new structure of the electronic device disclosed in this embodiment into existing electronic devices.

[0056] In this embodiment of the invention, the positive electrode connection portion 43 and the negative electrode connection portion 44 can be of various types. To facilitate the sliding of the sealing plug 41 within the first tube 42 to change the circuit state of the detection circuit, in one embodiment, both the positive electrode connection portion 43 and the negative electrode connection portion 44 can be metal plating layers disposed on the inner wall of the first tube 42. The metal plating layer can be a copper plating layer, a silver plating layer, etc. The positive electrode connection portion 43 and the negative electrode connection portion 44 can be electrically connected to the battery protection board 60 via corresponding wires or conductive springs 47. This embodiment of the invention does not limit the electrical connection method of the positive electrode connection portion 43 and the negative electrode connection portion 44 to the battery protection board 60. It should be noted that the areas on the inner wall of the first tube 42 other than the positive electrode connection portion 43 and the negative electrode connection portion 44 are insulating areas 421, such as... Figure 3 As shown.

[0057] The electronic device disclosed in this embodiment of the invention may further include a controller. The controller may be a central processing chip of the electronic device, or other chips or processing circuits within the electronic device; this embodiment of the invention does not limit the specific type of controller. Specifically, the controller may be connected to the detection device 40. In one embodiment, when the detection device 40 is triggered, the controller is used to cut off the power supply line of the battery 20, thereby preventing the battery 20 from remaining in a power supply state when its bulging deformation exceeds a preset deformation threshold, thus preventing the battery 20 from catching fire, overheating, or other greater dangers due to power supply at this time.

[0058] In another embodiment, the electronic device disclosed in this invention may further include a display screen and a controller. The display screen is disposed on the housing 10, thereby enabling installation on the housing 10. The controller may be connected to both the display screen and the detection device 40. The controller is used to control the display screen to display information indicating that the bulging deformation of the battery 20 exceeds a preset deformation threshold when the detection device 40 is triggered, thereby reminding the user to replace or repair the battery 20 in a timely manner.

[0059] In yet another embodiment, the electronic device disclosed in this invention may further include a controller and an alarm. The controller may be connected to both the detection device 40 and the alarm. The controller is used to control the alarm to emit an alarm message when the detection device 40 is triggered. The alarm may be an audible alarm or a visual alarm; this invention does not limit the specific type of alarm.

[0060] To improve the safety performance of electronic devices, the electronic device disclosed in this embodiment of the invention includes a controller capable of performing at least two of the above three control operations when the bulging deformation of the battery 20 exceeds a preset deformation threshold. For example, when the bulging deformation of the battery 20 exceeds the preset deformation threshold, the controller cuts off the power supply to the battery 20 and controls the display screen to display information indicating that the bulging deformation of the battery 20 exceeds the preset deformation threshold. For example, when the bulging deformation of the battery 20 exceeds the preset deformation threshold, the controller cuts off the power supply to the battery 20 and controls the alarm to issue an alarm message. For another example, when the bulging deformation of the battery 20 exceeds the preset deformation threshold, the controller controls the display screen to display information indicating that the bulging deformation of the battery 20 exceeds the preset deformation threshold and controls the alarm to issue an alarm message. For yet another example, when the bulging deformation of the battery 20 exceeds the preset deformation threshold, the controller controls the display screen to display information indicating that the bulging deformation of the battery 20 exceeds the preset deformation threshold, controls the alarm to issue an alarm message, and cuts off the power supply to the battery 20.

[0061] Of course, the electronic device disclosed in the embodiments of the present invention can also be configured with other control methods that can remind users or reduce risks, and the embodiments of the present invention do not impose any limitations.

[0062] Considering the varying degrees of bulging and deformation of the battery 20, resulting in different levels of risk, the controller can provide different levels of alerts or controls accordingly. The greater the bulging and deformation of the battery 20, the greater the risk and the more severe the bulging. In one embodiment of the electronic device mentioned above, including a detection circuit, the sealing plug 41 can maintain electrical connections with both the positive terminal connection 43 and the negative terminal connection 44, ensuring that the detection circuit remains in a continuous state regardless of whether the bulging and deformation of the battery 20 exceeds or does not exceed a preset deformation threshold. The sliding of the sealing plug 41 changes the total resistance of the detection circuit. Compared to the total resistance of the detection circuit when the sealing plug 41 is in its initial, unmoved position (the original total resistance), the greater the difference between the actual total resistance of the detection circuit (i.e., the total resistance of the detection circuit when the sealing plug 41 is not in its initial position after movement) and the original total resistance (also the change in total resistance), the more severe the bulging of the battery 20. Therefore, in other embodiments, the controller can determine the control strategy based on the change in the total resistance of the detection circuit; the larger the change in total resistance, the higher the level of the controller's control strategy. This embodiment of the invention does not limit the specific content of the control strategy.

[0063] For example, when the total resistance change is less than or equal to a first preset threshold, the controller can control the display screen to show information indicating that the bulging deformation of battery 20 exceeds a preset deformation threshold, thereby alerting the user. When the total resistance change is greater than the first preset threshold but less than or equal to a second preset threshold, the controller can at least control the alarm to issue an alarm message. When the total resistance change is greater than the second preset threshold, the controller cuts off the power supply to battery 20, thereby stopping the power supply to battery 20. It should be noted that the second preset threshold is greater than the first preset threshold.

[0064] For example, when the change in total resistance is less than or equal to a first preset threshold, the controller can control the alarm to emit an alarm message at a first frequency. When the change in total resistance is greater than the first preset threshold but less than or equal to a second preset threshold, the controller can control the alarm to emit an alarm message at a second frequency. When the change in total resistance is greater than the second preset threshold, the controller can control the alarm to emit an alarm message at a third frequency. It should be noted that the second preset threshold is greater than the first preset threshold, and the third frequency is greater than the second frequency; the second frequency is greater than the first frequency. In other words, the higher the risk level, the more frequently the alarm will sound, thus achieving a better effect of alerting the user.

[0065] The above embodiments of the present invention focus on describing the differences between the various embodiments. As long as the different optimization features of 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.

[0066] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. An electronic device, comprising: The application relates to a battery safety device, which comprises a shell (10), a battery (20), a sealed bag (30) and a detection device (40), the battery (20) is arranged in the shell (10), a containing gap (50) is formed between the battery (20) and the shell (10), the sealed bag (30) is filled with a fluid, the sealed bag (30) is arranged in the containing gap (50) and at least contacts the battery (20), when the swelling deformation of the battery (20) exceeds a preset deformation threshold, the battery (20) is used to extrude the sealed bag (30) so that the sealed bag (30) triggers the detection device (40).

2. The electronic device of claim 1, wherein, The battery (20) has a first surface (21) for forming the containing gap (50), the sealed bag (30) is laid on the first surface (21) of the battery (20) and covers the first surface (21).

3. The electronic device of claim 2, wherein, The shell (10) comprises a battery cover (11), the containing gap (50) is formed between the battery cover (11) and the first surface (21).

4. The electronic device of claim 2 or 3, wherein, The sealed bag (30) has a flat structure; and / or the fluid is a gas.

5. The electronic device of claim 1, wherein, The detection device (40) comprises a detection circuit, the detection circuit comprises a circuit switch, when the swelling deformation of the battery (20) exceeds the preset deformation threshold, the fluid is used to drive the circuit switch to move so as to trigger the detection device (40).

6. The electronic device of claim 5, wherein, The detection circuit further comprises a first pipe body (42), a positive electrode connecting part (43) and a negative electrode connecting part (44); the circuit switch is a sealing plug (41); the positive electrode connecting part (43) and the negative electrode connecting part (44) are opposite and are arranged at intervals on the inner wall of the first pipe body (42), the sealing plug (41) is arranged in the first pipe body (42) and can slide along the first pipe body (42); When the swelling deformation of the battery (20) exceeds the preset deformation threshold, the sealed bag (30) communicates with the first pipe body (42), and the fluid is used to drive the sealing plug (41) to slide in the first pipe body (42) so as to change the electrical connection state between the sealing plug (41) and at least one of the positive electrode connecting part (43) and the negative electrode connecting part (44) to trigger the detection device (40).

7. The electronic device of claim 6, wherein, The sealed bag (30) is provided with a valve (45), the first pipe body (42) is connected with the valve (45); When the swelling deformation of the battery (20) exceeds the preset deformation threshold, the valve (45) is in a closed state, the sealed bag (30) is sealed and isolated from the first pipe body (42); When the swelling deformation of the battery (20) exceeds the preset deformation threshold, the valve (45) is in an open state, and the valve (45) communicates the first pipe body (42) and the sealed bag (30) so that the fluid enters the first pipe body (42) to drive the sealing plug (41) to slide.

8. The electronic device of claim 7, wherein, The first pipe body (42) is a rigid pipe body and is fixed in the shell (10), the detection device (40) further comprises a second pipe body (46), one end of the second pipe body (46) is communicated with the first pipe body (42), the other end of the second pipe body (46) is connected with the valve (45), and the second pipe body (46) is a flexible pipe body.

9. The electronic device of claim 6, wherein, The electronic device further comprises a battery protection plate (60), the battery (20) further comprises a second surface (22) adjacent to the first surface (21), the battery protection plate (60) is arranged on the second surface (22) and forms an opening (70) with the battery (20), the detection circuit is electrically connected with the battery protection plate (60), and the detection device (40) is at least partially accommodated in the opening (70).

10. The electronic device of claim 9, wherein, The positive electrode connecting part (43) and the negative electrode connecting part (44) are metal plating layers arranged on the inner wall of the first pipe body (42), and the positive electrode connecting part (43) and the negative electrode connecting part (44) are respectively electrically connected with the battery protection plate (60) through corresponding conductive wires or conductive springs (47).

11. The electronic device of claim 1, wherein, The electronic device further comprises a controller connected with the detection device (40), and the controller is used for cutting off the power supply circuit of the battery (20) when the detection device (40) is triggered. And / or, The electronic device further comprises a display screen and a controller, the display screen is arranged on the shell (10), the controller is connected with the display screen and the detection device (40) respectively, and the controller is used for controlling the display screen to display information capable of representing that the swelling deformation amount of the battery (20) exceeds the preset deformation amount threshold when the detection device (40) is triggered. And / or, The electronic device further comprises a controller and an alarm, the controller is connected with the detection device (40) and the alarm respectively, and the controller is used for controlling the alarm to send alarm information when the detection device (40) is triggered.

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