Battery bulge detection device and battery device

Abstract

The application provides a battery bulging detection device and a battery device, wherein the detection device comprises a housing, the housing is enclosed to form an accommodating space, at least one side wall of the housing is provided with a mark tube exposed to the outside, a movable counting part is arranged in the mark tube, and the mark tube is provided with a warning position mark; an induction mechanism comprises an induction plate and a piston part, the induction plate is arranged in the accommodating space, a first end of the piston part extends into the mark tube, a second end of the piston part is located in the accommodating space and connected with a first side of the induction plate, and a second side of the induction plate is used to be attached to a battery; wherein the induction plate can push the piston part to compress the space of the mark tube when the battery bulges, so that the counting part moves to the area where the warning position mark is located in the mark tube. Compared with the prior art using sensors and communication devices to detect battery bulging, the application is beneficial to reduce the cost of the battery device, and the information whether the battery bulges can be obtained in time by checking the mark tube.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery, in particular to a battery bulging detection device and a battery device. BACKGROUND

[0002] In the prior art, the detection of battery bulging is mostly achieved by installing a sensor in the battery, and a communication device is mostly installed in the battery to transmit the battery bulging data. However, the sensor and the communication device are high in cost, and the communication device may have the problem of unstable signal, which causes the problems of the battery bulging data not being transmitted in time and the high cost of the battery in the prior art. SUMMARY

[0003] The embodiments of the present application provide a battery bulging detection device and a battery device to solve the problem that the detection of battery bulging in the prior art needs to use a sensor and a communication device, which may cause the problems of the battery bulging data not being transmitted in time and the high cost of the battery.

[0004] To solve the above technical problems, the present application is implemented as follows:

[0005] In a first aspect, the embodiments of the present application provide a battery bulging detection device, which comprises:

[0006] A shell, which encloses a containing space, at least one side wall of the shell is provided with a mark tube exposed to the outside, a movable counting part is arranged in the mark tube, and the mark tube is provided with a warning position mark;

[0007] A sensing mechanism, which comprises a sensing plate and a piston part, the sensing plate is arranged in the containing space, the first end of the piston part extends into the mark tube, the second end of the piston part is located in the containing space and connected with the first side of the sensing plate, and the second side of the sensing plate is used to adhere to a battery;

[0008] Wherein, when the battery bulges, the sensing plate is pushed by the battery to push the piston part to compress the space of the mark tube, so that the counting part moves to the area where the warning position mark is located in the mark tube.

[0009] In a second aspect, the embodiments of the present application further provide a battery device, which comprises at least one battery and the battery bulging detection device in the first aspect, the at least one battery is located in the containing space and adheres to one side of a sensing plate.

[0010] In the embodiment of the present application, the battery bulging detection device comprises a shell and a sensing mechanism. At least one side wall of the shell is provided with a mark tube exposed outside, the mark tube is provided with a movable counting member, and the mark tube is provided with a warning position mark. The sensing mechanism comprises a sensing plate and a piston member. The sensing plate can push the piston member to compress the space of the mark tube when the battery is bulging, so that the counting member moves to the area where the warning position mark is located. In the embodiment of the present application, the mark tube is exposed outside the shell, and the information whether the battery is bulging can be obtained in time by checking the area where the counting member is located in the mark tube. Compared with the prior art, the battery bulging detection device of the present application is beneficial to reducing the cost of the battery device, and the information whether the battery is bulging can be obtained in time. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 FIG. 1 is a structural diagram of a battery bulging detection device provided in the embodiment of the present application;

[0012] Figure 2 FIG. 2 is another structural diagram of a battery bulging detection device provided in the embodiment of the present application;

[0013] Figure 3 FIG. 3 is a sectional view of a battery bulging detection device provided in the embodiment of the present application;

[0014] Figure 4 FIG. 4 is a structural diagram of a sensing mechanism provided in the embodiment of the present application;

[0015] Figure 5 FIG. 5 is a sectional view of a bearing frame provided in the embodiment of the present application;

[0016] Figure 6 FIG. 6 is a structural diagram of an overflow plate provided in the embodiment of the present application;

[0017] Figure 7 FIG. 7 is a structural diagram of an electric connection strip provided in the embodiment of the present application. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] The battery bulge will pose a threat to the safety of the battery and the safety of the environment around the battery, and the excessive bulge of the battery can cause the battery to explode, resulting in more serious consequences. Timely acquisition of information about the battery bulge is conducive to the safety of the battery in use. In the prior art, the detection of the battery bulge is mostly achieved by installing a sensor in the battery, and a communication device is mostly installed in the battery to transmit the battery bulge data. However, the cost of the sensor and the communication device is relatively high, and the communication device can have the problem of unstable signal, which makes the prior art have the problems that the battery bulge data cannot be transmitted in time and the cost of the battery is relatively high. Based on the above problems of the prior art, the embodiments of the present application provide a battery bulge detection device and a battery device to timely acquire information about whether the battery is bulged and solve the problem of relatively high cost of the battery caused by the installation of the sensor and the communication device.

[0020] First, the battery bulge detection device provided by the embodiments of the present application will be described.

[0021] Referring to Figures 1 to 3 , the battery bulge detection device 1 comprises:

[0022] The shell 10 encloses a containing space 20, at least one side wall of the shell 10 is provided with a mark tube 11 exposed to the outside, the mark tube 11 is provided with a movable counting member 111, and the mark tube 11 is provided with a warning position mark;

[0023] The induction mechanism comprises an induction plate 31 and a piston member 32, the induction plate 31 is arranged in the containing space 20, the first end of the piston member 32 extends into the mark tube 11, the second end of the piston member 32 is located in the containing space and connected with the first side of the induction plate 31, and the second side of the induction plate 31 is used to be attached to a battery;

[0024] Wherein, the induction plate 21 can be pushed by the battery to push the piston member 22 to compress the space of the mark tube 11 when the battery is bulged, so that the counting member 111 moves to the area where the warning position mark is located in the mark tube 11.

[0025] The shell 10 encloses the accommodating space 20, and at least one side wall of the shell 10 is provided with a mark tube 11 exposed to the outside. The shell 10 can be a single-layer shell or a double-layer shell. If the shell 10 is a double-layer shell, it is beneficial to maintain the safety of the battery and prevent explosion. The shell 10 forms the accommodating space 20, which can be used to accommodate the battery and other mechanisms. The bottom of the shell 10 can be provided with a heat dissipation pad 40. The top of the shell 10 is provided with a sealing cover 50 matched therewith. The sealing cover 50 can be connected with the shell 10 through the lug locking piece on both sides. The lug locking piece includes a connecting groove opened on the sealing cover 50. The inner side wall of the connecting groove is connected with a locking plate 51 through a hinge assembly. The inner side wall of the locking plate is fixedly connected with a triangular locking block 511. The side wall of the shell 10 is provided with a triangular fixed block 12 matched with the triangular locking block 511. The triangular locking block 511 is clamped with the triangular fixed block 12, so that the sealing cover 50 is locked with the shell 10, and the top opening of the shell 10 is sealed. The clamping locking structure described above can make the installation of the sealing cover 50 and the shell 10 more convenient, and is beneficial to realize rapid assembly.

[0026] At least one side wall of the shell 10 is provided with a mark tube 11 exposed to the outside. It can be a glass mark tube exposed to the outside, or a mark tube made of other materials. As long as it can be exposed to the outside, the position of the positioner 111 in the mark tube 11 can be determined by checking the mark tube 11 from the outside.

[0027] The positioner 111 in the mark tube 11 can move in the mark tube. According to the position of the positioner 111 in the mark tube 11, the degree of bulging of the battery associated with the mark tube 11 can be determined. The mark tube 11 is provided with a warning position mark. When the positioner 111 moves to the warning position mark, the warning position mark information can be obtained according to the warning position mark. The warning position mark can be directly arranged on the tube body of the mark tube 11 exposed to the outside, or arranged on the outer side wall of the shell 10 beside the mark tube 11. The warning position mark can be any mark that can reflect the position of the positioner. For example, the warning position mark can be color mark, including green and red mark information. If the positioner 111 moves to the green mark area, it means that the degree of battery bulging is not serious. If the positioner 111 moves to the red mark area, it means that the degree of battery bulging is serious, and the battery needs to be replaced or maintained in time. The warning position mark can also be a warning scale. According to the warning scale, the position of the positioner 111 in the mark tube 11 can be reflected. The warning scale can be provided with an alarm scale. When the positioner 111 moves to the alarm scale in the mark tube 11, the degree of battery bulging is serious, and the battery needs to be replaced or maintained in time.

[0028] The induction mechanism comprises an induction plate 31 and a piston 32. The induction plate 31 is arranged in the accommodating space enclosed by the shell 10, the first end of the piston 32 extends into the indicating tube 11, and the second end of the piston 32 is located in the accommodating space 20 and connected with the first side of the induction plate 31. The second side of the induction plate 31 is used to be attached to a battery. The induction plate 31 can be pushed by the battery when the battery bulges to push the piston 32 to compress the space of the indicating tube 11, so that the positioner 111 moves in the indicating tube 11 to the area where the warning position mark is located. By checking the area where the positioner 111 is located in the indicating tube 11, the information of whether the battery bulges can be obtained in time. According to the warning position mark information and the specific area where the positioner 111 moves to the warning position mark, the information of the severity of the battery bulging can also be obtained.

[0029] It should be noted that the positioner 111 can be a piston or not, as long as the space of the indicating tube is compressed to make the positioner 111 move in the indicating tube 11. For example, a colored liquid can be injected into the indicating tube, the positioner is a positioner liquid, the space of the indicating tube 11 is compressed to make the positioner liquid rise in the indicating tube, and the warning position mark corresponding to the liquid plane of the positioner liquid is checked, so that the related information of the battery bulging can be obtained.

[0030] Preferably, the positioner 111 is a pneumatic piston, the indicating tube 11 comprises a gas cavity 112, one end of the piston 32 extends into the gas cavity 112, and the induction plate can be pushed by the battery when the battery bulges to push the piston 32 to compress the space of the gas cavity 112. The compression of the space of the gas cavity 112 can push the positioner 111 to move in the indicating tube 11. Compared with injecting a colored liquid into the indicating tube, setting the indicating tube to comprise the gas cavity 112 and setting the positioner 111 to be a pneumatic piston is safer and more reliable.

[0031] It should be noted that a plurality of mounting units can be arranged in the accommodating space 20, each mounting unit is used to mount a battery, each battery is provided with a corresponding induction mechanism and indicating tube 11, and the gas cavities 112 of the indicating tubes 11 can be arranged to be not communicated. When the battery bulges, the piston 32 can be pushed to compress the space of the corresponding gas cavity 112, so as to locate which battery bulges. The accommodating space 20 can comprise a plurality of accommodating units, each accommodating unit is used to accommodate a battery, and each battery is associated with an induction mechanism and an indicating tube 11. In this way, when any battery bulges, the positioner 111 in the indicating tube 11 associated with the battery will move in the indicating tube 11 to the area where the warning position mark is located, which is conducive to obtaining the battery bulging information in time and locating which battery bulges.

[0032] In the embodiment of the present application, when the battery bulges, the induction plate 31 is pushed by the battery to push the piston 32 to compress the space of the indicating tube 11, so that the positioner 111 moves in the indicating tube 11 to the area where the warning mark is located. The indicating tube 11 is exposed outside the shell, and by checking the area where the positioner 111 is located in the indicating tube 11, the information whether the battery bulges can be obtained in time. Compared with the prior art, the detection of the battery bulge needs to use sensors and communication devices, and the battery bulge detection device of the present application is beneficial to reduce the cost of the battery device, and the information whether the battery bulges can be obtained in time.

[0033] Optionally, the battery bulge detection device further comprises a buffer mechanism, the buffer mechanism is arranged between the induction plate 31 and the side wall of the shell 10, and the buffer mechanism is used to buffer the pushing force applied by the induction plate 31 to the side wall of the shell when the induction plate 31 moves close to the side wall of the shell 10.

[0034] In the case of battery bulging to a certain extent or battery explosion, the induction plate 31 will apply a pushing force to the inner wall of the shell 10, which may cause the shell 10 to break. By arranging the buffer mechanism between the induction plate 31 and the side wall of the shell 10, the buffer mechanism can buffer the pushing force applied by the induction plate to the side wall of the shell 10 when the induction plate 31 moves close to the side wall of the shell 10, thereby reducing the risk of the shell 10 breaking due to the pushing force applied by the induction plate.

[0035] The specific structure of the buffer mechanism is described below.

[0036] Optionally, the buffer mechanism comprises a blocking plate 61 and at least one elastic buffer 62, the blocking plate 61 faces the side wall of the shell 10, the blocking plate 61 is fitted with or has a gap with the side wall of the shell 10, one end of the at least one elastic buffer 62 is connected with the first side of the induction plate 31, and the other end of the at least one elastic buffer 62 is connected with the blocking plate 61.

[0037] In the case of battery bulging or battery explosion, the induction plate 31 is pushed by the battery to push the at least one elastic buffer 62 and the blocking plate 61 connected therewith, and the blocking plate 61 is fitted with or has a gap with the side wall of the shell 10. When the blocking plate 61 is fitted with the side wall of the shell 10, the induction plate 31 is pushed by the battery to push the elastic buffer 62 and the blocking plate 61, and the elastic buffer 62 can immediately buffer the pushing force applied by the induction plate 31; when the blocking plate 61 has a gap with the side wall of the shell 10, the induction plate 31 is pushed by the battery to push the elastic buffer 62 and the blocking plate 61 to move, and after the blocking plate 61 moves to be fitted with the side wall of the shell 10, the elastic buffer 62 can buffer the pushing force continuously applied by the induction plate 31.

[0038] In the case of explosion of the battery, the instant impact generated thereby is large, and the elastic buffer 62 associated with the exploded battery can reduce the instant impact generated by the explosion, thereby facilitating the maintenance of the safety of the environment surrounding the exploded battery.

[0039] The buffer mechanism including the blocking plate 61 and the at least one elastic buffer 62 can effectively buffer the thrust applied by the induction plate 31 to the inner wall of the shell 10 in the case of swelling of the battery to a certain extent or explosion of the battery, thereby facilitating the reduction of the risk of rupture of the shell 10.

[0040] As shown in Figures 3 to 4 Optionally, the battery swelling detection device further includes a connecting piece 70, the connecting piece 70 including a first connecting portion, a second connecting portion and a third connecting portion, the first connecting portion being connected with the induction plate 31, the second connecting portion being connected with the at least one elastic buffer 62, and the third connecting portion being connected with the piston piece 32.

[0041] The blocking plate 61 is provided with a small hole, and the piston piece 32 of the accommodating space 20 is embedded in the small hole, and there is a gap between the blocking plate 61 and the side wall of the shell 10.

[0042] The connecting piece 70 is pushed by the induction plate 31 to push the piston piece 32 and the buffer mechanism, so that after the blocking plate 61 abuts against the shell 10, the at least one elastic buffer 62 can buffer the thrust applied by the induction plate 31 to the blocking plate 61 or the shell 10.

[0043] In the embodiment, the battery bulging detection device further comprises a connecting piece, the connecting piece comprising a first connecting part, a second connecting part and a third connecting part. The first connecting part is connected with the induction plate, and the first connecting part can be embedded into a U-shaped connecting groove 311 provided on the induction plate 31 to achieve the connection between the first connecting part and the induction plate 31. The second connecting part is connected with at least one elastic buffer 62, and the second connecting part can be directly connected with the elastic buffer 62 or connected with the elastic buffer 62 through an abutting block. When the second connecting part is connected with the elastic buffer 62 through the abutting block, the second connecting part is slidingly connected with the abutting block, the abutting block is horizontally arranged, and the elastic buffer 62 is sleeved outside the abutting block. When the connecting piece 70 is pushed to move by the induction plate, the connecting piece 70 can be deviated. The second connecting part of the connecting piece 70 is slidingly connected with the abutting block, and when the connecting piece 70 is deviated, the abutting block can slide to make the abutting block not be inclined and remain in a horizontal state. The elastic buffer 62 sleeved outside the abutting block is also in a horizontal state, thereby facilitating the buffering of the pushing force applied by the induction plate 31 and the connecting piece 70. The elastic buffer 62 can be a spring.

[0044] When the battery is bulging, the induction plate 31 is pushed to push the connecting piece 70, the connecting piece 70 pushes the elastic buffer 62 and the piston piece 32 to move to the side wall of the shell 10, and the elastic buffer 62 drives the blocking plate 61 to move to the side wall of the shell 10. There is a gap between the blocking plate 61 and the side wall of the shell 10, thereby not affecting the pushing of the piston piece 32 and the elastic buffer 62 by the connecting piece 70, so that the piston piece 32 can compress the space of the indicating tube 11, and the position counting piece 111 in the indicating tube 11 can move in the indicating tube 11 until the blocking plate 61 abuts against the inner wall of the shell 10.

[0045] The embodiment of the present application can make the connection between the piston piece 32 and the induction plate 31 and the connection between the elastic buffer 62 and the induction plate 31 more firm by arranging the connecting piece 70. The position of the bulging battery is random, and the elastic buffer 62 and the induction plate 31 are connected through the connecting piece 70, which can have a good buffering effect. There is a gap between the blocking plate 61 and the side wall of the shell 10, and when the battery is bulging, the pushing of the piston piece 32 and the elastic buffer 62 by the connecting piece 70 is not affected, so that the piston piece 32 can compress the space of the indicating tube 11, and the position counting piece 111 in the indicating tube 11 can move in the indicating tube until the blocking plate 61 abuts against the inner wall of the shell 10.

[0046] Optionally, the battery bulge detection device further comprises a fire extinguishing mechanism arranged in the accommodating space. When the sensing plate 31 moves to the side wall of the shell 10, the sensing plate 31 can trigger the fire extinguishing mechanism to release the fire retardant.

[0047] When the battery adhering to the sensing plate 31 explodes, the battery pushes the sensing plate 31 to move to the side wall of the shell 10. When the sensing plate 31 moves to the side wall of the shell 10, the sensing plate 31 can trigger the fire extinguishing mechanism to release the fire retardant into the accommodating space 20, thereby achieving fire extinguishing treatment on the burning battery and reducing the loss caused by the battery explosion.

[0048] Optionally, as shown in Figures 2 to 5 The fire extinguishing mechanism comprises a receiving frame 80, and the receiving frame 80 comprises:

[0049] An accommodating cavity 81 for accommodating the fire retardant;

[0050] An end plate 82 abutting against the sensing plate 31;

[0051] A first overflow plate 83 connected with the end plate 82, and the first overflow plate 83 comprises at least one first overflow hole 831;

[0052] A second overflow plate 84 comprising at least one second overflow hole 841, and the at least one second overflow hole 841 is arranged in a staggered manner with the at least one first overflow hole 831;

[0053] When the sensing plate 31 moves to the side wall of the shell 10, the end plate 82 and the first overflow plate 83 can be pushed, so that the at least one first overflow hole 831 is in communication with the at least one second overflow hole 841, and the fire retardant in the accommodating cavity 81 can overflow into the accommodating space 20.

[0054] In this embodiment, when the battery adhering to the sensing plate 31 explodes, the battery pushes the sensing plate 31 to move to the side wall of the shell 10. When the sensing plate 31 moves to the side wall of the shell 10, the end plate 82 and the first overflow plate 83 can be pushed, so that the first overflow hole 831 is in communication with the second overflow hole 841, and the fire retardant in the accommodating cavity 81 can overflow into the accommodating space 20, thereby achieving fire extinguishing treatment on the burning battery and reducing the loss caused by the battery explosion.

[0055] It should be noted that the accommodating space 20 can comprise a plurality of installation units, each unit corresponding to an installed battery, and the accommodating cavity 81 is located between two adjacent batteries. When the battery explodes, the fire retardant, such as dry powder extinguishing agent, can overflow from the accommodating cavity 81 to the space between the exploded battery and the adjacent battery, thereby forming an isolation layer between the exploded battery and the adjacent battery, and further reducing the loss caused by the battery explosion.

[0056] Optionally, as shown in Figures 2 to 6As shown, the induction plate 31 includes a first induction plate and a second induction plate arranged oppositely;

[0057] The end plate 82 includes a first end plate and a second end plate. The first end plate abuts against the first induction plate, and the second end plate abuts against the second induction plate.

[0058] The first overflow plate 83 includes a first part overflow plate and a second part overflow plate. The first part overflow plate is connected to the first end plate, and the second part overflow plate is connected to the second end plate. The first part overflow plate and the second part overflow plate are in a disconnected state.

[0059] The first part overflow plate and the second part overflow plate each include at least one first overflow hole 831. In a normal state, the first overflow hole 831 and a second overflow hole 841 are misaligned. When the battery abutting against the first induction plate and the second induction plate explodes, the first induction plate and the second induction plate are pushed to move towards the side wall of the shell. The first end plate and the first part overflow plate connected to the first end plate are pushed to move towards the side wall of the shell by the first induction plate. The second end plate and the second part overflow plate connected to the second end plate are pushed to move towards the side wall of the shell by the second induction plate. The first overflow hole 831 of the first part overflow plate and the second overflow hole 832 are in communication. The first overflow hole 831 of the second part overflow plate and the second overflow hole 832 are in communication. The fire retardant in the accommodating cavity 81 is overflowed to the accommodating space 20 through the communication, so as to achieve the fire retardation of the exploded battery.

[0060] Optionally, the battery bulging detection device further includes an electric connection strip 90. The electric connection strip 90 is used for electric connection of the batteries arranged adjacently.

[0061] The first induction plate and the second induction plate can push the first end plate and the second end plate to move towards the side wall of the shell. When the first end plate and the second end plate move to be close to the side wall of the shell, the electric connection strip 90 is triggered to rotate, so that the electric connection of the batteries arranged adjacently is disconnected.

[0062] When the battery explodes or bulges to a certain extent, the first induction plate and the second induction plate can push the first end plate and the second end plate to move towards the side wall of the shell 10. When the first end plate and the second end plate move to be close to the side wall of the shell, the electric connection strip 90 is triggered to rotate, so that the electric connection of the batteries arranged adjacently is disconnected, thereby facilitating the safety use of the battery.

[0063] As shown in the figure, Figures 2 to 7 Optionally, the two ends of the electric connection strip 90 include wire grooves 91 with the same opening direction. The wire grooves 91 are respectively used for adapting to the metal columns of the batteries arranged adjacently.

[0064] The electric connection strip 90 further includes a limiting opening 92. The opening direction of the limiting opening 92 is opposite to the opening direction of the wire groove 91.

[0065] The receiving frame 80 comprises a limiting block 85, a part of the limiting block 85 extends out of the surface of the receiving frame 80 and cooperates with the limiting opening 92, another part of the limiting block 85 is located in the accommodating cavity and is connected with the tension plate 86, the first end plate and the second end plate bear the tension plate 86;

[0066] When the first end plate and the second end plate move to be close to the side wall of the shell 10, the tension plate 86 can drive the limiting block 85 to fall off, the electric connection strip 90 rotates, and the electric connection of the adjacent arranged batteries is disconnected.

[0067] In this embodiment, when the battery explodes or bulges to a certain extent, the first end plate and the second end plate move to be close to the side wall of the shell 10, the first end plate and the second end plate bear the tension plate 86, and the first end plate and the second end plate move to be close to the side wall of the shell 10 so that the tension plate 86 falls off to the accommodating cavity 81, and the limiting block 85 is also pulled off to the accommodating cavity 81 by the tension plate 86. The limiting block 85 cooperates with the limiting opening 92 of the electric connection strip, so as to fix the electric connection strip 90, and the wire grooves 91 at both ends of the electric connection strip 90 are respectively used to adapt to the metal columns of the adjacent arranged batteries, so as to realize the electric connection of the adjacent arranged batteries. After the battery explodes or bulges to a certain extent, the limiting block 85 falls off to the accommodating cavity 81, so that the electric connection strip 90 rotates, so as to disconnect the electric connection of the adjacent arranged batteries.

[0068] It should be noted that the receiving frame 80 can also comprise a pressure spring 87, when the tension plate 86 is borne on the end plate 82, the pressure spring 87 is in a compressed state. After the battery explodes or bulges to a certain extent, the pressure spring 87 restores the original length and applies a force to the tension plate 86, so as to make the tension plate 86 drive the limiting block 85 to fall into the accommodating cavity 81 more quickly, so as to quickly disconnect the electric connection of the adjacent arranged batteries.

[0069] Through the above-mentioned embodiments, when the battery explodes or bulges to a certain extent, the electric connection of the adjacent arranged batteries can be disconnected, which is beneficial to the safe use of the battery.

[0070] Optionally, the battery bulging detection device further comprises:

[0071] The heat dissipation hole 13 is in communication with the heat dissipation cavity, and the heat dissipation cavity is formed by the first side of the induction plate 31 and the shell 10.

[0072] In this embodiment, external wind enters the heat dissipation cavity through the heat dissipation holes 13, and the heat dissipation cavity is formed by the first side of the induction plate 31 and the shell 10. After the external wind enters the heat dissipation cavity, most of the wind acts on the first side of the induction plate 31, cools the induction plate, and thus cools the battery attached to the second side of the induction plate, which is conducive to reducing the moisture of the battery caused by the direct action of the wind on the battery. The material of the induction plate 31 can be a strong heat-conducting alloy to ensure the strength of the induction plate and to enable rapid heat conduction between the battery and the induction plate.

[0073] The embodiments of the present application also provide a battery device including at least one battery, such as a lithium battery or a lead storage battery, and any one of the battery bulge detection devices 1 described in the above embodiments. The lithium battery can be, for example, a lithium iron phosphate battery. The at least one battery is located in the accommodation space 20 and attached to one side of the induction plate 31.

[0074] The specific embodiments of the battery device of the embodiments of the present application can refer to the above description and achieve the same technical effects. To avoid repetition, this will not be described here.

[0075] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A battery bulge detection device, characterized by, The battery bulging detection device comprises: a housing enclosing a containing space, at least one side wall of the housing being provided with a mark tube exposed to the outside, the mark tube being provided with a movable counting member, the mark tube being provided with a warning position mark; a sensing mechanism comprising a sensing plate and a piston member, the sensing plate being arranged in the containing space, the first end of the piston member extending into the mark tube, the second end of the piston member being located in the containing space and connected with the first side of the sensing plate, the second side of the sensing plate being used to adhere to a battery; wherein the sensing plate can be pushed by the battery when the battery bulges to push the piston member to compress the space of the mark tube, so that the counting member moves to the area where the warning position mark is located in the mark tube; the receiving frame comprises: a containing cavity containing a fire retardant; an end plate abutting against the sensing plate; the sensing plate comprises a first sensing plate and a second sensing plate arranged oppositely; the end plate comprises a first end plate and a second end plate, the first end plate abutting against the first sensing plate, and the second end plate abutting against the second sensing plate; the battery bulging detection device further comprises an electrical connection strip for electrical connection of adjacent arranged batteries; wherein the first sensing plate and the second sensing plate can push the first end plate and the second end plate to move towards the side wall of the housing; both ends of the electrical connection strip comprise wire grooves with the same opening direction, the wire grooves being respectively used to adapt to the metal column of the adjacent arranged batteries; the electrical connection strip further comprises a limiting opening, the opening direction of the limiting opening being opposite to the opening direction of the wire grooves; the receiving frame comprises a limiting block, a part of the limiting block extending out of the surface of the receiving frame and cooperating with the limiting opening, another part of the limiting block being located in the containing cavity and connected with a tension plate, the first end plate and the second end plate bearing the tension plate; when the first end plate and the second end plate move towards the side wall of the housing to be close to the side wall of the housing, the tension plate can drive the limiting block to fall, the electrical connection strip rotates, and the electrical connection of the adjacent arranged batteries is disconnected.

2. The battery bulge detection device of claim 1, wherein The battery bulging detection device further comprises a buffer mechanism arranged between the sensing plate and the side wall of the housing, the buffer mechanism being used to buffer the pushing force applied by the sensing plate to the side wall of the housing when the sensing plate moves to be close to the side wall of the housing.

3. The battery bulge detection apparatus of claim 2, wherein The buffer mechanism comprises a blocking plate facing the side wall of the housing, the blocking plate abutting against the side wall of the housing or having a gap, and at least one elastic buffer member, one end of the at least one elastic buffer member being connected with the first side of the sensing plate, and the other end of the at least one elastic buffer member being connected with the blocking plate.

4. The battery bulge detection apparatus according to claim 3, characterized by The battery bulging detection device further comprises a connecting member comprising a first connecting part, a second connecting part and a third connecting part, the first connecting part being connected with the sensing plate, the second connecting part being connected with the at least one elastic buffer member, and the third connecting part being connected with the piston member; The blocking plate is provided with a small hole, and a piston member of the accommodating space is embedded in the small hole, and a gap exists between the blocking plate and the side wall of the shell; The connecting member is pushed by the induction plate to push the piston member and the buffer mechanism, so that after the blocking plate abuts against the shell, the at least one elastic buffer member can buffer the pushing force applied by the induction plate to the blocking plate or the shell.

5. The battery bulge detection apparatus of claim 1, wherein The battery bulging detection device further comprises a fire extinguishing mechanism arranged in the accommodating space, and when the induction plate moves to be close to the side wall of the shell, the induction plate can trigger the fire extinguishing mechanism to release the fire retardant.

6. The battery bulge detection apparatus of claim 5, wherein The fire extinguishing mechanism comprises a receiving frame, and the receiving frame comprises: A first overflow plate connected with the end plate, the first overflow plate comprising at least one first overflow hole; A second overflow plate comprising at least one second overflow hole, the at least one second overflow hole being misaligned with the at least one first overflow hole; When the induction plate moves to the side wall of the shell, the induction plate can push the end plate and the first overflow plate, so that the at least one first overflow hole is in communication with the at least one second overflow hole, and the fire retardant is overflowed from the accommodating cavity to the accommodating space.

7. The battery bulge detection apparatus of claim 1, wherein The battery bulging detection device further comprises: A heat dissipation hole in communication with a heat dissipation cavity, and the heat dissipation cavity being formed by the first side of the induction plate and the shell.

8. A battery device characterized by comprising: The battery bulging detection device comprises at least one battery and the battery bulging detection device according to any one of claims 1 to 7, and the at least one battery is located in the accommodating space and is attached to one side of the induction plate.

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