Explosion-proof valve, battery pack, and electric device

Abstract

Disclosed in the present disclosure are an explosion-proof valve, a battery pack, and an electric device. The explosion-proof valve comprises: a main body and at least one fastener, wherein a through hole is provided on the main body and the fastener is rotatably provided on the main body. The present disclosure solves the problem of poor connection reliability between an explosion-proof valve and a battery housing caused by the explosion-proof valve being difficult to install and the battery housing or the explosion-proof valve being prone to damage during installation.

Description

An explosion-proof valve, a battery pack and an electrical equipment

[0001] The present application claims priority to the Chinese patent application No. 202411383788.9, filed on September 27, 2024, and entitled "An explosion-proof valve, a battery pack and an electrical equipment", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The embodiments of the present disclosure relate to the technical field of battery, in particular to a battery pack and an electrical equipment. BACKGROUND

[0003] A battery is a power supply that provides a power source for tools, and is usually a storage battery or a rechargeable battery that provides power for electric vehicles, electric trains, electric bicycles and golf carts.

[0004] The current battery pack has an explosion-proof valve on the shell. One end of the explosion-proof valve is in communication with the inside of the battery pack, and the other end of the explosion-proof valve is in communication with the outside of the battery pack. If the internal pressure of the battery pack is greater than or equal to a preset pressure, the explosion-proof valve is opened to discharge the gas inside the battery pack to the outside of the battery pack to reduce the internal gas pressure of the battery pack.

[0005] The explosion-proof valve has the problems of difficult installation and easy damage to the battery shell or the explosion-proof valve during installation, resulting in poor connection reliability between the explosion-proof valve and the battery shell. SUMMARY

[0006] The embodiments of the present disclosure provide an explosion-proof valve, a battery pack and an electrical equipment, which can solve the problems of difficult installation and easy damage to the battery shell or the explosion-proof valve during installation, resulting in poor connection reliability between the explosion-proof valve and the battery shell.

[0007] The embodiments of the present disclosure provide the following technical solutions:

[0008] The first aspect of the embodiments of the present disclosure provides an explosion-proof valve, comprising:

[0009] a main body, wherein a through hole is formed in the main body;

[0010] at least one buckle, which is rotatably arranged on the main body.

[0011] It can be understood that the buckle is rotatably arranged on the main body, so that the main body is connected with the preset installation position through the buckle, thereby reducing the connection difficulty of the explosion-proof valve and the battery or the battery pack. The through hole can make the air in the battery or the battery pack and the air in the external environment flow, so that the air in the battery or the battery pack can be guided to the external environment after passing through the through hole, thereby protecting the battery or the battery pack.

[0012] In some embodiments, the plurality of buckles are arranged around and spaced apart from each other.

[0013] It can be understood that increasing the number of buckles can increase the connection strength between the explosion-proof valve and the battery or battery pack, so as to reduce the occurrence of the explosion-proof valve falling off relative to the battery or battery pack, thereby prolonging the safety performance of the explosion-proof valve and the battery or battery pack.

[0014] In some embodiments, the buckle comprises a clamping arm and a clamping jaw, and the clamping jaw is connected to the main body through the clamping arm.

[0015] It can be understood that the clamping arm is used to pass through the through hole, so that the clamping jaw can be connected with the through hole of the battery or battery pack, which has the advantage of easy installation.

[0016] In some embodiments, the buckle comprises a knob, the knob is connected with the clamping arm, and the knob is located on the side of the clamping arm away from the clamping jaw.

[0017] The main body is provided with a connecting hole, the clamping arm passes through the connecting hole and is connected with the knob; the knob is used to drive the clamping arm to rotate the clamping jaw relative to the main body.

[0018] It can be understood that the knob can provide a holding area for the buckle, so as to facilitate the operator to position and rotate the buckle, thereby reducing the difficulty of dismounting and installing the explosion-proof valve and the battery or battery pack, and improving the dismounting and installation efficiency of the explosion-proof valve.

[0019] In some embodiments, further comprising:

[0020] A first sealing ring is sleeved on the main body.

[0021] It can be understood that the first sealing ring can prevent air or water in the external environment from entering the battery or battery pack through the main body, thereby improving the safety performance of the explosion-proof valve and protecting the battery or battery pack.

[0022] In some embodiments, further comprising:

[0023] At least one second sealing ring is arranged on the main body, and the second sealing ring is arranged around the outer wall of the buckle.

[0024] It can be understood that the second sealing ring can prevent air or water in the external environment from entering the battery or battery pack through the connection between the buckle and the main body, thereby improving the safety performance of the explosion-proof valve and protecting the battery or battery pack.

[0025] In some embodiments, the plurality of buckles are arranged around and spaced apart from each other, and the plurality of second sealing rings are arranged one by one corresponding to the plurality of buckles.

[0026] It can be understood that the plurality of buckles are arranged in one-to-one correspondence with the plurality of second sealing rings, which can improve the sealing effect between the buckle and the main body, thereby improving the sealing effect between the explosion-proof valve and the battery or battery pack, thereby reducing the entry of water in the external environment into the battery or battery pack, and safely protecting the battery or battery pack.

[0027] In some embodiments, further comprising:

[0028] The waterproof and breathable film covers the through hole.

[0029] It can be understood that the through hole and the waterproof and breathable film can enable the air in the battery or battery pack to be in convection with the air in the external environment, so that the air in the battery or battery pack can be guided to the external environment after passing through the through hole and the waterproof and breathable film, and the waterproof and breathable film can block water or sand in the external environment, thereby reducing the entry of water or sand in the external environment into the battery or battery pack after passing through the through hole, and safely protecting the battery or battery pack.

[0030] In some embodiments, the main body comprises: a first shell and a second shell, the first shell and the second shell are connected, the first shell and the second shell enclose a protection cavity, and the through hole is arranged in the first shell.

[0031] It can be understood that the first shell is used to connect with the battery or battery pack, the second shell can block the impact of solid in the external environment on the waterproof and breathable film, thereby safely protecting the waterproof and breathable film, and the second shell can block water or sand in the external environment, thereby prolonging the service life of the waterproof and breathable film, safely protecting the battery or battery pack, and prolonging the service life of the explosion-proof valve.

[0032] In some embodiments, the clamping arm has a fracture point, and the cross-sectional area of the clamping arm at the fracture point is smaller than the cross-sectional area of the clamping arm at other positions.

[0033] It can be understood that the cross-sectional area of the clamping arm at the fracture point is smaller than the cross-sectional area of the clamping arm at other positions, so that the fracture point is more prone to breaking than other positions of the clamping arm, thereby improving the safety performance of the clamping arm.

[0034] In some embodiments, the through hole is located at the center of the main body, the plurality of buckles are distributed along the circumference of the through hole, and the buckle surrounds the outer periphery of the through hole.

[0035] It can be understood that the through hole is located at the center of the main body, the air inside the battery or the battery pack and the through hole can be guided out with increased efficiency, the buckles are arranged at intervals along the circumference of the through hole, and the buckles surround the outer periphery of the through hole, so that the stress concentration of the main body can be reduced, and the service life of the main body can be prolonged.

[0036] A second aspect of the embodiments of the present disclosure provides a battery pack, comprising a battery shell and an explosion-proof valve, wherein the explosion-proof valve is arranged on the battery shell.

[0037] The battery shell has a through hole, and part of the explosion-proof valve passes through the through hole and is connected to the battery shell.

[0038] In the case where the explosion-proof valve is arranged on the battery shell, the main body of the explosion-proof valve and the battery are combined to form a sealed cavity, part of the buckle of the explosion-proof valve passes through the through hole and is connected and fixed to the battery shell.

[0039] It can be understood that part of the buckle passes through the through hole on the battery pack, the buckle is connected to the battery shell, the connection difficulty of the buckle and the through hole on the battery pack can be reduced, the installation and disassembly efficiency of the main body and the battery pack can be improved, the main body can plug the through hole to protect the battery pack from water, and the battery shell or the explosion-proof valve will not be damaged during installation. After installation is completed, the explosion-proof valve and the battery pack can be stably connected to improve the connection reliability and strength of the explosion-proof valve and the battery pack.

[0040] In some embodiments, when the pressure in the sealed cavity is greater than or equal to the maximum compressive strength of the buckle, the buckle breaks, so that the main body is separated from the battery pack and the through hole is exposed.

[0041] It can be understood that if the internal pressure in the sealed cavity is greater than or equal to the maximum compressive strength of the buckle, the buckle breaks, the main body is separated from the battery pack, and the through hole is exposed, so that the through hole is in communication with the external environment, thereby accelerating the outflow of the pressure in the sealed cavity, and the battery pack is safely protected. Alternatively, if the internal pressure in the sealed cavity is greater than or equal to the maximum compressive strength of the buckle, the buckle breaks, and the internal pressure in the sealed cavity continues to increase, which causes the main body to be separated from the through hole under the push of the internal pressure in the sealed cavity, so that the explosion-proof valve is separated from the battery pack, and the through hole is in communication with the external environment, thereby accelerating the outflow of the pressure in the sealed cavity, and the battery pack is safely protected.

[0042] A third aspect of the embodiments of the present disclosure provides a power consumption device, comprising a power consumption device and a battery pack, and the battery pack is used to provide electric energy for the power consumption device. BRIEF DESCRIPTION OF DRAWINGS

[0043] FIG. 1 is a schematic view of a connection structure of an explosion-proof valve and a battery pack according to an embodiment of the present disclosure;

[0044] Fig. 2 is a schematic view of a connection structure of the explosion-proof valve and the battery pack according to an embodiment of the present disclosure;

[0045] Fig. 3 is a schematic view of a connection structure of the explosion-proof valve and the battery pack according to an embodiment of the present disclosure;

[0046] Fig. 4 is a schematic view of a connection structure of the explosion-proof valve and the battery pack according to an embodiment of the present disclosure;

[0047] Fig. 5 is a schematic view of a main body structure of the first shell according to an embodiment of the present disclosure;

[0048] Fig. 6 is a schematic view of a main body structure of the first shell according to an embodiment of the present disclosure.

[0049] Legend of reference numerals: 100-main body; 101-first shell; 102-second shell; 103-through hole; 104-waterproof air-permeable membrane; 105-connection hole; 200-buckle; 201-buckle arm; 202-buckle claw; 203-knob; 300-first sealing ring; 400-second sealing ring; 10-battery pack; 11-battery shell; 12-through hole. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of protection of the present disclosure.

[0051] The explosion-proof valve provided by the embodiments of the present disclosure has the buckle rotatably arranged on the main body, which can enable the main body to be connected with a preset installation position through the buckle, thereby reducing the connection difficulty of the explosion-proof valve and the battery or the battery pack. The through hole can enable the air in the battery or the battery pack to be in convection with the air in the external environment, so that the air in the battery or the battery pack can be guided to the external environment after passing through the through hole, thereby protecting the battery or the battery pack.

[0052] As shown in Fig. 1 and Fig. 2, the explosion-proof valve provided by the embodiments of the present disclosure includes a main body 100 and at least one buckle 200. The main body 100 is provided with a through hole 103, and the buckle 200 is rotatably arranged on the main body 100.

[0053] The explosion-proof valve has a plurality of different installation positions, and the installation positions of the explosion-proof valve will be described in turn below.

[0054] In some embodiments, the explosion-proof valve is installed in the through hole 12 of the battery by the buckle 200, and the explosion-proof valve is used to guide the air in the battery to the outside environment through the through hole 103, so as to protect the battery.

[0055] In some embodiments, the explosion-proof valve is installed in the through hole 12 of the battery pack 10 by the buckle 200, and the explosion-proof valve is used to guide the air in the battery pack 10 to the outside environment through the through hole 103, so as to protect the battery pack 10.

[0056] It can be understood that the installation position of the explosion-proof valve is not limited, and can be selected according to actual use requirements.

[0057] In the case of installing the explosion-proof valve and the battery or the battery pack 10, part of the main body 100 isolates the battery or the battery pack 10 from the outside environment, so as to protect the battery or the battery pack 10 from water and isolation; the through hole 103 is in communication with the outside environment, and the high-pressure gas in the battery or the battery pack 10 can be guided to the outside environment through the through hole 103, thereby protecting the battery pack 10 from explosion.

[0058] As shown in FIG. 3 and FIG. 4, the buckle 200 provided by the embodiment of the present disclosure includes a clamping arm 201 and a clamping jaw 202, and the clamping jaw 202 is connected to the main body 100 through the clamping arm 201.

[0059] The clamping jaw 202 is used to connect with the through hole 12 of the battery or the battery pack 10.

[0060] It can be understood that the clamping arm 201 is used to pass through the through hole 12, so that the clamping jaw 202 can be connected with the through hole 12 of the battery pack 10, which has the advantage of easy installation.

[0061] The clamping arm 201 has a fracture point, and the cross-sectional area of the clamping arm 201 at the fracture point is smaller than the cross-sectional area of the clamping arm 201 at other positions. The fracture point is configured to be located at the smallest cross section of the clamping arm 201 along the extension direction of the clamping arm 201.

[0062] It can be understood that the cross-sectional area of the clamping arm 201 at the fracture point is smaller than the cross-sectional area of the clamping arm 201 at other positions, so that the fracture point can be more easily broken relative to other positions of the clamping arm 201, thereby improving the safety performance of the clamping arm 201.

[0063] The maximum compressive strength of the fracture point is smaller than the maximum compressive strength of the clamping arm 201 at other positions, so that the fracture point can be more easily broken relative to other positions of the clamping arm 201, thereby improving the safety performance of the clamping arm 201.

[0064] The fracture point has a plurality of different setting modes, which will be illustrated in turn as follows.

[0065] In some embodiments, the cross-sectional dimension of the breaking point is smaller than the cross-sectional dimension of other locations of the clamping arm 201 along the extension direction of the clamping arm 201.

[0066] It can be understood that the cross-sectional dimension of the breaking point is smaller than the cross-sectional dimension of other locations of the clamping arm 201, so that the maximum compressive strength of the breaking point is smaller than the maximum compressive strength of other locations of the clamping arm 201, thereby making the breaking point more likely to break than other locations of the clamping arm 201, thereby improving the safety performance of the clamping arm 201.

[0067] In some embodiments, the cross-sectional dimension of the breaking point is smaller than the cross-sectional dimension of other locations of the clamping arm 201 along the extension direction of the clamping arm 201.

[0068] It can be understood that the cross-sectional dimension of the breaking point is smaller than the cross-sectional dimension of other locations of the clamping arm 201, so that the maximum compressive strength of the breaking point is smaller than the maximum compressive strength of other locations of the clamping arm 201, thereby making the breaking point more likely to break than other locations of the clamping arm 201, thereby improving the safety performance of the clamping arm 201.

[0069] It can be understood that the breaking point is not limited in the manner of setting, and can be selected according to actual use requirements.

[0070] It can be understood that the specific setting manner of the breaking point is not limited, and can be selected according to actual use requirements.

[0071] The clasp 200 provided by the embodiments of the present disclosure is provided in a plurality, and the plurality of clasps 200 are arranged in a ring and at intervals.

[0072] It can be understood that increasing the number of clasps 200 arranged can improve the connection strength between the explosion-proof valve and the battery or battery pack 10, so as to reduce the occurrence of the explosion-proof valve falling off relative to the battery or battery pack 10, thereby prolonging the safety performance of the explosion-proof valve and the battery or battery pack 10.

[0073] The number of clasps 200 has various different setting manners, which will be illustrated in turn below.

[0074] In some embodiments, the clasp 200 is provided in three, and the three clasps 200 are arranged in a ring and at intervals on the main body 100.

[0075] It can be understood that arranging three clasps 200 can balance the connection force between the explosion-proof valve and the battery or battery pack 10, thereby improving the stability between the explosion-proof valve and the battery or battery pack 10, so as to reduce the occurrence of the explosion-proof valve falling off relative to the battery or battery pack 10, thereby improving the stability performance of the connection between the explosion-proof valve and the battery pack 10.

[0076] In some embodiments, four buckles 200 are arranged on the main body 100 in a ring shape and at intervals.

[0077] It can be understood that the arrangement of four buckles 200 can balance the connection force between the explosion-proof valve and the battery or battery pack 10, thereby improving the connection strength between the explosion-proof valve and the battery or battery pack 10, and increasing the contact area between the buckle 200 and the battery or battery pack 10 to reduce the occurrence of the explosion-proof valve falling off the battery or battery pack 10, thereby prolonging the safety performance of the explosion-proof valve and the battery pack 10.

[0078] It can be understood that the number of buckles 200 is not limited in arrangement and can be selected according to actual use requirements.

[0079] The buckle 200 provided by the embodiments of the present disclosure includes a knob 203, the knob 203 is connected with the clamping arm 201, and the knob 203 is located on the side of the clamping arm 201 away from the clamping jaw 202; the main body 100 is provided with a connecting hole 105, the clamping arm 201 penetrates the connecting hole 105 and is connected with the knob 203; the knob 203 is used to drive the clamping arm 201 to rotate the clamping jaw 202 relative to the main body 100.

[0080] The battery or battery pack 10 is provided with a through hole 12, the through hole 12 is used to connect with the buckle 200, so that the explosion-proof valve is installed on the battery or battery pack 10 through the buckle 200; when the buckle 200 penetrates into the through hole 12, the clamping jaw 202 is arranged at the position close to the axis of the through hole 12 and is spaced apart from the through hole 12; when the buckle 200 is installed on the through hole 12, the clamping arm 201 rotates relative to the main body 100 and drives the clamping jaw 202 to rotate to the position away from the axis of the connecting hole 105, so as to be connected to the through hole 12.

[0081] It can be understood that the arrangement of the knob 203 can provide a holding area for the buckle 200, so as to facilitate the positioning and rotation of the buckle 200 by the operator, thereby reducing the difficulty of dismounting and installing the explosion-proof valve and the battery or battery pack 10, and improving the dismounting and installing efficiency of the explosion-proof valve.

[0082] It can be understood that the knob 203 can be driven by a first external force to rotate relative to the main body 100, and drive the clamping arm 201 to rotate relative to the main body 100, so as to drive the clamping jaw 202 to be connected with the battery or battery pack 10, thereby installing the main body 100 to the battery or battery pack 10, so as to realize the installation of the explosion-proof valve and the battery or battery pack 10.

[0083] It can be understood that the knob 203 can be driven to rotate relative to the main body 100 under the second external force, and drive the clamping arm 201 to rotate relative to the main body 100, so as to drive the clamping jaw 202 to separate from the battery or battery pack 10, thereby disassembling the main body 100 from the battery or battery pack 10, so as to realize the disassembly of the explosion-proof valve and the battery or battery pack 10.

[0084] The first external force and the second external force are opposite in direction.

[0085] The explosion-proof valve provided by the embodiments of the present disclosure further comprises a first sealing ring 300, and the first sealing ring 300 is sleeved on the main body 100.

[0086] In the case where the explosion-proof valve is connected with the battery or battery pack 10, the first sealing ring 300 is in sealing connection with the battery or battery pack 10.

[0087] It can be understood that the first sealing ring 300 can prevent air or water in the external environment from entering the battery or battery pack 10 through the main body 100, thereby improving the safety performance of the explosion-proof valve and protecting the battery or battery pack 10.

[0088] The first sealing ring 300 has a plurality of different setting modes, and the setting modes of the first sealing ring 300 will be described in turn below.

[0089] In some embodiments, the first sealing ring 300 is a first rubber ring, the inner ring of the first rubber ring is sleeved on the outer peripheral wall of the main body 100, and part of the outer ring of the first rubber ring is in sealing connection with the battery or battery pack 10. The first rubber ring can prevent water or sand in the external environment from entering the battery pack 10 through the gap between the main body 100 and the battery or battery pack 10, thereby protecting the battery or battery pack 10.

[0090] In some embodiments, the first sealing ring 300 is a first silicone rubber ring, the inner ring of the first silicone rubber ring is sleeved on the outer peripheral wall of the main body 100, and part of the outer ring of the first silicone rubber ring is in sealing connection with the battery or battery pack 10. The first silicone rubber ring can prevent water or sand in the external environment from entering the battery pack 10 through the gap between the main body 100 and the battery or battery pack 10, thereby protecting the battery or battery pack 10, and the first silicone rubber ring has aging resistance and weather resistance, which can prolong the service life of the first silicone rubber ring and prolong the service life of the explosion-proof valve.

[0091] It can be understood that the setting mode of the first sealing ring 300 is not limited and can be selected according to actual use requirements.

[0092] As shown in FIG. 5, the explosion-proof valve provided by the embodiment of the present disclosure further comprises at least one second sealing ring 400, which is arranged on the main body 100 and surrounds the outer peripheral wall of the buckle 200.

[0093] It can be understood that the arrangement of the second sealing ring 400 can isolate the air or water in the external environment from entering the battery or battery pack 10 through the connection between the buckle 200 and the main body 100, thereby improving the safety performance of the explosion-proof valve and protecting the battery or battery pack 10.

[0094] The second sealing ring 400 is interference filled between the buckle 200 and the main body 100 to improve the sealing effect of the second sealing ring 400.

[0095] The second sealing ring 400 has a plurality of different arrangement modes, which will be illustrated in turn below.

[0096] In some embodiments, the second sealing ring 400 is a second rubber ring, the inner ring of the second rubber ring is sleeved on the outer peripheral wall of the buckle 200, and part of the outer ring of the second rubber ring is sealingly connected with the main body 100. The second rubber ring can block the water or sand in the external environment from entering the battery or battery pack 10 through the gap between the connection of the buckle 200 and the main body 100, thereby protecting the battery or battery pack 10.

[0097] In some embodiments, the second sealing ring 400 is a second silicone rubber ring, the inner ring of the second silicone rubber ring is sleeved on the outer peripheral wall of the buckle 200, and part of the outer ring of the second silicone rubber ring is sealingly connected with the main body 100. The second silicone rubber ring can block the water or sand in the external environment from entering the battery or battery pack 10 through the gap between the connection of the buckle 200 and the main body 100, thereby protecting the battery or battery pack 10, and the second silicone rubber ring has aging resistance and weather resistance, which can prolong the service life of the second silicone rubber ring and the service life of the explosion-proof valve.

[0098] It can be understood that the arrangement mode of the second sealing ring 400 is not limited and can be selected according to actual use requirements.

[0099] The buckle 200 is provided in plurality, the second sealing ring 400 is provided in plurality, and the plurality of buckles 200 and the plurality of second sealing rings 400 are arranged one by one.

[0100] It can be understood that the plurality of buckles 200 and the plurality of second sealing rings 400 are one-to-one corresponding, which can improve the sealing effect between the buckle 200 and the main body 100, improve the sealing effect between the explosion-proof valve and the battery or the battery pack 10, and reduce the occurrence of water in the external environment entering the battery or the battery pack 10, thereby protecting the battery or the battery pack 10.

[0101] The number of the second sealing ring 400 is not limited, and the number of the second sealing ring 400 is exemplified in turn.

[0102] In some embodiments, when the buckle 200 is provided with three, the second sealing ring 400 is provided with three, and the buckle 200 and the second sealing ring 400 are one-to-one corresponding.

[0103] It can be understood that the second sealing ring 400 is provided with three, and the three sealing rings can seal the connection position between the buckle 200 and the main body 100, respectively, to prevent water in the external environment from entering the battery or the battery pack 10, thereby protecting the battery pack 10.

[0104] In some embodiments, when the buckle 200 is provided with four, the second sealing ring 400 is provided with four, and the buckle 200 and the second sealing ring 400 are one-to-one corresponding.

[0105] It can be understood that the second sealing ring 400 is provided with four, and the four sealing rings can seal the connection position between the buckle 200 and the main body 100, respectively, to prevent water in the external environment from entering the battery or the battery pack 10, thereby protecting the battery or the battery pack 10.

[0106] It can be understood that the number of the second sealing ring 400 is not limited, and the number of the second sealing ring 400 can be selected according to actual use requirements, as long as the number of the buckle 200 and the number of the second sealing ring 400 are the same, and one buckle 200 corresponds to one second sealing ring 400.

[0107] As shown in FIG. 6, the explosion-proof valve provided by the embodiment of the present disclosure further comprises a waterproof and breathable film 104, and the waterproof and breathable film 104 covers the through hole 103.

[0108] The through hole 103 and the waterproof and breathable film 104 can enable air in the battery pack 10 to be in convection with air in the external environment, so that air in the battery or the battery pack 10 can be guided to the external environment through the through hole 103 and the waterproof and breathable film 104, and the waterproof and breathable film 104 can block water or sand in the external environment, thereby reducing the occurrence of water or sand in the external environment entering the inside of the battery or the battery pack 10 through the through hole 103, so as to protect the battery or the battery pack 10.

[0109] The main body 100 provided by the embodiment of the present disclosure comprises: a first shell 101 and a second shell 102, the first shell 101 and the second shell 102 are connected, the first shell 101 and the second shell 102 enclose a protection cavity, and the through hole 103 is arranged on the first shell 101.

[0110] The first shell 101 is located on the side of the second shell 102 close to the battery or the battery pack 10 and abuts against the battery pack 10.

[0111] It can be understood that the first shell 101 is used to be connected with the battery or the battery pack 10, the second shell 102 can block the impact of solids in the external environment on the waterproof and breathable film 104, thereby protecting the waterproof and breathable film 104, and the second shell 102 can block water or sand in the external environment, thereby prolonging the service life of the waterproof and breathable film 104, thereby protecting the battery or the battery pack 10, and prolonging the service life of the explosion-proof valve.

[0112] The first shell 101 and the second shell 102 are connected through the buckle 200 and the clamping groove, the buckle 200 is arranged on the first shell 101, the clamping groove is arranged on the second shell 102, and the buckle 200 and the clamping groove are arranged in a matched mode.

[0113] The gas in the protection cavity can pass through the installation gap between the first shell 101 and the second shell 102 and be guided to the external environment, thereby playing a pressure relief role.

[0114] The through hole 103 is located at the center of the main body 100, the plurality of buckles 200 are distributed along the circumference of the through hole 103 at intervals, and the buckle 200 surrounds the outer periphery of the through hole 103.

[0115] It can be understood that the through hole 103 is located at the center of the main body 100, which can increase the discharge efficiency between the air in the battery or the battery pack 10 and the through hole 103, the buckle 200 is distributed along the circumference of the through hole 103 at intervals, and the buckle 200 surrounds the outer periphery of the through hole 103, which can reduce the occurrence of stress concentration of the main body 100, thereby prolonging the service life of the main body 100.

[0116] The battery pack 10 provided by the embodiments of the present disclosure comprises a battery shell 11, and an explosion-proof valve is arranged on the battery shell 11; the battery shell 11 has a through hole 12, and a part of the explosion-proof valve is connected to the battery shell 11 through the through hole 12; in the case that the explosion-proof valve is arranged on the battery shell 11, a main body 100 of the explosion-proof valve and the battery pack 10 enclose a sealed cavity, and a part of a buckle 200 of the explosion-proof valve passes through the through hole 12 and is connected and fixed with the battery shell 11.

[0117] It can be understood that the part of the buckle 200 passes through the through hole 12 on the battery pack 10, and the buckle 200 is connected with the battery shell 11, which can reduce the connection difficulty of the buckle 200 and the through hole 12 on the battery pack 10, improve the installation and disassembly efficiency of the main body 100 and the battery pack 10, the main body 100 can plug the through hole 12 to protect the battery pack 10 from water, and the installation process will not damage the battery shell 11 or the explosion-proof valve, and after the installation is completed, the explosion-proof valve and the battery pack 10 can be stably connected to improve the connection reliability and connection strength of the explosion-proof valve and the battery pack 10.

[0118] When the pressure in the sealed cavity is greater than or equal to the maximum compression resistance of the buckle 200, the buckle 200 is broken, so that the main body 100 is separated from the battery pack 10 and the through hole 12 is exposed.

[0119] It can be understood that if the internal pressure in the sealed cavity is greater than or equal to the maximum compression resistance of the buckle 200, the buckle 200 is broken, the main body 100 is separated from the battery pack 10, and the through hole 12 is exposed, so that the through hole 12 is connected with the external environment, thereby accelerating the outflow of the pressure in the sealed cavity, to protect the battery pack 10; or if the internal pressure in the sealed cavity is greater than or equal to the maximum compression resistance of the buckle 200, the buckle 200 is broken, and the internal pressure in the sealed cavity continues to increase, which will cause the main body 100 to be separated from the through hole 12 under the pushing of the internal pressure in the sealed cavity, so that the explosion-proof valve is separated from the battery pack 10, and the through hole 12 is connected with the external environment, thereby accelerating the outflow of the pressure in the sealed cavity, to protect the battery pack 10.

[0120] The embodiments of the present disclosure also provide a power consumption device, which comprises a power consumption device and the battery pack 10 described in any of the above embodiments, and the battery pack 10 is used to provide electric energy for the power consumption device.

[0121] The power consumption device in the embodiments of the present disclosure can be a vehicle, for example: the vehicle can be a fuel automobile, a gas automobile or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile or a range extended automobile, etc. Correspondingly, the power consumption device can be a driving mechanism of the vehicle, or a control system of the vehicle.

[0122] In addition, the electrical equipment can also be used for other energy storage devices, such as mobile phones, portable devices, notebook computers, electric toys, electric tools, ships and spacecraft, wherein the spacecraft can include an airplane, a rocket, a space shuttle or a spaceship.

[0123] Since the electrical equipment in the embodiment includes the battery pack 10 described in any of the above embodiments, the electrical equipment includes the structure and advantages of the battery pack 10, and the embodiment will not be described here.

[0124] Wherein, the terms such as "upper", "lower" and the like are used to describe the relative position relationship of each structure in the drawings, which is only for the convenience of clear description, and does not limit the scope of the disclosure, and the change or adjustment of the relative relationship is also considered as the scope of the disclosure without substantially changing the technical content.

[0125] It should be noted that: in the disclosure, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0126] In addition, in the disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the disclosure can be understood according to the specific circumstances.

[0127] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0128] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present disclosure, but not to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A valve for preventing explosion, comprising: a main body (100) having a through hole (103) formed therein; at least one buckle (200) rotatably arranged on the main body (100). 2.The valve for preventing explosion according to claim 1, wherein a plurality of buckles (200) are arranged around and spaced apart from each other. 3.The valve for preventing explosion according to claim 1, wherein the buckle (200) comprises a clamping arm (201) and a clamping jaw (202), and the clamping jaw (202) is connected to the main body (100) through the clamping arm (201). 4.The valve for preventing explosion according to claim 3, wherein the buckle (200) comprises a knob (203) connected to the clamping arm (201), and the knob (203) is located on the side of the clamping arm (201) away from the clamping jaw (202); a connecting hole (105) is formed on the main body (100), the clamping arm (201) passes through the connecting hole (105) and is connected to the knob (203), and the knob (203) is used to drive the clamping arm (201) to rotate the clamping jaw (202) relative to the main body (100). 5.The valve for preventing explosion according to claim 1, further comprising: a first sealing ring (300) sleeved on the main body (100). 6.The valve for preventing explosion according to claim 1, further comprising: at least one second sealing ring (400) arranged on the main body (100) and surrounding the outer circumferential wall of the buckle (200). 7.The valve for preventing explosion according to claim 6, wherein a plurality of buckles (200) and a plurality of second sealing rings (400) are arranged one by one. 8.The valve for preventing explosion according to any one of claims 1-7, further comprising: a waterproof and breathable membrane (104) covering the through hole (103); 9. An explosion relief valve according to any one of claims 1-7, said main body (100) comprising: a first housing (101) and a second housing (102) connected to each other; the first housing (101) and the second housing (102) form a protection cavity, and the through hole (103) is arranged in the first housing (101). 10.The valve for preventing explosion according to any one of claims 1-7, wherein the clamping arm (201) has a breaking point, and the cross-sectional area of the clamping arm (201) at the breaking point is smaller than that of the clamping arm (201) at other positions. 11.The valve for preventing explosion according to any one of claims 1-7, wherein the through hole (103) is located at the center of the main body (100), a plurality of buckles (200) are arranged along the circumference of the through hole (103) and spaced apart from each other, and the buckles (200) surround the outer circumference of the through hole (103).

12. A battery pack comprising a battery housing (11) and an explosion-proof valve according to any one of claims 1-11, the explosion-proof valve being arranged on the battery housing (11); the battery housing (11) has a through hole (12), and a part of the explosion-proof valve is connected to the battery housing (11) through the through hole (12); when the explosion-proof valve is arranged on the battery housing (11), the main body (100) of the explosion-proof valve and the battery pack (10) enclose a sealed cavity, and a part of the buckle (200) of the explosion-proof valve passes through the through hole (12) and is connected and fixed with the battery housing (11).

13. The battery pack according to claim 12, when the pressure in the sealed cavity is greater than or equal to the maximum compressive strength of the buckle (200), the buckle (200) breaks, so that the main body (100) is separated from the battery pack (10), and the through hole (12) is exposed.

14. An electric device comprising an electric device and a battery pack according to claim 12 or 13, the battery pack (10) being used to provide electric energy for the electric device.

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