CN219457925U

CN219457925U - Screw-in type buckle explosion-proof valve

Info

Publication number: CN219457925U
Application number: CN202223208133.7U
Authority: CN
Inventors: 张余
Original assignee: Dongguan Hengjin Metal Products Co ltd
Current assignee: Dongguan Hengjin Metal Products Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-08-01
Anticipated expiration: 2032-11-30

Abstract

The utility model relates to the technical field of explosion-proof valves, and discloses a screw-in buckle explosion-proof valve, which comprises a valve top cover, a waterproof breathable film, a valve core assembly, a valve shell and an outer sealing ring; the screw-in type buckle explosion-proof valve integrates the functions of water resistance, ventilation, explosion resistance and the like, has the advantages of being low in assembly cost, less in assembly time consumption, high in assembly efficiency and the like, reduces the manufacturing cost, can be installed by using an installation tool in occasions with narrower installation space and limited installation height, is stable in installation, high in reliability, can be operated in a narrow installation space, is rapid in installation, is less in time consumption, is less in application limit, is less in operation limit of a client side, and can greatly improve the installation efficiency of a product.

Description

Screw-in type buckle explosion-proof valve

Technical Field

The utility model belongs to the technical field of explosion-proof valves, and particularly relates to a screw-in buckle explosion-proof valve.

Background

With the rapid increase of the safety of electric vehicles in China, the problems of fire and combustion accident frequency of the electric vehicles are important points of attention of consumers, the electric safety and functional safety requirements of the electric vehicles are mainly regulated in the electric vehicle safety requirements, the requirements of the electric vehicles on water resistance, thermal diffusion passenger protection and the like are enhanced, so that the safety risks of the vehicles under the conditions of normal use, wading and the like are reduced, the safe and reliable operation of core components such as a battery PACK, an electric control and a motor in an electric vehicle power system is critical, the safe and stable operation of the electric vehicles is required to be realized, namely the electric vehicles are required to be completely sealed in theory, but under the conditions of extreme charging and discharging, extreme high and low temperature conditions and the like, the gas pressure in a battery PACK box body is greatly changed, obvious positive pressure (the gas pressure in the battery PACK box body is higher than the outside) or negative pressure (the gas pressure in the battery PACK box body is lower than the outside), the gas exchange is required to be carried out by using a balance valve and a ventilation valve product, the gas pressure difference in the battery PACK body and the outside is prevented, the battery PACK box body is prevented from being damaged by the gas pressure difference in the normal use, the explosion valve or the explosion valve is also required to be arranged in the air-proof state, the case of the explosion accident condition, the inner side is also is required to be the case of the explosion valve is required to be completely sealed in the explosion accident condition, and the explosion accident condition is caused by the explosion of the battery PACK is caused, and the explosion accident condition is caused by the inner valve is in the explosion-proof valve is in the explosion condition, the existing explosion-proof valve is general in protection level, general in ventilation effect, high in installation cost and low in installation efficiency, and cannot meet the requirements of mass installation.

Disclosure of Invention

The utility model aims at the screw-in type buckle explosion-proof valve of the existing device, and has the advantages of improving the installation efficiency and reducing the cost.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a screw in formula buckle explosion-proof valve, includes valve top cap, waterproof ventilated membrane, case subassembly, valve casing and outer sealing washer, the inboard and the outside of outer sealing washer are all fixed mounting has protruding structure, the sealing washer groove that cooperation protruding structure joint was used has been seted up to the bottom of valve casing, one side fixed mounting of case subassembly has the disconnect-type buckle, the centre bore that cooperation disconnect-type buckle joint was used has been seted up to the inside of valve casing, one side of case subassembly is through pasting and waterproof ventilated membrane fixed surface connection, the inner circle fixed mounting of valve top cap has protruding buckle, draw-in groove one that cooperation protruding buckle joint was used has been seted up on the surface of valve casing one end, the surface fixed mounting of valve casing one side has circular buckle, the clamping recess has been seted up to the outer lane of valve casing and protruding muscle.

The technical scheme is adopted: when the rotary type buckle explosion-proof valve is installed, the bulge structure is clamped with the sealing ring groove, the installation of the outer sealing ring and the valve shell is realized, the separation type buckle is clamped with the center hole, the sealing structure is tightly attached to the sealing surface of the valve shell, the sealing protection function is realized, the installation of the valve core component and the valve shell is realized, the buckling characteristics of the separation type buckle are increased by the hard plastic material, the tightness of the sealing structure is improved by the silica gel material, the valve core component and the waterproof breathable film are fixed through welding or pasting, then the valve top cover is pressed downwards, the bulge buckle is clamped with the clamping groove I, the valve top cover and the valve shell are fixed, the explosion-proof valve and the valve shell are clamped with the clamping groove II, the explosion-proof valve is rotated, the circular buckle is clamped in the clamping groove II of the battery pack box, the installation is completed, the rotation and displacement are prevented, the explosion-proof valve is prevented from rotating after the explosion-proof valve is installed into the battery pack box, the explosion-proof valve is prevented from falling off, the explosion-proof valve and the sealing protection valve is installed into the sealing structure through the sealing structure, the sealing protection valve is balanced with the sealing protection structure, and the sealing protection valve is realized, and the sealing protection valve is protected by the sealing protection structure is opened, and the sealing protection device is protected; the waterproof ventilation membrane device is arranged on one side of the valve core component, when the pressure difference of gas exists between the inner part and the outer part of the battery pack, the gas flows to the side with low pressure from the side with high pressure, thereby realizing the functions of ventilation and balancing the pressure difference of the gas inside and outside the battery pack, and under the explosion-proof opening state of the explosion-proof valve, the waterproof ventilation membrane device plays roles of quickly exhausting and releasing pressure, preventing the explosion of the battery pack box body and the like, when the battery core in the battery pack has unexpected short circuit, the explosion of the battery core and other abnormal accidents caused by thermal runaway, the battery core can rapidly discharge a large amount of gas, gas-solid mixture, jelly, dust substances and the like, so that the temperature and the gas pressure in the battery pack can be rapidly increased, at the moment, the sealing structural member on the outer side of the piston valve core component can be outwards deformed and turned up, thereby opening a quick exhaust channel, quickly exhausting and releasing pressure, avoiding serious accidents such as explosion and disasters of the battery pack caused by untimely discharge, the screw-in type buckle explosion-proof valve integrates the functions of water resistance, ventilation, explosion prevention and the like, compared with the conventional explosion-proof valve, the cost is greatly reduced, the cost of the battery pack is reduced, the screw-in type buckle explosion-proof valve is small in number of parts, assembly can be completed only by assembling parts with 4 simple steps, the assembly process is simple, special assembly machines, equipment and jigs are not needed, the screw-in type buckle explosion-proof valve has the advantages of low assembly cost, less assembly time consumption, high assembly efficiency and the like, the manufacturing cost is further reduced, the screw-in type buckle explosion-proof valve can utilize an installation tool to complete the installation with a battery pack box body in the occasions of narrow installation space and limited installation height, the installation mode is stable in installation and high in reliability, and can be operated in a narrow installation space, the installation is quick and the time consumption is less, so that the application limit of the explosion-proof valve is less, the operation limit of a client is reduced, and the installation efficiency can be greatly improved.

The utility model further provides that the outer ring of the valve core assembly is fixedly connected with a sealing structural member.

The technical scheme is adopted: the sealing structure part plays a role of sealing and protecting.

The utility model further provides that the separating buckle is made of hard plastic, and the sealing structural member is made of silica gel.

The technical scheme is adopted: the buckle characteristic of the separation type buckle is increased by the hard plastic material, and the sealing performance of the sealing structural part is improved by the silica gel material.

The utility model is further characterized in that one side of the valve shell is provided with a battery pack box body which is matched and installed, and a clamping groove II which is matched with the circular buckle for clamping is formed in the battery pack box body.

The technical scheme is adopted: the round buckle is clamped in the second clamping groove, so that the installation is completed.

The utility model is further characterized in that an anti-falling groove is formed in one side of the valve shell and positioned on one side of the round buckle.

The technical scheme is adopted: the anti-falling groove is used for preventing rotation and displacement, so that the anti-explosion valve cannot rotate after being installed into the battery pack box body, and is prevented from falling off.

The utility model further provides that one side of the valve shell is provided with a matched installation tool, and the inner ring of the tool is fixedly provided with a clamping baffle matched with the clamping groove for clamping.

The technical scheme is adopted: the clamping groove and the protruding rib are connected with the clamping stop plate in a clamping way, so that the anti-rotation effect is achieved.

The valve is further arranged in such a way that one side of the valve shell is a sealing surface, and the sealing surface is matched with the valve core assembly to be installed and closely attached to one side of the sealing structural part.

The technical scheme is adopted: the sealing structural member is tightly attached to the sealing surface of the valve housing, so that the sealing protection function is realized.

According to the similar scheme, the valve core assembly can be of a solid structure, and a waterproof and breathable film is not needed.

In summary, the utility model has the following beneficial effects:

1. the screw-in type buckle explosion-proof valve integrates the functions of water resistance, ventilation, explosion prevention and the like, compared with the conventional explosion-proof valve, the cost is greatly reduced, the cost of a battery pack is reduced, the number of parts of a screw-in type buckle explosion-proof valve product is small, the assembly can be completed only by assembling the parts through 4 simple steps, the assembly process is simple, a specific assembly machine, equipment and a jig are not needed, the assembly cost is low, the assembly time is less, the assembly efficiency is high and the like, so that the manufacturing cost is further reduced, the screw-in type buckle explosion-proof valve can be installed with a battery pack box body by using an installation tool under the occasions that the installation space is narrow and the installation height is limited, the installation mode is stable and high in reliability, and meanwhile, the operation in the narrow installation space, the installation speed and the time are low, so that the application limit of the explosion-proof valve is less, the operation limit of a client is reduced, and the installation efficiency of the product is greatly improved.

Drawings

FIG. 1 is a schematic diagram of the front of the structure of the present utility model;

FIG. 2 is a schematic view of the bottom surface of the structure of the present utility model;

FIG. 3 is an exploded view of the structure of the present utility model;

FIG. 4 is a schematic view of the assembly of the valve housing and the outer seal ring of the present utility model;

FIG. 5 is a schematic illustration of the assembly of a valve housing and a valve core assembly of the present utility model;

FIG. 6 is a schematic diagram of the assembly of the valve core assembly and the waterproof and breathable membrane of the present utility model;

FIG. 7 is a schematic view of the assembly of the valve cover and valve housing of the present utility model;

FIG. 8 is a schematic view of the mounting of the structure and the case simulation mounting plate of the present utility model;

FIG. 9 is a schematic diagram of the installation of the tool for simulating the installation of the structure and the explosion-proof valve.

FIG. 10 is an explosion schematic diagram of an explosion-proof valve approximation scheme of the structure of the present utility model

Reference numerals: 1. a valve top cover; 11. the protrusion is buckled; 2. a waterproof breathable film; 3. a valve core assembly; 31. a separate buckle; 32. sealing the structural member; 4. a valve housing; 41. a seal ring groove; 42. a central bore; 43. sealing surfaces; 44. a clamping groove I; 45. a round buckle; 46. a locking groove; 47. an anti-drop groove; 48. a protruding rib; 5. an outer seal ring; 51. a bump structure; 6. a battery pack case; 61. a clamping groove II; 7. tool for simulating installation of explosion-proof valve; 71. and (5) clamping the baffle.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

Examples:

referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9 and fig. 10, the screw-in type buckle explosion-proof valve comprises a valve top cover 1, a waterproof breathable film 2, a valve core assembly 3, a valve shell 4 and an outer sealing ring 5, wherein a convex structure 51 is fixedly arranged on the inner side and the outer side of the outer sealing ring 5, a sealing ring groove 41 which is used for being matched with the convex structure 51 in a clamping manner is formed in the bottom of the valve shell 4, a separation type buckle 31 is fixedly arranged on one side of the valve core assembly 3, a central hole 42 which is used for being matched with the separation type buckle 31 in a clamping manner is formed in the interior of the valve shell 4, a convex buckle 11 is fixedly arranged on the inner ring of the valve top cover 1 through welding or pasting, a clamping groove I44 which is used for being matched with the convex buckle 11 in a clamping manner is formed on the surface of one end of the valve shell 4, a round buckle 45 is fixedly arranged on the surface on one side of the valve shell 4, the outer lane of valve casing 4 has been seted up card end groove 46 and protruding muscle 48, the outer lane fixedly connected with seal structure 32 of case subassembly 3, seal structure 32 plays sealed protection's function, separation formula buckle 31 is hard plastics material, seal structure 32 is the silica gel material, the buckle characteristic of separation formula buckle 31 is increased to hard plastics material, the leakproofness of seal structure 32 is to be improved to the silica gel material, one side of valve casing 4 is equipped with the battery package box 6 of cooperation installation, draw-in groove two 61 that cooperation circular buckle 45 joint was used are seted up to the inside of battery package box 6, through with circular buckle 45 card dead in draw-in groove two 61, thereby accomplish the installation, the anti-disengaging groove 47 has been seted up to the inside of valve casing 4 one side and be located circular buckle 45 one side, anti-disengaging groove 47 is used for preventing rotation and displacement, make the explosion-proof valve can not rotate after the installation gets into battery package box 6 Thereby prevent that it from droing, one side of valve casing 4 is equipped with cooperation installation frock 7, the inner circle fixed mounting of frock 7 has cooperation locking recess 46 joint to use the locking baffle 71, through the joint of locking recess 46 and protruding muscle 48 and locking baffle 71, play fixed anti-rotation's effect, one side of valve casing 4 is sealed face 43, sealed face 43 cooperation case subassembly 3 installs and closely laminates with sealed structure 32 one side, sealed structure 32 hugs closely in sealed face 43 of valve casing 4, the function of sealed protection has been realized, this screw-in buckle explosion-proof valve collects waterproof, ventilative, explosion-proof etc. multifunctional as an organic wholely, compared with current conventional explosion-proof valve, the cost is reduced by a wide margin, help reducing the cost of battery package, secondly, the part quantity of this screw-in buckle explosion-proof valve product is few, only need through the part equipment assembly of 4 simple steps can accomplish the equipment, the equipment process is simple, equipment and tool are not needed, low assembling cost, the equipment is consuming time is few, packaging machine is high in assembly efficiency, and so as to have further reduced manufacturing cost, and this screw-in buckle explosion-proof valve can utilize mounting tool, the function is realized, the function of sealed protection, the high-proof valve is limited in the installation space is limited, the time-saving can be accomplished with the installation operation is fast and the installation operation is more convenient, the time-efficient is limited, the time-consuming and can be more difficult and easy and practical, the installation valve can be installed at the time-efficient and can be installed at the installation 6, and limited in the installation operation is more convenient, and convenient.

The use process is briefly described: when the rotary-in type buckle explosion-proof valve is installed, the bulge structure 51 is clamped with the sealing ring groove 41, the installation of the outer sealing ring 5 and the valve shell 4 is realized, the separating buckle 31 is clamped with the central hole 42, the sealing structural member 32 is tightly attached to the sealing surface 43 of the valve shell 4, the sealing protection function is realized, the installation of the valve core assembly 3 and the valve shell 4 is realized, the buckle characteristic of the separating buckle 31 is increased by the hard plastic material, the tightness of the sealing structural member 32 is improved by the silica gel material, the valve core assembly 3 and the waterproof breathable film 2 are fixed by pasting, then the valve top cover 1 is pressed downwards, the bulge buckle 11 is clamped with the clamping groove one 44, the valve top cover 1 and the valve shell 4 are fixed, when the explosion-proof valve and the battery pack box 6 are installed, the circular buckle 45 and the clamping groove two 61 are clamped, the explosion-proof valve is rotated, the circular buckle 45 is clamped in the clamping groove II 61 of the battery pack box body 6, the installation is completed, the anti-drop groove 47 is formed in one side of the circular buckle 45 and used for preventing rotation and displacement, the explosion-proof valve cannot rotate after being installed into the battery pack box body 6, and is prevented from falling off, when the explosion-proof valve is installed with the tool 7, the clamping groove 46 is clamped with the clamping baffle 71, the rotation-preventing effect is achieved, the installation between the explosion-proof valve and the tool 7 is completed in a rotating installation mode, the sealing protection, ventilation and internal and external pressure difference balancing effects are achieved in a normal working state of the explosion-proof valve, the soft material sealing structural member 32 on the outer side edge of the valve core assembly 3 is tightly attached to the sealing face 43 of the valve shell 4, the sealing protection function is achieved, and external liquid water, dust and dust are all the outside at the moment, foreign matters and the like cannot enter the battery pack through the product; the waterproof breathable film 2 is arranged on one side of the valve core component 3, when the pressure difference exists between the inner part and the outer part of the battery pack, gas flows to the side with low pressure from the side with high pressure, so that the functions of ventilation and balancing the pressure difference between the inner part and the outer part of the battery pack are realized, the functions of quickly exhausting and releasing pressure, preventing the explosion of the battery pack box 6 and the like are realized under the explosion-proof opening state of the explosion-proof valve, when the battery core in the battery pack has unexpected short circuit, thermal runaway abnormal accidents such as the explosion of the battery core and the like, a large amount of gas, gas-solid mixture, jelly, dust substances and the like can be quickly discharged by the battery core, the temperature and the gas pressure in the battery pack can be quickly increased, at the moment, the sealing structural member 32 on the outer side of the piston valve core component 3 can be deformed outwards and turned up, so that a quick exhaust channel is opened, the quick exhaust and the pressure release are avoided, and serious accidents such as the explosion and disasters of the battery pack caused by the untimely discharge are avoided, the use of battery package is brought the guarantee, this screw-in buckle explosion-proof valve collects waterproof, ventilative, explosion-proof etc. multi-functional as an organic wholely, compared with current conventional explosion-proof valve, the cost is reduced by a wide margin, help reducing the cost of battery package, secondly, the part quantity of this screw-in buckle explosion-proof valve product is few, only need through the part equipment of 4 simple steps can accomplish the equipment, the equipment course is simple, do not need specific assembly machine, equipment and tool, have equipment cost low, the equipment consuming time is few, advantages such as packaging efficiency is high, thereby further reduce manufacturing cost, and this screw-in buckle explosion-proof valve can utilize the mounting tool, accomplish with the installation of battery package box 6 under the occasion that the installation space is narrower, the installation mode is not only installed firmly, the reliability is high, simultaneously can operate in narrow and small installation space, the installation is quick and the time consumption is less, so that the application limit of the explosion-proof valve is less, the operation limit of a client is reduced, and the installation efficiency can be greatly improved.

Claims

1. Screw-in formula buckle explosion-proof valve, including valve top cap (1), waterproof ventilated membrane (2), case subassembly (3), valve casing (4) and outer sealing washer (5), its characterized in that: the inside and the outside of outer sealing washer (5) all design have protruding structure (51), sealing washer groove (41) that cooperation protruding structure (51) joint used have been seted up to the bottom of valve casing (4), one side fixed mounting of case subassembly (3) has disconnect-type buckle (31), centre bore (42) that cooperation disconnect-type buckle (31) joint used have been seted up to the inside of valve casing (4), one side of case subassembly (3) is through pasting with waterproof ventilated membrane (2) fixed surface connection, the inner circle fixed mounting of valve top cap (1) has protruding buckle (11), draw-in groove one (44) that cooperation protruding buckle (11) joint used have been seted up on the surface of valve casing (4) one end, surface fixed mounting of valve casing (4) one side has circular buckle (45), the clamping groove (46) and protruding muscle (48) have been seted up to the outer lane of valve casing (4).

2. The screw-in snap-in explosion-proof valve of claim 1, wherein: and the outer ring of the valve core assembly (3) is fixedly connected with a sealing structural member (32).

3. The screw-in snap-in explosion-proof valve of claim 2, wherein: the separating buckle (31) is made of hard plastic, and the sealing structural part (32) is made of silica gel.

4. The screw-in snap-in explosion-proof valve of claim 1, wherein: one side of the valve shell (4) is provided with a box body (6) which is matched and installed, and a clamping groove II (61) which is matched with the circular buckle (45) for clamping is formed in the box body (6).

5. The screw-in snap-in explosion-proof valve of claim 1, wherein: an anti-falling groove (47) is formed in one side of the valve shell (4) and located on one side of the round buckle (45).

6. The screw-in snap-in explosion-proof valve of claim 1, wherein: one side of the valve shell (4) is provided with a matched installation tool (7), and the inner ring of the tool (7) is fixedly provided with a clamping baffle (71) matched with the clamping groove for clamping.

7. The screw-in snap-in explosion-proof valve of claim 1, wherein: one side of the valve shell (4) is a sealing surface (43), and the sealing surface (43) is matched with the valve core assembly (3) to be installed and closely attached to one side of the sealing structural part (32).

8. The screw-in snap-in explosion-proof valve of claim 1, wherein: the valve core assembly (3) can be of a solid structure, and a waterproof and breathable film (2) is not needed.