CN218648095U

CN218648095U - Explosion-proof valve capable of outputting conducting signal and automatically discharging liquid after liquid absorption

Info

Publication number: CN218648095U
Application number: CN202222741588.9U
Authority: CN
Inventors: 张余
Original assignee: Dongguan Hengjin Metal Products Co ltd
Current assignee: Dongguan Hengjin Metal Products Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-03-17
Anticipated expiration: 2032-10-18

Abstract

The utility model relates to the technical field of explosion-proof valves, and discloses an explosion-proof valve which outputs a conductive signal after imbibition and discharges liquid automatically; the inner sealing ring on the piston and the valve shell is separated, and the inner sealing ring is opened to the outside, the channel of gas emission and flowing back is opened and is discharged by the through-hole, then absorb water through the water absorption plate assembly and expand and increase thickness, can push open the piston on it after the thickness of water absorption plate assembly increases, thereby make the case open the channel that forms the flowing back, discharge by the through-hole, and respond to water absorption plate assembly resistance value through binding post and change and export this resistance value signal to the external world by the electron line, thereby can be to external output fault signal's setting, the function that current explosion-proof valve product only possesses sealed protection and exhaust pressure release has been solved, do not possess the function of exporting electrically conductive signal and automatic flowing back, reduce the accident risk, improve the practicality of explosion-proof valve.

Description

Explosion-proof valve capable of outputting conducting signal and automatically discharging liquid after liquid absorption

Technical Field

The utility model relates to an explosion-proof valve technical field specifically is an output electrically conductive signal and automatic explosion-proof valve of flowing back after imbibition.

Background

The core components in the power system of the electric automobile, such as a battery PACK, an electric controller, a motor and the like, are safe and reliable. In order to ensure continuous, safe and stable operation, the waterproof and dustproof effects are required, namely, the waterproof and dustproof effects belong to a fully sealed state theoretically; however, in a sealed state, when water enters the battery pack case body due to an accident and liquid such as antifreeze liquid enters the battery pack case body, if the water cannot be found in time and discharged to the outside in time, accidents such as damage, short circuit and deflagration of components such as a battery cell in the battery pack can be caused, and serious casualties or property loss can be caused.

At present, the existing solution is to install a certain number of explosion-proof valve products on a battery pack box to meet the requirements of waterproof, explosion-proof, exhaust and pressure relief of a power battery system, but the explosion-proof valve product of the type does not have the functions of outputting fault signals to the outside, and automatically discharging water after water and liquid are fed into the box, so that an explosion-proof valve which outputs conductive signals after liquid absorption and automatically discharges liquid is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an explosion-proof valve of electrically conductive signal of output and automatic flowing back after to current device imbibition, its advantage has upgraded the function of explosion-proof valve product, solves current explosion-proof valve product and only possesses sealed protection and the function of exhaust pressure release, do not possess the function of electrically conductive signal of output and automatic flowing back.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides an output electrically conductive signal and automatic explosion-proof valve of flowing back after imbibition, includes the piston, the bottom of piston is provided with the valve case, the surperficial threaded connection of valve case bottom has mounting nut, the inside of valve case and mounting nut all is provided with the guide bar with piston threaded connection, the surface cover of guide bar is equipped with the subassembly that absorbs water, the both sides of subassembly bottom that absorbs water all are provided with the insulating part with valve case fixed connection, the fixed cover in surface of guide bar is still equipped with the spring with valve case fixed connection, the inside fixedly connected with of insulating part is with the binding post that subassembly cooperation was used that absorbs water, binding post's bottom fixedly connected with electron line, the through-hole has all been seted up at the surface of valve case and mounting nut's top.

Adopt above-mentioned technical scheme: the inner sealing ring on the piston and the valve shell is separated, and the inner sealing ring is opened to the outside, the channel of gas emission and flowing back is opened and is discharged by the through-hole, then absorb water through the water absorption plate assembly and expand and increase thickness, can push open the piston on it after the thickness of water absorption plate assembly increases, thereby make the case open the channel that forms the flowing back, discharge by the through-hole, and respond to water absorption plate assembly resistance value through binding post and change and export this resistance value signal to the external world by the electron line, thereby can be to external output fault signal's setting, the function that current explosion-proof valve product only possesses sealed protection and exhaust pressure release has been solved, do not possess the function of exporting electrically conductive signal and automatic flowing back, reduce the accident risk, improve the practicality of explosion-proof valve.

The utility model discloses further set up to, the location step hole with the piston joint is seted up at the top of valve casing.

Adopt above-mentioned technical scheme: can be used for positioning and guiding the piston; meanwhile, the fixture can be used for positioning and fixing the subsequent clamping detection tool of the explosion-proof valve.

The utility model discloses further set up to, T type groove has all been seted up to the top and the bottom of valve casing, the inside difference joint in T type groove has inner seal circle and external seal circle.

Adopt above-mentioned technical scheme: the T-shaped groove can prevent the inner sealing ring and the outer sealing ring from being easily separated.

The utility model discloses further set up to, the step groove has been seted up on the surface of valve casing bottom.

Adopt above-mentioned technical scheme: the matching tool of the product can be designed by utilizing the step groove, and the product can be clamped and fixed on various tools required by air tightness detection by utilizing the step groove after being installed on a battery pack box body.

The utility model discloses further set up to, the oblique groove that uses with the cooperation of water absorption plate subassembly is seted up to the one end that is close to the piston of guide bar.

Adopt above-mentioned technical scheme: the water absorption plate component can not interfere the movement of the guide rod due to the fact that the inner hole becomes small after expansion after liquid absorption and expansion, and the function of the product is abnormal.

The utility model discloses further set up to, the surface of valve case is regular hexagon, the inside welding of valve case has with guide bar sliding connection's lug.

Adopt above-mentioned technical scheme: the surface of the valve shell is regular hexagon so as to be convenient for installation by using a wrench, and the lug can be used for positioning and guiding the upper end of the guide rod.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses an interior sealing washer on piston and the valve case separates, and open to the outside, the passageway of gas emission and flowing back is opened and is discharged by the through-hole, then absorb water the inflation through the water absorption plate subassembly and increase thickness, can push open the piston on it after the thickness of water absorption plate subassembly increases, thereby make the case open the passageway that forms the flowing back, discharge by the through-hole, and change and export this resistance value signal to the external world by the electron line through binding post response water absorption plate subassembly resistance value, thereby can be to external output fault signal's setting, the function that current explosion-proof valve product only possesses sealed protection and exhaust pressure release has been solved, do not possess the function of exporting electrically conductive signal and automatic flowing back, reduce the risk of accident, improve the practicality of explosion-proof valve.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the structure of the present invention;

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

FIG. 4 is a schematic view of a partial structure of the present invention;

fig. 5 is a schematic view of embodiment 2 of the present invention;

fig. 6 is a schematic view of embodiment 3 of the present invention;

fig. 7 is a schematic view of embodiment 4 of the present invention.

In the figure: 1. a piston; 2. a valve housing; 3. a spring; 4. a water absorption plate assembly; 5. a guide rod; 6. an insulating member; 7. a wiring terminal; 8. an electron beam; 9. mounting a nut; 10. a through hole; 11. an inner seal ring; 12. an outer sealing ring; 13. positioning the step hole; 14. a step groove; 15. a T-shaped groove; 16. oblique beveling; 17. and (6) a bump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

refer to fig. 1, fig. 2, fig. 3, fig. 4, an explosion-proof valve of output electrically conductive signal and automatic flowing back behind imbibition, including piston 1, the bottom of piston 1 is provided with valve housing 2, the surperficial threaded connection of valve housing 2 bottom has mounting nut 9, the inside of valve housing 2 and mounting nut 9 all is provided with guide bar 5 with 1 threaded connection of piston, the surface cover of guide bar 5 is equipped with water absorption plate subassembly 4, the both sides of water absorption plate subassembly 4 bottom all are provided with insulator 6 with 2 fixed connection of valve housing, the fixed cover is still equipped with spring 3 with 2 fixed connection of valve housing on the surface of guide bar 5, the inside fixedly connected with of insulator 6 is with binding post 7 that water absorption plate subassembly 4 cooperateed and use, the bottom fixedly connected with electron line 8 of binding post 7, through-hole 10 has all been seted up on the surface of valve housing 2 and the top of mounting nut 9. Separate through the interior sealing washer 11 on piston 1 and the valve casing 2, and open to the outside, the passageway of gas emission and flowing back is opened and is discharged by through-hole 10, then absorb water through water absorption plate subassembly 4 and expand and increase thickness, can push up piston 1 on it after the thickness of water absorption plate subassembly 4 increases, thereby make the case open the passageway that forms the flowing back, discharge by through-hole 10, and respond to the resistance value change of water absorption plate subassembly 4 and export this resistance value signal by electron line 8 to the external world through binding post 7, thereby can export the setting of fault signal to the external world, solved current explosion-proof valve product and only possessed the function of sealed protection and exhaust pressure release, do not possess the function of exporting electrically conductive signal and automatic flowing back, reduce the accident risk, improve explosion-proof valve's practicality.

Referring to fig. 2, a positioning stepped hole 13 clamped with the piston 1 is formed in the top of the valve housing 2, and can be used for positioning and guiding the piston 1; meanwhile, the fixture can be used for positioning and fixing the subsequent clamping detection tool of the explosion-proof valve.

Referring to fig. 2 and 3, the top and the bottom of the valve housing 2 are both provided with T-shaped grooves 15, the inner sealing ring 11 and the outer sealing ring 12 are respectively clamped inside the T-shaped grooves 15, and the inner sealing ring 11 and the outer sealing ring 12 can be prevented from being easily disengaged by the T-shaped grooves 15.

Referring to fig. 2, a step groove 14 is formed on the surface of the bottom of the valve housing 2, and a matching tool of the product can be designed by using the step groove 14, and after the product is installed in a battery pack case, various tools required for airtightness detection can be clamped and fixed by using the step groove 14.

Referring to fig. 2, one end of the guide rod 5 close to the piston 1 is provided with an oblique groove 16 used in cooperation with the water-absorbing plate assembly 4, so that after the water-absorbing plate assembly 4 is subjected to imbibition expansion, the inner hole of the water-absorbing plate assembly 4 is not reduced after expansion, and the guide rod 5 cannot be interfered with movement, which causes abnormal product functions.

Referring to fig. 1 and 2, the surface of the valve housing 2 is a regular hexagon, the projection 17 slidably connected to the guide rod 5 is welded inside the valve housing 2, the regular hexagon on the surface of the valve housing 2 can be conveniently installed by using a wrench, and the projection 17 can be used for positioning and guiding the upper end of the guide rod 5.

It should be noted that:

referring to fig. 5, the second embodiment of the present invention adopts a snap-fit type mounting, and directly clamps the explosion-proof valve on the mounting plate;

referring to fig. 6, the third embodiment of the present invention adopts flange installation, and the exterior is fixed by bolts;

referring to fig. 7, the fourth embodiment of the present invention employs an internal mounting, which is provided with an internal thread hole, and performs the internal mounting through a bolt.

The using process is briefly described as follows: under the acting force of the piston 1 and the spring 3, the piston 1 is attached to the inner sealing ring 11 and tightly presses the inner sealing ring 11 and seals the gas discharge and liquid discharge channels of the electrified signal liquid discharge explosion-proof valve, the function of external protection is achieved, and external air, water, dust, foreign matters and the like cannot enter the battery pack box body through the product. In this embodiment: the water absorption plate assembly 4 in the valve shell 2 of the electrified signal liquid drainage explosion-proof valve is in an original state and is not in contact with or jacks up the piston 1, so that the sealing performance of the product can be realized, a sealed cavity is formed by the battery pack box body, and gas exchange inside and outside the battery pack box body is prevented. In this embodiment: when the gas pressure in the battery pack box body is greater than the valve core opening pressure preset by the electrified signal liquid drainage explosion-proof valve, the piston 1 is separated from the inner sealing ring 11 on the valve shell 2 and opens the through hole 10 to the outside, so that a gas discharge and liquid drainage channel is opened, and at the moment, the gas can be discharged and the pressure can be relieved, so that the functions of gas discharge and pressure relief of the conventional explosion-proof valve can be realized, and the resistance value of the water absorption plate component 4 is sensed by the wiring terminal 7 to change and the resistance value signal is output to the outside by the electronic wire 8, so that the fault signal can be output to the outside. In this embodiment: then, under the abnormal conditions of water inflow, liquid accumulation and the like caused by accidents in the battery pack box body, the thickness of the insulating part 6 arranged in the electrified signal liquid drainage explosion-proof valve can be increased through water absorption expansion, and the piston 1 on the water absorption plate can be pushed open after the thickness of the water absorption plate is increased, so that the valve core is opened to form a liquid drainage channel; liquid water or a water-containing mixture, antifreeze and other liquids can be discharged to the outside through the through hole 10 through a channel formed after the valve core is opened, so that the accidents of damage, short circuit, deflagration and the like of components such as a battery core in the battery pack caused by long-time immersion and immersion can be avoided, the resistance value of the water absorption plate component 4 is induced to change through the wiring terminal 7, and the resistance value signal is output to the outside through the electronic wire 8, so that a fault signal can be output to the outside. In this embodiment: the product also has the reset function of the conventional explosion-proof valve, and when the gas pressure in the battery pack box body is reduced to be lower than the set valve core opening pressure value of the product or the water in the water absorption plate component is gradually volatilized, the thickness of the water absorption plate component is gradually reduced and is restored, the piston 1 can automatically recover to a normal working state under the action force of the spring 3.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an output electricity signal and automatic explosion-proof valve of flowing back after imbibition, includes piston (1), its characterized in that: the bottom of piston (1) is provided with valve case (2), the surperficial threaded connection of valve case (2) bottom has mounting nut (9), the inside of valve case (2) and mounting nut (9) all is provided with guide bar (5) with piston (1) threaded connection, the surface cover of guide bar (5) is equipped with water-absorbing plate subassembly (4), the both sides of water-absorbing plate subassembly (4) bottom all are provided with insulator (6) with valve case (2) fixed connection, the fixed cover in surface of guide bar (5) is still equipped with spring (3) with valve case (2) fixed connection, the inside fixed connection of insulator (6) is with binding post (7) that water-absorbing plate subassembly (4) cooperation was used, the bottom fixedly connected with electron line (8) of binding post (7), through-hole (10) have all been seted up on the surface of valve case (2) and the top of mounting nut (9).

2. The explosion-proof valve capable of outputting a conductive signal and automatically discharging liquid after imbibing liquid according to claim 1, which is characterized in that: the top of the valve shell (2) is provided with a positioning step hole (13) which is clamped with the piston (1).

3. The explosion-proof valve capable of outputting a conductive signal and automatically discharging liquid after imbibing liquid according to claim 1, which is characterized in that: t type groove (15) have all been seted up to the top and the bottom of valve case (2), the inside joint of T type groove (15) has interior sealing washer (11) and outer sealing washer (12) respectively.

4. The explosion-proof valve capable of outputting a conductive signal after imbibing liquid and automatically discharging liquid as claimed in claim 1, wherein: the surface of the bottom of the valve shell (2) is provided with a step groove (14).

5. The explosion-proof valve capable of outputting a conductive signal after imbibing liquid and automatically discharging liquid as claimed in claim 1, wherein: and one end of the guide rod (5) close to the piston (1) is provided with an inclined groove (16) matched with the water absorption plate component (4) for use.

6. The explosion-proof valve capable of outputting a conductive signal after imbibing liquid and automatically discharging liquid as claimed in claim 1, wherein: the surface of the valve shell (2) is in a regular hexagon shape, and a lug (17) which is in sliding connection with the guide rod (5) is welded inside the valve shell (2).