CN216813010U

CN216813010U - Circular integrated explosion-proof valve

Info

Publication number: CN216813010U
Application number: CN202220118745.8U
Authority: CN
Inventors: 李建; 李锋; 朱鹏; 丁立超
Original assignee: Taian Dingtai Automobile Technology Co ltd
Current assignee: Taian Dingtai Automobile Technology Co ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-06-24
Anticipated expiration: 2032-01-17

Abstract

The utility model relates to the technical field of explosion-proof valves and discloses a circular integrated explosion-proof valve which comprises a shell, wherein a sliding groove is formed in the side wall surface of the shell, a sealing wall capable of sliding in the sliding groove is movably installed in the sliding groove, a support ring is fixedly installed on the inner wall surface of the shell at a position corresponding to an installation ring, a breathable film is fixedly installed on the inner wall surface of the support ring in a detachable mode, and a pricking needle base is fixedly installed on the top end surface of the inner wall of the shell. According to the utility model, the shell is fixed on the upper cover of the power battery through the bolt, meanwhile, the sealing performance of the shell and the upper cover of the power battery is improved through the sealing gasket, the shell is spherical, the movable sealing wall is arranged in the shell, the handle can be shifted when the breathable film is replaced, and the sealing wall enters the sliding groove, so that the breathable film is conveniently detached from the supporting ring, the whole explosion-proof valve does not need to be replaced, and the maintenance cost and the maintenance time are reduced.

Description

Circular integrated explosion-proof valve

Technical Field

The utility model relates to the technical field of explosion-proof valves, in particular to a circular integrated explosion-proof valve.

Background

In order to prevent the performance of a battery pack and a control system in the battery box from being influenced by water, dust and the like, the battery box needs to be sealed, but under the condition of complete sealing, the inside of the battery box generates heat when in operation, so that the gas in the battery box expands; when the temperature is reduced when the battery box stops working, the pressure of gas in the battery box is reduced, and if the gas cannot be discharged or sucked in time to balance the pressure inside and outside the box body, the reliability of the battery box is seriously influenced. In addition, when abnormal explosion occurs in the battery box, high temperature and high pressure can be generated, and if pressure cannot be quickly relieved, the risk of severe explosion exists, so that an explosion-proof valve is needed to maintain the balance of the internal pressure and the external pressure of the box body, and the explosion is prevented or the damage caused by explosion is reduced.

The retrieval application number CN201921044188.4 discloses an integrated waterproof breathable explosion-proof valve, which comprises a main body, a steel sheet, a breathable film, a copper sleeve and a sealing strip; the main body is of a square structure and is a shell of the explosion-proof valve, the upper top surface of the main body is provided with round and strip-shaped air holes, and the middle inside the main body is provided with a tip cone; the breathable film is arranged in the main body; the steel sheet and the sealing strip are arranged at the bottom of the main body; a circular ventilation opening is formed in the steel sheet; round holes matched with the copper sleeves are symmetrically formed in four corners of the inner sides of the main body and the steel sheet, and the copper sleeves penetrate through the round holes to be connected with the main body; the main body is fixed on the battery box through a copper sleeve; the main body and the copper sleeve are integrally injection-molded through a mold.

However, the inventor finds that the technical scheme still has at least the following defects:

this scheme is changed the process and need demolish whole shell after the ventilated membrane is punctured, and the state that also can't be convenient to run through the ventilated membrane is unfavorable for the rapid judgement battery state simultaneously.

To this end, we propose a circular one-piece explosion-proof valve.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problems in the prior art and provides a circular integrated explosion-proof valve.

In order to achieve the purpose, the utility model adopts the following technical scheme that the round integrated explosion-proof valve comprises a shell, wherein a mounting ring is horizontally and integrally formed in the center of the outer wall surface of the shell, a sliding groove is formed in the side wall surface of the shell, supporting shafts are fixedly arranged at two ends of the shell corresponding to the positions of the horizontal side wall and the vertical side wall, a sealing wall capable of sliding in the sliding groove is movably arranged in the sliding groove, a sleeve ring sleeved on the outer wall surface of the supporting shaft is fixedly arranged at the position of the sealing wall corresponding to the position of the supporting shaft, upper air holes communicated with the interior of the shell are uniformly formed in the position of the outer wall surface of the shell corresponding to the upper part of the mounting ring, lower air holes communicated with the interior of the shell are uniformly formed in the position of the outer wall surface of the shell corresponding to the lower part of the upper air holes, and a supporting ring is fixedly arranged at the position of the inner wall surface of the shell corresponding to the mounting ring, the breathable film is fixedly installed on the inner wall surface of the support ring in a detachable mode, and the pricking pin base is fixedly installed on the top end surface of the inner wall of the shell.

Preferably, the housing is a quarter-spherical housing.

Preferably, the mounting ring is of an annular structure, a sealing gasket is arranged on the bottom end face of the mounting ring, the sealing gasket is a rubber gasket of an annular structure, and a plurality of groups of bolts are connected with the sealing gasket in an internal thread mode.

Preferably, the sealing wall is of a hemispherical structure made of transparent materials, and a sealing ring is arranged at a position, close to the plane, of the arc-shaped surface of the sealing wall.

Preferably, the support shaft is a short circular rod, and the support shaft supports the inner wall of the housing.

Preferably, the base of the puncture needle is a round short rod with an internal thread groove formed on the bottom end surface, the puncture needle is connected with the puncture needle in an internal thread manner, and the bottom end surface is a structure with a pointed top end side wall surface provided with an external thread.

Preferably, a handle is fixedly attached to an outer wall surface of the sealing wall.

Advantageous effects

The utility model provides a circular integrated explosion-proof valve. The method has the following beneficial effects:

(1) this circular integral type explosion-proof valve is fixed the casing on power battery upper cover through the bolt, increases the leakproofness of casing and power battery upper cover through sealed the pad simultaneously, through setting up the casing to spherical and at the inside seal wall that sets up the activity of casing, can stir the handle when changing the ventilated membrane, makes the seal wall get into the sliding tray in to convenient demolish the ventilated membrane from the backup ring, need not to change whole explosion-proof valve, reduced cost of maintenance and repair time.

(2) This circular integral type explosion-proof valve when needs are to the length of the power battery adjustment felting needle of different models to when the inside atmospheric pressure intensity after the different battery tympanites of adaptation, can be directly through changing the felting needle of different lengths, threaded connection is on the felting needle base, thereby makes explosion-proof valve only need change the production condition of felting needle in process of production can adapt to the power battery of different models, has reduced manufacturing cost.

(3) This circular integral type explosion-proof valve through set up the sealed wall to transparent material, the bloated condition of running through the lock ring that can be convenient to and there is the breakage, thereby judges out the roughly condition of battery, helps judging the fault point when the battery breaks down fast.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

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

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

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

FIG. 4 is a schematic diagram of a half-open structure according to the present invention.

Illustration of the drawings:

1. a housing; 2. a mounting ring; 3. a gasket; 4. a bolt; 5. a sliding groove; 6. a support shaft; 7. a sealing wall; 8. a collar; 9. air holes are arranged; 10. air holes are formed; 11. a support ring; 12. a gas permeable membrane; 13. a lancet base; 14. a needle; 15. a handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): a circular integrated explosion-proof valve is disclosed, as shown in figures 1-4, comprising a casing 1, the casing 1 is a quarter spherical casing, a mounting ring 2 is horizontally and integrally formed at the center of the outer wall surface of the casing 1, the mounting ring 2 is a sealing gasket 3 arranged on the bottom end surface of the mounting ring 2 with an annular structure, the sealing gasket 3 is a rubber gasket with an annular structure, the sealing gasket 3 is internally threaded with a plurality of groups of bolts 4, the bolts 4 are the existing structure and do not need to be used as a support, the mounting ring 2 is threaded on a power battery upper cover through the bolts 4, the upper cover is tightly combined with the casing 1 through the sealing gasket 3, the explosion-proof valve and the power battery form good sealing performance, the side wall surface of the casing 1 is provided with a sliding groove 5, the sliding groove 5 is a spherical groove, support shafts 6 are fixedly arranged at the positions of the two ends of the casing 1 corresponding to the horizontal and vertical side walls, the support shafts 6 are circular short rods, the support shafts 6 are communicated with the inner and outer walls of the casing 1, a sealing wall 7 which can slide in the sliding groove 5 is movably arranged in the sliding groove 5, the sealing wall 7 is of a hemispherical structure made of transparent materials, a lantern ring 8 is fixedly arranged at the position, corresponding to the supporting shaft 6, of the sealing wall 7, the lantern ring 8 is of an annular structure, the lantern ring 8 is sleeved on the outer wall surface of the supporting shaft 6, an upper vent hole 9 communicated with the inside of the shell 1 is uniformly formed in the position, corresponding to the upper part of the mounting ring 2, of the outer wall surface of the shell 1, a lower vent hole 10 communicated with the inside of the shell 1 is uniformly formed in the position, corresponding to the lower part of the upper vent hole 9, of the outer wall surface of the shell 1, the lower vent hole 10 is of a circular groove, a supporting ring 11 is fixedly arranged at the position, corresponding to the mounting ring 2, of the inner wall surface of the supporting ring 11 is a circular plate, a breathable film 12 is fixedly arranged on the inner wall surface of the supporting ring 11 in a detachable mode, and the breathable film 12 is not used as a traditional structure, the pricking pin base 13 is fixedly installed on the top end face of the inner wall of the shell 1, the pricking pin base 13 is a round short rod with a bottom end face provided with an inner thread groove, a pricking pin 14 is connected with an inner thread of the pricking pin base 13, the bottom end face is of a structure with an external thread arranged on a pointed top end side wall face, the breathable film 12 can be in contact with the pricking pin 14 and punctured by the pricking pin 14 when gas in the shell 1 abnormally expands due to battery faults, accordingly, the gas in the shell 1 is discharged quickly, battery explosion is avoided, a handle 15 is fixedly installed on the outer wall face of the sealing wall 7, the handle 15 is of a cylindrical structure, a user can conveniently stir the sealing wall 7, a sealing ring is arranged at a position, close to the plane, of the arc face of the sealing wall 7, and the inner wall face of the sliding groove 5 are sealed.

The working principle of the utility model is as follows: fix casing 1 on power battery upper cover through bolt 4, increase the leakproofness of casing 1 and power battery upper cover simultaneously through sealed 3 of filling up, through setting up casing 1 to the sphere and set up movable sealed wall 7 in casing 1 inside, can stir handle 15 when changing ventilated membrane 12, make sealed wall 7 get into in the sliding tray 5, thereby convenient demolish ventilated membrane 12 from lock ring 11, need not to change whole explosion-proof valve, cost of maintenance and maintenance time have been reduced.

When the length of the puncture needle 14 needs to be adjusted for power batteries of different models so as to adapt to the internal air pressure strength of the swelled batteries, the puncture needle 14 with different lengths can be directly replaced and screwed on the puncture needle base 13, so that the explosion-proof valve can adapt to the power batteries of different models only by changing the production conditions of the puncture needle 14 in the production process, and the production cost is reduced.

By arranging the sealing wall 7 to be made of transparent material, the bulging condition of the supporting ring 11 can be conveniently penetrated, and the breakage or not can be conveniently caused, so that the approximate condition of the battery can be judged, and the quick judgment of a fault point when the battery breaks down can be facilitated.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A circular integral type explosion-proof valve, includes casing (1), its characterized in that: the outer wall surface center horizontal integrated forming of the shell (1) is provided with a mounting ring (2), a sliding groove (5) is formed in the side wall surface of the shell (1), a supporting shaft (6) is fixedly mounted at the position corresponding to the horizontal and vertical side walls at the two ends of the shell (1), a sealing wall (7) capable of sliding in the sliding groove (5) is movably mounted in the sliding groove (5), a lantern ring (8) sleeved on the outer wall surface of the supporting shaft (6) is fixedly mounted at the position corresponding to the supporting shaft (6) of the sealing wall (7), an upper air hole (9) communicated with the inside of the shell (1) is uniformly formed in the position, corresponding to the upper air hole (9), of the outer wall surface of the shell (1) below the lower air hole (10) communicated with the inside of the shell (1) is uniformly formed in the position corresponding to the upper air hole (9), the position of the inner wall surface of the shell (1) corresponding to the mounting ring (2) is fixedly provided with a support ring (11), the inner wall surface of the support ring (11) is fixedly provided with a breathable film (12) in a detachable mode, and the top end surface of the inner wall of the shell (1) is fixedly provided with a puncture needle base (13).

2. A circular integrated explosion-proof valve according to claim 1, wherein: the shell (1) is a quarter spherical shell.

3. A circular integrated explosion-proof valve according to claim 1, wherein: the mounting ring (2) is of an annular structure, a sealing gasket (3) is arranged on the bottom end face of the mounting ring (2), the sealing gasket (3) is a rubber gasket of an annular structure, and multiple groups of bolts (4) are connected to the sealing gasket (3) through internal threads.

4. A circular integrated explosion-proof valve according to claim 1, wherein: the sealing wall (7) is of a hemispherical structure made of transparent materials, and a sealing ring is arranged at the position, close to the plane, of the arc-shaped surface of the sealing wall (7).

5. A circular integrated explosion-proof valve according to claim 1, wherein: the supporting shaft (6) is a round short rod, and the supporting shaft (6) supports the inner wall of the shell (1).

6. A circular integrated explosion-proof valve according to claim 1, wherein: the pricking pin base (13) is a round short rod with an internal thread groove formed in the bottom end face, the pricking pin base (13) is connected with the pricking pin (14) in an internal thread mode, and the pricking pin (14) is of a structure with a pointed bottom end face and an external thread formed in the side wall face of the top end.

7. A circular integrated explosion-proof valve according to claim 1, wherein: and a handle (15) is fixedly arranged on the outer wall surface of the sealing wall (7).