Umbrella body sealing type one-way pressure release valve

Abstract

The utility model relates to an umbrella body sealing type one-way pressure release valve which comprises a valve body, the valve body comprises a handheld part, one end of the handheld part is provided with an external thread part, the other end of the handheld part is provided with an upper circumferential ring, the handheld part is provided with a concave cavity, the central area of the handheld part is provided with a central positioning hole, and the outer side of the central positioning hole is provided with a plurality of vent holes. An umbrella-shaped valve core is inserted into the central positioning hole, the umbrella-shaped valve core consists of an umbrella top part, an umbrella edge part and an umbrella handle, a bulge part for limiting is arranged on the umbrella handle, and the umbrella-shaped valve core is made of fluorosilicone rubber; the valve body is detachably connected with a valve cover, and the valve cover comprises a male inserting part and an arc-shaped ring. The novel umbrella body sealing type one-way pressure release valve is simple in structure and convenient to process, is not easy to corrode in strong acid and strong alkali electrolyte environments of new energy batteries due to the fact that fluorosilicone rubber is selected, and can effectively prevent water vapor and condensation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the manufacturing technical field of check valve, especially a kind of umbrella body sealed check pressure relief valve. BACKGROUND

[0002] In prior art, in new energy electric car and energy storage device, battery or battery pack may occur abnormal reaction in long time working process, leading to internal pressure of battery or battery pack rising, forming excessive internal pressure. Guiding pressure relief valve in prior art has the following problems when applied in new energy electric car and energy storage device.

[0003] Firstly, existing pressure relief valve structure is precise and complex, contains numerous small parts, and processing technology requirement is extremely high, which leads to existing pressure relief valve manufacturing cost being high, not suitable for large-scale application in cost-sensitive new energy electric car and energy storage device.

[0004] Secondly, existing pressure relief valve is mostly made of stainless steel and other metal materials, these metal materials are prone to corrosion in strong acid and strong alkali electrolyte environment of new energy battery, thereby shortening service life of pressure relief valve, and once pressure relief function fails, it will directly threaten safety of battery and battery pack. Furthermore, volume and weight of existing metal pressure relief valve are large, which is not conducive to miniaturization and lightweight design requirement of battery pack, and large pressure relief valve also limits effective energy storage space in battery pack.

[0005] At the same time, many bidirectional breather valves cannot effectively prevent water vapor and condensation, and water vapor is sucked back in under negative pressure, leading to excessive internal humidity, condensation and water droplets. SUMMARY

[0006] The utility model aims at providing a kind of umbrella body sealed check pressure relief valve to solve the problems raised in the above background.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical measures: a kind of umbrella body sealed check pressure relief valve, characterized by: including hollow bolt-shaped valve body, the valve body includes handheld part, one end of the handheld part is provided with external thread part, the other end of the handheld part is provided with upper periphery, the handheld part is provided with recess cavity, the center region of the handheld part is provided with center positioning hole, a plurality of air holes are provided on the outer side of the center positioning hole;The umbrella-shaped valve core is inserted in the center positioning hole, the umbrella-shaped valve core is composed of umbrella top, umbrella along part and umbrella handle, the protruding part for limiting is provided on the umbrella handle, the material of the umbrella-shaped valve core is fluorosilicone rubber;The valve cover is detachably connected to the valve body, the valve cover includes male plug part matched with the recess cavity of the valve body and fixed, the valve cover includes arc-shaped ring matched with the upper periphery of the valve body and fixed to generate gap.

[0008] Compared with the prior art, the one-way pressure relief valve has the advantages that: the novel umbrella body sealing type one-way pressure relief valve has simple structure, is convenient to process, and is made of fluorosilicone rubber which is a nonmetal material, so that corrosion is not easy to occur in a strong acid and strong alkali electrolyte environment of a new energy battery, and water vapor and condensation can be effectively prevented, and water vapor is not easily sucked back into the interior under negative pressure to cause excessive humidity and condensation and water drops.

[0009] As an improvement of the utility model, the lowest part of the umbrella edge is lower than the lowest part of the umbrella top. The purpose of selecting this design is that: this structure makes the umbrella edge deform and bend after assembly due to the softness of the rubber material, thereby playing a sealing role. Figure 7 Under normal circumstances, the distance between the lowest part of the umbrella edge and the lowest part of the umbrella top is B, and the distance is zero when sealing, and the lowest part of the umbrella top is attached to the valve body.

[0010] As an improvement of the utility model, the air holes are uniformly distributed on the outer side of the center positioning hole. The purpose of selecting this design is that: the uniform distribution of the air holes makes the umbrella edge and the umbrella top of the umbrella-shaped valve core bear force evenly, thereby improving the service life.

[0011] As an improvement of the utility model, the shape of the male plug part of the valve cover is open. The purpose of selecting this design is that: the open space leaves a certain amount of air, maintains the balance of internal and external pressure, and enables the valve cover to be smoothly detached from and mounted on the valve body.

[0012] As an improvement of the utility model, the shape of the outer ring of the valve cover is the same as the shape of the outer ring of the handheld part. The purpose of selecting this design is that: the shapes of the two are the same, thereby facilitating disassembly and assembly.

[0013] As an improvement of the utility model, the shape of the outer ring of the handheld part is a flower-shaped outer ring. The purpose of selecting this design is that: the flower-shaped outer ring enables an operator to conveniently hold the handheld part with bare hands for disassembly and assembly. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the application and are incorporated herein for explanation by reference. The present application will become more fully understood from the detailed description and accompanying drawings given below.

[0015] In the drawings:

[0016] Figure 1 The exploded view of the umbrella body sealing type one-way pressure relief valve.

[0017] Figure 2 The sectional view of the umbrella body sealing type one-way pressure relief valve.

[0018] Figure 3The utility model discloses a perspective view of the valve body.

[0019] Figure 4 The utility model discloses a plan view of the valve body.

[0020] Figure 5 The utility model discloses an A-A section view.

[0021] Figure 6 The utility model discloses a perspective view of the valve cover.

[0022] Figure 7 The utility model discloses a section view of the umbrella-shaped valve core.

[0023] The utility model discloses a valve body, handheld part, outer thread part, upper ring, concave cavity, center positioning hole, air hole, umbrella-shaped valve core, umbrella top, umbrella along part, umbrella handle, protruding part, valve cover, male plug part, arc ring, open, flower-shaped outer ring, sealing ring. DETAILED DESCRIPTION

[0024] The preferred embodiments of the utility model will be described below with reference to the drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0025] Embodiment 1

[0026] Please refer to Figure 1 -7.

[0027] The umbrella body sealed one-way pressure relief valve provided in the embodiment comprises a hollow bolt-shaped valve body 1, please refer to Figure 3 、 Figure 4 and Figure 5 , the valve body 1 comprises a handheld part 2, one end of the handheld part 2 is provided with an outer thread part 3, the outer thread part 3 is provided with a sealing ring 18, the other end of the handheld part 2 is provided with an upper ring 4, the handheld part 2 is provided with four concave cavities 5, the center region of the handheld part 2 is provided with a center positioning hole 6, and four air holes 7 are arranged on the outer side of the center positioning hole 6.

[0028] Further, the air holes 7 are uniformly distributed on the outer side of the center positioning hole 6. The air holes 7 are uniformly distributed to balance the force of the umbrella along part 10 and the umbrella top 9 of the umbrella-shaped valve core 8, ensure good centring, and make the air permeation amount of the pressure relief valve more stable.

[0029] In the embodiment of the utility model application, please refer to Figure 7. The umbrella-shaped valve core 8 is inserted into the center positioning hole 6 of the valve body 1, and the umbrella-shaped valve core 8 is fixed by clamping the umbrella top 9 and the protruding portion 12.

[0030] Further, referring to Figure 2 , the lowest part of the umbrella edge 10 is lower than the lowest part of the umbrella top 9. After assembly, the umbrella edge 10 is deformed and curved due to the flexibility of the rubber material, thereby achieving sealing. Figure 7 , the distance between the lowest part of the umbrella edge 10 and the lowest part of the umbrella top 9 is B in the normal state, and the distance is zero during sealing, and the lowest part of the umbrella top 9 is in close contact with the valve body 1.

[0031] In the embodiment of the present application, referring to Figure 6 , the valve cover 13 is detachably connected to the valve body 1, and the valve cover 13 includes four male plug portions 14 that are fixed in cooperation with the concave cavities 5 of the valve body 1.

[0032] Further, the male plug portion 14 of the valve cover 13 is in the shape of an opening 16. The opening 16 has a certain amount of air space, which maintains the pressure balance between the inside and the outside, so that the valve cover 13 can be smoothly detached and installed from the valve body 1.

[0033] Further, the outer ring shape of the valve cover 13 is the same as the outer ring shape of the handheld portion 2. Both shapes are flower-shaped outer rings 17, which can be easily held by the operator for disassembly and assembly.

[0034] The umbrella body sealed one-way pressure relief valve provided in the embodiment is connected as follows: the umbrella-shaped valve core 8 is inserted into the center positioning hole 6 of the valve body 1, the umbrella edge 10 of the umbrella-shaped valve core 8 is deformed and curved, thereby achieving sealing, and the valve cover 13 is inserted into the valve body 1.

[0035] The umbrella body sealed one-way pressure relief valve provided in the embodiment is connected as follows: the umbrella-shaped valve core 8 is inserted into the center positioning hole 6 of the valve body 1, the umbrella edge 10 of the umbrella-shaped valve core 8 is deformed and curved, thereby achieving sealing, and the valve cover 13 is inserted into the valve body 1.

[0036] The novel umbrella body sealing type one-way pressure relief valve has simple structure, is convenient to process, is not easy to be corroded in a strong acid and strong alkali electrolyte environment of a new energy battery by selecting fluorosilicon rubber as a nonmetal material, water vapor and condensation can be effectively prevented by the rubber part, and water vapor is sucked back in the case of negative pressure, so that internal humidity is not too large to cause condensation and water drops.

[0037] In the description of the present application, it should be pointed out that the orientation or position relationship indicated by the terms "vertical", "upper", "lower", "horizontal" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0038] In the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An umbrella body sealed one-way pressure relief valve, characterized by: The invention comprises a hollow bolt-shaped valve body (1), wherein the valve body (1) comprises a hand-held part (2), one end of the hand-held part (2) is provided with an external threaded part (3), the other end of the hand-held part (2) is provided with an upper ring (4), a concave cavity (5) is provided on the hand-held part (2), a central positioning hole (6) is provided in the central area of ​​the hand-held part (2), and a plurality of vent holes (7) are provided on the outside of the central positioning hole (6); an umbrella-shaped valve core (8) is inserted into the central positioning hole (6), and the umbrella-shaped valve core (8) is provided with a plurality of vent holes (7) on the outside of the central positioning hole (6); ) is composed of an umbrella top (9), an umbrella edge (10) and an umbrella handle (11), and a protrusion (12) for limiting is provided on the umbrella handle (11), and the material of the umbrella-shaped valve core (8) is fluorosilicone rubber; the valve body (1) is detachably connected to a valve cover (13), and the valve cover (13) includes a male plug (14) that is matched and fixed with the concave cavity (5) of the valve body (1), and the valve cover (13) includes an arc ring (15) that is matched and fixed with the upper circle (4) of the valve body (1) to produce a gap.

2. The umbrella-sealed one-way pressure relief valve according to claim 1, characterized in that: The lowest point of the umbrella edge (10) is lower than the lowest point of the umbrella top (9).

3. The umbrella-sealed one-way pressure relief valve according to claim 1, characterized in that: The ventilation holes (7) are evenly distributed outside the central positioning hole (6).

4. The umbrella-sealed one-way pressure relief valve according to claim 1, characterized in that: The male plug portion (14) of the valve cover (13) is shaped like an opening (16).

5. The umbrella-sealed one-way pressure relief valve according to claim 1, characterized in that: The outer ring shape of the valve cover (13) is the same as the outer ring shape of the hand-held part (2).

6. The umbrella-sealed one-way pressure relief valve according to claim 1, characterized in that: The outer ring of the handheld portion (2) is in the shape of a flower-shaped outer ring (17).

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