CN219102129U - Pressure release valve structure for inhibiting blade clapping sound and automobile - Google Patents

Abstract

The utility model relates to a pressure release valve structure for inhibiting blade clapping and an automobile, the pressure release valve structure for inhibiting blade clapping comprises a pressure release valve main body, wherein the pressure release valve main body comprises a pressure release valve frame and a plurality of reversible blades arranged on the pressure release valve frame, the pressure release valve main body also comprises an outer cover, an opening of the outer cover faces the inner side of the automobile, the pressure release valve main body is arranged at the opening and forms a cavity structure with the outer cover, an air outlet grid is arranged on a side wall of the outer cover opposite to the pressure release valve main body, and the air outlet grid is arranged on the side wall in a biased manner. The automobile has the pressure release valve structure for inhibiting the blade clapping sound with the structure and has the same technical effect.

Description

Pressure release valve structure for inhibiting blade clapping sound and automobile

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a pressure release valve structure for inhibiting blade clapping sound and an automobile.

Background

When the vehicle is started to open an air conditioner or circulates outside, the door is closed or the vehicle runs at a high speed, the pressure in the vehicle can be higher than that in the vehicle, at the moment, the pressure in the vehicle is balanced by communicating the inside and the outside of the vehicle through the one-way pressure release valve, and meanwhile, the noise outside the vehicle is prevented from entering the vehicle. However, the continuous change of the pressure inside and outside the vehicle can cause unstable air flow, so that the blade is repeatedly opened and closed to generate clapping abnormal sound, and the NVH quality of the whole vehicle is reduced. In order to solve the problem of abnormal sound of blade slapping, in the prior art, the blade is designed into two layers, the outer layer is the rubber layer, and the inlayer is the felt, plays the cushioning effect through the felt, reduces the abnormal sound, but the durability of inlayer felt is poor, just can become invalid for a period of time of use, can't fundamentally solve the problem of abnormal sound of blade slapping.

Disclosure of Invention

The first object of the present utility model is: aiming at the problems that in the prior art, the blade of the automobile pressure relief valve is repeatedly opened and closed to generate clapping abnormal sound and reduce the NVH quality of the whole automobile, the pressure relief valve structure for inhibiting the clapping sound of the blade is provided; a second object of the present utility model is to provide an automobile.

In order to achieve the first object, the present utility model adopts the following technical scheme:

the utility model provides a restrain blade and beat relief valve structure of sound, includes the relief valve main part, the relief valve main part include the relief valve frame with install in a plurality of reversible blades on the relief valve frame still include the dustcoat, the dustcoat opening is inboard towards the car, the relief valve main part set up in the opening part, and with form cavity structure between the dustcoat, on the dustcoat with the vent grille has been seted up on the lateral wall that the relief valve main part is relative, vent grille biasing set up in on the lateral wall.

According to the technical scheme, the outer cover is arranged on the exhaust side of the pressure relief valve main body, the offset air outlet grille is arranged on the outer cover, when the pressure in the automobile is higher than that in the outside of the automobile, air in the automobile can not be directly discharged out of the automobile after flowing through the pressure relief valve main body, but is converged in the outer cover and forms vortex flow, and then is discharged from the air outlet grille, the convergence of the air in the outer cover and the formation of the vortex flow slow down the reduction of the pressure of the air at the exhaust side, so that the flow velocity of the air flowing through the pressure relief valve main body is reduced, the time that the blades are kept in an open state is longer, the frequency of clapping abnormal sound caused by repeated opening and closing of the blades is reduced, and compared with the problem of clapping abnormal sound caused by repeated opening and closing of the blades of the automobile pressure relief valve in the prior art, the NVH quality of the whole automobile is reduced.

Further, the automobile pressure relief valve further comprises a plate-shaped shell, the shell is arranged on the inner side of the pressure relief valve body in parallel to the pressure relief valve body, the shell is connected with the pressure relief valve frame through a plurality of connecting pieces which are circumferentially arranged at intervals, sound absorbing materials are paved on the side face, facing the outer side of the automobile, of the shell, gaps are reserved between the sound absorbing materials and the blades, and the gaps are reserved for forming an air inlet channel of the pressure relief valve body, so that air in the automobile can be conveniently discharged outwards smoothly; the shell and the laid sound absorbing material can absorb noise transmitted from the outside of the vehicle to the inside of the vehicle, and improve NVH quality of the whole vehicle.

Further, the circumference of casing is formed with the turn-ups of outside, and this turn-ups can surround sound absorbing material and form the protection, prevent that sound absorbing material from receiving the pollution.

Furthermore, the sound absorbing material is sound absorbing cotton or PU foaming material, has good sound absorbing effect and is easy to obtain.

Further, the pressure release valve frame is sleeved with a circle of sealing gasket, the pressure release valve frame is clamped at the opening of the outer cover, and the pressure release valve frame and the outer cover form sealing through the sealing gasket, so that the gas exhausted through the pressure release valve main body is prevented from flowing back into the vehicle from the cavity of the outer cover, and the pressure release effect is influenced.

Furthermore, the blade is made of rubber, and has good durability, and the performance of the blade cannot be obviously attenuated after long-term use.

In order to achieve the second object, the present utility model adopts the following technical scheme:

an automobile comprises the pressure release valve structure for inhibiting blade clapping.

Compared with the prior art, the utility model has the beneficial effects that: the outer cover with the offset air outlet grating is additionally arranged on the air outlet side of the pressure release valve main body, so that the frequency of repeated opening and closing of the pressure release valve blades is effectively reduced, the frequency of clapping abnormal sound generated by the blades is further reduced, and the NVH quality of the whole automobile is improved; the shell with the sound absorbing material is additionally paved on the air inlet side of the pressure release valve main body, so that noise transmitted from the outside of the vehicle to the inside of the vehicle can be absorbed, and the NVH quality of the whole vehicle is improved; the blades are made of rubber, so that the durability is good; the automobile has the same technical effect as the pressure release valve structure for inhibiting the blade clapping sound.

Description of the drawings:

FIG. 1 is a cross-sectional view of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a front view of the present utility model with the housing removed;

fig. 4 is a front view of the present utility model.

The marks in the figure: 1-shell, 2-gap, 3-blade, 4-relief valve frame, 5-sealing gasket, 6-housing, 7-air outlet grille, 8-connector, 9-turn-ups.

Detailed Description

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

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The embodiment 1 of the pressure release valve structure for inhibiting blade clapping sound comprises a pressure release valve main body, wherein the pressure release valve main body comprises a pressure release valve frame 4 and a plurality of reversible blades 3 arranged on the pressure release valve frame 4, and further comprises an outer cover 6, an opening of the outer cover 6 faces the inner side of an automobile, the pressure release valve main body is arranged at the opening and forms a cavity structure with the outer cover 6, a side wall, opposite to the pressure release valve main body, of the outer cover 6 is provided with an air outlet grid 7, and the air outlet grid 7 is arranged on the side wall in an offset manner;

specifically, the structure of the pressure release valve main body is an existing structure, a plurality of blades 3 are arranged in a layered manner and are hinged or hung on the pressure release valve frame 4, when the pressure in the automobile is too high, the blades 3 are pushed away to exhaust outwards, and when the pressure in the automobile is proper, the blades 3 can be closed on the pressure release valve frame 4 under the self gravity so as to prevent external air from entering a carriage; the air outlet grille 7 is provided only in a partial region of the side wall of the housing 6, the offset arrangement on this side wall being: the air outlet grille 7 is not arranged on the side wall and is opposite to the pressure release valve main body; in the present embodiment, the offset of the air outlet grille 7 in the left-right direction is provided on the side wall of the housing 6, so arranged that the air flow flowing through the relief valve body is prevented from smoothly flowing out of the air outlet grille 7 from the cavity of the housing 6 without converging and forming a vortex in the cavity of the housing 6;

the automobile pressure relief valve further comprises a plate-shaped shell 1, the shell 1 is arranged on the inner side of the pressure relief valve body in parallel to the pressure relief valve body, the shell 1 is connected with the pressure relief valve frame 4 through a plurality of connecting pieces 8 which are circumferentially arranged at intervals, sound absorbing materials are paved on the side surface of the shell 1 facing the outer side of the automobile, and gaps 2 are reserved between the sound absorbing materials and the blades 3; the circumference of the shell 1 is provided with an outward flanging 9; the sound absorbing material is sound absorbing cotton or PU foaming material;

specifically, the connecting piece 8 is a buckle integrally formed with the shell 1 and protruding outwards for a certain distance, a plurality of buckles arranged at intervals along the circumferential direction of the shell 1 are matched and clamped with clamping holes arranged at corresponding positions on the pressure release valve frame 4, and a gap is reserved between the shell 1 and the pressure release valve frame 4 after clamping;

besides, the connecting piece 8 can also be a screw, a plurality of first screw holes are arranged at intervals in the circumferential direction of the shell 1, a second screw hole is arranged at a position corresponding to the first screw hole in the circumferential direction of the pressure release valve frame 4, and the screw is matched with the first screw hole and the second screw hole at the same time to connect the shell 1 and the pressure release valve frame 4, and a gap is reserved between the two;

a circle of sealing gasket 5 is sleeved on the pressure release valve frame 4, and the pressure release valve frame 4 is clamped at the opening of the outer cover 6 and forms a seal with the outer cover 6 through the sealing gasket 5;

the blade 3 is made of rubber;

according to the utility model, the outer cover 6 is arranged on the exhaust side of the pressure relief valve main body, and the offset air outlet grille 7 is arranged on the outer cover 6, when the pressure in the automobile is higher than that in the outside of the automobile, the air in the automobile is not directly discharged out of the automobile after flowing through the pressure relief valve main body, but is converged in the outer cover 6 to form vortex, and is discharged from the air outlet grille 7, the convergence of the air in the outer cover 6 and the formation of the vortex slow down the reduction of the pressure of the air at the exhaust side, so that the flow rate of the air flowing through the pressure relief valve main body is reduced, the time of keeping the blade 3 in an open state is longer, the frequency of slapping abnormal sound caused by repeated opening and closing of the blade 3 is reduced, and compared with the problem of reducing the NVH quality of the whole automobile caused by repeated opening and closing of the blade of the pressure relief valve in the prior art, the utility model can effectively reduce the frequency of the repeated opening and closing of the blade of the pressure relief valve, and further reduce the frequency of slapping abnormal sound caused by the blade, thereby improving the NVH quality of the whole automobile; meanwhile, a shell made of sound absorbing materials is additionally paved on the air inlet side of the pressure release valve main body, so that noise transmitted from the outside of the vehicle to the inside of the vehicle can be absorbed, and the NVH quality of the whole vehicle is improved; the blade adopts the rubber material, and the durability is good.

Embodiment 2, an automobile including the above-described relief valve structure that suppresses blade rattle.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (7)

1. The utility model provides a restrain blade and beat relief valve structure of sound, includes the relief valve main part, the relief valve main part include relief valve frame (4) and install in a plurality of blade (3) that can overturn on relief valve frame (4), its characterized in that: the automobile pressure relief valve further comprises an outer cover (6), an opening of the outer cover (6) faces the inner side of the automobile, the pressure relief valve main body is arranged at the opening, a cavity structure is formed between the pressure relief valve main body and the outer cover (6), an air outlet grid (7) is arranged on the side wall, opposite to the pressure relief valve main body, of the outer cover (6), and the air outlet grid (7) is arranged on the side wall in a biased mode.

2. The pressure release valve structure for suppressing blade clapping as in claim 1 wherein: still include platelike casing (1), casing (1) are on a parallel with relief valve main part sets up in its inboard, casing (1) and relief valve frame (4) are connected through connecting piece (8) of a plurality of circumference interval arrangement, sound absorbing material has been laid on the side of casing (1) towards the car outside, leave clearance (2) between sound absorbing material and blade (3).

3. The pressure release valve structure for suppressing blade clapping as in claim 2 wherein: an outward flanging (9) is formed in the circumferential direction of the shell (1).

4. The pressure release valve structure for suppressing blade clapping as in claim 2 wherein: the sound absorbing material is sound absorbing cotton or PU foaming material.

5. The pressure release valve structure for suppressing blade clapping as in claim 1 wherein: the pressure relief valve frame (4) is sleeved with a circle of sealing gasket (5), and the pressure relief valve frame (4) is clamped at the opening of the outer cover (6) and forms sealing with the outer cover (6) through the sealing gasket (5).

6. The pressure release valve structure for suppressing blade clapping as in claim 1 wherein: the blade (3) is made of rubber.

7. An automobile, characterized in that: a pressure relief valve structure comprising the blade clapping sound suppression of any one of claims 1-6.

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