CN211203106U

CN211203106U - Passenger cabin relief valve and car

Info

Publication number: CN211203106U
Application number: CN201922098485.3U
Authority: CN
Inventors: 董文涛; 严旭; 文苑; 陈静
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-08-07
Anticipated expiration: 2029-11-29

Abstract

The utility model discloses a passenger cabin pressure release valve, which comprises a pressure release valve body, wherein the middle part of the pressure release valve body is provided with a front and back through notch, a plurality of rotatable pressure release films are arranged in the pressure release valve body and used for controlling the communication between the internal space and the external space of an automobile, a plurality of sound insulation plates are arranged in the pressure release valve body from top to bottom, the plurality of sound insulation plates are positioned behind the pressure release films, a plurality of first sound insulation plates which are arranged at intervals are arranged on a single sound insulation plate, and a first air vent is formed between the adjacent first sound insulation plates; the upper surface of the sound insulation plate is adhered with a damping rubber sheet for absorbing the impact force of the falling process of the pressure relief rubber sheet; and a second vent hole is arranged at the position of the shock absorption film corresponding to the first vent hole. The automobile decompression rubber sheet impact of falling back can be absorbed, the impact noise of the decompression rubber sheet is reduced, external environment noise is effectively prevented from being transmitted into an automobile through the decompression valve, and the comfort level is improved. The utility model also discloses an automobile, comprising a vehicle body, the automobile body includes foretell passenger cabin relief valve.

Description

Passenger cabin relief valve and car

Technical Field

The utility model relates to an automobile parts, concretely relates to passenger cabin relief valve and car.

Background

With the gradual expansion of the automobile industry and the popularization of applications, the riding comfort of the automobile is more and more emphasized by users. The diversity of the operating conditions of the vehicle also puts higher demands on the reliability of its functions. General passenger cabin relief valve structural design, at the door closing moment, the driving arouses under user's common use operating mode such as the great range shake of automobile body through uneven road surface, can't avoid opening/close the impact noise that the impact brought in the twinkling of an eye because of the relief valve film, open the air conditioner extrinsic cycle in the car simultaneously, the relief valve film is opened, the relief valve body does not have the design of effectively blocking the noise path, external environment noise (like rear of a vehicle exhaust noise, the back car is whistling etc.) passes through the relief valve and spreads into in the car, arouse user's discomfort.

Disclosure of Invention

The utility model aims at providing a passenger cabin relief valve and car, it can absorb the impact of falling back of pressure release film, alleviates the impact noise of pressure release film, effectively avoids external environment noise to spread into the car through the relief valve in, improves the comfort level.

The utility model discloses a passenger cabin relief valve, including the relief valve body, this relief valve body middle part is equipped with the notch that runs through from beginning to end, be equipped with a plurality of rotatable pressure release films in the relief valve body, be used for controlling the intercommunication of car inner space and exterior space, top-down is equipped with a plurality of acoustic baffles in the relief valve body, a plurality of acoustic baffles are located the pressure release film rear, be equipped with the first baffle of polylith interval arrangement on single acoustic baffle, form first air vent between the adjacent first baffle; the upper surface of the sound insulation plate is adhered with a damping rubber sheet for absorbing the impact force of the pressure relief rubber sheet in the falling process; and a second vent hole is formed in the position, corresponding to the first vent hole, of the shock absorption film.

Furthermore, a connecting plate extending backwards is arranged at the left end or the right end of the first sound baffle, a second sound baffle is vertically arranged at the free end of the connecting plate, and the first sound baffle and the second sound baffle are respectively positioned at two sides of the connecting plate.

Further, the sound insulation board is the swash plate that the front end is low, the rear end is high, and the sound insulation board is unanimous with the quantity of pressure release film, and a plurality of pressure release films hinge on the relief valve body through the couple, the couple sets up in relief valve body front end top or sound insulation board front end.

Further, buckle fixedly connected with sound-proof housing is passed through at relief valve body rear portion, the sound-proof housing is whole to be the U type, and its open end is towards the relief valve body.

Further, the inner wall of the sound-proof cover is provided with two components of sound-absorbing cotton.

Further, the sound-proof housing front end is equipped with a plurality of joint pieces, the last joint groove that corresponds of relief valve body, the joint piece card of sound-proof housing in the joint inslot of relief valve body.

Furthermore, the edge of the front end of the pressure relief valve body is expanded outwards to form a mounting surface, and a plurality of reinforcing ribs are arranged between the mounting surface and the pressure relief valve body.

An automobile comprises a body, wherein the body comprises the passenger compartment pressure release valve.

Compared with the prior art, the utility model following beneficial effect has.

1. The utility model discloses a paste at sound insulation board upper surface and be equipped with the shock-absorbing film, because the shock-absorbing film has the effect that the absorption buffering is strikeed, when the pressure release film falls back and strikes the relief valve body, it at first contacts the shock-absorbing film, and whereabouts impact energy is absorbed by the shock-absorbing film, alleviates the production of relief valve film impact noise from the source.

2. The utility model discloses a set up the first baffle of polylith interval arrangement on single baffle, first baffle left end or right-hand member are equipped with the connecting plate of ranging backward, and the free end of this connecting plate is equipped with the second baffle, first baffle and second baffle are located the both sides of connecting plate respectively, stagger arrangement around first baffle and the second baffle promptly. When the car back exhaust noise spreads into the relief valve body and the relief valve film is in the state of perk, the sound wave receives the effect of the reduction of the reflection of blockking of first baffle and second baffle and local right angle slot, and the noise amplitude who enters into relief valve body rear side can reduce to about original 50%.

3. The utility model discloses pass through buckle fixedly connected with sound-proof housing at relief valve body rear portion, the sound-proof housing forms the cavity structure with the relief valve body, and the sound-proof housing inner wall is equipped with two ingredients and inhales the sound cotton, see through the first baffle of relief valve body when external environment noise, enter into the in-process of the cavity of compriseing the sound-proof housing, the partial noise is inhaled the sound cotton direct absorption by the bi-component, the part passes through the reflection absorption of sound-proof housing cavity, the noise amplitude who enters into passenger cabin inside can reduce to original 20% about.

4. The utility model discloses simple structure can guarantee opening of pressure release film when the car closes the door, and the circulation of the interior gas of car is when smoothly flowing the automobile body outside, can alleviate the noise because of the impact of pressure release film brings. And the noise transmission path of the external environment can be blocked, quiet and comfortable riding experience is brought to passengers in the vehicle, and the comfort level of the passengers in the vehicle is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the sound enclosure of the present invention;

fig. 3 is a schematic structural diagram of the pressure relief valve body of the present invention;

FIG. 4 is a schematic structural view of the cushion rubber sheet of the present invention;

FIG. 5 is a schematic structural view of the pressure relief film of the present invention;

fig. 6 is an assembly elevation view of the present invention;

fig. 7 is a sectional view a-a of fig. 6.

In the figure, 1-relief valve body, 11-couple, 12-joint groove, 13-installation face, 14-strengthening rib, 2-pressure release film, 21-couple hole, 3-sound insulation board, 31-mounting groove, 4-first sound insulation board, 41-first through hole, 5-second sound insulation board, 6-connecting plate, 7-shock absorption film, 71-second through hole, 8-sound-proof housing, 81-joint piece, 9-double-component sound absorption cotton.

Detailed Description

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

Referring to fig. 1 to 5, the passenger compartment pressure release valve includes a pressure release valve body 1, a front and a rear through notches are formed in the middle of the pressure release valve body 1, and three rotatable pressure release films 2 are arranged in the pressure release valve body 1 and used for controlling communication between an inner space and an outer space of an automobile. Three sound insulation boards 3 are arranged in the pressure release valve body 1 from top to bottom, the sound insulation boards 3 are inclined boards with low front ends and high rear ends, and the three sound insulation boards 3 are located behind the pressure release rubber sheets 2 and correspond to the pressure release rubber sheets 2 one by one.

The specific connection mode of the pressure relief rubber sheet 2 is as follows: two hooks 11 are arranged at the top of the front end of the pressure release valve body 1, two hooks 11 are respectively arranged at the front ends of the first sound insulation plate 3 and the second sound insulation plate 3 from top to bottom, and the three pressure release films 2 are hinged to the two hooks 11 at the top of the front end of the pressure release valve body 1 or the two hooks 11 at the front end of the sound insulation plate 3 through hook holes 21.

A plurality of first sound baffles 4 which are arranged at intervals are arranged on a single sound insulation plate 3, and first vent holes 41 are formed between every two adjacent first sound baffles 4; the left end or the right end of the first sound baffle 4 is provided with a connecting plate 6 extending backwards, the free end of the connecting plate 6 is vertically provided with a second sound baffle 5, and the first sound baffle 4 and the second sound baffle 5 are respectively positioned on two sides of the connecting plate 6.

The upper surface of the sound insulation plate 3 is provided with a mounting groove 31, and a damping rubber sheet 7 is attached to the mounting groove 31 and used for absorbing the impact force generated in the falling process of the pressure relief rubber sheet 2. And a second vent hole 71 is arranged at the position of the shock absorption film 7 corresponding to the first vent hole 41, so that the air flow is convenient to circulate.

The utility model discloses a relief valve body 1, including relief valve body 1, buckle fixedly connected with sound-proof housing 8 is passed through to relief valve body 1 rear portion, sound-proof housing 8 wholly is the U type, and its open end is towards relief valve body 1. In order to enhance the noise reduction effect, double-component sound absorption cotton 9 is bonded on the inner wall of the sound insulation cover 8.

The concrete connection mode of the soundproof cover 8 is as follows: the left and right front ends of the sound-proof housing 8 are respectively provided with three clamping sheets 81, the pressure release valve body 1 is correspondingly provided with a clamping groove 12, and the clamping sheets 81 of the sound-proof housing 8 are clamped in the clamping groove 12 of the pressure release valve body 1.

The edge of the front end of the pressure relief valve body 1 is expanded outwards to form a mounting surface 13, and a plurality of reinforcing ribs 14 are arranged between the mounting surface 13 and the pressure relief valve body 1 in order to ensure the structural strength of the mounting surface.

Referring to fig. 6 and 7, in operation, a cushion rubber sheet 7 with a certain thickness is adhered in the mounting groove 31 of the sound insulation plate 3 by high-strength glue, and the second vent hole 71 on the cushion rubber sheet 7 is aligned with the first vent hole 41 formed on the first sound insulation plate 4 on the sound insulation plate 3. The bracket of the hook hole 21 on the pressure release rubber sheet 2 is buckled on the hook 11 of the pressure release valve body 1, so that the rotation connection between the two is realized. The double-component sound absorption cotton 9 is bonded on the inner wall of the sound insulation cover 8, then the clamping sheet 81 on the sound insulation cover 8 is clamped in the clamping groove 12 of the pressure release valve body 1, the sound insulation cover 8 and the pressure release valve body form a cavity which is communicated up and down, and the smooth air outlet of the air conditioner external circulation is ensured and the door closing resistance is reduced. And finally, integrally embedding the pressure relief valve into the metal plate hole of the vehicle body to complete the assembly of the pressure relief valve.

At the moment of closing the door or when the air blower is opened when the automobile air conditioner is in an external circulation mode, the air pressure of the passenger cabin is higher than the air pressure of the external environment, the air pressure in the passenger cabin overcomes the gravity of the pressure release film 2, the pressure release film 2 tilts along the axis of the hook 11, the air in the passenger cabin is discharged to the outside of the passenger cabin along the air outlet channel between the first sound baffle 4 and the second sound baffle 5, the pressure in the passenger cabin is released, and the internal air pressure is kept at a lower level. When the process of closing the door finishes or closes the air-blower in the twinkling of an eye, passenger cabin inside atmospheric pressure reduces in the twinkling of an eye, falls back under the effect of the gravity of pressure release film 2 and resilience force, if directly fall back to relief valve body 1 on, great impact can arouse impact noise, through addding shock attenuation film 7 on sound insulation board 3, pressure release film 2 falls back its impact of in-process and is absorbed by shock attenuation film 7, has avoided impact noise's production. The same principle can also be applied to the dithering noise of the pressure relief film 2 caused by the dithering of the automobile when the automobile runs on an uneven road surface.

Because the pressure release valve is arranged in the position close to the exhaust funnel at the rear part of the whole automobile, automobile exhaust noise is easy to be transmitted into the passenger compartment through the opening of the pressure release valve, and discomfort is caused to drivers and passengers. The pressure relief valve body 1 is internally and additionally provided with the sound insulation plate 3, the sound insulation plate 3 is provided with a plurality of first sound insulation plates 4 which are arranged at intervals, and a first vent hole 41 is formed between every two adjacent first sound insulation plates 4; the left end or the right end of the first sound baffle 4 is provided with a connecting plate 6 extending backwards, the free end of the connecting plate 6 is provided with a second sound baffle 5, and the first sound baffle 4 and the second sound baffle 5 are respectively positioned on two sides of the connecting plate 6. Referring to fig. 7, a solid scissor indicates a noise transmission path, a hollow scissor indicates a pressure relief airflow direction, an elongated cavity is formed between each set of the first sound baffle and the second sound baffle, when external exhaust noise is transmitted to the position of the sound baffle 3, part of the external exhaust noise is absorbed by the pressure relief rubber sheet 2 and the cushion rubber sheet 7, and part of the external exhaust noise is blocked and attenuated by the elongated cavity formed by the first sound baffle 4 and the second sound baffle 5. The sound wave receives the blocking reflection of the first sound baffle 4 and the second sound baffle 5 and the reduction effect of the local right-angle groove, and the noise amplitude entering the rear side of the pressure release valve body 1 can be reduced to about 50% of the original noise amplitude.

Make an uproar once falls through pressure release film 2 and shock attenuation film 7, after making an uproar falls in the secondary of first baffle 4 and second baffle 5, exhaust noise passes through relief valve body 1, sound-proof housing 8 and bi-component once more and inhales the cotton cavity of 9 constitutions of sound, and exhaust noise is at first partly inhales the cotton 9 absorption of sound by the bi-component, rebounds after 8 contacts with the sound-proof housing, attenuates to lower level gradually inside the cavity. Because part of the noise is directly absorbed by the bi-component sound absorption cotton 9 and part of the noise is reflected and absorbed by the cavity of the sound insulation cover 8, the amplitude of the noise entering the passenger compartment is reduced to about 20 percent of the original amplitude.

The utility model discloses simple structure can guarantee opening of pressure release film when the car closes the door, and the circulation of the interior gas of car is when smoothly flowing the automobile body outside, can alleviate the noise because of 2 impacts of pressure release film bring. And the noise transmission path of the external environment can be blocked, quiet and comfortable riding experience is brought to passengers in the vehicle, and the comfort level of the passengers in the vehicle is improved.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a passenger cabin relief valve, includes relief valve body (1), the notch that runs through around this relief valve body (1) middle part is equipped with, be equipped with a plurality of rotatable pressure release films (2) in relief valve body (1) for control car inner space and outer space's intercommunication, its characterized in that: a plurality of sound insulation plates (3) are arranged in the pressure release valve body (1) from top to bottom, the sound insulation plates (3) are located behind the pressure release rubber sheet (2), a plurality of first sound insulation plates (4) which are arranged at intervals are arranged on a single sound insulation plate (3), and first vent holes (41) are formed between every two adjacent first sound insulation plates (4);

the upper surface of the sound insulation plate (3) is adhered with a damping rubber sheet (7) for absorbing the impact force of the falling process of the pressure relief rubber sheet (2);

and a second vent hole (71) is formed in the position, corresponding to the first vent hole (41), of the shock absorption film (7).

2. The passenger compartment pressure relief valve of claim 1, wherein: first fender sound board (4) left end or right-hand member are equipped with connecting plate (6) that extend backward, and the free end of this connecting plate (6) is equipped with second fender sound board (5) perpendicularly, first fender sound board (4) and second fender sound board (5) are located the both sides of connecting plate (6) respectively.

3. Passenger compartment pressure relief valve according to claim 1 or 2, characterized in that: the sound insulation board (3) is an inclined board with a low front end and a high rear end, the sound insulation board (3) is consistent with the pressure relief films (2), the pressure relief films (2) are hinged to the pressure relief valve body (1) through the hook (11), and the hook (11) is arranged at the top of the front end of the pressure relief valve body (1) or at the front end of the sound insulation board (3).

4. Passenger compartment pressure relief valve according to claim 1 or 2, characterized in that: the pressure release valve body (1) rear portion is through buckle fixedly connected with sound-proof housing (8), sound-proof housing (8) wholly is the U type, and its open end is towards pressure release valve body (1).

5. The passenger compartment pressure relief valve of claim 4 wherein: the inner wall of the sound-proof cover (8) is provided with two-component sound-absorbing cotton (9).

6. The passenger compartment pressure relief valve of claim 4 wherein: the utility model discloses a pressure relief valve, including sound-proof housing (8), relief valve body (1), the correspondence is equipped with joint groove (12) sound-proof housing (8) front end is equipped with a plurality of joint pieces (81), the joint piece (81) card of sound-proof housing (8) is held in the joint groove (12) of relief valve body (1).

7. Passenger compartment pressure relief valve according to claim 1 or 2, characterized in that: the edge of the front end of the pressure relief valve body (1) is expanded outwards to form a mounting surface (13), and a plurality of reinforcing ribs (14) are arranged between the mounting surface (13) and the pressure relief valve body (1).

8. An automobile, comprising a body, characterized in that: the vehicle body comprises the passenger compartment pressure relief valve of any one of claims 1-7.