Pressure release device for ventilation system of motor vehicle
By adopting a separate and independent design of windshield plates and buffer plates in the motor vehicle ventilation system and utilizing the air hole and clip-on structure, the problems of high blade pressure relief noise and high resistance are solved, and an efficient and silent pressure relief effect is achieved.
Patent Information
- Application Number
- CN202423142481.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-19
AI Technical Summary
The blades of existing motor vehicle ventilation devices generate loud noises during pressure relief and are difficult to be blown up, which affects the pressure relief effect and the accuracy of the pressure value.
The windshield and buffer sheet are designed to be separated and independent. The windshield and the buffer sheet are connected by a clip. There are air holes on the buffer sheet. The windshield opens under the action of air pressure and closes under the action of its own weight, which reduces resistance and noise.
It improves the timeliness of pressure relief and the accuracy of pressure values, reduces noise and gas passage resistance, and ensures sealing.
Smart Images
Figure CN223456777U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of ventilation, specifically, and particularly relates to a pressure release device for motor vehicle ventilation system. BACKGROUND
[0002] In the prior art, a motor vehicle is usually provided with a ventilation device. The ventilation device usually comprises a pressure release device mounted on a vehicle body. The pressure release device has a gas passage in communication with the gas in the vehicle body and a vane for opening and closing the gas passage.
[0003] The gas passage will often blow open the vane to ensure the circulation of the gas and achieve the purpose of releasing pressure. When the pressure release is completed, the vane will fall again to close the gas passage. When the vane falls, a tapping noise is generated between the vane and the shell. The heavier the vane, the greater the tapping noise. In addition, the vane is not easy to be blown up, and the pressure value during pressure relief is relatively large, which affects the object to be relieved.
[0004] For the problems in the related art, no effective solution has been proposed so far. CONTENT OF THE UTILITY MODEL
[0005] In view of the problems in the related art, the utility model provides a pressure release device for motor vehicle ventilation system to overcome the above technical problems existing in the prior art.
[0006] To solve the above technical problems, the utility model is implemented by the following technical scheme:
[0007] The utility model is a pressure release device for motor vehicle ventilation system, comprising a shell, a gas passage formed inside the shell;
[0008] A clamping piece is arranged on the shell and used for connecting a vane assembly;
[0009] The vane assembly is arranged on the shell through the clamping piece to control the opening and closing of the gas passage under the action of the pressure difference between the inside and outside of the gas passage.
[0010] The vane assembly comprises a wind deflector and a buffer sheet. The wind deflector and the buffer sheet are stacked with each other, and the buffer sheet is located between the wind deflector and the shell to make the buffer sheet contact the shell. In addition, the buffer sheet is provided with a gas hole corresponding to the position of the gas passage.
[0011] Further, the shell comprises:
[0012] A peripheral wall encloses a ventilation area.
[0013] A transverse partition wall is connected to the peripheral wall to divide the ventilation area into a plurality of ventilation cavities.
[0014] A longitudinal partition wall is connected to the peripheral wall and arranged perpendicularly to the transverse partition wall, and each of the ventilation cavities is divided into a plurality of gas passages.
[0015] Further, the transverse partition wall is provided with a plurality of clamping members, and the wind baffle and the buffer sheet are provided with clamping grooves corresponding to the clamping members, so that the wind baffle and the buffer sheet are clamped on the transverse partition wall through the clamping grooves and the clamping members.
[0016] Further, the clamping member comprises a clamping sheet, one end of the clamping sheet is fixed on the transverse partition wall, the other end of the clamping sheet is provided with a limiting tongue, and the connection between the clamping sheet and the limiting tongue is located between the two end faces of the limiting tongue.
[0017] Further, the width of the clamping groove is greater than the thickness of the clamping sheet, so as to provide a space for the movement of the wind baffle and the buffer sheet.
[0018] Further, the shell further comprises a lip plate connected to the end face of the peripheral wall, and the inner side of the lip plate is provided with a sealing sheet, and the sealing sheet is provided with a guide strip, and the guide strip and the peripheral wall are in sliding fit to assist the installation of the sealing sheet.
[0019] Further, the shell further comprises a connecting member provided on the peripheral wall, and the connecting member is used for being connected to an object to be pressure released; wherein the connecting member is an elastic buckle.
[0020] The utility model has the following beneficial effects:
[0021] 1. The wind baffle and the buffer sheet are designed in a split independent mode, that is, both are independent individuals, which reduces the resistance when the wind baffle is blown up, makes the wind baffle easier to be blown up, makes the pressure value required for the object to be pressure released more accurate, and improves the timeliness of pressure release. In addition, the air holes are provided on the buffer sheet, so that the air pressure in the gas passage directly acts on the wind baffle without bearing the gravity of the wind baffle and the buffer sheet at the same time. At the same time, when the wind baffle falls down, the part of the buffer sheet except the air hole area is removed to avoid the impact between the wind baffle and the shell, thereby greatly reducing the noise.
[0022] 2. The setting of the guide strip can effectively prevent the sealing sheet from being squeezed between the lip plate and the object to be pressure released, thereby affecting the sealing property between the two.
[0023] 3. The clamping groove of the buffer sheet is sleeved on the clamping sheet after passing through the limiting tongue, and the limiting tongue is used to prevent the wind baffle from being separated from the clamping sheet.
[0024] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above simultaneously. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.
[0026] Fig. 1 It is a perspective view of the present application;
[0027] Fig. 2 It is an internal structure view of the present application;
[0028] Fig. 3 It is a bottom structure view of the present application.
[0029] In the drawings, the component list represented by each number is as follows:
[0030] 1, shell; 101, gas passage; 102, peripheral wall; 103, transverse partition wall; 104, longitudinal partition wall; 105, sealing sheet; 106, guide bar; 107, connecting piece; 108, lip plate; 2, clamping piece; 201, clamping card; 202, limiting tongue; 3, vane assembly; 301, wind deflector; 302, buffer sheet; 303, air hole; 304, clamping groove. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0032] In the description of the present application, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated component or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.
[0033] Please refer to Figs. 1-3 The present application is a pressure release device for a motor vehicle ventilation system, which comprises:
[0034] Shell 1, the shell inside forms a gas passage 101;
[0035] The clamping piece 2 is arranged on the shell 1 and used for connecting the vane assembly 3;
[0036] The vane assembly 3 is arranged on the shell 1 through the clamping piece 2 and used for controlling opening and closing of the gas passage 101 under the action of the pressure difference between the inside and outside of the gas passage 101;
[0037] The vane assembly 3 comprises a wind baffle 301 and a buffer sheet 302, the wind baffle 301 and the buffer sheet 302 are stacked with each other, and the buffer sheet 302 is located between the wind baffle 301 and the shell 1, so that the buffer sheet 302 is in contact with the shell 1, and the buffer sheet 302 is provided with a gas hole 303 corresponding to the position of the gas passage 101.
[0038] The buffer sheet 302 is made of flannelette, and the wind baffle 301 is made of EPDM rubber. In addition, the wind baffle 301 can also be made of other elastic materials which are not easy to stick to the buffer sheet 302, and the buffer sheet 302 can also be made of other flexible materials.
[0039] In specific use, the wind baffle 302 and the buffer sheet 302 are two pieces of sheet structures which are not adhered to each other. The buffer sheet 302 is mainly used for contacting the shell 1 and is arranged between the wind baffle 301 and the shell 1. When the pressure in the gas passage 101 is greater than the pressure outside the gas passage 101, the wind blows the wind baffle 301 open through the gas hole 303 on the buffer sheet 302, so as to realize the purpose of normal ventilation and pressure relief. When the pressure in the gas passage 101 is not greater than the pressure outside the gas passage 101, the buffer sheet 302 falls on the wind baffle 302 under the action of its own gravity, so as to close the gas passage 101 again and avoid the entry of external dust.
[0040] In the above process, the wind baffle 301 and the buffer sheet 302 are designed in a split independent mode, that is, both of them are independent individuals. Compared with a connected design, the resistance of the wind baffle 301 when being blown up is reduced, the wind baffle 301 is more easily blown up, the pressure value required for the object to be relieved is more accurate, and the timeliness of pressure relief is improved. In addition, the gas hole 303 is arranged on the buffer sheet 302, so that the air pressure in the gas passage 101 directly acts on the wind baffle 301, without bearing the gravity of the wind baffle 301 and the buffer sheet 302 at the same time. At the same time, when the wind baffle 301 falls down, the part of the buffer sheet 302 except the area of the gas hole 303 is removed, so as to avoid the impact of the wind baffle 301 on the shell 1, thereby greatly reducing the noise.
[0041] Based on the above embodiment, the shell 1 comprises:
[0042] The peripheral wall 102 surrounds the ventilation area.
[0043] A plurality of transverse partition walls 103 are connected to the peripheral wall 102, and divide the ventilation area into a plurality of ventilation cavities;
[0044] A plurality of longitudinal partition walls 104 are connected to the peripheral wall 102, and are arranged perpendicularly to the transverse partition walls 103, and divide each of the ventilation cavities into a plurality of gas passages 101.
[0045] After the buffer sheet 302 is provided with the air holes 303, the remaining area only needs to be in contact with the transverse partition walls 103, the longitudinal partition walls 104, and part of the peripheral wall 102, thereby greatly reducing the resistance of the gas passages 101 during exhaust.
[0046] Based on the above embodiment, the transverse partition walls 103 are provided with a plurality of clamping pieces 2, and the wind baffle 301 and the buffer sheet 302 are provided with clamping grooves 304 corresponding to the clamping pieces 2, so that the wind baffle 301 and the buffer sheet 302 are clamped on the transverse partition walls 103 through the clamping grooves 304 and the clamping pieces 2.
[0047] Based on the above embodiment, the clamping piece 2 comprises a clamping sheet 201, one end of the clamping sheet 201 is fixed on the transverse partition wall 103, the other end of the clamping sheet 201 is provided with a limiting tongue 202, and the connection between the clamping sheet 201 and the limiting tongue 202 is located between the two end faces of the limiting tongue 202.
[0048] When the buffer sheet 302 and the wind baffle 301 are installed, the installation methods of the two are the same, and the wind baffle 301 is taken as an example for illustration. First, the clamping groove 304 of the buffer sheet 302 is inserted through the limiting tongue 202 and is sleeved on the clamping sheet 201, and the limiting tongue 202 prevents the wind baffle 301 from being separated from the clamping sheet 201.
[0049] Based on the above embodiment, the width of the clamping groove 304 is greater than the thickness of the clamping sheet 201, so as to provide a space for the movement of the wind baffle 301 and the buffer sheet 302, and avoid increasing the resistance when the wind baffle 301 is opened.
[0050] Based on the above embodiment, the shell 1 further comprises a lip plate 108, the lip plate 108 is connected to the end face of the peripheral wall 102, and the inner side of the lip plate 108 is provided with a sealing sheet 105, the sealing sheet 105 is provided with a guide strip 106, and the guide strip 106 and the peripheral wall 102 are in sliding fit to assist the installation of the sealing sheet 105.
[0051] The arrangement of the guide strip 106 can effectively avoid the displacement of the sealing sheet 105 when the sealing sheet 105 is pressed between the lip plate 108 and the object to be relieved, and affect the sealing between the two.
[0052] Based on the above embodiment, the shell 1 further comprises a connecting piece 107, the connecting piece 107 is opened on the peripheral wall 102, and the connecting piece 107 is used for being connected to an object to be pressure released; wherein the connecting piece 107 is an elastic buckle.
[0053] Through the above technical scheme, 1、The wind deflector 301 and the buffer sheet 302 are independently designed, that is, both are independent individuals, which reduces the resistance when the wind deflector 301 is blown up, makes the wind deflector 301 more easily blown up, makes the pressure value required by the object to be pressure released more accurate, and improves the timeliness of pressure release. In addition, the air hole 303 is opened on the buffer sheet 302, so that the gas pressure in the gas passage 101 directly acts on the wind deflector 301 without bearing the gravity of the wind deflector 301 and the buffer sheet 302 at the same time. At the same time, when the wind deflector 301 falls down, the part of the buffer sheet 302 except the area of the air hole 303 is removed, so as to avoid the impact between the wind deflector 301 and the shell 1, thereby greatly reducing the noise;
[0054] 2、The setting of the guide strip 106 can effectively avoid the displacement of the sealing sheet 105 when it is pressed between the lip plate 108 and the object to be pressure released, thereby affecting the sealing between the two;
[0055] 3、The clamping groove 304 of the buffer sheet 302 is inserted through the limiting tongue 202 and is sleeved on the card 201, and the limiting tongue 202 is used to prevent the wind deflector 301 from separating from the card 201.
[0056] In the description of the specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0057] The above disclosed preferred embodiments of the utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and describes these embodiments in order to better explain the principles and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.
Claims
1. A pressure relief device for a motor vehicle ventilation system, characterized in that The utility model relates to a shell, gas passage is formed inside the shell, clamping piece is arranged on the shell and is used for connecting vane assembly, the vane assembly is arranged on the shell through the clamping piece and is used for controlling the opening and closing of the gas passage under the action of the pressure difference inside and outside the gas passage, the vane assembly includes wind baffle and buffer piece, the wind baffle and buffer piece are overlapped with each other, and the buffer piece is located between the wind baffle and the shell to make the buffer piece contact with the shell, and the buffer piece is provided with gas hole corresponding to the position of the gas passage. The shell includes a peripheral wall that encloses a ventilation area, a transverse partition wall connected to the peripheral wall and dividing the ventilation area into a plurality of ventilation cavities, and a longitudinal partition wall connected to the peripheral wall and arranged perpendicularly to the transverse partition wall to divide each ventilation cavity into a plurality of gas passages. The transverse partition wall is provided with a plurality of clamping pieces. The wind baffle and the buffer piece are provided with clamping grooves corresponding to the clamping pieces, so that the wind baffle and the buffer piece are clamped on the transverse partition wall through the clamping grooves and the clamping pieces. The clamping piece includes a clamping plate, one end of the clamping plate is fixed to the transverse partition wall, and the other end of the clamping plate is provided with a limiting tongue.
2. A pressure relief device for a motor vehicle ventilation system according to claim 1, wherein The connection between the clamping plate and the limiting tongue is located between the two end faces of the limiting tongue. The width of the clamping groove is greater than the thickness of the clamping plate to provide a clearance for the movement of the wind baffle and the buffer piece. The shell further includes a lip plate connected to the end face of the peripheral wall. The inner side of the lip plate is provided with a sealing piece, and the sealing piece is provided with a guide strip that is in sliding cooperation with the peripheral wall to assist the installation of the sealing piece.
3. A pressure relief device for a motor vehicle ventilation system according to claim 2, wherein The shell further includes a connecting piece provided on the peripheral wall and used for connecting to an object to be depressurized. The connecting piece is an elastic buckle.
4. A pressure relief device for a motor vehicle ventilation system according to claim 3, wherein 5. A pressure relief device for a motor vehicle ventilation system according to claim 4, wherein 6. A pressure relief device for a motor vehicle ventilation system according to claim 2, wherein 7. A pressure relief device for a motor vehicle ventilation system according to claim 2, wherein