CN116252722A - Sound insulation device of pressure release valve for vehicle and control method of sound insulation device - Google Patents

Abstract

The invention provides a sound-proof device of a pressure release valve for a vehicle and a control method thereof, wherein the sound-proof device is fixedly connected with the pressure release valve through a base, and the sound-proof device also comprises a first sound-proof cover fixedly connected with one end of the base and a second sound-proof cover rotationally connected with the base, wherein the second sound-proof cover is arranged on the inner side of the first sound-proof cover so as to enable the second sound-proof cover to move in a space formed by the first sound-proof cover and the base under the action of a driving motor, and particularly, different opening sizes of the pressure release valve can be realized through the movement of the second sound-proof cover, and finally, the size of a pressure release channel is changed, thereby ensuring the stability of a blade switch of the pressure release valve, and effectively improving the problems of large noise in the vehicle, low external circulation ventilation efficiency and low refrigerating/heating efficiency of an air conditioner in the driving process.

Description

Sound insulation device of pressure release valve for vehicle and control method of sound insulation device

Technical Field

The invention relates to the technical field of pressure relief valve sound insulation devices for vehicles, in particular to a pressure relief valve sound insulation device for a vehicle and a control method thereof.

Background

Along with the continuous improvement of the comfort requirement of users on the vehicle, the manufacturing level of the vehicle body is also continuously improved, the sealing performance of the vehicle is better and better, and the pressure release valve is used as a key part for balancing the pressure inside and outside the vehicle, so that the refrigerating and heating performance of an air conditioner and the pressure feeling of a door closing ear are influenced, and the noise level in the vehicle is also more and more important.

The common relief valve relies on self gravity that the blade inclination produced to close the passageway inside and outside the car, and when the vehicle was closed or takes a breath, the car internal pressure increased, and the blade can then open. It should be noted that, when the automobile runs at a high speed or under the working condition of accelerating a large accelerator, the pressure in the automobile is greater than that outside the automobile, the blades of the traditional pressure relief valve are opened, but the blades of the traditional pressure relief valve are often affected by wind resistance and are in a partially opened state, so that the internal pressure and the external pressure cannot be effectively balanced, the pressure relief valve becomes a weak point of sound insulation of the automobile body, the noise level in the automobile is directly influenced, meanwhile, the opening degree of the blades of the traditional pressure relief valve cannot be controlled, the sealing difficulty of the blades is high, and the ventilation efficiency and the air conditioning refrigerating or heating efficiency during the external circulation of the automobile are influenced.

Disclosure of Invention

Accordingly, the invention aims to provide a sound insulation device of a pressure release valve for a vehicle and a control method thereof, which are used for solving the problems that the existing pressure release valve blade is easily affected when the vehicle runs at a high speed, so that the noise in the vehicle is large, the external circulation ventilation efficiency is low and the air conditioner refrigerating/heating efficiency is low in the running process of the vehicle.

According to the embodiment of the invention, the sound insulation device of the pressure release valve for the vehicle comprises a base, a first sound insulation cover fixedly connected with one end of the base and a second sound insulation cover rotatably connected with the base, wherein one side, away from the first sound insulation cover and the second sound insulation cover, of the base is used for being fixedly connected with the pressure release valve;

the second sound-proof cover is arranged on the inner side of the first sound-proof cover, so that the second sound-proof cover moves in a space formed by the first sound-proof cover and the base under the action of the driving motor.

Further, the base is of a frame structure matched with the pressure relief valve, and buckles are arranged on the periphery of the base, so that the base is installed on the pressure relief valve through the buckles.

Further, the base extends to the first sound-proof housing direction and is fixed, wherein, the mounting hole has been seted up on the fixed part, the mounting hole is used for arranging the drive shaft, the one end of drive shaft with second sound-proof housing fixed connection, the other end pass through the gear with driving motor connects, works as when driving motor receives the rotation signal of controller, driving motor passes through the gear drives the drive shaft rotates according to predetermineeing the rule, so that the second sound-proof housing is rotatory around the drive shaft first sound-proof housing with the space internal activity that the base formed.

Further, sound absorbing materials are coated on one side, far away from the first sound-proof cover, of the second sound-proof cover.

Further, the first sound-proof housing and the second sound-proof housing are arc-shaped.

Further, the distance between any point on the first sound insulation cover and the center point of the driving shaft is the same, and the opening of the first sound insulation cover faces downwards.

Further, one end of the first sound-proof housing is always attached to the inner wall of the second sound-proof housing, and when the vehicle pressure release valve sound-proof device is in an incompletely closed state, a gap is formed between the first sound-proof housing and the second sound-proof housing, and the gap gradually increases along the opening direction of the first sound-proof housing.

According to an embodiment of the present invention, a control method for controlling the above-described pressure release valve sound insulation device for a vehicle includes:

acquiring vehicle information, wherein the vehicle information at least comprises vehicle door opening and closing information, air conditioner control information and vehicle speed information;

judging whether the vehicle door is closed or not according to the vehicle door opening and closing information;

if yes, judging whether the air conditioner is in an external circulation state according to the air conditioner control information;

if yes, the second sound-proof housing is controlled to be closed according to the preset position according to the vehicle speed information.

Further, when the air conditioner is judged to be in the external circulation state, according to the vehicle speed information, the driving motor is controlled to act on the second sound-proof housing, so that the second sound-proof housing is closed according to the preset position, and the method comprises the following steps:

controlling the pressure release valve blade to be completely opened, and simultaneously controlling the second sound insulation cover to be completely closed;

acquiring a target rotation position of the second sound-proof housing when the pressure release valve blade rotates under each vehicle speed value;

and establishing a mapping model of each vehicle speed value and the corresponding target rotation position.

Further, when the air conditioner is judged to be in the external circulation state, according to the vehicle speed information, controlling the driving motor to act on the second sound-proof housing, so that the second sound-proof housing is closed according to the preset position, the method comprises the following steps:

acquiring a current vehicle speed value, and inputting the current vehicle speed value into the mapping model to obtain a corresponding rotation position;

and controlling the second sound insulation cover to be closed according to the rotating position.

Compared with the prior art: through base with noise-proof device and relief valve fixed connection, because noise-proof device still includes the first sound-proof housing with base one end fixed connection, and the second sound-proof housing who rotates with the base and be connected, wherein, the inboard of first sound-proof housing is arranged in to the second sound-proof housing, under driving motor's effect, make the second sound-proof housing at the space internal activity that first sound-proof housing and base formed, specifically, can realize the different opening size of relief valve through the activity of second sound-proof housing, finally change the size of relief passage, thereby can guarantee the stability of relief valve blade switch, effectively improve the vehicle in the driving process, the noise is big in the car, the extrinsic cycle ventilation inefficiency and the problem that air conditioner refrigeration/thermal efficiency is low.

Drawings

Fig. 1 is a schematic view showing a structure of a sound insulation device of a pressure release valve for a vehicle in a first embodiment of the present invention when the sound insulation device is fully opened;

fig. 2 is a schematic view showing a structure of a sound insulation device of a pressure release valve for a vehicle in a first embodiment of the present invention when the sound insulation device is partially closed;

fig. 3 is a schematic view showing a structure of a sound insulation device of a pressure release valve for a vehicle in accordance with a first embodiment of the present invention when the sound insulation device is fully closed;

fig. 4 is a schematic view showing a structure of a sound insulation device of a pressure release valve for a vehicle in a second embodiment of the present invention when the sound insulation device is fully opened;

fig. 5 is a schematic view showing a structure of a sound insulation device of a pressure release valve for a vehicle in a second embodiment of the present invention when the sound insulation device is partially closed;

fig. 6 is a schematic view showing a structure of a sound insulation device of a pressure release valve for a vehicle in a second embodiment of the present invention when the sound insulation device is completely closed;

fig. 7 is a flowchart showing an implementation of a method for controlling the vehicle pressure release valve soundproof device.

The following detailed description will further illustrate the invention with reference to the above-described drawings.

Detailed Description

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Several embodiments of the invention are presented in the figures. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1, 2 and 3, fig. 1 is a schematic structural view of a vehicle pressure release valve sound insulation device in a first embodiment of the present invention when the vehicle pressure release valve sound insulation device is fully opened, fig. 2 is a schematic structural view of a vehicle pressure release valve sound insulation device in a first embodiment of the present invention when the vehicle pressure release valve sound insulation device is partially closed, and fig. 3 is a schematic structural view of a vehicle pressure release valve sound insulation device in a first embodiment of the present invention when the vehicle pressure release valve sound insulation device is fully closed, wherein the vehicle pressure release valve sound insulation device comprises a base 1, a first sound insulation cover 2 fixedly connected with one end of the base 1, and a second sound insulation cover 3 rotatably connected with the base 1.

Wherein, one side that first sound-proof housing 2 and second sound-proof housing 3 were kept away from to base 1 is used for with relief valve fixed connection, and specifically, base 1 is the frame structure with the relief valve adaptation, is provided with buckle (not shown) around base 1 to install base 1 on the relief valve through the buckle, convenient to detach, simultaneously, can match base 1 and the sound-proof housing with its size looks adaptation to the relief valve of difference.

Specifically, the middle area of base 1 both sides extends fixed part 11 to first sound proof housing 2 direction, wherein, the mounting hole 12 has been seted up on the fixed part 11, the mounting hole 12 is used for arranging the drive shaft, the one end and the second sound proof housing 3 fixed connection of drive shaft, the other end passes through the gear and is connected with driving motor, when driving motor received the rotation signal of controller, driving motor passes through the gear and drives the drive shaft and rotate according to predetermineeing the rule, because the inboard of first sound proof housing 2 is arranged in to second sound proof housing 3 to make second sound proof housing 3 rotate around the drive shaft, the space internal activity that forms at first sound proof housing 2 and base 1, can understand, according to the rotation of second sound proof housing 3, can realize the different opening sizes of relief valve, finally change the size of pressure release passageway.

In this embodiment, the first sound-proof housing 2 and the second sound-proof housing 3 are both circular arc-shaped, and the outer surfaces are spherical, wherein the first sound-proof housing 2 is opened downwards, and the second sound-proof housing 3 is opened up and down, because the fixing portion 11 is located in the middle area of the two sides of the base 1, then the driving shaft is also located in the middle area of the base 1, it can be understood that the distance from any point on the first sound-proof housing 2 to the center point of the driving shaft is the same, the distance from any point on the second sound-proof housing 3 to the center point of the driving shaft is the same, and the distance from any point on the first sound-proof housing 2 to the center point of the driving shaft is greater than the distance from any point on the second sound-proof housing 3 to the center point of the driving shaft, i.e. the second sound-proof housing 3 moves in the first sound-proof housing 2.

In addition, in order to increase the sound absorption performance when the soundproof device is partially opened, a side of the second soundproof cover 3 away from the first soundproof cover 2 is coated with a sound absorbing material 31, wherein the sound absorbing material 31 may be sound absorbing cotton, has a thickness of about 10mm, and completely covers the inner wall surface of the second soundproof cover 3.

Example two

Referring to fig. 4, 5 and 6, fig. 4 is a schematic structural view of a completely opened vehicle pressure release valve sound insulation device in a second embodiment of the present invention, fig. 5 is a schematic structural view of a partially closed vehicle pressure release valve sound insulation device in a second embodiment of the present invention, and fig. 6 is a schematic structural view of a completely closed vehicle pressure release valve sound insulation device in a second embodiment of the present invention, wherein the vehicle pressure release valve sound insulation device in the second embodiment of the present invention is different from the first embodiment of the present invention in that a position of the base 1 extending out of the fixing portion 11 in the direction of the first sound insulation cover 2 is different, one of the arcs of the first sound insulation cover 2 and the second sound insulation cover 3 is a spherical arc, and the other is an ellipsoidal arc.

Specifically, in the first embodiment of the present invention, the arcs of the first sound-proof housing 2 and the second sound-proof housing 3 are spherical arcs, so that a fixed gap is always present between the first sound-proof housing 2 and the second sound-proof housing 3, which results in poor sealing effect and affects the sound-proof effect to a certain extent.

It should be noted that, when the pressure release valve sound insulation device for a vehicle is in an incompletely closed state, a gap is formed between the first sound insulation cover 2 and the second sound insulation cover 3, and the gap gradually increases along the opening direction of the first sound insulation cover 2, and as can be understood from fig. 4, 5 and 6, the major axis radius of the ellipse of the second sound insulation cover 3 is similar to the radius of the first sound insulation cover 2, that is, the distance from the fixing portion 11 to the upper end of the base 1 is similar, so that the second sound insulation cover 3 can maintain a better sealing fit in any state when rotating around the rotation axis. In addition, the minor axis radius of the ellipse of the second sound-proof housing 3 is close to the distance from the fixing portion 11 to the lower end of the base 1, i.e., when the second sound-proof housing 3 is rotated to the state that the relief valve is completely closed, the second sound-proof housing 3 just completely covers the base 1.

In summary, according to the pressure release valve sound insulation device for the vehicle, the sound insulation device is fixedly connected with the pressure release valve through the base, and the sound insulation device further comprises the first sound insulation cover fixedly connected with one end of the base and the second sound insulation cover rotationally connected with the base, wherein the second sound insulation cover is arranged on the inner side of the first sound insulation cover, so that the second sound insulation cover moves in a space formed by the first sound insulation cover and the base under the action of the driving motor, and particularly, different opening sizes of the pressure release valve can be realized through the movement of the second sound insulation cover, and finally, the size of a pressure release channel is changed, so that the stability of a pressure release valve blade switch can be ensured, and the problems of high noise in the vehicle, low external circulation ventilation efficiency and low refrigerating/heating efficiency of an air conditioner can be effectively improved in the driving process of the vehicle.

Example III

The third embodiment of the present invention further provides a method for controlling a sound-insulating device of a pressure release valve for a vehicle, referring to fig. 7, which is a flowchart for implementing the method for controlling the sound-insulating device of the pressure release valve for a vehicle, where the method specifically includes:

step S100, acquiring vehicle information, wherein the vehicle information at least includes door opening and closing information, air conditioner control information and vehicle speed information.

Step S200, determining whether the vehicle door is closed according to the door opening and closing information, if yes, executing step S300.

Specifically, when the driver or the passenger opens the door, when any door has the state of opening the door, after the controller detects this signal, open the signal with the relief valve passageway and input for driving motor, driving motor drives the drive shaft, rotates the second sound proof housing around anticlockwise to the relief valve sound proof device is opened completely. When the door needs to be closed, the pressure release channel is completely opened, the gas resistance is minimum, the pressure release valve blade is opened, and the closing pressure ear feeling is optimized.

Step S300, determining whether the air conditioner is in an external circulation state according to the air conditioner control information, if so, executing step S400.

When all the vehicle doors are closed, and the air conditioner is in a defrosting and demisting state, at the moment, the air conditioner is opened in an external circulation mode, the controller still controls the driving motor, the pressure release valve soundproof device is completely opened, defrosting and demisting effects are enhanced, and a specific pressure release valve soundproof device control strategy can be shown in the following table.

	Air conditioner internal circulation	Air conditioner external circulation
			Door opening	The second sound-proof cover is opened	The second sound-proof cover is opened
Door lock	Second sound-proof cover	The second sound-proof cover is opened

And step S400, controlling the second sound-proof housing to be closed according to the preset position according to the vehicle speed information.

Specifically, when all the doors are closed and the vehicle is in a running state, after the controller detects signals, the pressure release valve channel closing signals are input to the driving motor, the driving motor drives the driving shaft, and the second sound-proof housing rotates clockwise until the pressure release valve sound-proof device is completely closed. At this time, noise transmitted from the air such as tire noise and exhaust noise is blocked by the soundproof cover, and the quietness in the vehicle is further improved.

It should be noted that, in order to more intelligently control the rotation angle of the second sound-proof housing so as to achieve balance between the internal and external pressure adjusting effect and the sound insulation effect, firstly, a mapping model of each vehicle speed value and a corresponding target rotation position needs to be established, specifically, the pressure release valve blades are controlled to be fully opened, the second sound-proof housing is controlled to be fully closed at the same time, then, under the influence of different air currents, the target rotation position of the second sound-proof housing when the pressure release valve blades are closed and rotated is simulated, the target rotation position is recorded, and finally, the mapping model is established according to each vehicle speed value and the corresponding target rotation position. And when the vehicle speed value is applied specifically, inputting the vehicle speed value obtained in real time into the mapping model, feeding back the corresponding rotating position in real time, and controlling the second sound-proof housing to be opened as far as possible, but not to reach the rotating position, so as to realize the optimal air pressure balance effect and sound-proof effect.

In summary, according to the method for controlling the sound insulation device of the pressure release valve for the vehicle in the above embodiment of the present invention, the vehicle information is obtained, where the vehicle information at least includes door opening and closing information, air conditioning control information and vehicle speed information, and whether the door is closed is determined according to the door opening and closing information, if yes, whether the air conditioner is in an external circulation state is determined according to the air conditioning control information, and if yes, the second sound insulation cover is controlled to be closed according to a preset position according to the vehicle speed information, so that the sound insulation device of the pressure release valve is adapted to various states of the vehicle, noise in the vehicle and refrigerating/heating efficiency are optimized, and meanwhile, closing door ear pressure is not affected, and better functional applicability is achieved.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (10)

1. The pressure release valve sound insulation device for the vehicle is characterized by comprising a base, a first sound insulation cover fixedly connected with one end of the base and a second sound insulation cover rotatably connected with the base, wherein one side, away from the first sound insulation cover and the second sound insulation cover, of the base is fixedly connected with a pressure release valve;

the second sound-proof cover is arranged on the inner side of the first sound-proof cover, so that the second sound-proof cover moves in a space formed by the first sound-proof cover and the base under the action of the driving motor.

2. The pressure release valve sound insulation device for a vehicle according to claim 1, wherein the base is a frame structure adapted to the pressure release valve, and buckles are provided around the base so as to mount the base on the pressure release valve through the buckles.

3. The pressure release valve sound insulation device for a vehicle according to claim 2, wherein the base extends out of the fixing portion toward the first sound insulation cover, a mounting hole is formed in the fixing portion, the mounting hole is used for accommodating a driving shaft, one end of the driving shaft is fixedly connected with the second sound insulation cover, the other end of the driving shaft is connected with the driving motor through a gear, when the driving motor receives a rotation signal of the controller, the driving motor drives the driving shaft to rotate according to a preset rule through the gear, so that the second sound insulation cover rotates around the driving shaft, and the driving shaft moves in a space formed by the first sound insulation cover and the base.

4. The pressure release valve sound insulating device for a vehicle according to claim 3, wherein a sound absorbing material is applied to a side of the second sound insulating cover away from the first sound insulating cover.

5. The vehicle pressure release valve sound insulating device according to claim 4, wherein the first sound insulating cover and the second sound insulating cover are each arc-shaped.

6. The vehicle pressure release valve sound insulating device according to claim 5, wherein the distance from any point on the first sound insulating cover to the center point of the drive shaft is the same, and the first sound insulating cover is opened downward.

7. The pressure release valve sound insulating device for a vehicle according to claim 6, wherein one end of the first sound insulating cover is always attached to an inner wall of the second sound insulating cover, and when the pressure release valve sound insulating device for a vehicle is in an incompletely closed state, a gap is provided between the first sound insulating cover and the second sound insulating cover, and the gap gradually increases in the opening direction of the first sound insulating cover.

8. A control method for controlling the pressure release valve sound insulation apparatus for a vehicle according to any one of claims 1 to 7, characterized by comprising:

acquiring vehicle information, wherein the vehicle information at least comprises vehicle door opening and closing information, air conditioner control information and vehicle speed information;

judging whether the vehicle door is closed or not according to the vehicle door opening and closing information;

if yes, judging whether the air conditioner is in an external circulation state according to the air conditioner control information;

if yes, the second sound-proof housing is controlled to be closed according to the preset position according to the vehicle speed information.

9. The method according to claim 8, wherein when the air conditioner is determined to be in the external circulation state, the step of controlling the driving motor to act on the second soundproof cover so that the second soundproof cover is closed at the predetermined position according to the vehicle speed information comprises, before:

controlling the pressure release valve blade to be completely opened, and simultaneously controlling the second sound insulation cover to be completely closed;

acquiring a target rotation position of the second sound-proof housing when the pressure release valve blade rotates under each vehicle speed value;

and establishing a mapping model of each vehicle speed value and the corresponding target rotation position.

10. The method according to claim 9, wherein when it is determined that the air conditioner is in the external circulation state, the step of controlling the driving motor to act on the second soundproof cover so that the second soundproof cover is closed at the preset position according to the vehicle speed information comprises:

acquiring a current vehicle speed value, and inputting the current vehicle speed value into the mapping model to obtain a corresponding rotation position;

and controlling the second sound insulation cover to be closed according to the rotating position.

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