CN210363267U - Air conditioner pipeline mechanism and car - Google Patents
Air conditioner pipeline mechanism and car Download PDFInfo
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- CN210363267U CN210363267U CN201920839662.6U CN201920839662U CN210363267U CN 210363267 U CN210363267 U CN 210363267U CN 201920839662 U CN201920839662 U CN 201920839662U CN 210363267 U CN210363267 U CN 210363267U
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Abstract
The utility model belongs to the technical field of the automotive technology and specifically relates to an air conditioner pipeline mechanism and car is related to there is the poor technical problem of noise reduction effect in alleviating current vehicle air conditioner pipeline structure. The air conditioner pipeline mechanism comprises a pressure stabilizing pipeline and a connecting pipeline; the two ends of the pressure stabilizing pipeline are both connected with connecting pipelines, one end of the pressure stabilizing pipeline is communicated with the compressor pipeline through the connecting pipelines, and the other end of the pressure stabilizing pipeline is communicated with the in-vehicle pipeline through the connecting pipelines; the inner diameter of the pressure stabilizing pipeline is larger than that of the connecting pipeline. When fluid flows through the pressure stabilizing pipeline, because the inner diameter of the pressure stabilizing pipeline is enlarged, the impedance of the wall of the pressure stabilizing pipeline to the fluid is changed, part of fluctuation capacity can be reflected back to the original pipeline, and the other part of pressure fluctuation wave can be continuously transmitted in the pressure stabilizing pipeline. The utility model discloses can effectively reduce pressure pulsation and strike, and then reduce the transmission to compressor work noise, vibration to reduce vibration and the noise that transmits in the car, can improve and take the travelling comfort.
Description
Technical Field
The utility model belongs to the technical field of the automotive technology and specifically relates to an air conditioner pipeline mechanism and car is related to.
Background
As vehicles become more popular and customers have a higher desire for vehicle quality, companies have been more and more advanced in NVH performance, and customer demands for noise generated from accessories have become more and more strict, and although engine noise and wind noise have been gradually controlled, noise-generating components still exist on vehicles. Therefore, finding the principle of noise generation and finding the path that generates or contributes primarily to noise transmission to resolve the noise becomes one of the urgent and important jobs for the host plant.
In the existing vehicle structure, air conditioner high-pressure and low-pressure pipelines are all of equal diameter, pressure pulsation of fluid caused by working of a compressor cannot be eliminated on a path, and the pressure pulsation can transmit noise, so that noise of a vehicle is increased.
Therefore, the existing automobile air conditioner pipeline structure has the technical problem of poor noise reduction effect.
SUMMERY OF THE UTILITY MODEL
The utility model provides a in view of above-mentioned problem, its aim at provides an air conditioner pipeline mechanism and car to there is the poor technical problem of noise reduction effect in alleviating current vehicle air conditioner pipeline structure.
For realizing the purpose of the utility model, the following technical proposal is adopted:
in a first aspect, an embodiment of the present invention provides an air conditioner pipeline mechanism, which includes a pressure stabilizing pipeline and a connecting pipeline; the two ends of the pressure stabilizing pipeline are both connected with the connecting pipelines, one end of the pressure stabilizing pipeline is communicated with the compressor pipeline through the connecting pipelines, and the other end of the pressure stabilizing pipeline is communicated with the in-vehicle pipeline through the connecting pipelines; the inner diameter of the pressure stabilizing pipeline is larger than that of the connecting pipeline.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, wherein the pressure stabilizing pipeline includes a first connection portion, a second connection portion, and a third connection portion that are sequentially connected; one end of the first connecting part, which is far away from the second connecting part, and one end of the third connecting part, which is far away from the second connecting part, are respectively communicated with the connecting pipeline; the inner diameter of the first connecting portion and the inner diameter of the third connecting portion are both smaller than the inner diameter of the second connecting portion.
With reference to the first aspect and the first possible implementation manner of the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein a length of the second connection portion is set to be a quarter of a period length of a pressure pulsation wave of fluid in the connection pipeline.
With reference to the first aspect and the first possible implementation manner of the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, wherein one end of the second connection portion is communicated with the first connection portion through a first transition portion, and an inner diameter of the first transition portion gradually increases along a direction from the first connection portion to the second connection portion; the other end of the second connecting portion is communicated with the third connecting portion through a second transition portion, and the inner diameter of the second transition portion gradually increases along the direction from the third connecting portion to the second connecting portion.
With reference to the first aspect and the third possible implementation manner of the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, wherein the first transition portion and the first connection portion, and the second transition portion and the third connection portion are all fixedly connected.
In combination with the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, wherein one end of the pressure stabilizing pipeline, which is away from the compressor pipeline, is communicated with the connection pipeline through a hose.
With reference to the first aspect and its fifth possible implementation manner, embodiments of the present invention provide a sixth possible implementation manner of the first aspect, wherein the hose is made of a rubber material.
In combination with the first aspect, embodiments of the present invention provide a seventh possible implementation manner of the first aspect, wherein the voltage regulator tube is made of an aluminum material.
In combination with the first aspect, an embodiment of the present invention provides an eighth possible implementation manner of the first aspect, wherein the connection pipeline is fixedly connected to the compressor pipeline.
In a second aspect, an embodiment of the present invention provides an automobile, where the automobile includes a compressor pipeline and an in-automobile pipeline, and further includes the air-conditioning pipeline mechanism of the first aspect; the compressor pipeline is communicated with one connecting pipeline in the air conditioner pipeline mechanism, and the in-vehicle pipeline is communicated with the other connecting pipeline in the air conditioner pipeline mechanism.
Technical scheme more than combining, the utility model discloses following beneficial effect has:
the utility model provides an air-conditioning pipeline mechanism which comprises a pressure stabilizing pipeline and a connecting pipeline; the two ends of the pressure stabilizing pipeline are both connected with connecting pipelines, one end of the pressure stabilizing pipeline is communicated with the compressor pipeline through the connecting pipelines, and the other end of the pressure stabilizing pipeline is communicated with the in-vehicle pipeline through the connecting pipelines; the inner diameter of the pressure stabilizing pipeline is larger than that of the connecting pipeline.
The noise reduction principle of the air conditioner pipeline mechanism is as follows:
when the fluid moves in the pipeline with the changed cross-sectional area, the transmission loss calculation formula is as follows:
wherein S is1And S2Are all the inner diameter of the pipeline, and S1>S2。
The purpose of the air conditioner pipeline mechanism is to eliminate the pulsation impact of the refrigerant fluid generated when the compressor piston works during the work of the compressor. The pulse impact includes two types, namely, when the air conditioner is just opened, the fluid has no regular flushing impact when pressure balance is built in the whole pipeline, and the pulse impact is regular pressure pulse impact generated by a pump in a compressor to the fluid when the air conditioner normally works. The noise reduction principle is that fluid flows in a pipeline, when the pipe diameter changes, the resistance of the pipe wall to the fluid changes, a part of fluctuation capacity is reflected to the original pipeline, the other part of pressure fluctuation wave continues to be transmitted in the pipeline with the new section, and therefore the pressure fluctuation wave capacity is weakened.
In the air-conditioning pipeline mechanism, the inner diameter of the pressure stabilizing pipeline is larger than that of the connecting pipeline, when the fluid flows through the pressure stabilizing pipeline, the inner diameter of the pressure stabilizing pipeline is increased, the impedance of the pipe wall of the pressure stabilizing pipeline to the fluid is changed, part of fluctuation capacity is reflected back to the original pipeline, and the other part of pressure fluctuation wave is continuously transmitted in the pressure stabilizing pipeline. The utility model discloses can effectively reduce pressure pulsation and strike, and then reduce the transmission to compressor work noise, vibration to reduce vibration and the noise that transmits in the car, can improve and take the travelling comfort.
The utility model discloses the car that the second aspect provided has the same beneficial effect with the air conditioner pipeline mechanism that the first aspect provided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an air conditioner pipeline mechanism provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a pressure stabilizing pipeline in an air conditioner pipeline mechanism provided by the embodiment of the present invention.
Icon: 100-pressure stabilizing pipeline; 110 — a first connection; 120-a second connection; 130-a third connection; 140-a first transition; 150-a second transition; 200-connecting lines; 300-compressor line; 400-flexible pipe.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Following according to the utility model provides an overall structure of air conditioner pipeline mechanism and car, to
Examples 1 to 2 are described.
In the existing vehicle structure, pressure pulsation exists in fluid in an air conditioning pipeline, and the pressure pulsation can transmit noise. The high-low pressure pipelines of the air conditioner are all of equal diameter, and the pressure pulsation of fluid caused by the operation of the compressor cannot be eliminated on the path.
Meanwhile, in order to eliminate pressure pulsation, most of the existing air conditioner high-low pressure pipes adopt rubber hoses, and partial pressure pulsation and vibration transmission are eliminated by means of elasticity of rubber and bending and walking directions of the rubber hoses, but the mode is poor in effect of eliminating the pressure pulsation.
In addition, in the prior art, in order to eliminate the transmission of noise vibration in the vehicle caused by the pressure pulsation of the air conditioning pipeline, a vibration isolation structure is added at each mounting point of the pipeline and the vehicle body, vibration isolation materials are used for isolating the mounting point of the expansion valve on the air conditioning pipeline at the front metal plate, and the vibration isolation structure is also used for eliminating the influence on the passengers in the vehicle by the matching part of the evaporator in the passenger compartment and the air conditioning box. However, this method of blocking the transmission of noise is costly and ineffective.
Example 1
In contrast, the present embodiment provides an air conditioning duct mechanism.
Referring to fig. 1, the air conditioning pipeline mechanism includes a pressure stabilizing pipeline 100 and a connecting pipeline 200; both ends of the pressure stabilizing pipeline 100 are connected with a connecting pipeline 200, one end of the pressure stabilizing pipeline 100 is communicated with a compressor pipeline 300 through the connecting pipeline 200, and the other end of the pressure stabilizing pipeline 100 is communicated with an in-vehicle pipeline through the connecting pipeline 200; the inner diameter of the surge line 100 is larger than the inner diameter of the connecting line 200.
The noise reduction principle of the air conditioner pipeline mechanism is as follows:
when the fluid moves in the pipeline with the changed cross-sectional area, the transmission loss calculation formula is as follows:
wherein S is1And S2Are all the inner diameter of the pipeline, and S1>S2。
The purpose of the air conditioner pipeline mechanism is to eliminate the pulsation impact of the refrigerant fluid generated when the compressor piston works during the work of the compressor. The pulse impact includes two types, namely, when the air conditioner is just opened, the fluid has no regular flushing impact when pressure balance is built in the whole pipeline, and the pulse impact is regular pressure pulse impact generated by a pump in a compressor to the fluid when the air conditioner normally works. The noise reduction principle is that fluid flows in a pipeline, when the pipe diameter changes, the resistance of the pipe wall to the fluid changes, a part of fluctuation capacity is reflected to the original pipeline, the other part of pressure fluctuation wave continues to be transmitted in the pipeline with the new section, and therefore the pressure fluctuation wave capacity is weakened.
In the air-conditioning pipeline mechanism, the inner diameter of the pressure stabilizing pipeline 100 is larger than the inner diameter of the connecting pipeline 200, when the fluid flows through the pressure stabilizing pipeline 100, because the inner diameter of the pressure stabilizing pipeline 100 is increased, the impedance of the wall of the pressure stabilizing pipeline 100 to the fluid is changed, a part of fluctuation capacity can be reflected back to the original pipeline, and the other part of pressure fluctuation wave can be continuously transmitted in the pressure stabilizing pipeline 100. The utility model discloses can effectively reduce pressure pulsation and strike, and then reduce the transmission to compressor work noise, vibration to reduce vibration and the noise that transmits in the car, can improve and take the travelling comfort.
Specifically, referring to fig. 2, the pressure-stabilizing pipe 100 includes a first connecting portion 110, a second connecting portion 120, and a third connecting portion 130, which are sequentially connected; one end of the first connecting part 110, which is far away from the second connecting part 120, and one end of the third connecting part 130, which is far away from the second connecting part 120, are respectively communicated with the connecting pipeline 200; the inner diameters of the first and third connection parts 110 and 130 are smaller than the inner diameter of the second connection part 120. In order to sufficiently remove the pressure pulsation energy, the inner diameter of the second connection portion 120 is set to be 5-6 times the inner diameter of the connection pipe 200, and the difference between the inner diameters of the second connection portion 120 and the connection pipe 200 is used to provide a contribution amount for removing the pressure pulsation energy. Meanwhile, the length of the second connection portion 120 may be set to correspond to the working period of the piston pump when the compressor works, and the length of the second connection portion 120 may be set to be one fourth of the period length of the pressure pulsation wave, for example, the length of the second connection portion 120 may be set to be 50-70mm, and the main period energy of the pressure pulsation wave is reduced through a wave crest cancellation effect, so that the transmission of the working noise and vibration of the compressor is effectively reduced.
Further, one end of the second connection portion 120 communicates with the first connection portion 110 through a first transition portion 140, and the inner diameter of the first transition portion 140 gradually increases along a direction from the first connection portion 110 to the second connection portion 120; the other end of the second connection portion 120 communicates with the third connection portion 130 through a second transition portion 150, and the inner diameter of the second transition portion 150 gradually increases in a direction from the third connection portion 130 to the second connection portion 120. The flow spaces of the fluid at the first transition portion 140 and the fluid at the second transition portion 150 are both circular truncated cone-shaped, and the circular truncated cone-shaped transition can avoid the structures such as right angles and acute angles caused by abrupt changes of the inner diameters between the second connecting portion 120 and the first connecting portion 110 and/or the third connecting portion 130, so that the problems of damage or fracture and the like caused by stress concentration at the connecting portion between the second connecting portion 120 and the first connecting portion 110 and/or the third connecting portion 130 are avoided.
In order to ensure that the first connection portion 110 and the third connection portion 130 are connected with the first transition portion 140 and the second transition portion 150, respectively, the first transition portion 140 and the first connection portion 110, and the second transition portion 150 and the third connection portion 130 may be connected in a welded manner.
In addition, in order to further eliminate the pressure pulsation, a hose 400 (see fig. 1 in detail) is connected to an end of the pressure stabilizing pipeline 100 away from the compressor pipeline 300, and an end of the hose 400 away from the pressure stabilizing pipeline 100 is communicated with the in-vehicle pipeline through a connecting pipeline 200. The hose 400 has elasticity and can be bent, and when pressure pulse impact is transmitted in the hose 400, the hose 400 can absorb part of pressure pulse wave energy and vibration by means of the elasticity of the hose 400, so that the pressure pulse and the vibration are weakened. At the same time, the pressure pulse wave is attenuated at the bend while being transmitted in the bent hose 400. In addition, the structure inside the vehicle is complicated, and the hose 400 can be bent to avoid other parts inside the vehicle, so as to reduce the occupied space of the air-conditioning pipeline mechanism which is originally provided in the market.
Further, the hose 400 may be made of a rubber material.
The pressure stabilizing pipeline 100 can be made of aluminum materials, the pressure stabilizing pipeline 100 can be made of aluminum tubes with the wall thickness of 1mm, the aluminum density is low, the weight is light, and the light weight of vehicle parts and the whole vehicle is favorably realized.
In order to ensure a firm connection between the connection pipe 200 and the compressor pipe 300, the connection pipe 200 and the compressor pipe 300 may be welded. In order to ensure the connection between the connecting pipeline 200 and the in-vehicle pipeline is firm, the connecting pipeline 200 and the in-vehicle pipeline may be connected in a welding manner.
Example 2
The embodiment provides an automobile.
The automobile comprises a compressor pipeline 300, an in-automobile pipeline and an air conditioner pipeline mechanism in embodiment 1; the compressor pipeline 300 is communicated with one of the connection pipelines 200 of the air-conditioning pipeline mechanism, and the in-vehicle pipeline is communicated with the other of the connection pipelines 200 of the air-conditioning pipeline mechanism.
The noise reduction principle of the air conditioner pipeline mechanism in the automobile is as follows:
when the fluid moves in the pipeline with the changed cross-sectional area, the transmission loss calculation formula is as follows:
wherein S is1And S2Are all the inner diameter of the pipeline, and S1>S2。
The purpose of the air conditioner pipeline mechanism is to eliminate the pulsation impact of the refrigerant fluid generated when the compressor piston works during the work of the compressor. The pulse impact includes two types, namely, when the air conditioner is just opened, the fluid has no regular flushing impact when pressure balance is built in the whole pipeline, and the pulse impact is regular pressure pulse impact generated by a pump in a compressor to the fluid when the air conditioner normally works. The noise reduction principle is that fluid flows in a pipeline, when the pipe diameter changes, the resistance of the pipe wall to the fluid changes, a part of fluctuation capacity is reflected to the original pipeline, the other part of pressure fluctuation wave continues to be transmitted in the pipeline with the new section, and therefore the pressure fluctuation wave capacity is weakened.
In the air-conditioning pipeline mechanism, the inner diameter of the pressure stabilizing pipeline 100 is larger than the inner diameter of the connecting pipeline 200, when the fluid flows through the pressure stabilizing pipeline 100, because the inner diameter of the pressure stabilizing pipeline 100 is increased, the impedance of the wall of the pressure stabilizing pipeline 100 to the fluid is changed, a part of fluctuation capacity can be reflected back to the original pipeline, and the other part of pressure fluctuation wave can be continuously transmitted in the pressure stabilizing pipeline 100. The utility model discloses can effectively reduce pressure pulsation and strike, and then reduce the transmission to compressor work noise, vibration to reduce vibration and the noise that transmits in the car, can improve and take the travelling comfort.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. An air conditioner pipeline mechanism is characterized by comprising a pressure stabilizing pipeline and a connecting pipeline;
the two ends of the pressure stabilizing pipeline are both connected with the connecting pipelines, one end of the pressure stabilizing pipeline is communicated with the compressor pipeline through the connecting pipelines, and the other end of the pressure stabilizing pipeline is communicated with the in-vehicle pipeline through the connecting pipelines;
the inner diameter of the pressure stabilizing pipeline is larger than that of the connecting pipeline.
2. The air-conditioning pipeline mechanism according to claim 1, characterized in that the pressure stabilizing pipeline comprises a first connecting part, a second connecting part and a third connecting part which are communicated in sequence;
one end of the first connecting part, which is far away from the second connecting part, and one end of the third connecting part, which is far away from the second connecting part, are respectively communicated with the connecting pipeline;
the inner diameter of the first connecting portion and the inner diameter of the third connecting portion are both smaller than the inner diameter of the second connecting portion.
3. An air conditioning pipe mechanism according to claim 2, wherein the length of the second connecting portion is set to one quarter of the cycle length of a pressure pulsation wave of fluid in the connecting pipe.
4. An air conditioner pipeline mechanism according to claim 2, wherein one end of the second connecting portion is communicated with the first connecting portion through a first transition portion, and the inner diameter of the first transition portion is gradually increased along a direction from the first connecting portion to the second connecting portion;
the other end of the second connecting portion is communicated with the third connecting portion through a second transition portion, and the inner diameter of the second transition portion gradually increases along the direction from the third connecting portion to the second connecting portion.
5. An air conditioning ducting mechanism as claimed in claim 4, wherein the first transition portion and the first connecting portion, and the second transition portion and the third connecting portion are all fixedly connected.
6. An air conditioner pipeline mechanism according to claim 1, characterized in that one end of the pressure stabilizing pipeline, which is far away from the compressor pipeline, is communicated with the connecting pipeline through a hose.
7. An air conditioning ducting mechanism as claimed in claim 6 wherein the hose is made of a rubber material.
8. An air conditioning ducting mechanism as claimed in claim 1 wherein the stabilivolt is formed from aluminium.
9. An air conditioner pipeline mechanism according to claim 1, wherein the connecting pipeline is fixedly connected with the compressor pipeline.
10. An automobile comprising a compressor circuit and an in-vehicle circuit, further comprising an air conditioning circuit mechanism as claimed in any one of claims 1 to 9;
the compressor pipeline is communicated with one connecting pipeline in the air conditioner pipeline mechanism, and the in-vehicle pipeline is communicated with the other connecting pipeline in the air conditioner pipeline mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920839662.6U CN210363267U (en) | 2019-06-04 | 2019-06-04 | Air conditioner pipeline mechanism and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920839662.6U CN210363267U (en) | 2019-06-04 | 2019-06-04 | Air conditioner pipeline mechanism and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210363267U true CN210363267U (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920839662.6U Active CN210363267U (en) | 2019-06-04 | 2019-06-04 | Air conditioner pipeline mechanism and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210363267U (en) |
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2019
- 2019-06-04 CN CN201920839662.6U patent/CN210363267U/en active Active
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