CN114543401A - Air conditioner pipeline anti-vibration structure, air conditioner and air conditioner pipeline anti-resonance method - Google Patents
Air conditioner pipeline anti-vibration structure, air conditioner and air conditioner pipeline anti-resonance method Download PDFInfo
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- CN114543401A CN114543401A CN202210133430.5A CN202210133430A CN114543401A CN 114543401 A CN114543401 A CN 114543401A CN 202210133430 A CN202210133430 A CN 202210133430A CN 114543401 A CN114543401 A CN 114543401A
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- 238000009774 resonance method Methods 0.000 title claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 238000004378 air conditioning Methods 0.000 claims description 76
- 230000008859 change Effects 0.000 claims description 8
- 230000001133 acceleration Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/13—Vibrations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Vibration Prevention Devices (AREA)
- Pipe Accessories (AREA)
Abstract
The invention provides an air conditioner pipeline anti-vibration structure, an air conditioner and an air conditioner pipeline anti-resonance method, wherein the air conditioner pipeline anti-vibration structure comprises the following components: the air conditioner pipeline also comprises at least one sensor for monitoring the real-time vibration frequency of the air conditioner pipeline and at least one pressure adjusting device, and the pressure adjusting device adjusts the constraint of the pressure adjusting device on the air conditioner pipeline according to the real-time vibration frequency fed back by the sensor. The anti-vibration structure of the air conditioner pipeline provided by the invention has the advantages that the real-time vibration frequency of the pipeline is detected, the stress value of the pipeline is fed back to the control unit to judge whether the real-time vibration frequency is close to the vibration fixed frequency of the pipeline or not, the fixed force of the pressure regulating device for pipeline constraint is changed, the vibration fixed frequency of the pipeline is changed on the premise of increasing the weight of the pipeline in a limited way, the pipeline is prevented from being excited by a compressor to resonate, the stress value of the pipeline can be reduced to the maximum allowable stress value corresponding to the minimum service life far away from the system design, the stress of the pipeline is kept in the allowable stress range corresponding to the longer service life, and the fatigue resistance reliability of the pipeline is improved.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to an air conditioner pipeline anti-vibration structure, an air conditioner using the same and an air conditioner pipeline anti-resonance method.
Background
The variable frequency air conditioners appearing on the market all use variable frequency compressors, the working frequency range of the compressors is large, when the compressors run at different vibration frequencies, certain or multiple vibration frequencies are close to or equal to the natural frequency of vibration of an air conditioner pipeline, so that the pipeline is excited to resonate, even the resonance of a shell is caused when the pipeline is serious, the stress born by the pipeline is overlarge, and the problem that the reliability and the safety of the air conditioner are influenced due to the fact that the pipeline is cracked easily occurs.
In the prior art, a counterweight is simply added and adjusted to an air conditioning pipeline so as to change the inherent vibration property of the pipeline, namely the inherent frequency, and avoid inducing resonance. However, the adjustment of the natural frequency by adding the counterweight only has great limitation, and the pipeline is easily subjected to great load, and particularly for small pipelines, the risk of pipeline damage caused by adding the counterweight is extremely high.
Therefore, the existing inverter air conditioner has limitation in avoiding resonance and is easy to cause damage to pipeline load only by adding a counterweight to adjust the natural frequency of vibration of an air conditioner pipeline, and the technical problem to be solved in the field is urgently needed.
Disclosure of Invention
In order to solve the technical problems that the traditional variable frequency air conditioner in the prior art only adjusts the natural frequency of the vibration of the air conditioner pipeline by adding a balance weight so as to avoid limitation of resonance generation and damage to the pipeline load, the invention provides an air conditioner pipeline anti-vibration structure particularly suitable for the variable frequency air conditioner, an air conditioner using the air conditioner pipeline anti-vibration structure and an air conditioner pipeline anti-resonance method.
In order to solve the technical problems, the invention adopts the technical scheme that:
the invention provides an air conditioner pipeline anti-vibration structure, which comprises: the air conditioner pipeline also comprises at least one sensor for monitoring the real-time vibration frequency of the air conditioner pipeline and at least one pressure adjusting device, and the pressure adjusting device adjusts the constraint of the pressure adjusting device on the air conditioner pipeline according to the real-time vibration frequency fed back by the sensor.
Further, the air conditioner pipeline is provided with at least one U bend, the sensor is arranged at the U bend, and the pressure adjusting device wraps the at least one U bend.
Further, the pressure adjusting device adopts an air pressure adjusting device, and comprises:
the pneumatic unit is used for adjusting the air pressure inside the air bag;
the distance between the openings of the U-shaped bend changes along with the air pressure inside the air bag.
Further, the pressure adjusting device further includes:
the buffering support comprises at least two pipe clamps, wherein the two sides of the U-shaped opening are respectively sleeved with the adjacent pipe clamps to correspond to the outer surfaces, the adjacent pipe clamps are connected through the elastic part, and the two ends of the elastic part are respectively and rotatably connected with the adjacent pipe clamps through the ball pairs.
Preferably, the number of the pipe clamps and the number of the elastic members are three, and the three pipe clamps are respectively connected between the adjacent pipe clamps through the three elastic members to form a triangular buffer bracket.
Preferably, the air conditioning duct comprises at least one S-shaped continuous U-bend formed by three bending sections, on which three pipe clamps are arranged, respectively.
Preferably, the pneumatic unit employs a pneumatic pump or a piston.
Preferably, the sensor is an acceleration, stress or displacement sensor.
The invention also provides an air conditioner, which comprises a compressor, an air conditioner pipeline connected with the compressor, and a control unit electrically connected with the pressure regulating device and the sensor, wherein the air conditioner pipeline adopts the anti-vibration structure of the air conditioner pipeline.
The invention also provides an anti-resonance method of the air conditioner pipeline, which applies the air conditioner and comprises the following steps:
monitoring the real-time vibration frequency of an air conditioner pipeline;
judging whether the absolute value of the difference value between the real-time vibration frequency and the natural frequency of the air conditioner pipeline is smaller than or equal to a resonance threshold value or not;
if so, controlling the pressure regulating device to regulate the constraint of the pressure regulating device on the air-conditioning pipeline so as to change the natural frequency of the air-conditioning pipeline until the absolute value of the difference value between the real-time vibration frequency and the natural frequency is greater than the resonance threshold value;
and if not, returning to monitor the real-time vibration frequency of the air conditioner pipeline.
Compared with the prior art, the anti-vibration structure of the air conditioner pipeline, the air conditioner and the anti-resonance method of the air conditioner pipeline, which are provided by the invention, can effectively slow down pipeline vibration caused by fluid in the compressor and the air conditioner pipeline, when the vibration source frequencies are not consistent, the vibration condition (acceleration, pipeline stress value, displacement or noise) of the air-conditioning pipeline is monitored and fed back through the sensor, the control unit judges whether the real-time vibration frequency of the air-conditioning pipeline is close to the natural frequency of the air-conditioning pipeline or not, and controls the fastening force of the pressure regulating device to the air conditioner pipeline when judging that the resonance risk is easy to occur, thereby changing the natural frequency of the vibration of the air-conditioning pipeline, avoiding the resonance excited when the frequency of the vibration source is close to the natural frequency of the vibration of the air-conditioning pipeline, and the anti-vibration structure has small weight, good reliability and reduced gravity load of the air conditioner pipeline on the premise of small weight increase.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic view illustrating an air conditioner pipe anti-vibration structure according to the present invention applied to a compressor pipe of an air conditioner;
FIG. 2 is a schematic view of the air conditioning duct of FIG. 1 without the anti-vibration structure of the air conditioning duct;
fig. 3 is a schematic view of a buffer bracket of an anti-vibration structure of an air conditioner pipeline according to the present invention.
Wherein, in the drawings, the reference numerals are mainly as follows:
1-air conditioning pipeline; 11-U bending; 111-opening; 2-a compressor; 3-a pressure regulating device; 31-balloon cross section; 4-a buffer support; 41-an elastic member; 42-bending section; 5-pipe clamp; 51-ball pair; 6-sensor detection point; 7-a control unit; 8-a pressure transmission pipe; 9-four-way valve.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more clearly apparent, the following will explain the principle and structure of the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, the present invention provides an anti-vibration structure for an air conditioning pipe 1, including: the air-conditioning pipeline 1 further comprises at least one sensor (not shown in the figure) for monitoring the real-time vibration frequency and the stress applied to the air-conditioning pipeline 1, and the sensor can adopt a sensor which can judge the real-time vibration frequency of the air-conditioning pipeline 1 by acceleration, stress, displacement or noise and the like; and the pressure adjusting device 3 adjusts the constraint of the pressure adjusting device 3 on the air conditioning pipeline 1 according to the real-time vibration frequency fed back by the sensor.
Referring to fig. 1-2, in the present embodiment, the air conditioning pipeline 1 is provided with at least one U-bend 11, and the U-bend 11 is formed by bending the air conditioning pipeline 1; the sensor is arranged at the U bend 11, namely the sensor detection point 6 is positioned at the U bend 11; the pressure regulating device encloses at least one U-bend 11. The U-bend 11 is additionally arranged on the air-conditioning pipeline 1, and the U-bend 11 can play the roles of vibration absorption and vibration reduction of vibration of a vibration source (such as a compressor 2) and stress transmission and release for relieving the vibration, so that the pipeline connected with the U-bend 11 is protected, and the whole stress of the air-conditioning pipeline 1 is reduced; because the bent 11 of U of department that bends of air conditioner pipeline 1 belongs to the weak position of the structural attribute of air conditioner pipeline 1, often becomes stress concentration point, and air conditioner pipeline 1 often breaks at the department of bending earlier promptly, so will monitor the real-time vibration frequency of air conditioner pipeline 1 and the sensor of the stress that receives locate on the bent 11 of U that is located air conditioner pipeline 1 department of bending, the monitoring can be realized to less sensor.
As a preferred embodiment, the pressure adjusting device 3 is an air pressure adjusting device including: an air bag (not shown in the figure) wrapping the U-bend 11, and a pneumatic unit for adjusting the air pressure inside the air bag, wherein the pneumatic unit adopts a pneumatic pump or a piston and is communicated with an air source through a pressure transmission pipe 8 as a preferred embodiment; for the openings 111 formed by the pipelines on the two sides of the U-bend 11, the distance between the openings 111 is changed along with the air pressure inside the air bag, namely, the air pressure acting on the U-bend 11 by the air bag changes to cause the deformation of the U-bend 11, so that the distance between the openings 111 is increased or reduced, when the real-time vibration frequency is close to the original natural frequency of the air-conditioning pipeline 1, the structural property of the air-conditioning pipeline 1 at the U-bend 11 is changed through deformation, and then the natural frequency of the vibration of the whole air-conditioning pipeline 1 is changed, the real-time vibration frequency is avoided, and the resonance of the pipeline is avoided; in addition, the stress value of the air-conditioning pipeline 1 can be adjusted to the maximum allowable stress value far away from the minimum designed service life of the corresponding system through the pressure adjusting device 3, so that the pipeline stress is kept in the allowable stress range corresponding to the longer service life, and the fatigue resistance reliability of the air-conditioning pipeline is improved. As a preferred embodiment, the outer wall of the air bag is made of hard damping rubber, so that the air bag has the shock absorption performance, strong weather resistance and high temperature resistance.
Referring to fig. 3 (the rectangle in fig. 3 is the airbag section 31), as a more preferred embodiment, the pressure adjusting device 3 further includes: the buffer support 4 comprises at least two pipe clamps 5, wherein two adjacent pipe clamps 5 are respectively sleeved on two sides of the opening 111 of the U-bend 11 and correspond to the outer surface of the air-conditioning pipeline, the adjacent pipe clamps 5 are connected through an elastic part 41, and two ends of the elastic part 41 are respectively corresponding to the adjacent pipe clamps 5 and rotatably connected through a ball pair 51. As a preferred embodiment, the elastic member 41 is an elastic link; as another embodiment, the elastic member 41 may also be a spring. In a preferred embodiment, the pipe clamp 5 is made of metal or rubber which is not easy to damage the air conditioning pipe 1 when being attached to the air conditioning pipe 1. The elastic part 41 is connected with the pipe clamp 5 through the ball pair 51, so that the pipe clamp 5 and the elastic part 41 can be adjusted relative to the air-conditioning pipeline 1, and when the air-conditioning pipeline 1 is not required to be restrained, the buffer bracket 4 with the connection structure is beneficial to reducing the vibration burden of the pipeline; when the air conditioning pipeline 1 needs to be reliably fixed, the elastic members 41 forming the triangle shape support each other, and more reliable structural force can be obtained.
In a preferred embodiment, three pipe clamps 5 and three elastic members 41 are provided, and the three pipe clamps 5 are connected between the adjacent pipe clamps 5 through the three elastic members 41 to form the triangular buffer bracket 4. In one embodiment (not shown in the figures), two of the three pipe clamps 5 are arranged on two sides of the opening 111 of one U-bend 11 corresponding to the outer surface of the air-conditioning pipeline 1, and the other pipe clamp 5 is arranged on the outer surface of the air-conditioning pipeline 1 at the arc-shaped bend of the U-bend 11; referring to fig. 3, in a preferred embodiment, the air conditioning pipe 1 includes at least one S-shaped continuous U-bend 11 formed by three bending sections 42, and the three pipe clamps 5 are respectively disposed on the three bending sections 42.
As other embodiments, the pressure adjusting device 3 may be a hydraulic pressure adjusting device, the air bag filled with gas to transmit pressure may be replaced by a structure that transmits pressure using oil or other liquid as a filler, and the pneumatic unit may be replaced by a hydraulic power unit.
As a further embodiment (not shown in the figures), the pressure regulating device 3 can also act directly on the air-conditioning circuit 1 in the form of a straight pipe.
The invention also provides an air conditioner which comprises a compressor 2, an air conditioning pipeline 1 connected with the compressor 2, and a four-way valve 9 connected with the air conditioning pipeline 1, wherein the air conditioning pipeline 1 adopts the anti-vibration structure of the air conditioning pipeline 1, the air conditioner also comprises a control unit 7 electrically connected with the pressure regulating device 3 and the sensor, and the control unit 7 preferably adopts a CPU or a singlechip; the control unit 7 can memorize the vibration state of the air conditioner pipeline 1 under the working action of the compressor 2 and the characteristics of the action of the pressure adjusting device 3, the unit running frequency and the like, match the optimal vibration reduction action according to different vibration frequencies and working conditions, and store the optimal vibration reduction action in the control unit 7. The air conditioner is preferably an inverter air conditioner, and the compressor 2 is preferably an inverter compressor.
The invention also provides an anti-resonance method of the air conditioner pipeline 1, which applies the air conditioner and comprises the following steps:
firstly, monitoring the real-time vibration frequency of the air conditioner pipeline 1;
specifically, the acceleration, stress, displacement or noise of the air-conditioning pipeline 1 can be monitored by a sensor arranged at the U-bend 11 or the straight pipe, so that the real-time vibration frequency of the air-conditioning pipeline 1 when the compressor 2 works is judged, and a signal of the sensor is fed back to the control unit 7;
judging whether the absolute value of the difference value between the real-time vibration frequency and the natural frequency of the air-conditioning pipeline 1 is smaller than or equal to a resonance threshold value or not;
specifically, after receiving the sensor feedback signal, the control unit 7 determines, according to a preset resonance threshold, whether the absolute value of the difference between the real-time vibration frequency and the natural frequency of the air-conditioning pipeline 1 is less than or equal to the resonance threshold, so as to determine whether the air-conditioning pipeline 1 is at risk of resonance at the moment;
if so, controlling the pressure regulating device 3 to regulate the constraint of the pressure regulating device on the air-conditioning pipeline 1 so as to change the natural frequency of the air-conditioning pipeline 1 until the absolute value of the difference value between the real-time vibration frequency and the natural frequency is greater than the resonance threshold;
specifically, if the absolute value of the difference between the real-time vibration frequency and the natural frequency of the air-conditioning pipeline 1 is judged to be less than or equal to the resonance threshold, it is determined that the air-conditioning pipeline 1 is at risk of resonance at the moment, the control unit 7 sends a signal to control the pressure adjusting device 3 (which may be an air pressure or hydraulic pressure adjusting device) to adjust the internal pressure of the pressure adjusting device 3, so as to adjust the constraint force of the pressure adjusting device on the U-bend 11 and the buffer bracket 4, i.e. the air-conditioning pipeline 1, at the moment, due to the change of the pressure adjusting device 3 on the pressure, the distance between the openings 111 of the U-bend 11 or the deformation of the air-conditioning pipeline 1 changes along with the pressure inside the pressure adjusting device 3, i.e. the pressure change of the pressure adjusting device 3 acting on the U-bend 11 or the air-conditioning pipeline 1 causes the deformation of the U-bend 11 to change, so as to change the structural properties of the air-conditioning pipeline 1 through deformation when the real-time vibration frequency of the air-conditioning pipeline 1 is close to the original natural frequency of the air-conditioning pipeline 1, and then the natural frequency of the vibration of the whole air conditioner pipeline 1 is changed until the natural frequency is greater than the resonance threshold value, and the real-time vibration frequency is avoided to avoid the occurrence of resonance.
And fourthly, if not, returning to monitor the real-time vibration frequency of the air-conditioning pipeline 1.
Specifically, if the absolute value of the difference between the real-time vibration frequency and the natural frequency of the air-conditioning pipeline 1 is judged to be greater than the resonance threshold, it is determined that the air-conditioning pipeline 1 is not at risk of resonance at the moment, and the first step is returned to continue to monitor the real-time vibration frequency of the air-conditioning pipeline 1 through the sensor.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An air conditioner pipe anti-vibration structure comprising: the air conditioning pipeline is characterized by further comprising at least one sensor for monitoring the real-time vibration frequency of the air conditioning pipeline and at least one pressure adjusting device, wherein the pressure adjusting device adjusts the constraint of the pressure adjusting device on the air conditioning pipeline according to the real-time vibration frequency fed back by the sensor.
2. An anti-vibration structure for air conditioning pipes according to claim 1, wherein the air conditioning pipe is provided with at least one U-bend, the sensor is provided at the U-bend, and the pressure adjusting device wraps the at least one U-bend.
3. An anti-vibration structure for air conditioning ducts as claimed in claim 2, wherein said pressure adjusting means employs an air pressure adjusting means comprising:
the pneumatic unit is used for adjusting the air pressure inside the air bag;
the distance between the openings of the U-shaped bend changes with the air pressure inside the air bag.
4. An air conditioner duct anti-vibration structure as set forth in claim 3, wherein said pressure adjusting means further comprises:
the buffer support comprises at least two pipe clamps, wherein two adjacent pipe clamps are respectively sleeved on the outer surfaces of two sides of the U-shaped opening, the two adjacent pipe clamps are connected through an elastic part, and two ends of the elastic part are respectively and rotatably connected with the adjacent pipe clamps through ball pairs.
5. An anti-vibration structure for air conditioning pipes according to claim 4, wherein there are three pipe clamps and three elastic members, and the three pipe clamps are connected between the adjacent pipe clamps through the three elastic members to form a triangular buffer bracket.
6. An air conditioning duct anti-vibration structure as recited in claim 5, wherein said air conditioning duct includes at least one S-shaped continuous U-bend formed by three bent sections, and three of said pipe clamps are respectively provided on three of said bent sections.
7. Anti-vibration structure for air-conditioning ducts according to claim 3, characterized in that said pneumatic unit employs a pneumatic pump or a piston.
8. Anti-vibration structure for air-conditioning pipes according to claim 1, characterized in that the sensor is an acceleration, stress or displacement sensor.
9. An air conditioner comprising a compressor, an air conditioning pipe connected to the compressor, wherein the air conditioning pipe adopts an air conditioning pipe anti-vibration structure as claimed in any one of claims 1 to 8, and further comprising a control unit electrically connected to the pressure adjusting means and the sensor.
10. An anti-resonance method for an air conditioning pipeline, which is characterized in that the air conditioner according to claim 9 is applied, and comprises the following steps:
monitoring the real-time vibration frequency of an air conditioner pipeline;
judging whether the absolute value of the difference value between the real-time vibration frequency and the natural frequency of the air conditioner pipeline is smaller than or equal to a resonance threshold value or not;
if so, controlling the pressure regulating device to regulate the constraint of the pressure regulating device on the air-conditioning pipeline so as to change the natural frequency of the air-conditioning pipeline until the absolute value of the difference value between the real-time vibration frequency and the natural frequency is greater than the resonance threshold value;
and if not, returning to monitor the real-time vibration frequency of the air conditioner pipeline.
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CN115355639A (en) * | 2022-08-11 | 2022-11-18 | 海信冰箱有限公司 | Refrigerator and vibration adjusting method of compressor |
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