CN-122014567-A - Compressor vibration damper, compressor and vibration damping control method thereof

CN122014567ACN 122014567 ACN122014567 ACN 122014567ACN-122014567-A

Abstract

The invention discloses a compressor vibration damper, a compressor and a vibration damping control method thereof. The compressor vibration damper comprises a vibration damper module, a heat conducting frame and a heating module. The vibration damping module comprises a base and an SMA material body arranged on the base, wherein the base is used for being fixed to the installation main body, and the SMA material body is used for being connected with a footing of the compressor. One end of the heat conducting frame is connected with the SMA material body, and the other end of the heat conducting frame is connected to the surface of the shell of the compressor so as to transfer heat generated by the operation of the compressor to the SMA material body. The heating module is connected with the SMA material body and used for heating the SMA material body to change the phase change state. The device utilizes the heat conduction frame to recycle the compressor waste heat to the SMA material body, makes the SMA material body be in the sensitive standby area of performance for a long time, cooperates the active compensation of heating module, ensures the quick response of the SMA material body under different operating modes, realizes high-efficient damping, can show the reduction energy consumption, increase of service life.

Inventors

LI XIN
XIONG SHUO
GE XIAOTING
WEN JIAZHI

Assignees

珠海格力电器股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260409

Claims (14)

1. A vibration-damping device for a compressor, characterized by comprising the following steps: the vibration reduction module comprises a base and an SMA material body arranged on the base, wherein the base is used for being fixed on the installation main body, and the SMA material body is used for being connected with a footing of the compressor; A heat conducting frame, one end of which is connected with the SMA material body, the other end of which is connected with the surface of the shell of the compressor, and the heat conducting frame is used for transferring heat generated by the operation of the compressor to the SMA material body; And the heating module is connected with the SMA material body and used for heating the SMA material body to change the phase change state of the SMA material body.
2. The vibration damper of claim 1, wherein the thermally conductive frame comprises a heat collecting ring for sleeving to a shell surface of the compressor and a heat transfer rod having one end connected to the heat collecting ring and the other end connected to the SMA material body.
3. The vibration damping device of a compressor according to claim 2, wherein a plurality of vibration damping modules are provided, the number of the heat transfer rods is the same as the number of the vibration damping modules, one end of each of the heat transfer rods is connected at equal intervals in the circumferential direction of the heat collecting ring, and the other end of each of the heat transfer rods is connected to the SMA material body corresponding to the vibration damping module, respectively.
4. A compressor vibration damper according to claim 3, wherein all of said vibration damper modules are equally spaced in the circumferential direction.
5. The vibration damping device according to any one of claims 1 to 4, wherein the vibration damping module further comprises an elastic material body provided on top of the SMA material body, and an adapter provided on the elastic material body, the adapter being adapted to be fixedly connected to a footing of the compressor.
6. The vibration damping device according to any one of claims 1 to 4, wherein the heating module comprises a driving circuit assembly and a heating wire, the heating wire is uniformly disposed on the base and is in thermal contact with the SMA material, and the driving circuit assembly is connected to the heating wire for driving the heating wire to generate heat.
7. A compressor vibration damping device according to any one of claims 1 to 4, wherein a temperature sensor is provided on the SMA material body for detecting the temperature of the SMA material body.
8. The compressor vibration damping device according to any one of claims 1-4, wherein the SMA material body is a nickel titanium alloy.
9. A compressor comprising a compressor vibration damper according to any one of claims 1 to 8, wherein the bottom of the compressor is provided with a footing, said footing being connected to the SMA body of the compressor vibration damper.
10. A compressor vibration damping control method applied to the compressor of claim 9, the method comprising: Acquiring the current running frequency of the compressor and the current environment temperature; Determining a target heating power according to the current operating frequency and the current ambient temperature; And controlling the heating module to heat at the target heating power.
11. The method of claim 10, wherein said obtaining a target heating power from said current operating frequency and said current ambient temperature comprises: judging whether the current operating frequency is in a preset frequency range or not; When the current operating frequency is in the preset frequency range, judging whether the current environment temperature is smaller than a preset low-temperature threshold value or not; If the current ambient temperature is smaller than the preset low-temperature threshold value, calculating the target heating power according to a first preset algorithm; If the current ambient temperature is greater than or equal to the preset low-temperature threshold, setting the target heating power to zero; And when the current operating frequency is not in the preset frequency range, calculating the target heating power according to a second preset algorithm.
12. The method of claim 11, wherein calculating the target heating power according to a first preset algorithm comprises: The target heating power is calculated according to a formula P 0 =a 0 ×（T 1 -T）+k 0 , where P 0 is the target heating power, a 0 is a power coefficient, T 1 is the preset low temperature threshold, T is the current ambient temperature, and k 0 is a constant.
13. The method of claim 11, wherein said calculating said target heating power according to a second preset algorithm when said current operating frequency is not within said preset frequency range comprises: If the current operating frequency is smaller than the minimum boundary value of the preset frequency range, calculating the target heating power according to a formula P 1 =a 1 ×（n 1 -n）+k 1 , wherein P 1 is the target heating power, a 1 is a power coefficient, n 1 is the minimum boundary value, n is the current operating frequency, and k 1 is a constant; If the current operating frequency is greater than the maximum boundary value of the preset frequency range, the target heating power is calculated according to a formula P 2 =a 1 ×（n-n 2 ）+k 2 , where P 2 is the target heating power, a 1 is a power coefficient, n 2 is the maximum boundary value, n is the current operating frequency, and k 2 is a constant.
14. The method according to claim 10, wherein the method further comprises: If the earthquake early warning information is received, the heating module is controlled to heat with the maximum heating power; and judging whether the earthquake early-warning information exists or not, and returning to the step of acquiring the current running frequency of the compressor and acquiring the current environment temperature if the earthquake early-warning information does not exist.

Description

Compressor vibration damper, compressor and vibration damping control method thereof Technical Field The invention relates to the technical field of compressor vibration reduction devices, in particular to a compressor vibration reduction device, a compressor and a vibration reduction control method thereof. Background In the running process of the air conditioner, the compressor is used as a core power component, and the stable running of the compressor has important influence on the whole performance, the service life and the noise control. At present, vibration reduction of an air conditioner compressor mainly depends on a rubber pad for supporting and vibration reduction treatment. However, the conventional rubber vibration damping scheme has the technical defects that the vibration damping performance of a rubber material is obviously limited by environmental factors, ageing, hardening or softening are easy to occur under severe environments such as high temperature and high humidity, strong ultraviolet rays, salt spray corrosion or extreme temperature difference, the elasticity is reduced, the vibration damping performance is obviously reduced, the service life is greatly shortened, meanwhile, a rubber pad has a nonlinear stiffness characteristic, resonance is easy to be caused when the working frequency of the compressor is close to the natural frequency of the compressor, vibration and noise are amplified, and stable and effective vibration damping is difficult to be provided particularly under low-frequency or high-frequency operation conditions of the compressor. In order to overcome the above problems, the prior art attempts to introduce Shape Memory Alloys (SMA) as intelligent vibration damping materials. SMA has excellent extreme environment resistance, fatigue resistance, recyclability and other characteristics, and is theoretically suitable for long-term vibration reduction requirements of air conditioner compressors. However, the existing SMA vibration damping scheme still has the defects that the phase change capability of the SMA element is passivated in a low-temperature state, the response is delayed, the SMA element cannot be quickly switched to a high-rigidity and high-damping state, and the vibration damping scheme is difficult to adapt to vibration damping requirements of the compressor under different working conditions (such as low-frequency and high-frequency operation), so that the vibration damping effect is unstable, and reliable vibration damping protection cannot be provided for the compressor. Therefore, there is a need for a compressor vibration damper that can accommodate extreme environments and different operating conditions, responds quickly, and is stable in performance. Disclosure of Invention The embodiment of the invention provides a compressor vibration damper, a compressor and a vibration damping control method thereof, and aims to solve the problem that the existing SMA vibration damping scheme cannot adapt to different working conditions. In a first aspect, the invention provides a vibration damper for a compressor, which comprises a vibration damper module and a heating module, wherein the vibration damper module comprises a base and an SMA material body arranged on the base, the base is used for being fixed on a mounting main body, the SMA material body is used for being connected with a base leg of the compressor, one end of the heat conducting frame is connected with the SMA material body, the other end of the heat conducting frame is used for being connected to the surface of a shell of the compressor, the heat conducting frame is used for transmitting heat generated by the operation of the compressor to the SMA material body, and the heating module is connected with the SMA material body and used for heating the SMA material body to change the phase change state of the SMA material body. Further, the heat conduction frame comprises a heat collecting ring and a heat transfer rod, wherein the heat collecting ring is used for being sleeved on the surface of the shell of the compressor, one end of the heat transfer rod is connected with the heat collecting ring, and the other end of the heat transfer rod is connected with the SMA material body. Further, the vibration reduction modules are provided with a plurality of heat transfer rods, the number of the heat transfer rods is the same as that of the vibration reduction modules, one ends of the heat transfer rods are connected at equal intervals in the circumferential direction of the heat collecting ring, and the other ends of the heat transfer rods are respectively connected with the SMA material bodies corresponding to the vibration reduction modules. Further, all the vibration reduction modules are arranged at equal intervals in the circumferential direction. Further, the vibration reduction module further comprises an elastic material body arranged at the top of the SMA material body and an adapter arrange