CN108931086B - Compressor vibration control method, device and unit - Google Patents
Compressor vibration control method, device and unit Download PDFInfo
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- CN108931086B CN108931086B CN201810962515.8A CN201810962515A CN108931086B CN 108931086 B CN108931086 B CN 108931086B CN 201810962515 A CN201810962515 A CN 201810962515A CN 108931086 B CN108931086 B CN 108931086B
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- compressor
- temperature
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- damping device
- electromagnetic damping
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- 238000000034 method Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000013016 damping Methods 0.000 claims abstract description 55
- 230000005494 condensation Effects 0.000 claims description 19
- 238000009833 condensation Methods 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 9
- 239000000696 magnetic material Substances 0.000 claims description 9
- 238000004590 computer program Methods 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000005288 electromagnetic effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
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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
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/077—Compressor control units, e.g. terminal boxes, mounted on the compressor casing wall containing for example starter, protection switches or connector contacts
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Compressor (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a control method, a device and a unit for compressor vibration. Wherein the method comprises the following steps: in the operation stage of the compressor, detecting the water outlet temperature of the unit; correspondingly adjusting the energizing current of the electromagnetic damping device according to the water outlet temperature; wherein, electromagnetic damping device sets up between compressor and holding surface. By the method, the self-adaptive starting and vibration reduction during running of the compressor are realized, and the influence on vibration can be adapted to different water temperatures. The influence of the compressor on the pipeline can be well solved, and the service life of the unit is prolonged.
Description
Technical Field
The invention relates to the technical field of units, in particular to a control method and device for vibration of a compressor and a unit.
Background
The existing air-conditioning compressors, particularly compressors with large numbers, often generate large vibration when being started and operated, so that the stress influence of the compressors on pipelines is increased, the reliability of the pipelines is directly influenced, and the service life of the whole machine is also influenced.
The influence of the compressor on the pipeline is generally different when the compressor is started and the influence of the compressor on the pipeline is different when the compressor is running, and generally, the influence of the compressor and the pipeline is equal to each other, and if the vibration of the compressor when the compressor is started is limited, the vibration of the compressor when the compressor is running is increased.
Aiming at the problem that the starting and running of the compressor cannot be simultaneously carried out to reduce vibration in the prior art, an effective solution is not proposed at present.
Disclosure of Invention
The embodiment of the invention provides a control method, a device and a unit for vibration of a compressor, which are used for solving the problem that the starting-up and the running-time vibration reduction of the compressor cannot be considered in the prior art.
In order to solve the technical problem, the invention provides a control method of compressor vibration, wherein the method comprises the following steps: in the operation stage of the compressor, detecting the water outlet temperature of the unit; correspondingly adjusting the energizing current of the electromagnetic damping device according to the water outlet temperature; wherein, electromagnetic damping device sets up between compressor and holding surface.
Further, the method further comprises: and in the starting stage of the compressor, controlling the electromagnetic damping device to be electrified so as to reduce the vibration of the compressor.
Further, detect the outlet water temperature of unit, include: detecting the condensation temperature of the unit; and obtaining the outlet water temperature according to the condensation temperature.
Further, the outlet water temperature is obtained according to the condensation temperature, and is achieved through the following formula: t2=t1-K; wherein T1 is the condensation temperature, T2 is the water outlet temperature, and K is a preset constant.
Further, the energizing current of the electromagnetic damping device is correspondingly adjusted according to the water outlet temperature, and the electromagnetic damping device is realized through the following formula: i=b×t2+a; wherein I is the energizing current, a is a first preset value, b is a second preset value, and different types of compressors correspond to different a and b.
Further, the electromagnetic damping device is arranged at the compressor foot or the compressor cylinder body, and the compressor foot is made of magnetic materials.
Further, the electromagnetic damping device is an electromagnet.
The invention also provides a control device for compressor vibration, which is characterized in that the device comprises: the temperature detection module is used for detecting the water outlet temperature of the unit in the operation stage of the compressor; the adjusting module is used for correspondingly adjusting the energizing current of the electromagnetic damping device according to the water outlet temperature; wherein, electromagnetic damping device sets up between compressor and holding surface.
Further, the apparatus further comprises: and the starting control module is used for controlling the electromagnetic damping device to be electrified in the starting stage of the compressor so as to slow down the vibration of the compressor.
Further, the temperature detection module specifically includes: detecting the condensation temperature of the unit; and obtaining the outlet water temperature according to the condensation temperature.
Further, the temperature detection module obtains the outlet water temperature through the following formula: t2=t1-K; wherein T1 is the condensation temperature, T2 is the water outlet temperature, and K is a preset constant.
Further, the adjustment module adjusts the energizing current of the electromagnetic damping device by the following formula: i=b×t2+a; wherein I is the energizing current, a is a first preset value, b is a second preset value, and different types of compressors correspond to different a and b.
Further, the electromagnetic damping device is arranged at the compressor foot, and the compressor foot is made of magnetic materials; the electromagnetic damping device is an electromagnet.
The invention also provides a unit, wherein the unit comprises: the compressor vibration control device.
The invention also provides a unit, wherein the unit comprises: a compressor and an electromagnetic damping device; the electromagnetic damping device is arranged between the compressor and the supporting surface and is used for damping vibration of the compressor in a starting stage and an operating stage.
Further, the electromagnetic damping device is arranged at the compressor foot or the compressor cylinder body, and the compressor foot is made of magnetic materials.
Further, the electromagnetic damping device is an electromagnet.
The invention also provides a computer device comprising a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the control method of the compressor vibration when executing the program.
The present invention also provides a storage medium containing computer executable instructions for performing a method of controlling compressor vibration as described above when executed by a computer processor.
By applying the technical scheme of the invention, the self-adaptive starting and vibration reduction during running of the compressor are realized, and the influence on vibration can be adapted to different water temperatures. The influence of the compressor on the pipeline can be well solved, and the service life of the unit is prolonged.
Drawings
FIG. 1 is a flow chart of a method of controlling compressor vibration according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the relationship between condensing temperature and outlet water temperature according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the positional relationship of an electromagnet and a compressor according to an embodiment of the present invention;
FIG. 4 is a schematic view of the mounting locations of an electromagnet and a compressor according to an embodiment of the present invention;
FIG. 5 is a flow chart for damping compressor vibration according to an embodiment of the present invention;
fig. 6 is a block diagram of a control apparatus for compressor vibration according to an embodiment of the present invention.
Detailed Description
The invention will be described in further detail with reference to the drawings and the specific embodiments, it being understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the following description, suffixes such as "module", "component", or "unit" for representing elements are used only for facilitating the description of the present invention, and have no specific meaning per se. Thus, "module," "component," or "unit" may be used in combination.
Fig. 1 is a flowchart of a control method of compressor vibration according to an embodiment of the present invention, as shown in fig. 1, the method including the steps of:
step S101, detecting the water outlet temperature of a unit in the operation stage of a compressor;
step S102, correspondingly adjusting the energizing current of the electromagnetic damping device according to the outlet water temperature; wherein, electromagnetic damping device sets up between compressor and holding surface.
Of course, before the compressor is operated, the electromagnetic damping device is controlled to be powered on in the starting stage of the compressor so as to slow down the vibration of the compressor.
By the embodiment, the self-adaptive starting and vibration reduction during running of the compressor can be realized, and the influence on vibration can be realized when different water outlet temperatures are adapted. The influence of the compressor on the pipeline can be well solved, and the service life of the unit is prolonged.
In the starting stage of the compressor, the electromagnetic damping device is electrified and acts on the compressor legs through the magnetic field, so that the vibration of the body when the compressor is started can be limited.
In the operation stage of the compressor, the water outlet temperature of the unit is detected, and the detection can be realized by the following preferred embodiments: detecting the condensing temperature of the unit, and obtaining the water outlet temperature according to the condensing temperature. The outlet water temperature can be calculated, for example, by the following formula: t2=t1-K; wherein T1 is condensation temperature, T2 is outlet water temperature, and K is preset constant.
Fig. 2 is a schematic diagram of a relationship between a condensation temperature and an outlet water temperature according to an embodiment of the present invention, and fig. 2 is an illustration of a 3P hot water unit. Roughly, it is considered that the relationship between the condensing temperature and the outlet water temperature is t2=t1-K, where the condensing temperature is T1 and the outlet water temperature is T2. Table 1 shows the water outlet temperatures and condensing temperatures obtained at different times.
TABLE 1
| Temperature of discharged water | 14.99 | 19.99 | 25 | 29.64 | 35 | 40.01 | 49.99 | 54.5 |
| Condensation temperature | 24 | 27.3 | 30.9 | 34.8 | 40.1 | 44.8 | 54.4 | 59.1 |
The specific value of the difference value K and the specific value of the difference value K between the two can be determined according to experimental data or current requirements, when the compressor runs, the vibration condition of the compressor is related to the water temperature, the higher the water temperature is, the more severe the running condition of the compressor is, specifically, when the water outlet temperature is higher, the higher the tested strain value is, namely, the higher the water temperature is, the compressor is enabled to shake, and the more severe the running of the compressor is.
Therefore, after the water outlet temperature is determined, the current of the electromagnetic damping device is correspondingly adjusted according to the water outlet temperature. Specifically, this can be achieved by the following formula: i=b×t2+a; wherein I is the energizing current, a is a first preset value, b is a second preset value, and different types of compressors correspond to different a and b. The specific values of a and b can be determined according to experimental data or current requirements, and each compressor has different values, so that the compressor can be set and debugged in advance before delivery.
By the mode, the motion of the compressor body can be limited at the moment of starting the compressor, so that the stress is reduced when a pipeline connected with the compressor is started; the electromagnetic damping device can also adjust the electrifying current of the electromagnet according to the change of the outlet water temperature in the operation process of the compressor, the compressor operates abominably, and the limiting force of the electromagnetic damping device on the compressor foot is larger, so that the reliability of a pipeline connected with the compressor can be improved, the service life of the whole machine is prolonged, and the user experience is improved.
It should be noted that, in this embodiment, the electromagnetic damping device is disposed at a compressor foot or a compressor cylinder, and the compressor foot is made of a magnetic material. The electromagnetic shock absorbing device may be an electromagnet. Fig. 3 is a schematic diagram of a positional relationship between an electromagnet and a compressor according to an embodiment of the present invention, and fig. 4 is a schematic diagram of installation positions of the electromagnet and the compressor according to an embodiment of the present invention, and as shown in fig. 3 and 4, the electromagnet may be installed on a compressor foot, or may be installed at a compressor cylinder, regardless of the installation position, as long as damping of vibration of the compressor is achieved.
Fig. 5 is a flow chart for damping vibration of a compressor according to an embodiment of the present invention, as shown in fig. 5, the flow including the steps of:
in step S501, the flow starts.
Step S502, the compressor is in a start-up phase.
Step S503, detecting whether the compressor has current; if yes, step S504 is performed, and if no, step S506 is performed.
In step S504, the electromagnet is powered on.
In step S505, the operation of the compressor is limited, and the vibration of the body of the compressor in the starting stage is reduced by the electromagnetic effect of the electromagnet.
In step S506, the electromagnet is not powered.
Step S507, the compressor is in an operation phase.
Step S508, the water temperature is determined, and then a curve of the corresponding relationship between the water temperature and the electromagnet energizing current amount can be fitted according to the water temperature.
Step S509, the magnitude of the electrifying current of the electromagnet is adjusted according to the temperature of the discharged water, so that vibration of the compressor in the operation stage is relieved through electromagnetic effect. Specifically, determining the current outlet water temperature according to the fitted curve, checking whether the current outlet water temperature is consistent with the current value determined according to the curve, if so, not adjusting the current outlet water temperature, and if not, adjusting the current outlet water temperature to the current value determined according to the curve.
When the technical scheme of the invention is specifically realized, the compressor foot is changed into a magnetic material, meanwhile, the electromagnet is added at the position of the compressor foot, when the compressor of the unit is started, the main board supplies an output signal to the electromagnet, so that the piezoelectric magnet is electrified, and the electric power is obtained for a certain time at the moment of starting the compressor, thus a magnetic field is generated, and the interaction between the electromagnet and the compressor foot is utilized to limit the vibration of the compressor foot, so that the vibration of the body of the compressor can be reduced. In the operation process of the compressor, the change of the water outlet temperature of the unit is detected, so that the power-on current of the electromagnet is adjusted in real time, and the effect of slowing down the vibration of the compressor is achieved.
Corresponding to the control method of the compressor vibration introduced in fig. 1, the present embodiment provides a control device of the compressor vibration, as shown in fig. 6, which includes:
the temperature detection module 10 is used for detecting the water outlet temperature of the unit in the operation stage of the compressor;
the adjusting module 20 is connected to the temperature detecting module 10 and is used for correspondingly adjusting the energizing current of the electromagnetic damping device according to the outlet water temperature; wherein, electromagnetic damping device sets up between compressor and holding surface.
By the embodiment, the self-adaptive starting and vibration reduction during running of the compressor can be realized, and the influence on vibration can be realized when different water outlet temperatures are adapted. The influence of the compressor on the pipeline can be well solved, and the service life of the unit is prolonged.
The apparatus may further include: and the starting control module is used for controlling the electromagnetic damping device to be electrified in the starting stage of the compressor so as to slow down the vibration of the compressor. Based on this, the body vibration to the compressor start-up phase can be damped by the electromagnetic effect of the electromagnetic damping device.
The temperature detection module 10 specifically includes: detecting the condensation temperature of the unit; the water outlet temperature is obtained according to the condensation temperature. The outlet water temperature is obtained by the following formula: t2=t1-K; wherein T1 is condensation temperature, T2 is outlet water temperature, and K is preset constant.
The adjustment module 20 adjusts the energizing current of the electromagnetic damping device by the following formula: i=b×t2+a; wherein I is the energizing current, a is a first preset value, b is a second preset value, and different types of compressors correspond to different a and b.
It should be noted that, in this embodiment, the electromagnetic damping device is disposed at a compressor foot or a compressor cylinder, and the compressor foot is made of a magnetic material. The electromagnetic shock absorbing device may be an electromagnet.
The embodiment also provides a unit which comprises the compressor vibration control device.
The embodiment also provides a unit, which comprises: a compressor and an electromagnetic damping device; the electromagnetic damping device is arranged between the compressor and the supporting surface and is used for damping vibration of the compressor in a starting stage and an operating stage. The foregoing details of how to reduce the vibration of the compressor during the start-up and run-up phases are not described in detail herein. The electromagnetic damping device can be arranged at the compressor foot or the compressor cylinder body, and the compressor foot is made of magnetic materials. In particular, the electromagnetic damping device may be an electromagnet.
The present embodiment also provides a computer device including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the program to implement the method for controlling vibration of the compressor described in the above embodiment.
The present embodiment also provides a storage medium containing computer executable instructions which, when executed by a computer processor, are used to perform a method of controlling compressor vibration as described in the above embodiments.
From the above description, the main core points of the present invention are as follows: an electromagnetic damping device is used for limiting the vibration action of the compressor. Meanwhile, the change of the outlet water temperature is detected to control the electrifying current of the electromagnet and the electromagnetic intensity, so that the influence of the vibration of the compressor on the pipeline can be controlled in real time to be optimized.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a mobile terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
While the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the appended claims, which are to be construed as falling within the scope of the present invention.
Claims (9)
1. A method of controlling vibration of a compressor, the method comprising:
in the starting stage of the compressor, the electromagnetic damping device is controlled to be electrified, and the magnetic field acts on the compressor legs to limit the vibration of the body when the compressor is started and slow down the vibration of the compressor;
in the operation stage of the compressor, detecting the water outlet temperature of the unit;
the energizing current of the electromagnetic damping device is correspondingly adjusted according to the water outlet temperature, and the electromagnetic damping device is realized through the following formula: i=b×t2+a; wherein I is the energizing current, a is a first preset value, b is a second preset value, different types of compressors correspond to different a and b, and T2 is the water outlet temperature;
wherein the electromagnetic damping device is arranged between the compressor and the supporting surface; the electromagnetic damping device is arranged at the compressor foot or the compressor cylinder body, the compressor foot is made of magnetic materials, and the electromagnetic damping device is an electromagnet.
2. The method of claim 1, wherein detecting the outlet water temperature of the unit comprises:
detecting the condensation temperature of the unit;
and obtaining the outlet water temperature according to the condensation temperature.
3. The method according to claim 2, characterized in that the outlet water temperature is obtained from the condensing temperature by the following formula:
t2=t1-K; wherein T1 is the condensation temperature, T2 is the water outlet temperature, and K is a preset constant.
4. A control apparatus for compressor vibration, the apparatus comprising:
the starting control module is used for controlling the electromagnetic damping device to be electrified in the starting stage of the compressor, and limiting the vibration of the body when the compressor is started by acting on the compressor legs through a magnetic field so as to slow down the vibration of the compressor;
the temperature detection module is used for detecting the water outlet temperature of the unit in the operation stage of the compressor;
the adjusting module is used for correspondingly adjusting the energizing current of the electromagnetic damping device according to the water outlet temperature; wherein the electromagnetic damping device is arranged between the compressor and the supporting surface;
the adjusting module adjusts the energizing current of the electromagnetic damping device according to the following formula:
i=b×t2+a; wherein I is the energizing current, a is a first preset value, b is a second preset value, different types of compressors correspond to different a and b, and T2 is the water outlet temperature;
the electromagnetic damping device is arranged at the compressor foot, and the compressor foot is made of magnetic materials; the electromagnetic damping device is an electromagnet.
5. The apparatus of claim 4, wherein the device comprises a plurality of sensors,
the temperature detection module specifically comprises: detecting the condensation temperature of the unit; and obtaining the outlet water temperature according to the condensation temperature.
6. The apparatus of claim 5, wherein the temperature detection module obtains the outlet water temperature by the formula: t2=t1-K; wherein T1 is the condensation temperature, T2 is the water outlet temperature, and K is a preset constant.
7. A unit, the unit comprising: a control device for compressor vibration according to any one of claims 4 to 6.
8. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements a method for controlling the vibration of a compressor according to any one of claims 1 to 3 when executing the program.
9. A storage medium containing computer executable instructions for performing the control method of compressor vibration of any one of claims 1 to 3 when executed by a computer processor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810962515.8A CN108931086B (en) | 2018-08-22 | 2018-08-22 | Compressor vibration control method, device and unit |
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| CN108931086B true CN108931086B (en) | 2024-03-08 |
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| EP4056859A1 (en) * | 2021-03-12 | 2022-09-14 | Sulzer Management AG | A method of operating a pipework aggregate, an assembly for attenuation of vibration of a pump unit coupled to a pipework aggregate and a pump unit |
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| JP2001248682A (en) * | 2000-03-07 | 2001-09-14 | Sanyo Electric Co Ltd | Repetitive motion device and refrigerator |
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|---|---|---|---|---|
| JPH06129487A (en) * | 1992-10-13 | 1994-05-10 | Hitachi Ltd | Spring constant variable type damping device |
| JPH08270725A (en) * | 1995-03-28 | 1996-10-15 | Agency Of Ind Science & Technol | Repulsion type magnetic damper, repulsion type magnetic actuator and repulsion type magnetic vibration proof base |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001248682A (en) * | 2000-03-07 | 2001-09-14 | Sanyo Electric Co Ltd | Repetitive motion device and refrigerator |
| CN2835698Y (en) * | 2005-11-03 | 2006-11-08 | 苏州昆拓冷机有限公司 | Magnetic levitation vibration damping device for compressor of control cubicle type air conditioner |
| CN203549294U (en) * | 2013-11-21 | 2014-04-16 | 北京中鼎恒盛气体设备有限公司 | Damping-type machine base of diaphragm compressor |
| CN105952616A (en) * | 2016-06-17 | 2016-09-21 | 福州怡辉电力设备有限公司 | Shock absorption device of compressor |
| CN106494182A (en) * | 2016-10-17 | 2017-03-15 | 珠海格力电器股份有限公司 | Damping assembly, on-board air conditioner and car and the oscillation damping method based on electromagnetic technique |
| CN209147534U (en) * | 2018-08-22 | 2019-07-23 | 珠海格力电器股份有限公司 | A kind of control device and unit of vibration of compressor |
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