CN201396860Y - Cooling and warming type frequency-change air conditioner with damping device - Google Patents
Cooling and warming type frequency-change air conditioner with damping device Download PDFInfo
- Publication number
- CN201396860Y CN201396860Y CN2009201545217U CN200920154521U CN201396860Y CN 201396860 Y CN201396860 Y CN 201396860Y CN 2009201545217 U CN2009201545217 U CN 2009201545217U CN 200920154521 U CN200920154521 U CN 200920154521U CN 201396860 Y CN201396860 Y CN 201396860Y
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- China
- Prior art keywords
- expansion valve
- pipe
- air return
- thermostatic expansion
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000013016 damping Methods 0.000 title claims abstract description 14
- 238000001816 cooling Methods 0.000 title claims abstract description 9
- 238000010792 warming Methods 0.000 title abstract 3
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000035939 shock Effects 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000003507 refrigerant Substances 0.000 claims description 6
- 230000002457 bidirectional effect Effects 0.000 abstract description 11
- 239000002826 coolant Substances 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 9
- 230000003584 silencer Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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- Air Conditioning Control Device (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model provides a cooling and warming type frequency-change air conditioner with a damping device comprises an indoor machine and an outdoor machine connected through a coolant connecting pipe. The outdoor machine is provided with a compressor, a four-way electronmagnetic change valve, a bidirectional thermostatic expansion valve, an outdoor heat exchanger, a fan system and an outdoor controller. The lower two ends of the bidirectional thermostatic expansion valve are respectively communicated with the indoor heat exchanger and the outdoor heat exchanger. A pressure transmission capillary pipe is connected between the lower part of the bidirectional thermostatic expansion valve and an air return pipe. A temperature-sensing capillary pipe is connected between the upper part of the bidirectional thermostatic expansion valve and the air return pipe. The pressure transmission capillary pipe and the temperature-sensing capillary pipe are respectively fixed on the air return pipevia a clamping collar. Fixing bandages are respectively wound between the pressure transmission capillary pipe, the clamping collar and the air return pipe and between the temperature-sensing capillary pipe, the clamping collar and the air return pipe. The cooling and warming type frequency-change air conditioner with the damping device is provided with the damping device on a pipe connected withthe external temperature-sensing bidirectional thermostatic expansion valve as a throttling element so as to reduce the shock at the capillary pipe connecting part between the bidirectional thermostatic expansion valve and the air return pipe.
Description
Technical Field
The utility model relates to a cold and warm type variable frequency air conditioner, when two-way thermal expansion valve regarded as throttling element promptly, adopt damping device to reduce the vibrations of relevant system pipeline, belong to air conditioner and refrigeration engineering field.
Background
The existing variable frequency air conditioner sold in domestic and foreign markets generally adopts a capillary tube or an electronic expansion valve as a throttling element. When the variable frequency air conditioner adopts the capillary tube as the throttling element, the variable frequency air conditioner can adapt to the rated refrigeration range, but the variable frequency air conditioner can limit the exertion of the energy efficiency advantage of the variable frequency air conditioner when the variable frequency air conditioner operates under other working conditions and different frequencies and the flow change is larger relative to the rated point. When the electronic expansion valve is applied to a household air conditioner, a plurality of temperature sensors and a controller are generally adopted to feed back signals to control the valve body, but no pressure signal exists, the evaporation temperature under a certain working condition of a certain frequency can only be approximately determined, so that a certain error exists in the determination of the superheat degree, in addition, the control strategy of the flow of the electronic expansion valve under the full-frequency-domain full-working condition is complex, and the development period is relatively long.
Further, as described in the prior patent application having patent No. ZL200520014045.0 entitled heat pump type room air conditioner, an internal temperature sensing type bidirectional thermal expansion valve is used as a throttling element. The indoor heat exchanger is connected with the outdoor heat exchanger through the four-way electromagnetic directional valve, and the indoor heat exchanger is connected with the outdoor heat exchanger through the four-way electromagnetic directional valve.
Although the above patent is said, the amount of liquid feed to the heat exchanger can be automatically adjusted according to the load on the evaporator (i.e., the superheat of the return air). But the vibration from the compressor directly affects the welding stability of the capillary tube connection between the two-way thermostatic expansion valve and the air return pipeline, and the welding point is easy to break to cause the leakage of the refrigerant.
SUMMERY OF THE UTILITY MODEL
Take damping device's cold and warm type variable frequency air conditioner is provided with damping device to the not enough of prior art existence and on connecting the pipeline as throttling element's two-way thermal expansion valve of outer temperature sensing formula to reduce the pipeline vibrations.
The utility model discloses a design aim at reduces the vibrations influence when coming from the compressor operation, and the welding point between two-way thermal expansion valve and the system pipeline is difficult for the fracture, avoids the refrigerant to take place to leak, guarantees the accuracy that outer temperature sensing formula two-way thermal expansion valve detected or perception return air pipe pressure, temperature data simultaneously.
In order to achieve the above design purpose, the cooling and heating type variable frequency air conditioner with the damping device mainly comprises:
the indoor unit is provided with an indoor heat exchanger, a fan system and an indoor controller, and the outdoor unit is provided with a compressor, a four-way electromagnetic reversing valve, a two-way thermal expansion valve, an outdoor heat exchanger, a fan system and an outdoor controller.
And the two ends of the lower part of the two-way thermostatic expansion valve are respectively communicated with the indoor heat exchanger and the outdoor heat exchanger. The difference from the prior art is that,
a pressure transfer capillary tube is connected between the lower part of the two-way thermostatic expansion valve and the air return pipe, and a temperature sensing capillary tube is connected between the upper part of the two-way thermostatic expansion valve and the air return pipe.
The pressure transmission capillary and the temperature sensing capillary are respectively fixed on the air return pipe through a clamping hoop.
And fixing bands are respectively wound among the pressure transmission capillary tube, the clamping hoop and the air return pipe and among the temperature sensing capillary tube, the clamping hoop and the air return pipe.
According to the basic characteristics, the pipe diameters of the pressure transmission capillary pipe and the temperature sensing capillary pipe are small, so that the vibration generated when the compressor operates is prevented from generating adverse effects on welding points between the two-way thermal expansion valve and the pressure transmission capillary pipe and between the two-way thermal expansion valve and the temperature sensing capillary pipe, the vibration reduction device can effectively reduce the resonance amplitude among a plurality of parts, and reduce the stress damage of the vibration on the welding points.
The more optimized scheme is that the clamping hoop is made of flexible materials such as rubber or plastic, energy generated by vibration can be further absorbed, and the damping effect is more prominent.
In order to further enhance the connection performance between the pressure transfer capillary and the air return pipe, a bent pipe is connected between the pipe end of the pressure transfer capillary and the air return pipe, and the pipe diameter of the bent pipe is larger than that of the pressure transfer capillary.
The tube end of the pressure transmission capillary tube is sleeved with a thick tube structure such as a bent tube, so that the aim of supplementing and blocking vibration can be fulfilled.
In a further refinement, the bent pipe is bent to 90 °.
As described above, the utility model discloses take damping device's cold and warm type inverter air conditioner has following advantage:
1. the damping device is arranged on the pipeline of the external temperature sensing type bidirectional thermal expansion valve serving as the throttling element, so that the pipeline vibration can be effectively reduced, the welding point between the bidirectional thermal expansion valve and the system pipeline is not easy to break, and the leakage of the refrigerant is avoided.
2. The accuracy of detecting or sensing the pressure and temperature data of the return pipe by the external temperature sensing type bidirectional thermal expansion valve is ensured, and the energy efficiency ratio of the variable frequency air conditioner is optimized.
Drawings
The invention will now be further explained and illustrated with reference to the following figures.
FIG. 1 is a system schematic diagram of the cooling and heating type inverter air conditioner;
fig. 2 is a schematic view showing a partial structure of an outdoor unit;
as shown in fig. 1 and 2, a compressor 1, a four-way electromagnetic directional valve 2, an indoor heat exchanger 3, a two-way thermostatic expansion valve 4, an outdoor heat exchanger 5, a liquid storage tank 6, a gas return pipe 7, a pressure transfer capillary tube 8, a temperature sensing capillary tube 9, a stop valve 10, a stop valve 11, a silencer 12, a clamping hoop 20, and an elbow 30.
Detailed Description
Embodiment 1, as shown in fig. 1 and 2, this embodiment provides a cooling and heating type inverter air conditioner, which includes an indoor unit and an outdoor unit connected by a refrigerant connection pipe. Wherein,
in the indoor unit, an indoor heat exchanger 3, a fan system, and an indoor controller are provided.
In the outdoor unit, a compressor 1, a four-way electromagnetic directional valve 2, a two-way thermostatic expansion valve 4, an outdoor heat exchanger 5, a fan system, and an outdoor controller are provided.
The two ends of the lower part of the two-way thermostatic expansion valve 4 are respectively communicated with the indoor heat exchanger 3 and the outdoor heat exchanger 5. A pressure transfer capillary tube 8 is connected between the lower part of the two-way thermostatic expansion valve 4 and the air return tube 7. A temperature sensing capillary tube 9 is connected between the upper part of the two-way thermostatic expansion valve 4 and the air return pipe 7.
A stop valve 10 is communicated between the two-way thermostatic expansion valve 4 and the indoor heat exchanger 3, a silencer 12 is communicated between the two-way thermostatic expansion valve 4 and the stop valve 10, and the pipe diameter of the silencer 12 is larger than the size of a pipeline connected with the two ends of the silencer.
As shown in fig. 2, the pressure transfer capillary tube 8 is connected to the muffler 7 by a clamp 20, and the temperature sensing capillary tube 9 is connected to the muffler 7 by another clamp 20.
The clamp 20 has arc-shaped clamp grooves for allowing the muffler 7, the pressure-transmitting capillary 8 and the temperature-sensing capillary 9 to pass through the bodies thereof, thereby elastically clamping the pressure-transmitting capillary 8 and the temperature-sensing capillary 9 to the side portions of the muffler 7, respectively.
The clamping band 20 may be made of a flexible material such as rubber or plastic, so as to further enhance the shock absorption effect of absorbing the shock wave energy.
And fixing bands are respectively wound among the pressure transmission capillary tube 8, the clamping hoop 20 and the air return pipe 7, and among the temperature sensing capillary tube 9, the clamping hoop 20 and the air return pipe 7.
An elbow 30 bent to 90 degrees is connected between the pipe end of the pressure transmission capillary 8 and the muffler 7, and the pipe diameter of the elbow 30 is larger than that of the pressure transmission capillary 8.
The vibration generated by the compressor during operation is absorbed and blocked by the damping device, and the vibration is generated at the capillary tube welding position between the two-way thermostatic expansion valve and the air return pipe.
The system comprises a temperature sensing capillary tube, a bidirectional thermal expansion valve, a pressure transmission capillary tube, a temperature sensing capillary tube and a temperature control capillary tube. And welding points between the air return pipe and the pressure transmission capillary and between the air return pipe and the temperature sensing capillary.
The stability of the welding points is improved, and the vibration of the compressor can not cause the fracture of the parts to cause the loss of the refrigerant.
Claims (3)
1. A cooling and heating type variable frequency air conditioner with a damping device comprises an indoor unit and an outdoor unit which are connected through a refrigerant connecting pipe, wherein an indoor heat exchanger (3), a fan system and an indoor controller are arranged in the indoor unit, and a compressor (1), a four-way electromagnetic reversing valve (2), a two-way thermal expansion valve (4), an outdoor heat exchanger (5), the fan system and an outdoor controller are arranged in the outdoor unit;
the two-way thermostatic expansion valve (4) is characterized in that the two ends of the lower part of the two-way thermostatic expansion valve are respectively communicated with the indoor heat exchanger (3) and the outdoor heat exchanger (5):
a pressure transmission capillary tube (8) is connected between the lower part of the two-way thermostatic expansion valve (4) and the air return tube (7), and a temperature sensing capillary tube (9) is connected between the upper part of the two-way thermostatic expansion valve (4) and the air return tube (7);
the pressure transmission capillary tube (8) and the temperature sensing capillary tube (9) are respectively fixed on the air return pipe (7) through a clamping hoop (20);
fixing bands are respectively wound among the pressure transmission capillary tube (8), the clamping hoop (20) and the air return pipe (7) and among the temperature sensing capillary tube (9), the clamping hoop (20) and the air return pipe (7).
2. A cooling and heating type inverter air conditioner with a shock-absorbing device according to claim 1, characterized in that: an elbow (30) is connected between the end of the pressure transfer capillary (8) and the air return pipe (7), and the pipe diameter of the elbow (30) is larger than that of the pressure transfer capillary (8).
3. A cooling-heating type inverter air conditioner with a shock absorbing device according to claim 2, characterized in that: the bent pipe (30) is bent to 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201545217U CN201396860Y (en) | 2009-05-14 | 2009-05-14 | Cooling and warming type frequency-change air conditioner with damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201545217U CN201396860Y (en) | 2009-05-14 | 2009-05-14 | Cooling and warming type frequency-change air conditioner with damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201396860Y true CN201396860Y (en) | 2010-02-03 |
Family
ID=41619377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201545217U Expired - Fee Related CN201396860Y (en) | 2009-05-14 | 2009-05-14 | Cooling and warming type frequency-change air conditioner with damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201396860Y (en) |
-
2009
- 2009-05-14 CN CN2009201545217U patent/CN201396860Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20160514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |