CN203404037U - Compressor - Google Patents
Compressor Download PDFInfo
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- CN203404037U CN203404037U CN201320429700.3U CN201320429700U CN203404037U CN 203404037 U CN203404037 U CN 203404037U CN 201320429700 U CN201320429700 U CN 201320429700U CN 203404037 U CN203404037 U CN 203404037U
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- motor
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Abstract
The utility model discloses a compressor which comprises a body and a brushless direct-current motor. The brushless direct-current motor is arranged in the body and comprises a motor rotor and a motor stator, wherein the motor rotor is a ferrite magnet rotor, and the motor stator and the motor rotor are coaxially arranged. According to the compressor, due to the fact that the motor rotor of the compressor is the ferrite magnet rotor, the motor has the higher rated power and natural coercive force, the brushless direct-current motor is higher in energy efficiency relative to an induction motor, the efficiency and the reliability of the compressor are ensured, and meanwhile the cost of the compressor can not be increased.
Description
Technical field
The utility model relates to technical field of refrigeration equipment, more specifically, relates to a kind of compressor.
Background technique
Since the meeting of capital of a country, cut down the paces of greenhouse effect gas and accelerate, concerning air-conditioning equipment, wish the product of the low GWP of exploitation, high efficiency, high reliability.Although R410A refrigeration agent is to ozonosphere without destruction, its GWP value is up to 2100 left and right, also higher than the GWP value of R22.Although R290 refrigeration agent is to ozonosphere without destruction, and its GWP value is low, and it has high flammable.R32 refrigeration agent, as a kind of environmental protection refrigerant of alternative HCFC working medium, has higher COP, and lower GWP value, thereby enjoys great popularity.According to the physical property of R32 refrigerant, under identical temperature conditions, the pressure of R32 refrigeration agent is only slightly high than the pressure of R410A refrigeration agent, thereby chiller plant does not need to do larger change.But due to R32 physical property, the high 20-30 ℃ of the relative R410A refrigeration agent of effluent air temp after compressor compresses when R32 refrigeration agent is used.If delivery temperature height is not suppressed, not only the volumetric efficiency of compressor reduces, and affects compressor reliability.The operation of compressor long term high temperature, motor insulation material is easily deteriorated, and compressor lubricant oil is apt to deteriorate, affects compressor reliability.Therefore, be necessary to be further improved.
Model utility content
The utility model is intended to one of solve the problems of the technologies described above at least to a certain extent.
For this reason, an object of the present utility model is to propose the compressor that a kind of efficiency is high, cost is low.
According to compressor of the present utility model, comprising: body; And brshless DC motor, described brshless DC motor is located in described body, and described brshless DC motor comprises: rotor, described rotor is ferrite magnet rotor; And motor stator, described motor stator and described rotor coaxially arrange.
According to compressor of the present utility model, the rotor of compressor adopts ferrite magnet rotor, make motor there is higher rated power and natural coercivity, and brshless DC motor is higher with respect to induction motor efficiency, when guaranteeing compressor efficiency and reliability, compressor cost can not rise.
In addition, according to compressor of the present utility model, can also there is following additional technical characteristics:
According to an embodiment of the present utility model, also comprise: liquid-storage container, described liquid-storage container is connected with described body, and described liquid-storage container is provided with air inlet port; Exhaust port, described exhaust port is located on described body; And power access end, described power access end is located on described body and contiguous described exhaust port.
Alternatively, also comprise: detection device, described detection device is located on described exhaust port; And control gear, described control gear is connected with described power access end with described detection device respectively.
According to an embodiment of the present utility model, described detection device is temperature detection sensor.
Alternatively, described detection device is located on the periphery wall of described exhaust port.
Further, described power input is fixed on the top of described body.
According to an embodiment of the present utility model, also comprise: the first heat-exchanger rig, described the first heat-exchanger rig is connected with described exhaust port; The second heat-exchanger rig, described the second heat-exchanger rig is connected with described air inlet port; And solenoid valve, described solenoid valve is connected with the second heat-exchanger rig with described the first heat-exchanger rig respectively.
Alternatively, described solenoid valve is four-way valve.
According to an embodiment of the present utility model, described brshless DC motor is variable-frequency motor.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination obviously and is easily understood becoming embodiment's description, wherein:
Fig. 1 is the internal structure schematic diagram according to the utility model embodiment's compressor;
Fig. 2 is the external structure schematic diagram according to the utility model embodiment's compressor;
Fig. 3 is according to the structural representation of the refrigeration cycle of the utility model embodiment's compressor;
Fig. 4 is refrigerator oil viscosity with temperature change curve;
Fig. 5 is the rotating speed of motor and the plotted curve of electric efficiency;
Reference character:
10: body; 11: exhaust port; 12: air inlet port; 13: power access end;
20: brshless DC motor; 21: rotor; 22: motor stator;
30: liquid-storage container;
40: detection device;
50: control gear;
60: the first heat-exchanger rigs;
70: the second heat-exchanger rigs;
80: solenoid valve.
Embodiment
Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment who is described with reference to the drawings, be exemplary, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " on ", orientation or the position relationship of the indication such as D score, " vertically ", " level ", " top ", " end " " interior ", " outward " be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific orientation, construct and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " a plurality of " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
Below in conjunction with accompanying drawing, specifically describe according to the utility model embodiment's compressor.
As shown in Figure 1 to Figure 3, according to the utility model embodiment's compressor, comprise: body 10 and brshless DC motor 20.Particularly, brshless DC motor 20 is located in body 10, and brshless DC motor 20 comprises: rotor 21 and motor stator 22.Wherein, rotor 21 is ferrite magnet rotor, and motor stator 22 coaxially arranges with rotor 21.
Thus, according to the utility model embodiment's compressor, the rotor 21 of compressor adopts ferrite magnet rotor, make motor there is higher rated power and natural coercivity, and brshless DC motor 20 is higher with respect to induction motor efficiency, when guaranteeing compressor efficiency and reliability, compressor cost can not rise.
It should be noted that, adopt the brshless DC motor 20 of ferrite magnet rotor to there is 0.6 kilowatt or higher rated power, and the natural coercivity of brshless DC motor 20 is at 0.3MA/m
-1above or higher.Brshless DC motor 20 materials are B level or E class F insulating material F, have guaranteed that compressor holistic cost can not rise.
In addition, according to the utility model embodiment's compressors refrigerator oil, be synthetic POE oil, refrigeration agent used is R32 refrigeration agent.Compressor refrigerator oil is synthetic POE oil, and in the time of its 40 ℃, kinetic viscosity is at 32～96mm
2between/s, and refrigerator oil to have added P system, S system or cl be one or more in additive, while having guaranteed that R32 refrigeration agent adopts, refrigerator oil has good wear resistance, thereby has improved the reliability of compressor.
The body 10 of compressor and brshless DC motor 20 and refrigerator oil be in same chamber, and discharge after taking away the heat of brshless DC motor 20 at the flow through position of mounted motor in compressor of the refrigeration agent that compressor pump is discharged.Motor winding temperature when surveying R32 refrigeration agent under air-conditioning ASH operating mode, the dynamo-electric machine winding temperature of constant speed is up to more than 130 ℃.Under this hot environment, the volumetric efficiency of compressor reduces more serious, and insulating material, refrigerator oil long term high temperature move may be deteriorated, affects compressor reliability.
Because refrigeration agent after compressor compresses becomes high temperature, high-pressure refrigerant, the refrigeration agent brshless DC motor 20 of flowing through is heated through brshless DC motor 20, and it is higher that temperature will become.High temperature, high-pressure refrigerant and refrigerator oil, in same chamber, cause refrigerator oil temperature to raise.During 40 ℃ of the utility model compressors refrigerator oils, kinetic viscosity is at 32～96mm
2between/s, even viscosity declines when high temperature, refrigerator oil still has higher viscosity, meets the demand of compressor, and Fig. 4 represents refrigerator oil viscosity with temperature change curve.Reliability while using in order to improve R32 refrigeration agent, it is additive that refrigerator oil has added P system, S system or cl.The employing of additive, the reliability of compressor while having promoted the employing of R32 refrigeration agent.But additive high temperature is easy and water generation chemical reaction, causes refrigerator oil deteriorated, produces acid, affects the reliability of compressor.Therefore need to control carrying out the temperature of compressor.
According to an embodiment of the present utility model, compressor also comprises: liquid-storage container 30, exhaust port 11 and power access end 13.Wherein, liquid-storage container 30 is connected with body 10, and liquid-storage container 30 is provided with air inlet port 12.Exhaust port 11 is located on body 10, and power access end 13 is located on body 10 and contiguous exhaust port one 1.
Further, compressor also comprises: detection device 40 and control gear 50.Detection device 40 is located on exhaust port 11, and control gear 50 is connected with power access end 13 with detection device 40 respectively.Thus, detection device 40 can detect the related data of exhaust port 11, and the related data detecting is changed into current value offer control gear 50, control gear 50 offers compressor brshless DC motor 20 by this current value, control gear 50 regulates electric current and the rotating speed that offers brshless DC motor 20 by FREQUENCY CONTROL, thus the heat that regulates compressor to produce.
Alternatively, according to an embodiment of the present utility model, detection device 40 is temperature detection sensor.Thus, under bad working environments, brshless DC motor 20 winding temperature ratios spue temperature (being the temperature of exhaust port 11) height less than 20 ℃.Therefore can be according to detecting compressor temperature precognition brshless DC motor 20 temperature that spue, by temperature detection sensor, detect the compressor temperature T d that spues, can predict motor winding temperature not higher than Td+20 ℃.Owing to thering is the brshless DC motor 20 of ferrite magnet rotor, can control its electric current by control gear 50, by the change of electric current, realize the change of winding temperature.Therefore, setting brshless DC motor 20 temperature upper limits is T, and the receptible temperature upper limit of temperature detection sensor is T-20 ℃.When temperature detection sensor detects Td > during T-20 ℃, temperature inversion is become to current value feed back control system 50, control gear 50 receives the electric current that offers brshless DC motor 20 after the signal of temperature detection sensors.Control gear 50 reduces electric current and the rotating speed that offers brshless DC motor 20 by FREQUENCY CONTROL.The heat that brshless DC motor 20 produces like this will reduce, and temperature reduces, and guarantees that refrigerant temperature is unlikely to too high, improves the reliability of compressor.
According to an embodiment of the present utility model, as shown in Figure 2, detection device 40 is located on the periphery wall of exhaust port 11.Thus, when detection device 40 is temperature detection sensor, can detect more accurately the temperature of the exhaust port 11 of compressor.
Further, power input 13 is fixed on the top of body 10.Thus, the power input 13 of this structure is convenient to be connected cooperation with control gear 50.
In order to realize the refrigeration cycle of compressor, according to an embodiment of the present utility model, as shown in Figure 3, compressor also comprises: the first heat-exchanger rig 60, the second heat-exchanger rig 70 and solenoid valve 80.Particularly, the first heat-exchanger rig 60 is connected with exhaust port 11, and the second heat-exchanger rig 70 is connected with air inlet port 12, and solenoid valve 80 is connected with the second heat-exchanger rig 70 with the first heat-exchanger rig 60 respectively.Alternatively, solenoid valve 80 is four-way valve.Thus, each parts connect successively, can realize the refrigeration cycle of compressor.Wherein, the refrigeration principle of compressor and cyclic process to those skilled in the art, are appreciated that and easily realize, therefore no longer describing in detail.
According to an embodiment of the present utility model, brshless DC motor 20 is variable-frequency motor.Because variable-frequency motor adopts relative constant-seed motor, compressor operating efficiency golf calorific value is relatively little, is equivalent to like this reduce compressor temperature, has further guaranteed the reliability of compressor.Fig. 5 shows the rotating speed of motor and the plotted curve of electric efficiency, wherein, a represents the rotating speed of traditional induction motor and the curved line relation of electric efficiency, and b represents according to the utility model embodiment's the rotating speed of brshless DC motor 20 and the curved line relation of electric efficiency.As seen from Figure 5, according to the utility model embodiment's brshless DC motor 20, under same rotational speed, than traditional induction motor, there is higher electric efficiency.
According to other formations of the utility model embodiment's compressor and operation, be all known for those of ordinary skills, be not described in detail here.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiments or example.
Although illustrated and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment in the situation that not departing from principle of the present utility model and aim in scope of the present utility model, modification, replacement and modification.
Claims (9)
1. a compressor, is characterized in that, comprising:
Body; With
Brshless DC motor, described brshless DC motor is located in described body, and described brshless DC motor comprises:
Rotor, described rotor is ferrite magnet rotor; And
Motor stator, described motor stator and described rotor coaxially arrange.
2. compressor according to claim 1, is characterized in that, also comprises:
Liquid-storage container, described liquid-storage container is connected with described body, and described liquid-storage container is provided with air inlet port;
Exhaust port, described exhaust port is located on described body; With
Power access end, described power access end is located on described body and contiguous described exhaust port.
3. compressor according to claim 2, is characterized in that, also comprises:
Detection device, described detection device is located on described exhaust port; With
Control gear, described control gear is connected with described power access end with described detection device respectively.
4. compressor according to claim 3, is characterized in that, described detection device is temperature detection sensor.
5. compressor according to claim 4, is characterized in that, described detection device is located on the periphery wall of described exhaust port.
6. compressor according to claim 3, is characterized in that, described power input is fixed on the top of described body.
7. compressor according to claim 2, is characterized in that, also comprises:
The first heat-exchanger rig, described the first heat-exchanger rig is connected with described exhaust port;
The second heat-exchanger rig, described the second heat-exchanger rig is connected with described air inlet port; With
Solenoid valve, described solenoid valve is connected with the second heat-exchanger rig with described the first heat-exchanger rig respectively.
8. compressor according to claim 7, is characterized in that, described solenoid valve is four-way valve.
9. according to the compressor described in any one in claim 1-8, it is characterized in that, described brshless DC motor is variable-frequency motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320429700.3U CN203404037U (en) | 2013-07-18 | 2013-07-18 | Compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320429700.3U CN203404037U (en) | 2013-07-18 | 2013-07-18 | Compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404037U true CN203404037U (en) | 2014-01-22 |
Family
ID=49939977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320429700.3U Expired - Lifetime CN203404037U (en) | 2013-07-18 | 2013-07-18 | Compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203404037U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832395A (en) * | 2015-04-20 | 2015-08-12 | 侨健新能源科技（苏州）有限公司 | High-efficiency energy-saving compressor |
| CN106089714A (en) * | 2016-08-25 | 2016-11-09 | 深圳沃海森科技有限公司 | Plasma frequency converting air-conditioner compressor |
-
2013
- 2013-07-18 CN CN201320429700.3U patent/CN203404037U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832395A (en) * | 2015-04-20 | 2015-08-12 | 侨健新能源科技（苏州）有限公司 | High-efficiency energy-saving compressor |
| CN106089714A (en) * | 2016-08-25 | 2016-11-09 | 深圳沃海森科技有限公司 | Plasma frequency converting air-conditioner compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |
|
| CX01 | Expiry of patent term |