CN203614404U - Vertical rotary compressor - Google Patents
Vertical rotary compressor Download PDFInfo
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- CN203614404U CN203614404U CN201320614973.5U CN201320614973U CN203614404U CN 203614404 U CN203614404 U CN 203614404U CN 201320614973 U CN201320614973 U CN 201320614973U CN 203614404 U CN203614404 U CN 203614404U
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- compressing mechanism
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- eccentric shaft
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Abstract
The utility model discloses a vertical rotary compressor. The vertical rotary compressor comprises a casing, a motor and a compressing mechanism, wherein a cavity is formed in the casing; the motor is arranged in the casing; the compressing mechanism is arranged below the motor in the casing and comprises a cylinder provided with a compressing cavity as well as an eccentric shaft, and the upper end of the eccentric shaft is connected with the motor; the motor and the compressing mechanism divide the cavity of the casing into upper motor space located above the motor, lower motor space located between the motor and the compressing mechanism as well as sealed space located in a position of an auxiliary bearing and a muffler of the compressing mechanism sequentially from top to bottom; and a shaft through hole used for communicating the sealed space and the upper space is formed in the eccentric shaft. The vertical rotary compressor can prevent overheat of the motor effectively.
Description
Technical field
The utility model relates to technical field of refrigeration equipment, particularly relates to a kind of vertical rotating compressor.
Background technique
Rotary compressor, the compression efficiency of bringing due to the direct suction of refrigerant is improved and the reason such as the miniaturization of the lubricated and vome of shell of slip component, and the interior pressure that makes seal casinghousing is high pressure, and eccentric shaft is Vertical direction, adopts vertical technology.
To press in housing on high-tension side vertical rotating compressor, during due to operation, discharge a large amount of oil, so can produce the problem that oil mass declines in housing.In addition, the motor coil of running overload is overheated, the oily degree of superheat of underrun declines also can bring compressor fault.
Model utility content
The utility model is intended to one of solve the technical problem at least to a certain extent.
For this reason, an object of the present utility model is to propose a kind of vertical rotating compressor that can prevent motor overheating.
According to vertical rotating compressor of the present utility model, comprising: housing, has chamber in described housing; Motor, described motor is located in described housing; And compressing mechanism, described compressing mechanism is located at below described motor in described housing, and described compressing mechanism comprises cylinder and the eccentric shaft with compression chamber, and the upper end of described eccentric shaft is connected with described motor; Wherein, described motor and described compressing mechanism are divided into the chamber of described housing successively from top to bottom the motor upper space on described motor, the motor lower portion space between described motor and described compressing mechanism and are positioned at the seal space at the supplementary bearing of described compressing mechanism and the baffler place of described compressing mechanism, have the shaft through-hole that is communicated with described seal space and described upper space on described eccentric shaft.
According to vertical rotating compressor of the present utility model, by the shaft through-hole that is communicated with the upper space in compression chamber and housing is set on eccentric shaft, can pump to the upper space above motor by having mixed oily refrigerant in compression chamber, cooling so that motor is carried out, can effectively prevent motor overheating.
In addition, can also there is following additional technical characteristics according to embodiment's described in the utility model vertical rotating compressor:
According to an example of the present utility model, described vertical rotating compressor also comprises outlet pipe, on the stator of described motor, have the exhaust passage that lower end is communicated with described motor lower portion space and upper end closed, described outlet pipe is located at the side of described housing and is communicated with described exhaust passage.
According to an example of the present utility model, flow out to the refrigerant in described motor lower portion space, the passage between periphery and the described housing of the stator of the described motor of process, arrives described outlet pipe.
According to an example of the present utility model, between the periphery and described housing internal diameter of the stator of described motor, configure in periphery or the described housing inner radius of the stator of described motor the device that reduces the interval area to described motor upper space and described motor lower portion space opening.
According to an example of the present utility model, the oil that has possessed the bottom storage that makes described housing flows out to the lubricating fitting of the described eccentric shaft in described motor lower portion space through the periphery of described eccentric shaft.
According to an example of the present utility model, described motor is for concentrating rolling variable-frequency motor or distribution rolling constant-seed 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
Described and/or additional aspect of the present utility model and advantage accompanying drawing below combination is understood becoming embodiment's description obviously and easily, wherein:
Fig. 1 is according to the schematic diagram of an embodiment's of the utility model vertical rotating compressor;
Fig. 2 is the local enlarged diagram of Fig. 1;
Fig. 3 is according to the schematic diagram of another embodiment's of the utility model vertical rotating compressor.
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.Be exemplary below by the embodiment who is described with reference to the drawings, 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 " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure 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 " multiple " 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 also electrical connection; 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 described term in the utility model.
In the utility model, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is less than Second Characteristic.
Describe in detail according to vertical rotating compressor of the present utility model below with reference to accompanying drawing.
As shown in Figure 1 to Figure 3, according to vertical rotating compressor of the present utility model, comprising: housing 2, motor 104 and compressing mechanism 102.
Specifically, in housing 2, there is chamber.
Motor 104 is located in housing 2.
Wherein, motor 104 and compressing mechanism 102 from upper (as shown in Figure 1 top) under successively the chamber of housing 2 is divided into the upper space H on motor 104, the lower space L between motor 104 and compressing mechanism 102 and is positioned at the supplementary bearing 55 of compressing mechanism 102 and the seal space of the baffler 56 of compressing mechanism 102.
On eccentric shaft 30, there is the shaft through-hole 35 that is communicated with described seal space and upper space H.
According to vertical rotating compressor of the present utility model, by the shaft through-hole of the upper space in communication seals space and housing is set on eccentric shaft, can will in compression chamber, mix oily refrigerant and entered described seal space and pump to the upper space of motor top, cooling so that motor is carried out, can effectively prevent motor overheating.
According to an example of the present utility model, described vertical rotating compressor also comprises outlet pipe 3.On the stator 11 of motor 104, there is the exhaust passage 18 that lower end is communicated with lower space L and upper end closed.Outlet pipe 3 is located at the side of housing 3 and is communicated with exhaust passage 18.Advantageously, flow out to the refrigerant of motor lower portion space L, the passage between periphery and the housing 2 of the stator 11 of process motor 104, arrives outlet pipe 3.Thus, motor 104 is carried out after cooling being left in lower space L when having mixed oily refrigerant, carry out separating of oil and refrigerant, oil is back in accumulator 8, refrigerant by exhaust passage 18 via the outlet pipe 3 device recycling that is condensed.Reduce the oil mass of telling of vertical rotating compressor.In addition, mixed oily refrigerant motor 104 is carried out cooling time, self is heated, has also prevented the excessively cold generation of oil, thereby has improved the reliability of compressor.
According to an example of the present utility model, between the periphery and housing 2 internal diameters of the stator 11 of motor 104, configure in periphery or housing 2 inner radius of the stator 11 of motor 104 device that reduces the interval area to motor upper space H and motor lower portion space L opening.
According to an example of the present utility model, housing 2 can be configured to cylindrical housings.Motor 104 is for concentrating rolling variable-frequency motor or distribution rolling constant-seed motor.
Description below will make to become more clear according to vertical rotating compressor of the present utility model.
Fig. 1 shows according to the basic structure of an embodiment's of the utility model vertical rotating formula compressor R, and the summary of coupled freezing cycle device.Vertical rotating compressor R, by be provided in motor 104 on sealing cylinder shape housing 2, with and the revolving compressing mechanism 102 that is equipped with of downside form.In the accumulator 8 of the bottom of housing 2, enclose oil 6.The stator 11 of motor 104 and the periphery of compressing mechanism 102 are fixed on the inner radius of housing 2.
At this, the space forming between motor 104 and housing 2 is motor upper space H, and the space forming between motor 104 and compressing mechanism 102 is motor lower portion space L.In addition, in Fig. 1, motor 104 can adopt and concentrate rolling variable-frequency motor, also can adopt distribution rolling constant-seed motor.
In motor stator 11, such as can be by by PBT(thermoplasticity saturated polyester) the coil insulation frame 17 of moulding, make motor coil 15 and electric machine iron core (electromagnetic steel plate) insulation.The insulating frame periphery 17a that the periphery of coil insulation frame 17 is stretched out is dull and stereotyped circle, and the internal diameter of its external diameter and housing 2 is suitable.Therefore, the upper end of 4～6 iron core periphery otch 14 that possess on motor stator 11 is insulated frame periphery 17a and stops up, so the motor upper space H of sealing has just formed between motor 104 and housing 2.In addition, the upper end of iron core external undercut 14 and coil insulation frame 17 are non-integral, annular separate part are pressed into the interior week of housing 2, also can in the upper end of stopping up iron core periphery otch 14.
A part of width of the periphery of motor stator 11 and the degree of depth arrange undercut groove as exhaust passage 18 by 10～12mm left and right respectively.In addition, near this upper end, configured the outlet pipe 3 being located on housing 2.In addition, the upper end of exhaust passage 18 is also insulated that frame periphery 17a stops up, the lower end of exhaust passage 18 is at L place, motor lower portion space opening.
In compression chamber 41, compression is discharged to the high pressure refrigerant in silencing apparatus 56, for being rich in oil and the oil of high pressure refrigerant composition and the mixture of refrigerant of a large amount of spray form oil.This oil-refrigerant mixture, out passes through the glade plane spaces such as piston 70 and slide plate 72 to compression chamber 41 fuel feeding from accumulator 8.So this oil-refrigerant mixture is equivalent to common compression chamber and sucks about 5% of coolant quantity.
This oil-refrigerant mixture,, is discharged in motor upper space H by the shaft through-hole 35 possessing on eccentric shaft 30 through silencing apparatus 56 from the venting gas appliance 58 of supplementary bearing 55.And oil-refrigerant mixture is through gap and the rotor circumferential play 22 of the motor coil 15 that possesses in the internal diameter of motor stator 11, under the periphery by rotor cover plate 25 and end turn, interior all gaps of 15b, flow out in the L of motor lower portion space.
In this flow process, oil-refrigerant mixture is heated by the motor coil 15 of high temperature and motor stator 11, so oil-refrigerant mixture is separated into oil and the gas coolant of spray form, oil is fallen in the accumulator 8 of bottom of housing 2.On the other hand, gas coolant is in the L of motor lower portion space, and the condenser C of the exhaust passage 18 possessing by the periphery of motor stator 11 from outlet pipe 3 to freeze cycle discharges.The sequential flowing of pressing vaporizer E, liquid-storage container A at the high pressure refrigerant of condenser C condensation, from expansion valve V, sucks compression chamber 41 from suction pipe 9.In figure, the loop of described oil-refrigerant mixture identifies with dotted arrow.
At this, the mobile aspect of interior oil-refrigerant mixture of housing 2, this enforcement are compared with rotary compressor in the past, oil-refrigerant mixture that rotary compressor is in the past discharged from compression chamber 41 is after silencing apparatus 56 flows out to motor lower portion space L, be diverted in the inside and outside undercut groove of motor stator, collaborate at motor upper space H respectively., be separated into oil and gas coolant here, discharge to condenser from the outlet pipe of the upper end of housing 2.The oil separating falls to accumulator from the periphery undercut groove of motor stator.But because the effect of described oil-refrigerant mixture of upwards shunting cannot free fall.Therefore, a part is trapped in motor upper space H place, discharges, so its shortcoming is to tell oil mass can increase together with gas coolant from outlet pipe.
On the other hand, in embodiment illustrated in fig. 1, all oil-refrigerant mixtures of discharge turn around at motor upper space H, pass through from top to bottom the inside of motor stator 11, carry out heat exchange with the motor coil 15 of high temperature simultaneously.Therefore, motor coil 15 is because oil-refrigerant mixture can effective cooling.Therefore, the oil-refrigerant mixture after heating becomes from the oil of spray form the fluid oil that density is high, so separate from mix refrigerant in motor lower portion L.Effectively increase heated oil and get back in accumulator 8, the gas coolant of motor lower portion space L is discharged to condenser C from the outlet pipe 3 being connected with exhaust passage 18.
In embodiment illustrated in fig. 1, possess following characteristics, oil-refrigerant mixture that compression chamber 41 is discharged flows out to motor upper space H by the shaft through-hole 35 of eccentric shaft 30.In addition, the inside of all oil-refrigerant mixtures that flow out to motor upper space H by motor stator 11 from motor lower portion space L flow out and, by the exhaust passageway 18 Exhaust Gas refrigerants that possess in the periphery of motor stator 11.
According to these features, there is following beneficial effect according to vertical rotating compressor of the present utility model:
(1) motor coil 15 is directly cooling by exhaust refrigerant, so can improve reliability and the efficiency of motor.
(2) from outlet pipe 3 out to tell oil mass less, accumulator 8 can maintain suitable oil mass conventionally.
(3) the low temperature refrigerant of discharging from compression chamber 41 flows to the upper space H of motor, so the oil of accumulator 8 can directly not be subject to the impact of exhaust refrigerant.On the other hand, by with the oily interflow of being heated by motor coil, the degree of superheat of oil has increase, can improve so excessive refrigerant dissolves the oil viscosity the bringing integrity problem causing that declines.
(4) the pulsation sound that the refrigerant of discharging from compressor 41 has, not the inside that was directly discharged to motor lower portion space L as in the past from silencing apparatus 56, but flow out to the inside of motor lower portion space L by the inside of shaft through-hole 35 and motor upper space H and motor stator 11 from silencing apparatus 56, so level of noise can reduce etc., can obtain so significant effect of improving.
According to an example of the present utility model, the oil that described vertical rotating compressor has also possessed the bottom storage that makes housing 2 flows out to the lubricating fitting of the eccentric shaft of motor lower portion space L through the periphery of eccentric shaft 30.
Fig. 2 is the local enlarged diagram of Fig. 1.It is mainly the lubricating method that represents compressing mechanism 102 and eccentric shaft 30.Eccentric shaft 30 is supported, is rotated in the above by thrust plate 57.The passage that shaft through-hole 35 is the exhaust refrigerant of discharging from compression chamber 41, so the internal diameter of eccentric shaft 30 uses as oil pump and oil supply gallery can not resembling in the past.Improve countermeasure as it, the lower end of rotor 20 can be equipped with rotor cover plate 25.Circular cover that rotor cover plate 25 is side possesses several vents 26, be fixed on above rotor 20 by rotor rivet 23.
The oil of shunting here, be divided into from the oil groove 32a of eccentric shaft through oil groove 50a flow out to the inside of rotor cover plate 25 loop, flow to loop countershaft oil groove 55a, slide up and down surface current to compression chamber 41(low pressure～high pressure from the internal diameter of the piston 70 of high pressure Side through piston 70) loop.These oil supply loops, have lubricated the external diameter of each axle of eccentric shaft 30 midway, the piston 70 sliding with them and each internal diameter of main bearing 50 and supplementary bearing 55.In rotor cover plate 25 mobile oil from vent 26 to end turn 15b disperse.These oil supply loops represent with solid arrow.In addition, the gap of the external diameter of the center hole of rotor cover plate 25 and main bearing 50 needs enough little.
According to vertical rotating compressor of the present utility model, iron core periphery otch 14(Fig. 1, Fig. 2) do not need as mixing the path of refrigerant or the passage that oil falls, so, can abolish iron core periphery otch 14, benefit is that electric efficiency can be improved in the scope of about a few percent.
In Fig. 3, electric machine iron core 11 has been abolished iron core periphery otch 14 and exhaust passage 18, and stator 11 external diameters are designed to the circle identical with housing internal diameter.
From silencing apparatus 56 by shaft through-hole 35 to the mixing refrigerant of discharging motor upper space H in the same manner as in Example 1, the gap of the motor coil 15 possessing in the internal diameter by motor stator 11 and rotor circumferential play 22 flow out to motor lower portion space L.At this, oil gets back to accumulator 8, gas coolant from the outlet pipe 3 of motor lower portion space L opening is discharged to condenser C.Its result, can obtain the effect identical with embodiment illustrated in fig. 1.But, in oil sealing amount and the more design of refrigerant enclosed volume, so the pasta of accumulator 8 can uprise the aperture position that can append exhaust passage 18 as embodiment illustrated in fig. 1 and improve outlet pipe 3.
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 described term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiments or example.
Although illustrated and described embodiment of the present utility model above, be understandable that, described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change 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 (6)
1. a vertical rotating compressor, is characterized in that, comprising:
Housing, has chamber in described housing;
Motor, described motor is located in described housing; With
Compressing mechanism, described compressing mechanism is located at below described motor in described housing, and described compressing mechanism comprises cylinder and the eccentric shaft with compression chamber, and the upper end of described eccentric shaft is connected with described motor;
Wherein, described motor and described compressing mechanism are divided into the chamber of described housing successively from top to bottom the motor upper space on described motor, the motor lower portion space between described motor and described compressing mechanism and are positioned at the seal space at the supplementary bearing of described compressing mechanism and the baffler place of described compressing mechanism, have the shaft through-hole that is communicated with described seal space and described upper space on described eccentric shaft.
2. vertical rotating compressor according to claim 1, it is characterized in that, also comprise outlet pipe, have the exhaust passage that lower end is communicated with described motor lower portion space and upper end closed on the stator of described motor, described outlet pipe is located at the side of described housing and is communicated with described exhaust passage.
3. vertical rotating compressor according to claim 2, is characterized in that, flows out to the refrigerant in described motor lower portion space, and the passage between periphery and the described housing of the stator of the described motor of process, arrives described outlet pipe.
4. vertical rotating compressor according to claim 1 and 2, it is characterized in that, between the periphery and described housing internal diameter of the stator of described motor, configure in periphery or the described housing inner radius of the stator of described motor the device that reduces the interval area to described motor upper space and described motor lower portion space opening.
5. vertical rotating compressor according to claim 1, is characterized in that: the oil that has possessed the bottom storage that makes described housing flows out to the lubricating fitting of the described eccentric shaft in described motor lower portion space through the periphery of described eccentric shaft.
6. vertical rotating compressor according to claim 1 and 2, is characterized in that, described motor is for concentrating rolling variable-frequency motor or distribution rolling constant-seed motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320614973.5U CN203614404U (en) | 2013-09-30 | 2013-09-30 | Vertical rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320614973.5U CN203614404U (en) | 2013-09-30 | 2013-09-30 | Vertical rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614404U true CN203614404U (en) | 2014-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320614973.5U Expired - Fee Related CN203614404U (en) | 2013-09-30 | 2013-09-30 | Vertical rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614404U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557160A (en) * | 2013-09-30 | 2014-02-05 | 广东美芝制冷设备有限公司 | Vertical type rotary compressor |
-
2013
- 2013-09-30 CN CN201320614973.5U patent/CN203614404U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557160A (en) * | 2013-09-30 | 2014-02-05 | 广东美芝制冷设备有限公司 | Vertical type rotary compressor |
| CN103557160B (en) * | 2013-09-30 | 2017-08-01 | 广东美芝制冷设备有限公司 | Vertical rotary compressor |
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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: 20140528 Termination date: 20190930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |