CN207847936U - A kind of Novel variable-frequency scroll compressor - Google Patents

A kind of Novel variable-frequency scroll compressor Download PDF

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Publication number
CN207847936U
CN207847936U CN201721922129.3U CN201721922129U CN207847936U CN 207847936 U CN207847936 U CN 207847936U CN 201721922129 U CN201721922129 U CN 201721922129U CN 207847936 U CN207847936 U CN 207847936U
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Prior art keywords
chamber
vortex
quiet
novel variable
scroll compressor
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CN201721922129.3U
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张鑫
薛振江
严小斌
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Scientific And Technological Co Ltd Of Electron Of Industrial Park Tigers Of Suzhou
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Scientific And Technological Co Ltd Of Electron Of Industrial Park Tigers Of Suzhou
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Abstract

The utility model discloses a kind of Novel variable-frequency scroll compressor comprising:Shell is provided with air intake duct and exhaust pipe on shell;External rotor driving motor structure, for providing power for scroll compression body;Scroll compression body, it is set to the lower section of external rotor driving motor structure, it includes dynamic vortex and quiet vortex from top to bottom, dynamic vortex is sequentially connected with external rotor driving motor structure, the chamber of enclosure is divided into the chamber of upper and lower two isolation sealed to each other by quiet be vortexed, the chamber of top is suction muffler, and the chamber of lower section is the oil sump chamber for holding lubricating oil;Air intake duct is connected with suction muffler, and the compression chamber between exhaust pipe and dynamic vortex and quiet vortex is connected, and compression chamber is also connected by fuel sucking pipe with oil sump chamber.The utility model scroll compression body is placed on complete machine lower part, connects suction muffler and oil sump chamber by fuel sucking pipe, the lubricating oil of oil sump intracavitary is adsorbed by Bernoulli effect, improve oil suction reliability, reduce the dependence to rotating speed.

Description

A kind of Novel variable-frequency scroll compressor
Technical field
The utility model is related to compressor field, more particularly to a kind of Novel variable-frequency scroll compressor.
Background technology
In the prior art, as shown in Figure 1, compressor design divides high-pressure side and low-pressure side to design, high-pressure side refers to motor The cavity at place (high pressure) on exhaust pathway, low-pressure side refers to the cavity where motor on suction pathway (low pressure), low The design of pressure side can be fully cooled the temperature of motor, improve motor reliability, but especially working at high speed spits oil in frequency conversion running Rate is higher, and compressor is easy oil starvation, and the motor generally use internal rotor of low-pressure side (motor cavity is suction muffler) screw compressor is (fixed Son outside, including rotor), stator is typically secured on compressor case, and pressure texture is arranged on the top of casing, and oil sump is under Portion, fuel feeding are completed by the interstitial hole of bottom oil pump and axis.
The prior art has the following defects:Compression work part is on top:Far from oil sump, oil transportation path length, mutation probability It is easy to inhale when height, the especially slow-speed of revolution operate not oil;Using positive displacement or centrifugal oil pump fuel feeding:Fuel feeding is influenced non-by rotating speed Chang great, when high rotating speed, spit oil cut rate height, and compressor is easy oil starvation;Stator is fixed on the rack, and the stress of all stators can all be transmitted It is ultimately converted to make an uproar to rack and shell.
Utility model content
In order to solve the above-mentioned technical problem, the utility model proposes Novel variable-frequency scroll compressors.
In order to achieve the above object, the technical solution of the utility model is as follows:
A kind of Novel variable-frequency scroll compressor, including:
Shell is provided with air intake duct and exhaust pipe on shell;
External rotor driving motor structure, is set to enclosure, for providing power for scroll compression body;
Scroll compression body is set to enclosure, and is set to the lower section of external rotor driving motor structure, wraps from top to bottom Dynamic vortex and quiet vortex are included, dynamic vortex is sequentially connected with external rotor driving motor structure, and the chamber of enclosure is divided by quiet vortex The chamber of the chamber of upper and lower two isolation sealed to each other, top is suction muffler, and the chamber of lower section is the oil for holding lubricating oil Cell cavity;
Air intake duct is connected with suction muffler, and the compression chamber between exhaust pipe and dynamic vortex and quiet vortex is connected, and compresses Chamber is also connected by fuel sucking pipe with oil sump chamber.
A kind of Novel variable-frequency scroll compressor of the utility model has the advantages that:
1) outer rotor driving structure, more compact structure, assembling is used to be more convenient.
2) scroll compression body is placed on complete machine lower part, connects suction muffler and oil sump chamber by fuel sucking pipe, passes through Bernoulli Jacob Effect (negative pressure that suction muffler is generated in air-breathing) adsorbs the lubricating oil of oil sump intracavitary, improves oil suction reliability, reduces pair The dependence of rotating speed.
3) it can effectively manage by define fuel sucking pipe maximum inner diameter and length and spit oil cut rate when running at high speed, to have Effect management trapped fuel amount.
Based on the above technical solution, following improvement can also be done:
As a preferred option, quiet vortex is fixedly connected with outer casing inner wall.
Using the above preferred scheme, noise problem caused by internal stress is transmitted to shell, and the jail of complete machine are improved Soundness greatly improves.
As a preferred option, quiet vortex is fixedly connected by damping shock absorption block with outer casing inner wall.
It using the above preferred scheme, can better noise reduction.
As a preferred option, external rotor driving motor structure is sequentially connected with dynamic vortex by eccentric stiffener, outer rotor driving Mechanism drives dynamic vortex to be eccentrically rotated by eccentric stiffener.
Using the above preferred scheme, scroll compression is realized.
As a preferred option, external rotor driving motor structure includes:Outer rotor, inner stator, bearing block and transmission shaft, it is outer to turn Son is fixedly connected with transmission shaft, and outer rotor is located above, and transmission extends axially below, the lower end of transmission shaft and screw compressor The dynamic vortex of structure is sequentially connected;
Inner stator fixing sleeve is set on bearing block, and electromagnetic matching is formed between outer rotor.
Using the above preferred scheme, it is more convenient to assemble, and appliance is few, at low cost.
As a preferred option, one or more bearings are provided between bearing block and transmission shaft.
Using the above preferred scheme, transmission is more effective.
As a preferred option, bearing block is fixedly connected with quiet vortex and/or shell.
Using the above preferred scheme, the complete machine after assembling is more secured, and low noise.
As a preferred option, bearing block is the structure at least one cascaded surface, and inner stator is set on cascaded surface, And there is bearing block the epitaxy part extended to scroll compression body direction, the end face of epitaxy part to be contacted with the end face of quiet vortex, and It is fixedly connected.
Using the above preferred scheme, a cavity body is formed between bearing block and quiet vortex, and dynamic vortex is then set to this In cavity body, more compact structure, and low noise.
As a preferred option, inner stator is fixedly connected with quiet vortex and/or shell.
Using the above preferred scheme, the complete machine after assembling is more secured, and low noise.
As a preferred option, plane bearing is equipped between bearing block and dynamic vortex.
Using the above preferred scheme, dynamic vortex rotation is more stable, and low noise.
Description of the drawings
Fig. 1 is the structural schematic diagram of the compressor of the prior art.
Fig. 2 is the structural schematic diagram for the Novel variable-frequency scroll compressor that the utility model embodiment provides.
Fig. 3 is the structural schematic diagram for the bearing block that the utility model embodiment provides.
Wherein:1 shell, 11 air intake ducts, 12 exhaust pipes, 2 external rotor driving motor structures, 21 outer rotors, 22 inner stators, 23 bearings Seat, 231 cascaded surfaces, 232 epitaxy parts, 24 transmission shafts, 3 scroll compression bodies, 31 dynamic vortex, 32 quiet vortexs, 4 suction mufflers, 5 oil sumps Chamber, 6 damping shock absorption blocks, 7 eccentric stiffeners, 8 bearings, 9 plane bearings, 10, fuel sucking pipe.
Specific implementation mode
The preferred embodiment that according to the present invention will be described in detail below with reference to the accompanying drawings.
In order to reach the purpose of this utility model, in some of embodiments of Novel variable-frequency scroll compressor, such as Fig. 2 Shown, a kind of Novel variable-frequency scroll compressor includes:
Shell 1 is provided with air intake duct 11 and exhaust pipe 12 on shell 1;
External rotor driving motor structure 2 is set to inside shell 1, for providing power for scroll compression body;
Scroll compression body 3 is set to inside shell 1, and is set to the lower section of external rotor driving motor structure 2, is arrived from above Include dynamic vortex 31 and quiet vortex 32 down, dynamic vortex 31 is sequentially connected with external rotor driving motor structure 2, and quiet vortex 32 will be in shell 1 The chamber in portion is divided into the chamber of upper and lower two isolation sealed to each other, and the chamber of top is suction muffler 4, the chamber of lower section be for Hold the oil sump chamber 5 of lubricating oil;
Air intake duct 11 is connected with suction muffler 4, and the compression chamber between exhaust pipe 12 and dynamic vortex 31 and quiet vortex 32 is connected It is logical, and compression chamber is also connected by fuel sucking pipe 10 with oil sump chamber 5.
A kind of Novel variable-frequency scroll compressor of the utility model has the advantages that:
1) outer rotor driving structure 2, more compact structure, assembling is used to be more convenient.
2) scroll compression body 3 is placed on complete machine lower part, by connecting suction muffler 4 and oil sump chamber 5 with fuel sucking pipe 10, passes through Bernoulli effect (negative pressure that suction muffler 4 is generated in air-breathing) adsorbs the lubricating oil in oil sump chamber 5, and it is reliable to improve oil suction Property, reduce the dependence to rotating speed.
3) it can effectively manage by define fuel sucking pipe 10 maximum inner diameter and length and spit oil cut rate when running at high speed, to Effectively management trapped fuel amount.
In order to further optimize the implementation result of the utility model, in other embodiment, remaining feature skill Art is identical, the difference is that, quiet vortex 32 is fixedly connected with 1 inner wall of shell.
Using the above preferred scheme, noise problem caused by internal stress is transmitted to shell 1, and the jail of complete machine are improved Soundness greatly improves.
Further, quiet vortex 32 is fixedly connected by damping shock absorption block 6 with 1 inner wall of shell.
It using the above preferred scheme, can better noise reduction.Damping shock absorption block 6 can be a variety of damping structures, such as:L The elastomer block of shape.
In order to further optimize the implementation result of the utility model, in other embodiment, remaining feature skill Art is identical, the difference is that, external rotor driving motor structure 2 is sequentially connected with dynamic vortex 31 by eccentric stiffener 7, outer rotor driving Mechanism 2 drives dynamic vortex 31 to be eccentrically rotated by eccentric stiffener 7.
Using the above preferred scheme, scroll compression is realized.
In order to further optimize the implementation result of the utility model, in other embodiment, remaining feature skill Art is identical, the difference is that, external rotor driving motor structure 2 includes:Outer rotor 21, inner stator 22, bearing block 23 and transmission shaft 24, outer rotor 21 is fixedly connected with transmission shaft 24, and outer rotor 21 is located above, and transmission shaft 24 extends downwards, transmission shaft The dynamic vortex 31 of lower end and scroll compression body is sequentially connected;
22 fixing sleeve of inner stator is set on bearing block 23, and forms electromagnetic matching between outer rotor 21.
Using the above preferred scheme, it is more convenient to assemble, and appliance is few, at low cost.All 2 stress of external rotor driving motor structure are only Being transmitted to bearing block 23 can further decrease without being directly passed to shell 1, the noise level of complete machine.
In order to further optimize the implementation result of the utility model, in other embodiment, remaining feature skill Art is identical, the difference is that, one or more bearings 8 are provided between bearing block 23 and transmission shaft 24.
Using the above preferred scheme, transmission is more effective.
In order to further optimize the implementation result of the utility model, in other embodiment, remaining feature skill Art is identical, the difference is that, bearing block 23 is fixedly connected with quiet vortex 32 and/or shell 1.
Using the above preferred scheme, the complete machine after assembling is more secured, and low noise.
In order to further optimize the implementation result of the utility model, in other embodiment, remaining feature skill Art is identical, the difference is that, as shown in figure 3, bearing block 23 is the structure at least one cascaded surface 231, inner stator 22 It is set on cascaded surface 231, and bearing block 23 has the epitaxy part 232 extended to scroll compression body direction, epitaxy part 232 End face is contacted with the end face of quiet vortex 32, and is fixedly connected.
Using the above preferred scheme, a cavity body is formed between bearing block 23 and quiet vortex 32, and dynamic vortex 31 is then set It is placed in the cavity body, more compact structure, and low noise.Epitaxy part 232 can be " L " shape.The wall thickness of epitaxy part 232 is more than quiet The wall thickness of vortex 32.
In order to further optimize the implementation result of the utility model, in other embodiment, remaining feature skill Art is identical, the difference is that, inner stator 22 is fixedly connected with quiet vortex 32 and/or shell 1.
Using the above preferred scheme, the complete machine after assembling is more secured, and low noise.
In order to further optimize the implementation result of the utility model, in other embodiment, remaining feature skill Art is identical, the difference is that, plane bearing 9 is equipped between bearing block 23 and dynamic vortex 31.
Using the above preferred scheme, dynamic vortex 31 rotates more stable, and low noise.
The utility model utilizes Bernoulli effect oil absorption, can be effectively improved the characteristic of fuel delivery of compressor.Meanwhile this Utility model also utilizes the damping sound insulation structure to cooperate with external rotor driving motor structure, improves the noise level of compressor.
For preferred embodiments of the present invention, it is noted that for those of ordinary skill in the art, Under the premise of not departing from the concept of the present invention, various modifications and improvements can be made, it is new that these belong to this practicality The protection domain of type.

Claims (10)

1. a kind of Novel variable-frequency scroll compressor, which is characterized in that including:
Shell is provided with air intake duct and exhaust pipe on the shell;
External rotor driving motor structure is set to the enclosure, for providing power for scroll compression body;
Scroll compression body is set to the enclosure, and is set to the lower section of the external rotor driving motor structure, is arrived from above Include dynamic vortex and quiet vortex down, the dynamic vortex is sequentially connected with the external rotor driving motor structure, and the quiet vortex will be described The chamber of enclosure is divided into the chamber of upper and lower two isolation sealed to each other, and the chamber of top is suction muffler, the chamber of lower section For the oil sump chamber for holding lubricating oil;
The air intake duct is connected with the suction muffler, the compression chamber phase between the exhaust pipe and the dynamic vortex and quiet vortex Connection, and the compression chamber is also connected by fuel sucking pipe with oil sump chamber.
2. Novel variable-frequency scroll compressor according to claim 1, which is characterized in that the quiet vortex and the shell Inner wall is fixedly connected.
3. Novel variable-frequency scroll compressor according to claim 2, which is characterized in that quiet be vortexed is subtracted by damping Shake block is fixedly connected with the outer casing inner wall.
4. according to claim 1-3 any one of them Novel variable-frequency scroll compressors, which is characterized in that the outer rotor drives Motivation structure is sequentially connected with dynamic vortex by eccentric stiffener, and the external rotor driving motor structure passes through described in eccentric stiffener driving Dynamic vortex is eccentrically rotated.
5. Novel variable-frequency scroll compressor according to claim 4, which is characterized in that the external rotor driving motor structure packet It includes:Outer rotor, inner stator, bearing block and transmission shaft, the outer rotor are fixedly connected with the transmission shaft, and the outer rotor It is located above, the transmission extends axially below, and the lower end of the transmission shaft and the dynamic vortex of the scroll compression body are driven Connection;
The inner stator fixing sleeve is set on the bearing block, and forms electromagnetic matching between the outer rotor.
6. Novel variable-frequency scroll compressor according to claim 5, which is characterized in that in the bearing block and transmission shaft Between be provided with one or more bearings.
7. Novel variable-frequency scroll compressor according to claim 6, which is characterized in that the bearing block and the quiet whirlpool Rotation and/or shell are fixedly connected.
8. Novel variable-frequency scroll compressor according to claim 7, which is characterized in that the bearing block is at least The structure of one cascaded surface, the inner stator are set on the cascaded surface, and the bearing block has to the scroll compression The epitaxy part that mechanism direction extends, the end face of the epitaxy part is contacted with the end face of the quiet vortex, and is fixedly connected.
9. Novel variable-frequency scroll compressor according to claim 8, which is characterized in that the inner stator and the quiet whirlpool Rotation and/or shell are fixedly connected.
10. Novel variable-frequency scroll compressor according to claim 9, which is characterized in that the bearing block is moved with described Plane bearing is equipped between vortex.
CN201721922129.3U 2017-12-30 2017-12-30 A kind of Novel variable-frequency scroll compressor Active CN207847936U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721922129.3U CN207847936U (en) 2017-12-30 2017-12-30 A kind of Novel variable-frequency scroll compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721922129.3U CN207847936U (en) 2017-12-30 2017-12-30 A kind of Novel variable-frequency scroll compressor

Publications (1)

Publication Number Publication Date
CN207847936U true CN207847936U (en) 2018-09-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109989919A (en) * 2017-12-30 2019-07-09 苏州工业园区泰格电子科技有限公司 A kind of Novel variable-frequency scroll compressor
CN111379689A (en) * 2018-12-28 2020-07-07 塔莱斯公司 Stirling cycle cooler with unitary support

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109989919A (en) * 2017-12-30 2019-07-09 苏州工业园区泰格电子科技有限公司 A kind of Novel variable-frequency scroll compressor
CN111379689A (en) * 2018-12-28 2020-07-07 塔莱斯公司 Stirling cycle cooler with unitary support
CN111379689B (en) * 2018-12-28 2024-03-26 塔莱斯公司 Stirling cycle cooler with a single support

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