CN204312335U - Rotary compressor and refrigeration system - Google Patents
Rotary compressor and refrigeration system Download PDFInfo
- Publication number
- CN204312335U CN204312335U CN201420768140.9U CN201420768140U CN204312335U CN 204312335 U CN204312335 U CN 204312335U CN 201420768140 U CN201420768140 U CN 201420768140U CN 204312335 U CN204312335 U CN 204312335U
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- Prior art keywords
- section
- rotary compressor
- external diameter
- main shaft
- stator
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Abstract
The utility model discloses a kind of rotary compressor and refrigeration system.Described rotary compressor, comprising: housing; Motor section, described motor section to be located in described housing and to comprise stator and be located at the rotor of described stator interior rotationally; Press part, described press part to be located in described housing and to comprise bent axle, described bent axle has main shaft section, countershaft section and off-axis section, and described off-axis section is located between described main shaft section and described countershaft section prejudicially, described main shaft section be fixed in described rotor at least partially; The external diameter of wherein said stator
the external diameter of described main shaft section
with the external diameter of described off-axis section
meet following relation:
and meet
little according to the frictional loss of the rotary compressor of the utility model embodiment, efficiency is high.
Description
Technical field
The utility model relates to living electric apparatus field, especially relates to the refrigeration system of a kind of rotary compressor and this rotary compressor of application.
Background technique
As everyone knows, frictional loss is the important indicator affecting rotary compression engine efficiency, and frictional loss is less, and the COP (Coefficient Of Performance, the coefficient of performance) of rotary compressor is higher.And the frictional loss of rotary compressor mainly occurs between bent axle and the parts be in contact with it, the frictional loss ratio accounting for rotary compressor total is about 50%.The frictional loss of bent axle is mainly relevant with crankshaft diameter size, contact length, namely relevant with area of contact, bent axle deflection deformation.
In industry, in fact the setting of crankshaft diameter size needs the structure size with reference to corresponding motor section.The external diameter of the main shaft section of bent axle
with the stator outer diameter of motor section
ratio be generally set in 0.141 ~ 0.172 scope, frictional loss is comparatively large, causes the compression efficiency of press part not to be not fully exerted.
Model utility content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model needs to propose a kind of rotary compressor, and the frictional loss of this rotary compressor is little, and efficiency is high.
The utility model also needs the refrigeration system proposing a kind of this rotary compressor of application.
According to the rotary compressor of the utility model first aspect, comprising: housing; Motor section, described motor section to be located in described housing and to comprise stator and be located at the rotor of described stator interior rotationally; Press part, described press part to be located in described housing and to comprise bent axle, described bent axle has main shaft section, countershaft section and off-axis section, and described off-axis section is located between described main shaft section and described countershaft section prejudicially, described main shaft section be fixed in described rotor at least partially; The external diameter of wherein said stator
the external diameter of described main shaft section
with the external diameter of described off-axis section
meet following relation:
and meet
According to the rotary compressor of the utility model embodiment, by making the external diameter of stator
the external diameter of main shaft section
with the external diameter of off-axis section
meet following relation:
and meet
thus under the prerequisite ensureing rotary compressor reliability, the frictional loss of rotary compressor is reduced, thus the coefficient of performance of rotary compressor can be improved, improve the efficiency of rotary compressor.
Preferably, by making the external diameter of stator
the external diameter of main shaft section
with the external diameter of off-axis section
meet following relation:
and meet
the frictional loss of further reduction rotary compressor 100, thus the efficiency improving rotary compressor 100 further.
In addition, also following additional technical feature can be had according to rotary compressor of the present utility model:
The height H of described stator, the external diameter of described stator
with the external diameter of described main shaft section
meet following relation:
and K≤0.5, and meet relation:
According to the refrigeration system of the utility model second aspect embodiment, comprising: the rotary compressor according to the utility model first aspect; Condenser, the entrance of described condenser is connected with the outlet of described rotary compressor; Expansion gear, the entrance of described expansion gear is connected with the outlet of described condenser; Vaporizer, the entrance of described vaporizer is connected with the outlet of described expansion gear, and the outlet of described vaporizer is connected with the entrance of described rotary compressor.
Due to, above-mentioned rotary compressor has above-mentioned beneficial effect, therefore by arranging the rotary compressor of above-described embodiment, thus can improve the refrigerating efficiency of refrigeration system.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the rotary compressor according to the utility model embodiment.
Reference character:
Rotary compressor 100;
Housing 1; Installing space 11; Motor section 2; Stator 21; Rotor 22;
Press part 3;
Bent axle 31; Main shaft section 311; Countershaft section 312; Off-axis section 313;
Cylinder 32; Cylinder chamber 33;
Upper bearing (metal) 34; Lower bearing 35;
Refrigeration system 200; Condenser 201; Expansion gear 202; Vaporizer 203.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, the term of indicating position or position relationship is based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
Below with reference to Fig. 1, the rotary compressor 100 according to the utility model embodiment is described.Rotary compressor 100 according to the utility model embodiment comprises: housing 1, motor section 2 and press part 3.
Housing 1 inside limits the installing space 11 of relative closure, and motor section 2 is located in housing 1 and motor section 2 comprises stator 21 and is located at the rotor 22 of stator 21 inside rotationally.Press part 3 is located in housing 1 and press part 3 comprises bent axle 31, bent axle 31 has main shaft section 311, countershaft section 312 and off-axis section 313, off-axis section 313 is located between main shaft section 311 and countershaft section 312 prejudicially, wherein, and the dead in line of main shaft section 311 and countershaft section 312.Main shaft section 311 be fixed in rotor 22 at least partially, like this when rotor 22 rotates in stator 21, rotor 22 can be utilized to be with dynamic crankshaft 31 to rotate.
Wherein, stator 21 can be located in housing 1 by the mode of interference fit, and bent axle 31 can interference fit be located in rotor 22, particularly, and being embedded in rotor 22 by interference mode at least partially of the main shaft section 311 of bent axle 31.
Certainly, press part 3 also comprises: be formed the cylinder 32 of cylinder chamber 33, be respectively connected with the upper and lower end face of cylinder 32 and for the upper bearing (metal) 34 of sealing cylinder room 33 and lower bearing 35, in cylinder chamber 33, make eccentric rotary and be set in piston in off-axis section 313, abut and the slide plate moved reciprocatingly in cylinder chamber 33 with piston.
As described in the application's background technique, as rotary compressor 100, in order to reduce frictional loss, improving compression efficiency, it is preferable that the diameter of main shaft section 311, countershaft section 312 and the off-axis section 313 as far as possible reducing bent axle 31 while guaranteeing compressor reliability essentially.
Therefore, inventor have passed through the experiment of several times, has finally carried out following setting to the stator 21 of the motor section 2 of the rotary compressor 100 of the present embodiment, the dimensional structure of bent axle 31:
That is, the external diameter of stator 21 is determined
the external diameter of main shaft section 311
with the external diameter of off-axis section 313
meet following relation:
and meet
By the external diameter of the main shaft section 311 by bent axle 31
the external diameter of off-axis section 313
with the external diameter of stator 21
size relationship be defined as foregoing, thus the frictional loss of press part 3 can be reduced, the compression efficiency of press part 3 can be played preferably, thus the coefficient of performance (COP) of higher rotary compressor 100 can be obtained.
In addition, below with reference to table 1 and table 2, the rotary compressor 100 of prior art is described with the rotary compressor 100 of the utility model embodiment at relevant each ratio following
and
scope in the coefficient of performance that reaches respectively.
The relation of each ratio of the rotary compressor of table 1 prior art and COP
Each ratio of rotary compressor of table 2 the utility model embodiment and the relation of COP
As above the contrast of table 1 and table 2, when stator 21 external diameter is constant, will
and
ratio control in above-mentioned scope, thus the coefficient of performance of compressor can be improved.
To sum up, according to the rotary compressor 100 of the utility model embodiment, by making the external diameter of stator 21
the external diameter of main shaft section 311
with the external diameter of off-axis section 313
meet following relation:
and meet
thus under the prerequisite ensureing rotary compressor 100 reliability, the frictional loss of rotary compressor 100 is reduced, thus the coefficient of performance of rotary compressor 100 can be improved, improve the efficiency of rotary compressor 100.
Preferably, by making the external diameter of stator 21
the external diameter of main shaft section 311
with the external diameter of off-axis section 313
meet following relation:
and meet
the frictional loss of further reduction rotary compressor 100, thus the efficiency improving rotary compressor 100 further.
Further, for the difference of the size of the height H of the stator 21 of motor section 2, be also different on the impact of the reliability of press part 3.Usually, the height H of stator 21 is less, and the deflection deformation of bent axle 31 is less, thus reliability is also better, and margin is larger.Therefore, when the height H for stator 21 is less, the external diameter of the main shaft section 311 of bent axle 31
can reduce further, improve frictional loss further, promote compression efficiency.That is, the external diameter of the height H of stator 21, stator 21 is made
with the external diameter of main shaft section 311
meet following relation:
and K≤0.5, and meet relation:
According to the refrigeration system 200 of the utility model second aspect embodiment, comprising: rotary compressor 100, condenser 201, expansion gear 202 and vaporizer 203 as above.The entrance of condenser 201 is connected with the outlet of rotary compressor 100, the entrance of expansion gear 202 is connected with the outlet of condenser 201, the entrance of vaporizer 203 is connected with the outlet of expansion gear 202, and the outlet of vaporizer 203 is connected with the entrance of rotary compressor 100.Due to, above-mentioned rotary compressor 100 has above-mentioned beneficial effect, therefore by arranging the rotary compressor 100 of above-described embodiment, thus can improve the refrigerating efficiency of refrigeration system 200.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.
Claims (4)
1. a rotary compressor, is characterized in that, comprising:
Housing;
Motor section, described motor section to be located in described housing and to comprise stator and be located at the rotor of described stator interior rotationally;
Press part, described press part to be located in described housing and to comprise bent axle, described bent axle has main shaft section, countershaft section and off-axis section, and described off-axis section is located between described main shaft section and described countershaft section prejudicially, described main shaft section be fixed in described rotor at least partially;
The external diameter of wherein said stator
the external diameter of described main shaft section
with the external diameter of described off-axis section
meet following relation:
and meet
2. a kind of rotary compressor according to claim 1, is characterized in that, the external diameter of described stator
the external diameter of described main shaft section
with the external diameter of described off-axis section
meet following relation:
and meet
3. a kind of rotary compressor according to claim 1, is characterized in that, the height H of described stator, the external diameter of described stator
with the external diameter of described main shaft section
meet following relation:
and K≤0.5, and meet relation:
4. a refrigeration system, is characterized in that, comprising:
Rotary compressor according to any one of claim 1-3;
Condenser, the entrance of described condenser is connected with the outlet of described rotary compressor;
Expansion gear, the entrance of described expansion gear is connected with the outlet of described condenser;
Vaporizer, the entrance of described vaporizer is connected with the outlet of described expansion gear, and the outlet of described vaporizer is connected with the entrance of described rotary compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420768140.9U CN204312335U (en) | 2014-12-08 | 2014-12-08 | Rotary compressor and refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420768140.9U CN204312335U (en) | 2014-12-08 | 2014-12-08 | Rotary compressor and refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312335U true CN204312335U (en) | 2015-05-06 |
Family
ID=53134653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420768140.9U Withdrawn - After Issue CN204312335U (en) | 2014-12-08 | 2014-12-08 | Rotary compressor and refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312335U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454535A (en) * | 2014-12-08 | 2015-03-25 | 广东美芝制冷设备有限公司 | Rotary type compressor and refrigeration system |
| CN105201842A (en) * | 2015-10-10 | 2015-12-30 | 安徽美芝精密制造有限公司 | Compression mechanism and rotary compressor with compression mechanism |
-
2014
- 2014-12-08 CN CN201420768140.9U patent/CN204312335U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454535A (en) * | 2014-12-08 | 2015-03-25 | 广东美芝制冷设备有限公司 | Rotary type compressor and refrigeration system |
| CN104454535B (en) * | 2014-12-08 | 2016-07-06 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigeration system |
| CN105201842A (en) * | 2015-10-10 | 2015-12-30 | 安徽美芝精密制造有限公司 | Compression mechanism and rotary compressor with compression mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150506 Effective date of abandoning: 20160706 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |