CN103511277B - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
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- CN103511277B CN103511277B CN201310309762.5A CN201310309762A CN103511277B CN 103511277 B CN103511277 B CN 103511277B CN 201310309762 A CN201310309762 A CN 201310309762A CN 103511277 B CN103511277 B CN 103511277B
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- housing
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Abstract
The invention discloses a kind of rotary compressor, comprising: housing; Cylinder, described cylinder is located in described housing, and described cylinder is formed with suction port; Upper bearing (metal), described upper bearing (metal) is located at the top of described cylinder; And frame, described frame is positioned at the top of described upper bearing (metal), and in described cylinder, described upper bearing (metal) and described frame one is soldered to described housing, have multiple solder joint between described one and described housing in wherein said cylinder, described upper bearing (metal) and described frame, the contiguous described suction port of described multiple solder joint is arranged.According to rotary compressor of the present invention, by arranging solder joint in the position of contiguous suction port, reduce the tensile stress that the swelling pressure that are subject to inner surface integral load because of housing produce between suction port, improve the compressive strength of housing, thus improve the reliability of rotary compressor, and cost is low.
Description
Technical field
The present invention relates to art of refrigeration units, especially relate to a kind of rotary compressor.
Background technique
The housing of traditional twin-tub rotation-type compressor is connected by three solder joints with frame, with the central axis of suction port for benchmark, has certain distance between the position of solder joint and suction port, almost close to the both sides of housing.Inside due to twin-tub rotation-type compressor is applied with the highly pressurised liquid of certain load, housing is outwards expanded, produce tensile stress thus, and its circumferential stress is much larger than stress axially, in addition, housing has two suction ports, between the suction port that casing rigidity is weak, easily produce crack, reduce the intensity of high-pressure bottle.
In order to increase the compressive strength of housing, traditional rotary compressor adopts the method increasing housing wall thickness usually, but, although the method reduces the plastic deformation of housing, but create the problems such as the increase of processing charges and the material cost caused due to the round as a ball forming machine maximization of iron plate.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, one object of the present invention is to propose the high and rotary compressor that reliability is high of a kind of compressive strength.
According to the rotary compressor of the embodiment of the present invention, comprising: housing; Cylinder, described cylinder is located in described housing, and described cylinder is formed with suction port; Upper bearing (metal), described upper bearing (metal) is located at the top of described cylinder; And frame, described frame is positioned at the top of described upper bearing (metal), and in described cylinder, described upper bearing (metal) and described frame one is soldered to described housing, have multiple solder joint between described one and described housing in wherein said cylinder, described upper bearing (metal) and described frame, the contiguous described suction port of described multiple solder joint is arranged.
According to the rotary compressor of the embodiment of the present invention, by arranging solder joint in the position of contiguous suction port, reduce the tensile stress that the swelling pressure that are subject to inner surface integral load because of housing produce between suction port, improve the compressive strength of housing, thus improve the reliability of rotary compressor, and cost is low.
In addition, also following additional technical feature can be had according to rotary compressor of the present invention:
According to one embodiment of present invention, the angle between the line of multiple described solder joint and described casing center and the central axis of described suction port is 25 ° ~ 40 °.Thus, the compressive strength of housing can be improved.
Further, the angle between the line of multiple described solder joint and described casing center and the central axis of described suction port is 30 ° ~ 35 °.Thus, the compressive strength of housing is further increased.
Alternatively, multiple described solder joint is spaced to turn up the soil and is distributed in the both sides of described suction port.Thus, by arranging multiple solder joint, can in frame, upper bearing (metal) and cylinder be welded on the inwall of housing securely.
Further, the described multiple solder joint being positioned at described suction port the same side is uniformly distributed along the circumference of described housing.
Further, the described multiple solder joint being positioned at described suction port the same side is uniformly distributed along the axis of described housing.
Alternatively, described solder joint is two and described two solder joints are symmetrical about the central axis of described suction port.Thus, improve the compressive strength of welding efficiency and housing.
According to one embodiment of present invention, described rotary compressor is twin-tub rotation-type compressor.
Additional aspect of the present invention 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 invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the schematic diagram of rotary compressor according to an embodiment of the invention;
Fig. 2 is the schematic diagram of rotary compressor in accordance with another embodiment of the present invention;
Fig. 3 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Fig. 4 is the plan view of rotary compressor according to an embodiment of the invention;
Fig. 5 is the solder joint layout angle of the housing of rotary compressor according to an embodiment of the invention and the graph of relation of stress.
Description of reference numerals:
100: rotary compressor;
1: housing; 11: solder joint; 2: cylinder; 21: suction port;
3: upper bearing (metal); 4: frame; 5: connecting tube.
Embodiment
Be described below in detail embodiments of the invention, 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 present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " transverse direction ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, 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.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Describe the rotary compressor 100 according to the embodiment of the present invention below with reference to Fig. 1-Fig. 5, this rotary compressor 100 can be twin-tub rotation-type compressor.In description below the application, be described for twin-tub rotation-type compressor for rotary compressor 100.Certainly, those skilled in that art are appreciated that, this rotary compressor 100 is only exemplarily described for twin-tub rotation-type compressor, and be not limited thereto, that is, rotary compressor 100 according to the present invention can also be the rotary compressor of other types, such as single cylinder rotary compressor.
As shown in Figure 1-Figure 3, according to the rotary compressor 100 of the embodiment of the present invention, comprise housing 1, cylinder 2, upper bearing (metal) 3 and frame 4.
Cylinder 2 is located in housing 1, and cylinder 2 is formed with suction port 21.With reference to Fig. 1-Fig. 3, holding space is limited in housing 1, cylinder 2 can be formed as the cylindrical shape that top and bottom are all opened wide, the sidewall of cylinder 2 is formed with the suction port 21 and exhaust port (scheming not shown) that run through it, suction port 21 and exhaust port are spaced apart from each other on the sidewall of cylinder 2, suction port 21 for passing into refrigerant to be compressed in cylinder 2, and exhaust port is for discharging the refrigerant after compression.Alternatively, suction port 21 is suitable for being connected with the sucking pipe of outside (scheming not shown), and further, sucking pipe is communicated with suction port 21 by connecting tube 5.
Particularly, as depicted in figs. 1 and 2, two cylinders 2 are provided with in housing 1, two cylinders 2 are spaced apart from each other setting in the vertical direction, the sidewall of each cylinder 2 is all formed with the suction port 21 running through it and exhaust port, alternatively, the line of centres of two suction ports 21 and the central axis of housing 1 almost parallel.
Upper bearing (metal) 3 is located at the top of cylinder 2.As shown in Figure 2, upper bearing (metal) 3 is positioned at the top of cylinder 2, and the bottom of cylinder 2 is provided with lower bearing (scheming not shown), and upper bearing (metal) 3, cylinder 2 and lower bearing limit compression volume jointly, and refrigerant to be compressed is passed in compression volume via suction port 21 by sucking pipe.
With reference to Fig. 1, frame 4 is positioned at the top of cylinder 2, and cylinder 2 is connected on housing 1 by frame 4, and alternatively, cylinder 2 is threaded with frame 4, and frame 4 can be soldered to the inwall of housing 1.
One of them in cylinder 2, upper bearing (metal) 3 and frame 4 is soldered to housing 1, and has multiple solder joint 11 between described one of them and housing 1 in cylinder 2, upper bearing (metal) 3 and frame 4, and the contiguous suction port 21 of multiple solder joint 11 is arranged.That is, in an alternate exemplary of the present invention, be only that cylinder 2 is soldered to housing 1, have multiple solder joint 11 between cylinder 2 and housing 1, the contiguous suction port 21 of the plurality of solder joint 11 is arranged, as shown in Figure 3.In another alternate exemplary of the present invention, be only that upper bearing (metal) 3 is soldered to housing 1, have multiple solder joint 11 between upper bearing (metal) 3 and housing 1, the contiguous suction port 21 of the plurality of solder joint 11 is arranged, as shown in Figure 2.In another alternate exemplary of the present invention, be only that frame 4 is soldered to housing 1, have multiple solder joint 11 between frame 4 and housing 1, the contiguous suction port 21 of the plurality of solder joint 11 is arranged, as shown in Figure 1.
According to the rotary compressor 100 such as twin-tub rotation-type compressor of the embodiment of the present invention, by arranging solder joint 11 in the position of contiguous suction port 21, reduce the tensile stress that the swelling pressure that are subject to inner surface integral load because of housing 1 produce between suction port 21, improve the compressive strength of housing 1, thus improve the reliability of twin-tub rotation-type compressor, and cost is low.
In one embodiment of the invention, the angle between the line at multiple solder joint 11 and housing 1 center and the central axis of suction port 21 is 25 ° ~ 40 °.As shown in Figure 4, the center of housing 1 is O, angle between the central axis of ON and suction port 21 is 10 °, angle between the central axis of OM and suction port 21 is 85 °, the scope N ~ M(that is 10 ° ~ 85 °) between detect the position of solder joint 11 to the impact of the maximum stress between suction port 21.Particularly, when the position of solder joint 11 between 10 ° ~ 25 °, as can be seen from Figure 5, along with solder joint 11 is gradually away from suction port 21, the maximum stress between suction port 21 reduces gradually.When the position of solder joint 11 between 25 ° ~ 40 °, the change of maximum stress is not obvious, relatively reaches extreme value when the position of solder joint 11 between 25 ° ~ 40 ° is described to the effect of the compressive strength improving housing 1.When the position of solder joint 11 between 40 ° ~ 85 °, along with solder joint 11 and the further increase of the spacing of suction port 21, the maximum stress between suction port 21 roughly linearly increases progressively.In summary, when the position of solder joint 11 between 25 ° ~ 40 °, the compressive strength of housing 1 can relatively farthest be improved.
Further, the angle between the line at multiple solder joint 11 and housing 1 center and the central axis of suction port 21 is 30 ° ~ 35 °.As can be seen from Figure 5, during the position of solder joint 11 between 30 ° ~ 35 °, the maximum stress between suction port 21 is relatively minimum, thus further increases the compressive strength of housing 1.
Alternatively, multiple solder joint 11 is spaced to turn up the soil and is distributed in the both sides of suction port 21.With reference to Fig. 1-Fig. 3, the left and right sides of suction port 21 is distributed with at least one solder joint 11.Thus, by arranging multiple solder joint 11, in frame 4, upper bearing (metal) 3 and cylinder 2 can be welded on the inwall of housing 1 securely.
Further, the multiple solder joints 11 being positioned at suction port 21 the same side are uniformly distributed (scheming not shown) along the circumference of housing 1.That is, the both sides of suction port 21 are respectively equipped with multiple solder joint 11, the multiple solder joints 11 being positioned at suction port 21 the same side (such as the left side shown in Fig. 1-Fig. 3 or right side) are uniformly distributed along the inner circle wall of housing 1, the multiple solder joints 11 being now positioned at suction port 21 the same side are all located in the same horizontal plane, and the distance that two adjacent solder joints 11 are spaced apart from each other is roughly equal.
Further, the multiple solder joints 11 being positioned at suction port 21 the same side are uniformly distributed (scheming not shown) along the axis of housing 1.That is, the both sides of suction port 21 are respectively equipped with multiple solder joint 11, the multiple solder joints 11 being positioned at suction port 21 the same side (such as the left side shown in Fig. 1-Fig. 3 or right side) are spaced apart from each other along the axis of housing 1 inner circle wall, the multiple solder joints 11 being now positioned at suction port 21 the same side are all positioned at same vertical plane, and the distance that two adjacent solder joints 11 are spaced apart from each other is roughly equal.
Alternatively, solder joint 11 is two and two solder joints 11 are symmetrical about the central axis of suction port 21.That is, the angle of two solder joints 11 respectively and between the line at housing 1 center and the central axis of suction port 21 is roughly equal, thus improves the compressive strength of welding efficiency and housing 1.
The rotary compressor according to the multiple embodiment of the present invention is specifically described below with reference to Fig. 1-Fig. 3.
Embodiment one,
In the present embodiment, as shown in Figure 1, rotary compressor 100 is twin-tub rotation-type compressor, frame 4 is located at the top of two cylinders 2, the cylinder 2 being positioned at top is connected to housing 1 by frame 4, and particularly, the cylinder 2 such as bolt that can be threaded with frame 4 links into an integrated entity, frame 4 is linked into an integrated entity by the mode of welding and housing 1, and the left and right sides now above suction port 21 is respectively equipped with a solder joint 11.
Embodiment two,
In the present embodiment, as shown in Figure 2, rotary compressor 100 is twin-tub rotation-type compressor, upper bearing (metal) 3 is located at the top of two cylinders 2, upper bearing (metal) 3 is linked into an integrated entity by the mode of welding and housing 1, now have two solder joints 11 between upper bearing (metal) 3 and housing 1 respectively, these two solder joints 11 are located at the top of top cylinder 2, and lay respectively at the left and right sides of suction port 21.
Embodiment three,
In the present embodiment, as shown in Figure 3, rotary compressor 100 is single cylinder rotary compressor, and cylinder 2 is linked into an integrated entity by the mode of welding and housing 1, now have two solder joints 11 between cylinder 2 and housing 1 respectively, these two solder joints 11 lay respectively at the left and right sides of suction port 21.
According to the rotary compressor 100 of the embodiment of the present invention other form and operation be all known to those skilled in the art, be not described in detail here.
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 invention 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 describe embodiments of the invention, 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 invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (8)
1. a rotary compressor, is characterized in that, comprising:
Housing;
Cylinder, described cylinder is located in described housing, and described cylinder is formed with suction port;
Upper bearing (metal), described upper bearing (metal) is located at the top of described cylinder; And
Frame, described frame is positioned at the top of described cylinder, and in described cylinder, described upper bearing (metal) and described frame one is soldered to described housing, have multiple solder joint between described one and described housing in wherein said cylinder, described upper bearing (metal) and described frame, the contiguous described suction port of described multiple solder joint is arranged.
2. rotary compressor according to claim 1, is characterized in that, the angle between the line of multiple described solder joint and described casing center and the central axis of described suction port is 25 ° ~ 40 °.
3. rotary compressor according to claim 2, is characterized in that, the angle between the line of multiple described solder joint and described casing center and the central axis of described suction port is 30 ° ~ 35 °.
4. rotary compressor according to claim 2, is characterized in that, multiple described solder joint is spaced to turn up the soil and is distributed in the both sides of described suction port.
5. rotary compressor according to claim 4, is characterized in that, the described multiple solder joint being positioned at described suction port the same side is uniformly distributed along the circumference of described housing.
6. rotary compressor according to claim 4, is characterized in that, the described multiple solder joint being positioned at described suction port the same side is uniformly distributed along the axis of described housing.
7. rotary compressor according to claim 4, is characterized in that, described solder joint is two and described two solder joints are symmetrical about the central axis of described suction port.
8. the rotary compressor according to any one of claim 1-7, is characterized in that, described rotary compressor is twin-tub rotation-type compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310309762.5A CN103511277B (en) | 2013-07-22 | 2013-07-22 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310309762.5A CN103511277B (en) | 2013-07-22 | 2013-07-22 | Rotary compressor |
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| Publication Number | Publication Date |
|---|---|
| CN103511277A CN103511277A (en) | 2014-01-15 |
| CN103511277B true CN103511277B (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310309762.5A Active CN103511277B (en) | 2013-07-22 | 2013-07-22 | Rotary compressor |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269535A (en) * | 2017-07-18 | 2017-10-20 | 广东美芝制冷设备有限公司 | Housing ruggedized construction and rotary compressor |
| CN109424515B (en) * | 2017-09-05 | 2020-12-08 | 上海海立电器有限公司 | Compressor and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510284A (en) * | 2002-12-25 | 2004-07-07 | 乐金电子(天津)电器有限公司 | Inspiration structure of rotary compressor |
| JP3939191B2 (en) * | 2002-04-23 | 2007-07-04 | 三洋電機株式会社 | Compressor |
| CN202732344U (en) * | 2012-05-28 | 2013-02-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body fixing component of rotary double-cylinder compressor, and rotary double-cylinder compressor |
| CN203404093U (en) * | 2013-07-22 | 2014-01-22 | 广东美芝制冷设备有限公司 | Rotary compressor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0979161A (en) * | 1995-09-12 | 1997-03-25 | Toshiba Corp | Rotary compressor |
| KR20060035011A (en) * | 2004-10-20 | 2006-04-26 | 엘지전자 주식회사 | A suction tube connecting structure of rotary compressor |
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2013
- 2013-07-22 CN CN201310309762.5A patent/CN103511277B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3939191B2 (en) * | 2002-04-23 | 2007-07-04 | 三洋電機株式会社 | Compressor |
| CN1510284A (en) * | 2002-12-25 | 2004-07-07 | 乐金电子(天津)电器有限公司 | Inspiration structure of rotary compressor |
| CN202732344U (en) * | 2012-05-28 | 2013-02-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body fixing component of rotary double-cylinder compressor, and rotary double-cylinder compressor |
| CN203404093U (en) * | 2013-07-22 | 2014-01-22 | 广东美芝制冷设备有限公司 | Rotary compressor |
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| CN103511277A (en) | 2014-01-15 |
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