CN201221471Y - Rotary compressor air suction part structure - Google Patents
Rotary compressor air suction part structure Download PDFInfo
- Publication number
- CN201221471Y CN201221471Y CNU2008200873900U CN200820087390U CN201221471Y CN 201221471 Y CN201221471 Y CN 201221471Y CN U2008200873900 U CNU2008200873900 U CN U2008200873900U CN 200820087390 U CN200820087390 U CN 200820087390U CN 201221471 Y CN201221471 Y CN 201221471Y
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- China
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- air suction
- bending tube
- cylinder
- rotary compressor
- intake passage
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- Expired - Fee Related
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Abstract
The utility model discloses the structure of an air suction part for a rotary compressor, comprising a connecting pipe and an air suction elbow pipe, and the connecting pipe comprises an externally connected pipe. The air suction elbow pipe is arranged in the internal cavity of the externally connected pipe, and extended into the air suction channel on the cylinder; tight coupling is adopted between the air suction elbow pipe and the inner surface of the air suction channel on the cylinder; and the air suction elbow pipe is connected with the externally connected pipe. As the air suction pipe is directly extended into the air suction channel on the cylinder and tight coupling is adopted between the inner wall of the air suction channel and the air suction elbow pipe, impurities are prevented from being sucked into the air suction channel; in addition, the structure of the air suction part is simpler and the installation is more convenient.
Description
Technical field
The utility model relates to the suction unit structure of a kind of rotary compressor, particularly rotary compressor.
Background technique
Rotary compressor is by being installed in the eccentric shaft rotation that the band heart turns in the cylinder, the rotating center of eccentric shaft overlaps with the center of circle of cylinder bore, piston is installed in off-centre and turns, turn concentric with off-centre, make that outer surface of piston and cylinder surfaces are tangent, the slide plate that is installed in the cylinder groove is divided into two parts with cylinder, and refrigerant is sucked and compression.Its structure mainly comprises press part, motor driving part, seal container portion and vapor-liquid separator composition.The closed container portion of rotary compressor mainly comprises: the main casing of fixed electrical machinery stator and main bearing, loam cake and lower cover.Main casing both ends open wherein, the appropriate location, side is provided with suction port and is welded with connecting tube, lower cover connects firmly by welding manner and main casing lower end, and loam cake also connects firmly by welding manner and main casing upper end, is provided with relief opening and is welded with the exhaust pipe fitting in the loam cake appropriate location.Vapor-liquid separator comprises that mainly the housing of gas-liquid separator, gas flow into pipe fitting, filter screen, straight tube and air suction bending tube.The housing of vapor-liquid separator connects firmly and is fastened on the support with shroud ring by the mode of welding and the main casing of closed container device, and the upper end gas inflow entrance of gas-liquid separator is welded with gas and flows into pipe fitting; Filter screen is installed in the housing inner chamber, the dirt of bringing into when filtering gas flows into, impurity etc.; Be provided with the straight tube of certain-length in the container, an end of air suction bending tube links to each other with suction port and connecting tube on the closed container portion main casing, and the other end then is connected with the straight tube of vapor-liquid separator inner chamber.
The structure at the air-breathing position between vapor-liquid separator and the seal container such as figure two, it comprises: described connecting tube comprises externally connected pipe and inner connecting tube, externally connected pipe links to each other with seal container portion main casing intakeport, and inner connecting tube is arranged on the inside of externally connected pipe, links to each other with air intake passage on the cylinder; Expand tube is pushed into the inside of inner connecting tube, and inner connecting tube swollen makes its outer surface be close to the inner connecting tube internal surface to realize sealing; After air suction bending tube inserts inner connecting tube, air suction bending tube, inner connecting tube and externally connected pipe are welded the fixing weld part that forms simultaneously.
There are the following problems for this rotary compressor suction unit structure: when welding air suction bending tube, inner connecting tube and externally connected pipe, impurity and welding slag can enter cylinder suction port inside by the welding slit, assembly process is many simultaneously, need three process: press inner connecting tube, press expand tube, weldering air suction bending tube, inner connecting tube and externally connected pipe are easy to bring impurity into cylinder suction port inside like this.
Summary of the invention
The purpose of this utility model be to overcome the deficiencies in the prior art part and provide a kind of simple in structure, easy for installation, can prevent that impurity from entering the suction unit structure of the rotary compressor of compressor compresses portion.
The purpose of this utility model is achieved by the following scheme:
A kind of suction unit structure of rotary compressor, it comprises connecting tube and air suction bending tube, described connecting tube comprises externally connected pipe, its structural feature is: described air suction bending tube is arranged at the inner chamber of externally connected pipe, and extend in the air intake passage on the cylinder, for being tightly connected, described air suction bending tube is connected with externally connected pipe between the internal surface of the air intake passage on air suction bending tube and the cylinder.
Directly air suction bending tube is extended in the air intake passage on the cylinder, and make between the inwall of air intake passage and the air suction bending tube and be tightly connected, so just can prevent that various impurity from entering air intake passage.
Being connected between described air suction bending tube and the externally connected pipe can be adopted conventional fixed connection, or also is a kind of being tightly connected between the two, or a kind of fixed being tightly connected.
Between air intake passage on the cylinder and the air suction bending tube be tightly connected or for adopting with the interference fit between air intake passage and the air suction bending tube.
Being tightly connected between air intake passage on the described cylinder and the air suction bending tube can also be between air intake passage on the cylinder and air suction bending tube Sealing to be set to be connected and sealed.
Described Sealing or be seal ring, Sealing shield ring, seal ring, Sealing shield ring embed respectively in air intake passage on the cylinder, the air suction bending tube, to realize being sealed and matched of seal ring, Sealing shield ring and air intake passage, air suction bending tube.
Being fixedly connected as between described externally connected pipe and the air suction bending tube: adopt fixedlying connected of welding type between that end outside externally connected pipe exposes to the seal container main casing and the air suction bending tube.
Being fixedly connected as between described externally connected pipe and the air suction bending tube adopted the fixed seal connection of welding type between that end outside externally connected pipe exposes to the seal container main casing and the air suction bending tube.
Air intake passage on the described cylinder is the step type suction port on the cylinder.
Described externally connected pipe is connected with rotary compressor seal container portion main casing intakeport.
In sum, advantage of the present utility model is:
Because the utility model has adopted simple structure, directly air suction bending tube is tightly connected mutually with air intake passage on the cylinder, thereby changed prior art in adopting, it is loaded down with trivial details that externally connected pipe and expand tube connect the installation procedure that is brought, and owing to only rely on welding fixing between air suction bending tube and the inner connecting tube, except that soldering point, there is the gap between the two, simultaneously air suction bending tube again directly with the air intake passage of cylinder be conducted brought easily with impurity such as welding slag introducing cylinder, influence the life-span of cylinder, and the utility model is owing to be tightly connected air suction bending tube mutually with air intake passage on the cylinder, so can prevent that welding slag from flowing into cylinder by air suction bending tube.
Description of drawings
Fig. 1 is the structure sectional view of conventional rotary compressor;
Fig. 2 is the structure cutaway view Amplified image of conventional rotary compressor suction unit;
Fig. 3 is the structure enlarged view of the utility model rotary compressor suction unit.
Label declaration: 21-cylinder, the step hole on the 22-cylinder, the air intake passage of 23-cylinder, 30-seal container portion, 31-main casing, 44-air suction bending tube, 45-externally connected pipe, 46 weld parts.
Embodiment
Below in conjunction with embodiment the utility model is described in more detail.
Embodiment 1:
A kind of suction unit structure of rotary compressor as shown in Figure 3, it comprises connecting tube and air suction bending tube.Connecting tube comprises externally connected pipe 45.Externally connected pipe 45 connects firmly on seal container 30 main casings 31 with intakeport on the main casing and links to each other, the less air suction bending tube 44 in end inserts in the externally connected pipe 45 together with vapor-liquid separator 40, and push in the cylinder air intake passage 23 in the macropore 22 of radial suction step hole on the cylinder 21, be interference fit between the macropore 22 of air suction bending tube 44 and the air-breathing step hole of cylinder, being tightly connected of the internal surface of assurance air suction bending tube 44 outer surfaces and air-breathing step hole macropore 22, air suction bending tube 44 and externally connected pipe 45 are exposed between those outer ends of seal container 30 main casings 31 fixedly connected, form weld part 46 and seal for welding type.
It is same as the prior art that present embodiment is not stated part.
Claims (9)
1. rotary compressor suction unit structure, it comprises connecting tube and air suction bending tube (44), described connecting tube comprises externally connected pipe (45), it is characterized in that: described air suction bending tube is arranged at the inner chamber of externally connected pipe, and extend in the air intake passage on the cylinder (21), for being tightly connected, described air suction bending tube is connected with externally connected pipe between the internal surface of the air intake passage on air suction bending tube and the cylinder (23).
2. rotary compressor suction unit structure according to claim 1 is characterized in that: being tightly connected between air intake passage on the cylinder and the air suction bending tube is the interference fit between air intake passage and the air suction bending tube.
3. rotary compressor suction unit structure according to claim 1 is characterized in that: being tightly connected between air intake passage on the described cylinder and the air suction bending tube is connected and sealed between air intake passage on the cylinder and the air suction bending tube Sealing being set.
4. rotary compressor suction unit structure according to claim 3, it is characterized in that: described Sealing or for seal ring or for Sealing shield ring, seal ring, Sealing shield ring embed respectively in air intake passage on the cylinder, the air suction bending tube, to realize being sealed and matched of seal ring, Sealing shield ring and air intake passage, air suction bending tube.
5. according to claim 2 or 4 described rotary compressor suction unit structures, it is characterized in that: being connected or fixed connection between described air suction bending tube and the externally connected pipe, or between the two for being tightly connected, or fixed being tightly connected.
6. rotary compressor suction unit structure according to claim 5, it is characterized in that: adopt fixedlying connected of welding type between being fixedly connected as between described externally connected pipe and the air suction bending tube, that end outside externally connected pipe exposes to the seal container main casing and air suction bending tube.
7. rotary compressor suction unit structure according to claim 5, it is characterized in that: being fixedly connected as between described externally connected pipe and the air suction bending tube, adopt the fixed seal connection of welding type between that end outside externally connected pipe exposes to the seal container main casing and the air suction bending tube.
8. rotary compressor suction unit structure according to claim 1 is characterized in that: the air intake passage on the described cylinder is the step type suction port (22) on the cylinder.
9. rotary compressor suction unit structure according to claim 1 is characterized in that: described externally connected pipe is connected with rotary compressor seal container portion main casing intakeport.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200873900U CN201221471Y (en) | 2008-05-22 | 2008-05-22 | Rotary compressor air suction part structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200873900U CN201221471Y (en) | 2008-05-22 | 2008-05-22 | Rotary compressor air suction part structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201221471Y true CN201221471Y (en) | 2009-04-15 |
Family
ID=40574979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200873900U Expired - Fee Related CN201221471Y (en) | 2008-05-22 | 2008-05-22 | Rotary compressor air suction part structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201221471Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477919A (en) * | 2017-08-14 | 2017-12-15 | 嵊州市新高轮制冷设备有限公司 | The Hermetical connecting structure of a kind of reservoir and compressor and connection method |
| CN112682294A (en) * | 2020-12-28 | 2021-04-20 | 大丰全力机械有限公司 | Compressor air suction part structure and compressor |
-
2008
- 2008-05-22 CN CNU2008200873900U patent/CN201221471Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477919A (en) * | 2017-08-14 | 2017-12-15 | 嵊州市新高轮制冷设备有限公司 | The Hermetical connecting structure of a kind of reservoir and compressor and connection method |
| CN107477919B (en) * | 2017-08-14 | 2018-07-27 | 嵊州市新高轮制冷设备有限公司 | A kind of Hermetical connecting structure and the connection method of liquid storage device and compressor |
| CN112682294A (en) * | 2020-12-28 | 2021-04-20 | 大丰全力机械有限公司 | Compressor air suction part structure and 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: 20090415 Termination date: 20170522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |