CN203321823U - Scroll compressor with novel exhaust port structure and exhaust valve assembly - Google Patents
Scroll compressor with novel exhaust port structure and exhaust valve assembly Download PDFInfo
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- CN203321823U CN203321823U CN2013203240258U CN201320324025U CN203321823U CN 203321823 U CN203321823 U CN 203321823U CN 2013203240258 U CN2013203240258 U CN 2013203240258U CN 201320324025 U CN201320324025 U CN 201320324025U CN 203321823 U CN203321823 U CN 203321823U
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Abstract
The utility model discloses a scroll compressor with a novel exhaust port structure and an exhaust valve assembly. The scroll compressor comprises a shell, an air inlet pipe, an air outlet pipe, a motor, a rotor shaft assembly and a scroll plate assembly, wherein an exhaust port is formed on the scroll plate assembly, a groove is formed on the upper surface of the scroll plate assembly which is positioned around the exhaust port, the groove is formed facing towards the bottom of the exhaust port, a strip-shaped valve sheet which covers the exhaust port is further paved in the groove, one end of the valve sheet is fixedly connected with the upper surface of the scroll plate assembly, the valve sheet is also provided with a limiting board with an arc-shaped lower surface, and the other end of the valve sheet vertically oscillates between the upper surface and the arc-shaped lower surface of the scroll plate assembly when the exhaust port starts and stops exhausting. According to the scroll compressor, and the exhaust port structure and the exhaust valve assembly are optimized, the clearance volume can be reduced, so that the running efficiency of the compressor in high compression ratio and the off response speed of the compressor can be increased, and the manufacture and usage cost can be lowered.
Description
Technical field
The utility model relates to a kind of scroll compressor, particularly a kind of scroll compressor with novel exhaust mouth structure and exhaust valve component.
Background technique
The scroll compressor of refrigeration is widely used in the industry-by-industry of national life.Along with the development of economy and technology, common scroll compressor, except being applied to refrigerating and air conditioning industry, also is applied in cryogenic freezing more and more widely, and in the industry such as heat pump water heater.Cryogenic freezing and heat pump water heater be owing to often having broader application area and the application characteristic of high compression ratio more, thereby Security, stability and the operational efficiency of compressor are had higher requirement.In the application of the industries such as cryogenic freezing and heat-pump hot-water, may have higher compression ratio, under some applicable cases, scroll compression than even reach 20 or more than.And the design of conventional vortex is limited to discharge capacity, processing and cost etc. are very difficult to be reached so large compression ratio and designs.Therefore, the common way of prior art is, at the exhaust outlet of compressor place of high compression ratio design, the reed outlet valve that is similar to piston compressor on a structure is installed.
Being equipped with of reed outlet valve helps to improve the performance of the compressor high compression ratio of scroll compressor, but the mounting point difference of outlet valve, the vortex relief opening that it causes is that clearance volume is also different from the volume between outlet valve, in theory under identical valve block aperture and valve block rigidity condition, clearance volume is less, and the exhaust pressure loss is also just less.On the contrary, if the clearance volume existed between vortex relief opening and outlet valve is larger, exhaust pressure loss is also just larger, thereby can affect the operational efficiency of compressor when high compression ratio and cause the speed of compressor shutdown slack-off.Therefore, in order to reduce the loss of exhaust pressure, improve the operational efficiency of compressor and close motor speed, should reduce the clearance volume of relief opening as far as possible.
The Chinese patent that publication number is CN202926627 discloses a kind of scroll compressor, the outlet valve of this scroll compressor has been arranged on the top of scroll relief opening, mounting plane and the distance of determining between the volution blade bottom surface are larger, thereby cause the volume of exhaust port larger, when under-voltage contracting operating mode, the clearance volume caused thus will reduce compression efficiency and increase power consumption, cause delivery temperature high, in the time of compressor shutdown simultaneously, because this part pressurized gas will promote the scroll counterrotating, the speed of shutdown also will be affected.
The Chinese patent that publication number is CN1495361 discloses a kind of scroll machine with expulsion valve, the outlet valve of this scroll machine is arranged in a groove of scroll exhaust passage, can reduce to a certain extent the clearance volume of exhaust, in order to make the opening state of expulsion valve maintenance and exhaust port, open the needed thrust of expulsion valve with elimination, eliminate simultaneously and close the needed any mechanical structure of expulsion valve, its bottom at groove arranges a valve seat with cave groove, and valve plate is arranged on this valve seat.But, under the condition that is added in identical scroll relief opening wall thickness of valve seat, make valve plate strengthen to the distance of relief opening bottom, increased to a certain extent the clearance volume of relief opening, to compressor, the operational efficiency when the high compression ratio and the speed of response of shutdown have still formed unfavorable factor for this, and its structure is comparatively complicated, and manufacturing cost and use cost is all higher.
The model utility content
The purpose of this utility model is exactly for the problems referred to above, provide a kind of and can at utmost reduce clearance volume, thereby improve the operational efficiency of compressor when high compression ratio and the speed of response of shutdown, and manufacturing cost and use cost lower scroll compressor with novel exhaust mouth structure and exhaust valve component all.
To achieve these goals, the utility model provides following technological scheme: the scroll compressor with novel exhaust mouth structure and exhaust valve component, comprise housing, suction tude, steam outlet pipe, motor, rotor shaft assembly and scroll assembly, offer relief opening on this scroll assembly, the upper surface that is positioned at this relief opening above-mentioned scroll assembly on every side offers a groove, this groove is offered towards the bottom of above-mentioned relief opening, also be equipped with above-mentioned relief opening and the elongated valve block of a covering in this groove, one end of this valve block is fixedly connected with the upper surface of above-mentioned scroll assembly, also be provided with a limiting board with arc lower surface on this valve block, above-mentioned relief opening starts and while stopping exhaust, the other end of this valve block swings up and down between the upper surface of above-mentioned scroll assembly and above-mentioned arc lower surface.
Further, above-mentioned groove comprises wide head and narrow head, the wide head of this groove is offered around above-mentioned relief opening, the narrow head of this groove stretches out and is opened in the upper surface of above-mentioned scroll assembly from wide head one side margin of above-mentioned groove, the shape of above-mentioned valve block and this groove are complementary, the narrow head of this valve block is fixedly connected with the upper surface of above-mentioned scroll assembly, and the wide head of this valve block swings up and down between the upper surface of scroll assembly and arc lower surface.
Again further, the area of the wide head of above-mentioned groove is greater than the area of above-mentioned relief opening, and extends internally and form projection with respect to the opposite side edge of the wide head of this groove of the narrow head of above-mentioned groove.
Further, the shape of above-mentioned limiting board and the shape of above-mentioned valve block are complementary, and the narrow head of this limiting board forms transition from thick to thin on thickness to the wide head of this limiting board, forms above-mentioned arc lower surface.
Further, together with the narrow head of the narrow head of above-mentioned limiting board and above-mentioned valve block, with the upper surface of above-mentioned scroll assembly, be fixedly connected with.
Further, the narrow head of above-mentioned limiting board extends to form two flank section to both sides, the narrow head of this limiting board is fixedly connected with the upper surface of above-mentioned scroll assembly by this two flank section, and the narrow head of above-mentioned valve block is pressed in the upper surface of this scroll assembly by the narrow head of this two flank section and limiting board.
Further, also offer the second groove in above-mentioned groove, this second groove is offered towards the bottom direction of above-mentioned relief opening.
Adopt the beneficial effect of above technological scheme to be: the utility model is offered groove around the relief opening of scroll assembly, valve block directly is layed in groove and covers relief opening, relief opening starts and while stopping exhaust, and valve block swings up and down between the arc lower surface of the upper surface of scroll assembly and limiting board; With CN202926627, compare, when guaranteeing identical design strength, the mounting point of valve block moves into downwards in groove from the top of relief opening, and valve plate is significantly dwindled to the distance of relief opening bottom, thereby clearance volume is also dwindled; With CN1495361, compare, equally when guaranteeing identical design strength, the utility model has been abandoned its complicated structure setting, groove, valve block and limiting board only are set, form exhaust outlet structure and exhaust valve component after optimizing, the location feature of groove has reduced the complexity of installing, particularly abandoned original valve seat, shortened the distance of valve block to the relief opening bottom in simplified structure, obtain less relief opening volume than the prior art, thereby reduced equally clearance volume, and made structure more simple; From foregoing description, can see, the volume of the relief opening in the utility model and its clearance volume have all obtained dwindling with respect to prior art, and then improved the operational efficiency of compressor when high compression ratio and the speed of response of shutdown, and it is simple in structure, and manufacturing cost and use cost is all lower.
The accompanying drawing explanation
Fig. 1 is the structural representation with scroll compressor of novel exhaust mouth structure and exhaust valve component of the present utility model.
Fig. 2 is structural representation Fig. 1 of the related novel exhaust mouth structure of the utility model and exhaust valve component.
Fig. 3 is structural representation Fig. 2 of the related novel exhaust mouth structure of the utility model and exhaust valve component.
Fig. 4 is structural representation Fig. 3 of the related novel exhaust mouth structure of the utility model and exhaust valve component.
Wherein, 1. narrow head 523. arc lower surface 524. flank section 53. screws of the narrow head of the wide head 422. of the housing 2. motor 3. rotor shaft assembly 4. scroll assembly 41. relief opening 42. groove 421. 423. projection wide head 522. of narrow head 52. limiting board 521. of the wide head 512. of 424. second groove 51. valve block 511..
Embodiment
Describe preferred implementation of the present utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1, the scroll compressor with novel exhaust mouth structure and exhaust valve component in the present embodiment comprises housing 1, motor 2, rotor shaft assembly 3 and scroll assembly 4, also should comprise other elements that existing scroll compressor should possess, as suction tude and steam outlet pipe etc., this is no longer going to repeat them and illustrate.As Figure 1-3, offer relief opening 41 on scroll assembly 4, the upper surface that is positioned at relief opening 41 scroll assembly 4 on every side offers a groove 42, groove 42 is offered towards the bottom of relief opening 41, also be equipped with a valve block 51 covering relief opening 41 and elongated in groove 42, one end of valve block 51 is fixedly connected with the upper surface of scroll assembly 4, can be specifically to be fixedly connected with mode by being spirally connected etc. to be connected, also be provided with a limiting board 52 with arc lower surface 523 on valve block 51, relief opening 41 starts and while stopping exhaust, the other end of valve block 51 swings up and down between the upper surface of scroll assembly 4 and arc lower surface 523.This scroll compressor is being offered groove 42 around relief opening 41, valve block 51 directly is layed in groove 42 and covers relief opening 41, relief opening 41 starts and while stopping exhaust, and valve block 51 swings up and down between the arc lower surface 523 of the upper surface of scroll assembly 4 and limiting board 52; Compared with prior art, this scroll compressor is when guaranteeing identical design strength, and the mounting point of valve block moves into downwards in groove from the top of relief opening, and valve plate is significantly dwindled to the distance of relief opening bottom, thereby clearance volume is also dwindled; And this scroll compression has been abandoned the structure setting that prior art comprises the complexity of valve seat etc., groove 42, valve block 51 and limiting board 52 only are set, form exhaust outlet structure and exhaust valve component after optimizing, the location feature of groove 42 has reduced the complexity of installing, particularly abandoned original valve seat, shortened the distance of valve block 51 to relief opening 41 bottoms in simplified structure, obtain the volume of less relief opening 41 than prior art, thereby reduced equally clearance volume, and made structure more simple; From foregoing description, can see, the volume of the relief opening 41 in this scroll compressor and its clearance volume have all obtained dwindling with respect to prior art, and then the operational efficiency of compressor when high compression ratio and the speed of response of shutdown have been improved, and it is simple in structure, manufacturing cost and use cost is all lower.
As Figure 2-3, above-mentioned groove 42 can comprise wide head 421 and narrow head 422, wide head 421 is offered around relief opening 421, narrow head 422 leniently head 421 1 side margin stretches out and is opened in the upper surface of scroll assembly 4, the shape of valve block 51 and groove 42 are complementary, the narrow head 512 of valve block 51 is fixedly connected with the upper surface of scroll assembly 4, can be specifically to be fixedly connected with mode by being spirally connected etc. to be connected, the wide head 511 of valve block 51 swings up and down between the upper surface of scroll assembly 4 and arc lower surface 523.
Continue as Figure 2-3, the area of above-mentioned wide head 421 can be greater than the area of relief opening 41, and can extend internally and form projection 423 with respect to the opposite side edge of this wide head 421 of narrow head 421.Adding of this projection 423, than originally there is no projection or being designed to counterbore shape, it can effectively reduce the flowing pressure loss of relief opening 41.If the shape that relief opening 41 and groove 42 are the circle shown in Fig. 3 or approximate circle, projection 423 preferably is designed to the crescent shape shown in figure, certainly also should change protruding shape according to relief opening and the groove of other shapes.
Continue as Figure 2-3, the shape of above-mentioned limiting board 52 and the shape of valve block 51 are complementary, and its narrow head 522 forms transition from thick to thin on thickness to wide head 521, forms arc lower surface 523.
Continue as Figure 2-3, the narrow head 522 of above-mentioned limiting board 52 is fixedly connected with the upper surface of scroll assembly 4 together with the narrow head 512 of valve block 51.
Continue as Figure 2-3, the narrow head 522 of above-mentioned limiting board 52 extends to form two flank section 524 to both sides, this narrow head 522 is fixedly connected with the upper surface of scroll assembly 4 by this two flank section 524, by screw 53 or other links, connected, the narrow head 512 of valve block 51 is pressed in the upper surface of this scroll assembly 4 by the narrow head 522 of this two flank section 524 and limiting board 52.The installation and removal that add the exhaust valve component of can being more convenient for of flank section 524.
As shown in Figure 4, above-mentioned groove 42 is interior can also offer the second groove 424, and this second groove 424 is offered towards the bottom direction of relief opening 41 equally, and around relief opening 41.Groove 424 can strengthen the area of contact of valve block 51 and relief opening 41 gas out, the opening of power-assisted valve block 51.
Below introduce working procedure:
During compressor operating, gas in relief opening 41 is discharged, the valve block 51 promoted in groove 42 is upwards movable, the limiting board 52 of valve block 51 tops is from the upper and lower stroke of top restriction valve block 51, after relief opening stops exhaust, valve block 51 is got back to initial position gradually, again seal relief opening 41, wherein, the novel relief opening of this scroll compressor and the design of outlet valve can utilize dwindling of its volume to relief opening 41, reach the purpose of dwindling clearance volume, thereby improve the operational efficiency of compressor when high compression ratio and the speed of response of shutdown.
Above-described is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (7)
1. the scroll compressor that there is novel exhaust mouth structure and exhaust valve component, comprise housing, suction tude, steam outlet pipe, motor, rotor shaft assembly and scroll assembly, offer relief opening on described scroll assembly, it is characterized in that: the upper surface that is positioned at described relief opening described scroll assembly on every side offers a groove, described groove is offered towards the bottom of described relief opening, also be equipped with described relief opening and the elongated valve block of a covering in described groove, one end of described valve block is fixedly connected with the upper surface of described scroll assembly, also be provided with a limiting board with arc lower surface on described valve block, described relief opening starts and while stopping exhaust, the other end of described valve block swings up and down between the upper surface of described scroll assembly and described arc lower surface.
2. scroll compressor according to claim 1, it is characterized in that: described groove comprises wide head and narrow head, the wide head of described groove is offered around described relief opening, the narrow head of described groove stretches out and is opened in the upper surface of described scroll assembly from wide head one side margin of described groove, the shape of described valve block and described groove are complementary, the narrow head of described valve block is fixedly connected with the upper surface of described scroll assembly, and the wide head of described valve block swings up and down between the upper surface of described scroll assembly and described arc lower surface.
3. scroll compressor according to claim 2, it is characterized in that: the area of the wide head of described groove is greater than the area of described relief opening, and extends internally and form projection with respect to the opposite side edge of the wide head of the described groove of the narrow head of described groove.
4. according to the described scroll compressor of claim 2 or 3, it is characterized in that: the shape of described limiting board and the shape of described valve block are complementary, the narrow head of described limiting board forms transition from thick to thin on thickness to the wide head of described limiting board, forms described arc lower surface.
5. scroll compressor according to claim 4, it is characterized in that: the narrow head of described limiting board is fixedly connected with the upper surface of described scroll assembly together with the narrow head of described valve block.
6. scroll compressor according to claim 5, it is characterized in that: the narrow head of described limiting board extends to form two flank section to both sides, the narrow head of described limiting board is fixedly connected with the upper surface of described scroll assembly by described two flank section, and the narrow head of described valve block is pressed in the upper surface of described scroll assembly by the narrow head of described two flank section and described limiting board.
7. scroll compressor according to claim 1, it is characterized in that: also offer the second groove in described groove, described the second groove is offered towards the bottom direction of described relief opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203240258U CN203321823U (en) | 2013-06-06 | 2013-06-06 | Scroll compressor with novel exhaust port structure and exhaust valve assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203240258U CN203321823U (en) | 2013-06-06 | 2013-06-06 | Scroll compressor with novel exhaust port structure and exhaust valve assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203321823U true CN203321823U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203240258U Expired - Fee Related CN203321823U (en) | 2013-06-06 | 2013-06-06 | Scroll compressor with novel exhaust port structure and exhaust valve assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203321823U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267017B (en) * | 2013-06-06 | 2016-07-06 | 苏州英华特涡旋技术有限公司 | There is the screw compressor of novel exhaust mouth structure and exhaust valve component |
| CN105899808A (en) * | 2014-01-08 | 2016-08-24 | 三菱电机株式会社 | Rotary compressor |
-
2013
- 2013-06-06 CN CN2013203240258U patent/CN203321823U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267017B (en) * | 2013-06-06 | 2016-07-06 | 苏州英华特涡旋技术有限公司 | There is the screw compressor of novel exhaust mouth structure and exhaust valve component |
| CN105899808A (en) * | 2014-01-08 | 2016-08-24 | 三菱电机株式会社 | Rotary compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20140606 |