CN101294565A - Scroll compressor with stop structure to preventing sliding block moving - Google Patents
Scroll compressor with stop structure to preventing sliding block moving Download PDFInfo
- Publication number
- CN101294565A CN101294565A CNA2007101009319A CN200710100931A CN101294565A CN 101294565 A CN101294565 A CN 101294565A CN A2007101009319 A CNA2007101009319 A CN A2007101009319A CN 200710100931 A CN200710100931 A CN 200710100931A CN 101294565 A CN101294565 A CN 101294565A
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- cam pin
- slide block
- scroll
- scroll compressor
- sleeve
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Abstract
The invention relates to a scroll compressor, which is provided with a stopping component on an eccentric pin so as to selectively joint a concave port inside a slide block and prevent the slide block from moving upwards and contacting and revolving the rear surface of a scroll body. The scroll compressor avoids unexpected contact and the abrasion followed.
Description
Technical field
The present invention relates to a kind of scroll compressor with slide block, the cam pin of this slide block origin self-powered moving axis drives, and wherein, has chocking construction on cam pin, in case the rear surface that limited slip block moves up and exceeds cam pin and contact the vortex body that rotates.
Background technique
Scroll compressor has been widely used in the refrigeration agent compression applications.In scroll compressor, first scroll element has pedestal and by the common screw type scroll wrap of its base extension.Second scroll element has pedestal and by the common screw type scroll wrap of its base extension.Described common screw type scroll wrap interfix assembling (interfit) is to limit compression chamber.Make one of two scroll elements with respect to another rotate (orbit), the volume of compression chamber reduces and the fluid brought into is compressed when it rotates.
In one type scroll compressor, be used to order about the driving mechanism that scroll element rotates and comprise the live axle that is driven rotation (rotate), this live axle has the cam pin that extends upwardly in the slide block.This slide block is accepted in the sleeve that extends backward in the vortex body that rotates.Cam pin drives the vortex body that rotates by slide block.The one side that this class scroll compressor is paid close attention to is that slide block moves up sometimes and contacts with the pedestal rear surface of the vortex body that rotates.This can cause undesirable wearing and tearing.
Proposed to improve as follows slide block, that is: be provided with projection or other structures in the upper space of slide block,, but adopted prior art still can have wearing and tearing so that slide block reduces to minimum with the area of the contact surface of the vortex body pedestal that rotates.
Summary of the invention
In disclosed embodiment of this invention, chocking construction is set on cam pin.This chocking construction stops slide block to move up and contacts the vortex body that rotates.In one embodiment, this chocking construction is the top that enlarges a little of cam pin, and it is assemblied in the interior recess of slide block.Though both are not contact in most of the cases, if slide block begins to move straight up, slide block will contact retainer, and retainer will stop slide block to be moved further.In one embodiment, the outside dimensions of the cam pin at retainer place is less than the Inner Dimension in the hole of running through whole slide block.This helps slide block is assembled on the cam pin.
Can better understand above-mentioned feature of the present invention and other features by following detailed description and accompanying drawing, below be brief description of drawings.
Description of drawings
Accompanying drawing 1A is depicted as the scroll compressor of prior art.
Accompanying drawing 1B is depicted as another parts of the scroll compressor of prior art.
Accompanying drawing 1C is depicted as another parts of the scroll compressor of prior art.
Accompanying drawing 2A is depicted as scroll compressor of the present invention.
Accompanying drawing 2B is depicted as the top view of a part of the present invention.
Embodiment
It shown in the accompanying drawing 1 the known scroll compressor of prior art 20.The non-vortex body 22 that rotates has the screw type scroll wrap 23 from base extension.The vortex body 24 that rotates has a screw type scroll wrap 25 of extending from its pedestal 27.The vortex body 24 that rotates further has sleeve 26, and this sleeve 26 extends away from its pedestal 27 in the direction opposite with scroll wrap 25.
Be compressed in the compression chamber that refrigeration agent limits between scroll wrap 23 and 25, and be transported to exhaust port 28.Refrigeration agent enters compressor case by section mouth (section port) 30.
34 rotations of motor 32 live axles.Axle 34 comprises the cam pin 36 that is received in the slide block 38.Slider seat is in sleeve 26 and between sleeve and cam pin 36.Therefore when making axle 34 time rotationals, the cam pin moving slider makes the vortex body 24 that rotates rotate.Anti-rotation coupling 37 guarantee to rotate vortex body will be not can rotation, but rotate.
The problem that prior art mesoscale eddies compressor exists can be understood by accompanying drawing 1B and 1C.Slide block 38 has usually than cam pin 36 big openings a lot, that be used to admit cam pin 36.Plane 52 in the hole that plane 54 on the cam pin 36 engages in the slide block 38.When along sense of rotation drive motor forward, the power in the scroll compressor makes plane 54 contact planes 52.When these power of removal, above-mentioned two removable disengagements in plane contact with each other.
Accompanying drawing 1C be roughly with the vertical view of accompanying drawing 1B view.As shown in the figure, " putting down " face 54 is not really to be flat, but in fact has tubular a little.In the prior art, have a problem sometimes, that is, slide block 38 moves and contacts the rear surface 60 of pedestal 27 straight up.This is undesirable.
Accompanying drawing 2A and 2B are depicted as the present invention.In accompanying drawing 2A and 2B, live axle 34 is provided with the cam pin 136 that is received in the slide block 138.Place, vertical upper space at slide block 138 is provided with recess 142.Place, vertical upper space at cam pin 36 is provided with retainer 140.This moment, when slide block 138 beginning when surface 60 moves up, retainer 140 will stop it to be moved further.Especially, the outside dimensions of the cam pin at retainer 140 places is shown in B among the figure.This size is less than the size in the hole in the slide block shown in A among the figure 138.By this way, slide block can drop on the cam pin simply.Yet when scroll compressor was driven, plane 54 was pressed against plane 52, and retainer will move crosses recess 142 and above recess.As can be known, the length that recess 142 extends is greater than the length of retainer 140 extensions from accompanying drawing 2B.This is in order to eliminate any alignment issues when the plane forms joint.
By this way, the invention provides a kind of simple but effective method, anti-limited slip block contacts the back of the vortex body that rotates.Although disclose a kind of preferred implementation of the present invention, those of ordinary skill in the art it should be understood that some improvement should be within protection scope of the present invention.For the foregoing reasons, consider that following claim is to determine real protection domain and the content of the present invention.
Claims (10)
1. scroll compressor comprises:
First scroll element has a pedestal and from the common screw type scroll wrap of described base extension;
Second scroll element has a pedestal and from the common screw type scroll wrap of its base extension, the described screw type scroll wrap interfix assembling of described first and second scroll elements is to limit compression chamber;
Live axle and the motor that is used to make described live axle rotation, described live axle have the cam pin that extends from an end of described live axle;
By described cam pin described second scroll element is rotated, described second scroll element has sleeve, this sleeve with respect to described scroll wrap with opposite direction from described base extension, described sleeve comprises the opening of admitting a slide block and described cam pin, described slide block is positioned at the centre of described cam pin and described sleeve, and described sleeve has the upper surface of the rear surface of the described pedestal that limits described second scroll element; And
Chocking construction on described cam pin is used for selectively contacting the stop surface on described slide block and prevents that described slide block from moving to described rear surface.
2. scroll compressor according to claim 1 is characterized in that described cam pin has the driving plane, this driving plane selectively move to described slide block in the hole in cooperate plane engagement.
3. scroll compressor according to claim 2 is characterized in that, the described plane on the described cam pin has tubular a little.
4. scroll compressor according to claim 1, it is characterized in that, described chocking construction comprises the single retainer on the name surface that extends beyond described cam pin, described stop surface in the described slide block is included in the recess in the end surface of described slide block, and described recess selectively contacts described retainer.
5. scroll compressor according to claim 1 is characterized in that, the most external size of described cam pin that comprises described chocking construction is crossed described cam pin less than the Inner Dimension in the hole in described slide block so that described slide block can move.
6. scroll compressor according to claim 1, it is characterized in that, described cam pin and described slide block have the cooperation drive surfaces, when making that described second scroll element rotates with forward direction, described cooperation drive surfaces forms contact, and the length of the described chocking construction on the described slide block of measuring along described drive surfaces is greater than the length of the described chocking construction on the described cam pin of measuring along described drive surfaces.
7. scroll compressor comprises:
First scroll element has pedestal and from the common screw type scroll wrap of described base extension;
Second scroll element has pedestal and from the common screw type scroll wrap of its base extension, the assembling of the screw type scroll wrap interfix of described first and second scroll elements is to limit compression chamber;
Live axle and the motor that is used to make described live axle rotation, described live axle have the cam pin that extends from an end of described live axle;
By described cam pin described second scroll element is rotated, described second scroll element has sleeve, this sleeve with respect to described scroll wrap with opposite direction from described base extension, described sleeve comprises the opening of admitting a slide block and described cam pin, described slide block is positioned at the centre of described cam pin and described sleeve, described sleeve has the upper surface of the rear surface of the described pedestal that limits described second scroll element, described cam pin has the driving plane, this driving plane selectively move to described slide block in the hole in cooperate plane engagement; And
Chocking construction on described cam pin, described retainer are used for selectively contacting the recess on described slide block and prevent that described slide block from moving to described rear surface, and described retainer comprises the single retainer on the name surface that extends beyond described cam pin.
8. according to the described scroll compressor of claim 7, it is characterized in that the described plane on the described cam pin has tubular a little.
9. according to the described scroll compressor of claim 7, it is characterized in that the most external size of described cam pin that comprises described chocking construction is crossed described cam pin less than the Inner Dimension in the hole in described slide block so that described slide block can move.
10. according to the described scroll compressor of claim 7, it is characterized in that described cam pin and described slide block have the cooperation drive surfaces, when making that described second scroll element rotates with forward direction, described cooperation drive surfaces forms contact; The length of the described chocking construction on the described slide block of measuring along described drive surfaces is greater than the length of the described chocking construction on the described cam pin of measuring along described drive surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101009319A CN101294565B (en) | 2007-04-28 | 2007-04-28 | Scroll compressor with stop structure to preventing sliding block moving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101009319A CN101294565B (en) | 2007-04-28 | 2007-04-28 | Scroll compressor with stop structure to preventing sliding block moving |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101294565A true CN101294565A (en) | 2008-10-29 |
| CN101294565B CN101294565B (en) | 2010-09-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101009319A Expired - Fee Related CN101294565B (en) | 2007-04-28 | 2007-04-28 | Scroll compressor with stop structure to preventing sliding block moving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101294565B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956772A (en) * | 2017-12-28 | 2018-04-24 | 东风商用车有限公司 | Eccentric pin structure |
| CN108252907A (en) * | 2017-12-29 | 2018-07-06 | 合肥通用机械研究院 | The mobile slide block type anti-rotation mechanism of screw compressor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3106737B2 (en) * | 1992-11-17 | 2000-11-06 | 株式会社豊田自動織機製作所 | Scroll compressor |
| JP3017641B2 (en) * | 1994-07-27 | 2000-03-13 | 株式会社豊田自動織機製作所 | Scroll compressor |
| US5496158A (en) * | 1994-12-22 | 1996-03-05 | Carrier Corporation | Drive for scroll compressor |
| US6352417B1 (en) * | 2000-11-06 | 2002-03-05 | Scroll Technologies | Optimized radial compliance for a scroll compressor |
-
2007
- 2007-04-28 CN CN2007101009319A patent/CN101294565B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956772A (en) * | 2017-12-28 | 2018-04-24 | 东风商用车有限公司 | Eccentric pin structure |
| CN107956772B (en) * | 2017-12-28 | 2023-06-06 | 东风商用车有限公司 | Eccentric pin structure |
| CN108252907A (en) * | 2017-12-29 | 2018-07-06 | 合肥通用机械研究院 | The mobile slide block type anti-rotation mechanism of screw compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101294565B (en) | 2010-09-29 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20100929 Termination date: 20160428 |