CN204419581U - A kind of equilibrium block for scroll compressor - Google Patents
A kind of equilibrium block for scroll compressor Download PDFInfo
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- CN204419581U CN204419581U CN201420800413.3U CN201420800413U CN204419581U CN 204419581 U CN204419581 U CN 204419581U CN 201420800413 U CN201420800413 U CN 201420800413U CN 204419581 U CN204419581 U CN 204419581U
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- equilibrium block
- sliding sleeve
- movable orbiting
- orbiting scroll
- scroll compressor
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Abstract
The utility model relates to a kind of equilibrium block for scroll compressor, this equilibrium block is the integral structure that eccentric sliding sleeve part and counterweight part form, eccentric sliding sleeve part is connected with movable orbiting scroll bearing fit, to movable orbiting scroll transmission of drive force, counterweight part is connected to the bottom of sliding sleeve part, is positioned at movable orbiting scroll side direction or the position of direction extension of tossing about.Compared with prior art, equilibrium block of the present utility model can eliminate Moving plate centrifugal force with the impact of rotation speed change on radial sealing force, eliminates the adverse effect to performance, noise that radial sealing force causes with rotation speed change.
Description
Technical field
The utility model relates to the equilibrium structure being applicable to variable-frequency electric scroll compressor, especially relates to a kind of equilibrium block eliminated movable orbiting scroll centrifugal force and affect radial sealing force.
Background technique
The variable-frequency electric scroll compressor of existing movable eccentric structure, radial sealing force between Moving plate and quiet dish is that Moving plate centrifugal force and crankshaft eccentric radial thrust component sum deduct radial gas power, it is directly proportional to compressor rotary speed square, under the condition ensureing slow-speed of revolution radial sealing force, high-revolving sealing force increases, and has a negative impact to performance, noise.And the equilibrium structure usually adopted all is considered from trim complete machine, the impact of rotating speed on radial sealing force can not be eliminated.
Chinese patent CN202187925U discloses a kind of high manganese steel balancing piece for inverter compressors, comprise first, second equilibrium block, first, second equilibrium block is stepped, wherein the first equilibrium block thickness is greater than the second equilibrium block, the side that both diameters are larger is relative, and first, second equilibrium block is formed by high manganese steel precision casting.This patent mainly adopts precision casting process to replace forging and stamping, after-processing technology, Cuprum alloy is instead of as material with high manganese steel, the high manganese steel frequency conversion equilibrium block made can reach the original size and the performance requirement that adopt non-ferrous metal equalizing feature completely, avoid following process, the performance such as its dimensional accuracy, permeability, vibration, noise, balance can meet the requirement of compressor completely, but cannot solve the impact of rotating speed on radial sealing force.
Model utility content
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and a kind of equilibrium block eliminating the adverse effect to performance, noise that radial sealing force causes with rotation speed change is provided.
The purpose of this utility model can be achieved through the following technical solutions:
For an equilibrium block for scroll compressor, be that eccentric sliding sleeve part and counterweight part form integral structure by equilibrium block,
Described eccentric sliding sleeve part is connected with movable orbiting scroll bearing fit, and to movable orbiting scroll transmission of drive force, described counterweight part is welded to connect in the bottom of sliding sleeve part, is positioned at movable orbiting scroll side direction or the position of direction extension of tossing about.
Preferably, eccentric sliding sleeve portion outboard is mate with movable orbiting scroll bearing the cylindrical structure be connected, and the through hole of built-up crankshaft is offered in inner side.
More preferably, through hole is provided with the plane driving plane to match with crankshaft eccentric portion, and to movable orbiting scroll transmission of drive force, eccentric sliding sleeve part is slided along the plane driving plane to match with crankshaft eccentric portion in through hole at radial extension.
Preferably, one end that eccentric sliding sleeve section bottom and crankshaft end-face are fitted, locates also to offer through groove in the elongation line process of crankshaft center line and sliding sleeve axis line, becomes oil drain passage at work, form interior oil circulation.
The product of the distance of the quality of equilibrium block and barycenter and crankshaft center line, equals the quality of movable orbiting scroll and the product of Moving plate operating radius.
Because frequency-changeable compressor rotating speed is larger, noise is also larger; And along with rotating speed increase, radial sealing force suffered by the dish of whirlpool increases, whirlpool dish tooth wall friction power increases, affect performance, equilibrium block of the present utility model can eliminate Moving plate centrifugal force with the impact of rotation speed change on radial sealing force, eliminates the adverse effect to performance, noise that radial sealing force causes with rotation speed change.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model;
Fig. 2 is plan structure schematic diagram of the present utility model;
Fig. 3 is assembly structure schematic diagram of the present utility model.
In figure, 1 be eccentric sliding sleeve part, 11 be through hole, 2 be level and smooth counterweight part, 3 be oil drain passage, 4 be movable orbiting scroll, 5 be bent axle, 6 be support, 7 for partition ring.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment
For an equilibrium block for scroll compressor, as shown in Figure 1-2, as shown in Figure 3, this equilibrium block is that eccentric sliding sleeve part 1 forms integral structure with counterweight part 2 to mounting structure to its structure.Eccentric sliding sleeve part 1 is connected with the bearing fit of movable orbiting scroll 4, to movable orbiting scroll 4 transmission of drive force, counterweight part 2 is welded to connect the bottom in sliding sleeve part 1, the position that movable orbiting scroll side direction extends can be positioned at, or movable orbiting scroll toss about direction extend position, also need when mounted in addition to avoid the component such as support 6, partition ring 7.
Be mate with the bearing of movable orbiting scroll 4 cylindrical structure be connected outside eccentric sliding sleeve part 1, the through hole 11 of built-up crankshaft is offered in inner side.The plane driving plane to match with the eccentric part of bent axle 5 is provided with in through hole 11, to movable orbiting scroll 4 transmission of drive force, the slip that eccentric sliding sleeve part 1 can be carried out among a small circle in radial direction along the plane driving plane to match with crankshaft eccentric portion in through hole 11.
The one end of fitting with crankshaft end-face bottom eccentric sliding sleeve part 1, locates also to offer through groove in the elongation line process of crankshaft center line and sliding sleeve axis line, becomes oil drain passage 3 at work, form interior oil circulation.
The product of the distance of the quality of equilibrium block and barycenter and crankshaft center line, equals the quality of movable orbiting scroll and the product of Moving plate operating radius, with reference to figure 3, take crankshaft center line as spin axis, if following relevant parameter:
The quality of Mos---movable orbiting scroll 4;
The turning radius of Ros---movable orbiting scroll 4;
The quality of Mpb---equilibrium block;
The turning radius of Rpb---equilibrium block;
Then above each parameter will meet the following conditions simultaneously: Mos × Ros=Mpb × Rpb.
By meeting said structure feature, this equilibrium block can eliminate Moving plate centrifugal force with the impact of rotation speed change on radial sealing force, eliminates the adverse effect to performance, noise that radial sealing force causes with rotation speed change.
Claims (7)
1. for an equilibrium block for scroll compressor, it is characterized in that, this equilibrium block is the integral structure that eccentric sliding sleeve part and counterweight part form,
Described eccentric sliding sleeve part is connected with movable orbiting scroll bearing fit, to movable orbiting scroll transmission of drive force,
Described counterweight part is connected to the bottom of sliding sleeve part.
2. a kind of equilibrium block for scroll compressor according to claim 1, is characterized in that, described eccentric sliding sleeve portion outboard is mate with movable orbiting scroll bearing the cylindrical structure be connected, and the through hole of built-up crankshaft is offered in inner side.
3. a kind of equilibrium block for scroll compressor according to claim 2, is characterized in that, described through hole is provided with the plane driving plane to match with crankshaft eccentric portion, to movable orbiting scroll transmission of drive force.
4. a kind of equilibrium block for scroll compressor according to claim 3, is characterized in that, described eccentric sliding sleeve part is slided along the plane driving plane to match with crankshaft eccentric portion in through hole at radial extension.
5. a kind of equilibrium block for scroll compressor according to claim 1, is characterized in that, one end that described eccentric sliding sleeve section bottom and crankshaft end-face are fitted, and locates also to offer through groove in the elongation line process of crankshaft center line and sliding sleeve axis line.
6. a kind of equilibrium block for scroll compressor according to claim 1, is characterized in that, the position that described counterweight part is positioned at movable orbiting scroll side direction or direction of tossing about extends.
7. a kind of equilibrium block for scroll compressor according to any one of claim 1-6, is characterized in that, the product of the distance of the quality of described equilibrium block and barycenter and crankshaft center line, equals the quality of movable orbiting scroll and the product of Moving plate operating radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800413.3U CN204419581U (en) | 2014-12-16 | 2014-12-16 | A kind of equilibrium block for scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800413.3U CN204419581U (en) | 2014-12-16 | 2014-12-16 | A kind of equilibrium block for scroll compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419581U true CN204419581U (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420800413.3U Active CN204419581U (en) | 2014-12-16 | 2014-12-16 | A kind of equilibrium block for scroll compressor |
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| CN (1) | CN204419581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110945245A (en) * | 2017-08-04 | 2020-03-31 | 三菱电机株式会社 | Scroll compressor having a plurality of scroll members |
-
2014
- 2014-12-16 CN CN201420800413.3U patent/CN204419581U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110945245A (en) * | 2017-08-04 | 2020-03-31 | 三菱电机株式会社 | Scroll compressor having a plurality of scroll members |
| CN110945245B (en) * | 2017-08-04 | 2021-09-14 | 三菱电机株式会社 | Scroll compressor having a plurality of scroll members |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170714 Address after: 201206, Shanghai, Pudong New Area, China (Shanghai) free trade test area, Nanjing Road Bridge, No. 888, 2 blocks of A, 16 B and C District Patentee after: Shanghai Lixin Energy Technology Co. Ltd Address before: 201206, Pudong New Area Pudong Jinqiao Export Processing Zone, No. 1051, Bridge Road, Shanghai Patentee before: Rili Electric Appliance Co., Ltd., Shanghai |