CN112855541B - Supporting mechanism and compressor with same - Google Patents
Supporting mechanism and compressor with same Download PDFInfo
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- CN112855541B CN112855541B CN202110034419.9A CN202110034419A CN112855541B CN 112855541 B CN112855541 B CN 112855541B CN 202110034419 A CN202110034419 A CN 202110034419A CN 112855541 B CN112855541 B CN 112855541B
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- block
- supporting
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- oil return
- boss
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
Abstract
The invention provides a supporting mechanism and a compressor with the same, wherein the supporting mechanism is used for supporting an orbiting scroll of the compressor and comprises: the support body is connected with the movable scroll disk, and a mounting channel is arranged on the support body; and at least part of the damping component is arranged in the installation channel, two end faces of the damping component are respectively attached to the support body, and a gap is formed between the side face of the damping component and the inner wall face of the installation channel. The invention solves the problem that the supporting mechanism of the compressor in the prior art is easy to vibrate.
Description
Technical Field
The invention relates to the field of compressor shock absorption, in particular to a supporting mechanism and a compressor with the same.
Background
At present, a support mechanism is arranged in a bedroom compressor of an air conditioner for a vehicle, a movable scroll disk of the compressor is supported by the support mechanism and moves under the power driving of the compressor, the movable scroll disk and a static scroll disk are combined to form a multi-stage compression cavity in the moving process, medium in the compression cavity generates pressure change after being compressed to form pulsation, meanwhile, the movable scroll disk and the static scroll disk move relatively to generate friction vibration, and vibration energy generated by the pressure pulsation and the friction vibration can be transmitted to the support mechanism.
In the working process of the compressor, the supporting mechanism can vibrate, so that the compressor generates large noise and user experience is influenced.
Disclosure of Invention
The invention mainly aims to provide a supporting mechanism and a compressor with the same, and aims to solve the problem that the supporting mechanism of the compressor in the prior art is easy to vibrate.
In order to achieve the above object, according to an aspect of the present invention, there is provided a support mechanism for supporting an orbiting scroll of a compressor, the support mechanism comprising: the support body is connected with the movable scroll disk, and a mounting channel is arranged on the support body; and at least part of the damping component is arranged in the installation channel, two end faces of the damping component are respectively attached to the support body, and a gap is formed between the side face of the damping component and the inner wall face of the installation channel.
Further, the shock absorbing assembly includes: the first supporting block is arranged at one end, close to the movable scroll, in the mounting channel, and at least part of the first supporting block is attached to the supporting body; the second supporting block is arranged at one end, far away from the movable scroll, in the mounting channel; and the vibration absorbing part is arranged between the first supporting block and the second supporting block and is respectively attached to the first supporting block and the second supporting block, and at least part of the vibration absorbing part can be arranged in an elastic deformation mode.
Further, the vibration absorbing member includes: the two elastic pieces are respectively sleeved on the first supporting block and the second supporting block; the both ends of bump leveller are overlapped respectively on the elastic component, have the clearance between the internal face of side of bump leveller and installation passageway.
Furthermore, the end part of the vibration absorption block is provided with a step structure, and at least part of the elastic piece is attached to the step end face of the step structure.
Furthermore, a first boss is arranged on the first supporting block, the first boss protrudes towards the middle direction of the mounting channel, and the elastic piece is sleeved on the first boss.
Furthermore, a second boss is arranged on the second supporting block, the second boss protrudes towards the middle direction of the mounting channel, and the elastic piece is sleeved on the second boss.
Furthermore, an oil return hole is formed in the support body and communicated with the gap, and oil in the compressor flows into the gap through the oil return hole.
Furthermore, a communicating cavity is arranged in the vibration absorption block, and the oil return hole is communicated with the communicating cavity; still be provided with first intercommunicating pore on the bump leveller, the intercommunication chamber is through first intercommunicating pore and clearance intercommunication, and fluid flows through in the intercommunication chamber and the clearance behind the first intercommunicating pore in proper order through the oil gallery.
Furthermore, a second communicating hole is formed in the first supporting block, and the oil return hole is communicated with the communicating cavity through the second communicating hole.
Furthermore, an oil return groove is formed in the connecting end face of the supporting body, and the oil return hole is communicated with the oil return groove.
According to another aspect of the present invention, there is provided a compressor, comprising a support mechanism, the support mechanism being the support mechanism described above.
By applying the technical scheme of the invention, the supporting mechanism is used for supporting the movable scroll disk of the compressor, wherein the supporting mechanism comprises a supporting body and a damping component, the supporting body is connected with the movable scroll disk, and the supporting body is provided with an installation channel; at least part of the damping component is installed in the installation channel, two end faces of the damping component are respectively attached to the support body, and a gap is formed between the side face of the damping component and the inner wall face of the installation channel. The vibration that the supporting body produced can be absorbed to the damper assembly through the setting like this, can pour into the medium that has damping effect such as frozen oil into the clearance to further reduce mechanism vibration noise, solved the problem that the supporting mechanism of compressor among the prior art produced vibration easily.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a state diagram of use of an embodiment of a support mechanism according to the invention;
FIG. 2 shows a schematic structural view of an embodiment of a support mechanism according to the present invention; and
fig. 3 shows a power principle diagram of the support mechanism according to the invention.
Wherein the figures include the following reference numerals:
1. a support body; 2. a shock absorbing assembly; 200. a movable scroll pan; 10. installing a channel; 3. a gap; 21. a first support block; 22. a second support block; 23. a vibration absorbing member; 24. an elastic member; 25. a vibration absorber; 210. a first boss; 220. a second boss; 11. an oil return hole; 250. a communicating cavity; 251. a first communication hole; 211. a second communication hole; 12. an oil return groove; 100. a housing; 300. a static scroll pan; 400. a front cover; 401. a front cover oil return hole; 301. and a static vortex disk oil return hole.
Detailed Description
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The present invention provides a supporting mechanism, referring to fig. 1 to 3, for supporting an orbiting scroll 200 of a compressor, the supporting mechanism including: the supporting body 1 is connected with the movable scroll 200, and the supporting body 1 is provided with a mounting channel 10; and the damping component 2 is at least partially installed in the installation channel 10, two end faces of the damping component 2 are respectively attached to the support body 1, and a gap 3 is formed between the side face of the damping component 2 and the inner wall face of the installation channel 10.
According to the present invention, a supporting mechanism for supporting an orbiting scroll 200 of a compressor is provided, wherein the supporting mechanism includes a supporting body 1 and a shock absorbing assembly 2, the supporting body 1 is connected with the orbiting scroll 200, and a mounting passage 10 is provided on the supporting body 1; at least part of the damper assembly 2 is installed in the installation channel 10, two end faces of the damper assembly 2 are respectively attached to the support body 1, and a gap 3 is formed between the side face of the damper assembly 2 and the inner wall face of the installation channel 10. The vibration generated by the supporting body 1 can be absorbed by the damping component 2, and a medium with damping effect such as refrigerating oil can be injected into the gap 3, so that the vibration noise of the mechanism is further reduced, and the problem that the supporting mechanism of the compressor in the prior art is easy to vibrate is solved.
Specifically, the shock-absorbing assembly 2 includes: a first support block 21 disposed at one end of the installation passage 10 adjacent to the orbiting scroll 200, at least a portion of the first support block 21 being attached to the support body 1; a second supporting block 22 disposed at one end of the mounting passage 10 far from the orbiting scroll 200; and a vibration absorbing member 23 disposed between the first support block 21 and the second support block 22 and respectively bonded to the first support block 21 and the second support block 22, wherein at least a part of the vibration absorbing member 23 is elastically deformable. The vibration absorbing member 23 is easily fixed in the installation passage 10 by providing the first and second support blocks 21 and 22, and at least a part of the vibration absorbing member 23 is elastically deformable to allow the vibration absorbing member 23 to absorb the vibration generated from the support body 1.
In a specific implementation, the shock absorbing member 23 includes: the number of the elastic pieces 24 is two, and the two elastic pieces 24 are respectively sleeved on the first supporting block 21 and the second supporting block 22; the two ends of the vibration absorption block 25 are respectively sleeved on the elastic piece 24, and a gap 3 is formed between the side surface of the vibration absorption block 25 and the inner wall surface of the mounting channel 10. Preferably, the elastic member 24 is made of rubber or other materials with elastic deformation.
As shown in fig. 2, the end of the shock absorber 25 is provided with a stepped structure, and at least a part of the elastic member 24 is fitted with a stepped end surface of the stepped structure. This is provided in order to allow the elastic member 24 and the shock-absorbing mass 25 to cooperate with each other to absorb the vibration generated from the support body 1.
In the embodiment provided by the present invention, the first supporting block 21 is provided with a first boss 210, the first boss 210 protrudes toward the middle of the mounting channel 10, and the elastic element 24 is sleeved on the first boss 210. The second supporting block 22 is provided with a second boss 220, the second boss 220 protrudes toward the middle direction of the installation channel 10, and the elastic member 24 is sleeved on the second boss 220. The two ends of the vibration absorber 25 are respectively provided with a first step structure and a second step structure, the step end face of the first step structure is opposite to the first boss 210, and the step end face of the second step structure is opposite to the second boss 220, so that after the elastic piece 24 is sleeved on the first boss 210, the elastic piece 24 is fixed between the first step structure and the first boss 210 by utilizing the mutual matching of the first boss 210 and the first step structure, and meanwhile, at least part of the first boss 210 extends into the communicating cavity 250 of the vibration absorber 25; similarly, the other elastic member 24 is fixed between the second stepped structure and the second boss 220, and at least a portion of the second boss 220 extends into the communicating chamber 250 of the absorber 25. Therefore, the elastic part 24 and the vibration absorption blocks 25 form a vibration system, the elastic part 24 provides an elastic potential energy storage function for the vibration absorption blocks 25, and the vibration energy of the support body 1 can be converted into the vibration energy of the vibration absorption blocks 25 and the elastic potential energy of the elastic part 24 through structural transmission, so that a tuned vibration absorption effect is achieved, the vibration energy of the support body 1 is absorbed, and the vibration effect of the support body 1 is reduced.
In the specific implementation process, the support body 1 is provided with an oil return hole 11, the oil return hole 11 is communicated with the gap 3, and oil in the compressor flows into the gap 3 through the oil return hole 11. Therefore, the refrigeration oil separated from the high-pressure refrigerant is fully utilized to flow into the gap 3 through the oil return hole 11, the refrigeration oil has the viscous damping characteristic, the vibration energy of the vibration absorption block 25 can be absorbed, the vibration energy is converted into heat to be consumed, and the effect of quickly reducing the vibration energy is achieved.
Specifically, the vibration absorber 25 is provided with a communicating cavity 250 therein, and the oil return hole 11 is communicated with the communicating cavity 250; the absorber 25 is further provided with a first communication hole 251, the communication cavity 250 is communicated with the gap 3 through the first communication hole 251, and the oil sequentially flows through the communication cavity 250 and the first communication hole 251 through the oil return hole 11 and then flows into the gap 3. Thus, both the inner and outer sides of the shock absorber 25 are immersed in the refrigerant oil to enhance the shock absorbing effect.
In order to facilitate the communication between the oil return hole 11 and the communication chamber 250, the first support block 21 is provided with a second communication hole 211, and the oil return hole 11 is communicated with the communication chamber 250 through the second communication hole 211.
Specifically, an oil return groove 12 is arranged on the connecting end face of the support body 1, and the oil return hole 11 is communicated with the oil return groove 12.
The invention also provides a compressor, which comprises a supporting mechanism, wherein the supporting mechanism is the supporting mechanism of the embodiment.
The compressor further comprises a shell 100 and a fixed scroll 300 which is matched with the movable scroll 200 to work, a fixed scroll oil return hole 301 is formed in the fixed scroll 300, the fixed scroll oil return hole 301 is communicated with an oil return groove 12, a front cover oil return hole 401 is formed in the front cover 400, the front cover oil return hole 401 is communicated with the fixed scroll oil return hole 301, an exhaust oil return passage is formed by the front cover oil return hole 401, the fixed scroll oil return hole 301, the oil return groove 12, the oil return hole 11 and the first communication hole 251 in series, and refrigerating oil separated from a high-pressure refrigerant in the front cover 400 flows into the gap 3 through the first communication hole 251, so that the inside and the outside of the vibration absorption block 25 are immersed in the refrigerating oil.
In order to ensure that the vibration of the support body 1 can be reduced as much as possible in a larger frequency range, the mass M of the support body 1 and the mass M of the absorber mass 25 should satisfy, according to the fixed-point nature of the mass tuned damping design: μ = (M + M)/M, μ range from 1.03 to 1.2.
Natural frequency omega of the support body 1 n With the natural frequency omega of the shock-absorbing assembly 2 a The optimal value of the ratio eta should satisfy:
wherein K1 is the stiffness of the support body 1; k2 is the elastic stiffness of the elastic member 24.
Fig. 3 shows the dynamic principle diagram of the supporting mechanism, wherein C2 is the viscous damping of the refrigeration oil.
In order to ensure that the vibration absorber 25 does not collide with the support body 1, the first support block 21 and the second support block 22 during the vibration process, it is necessary to satisfy:
D3-D4>0；D2-D1>0；D2-D5>0；
wherein D1 is the outer diameter of the second boss 220, D2 is the inner diameter of the communicating chamber 250, D3 is the inner diameter of the installation passage 10, D4 is the outer diameter of the vibration absorber 25, and D5 is the outer diameter of the first boss 210.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the support mechanism for supporting the movable scroll 200 of the compressor according to the present invention comprises a support body 1 and a damping assembly 2, wherein the support body 1 is connected with the movable scroll 200, and a mounting channel 10 is provided on the support body 1; at least part of the damper assembly 2 is installed in the installation channel 10, two end faces of the damper assembly 2 are respectively attached to the support body 1, and a gap 3 is formed between the side face of the damper assembly 2 and the inner wall face of the installation channel 10. The vibration generated by the supporting body 1 can be absorbed by the damping component 2, and a medium with damping effect such as refrigerating oil can be injected into the gap 3, so that the vibration noise of the mechanism is further reduced, and the problem that the supporting mechanism of the compressor in the prior art is easy to vibrate is solved.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances such that, for example, embodiments of the application described herein may be implemented in sequences other than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For ease of description, spatially relative terms such as "over 8230," "upper surface," "above," and the like may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A support mechanism for supporting an orbiting scroll (200) of a compressor, the support mechanism comprising:
the support body (1) is connected with the movable scroll disc (200), and a mounting channel (10) is arranged on the support body (1);
the shock absorption assembly (2) is at least partially installed in the installation channel (10), two end faces of the shock absorption assembly (2) are respectively attached to the support body (1), and a gap (3) is formed between the side face of the shock absorption assembly (2) and the inner wall face of the installation channel (10);
the shock absorption assembly (2) comprises a first support block (21) which is arranged at one end of the mounting channel (10) close to the movable scroll (200), and at least part of the first support block (21) is attached to the support body (1); a second supporting block (22) disposed at an end of the mounting passage (10) far from the orbiting scroll (200); a shock absorbing member (23) provided between the first support block (21) and the second support block (22) and respectively bonded to the first support block (21) and the second support block (22), at least a part of the shock absorbing member (23) being elastically deformable;
the vibration absorption part (23) comprises an elastic part (24) and a vibration absorption block (25), two ends of the vibration absorption block (25) are respectively sleeved on the elastic part (24), and a gap (3) is formed between the side surface of the vibration absorption block (25) and the inner wall surface of the installation channel (10); the vibration absorption block (25) is internally provided with a communicating cavity (250);
an oil return hole (11) is formed in the support body (1), the oil return hole (11) is communicated with the gap (3) through the communication cavity (250), and oil in the compressor flows into the gap (3) through the oil return hole (11);
the vibration absorber (25) is further provided with a first communication hole (251), the communication cavity (250) is communicated with the gap (3) through the first communication hole (251), and the oil flows into the gap (3) after sequentially flowing through the communication cavity (250) and the first communication hole (251) through the oil return hole (11); an oil return groove (12) is formed in the connecting end face of the supporting body (1), and the oil return hole (11) is communicated with the oil return groove (12).
2. The supporting mechanism according to claim 1, wherein there are two elastic members (24), and the two elastic members (24) are respectively sleeved on the first supporting block (21) and the second supporting block (22).
3. The support mechanism according to claim 2, wherein the end of the shock absorber mass (25) is provided with a stepped structure, and at least a portion of one (24) of the two elastic members (24) abuts against a stepped end surface of the stepped structure.
4. The supporting mechanism as claimed in claim 2, wherein the first supporting block (21) is provided with a first boss (210), the first boss (210) protrudes toward the middle of the mounting channel (10), and one of the two elastic members (24), the elastic member (24) is sleeved on the first boss (210).
5. The supporting mechanism as claimed in claim 2, wherein the second supporting block (22) is provided with a second boss (220), the second boss (220) protrudes toward the middle of the mounting channel (10), and the elastic member (24) is sleeved on the second boss (220).
6. The supporting mechanism according to claim 1, wherein a second communication hole (211) is provided on the first supporting block (21), and the oil return hole (11) is communicated with the communication chamber (250) through the second communication hole (211).
7. A compressor comprising a support mechanism, wherein the support mechanism is as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110034419.9A CN112855541B (en) | 2021-01-11 | 2021-01-11 | Supporting mechanism and compressor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110034419.9A CN112855541B (en) | 2021-01-11 | 2021-01-11 | Supporting mechanism and compressor with same |
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| Publication Number | Publication Date |
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| CN112855541A CN112855541A (en) | 2021-05-28 |
| CN112855541B true CN112855541B (en) | 2022-12-09 |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3965982B2 (en) * | 2001-11-29 | 2007-08-29 | 松下電工株式会社 | Scroll type pump |
| CN202240492U (en) * | 2011-08-18 | 2012-05-30 | 西安万威刀具有限公司 | Shockproof cutter bar |
| KR101300261B1 (en) * | 2011-11-09 | 2013-08-23 | 엘지전자 주식회사 | Scroll compressor |
| CN211136480U (en) * | 2019-11-27 | 2020-07-31 | 株洲钻石切削刀具股份有限公司 | Damping vibration attenuation device and vibration attenuation cutter |
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