CN204373285U - Compressor and reservoir thereof - Google Patents
Compressor and reservoir thereof Download PDFInfo
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- CN204373285U CN204373285U CN201420835799.1U CN201420835799U CN204373285U CN 204373285 U CN204373285 U CN 204373285U CN 201420835799 U CN201420835799 U CN 201420835799U CN 204373285 U CN204373285 U CN 204373285U
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- spring leaf
- reservoir
- vibration absorber
- dynamic vibration
- compressor
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Abstract
The utility model discloses a kind of compressor and reservoir thereof, the reservoir of described compressor comprises: housing; Dynamic vibration absorber, described dynamic vibration absorber is located in described housing, described dynamic vibration absorber comprises: balancing weight and multiple spring leaf, on the outer wall that the first end of each described spring leaf is connected to described balancing weight and the second end of each described spring leaf be connected on the inwall of described housing.Little according to the tangential vibrations of the reservoir of the compressor of the utility model embodiment.
Description
Technical field
The utility model relates to compressor field, especially relates to a kind of reservoir of compressor and has the compressor of this reservoir.
Background technology
In correlation technique, rotary compressor operationally, because bent axle drives piston compression cylinder interior gas, therefore, crankshaft rotating one week, cylinder completes first compression process, also produce simultaneously and there is periodically variable gas moment loading, thus cause rotary compressor operationally to produce rotary vibration, due to compressor rotary vibration substantially with compressor body axis for the centre of gyration, and the size of the rotary vibration of each position is directly proportional apart from the distance between centre of gyration axis to it, therefore the reservoir tangential position away from compressor body is generally the maximum oscillation point of compressor, and directly drive the escape pipe vibration of air-conditioning system, influential system pipeline stress and noise level.
Utility model content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model needs the reservoir proposing a kind of compressor, and the tangential vibrations of this reservoir is little.
The utility model also needs to propose a kind of compressor with this reservoir.
Reservoir according to the compressor of the utility model first aspect comprises; Housing; Dynamic vibration absorber, described dynamic vibration absorber is located in described housing, described dynamic vibration absorber comprises: balancing weight and multiple spring leaf, on the outer wall that the first end of each described spring leaf is connected to described balancing weight and the second end of each described spring leaf be connected on the inwall of described housing.
According to the reservoir of compressor of the present utility model, by the enclosure interior at reservoir, dynamic vibration absorber is set, when compressor operating, the tangential vibrations of reservoir self can be reduced, thus reduce the escape pipe vibration of air-conditioning system, reduce air-conditioning system pipeline stress and noise level, because dynamic vibration absorber is arranged in reservoir inside, thus save space.In addition, because dynamic vibration absorber has balancing weight and spring leaf two kinds of Structure composing, therefore make the structure of whole dynamic vibration absorber simple, easily realize, and cost is low.
In addition, also following additional technical feature can be had according to the reservoir of compressor of the present utility model:
According to an embodiment of the present utility model, described balancing weight is cylindrical, and described multiple spring leaf comprises the first spring leaf and the second spring leaf, and described first spring leaf and described second spring leaf are arranged relative to the diameter symmetry of described balancing weight.
According to an embodiment of the present utility model, the part that the first end of the outer wall of described balancing weight and the first end of described first spring leaf and described second spring leaf is connected is configured to plane.
According to an embodiment of the present utility model, the angle theta between the first end of described first spring leaf and the axis direction stretching into the part in described compressor main body of the normal orientation of the first end of described second spring leaf and the tie point position of described balancing weight and the escape pipe of described reservoir meets: 45 °≤θ≤135 °.
According to an embodiment of the present utility model, described angle theta=90 °.
According to an embodiment of the present utility model, described dynamic vibration absorber comprises retainer further, and the second end of each described spring leaf is connected on described retainer, and described retainer is located on the inwall of described housing.
According to an embodiment of the present utility model, described retainer is annular, and the part that described retainer is connected with the second end of each described spring leaf is configured to plane.
According to an embodiment of the present utility model, described enclosure interior is also provided with filter screen stand, and described filter screen stand is located on the inwall of described housing, and the second end of each described spring leaf is connected on described filter screen stand.
According to an embodiment of the present utility model, described dynamic vibration absorber also comprises brace, and the second end of each described spring leaf is connected on described brace, and described brace is connected with the inwall of described housing.
According to an embodiment of the present utility model, multiple described spring leaf and described brace are integrally formed.
According to an embodiment of the present utility model, the intrinsic frequency of described dynamic vibration absorber is f
nmeet following relational expression: f-5Hz≤f
n≤ f+5Hz, wherein, f is the supply frequency of the external power supply of described compressor.
According to an embodiment of the present utility model, described dynamic vibration absorber is that multiple and described multiple dynamic vibration absorber is spaced to turn up the soil and is located in described housing.
According to an embodiment of the present utility model, described spring leaf is linear pattern, shaped form, broken line type or U-shaped.
According to the compressor of the utility model second aspect embodiment, comprising: the reservoir of the compressor according to the utility model first aspect.
Owing to there is above-mentioned advantage according to the reservoir of the utility model embodiment, therefore according to the compressor such as rotary compressor of the utility model embodiment, by arranging the reservoir of above-mentioned first aspect embodiment, the rotary vibration of compressor can be reduced, reducing the vibration noise of compressor.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the compressor according to the utility model embodiment;
Fig. 2 is the horizontal cross of the compressor according to the utility model embodiment;
Fig. 3 is the stereogram of an embodiment of dynamic vibration absorber according to the utility model reservoir;
Fig. 4 is the scheme of installation of the dynamic vibration absorber shown in Fig. 3 in reservoir enclosure interior;
Fig. 5 is the stereogram of another embodiment of dynamic vibration absorber according to the utility model reservoir;
Fig. 6 is the horizontal cross of the dynamic vibration absorber shown in Fig. 5; ;
Fig. 7 is the scheme of installation of the dynamic vibration absorber shown in Fig. 5 in reservoir enclosure interior;
Fig. 8 is the stereogram of another embodiment of dynamic vibration absorber according to the utility model reservoir;
Fig. 9 is the scheme of installation of the dynamic vibration absorber shown in Fig. 8 in reservoir enclosure interior;
Figure 10 is the stereogram of another embodiment of dynamic vibration absorber according to the utility model reservoir;
Figure 11 is the scheme of installation of the dynamic vibration absorber shown in Figure 10 in reservoir enclosure interior;
Figure 12 is the stereogram of another embodiment of dynamic vibration absorber according to the utility model reservoir;
Figure 13 is the scheme of installation of the dynamic vibration absorber shown in Figure 12 in reservoir enclosure interior.
Reference numeral:
Compressor 200; Compressor main body 201; Escape pipe 202;
Reservoir 100;
Housing 1;
Dynamic vibration absorber 2;
Balancing weight 21;
First spring leaf 22; The first end 221 of the first spring leaf 22; Second end 222 of the first spring leaf 22;
Second spring leaf 23; The first end 231 of the second spring leaf 23; Second end 232 of the second spring leaf 23;
Retainer 24; Brace 25;
Filter screen stand 3.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
Describe the reservoir 100 according to the compressor 200 of the utility model first aspect embodiment below with reference to Fig. 1-Figure 13, wherein reservoir 100 may be used in rotary compressor.In description below the application, for reservoir 100 for being described in rotary compressor.Certainly, those skilled in the art are appreciated that and can also be used in the compressor of other type according to the reservoir 100 of the utility model embodiment, and are not limited to rotary compressor.
With reference to Fig. 1, compressor 200 comprises compressor main body 201 and reservoir 100, reservoir 100 is located at outside compressor main body 201, such as reservoir 100 can be fixed on the outer wall of compressor main body 201, now reservoir 100 is fixed relative to compressor main body 201, reservoir 100 is communicated with the compression chamber of compressor main body 201 inside, compresses to be passed in compression chamber by cold-producing medium
As shown in Fig. 1-Figure 13, according to the reservoir 100 of the compressor 200 of the utility model first aspect embodiment, comprise housing 1 and dynamic vibration absorber 2.Dynamic vibration absorber 2 is located in the housing 1 of reservoir 100, to reduce the tangential vibrations of reservoir 100.
Particularly, dynamic vibration absorber 2 comprises: balancing weight 21 and multiple spring leaf, on the outer wall that the first end of each spring leaf is connected to balancing weight 21 and the second end of each spring leaf be connected on the inwall of housing 1.That is, balancing weight 21 is located on the inwall of housing 1 by multiple spring leaf.Wherein, spring leaf is laminated structure, and spring leaf has certain elastic deformation ability.
According to the reservoir 100 of compressor 200 of the present utility model, by housing 1 inside at reservoir 100, dynamic vibration absorber 2 is set, when compressor 200 runs, the tangential vibrations of reservoir 100 self can be reduced, thus the escape pipe 202 reducing air-conditioning system vibrates, reduce air-conditioning system pipeline stress and noise level, because dynamic vibration absorber 2 is arranged in reservoir 100 inside, thus save space.In addition, because dynamic vibration absorber 2 has balancing weight 21 and spring leaf two kinds of Structure composing, therefore make the structure of whole dynamic vibration absorber 2 simple, easily realize, and cost is low.
It should be noted that, the shape of spring leaf can be arbitrary, and such as spring leaf can be linear pattern, shaped form, broken line type or U-shaped.And the connected mode of the outer wall of the first end of each spring leaf and balancing weight 21 is also arbitrary, the first end of such as each spring leaf can with the outer wall of balancing weight 21 by pasting, welding, rivet, screw is connected, buckle connection etc. is detachable or non-removable mode connects.Further, the connected mode of the second end of each spring leaf and the inwall of housing 1 is also arbitrary, second end of such as each spring leaf directly can be connected with the inwall of housing 1, particularly, each spring leaf the second end can with the inwall of housing 1 by pasting, welding, rivet, screw is connected, buckle connection etc. is detachable or non-removable mode connects; Such as, it is appreciated of course that the second end of each spring leaf can also be connected by the inwall of other structures with housing 1, and the inside of housing 1 is also provided with supporting structure, the second end of each spring leaf can be connected by the inwall of supporting structure with housing 1.
Below with reference to the accompanying drawings the reservoir 100 according to the different embodiment of the utility model is specifically described.
As shown in Fig. 3-Figure 13, in embodiments more of the present utility model, balancing weight 21 in dynamic vibration absorber 2 is cylindrical, wherein, the through hole running through its height vertically is also provided with in balancing weight 21, reduce the weight of balancing weight 21 with this, and the escape pipe 202 of reservoir 100 can extend up to the upper space of housing 1 by this through hole, structural allocation is more reasonable.Multiple spring leaf comprises the first spring leaf 22 and the second spring leaf 23, first spring leaf 22 and the second spring leaf 23 and arranges relative to the diameter symmetry of balancing weight 21.That is, spring leaf comprises two, and two spring leafs are uniformly distributed in the circumference of balancing weight 21, and can make the structure structure of dynamic vibration absorber 2 thus rationally, absorbing effect is more effective.
For convenience, in the following description, will comprise two spring leafs for dynamic vibration absorber 2 and be described, certain the utility model is not limited to this, can comprise more spring leaf in dynamic vibration absorber 2, multiple spring leaf can be evenly arranged along the circumference of balancing weight 21.
In example as shown in Figure 3 and Figure 4, the part that the first end 231 of the outer wall of balancing weight 21 and the first end 221 of the first spring leaf 22 and the second spring leaf 23 is connected is configured to plane.Such as, plane can extend along the circumference of balancing weight 21, namely the shape of balancing weight 21 is in cylindrical structure remaining after its diameter symmetry excision part, like this by arranging plane on the outer wall of balancing weight 21, thus the connection of the first spring leaf 22 and the second spring leaf 23 can be facilitated, connect more stable.
In the example depicted in fig. 3, first spring leaf 22 and the second spring leaf 23 are shaped form, namely the floor projection of the first spring leaf 22 and the second spring leaf 23 is curve, and the first end 221 of the first spring leaf 22 and the first end 231 of the second spring leaf 23 are connected to the planar section of the outer wall of balancing weight 21 respectively by screw.First spring leaf 22 and the legged linear extension from junction of the second spring leaf 23, as shown in Figure 4, the second end 222 of the first spring leaf 22 and the second end 232 of the second spring leaf 23 are connected directly between on the inwall of housing 1 respectively.
As shown in Figure 2, angle theta between the first end 221 of the first spring leaf 22 and the axis direction stretching into the part in compressor main body 201 of the normal orientation of the first end 231 of the second spring leaf 23 and the tie point position of balancing weight 21 and the escape pipe 202 of reservoir 100 meets: 45 °≤θ≤135 °, preferably, angle theta=90 °, namely the first end 221 of the first spring leaf 22 is vertical with the axis direction stretching into the part in compressor main body 201 of the escape pipe 202 of reservoir 100 with the normal orientation of the tie point position of balancing weight 21 with the first end 231 of the second spring leaf 23, thus, the tangential vibrations of reservoir 100 can be reduced better.
In example as shown in Figure 5-Figure 7, with the example shown in Fig. 3 unlike, dynamic vibration absorber 2 comprises retainer 24 further, and the second end of each spring leaf is connected on retainer 24, and retainer 24 is located on the inwall of housing 1.That is, in this example, the second end 222 of the first spring leaf 22 and the second end 232 of the second spring leaf 23 are connected on the inwall of housing 1 indirectly by other structure.
Wherein, second end 232 of the second end 222 of the first spring leaf 22 and the second spring leaf 23 can be arbitrary with the connected mode of retainer 24, the second end 222 of such as the first spring leaf 22 and the second end 232 of the second spring leaf 23 and retainer 24 can by pasting, welding, rivet, screw is connected, buckle connection etc. is detachable or non-removable mode connects.Correspondingly, between retainer 24 and the inwall of housing 1 also can by pasting, welding, rivet, screw is connected, buckle connection etc. is detachable or non-removable mode connects.
Alternatively, retainer 24 is annular, and the part that retainer 24 is connected with the second end of each spring leaf is configured to plane.Can make that the connection between each spring leaf and retainer 24 is convenient, structure is more stable thus.
By arranging retainer 24, effectively can prevent balancing weight 21 from directly clashing into the inwall of housing 1 and producing larger noise like this, and effectively can protect housing 1.
In example as shown in Figure 8 and Figure 9, with the example shown in Fig. 5 unlike, first spring leaf 22 and the second spring leaf 23 are U-shaped, particularly, the first U-shaped spring leaf 22 and the second spring leaf 23 opening down, the first end 221 of the first spring leaf 22 is connected with balancing weight 21 with the first end 231 of the second spring leaf 23, and the second end 222 of the first spring leaf 22 is connected with retainer 24 with the second end 232 of the second spring leaf 23.
In example as shown in Figure 10 and Figure 11, housing 1 inside is also provided with filter screen stand 3, filter screen stand 3 is located on the inwall of housing 1, second end of each spring leaf is connected on filter screen stand 3, that is, second end 222 of the first spring leaf 22 and the second end 232 of the second spring leaf 23 can be connected on the inwall of housing 1 by filter screen stand 3, the connected mode of dynamic vibration absorber 2 can be made thus to have more diversity, more adapt to the requirement of actual process and installing space.Particularly, in this example, the first spring leaf 22 and the second spring leaf 23 are linear pattern, and the first spring leaf 22 and the second spring leaf 23 upwards extend to be connected to the inwall of housing 1 with filter screen stand 3 from the junction of balancing weight 21.
In example as shown in Figure 12 and Figure 13, dynamic vibration absorber 2 also comprises brace 25, and the second end of each spring leaf is connected on brace 25, and brace 25 is connected with the inwall of housing 1.That is, with the example shown in Figure 10 unlike, the second end 222 of the first spring leaf 22 is connected with brace 25 respectively with the second end 232 of the second spring leaf 23, and is connected to by brace 25 on the inwall of housing 1 again.Preferably, multiple spring leaf and brace 25 are integrally formed, and that is, the first spring leaf 22 is integrally formed with brace 25, second spring leaf 23 is integrally formed with brace 25, so can improve the syndeton intensity of the first spring leaf 22 and the second spring leaf 23 and brace 25.
In embodiments more of the present utility model, the intrinsic frequency of dynamic vibration absorber 2 is f
nmeet following relational expression: f-5Hz≤f
n≤ f+5Hz, wherein, f is the supply frequency of the external power supply of compressor 200, i.e. domestic power supply frequency, such as f=50Hz.Certainly, supply frequency can also be 60Hz, or the arbitrary value between 50Hz ~ 60Hz.
Alternatively, dynamic vibration absorber 2 is located in housing 1 for multiple and multiple dynamic vibration absorber 2 is spaced to turn up the soil.Each dynamic vibration absorber 2 includes a balancing weight 21 and multiple spring leaf.Be appreciated that the quantity of dynamic vibration absorber 2 can according to actual requirement specific design, to have effectiveness in vibration suppression better.
According to the compressor 200 of the utility model second aspect embodiment, comprise the reservoir 100 according to the utility model first aspect embodiment.Because the reservoir 100 according to the utility model embodiment has above-mentioned advantage, therefore according to the compressor 200 such as rotary compressor 200 of the utility model embodiment, by arranging the reservoir 100 of above-mentioned first aspect embodiment, the rotary vibration of compressor 200 can be reduced, reduce the vibration noise of compressor 200.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.
Claims (14)
1. a reservoir for compressor, is characterized in that, comprising:
Housing;
Dynamic vibration absorber, described dynamic vibration absorber is located in described housing, described dynamic vibration absorber comprises: balancing weight and multiple spring leaf, on the outer wall that the first end of each described spring leaf is connected to described balancing weight and the second end of each described spring leaf be connected on the inwall of described housing.
2. the reservoir of compressor according to claim 1, it is characterized in that, described balancing weight is cylindrical, and described multiple spring leaf comprises the first spring leaf and the second spring leaf, and described first spring leaf and described second spring leaf are arranged relative to the diameter symmetry of described balancing weight.
3. the reservoir of compressor according to claim 2, is characterized in that, the part that the first end of the outer wall of described balancing weight and the first end of described first spring leaf and described second spring leaf is connected is configured to plane.
4. the reservoir of compressor according to claim 2, it is characterized in that, the angle theta between the first end of described first spring leaf and the axis direction stretching into the part in described compressor main body of the normal orientation of the first end of described second spring leaf and the tie point position of described balancing weight and the escape pipe of described reservoir meets: 45 °≤θ≤135 °.
5. the reservoir of compressor according to claim 4, is characterized in that, described angle theta=90 °.
6. the reservoir of compressor according to claim 1, is characterized in that, described dynamic vibration absorber comprises retainer further, and the second end of each described spring leaf is connected on described retainer, and described retainer is located on the inwall of described housing.
7. the reservoir of compressor according to claim 6, is characterized in that, described retainer is annular, and the part that described retainer is connected with the second end of each described spring leaf is configured to plane.
8. the reservoir of compressor according to claim 1, is characterized in that, described enclosure interior is also provided with filter screen stand, and described filter screen stand is located on the inwall of described housing, and the second end of each described spring leaf is connected on described filter screen stand.
9. the reservoir of compressor according to claim 1, is characterized in that, described dynamic vibration absorber also comprises brace, and the second end of each described spring leaf is connected on described brace, and described brace is connected with the inwall of described housing.
10. the reservoir of compressor according to claim 9, is characterized in that, multiple described spring leaf and described brace are integrally formed.
The reservoir of 11. compressors according to claim 1, is characterized in that, the intrinsic frequency of described dynamic vibration absorber is f
nmeet following relational expression: f-5Hz≤f
n≤ f+5Hz, wherein, f is the supply frequency of the external power supply of described compressor.
The reservoir of 12. compressors according to claim 1, is characterized in that, described dynamic vibration absorber is that multiple and described multiple dynamic vibration absorber is spaced to turn up the soil and is located in described housing.
The reservoir of 13. compressors according to any one of claim 1-12, is characterized in that, described spring leaf is linear pattern, shaped form, broken line type or U-shaped.
14. 1 kinds of compressors, is characterized in that, comprising: the reservoir of the compressor according to any one of claim 1-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420835799.1U CN204373285U (en) | 2014-12-19 | 2014-12-19 | Compressor and reservoir thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420835799.1U CN204373285U (en) | 2014-12-19 | 2014-12-19 | Compressor and reservoir thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204373285U true CN204373285U (en) | 2015-06-03 |
Family
ID=53329499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420835799.1U Active CN204373285U (en) | 2014-12-19 | 2014-12-19 | Compressor and reservoir thereof |
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| Country | Link |
|---|---|
| CN (1) | CN204373285U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020181763A1 (en) * | 2019-03-13 | 2020-09-17 | 珠海格力电器股份有限公司 | Eddy current tuned mass damper, compressor assembly and air conditioner |
| CN113883764A (en) * | 2021-11-08 | 2022-01-04 | 广东美芝制冷设备有限公司 | Liquid storage device, compressor assembly and refrigeration equipment |
| CN114017341A (en) * | 2021-11-08 | 2022-02-08 | 广东美芝制冷设备有限公司 | Compressor assembly and refrigeration equipment |
-
2014
- 2014-12-19 CN CN201420835799.1U patent/CN204373285U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020181763A1 (en) * | 2019-03-13 | 2020-09-17 | 珠海格力电器股份有限公司 | Eddy current tuned mass damper, compressor assembly and air conditioner |
| CN113883764A (en) * | 2021-11-08 | 2022-01-04 | 广东美芝制冷设备有限公司 | Liquid storage device, compressor assembly and refrigeration equipment |
| CN114017341A (en) * | 2021-11-08 | 2022-02-08 | 广东美芝制冷设备有限公司 | Compressor assembly and refrigeration equipment |
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