CN204628942U - Pipeline balancing weight and the air conditioner with it - Google Patents
Pipeline balancing weight and the air conditioner with it Download PDFInfo
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- CN204628942U CN204628942U CN201520321544.8U CN201520321544U CN204628942U CN 204628942 U CN204628942 U CN 204628942U CN 201520321544 U CN201520321544 U CN 201520321544U CN 204628942 U CN204628942 U CN 204628942U
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Abstract
The utility model discloses a kind of pipeline balancing weight and there is its air conditioner.This pipeline balancing weight comprises: the mother tuber of hollow, and the periphery wall of mother tuber is provided with multiple jack; The public block of at least one pipeline, the positioning part that the public block of pipeline comprises auxiliary section and is connected with auxiliary section, auxiliary section is provided with the through hole being suitable for coordinating with pipeline, positioning part is provided with the opening be communicated with through hole, opening extends to the sidewall of positioning part, opening runs through positioning part to be separated out two the first subdivisions on the bearing of trend of through hole, positioning part through jack to reduce the gap two subassemblies; At least one regulates public block, and the public block of each adjustment comprises insertion part and adjusting portion, and jack is passed to make to regulate public block to be removably located on mother tuber in insertion part.According to pipeline balancing weight of the present utility model, when the ocsillator strenght of pipeline is different, the weight of adjustable pipeline balancing weight, thus the effect of the damping noise reduction of pipeline balancing weight can be improved, and then improve the practicability of pipeline balancing weight.
Description
Technical field
The utility model relates to air-conditioning technical field, particularly relates to a kind of pipeline balancing weight and has its air conditioner.
Background technique
When the natural frequency of the frequency that the excitation force be delivered on air conditioning pipe system when compressor equal excitation source is corresponding and pipe-line system is close, the corresponding mode of pipe-line system can be excited, pipe-line system is caused to resonate, the vibration & noise of air-conditioning system is made to become large, may make simultaneously pipeline because of amplitude and stress excessive and be damaged, affect the security of operation of air-conditioning system.In order to prevent pipeline from resonating, on pipeline, usually increasing the pipeline balancing weight of extra fine quality, making the natural frequency of pipeline avoid some larger frequency ranges of excitation force, reduce amplitude and the stress of pipeline.
At present, in order to meet generalization and the standardization of counterweight, for the pipeline of same diameter, the kind of balancing weight is very limited, is generally less than three kinds.And, existing air-conditioning duct balancing weight quality can not regulate, when being optimized pipeline, the balancing weight with optimized quality can not be joined according to the dynamics of pipeline to pipeline is attached, existing balancing weight under causing a lot of situation, cannot be utilized to solve the resonance problem of pipeline.
Meanwhile, existing balancing weight utilizes constricting belt itself and pipeline to be fixed usually, and need to wipe out constricting belt afterbody after constricting belt is tightened, installation efficiency is lower.And due to air-conditioning duct balancing weight work under bad environment, after working for a long time, constricting belt can produce because of aging to loosen and even rupture, and makes pipeline balancing weight lose efficacy.
Model utility 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 proposes a kind of pipeline balancing weight, this pipeline balancing weight can improve efficiency of assembling, and can regulate the weight of pipeline balancing weight, improves the dependable with function of pipeline balancing weight.
The utility model also proposed a kind of air conditioner with above-mentioned pipeline balancing weight.
Comprise according to pipeline balancing weight of the present utility model: the mother tuber of hollow, the periphery wall of described mother tuber is provided with multiple jack; The public block of at least one pipeline, the positioning part that the public block of described pipeline comprises auxiliary section and is connected with described auxiliary section, described auxiliary section is provided with the through hole being suitable for coordinating with pipeline, described positioning part is provided with the opening be communicated with described through hole, described opening extends to the sidewall of described positioning part, described opening runs through described positioning part to be separated out two the first subdivisions on the bearing of trend of described through hole, described positioning part through described jack to reduce the gap described two subassemblies; At least one regulates public block, and the public block of each adjustment comprises insertion part and adjusting portion, and described insertion part is removably located on described mother tuber to make the public block of described adjustment through described jack.
According to pipeline balancing weight of the present utility model, mother tuber be connected with the public block of pipeline and regulate public block, when the ocsillator strenght of pipeline is different, connect on mother tuber according to actual conditions or remove and regulate public block, to regulate the weight of pipeline balancing weight, thus the effect of the damping noise reduction of pipeline balancing weight can be improved, and then improve the practicability of pipeline balancing weight.
Alternatively, the outer side wall away from each other of described two the first subdivisions is provided with locating slot, is enclosed within described locating slot outside described mother tuber.
Alternatively, the outer side wall being positioned at the part of described mother tuber of described two the first subdivisions is tilting to extend towards the direction of described through hole along direction away from each other.
Alternatively, on the bearing of trend of described through hole, the height of described positioning part is equal to or less than the height of described auxiliary section.
Alternatively, described insertion part comprises spaced two the second subdivisions, and described insertion part makes the gap described two the second subdivisions reduce through described jack.
Alternatively, the opposing sidewalls of described insertion part is respectively equipped with mating groove, the part around described jack of described mother tuber is positioned at described mating groove.
Alternatively, the opposing sidewalls being positioned at the part of described mother tuber of described insertion part is formed as on the direction towards described adjusting portion along the inclined-plane that direction surface thereof away from each other extends.
Alternatively, described mother tuber is formed as the cuboid of hollow, and four sidewalls of described cuboid are respectively equipped with a described jack.
Alternatively, described auxiliary section is formed as cuboid or cylindrical body.
In addition this practicability is novel also proposed a kind of air conditioner, and this air conditioner comprises pipeline and above-mentioned pipeline balancing weight, and wherein, the diameter of pipeline is greater than the diameter of through hole, and pipeline and through hole interference fit, can strengthen the constant intensity of pipeline and pipeline balancing weight thus.And by the cooperation of the public block of pipeline and mother tuber, pipeline and pipeline balancing weight are connected and fixed, by regulating the weight of the adjustable pipeline balancing weight of the connection of public block and mother tuber, thus the effect of pipeline balancing weight damping noise reduction can be improved, and then improve the practicability of pipeline balancing weight.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pipeline balancing weight according to the utility model embodiment;
Fig. 2 is the structural representation according to the public block of the pipeline of the pipeline balancing weight of the utility model embodiment;
Fig. 3 is the structural representation according to the public block of the pipeline of the pipeline balancing weight of another embodiment of the utility model;
Fig. 4 is the structural representation according to the public block of the adjustment of the pipeline balancing weight of the utility model embodiment;
Fig. 5 is the structural representation according to the public block of the adjustment of the pipeline balancing weight of another embodiment of the utility model;
Fig. 6 is the structural representation of the mother tuber of pipeline balancing weight according to the utility model embodiment.
Reference character:
100: pipeline balancing weight;
1: the public block of pipeline, 11: auxiliary section, 111: through hole, 12: positioning part, 121: the first subdivisions, 122: locating slot, the outer side wall being positioned at the part of mother tuber of 124: the first subdivisions, 13: opening;
2: mother tuber, 21: jack;
3: regulate public block, 31: adjusting portion, 32: insertion part, 321: the second subdivisions, 322: mating groove, the gap between 33: two the second subdivisions, 323: insertion part is positioned at the sidewall of the part of mother tuber.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, " orientation or the position relationship of the instruction such as " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, interior ", " outward " are based on orientation shown in the drawings or position relationship to term, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint 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 characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; 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, unless otherwise clear and definite restriction.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.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
Describe the pipeline balancing weight 100 according to the utility model embodiment below with reference to Fig. 1-Fig. 6, this pipeline balancing weight 100 can be applied in the quality for increasing the pipeline in air conditioner in air conditioner.
As shown in Figure 1, mother tuber 2, the public block 1 of pipeline can be comprised according to the pipeline balancing weight 100 of the utility model embodiment and regulate public block 3.Wherein the material of mother tuber 2 or can regulate public block 3 identical with the public block 1 of pipeline, and the material of mother tuber 2 can also be the other materials such as rigid plastics, metal.
As shown in figures 1 to 6, mother tuber 2 is structures of hollow, and the periphery wall of the mother tuber 2 of hollow is provided with multiple jack 21, and the public block 1 of pipeline can be connected with mother tuber 2 through jack 21 with the public block 3 of adjustment.
The public block 1 of pipeline comprises auxiliary section 11 and positioning part 12, and auxiliary section 11 is provided with the through hole 111 being suitable for coordinating with pipeline, and for through hole 111, the position of through hole 111 on auxiliary section 11 can require to adjust according to the bias of pipeline balancing weight 100 counterweight.Pipeline can be connected with auxiliary section 11 through through hole 111, that is, is enclosed within part pipeline outside auxiliary section 11, to increase the weight of pipeline, thus can plays the effect of damping noise reduction to pipeline.Wherein, the diameter of through hole 111 can be less than the diameter of pipeline, makes through hole 111 and pipeline interference fit, and then strengthens being fixedly connected with between pipeline and through hole 111, avoids because pipeline balancing weight 100 is moved on pipeline and reduces the effect of pipeline balancing weight 100.
Shown in composition graphs 1, Fig. 2 and Fig. 3, positioning part 12 is connected with auxiliary section 11, to be fixed auxiliary section 11, particularly, positioning part 12 is provided with the opening 13 be communicated with through hole 111, pipeline can be reduced through pressure during through hole 111, so that the assembling between pipeline and auxiliary section 11 by being provided with opening 13.Opening 13 extends to the sidewall of positioning part 12, opening 13 runs through positioning part 12 to be separated out two the first subdivisions 121 on the bearing of trend of through hole 111, like this, gap is formed between two the first subdivisions 121, when positioning part 12 is through jack 21, portion extrusion two the first subdivisions 121 around jack 21 of mother tuber 2 are to reduce the gap between two the first subdivisions 121, and then reduce opening 13, strengthen the constant intensity between pipeline and through hole 111, thus the public block 1 of pipeline can be avoided to come off from pipeline.
The public block 1 of pipeline can be at least one, that is, the public block 1 of pipeline can be one, the public block 1 of pipeline also can be multiple, and for the diameter of the through hole 111 of the public block 1 of pipeline, the diameter of the through hole 111 of the public block 1 of multiple pipeline can be different, thus be suitable for being connected with the pipeline of different-diameter, it is appreciated of course that the diameter of the public block 1 of multiple pipeline also can be identical, thus can simplify the production technology of the public block 1 of pipeline.For the weight of the public block 1 of multiple pipeline, the weight of the public block 1 of multiple pipeline can be different, like this, the public block 1 of the pipeline of Different Weight can be selected according to the ocsillator strenght of pipeline, damping noise reduction is carried out to pipeline, certainly, the weight of the public block 1 of multiple pipeline also can be identical, so that the manufacturing of the public block 1 of pipeline.
As shown in Figure 1 and Figure 5, pipeline balancing weight 100 of the present utility model can also comprise at least one and regulate public block 3, regulate public block 3 for regulating the weight of pipeline balancing weight 100, the public block 3 of each adjustment includes insertion part 32 and adjusting portion 31, and jack 21 is passed to make to regulate public block 3 to be removably located on mother tuber 2 in insertion part 32.Like this, when pipeline vibration amplitude is larger, regulates public block 3 to increase the weight of pipeline balancing weight 100 by inserting on mother tuber 2, improving the effect of the damping noise reduction of pipeline balancing weight 100, when the vibration of pipeline reduces, the public block 3 of adjustment can be removed.For the public block 3 of adjustment, the weight of the public block of each adjustment 3 can be different, thus, when the ocsillator strenght of pipeline is different, can selects the public block 3 of the adjustment of different weight according to actual conditions or connect the public block 3 of multiple adjustment.
According to the pipeline balancing weight 100 of the utility model embodiment, mother tuber 2 be connected with the public block 1 of pipeline and regulate public block 3, when the ocsillator strenght of pipeline is different, connect on mother tuber 2 according to actual conditions or remove and regulate public block 3, to regulate the weight of pipeline balancing weight 100, thus the effect of the damping noise reduction of pipeline balancing weight 100 can be improved, and then improve the practicability of pipeline balancing weight 100.
It is appreciated of course that the public block 1 of pipeline also can use with making adjustments public block 3, to regulate the weight of pipeline balancing weight 100, thus can reduce the production material of pipeline balancing weight 100, reduce cost of production.
As shown in Figures 2 and 3, the outer side wall away from each other of two the first subdivisions 121 is provided with locating slot 122, is enclosed within locating slot 122 outside mother tuber 2.During in positioning part 12 through jack 21, mother tuber 2 to realize the fixing and location between mother tuber 2 and the public block 1 of pipeline, thus can avoid the public block 1 of pipeline to come off from mother tuber 2 by locating slot 122 snap-fit engagement.
The outer side wall 124 being positioned at the part of mother tuber 2 of two the first subdivisions 121 is tilting to extend towards the direction of through hole 111 along direction away from each other.The angle of inclination of the outer side wall 124 being positioned at the part of mother tuber 2 of two the first subdivisions 121 is less than 90 degree.As shown in Figures 2 and 3, the part being positioned at mother tuber 2 of two the first subdivisions 121 can be formed as cone, carry out in installation process at public block and mother tuber 2, positioning part 12 and jack 21 interference fit, when positioning part 12 is through jack 21, the part being positioned at mother tuber 2 of two the first subdivisions 121 not only can stop that mother tuber 2 comes off from positioning part 12, is locked on pipeline by pipeline balancing weight 100, simultaneously because outer side wall 124 tilts to extend, be convenient to positioning part 12 through jack 21.
In example as shown in Figure 2, on the bearing of trend of through hole 111, the height of positioning part 12 equals the height of auxiliary section 11, thus the constant intensity of the public block 1 of pipeline and mother tuber 2 can be strengthened, in example as shown in Figure 3, the height of positioning part 12 is less than the height of auxiliary section 11, thus can save the production material of positioning part 12, reduces cost of production.In brief, on the bearing of trend of through hole 111, the height of positioning part 12 can be equal to or less than the height of auxiliary section 11.
In preferred embodiments more of the present utility model, as shown in Figure 4, insertion part 32 comprises spaced two the second subdivisions 321, and insertion part 32 makes the gap 33 two the second subdivisions 321 reduce through jack 21.That is, insert in the process of jack 21 in insertion part 32, jack 21 can be passed in insertion part 32 under the effect of external force, interference fit between insertion part 32 and jack 21, gap 33 between two the second subdivisions 321 is reduced, thus strengthens being connected and fixed between mother tuber 2 and two the second subdivisions 321.
As shown in Figure 4 and Figure 5, the opposing sidewalls of insertion part 32 can be respectively equipped with mating groove 322, and after jack 21 is inserted in insertion part 32, the part around jack 21 of mother tuber 2 is positioned at mating groove 322, be convenient to regulate being connected and fixed of public block 3 and mother tuber 2, avoid regulating public block 3 to come off from mother tuber 2.
In embodiments more of the present utility model, the opposing sidewalls 323 being positioned at the part of mother tuber 2 of insertion part 32 is formed as on the direction towards adjusting portion 31 along the inclined-plane that direction surface thereof away from each other extends.As shown in Figure 1 and Figure 4, the part being positioned at mother tuber 2 of insertion part 32 can be formed as cone-shaped, like this, insertion part 32 is under external force through after jack 21, the part being positioned at mother tuber 2 of insertion part 32 can stop that insertion part 32 comes off from mother tuber 2, is convenient to insertion part 32 simultaneously and is inserted in mother tuber 2.Alternatively, the part being positioned at mother tuber 2 of insertion part 32 can have elasticity, thus insertion part 32 is more prone to through jack 21.
In the example shown in fig. 6, mother tuber 2 can be formed as the cuboid of hollow, cuboid outer side wall is respectively equipped with a jack 21, like this, mother tuber 2 and/or can regulate public block 3 to be connected with one, two, three or the public blocks 1 of four pipelines, comprising the public block 1 of at least one pipeline, pass through hole 111 to allow pipeline and be connected with pipeline balancing weight 100, public block 1 of other pipeline and/or regulate public block 3 to can be used for the weight of adjustment pipeline balancing weight 100.
For the shape of auxiliary section 11, auxiliary section 11 can be formed as cuboid or cylindrical body.Thus, make the structure of auxiliary section 11 simple, be convenient to manufacture and produce.Be understandable that, the shape of auxiliary section 11 is not limited to this.
For the public block 1 of pipeline, auxiliary section 11 and positioning part 12 can be formed in one part, thus, not only can simplify the production technology of the public block 1 of pipeline, and the Connection Step that can reduce between auxiliary section 11 and positioning part 12, strengthen the join strength between auxiliary section 11 and positioning part 12.
For the public block 3 of adjustment, insertion part 32 and adjusting portion 31 can be formed in one part, thus, not only can simplify the production technology regulating public block 3, and the installation step that can reduce between insertion part 32 and adjusting portion 31, strengthen the join strength between insertion part 32 and adjusting portion 31.
In addition, the utility model also proposed a kind of air conditioner, and this air conditioner comprises pipeline and above-mentioned pipeline balancing weight 100, wherein, pipeline and through hole 111 interference fit, the diameter of pipeline is greater than the diameter of through hole 111, can strengthen the constant intensity of pipeline and pipeline balancing weight 100 thus.By being connected of the public block 1 of pipeline and mother tuber 2 pipeline is fixedly connected with pipeline balancing weight 100, by regulating the weight of the adjustable pipeline balancing weight 100 of the connection of public block 3 and mother tuber 2, thus the weight of adjustable pipeline, improve the effect of the damping noise reduction of pipeline balancing weight 100, improve the practicability of pipeline balancing weight 100.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " 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, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (10)
1. a pipeline balancing weight, is characterized in that, comprising:
The mother tuber of hollow, the periphery wall of described mother tuber is provided with multiple jack;
The public block of at least one pipeline, the positioning part that the public block of described pipeline comprises auxiliary section and is connected with described auxiliary section, described auxiliary section is provided with the through hole being suitable for coordinating with pipeline, described positioning part is provided with the opening be communicated with described through hole, described opening extends to the sidewall of described positioning part, described opening runs through described positioning part to be separated out two the first subdivisions on the bearing of trend of described through hole, described positioning part through described jack to reduce the gap described two subassemblies;
At least one regulates public block, and the public block of each adjustment comprises insertion part and adjusting portion, and described insertion part is removably located on described mother tuber to make the public block of described adjustment through described jack.
2. pipeline balancing weight according to claim 1, is characterized in that, the outer side wall away from each other of described two the first subdivisions is provided with locating slot, is enclosed within described locating slot outside described mother tuber.
3. pipeline balancing weight according to claim 1, is characterized in that, the outer side wall being positioned at the part of described mother tuber of described two the first subdivisions is tilting to extend towards the direction of described through hole along direction away from each other.
4. pipeline balancing weight according to claim 1, is characterized in that, on the bearing of trend of described through hole, the height of described positioning part is equal to or less than the height of described auxiliary section.
5. pipeline balancing weight according to claim 1, is characterized in that, described insertion part comprises spaced two the second subdivisions, and described insertion part makes the gap described two the second subdivisions reduce through described jack.
6. pipeline balancing weight according to claim 1 or 5, it is characterized in that, the opposing sidewalls of described insertion part is respectively equipped with mating groove, the part around described jack of described mother tuber is positioned at described mating groove.
7. pipeline balancing weight according to claim 1, is characterized in that, the opposing sidewalls being positioned at the part of described mother tuber of described insertion part is formed as on the direction towards described adjusting portion along the inclined-plane that direction surface thereof away from each other extends.
8. pipeline balancing weight according to claim 1, is characterized in that, described mother tuber is formed as the cuboid of hollow, and four sidewalls of described cuboid are respectively equipped with a described jack.
9. pipeline balancing weight according to claim 1, is characterized in that, described auxiliary section is formed as cuboid or cylindrical body.
10. an air conditioner, is characterized in that, comprises pipeline and pipeline balancing weight, and described pipeline balancing weight is the pipeline balancing weight according to any one of claim 1-9, described pipeline and described through hole interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520321544.8U CN204628942U (en) | 2015-05-15 | 2015-05-15 | Pipeline balancing weight and the air conditioner with it |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520321544.8U CN204628942U (en) | 2015-05-15 | 2015-05-15 | Pipeline balancing weight and the air conditioner with it |
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| CN204628942U true CN204628942U (en) | 2015-09-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705273A (en) * | 2016-12-28 | 2017-05-24 | 珠海格力电器股份有限公司 | Pipeline vibration damping device and air conditioner |
| CN109828427A (en) * | 2019-02-21 | 2019-05-31 | 苏州佳世达光电有限公司 | Actuating module and projection arrangement comprising this actuating module |
| WO2021088295A1 (en) * | 2019-11-08 | 2021-05-14 | 青岛海尔空调电子有限公司 | Air conditioner outdoor unit and air conditioner |
| CN113432208A (en) * | 2021-06-29 | 2021-09-24 | 珠海格力电器股份有限公司 | Counterweight device capable of adjusting pipeline counterweight, control method and air conditioner |
-
2015
- 2015-05-15 CN CN201520321544.8U patent/CN204628942U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705273A (en) * | 2016-12-28 | 2017-05-24 | 珠海格力电器股份有限公司 | Pipeline vibration damping device and air conditioner |
| CN109828427A (en) * | 2019-02-21 | 2019-05-31 | 苏州佳世达光电有限公司 | Actuating module and projection arrangement comprising this actuating module |
| WO2021088295A1 (en) * | 2019-11-08 | 2021-05-14 | 青岛海尔空调电子有限公司 | Air conditioner outdoor unit and air conditioner |
| CN113432208A (en) * | 2021-06-29 | 2021-09-24 | 珠海格力电器股份有限公司 | Counterweight device capable of adjusting pipeline counterweight, control method and air conditioner |
| CN113432208B (en) * | 2021-06-29 | 2022-04-26 | 珠海格力电器股份有限公司 | Counterweight device capable of adjusting pipeline counterweight, control method and air conditioner |
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