CN211372618U - Air conditioner noise reduction structure and air conditioner - Google Patents
Air conditioner noise reduction structure and air conditioner Download PDFInfo
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- CN211372618U CN211372618U CN201922456605.2U CN201922456605U CN211372618U CN 211372618 U CN211372618 U CN 211372618U CN 201922456605 U CN201922456605 U CN 201922456605U CN 211372618 U CN211372618 U CN 211372618U
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Abstract
The utility model discloses a structure and air conditioner of making an uproar falls in air conditioner, the structure of making an uproar falls in air conditioner includes: the connecting pipe, the expansion valve, the capillary tube and the two-way valve are sequentially connected and form a heat exchange pipeline; the heat exchange pipeline is provided with at least two bubble breaking structures, and two of the at least two bubble breaking structures are respectively arranged on the connecting pipe and between the capillary tube and the two-way valve. In the utility model, when the liquid refrigerant is circulated to the connecting pipe, the liquid refrigerant is easy to be subjected to friction resistance pressure drop and flash into a gas-liquid two-phase refrigerant, and a bubble breaking structure is arranged at the refrigerant, which is beneficial to breaking flash bubbles in time; in addition, set up broken bubble structure between capillary and two-way valve, help further eliminating the not complete ruptured bubble in the refrigerant to effectively improve the flow stability of refrigerant, reduce the flow noise of refrigerant.
Description
Technical Field
The utility model relates to an air conditioner technical field, concretely relates to structure and air conditioner of making an uproar falls in air conditioner.
Background
With the development of the technology, the frequency range of the existing air conditioner, such as a variable frequency air conditioner, can reach 10-120 Hz, and the air conditioner can provide wider comfort for users and save more energy. However, since the frequency range of the inverter air conditioner is too wide, in some specific operating environments, an extremely unpleasant refrigerant sound is generated outside the room, and the refrigerant sound is discontinuous and takes on a sudden change of a sine wave type, so that the ear is stimulated, and the use experience of a user is reduced.
The air conditioner generally comprises a condenser, an evaporator and a compressor which are connected by pipelines, when the supercooling degree of a refrigerant is large enough in a refrigeration mode, the refrigerant flowing out of the condenser is generally in a single-phase liquid state, flows stably and generally does not generate refrigerant noise; however, when the refrigerant is cooled by the refrigerant, and the flash steam is generated by pressure reduction, the refrigerant changes from a single-phase liquid state to a gas-liquid two-phase state, and bubbles of the refrigerant are generated, so that the flow stability of the refrigerant is reduced, and then, larger flow noise is caused. The noise is conducted to the pipe wall and the shell through the refrigerant and then radiated to the external environment, which is the root of the refrigerant flow noise.
Therefore, the noise reduction structure of the present air conditioner and the air conditioner still need to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an air conditioner noise reduction structure and air conditioner aims at reducing the refrigerant noise of air conditioner.
In order to achieve the above object, the utility model provides a structure of making an uproar falls in air conditioner, include: the connecting pipe, the expansion valve, the capillary tube and the two-way valve are sequentially connected and form a heat exchange pipeline;
the heat exchange pipeline is provided with at least two bubble breaking structures, and two of the at least two bubble breaking structures are respectively arranged on the connecting pipe and between the capillary pipe and the two-way valve.
Optionally, the bubble breaking structure comprises: the filter screen, the mesh number of filter screen is 80 ~ 120.
Optionally, the outer diameter of the connecting pipe is 5-7 mm; and/or the presence of a gas in the gas,
the length of the connecting pipe is 20-50 times of the outer diameter of the connecting pipe.
Optionally, the inner diameter of the capillary tube is 1.4-1.9 mm.
Optionally, the outer diameter of the two-way valve is 4.76-5 mm.
Optionally, the air conditioner noise reduction structure further includes: and the connecting piece is connected with the connecting pipe, the expansion valve and the capillary tube.
Optionally, the connector comprises: a base body; and the three slots are formed on the seat body and respectively used for clamping and limiting the connecting pipe, the expansion valve and the capillary tube.
Optionally, the connecting member is made of a rubber material.
Optionally, the air conditioner noise reduction structure further includes: and the damping structure is arranged around the periphery of the expansion valve.
In addition, in order to achieve the above object, the present invention also provides an air conditioner, which includes the air conditioner noise reduction structure described above.
In the technical scheme provided by the utility model, because the liquid refrigerant is easy to be subjected to friction resistance pressure drop and flash into a gas-liquid two-phase refrigerant when flowing to the connecting pipe, a foam breaking structure is arranged at the position, which is beneficial to breaking flash bubbles in time; in addition, set up broken bubble structure between capillary and two-way valve, help further eliminating the not complete ruptured bubble in the refrigerant to effectively improve the flow stability of refrigerant, reduce the flow noise of refrigerant.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic perspective view of an embodiment of an air conditioner according to the present invention;
fig. 2 is a perspective view of the noise reduction structure of fig. 1;
FIG. 3 is a schematic view of the heat exchange circuit of FIG. 1;
fig. 4 is a schematic view of the connector of fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
2 | |
| 101 | Noise reduction structure of |
3 | Connecting |
| 1 | |
31 | |
| 11 | Connecting |
32 | Slotting |
| 12 | |
4 | |
| 13 | |
102 | |
| 14 | Two-way valve |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
With the development of the technology, the frequency range of the existing air conditioner, such as a variable frequency air conditioner, can reach 10-120 Hz, and the air conditioner can provide wider comfort for users and save more energy. However, since the frequency range of the inverter air conditioner is too wide, in some specific operating environments, an extremely unpleasant refrigerant sound is generated outside the room, and the refrigerant sound is discontinuous and takes on a sudden change of a sine wave type, so that the ear is stimulated, and the use experience of a user is reduced.
The air conditioner generally comprises a condenser, an evaporator and a compressor which are connected by pipelines, when the supercooling degree of a refrigerant is large enough in a refrigeration mode, the refrigerant flowing out of the condenser is generally in a single-phase liquid state, flows stably and generally does not generate refrigerant noise; however, when the refrigerant is cooled by the refrigerant, and the flash steam is generated by pressure reduction, the refrigerant changes from a single-phase liquid state to a gas-liquid two-phase state, and bubbles of the refrigerant are generated, so that the flow stability of the refrigerant is reduced, and then, larger flow noise is caused. The noise is conducted to the pipe wall and the shell through the refrigerant and then radiated to the external environment, which is the root of the refrigerant flow noise.
In view of this, the present invention provides an air conditioner, fig. 1 is an embodiment of the air conditioner provided by the present invention, the air conditioner 100 includes: the noise reduction structure 101, the condenser 102 and the evaporator (not shown in the figure) of the air conditioner, fig. 2 to fig. 4 are the embodiments of the noise reduction structure 101 of the air conditioner provided by the present invention, because the main inventive point of the present invention lies in the improvement of the noise reduction structure 101 of the air conditioner, the following description mainly refers to the noise reduction structure 101 of the air conditioner with specific drawings.
Referring to fig. 1 to 3, the noise reduction structure 101 of an air conditioner according to the present invention includes: a connecting pipe 11, an expansion valve 12, a capillary tube 13 and a two-way valve 14 which are connected in sequence and form the heat exchange pipeline 1; the heat exchange pipeline 1 is provided with at least two bubble breaking structures 2, two of the at least two bubble breaking structures 2 are respectively arranged on the connecting pipe 11 and between the capillary tube 13 and the two-way valve 14.
In the technical scheme provided by the utility model, because the liquid refrigerant is easy to be subjected to friction resistance pressure drop and flash into a gas-liquid two-phase refrigerant when flowing to the connecting pipe 11, the foam breaking structure 2 is arranged at the position, which is helpful for breaking flash bubbles in time; in addition, the refrigerant outlet of the capillary tube 13 is provided with a bubble breaking structure, which is helpful for further eliminating incompletely broken bubbles in the refrigerant, thereby effectively improving the flow stability of the refrigerant and reducing the flow noise of the refrigerant.
It should be noted that the heat exchange pipeline 1 in this design is preferably applied between the condenser 102 and the evaporator, a refrigerant inlet (the connection pipe 11) of the heat exchange pipeline 1 is communicated with a refrigerant outlet of the condenser 102, and a refrigerant outlet (the two-way valve 14) of the heat exchange pipeline 1 is directly or indirectly communicated with a refrigerant inlet of the evaporator, so that refrigerant flows along a refrigerant flowing direction from the condenser 102 into the heat exchange pipeline 1, through the heat exchange pipeline 1, and out of the evaporator. That is, the air conditioner includes the air conditioner noise reduction structure 101 described above, the connection pipe 11 in the air conditioner noise reduction structure 101 communicates with the condenser 102, and the two-way valve 14 in the air conditioner noise reduction structure 101 communicates with the evaporator directly or indirectly.
In addition, in practical applications, a throttling device, such as various throttling valves, is generally disposed on the pipeline between the condenser 102 and the evaporator, and the throttling valve plays roles in throttling, reducing pressure, regulating flow and the like. Specifically, in the present embodiment, the expansion valve 12 may be used as a throttling device, and the specific type of the expansion valve 12 is not limited in the present design, for example, an electronic expansion valve may be selected; the capillary tube 13 can be used as a throttling device and a silencing device, when the refrigerant noise generated in the expansion valve 12 flows to the capillary tube 13 along the flow direction, the refrigerant noise is reflected by sound waves due to the sharp reduction of the flow cross section area, so that the energy of the refrigerant noise continuously propagating forwards is reduced, and a certain noise reduction effect is achieved; the connection pipe 11 is used for connecting a refrigerant outlet of the condenser 102 and a refrigerant inlet of the expansion valve 12, which is not only convenient for adjusting the installation position and the installation distance between the expansion valve 12 and the condenser 102, but also beneficial for smoothing the flow of the refrigerant; a two-way valve 14 may be disposed between the capillary tube 13 and the evaporator, and of course, in other embodiments, other valve elements such as a three-way valve may also be disposed according to actual needs, and the two-way valve 14 in this embodiment may be used to control the on-off between the condenser 102 and the evaporator, so as to facilitate the overhaul and maintenance of the air conditioner 100.
In the design, the bubble breaking structures 2 can be adjusted to any suitable number according to actual needs and can be arranged at any suitable position on the heat exchange pipeline 1. The number of the bubble breaking structures 2 needs to be set within a reasonable range, because if the number of the bubble breaking structures 2 is too small, the refrigerant bubbles are easy to be broken incompletely and thoroughly; on the contrary, if the number of the bubble breaking structures 2 is too large, the flow rate of the refrigerant is easily affected, and the refrigeration efficiency of the air conditioner 100 is affected. Therefore, in the present embodiment, it is preferable that the number of the bubble breaking structures 2 is set to two. Because the liquid refrigerant is easy to be subjected to friction resistance pressure drop and flash into a gas-liquid two-phase refrigerant when flowing out of the condenser 102 and entering the connecting pipe 11, one of the two bubble breaking structures 2 is arranged on the connecting pipe 11; and the other of the two bubble breaking structures 2 is arranged between the capillary tube 13 and the two-way valve 14 and is used for acting on the refrigerant flowing out from the capillary tube 13 so as to further eliminate the refrigerant bubbles which are not completely broken in the refrigerant, thereby enabling the refrigerant entering the two-way valve 14 to form a very stable flow state.
It should be noted that, there are various specific schemes for the bubble breaking structure 2 for implementing the above functions, wherein for example, a plurality of support ribs may be spanned at a desired position of the heat exchange pipeline 1, and the plurality of support ribs form the bubble breaking structure 2. In the present embodiment, however, the bubble breaking structure 2 includes a filter screen, and the filter screen may be directly transversely disposed at a desired position of the heat exchange pipeline 1; or, the body which can be provided with the bubble breaking structure 2 is provided with a cavity which is provided with an inlet and an outlet communicated with the heat exchange pipeline 1, and the filter screen is transversely arranged in the cavity, so that the filter screen is more convenient to disassemble and replace; the cross-sectional area of the cavity can be selected to be larger than that of the heat exchange pipeline 1 at the position, so that the refrigerant flow in unit time period can be improved, and the refrigerant bubble breaking efficiency can be improved. Furthermore, the mesh number of the filter screen needs to be set within a reasonable range, and if the mesh number of the filter screen is smaller, the number of the filter holes of the filter screen is smaller and the aperture is larger, so that the puncturing efficiency of the refrigerant bubbles is not high, namely the effect of reducing the noise of the refrigerant is insufficient; on the contrary, if the mesh number of the filter screen is larger, the number of the filter holes of the filter screen is larger and the aperture is smaller, so that the flow rate of the refrigerant is easily retarded to a certain degree, and the refrigeration efficiency of the air conditioner is reduced. Therefore, in the present embodiment, the mesh number of the filter screen is 80 to 120, and preferably 100.
Further, in the present embodiment, the outer diameter of the connecting pipe 11 is 5 to 7mm, preferably 7mm, in a specific embodiment, the specification of the connecting pipe 11 may be set to be 7 × 0.6, where 7 denotes that the outer diameter of the connecting pipe 11 is 7mm, and 0.6 denotes that the wall thickness of the connecting pipe 11 is 0.6mm, at this time, the inner diameter of the connecting pipe 11 is corresponding to 5.8mm, and is more adapted to the inner diameter of an internal threaded pipe with the outer diameter of 7mm, so as to help improve the friction resistance pressure drop when the refrigerant enters the connecting pipe 11 from the condenser 102, and reduce the flash of the liquid refrigerant into the gas-liquid two-phase refrigerant. In the flowing direction of the refrigerant, the refrigerant flowing out of the connecting pipe 11 enters the expansion valve 12 and the capillary tube 13 in sequence, and if the refrigerant in a gas-liquid two-phase state flows unstably and directly enters the capillary tube 13 for throttling, the refrigerant is easy to generate severe turbulence pulsation at the refrigerant inlet of the capillary tube 13, and then severe injection noise is formed at the refrigerant outlet of the capillary tube 13 by the refrigerant. Therefore, in order to stabilize the flow of the refrigerant, the length of the connection pipe 11 needs to be set within a reasonable range, in this embodiment, the length of the connection pipe 11 may be set to be 20 to 50 times, and preferably 40 times, of the outer diameter of the connection pipe 11, because if the length of the connection pipe 11 is set to be large, the installation of the heat exchange pipeline 1 and other components in the limited space of the casing of the air conditioner 100 is easily affected; on the contrary, if the length of the connecting pipe 11 is set to be small, it is not favorable for the refrigerant to flow smoothly in the pipe, and the noise of the refrigerant is increased. Specifically, when the outer diameter of the connection pipe 11 is selected to be 7mm as described above, the length of the connection pipe 11 is preferably 280 mm. Of course, the setting schemes of the pipe diameter and the pipe length of the connecting pipe 11 can be selected alternatively, or simultaneously selected and applied to the same air conditioner 100, which is not described herein again.
In addition, in the embodiment, the inner diameter of the capillary 13 is 1.4 to 1.9mm, preferably 1.9mm, and the specific specification may be selected as 3 × 1.9 × 200mm, where Φ 3 means the outer diameter of the capillary 13 is 3mm, Φ 1.9 means the inner diameter of the capillary 13 is 1.9mm, and 200mm means the tube length of the capillary 13. In view of the above, on the one hand, the capillary tube 13 can be used as a sound-damping device; on the other hand, the capillary 13 may assist in throttling at the same time. When in use, the capillary tube 13 can be welded at the refrigerant outlet end of the expansion valve 12, thereby increasing the supercooling degree after throttling and inhibiting the generation of refrigerant flash bubbles.
In this embodiment, the outer diameter of the two-way valve 14 is 4.76 to 5mm, preferably 4.76mm, and the specific specification may be selected to be 4.76 × 0.7, where 4.76 denotes that the outer diameter of the two-way valve 14 is 4.76mm, 0.7 denotes that the wall thickness of the two-way valve 14 is 0.7mm, and at this time, the inner diameter of the two-way valve 14 is correspondingly 3.36 mm. Similarly, the arrangement of the capillary tube 13 and the two-way valve 14 can be selected alternatively or simultaneously and applied to the same air conditioner 100, which is not described herein.
In addition, referring to fig. 2 to 4, in the present embodiment, the noise reduction structure 101 of the air conditioner further includes: the connecting piece 3, the connecting piece 3 connects the connecting pipe 11, the expansion valve 12 and the capillary tube 13, so that the connecting pipe 11, the expansion valve 12 and the capillary tube 13 are connected into a whole, the connecting piece 3 can assist the installation of the connecting pipe 11, the expansion valve 12 and the capillary tube 13, avoid the three from being distributed in the air conditioner 100 disorderly, and also prevent the connecting pipe 11, the expansion valve 12 and the capillary tube 13 from resonating with the whole machine due to the influence of the vibration of the whole machine during the operation process of the air conditioner 100, especially during the low-frequency operation of the air conditioner 100, and amplify the refrigerant.
Of course, there are various technical solutions of the connecting member 3 for realizing the above-mentioned functions, for example, the connecting tube 11, the expansion valve 12 and the capillary tube 13 may be bound by an adhesive tape or a binding band. However, in the present embodiment, the optional connection member 3 includes: the seat body 31, three slots 32 formed on the seat body 31, the three slots 32 respectively hold the limit connecting pipe 11, the expansion valve 12 and the capillary 13. The seat body 31 can be arranged into a plate shape with smaller thickness or a block shape with larger thickness according to actual needs; the specific opening positions and the extending directions of the three slots 32 can be adjusted according to actual needs, and the slot widths of the three slots 32 are respectively adapted to the outer diameter settings of the corresponding positions of the connecting pipe 11, the expansion valve 12 and the capillary 13, and the size of the slot width can be slightly smaller than the outer diameter settings of the corresponding positions, so that a good clamping and limiting effect can be realized. In addition, the three slots 32 are not limited to be arranged in a collinear manner, two connecting lines of the three slots can be arranged in a crossed included angle, and the specific included angle is set according to practical application so as to correspondingly adjust the installation of the connecting pipe 11, the expansion valve 12 and the capillary 13 and be more suitable for the space in the shell of the air conditioner 100, so that the structure in the air conditioner 100 is compact.
Further, in the present embodiment, the connecting member 3 is made of rubber. For example, the connector 3 is made of isobutylene rubber. The rubber material has certain elasticity to have certain bradyseism effect, can be when connecting pipe 11, expansion valve 12 and capillary 13 and become an organic whole, damping three's vibration, thereby help gently the flow of the refrigerant in the heat transfer pipeline 1, reduce its refrigerant noise. In addition, the connecting piece 3 is elastically arranged, so that the connecting pipe 11, the expansion valve 12 and the capillary 13 are clamped and elastically abutted at the three slots 32, and the connecting pipe 11, the expansion valve 12 and the capillary 13 are prevented from being collided and damaged.
In addition, in the present embodiment, the air conditioner noise reduction structure 101 further includes a damping structure 4, and the damping structure 4 is disposed around the outer periphery of the expansion valve 12. Specifically, the damping structure 4 may be a continuous structure to completely cover the outer periphery of the expansion valve 12; the damping structure 4 may also be of a discontinuous configuration to cover at least a partial area of the peripheral outer wall of the expansion valve 12. The damping structure 4 is, for example, a vibration-proof adhesive, which is attached to the peripheral outer wall of the expansion valve 12 and has a sufficient thickness, so that when the expansion valve 12 is driven to resonate by the vibration of the whole air conditioner 100 during operation, and the noise of the refrigerant is amplified, the damping structure 4 can be used for eliminating the vibration transmission of the noise and is helpful for improving the flow stability of the refrigerant.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. An air conditioner noise reduction structure, comprising:
the connecting pipe, the expansion valve, the capillary tube and the two-way valve are sequentially connected and form a heat exchange pipeline;
the heat exchange pipeline is provided with at least two bubble breaking structures, and two of the at least two bubble breaking structures are respectively arranged on the connecting pipe and between the capillary pipe and the two-way valve.
2. The air conditioner noise reduction structure of claim 1, wherein the bubble breaking structure comprises:
the filter screen, the mesh number of filter screen is 80 ~ 120.
3. The noise reduction structure of an air conditioner according to claim 1, wherein the outer diameter of the connection pipe is 5 to 7 mm; and/or the presence of a gas in the gas,
the length of the connecting pipe is 20-50 times of the outer diameter of the connecting pipe.
4. The noise reduction structure of an air conditioner according to claim 1, wherein the capillary tube has an inner diameter of 1.4 to 1.9 mm.
5. The noise reduction structure of an air conditioner according to claim 1, wherein the two-way valve has an outer diameter of 4.76 to 5 mm.
6. The air conditioner noise reduction structure as claimed in claim 1, further comprising:
and the connecting piece is connected with the connecting pipe, the expansion valve and the capillary tube.
7. The air conditioner noise reduction structure as set forth in claim 6, wherein said connecting member comprises:
a base body;
and the three slots are formed on the seat body and respectively used for clamping and limiting the connecting pipe, the expansion valve and the capillary tube.
8. The noise reducing structure of an air conditioner according to claim 6, wherein the connecting member is made of rubber.
9. The air conditioner noise reduction structure as claimed in claim 1, further comprising:
and the damping structure is arranged around the periphery of the expansion valve.
10. An air conditioner characterized in that it comprises an air conditioner noise reduction structure as set forth in any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922456605.2U CN211372618U (en) | 2019-12-30 | 2019-12-30 | Air conditioner noise reduction structure and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922456605.2U CN211372618U (en) | 2019-12-30 | 2019-12-30 | Air conditioner noise reduction structure and air conditioner |
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| CN211372618U true CN211372618U (en) | 2020-08-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005652A1 (en) * | 2021-07-26 | 2023-02-02 | 合肥海尔电冰箱有限公司 | Connecting pipeline of evaporator, evaporator and refrigerator |
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2019
- 2019-12-30 CN CN201922456605.2U patent/CN211372618U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005652A1 (en) * | 2021-07-26 | 2023-02-02 | 合肥海尔电冰箱有限公司 | Connecting pipeline of evaporator, evaporator and refrigerator |
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