CN212318293U

CN212318293U - Cylinder, compressor and air conditioner with resonance noise elimination

Info

Publication number: CN212318293U
Application number: CN202022223705.3U
Authority: CN
Inventors: 李振浩; 黄健; 曹红军
Original assignee: Guangdong Meizhi Compressor Co Ltd
Current assignee: Guangdong Meizhi Compressor Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-01-08
Anticipated expiration: 2030-09-30

Abstract

The application provides a cylinder, a compressor and an air conditioner with resonance noise elimination. The cylinder with resonance noise elimination comprises a cylinder body, wherein a slide sheet groove is formed in the inner wall of the cylinder body, a resonant cavity, an exhaust notch and a communication channel for communicating the resonant cavity with the exhaust notch are formed in one end face of the cylinder body, the exhaust notch is provided with a flat bottom surface, and the bottom surface of the communication channel is flush with the bottom surface of the exhaust notch. The cylinder with the resonance silencing function has the advantages that the plane is arranged on the bottom surface of the exhaust notch, and the bottom surface of the exhaust notch is flush with the bottom surface of the communicating channel, so that the exhaust notch, the communicating channel and the resonant cavity can form the silencing cavity together, the volume of the silencing cavity is increased, and the silencing effect is improved; and the volume of the exhaust cutout can be reduced, and the clearance volume can be reduced.

Description

Cylinder, compressor and air conditioner with resonance noise elimination

Technical Field

The application belongs to the technical field of compressors, and particularly relates to a cylinder with resonance noise elimination, a compressor and an air conditioner.

Background

As compressor technology matures, the performance of air conditioning compressors is increasing more and more difficult. For better user experience, the noise requirement of the air conditioner compressor during operation is lower and lower, and on the premise of ensuring the compression performance, the operation noise of the compressor is slightly reduced, which often needs a large amount of experiments. Similarly, on the premise of ensuring the operation noise of the compressor, the slightly improved compression performance is usually a great improvement of the compressor structure. Referring to fig. 2, it is common to provide a resonance chamber 230 communicating with the exhaust port 220 on the cylinder body 210 of the cylinder 200, so that the resonance chamber 230 and the communication passage 240 together form a sound-deadening chamber for sound deadening. The performance of the compressor is reduced because the compressed gas is exhausted from the exhaust slits 220, and the space (i.e., the clearance volume) formed by the exhaust slits 220 communicating with the resonance cavity 230 stores part of the compressed gas. In order to reduce the noise of the compressor, the resonant cavity needs to be arranged to be large, which results in the increase of the clearance volume, and the performance of the compressor is reduced, and further the energy efficiency ratio of the air conditioner is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a cylinder with resonance noise elimination, a compressor and an air conditioner, so as to solve the problem that performance and noise elimination of the compressor in the related art are difficult to be compatible.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: the cylinder with the resonance noise elimination function comprises a cylinder body, wherein a slide sheet groove is formed in the inner wall of the cylinder body, a resonant cavity, an exhaust notch and a communication channel for communicating the resonant cavity with the exhaust notch are formed in one end face of the cylinder body, the exhaust notch is provided with a flat bottom face, and the bottom face of the communication channel is flush with the bottom face of the exhaust notch.

In an alternative embodiment, the length of the communication passage is greater than the length of the exhaust slit in the radial direction of the cylinder block.

In an alternative embodiment, the width of the bottom surface of the exhaust slit is greater than or equal to the width of the bottom surface of the communication passage in the circumferential direction of the cylinder block.

In an alternative embodiment, the width of the top of the exhaust slit is larger than the width of the top of the communication passage in the circumferential direction of the cylinder block.

In an alternative embodiment, the side wall surface of the exhaust notch is a flat surface, a curved surface or an arc surface.

In an alternative embodiment, the exhaust slits have a rectangular or trapezoidal cross section perpendicular to the radial direction of the cylinder block.

In an alternative embodiment, the edges of the slide groove are chamfered.

In an alternative embodiment, the minimum distance between the side wall surface of the vent slit and the chamfer is in the range of 0.5-2 mm.

It is a further object of an embodiment of the present application to provide a compressor including a cylinder with resonance silencing as described in any of the above embodiments.

Another object of the embodiments of the present application is to provide an air conditioner including the compressor of the above embodiments.

The cylinder with resonance noise elimination that this application embodiment provided has beneficial effect and lies in: compared with the prior art, the cylinder with the resonance silencing function has the advantages that the plane is arranged on the bottom surface of the exhaust notch, and the bottom surface of the exhaust notch is flush with the bottom surface of the communication channel, so that the exhaust notch, the communication channel and the resonant cavity can form a silencing cavity together, the volume of the silencing cavity is increased, and the silencing effect is improved; and the volume of the exhaust cutout can be reduced, and the clearance volume can be reduced.

The beneficial effect of the compressor that this application embodiment provided lies in: compared with the prior art, the compressor of this application, the cylinder that has resonance noise elimination that has used above-mentioned embodiment both can promote the performance of this compressor, can reduce the noise of this compressor operation again.

The air conditioner provided by the embodiment of the application has the beneficial effects that: compared with the prior art, the air conditioner of the application uses the compressor of the embodiment, so that the air conditioner has low operation noise, and the energy efficiency ratio of the air conditioner can be improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a cylinder in a conventional compressor;

FIG. 2 is a schematic structural diagram of a cylinder with resonance noise elimination according to an embodiment of the present application;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic top view of a cylinder with resonance muffling according to an embodiment of the present application;

fig. 5 is a partial structural schematic diagram of a cylinder with resonance noise elimination according to a second embodiment of the present application.

Wherein, in the drawings, the reference numerals are mainly as follows:

100-cylinders with resonance damping;

110-cylinder body; 120-vent cut; 130-a resonant cavity; 140-a communication channel; 150-a slide groove; 151-chamfering.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the description of the present application, it is to be understood that the terms "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and thus should not be construed as limiting the present application.

Reference throughout this specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

The English abbreviations used in this application correspond to the Chinese and English texts and are explained as follows:

COP, english: coefficient Of Performance; chinese: the refrigeration coefficient, also called energy efficiency ratio, is the ratio of the refrigeration capacity to the compressor power.

SEER, english: a search energy efficiency ratio; chinese: energy consumption efficiency in the refrigeration season. The standard of applying SEER to the inverter air conditioner is GB 21455-2008.

Referring to fig. 2-4, a cylinder 100 with resonance muffling as provided herein will now be described. The cylinder 100 with resonance sound attenuation comprises a cylinder body 110, wherein a sliding vane groove 150 is formed in the inner wall of the cylinder body 110, so that a sliding vane of a compressor can be slidably arranged in the sliding vane groove 150. The cylinder block 110 is provided with a resonance cavity 130, an exhaust notch 120 and a communication channel 140, and the resonance cavity 130, the exhaust notch 120 and the communication channel 140 are all arranged on one end surface of the cylinder block 110, the exhaust notch 120 is positioned on the inner side of the cylinder block 110, and the exhaust notch 120 extends to the inner wall surface of the cylinder block 110, so that the compressed air in the cylinder block 110 can enter the exhaust notch 120, and the two ends of the communication channel 140 respectively extend to the resonance cavity 130 and the exhaust notch 120, so as to discharge the compressed air through the exhaust notch 120; and communication passage 140 and resonant cavity 130 may be muffled in combination. The exhaust notch 120 has a flat bottom surface, that is, the bottom surface of the exhaust notch 120 is a plane, and the bottom surface of the communication channel 140 is flush with the bottom surface of the exhaust notch 120, so that the exhaust notch 120 can also perform a sound damping function, that is, the resonance cavity 130, the communication channel 140 and the exhaust notch 120 together form a sound damping cavity, compared with a mode that only the resonance cavity 130 and the communication channel 140 are combined into a sound damping cavity, the volume of the sound damping cavity on the cylinder body 110 of the embodiment is greatly increased, so that sound damping is performed better, and the sound damping effect is improved. In addition, the bottom surface of the discharge slit 120 is set to be a flat surface, and the bottom surface of the communication channel 140 is made to be flush with the bottom surface of the discharge slit 120, so that the depth of the discharge slit 120 is equal to the depth of the communication channel 140 in the axial direction of the cylinder block 110, and this structure can make the volume of the discharge slit 120 small, thereby reducing the clearance volume formed by the resonance cavity 130, the communication channel 140 and the discharge slit 120, and further improving the performance of the compressor.

Compared with the prior art, the cylinder 100 with resonance sound attenuation provided by the application has the advantages that the plane is arranged on the bottom surface of the exhaust notch 120, and the bottom surface of the exhaust notch 120 is flush with the bottom surface of the communication channel 140, so that the exhaust notch 120, the communication channel 140 and the resonant cavity 130 form a sound attenuation cavity together, the volume of the sound attenuation cavity is increased, and the sound attenuation effect is improved; and the volume of the vent cutout 120 may be reduced, which in turn may reduce the clearance volume.

In one embodiment, referring to fig. 3 and 4, the length of the communication channel 140 in the radial direction of the cylinder 110 is greater than the length of the exhaust slit 120 in the radial direction of the cylinder 110, that is, the length of the communication channel 140 in the radial direction of the cylinder 110 is greater than the length of the exhaust slit 120, so that the resonance chamber 130 is relatively far from the inner wall surface of the cylinder 110 to ensure the strength of the cylinder 110.

In one embodiment, the cross-section of the communication channel 140 is rectangular, i.e., the cross-section in a direction perpendicular to the communication channel 140 is rectangular, to facilitate manufacturing and to facilitate sizing of the communication channel 140.

In one embodiment, the width of the bottom surface of the vent slit 120 is equal to the width of the bottom surface of the communication channel 140, that is, the width of the bottom surface of the vent slit 120 is equal to the width of the bottom surface of the communication channel 140 in the circumferential direction of the cylinder block 110, which may facilitate designing the width of the bottom surface of the vent slit 120 and may reduce the volume of the vent slit 120.

In one embodiment, the width of the bottom surface of the discharge slit 120 is greater than the width of the bottom surface of the communication channel 140, that is, the width of the bottom surface of the discharge slit 120 is greater than the width of the bottom surface of the communication channel 140 in the circumferential direction of the cylinder block 110, which may facilitate designing the width of the bottom surface of the discharge slit 120, and may reduce the volume of the discharge slit 120, and may also reduce the resistance when the discharge slit 120 discharges the compressed gas, facilitating the discharge of the gas.

In one embodiment, the width of the top of the discharge slit 120 is greater than the width of the top of the communication channel 140 in the circumferential direction of the cylinder body 110, that is, the width of the opening of the discharge slit 120 near the end surface of the cylinder body 110 is greater than the width of the opening of the communication channel 140 near the end surface of the cylinder body 110, so as to reduce the resistance of the discharge slit 120 when discharging the compressed gas and facilitate the discharge of the gas.

In one embodiment, the sidewall surfaces of the vent slits 120 are flat to facilitate manufacturing and to design and control the volume of the vent slits 120. Of course, the side wall surface of the exhaust notch 120 may also be an arc surface, so that the drill bit can be directly used for processing and manufacturing, and the manufacturing is convenient. It is understood that the side wall surface of the vent slits 120 may be provided as a curved surface.

In one embodiment, the cross section of the exhaust slit 120 is trapezoidal, that is, the cross section of the exhaust slit 120 in the direction perpendicular to the radial direction of the cylinder block 110 is trapezoidal, so as to facilitate the processing, and the opening at the top of the exhaust slit 120 is made larger, so as to facilitate the exhaust and reduce the exhaust resistance.

In one embodiment, referring to fig. 5, the cross section of the exhaust slit 120 is rectangular, that is, the cross section of the exhaust slit 120 along the direction perpendicular to the radial direction of the cylinder body 110 is rectangular, so as to facilitate the processing and design and control of the volume of the exhaust slit 120.

In one embodiment, referring to fig. 2-4, the edges of the slide groove 150 are chamfered 151 to facilitate manufacturing, installation of the slide in the slide groove 150, and to reduce wear during assembly, production, and operation.

In one embodiment, the minimum distance D between the side wall surface of the discharge slit 120 and the edge chamfer 151 of the vane groove 150 is in the range of 0.5 to 2mm to secure the strength of the portion of the cylinder block 110 between the discharge slit 120 and the vane groove 150, and also to allow the compressor of the cylinder 100 with resonance damping to operate with a greater compression ratio. When the minimum distance D between the side wall surface of the exhaust slit 120 and the edge chamfer 151 of the vane groove 150 is less than 0.5mm, the strength of the portion of the cylinder block 110 between the exhaust slit 120 and the vane groove 150 is weak, which affects the quality and the service life of the gas. When the minimum distance D between the side wall surface of the discharge slit 120 and the edge chamfer 151 of the vane groove 150 is greater than 2mm, the compression is small and the performance of the compressor is degraded when the compressed gas of the cylinder 100 with resonance sound attenuation is used.

The cylinder 100 with resonance noise elimination of the embodiment of the application can not only play a role in noise reduction, but also improve the compression performance when being applied to the compressor. The cylinder 100 with resonance noise elimination of the embodiment of the application can be applied to rolling rotor compressors of the types such as a single-cylinder rolling rotor compressor, a double-cylinder rolling rotor compressor, an enhanced vapor injection rolling rotor compressor, an independent compression rolling rotor compressor, a variable-capacity compression rolling rotor compressor, a two-stage compression rolling rotor compressor, a three-stage compression rolling rotor compressor and the like.

The embodiment of the application also discloses a compressor, which comprises the cylinder 100 with resonance sound elimination as described in any one of the embodiments. The compressor, using the cylinder 100 with resonance noise elimination of the above embodiment, can not only improve the performance of the compressor, but also reduce the noise of the compressor operation.

In one embodiment, the compressor may be a single cylinder rolling rotor compressor, a two cylinder rolling rotor compressor, a vapor enhanced rolling rotor compressor, an independent compression rolling rotor compressor, a variable capacity compression rolling rotor compressor, a two stage compression rolling rotor compressor, a three stage compression rolling rotor compressor, or the like.

The compressor of the embodiment of the application can be applied to equipment needing the compressor, such as an air conditioner, a refrigerator and the like.

The embodiment of the application also discloses an air conditioner, which comprises the compressor in the embodiment. The air conditioner uses the compressor of the embodiment, so that the air conditioner has low operation noise and the energy efficiency ratio of the air conditioner can be improved.

For the performance of an air conditioner, it is generally described by using an energy efficiency ratio, i.e., a ratio of a cooling capacity of the air conditioner to a compressor power (i.e., COP). Due to the development and perfection of the compressor, the improvement of the energy efficiency ratio of the air conditioner is more and more difficult due to the improvement of the structure of the compressor. For example, for a 1.5P air conditioner, the improvement of the energy efficiency ratio of the air conditioner is less than 0.1 due to the improvement of the structure of the compressor under the condition that the operation noise of the compressor is the same in the last decade. In particular, the structure of the compressor is becoming more and more perfect in recent years, and the improvement of the structure of the compressor and the improvement of the energy efficiency ratio are often less than 0.06.

The air conditioner with the compressor provided by the embodiment of the application not only can reduce noise, but also can improve the energy efficiency ratio of the air conditioner. The air conditioner to which the cylinder 100 having resonance muffling of the embodiment of the present application is applied (i.e., the air conditioner of the present embodiment) has noise reduced by 0.5-1.2db, as compared to the air conditioner to which the conventional cylinder is applied (i.e., the conventional air conditioner); the COP is greatly improved, and particularly under the condition of low-frequency operation in the compressor, the COP is improved by 0.01-0.035.

As a comparative experiment of the 1.5-pin air conditioner to which the compressor of the embodiment of the present application is applied and the conventional 1.5-pin air conditioner. The air conditioner of this embodiment has a power of 1.5 p, and the compressor thereof uses the cylinder 100 with resonance sound attenuation of the embodiment of this application, i.e., the 1.5 p air conditioner of this embodiment. The power of the traditional air conditioner is 1.5P, and the compressor of the traditional air conditioner is a traditional air cylinder, namely the traditional 1.5P air conditioner.

Under the seer30Hz operating condition, that is, under the seer operating condition, under the low-frequency operation condition that the compressor speed is 30 revolutions per second, compared with the conventional 1.5-pair air conditioner, the 1.5-pair air conditioner of the embodiment has the advantages that the compressor power is reduced by 1.38W, the corresponding cooling capacity is reduced by only 3.33W, and the corresponding COP is improved by 0.0165.

Under the seer60Hz working condition, that is, under the seer working condition, under the intermediate-frequency operation condition that the rotating speed of the compressor is 60 revolutions per second, compared with the traditional 1.5-pair air conditioner, the 1.5-pair air conditioner of the embodiment has the advantages that the power of the compressor is reduced by 1.55W, the corresponding refrigerating capacity is increased by 20.97W, and the corresponding COP is improved by 0.0321; the noise is reduced by 1.1 bd.

Under the seer90Hz working condition, that is, under the seer working condition and under the high-frequency operation condition that the rotating speed of the compressor is 90 revolutions per second, compared with the traditional 1.5-match air conditioner, the power of the compressor of the 1.5-match air conditioner is increased by 6.27W, the corresponding refrigerating capacity is increased by 17.83W, and the corresponding COP is increased by 0.0019; the noise is reduced by 0.52 bd.

As can be seen from the above, compared with the conventional air conditioner, the air conditioner using the compressor with the resonance muffling cylinder 100 of the present application not only improves the operation noise, but also improves the energy efficiency ratio, and particularly, the energy efficiency ratio during the medium and low frequency operation is greatly improved.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The cylinder with resonance noise elimination comprises a cylinder body, wherein a slide sheet groove is formed in the inner wall of the cylinder body, a resonant cavity, an exhaust notch and a communication channel for communicating the resonant cavity with the exhaust notch are formed in one end face of the cylinder body, and the cylinder is characterized in that: the exhaust notch is provided with a flat bottom surface, and the bottom surface of the communication channel is flush with the bottom surface of the exhaust notch.

2. The cylinder with resonance muffling of claim 1, wherein a length of the communication passage is greater than a length of the exhaust slit in a radial direction of the cylinder body.

3. The cylinder with resonance muffling according to claim 1, wherein a width of a bottom surface of said exhaust slit in a circumferential direction of said cylinder body is greater than or equal to a width of a bottom surface of said communication passage.

4. A cylinder with resonance damping according to any one of claims 1 to 3, characterised in that: the width of the top of the exhaust cut is larger than that of the top of the communication channel along the circumferential direction of the cylinder body.

5. The cylinder with resonance damping of claim 4, wherein: the side wall surface of the exhaust notch is a plane, a curved surface or an arc surface.

6. The cylinder with resonance muffling according to claim 4, wherein said exhaust slit has a rectangular or trapezoidal shape in a cross section perpendicular to a radial direction of said cylinder body.

7. A cylinder with resonance damping according to any one of claims 1 to 3, characterised in that: and the edge of the sliding sheet groove is provided with a chamfer.

8. The cylinder with resonance damping of claim 7, wherein: the minimum distance between the side wall surface of the exhaust notch and the chamfer is in the range of 0.5-2 mm.

9. A compressor, characterized by: comprising a cylinder with resonance damping according to any one of claims 1-8.

10. An air conditioner, characterized in that: comprising a compressor as claimed in claim 9.