Rotary compressor for air conditioner and air conditioner
By setting a buffer cavity at the contact end of the vane and roller, the noise and wear problems of the rotary compressor during high-speed operation are solved, resulting in quieter and more reliable compressor operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-13
AI Technical Summary
In existing rotary compressors, the vanes and rollers may separate and re-engage during high-speed operation, resulting in significant noise and wear, which affects the reliability of the compressor.
A buffer cavity is provided at the contact end of the slide and the roller, especially the first buffer cavity is provided through the slide, and a second buffer cavity is provided on the roller to absorb the impact force and reduce noise and wear.
The design of the buffer cavity reduces noise and wear during the high-speed movement of the vanes and rollers, improving the reliability and quietness of the compressor.
Smart Images
Figure CN223991840U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of household appliance technology, such as a rotary compressor for an air conditioner and an air conditioner. Background Technology
[0002] With societal development, air conditioners are becoming increasingly common. An air conditioner's refrigeration system generally includes a rotary compressor, which comprises a cylinder, vanes, and rollers. The vanes and rollers move within the cylinder along a pre-defined path to compress the refrigerant. Therefore, the compressor is an indispensable and crucial component of an air conditioner.
[0003] In related technologies, when the compressor is running, the vane and roller reciprocate in the vane groove and compression chamber of the cylinder, respectively, and the vane and roller need to remain in contact during the movement.
[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:
[0005] In related technologies, existing air conditioners equipped with rotary compressors have vanes and rollers that move at high speeds during operation. This can cause the rollers and vanes to separate and re-engage momentarily, resulting in noticeable noise from the compressor.
[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.
[0008] This disclosure provides a rotary compressor and an air conditioner for use in an air conditioner. During operation, the rollers and vanes of the rotary compressor move at high speed. Since the vanes have buffer cavities corresponding to the rollers, these cavities act as a buffer when the vanes and rollers separate and re-engage, thus preventing significant noise from the compressor.
[0009] This disclosure provides a rotary compressor for an air conditioner, comprising: a cylinder, a roller, and a vane. The cylinder is provided with a compression chamber and a vane groove; the roller is disposed in the compression chamber; the vane is slidably disposed in the vane groove, and the end of the vane facing the roller is in sliding contact with the roller; wherein, the end of the vane in sliding contact with the roller is provided with a first buffer cavity, the first buffer cavity extending vertically through the vane.
[0010] In some embodiments, the vane and roller cooperate to separate a compression chamber within the compression cavity; wherein the centerline of the first buffer cavity is located on the side of the vane's centerline closer to the compression chamber.
[0011] In some embodiments, the cross-section of the first buffer cavity is configured as circular; the cross-section of the first buffer cavity is configured as elliptical, and the major axis of the cross-section of the first buffer cavity is parallel to the centerline of the slider.
[0012] In some embodiments, the first buffer cavity is filled with a buffer filler or a sound-absorbing filler.
[0013] In some embodiments, the roller is provided with a second buffer cavity, which extends through the roller in a vertical direction; wherein the distance between the second buffer cavity and the outer wall of the roller is less than or equal to a preset distance.
[0014] In some embodiments, the cross-section of the second buffer cavity is configured as circular; the cross-section of the second buffer cavity is configured as semi-annular, and the second buffer cavity is concentrically arranged with the roller.
[0015] In some embodiments, the roller is provided with a plurality of second buffer cavities, and the plurality of second buffer cavities are spaced apart around the center line of the roller.
[0016] In some embodiments, the rotary compressor further includes a main bearing and a muffler. The main bearing is disposed at the end of the cylinder, and an annular sealing groove is provided at the end of the main bearing opposite to the cylinder; the muffler is disposed on the side of the main bearing opposite to the cylinder, and an annular sealing side is provided on the muffler corresponding to the sealing groove; wherein the sealing side is embedded in the sealing groove.
[0017] In some embodiments, the outer wall surface of the sealing side abuts against the inner wall surface of the sealing groove, and a sealing material is provided at the abutment between the sealing side and the sealing groove.
[0018] This disclosure also provides an air conditioner including: the rotary compressor for an air conditioner described above.
[0019] The rotary compressor and air conditioner provided in this disclosure can achieve the following technical effects:
[0020] This disclosure provides a rotary compressor for an air conditioner, comprising a cylinder, a roller, and a vane. The cylinder has a compression chamber and a vane groove; the roller is disposed within the compression chamber; the vane is slidably disposed within the vane groove, with one end of the vane facing the roller in sliding contact with the roller; wherein, a first buffer cavity is provided at the end of the vane in sliding contact with the roller, the first buffer cavity extending vertically through the vane. In this way, the vane can reciprocate along the vane groove, and the roller can reciprocate circumferentially within the compression chamber, with the side of the vane near the roller in contact with the roller, thereby compressing the refrigerant within the compression chamber. With this configuration, during the high-speed movement of the vane and roller, the vane and roller may separate and then quickly re-engage; at this time, the first buffer cavity of the vane can act as a buffer, improving the compliance of the impact surface and thus avoiding significant noise from the compressor.
[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description
[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:
[0023] Figure 1 This is a schematic diagram of the structure of a rotary compressor provided in an embodiment of this disclosure;
[0024] Figure 2 This is a schematic diagram of another rotary compressor provided in an embodiment of this disclosure;
[0025] Figure 3 This is a schematic diagram of the structure of a roller provided in an embodiment of this disclosure;
[0026] Figure 4 This is a schematic diagram of the structure of a slider provided in an embodiment of this disclosure;
[0027] Figure 5 This is a cross-sectional view of a rotary compressor provided in an embodiment of this disclosure;
[0028] Figure 6 yes Figure 5 A magnified view of the local structure.
[0029] Figure label:
[0030] 10: Cylinder; 11: Compression chamber; 12: Vane groove;
[0031] 20: Roller; 21: Second buffer cavity;
[0032] 30: Sliding plate; 31: First buffer cavity;
[0033] 41: Main bearing; 411: Sealing groove; 42: Silencer; 421: Sealing side; 43: Silencing chamber. Detailed Implementation
[0034] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.
[0035] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.
[0036] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.
[0037] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.
[0038] Unless otherwise stated, the term "multiple" means two or more.
[0039] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.
[0040] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.
[0041] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.
[0042] A rotary compressor generally consists of a cylinder, vanes, and rollers. The vanes and rollers move along a preset trajectory within the compression chamber of the cylinder to compress the refrigerant. However, in situations such as excessively high vane and roller speeds or hydraulic compression, the vanes and rollers may separate and then collide rapidly, producing a "ticking" noise. Furthermore, repeated occurrences of this phenomenon over a long period can lead to wear on the vanes and rollers, ultimately affecting the compressor's reliability.
[0043] like Figures 1 to 6 As shown, this disclosure provides a rotary compressor and an air conditioner for use in an air conditioner. During operation, the rollers 20 and vanes 30 of the rotary compressor move at high speed. Since the vanes 30 are provided with a buffer cavity corresponding to the rollers 20, the buffer cavity can play a buffering role when the vanes 30 and rollers 20 separate and re-contact, thereby avoiding significant noise from the compressor.
[0044] like Figures 1 to 6 As shown, this embodiment of the present disclosure provides a rotary compressor for an air conditioner, comprising: a cylinder 10, a roller 20, and a vane 30. The cylinder 10 is provided with a compression chamber 11 and a vane groove 12; the roller 20 is disposed in the compression chamber 11; the vane 30 is slidably disposed in the vane groove 12, and one end of the vane 30 facing the roller 20 slides in contact with the roller 20; wherein, the end of the vane 30 that slides in contact with the roller 20 is provided with a first buffer cavity 31, and the first buffer cavity 31 is disposed through the vane 30 in a vertical direction.
[0045] Specifically, the vane 30 can reciprocate along the vane groove 12, and the roller 20 can reciprocate circumferentially within the compression chamber 11. The side of the vane 30 closest to the roller 20 contacts the roller 20 to compress the refrigerant within the compression chamber 11. A first buffer cavity 31 is located at the end of the vane 30 that contacts the roller 20 to ensure its buffering effect. When the vane 30 and roller 20 collide, the first buffer cavity 31 can undergo a certain elastic deformation to absorb the impact force on the vane 30. This design improves the compliance of the vane 30's impact surface, thereby preventing the compressor from generating significant noise.
[0046] It is understandable that the first buffer cavity 31 is vertically disposed at the end where the slide plate 30 and the roller 20 slide in contact, which helps to disperse the pressure on the slide plate 30 and further improve the buffering effect of the first buffer cavity 31.
[0047] In the above embodiments, the first buffer cavity 31 being arranged in the vertical direction means that the first buffer cavity 31 is parallel to the axis of the roller.
[0048] In practical applications, the thickness of the first buffer cavity 31 is less than or equal to 4 / 5 of the thickness of the slider 30, and greater than or equal to 1 / 5 of the thickness of the slider 30. For example, the thickness of the first buffer cavity 31 is 1 / 5, 2 / 5, 3 / 5, or 4 / 5 of the thickness of the slider 30. This avoids the first buffer cavity 31 being too large, causing the sidewalls of the slider 30 to be too thin and affecting the reliability of the slider 30, and also avoids the first buffer cavity 31 being too small, causing it to fail to perform its buffering function.
[0049] Optionally, the vane 30 is provided with a plurality of first buffer cavities 31, and the plurality of first buffer cavities 31 are spaced apart along the length direction of the vane 30. In this way, the impact force on the vane 30 can be absorbed by the plurality of first buffer cavities 31, further reducing the noise generated by the compressor.
[0050] like Figures 1 to 4 As shown, in some embodiments, the vane 30 and the roller 20 cooperate to separate a compression chamber within the compression cavity 11; wherein the centerline of the first buffer cavity 31 is located on the side of the centerline of the vane 30 closer to the compression chamber.
[0051] Specifically, cylinder 10 is also provided with an exhaust port communicating with compression chamber 11. The vane 30 and roller 20 divide compression chamber 11 into two independent chambers, with the chamber communicating with the exhaust port being the compression chamber. After the roller 20 compresses the refrigerant in the compression chamber, the refrigerant can flow out of compression chamber 11 through the exhaust port to complete the compression process. The fact that the centerline of the first buffer cavity 31 is located on the side of the vane 30 closer to the compression chamber means that the first buffer cavity 31 is located on the side of the vane 30 that is biased towards the compression chamber.
[0052] In the above embodiments, the centerline of the first buffer cavity 31 refers to its centerline in the vertical direction, and the centerline of the slider 30 refers to the centerline in the length direction of the slider 30.
[0053] like Figures 1 to 4 As shown, in some embodiments, the cross-section of the first buffer cavity 31 is configured as circular; the cross-section of the first buffer cavity 31 is configured as elliptical, and the major axis of the cross-section of the first buffer cavity 31 is parallel to the center line of the slider 30.
[0054] Specifically, the shape of the first buffer cavity 31 can be set according to the user's actual needs. For example, the first buffer cavity 31 can be configured as a cylindrical structure, that is, the cross-section of the first buffer cavity 31 is configured as circular. This configuration makes it easier for the user to process the first buffer cavity 31 and can reduce the processing difficulty of the slider 30. As another example, the first buffer cavity 31 can be configured as an elliptical cylindrical structure, that is, the cross-section of the first buffer cavity 31 is configured as elliptical, and the major axis of the ellipse is parallel to the center line of the slider 30. This configuration can increase the size of the first buffer cavity 31 without reducing the reliability of the slider 30, thereby improving the buffering effect of the first buffer cavity 31.
[0055] In some embodiments, the first buffer cavity 31 is filled with a buffer filler or a sound-absorbing filler.
[0056] Specifically, the first buffer cavity 31 is filled with a buffer filler such as an elastic damping material to further improve the buffering effect of the first buffer cavity 31. The first buffer cavity 31 may also be filled with a sound-absorbing filler such as sound-absorbing cotton to directly absorb the noise generated when the slider 30 and the roller 20 collide, thereby directly reducing the noise generated by the compressor.
[0057] In the above embodiment, if the user fills the first buffer cavity 31 with sound-absorbing material, the volume of the material is smaller than the volume of the first buffer cavity 31, so as to avoid the sound-absorbing material affecting the elastic deformation process of the first buffer cavity 31, thereby ensuring the buffering effect of the first buffer cavity 31.
[0058] like Figures 1 to 4 As shown, in some embodiments, the roller 20 is provided with a second buffer cavity 21, which is disposed through the roller 20 in a vertical direction; wherein, the distance between the second buffer cavity 21 and the outer wall of the roller 20 is less than or equal to a preset distance.
[0059] Specifically, the second buffer cavity 21 is positioned corresponding to the roller 20 and the vane 30. When the vane 30 and the roller 20 collide, the second buffer cavity 21 can undergo a certain elastic deformation to absorb the impact force on the vane 30. This design improves the compliance of the vane 30's impact surface, thereby preventing the compressor from generating significant noise.
[0060] It is understandable that the second buffer cavity 21 is vertically disposed through the roller 20, which helps to disperse the pressure on the roller 20 and further improve the buffering effect of the second buffer cavity 21.
[0061] In the above embodiment, the second buffer cavity 21 being arranged in the vertical direction means that the second buffer cavity 21 is parallel to the axis of the roller.
[0062] like Figures 1 to 4 As shown, in some embodiments, the cross-section of the second buffer cavity 21 is configured as circular; the cross-section of the second buffer cavity 21 is configured as semi-annular, and the second buffer cavity 21 is concentrically arranged with the roller 20.
[0063] Specifically, the shape of the second buffer cavity 21 can be set according to the user's actual needs. For example, the second buffer cavity 21 can be configured as a cylindrical structure, that is, the cross-section of the second buffer cavity 21 is configured as circular. This configuration makes it easier for the user to process the second buffer cavity 21 and can reduce the processing difficulty of the roller 20. As another example, the cross-section of the second buffer cavity 21 is configured as semi-annular, and the second buffer cavity 21 is concentric with the roller 20. This configuration can increase the size of the second buffer cavity 21, thereby improving the buffering effect of the second buffer cavity 21.
[0064] like Figures 1 to 4 As shown, in some embodiments, the roller 20 is provided with a plurality of second buffer cavities 21, and the plurality of second buffer cavities 21 are spaced apart around the center line of the roller 20.
[0065] Specifically, the dimensions and shapes of the multiple second buffer cavities 21 can be the same or different, and the number and spacing of the second buffer cavities 21 can be set according to the user's actual needs. It is understandable that, since the roller 20 is in a high-speed motion state, the slide 30 may contact different positions of the roller 20. Therefore, setting multiple second buffer cavities 21 can cover more contact areas.
[0066] Optionally, the second buffer cavity 21 is filled with a buffer filler or a sound-absorbing filler.
[0067] Specifically, the second buffer cavity 21 is filled with a buffer filler such as an elastic damping material to further improve the buffering effect of the second buffer cavity 21. The second buffer cavity 21 may also be filled with a sound-absorbing filler such as sound-absorbing cotton to directly absorb the noise generated when the sliding plate 30 and the roller 20 collide, thereby directly reducing the noise generated by the compressor.
[0068] In the above embodiment, if the user fills the second buffer cavity 21 with sound-absorbing material, the volume of the material is smaller than the volume of the second buffer cavity 21, so as to avoid the sound-absorbing material affecting the elastic deformation process of the second buffer cavity 21, thereby ensuring the buffering effect of the second buffer cavity 21.
[0069] like Figure 5 and Figure 6As shown, in some embodiments, the rotary compressor further includes a main bearing 41 and a muffler 42. The main bearing 41 is disposed at the end of the cylinder 10, and an annular sealing groove 411 is provided at the end of the main bearing 41 facing away from the cylinder 10; the muffler 42 is disposed on the side of the main bearing 41 facing away from the cylinder 10, and an annular sealing side 421 is provided on the muffler 42 corresponding to the sealing groove 411; wherein, the sealing side 421 is embedded in the sealing groove 411.
[0070] Specifically, the main bearing 41 is installed at the end of the cylinder 10, and the muffler 42 covers the side of the main bearing 41 facing away from the cylinder 10, with a gap between the muffler 42 and the main bearing 41 to form a muffler cavity 43. A central hole is provided at the center of the main bearing 41, and an annular sealing groove 411 is provided around the central hole on the side of the main bearing 41 facing away from the cylinder 10. The muffler 42 has a flange corresponding to the sealing groove 411 to form a sealing side 421, and the sealing side 421 extends towards the sealing groove 411. Thus, after the muffler 42 is installed, the sealing side 421 of the muffler 42 can be embedded in the sealing groove 411 to ensure the sealing of the muffler cavity 43, thereby improving the muffler effect of the muffler cavity 43.
[0071] like Figure 5 and Figure 6 As shown, in some embodiments, the outer wall of the sealing side 421 abuts against the inner wall of the sealing groove 411, and a sealing material is provided at the abutment between the sealing side 421 and the sealing groove 411.
[0072] Specifically, the sealing side 421 abuts against the sealing groove 411. The sealing material can be disposed on one side of the sealing side 421 abutting against the sealing groove 411, or it can be disposed on the side wall of the sealing groove 411 abutting against the sealing side 421. The sealing material can be a structure such as a rubber ring.
[0073] like Figures 1 to 6 As shown, this disclosure also provides an air conditioner including the above-described rotary compressor for an air conditioner.
[0074] Specifically, the air conditioner's compression system is the rotary compressor used in refrigeration equipment described above.
[0075] In an air conditioner using the rotary compressor described in this application, the rollers 20 and vanes 30 of the rotary compressor move at high speed during operation. Since the vanes 30 have a buffer cavity corresponding to the rollers 20, the buffer cavity can buffer the movement when the vanes 30 and rollers 20 separate and re-engage, thus preventing significant noise from the compressor.
[0076] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A rotary compressor for an air conditioner, characterized by, Comprising: a cylinder provided with a compression chamber and a vane slot; a roller provided in the compression chamber; and a vane slidably provided in the vane slot, and one end of the vane in sliding contact with the roller; wherein the one end of the vane in sliding contact with the roller is provided with a first buffer cavity, and the first buffer cavity is provided through the vane in a vertical direction.
2. The rotary compressor according to claim 1, wherein the vane and the roller cooperate to divide a compression chamber in the compression chamber; and a center line of the first buffer cavity is located on a side of a center line of the vane close to the compression chamber.
3. The rotary compressor according to claim 1, wherein a cross section of the first buffer cavity is configured as a circle; or a cross section of the first buffer cavity is configured as an ellipse, and a long axis of the cross section of the first buffer cavity is parallel to the center line of the vane.
4. The rotary compressor according to claim 1, wherein the first buffer cavity is filled with a buffer filler or a sound-absorbing filler.
5. The rotary compressor according to claim 1, wherein the roller is provided with a second buffer cavity, and the second buffer cavity is provided through the roller in a vertical direction; a distance between the second buffer cavity and an outer side wall surface of the roller is less than or equal to a preset distance.
6. The rotary compressor according to claim 5, wherein a cross section of the second buffer cavity is configured as a circle; or a cross section of the second buffer cavity is configured as a semi-ring, and the second buffer cavity is concentrically provided with the roller.
7. The rotary compressor according to claim 5, wherein the roller is provided with a plurality of the second buffer cavities, and the plurality of the second buffer cavities are provided at intervals around a center line of the roller. Further comprising:
8. The rotary compressor according to any one of claims 1 to 7, characterized by a main bearing provided at an end of the cylinder, and an annular sealing groove provided at one end of the main bearing away from the cylinder; and a silencer provided on a side of the main bearing away from the cylinder, and the silencer is provided with an annular sealing side corresponding to the sealing groove; wherein the sealing side is embedded in the sealing groove.
9. The rotary compressor according to claim 8, wherein an outer side wall surface of the sealing side abuts an inner side wall surface of the sealing groove, and a sealing material is provided at an abutment between the sealing side and the sealing groove. Comprising:
10. An air conditioner characterized by comprising: the rotary compressor for an air conditioner according to any one of claims 1 to 9.