Anti-rotation slip ring, compressor and refrigeration equipment

Abstract

This utility model provides an anti-rotation slip ring, a compressor, and refrigeration equipment, relating to the field of compressor structures. A moving plate key and a frame key are respectively provided at both ends of the annular base along its axial direction. The moving plate key forms a first flat key portion and a first semi-circular key portion arranged sequentially, with the first flat key portion connected to the annular base. The frame key forms a second flat key portion and a second semi-circular key portion arranged sequentially, with the second flat key portion connected to the annular base. Thus, (compared to existing standard flat keys) the contact area between the moving plate key and the frame key and the keyway can be effectively increased, thereby reducing stress and improving the service life of the keyway. Furthermore, when the anti-rotation slip ring moves radially with the moving plate, the tangential fillet transition structure of the moving plate key and the frame key facilitates stress distribution, thereby reducing the risk of brittle fracture of the key.

Description

Technical Field

[0001] This application relates to the field of compressor structure, and in particular to an anti-rotation slip ring, a compressor, and refrigeration equipment. Background Technology

[0002] The translational motion of the moving disc in a scroll compressor is achieved by the anti-rotation slip ring engaging with the keyways of both the frame and the moving disc. However, when the moving disc undergoes complex planar translational motion under forces from two orthogonal directions, the load on the anti-rotation slip ring is extremely high. Specifically, the two sides of the key on the anti-rotation slip ring are continuously subjected to high-intensity, high-frequency alternating impact shear forces F1. Currently, the keys on existing anti-rotation slip rings are all standard flat keys (e.g.,...). Figure 1 As shown in the figure, the contact area between the keyway and the frame and the moving plate is small, which makes the keyway stress relatively large, which is not good for the long-term use of the keyway.

[0003] Furthermore, during compressor operation, the inner and outer circular surfaces of the keyway of the anti-rotation slip ring are continuously subjected to a high-intensity, high-frequency changing radial thrust F2, and the two sides and top surface of the anti-rotation slip ring are continuously subjected to a high-frequency changing radial friction force F3. This causes the anti-rotation slip ring to translate radially along the keyway of the frame, so that the moving plate can translate radially along the keyway of the moving plate. In the existing anti-rotation slip ring, the two sides of the flat key are right-angled with the upper and lower end faces. During radial translation, the stress on the right-angled edges is concentrated, which can easily lead to brittle fracture of the flat key. Utility Model Content

[0004] In view of this, the purpose of this application is to provide an anti-rotation slip ring, a compressor, and a refrigeration device to solve the problems of existing anti-rotation slip rings having flat keys that are not conducive to long-term use of the keyway and are prone to brittle fracture.

[0005] To achieve the above objectives, a first aspect of this utility model provides an anti-rotation slip ring, comprising an annular base, wherein a moving plate key and a frame key are respectively provided at both ends of the annular base along its axial direction; the moving plate key forms a first flat key portion and a first semi-circular key portion arranged in sequence, the first flat key portion being connected to the annular base; the frame key forms a second flat key portion and a second semi-circular key portion arranged in sequence, the second flat key portion being connected to the annular base.

[0006] Preferably, there are two moving disk keys, which are distributed at both ends of the first diameter of the annular base.

[0007] Preferably, there are two rack keys, which are distributed at both ends of the second diameter of the annular base.

[0008] Preferably, the first diameter is perpendicular to the second diameter.

[0009] Preferably, in the first axial section of the anti-rotation slip ring, the cross-sections of the first flat key portion and the first semi-circular key portion are both formed into a rectangular shape; the straight line containing the first diameter belongs to the plane containing the first axial section.

[0010] Preferably, the projection of the second flat key portion onto the plane containing the first axial section is rectangular, and the projection of the second semicircular key portion onto the plane containing the first axial section is semicircular.

[0011] Preferably, in the second axial section of the anti-rotation slip ring, the cross-sections of the second flat key portion and the second semi-circular key portion are both formed into a rectangular shape; the straight line containing the second diameter belongs to the plane containing the second axial section.

[0012] Preferably, the projection of the first flat key portion onto the plane containing the second axial section is rectangular, and the projection of the first semicircular key portion onto the plane containing the second axial section is semicircular.

[0013] According to a second aspect of the present invention, a compressor is provided, wherein the compressor includes an anti-rotation slip ring as described above; the compressor further includes a moving plate and a frame, wherein the moving plate key is correspondingly assembled with the moving plate, and the frame key is correspondingly assembled with the frame.

[0014] According to a third aspect of the present invention, a refrigeration device is provided, wherein the refrigeration device includes a compressor as described above.

[0015] According to the anti-rotation slip ring, compressor, and refrigeration equipment of this utility model, the moving plate key is composed of a first flat key portion and a first semi-circular key portion arranged in sequence, and the frame key is composed of a second flat key portion and a second semi-circular key portion arranged in sequence. The first and second flat key portions are respectively connected to both ends of the annular base of the anti-rotation slip ring. In this way (compared to existing standard flat keys), the contact area between the moving plate key and the frame key and the keyway can be effectively increased, thereby reducing stress and improving the service life of the keyway. Furthermore, when the anti-rotation slip ring and the moving plate move radially, the tangential fillet transition structure of the moving plate key and the frame key is conducive to the uniform distribution of stress, thereby reducing the risk of brittle fracture of the key.

[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of an anti-rotation slip ring in the prior art; Figure 2 This is a schematic diagram of an anti-rotation slip ring according to an embodiment of the present invention.

[0019] Icons: 1-ring base; 2-moving key; 21-first flat key; 22-first semi-circular key; 3-frame key; 31-second flat key; 32-second semi-circular key. Detailed Implementation The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0020] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0021] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0022] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0023] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0024] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0025] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0026] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0027] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0028] According to a first aspect of this utility model, an anti-rotation slip ring is provided, such as... Figure 2 As shown, the anti-rotation slip ring in this embodiment includes an annular base 1, with a moving key 2 and a frame key 3 respectively provided on both ends (end faces) of the moving key 1 along its axial direction; further, the moving key 2 forms a first flat key portion 21 and a first semi-circular key portion 22 arranged in sequence, the first flat key portion 21 being connected to the annular base 1; the frame key 3 forms a second flat key portion 31 and a second semi-circular key portion 32 arranged in sequence, the second flat key portion 31 being connected to the annular base 1.

[0029] Furthermore, such as Figure 2 As shown, there are two moving disk keys 2, which are distributed at both ends of the first diameter of the annular base 1; there are also two frame keys 3, which are distributed at both ends of the second diameter of the annular base 1; the first diameter (the line in which it is located) is perpendicular to the second diameter (the line in which it is located).

[0030] Specifically, in the first axial section of the anti-rotation slip ring, the cross-sections of the first flat key portion 21 and the first semi-circular key portion 22 are both rectangular, and the straight line containing the first diameter belongs to the plane containing the first axial section. Furthermore, the projection of the second flat key portion 31 onto the plane containing the first axial section is rectangular, and the projection of the second semi-circular key portion 32 onto the plane containing the first axial section is semi-circular. Similarly, in the second axial section of the anti-rotation slip ring, the cross-sections of the second flat key portion 31 and the second semi-circular key portion 32 are both rectangular, and the straight line containing the second diameter belongs to the plane containing the second axial section. Furthermore, the projection of the first flat key portion 21 onto the plane containing the second axial section is rectangular, and the projection of the first semi-circular key portion 22 onto the plane containing the second axial section is semi-circular.

[0031] like Figure 2 As shown, in this embodiment, the moving disk key 2 is directly disposed at the end face of the first end in the axial direction of the annular base 1; in addition, a groove is formed on the end face of the second end in the axial direction of the annular base 1, and the aforementioned frame key 3 is formed at the bottom end of the groove.

[0032] It should be noted that the dimensions of each part of this anti-rotation slip ring are not specifically limited and should be determined comprehensively based on actual conditions, such as the specifications of the moving plate and the frame, as long as the above-mentioned technical effects are met. Preferably, along the extension direction of the first diameter, the length of the first semi-circular key portion 22 is equal to the length of the first flat key portion 21, and the diameter of the first semi-circular key portion 22 is equal to the width of the first flat key portion 21; along the extension direction of the second diameter, the length of the second semi-circular key portion 32 is equal to the length of the second flat key portion 31, and the diameter of the second semi-circular key portion 32 is equal to the width of the second flat key portion 31.

[0033] According to the anti-rotation slip ring of this utility model, the moving plate key 2 is composed of a first flat key portion 21 and a first semi-circular key portion 22 arranged in sequence, and the frame key 3 is composed of a second flat key portion 31 and a second semi-circular key portion 32 arranged in sequence. The first flat key portion 21 and the second flat key portion 31 are respectively connected to both ends of the annular base 1 of the anti-rotation slip ring. In this way (compared to existing standard flat keys), the contact area between the moving plate key 2 and the frame key 3 and the keyway can be effectively increased, thereby reducing stress and improving the service life of the keyway. Furthermore, when the anti-rotation slip ring moves radially with the moving plate, the tangential rounded corner transition structure of the moving plate key 2 and the frame key 3 is conducive to the uniform distribution of stress, thereby reducing the risk of brittle fracture of the key. According to a second aspect of the present invention, a compressor is provided, the compressor including the anti-rotation slip ring as described above; in addition, the compressor also includes a moving plate and a frame, the moving plate key 2 is correspondingly assembled with the moving plate, the frame key 3 is correspondingly assembled with the frame, and the moving plate forms a keyway corresponding to the moving plate key 2, and the frame forms a keyway corresponding to the frame key 3. The setting of corresponding keyways according to the structure of the key is the prior art, and therefore will not be described in detail.

[0034] According to a third aspect of the present invention, a refrigeration device is provided, wherein the refrigeration device includes a compressor as described above, and the refrigeration device may be, for example, an air conditioner or a heat pump. Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. An anti-rotation slip ring, comprising an annular base, characterized in that, The annular base has a moving key and a frame key at both ends along its axial direction. The moving key has a first flat key portion and a first semi-circular key portion arranged in sequence, and the first flat key portion is connected to the annular base. The frame key has a second flat key portion and a second semi-circular key portion arranged in sequence, and the second flat key portion is connected to the annular base.

2. The anti-rotation slip ring according to claim 1, characterized in that, The number of moving disk keys is two, and the two moving disk keys are distributed at both ends of the first diameter of the annular base.

3. The anti-rotation slip ring according to claim 2, characterized in that, The number of rack keys is two, and the two rack keys are distributed at both ends of the second diameter of the annular matrix.

4. The anti-rotation slip ring according to claim 3, characterized in that, The first diameter is perpendicular to the second diameter.

5. The anti-rotation slip ring according to claim 4, characterized in that, In the first axial section of the anti-rotation slip ring, the cross sections of the first flat key and the first semi-circular key are both formed into a rectangular shape; the straight line containing the first diameter belongs to the plane containing the first axial section.

6. The anti-rotation slip ring according to claim 5, characterized in that, The projection of the second flat key portion onto the plane containing the first axial section is rectangular, and the projection of the second semicircular key portion onto the plane containing the first axial section is semicircular.

7. The anti-rotation slip ring according to claim 4, characterized in that, In the second axial section of the anti-rotation slip ring, the cross sections of the second flat key and the second semi-circular key are both formed into a rectangular shape; the straight line containing the second diameter belongs to the plane containing the second axial section.

8. The anti-rotation slip ring according to claim 7, characterized in that, The projection of the first flat key portion onto the plane containing the second axial section is rectangular, and the projection of the first semicircular key portion onto the plane containing the second axial section is semicircular.

9. A compressor, characterized in that, The compressor includes an anti-rotation slip ring as described in any one of claims 1 to 8; the compressor also includes a moving plate and a frame, wherein the moving plate key is assembled correspondingly with the moving plate, and the frame key is assembled correspondingly with the frame.

10. A refrigeration device, characterized in that, The refrigeration equipment includes the compressor as described in claim 9.

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