Scroll compressor and oxygen production device

Abstract

The utility model discloses a scroll compressor and an oxygen production device. The scroll compressor comprises a first scroll plate, a second scroll plate, a first metal elastic piece and a first sealing washer, and the first scroll plate comprises a first base plate and first vortex teeth which are connected with each other; the second scroll plate comprises a second base plate and a second vortex tooth which are connected, and the second vortex tooth is meshed with the first vortex tooth; the first metal elastic piece abuts against the end, away from the first base disc, of the first vortex tooth. The first sealing washer abuts against the first metal elastic piece and the second base disc. In the embodiment of the invention, the sealing assembly consisting of the first metal elastic piece and the first sealing gasket is arranged between the first vortex tooth and the second basal disc, so that the abrasion of the first sealing gasket can be compensated by utilizing the elastic deformation performance of the first metal elastic piece; furthermore, the first sealing washer can seal a gap between the first vortex tooth and the second vortex plate, and the leakage problem of the axial end parts of the first vortex plate and the second vortex plate is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compressors, in particular to a scroll compressor and an oxygen generating device. BACKGROUND

[0002] The working principle of the scroll compressor is to form a continuous change of the closed volume by the relative revolution of the orbiting scroll and the fixed scroll, so as to realize the compression of the gas. However, due to the machining error of the orbiting scroll and the fixed scroll, the relative movement of the orbiting scroll and the fixed scroll will cause the axial wear between the two, which may cause the axial leakage of the scroll, and reduce the performance of the compressor. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a scroll compressor and an oxygen generating device, aiming to improve the problem of leakage at the axial butt joint part between the scroll discs of the scroll compressor.

[0004] To achieve the above technical effects, one technical scheme adopted by the present application is to provide a scroll compressor, comprising:

[0005] The first scroll disc comprises a first base disc and a first scroll tooth connected thereto;

[0006] The second scroll disc comprises a second base disc and a second scroll tooth connected thereto, and the second scroll tooth is engaged with the first scroll tooth;

[0007] The first metal elastic member abuts against one end of the first scroll tooth away from the first base disc; and

[0008] The first sealing gasket abuts against the first metal elastic member and the second base disc respectively.

[0009] In the example of the present application, the sealing assembly composed of the first metal elastic member and the first sealing gasket is arranged in the gap between the first scroll tooth and the second base disc. The elastic deformation performance of the first metal elastic member can be used to compensate for the wear of the first sealing gasket, so that the first sealing gasket can seal the gap between the first scroll tooth and the second scroll disc, and reduce the leakage problem at the axial end of the first scroll disc and the second scroll disc.

[0010] The first base disc is provided with a scroll line, and the first scroll tooth, the first metal elastic member and the first sealing gasket extend along the scroll line respectively.

[0011] The first metal elastic member comprises at least one bending section, and the at least one bending section is arranged in sequence along the extension direction of the first metal elastic member.

[0012] Each bending section comprises a convex section and a concave section connected thereto.

[0013] The at least one curved section is sequentially connected along the extension direction of the first metal elastic piece.

[0014] The at least one curved section is sequentially and spacedly arranged along the extension direction of the first metal elastic piece.

[0015] The first metal elastic piece is arranged in the accommodation groove, and the first sealing gasket is at least partially arranged in the accommodation groove.

[0016] The accommodation groove is provided with a groove bottom at the end away from the second base plate, and the first metal elastic piece abuts against the groove bottom at the side away from the first sealing gasket.

[0017] The accommodation groove comprises two groove walls arranged at two sides of the groove bottom.

[0018] The first metal elastic piece is provided with a gap between the two groove walls.

[0019] The first sealing gasket is provided with a gap between the two groove walls.

[0020] The scroll compressor further comprises:

[0021] The second metal elastic piece abuts against the end of the second scroll tooth away from the second base plate.

[0022] The second sealing gasket abuts against the second metal elastic piece and the first base plate respectively.

[0023] The present application further provides an example of an oxygen generating device based on the above-mentioned scroll compressor. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 is a structural schematic diagram of an example of the scroll compressor of the present application;

[0026] Figure 2 is Figure 1 is a partial enlarged view of the 1A part in

[0027] Figure 3 is Figure 2 is a partial structural schematic diagram of the tooth top of the first scroll tooth in

[0028] Figure 4is Figure 1 A local enlarged view of the middle 1B part;

[0029] Figure 5 A structural schematic view of an example of the first scroll plate of the present application;

[0030] Figure 6 A structural schematic view of an example of the metal elastic member of the present application;

[0031] Figure 7 A structural schematic view of another example of the metal elastic member of the present application.

[0032] Wherein: 10, the first scroll plate; 11, the first scroll tooth; 12, the first base plate; 121, the accommodating groove; 122, the groove bottom; 123, the groove wall;

[0033] 20, the second scroll plate; 21, the second scroll tooth; 22, the second base plate;

[0034] 30, the first metal elastic member; 31, the meandering section; 311, the convex section; 312, the concave section;

[0035] 40, the first sealing gasket;

[0036] 50, the second metal elastic member;

[0037] 60, the second sealing gasket;

[0038] 1a, the height direction; 2a, the thickness direction. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without any creative work fall within the scope of protection of the present application.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited. It should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" in the description of the present application should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in this text can be understood according to the specific circumstances.

[0041] In the present application, the word "exemplary" is used to mean "serving as an example, instance, or illustration." Any implementation described as "exemplary" in the present application is not necessarily to be construed as preferred or advantageous over other implementations. The following description is presented to enable any person skilled in the art to make and use the present application. In the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present application. It should be appreciated that one skilled in the art can realize the present application without the use of these specific details. In other instances, well known structures and processes are not elaborated in order not to obscure the description of the present application with unnecessary detail. Therefore, the present application is not intended to be limited by the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

[0042] The dynamic scroll plate and the static scroll plate are provided with scroll teeth respectively, the scroll teeth of the dynamic scroll plate and the scroll teeth of the static scroll plate are matched with each other, when the compressor is running, the dynamic scroll plate of the compressor rotates relative to the static scroll plate, the dynamic scroll plate and the static scroll plate inevitably have machining errors in the axial dimension, in order to compensate the machining errors in the axial dimension of the dynamic scroll plate and the static scroll plate and reduce the axial leakage caused by the machining errors, in some technologies, a tooth top sealing strip structure is added on the tooth top of the scroll teeth of the dynamic scroll plate or the static scroll plate, this design can reduce the axial wear of the dynamic scroll plate and the static scroll plate to a certain extent, but with the passage of time of the compressor, the sealing strip will also be worn to a certain extent, and the leakage problem is still possible.

[0043] In order to compensate the wear of the tooth top sealing strip, in some technologies, teeth are arranged on the sealing strip, this structure is to process some tooth-like structures on the sealing strip. When the sealing strip is not worn, the tooth-like structure is extruded; when the sealing strip is worn to a certain extent, the tooth-like structure will pop up to its original state, so as to compensate the worn gap. However, the sealing strip with tooth structure has the problem of difficult processing, and the size of the tooth is small, the compensation effect is limited; at the same time, the tooth has large plastic deformation, and the tooth is easy to retract, which reduces the sealing reliability.

[0044] Please refer to Figures 1 to 5 The application provides an example of a scroll compressor, which comprises a first scroll plate 10, a second scroll plate 20, a first metal elastic piece 30 and a first sealing gasket 40. The first scroll plate 10 comprises a first base plate 12 and a first scroll tooth 11 connected with each other. The second scroll plate 20 comprises a second base plate 22 and a second scroll tooth 21 connected with each other, and the second scroll tooth 21 is engaged with the first scroll tooth 11. The first metal elastic piece 30 abuts against one end of the first scroll tooth 11 away from the first base plate 12. The first sealing gasket 40 abuts against the first metal elastic piece 30 and the second base plate 22 respectively.

[0045] The first base plate 12 and the second base plate 22 are arranged oppositely. The side of the first base plate 12 facing the second base plate 22 is provided with the first scroll tooth 11, and the side of the second base plate 22 facing the first base plate 12 is provided with the second scroll tooth 21. The first scroll tooth 11 is engaged with the second scroll tooth 21.

[0046] The side end face of the first scroll tooth 11 away from the first base plate 12 and the second base plate 22 are sequentially provided with the first metal elastic piece 30 and the first sealing gasket 40. The first sealing gasket 40 can be used for sealing the gap between the first scroll tooth 11 and the second base plate 22. The first metal elastic piece 30 is used for generating elastic force on the first sealing gasket 40, so that the first sealing gasket 40 is attached to the second base plate 22.

[0047] The first metal elastic member 30 is arranged at the end of the first vortex tooth 11 away from the first base plate 12, and the first sealing gasket 40 abuts against the first metal elastic member 30 and the second base plate 22 respectively, so that the first sealing gasket 40 can be sealed between the first vortex tooth 11 and the second base plate 22, and the first metal elastic member 30 and the first sealing gasket 40 are arranged in a stacked manner from the first vortex tooth 11 to the second base plate 22.

[0048] The first sealing gasket 40 can be a rubber ring or other sealing structure with elastic deformation function. The first metal elastic member 30 can be a metal spring or a metal piece with elastic deformation performance, and the first metal elastic member 30 is used to generate an elastic force for the first sealing gasket 40 to move towards the second vortex disc 20. The first sealing gasket 40 in the example can be arranged along the extension direction of the first vortex tooth 11, as shown in FIG. 1B. Figure 5 The first vortex tooth 11 is in a spiral shape, and the first sealing gasket 40 is used to seal the gap between the first vortex tooth 11 and the second vortex disc 20. In some examples, the number of the first sealing gasket 40 and / or the first metal elastic member 30 can be multiple. The first sealing gasket 40 in the example can correspond to one or more first metal elastic members 30, or the first sealing gasket 40 and the first metal elastic member 30 form a sealing assembly in pairs, and the number of the sealing assemblies is multiple. The multiple sealing assemblies are arranged along the thickness direction 2a of the first vortex tooth 11 to improve the sealing efficiency.

[0049] When there is an axial gap between the first vortex tooth 11 and the second vortex disc 20, the first sealing gasket 40 can be used to seal the gap between the first vortex tooth 11 and the second vortex disc 20. When the first sealing gasket 40 is worn, the first metal elastic member 30 can generate an elastic force for the first sealing gasket 40 to deform towards the second vortex disc 20, so as to compensate for the wear of the first sealing gasket 40, thereby reducing the leakage problem caused by the wear of the first sealing gasket 40. The first sealing gasket 40 in the example can have a rectangular cross-sectional shape. Since the first sealing gasket 40 does not need to be additionally toothed, the shape of the first sealing gasket 40 can be simplified, and the processing cost of the first sealing gasket 40 can be reduced.

[0050] In some examples, the first vortex disc 10 is a static vortex disc, the first vortex tooth 11 is a vortex tooth of the static vortex disc, the second vortex disc 20 is a dynamic vortex disc, and the second vortex tooth 21 is arranged on the dynamic vortex disc.

[0051] In some examples, the first vortex disc 10 is a dynamic vortex disc, the first vortex tooth 11 is a vortex tooth of the dynamic vortex disc, the second vortex disc 20 is a static vortex disc, and the second vortex tooth 21 is arranged on the static vortex disc.

[0052] Please refer toFigure 1 and Figure 4 In some examples, the scroll compressor further comprises a second metal elastic member 50 abutting against one end of the second scroll tooth 21 away from the second base plate 22, and a second sealing gasket 60 abutting against the second metal elastic member 50 and the first base plate 12 respectively.

[0053] The second metal elastic member 50 is arranged at one end of the second scroll tooth 21 away from the second base plate 22, and the second sealing gasket 60 abuts against the second metal elastic member 50 and the first base plate 12 respectively, so that the second sealing gasket 60 can be sealed between the second scroll tooth 21 and the first base plate 12, and the second metal elastic member 50 and the second sealing gasket 60 are arranged in a stacked manner from the second scroll tooth 21 to the first base plate 12.

[0054] In the examples of the present application, the sealing structures are arranged at the tooth tops of the first scroll tooth 11 and the second scroll tooth 21 respectively to seal the axial gaps of the first scroll plate 10 and the second scroll plate 20, thereby improving the reliability of the compressor. In some embodiments, the second metal elastic member 50 can have the same material and / or shape as the first metal elastic member 30. In some embodiments, the second sealing gasket 60 can have the same material and / or shape as the first sealing gasket 40.

[0055] Referring to Figure 5 and Figure 6 In some examples, the first base plate 12 is provided with a scroll line, and the first scroll tooth 11, the first metal elastic member 30 and the first sealing gasket 40 extend along the scroll line respectively.

[0056] The scroll line in the examples can be centered on the geometric center of the first base plate 12, and the number of turns and the pitch of the scroll line can be determined according to the size of the first base plate 12.

[0057] The first scroll tooth 11 is arranged along the scroll line so as to form a scroll-shaped structure on the first base plate 12.

[0058] The first metal elastic member 30 and the first sealing gasket 40 are adapted to the shape of the first scroll tooth 11, and are arranged along the scroll line so as to be matched with the tooth top of the first scroll tooth 11.

[0059] Referring to Figure 7 In some examples, the first metal elastic member 30 comprises at least one bending section 31, and the at least one bending section 31 is arranged in sequence along the extension direction of the first metal elastic member 30.

[0060] The lengths of the plurality of bending sections 31 can be equal or unequal. In the examples of the present application, the lengths of the plurality of bending sections 31 are equal. Figure 7The plurality of curved segments 31 are arranged along the extension direction of the first vortex tooth 11, so that the plurality of curved segments 31 are combined to form the first metal elastic member 30. By using the plurality of curved segments 31 to form the first metal elastic member 30, the plurality of curved segments 31 can be machined separately and then combined, thereby reducing the machining difficulty of the first metal elastic member 30. In the example, the plurality of curved segments 31 can be connected to form a whole, or the plurality of curved segments 31 can not be connected to each other. In some examples, the number of the first metal elastic members 30 is multiple groups, each group of the first metal elastic members 30 can include the plurality of curved segments 31, and the projections of the plurality of curved segments 31 on the first vortex tooth 11 are arranged along the spiral line; the plurality of groups of the first metal elastic members 30 can be arranged at intervals along the thickness direction 2a of the first vortex tooth 11.

[0061] In some examples, the second metal elastic member 50 can have the same shape and structure as the first metal elastic member 30. Alternatively, the second metal elastic member 50 can also include a plurality of curved segments, and the shape and / or number of the curved segments of the second metal elastic member 50 can be the same as or different from the curved segments 31 of the first metal elastic member 30.

[0062] In some examples, each curved segment 31 includes a convex segment 311 and a concave segment 312 connected to each other. The convex segment 311 can form a wave crest, and the concave segment 312 can form a wave trough. Each curved segment 31 can include at least one convex segment 311 and at least one concave segment 312, and the convex segments 311 and the concave segments 312 can be arranged alternately.

[0063] In some examples, the curved segments 31 are connected in sequence along the extension direction of the first metal elastic member 30. In the example, the plurality of curved segments 31 can be connected to form a whole, thereby facilitating the installation of the first metal elastic member 30.

[0064] In some examples, at least one curved segment 31 is arranged at intervals in sequence along the extension direction of the first metal elastic member 30. In the example, the plurality of curved segments 31 can be machined separately, thereby simplifying the manufacturing process of the first metal elastic member 30.

[0065] Please refer to Figures 1 to 3 In some examples, the first vortex tooth 11 is provided with a receiving groove 121 at the end away from the first base disc 12, the first metal elastic member 30 is arranged in the receiving groove 121, and the first sealing gasket 40 is at least partially arranged in the receiving groove 121.

[0066] The accommodation groove 121 is a sink groove opened on the first vortex tooth 11, and has a groove opening facing the second base plate 22 and a groove bottom 122 opposite to the groove opening. The accommodation groove 121 can be used to accommodate the first metal elastic member 30 and the first sealing gasket 40. The first metal elastic member 30 can be placed at the groove bottom 122 of the accommodation groove 121, and the first sealing gasket 40 can be arranged on the side of the first metal elastic member 30 facing the groove opening of the accommodation groove 121.

[0067] The first metal elastic member 30 can be installed in the accommodation groove 121, so that the accommodation groove 121 can be used to limit the first metal elastic member 30.

[0068] The first sealing gasket 40 is partially embedded in the accommodation groove 121, so that the accommodation groove 121 can limit the first sealing gasket 40. When the first sealing gasket 40 is extruded and deformed, the first sealing gasket 40 can extrude the first metal elastic member 30, and when the first metal elastic member 30 is elastically deformed, the first sealing gasket 40 can generate a moving force in the direction of the second base plate 22. The accommodation groove 121 can be used to limit the radial movement of the first sealing gasket 40.

[0069] In some examples, the side of the first sealing gasket 40 away from the first metal elastic member 30 protrudes from the accommodation groove 121, so that the first sealing gasket 40 can be attached to the second base plate 22.

[0070] In some examples, the accommodation groove can also be arranged on the second vortex tooth 21, and the second metal elastic member 50 can be installed in the accommodation groove on the second vortex tooth 21. The second sealing gasket 60 can be partially installed in the accommodation groove on the second vortex tooth 21. The shape and / or size of the accommodation groove on the second vortex tooth 21 can be consistent with or inconsistent with the accommodation groove 121 on the first vortex tooth 11.

[0071] In some examples, the accommodation groove 121 has a groove bottom 122 at the end away from the second base plate 22, and the side of the first metal elastic member 30 away from the first sealing gasket 40 abuts against the groove bottom 122. The groove bottom 122 of the accommodation groove 121 is arranged towards the second base plate, and the first metal elastic member 30 abuts against the groove bottom 122, so that the accommodation groove 121 limits the first metal elastic member 30.

[0072] In some examples, the accommodation groove 121 includes two groove walls 123 respectively arranged on two sides of the groove bottom 122, and a gap is arranged between the first metal elastic member 30 and the two groove walls 123. The two groove walls 123 can be oppositely arranged, and the two groove walls 123 are respectively located on two sides of the groove bottom 122. A gap is arranged between the first metal elastic member 30 and the two groove walls 123. On the one hand, the installation and positioning of the first metal elastic member 30 can be facilitated, and on the other hand, the first metal elastic member 30 can maintain a better elastic deformation state, and the frictional resistance of the two groove walls 123 to the first metal elastic member 30 can be reduced.

[0073] In some examples, the accommodation groove 121 includes two groove walls 123 respectively arranged on two sides of the groove bottom 122, and a gap is arranged between the first metal elastic member 30 and the two groove walls 123. In the example, the first sealing gasket 40 has a gap between the two groove walls 123, so that the first sealing gasket 40 can be elastically deformed between the two groove walls 123, thereby reducing the deformation resistance of the accommodation groove 121 to the first sealing gasket 40.

[0074] On the basis of the above-mentioned scroll compressor, the present application further proposes an example of an oxygen generating device, which includes the scroll compressor as described in any of the above examples. It can be understood that the oxygen generating device in the example of the present application includes all the technical effects of the examples of the scroll compressor described above, and will not be repeated here.

[0075] The above is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A scroll compressor characterized by comprising: The scroll compressor comprises: a first scroll plate comprising a first base plate and a first scroll lobe connected to the first base plate; a second scroll plate comprising a second base plate and a second scroll lobe connected to the second base plate, the second scroll lobe being engaged with the first scroll lobe; a first metal elastic member abutting an end of the first scroll lobe away from the first base plate; and a first sealing gasket abutting the first metal elastic member and the second base plate respectively. The first base plate is provided with a scroll line along which the first scroll lobe, the first metal elastic member and the first sealing gasket extend.

2. The scroll compressor of claim 1, wherein The first metal elastic member comprises at least one meandering section arranged in sequence along the extension direction of the first metal elastic member.

3. The scroll compressor of claim 2, wherein Each meandering section comprises a convex section and a concave section connected to each other.

4. The scroll compressor of claim 3, wherein The at least one meandering section is arranged in sequence along the extension direction of the first metal elastic member; or 5. The scroll compressor of claim 3, wherein The at least one meandering section is arranged in sequence and spaced apart along the extension direction of the first metal elastic member. The end of the first scroll lobe away from the first base plate is provided with a receiving groove, the first metal elastic member is arranged in the receiving groove, and the first sealing gasket is at least partially arranged in the receiving groove.

6. The scroll compressor according to any one of claims 1 to 5, wherein The end of the receiving groove away from the second base plate is provided with a groove bottom, and a surface of the first metal elastic member away from the first sealing gasket abuts the groove bottom.

7. The scroll compressor of claim 6 wherein, The receiving groove comprises two groove walls arranged on both sides of the groove bottom respectively.

8. The scroll compressor of claim 7, wherein A gap is arranged between the first metal elastic member and the two groove walls; and / or A gap is arranged between the first sealing gasket and the two groove walls. The scroll compressor further comprises:

9. The scroll compressor of claim 1 wherein, a second metal elastic member abutting an end of the second scroll lobe away from the second base plate; and a second sealing gasket abutting the second metal elastic member and the first base plate respectively. The oxygen production device comprises the scroll compressor according to any one of claims 1 to 9.

10. An oxygen generating apparatus, characterized by comprising: ​

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