Compressor

Abstract

A compressor comprises an air cylinder, and a compression cavity is located in the air cylinder and defined by the cylinder wall of the air cylinder. The cylinder wall comprises an outer wall and an inner wall which are oppositely arranged in the radial direction of the compression cavity; the multiple first magnetic parts are arranged in the cylinder wall in a dispersed mode in the circumferential direction of the cylinder wall, the rotating shaft is arranged in the compression cavity and is coaxial with the compression cavity, and a second magnetic part is arranged in the rotating shaft; the eccentric part sleeves the periphery of the rotating shaft, and the central axis of the eccentric part and the central axis of the rotating shaft are parallel and staggered; the rotor is arranged in the compression cavity and arranged on the periphery of the eccentric part in a sleeving mode. The rotor is driven by the rotating shaft to do eccentric motion along the inner wall, at least part of the outer circumferential face of the rotor abuts against the inner wall, and the distance between the outer circumferential face and the inner wall of the rotating shaft is not changed all the time, so that the magnetic acting force between the second magnetic piece in the rotating shaft and the first magnetic piece in the air cylinder is not changed; and the outer peripheral surface and the inner wall of the rotor are uniformly stressed while the close contact between the outer peripheral surface part and the inner wall of the rotor is ensured.

Description

[Technical Field]

[0001] This invention relates to a compressor, and more particularly to a compressor that facilitates uniform force distribution on the cylinder wall and rotor of the cylinder. [Background Technology]

[0002] A common type of rolling rotor compressor includes a cylinder, the cylinder wall of which forms a compression chamber, and a vane groove extending radially through the cylinder wall. A rotating main shaft is located inside the compression chamber and coaxially arranged with it. An eccentric part is fitted around the outer circumference of the rotating main shaft, a rotor is assembled around the outer circumference of the eccentric part, and a vane is housed in the vane groove, which allows the vane to slide within the groove. When the rotating main shaft starts to rotate with the drive of an external motor, the rotor performs eccentric circular motion within the compression chamber along with the eccentric part. The end of the vane always abuts against the outer circumference of the rotor, thereby dividing the compression chamber into an inlet chamber and an outlet chamber. However, in traditional compressors, to prevent gas leakage from the outlet chamber, it is necessary to ensure that a portion of the outer circumference of the rotor is in close contact with the wall of the compression chamber. A common technique is to embed a first magnetic element and a second magnetic element in the cylinder wall of the rotor and the cylinder, respectively. The magnetic forces between the first and second magnetic elements attract each other, minimizing the distance between the rotor and the cylinder wall when the rotor rotates eccentrically within the compression chamber.

[0003] However, the above-mentioned technical means have the following problems: Since the rotor moves eccentrically in the compression chamber, the distance between the rotor and the cylinder wall of the cylinder changes continuously, which causes the magnetic force between the first magnetic component and the second magnetic component to change accordingly. At the same time, since the overall mass and volume of the rotor and the eccentric part in the compression chamber are large, the centrifugal force of the rotor is large at high speeds, which leads to the continuous change of the interaction force between the rotor and the cylinder wall. The outer periphery of the rotor and the cylinder wall are subjected to uneven forces, which makes them prone to damage.

[0004] To solve the above problems, technicians usually reduce the rotational speed of the spindle or reduce the number of the first or second magnetic components, but these methods will undoubtedly reduce the compression efficiency of the compressor.

[0005] Therefore, it is necessary to design a new compressor to solve the above-mentioned technical problems. [Summary of the Invention]

[0006] To address the problems encountered in the background technology, the present invention aims to provide a compressor in which a first magnetic element and a second magnetic element are respectively arranged in the cylinder wall and the rotating shaft, such that the distance between the outer peripheral surface and the inner wall of the rotating shaft remains constant during the rotation of the rotating shaft, so that the magnitude of the magnetic force between the second magnetic element in the rotating shaft and the first magnetic element in the cylinder remains constant, which is beneficial to the uniform force on the rotor and the cylinder wall.

[0007] To achieve the above objectives, the present invention employs the following technical means: a compressor, characterized in that it comprises: a cylinder including a cylinder wall, a compression chamber located inside the cylinder and formed by the cylinder wall; the cylinder wall including an outer wall and an inner wall disposed opposite to each other along the radial direction of the compression chamber; a plurality of first magnetic elements disposed within the cylinder wall, and the plurality of first magnetic elements being dispersedly disposed along the circumferential direction of the cylinder wall; a through groove being disposed through the cylinder wall along the radial direction of the compression chamber, and the through groove communicating with the compression chamber; a sliding plate disposed within the through groove and having a contact end, the sliding plate... The compressor slides radially within the compression chamber in the through groove; a rotating shaft is disposed within the compression chamber, coaxial with the compression chamber, and a second magnetic element is disposed within the rotating shaft; an eccentric part is sleeved on the outer circumference of the rotating shaft, the central axis of the eccentric part and the central axis of the rotating shaft being parallel and offset; a rotor is disposed within the compression chamber and sleeved on the outer circumference of the eccentric part; the rotor moves eccentrically along the inner wall under the drive of the rotating shaft, and at least part of the outer circumferential surface of the rotor abuts against the inner wall, with the contact end abutting against the outer circumferential surface of the rotor, thereby dividing the compression chamber into an inlet chamber and an outlet chamber.

[0008] Furthermore, the rotating shaft has a first half and a second half, and the first half and the second half are respectively located on opposite sides of the plane where the central axis of the rotating shaft is located, and a plurality of second magnetic components are dispersedly embedded in the first half along the circumferential direction of the rotating shaft.

[0009] Furthermore, the first magnetic component has a first segment and a second segment arranged opposite to each other, with the first segment being closer to the inner wall than the second segment; the second magnetic component has a first end and a second end arranged opposite to each other, with the first end being closer to the outer circumferential surface of the rotating shaft than the second end. The magnetic forces of the first segment and the first end repel each other, while the magnetic forces of the first segment and the second end attract each other.

[0010] Furthermore, the rotating shaft has a first half and a second half, and the first half and the second half are respectively located on opposite sides of the plane where the central axis of the rotating shaft is located. The second magnetic element is a permanent magnet material, and the first half is at least partially composed of the second magnetic element.

[0011] Furthermore, the first magnetic component has a first segment and a second segment arranged opposite to each other, with the first segment being closer to the inner wall than the second segment; the second magnetic component has a first end and a second end arranged opposite to each other, with the first end being closer to the outer circumferential surface of the rotating shaft than the second end, and the magnetic force of the first segment and the magnetic force of the first half repel each other.

[0012] Furthermore, the slide plate includes a sliding plate and two first sealing layers. The sliding plate includes two sliding walls arranged opposite to each other. The two first sealing layers are respectively covered on the two sliding walls. The through groove includes two groove walls arranged opposite to each other. The two first sealing layers are in sliding contact with the two groove walls respectively.

[0013] Furthermore, the first sealing layer has a first main body portion and two first protrusions that protrude from the first main body portion in a direction away from the slide plate; the through groove also includes a plurality of first notches, at least two of which are recessed from the same groove wall in a direction away from the slide plate; the two first main bodies portion slides in contact with the two groove walls respectively, and the two first protrusions of the same sealing layer are respectively received in the two first notches.

[0014] Furthermore, the cylinder wall also includes two side walls arranged opposite each other along the central axis of the compression chamber, the side walls connecting the outer wall and the inner wall; the sliding vane also includes two connecting walls arranged opposite each other along the central axis of the compression chamber, the connecting walls connecting the two sliding walls; the first main body is located between the two first protrusions, each first protrusion including an outer side surface, and the outer side surface, side walls and connecting walls are flush when viewed along the radial direction of the compression chamber.

[0015] Furthermore, the first sealing layer has a first main body portion and two first protrusions protruding from the first main body portion in a direction away from the slide plate; the rotor includes a rotating portion and a second sealing layer sleeved on the outer periphery of the rotating portion, the second sealing layer having a second main body portion and two second protrusions protruding from the second main body portion in a direction away from the rotating shaft; when the contact end abuts against the second sealing layer, the two first protrusions of the same first sealing layer are located between the two second protrusions, and the two first protrusions abut against the two second protrusions respectively.

[0016] Furthermore, the rotor includes a rotating part and a second sealing layer sleeved on the outer periphery of the rotating part. The second sealing layer has a second main body and two second protrusions protruding from the second main body in a direction away from the rotating shaft. The compression chamber includes two second notches, which are recessed from the inner wall towards the outer wall. When the rotor moves eccentrically along the inner wall, the second main body at least partially contacts the inner wall, and the two second protrusions are respectively received in the two second notches.

[0017] Compared with the prior art, the present invention has the following advantages: By setting multiple first magnetic elements inside the cylinder wall, which are distributed along the circumferential direction of the cylinder wall, and setting a second magnetic element inside the rotating shaft, when the rotor moves eccentrically along the inner wall of the compression chamber, the mutual repulsion between the first and second magnetic elements ensures that the second sealing layer is always in close contact with the inner wall. Simultaneously, compared to the prior art where a second magnetic element is placed in the rotor, the distance between the outer circumference of the rotor and the cylinder wall changes continuously due to the eccentric circular motion of the rotor in the compression chamber. This causes the magnetic force between the first and second magnetic elements to change accordingly, resulting in uneven force on the rotor and cylinder wall during rotor rotation, which is prone to damage. In this solution, by setting the rotating shaft and the compression chamber coaxially, i.e., the central axis of the rotating shaft coincides with the central axis of the compression chamber, the distance between the outer circumference of the rotating shaft and the inner wall remains constant during the rotation of the rotating shaft. This ensures that the magnitude of the magnetic force between the second magnetic element in the rotating shaft and the first magnetic element in the cylinder remains constant, which is beneficial for the rotor and cylinder wall to be subjected to uniform force. [Attached Image Description]

[0018] Figure 1 This is an exploded perspective view of the compressor of the present invention;

[0019] Figure 2 for Figure 1 A three-dimensional schematic diagram of the assembled compressor;

[0020] Figure 3 for Figure 2 A three-dimensional schematic diagram of the compressor from another perspective;

[0021] Figure 4 for Figure 1 3D exploded view of the middle cylinder, sliding vane, and first sealing layer after disassembly;

[0022] Figure 5 for Figure 1 A schematic diagram of the middle cylinder cut along a plane defined by YZ;

[0023] Figure 6 for Figure 3 Sectional view along AA;

[0024] Figure 7 for Figure 3 Sectional view along BB;

[0025] Figure 8 for Figure 3 Sectional view along CC;

[0026] Figure 9 This is a perspective view of a compressor according to another embodiment of the present invention.

[0027] Explanation of reference numerals in the accompanying drawings for the specific implementation methods:

[0028]

[0029]

Detailed Implementation Methods

[0030] To facilitate a better understanding of the purpose, structure, and features of this invention, the invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0031] To facilitate a better understanding of the technical solution of this invention, the X-axis in the three-dimensional coordinate system of the accompanying drawings is defined as the left-right direction, with the positive direction of the X-axis being to the right, and the X-axis is in the same direction as the radial direction of the compression chamber P; the Y-axis is defined as the front-back direction, with the positive direction of the Y-axis being forward, and the Y-axis is also the direction of the central axis S2 of the rotating shaft 4; the Z-axis is defined as the up-down direction, with the positive direction of the Z-axis being upward, and the Z-axis is in the same direction as the radial direction of the compression chamber P. For ease of description, the up-down, left-right, and front-back orientations in this invention are relative positions and do not constitute a limitation. The X-axis, Y-axis, and Z-axis directions of the compressor can be customized according to the specific structure of the product and the perspective presented in the accompanying drawings; this invention does not impose specific limitations.

[0032] Please see Figures 1 to 3 The compressor of the present invention includes a cylinder 1, a slide plate 3, a rotating shaft 4, an eccentric portion 6 sleeved on the outer periphery of the rotating shaft 4, and a rotor 7 sleeved on the outer periphery of the eccentric portion 6.

[0033] Please see Figure 2 and Figure 3 The cylinder 1 includes a cylinder wall 10, and a compression chamber P is located inside the cylinder 1 and is formed by the cylinder wall 10. In this embodiment, the compression chamber P is circular; in other embodiments, the compression chamber P may also be of other shapes. See reference. Figure 4 and Figure 5 The cylinder wall 10 has an outer wall 101 and an inner wall 102 arranged opposite each other in the radial direction of the compression chamber P, and two side walls 103 arranged opposite each other in the front-rear direction. The side walls 103 connect the outer wall 101 and the inner wall 102 in the radial direction of the compression chamber P. The inner wall 102 is also the cavity wall of the compression chamber P. The compression chamber P includes two second notches P3, which are recessed from the inner wall 102 towards the outer wall 101. In this embodiment, the second notches P3 are located between the side walls 103 and the inner wall 102; in other embodiments, the second notches P3 may be located in other positions, such as a portion of the inner wall 102 located between the second notches P3 and the side walls 103.

[0034] Please see Figure 4A through groove 11 extends vertically through the cylinder wall 10 and connects to the compression chamber P. The through groove 11 has two groove walls 110 arranged opposite each other in the left-right direction and a plurality of first notches 111. The groove walls 110 connect the outer wall 101 and the inner wall 102 of the cylinder 1. (See reference...) Figure 3 Multiple first magnetic elements 2 are fixed inside the cylinder wall 10, and are distributed along the circumferential direction of the cylinder wall 10. Each first magnetic element 2 includes a first segment 20 and a second segment 21 disposed opposite to each other along the radial direction of the compression cavity P. The first segment 20 is closer to the inner wall 102 than the second segment 21, and the magnetism of the first segment 20 is opposite to that of the second segment 21. Furthermore, see [reference needed]. Figure 2 and Figure 3 The cylinder 1 also includes an air inlet 12 and an air outlet 13 located on both sides of the through groove 11. The air inlet 12 and the air outlet 13 both penetrate the cylinder wall 10 along the radial direction of the compression chamber P and are connected to the compression chamber P.

[0035] Please see Figure 3 and Figure 4 A sliding plate 3 is disposed within a through groove 11, and the sliding plate 3 can slide within the through groove 11 in the radial direction of the compression chamber P. The sliding plate 3 has a contact end 30, which is exposed in the compression chamber P. The sliding plate 3 also includes a sliding piece 31 and two first sealing layers 32. The sliding piece 31 has two sliding walls 310 arranged opposite each other in the left-right direction and two connecting walls 311 arranged opposite each other in the front-back direction. The connecting walls 311 connect the two sliding walls 310. In this embodiment, the two first sealing layers 32 are respectively covered on the two sliding walls 310. In other embodiments, the sliding plate 3 may also include only one sliding piece 31, and the two first sealing layers 32 may be respectively covered on the two groove walls 110, in which case the two sealing layers are in sliding contact with the two sliding walls 310 respectively. Each first sealing layer 32 includes a first main body portion 320 and two first protrusions 321 located on the front and rear sides of the first main body portion 320 respectively. The first protrusions 321 protrude from the first main body portion 320 in a direction away from the sliding walls 310. The two first main body parts 320 respectively contact the two groove walls 110. (See also...) Figure 5 and Figure 6Two first notches 111 are recessed from the same groove wall 110 in a direction away from the slider 31, and two first protrusions 321 are respectively received in the two first notches 111. In this embodiment, viewed in the vertical direction, the cross-section of the first protrusion 321 is triangular, and each first protrusion 321 has an inner side surface 321a and an outer side surface 321b. The inner side surface 321a is closer to the groove wall 110 than the outer side surface 321b, and viewed in the vertical direction, the outer side surface 321b, the side wall 103, and the sliding wall 310 are flush. In other embodiments, viewed vertically, the cross-section of the first protrusion 321 can also be rectangular or other shapes. Furthermore, the outer surface 321b of the first protrusion 321 may not be flush with the sidewall 103 or sliding wall 310. For example, the inner surface 321a of the first sealing layer 32 may abut against the sidewall 103 of the cylinder 1. In this case, along the front-back direction, the outer surface 321b of the first sealing layer 32 is further away from the cylinder wall 10 than the sidewall 103 and sliding wall 310. In this embodiment, the first sealing layer 32 uses a modified PTFE material with a low coefficient of friction or inherent lubrication properties. In other embodiments, the first sealing layer 32 can also use other materials that meet the requirements of coefficient of friction and sealing conditions, and are resistant to high temperatures and wear.

[0036] Please see Figure 2 and Figure 3 The rotating shaft 4 is disposed within the compression chamber P and connected to an external motor (not shown). In this embodiment, the rotating shaft 4 is cylindrical, and the rotating shaft 4 and the compression chamber P are coaxially arranged, that is, the central axis S2 of the rotating shaft 4 coincides with the central axis S1 of the compression chamber P. In other embodiments, the shape of the rotating shaft 4 can also be other shapes, as long as it ensures that the rotating shaft 4 includes a first half 40 and a second half 41, and the first half 40 and the second half 41 are respectively located on opposite sides of the plane containing the central axis S2 of the rotating shaft 4. Please refer to... Figure 3 In this embodiment, multiple second magnetic elements 5 are dispersedly embedded within the first half 40 along the circumferential direction of the rotating shaft 4. Each second magnetic element 5 includes a first end 50 and a second end 51 disposed opposite to each other along the radial direction of the rotating shaft 4. The first end 50 is closer to the outer circumferential surface of the rotating shaft 4 than the second end 51, and the magnetism of the first end 50 is the same as that of the first segment 20, while the magnetism of the second end 51 is opposite to that of the first segment 20. Please refer to [link / reference]. Figure 9 In other embodiments, the first half 40 can be directly composed of the second magnetic element 5. The second magnetic element 5 is made of permanent magnet material. In this case, the second magnetic element 5 is divided into a first end 50 and a second end 51 that are arranged opposite to each other in the radial direction of the rotating shaft 4. The first end 50 is closer to the outer peripheral surface of the rotating shaft 4 than the second end 51. The magnetism of the first end 50 is the same as that of the first segment 20, thereby omitting the step of embedding multiple dispersed second magnetic elements 5 into the first half 40 and reducing the manufacturing difficulty.

[0037] The eccentric part 6 is fitted around the outer periphery of the rotating shaft 4, and the central axis S3 of the eccentric part 6 and the central axis S2 of the rotating shaft 4 are parallel to each other but staggered. Please refer to [link / reference]. Figure 2 and Figure 7 The rotor 7 includes a rotating portion 70 sleeved around the outer periphery of the eccentric portion 6 and a second sealing layer 71 covering the outer periphery of the rotating portion 70. In other embodiments, the second sealing layer 71 may also be disposed on the inner wall 102 of the cylinder 1. The second sealing layer 71 has a second main body portion 710 and two second protrusions 711 located on the front and rear sides of the second main body portion 710, the second protrusions 711 protruding from the second main body portion 710 in a direction away from the rotating shaft 4. In this embodiment, the second sealing layer 71 is made of modified PTFE material with a low coefficient of friction or with certain lubricating properties. In other embodiments, the second sealing layer 71 may also be made of other materials that meet the requirements of coefficient of friction and sealing conditions and are resistant to high temperature and wear.

[0038] When the shaft 4 rotates under the drive of an external motor (not shown), the eccentric part 6 begins to rotate under the drive of the shaft 4, causing the rotor 7 to perform eccentric circular motion within the compression chamber P under the drive of the eccentric part 6. During this process, because the magnetism of the first section 20 and the first end 50 are the same, their magnetic forces repel each other, ensuring that a portion of the second main body 710 remains tightly against the inner wall 102. The two second protrusions 711 are respectively housed in the two second notches P3. Simultaneously, the slide plate 3 slides back and forth within the through groove 11, causing the first main body 320 to slide in contact with the groove wall 110. The two first protrusions 321 of the same first sealing layer 32 are respectively housed in the two first notches 111, making the contact between the first sealing layer 32 and the groove wall 110 of the through groove 11 tighter, preventing gas leakage from the through groove 11 and thus improving the compressor's sealing performance. The contact end 30 of the slide plate 3 always abuts against the second sealing layer 71. (See reference...) Figure 8 The first main body surface abuts against the second main body surface. Two first protrusions 321 of the same first sealing layer 32 are respectively located between two second protrusions 711, and the two first protrusions 321 abut against the two second protrusions 711 respectively. Through the abutting engagement of the slide plate 3 and the rotor 7, the compression chamber P is divided into an inlet chamber P1 and an outlet chamber P2. The inlet chamber P1 is connected to the inlet port 12 to introduce uncompressed gas, and the outlet chamber P2 is connected to the outlet port 13 to discharge compressed gas.

[0039] In summary, the socket connector and the connector assembly of the present invention have the following beneficial effects:

[0040] (1) By providing multiple first magnetic elements 2 within the cylinder wall 10, with the multiple first magnetic elements 2 distributed along the circumferential direction of the cylinder wall 10, and providing a second magnetic element 5 within the rotating shaft 4, when the rotor 7 performs eccentric circular motion along the inner wall 102 of the compression chamber P, the mutual repulsion between the first magnetic elements 2 and the second magnetic elements 5 ensures that a portion of the second sealing layer 71 remains in close contact with the inner wall 102. Simultaneously, compared to the prior art where a second magnetic element 5 is provided within the rotor 7, because the rotor 7 performs eccentric circular motion within the compression chamber P, the distance between the outer circumferential surface of the rotor 7 and the cylinder wall 10 continuously changes, causing the first magnetic elements 2 and the second magnetic elements 5 to... The magnetic force between the magnetic components 5 changes accordingly, causing uneven force on the rotor 7 and cylinder wall 10 during the rotation of the rotor 7, which can easily lead to damage. In this solution, the rotating shaft 4 and the compression chamber P are set to be coaxial, that is, the central axis S2 of the rotating shaft 4 and the central axis S1 of the compression chamber P coincide. Therefore, during the rotation of the rotating shaft 4, the distance between the outer peripheral surface of the rotating shaft 4 and the inner wall 102 remains unchanged, so that the magnitude of the magnetic force between the second magnetic component 5 in the rotating shaft 4 and the first magnetic component 2 in the cylinder 1 remains unchanged. This ensures that the outer peripheral surface of the rotor 7 is in close contact with the inner wall 102, while also facilitating the uniform force on the outer peripheral surface of the rotor 7 and the inner wall 102.

[0041] (2) By setting the second magnetic element 5 only in the first half 40, not only can the outer circumferential surface of half of the rotating shaft 4 always generate a magnetic force with the first magnetic element 2 when the rotating shaft 4 rotates, so that the rotor 7 and the cylinder wall 10 are subjected to uniform force during the rotation of the rotor 7; at the same time, compared with setting the second magnetic element 5 in both the first half 40 and the second half 41 of the rotating shaft 4, the number of second magnetic elements 5 set in the rotating shaft 4 can be reduced, thus reducing material costs. (3) By setting the magnetic force of the first segment 20 and the magnetic force of the first end 50 to repel each other, and the magnetic force of the first segment 20 and the magnetic force of the second end 51 to attract each other, when the rotor 7 moves eccentrically along the inner wall 102 of the cylinder 1, the mutual repulsion between the first segment 20 and the first end 50 makes the second sealing layer 71 always tightly abut against the inner wall 102. At the same time, the mutual attraction between the first segment 20 and the second end 51 also helps the rotor 7 to press against the inner wall 102, thereby preventing gas from leaking from the outlet chamber P2 to the inlet chamber P1 and improving the compression efficiency of the compressor.

[0042] (4) By setting the outer surfaces of the two sliding walls 310 of the slide plate 31 to be covered with a first sealing layer 32 respectively, the two first sealing layers 32 and the two opposite groove walls 110 of the through groove 11 can slide in contact. This not only avoids the sliding wall 310 made of metal material and the groove wall 110 of the through groove 11 from directly contacting each other, thus avoiding the large frictional resistance between them, the excessive temperature generated by friction, and the large loss of metal material, but also utilizes the characteristic of the lower friction coefficient of the first sealing layer 32 to make the sliding resistance of the slide plate 3 in the through groove 11 lower. At the same time, it also avoids the large gap between the sliding wall 310 made of metal material and the groove wall 110 of the through groove 11 caused by long-term sliding friction, which would lead to gas leakage and affect the gas compression efficiency.

[0043] (5) By setting the contact end 30 to abut against the second sealing layer 71, the sliding wall 310 of the slide plate 31 is prevented from directly contacting the outer peripheral surface of the rotating part 70 made of metal material. This reduces the wear of metal parts and also prevents the heat generated by friction between the two from further increasing the temperature of the compression cavity P, thereby affecting the magnetism of the first magnetic element 2 and the second magnetic element 5; and

[0044] By setting two first protrusions 321 of the same first sealing layer 32 between two second protrusions 711, and with the two first protrusions 321 abutting against the two second protrusions 711 respectively, the gap between the slide plate 3 and the rotor 7 is further reduced, resulting in good sealing performance in the compression chamber P.

[0045] (6) By setting the second sealing layer 71 on the outer periphery of the rotor 7, the metal rotating part 70 and the inner wall 102 of the cylinder 1 can be prevented from directly contacting each other, thus avoiding excessive friction between them and severe wear that would increase the gap between them and affect gas compression. By setting the second main body part 710 to always contact the inner wall 102 when the rotor 7 moves eccentrically along the inner wall 102, the rolling friction between the rotor 7 and the inner wall 102 is reduced, and the gap between the rotor 7 and the inner wall 102 is reduced, thereby improving the compression efficiency of the compressor. Furthermore, by setting two second protrusions 711 to abut against two second notches P3 respectively, the tight contact between the rotor 7 and the inner wall 102 is further ensured, preventing air leakage.

[0046] The above detailed description is only an illustration of a preferred embodiment of the present invention and is not intended to limit the patent scope of the present invention. Therefore, all equivalent technical changes made using the content of this invention's specification and illustrations are included within the patent scope of this invention.

Claims

1. A compressor, characterized in that, include: A cylinder includes a cylinder wall, and a compression chamber is located inside the cylinder and is formed by the cylinder wall; the cylinder wall includes an outer wall and an inner wall that are disposed opposite to each other along the radial direction of the compression chamber; Multiple first magnetic elements are disposed inside the cylinder wall, and the multiple first magnetic elements are dispersed along the circumferential direction of the cylinder wall; A through groove is provided through the cylinder wall along the radial direction of the compression chamber, and the through groove is connected to the compression chamber; A sliding plate is disposed in the through groove and has a contact end. The sliding plate slides in the through groove along the radial direction of the compression chamber. A rotating shaft is disposed inside the compression chamber, the rotating shaft is coaxial with the compression chamber, and a second magnetic element is disposed inside the rotating shaft; An eccentric part is fitted around the outer circumference of the rotating shaft, and the central axis of the eccentric part is parallel to and offset from the central axis of the rotating shaft. A rotor is placed inside the compression chamber and sleeved on the outer periphery of the eccentric part; the rotor moves eccentrically along the inner wall under the drive of the rotating shaft, and the outer peripheral surface of the rotor at least partially abuts against the inner wall, with the contact end abutting against the outer peripheral surface of the rotor, thereby dividing the compression chamber into an inlet chamber and an outlet chamber.

2. The compressor as described in claim 1, characterized in that, include: The rotating shaft has a first half and a second half, and the first half and the second half are located on opposite sides of the plane where the central axis of the rotating shaft is located, respectively. Multiple second magnetic components are dispersedly embedded in the first half along the circumferential direction of the rotating shaft.

3. The compressor as described in claim 2, characterized in that, include: The first magnetic component has a first segment and a second segment arranged opposite to each other, with the first segment being closer to the inner wall than the second segment; the second magnetic component has a first end and a second end arranged opposite to each other, with the first end being closer to the outer circumferential surface of the rotating shaft than the second end; the magnetic forces of the first segment and the first end repel each other, while the magnetic forces of the first segment and the second end attract each other.

4. The compressor as described in claim 1, characterized in that, include: The rotating shaft has a first half and a second half, and the first half and the second half are located on opposite sides of the plane where the central axis of the rotating shaft is located. The second magnetic element is a permanent magnet material, and the first half is at least partially composed of the second magnetic element.

5. The compressor as described in claim 4, characterized in that, include: The first magnetic component has a first segment and a second segment arranged opposite to each other, with the first segment being closer to the inner wall than the second segment; the second magnetic component has a first end and a second end arranged opposite to each other, with the first end being closer to the outer circumferential surface of the rotating shaft than the second end, and the magnetic forces of the first segment and the first half repel each other.

6. The compressor as claimed in claim 1, characterized in that, include: The slide plate includes a sliding plate and two first sealing layers. The sliding plate includes two sliding walls arranged opposite to each other. The two first sealing layers are respectively covered on the two sliding walls. The through groove includes two groove walls arranged opposite to each other. The two first sealing layers are in sliding contact with the two groove walls respectively.

7. The compressor as described in claim 6, characterized in that, include: The first sealing layer has a first main body and two first protrusions that protrude from the first main body in a direction away from the slide plate; the through groove also includes a plurality of first notches, at least two of which are recessed from the same groove wall in a direction away from the slide plate; the two first main bodies slide in contact with the two groove walls respectively, and the two first protrusions of the same sealing layer are respectively received in the two first notches.

8. The compressor as claimed in claim 7, characterized in that, include: The cylinder wall also includes two side walls that are arranged opposite each other along the central axis of the compression chamber, and the side walls connect the outer wall and the inner wall; the sliding vane also includes two connecting walls that are arranged opposite each other along the central axis of the compression chamber, and the connecting walls connect the two sliding walls; the first main body is located between the two first protrusions, each of the first protrusions includes an outer side surface, and the outer side surface, the side wall and the connecting wall are flush when viewed along the radial direction of the compression chamber.

9. The compressor as claimed in claim 6, characterized in that, include: The first sealing layer has a first main body and two first protrusions that protrude from the first main body in a direction away from the slide plate; the rotor includes a rotating part and a second sealing layer sleeved on the outer periphery of the rotating part, the second sealing layer has a second main body and two second protrusions that protrude from the second main body in a direction away from the rotating shaft; when the contact end abuts against the second sealing layer, the two first protrusions of the same first sealing layer are located between the two second protrusions, and the two first protrusions abut against the two second protrusions respectively.

10. The compressor as claimed in claim 1, characterized in that, include: The rotor includes a rotating part and a second sealing layer sleeved on the outer periphery of the rotating part. The second sealing layer has a second main body and two second protrusions that protrude from the second main body in a direction away from the rotating axis. The compression chamber includes two second notches that are recessed from the inner wall towards the outer wall. When the rotor moves eccentrically along the inner wall, the second main body at least partially contacts the inner wall, and the two second protrusions are respectively received in the two second notches.

Images