A rotor structure and compressor

Abstract

The application provides a rotor structure and a compressor, and the rotor structure comprises a rotor component, the rotor component is rotatably arranged, a connecting component is arranged on the rotor component, the connecting component is telescopically arranged, an eccentric component is detachably sleeved on the rotor component, the eccentric component is provided with a socket for inserting the connecting component, the connecting component is arranged in correspondence with the side wall of the socket, the connecting component has a connected state and a disengaged state, when the connecting component is in the connected state, the connecting component drives the eccentric component to rotate, when the connecting component is in the disengaged state, the connecting component abuts against the side wall of the socket, so that the side wall of the socket acts on the connecting component, thereby pushing the connecting component to separate from the socket. The rotor structure solves the problem of relying on electrical control and realizing variable capacity by changing the high and low air pressure in the related art, and effectively prevents the compressor from being stuck and stopped due to large working resistance, inability to adjust and the like.

Description

Technical Field

[0001] This invention relates to the field of variable capacity compressor technology, specifically to a rotor structure and compressor. Background Technology

[0002] Currently, variable displacement structures are widely used in rotary compressors (vertical) in refrigeration systems. Variable displacement can be understood as the use of external force in conjunction with the structure of some parts of the pump body to stop working in a variable displacement environment, without affecting the operation of other cylinders or the operation of the compressor. It can also be described as the effect of changing the volume of the working cylinder of the compressor pump body. The most obvious advantage of variable displacement structure is that the change in working volume can reduce the working resistance of the pump body under heavy working conditions, directly avoiding the compressor from jamming and shutting down due to excessive current.

[0003] Existing variable capacity structures such as Figure 9 As shown. When the solenoid valve connecting the exhaust passage to the cylinder is opened, high-pressure gas enters the cylinder spring hole. The high-pressure gas inside the spring hole pushes the pin downward. At this time, the slide is opened and cooperates with the roller corresponding to this part of the cylinder to start working. When the solenoid valve is closed, there is no high-pressure gas in the cylinder spring hole. The pin is rebounded upward by the force of the spring and embedded in the slide slot. The slide is locked, and the crankshaft in this part of the cylinder rotates freely.

[0004] However, the above setup requires the thrust of gas to complete the control action, which can easily lead to insufficient thrust, component jamming, and other problems. The structure is difficult to control and is not conducive to the stable operation of the equipment.

[0005] Therefore, existing technologies need further development. Summary of the Invention

[0006] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a rotor structure and compressor to solve the technical problem of unstable rotor control in related technologies.

[0007] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: a rotor structure is provided, comprising: a rotor component, which is rotatably disposed; a connecting component is disposed on the rotor component, which is telescopically disposed; an eccentric component, which is detachably sleeved on the rotor component; and an insertion hole for the connecting component to be inserted into the eccentric component; wherein the connecting component is disposed correspondingly to the side wall of the insertion hole; the connecting component has a connected state and a disengaged state; when the connecting component is in the connected state, the connecting component drives the eccentric component to rotate; when the connecting component is in the disengaged state, the connecting component abuts against the side wall of the insertion hole, so that the side wall of the insertion hole acts on the connecting component, thereby pushing the connecting component to separate from the insertion hole.

[0008] Furthermore, the connecting component includes a locking part, which is provided with a first abutting surface for abutting against the inner wall of the socket. When the connecting component is in the connected state, the first abutting surface abuts against the inner wall of the socket; when the connecting component is in the disengaged state, the first abutting surface abuts against the inner wall of the socket, and the first abutting surface and the inner wall of the socket move relative to each other.

[0009] Furthermore, when the connecting component is in the connected state, the first abutting surface gradually moves away from the inner wall of the insertion hole along the direction away from the rotor component from the locking part.

[0010] Furthermore, there are two first abutting surfaces, which are located on opposite sides of the locking part.

[0011] Furthermore, the locking part includes a second abutting surface, which is connected to the first abutting surface. The second abutting surface is located at one end of the locking part away from the rotation axis of the rotor component, and the second abutting surface is an arc-shaped surface.

[0012] Furthermore, the rotor component is provided with mounting holes, and the connecting component is movably disposed within the mounting holes.

[0013] Furthermore, the connecting component includes: a limiting part located outside the insertion hole, which abuts against the eccentric component when the connecting component is in the connected state; a connecting body connected to the limiting part; and an elastic element sleeved on the connecting body, with one end of the elastic element connected to the limiting part and the other end of the elastic element connected to the rotor component.

[0014] Furthermore, both the insertion hole and the mounting hole are circular holes, and both the connecting body and the limiting part are cylindrical structures; wherein, the inner diameter of the mounting hole is A, the inner diameter of the insertion hole is B; the outer diameter of the limiting part is D, and the outer diameter of the connecting body is E, A>D>B>E.

[0015] Furthermore, a chamfer is provided at the opening of the insertion hole, the chamfer surrounds the insertion hole, and the chamfer is recessed into the eccentric component; and / or, a connecting hole is provided on the eccentric component for the rotor component to pass through, the connecting hole penetrates the eccentric component, one end of the insertion hole communicates with the connecting hole, and the other end of the insertion hole communicates with the outside of the eccentric component.

[0016] A compressor is provided, including a rotor structure.

[0017] Beneficial effects:

[0018] 1. The rotor structure of this patent completes the opening and closing of the structure through the inclination of the head of the built-in pin of the eccentric component and the working resistance of the eccentric component. It no longer relies on electrical control and variable pressure to achieve variable capacity, effectively preventing the compressor from jamming and stopping due to high working resistance or inability to adjust.

[0019] 2. It can automatically adjust the variable capacity start and stop according to the single-unit operation, effectively protecting the pump body parts from wear and leakage due to heavy working resistance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the internal structure of the rotor structure used in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the connecting components used in an embodiment of the present invention in a connected state;

[0022] Figure 3 This is a schematic diagram showing the connecting component in a disengaged state in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the rotor component used in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the external structure of the rotor structure used in an embodiment of the present invention;

[0025] Figure 6 yes Figure 4 A magnified view of part A in the image;

[0026] Figure 7 This is a force analysis diagram of the connecting components used in an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the eccentric component used in an embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram of the variable displacement structure of a compressor in the prior art.

[0029] The above figures include the following reference numerals:

[0030] 1. Rotor assembly; 11. Mounting hole; 12. Connecting hole; 2. Connecting component; 21. Locking part; 211. First abutting surface; 212. Second abutting surface; 22. Limiting part; 23. Connecting body; 24. Elastic element; 3. Eccentric component; 31. Insertion hole; 311. Chamfered part. Detailed Implementation

[0031] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0032] According to an embodiment of the present invention, a rotor structure is provided; please refer to [link / reference]. Figures 1 to 9 The device includes: a rotor component 1, which is rotatably mounted; a connecting component 2, which is telescopically mounted on the rotor component 1; an eccentric component 3, which is detachably mounted on the rotor component 1; and an insertion hole 31, which is provided on the eccentric component 3 for the connecting component 2 to be inserted into. The connecting component 2 is correspondingly mounted to the side wall of the insertion hole 31. The connecting component 2 has a connected state and a disengaged state. When the connecting component 2 is in the connected state, it drives the eccentric component 3 to rotate. When the connecting component 2 is in the disengaged state, it abuts against the side wall of the insertion hole 31, so that the side wall of the insertion hole 31 acts on the connecting component 2, thereby pushing the connecting component 2 to separate from the insertion hole 31.

[0033] Using the above-mentioned device, the pressure inside the compressor cavity and the force F generated by the rotation of the rotor component 1 change continuously with the working state of the compressor. F, together with the working resistance, generates a force f that pushes the connecting component 2 to move. The connecting component 2 has a connected state and a disconnected state. When F exceeds a certain range, the connecting component 2 abuts against the side wall of the socket 31, so that the side wall of the socket 31 acts on the connecting component 2 to generate f. f pushes the connecting component 2 to separate from the socket 31, so that the connecting component 2 is in the disconnected state. When F is within a certain range, the connecting component 2 is inserted into the socket 31 on the eccentric component 3. The connecting component 2 drives the eccentric component 3 to rotate. At this time, the connecting component 2 is in the connected state. The compressor achieves variable capacity by changing the connected state and disconnected state of the connecting component 2. This solves the problem of relying on electrical control and changing the gas pressure to achieve variable capacity in related technologies, and effectively prevents the compressor from jamming and stopping due to high working resistance or inability to adjust.

[0034] In the rotor structure of this embodiment, see Figures 1 to 2 The connecting component 2 includes a locking part 21, on which a first abutting surface 211 is provided for abutting against the inner wall of the socket 31. When the connecting component 2 is in the connected state, the first abutting surface 211 abuts against the inner wall of the socket 31; when the connecting component 2 is in the disengaged state, the first abutting surface 211 abuts against the inner wall of the socket 31, and the first abutting surface 211 and the inner wall of the socket 31 move relative to each other. Thus, when the compressor's working pressure is within a certain range, the locking part 21 on the connecting component 2 is inserted into the socket 31, and the first abutting surface 211 on the locking part abuts against the inner wall of the socket 31, and the connecting component 2 is in the connected state. When the compressor's working pressure exceeds a certain range, the first abutting surface 211 abuts against the inner wall of the socket 31, and the first abutting surface 211 and the inner wall of the socket 31 move relative to each other, the connecting component 2 moves out of the socket 31, and the connecting component 2 is in the disengaged state.

[0035] In the rotor structure of this embodiment, see Figure 2 When the connecting component 2 is in the connected state, the first abutting surface 211 gradually moves away from the inner wall of the insertion hole 31 along the direction away from the rotor component 1 of the locking part 21. Specifically, the first abutting surface 211 gradually contracts from the direction of the rotor component 1 towards the direction of the eccentric component 3. In this way, the force F on the first abutting surface 211 can be decomposed along the inclined first abutting surface 211 into a force perpendicular to the axis of the connecting component 2 and a force f horizontal to the axis of the connecting component 2. When f is large enough, it will push the connecting component 2 to move in the direction of the rotation axis of the rotor component 1.

[0036] In the rotor structure of this embodiment, see Figure 2 There are two first abutting surfaces 211, which are located on opposite sides of the locking part 21. Thus, as the rotor component 1 rotates in different directions, the first abutting surface 211 that abuts against the inner wall of the insertion hole 31 will also change. When the rotor component 1 rotates forward, one first abutting surface 211 abuts against the inner wall of the insertion hole 31, and when the rotor component 1 rotates in reverse, the other first abutting surface 211 abuts against the inner wall of the insertion hole 31.

[0037] In the rotor structure of this embodiment, see Figure 2 The locking part 21 includes a second abutting surface 212, which is connected to the first abutting surface 211. The second abutting surface 212 is located at one end of the locking part 21 away from the rotation axis of the rotor component 1, and the second abutting surface 212 is arc-shaped. In this way, the arc-shaped design of the second abutting surface 212 reduces the resistance encountered by the connecting component 2 when it is inserted into the insertion hole 31, and makes it easier for the connecting component 2 to switch between the connected state and the disconnected state.

[0038] In the rotor structure of this embodiment, see Figure 2 The rotor component 1 is provided with a mounting hole 11, and the connecting component 2 is movably disposed in the mounting hole 11. Thus, when the working pressure of the compressor exceeds a certain range, the connecting component 2 is in a disengaged state and is located in the mounting hole 11. When the working pressure of the compressor decreases to a certain range, the connecting component 2 moves out of the mounting hole 11 and is inserted into the insertion hole 31.

[0039] In the rotor structure of this embodiment, see Figures 1 to 2The connecting component 2 includes: a limiting part 22, located outside the insertion hole 31, which abuts against the eccentric component 3 when the connecting component 2 is in the connected state; a connecting body 23, connected to the limiting part 22; and an elastic element 24, sleeved on the connecting body 23, with one end connected to the limiting part 22 and the other end connected to the rotor component 1. Thus, when the connecting component 2 is in the connected state, the elastic element 24, through its connection to the connecting body 23, pushes the connecting component 2 to move away from the rotation axis of the rotor component 1. The limiting part 22 moves in the same direction as the connecting component 2, abutting against the outer wall of the eccentric component 3. At this time, the depth of the connecting component 2 within the insertion hole 31 is H, and the depth H needs to be adjusted according to the material displacement and deformation of the connecting component 2.

[0040] In the rotor structure of this embodiment, see Figures 1 to 8 Both the insertion hole 31 and the mounting hole 11 are circular holes, and both the connecting body 23 and the limiting part 22 are cylindrical structures; wherein, the inner diameter of the mounting hole 11 is A, the inner diameter of the insertion hole 31 is B; the outer diameter of the limiting part 22 is D, and the outer diameter of the connecting body 23 is E, A>D>B>E. Specifically, mounting hole 11 is a countersunk hole with an inner diameter of A on rotor component 1; insertion hole 31 is a single-sided through hole with an inner diameter of B in the middle of eccentric component 3; limiting part 22 is a protruding structure provided on the periphery of connecting component 2 with an outer diameter of D; limiting part 22 cooperates with mounting hole 11, wherein the diameter dimension D is defined as A-0.003 mm, and the depth dimension is not required; connecting body 23 is a cylinder at one end of the connecting component near the rotation axis of rotor component 1 with an inner diameter of E; the diameter relationship of the above components is A>D>B>E, that is, the diameter of connecting body 23 is smaller than the inner diameter of insertion hole 31, the inner diameter of insertion hole 31 is smaller than the outer diameter of limiting part 22, and the outer diameter of limiting part 22 is smaller than the inner diameter of mounting hole 11.

[0041] In the rotor structure of this embodiment, see Figures 1 to 8 The insertion hole 31 has a chamfered portion 311 at its opening, which surrounds the insertion hole 31 and is recessed into the eccentric component 3; and / or, the eccentric component 3 has a connecting hole 12 for the rotor component 1 to pass through, which extends through the eccentric component 3. One end of the insertion hole 31 communicates with the connecting hole 12, and the other end of the insertion hole 31 communicates with the outside of the eccentric component 3. In this way, the eccentric component 3 is connected to the rotor component 1 through the connecting hole 12. One end of the insertion hole 31 communicates with the connecting hole 12, and the other end is located on the outer wall of the eccentric component 3. The chamfered portion 311 at the end located on the outer wall of the eccentric component 3 reduces the resistance when the connecting component 2 is inserted into the insertion hole 31, making the process of inserting the connecting component 2 into the eccentric component 3 easier.

[0042] See Figures 1 to 9According to an embodiment of the present invention, a compressor is provided, including a rotor structure.

[0043] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0044] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0045] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0046] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0047] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A rotor structure, characterized in that, include: A rotor component (1) is rotatably disposed; a connecting component (2) is disposed on the rotor component (1), and the connecting component (2) is telescopically disposed; An eccentric component (3) is detachably mounted on the rotor component (1); the eccentric component (3) is provided with a socket (31) for the connecting component (2) to be inserted. The eccentric component (3) is provided with a connecting hole (12) through which the rotor component (1) passes. The connecting hole (12) passes through the eccentric component (3). One end of the insertion hole (31) is connected to the connecting hole (12), and the other end of the insertion hole (31) is connected to the outside of the eccentric component (3). The connecting component (2) is provided corresponding to the side wall of the socket (31); the connecting component (2) includes a locking part (21), and the locking part (21) is provided with a first abutting surface (211) for abutting against the inner wall of the socket (31); the connecting component (2) has a connected state and a disengaged state. When the connecting component (2) is in the connected state, the first abutting surface (211) abuts against the inner wall of the socket (31); along the direction of the locking part (21) away from the rotor component (1), the first abutting surface (211) gradually moves away from the inner wall of the socket (31); When the working pressure of the compressor is within a certain range, the locking part (21) on the connecting part (2) is inserted into the socket (31), the first contact surface (211) on the locking part abuts against the inner wall of the socket (31), the connecting part (2) is in a connected state, and the connecting part (2) drives the eccentric part (3) to rotate. When the working pressure of the compressor exceeds a certain range, the first contact surface (211) moves relative to the inner wall of the socket (31), the connecting part (2) moves out of the socket (31), and the connecting part (2) is in a disengaged state.

2. The rotor structure according to claim 1, characterized in that, There are two first contact surfaces (211), and the two first contact surfaces (211) are located on opposite sides of the locking part (21).

3. The rotor structure according to claim 2, characterized in that, The locking part (21) includes a second abutting surface (212), which is connected to the first abutting surface (211). The second abutting surface (212) is located at one end of the locking part (21) away from the rotation axis of the rotor component (1). The second abutting surface (212) is an arc-shaped surface.

4. The rotor structure according to claim 1, characterized in that, The rotor component (1) is provided with a mounting hole (11), and the connecting component (2) is movably disposed in the mounting hole (11).

5. The rotor structure according to claim 4, characterized in that, The connecting component (2) includes: The limiting part (22) is located outside the socket (31). When the connecting member (2) is in the connected state, the limiting part (22) abuts against the eccentric member (3). Connecting body (23), the connecting body (23) is connected to the limiting part (22); An elastic element (24) is sleeved on the connecting body (23). One end of the elastic element (24) is connected to the limiting part (22), and the other end of the elastic element (24) is connected to the rotor component (1).

6. The rotor structure according to claim 5, characterized in that, Both the insertion hole (31) and the mounting hole (11) are circular holes, and both the connecting body (23) and the limiting part (22) are cylindrical structures; wherein, the inner diameter of the mounting hole (11) is A, the inner diameter of the insertion hole (31) is B, the outer diameter of the limiting part (22) is D, and the outer diameter of the connecting body (23) is E, A>D>B>E.

7. The rotor structure according to claim 1, characterized in that, The socket (31) has a chamfered portion (311) at the opening, the chamfered portion (311) surrounds the socket (31), and the chamfered portion (311) is recessed into the eccentric component (3).

8. A compressor, comprising a rotor structure, characterized in that, The rotor structure is the rotor structure according to any one of claims 1 to 7.

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