Rolling piston compressor and air conditioning system having the same

Abstract

The application provides a rolling rotor type compressor and an air conditioning system with the same, which comprises a shell, a pump body assembly arranged in an inner cavity of the shell, the pump body assembly comprising a cylinder, a roller arranged in a working cavity of the cylinder, and a sliding vane arranged on the cylinder; the cylinder is provided with a cylinder spring hole, a sliding vane spring is arranged in the cylinder spring hole, one end of the sliding vane is in abutment with the outer periphery of the roller, and the other end is in driving connection with the sliding vane spring; a spring control assembly comprises a sliding block, the sliding block is slidingly arranged on the cylinder, and the sliding block has a first working position for limiting the sliding vane spring to prevent the sliding vane spring from reciprocating compression and a second working position for disengaging from the sliding vane spring. The rolling rotor type compressor can reduce the compression frequency of the spring, improve the service life of the spring, and further improve the reliability of the compressor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compressor, in particular to a rolling rotor compressor and an air conditioning system with the same. BACKGROUND

[0002] In the rolling rotor compressor, the cylinder, the rotor and the vane form the working chamber of the compressor, and the vane divides the working chamber into high-pressure chamber and low-pressure chamber; the upper flange and the lower flange are respectively located at the upper and lower ends of the cylinder to seal the working chamber; the crankshaft penetrates the pump body and the motor of the compressor, and under the action of the motor, the crankshaft drives the rotor to rotate eccentrically; under the action of the spring, the vane reciprocates and always keeps contact with the roller, thereby forming the high-pressure chamber and the low-pressure chamber which are independent of each other. However, in actual use, due to the limited service life of the spring, the fatigue fracture of the spring has an adverse effect on the reliability of the compressor. SUMMARY

[0003] The present application aims to provide a rolling rotor compressor and an air conditioning system with the same to solve the adverse effect of the fatigue fracture of the vane spring.

[0004] To achieve the above-mentioned purpose, according to one aspect of the present application, a rolling rotor compressor is provided, comprising:

[0005] a housing;

[0006] a pump body assembly arranged in the inner cavity of the housing, the pump body assembly comprising a cylinder, a roller arranged in the working chamber of the cylinder, and a vane arranged on the cylinder;

[0007] a cylinder spring hole is arranged on the cylinder, one end of the cylinder spring hole is in communication with the inner cavity of the housing, and the other end is provided with a vane slot for the reciprocating movement of the vane between the working chamber of the cylinder and the cylinder spring hole;

[0008] a vane spring is arranged in the cylinder spring hole, one end of the vane is in abutment with the outer periphery of the roller, and the other end is drivingly connected with the vane spring;

[0009] a spring control assembly comprising a sliding block, the sliding block is slidingly arranged on the cylinder, and the sliding block has a first working position for limiting the vane spring to prevent the reciprocating compression of the vane spring, and a second working position for disengaging the vane spring.

[0010] Further, a cylinder sliding block hole is arranged on the cylinder, one end of the cylinder sliding block hole is in communication with the cylinder spring hole, and the sliding block is slidingly arranged in the cylinder sliding block hole;

[0011] The spring control assembly further comprises a slider driving part, which is in driving connection with the slider to drive the slider to be in the first working position or the second working position.

[0012] One end of the slider in driving connection with the slider spring is provided with a clearance slot, when the slider is in the first working position, one end of the slider extends out of the cylinder slider hole and is inserted into the clearance slot to limit the slider spring.

[0013] Further, the other end of the cylinder slider hole is closed, and the outer peripheral wall of the other end of the slider is in airtight connection with the inner peripheral wall of the cylinder slider hole to form an airtight cavity between the closed end of the cylinder slider hole and the slider;

[0014] The slider driving part comprises a slider spring, an air inlet pipe and a slider limiting part;

[0015] The slider spring is arranged in the airtight cavity of the cylinder slider hole, one end of the slider spring is in abutment with the closed end of the cylinder slider hole, and the other end of the slider spring is in abutment with the slider;

[0016] One end of the air inlet pipe is in communication with the airtight cavity of the cylinder spring hole, and the other end of the air inlet pipe is in communication with a gas source, and the air inlet pipe is provided with an electronic valve for controlling the opening and closing of the air inlet pipe;

[0017] The slider limiting part comprises a pin, the pin is slidingly arranged on the cylinder, and the pin has a first position for limiting the slider to prevent the slider from sliding and a second position for disengaging the slider.

[0018] Further, the gas source is the gas in a flash evaporator, and the flash evaporator is arranged in a circulation loop of the rolling piston compressor.

[0019] Further, the gas source is high-pressure gas in the inner cavity of the shell.

[0020] Further, the cylinder is provided with a cylinder pin hole, one end of the cylinder pin hole is in communication with the cylinder slider hole, and the pin is slidingly arranged in the cylinder pin hole;

[0021] The slider limiting part further comprises a pin driving part, which is in driving connection with the pin to drive the pin to be in the first position or the second position;

[0022] The slider is provided with a limiting part, when the pin is in the first position, one end of the pin extends out of the cylinder pin hole and is in abutment with the limiting part of the slider.

[0023] Further, the pin driving part comprises a pin spring and a control device;

[0024] The pin spring is in driving connection with the pin, and drives the pin to return to the first position or the second position.

[0025] The control device is in driving connection with the pin, and controls the pin to be in the second position or the first position against the elastic force of the pin spring.

[0026] Further, the control device is an electromagnetic control unit.

[0027] Further, the slider is in a T-shaped column structure, and the cylinder slider hole is in a corresponding stepped hole structure.

[0028] The large end of the slider is in airtight connection with the cylinder slider hole, the small end of the slider can extend out of the cylinder slider hole and be inserted into the accommodation slot, and the stepped surface of the slider constitutes the limiting part matched with the pin.

[0029] The application also provides an air conditioning system comprising a compressor, and the compressor is the rolling rotor type compressor as described in any one of the above.

[0030] According to the technical scheme of the application, the position of the slider can be adjusted according to the operating state of the compressor. In the starting stage of the compressor, the slider is in the second working position, the vane is pushed by the vane spring to contact the roller, after the compressor is in stable operation, the slider moves to the first working position, the vane spring is separated from the vane, the vane keeps in contact with the roller under the action of the high-pressure gas in the shell, the purpose of reducing the compression times of the spring is achieved, the service life of the spring is improved, and the reliability of the compressor is improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustration. The embodiments of the application, together with its details, are shown and described in conjunction with the drawings.

[0032] Figure 1 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustration. The embodiments of the application, together with its details, are shown and described in conjunction with the drawings.

[0033] Figure 2 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustration. The embodiments of the application, together with its details, are shown and described in conjunction with the drawings.

[0034] Figure 3 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustration. The embodiments of the application, together with its details, are shown and described in conjunction with the drawings.

[0035] Figure 4 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustration. The embodiments of the application, together with its details, are shown and described in conjunction with the drawings.

[0036] Figure 5 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustration. The embodiments of the application, together with its details, are shown and described in conjunction with the drawings.

[0037] Figure 6 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustration. The embodiments of the application, together with its details, are shown and described in conjunction with the drawings.Figure 5 A-A sectional view in FIG. 1 Figure 1 , in which the slider is in the second working position;

[0038] Figure 7 A-A sectional view in FIG. 1 Figure 5 A-A sectional view in FIG. 1 Figure 2 , in which the slider is in the first working position;

[0039] Figure 8 A schematic force diagram of the slider in the normal operation stage of the compressor;

[0040] wherein:

[0041] 1 - housing; 2 - pump body assembly; 3 - spring control assembly; 4 - flash evaporator; 5 - motor; 6 - condenser; 7 - evaporator; 8 - primary throttle valve; 9 - secondary throttle valve; 10 - liquid accumulator; 11 - exhaust pipe; 12 - suction pipe;

[0042] 21 - cylinder; 22 - roller; 23 - sliding vane; 24 - sliding vane spring; 25 - upper flange; 26 - lower flange; 27 - crankshaft;

[0043] 31 - slider; 32 - slider spring; 33 - inlet pipe; 34 - electronic valve; 35 - pin; 36 - pin spring; 37 - control device; 38 - backing plate;

[0044] 211 - cylinder spring hole; 212 - cylinder slider hole; 213 - cylinder pin hole; 214 - cylinder suction port; 231 - clearance slot. DETAILED DESCRIPTION

[0045] The application will be described in greater detail by reference to the accompanying drawings, in which the following examples are illustrated. It should be noted that the examples in the present application and the features in the examples can be combined with each other without conflict.

[0046] It should be noted that the following detailed description is illustrative only and is intended to provide further description of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0047] It should be noted that the terms used herein are merely for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should be further understood that the terms "comprise" and / or "include" as used herein specify the presence of features, steps, operations, devices, components and / or combinations thereof.

[0048] In order to solve the adverse effects caused by the fatigue fracture of the sliding vane spring of the rolling rotor compressor in the prior art, the rolling rotor compressor and the air conditioning system having the same are provided.

[0049] As shown in Figure 1 , the rolling rotor compressor mainly comprises a closed shell 1, a motor 5 accommodated in the shell 1, and a pump body assembly 2 driven by the motor 5.

[0050] As shown in Figures 2 to 5 , the pump body assembly 2 comprises a cylinder 21 having a working chamber in the center, upper and lower flanges 25 and 26 sealing the working chamber, a crankshaft 27 slidingly matched with the flanges and having an eccentric shaft, and rollers 22 arranged in the working chamber and sliding vanes 23 abutting the outer periphery of the rollers 22.

[0051] The cylinder 21 is provided with a cylinder spring hole 211, the outer end of the cylinder spring hole 211 is communicated with the inner cavity of the shell 1, and the inner end is provided with a sliding vane groove for the reciprocating movement of the sliding vane 23 between the working chamber of the cylinder 21, and the cylinder spring 24 is arranged in the cylinder spring hole 211. The sliding vane 23 can reciprocate in the sliding vane groove under the pressing of the cylinder spring 24 to always keep contact with the outer periphery of the roller 22, and when the roller 22 makes eccentric movement, the working chamber of the cylinder 21 is divided into high-pressure chamber and low-pressure chamber which are independent of each other.

[0052] The pump body assembly 2 is provided with a spring control assembly 3, and the spring control assembly 3 comprises a sliding block 31 slidingly arranged on the cylinder 21. As shown in Figure 7 , the sliding block 31 has a first working position limiting the cylinder spring 24, so that the cylinder spring 24 is in a static compression state, and then the pressing of the cylinder spring 24 on the sliding vane 23 is released, avoiding the problems of spring fatigue wear and bending damage caused by the cylinder spring 24 always following the movement of the sliding vane 23. As shown in Figure 6 , the sliding block 31 also has a second working position disengaged from the cylinder spring 24 to restore the pressing of the cylinder spring 24 on the sliding vane 23.

[0053] When the rolling rotor compressor of the present application is used, the position of the sliding block 31 is adjusted according to the operating condition of the compressor. In the starting stage of the compressor, the sliding block 31 is in the second working position, the sliding vane 4 is reciprocated by the cylinder spring 24 to contact the roller 22, and after the compressor is stably operated, the shell 1 is filled with high-pressure gas, the sliding block 31 moves to the first working position to limit the cylinder spring 24, the pressing of the cylinder spring 24 on the sliding vane 23 is released, and the sliding vane 23 reciprocates under the pressure of the high-pressure gas in the shell 1 acting on the back surface (the surface abutting the cylinder spring 24) of the sliding vane 23 to contact the roller 22.

[0054] As shown in Figure 6As shown, the cylinder 21 is provided with a cylinder slider hole 212, the left end of the cylinder slider hole 212 is communicated with the cylinder spring hole 211, and the slider 31 is slidingly arranged in the cylinder slider hole 212.

[0055] As shown in the figure, the back surface of the sliding piece 23 abutting against the sliding piece spring 24 is provided with a let-in groove 231, when the slider 31 is in the first working position, the left end of the slider 31 extends out of the cylinder slider hole 212 and is inserted into the let-in groove 231, at this time, the slider 31 abuts against the top end of the sliding piece spring 24 to limit the sliding piece spring 24, so as to realize the disengagement of the sliding piece 23 and the sliding piece spring 24, when the slider 31 is in the second working position, the slider 31 is completely located in the cylinder slider hole 212, and the sliding piece spring 24 abuts against both sides of the let-in groove 231 to realize the pressing of the sliding piece 23. Figure 4 As shown in the figure, the back surface of the sliding piece 23 abutting against the sliding piece spring 24 is provided with a let-in groove 231, when the slider 31 is in the first working position, the left end of the slider 31 extends out of the cylinder slider hole 212 and is inserted into the let-in groove 231, at this time, the slider 31 abuts against the top end of the sliding piece spring 24 to limit the sliding piece spring 24, so as to realize the disengagement of the sliding piece 23 and the sliding piece spring 24, when the slider 31 is in the second working position, the slider 31 is completely located in the cylinder slider hole 212, and the sliding piece spring 24 abuts against both sides of the let-in groove 231 to realize the pressing of the sliding piece 23.

[0056] Figure 6 As shown in the figure, the back surface of the sliding piece 23 abutting against the sliding piece spring 24 is provided with a let-in groove 231, when the slider 31 is in the first working position, the left end of the slider 31 extends out of the cylinder slider hole 212 and is inserted into the let-in groove 231, at this time, the slider 31 abuts against the top end of the sliding piece spring 24 to limit the sliding piece spring 24, so as to realize the disengagement of the sliding piece 23 and the sliding piece spring 24, when the slider 31 is in the second working position, the slider 31 is completely located in the cylinder slider hole 212, and the sliding piece spring 24 abuts against both sides of the let-in groove 231 to realize the pressing of the sliding piece 23.

[0057] In this embodiment, the slider driving part includes a slider spring 32, an air inlet pipe 33 and a slider limiting part.

[0058] The right end of the cylinder slider hole 212 away from the cylinder spring hole 211 is closed, specifically, a pad plate 38 is arranged at the right end of the cylinder slider hole 212, and is sealed and fixed with the cylinder 21 by welding or gluing, at the same time, the outer peripheral wall of the right end of the slider 31 close to the pad plate 38 is airtight connected with the inner peripheral wall of the cylinder slider hole 212, so as to form an airtight cavity between the pad plate 38 and the slider 31 in the cylinder slider hole 212, the slider spring 32 is arranged in the airtight cavity, the right end abuts against the pad plate 38, and the left end abuts against the sliding piece 23.

[0059] The pad plate 38 is provided with a small hole in the center, the air inlet pipe 33 is communicated with the airtight cavity of the cylinder slider hole 212 through the small hole in the center of the pad plate 38, the communication position needs to be welded or sealed by glue, the other end of the air inlet pipe 33 is communicated with the upper part of the flash evaporator 4 of the air conditioning system where the compressor is located, at the same time, an electronic valve 34 is arranged in the communication pipeline to control the opening and closing of the pipeline.

[0060] As a variable implementation, the other end of the air inlet pipe 33 can be directly communicated with the inner cavity of the shell 1.

[0061] ​The slider limiting part comprises a pin 35 slidingly arranged on the cylinder 21, the pin 35 has a first position to limit the slider 31 to prevent the slider 31 from sliding back and forth in the cylinder slider hole 212, and the pin 35 also has a second position to disengage from the slider 31, at this time, the slider 31 can slide back and forth in the cylinder slider hole 212, of course, under the drive of the slider driving part.

[0062] Specifically, the cylinder 21 is provided with a cylinder pin hole 213, the upper end of the cylinder pin hole 213 is communicated with the middle part of the cylinder slider hole 212, and the pin 35 is slidingly arranged in the cylinder pin hole 213.

[0063] The slider limiting part further comprises a pin driving part, the pin driving part is drivingly connected with the pin 35 to drive the pin 35 to move along the axial direction of the cylinder pin hole 213, so as to switch the pin 35 between the first position and the second position.

[0064] As shown in Figure 6 , when the pin 35 is in the first position, one end of the pin 35 protrudes out of the cylinder pin hole 213 and abuts against the limiting part of the slider 31, so as to prevent the slider 31 from sliding back and forth in the cylinder slider hole 212. As shown in Figure 7 , when the pin 35 is in the second position, the pin 35 disengages from the slider 31 and is completely located in the cylinder pin hole 213.

[0065] In this embodiment, the pin driving part comprises a pin spring 36 and a control device 37. The pin spring 36 is drivingly connected with the pin 35 to drive the pin 35 to return to the first position or the second position, and the control device 37 is drivingly connected with the pin 35 to control the pin 35 to be in the second position or the first position against the elastic force of the pin spring 36. For example, when the pin spring 36 provides a force to the pin 35 to return to the first position, the control device 37 should provide a force to the pin 35 to be in the second position, that is, the forces of the two are opposite, and the force of the control device 37 is adjustable, so that the pin 35 can be in the appropriate position as needed.

[0066] Alternatively, the control device 37 can be an electromagnetic control unit, for example, an electromagnet, and a magnetic attraction part is arranged at the lower end of the pin 35. When the electromagnet is powered on, the pin 35 is in the second position against the elastic force of the pin spring 36, and when the electromagnet is powered off, the pin 35 returns to the first position under the elastic force of the pin spring 36.

[0067] As a convertible embodiment, the pin driving part composed of the pin spring 36 and the control device 37 can be replaced by a linear mechanism such as a servo cylinder or a servo electric cylinder.

[0068] In this embodiment, the slider 31 is in the form of a T-shaped column, and the cylinder slider hole 212 is in the form of a corresponding stepped hole. The large end of the slider 31 is in airtight connection with the cylinder slider hole 212, and the small end can extend out of the cylinder slider hole 212 and be inserted into the clearance groove 231. The stepped surface of the slider 31 constitutes a limiting part cooperating with the pin 35.

[0069] The working process of the rolling rotor compressor of this embodiment will be described below.

[0070] As shown in Figure 6 , at the initial stage of starting the compressor, the control device 37 is closed, the pin 35 extends out of the cylinder pin hole 213, abuts against the stepped surface of the slider 31, and blocks the slider 31. At this time, the slider 31 is completely located in the cylinder slider hole 212, the vane 23 is pushed by the vane spring 24 to contact the roller 22, and the pump body further operates to compress gas to establish a pressure difference.

[0071] As shown in Figure 7 , at the normal operation stage of the compressor, first, the control device 37 is opened, the pin 35 returns to the cylinder pin hole 213, then the electronic valve 34 of the inlet pipe 33 is opened, the airtight cavity of the cylinder slider hole 212 is communicated with the upper part of the flash evaporator 4, and the medium-pressure gas in the upper part of the flash evaporator 4 enters the airtight cavity through the inlet pipe 33, as shown in Figure 8 , the A surface of the slider 31 is subjected to the medium-pressure gas force F 中 from the flash evaporator and the spring force F 弹 of the slider spring 32. At this time, the inner cavity of the shell 1 is filled with high-pressure gas, the cylinder spring hole 211 is communicated with the inner cavity of the shell 1 and is also high-pressure gas, the B and C surfaces of the slider 31 are communicated with the cylinder spring hole 211 and are subjected to the high-pressure gas force F 高 . By designing the parameters of the slider spring 32, F 高 <F 中 +F 弹 , the medium-pressure gas force F 中 and the spring force F 弹 of the slider spring 32 push the slider 31 to extend out of the cylinder slider hole 212 and enter the clearance groove 231 at the back of the vane 23, so as to release the pressing of the vane 23 by the vane spring 24. The vane spring 24 is in a static compression state, which achieves the purpose of reducing the compression times of the vane spring 24, and the high-pressure gas in the cylinder spring hole 211 pushes the vane 23 to continue contacting the roller 22 to establish a pressure difference.

[0072] When the compressor stops working, the electronic valve 34 is closed first. At this time, the medium-pressure gas in the upper part of the flash evaporator 4 cannot enter the airtight cavity, and the slider 31 is subjected to the high-pressure gas force F 高 and overcomes the spring force F 弹, then the control device 37 is closed, the pin 35 enters the cylinder block hole 212 to block the slider 31, the slide spring 24 re-contacts the back of the slide 23, and then the compressor stops. When the compressor starts again, the above-mentioned cycle is repeated.

[0073] It should be noted that, under the action of the high-pressure gas force F 高 , the gas in the air-tight cavity is discharged to the inlet pipe 33 during the process that the slider 31 retreats into the cylinder block hole 212, and the compressed air does not hinder the retreat of the slider 31. In order to improve the sensitivity of the response, a one-way exhaust valve can be arranged in the air-tight cavity and connected to the gas storage cavity. When the electronic valve 34 is closed, the exhaust valve is opened to timely discharge the gas in the air-tight cavity and form a pressure difference.

[0074] In addition, the above-mentioned process is based on the medium-pressure gas in the flash evaporator 4. When the inlet pipe 33 is communicated with the inner cavity of the shell 1, the working process is the same. When the electronic valve 34 is opened, the pressures at both ends of the slider 31 are the same, and the slider spring 32 pushes the slider 31 to extend out of the cylinder block hole 212. When the electronic valve 34 is closed, the exhaust valve is opened to make the right end of the slider 31 lose the pressure source. Under the action of the high-pressure gas force F 高 , the slider 31 overcomes the spring force F 弹 of the slider spring 32 and completely retreats into the cylinder block hole 212.

[0075] It can be seen that, in the rolling piston compressor of the embodiment, different pressure gases in the air conditioner are used to establish a controllable spring action mechanism, so that the slide spring pushes the slide to contact the roller during the starting stage of the compressor, the slide spring is separated from the slide after the compressor is stably operated, and the slide keeps contacting the roller under the action of the gas force, thereby achieving the purpose of reducing the compression times of the spring, improving the service life of the spring, and further improving the reliability of the compressor.

[0076] It should be noted that, in the rolling piston compressor of the present application, the driving mechanism for the reciprocating movement of the slider 31 along the cylinder block hole 212 can also be replaced by a linear mechanism such as a servo cylinder, a servo electric cylinder, and a servo hydraulic cylinder. During the initial starting stage of the compressor, the slider 31 is controlled to be located in the cylinder block hole 212. During the normal operation stage of the compressor, the slider 31 is controlled to extend out of the cylinder block hole 212. During the stop working stage of the compressor, the slider 31 is controlled to retreat into the cylinder block hole 212.

[0077] The embodiment also provides an air conditioning system, such as Figure 1As shown, the rolling rotor compressor comprises the shell 1, the pump body assembly 2, the flash evaporator 4, the condenser 6, the evaporator 7, the primary throttle valve 8, the secondary throttle valve 9 and the liquid reservoir 10, wherein the shell 1 is provided with the exhaust pipe 11, the exhaust pipe 11 is communicated with one end of the condenser 6, the other end of the condenser 6 is communicated with the inlet of the flash evaporator 4 through the primary throttle valve 8, the gas outlet of the flash evaporator 4 is communicated with the cylinder slide hole 212 of the pump body assembly 2 through the electronic valve 34 and the gas inlet pipe 33, the liquid outlet of the flash evaporator 4 is communicated with one end of the evaporator 7 through the secondary throttle valve 9, the other end of the evaporator 7 is communicated with the gas suction pipe 12 of the liquid reservoir 10, and the gas outlet of the liquid reservoir 10 is communicated with the cylinder gas suction port 214 of the pump body assembly 2.

[0078] The air conditioning system of the embodiment has improved working performance due to the rolling rotor compressor.

[0079] In the description of the present application, it should be understood that the terms "center", "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship generally based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and in the absence of contrary statements, these orientation words do not indicate and imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.

[0080] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances

[0081] In addition, it should be noted that the use of "first", "second" and the like to limit parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present application.

[0082] The above description is only the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A rolling piston compressor, characterized by, The utility model relates to a kind of pump, including: Shell (1); Pump body assembly (2) is arranged in the inner cavity of the shell (1), the pump body assembly (2) includes cylinder (21), roller (22) being arranged in the working chamber of the cylinder (21), and sliding vane (23) being arranged on the cylinder (21); The cylinder (21) is provided with cylinder spring hole (211), one end of the cylinder spring hole (211) is communicated with the inner cavity of the shell (1), and the other end is communicated with the working chamber of the cylinder (21), and sliding vane slot (23) for the reciprocating motion of the sliding vane (23) is arranged between the cylinder (21); The cylinder spring hole (211) is provided with sliding vane spring (24), one end of the sliding vane (23) is in abutment with the outer periphery of the roller (22), and the other end is drivingly connected with the sliding vane spring (24); Spring control assembly (3), including sliding block (31), the sliding block (31) is slidably arranged on the cylinder (21), the sliding block (31) has first working position for limiting the sliding vane spring (24) to prevent the reciprocating compression of the sliding vane spring (24), and second working position is separated from the sliding vane spring (24); The cylinder (21) is provided with cylinder sliding block hole (212), one end of the cylinder sliding block hole (212) is communicated with the cylinder spring hole (211), and the sliding block (31) is slidably arranged in the cylinder sliding block hole (212); The spring control assembly (3) further includes sliding block driving portion, and the sliding block driving portion is drivingly connected with the sliding block (31) to drive the sliding block (31) to be in first working position or second working position; The end of the sliding vane (23) drivingly connected with the sliding vane spring (24) is provided with a let-out slot (231), when the sliding block (31) is in first working position, one end of the sliding block (31) protrudes from the cylinder sliding block hole (212) and is inserted into the let-out slot (231) to limit the sliding vane spring (24); The other end of the cylinder sliding block hole (212) is closed, and the outer peripheral wall of the other end of the sliding block (31) is airtight connected with the inner peripheral wall of the cylinder sliding block hole (212) to form airtight cavity between the closed end of the cylinder sliding block hole (212) and the sliding block (31); The sliding block driving portion includes sliding block spring (32), intake pipe (33) and sliding block limiting portion; The sliding block spring (32) is arranged in the airtight cavity of the cylinder sliding block hole (212), and one end of the sliding block spring (32) is in abutment with the closed end of the cylinder sliding block hole (212), and the other end is in abutment with the sliding block (31); One end of the intake pipe (33) is communicated with the airtight cavity of the cylinder spring hole (211), and the other end is communicated with gas source, and the intake pipe (33) is provided with electronic valve (34) for controlling the on-off of the intake pipe (33); The sliding block limiting portion includes pin (35), the pin (35) is slidably arranged on the cylinder (21), and the pin (35) has first position for limiting the sliding block (31) to prevent the sliding of the sliding block (31), and second position is separated from the sliding block (31); A pad (38) is arranged at the right end of the cylinder slide hole (212) and is sealed and fixed with the cylinder (21) by welding or gluing.

2. The rolling piston compressor of claim 1, wherein: The gas source is the gas in the flash evaporator (4) arranged in the circulation loop of the rolling rotor compressor.

3. The rolling piston compressor of claim 1, wherein: The gas source is high-pressure gas in the cavity of the housing (1).

4. The rolling piston compressor of claim 1, wherein: The cylinder (21) is provided with a cylinder pin hole (213) in communication with the cylinder slide hole (212) at one end, and the pin (35) is slidably arranged in the cylinder pin hole (213). The slide block limiting portion further comprises a pin driving portion in driving connection with the pin (35) to drive the pin (35) to be in the first position or the second position. The slide block (31) is provided with a limiting portion, and when the pin (35) is in the first position, one end of the pin (35) extends out of the cylinder pin hole (213) and abuts against the limiting portion of the slide block (31).

5. The rolling piston compressor of claim 4, wherein: The pin driving portion comprises a pin spring (36) and a control device (37). The pin spring (36) is in driving connection with the pin (35) to drive the pin (35) to return to the first position or the second position. The control device (37) is in driving connection with the pin (35) to control the pin (35) to overcome the elastic force of the pin spring (36) to make the pin (35) be in the second position or the first position.

6. The rolling piston compressor of claim 5, wherein: The control device (37) is an electromagnetic control unit.

7. The rolling piston compressor of claim 4, wherein: The slide block (31) is in T-shaped column structure, and the cylinder slide hole (212) is in corresponding stepped hole structure. The large end of the slide block (31) is in airtight connection with the cylinder slide hole (212), the small end of the slide block (31) can extend out of the cylinder slide hole (212) and be inserted into the accommodation groove (231), and the stepped surface of the slide block (31) constitutes the limiting portion matched with the pin (35).

8. An air conditioning system comprising a compressor, characterized by: The compressor is the rolling rotor compressor according to any one of claims 1 to 7.

Images