CN219012866U - Cylinder, pump body assembly, compressor and air conditioning system - Google Patents

Abstract

The utility model provides a cylinder, a pump body assembly, a compressor and an air conditioning system, wherein the cylinder structure comprises: a cylinder including at least a receiving chamber for receiving a gas; the roller is arranged in the accommodating cavity and is used for being sleeved on the eccentric shaft section of the crankshaft so as to rotate along with the crankshaft; the sliding sheet is arranged in the accommodating cavity and is positioned at one side of the roller; in a direction approaching or separating from the rotation axis of the crankshaft under the drive of the roller; a first bulge and a second bulge are arranged at intervals on one side of the sliding vane far away from the crankshaft, wherein a plugging groove for plugging or separating with the pin assembly is arranged on the first end surface of one side of the sliding vane close to the first bulge; wherein, one side of keeping away from the roller of first bellying is provided with dodges the groove, dodges the groove and be less than the first bellying in the ascending height of the ascending degree of depth of the direction of motion of gleitbretter. The problem that a sliding vane in a variable-capacity cylinder of a variable-capacity compressor in the prior art is easily damaged is solved.

Description

Cylinder, pump body assembly, compressor and air conditioning system

Technical Field

The utility model relates to the technical field of compressors, in particular to a cylinder, a pump body assembly, a compressor and an air conditioning system.

Background

Currently, in order to adjust the capacity output according to the load demand of an air conditioning system, a variable frequency compressor is mostly used to adjust the capacity output by adjusting the frequency of the compressor, and when the load of the air conditioning system is too small, the frequency of the compressor needs to be continuously reduced.

However, due to the limitation of the minimum operating frequency of the compressor, the minimum amount of cold that the compressor can output may be limited; when the load of the air conditioning system is smaller than the minimum capacity which can be output by the lowest frequency operation of the compressor, the compressor is frequently started and stopped, so that the power consumption of the compressor is larger; meanwhile, when the frequency of the compressor is too low, the volumetric efficiency and the motor efficiency of the compressor are low, which results in low-frequency operation of the compressor with low energy efficiency. Accordingly, variable frequency variable capacity compressors are commonly employed in the art to address this problem.

The common capacity-changing mode of the capacity-changing compressor is to clamp the sliding vane by extending the head of the pin into the pin clamping groove of the capacity-changing sliding vane so as to reduce the displacement of the compressor, however, the capacity-changing compressor adopts a flattened large eccentric design while pursuing miniaturization and high efficiency, the eccentric of the capacity-changing cylinder is too large so as to cause the design space of the capacity-changing mechanism to be limited, the tail groove part of the sliding vane of the capacity-changing cylinder is easy to deform due to smaller rigidity, and therefore, the sliding vane tail groove of the cylinder adopts a raised structure to strengthen the rigidity, and the tail part of the corresponding sliding vane also adopts a corresponding concave tail groove structure to avoid the raised structure of the sliding vane tail groove of the cylinder. Because the positive-displacement sliding vane has the pin draw-in groove, in order to strengthen the rigidity of the sliding vane afterbody of positive-displacement sliding vane's pin draw-in groove one side, avoid the sliding vane afterbody to bump off, the protruding structure of the tail groove of cylinder and the recess of the afterbody of sliding vane have all adopted asymmetric structure, but still have the sliding vane afterbody to be bumped off the phenomenon.

In addition, the positive-displacement compressor still has the gleitbretter pin draw-in groove by the high-speed reciprocating motion of gleitbretter that the pin draw-in groove of the positive-displacement gleitbretter is stretched into to the pin draw-in groove of the positive-displacement gleitbretter and blocks this kind of switching mode of gleitbretter to carry out single double-cylinder switching for a long time and still has the gleitbretter pin draw-in groove to be ground out the turn-ups by the pin head, because the high-speed reciprocating motion of gleitbretter, the turn-ups easily grinds out darker mar with first flange terminal surface to lead to the consumption of compressor to rise, lead to the gleitbretter operation unstability to produce the problem of noise even.

Disclosure of Invention

The utility model mainly aims to provide a cylinder, a pump body assembly, a compressor and an air conditioning system, so as to solve the problem that a sliding sheet in a variable-capacity cylinder of a variable-capacity compressor in the prior art is easy to damage.

In order to achieve the above object, according to a first aspect of the present utility model, there is provided a cylinder structure comprising: a cylinder including at least a receiving chamber for receiving a gas; the roller is arranged in the accommodating cavity and is used for being sleeved on the eccentric shaft section of the crankshaft so as to rotate along with the crankshaft; the sliding sheet is arranged in the accommodating cavity and is positioned at one side of the roller; in a direction approaching or separating from the rotation axis of the crankshaft under the drive of the roller; a first bulge and a second bulge are arranged at intervals on one side of the sliding vane far away from the crankshaft, wherein a plugging groove for plugging or separating with the pin assembly is arranged on the first end surface of one side of the sliding vane close to the first bulge; wherein, one side of keeping away from the roller of first bellying is provided with dodges the groove, dodges the groove and be less than the first bellying in the ascending height of the ascending degree of depth of the direction of motion of gleitbretter.

Further, the height of the first protruding portion in the moving direction of the slide sheet is equal to the height of the second protruding portion in the moving direction of the slide sheet.

Further, a third protruding portion protruding towards the sliding sheet is arranged on the cavity wall surface of the accommodating cavity, and a first groove portion and a second groove portion which are used for being inserted into or separated from the first protruding portion and the second protruding portion are formed on two opposite sides of the third protruding portion respectively, wherein the depth of the first groove portion and the depth of the second groove portion are equal and are smaller than the height of the first protruding portion in the moving direction of the sliding sheet.

Further, the width of the first groove portion in the direction parallel to the rotational axis of the crankshaft is larger than the width of the second groove portion in the direction parallel to the rotational axis of the crankshaft.

Further, the plugging groove comprises a second groove section, wherein the first groove section is positioned on one side of the first groove section, which is close to the first end surface; the depth of the second groove section in a direction parallel to the rotational axis of the crankshaft is smaller than the depth of the first groove section in a direction parallel to the rotational axis of the crankshaft; the minimum cross-sectional area of the second groove section is larger than the maximum cross-sectional area of the first groove section; wherein the cross-sectional area of the second groove section gradually increases in a direction approaching the first end face.

Further, the first groove section is a cylindrical groove section, the second groove section is a conical groove section, the minimum diameter of the second groove section is larger than the maximum diameter of the first groove section, and the center line of the second groove section is positioned on one side, far away from the rotation axis of the crankshaft, of the center line of the first groove section.

Further, the width of the avoidance groove in the direction parallel to the rotation axis of the crankshaft is H, and the depth of the insertion groove in the direction parallel to the rotation axis of the crankshaft is H, wherein, -0.2H is less than or equal to (H-H) is less than or equal to 0.2H; and/or the depth of the inserting groove in the direction parallel to the rotation axis of the crankshaft is h, wherein the value range of h is 2mm to 6mm; and/or the depth of the avoiding groove in the moving direction of the sliding vane is V, wherein the value range of V is 0.1mm to 2mm; and/or the width of the avoidance groove in the direction parallel to the rotation axis of the crankshaft is H, wherein the value range of H is 2mm to 7mm; and/or the minimum distance L between the plugging groove and the avoiding groove, wherein the value range of L is 5mm to 10mm.

According to a second aspect of the present utility model, there is provided a pump body assembly comprising a first cylinder, the first cylinder being of the cylinder structure described above, the pump body assembly further comprising a crankshaft and a first flange, the crankshaft comprising a first main shaft section and a first eccentric shaft section connected together, the first flange being sleeved on the first main shaft section, a first cylinder liner being provided on the first eccentric shaft section, and an opening of a socket of the first cylinder being provided towards the first flange, the first flange being provided with a pin assembly for plugging in or separating from the socket.

Further, be provided with the mounting groove that is used for installing the pin subassembly on the first flange, the pin subassembly includes pin and elastic component, and the elastic component is located the one side of keeping away from first cylinder of pin, and one side of being close to first cylinder of mounting groove is provided with the cotter hole that is used for supplying the one end business turn over of pin.

Further, the pin includes first axis body and second axis body, and first axis body is located the one side that is close to first cylinder of second axis body, and the diameter of first axis body is less than the diameter of cotter hole, and the diameter of second axis body is greater than the diameter of cotter hole, is provided with elastic component holding tank on the second axis body and is located the opening of one side that keeps away from first axis body of elastic component holding tank, and the one end of elastic component passes through opening and elastic component holding tank's tank bottom butt, the other end of elastic component and the tank bottom butt of mounting groove.

Further, the minimum cross-sectional area of one side of the first end face, which is close to the inserting groove, is larger than the maximum cross-sectional area of the pin hole; and/or the pin hole is a round hole, and the minimum distance L between the inserting groove and the avoiding groove is larger than the maximum diameter D of the pin hole; and/or the elastic member is a compression spring.

Further, the crankshaft further comprises a second main shaft section and a second eccentric shaft section which are connected, and the second main shaft section is positioned on one side of the second eccentric shaft section, which is far away from the first eccentric shaft section; the pump body assembly further includes: the baffle is sleeved on the crankshaft and is positioned at one side of the first cylinder far away from the first flange; the second cylinder sleeve is arranged on the second eccentric shaft section and is positioned on one side of the partition plate away from the first cylinder; the second flange is sleeved on the second main shaft section; the cover plate is sleeved on the first main shaft section and is positioned on one side, far away from the first cylinder, of the first flange.

According to a third aspect of the present utility model, there is provided a compressor comprising: a housing; the pump body assembly is arranged in the shell and is the pump body assembly; the motor comprises a stator and a rotor positioned in the stator, and the rotor is sleeved on a crankshaft of the pump body assembly; wherein, be provided with on the casing: the exhaust port is communicated with the inside of the shell; the first air inlet is communicated with a first air suction port of a first cylinder of the pump body assembly; the second air inlet is communicated with a second air suction port of a second cylinder of the pump body assembly.

According to a fourth aspect of the present utility model, there is provided an air conditioning system comprising: the compressor is the compressor; the liquid separator comprises a liquid separator inlet, a liquid separator first outlet and a liquid separator second outlet, wherein the liquid separator first outlet is connected with a first air inlet of the compressor, and the liquid separator second outlet is connected with a second air inlet of the compressor; the inlet of the evaporator is connected with the exhaust port of the compressor; the inlet of the condenser is connected with the outlet of the evaporator, and the outlet of the condenser is connected with the inlet of the liquid separator; and a throttle valve provided in a communication line between the outlet of the evaporator and the inlet of the condenser.

Further, the air conditioning system includes: the first end of the first switch valve is connected with the exhaust port of the compressor, and the second end of the first switch valve is connected with the first air inlet of the compressor; and the first end of the second switch valve is connected with a communication pipeline between the outlet of the condenser and the inlet of the liquid separator, and the second end of the second switch valve is connected with a communication pipeline between the first switch valve and the first air inlet of the compressor.

By applying the technical scheme of the utility model, the cylinder comprises: a cylinder including a receiving chamber for receiving a gas; the roller is arranged in the accommodating cavity and is used for being sleeved on the eccentric shaft section of the crankshaft so as to rotate along with the crankshaft; the sliding sheet is arranged in the accommodating cavity and is positioned at one side of the roller; in a direction approaching or separating from the rotation axis of the crankshaft under the drive of the roller; a first bulge and a second bulge are arranged at intervals on one side of the sliding vane far away from the crankshaft, wherein a plugging groove for plugging or separating with the pin assembly is arranged on the first end surface of one side of the sliding vane close to the first bulge; wherein, one side of keeping away from the roller of first bellying is provided with dodges the groove, dodges the groove and be less than the first bellying in the ascending height of the ascending degree of depth of the direction of motion of gleitbretter. Therefore, the utility model solves the problem that the end face of the first flange is easy to scratch due to the flanging of the pin clamping groove of the variable-capacity slide sheet, avoids the phenomenon that the tail part of the variable-capacity slide sheet collides with the edge of the pin hole due to suspension inclination at the pin hole in the reciprocating motion process, avoids the collision point at the lower end of the tail part of the slide sheet and the pin clamping groove when the tail part of the variable-capacity slide sheet collides with the tail groove of the cylinder slide sheet, avoids the problem that the tail part of the variable-capacity slide sheet and the tail groove of the cylinder slide sheet are easy to cause fatigue fracture due to repeated collision, solves the problem that the slide sheet in the variable-capacity cylinder of the variable-capacity compressor in the prior art is easy to be damaged, improves the reliability of the tail part of the variable-capacity slide sheet, and ensures that the variable-capacity compressor can keep a high-efficiency stable running state for a long time.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic structural view of an embodiment of an air conditioning system of the present utility model;

FIG. 2 is a schematic view showing a part of a pump body assembly of a compressor of the air conditioning system shown in FIG. 1;

FIG. 3 shows an enlarged partial schematic view at A in FIG. 2;

FIG. 4 shows a schematic view of the structure of the pin of the pump body assembly shown in FIG. 2;

FIG. 5 shows a schematic view of the structure of the slide of the cylinder of the pump body assembly shown in FIG. 2;

fig. 6 shows a partially enlarged schematic view at B in fig. 5.

Wherein the above figures include the following reference numerals:

1. a cylinder; 2. a receiving chamber; 3. a roller; 4. a crankshaft; 41. a first spindle section; 42. a first eccentric shaft section; 43. a second spindle section; 44. a second eccentric shaft section; 5. a sliding sheet; 51. a first boss; 52. a second protruding portion; 53. a plug-in groove; 531. a first trough section; 532. a second trough section; 54. an avoidance groove; 6. a pin assembly; 7. a third boss; 71. a first groove portion; 72. a second groove portion; 8. a first cylinder; 9. a first flange; 11. a mounting groove; 12. a pin; 121. a first shaft body; 122. a second shaft body; 123. an elastic member accommodating groove; 13. an elastic member; 14. a pin hole; 15. a partition plate; 16. a second cylinder; 17. a second flange; 18. a cover plate; 19. a housing; 191. an exhaust port; 192. a first air inlet; 193. a second air inlet; 20. a pump body assembly; 21. a motor; 211. a stator; 212. a rotor; 22. a compressor; 23. a knockout; 231. a knockout inlet; 232. a first outlet of the knockout; 233. a second outlet of the knockout; 24. an evaporator; 25. a condenser; 26. a throttle valve; 27. a first switching valve; 28. and a second switching valve.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

The utility model is described in detail below with reference to the attached drawings and in connection with embodiments:

as shown in fig. 1 to 6, the present utility model provides a cylinder including: a cylinder 1 including a housing chamber 2 for housing a gas; a roller 3 arranged in the accommodating cavity 2 and used for being sleeved on an eccentric shaft section of the crankshaft 4 so as to rotate along with the crankshaft 4; a sliding sheet 5 arranged in the accommodating cavity 2 and positioned at one side of the roller 3; to move in a direction approaching or separating from the rotation axis of the crankshaft 4 under the driving of the roller 3; a first protruding part 51 and a second protruding part 52 are arranged at intervals on one side of the sliding sheet 5 far away from the crankshaft 4, wherein a plugging groove 53 for plugging or separating with the pin assembly 6 is arranged on a first end surface of one side of the sliding sheet 5 close to the first protruding part 51; wherein, the side of the first protruding part 51 far away from the roller 3 is provided with a dodging groove 54, and the depth of the dodging groove 54 in the moving direction of the sliding vane 5 is smaller than the height of the first protruding part 51 in the moving direction of the sliding vane 5.

Therefore, the utility model solves the problem that the end face of the first flange is easy to scratch due to the flanging of the pin clamping groove of the variable-capacity slide sheet, avoids the phenomenon that the tail part of the variable-capacity slide sheet collides with the edge of the pin hole due to suspension inclination at the pin hole in the reciprocating motion process, avoids the collision point at the lower end of the tail part of the slide sheet and the pin clamping groove when the tail part of the variable-capacity slide sheet collides with the tail groove of the cylinder slide sheet, avoids the problem that the tail part of the variable-capacity slide sheet and the tail groove of the cylinder slide sheet are easy to cause fatigue fracture due to repeated collision, solves the problem that the slide sheet in the variable-capacity cylinder of the variable-capacity compressor in the prior art is easy to be damaged, improves the reliability of the tail part of the variable-capacity slide sheet, and ensures that the variable-capacity compressor can keep a high-efficiency stable running state for a long time.

Specifically, the side of the sliding vane 5 close to the roller 3 is the head of the sliding vane 5, the side of the sliding vane 5 far away from the roller 3 is the tail of the sliding vane 5, and the height of the first protruding portion 51 in the moving direction of the sliding vane 5 is equal to the height of the second protruding portion 52 in the moving direction of the sliding vane 5.

As shown in fig. 2, a third protrusion 7 protruding toward the slide 5 is provided on the cavity wall surface of the accommodating cavity 2, and a first groove portion 71 and a second groove portion 72 for being inserted into or separated from the first protrusion 51 and the second protrusion 52 are formed on opposite sides of the third protrusion 7, respectively, wherein the depth of the first groove portion 71 and the second groove portion 72 are equal and both smaller than the height of the first protrusion 51 in the moving direction of the slide 5.

Preferably, the width of the first groove portion 71 in the direction parallel to the rotation axis of the crankshaft 4 is larger than the width of the second groove portion 72 in the direction parallel to the rotation axis of the crankshaft 4, and the width of the first protrusion portion 51 in the direction parallel to the rotation axis of the crankshaft 4 is larger than the width of the second protrusion portion 52 in the direction parallel to the rotation axis of the crankshaft 4, so as to reinforce the rigidity of the first protrusion portion 51, thereby preventing the tail portion of the slide 5 from being broken.

As shown in fig. 6, the mating groove 53 includes a second groove section 532 in which the first groove section 531 is located on a side of the first groove section 531 near the first end surface; the depth of the second groove section 532 in the direction parallel to the rotational axis of the crankshaft 4 is smaller than the depth of the first groove section 531 in the direction parallel to the rotational axis of the crankshaft 4; the minimum cross-sectional area of the second slot segment 532 is greater than the maximum cross-sectional area of the first slot segment 531; wherein the cross-sectional area of the second slot segment 532 increases gradually in a direction approaching the first end face.

Specifically, the first groove section 531 is the cylinder groove section, the second groove section 532 is the circular cone groove section, the minimum diameter of second groove section 532 is greater than the maximum diameter of first groove section 531, the central line of second groove section 532 is located the one side of the axis of rotation of crankshaft 4 that keeps away from of the central line of first groove section 531, in order to avoid the turn-ups that the edge of grafting groove 53 ground out to contact with the up end of first flange 9, the problem that first flange terminal surface is ground out the mar easily has been solved, the reliability of the positive displacement machine of compressor has been improved, make the positive displacement machine can keep high-efficient stable operation for a long time.

As shown in fig. 6, the width of the avoiding groove 54 in the direction parallel to the rotation axis of the crankshaft 4 is H, the depth of the inserting groove 53 in the direction parallel to the rotation axis of the crankshaft 4 is H, wherein, -0.2H is less than or equal to (H-H) is less than or equal to 0.2H, so that a large suspension impact force arm is avoided, the problem that fatigue fracture is easily generated between the tail part of the variable-capacity slide and the tail groove of the cylinder slide due to repeated impact is solved, and the reliability of the tail part of the variable-capacity slide is improved; and/or the depth of the insertion groove 53 in the direction parallel to the rotation axis of the crankshaft 4 is h, wherein the value of h ranges from 2mm to 6mm; and/or the depth of the avoiding groove 54 in the moving direction of the sliding vane 5 is V, wherein the value range of V is 0.1mm to 2mm; and/or the width of the escape groove 54 in the direction parallel to the rotational axis of the crankshaft 4 is H, wherein the value of H ranges from 2mm to 7mm; and/or a minimum distance L between the plugging groove 53 and the avoiding groove 54, wherein the value of L ranges from 5mm to 10mm.

As shown in fig. 1, the utility model provides a pump body assembly, which comprises a first air cylinder 8, wherein the first air cylinder 8 is of the air cylinder structure, the pump body assembly further comprises a crankshaft 4 and a first flange 9, the crankshaft 4 comprises a first main shaft section 41 and a first eccentric shaft section 42 which are connected, the first flange 9 is sleeved on the first main shaft section 41, the first air cylinder 8 is sleeved on the first eccentric shaft section 42, an opening of a plugging groove 53 of the first air cylinder 8 is arranged towards the first flange 9, and a pin assembly 6 for plugging or separating from the plugging groove 53 is arranged on the first flange 9.

As shown in fig. 3, the first flange 9 is provided with a mounting groove 11 for mounting the pin assembly 6, the pin assembly 6 includes a pin 12 and an elastic member 13, the elastic member 13 is located on one side of the pin 12 away from the first cylinder 8, and one side of the mounting groove 11 near the first cylinder 8 is provided with a pin hole 14 for allowing one end of the pin 12 to enter and exit.

As shown in fig. 4, the pin 12 includes a first shaft body 121 and a second shaft body 122, the first shaft body 121 is located on one side of the second shaft body 122 close to the first cylinder 8, the diameter of the first shaft body 121 is smaller than the diameter of the pin hole 14, the diameter of the second shaft body 122 is larger than the diameter of the pin hole 14, an elastic member accommodating groove 123 and an opening portion located on one side of the elastic member accommodating groove 123 far away from the first shaft body 121 are provided on the second shaft body 122, one end of the elastic member 13 is abutted with the bottom surface of the elastic member accommodating groove 123 through the opening portion, and the other end of the elastic member 13 is abutted with the bottom surface of the mounting groove 11.

Preferably, the minimum cross-sectional area of the side of the first end face of the insertion groove 53 adjacent to is larger than the maximum cross-sectional area of the pin hole 14; and/or the pin hole 14 is a round hole, the minimum distance L between the inserting groove 53 and the avoiding groove 54 is larger than the maximum diameter D of the pin hole 14, so that the tail part of the variable-capacity sliding sheet is prevented from suspending and inclining at the pin hole to strike the edge of the pin hole in the reciprocating motion process, and the reliability of the variable-capacity mechanism is improved; and/or the elastic member 13 is a compression spring.

Specifically, the crankshaft 4 further comprises a second main shaft section 43 and a second eccentric shaft section 44 connected, the second main shaft section 43 being located on a side of the second eccentric shaft section 44 remote from the first eccentric shaft section 42; the pump body assembly further includes: the baffle 15 is sleeved on the crankshaft 4 and is positioned at one side of the first cylinder 8 far away from the first flange 9; the second air cylinder 16 is sleeved on the second eccentric shaft section 44 and is positioned on one side of the partition plate 15 away from the first air cylinder 8; the second flange 17, the second flange 17 is set up on the second main shaft section 43; the cover plate 18, the cover plate 18 is sleeved on the first main shaft section 41 and is positioned on one side of the first flange 9 far away from the first air cylinder 8.

As shown in fig. 1, the present utility model provides a compressor including: a housing 19; the pump body assembly 20, the pump body assembly 20 is arranged in the shell 19, and the pump body assembly 20 is the pump body assembly; the motor 21, the motor 21 includes the stator 211 and locating at the rotor 212 in the stator 211, the rotor 212 is set up on the crankshaft 4 of the pump body assembly 20; wherein, the shell 19 is provided with: an exhaust port 191, the exhaust port 191 communicating with the inside of the housing 19; a first air inlet 192, the first air inlet 192 communicating with a first air suction port of a first cylinder 8 of the pump body assembly 20; the second intake port 193, the second intake port 193 communicating with the second intake port of the second cylinder 16 of the pump body assembly 20.

The head of the sliding vane 5 abuts against the outer peripheral surface of the roller 3 to separate the volume cavity in the first cylinder 8 into a high-pressure cavity and a low-pressure cavity, so as to realize the compression function of the compressor, the cavity of the tail of the sliding vane 5 of the first cylinder 8 (i.e. the variable-volume cylinder) in the compressor is in a sealed state and is not communicated with high-pressure gas in the shell 19, and the first air inlet 192 is communicated with the cavity of the tail of the sliding vane 5.

The housing 19 of the compressor 22 of the present utility model includes a main housing and upper and lower covers at upper and lower ends of the main housing, respectively, to constitute a closed chamber.

As shown in fig. 1, the present utility model provides an air conditioning system comprising: a compressor 22, the compressor 22 being the compressor described above; a dispenser 23, the dispenser 23 comprising a dispenser inlet 231, a dispenser first outlet 232 and a dispenser second outlet 233, the dispenser first outlet 232 being connected to the first air inlet 192 of the compressor 22, the dispenser second outlet 233 being connected to the second air inlet 193 of the compressor 22; an evaporator 24, an inlet of the evaporator 24 is connected to a discharge port 191 of the compressor 22; a condenser 25, an inlet of the condenser 25 is connected with an outlet of the evaporator 24, and an outlet of the condenser 25 is connected with a knockout inlet 231; a throttle valve 26 provided on a communication line between the outlet of the evaporator 24 and the inlet of the condenser 25.

Specifically, the air conditioning system of the present utility model further includes: a first switching valve 27, a first end of the first switching valve 27 is connected to a discharge port 191 of the compressor 22, and a second end of the first switching valve 27 is connected to a first intake port 192 of the compressor 22; and a second switching valve 28, a first end of the second switching valve 28 is connected to a communication line between an outlet of the condenser 25 and the inlet 231 of the dispenser, and a second end of the second switching valve 28 is connected to a communication line between the first switching valve 27 and the first inlet 192 of the compressor 22.

The first switch valve 27 is a high-pressure electromagnetic valve, and is used for controlling on-off between the exhaust port 191 and a cavity where the tail part of the sliding vane 5 is located; the second switch valve 28 is a low-pressure electromagnetic valve, so as to control the on-off between the first air inlet 192 and the cavity where the tail part of the sliding vane 5 is located.

During the operation of the compressor, if the first switch valve 27 is opened and the second switch valve 28 is closed, the pin 12 is pushed downward by the high-pressure exhaust gas to be separated from the slide 5, and the compressor is operated in a double-cylinder mode; if the second switching valve 28 is opened and the first switching valve 27 is closed, the pin 12 is pushed up by the pin spring to be caught in the insertion groove 53, so that the slide 5 stops working, and the compressor operates in a single cylinder mode.

The utility model is not only suitable for the double-rotor variable-capacity compressor, but also suitable for the multi-rotor variable-capacity compressor.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

the cylinder of the present utility model includes: a cylinder 1 including a housing chamber 2 for housing a gas; a roller 3 arranged in the accommodating cavity 2 and used for being sleeved on an eccentric shaft section of the crankshaft 4 so as to rotate along with the crankshaft 4; a sliding sheet 5 arranged in the accommodating cavity 2 and positioned at one side of the roller 3; to move in a direction approaching or separating from the rotation axis of the crankshaft 4 under the driving of the roller 3; a first protruding part 51 and a second protruding part 52 are arranged at intervals on one side of the sliding sheet 5 far away from the crankshaft 4, wherein a plugging groove 53 for plugging or separating with the pin assembly 6 is arranged on a first end surface of one side of the sliding sheet 5 close to the first protruding part 51; wherein, the side of the first protruding part 51 far away from the roller 3 is provided with a dodging groove 54, and the depth of the dodging groove 54 in the moving direction of the sliding vane 5 is smaller than the height of the first protruding part 51 in the moving direction of the sliding vane 5. Therefore, the utility model solves the problem that the end face of the first flange is easy to scratch due to the flanging of the pin clamping groove of the variable-capacity slide sheet, avoids the phenomenon that the tail part of the variable-capacity slide sheet collides with the edge of the pin hole due to suspension inclination at the pin hole in the reciprocating motion process, avoids the collision point at the lower end of the tail part of the slide sheet and the pin clamping groove when the tail part of the variable-capacity slide sheet collides with the tail groove of the cylinder slide sheet, avoids the problem that the tail part of the variable-capacity slide sheet and the tail groove of the cylinder slide sheet are easy to cause fatigue fracture due to repeated collision, solves the problem that the slide sheet in the variable-capacity cylinder of the variable-capacity compressor in the prior art is easy to be damaged, improves the reliability of the tail part of the variable-capacity slide sheet, and ensures that the variable-capacity compressor can keep a high-efficiency stable running state for a long time.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (15)

1. A cylinder structure, characterized by comprising:

a cylinder (1) comprising at least a housing chamber (2) for housing a gas;

the roller (3) is arranged in the accommodating cavity (2) and is used for being sleeved on an eccentric shaft section of the crankshaft (4) so as to rotate along with the crankshaft (4);

a sliding sheet (5) arranged in the accommodating cavity (2) and positioned at one side of the roller (3); to move in a direction approaching or separating from the rotation axis of the crankshaft (4) under the drive of the roller (3); a first protruding part (51) and a second protruding part (52) are arranged at intervals on one side of the sliding sheet (5) far away from the crankshaft (4), wherein a plugging groove (53) for plugging or separating with the pin assembly (6) is arranged on a first end surface of one side of the sliding sheet (5) close to the first protruding part (51);

the sliding vane device comprises a sliding vane (5), wherein one side, far away from a roller (3), of a first protruding part (51) is provided with an avoidance groove (54), and the depth of the avoidance groove (54) in the moving direction of the sliding vane (5) is smaller than the height of the first protruding part (51) in the moving direction of the sliding vane (5).

2. The cylinder structure according to claim 1, characterized in that the height of the first boss (51) in the direction of movement of the slide (5) is equal to the height of the second boss (52) in the direction of movement of the slide (5).

3. The cylinder structure according to claim 1, characterized in that a third protrusion (7) protruding toward the slide sheet (5) is provided on a cavity wall surface of the accommodation cavity (2), and first and second groove portions (71, 72) for being respectively inserted into and separated from the first and second protrusion portions (51, 52) are formed on opposite sides of the third protrusion (7), wherein the first and second groove portions (71, 72) have equal depths and are each smaller than a height of the first protrusion portion (51) in a moving direction of the slide sheet (5).

4. A cylinder structure according to claim 3, characterized in that the width of the first groove portion (71) in a direction parallel to the rotational axis of the crankshaft (4) is larger than the width of the second groove portion (72) in a direction parallel to the rotational axis of the crankshaft (4).

5. The cylinder structure according to claim 1, characterized in that the plug-in groove (53) comprises a second groove section (532) with a first groove section (531) located at a side of the first groove section (531) close to the first end face;

the depth of the second groove section (532) in a direction parallel to the rotational axis of the crankshaft (4) is smaller than the depth of the first groove section (531) in a direction parallel to the rotational axis of the crankshaft (4);

-the minimum cross-sectional area of the second trough section (532) is larger than the maximum cross-sectional area of the first trough section (531);

wherein the cross-sectional area of the second groove section (532) gradually increases in a direction approaching the first end face.

6. The cylinder structure according to claim 5, characterized in that the first groove section (531) is a cylindrical groove section, the second groove section (532) is a conical groove section, the smallest diameter of the second groove section (532) is larger than the largest diameter of the first groove section (531), and the center line of the second groove section (532) is located on the side of the center line of the first groove section (531) away from the rotational axis of the crankshaft (4).

7. The cylinder structure according to claim 1, characterized in that,

the width of the avoidance groove (54) in the direction parallel to the rotation axis of the crankshaft (4) is H, the depth of the insertion groove (53) in the direction parallel to the rotation axis of the crankshaft (4) is H, wherein, -0.2H is less than or equal to (H-H) is less than or equal to 0.2H; and/or

The depth of the inserting groove (53) in the direction parallel to the rotation axis of the crankshaft (4) is h, wherein the value range of h is 2mm to 6mm; and/or

The depth of the avoiding groove (54) in the moving direction of the sliding sheet (5) is V, wherein the value range of V is 0.1mm to 2mm; and/or

The width of the avoidance groove (54) in the direction parallel to the rotation axis of the crankshaft (4) is H, wherein the value range of H is 2mm to 7mm; and/or

The minimum distance L between the inserting groove (53) and the avoiding groove (54) is 5-10 mm.

8. The utility model provides a pump body subassembly, its characterized in that includes first cylinder (8), first cylinder (8) are the cylinder structure of any one of claims 1 to 7, pump body subassembly still includes bent axle (4) and first flange (9), bent axle (4) are including first main shaft section (41) and first eccentric shaft section (42) that are connected, first flange (9) cover is established on first main shaft section (41), first cylinder (8) cover is established on first eccentric shaft section (42), just the opening of grafting groove (53) of first cylinder (8) is towards first flange (9) sets up, be provided with on first flange (9) be used for with grafting or separation peg component (6) of grafting groove (53).

9. Pump body assembly according to claim 8, characterized in that the first flange (9) is provided with a mounting groove (11) for mounting the pin assembly (6), the pin assembly (6) comprises a pin (12) and an elastic member (13), the elastic member (13) is located at one side of the pin (12) away from the first cylinder (8), and one side of the mounting groove (11) close to the first cylinder (8) is provided with a pin hole (14) for the entry and exit of one end of the pin (12).

10. Pump body assembly according to claim 9, characterized in that the pin (12) comprises a first shaft body (121) and a second shaft body (122), the first shaft body (121) is located on one side of the second shaft body (122) close to the first cylinder (8), the diameter of the first shaft body (121) is smaller than the diameter of the pin hole (14), the diameter of the second shaft body (122) is larger than the diameter of the pin hole (14), an elastic element accommodating groove (123) and an opening part located on one side of the elastic element accommodating groove (123) away from the first shaft body (121) are arranged on the second shaft body (122), one end of the elastic element (13) is abutted with the groove bottom surface of the elastic element accommodating groove (123) through the opening part, and the other end of the elastic element (13) is abutted with the groove bottom surface of the mounting groove (11).

11. The pump body assembly of claim 9, wherein the pump body assembly comprises,

the minimum cross-sectional area of the side, close to the first end surface, of the inserting groove (53) is larger than the maximum cross-sectional area of the pin hole (14); and/or

The pin hole (14) is a round hole, and the minimum distance L between the inserting groove (53) and the avoiding groove (54) is larger than the maximum diameter D of the pin hole (14); and/or

The elastic piece (13) is a compression spring.

12. Pump body assembly according to claim 8, characterized in that the crankshaft (4) further comprises a second main shaft section (43) and a second eccentric shaft section (44) connected, the second main shaft section (43) being located on the side of the second eccentric shaft section (44) remote from the first eccentric shaft section (42); the pump body assembly further includes:

the baffle plate (15) is sleeved on the crankshaft (4) and is positioned at one side of the first cylinder (8) far away from the first flange (9);

the second air cylinder (16) is sleeved on the second eccentric shaft section (44) and is positioned on one side of the partition plate (15) away from the first air cylinder (8);

a second flange (17), wherein the second flange (17) is sleeved on the second main shaft section (43);

the cover plate (18) is sleeved on the first main shaft section (41) and is positioned on one side, far away from the first cylinder (8), of the first flange (9).

13. A compressor, comprising:

a housing (19);

-a pump body assembly (20), the pump body assembly (20) being arranged within the housing (19), the pump body assembly (20) being as claimed in any one of claims 8 to 12;

the motor (21), the said motor (21) includes the stator (211) and locates at the rotor (212) in the said stator (211), the said rotor (212) is set up on the crankshaft (4) of the said pump body assembly (20);

wherein, be provided with on the casing (19):

an exhaust port (191), the exhaust port (191) communicating with the interior of the housing (19);

a first air inlet (192), the first air inlet (192) being in communication with a first air suction opening of a first cylinder (8) of the pump body assembly (20);

and a second air inlet (193), wherein the second air inlet (193) is communicated with a second air suction port of a second air cylinder (16) of the pump body assembly (20).

14. An air conditioning system, comprising:

-a compressor (22), the compressor (22) being the compressor of claim 13;

a dispenser (23), the dispenser (23) comprising a dispenser inlet (231), a dispenser first outlet (232) and a dispenser second outlet (233), the dispenser first outlet (232) being connected with the first air inlet (192) of the compressor (22), the dispenser second outlet (233) being connected with the second air inlet (193) of the compressor (22);

an evaporator (24), an inlet of the evaporator (24) being connected to a discharge port (191) of the compressor (22);

a condenser (25), an inlet of the condenser (25) being connected to an outlet of the evaporator (24), an outlet of the condenser (25) being connected to the knockout inlet (231);

a throttle valve (26) provided on a communication line between the outlet of the evaporator (24) and the inlet of the condenser (25).

15. The air conditioning system of claim 14, wherein the air conditioning system comprises:

a first on-off valve (27), a first end of the first on-off valve (27) being connected to the exhaust port (191) of the compressor (22), a second end of the first on-off valve (27) being connected to a first intake port (192) of the compressor (22);

and a second switch valve (28), wherein a first end of the second switch valve (28) is connected with a communication pipeline between an outlet of the condenser (25) and an inlet (231) of the liquid separator, and a second end of the second switch valve (28) is connected with a communication pipeline between the first switch valve (27) and a first air inlet (192) of the compressor (22).

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