Pump body assembly, compressor and air conditioning equipment

Abstract

The utility model provides a pump body assembly, a compressor and air conditioning equipment. The pump body assembly comprises an air cylinder component and a sliding piece component. The cylinder part comprises a cylinder body; the sliding piece component comprises a first sliding piece and a second sliding piece which are arranged on the cylinder body in the rotating direction of the roller in a spaced mode, and the internal space of the cylinder body is divided into a first working cavity and a second working cavity. The second sliding piece is located between the downstream end of the first working cavity and the upstream end of the second working cavity in the rotating direction of the roller, and the second sliding piece is provided with an air supplementing channel used for communicating the first working cavity with the second working cavity. According to the technical scheme, the two working cavities capable of independently sucking air and exhausting air are formed in the cylinder body, and the air supplementing channels capable of being communicated with each other are arranged between the two working cavities, so that in the air sucking process, part of refrigerants in one working cavity can be supplemented into the other working cavity through the air supplementing channels; the air supply amount is increased to the maximum extent, and the volume utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a pump body component, a compressor and air-conditioning equipment. Background Art

[0002] With the continuous demand for cost reduction and energy efficiency upgrades in air conditioning systems, new technologies, such as parallel compression technology, are being introduced in air conditioning systems and compressors. Parallel compression technology utilizes a parallel compression cycle. Both the parallel compression cycle and the conventional two-stage compression and air supply cycle can increase the system's subcooling, thereby improving cycle efficiency. Compared to the two-stage compression and air supply cycle, the parallel compression cycle reduces internal compressor losses, resulting in higher efficiency.

[0003] Currently, some compressor pumps utilize a cylinder structure that divides the internal space into two, forming two volume chambers to achieve parallel compression. However, to ensure compression reliability, the two volume chambers are typically designed with one larger and one smaller. This results in a limited amount of air that can be accommodated by the smaller volume chamber during the parallel compression cycle, limiting the degree of improvement in system efficiency. Utility Model Content

[0004] In order to solve the problem in existing pump body assemblies that the air supply volume of the small volume chamber is limited, which limits the degree of improvement of system efficiency, the utility model proposes a pump body assembly, a compressor and an air-conditioning device.

[0005] In a first aspect, the present invention provides a pump assembly comprising:

[0006] a cylinder component comprising a cylinder body and a roller eccentrically disposed in the cylinder body; and

[0007] a sliding plate component, comprising at least a first sliding plate and a second sliding plate spaced apart on the cylinder along the rotation direction of the roller, wherein first ends of the first sliding plate and the second sliding plate abut against the roller to separate the interior space of the cylinder into a first working chamber and a second working chamber;

[0008] In which, the cylinder body is respectively constructed with air passages corresponding to the first working chamber and the second working chamber, the second slide is located between the downstream end of the first working chamber and the upstream end of the second working chamber in the rotation direction of the roller, and the second slide is provided with an air supply channel for connecting the first working chamber and the second working chamber.

[0009] In one embodiment, the cylinder body is provided with a first mounting groove and a second mounting groove extending in a radial direction, and the first sliding plate and the second sliding plate are respectively mounted in the first mounting groove and the second mounting groove;

[0010] The second sliding piece is configured to move radially relative to the second mounting groove as the roller rotates eccentrically, so that the air supply channel enters the cylinder body or retreats into the second mounting groove.

[0011] In one embodiment, an included angle α is formed between the first sliding plate and the second sliding plate, and a rotation angle θ is formed between the position where the outer peripheral surface of the roller contacts the inner wall of the cylinder and the rotation starting position of the first sliding plate when the roller rotates;

[0012] The angle α, the rotation angle θ, and the distance between the position of the gas supplement channel on the second slide and the first end of the second slide satisfy:

[0013] When 0°<θ≤180°-α, the air supply channel can gradually enter the cylinder body along with the second sliding vane moving radially inward;

[0014] When 180°-α<θ<180°-α / 2, the air supply channel can gradually exit from the cylinder body along with the second sliding vane moving radially outward, but does not completely exit from the cylinder body;

[0015] When θ=180°-α / 2, the air supply channel can just completely exit the cylinder body along with the second sliding vane moving radially outward.

[0016] In one embodiment, the angle α between the first sliding plate and the second sliding plate ranges from 60° to 120°.

[0017] In one embodiment, the volume of the first working chamber is greater than the volume of the second working chamber.

[0018] In one embodiment, the thickness of the first sliding sheet is not less than the thickness of the second sliding sheet.

[0019] In one embodiment, the suction pressure of the first working chamber is lower than the suction pressure of the second working chamber, and the exhaust pressures of the first working chamber and the second working chamber are the same.

[0020] In one embodiment, the air passage includes an air intake passage and an air exhaust passage, and the air intake passage and the air exhaust passage are respectively connected to an upstream end and a downstream end of the corresponding working chamber.

[0021] In one embodiment, the air supply channel is configured as a through hole penetrating the second sliding piece; the through hole is configured as a circular hole and there are multiple through holes, and the multiple through holes are evenly distributed along the width direction of the second sliding piece; or

[0022] The through hole is configured as a strip-shaped hole and the number of the through hole is at least one. The strip-shaped hole extends along the width direction of the second sliding sheet.

[0023] In a second aspect, the present invention proposes a compressor, which includes the above-mentioned pump body assembly and thus has all the technical effects it possesses.

[0024] On the third aspect, the utility model proposes an air-conditioning device, and its above-mentioned compressor further has all the technical effects it possesses.

[0025] The above technical features can be combined in various suitable ways or replaced by equivalent technical features, as long as the purpose of the present invention can be achieved.

[0026] The pump assembly, compressor and air-conditioning equipment provided by the present invention have at least the following beneficial effects compared with the prior art:

[0027] The utility model provides a pump body assembly, a compressor and an air-conditioning device, by constructing two working chambers inside the cylinder body that can independently inhale and exhaust air, and providing an air supply channel that can communicate with each other between the two working chambers. During the air intake process, part of the refrigerant in one working chamber can be supplied to the other working chamber through the air supply channel, thereby realizing air supply in the cylinder, maximizing the air supply volume, and improving the volume utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein:

[0029] Figure 1 A cross-sectional view of the pump assembly of the present invention is shown;

[0030] Figure 2 Shows Figure 1 Schematic diagram of the roller after it rotates through the first angle;

[0031] Figure 3 Shows Figure 2 Schematic diagram of the roller after it continues to rotate through the second angle;

[0032] Figure 4 Shows Figure 3 Schematic diagram of the roller in FIG2 after it continues to rotate through the third angle (the state where the volume of the second working chamber reaches the maximum);

[0033] Figure 5 A schematic diagram showing a second sliding vane of the pump assembly of the present invention;

[0034] Figure 6 A schematic structural diagram showing one embodiment of the air supply channel on the second slide of the present invention;

[0035] Figure 7A schematic structural diagram showing another embodiment of the air supply channel on the second slide of the present invention;

[0036] Figure 8 The diagram shows the system circulation principle of the air-conditioning equipment of the present invention when it operates in parallel compression.

[0037] In the drawings, like reference numerals are used for like parts, but the drawings are not necessarily true to scale.

[0038] Reference numerals:

[0039] 1-cylinder component, 11-cylinder body, 111-first mounting groove, 112-second mounting groove, 12-roller, 2-slide component, 21-first slide, 22-second slide, 221-air supply channel, 3-first working chamber, 4-second working chamber, 5-intake channel, 6-exhaust channel. DETAILED DESCRIPTION

[0040] The present invention will be further described below with reference to the accompanying drawings.

[0041] Example 1

[0042] An embodiment of the present utility model provides a pump body assembly, which includes a cylinder component 1 and a slide component 2; the cylinder component 1 includes a cylinder body 11 and a roller 12 eccentrically arranged in the cylinder body 11; the slide component 2 includes at least a first slide 21 and a second slide 22 spaced apart on the cylinder body 11 along the rotation direction of the roller 12, and the first ends of the first slide 21 and the second slide 22 both abut the roller 12 to separate the internal space of the cylinder body 11 into a first working chamber 3 and a second working chamber 4.

[0043] Among them, the cylinder body 11 is respectively constructed with air passages corresponding to the first working chamber 3 and the second working chamber 4, and the second slide 22 is located between the downstream end of the first working chamber 3 and the upstream end of the second working chamber 4 in the rotation direction of the roller 12. The second slide 22 is provided with an air supply channel 221 for connecting the first working chamber 3 and the second working chamber 4.

[0044] Specifically, the pump body assembly of the present invention mainly includes a cylinder component 1 and a vane component 2 in structure. The cylinder component 1, as the main body of the pump body assembly, is mainly composed of a cylinder body 11 and a roller 12. The roller 12 is eccentrically arranged inside the cylinder body 11 and can run eccentrically inside the cylinder body 11. There is always a contact point between the outer peripheral surface of the roller 12 and the inner wall of the cylinder body 11. The contact point will continuously change position along the circumferential direction on the inner wall of the cylinder body 11 as the roller 12 rotates. The vane component 2 includes a first vane 21 and a second vane 22. Both vanes are arranged along the radial direction of the cylinder body 11. The vanes can move radially relative to the cylinder body 11. The first ends of the first vane 21 and the second vane 22 both abut the outer peripheral surface of the roller 12, and then the first vane 21 and the second vane 22 jointly divide the annular area between the roller 12 and the cylinder body 11 into a first working chamber 3 and a second working chamber 4, as shown in the accompanying drawings. Figure 1 The structure and working principle of the sliding plate itself are relatively mature existing technologies, and can be referred to in existing literature. The present invention will not elaborate on them in detail.

[0045] Based on the above basic structural design, the present invention further provides an air passage on the cylinder body 11, including two air passage structures corresponding to and connected with the first working chamber 3 and the second working chamber 4 respectively. The air passage is mainly used to realize the air intake and exhaust of the corresponding working chambers, that is, in the present invention, the first working chamber 3 and the second working chamber 4 can independently intake and exhaust. In addition, the present invention is constructed with an air supply channel 221 between the first working chamber 3 and the second working chamber 4, which is used to realize the linkage between the first working chamber 3 and the second working chamber 4. Specifically, in the rotation direction of the roller 12, the first working chamber 3 has an upstream end and a downstream end, and the second working chamber 4 also has an upstream end and a downstream end. The downstream end of the first working chamber 3 is adjacent to the upstream end of the second working chamber 4. The second slide 22 is arranged between the downstream end of the first working chamber 3 and the upstream end of the second working chamber 4 to separate the first working chamber 3 and the second working chamber 4. The air supply channel 221 is arranged on the second slide 22. Based on the operating state of the roller 12, the second slide 22 moves radially along the cylinder body 11, thereby changing the radial position of the air supply channel 221 in the cylinder body 11, thereby opening and closing the air supply channel 221, and ultimately controlling the communication between the first working chamber 3 and the second working chamber 4. In addition, the specific number of slides and working chambers can be set to other numbers as needed.

[0046] Specifically, the attached figure Figure 1 The state shown is the initial state, at this time, the air supply channel 221 on the second slide 22 is withdrawn from the internal space of the cylinder body 11, and the first working chamber 3 and the second working chamber 4 are not connected. When the roller 12 as a whole rotates clockwise with the center of the cylinder body 11 as the rotation center, the first working chamber 3 and the second working chamber 4 enter the suction process, as shown in the figure Figure 2 and Figure 3 As shown, at the position of the second slide 22, the width between the roller 12 and the inner wall of the cylinder 11 gradually increases, the volume of the second working chamber 4 gradually increases, and then the air supply channel 221 gradually enters the internal space of the cylinder 11, and the first working chamber 3 and the second working chamber 4 gradually communicate with each other. At this time, the gas in the second working chamber 4 can be supplemented to the first working chamber 3, realizing the air supply in the cylinder, maximizing the air supply volume, and improving the volume utilization rate. Then, when the roller 12 rotates to the figure Figure 4 In the state shown, the volume of the second working chamber 4 increases to the maximum, but the air supply channel 221 re-exits outside the internal space of the cylinder body 11, and the first working chamber 3 and the second working chamber 4 are disconnected and each enters the exhaust process.

[0047] Based on the pump body assembly of the utility model, two working chambers that can independently inhale and exhaust are constructed inside the cylinder body, and an air supply channel that can communicate with each other is set between the two working chambers. During the air intake process, part of the refrigerant in one working chamber can be replenished into the other working chamber through the air supply channel, thereby realizing air replenishment in the cylinder, maximizing the air supply volume, and improving volume utilization.

[0048] Furthermore, the air passage includes an air intake channel 5 and an air exhaust channel 6, which are connected to the upstream end and the downstream end of the corresponding working chamber respectively, and are used to independently realize the air intake and exhaust of the first working chamber 3 and the second working chamber 4 respectively.

[0049] Furthermore, the air supply channel 221 is constructed as a through hole that passes through the second slide 22; according to requirements, the through hole can be constructed as a circular hole and there are multiple through holes, and the multiple through holes are evenly distributed along the width direction of the second slide 22; or the through hole can also be constructed as a strip hole and there are at least one strip hole, which extends along the width direction of the second slide 22.

[0050] Furthermore, a first mounting groove 111 and a second mounting groove 112 extending radially are provided on the cylinder body 11, and a first slide 21 and a second slide 22 are respectively installed in the first mounting groove 111 and the second mounting groove 112; wherein, the second slide 22 is constructed to be able to move radially relative to the second mounting groove 112 with the eccentric rotation of the roller 12, so that the air supply channel 221 enters the cylinder body 11 or retreats to the second mounting groove 112.

[0051] Specifically, the first slide 21 and the second slide 22 are respectively arranged in the first mounting groove 111 and the second mounting groove 112 of the cylinder body 11, and the slides and the mounting grooves can move relative to each other in the radial direction of the cylinder body 11. During the eccentric rotation of the roller 12, the roller 12 will apply a radially outward force to the first slide 21 and the second slide 22, so that the corresponding slides retreat into the corresponding mounting grooves. For the second slide 22, during the process of its retreat into the second mounting groove 112, the air supply channel 221 can also gradually retreat into the second mounting groove 112, thereby disconnecting the communication relationship between the first working chamber 3 and the second working chamber 4. Then, after the roller 12 rotates past the corresponding slide, under the pressure of the external refrigerant gas, the corresponding slide can radially inwardly enter the internal space of the cylinder body 11.

[0052] Example 2

[0053] An embodiment of the present utility model provides a pump body assembly, which includes a cylinder component 1 and a slide component 2; the cylinder component 1 includes a cylinder body 11 and a roller 12 eccentrically arranged in the cylinder body 11; the slide component 2 includes at least a first slide 21 and a second slide 22 spaced apart on the cylinder body 11 along the rotation direction of the roller 12, and the first ends of the first slide 21 and the second slide 22 both abut the roller 12 to separate the internal space of the cylinder body 11 into a first working chamber 3 and a second working chamber 4.

[0054] Among them, the cylinder body 11 is respectively constructed with air passages corresponding to the first working chamber 3 and the second working chamber 4, and the second slide 22 is located between the downstream end of the first working chamber 3 and the upstream end of the second working chamber 4 in the rotation direction of the roller 12. The second slide 22 is provided with an air supply channel 221 for connecting the first working chamber 3 and the second working chamber 4.

[0055] Specifically, the pump body assembly of the present invention mainly includes a cylinder component 1 and a vane component 2 in structure. The cylinder component 1, as the main body of the pump body assembly, is mainly composed of a cylinder body 11 and a roller 12. The roller 12 is eccentrically arranged inside the cylinder body 11 and can run eccentrically inside the cylinder body 11. There is always a contact point between the outer peripheral surface of the roller 12 and the inner wall of the cylinder body 11. The contact point will continuously change position along the circumferential direction on the inner wall of the cylinder body 11 as the roller 12 rotates. The vane component 2 includes a first vane 21 and a second vane 22. Both vanes are arranged along the radial direction of the cylinder body 11. The vanes can move radially relative to the cylinder body 11. The first ends of the first vane 21 and the second vane 22 both abut the outer peripheral surface of the roller 12, and then the first vane 21 and the second vane 22 jointly divide the annular area between the roller 12 and the cylinder body 11 into a first working chamber 3 and a second working chamber 4, as shown in the accompanying drawings. Figure 1 The structure and working principle of the sliding plate itself are relatively mature existing technologies, and can be referred to in existing literature. The present invention will not elaborate on them in detail.

[0056] Based on the above basic structural design, the present invention further provides an air passage on the cylinder body 11, including two air passage structures corresponding to and connected with the first working chamber 3 and the second working chamber 4 respectively. The air passage is mainly used to realize the air intake and exhaust of the corresponding working chambers, that is, in the present invention, the first working chamber 3 and the second working chamber 4 can independently intake and exhaust. In addition, the present invention is constructed with an air supply channel 221 between the first working chamber 3 and the second working chamber 4, which is used to realize the linkage between the first working chamber 3 and the second working chamber 4. Specifically, in the rotation direction of the roller 12, the first working chamber 3 has an upstream end and a downstream end, and the second working chamber 4 also has an upstream end and a downstream end. The downstream end of the first working chamber 3 is adjacent to the upstream end of the second working chamber 4. The second slide 22 is arranged between the downstream end of the first working chamber 3 and the upstream end of the second working chamber 4 to separate the first working chamber 3 and the second working chamber 4. The air supply channel 221 is arranged on the second slide 22. Based on the operating state of the roller 12, the second slide 22 moves radially along the cylinder body 11, thereby changing the radial position of the air supply channel 221 in the cylinder body 11, thereby opening and closing the air supply channel 221, and ultimately controlling the communication between the first working chamber 3 and the second working chamber 4. In addition, the specific number of slides and working chambers can be set to other numbers as needed.

[0057] Specifically, the attached figure Figure 1 The state shown is the initial state, at this time, the air supply channel 221 on the second slide 22 is withdrawn from the internal space of the cylinder body 11, and the first working chamber 3 and the second working chamber 4 are not connected. When the roller 12 as a whole rotates clockwise with the center of the cylinder body 11 as the rotation center, the first working chamber 3 and the second working chamber 4 enter the suction process, as shown in the figure Figure 2 and Figure 3 As shown, at the position of the second slide 22, the width between the roller 12 and the inner wall of the cylinder 11 gradually increases, the volume of the second working chamber 4 gradually increases, and then the air supply channel 221 gradually enters the internal space of the cylinder 11, and the first working chamber 3 and the second working chamber 4 gradually communicate with each other. At this time, the gas in the second working chamber 4 can be supplemented to the first working chamber 3, realizing the air supply in the cylinder, maximizing the air supply volume, and improving the volume utilization rate. Then, when the roller 12 rotates to the figure Figure 4 In the state shown, the volume of the second working chamber 4 increases to the maximum, but the air supply channel 221 re-exits outside the internal space of the cylinder body 11, and the first working chamber 3 and the second working chamber 4 are disconnected and each enters the exhaust process.

[0058] Based on the pump body assembly of the utility model, two working chambers that can independently inhale and exhaust are constructed inside the cylinder body, and an air supply channel that can communicate with each other is set between the two working chambers. During the air intake process, part of the refrigerant in one working chamber can be replenished into the other working chamber through the air supply channel, thereby realizing air replenishment in the cylinder, maximizing the air supply volume, and improving volume utilization.

[0059] Furthermore, the air passage includes an air intake channel 5 and an air exhaust channel 6, which are connected to the upstream end and the downstream end of the corresponding working chamber respectively, and are used to independently realize the air intake and exhaust of the first working chamber 3 and the second working chamber 4 respectively.

[0060] Furthermore, as shown in the accompanying drawings Figures 5 to 7 As shown, the air supply channel 221 is constructed as a through hole that passes through the second slide 22; according to requirements, the through hole can be constructed as a circular hole and there are multiple through holes, and the multiple through holes are evenly distributed along the width direction of the second slide 22; or the through hole can also be constructed as a strip hole and there are at least one strip hole, which extends along the width direction of the second slide 22.

[0061] Furthermore, a first mounting groove 111 and a second mounting groove 112 extending radially are provided on the cylinder body 11, and a first slide 21 and a second slide 22 are respectively installed in the first mounting groove 111 and the second mounting groove 112; wherein, the second slide 22 is constructed to be able to move radially relative to the second mounting groove 112 with the eccentric rotation of the roller 12, so that the air supply channel 221 enters the cylinder body 11 or retreats to the second mounting groove 112.

[0062] Specifically, the first slide 21 and the second slide 22 are respectively arranged in the first mounting groove 111 and the second mounting groove 112 of the cylinder body 11, and the slides and the mounting grooves can move relative to each other in the radial direction of the cylinder body 11. During the eccentric rotation of the roller 12, the roller 12 will apply a radially outward force to the first slide 21 and the second slide 22, so that the corresponding slides retreat into the corresponding mounting grooves. For the second slide 22, during the process of its retreat into the second mounting groove 112, the air supply channel 221 can also gradually retreat into the second mounting groove 112, thereby disconnecting the communication relationship between the first working chamber 3 and the second working chamber 4. Then, after the roller 12 rotates past the corresponding slide, under the pressure of the external refrigerant gas, the corresponding slide can radially inwardly enter the internal space of the cylinder body 11.

[0063] Furthermore, there is an angle α between the first sliding plate 21 and the second sliding plate 22, and there is an angle θ between the position where the outer peripheral surface of the roller 12 contacts the inner wall of the cylinder body 11 and the rotation starting position of the first sliding plate 21 when the roller 12 rotates;

[0064] The angle α, the rotation angle θ, and the distance between the position of the air supply channel 221 on the second slide 22 and the first end of the second slide 22 satisfy:

[0065] When 0°<θ≤180°-α, the air supply channel 221 can gradually enter the cylinder body 11 along with the second sliding vane 22 moving radially inward;

[0066] When 180°-α<θ<180°-α / 2, the air supply channel 221 can gradually exit from the cylinder body 11 along with the second sliding vane 22 moving radially outward, but does not completely exit from the cylinder body 11;

[0067] When θ=180°−α / 2, the air supply channel 221 can just completely exit the cylinder body 11 along with the second sliding vane 22 moving radially outward.

[0068] Specifically, as shown in the accompanying drawings Figures 1 to 4 As shown, the angle α is a fixed value after it is determined, and the angle of the rotation angle θ will change with the rotation of the roller 12. During the intake process, the angle of the rotation angle θ continues to increase, and the volume of the second working chamber 4 also continues to increase. In this process, as in Example 1, the position of the air supply channel 221 in the radial direction of the cylinder body 11 continues to change, thereby changing the communication relationship between the first working chamber 3 and the second working chamber 4, thereby realizing the air supply between the working chambers during the intake process and the independent exhaust of each working chamber during the exhaust process. In the present utility model, the value of the angle α is 60° to 120°.

[0069] Furthermore, the volume of the first working chamber 3 is greater than that of the second working chamber 4 . The first working chamber 3 is a main working chamber, and the second working chamber 4 is mainly used to replenish air to the first working chamber 3 .

[0070] Furthermore, the thickness of the first sliding sheet 21 is not less than the thickness of the second sliding sheet 22 .

[0071] Specifically, the thickness of the sliding vane occupies a portion of the cylinder volume. If the sliding vane is too thick, the cylinder volume utilization rate is low. However, if the sliding vane is too thin, the movement under the action of gas force is prone to instability, resulting in reliability issues. Based on the structural design of the utility model, the gas force on the second sliding vane is less than the gas force on the first sliding vane. Therefore, the thickness setting needs to meet the requirement that the thickness of the first sliding vane ≥ the thickness of the second sliding vane, and the specific thickness value should be moderate.

[0072] Furthermore, the suction pressure of the first working chamber 3 is lower than the suction pressure of the second working chamber 4, so that the refrigerant gas in the second working chamber 4 can enter the first working chamber 3 through the air supply channel 221 under the action of the pressure difference; the first working chamber 3 and the second working chamber 4 are independently exhausted, so the exhaust pressures of the first working chamber 3 and the second working chamber 4 can be set to be the same.

[0073] Example 3

[0074] An embodiment of the present utility model provides a compressor, which includes a pump body assembly; the pump body assembly includes a cylinder component 1 and a vane component 2; the cylinder component 1 includes a cylinder body 11 and a roller 12 eccentrically arranged in the cylinder body 11; the vane component 2 includes at least a first vane 21 and a second vane 22 arranged at intervals on the cylinder body 11 along the rotation direction of the roller 12, and the first ends of the first vane 21 and the second vane 22 both abut the roller 12 to separate the internal space of the cylinder body 11 into a first working chamber 3 and a second working chamber 4.

[0075] Among them, the cylinder body 11 is respectively constructed with air passages corresponding to the first working chamber 3 and the second working chamber 4, and the second slide 22 is located between the downstream end of the first working chamber 3 and the upstream end of the second working chamber 4 in the rotation direction of the roller 12. The second slide 22 is provided with an air supply channel 221 for connecting the first working chamber 3 and the second working chamber 4.

[0076] Specifically, the pump body assembly of the present invention mainly includes a cylinder component 1 and a vane component 2 in structure. The cylinder component 1, as the main body of the pump body assembly, is mainly composed of a cylinder body 11 and a roller 12. The roller 12 is eccentrically arranged inside the cylinder body 11 and can run eccentrically inside the cylinder body 11. There is always a contact point between the outer peripheral surface of the roller 12 and the inner wall of the cylinder body 11. The contact point will continuously change position along the circumferential direction on the inner wall of the cylinder body 11 as the roller 12 rotates. The vane component 2 includes a first vane 21 and a second vane 22. Both vanes are arranged along the radial direction of the cylinder body 11. The vanes can move radially relative to the cylinder body 11. The first ends of the first vane 21 and the second vane 22 both abut the outer peripheral surface of the roller 12, and then the first vane 21 and the second vane 22 jointly divide the annular area between the roller 12 and the cylinder body 11 into a first working chamber 3 and a second working chamber 4, as shown in the accompanying drawings. Figure 1 The structure and working principle of the sliding plate itself are relatively mature existing technologies, and can be referred to in existing literature. The present invention will not elaborate on them in detail.

[0077] Based on the above basic structural design, the present invention further provides an air passage on the cylinder body 11, including two air passage structures corresponding to and connected with the first working chamber 3 and the second working chamber 4 respectively. The air passage is mainly used to realize the air intake and exhaust of the corresponding working chambers, that is, in the present invention, the first working chamber 3 and the second working chamber 4 can independently intake and exhaust. In addition, the present invention is constructed with an air supply channel 221 between the first working chamber 3 and the second working chamber 4, which is used to realize the linkage between the first working chamber 3 and the second working chamber 4. Specifically, in the rotation direction of the roller 12, the first working chamber 3 has an upstream end and a downstream end, and the second working chamber 4 also has an upstream end and a downstream end. The downstream end of the first working chamber 3 is adjacent to the upstream end of the second working chamber 4. The second slide 22 is arranged between the downstream end of the first working chamber 3 and the upstream end of the second working chamber 4 to separate the first working chamber 3 and the second working chamber 4. The air supply channel 221 is arranged on the second slide 22. Based on the operating state of the roller 12, the second slide 22 moves radially along the cylinder body 11, thereby changing the radial position of the air supply channel 221 in the cylinder body 11, thereby opening and closing the air supply channel 221, and ultimately controlling the communication between the first working chamber 3 and the second working chamber 4. In addition, the specific number of slides and working chambers can be set to other numbers as needed.

[0078] Specifically, the attached figure Figure 1 The state shown is the initial state, at this time, the air supply channel 221 on the second slide 22 is withdrawn from the internal space of the cylinder body 11, and the first working chamber 3 and the second working chamber 4 are not connected. When the roller 12 as a whole rotates clockwise with the center of the cylinder body 11 as the rotation center, the first working chamber 3 and the second working chamber 4 enter the suction process, as shown in the figure Figure 2 and Figure 3 As shown, at the position of the second slide 22, the width between the roller 12 and the inner wall of the cylinder 11 gradually increases, the volume of the second working chamber 4 gradually increases, and then the air supply channel 221 gradually enters the internal space of the cylinder 11, and the first working chamber 3 and the second working chamber 4 gradually communicate with each other. At this time, the gas in the second working chamber 4 can be supplemented to the first working chamber 3, realizing the air supply in the cylinder, maximizing the air supply volume, and improving the volume utilization rate. Then, when the roller 12 rotates to the figure Figure 4 In the state shown, the volume of the second working chamber 4 increases to the maximum, but the air supply channel 221 re-exits outside the internal space of the cylinder body 11, and the first working chamber 3 and the second working chamber 4 are disconnected and each enters the exhaust process.

[0079] Based on the pump body assembly of the utility model, two working chambers that can independently inhale and exhaust are constructed inside the cylinder body, and an air supply channel that can communicate with each other is set between the two working chambers. During the air intake process, part of the refrigerant in one working chamber can be replenished into the other working chamber through the air supply channel, thereby realizing air replenishment in the cylinder, maximizing the air supply volume, and improving volume utilization.

[0080] Furthermore, the air passage includes an air intake channel 5 and an air exhaust channel 6, which are connected to the upstream end and the downstream end of the corresponding working chamber respectively, and are used to independently realize the air intake and exhaust of the first working chamber 3 and the second working chamber 4 respectively.

[0081] Furthermore, as shown in the accompanying drawings Figures 5 to 7 As shown, the air supply channel 221 is constructed as a through hole that passes through the second slide 22; according to requirements, the through hole can be constructed as a circular hole and there are multiple through holes, and the multiple through holes are evenly distributed along the width direction of the second slide 22; or the through hole can also be constructed as a strip hole and there are at least one strip hole, which extends along the width direction of the second slide 22.

[0082] Furthermore, a first mounting groove 111 and a second mounting groove 112 extending radially are provided on the cylinder body 11, and a first slide 21 and a second slide 22 are respectively installed in the first mounting groove 111 and the second mounting groove 112; wherein, the second slide 22 is constructed to be able to move radially relative to the second mounting groove 112 with the eccentric rotation of the roller 12, so that the air supply channel 221 enters the cylinder body 11 or retreats to the second mounting groove 112.

[0083] Specifically, the first slide 21 and the second slide 22 are respectively arranged in the first mounting groove 111 and the second mounting groove 112 of the cylinder body 11, and the slides and the mounting grooves can move relative to each other in the radial direction of the cylinder body 11. During the eccentric rotation of the roller 12, the roller 12 will apply a radially outward force to the first slide 21 and the second slide 22, so that the corresponding slides retreat into the corresponding mounting grooves. For the second slide 22, during the process of its retreat into the second mounting groove 112, the air supply channel 221 can also gradually retreat into the second mounting groove 112, thereby disconnecting the communication relationship between the first working chamber 3 and the second working chamber 4. Then, after the roller 12 rotates past the corresponding slide, under the pressure of the external refrigerant gas, the corresponding slide can radially inwardly enter the internal space of the cylinder body 11.

[0084] Furthermore, there is an angle α between the first sliding plate 21 and the second sliding plate 22, and there is an angle θ between the position where the outer peripheral surface of the roller 12 contacts the inner wall of the cylinder body 11 and the rotation starting position of the first sliding plate 21 when the roller 12 rotates;

[0085] The angle α, the rotation angle θ, and the distance between the position of the air supply channel 221 on the second slide 22 and the first end of the second slide 22 satisfy:

[0086] When 0°<θ≤180°-α, the air supply channel 221 can gradually enter the cylinder body 11 along with the second sliding vane 22 moving radially inward;

[0087] When 180°-α<θ<180°-α / 2, the air supply channel 221 can gradually exit from the cylinder body 11 along with the second sliding vane 22 moving radially outward, but does not completely exit from the cylinder body 11;

[0088] When θ=180°−α / 2, the air supply channel 221 can just completely exit the cylinder body 11 along with the second sliding vane 22 moving radially outward.

[0089] Specifically, as shown in the accompanying drawings Figures 1 to 4 As shown, the angle α is a fixed value after it is determined, and the angle of the rotation angle θ will change with the rotation of the roller 12. During the intake process, the angle of the rotation angle θ continues to increase, and the volume of the second working chamber 4 also continues to increase. In this process, as in Example 1, the position of the air supply channel 221 in the radial direction of the cylinder body 11 continues to change, thereby changing the communication relationship between the first working chamber 3 and the second working chamber 4, thereby realizing the air supply between the working chambers during the intake process and the independent exhaust of each working chamber during the exhaust process. In the present utility model, the value of the angle α is 60° to 120°.

[0090] Furthermore, the volume of the first working chamber 3 is greater than that of the second working chamber 4 . The first working chamber 3 is a main working chamber, and the second working chamber 4 is mainly used to replenish air to the first working chamber 3 .

[0091] Furthermore, the thickness of the first sliding sheet 21 is not less than the thickness of the second sliding sheet 22 .

[0092] Specifically, the thickness of the sliding vane occupies a portion of the cylinder volume. If the sliding vane is too thick, the cylinder volume utilization rate is low. However, if the sliding vane is too thin, the movement under the action of gas force is prone to instability, resulting in reliability issues. Based on the structural design of the utility model, the gas force on the second sliding vane is less than the gas force on the first sliding vane. Therefore, the thickness setting needs to meet the requirement that the thickness of the first sliding vane ≥ the thickness of the second sliding vane, and the specific thickness value should be moderate.

[0093] Furthermore, the suction pressure of the first working chamber 3 is lower than the suction pressure of the second working chamber 4, so that the refrigerant gas in the second working chamber 4 can enter the first working chamber 3 through the air supply channel 221 under the action of the pressure difference; the first working chamber 3 and the second working chamber 4 are independently exhausted, so the exhaust pressures of the first working chamber 3 and the second working chamber 4 can be set to be the same.

[0094] Example 4

[0095] The embodiment of the present utility model provides an air-conditioning device, which includes the above-mentioned compressor and thus has all the technical effects it has. When the air-conditioning device operates in parallel compression, its principle flow chart is shown in the attached figure. Figure 8 shown.

[0096] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0097] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It should be understood that many modifications may be made to the illustrative embodiments, and that other arrangements may be devised, without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in ways other than those described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be employed in conjunction with other described embodiments.

Claims

1. A pump assembly, characterized in that: include: A cylinder component comprising a cylinder body and a roller eccentrically disposed in the cylinder body; as well as a sliding plate component, comprising at least a first sliding plate and a second sliding plate spaced apart on the cylinder along the rotation direction of the roller, wherein first ends of the first sliding plate and the second sliding plate abut against the roller to separate the interior space of the cylinder into a first working chamber and a second working chamber; In which, the cylinder body is respectively constructed with air passages corresponding to the first working chamber and the second working chamber, the second slide is located between the downstream end of the first working chamber and the upstream end of the second working chamber in the rotation direction of the roller, and the second slide is provided with an air supply channel for connecting the first working chamber and the second working chamber.

2. The pump assembly according to claim 1, characterized in that The cylinder body is provided with a first mounting groove and a second mounting groove extending in a radial direction, and the first sliding plate and the second sliding plate are respectively mounted in the first mounting groove and the second mounting groove; The second sliding piece is configured to move radially relative to the second mounting groove as the roller rotates eccentrically, so that the air supply channel enters the cylinder body or retreats into the second mounting groove.

3. The pump assembly according to claim 2, characterized in that: There is an included angle α between the first sliding plate and the second sliding plate, and there is a rotation angle θ between the position where the outer peripheral surface of the roller contacts the inner wall of the cylinder and the rotation starting position of the first sliding plate when the roller rotates; The angle α, the rotation angle θ, and the distance between the position of the gas supplement channel on the second slide and the first end of the second slide satisfy: When 0°<θ≤180°-α, the air supply channel can gradually enter the cylinder body along with the second sliding vane moving radially inward; When 180°-α<θ<180°-α / 2, the air supply channel can gradually exit from the cylinder body along with the second sliding vane moving radially outward, but does not completely exit from the cylinder body; When θ=180°-α / 2, the air supply channel can just completely exit the cylinder body along with the second sliding vane moving radially outward.

4. The pump assembly according to claim 3, characterized in that The angle α between the first sliding plate and the second sliding plate ranges from 60° to 120°.

5. The pump assembly according to claim 1, characterized in that The volume of the first working chamber is greater than the volume of the second working chamber.

6. The pump assembly according to claim 1, characterized in that The thickness of the first sliding sheet is not less than the thickness of the second sliding sheet.

7. The pump assembly according to claim 1, characterized in that The suction pressure of the first working chamber is lower than the suction pressure of the second working chamber, and the exhaust pressures of the first working chamber and the second working chamber are the same.

8. The pump assembly according to claim 1, characterized in that The air passage includes an air intake passage and an air exhaust passage, and the air intake passage and the air exhaust passage are respectively connected to the upstream end and the downstream end of the corresponding working chamber.

9. The pump assembly according to claim 1, wherein: The air supply channel is configured as a through hole penetrating the second sliding plate; the through hole is configured as a circular hole and there are a plurality of the through holes, and the plurality of the through holes are evenly distributed along the width direction of the second sliding plate; or The through hole is configured as a strip-shaped hole and the number of the through hole is at least one. The strip-shaped hole extends along the width direction of the second sliding sheet.

10. A compressor, characterized in that: The pump assembly comprises the pump body assembly according to any one of claims 1 to 9.

11. An air conditioning device, characterized in that: Comprising the compressor of claim 10.

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