A pump body structure with hinges and a compressor

Abstract

This invention provides a pump body structure and compressor with a hinge. By using a hinge between the ring and the blades to ensure the connection, even at low frequencies, there will be no disengagement that would cause knocking noise, thus avoiding noise and performance degradation caused by knocking noise and making the performance more stable at low frequencies. At the same time, a first oil reservoir is formed on the upper end face of the hinge, and an oil lubrication hole is opened on the ring through its outer and inner circumferential surfaces. The first positioning groove connects the first limiting groove and the inner circumferential surface of the ring to reduce the friction between the corresponding components, improve smoothness, and reduce noise. One end of the blade abuts in the first limiting groove, which reduces the contact area between the blade and the ring compared to the prior art, avoids power consumption, and facilitates the processing and manufacturing of the blade.

Description

Technical Field

[0001] This invention belongs to the field of compressor technology, specifically relating to a pump body structure with a hinge and a compressor. Background Technology

[0002] In the working chamber of a traditional rotary compressor, one end of the blades maintains close contact with the outer diameter of the linkage ring, thus dividing the cylinder's inner cavity into two independent working areas: a high-pressure chamber and a low-pressure chamber. This ensures the orderly operation of the compressor's intake, compression, and exhaust cycles. To maintain this crucial sealed contact, a spring structure is specifically installed at the tail end of the cylinder. The spring's preload continuously pushes the blades, ensuring they remain tightly fitted to the outer surface of the linkage ring, preventing air leakage between the high and low-pressure chambers due to excessive clearance.

[0003] However, in actual operation, the blades need to perform high-frequency reciprocating motion within the blade slots of the cylinder, inevitably resulting in frictional resistance between the blade sidewall and the blade slot. When the compressor operates at low speed, on the one hand, the preload of the spring itself has a design threshold, and at low speed, its output spring force is insufficient to completely offset the frictional resistance between the blade and the slot; on the other hand, the gas pressure at the back of the cylinder weakens as the speed decreases, failing to provide sufficient auxiliary thrust for the blades. The combination of these two factors makes it difficult for one end of the blade to maintain a continuous and stable contact with the outer circle of the linkage ring, resulting in intermittent collisions and scraping between the blade and the linkage ring during movement, which is what the industry calls blade chasing noise.

[0004] This abnormal mechanical contact not only generates significant noise pollution and disrupts the quiet operation of the equipment, but also causes the seal between the high and low pressure chambers to fail, leading to gas backflow problems. This directly results in a decrease in the compressor's compression efficiency and an increase in energy consumption, ultimately causing a serious deterioration in the overall performance of the machine. It may even exacerbate the wear of the blades and the linkage ring, shortening the compressor's service life.

[0005] Existing technology discloses a compression assembly and compressor of a rotary compressor. The rotor has a crescent-shaped connecting groove on its edge, and the blade ends extend with crescent-shaped connectors adapted to the connecting groove. The connectors are embedded in the connecting groove and the two are slidably sealed together. The rotor and blades are connected to each other through a sliding constraint connection via the connecting groove and the connector. During the eccentric rotation of the eccentric wheel, the rotor does not rotate and remains constrained to the blades. This sliding constraint connection reduces the generation of overlapping friction, thus avoiding the possibility of wear on the rotor and blades due to friction. Furthermore, the relative sealing between the connector and the connecting groove reduces the possibility of gas leakage, thereby improving the overall efficiency of the compressor. In the above solution, the blade connector is embedded in the connecting groove on the rotor edge, increasing the contact area between the blades and the rotor. Compared to the traditional contact method, this increases friction and causes some power consumption. Moreover, the sliding contact between the two requires precision machining of the rotor and blades, increasing the manufacturing difficulty. Summary of the Invention

[0006] To address the shortcomings of the prior art, this invention provides a pump body structure and compressor with a hinge, which can avoid noise and performance degradation caused by the generation of knocking noise, making the performance more stable during low-frequency operation. It also reduces the friction between corresponding components, improves smoothness, and reduces noise. By placing one end of the blade against the first limiting groove, the contact area between the blade and the ring body can be reduced compared to the prior art, avoiding power consumption and facilitating the processing and manufacturing of the blade.

[0007] The technical effects to be achieved by this invention are realized through the following technical aspects: In one aspect, the present invention provides a pump body structure with a hinge, including a rotating shaft, a ring body, a cylinder, blades, and a hinge member; The ring body is sleeved on the outside of the rotating shaft. The cylinder body has a first through hole in the axial direction and a first mounting groove in the radial direction. The first through hole communicates with the first mounting groove. The ring body is assembled in the first through hole, and the blade is assembled in the first mounting groove. A first limiting groove is formed on the outer circumferential surface of the ring body relative to the position of the blade, and one end of the blade near the ring body abuts in the first limiting groove. A first positioning groove is formed on the upper surface of the ring body corresponding to the position of the first mounting groove, which connects the first limiting groove and the inner circumferential surface of the ring body. A first positioning hole is provided at the bottom of the first positioning groove. A second positioning groove is formed on the upper surface of the blade near the end of the first limiting groove. A second positioning hole is provided at the bottom of the second positioning groove. The hinge is assembled between the first positioning groove and the second positioning groove, and is connected between the ring body and the blade through the first positioning hole and the second positioning hole; The upper end face of the hinge has a first oil reservoir, and the ring has an oil lubrication hole that penetrates the outer and inner circumferential surfaces.

[0008] In some implementations, the end of the blade near the ring body is an arc end, the first limiting groove is an arc-shaped groove, and the arc end is tightly fitted into the arc-shaped groove.

[0009] In some implementations, the center of the arc end is the same as the center of the second positioning hole.

[0010] In some implementations, the second positioning groove is a V-groove, with the opening of the V-groove facing the annulus. The second positioning groove is connected to the arc end.

[0011] In some implementations, a second oil storage tank is also provided at the bottom of the second positioning groove.

[0012] In some implementations, the second oil reservoir extends along one side of the second positioning groove toward the other side of the second positioning groove.

[0013] In some implementations, the included angle of the second positioning groove is set to α1; Let L1 be the centerline of the arc end, L2 be the line connecting the center of the arc end and the center of the ring body, and α2 be the maximum included angle between L1 and L2 towards the axis of rotation. The following relationship exists between α1 and α2: α1 / 2 < α2 < α1.

[0014] In some implementations, the hinge includes a main body end and a first connecting end and a second connecting end connected to opposite ends of the main body end; The first connecting end is positioned and connected to the first positioning hole, and the second connecting end is positioned and connected to the second positioning hole.

[0015] In some implementations, part of the main body end is embedded in the first positioning groove, and part of the main body end is located in the V-shaped groove; The rotating shaft drives the ring to rotate, and the main body end, which is linked to the V-groove, swings in the V-groove.

[0016] In another aspect, the present invention also provides a compressor, including a housing, a motor structure, and a pump body structure as described in any of the preceding claims; The motor structure and the pump body structure are assembled inside the housing, and the motor structure is connected to the pump body structure.

[0017] In summary, the present invention has at least the following advantages: 1. The present invention provides a pump body structure with a hinge, which uses a hinge as the connection medium between the blade and the ring body. Compared with the traditional spring-loaded contact structure, the hinge can mechanically lock one end of the blade to the ring body, forming a fixed coupling relationship. This allows the blade to rotate radially in sync with the rotation of the ring body, completely eliminating the dependence on spring preload and gas thrust from the back of the cylinder. Even when the compressor is operating at low frequency and low speed, the hinge can always ensure precise contact between the blade and the ring body, preventing the blade from separating or misaligning due to insufficient driving force. This eliminates the blade chasing noise caused by intermittent collisions and scraping between the blade and the ring body, making the performance more stable during low-frequency operation. By placing one end of the blade against the first limiting groove, the contact area between the blade and the ring body can be reduced compared with the prior art, avoiding power consumption and facilitating the processing and manufacturing of the blade. Meanwhile, a first oil reservoir is formed on the upper surface of the hinge to reduce the friction between the hinge and the upper support, making the linkage smoother. Lubricating holes are opened on the ring body, penetrating its outer and inner circumferential surfaces. The lubricating oil located between the ring body and the rotor penetrates into the first limiting groove through the lubricating holes, generating a lubricating effect between the blades and the ring body, reducing the loss and noise caused by friction. In addition, the first positioning groove connects the first limiting groove and the inner circumferential surface of the ring body. When the lubricating oil in the first oil reservoir overflows into the first positioning groove under the swinging action between the hinge and the upper support, it can flow out through the first positioning groove to the first limiting groove or the inner circumferential surface of the ring body and the rotor, playing a role in lubrication and heat dissipation, and giving full play to the effect of lubricating oil in reducing the loss and noise of the whole.

[0018] 2. The compressor provided by the present invention, after applying the above-mentioned hinged pump body structure, significantly improves the quietness of the whole machine operation, and also avoids the phenomenon of gas leakage between high and low pressure chambers caused by the failure of the blade and ring seal, ensuring that the compression efficiency and energy consumption of the compressor are stable and controllable under low speed conditions, and significantly enhancing the operational reliability and performance consistency of the equipment in the entire speed range. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the pump body structure provided in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the cylinder block provided in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the structure of the ring provided in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the blade structure provided in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the hinge component provided in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the blade structure provided in Embodiment 2 of the present invention; Figure 7 This is a schematic diagram of α1 and α2 provided in Embodiment 2 of the present invention; Figure 8 This is a schematic diagram of the hinge component provided in Embodiment 2 of the present invention; Figure 9 This is a schematic diagram of the compressor provided in Embodiment 3 of the present invention; Marked in the image: 10. Pump body structure; 100. Shaft; 200, Ring body; 210, First limiting groove; 220, First positioning groove; 230, First positioning hole; 240, Lubrication hole; 300, Cylinder block; 310, First through hole; 320, First mounting slot; 400, blade; 410, second positioning groove; 420, second positioning hole; 430, second oil reservoir; 500, Hinged connector; 510, First oil reservoir; 520, Main body end; 530, First connecting end; 540, Second connecting end; 20. Outer shell; 30. Motor structure. Detailed Implementation

[0020] To facilitate understanding of the present invention, a more comprehensive description will be given below in conjunction with the accompanying drawings and specific embodiments. The drawings illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0021] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0024] Example 1: Please see Figures 1-5 A pump body structure 10 with a hinge includes a rotating shaft 100, a ring body 200, a cylinder body 300, a blade 400, and a hinge member 500. The ring body 200 is sleeved on the outside of the rotating shaft 100. The cylinder body 300 has a first through hole 310 in the axial direction and a first mounting groove 320 in the radial direction. The first through hole 310 communicates with the first mounting groove 320. The ring body 200 is assembled in the first through hole 310, and the blade 400 is assembled in the first mounting groove 320.

[0025] The cylinder body 300 provides a fixed working cavity for the entire pump body structure 10. Its inner wall is the working reference surface for fluid compression. The ring body 200 is installed in the first through hole 310 of the cylinder body 300 in an eccentric state, with a certain annular gap reserved between them. The first mounting groove 320 is opened along the radial direction of the cylinder body 300. The blade 400 is embedded in the first mounting groove 320 and can move freely radially along the first mounting groove 320.

[0026] A first limiting groove 210 is formed on the outer peripheral surface of the ring 200 at a position relative to the blade 400, and one end of the blade 400 near the ring 200 abuts in the first limiting groove 210.

[0027] The first limiting groove 210 is recessed inward on the outer circumference of the ring body 200, matching the end profile of the blade 400. This allows the end of the blade 400 to abut and fit tightly inside the first limiting groove 210. The first limiting groove 210 forms a radial constraint on the end of the blade 400, achieving precise positioning of the blade 400 during assembly and preventing the blade 400 from shifting, moving, or loosening during operation. It also allows the ring body 200 to rotate synchronously with the rotating shaft 100, constraining the blade 400 to maintain the set extension stroke and swing trajectory. This ensures that the blade 400, the ring body 200, and the cylinder body 300 always maintain a stable fit clearance and sealing condition, guaranteeing smooth and reliable changes in the overall volume of the pump body and fluid delivery operations.

[0028] A first positioning groove 220 is formed on the upper end face of the ring 200 at the position corresponding to the first mounting groove 320, which connects the first limiting groove 210 and the inner circumferential surface of the ring 200. The first positioning groove 220 is radially arranged along the upper end face of the ring 200, with one end connected to the first limiting groove 210 on the outer circumferential surface of the ring 200 and the other end directly connected to the inner circumferential surface of the ring 200, forming a through-type flow guiding and assembly channel.

[0029] Meanwhile, a first positioning hole 230 is provided at the bottom of the first positioning groove 220, and the first positioning hole 230 is vertically drilled along the bottom of the first positioning groove 220; correspondingly, a second positioning groove 410 is formed on the upper end surface of the blade 400 near the end of the first limiting groove 210, and a second positioning hole 420 is provided at the bottom of the second positioning groove 410, and the second positioning hole 420 is also vertically drilled along the bottom of the second positioning groove 410.

[0030] The hinge 500 is assembled between the first positioning groove 220 and the second positioning groove 410, and is connected between the ring 200 and the blade 400 through the first positioning hole 230 and the second positioning hole 420, thereby realizing the hinged movable connection between the ring 200 and the blade 400.

[0031] The first positioning groove 220 and the second positioning groove 410 provide circumferential and radial limits for the hinge 500, preventing it from coming off or shifting. The first positioning hole 230 and the second positioning hole 420 provide a precise installation reference for the hinge 500, allowing the blade 400 to make small-amplitude swings and adaptive extensions around the hinge 500. This not only constrains the relative installation position of the blade 400 and the ring body 200, ensuring that the end of the blade 400 always fits in the first limiting groove 210 without circumferential movement or radial disengagement, but also adapts to the eccentric movement and volume changes of the pump body during operation, buffering the assembly stress during operation.

[0032] When the power source drives the rotating shaft 100 to rotate, the rotating shaft 100 will directly drive the ring body 200 to perform synchronous eccentric rotation within the cylinder 300. At this time, the blades 400, along with the rotation of the ring body 200, begin to perform circumferential sweeping motion around the inner wall of the cylinder 300, laying the foundation for subsequent fluid operations.

[0033] As the shaft 100 continues to rotate, the eccentric motion of the ring 200 causes the volume of the sealed chamber enclosed by the blade 400, the inner circumference of the cylinder 300, and the outer circumference of the ring 200 to gradually increase. According to the principle of gas or fluid expansion, a negative pressure environment will be formed inside the chamber.

[0034] When the chamber rotates to align with the intake port on the cylinder 300, external fluid is drawn into the chamber under the action of pressure difference until the chamber volume reaches its maximum, completing the intake process. During this stage, the blades 400, relying on the hinge 500, maintain close contact with the cylinder 300 and remain firmly against the inner wall of the cylinder 300, ensuring the sealing of the intake chamber and preventing fluid leakage.

[0035] The rotating shaft 100 continues to drive the ring body 200 to rotate, and the sealed chamber that has completed the intake moves with the ring body 200, gradually deviating from the intake position and turning towards the discharge port of the cylinder 300. During this process, the eccentric structure of the ring body 200 forces the chamber volume to continuously shrink, the fluid in the chamber is continuously compressed, and the pressure increases accordingly.

[0036] When the high-pressure chamber rotates to align with the discharge port, the compressed fluid, under pressure, pushes open the one-way valve at the discharge port and is discharged from the pump body. After discharge, the vane 400 returns to the suction starting position with the rotation of the ring 200, entering the next working cycle.

[0037] The upper end face of the hinge 500 is formed with a first oil reservoir 510, and the ring 200 is provided with an oil lubrication hole 240 that penetrates the outer and inner circumferential surfaces.

[0038] In the complete structural assembly, the upper end face of the hinge 500 is connected to an upper support. Friction occurs between the upper support and the hinge 500. To reduce friction loss, a first oil reservoir 510 is formed by recessing inward on the upper end face of the hinge 500. The first oil reservoir 510 is distributed along the length of the hinge 500 to increase the lubrication points in contact with the upper support. Since the hinge 500 is assembled between the first positioning groove 220 and the second positioning groove 410, and the first positioning groove 220 connects the first limiting groove 210 and the inner circumferential surface of the ring 200, the lubricating oil in the first oil reservoir 510 flows to the inner and outer circumferential surfaces of the ring 200 through the connection between the grooves during the pump body movement. This not only plays a role in lubrication and heat dissipation, but also reduces friction loss during the reciprocating sliding of the blade 400 and the rotation of the hinge, thereby improving the pump body's operational stability, sealing performance, and overall service life.

[0039] In one example, there is one lubrication hole 240, which is opened radially along the ring body 200. In the axial direction, it is located in the middle of the ring body 200. In the radial direction, it corresponds to the first limiting groove 210, that is, it connects to the first limiting groove 210, so that some lubricating oil can enter the first limiting groove 210 through the lubrication hole 240, and play a lubricating role in the friction between the first limiting groove 210 and the blade 400.

[0040] The purpose of providing an oil lubrication hole 240 here is to ensure lubrication while avoiding excessive perforation that could lead to pump leakage, thus ensuring the pump operates in a sealed manner.

[0041] This embodiment provides a hinged pump body structure 10, which uses a hinge 500 as the connection medium between the blade 400 and the ring 200. Compared with the traditional spring-loaded contact structure, the hinge 500 can mechanically lock one end of the blade 400 to the ring 200, forming a fixed coupling relationship. This allows the blade 400 to radially oscillate synchronously with the rotation of the ring 200, completely eliminating the dependence on spring preload and the gas thrust from the back of the cylinder. Even when the compressor is operating at low frequency and low speed, the hinge 500... It can also ensure the precise fit between the blade 400 and the ring 200, and prevent the blade 400 from detaching or misaligning due to insufficient driving force. It eliminates the chasing sound of the blade 400 caused by intermittent collision and scraping between the blade 400 and the ring 200 from the source, making the performance more stable during low-frequency operation. By placing one end of the blade 400 against the first limiting groove 210, the contact area between the blade 400 and the ring 200 can be reduced compared with the existing technology, avoiding power consumption and making the processing and manufacturing of the blade 400 easier. Meanwhile, a first oil reservoir 510 is formed on the upper end face of the hinge 500 to reduce the friction between the hinge 500 and the upper support, making the linkage smoother. An oil lubrication hole 240 is opened on the ring 200, penetrating its outer and inner circumferential surfaces. The lubricating oil located between the ring 200 and the rotor penetrates into the first limiting groove 210 through the oil lubrication hole 240, generating a lubricating effect between the blade 400 and the ring 200, reducing the loss and noise caused by friction. In addition, the first positioning groove 220 connects the first limiting groove 210 and the inner circumferential surface of the ring 200. When the lubricating oil in the first oil reservoir 510 overflows into the first positioning groove 220 under the swinging action between the hinge 500 and the upper support, it can flow out through the first positioning groove 220 to the first limiting groove 210 or between the inner circumferential surface of the ring 200 and the rotor, playing a role in lubrication and heat dissipation, and giving full play to the effect of lubricating oil in reducing the loss and noise of the whole.

[0042] Example 2: This embodiment makes further structural optimizations based on Embodiment 1. Please refer to... Figures 1-5 Based on the above, refer to Figures 6-8 .

[0043] In this embodiment, the end of the blade 400 near the ring 200 is an arc end, and the first limiting groove 210 is an arc groove. The arc end fits tightly into the arc groove. The contact between the arc groove and the arc end can better ensure the tightness of the connection between the ring 200 and the blade 400 during the movement of the ring 200, and can better enable the blade 400 to move radially.

[0044] Furthermore, the center of the arc end is the same as the center of the second positioning hole 420, ensuring that the hinge 500 will not interfere with or hinder the radial movement of the blade 400 after it is connected to the blade 400.

[0045] In some embodiments, the second positioning groove 410 is a V-shaped groove with the opening of the V-shaped groove facing the ring body 200; the second positioning groove 410 is connected to the arc end, and when the rotating shaft 100 drives the ring body 200 to rotate, the part of the hinge 500 that is limited in the V-shaped groove can swing in the V-shaped groove.

[0046] In order to enable the blades 400 to move radially relative to the first mounting groove 320 smoothly under the connection of the hinge 500 during the operation of the pump body structure 10, the second positioning groove 410 is designed as a V-shaped groove. The width of both sides of the V-shaped groove is greater than the width of the portion of the hinge 500 that is confined within it. Therefore, the portion of the hinge 500 can swing relative to the V-shaped groove, avoiding the blades 400 from being unable to move radially smoothly due to the hinge 500 being completely confined.

[0047] In some embodiments, a second oil storage tank 430 is also provided at the bottom of the second positioning groove 410.

[0048] Furthermore, the second oil storage tank 430 extends along one side of the second positioning groove 410 toward the other side of the second positioning groove 410.

[0049] During the operation of the pump body structure 10, the hinge 500 can swing relative to the second positioning groove 410, i.e., the V-shaped groove. Specifically, it swings between the two sides of the V-shaped groove. In order to reduce the friction between the hinge 500 and the V-shaped groove, a second oil storage groove 430 is provided vertically at the bottom of the V-shaped groove. The second oil storage groove 430 extends from one side of the V-shaped groove to the other side, i.e., it is distributed in the swinging area of ​​the hinge 500. During each swing of the hinge 500, it can be lubricated by the lubricating oil in the second oil storage groove 430.

[0050] For ease of understanding, the two sides of the V-groove are defined as the first side and the second side. During the swinging process of the hinge 500, when the hinge 500 approaches the first side of the V-groove, the space between the hinge 500 and the first side becomes smaller. At this time, lubricating oil will be squeezed into the space between the hinge 500 and the second side through the second oil reservoir 430. When the hinge 500 approaches the second side of the V-groove, the space between the hinge 500 and the second side becomes smaller. At this time, lubricating oil will be squeezed into the space between the hinge 500 and the first side through the second oil reservoir 430, and so on.

[0051] Since the opening of the V-groove faces the ring body 200 and is connected to the arc end, some of the lubricating oil in the second oil reservoir 430 will penetrate between the arc end and the first limiting groove 210, thus lubricating the contact between the blade 400 and the ring body 200.

[0052] In some embodiments, the included angle of the second positioning groove 410 is α1; the centerline of the arc end is L1; the line connecting the center of the arc end and the center of the ring 200 is L2; ​​and the maximum included angle between L1 and L2 in the direction of the rotating shaft 100 is α2. The following relationship exists between included angle α1 and included angle α2: α1 / 2 < α2 < α1.

[0053] As the shaft 100 rotates, the ring 200 undergoes eccentric motion. During this motion, the position of line L2 connecting the center of the arc end and the center of the ring 200 changes, causing the angle between L1 and L2 towards the shaft 100 to change as well. When the ring 200 reaches a certain position, the maximum angle α2 between L1 and L2 towards the shaft 100 is formed. To ensure that the hinge 500 can swing smoothly within the V-groove during the rotation of the shaft 100, the angles α1 and α2 are set to satisfy the following relationship: α1 / 2 < α2 < α1.

[0054] In some embodiments, the hinge 500 includes a main body end 520 and a first connecting end 530 and a second connecting end 540 connected to opposite ends of the main body end 520; the first connecting end 530 is positioned connected to a first positioning hole 230, and the second connecting end 540 is positioned connected to a second positioning hole 420.

[0055] A first connecting end 530 and a second connecting end 540 are provided on the main body end 520. The first connecting end 530 and the second connecting end 540 are respectively used to assemble and connect with the ring body 200 and the blade 400. In this way, the connection stability between the hinge 500 and the ring body 200 and the blade 400 can be better ensured.

[0056] Correspondingly, a first positioning hole 230 is provided on the ring body 200 to connect with the first connecting end 530, and a second positioning hole 420 is provided on the blade 400 to connect with the second connecting end 540. By setting a matching connection relationship, it is not only convenient to assemble the hinge 500, but also to ensure the stability of the connection.

[0057] Furthermore, part of the main body end 520 is embedded in the first positioning groove 220, and part of the main body end 520 is located in the V-shaped groove; the rotating shaft 100 drives the ring body 200 to rotate, and the part of the main body end 520 located in the V-shaped groove swings in the V-shaped groove.

[0058] In one example, the minimum distance between the two sides of the V-groove is equal to the width of the portion of the main body end 520 contained therein. Specifically, both ends of the main body end 520 are arc-shaped, and the pointed end of the V-groove is designed to match the arc shape. When the rotating shaft 100 rotates, the portion of the main body end 520 can swing relative to the V-groove under the linkage of the ring body 200.

[0059] Example 3: This embodiment makes further structural optimizations based on Embodiment 1 or Embodiment 2. Figures 1-8 Based on the above, refer to Figure 9 .

[0060] This embodiment provides a compressor, including a housing 20, a motor structure 30, and a pump body structure 10 as described in Embodiment 1 or Embodiment 2 above; the motor structure 30 and the pump body structure 10 are assembled inside the housing 20, and the motor structure 30 is connected to the pump body structure 10.

[0061] Specifically, the motor structure 30 and the pump body structure 10 are both integrally sealed and installed in the internal cavity of the housing 20. The housing 20 serves to encapsulate, prevent dust and reduce noise, provide pressure sealing, and accommodate the refrigerant and lubricating oil circuit. The power output end of the motor structure 30 is connected to the pump body structure 10 in a transmission, forming a coaxial linkage assembly relationship.

[0062] During operation, the external power supply powers the motor structure 30. After the motor structure 30 is powered on, it generates a rotational driving force, which stably converts electrical energy into mechanical rotational kinetic energy and directly transmits it to the pump body structure 10. Relying on the continuous rotation of the motor structure 30, the internal rotating shaft 100, blades 400 and other moving components of the pump body structure 10 operate synchronously, so that the pump body structure 10 forms a periodic volume change, thereby completing the entire process of refrigerant intake, compression and discharge, realizing the core function of refrigerant circulation, pressurization and delivery in the refrigeration system. At the same time, the sealed environment inside the outer shell 20 can ensure the lubrication, airtightness and operation stability of the whole machine, and reduce the risk of working noise and media leakage.

[0063] The compressor provided in this embodiment, after applying the pump body structure 10 with hinge, significantly improves the quietness of the whole machine operation, and also avoids the phenomenon of gas leakage between high and low pressure chambers caused by the failure of the seal between the blade 400 and the ring 200. It ensures that the compression efficiency and energy consumption of the compressor are stable and controllable under low speed conditions, and significantly enhances the operational reliability and performance consistency of the equipment in the entire speed range.

[0064] The above description is merely an example and illustration of the structure of this invention, and while the description is specific and detailed, it should not be construed as limiting the scope of this invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this invention, and these obvious substitutions all fall within the protection scope of this invention.

Claims

1. A pump body structure with a hinge, characterized in that, The pump body structure (10) includes a rotating shaft (100), a ring body (200), a cylinder body (300), a blade (400), and a hinge (500). The ring body (200) is sleeved on the outside of the rotating shaft (100). The cylinder body (300) has a first through hole (310) in the axial direction and a first mounting groove (320) in the radial direction. The first through hole (310) communicates with the first mounting groove (320). The ring body (200) is assembled in the first through hole (310), and the blade (400) is assembled in the first mounting groove (320). A first limiting groove (210) is formed on the outer peripheral surface of the ring body (200) at a position relative to the blade (400), and one end of the blade (400) near the ring body (200) abuts in the first limiting groove (210); A first positioning groove (220) is formed on the upper surface of the ring (200) corresponding to the position of the first mounting groove (320), connecting the first limiting groove (210) and the inner circumferential surface of the ring (200). A first positioning hole (230) is provided at the bottom of the first positioning groove (220). A second positioning groove (410) is formed on the upper surface of the blade (400) at the end near the first limiting groove (210). A second positioning hole (420) is provided at the bottom of the second positioning groove (410). The hinge (500) is assembled between the first positioning groove (220) and the second positioning groove (410), and is connected between the ring (200) and the blade (400) through the first positioning hole (230) and the second positioning hole (420); The upper end face of the hinge (500) is formed with a first oil reservoir (510), and the ring (200) is provided with an oil lubrication hole (240) that penetrates the outer peripheral surface and the inner peripheral surface.

2. The pump body structure with hinge according to claim 1, characterized in that, The blade (400) has an arc end near the ring (200), and the first limiting groove (210) is an arc groove, with the arc end closely fitting into the arc groove.

3. The pump body structure with hinge according to claim 2, characterized in that, The center of the arc end is the same as the center of the second positioning hole (420).

4. The pump body structure with hinge according to claim 2, characterized in that, The second positioning groove (410) is a V-shaped groove, and the opening of the V-shaped groove faces the ring (200). The second positioning groove (410) is connected to the arc end.

5. The pump body structure with hinge according to claim 4, characterized in that, The bottom of the second positioning groove (410) is also provided with a second oil storage groove (430).

6. The pump body structure with hinge according to claim 5, characterized in that, The second oil storage tank (430) extends along one side of the second positioning groove (410) toward the other side of the second positioning groove (410).

7. The pump body structure with a hinge according to claim 4, characterized in that, wherein... The included angle of the second positioning groove (410) is α1; Let the centerline of the arc end be L1, let the line connecting the center of the arc end and the center of the ring (200) be L2, and let the maximum included angle between L1 and L2 in the direction toward the axis of rotation (100) be α2. The following relationship exists between α1 and α2: α1 / 2 < α2 < α1.

8. The pump body structure with hinge according to claim 4, characterized in that, The hinge (500) includes a main body end (520) and a first connecting end (530) and a second connecting end (540) connected to opposite ends of the main body end (520). The first connecting end (530) is positioned and connected to the first positioning hole (230), and the second connecting end (540) is positioned and connected to the second positioning hole (420).

9. The pump body structure with hinge according to claim 8, characterized in that, Part of the main body end (520) is embedded in the first positioning groove (220), and part of the main body end (520) is located in the V-shaped groove; The rotating shaft (100) drives the ring (200) to rotate, and the main body end (520) located in the V-groove swings in the V-groove.

10. A compressor, characterized in that, It includes a housing (20), a motor structure (30), and a pump body structure (10) as described in any one of claims 1-9. The motor structure (30) and the pump body structure (10) are assembled inside the housing (20), and the motor structure (30) is connected to the pump body structure (10).

Images