Pump body structure and compressor

Abstract

The present invention discloses a pump body structure and a compressor. The pump body structure includes a cylinder, a rotating assembly, a sliding vane, and an elastic restoring member. The cylinder is provided with a first cavity having an elliptical cross-section and an air inlet communicating with the first cavity. The rotating assembly is rotatably inserted into the first cavity and is in contact and cooperation with a part of the inner wall of the first cavity. One end of the sliding vane is connected to the rotating assembly through the elastic restoring member, and the other end of the sliding vane abuts against the inner wall of the first cavity. During the compression process, the rotating assembly drives the sliding vane to rotate the sliding vane from the long semi-axis of the ellipse to the short semi-axis of the ellipse. The volume of the compression cavity is continuously decreasing, the sliding vane continuously presses the elastic restoring member, the compression amount of the elastic restoring member is continuously increasing, and the reaction force exerted by the elastic restoring member on the sliding vane is also continuously increasing. Furthermore, the force exerted by the sliding vane on the inner wall of the first cavity is also increased, thereby avoiding the separation of the sliding vane from the inner wall of the first cavity during the compression process and avoiding the generation of noise caused by the impact of the sliding vane on the inner wall of the first cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and particularly to a pump body structure and a compressor. Background Art

[0002] With the development of frequency conversion technology, variable frequency air conditioners are increasingly favored by users. Variable frequency air conditioners are generally equipped with frequency converters, and a control system that controls and adjusts the rotational speed of the compressor through the frequency converter, so that it is always in the best rotational speed state, thereby improving the energy efficiency ratio.

[0003] However, when traditional variable frequency air conditioners are in use, the compressor often makes noises similar to "ticking" or the refrigerant leaks from the compression chamber to the suction chamber, affecting the performance of the compressor. Summary of the Invention

[0004] Based on this, in view of the problem that when traditional variable frequency air conditioners are in use, the compressor often makes noises similar to "ticking" or the refrigerant leaks from the compression chamber to the suction chamber, affecting the performance of the compressor, a pump body structure and a compressor are proposed. When this pump body structure and compressor are in use, refrigerant leakage from the compression chamber to the suction chamber can be avoided, and at the same time, the noise is relatively low.

[0005] The specific technical solutions are as follows:

[0006] On the one hand, the present application relates to a pump body structure, including a cylinder, a rotating assembly, a sliding vane, and an elastic resetting member. The cylinder is provided with a first cavity having an elliptical cross-section and an air inlet hole communicating with the first cavity; the rotating assembly is rotatably inserted into the first cavity and is in contact and cooperation with a part of the inner wall of the first cavity. One end of the sliding vane is connected to the rotating assembly through the elastic resetting member, and the other end of the sliding vane abuts against the inner wall of the first cavity.

[0007] When the above pump body structure is in use, one end of the sliding vane is connected to the rotating assembly through the elastic resetting member, and the other end of the sliding vane abuts against the inner wall of the first cavity and divides the first cavity into a compression chamber and a suction chamber; during the compression process, the rotating assembly drives the sliding vane to rotate from the long semi-axis of the ellipse to the short semi-axis of the ellipse. At this time, the volume of the compression chamber is continuously decreasing, the sliding vane continuously presses the elastic resetting member, the compression amount of the elastic resetting member is continuously increasing, and the reaction force exerted by the elastic resetting member on the sliding vane is also continuously increasing. Furthermore, the force exerted by the sliding vane on the inner wall of the first cavity is also increased, so that separation of the sliding vane from the inner wall of the first cavity during the compression process can be avoided. In this way, noise generated by the impact of the sliding vane against the inner wall of the first cavity can be avoided, and at the same time, refrigerant leakage from the compression chamber to the suction chamber can be avoided.

[0008] The technical solutions are further described below:

[0009] In one embodiment, the rotating assembly includes a rotating shaft and a roller. The rotating shaft is rotatably inserted into the first cavity. The rotating shaft is provided with a rotating portion, and the rotating portion is disposed inside the first cavity. The roller is sleeved on the outer surface of the rotating portion and is in contact with a part of the inner wall of the first cavity. One end of the sliding piece is connected to the roller through the elastic reset member or passes through the roller and is connected to the rotating portion.

[0010] In one embodiment, the rotating portion is provided with a second cavity and a first through hole communicating with the second cavity. The roller is formed with a second through hole, and the second through hole communicates with the first through hole. The elastic reset member abuts between the sliding piece and the inner wall of the second cavity, and the sliding piece passes through the first through hole and the second through hole and abuts against the inner wall of the first cavity. During assembly, the elastic reset member abuts between the sliding piece and the inner wall of the second cavity, and the sliding piece passes through the first through hole and the second through hole and abuts against the inner wall of the first cavity. At this time, the sliding piece and the elastic reset member are disposed inside the rotating shaft and the roller. On the one hand, the installation of the sliding piece and the elastic reset member can be realized. On the other hand, it can be realized that the sliding piece can rotate with the rotation of the rotating shaft, and further, the acting force applied to the first cavity can be adjusted according to the structural change of the first cavity.

[0011] In one embodiment, the rotating portion is provided with a second cavity and a first through hole communicating with the second cavity. The roller is formed with a second through hole, and the second through hole communicates with the first through hole. The rotating portion is provided with a third through hole communicating with the first cavity. One end of the elastic reset member abuts against the sliding piece, and the other end of the elastic reset member passes through the third through hole and abuts against the inner wall of the roller, and the sliding piece passes through the first through hole and the second through hole and abuts against the inner wall of the first cavity. Thus, by abutting the elastic reset member against the inner wall of the roller, in addition to being able to realize the installation of the sliding piece and the elastic reset member in the foregoing embodiment and realizing that the sliding piece can rotate with the rotation of the rotating shaft and further adjust the acting force applied to the first cavity according to the structural change of the first cavity, the stability of the installation of the elastic reset member can also be improved.

[0012] In one embodiment, the rotating shaft further includes a long shaft section and a short shaft section. The rotating portion is disposed between the long shaft section and the short shaft section, and the long shaft section, the short shaft section and the rotating portion are coaxially arranged.

[0013] In one embodiment, the roller is an annular body, and the annular body is formed with the second through hole. Thus, on the one hand, it is convenient for the installation of the sliding piece. On the other hand, because the second through hole is equivalent to a "notch" in the roller, it is easier to make the roller and the rotating portion fit tightly during installation.

[0014] In one embodiment, the width H of the second through hole and the thickness L of the sliding vane satisfy: H = L. In this way, the sliding vane can fit with the inner wall of the second through hole, thereby restricting the moving direction of the sliding vane and avoiding the deviation of the sliding vane during movement.

[0015] In one embodiment, the cross-section of the first cavity is elliptical, and the major semi-axis of the ellipse is equal to the length of the sliding vane. At this time, whether in the compression process or the intake process, it is easier to ensure that the sliding vane abuts against the inner wall of the first cavity.

[0016] In one embodiment, and the major semi-axis length M of the ellipse, the outer ring radius R of the roller, and the distance K between the center of the ellipse and the center of the roller satisfy: M = R + K. In this way, the roller can always fit with the inner wall of the first cavity.

[0017] In one embodiment, the minor semi-axis length N of the ellipse and the major semi-axis length M of the ellipse satisfy: N = 9 / 10M. In this range, during the compression process, the acting force of the sliding vane on the inner wall of the first cavity can be further increased.

[0018] In one embodiment, the thickness of the roller is A, and the maximum length a1 and the minimum length a2 of the elastic reset member satisfy: a1 = M - A, a2 = R - K - A. At this time, whether in the compression process or the intake process, it can be ensured that the sliding vane abuts against the inner wall of the first cavity.

[0019] In one embodiment, the sliding vane is provided with an installation groove for installing the elastic reset member. In this way, during assembly, one end of the elastic reset member is fixed in the installation groove.

[0020] On the other hand, the present application also relates to a compressor, including the pump body structure in any of the above embodiments.

[0021] When the above compressor is in use, one end of the sliding vane is connected to the rotating assembly through the elastic reset member, and the other end of the sliding vane abuts against the inner wall of the first cavity and divides the first cavity into a compression cavity and a suction cavity; during the compression process, the rotating assembly drives the sliding vane to rotate from the major semi-axis of the ellipse to the minor semi-axis of the ellipse. At this time, the volume of the compression cavity is continuously decreasing, the sliding vane continuously presses the elastic reset member, the compression amount of the elastic reset member continuously increases, and the reaction force exerted by the elastic reset member on the sliding vane also continuously increases. Furthermore, the acting force of the sliding vane on the inner wall of the first cavity is also increased, thereby avoiding the separation of the sliding vane from the inner wall of the first cavity during the compression process. In this way, the impact noise generated by the sliding vane and the inner wall of the first cavity can be avoided, and at the same time, the leakage of the refrigerant from the compression cavity to the suction cavity can be avoided. Description of the Drawings

[0022] The accompanying drawings that form a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0024] In addition, the accompanying drawings are not drawn to a scale of 1:1, and the relative dimensions of the respective elements are only schematically drawn in the accompanying drawings and not necessarily drawn according to the actual scale.

[0025] Figure 1 Exploded schematic view of the pump body structure of an embodiment;

[0026] Figure 2 Schematic view of the pump body structure in one of the working states in an embodiment;

[0027] Figure 3 Schematic view of the pump body structure in another working state in an embodiment;

[0028] Figure 4 Structural intention of the rotating shaft in an embodiment;

[0029] Figure 5 Cross-sectional view of the rotating shaft in an embodiment;

[0030] Figure 6 Cross-sectional view of the roller in an embodiment;

[0031] Figure 7 Structural schematic view of the sliding vane in an embodiment;

[0032] Figure 8 Assembly schematic view of the sliding vane and the elastic resetting member in an embodiment.

[0033] Explanation of reference numerals:

[0034] 10. Pump body structure; 100. Cylinder; 110. First cavity; 120. Air inlet hole; 200. Rotating shaft; 210. Rotating part; 212. Second cavity; 214. First through hole; 216. Third through hole; 220. Long shaft section; 230. Short shaft section; 300. Roller; 310. Second through hole; 400. Sliding vane; 410. Installation groove; 500. Elastic resetting member. Detailed implementation manners

[0035] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following detailed description of the specific embodiments of the present invention will be given in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0038] As Figure 1 shown, in one embodiment, a pump body structure 10 is involved. When the pump body structure 10 is in use, it can prevent the refrigerant from leaking from the compression chamber to the suction chamber, and at the same time, the noise is relatively low.

[0039] Please refer to Figure 1 , specifically, the pump body structure 10 includes a cylinder 100, a rotating assembly, a sliding vane 400, and an elastic resetting member 500. The cylinder 100 is provided with a first cavity 110 having an elliptical cross-section and an air inlet hole 120 communicating with the first cavity 110. The rotating assembly is rotatably inserted into the first cavity 110 and is in contact and cooperation with a part of the inner wall of the first cavity 110. One end of the sliding vane 400 is connected to the rotating assembly through the elastic resetting member 500, and the other end of the sliding vane 400 abuts against the inner wall of the first cavity 110.

[0040] In use, one end of the sliding vane 400 is connected to the rotating assembly through an elastic return member 500, and the other end of the sliding vane 400 abuts against the inner wall of the first cavity 110 and divides the first cavity 110 into a compression cavity and a suction cavity; during the compression process, the rotating assembly drives the sliding vane 400 to rotate the sliding vane 400 from the long semi-axis of the ellipse to the short semi-axis of the ellipse. At this time, the volume of the compression cavity is continuously decreasing, the sliding vane 400 continuously squeezes the elastic return member 500, the compression amount of the elastic return member 500 continuously increases, and the reaction force exerted by the elastic return member 500 on the sliding vane 400 also continuously increases. Furthermore, the acting force of the sliding vane 400 on the inner wall of the first cavity 110 is also increased, thereby avoiding the separation of the sliding vane 400 from the inner wall of the first cavity 110 during the compression process. In this way, the collision between the sliding vane 400 and the inner wall of the first cavity 110 can be avoided to generate noise, and at the same time, the leakage of the refrigerant from the compression cavity to the suction cavity can be avoided.

[0041] Please refer to Figures 1 to 3 Furthermore, the rotating assembly includes a rotating shaft 200 and a roller 300. The rotating shaft 200 is rotatably inserted into the first cavity 110. The rotating shaft 200 is provided with a rotating portion 210. The roller 300 is disposed in the first cavity 110 and fits with the inner wall of the first cavity 110, and the roller 300 is sleeved on the outer surface of the rotating portion 210. In use, the rotating shaft 200 rotates, and at this time, the rotating portion 210 can drive the roller 300 to rotate in the first cavity 110.

[0042] Specifically, please refer to Figure 4 and Figure 5 , Figure 4 and Figure 5 show the structure of the rotating shaft 200 in one of the embodiments. Among them, the rotating shaft 200 further includes a long shaft section 220 and a short shaft section 230. The rotating portion 210 is disposed between the long shaft section 220 and the short shaft section 230. The long shaft section 220, the short shaft section 230, and the rotating portion 210 are coaxially arranged. Compared with the traditional rotating shaft structure, in this embodiment, the rotating shaft 200 does not have an eccentric structure.

[0043] Please refer to Figure 2 and Figure 3 , Figure 2 and Figure 3 show the states of the sliding vane 400 at the two long semi-axes of the ellipse respectively. At this time, the rotating portion 210 drives the roller 300 to rotate, and the sliding vane 400 rotates from Figure 2 state to Figure 3State, and the sliding vane 400 continues to rotate along the major semi-axis of one ellipse towards the major semi-axis of the other ellipse (the sliding vane 400 rotates clockwise at this time). At this time, the volume of the compression chamber is continuously decreasing, the sliding vane 400 continuously squeezes the elastic resetting member 500, the compression amount of the elastic resetting member 500 continuously increases, and the reaction force exerted by the elastic resetting member 500 on the sliding vane 400 also continuously increases. Furthermore, the acting force of the sliding vane 400 on the inner wall of the first cavity 110 is also increased, thereby avoiding the separation of the sliding vane 400 from the inner wall of the first cavity 110 during the compression process. In this way, the impact noise generated by the sliding vane 400 and the inner wall of the first cavity 110 can be avoided, and at the same time, the leakage of the refrigerant along the compression chamber to the suction chamber can be avoided, ensuring the performance of the compressor.

[0044] Furthermore, the cross-section of the first cavity 110 is elliptical, and the major semi-axis M of the ellipse is equal to the length of the sliding vane 400. At this time, whether during the compression process or the intake process of the sliding vane 400, it is easier to ensure that the sliding vane 400 abuts against the inner wall of the first cavity 110.

[0045] Furthermore, the major semi-axis length M of the ellipse, the outer radius R of the roller 300, and the distance K between the center of the ellipse and the center of the roller 300 satisfy: M = R + K. In this way, the roller 300 can always fit with the inner wall of the first cavity 110. In this way, the separation of the sliding vane 400 from the first cavity 110 can be avoided, the impact noise generated by the sliding vane 400 and the inner wall of the first cavity 110 can be avoided, and at the same time, the leakage of the refrigerant along the compression chamber to the suction chamber can be avoided, ensuring the performance of the compressor.

[0046] Furthermore, the thickness of the roller is A, the maximum length a1 of the elastic resetting member and the shortest length a2 of the elastic resetting member satisfy: a1 = M - A, a2 = R - K - A. At this time, whether during the compression process or the intake process of the sliding vane 400, it can be ensured that the sliding vane 400 abuts against the inner wall of the first cavity 110. The thickness of the roller 300 is as Figure 6 marked.

[0047] Specifically, the minor semi-axis length N of the ellipse and the major semi-axis length M of the ellipse satisfy: N = 9 / 10M. In this way, within this range, during the compression process, the acting force of the sliding vane 400 on the inner wall of the first cavity 110 can be further improved, thereby avoiding the impact noise generated by the sliding vane 400 and the inner wall of the first cavity 110, and at the same time, the leakage of the refrigerant along the compression chamber to the suction chamber can be avoided, ensuring the performance of the compressor.

[0048] Next, the assembly among the roller 300, the rotating shaft 200, and the sliding vane 400 will be specifically described in combination with the embodiments.

[0049] In one embodiment, the rotating part 210 is provided with a second cavity 212 and a first through hole 214 communicating with the second cavity 212. Please refer to Figure 6 , the roller 300 is formed with a second through hole 310, and the second through hole 310 communicates with the first through hole 214. During assembly, the elastic reset member 500 abuts between the sliding piece 400 and the inner wall of the second cavity 212, and the sliding piece 400 passes through the first through hole 214 and the second through hole 310 to abut against the inner wall of the first cavity 110. At this time, the sliding piece 400 and the elastic reset member 500 are arranged inside the rotating shaft 200 and the roller 300. On the one hand, the installation of the sliding piece 400 and the elastic reset member 500 can be realized. On the other hand, it can be realized that the sliding piece 400 can rotate with the rotation of the rotating shaft 200, and further, the acting force applied to the first cavity 110 can be adjusted according to the structural change of the first cavity 110.

[0050] Please refer to Figures 3 to 5 , in another embodiment, the rotating part 210 is provided with a third through hole 216 communicating with the first cavity 110. One end of the elastic reset member 500 abuts against the sliding piece 400, and the other end of the elastic reset member 500 passes through the third through hole 216 to abut against the inner wall of the roller 300, and the sliding piece 400 passes through the first through hole 214 and the second through hole 310 to abut against the inner wall of the first cavity 110. In this way, by abutting the elastic reset member 500 against the inner wall of the roller 300, in addition to being able to realize the installation of the sliding piece 400 and the elastic reset member 500 in the foregoing embodiment and realizing that the sliding piece 400 can rotate with the rotation of the rotating shaft 200 and further adjust the acting force applied to the first cavity 110 according to the structural change of the first cavity 110, the stability of the installation of the elastic reset member 500 can also be improved.

[0051] Optionally, the elastic reset member 500 can be a spring or a rubber part. Please refer to Figure 2 , in this embodiment, the elastic reset member 500 is a spring.

[0052] Furthermore, please refer to Figure 7 , the sliding piece 400 is provided with an installation groove 410 for installing the elastic reset member 500. In this way, during assembly, one end of the elastic reset member 500 is fixed in the installation groove 410. Specifically, the number of the installation grooves 410 corresponds to the number of the elastic reset members 500 one by one. Of course, in other embodiments, the elastic reset member can also be fixed by other fixed connection methods, such as welding, riveting and bonding.

[0053] Please refer to Figure 7 and Figure 8, in this embodiment, the number of the installation grooves 410 and the elastic reset members 500 is both six. Among them, three are arranged at intervals to form an installation groove group, and two installation groove groups are arranged at intervals. One elastic reset member 500 corresponds to one installation groove 410. Please refer to the figure. The number of corresponding first through holes 214 is two, and the two first through holes 214 are arranged at intervals. Of course, the number of the installation grooves 410 and the elastic reset members 500 can also be six or more than six, and the specific number is set according to the installation needs. The formation method of the installation groove 410 can be to dig at the other end of the sliding piece 400, or to provide a convex structure at the other end of the sliding piece 400, and the installation groove 410 is opened on the convex structure. Please refer to Figure 7 , in this embodiment, a convex structure is provided at one end of the sliding piece 400, and an installation groove 410 is opened on the convex structure. When the sliding piece 400 slides, the convex structure can also play a limiting role.

[0054] Please refer to Figure 6 , the roller 300 is an annular body, and a second through hole 310 is formed in the annular body; in this way, on the one hand, it is convenient to install the sliding piece 400, and on the other hand, because the second through hole 310 is equivalent to a "notch" in the roller 300, the roller 300 and the rotating part 210 can be more easily and tightly fitted during installation. In other embodiments, the second through hole 310 can also be a through hole opened on the surface of the roller 300, and the shape of the through hole is adapted to the shape of the sliding piece 400, which can be circular, elliptical or diamond-shaped in cross section, and the specific shape is set according to the needs, and will not be elaborated here one by one.

[0055] Specifically, in one of the embodiments, the width H of the second through hole 310 and the thickness L of the sliding piece 400 satisfy: H = L. In this way, the sliding piece 400 can be attached to the inner wall of the second through hole 310, thereby restricting the moving direction of the sliding piece 400 and avoiding the sliding piece 400 from shifting during movement.

[0056] On the other hand, the present application also relates to a compressor, including the pump body structure 10 in any of the above embodiments.

[0057] When the above compressor is in use, one end of the sliding vane 400 is connected to the roller 300 through an elastic resetting member 500, and the other end of the sliding vane 400 abuts against the inner wall of the first cavity 110 and divides the first cavity 110 into a compression cavity and a suction cavity; during the compression process, the rotating part 210 drives the roller 300 to rotate, and the sliding vane 400 rotates from the long semi-axis of the ellipse to the short semi-axis of the ellipse. At this time, the volume of the compression cavity is continuously decreasing, the sliding vane 400 continuously presses the elastic resetting member 500, the compression amount of the elastic resetting member 500 continuously increases, and the reaction force exerted by the elastic resetting member 500 on the sliding vane 400 also continuously increases, thereby increasing the acting force of the sliding vane 400 on the inner wall of the first cavity 110. Therefore, it can be avoided that the sliding vane 400 is separated from the inner wall of the first cavity 110 during the compression process, so that the noise generated by the impact of the sliding vane 400 and the inner wall of the first cavity 110 can be avoided, and at the same time, the leakage of the refrigerant from the compression cavity to the suction cavity can be avoided.

[0058] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0059] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0060] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0061] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0062] The above embodiments only express several implementation manners of the present invention, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent shall be subject to the appended claims.

Claims

1. A pump body structure, characterized in that, Comprising: A cylinder, the cylinder being provided with a first cavity having an elliptical cross-section and an air inlet communicating with the first cavity; A rotating assembly, the rotating assembly being rotatably inserted into the first cavity and being in contact and cooperation with a part of the inner wall of the first cavity; A sliding vane and an elastic reset member, one end of the sliding vane being connected to the rotating assembly through the elastic reset member, and the other end of the sliding vane abutting against the inner wall of the first cavity and dividing the first cavity into a compression cavity and a suction cavity; The rotating assembly includes a rotating shaft and rollers, the rotating shaft being rotatably inserted into the first cavity, the rotating shaft being provided with a rotating portion, the rollers being sleeved on the outer surface of the rotating portion and being in fit with a part of the inner wall of the first cavity, and one end of the sliding vane being connected to the rollers through the elastic reset member or passing through the rollers and being connected to the rotating portion; The cross-section of the first cavity is elliptical, the major axis of the ellipse is equal to the length of the sliding vane, and the major axis length M of the ellipse, the outer ring radius R of the rollers, and the distance K between the center of the ellipse and the center of the rollers satisfy: M = R + K; the minor axis length N of the ellipse and the major axis length M of the ellipse satisfy: N = 9 / 10M; the thickness of the rollers is A, the maximum length a1 of the elastic reset member and the minimum length a2 of the elastic reset member satisfy: a1 = M - A, a2 = R - K - A.

2. The pump body structure according to claim 1, characterized in that, The rotating portion is provided with a second cavity and a first through hole communicating with the second cavity, the rollers are formed with a second through hole, the second through hole is in communication with the first through hole, the elastic reset member abuts between the sliding vane and the inner wall of the second cavity, and the sliding vane passes through the first through hole and the second through hole and abuts against the inner wall of the first cavity.

3. The pump body structure according to claim 1, wherein, The rotating portion is provided with a second cavity and a first through hole communicating with the second cavity, the rollers are formed with a second through hole, the second through hole is in communication with the first through hole, the rotating portion is provided with a third through hole communicating with the first cavity, one end of the elastic reset member abuts against the sliding vane, the other end of the elastic reset member passes through the third through hole and abuts against the inner wall of the rollers, and the sliding vane passes through the first through hole and the second through hole and abuts against the inner wall of the first cavity.

4. The pump body structure according to claim 3, characterized in that, The rotating shaft further includes a long shaft section and a short shaft section, the rotating portion is disposed between the long shaft section and the short shaft section, and the long shaft section, the short shaft section, and the rotating portion are coaxially disposed.

5. The pump body structure according to claim 3, characterized in that, The rollers are annular bodies, and the annular bodies are formed with the second through holes.

6. The pump body structure according to claim 5, characterized in that, The width H of the second through hole and the thickness L of the sliding vane satisfy: H = L.

7. The pump body structure according to claim 1, characterized in that, The elastic reset member is a spring.

8. The pump body structure according to claim 1, characterized in that, The elastic reset member is a rubber member.

9. The pump body structure according to claim 1, characterized in that The sliding vane is provided with a mounting groove for mounting the elastic reset member.

10. A compressor, characterized in that, Including the pump body structure according to any one of claims 1 to 9.

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