A pump body structure and a compressor

Abstract

The present disclosure provides a pump body structure and a compressor. The pump body structure includes a stationary scroll plate and a moving scroll plate. The stationary scroll plate includes stationary scroll teeth and a first support portion. The stationary scroll teeth are located radially inside the first support portion. The moving scroll plate includes moving scroll teeth and a second support portion. The moving scroll teeth are located radially inside the second support portion. The first support portion includes a first support surface, and the second support portion includes a second support surface. The first support surface and the second support surface can be in surface contact. A first texture structure is provided on the first support surface. The first texture structure includes a plurality of first grooves, and the first grooves can store lubricating oil. According to the present disclosure, the lubricating oil flowing into the end face of the scroll plate can be stored by the lubricating oil stored in the first texture structure, solving the problem that the lubrication of the pump body overly relies on the oil supply mechanism, resulting in oil shortage and wear at the end face of the pump body.

Description

Technical Field

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

[0002] Scroll compressors have been widely used in fields such as refrigeration and air conditioning, and power engineering due to their good performance such as low energy consumption, high efficiency, and low noise. The main components of a scroll compressor include a moving scroll disk, a stationary scroll disk, a bracket, a crankshaft, and an anti-rotation mechanism. The moving scroll disk fits with the stationary scroll disk under the drive of the crankshaft to form multiple compression chambers, thereby achieving the purpose of gas suction, compression, and exhaust.

[0003] In traditional scroll compressors, a part of the lubricating oil coming from the back pressure chamber enters the suction chamber through the pressure difference to lubricate the pump body, and another part of the lubricating oil enters the medium-pressure oil groove, and lubricates the end face of the pump body through the translational movement of the moving disk, so that the pump body can operate normally. During actual operation, due to the back pressure of the moving disk, the moving and stationary scroll disks are closely attached, and it is difficult for the lubricating oil to flow smoothly into the end face of the pump body for lubrication, resulting in easy oil shortage and wear at the end face of the pump body (especially at the support surface position); under harsh working conditions, the compressor has oil shortage even in the back pressure chamber or in the high-pressure chamber, making the problem of oil shortage and wear at the end face of the pump body more serious. Moreover, when the compressor is actually operating, the heat generated by the friction of the closely attached moving and stationary scroll disks during long-term high-speed operation is difficult to dissipate, resulting in a decline in the performance of the pump body.

[0004] Since in the scroll compressor in the prior art, due to the back pressure of the moving disk, the moving and stationary scroll disks are closely attached, and it is difficult for the lubricating oil to flow smoothly into the end face of the pump body for lubrication, resulting in technical problems such as easy oil shortage and wear at the end face of the pump body (especially at the support surface position), the present disclosure has studied and designed a pump body structure and a compressor. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present disclosure is to overcome the defect that in the scroll compressor in the prior art, due to the back pressure of the moving disk, the moving and stationary scroll disks are closely attached, and it is difficult for the lubricating oil to flow smoothly into the end face of the pump body for lubrication, resulting in easy oil shortage and wear at the end face of the pump body (especially at the support surface position), so as to provide a pump body structure and a compressor.

[0006] To solve the above problems, the present disclosure provides a pump body structure, which includes:

[0007] A stationary scroll disk and a rotating scroll disk, the stationary scroll disk includes stationary scroll teeth and a first support portion, the stationary scroll teeth are located radially inside the first support portion, the rotating scroll disk includes rotating scroll teeth and a second support portion, the rotating scroll teeth are located radially inside the second support portion, the first support portion includes a first support surface, the second support portion includes a second support surface, the first support surface and the second support surface can be in surface contact, a first texture structure is provided on the first support surface, the first texture structure includes a plurality of first grooves, and the first grooves can store lubricating oil.

[0008] In some embodiments, an oil groove is further formed on the first support surface, the first texture structure is located radially outside the oil groove, and the first texture structure can introduce oil from the oil groove into the first grooves.

[0009] In some embodiments, a bracket is further included, a back pressure chamber is formed between the bracket and the rotating scroll disk, the oil groove includes a first oil groove, and the first oil groove can communicate with the back pressure chamber to suck lubricating oil from the back pressure chamber;

[0010] There is a spaced channel between the rotating scroll disk and the bracket in the radial direction, one end of the spaced channel communicates with the first oil groove and the other end communicates with the back pressure chamber, so that the first oil groove can suck lubricating oil from the back pressure chamber through the spaced channel.

[0011] In some embodiments, the oil groove further includes a second oil groove, the second oil groove is located radially inside the first oil groove, one end of the second oil groove communicates with the first oil groove to introduce oil from the first oil groove, and the first texture structure is located between the first oil groove and the second oil groove, so that the first texture structure can introduce oil from the first oil groove and / or the second oil groove.

[0012] In some embodiments, the first oil groove extends circumferentially along the stationary scroll teeth, the second oil groove also extends circumferentially along the stationary scroll teeth, and the first texture structure also extends circumferentially along the first oil groove.

[0013] In some embodiments, the cross-section of the first groove is a polygonal structure, the polygonal structure includes at least one of a triangle, a square and a rhombus; and / or,

[0014] A plurality of the first grooves are arranged in a row along the radial direction of the stationary scroll disk, and the central angle α between adjacent two rows of the first grooves is 1° to 7°.

[0015] In some embodiments, the cross-section of the first groove is a square structure with a side length of a;

[0016] The shortest distance L1 between the first groove and the radial outer edge of the first support surface is ≥ 1.5a; the distance L2 between two adjacent first grooves is ≥ 2.3a;

[0017] The shortest distance L3 between the first groove and the oil groove is ≥ 2a.

[0018] In some embodiments, a second texture structure is provided on the first support surface. The second texture structure includes a plurality of second grooves, and the second texture structure can introduce oil from the oil groove into the second grooves, and the second grooves can store lubricating oil; the second texture structure is located radially inside the oil groove.

[0019] In some embodiments, the cross-section of the second groove is an arc structure, including at least one of an ellipse and a circle; and / or, when the oil groove includes a second oil groove, the second texture structure is connected and communicated with the second oil groove to suck oil from the second oil groove.

[0020] In some embodiments, the cross-section of the second groove is circular, and its diameter is d;

[0021] The shortest distance L6 between the second groove and the oil groove is ≥ 2d;

[0022] The first support surface has a radial inner edge, and there is a compression cavity radially inside the radial inner edge. A static disk seal line is provided on the first support surface at a preset distance from the radial inner edge, and the shortest distance L5 between the second groove and the static disk seal line is ≥ 2.2d;

[0023] The distance L4 between two adjacent second grooves is ≥ d.

[0024] In some embodiments, fins are further provided in the oil groove. The fins are a continuous structure and extend in the oil groove, or the fins are a discontinuous structure and extend intermittently along the extending direction of the oil groove.

[0025] In some embodiments, when the oil groove includes a second oil groove, the fins are provided in the second oil groove; and / or, the length b of the fins satisfies 3mm ≤ b ≤ 15mm, the width of the fins is within 0.5mm to 1mm, the fin height h of the fins ≥ 0.5m, and the fin height h is less than the depth of the oil groove.

[0026] The present disclosure also provides a compressor, which includes the pump body structure described in any one of the preceding items.

[0027] A pump body structure and a compressor provided by the present disclosure have the following beneficial effects:

[0028] 1. The present disclosure solves the problem of oil shortage and wear that easily occurs on the end face of the pump body due to the back pressure by providing a first texture structure on the first support surface of the stationary scroll plate that contacts the moving scroll plate surface. The first texture structure includes a plurality of first grooves that can store lubricating oil, enabling the lubricating oil to flow smoothly into the end face of the pump body for lubrication (which can be called the drainage effect) when the stationary and moving scroll plates are closely attached. The lubricating oil stored in the first texture structure can store the lubricating oil flowing into the end face of the scroll plate, solving the problem that the lubrication of the pump body overly relies on the oil supply mechanism. When the compressor lacks oil inside under harsh working conditions, it first causes oil shortage and wear on the end face of the pump body. The lubricating oil stored in the first texture structure can dissipate heat from the pump body running at high speed.

[0029] 2. The present disclosure also provides an oil groove structure on the first support surface, which can suck oil from structures such as the back pressure chamber and transport the oil to the first texture structure with a storage structure, realizing the supply and transportation of the lubricating oil source. Since the first grooves of the first texture structure have an oil storage function, it can solve the problem of being unable to lubricate the end face of the pump body when there is no oil supply mechanism. The present disclosure also provides a second texture structure on the radial inner side of the oil groove structure. The second grooves in the second texture structure can also store oil. The second texture structure located on the radial inner side of the oil groove can form an oil seal through the oil, effectively sealing the inner side near the stationary scroll plate and solving the problem of gas leakage in the compression chamber. By providing ribs in the oil groove, it can effectively disturb the lubricating oil, play a role in cooling and dissipating heat of the lubricating oil, and thus play a role in cooling and dissipating heat of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is an internal cross-sectional view of the pump body structure of the compressor of the present disclosure;

[0031] Figure 2 is of the present disclosure Figure 1 is a bottom view structure diagram of the stationary scroll plate in;

[0032] Figure 3a is Figure 2 a partial enlarged view of part I in;

[0033] Figure 3b is Figure 3a a partial enlarged view of part B in;

[0034] Figure 3c is Figure 2 a partial enlarged view of part II in;

[0035] Figure 3d is Figure 2 a partial enlarged view of part III in;

[0036] Figure 4 The A-A sectional view of Figure 2 ;

[0037] Figure 5 The enlarged partial view of part IV in Figure 4 ;

[0038] Figure 6 The upward view structure diagram of the stationary scroll plate in the alternative embodiment;

[0039] Figure 7 The enlarged partial view of part V in Figure 6 ;

[0040] The reference numerals are shown as:

[0041] 1, back pressure chamber; 2, moving scroll plate; 21, moving scroll teeth; 22, second support part; 23, second support surface; 3, stationary scroll plate; 31, stationary scroll teeth; 32, first support part; 33, first support surface; 4, second texture structure; 41, second groove; 5, oil groove; 51, first oil groove; 52, second oil groove; 6, first texture structure; 61, first groove; 7, outer boundary of medium-pressure oil groove; 8, radial outer edge; 9, stationary disk seal line; 10, inner boundary of medium-pressure oil groove; 11, bracket; 12, spaced channel; 13, rib. Detailed implementation manners

[0042] As Figures 1-7 shown, the present disclosure provides a pump body structure, which includes:

[0043] A stationary scroll plate 3 and a moving scroll plate 2, the stationary scroll plate 3 includes stationary scroll teeth 31 and a first support part 32, the stationary scroll teeth 31 are located radially inside the first support part 32, the moving scroll plate 2 includes moving scroll teeth 21 and a second support part 22, the moving scroll teeth 21 are located radially inside the second support part 22, the first support part 32 includes a first support surface 33, the second support part 22 includes a second support surface 23, the first support surface 33 and the second support surface 23 can be in surface contact, a first texture structure 6 is arranged on the first support surface 33, the first texture structure 6 includes a plurality of first grooves 61, and the first grooves 61 can store lubricating oil.

[0044] The present disclosure provides a first texture structure disposed on a first support surface of a stationary scroll plate for contacting a moving scroll plate surface. The first texture structure includes a plurality of first grooves that can store lubricating oil, enabling the lubricating oil to flow smoothly into the pump body end face for lubrication (which can be referred to as a drainage effect) when the stationary and moving scroll plates are closely attached, thus solving the problem of oil shortage and wear that easily occur on the pump body end face due to the back pressure. The lubricating oil stored in the first texture structure can store the lubricating oil flowing into the scroll plate end face, solving the problem that the pump body lubrication overly relies on the oil supply mechanism. When the compressor lacks oil inside under harsh working conditions, it first causes oil shortage and wear on the pump body end face. The lubricating oil stored in the first texture structure can dissipate heat from the pump body running at high speed.

[0045] The setting of the micro-grooves on the outer support surface of the stationary scroll plate increases the lubrication effect of the pump body end face, solving the problem of easy oil shortage and wear on the end face caused by the close attachment of the stationary and moving scroll plates during operation. At the same time, the lubricating oil stored (or adhered) in the micro-grooves can reduce the pump body's dependence on the oil supply passage. When there is an oil shortage inside the compression chamber, it can still lubricate the pump body end face to a certain extent, thus reducing the wear of the end face caused by oil shortage. The micro-grooves near the seal line are different from those on the outer support surface of the stationary scroll plate. When the micro-texture with a smooth edge shape is filled with oil, it greatly improves the sealing effect of the pump body.

[0046] The present disclosure solves the following problems: 1. In a conventional scroll compressor, due to the back pressure on the moving plate, the stationary and moving scroll plates are closely attached, making it difficult for the lubricating oil to flow smoothly into the pump body end face for lubrication, resulting in easy oil shortage and wear on the pump body end face (especially at the support surface position).

[0047] 2. The pump body lubrication overly relies on the oil supply mechanism. When there is an oil shortage inside the compressor under harsh working conditions, it first causes the problem of oil shortage and wear on the pump body end face.

[0048] 3. The closely attached stationary and moving scroll plates are difficult to dissipate heat during long-term high-speed operation, easily leading to a decline in the performance of the compressor.

[0049] 4. Leakage problems are likely to occur in the part of the stationary scroll plate near the seal line.

[0050] It has the following beneficial effects:

[0051] 1. The scroll compressor of the present disclosure can enable the lubricating oil to flow smoothly into the pump body end face for lubrication (which can be referred to as a drainage effect) when the stationary and moving scroll plates are closely attached.

[0052] 2. The scroll compressor of the present disclosure can store the lubricating oil flowing into the scroll plate end face, reducing wear when the oil supply is insufficient.

[0053] 3. The scroll compressor of the present disclosure can dissipate heat from the pump body operating at high speed;

[0054] 4. The scroll compressor of the present disclosure can improve the sealing performance of the pump body.

[0055] In some embodiments, an oil groove 5 is further formed on the first support surface 33, the first texture structure 6 is located radially outside the oil groove 5, and the first texture structure 6 can introduce oil from the oil groove 5 into the first groove 61. The present disclosure can also suck oil from structures such as the back pressure chamber through the oil groove structure provided on the first support surface, and transport the oil to the first texture structure with a storage structure, realizing the functions of providing the source of lubricating oil and transporting it. Since the first groove of the first texture structure has an oil storage function, it can solve the problem that the end face of the pump body cannot be lubricated when there is no oil supply mechanism.

[0056] In some embodiments, a bracket 11 is further included. A back pressure chamber 1 is formed between the bracket 11 and the moving scroll disk 2. The oil groove 5 includes a first oil groove 51, and the first oil groove 51 can communicate with the back pressure chamber 1 to suck lubricating oil from the back pressure chamber 1;

[0057] There is a spaced channel 12 between the moving scroll disk 2 and the bracket 11 in the radial direction. One end of the spaced channel 12 communicates with the first oil groove 5 and the other end communicates with the back pressure chamber 1, so that the first oil groove 51 can suck lubricating oil from the back pressure chamber 1 through the spaced channel 12.

[0058] This is a preferred structural form of the present disclosure, that is, the first oil groove sucks oil from the back pressure chamber between the bracket and the moving scroll disk, and the oil is communicated through the spaced channel between the moving scroll disk and the bracket to complete the function of introducing the back pressure chamber into the first oil groove. The first oil groove then introduces the oil into the first texture structure for storage, so as to effectively prevent the situation where oil cannot be introduced from the outside into the mating end face when the end faces of the stationary scroll disk and the moving scroll disk are tightly attached, resulting in wear. The present disclosure directly provides lubricating oil to the end face in a timely manner through the first texture structure formed in the first support surface of the stationary scroll disk, effectively solving the problem of large wear on the end face of the pump body.

[0059] In some embodiments, the oil sump 5 further includes a second oil sump 52 which is located radially inside the first oil sump 51. One end of the second oil sump 52 communicates with the first oil sump 51 to introduce oil from the first oil sump 51. The first texture structure 6 is located between the first oil sump 51 and the second oil sump 52, so that the first texture structure 6 can introduce oil from the first oil sump 51 and / or the second oil sump 52. This is a further preferred structural form of the oil sump of the present disclosure, that is, it includes two oil sumps in the radial direction. The second oil sump located radially inside can suck oil from the first oil sump. The first oil sump sucks oil from the back pressure chamber. The second oil sump can supply oil to the first texture structure from the radial inside, and the second oil sump can supply oil to the second texture structure located at the innermost radial side.

[0060] In some embodiments, the first oil sump 51 extends circumferentially along the stationary scroll tooth 31, the second oil sump 52 also extends circumferentially along the stationary scroll tooth 31, and the first texture structure 6 also extends circumferentially along the first oil sump 51. This is a preferred arrangement form of the first oil sump and the second oil sump of the present disclosure, that is, extending along the direction of the stationary scroll tooth can enable the first texture structure to also extend circumferentially along the direction of the oil sump, and can effectively lubricate the first support surface on the outer periphery of the stationary scroll tooth.

[0061] In some embodiments, the cross-section of the first groove 61 is a polygonal structure, and the polygonal structure includes at least one of a triangle, a square, and a rhombus; and / or,

[0062] A plurality of the first grooves 61 are arranged in a row along the radial direction of the stationary scroll disk 3, and the central angle α between adjacent two rows of the first grooves 61 is 1° - 7°.

[0063] This is a preferred structural form of the first groove of the present disclosure. Through the polygonal structure, the outer side can be an irregular shape, that is, a figure with edges and corners. The lubrication effect of the edge and corner type is good, which can improve the lubrication effect of the first texture structure on the end face of the pump body; α = 1° - 7° can enable the first grooves to be evenly distributed on the first support surface along the circumferential direction, making the lubrication more uniform and sufficient.

[0064] In some embodiments, the cross-section of the first groove is a square structure with a side length of a;

[0065] The shortest distance L1 between the first groove 61 and the radially outer edge 8 of the first support surface 33 is ≥ 1.5a; the distance L2 between adjacent two first grooves 61 is ≥ 2.3a;

[0066] The shortest distance L3 between the first groove 61 and the oil sump 5 is ≥ 2a.

[0067] This is a further preferred structure and dimensional form of the first groove in the first texture structure of the present disclosure. The shortest distance L1 between the first groove 61 and the radial outer edge 8 of the first support surface 33 being ≥ 1.5a can ensure that the lubricating oil in the first groove will not easily leak out radially to the outside. The spacing L2 between two adjacent first grooves 61 being ≥ 2.3a can prevent the first grooves from being set too densely, resulting in oil overflow. The shortest distance L3 between the first groove 61 and the oil groove 5 being ≥ 2a can effectively ensure that oil is sucked from the oil groove, but will not suck in too much oil, causing accumulation or overflow.

[0068] As Figure 1 shown, during operation, the moving scroll 2 is tightly attached to the stationary scroll 3 under the action of the axial force in the back pressure chamber 1, and the contact part between the two is the support surface.

[0069] The disclosed solution of this patent provides a scroll compressor with a self-lubricating and heat-dissipating structure. Micro-grooves are provided on the inner and outer support surfaces of the stationary scroll ( Figure 2 ). The shape of the micro-grooves on its outer support surface is not limited to that shown in the figure (square), and can be irregular shapes such as rhombus, triangle, etc., and various modified forms that can be easily conceived by those skilled in the art. For the convenience of display, the micro-grooves on the outer support surface in the figure are taken as an example of a square. The side length a of the micro-groove is 0.5 - 2 mm; the groove depth H is 0.1 - 2 mm.

[0070] Preferably, a = 0.5 - 2 mm, and the groove depth H1 of the first groove 61 is 0.1 - 2 mm.

[0071] In some embodiments, a second texture structure 4 is provided on the first support surface 33. The second texture structure 4 includes a plurality of second grooves 41, and the second texture structure 4 can introduce oil from the oil groove 5 into the second grooves 41, and the second grooves 41 can store lubricating oil. The second texture structure 4 is located radially inside the oil groove 5. The present disclosure also provides a second texture structure provided radially inside the oil groove structure. The second grooves in the second texture structure can also play a role in storing oil. The second texture structure located radially inside the oil groove can form an oil seal through the oil, effectively sealing the area near the inner side of the stationary scroll, and solving the problem of gas leakage in the compression chamber. The second groove structure can also play a role in lubricating the end face where the stationary scroll and the moving scroll are in contact, but its sealing effect is better.

[0072] In some embodiments, the cross-section of the second groove 41 is an arc-shaped structure, including at least one of an oval and a circle; and / or when the oil groove 5 includes a second oil groove 52, the second texture structure 4 is connected to and communicates with the second oil groove 52 to suck oil from the second oil groove 52. This is a preferred structural form of the second groove of the present disclosure. The inner side is a smooth figure without sharp corners such as a circle or an arc. The sealing effect of the smooth type is good, which improves the sealing effect of the second groove. The second groove is mainly supplied with oil through the second oil groove.

[0073] In some embodiments, the cross-section of the second groove 41 is circular, and its diameter is d;

[0074] The shortest distance L6 between the second groove 41 and the oil groove 5 is ≥ 2d;

[0075] The first support surface 33 has a radially inner edge, and a compression cavity is provided radially inside the radially inner edge. A static disk seal line 9 is provided on the first support surface 33 at a preset distance from the radially inner edge, and the shortest distance L5 between the second groove 41 and the static disk seal line 9 is ≥ 2.2d;

[0076] The spacing L4 between two adjacent second grooves 41 is ≥ d.

[0077] This is a further preferred structure and dimensional form of the second groove in the second texture structure of the present disclosure. The shortest distance L5 ≥ 2.2d between the second groove 41 and the static disk seal line 9 can ensure that the lubricating oil in the second groove will not easily leak out radially inside. The spacing L4 ≥ d between two adjacent first grooves 61 can prevent the phenomenon of oil overflow caused by the first grooves being set too densely; the shortest distance L6 ≥ 2d between the second groove 41 and the oil groove 5 can effectively ensure sucking oil from the oil groove, but will not suck too much oil resulting in accumulation or overflow.

[0078] The shape of the micro-grooves on the inner support surface is not limited to that shown in the figure (hemispherical), and can be smooth shapes such as oval and arc, and various different forms of modifications that can be easily conceived by those skilled in the art. Taking the circular shape as an example for the micro-grooves on the inner support surface, the equivalent diameter d of the micro-groove opening is 0.2 - 2.5 mm, and the groove depth H2 is 0.1 - 3 mm.

[0079] As shown in Figure 3, the distance L5 between the micro-groove and the static disk sealing line is L5≥2.2d, and the distance L6 between the micro-groove and the inner boundary of the medium-pressure oil groove is L6≥2d; the distance L3 between the micro-groove and the outer boundary of the medium-pressure oil groove is L3≥2a, and the distance L1 between the micro-groove and the boundary of the outer support surface of the static scroll disk is L1≥1.5a; when the micro-grooves are arranged radially, the distance between two adjacent micro-textures is L2≥2.3a, L4≥a; the micro-grooves are evenly distributed and offset by an angle α, and α is taken as 1° to 7°.

[0080] Preferably, the diameter d = 0.5 to 2.5 mm, and the groove depth H2 is 0.1 to 2 mm.

[0081] In some embodiments, fins 13 are further provided in the oil groove 5. The fins 13 are of a continuous structure and extend in the oil groove 5, or the fins 13 are of an intermittent structure and extend intermittently along the extension direction of the oil groove 5. By providing the fins in the oil groove, the present disclosure can effectively disturb the lubricating oil, play a role in cooling and dissipating heat of the lubricating oil, and thus play a role in cooling the pump body.

[0082] As Figure 3a shown, as the support surface area gradually decreases, the number of micro-grooves also gradually decreases.

[0083] When the compressor is working, the flow direction of the lubricating oil near the sealing line: the lubricating oil in the medium-pressure chamber first flows into the first micro-groove ①, and after the first micro-groove is filled, it flows to the second micro-groove ②, and so on, thus playing a role in drainage and sealing.

[0084] The setting of the micro-grooves on the outer support surface of the static scroll disk increases the lubrication effect of the pump body end face, and solves the problem of easy oil shortage and wear of the end face caused by the tight fit of the moving and static scroll disks during operation; at the same time, the lubricating oil stored (or adhered) in the micro-grooves can reduce the dependence of the pump body on the oil supply passage. When there is an oil shortage in the compression chamber, it can still lubricate the pump body end face to a certain extent, thereby reducing the wear of the end face caused by oil shortage. The micro-grooves near the sealing line are different from those on the outer support surface of the static scroll disk. When the micro-texture with a smooth edge shape is filled with oil, the sealing effect of the pump body is greatly improved.

[0085] Fins are arranged in the medium-pressure oil groove of the static scroll disk. When the compressor is running, the oil in the medium-pressure oil groove flows through the fins, generating disturbance, thereby playing a role in cooling and dissipating heat.

[0086] In some embodiments, when the oil tank 5 includes a second oil tank 52, the fins 13 are disposed in the second oil tank 52; and / or, the length b of the fins 13 satisfies 3 mm ≤ b ≤ 15 mm, the width of the fins 13 is within 0.5 mm to 1 mm, the fin height h of the fins 13 ≥ 0.5 m, and the fin height h is less than the depth of the oil tank 5. The rectangular fins in the medium-pressure oil tank are changed to monomeric long-strip, fine fins as shown in Figure 6 The monomeric long-strip, fine fins have a length of 3 mm ≤ b ≤ 15 mm, a width of 0.5 mm to 1 mm, a fin height h ≥ 0.5 m, and their depth should be less than the depth of the medium-pressure oil tank; the monomeric long-strip fins can replace multiple small-sized fins to cause disturbance to the lubricating oil when flowing through the medium-pressure oil tank, thereby achieving the effect of cooling and heat dissipation. The continuous structure should not be too long or too short, otherwise the heat dissipation effect is not good and the flow resistance of the oil will increase. The fins are disposed in the second oil tank, and the second oil tank is the main oil supply tank, so that the fins can agitate the oil tank to the greatest extent and enhance heat dissipation.

[0087] The present disclosure also provides a compressor (preferably a scroll compressor) including the pump body structure described in any one of the preceding items.

[0088] The above are only the preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure. The above is only the preferred implementation manner of the present disclosure. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present disclosure, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present disclosure.

Claims

1. A pump body structure, characterized in that: Comprising: A stationary scroll plate (3) and a moving scroll plate (2), the stationary scroll plate (3) includes stationary scroll teeth (31) and a first support portion (32), the stationary scroll teeth (31) are located radially inside the first support portion (32), the moving scroll plate (2) includes moving scroll teeth (21) and a second support portion (22), the moving scroll teeth (21) are located radially inside the second support portion (22), the first support portion (32) includes a first support surface (33), the second support portion (22) includes a second support surface (23), the first support surface (33) and the second support surface (23) can be in surface contact, a first texture structure (6) is provided on the first support surface (33), the first texture structure (6) includes a plurality of first grooves (61), and the first grooves (61) can store lubricating oil; An oil groove (5) is further formed on the first support surface (33), the first texture structure (6) is located radially outside the oil groove (5), and the first texture structure (6) can introduce oil from the oil groove (5) into the first grooves (61); The cross-section of the first groove is a square structure with a side length of a; The shortest distance L1 between the first groove (61) and the radially outer edge (8) of the first support surface (33) is ≥ 1.5a; the distance L2 between adjacent two first grooves (61) is ≥ 2.3a; The shortest distance L3 between the first groove (61) and the oil groove (5) is ≥ 2a; A rib (13) is further provided in the oil groove (5), the rib (13) is a continuous structure and extends in the oil groove (5), or the rib (13) is a discontinuous structure and extends intermittently along the extending direction of the oil groove (5); The length b of the rib (13) satisfies 3mm ≤ b ≤ 15mm, the width of the rib (13) is within 0.5mm - 1mm, the rib height h of the rib (13) is ≥ 0.5m, and the rib height h is less than the depth of the oil groove (5).

2. The pump body structure according to claim 1, characterized in that: It further includes a bracket (11), a back pressure chamber (1) is formed between the bracket (11) and the moving scroll plate (2), the oil groove (5) includes a first oil groove (51), and the first oil groove (51) can communicate with the back pressure chamber (1) to suck lubricating oil from the back pressure chamber (1); There is an interval channel (12) between the moving scroll plate (2) and the bracket (11) in the radial direction, one end of the interval channel (12) communicates with the first oil groove (51), and the other end communicates with the back pressure chamber (1), so that the first oil groove (51) can suck lubricating oil from the back pressure chamber (1) through the interval channel (12).

3. The pump body structure according to claim 2, characterized in that: The oil sump (5) further includes a second oil sump (52), the second oil sump (52) is located radially inside the first oil sump (51), one end of the second oil sump (52) communicates with the first oil sump (51) to introduce oil from the first oil sump (51), and the first texture structure (6) is located between the first oil sump (51) and the second oil sump (52) so that the first texture structure (6) can introduce oil from the first oil sump (51) and / or the second oil sump (52).

4. The pump body structure according to claim 3, characterized in that: The first oil sump (51) extends circumferentially along the stationary scroll tooth (31), the second oil sump (52) also extends circumferentially along the stationary scroll tooth (31), and the first texture structure (6) also extends circumferentially along the first oil sump (51).

5. The pump body structure according to claim 1, characterized in that: The cross-section of the first groove (61) is a polygonal structure, and the polygonal structure includes at least one of a triangle, a square and a rhombus; and / or, A plurality of the first grooves (61) are arranged in a row along the radial direction of the stationary scroll disk (3), and the central angle α between adjacent two rows of the first grooves (61) is 1° to 7°.

6. The pump body structure according to any one of claims 1-5, characterized in that: A second texture structure (4) is provided on the first support surface (33), the second texture structure (4) includes a plurality of second grooves (41), and the second texture structure (4) can introduce oil from the oil sump (5) into the second grooves (41), and the second grooves (41) can store lubricating oil; the second texture structure (4) is located radially inside the oil sump (5).

7. The pump body structure according to claim 6, characterized in that: The cross-section of the second groove (41) is an arc structure, including at least one of an ellipse and a circle; and / or, when the oil sump (5) includes a second oil sump (52), the second texture structure (4) is connected and communicated with the second oil sump (52) to suck oil from the second oil sump (52).

8. The pump body structure according to claim 7, characterized in that: The cross-section of the second groove (41) is circular, and its diameter is d; The shortest distance L6 between the second groove (41) and the oil sump (5) is ≥ 2d; The first support surface (33) has a radially inner edge, a compression chamber is provided radially inside the radially inner edge, a stationary disk seal line (9) is provided on the first support surface (33) at a preset distance from the radially inner edge, and the shortest distance L5 between the second groove (41) and the stationary disk seal line (9) is ≥ 2.2d; The distance L4 between adjacent two second grooves (41) is ≥ d.

9. A compressor, characterized in that: Including the pump body structure according to any one of claims 1-8.

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