CN113339258A

CN113339258A - Pump body structure and compressor

Info

Publication number: CN113339258A
Application number: CN202110759031.5A
Authority: CN
Inventors: 徐嘉; 单彩侠; 康小丽; 覃凤莲; 赵玉晨
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai; Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2021-09-03

Abstract

The utility model provides a pump body structure and compressor, pump body structure includes: the fixed scroll comprises a fixed scroll wrap and a first supporting portion, the fixed scroll wrap is located on the radial inner side of the first supporting portion, the movable scroll wrap comprises a movable scroll wrap and a second supporting portion, the movable scroll wrap is located on the radial inner side of the second supporting portion, the first supporting portion comprises a first supporting surface, the second supporting portion comprises a second supporting surface, the first supporting surface and the second supporting surface can be in surface contact, a first texture structure is arranged on the first supporting surface, the first texture structure comprises a plurality of first grooves, and lubricating oil can be stored in the first grooves. According to the lubricating oil storage structure, the lubricating oil flowing into the end face of the scroll can be stored through the lubricating oil stored in the first texture structure, and the problem that the lubricating oil of the pump body excessively depends on an oil supply mechanism to cause the oil shortage and abrasion of the end face of the pump body is solved.

Description

Pump body structure and compressor

Technical Field

The disclosure relates to the technical field of compressors, in particular to a pump body structure and a compressor.

Background

The scroll compressor has good performances of low energy consumption, high efficiency, low noise and the like, and is widely applied to the fields of refrigeration air-conditioning, power engineering and the like. The main parts of the scroll compressor comprise a movable scroll, a fixed scroll, a bracket, a crankshaft and an anti-rotation mechanism, wherein the movable scroll is attached to the fixed scroll under the driving of the crankshaft to form a plurality of compression cavities, so that the purposes of gas suction, compression and exhaust are realized.

A part of lubricating oil from a back pressure cavity of a traditional scroll compressor enters an air suction cavity through pressure difference to lubricate a pump body, and the other part of lubricating oil enters a medium-pressure oil groove to lubricate the end face of the pump body through the translational motion of a movable disc, so that the pump body can normally run. In actual operation, the movable scroll and the fixed scroll are tightly attached due to the back pressure of the movable scroll, and lubricating oil is difficult to smoothly flow into the end face of the pump body for lubrication, so that the end face (particularly the position of the supporting face) of the pump body is easy to have oil-starved abrasion; under the bad working condition, the compressor has the phenomenon of oil shortage in the back pressure cavity and even in the high pressure cavity, so that the problem of oil shortage and abrasion of the end face of the pump body is more serious. And when the compressor is in actual operation, the heat generated by friction of the closely attached movable and fixed scroll plates is difficult to dissipate under long-term high-speed operation, so that the performance of the pump body is reduced.

Because the scroll compressor among the prior art has the back pressure to make the movable and static scroll plate closely laminate owing to the movable disk, lubricating oil is difficult to smoothly flow into pump body terminal surface and lubricates to lead to technical problem such as the easy oil shortage wearing and tearing phenomenon of appearing of pump body terminal surface (especially supporting surface position department), consequently this open research designs a pump body structure and compressor.

BRIEF SUMMARY OF THE PRESENT DISCLOSURE

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 existing in the movable scroll, the movable scroll and the fixed scroll are tightly attached, and the lubricating oil is difficult to smoothly flow into the end face of the pump body for lubrication, so that the oil starvation and abrasion are easily caused on the end face (especially on the position of the supporting surface) of the pump body, thereby providing a pump body structure and a compressor.

In order to solve the above problem, the present disclosure provides a pump body structure, which includes:

the fixed scroll comprises a fixed scroll wrap and a first supporting portion, the fixed scroll wrap is located on the radial inner side of the first supporting portion, the movable scroll wrap comprises a movable scroll wrap and a second supporting portion, the movable scroll wrap is located on the radial inner side of the second supporting portion, the first supporting portion comprises a first supporting surface, the second supporting portion comprises a second supporting surface, the first supporting surface and the second supporting surface can be in surface contact, a first texture structure is arranged on the first supporting surface, the first texture structure comprises a plurality of first grooves, and lubricating oil can be stored in the first grooves.

In some embodiments, the first supporting surface further defines an oil groove, the first texture structure is located radially outside the oil groove, and the first texture structure is capable of introducing oil from the oil groove into the first groove.

In some embodiments, further comprising a support forming a back pressure chamber with the orbiting scroll, the oil groove comprising a first oil groove communicable with the back pressure chamber to suck lubricating oil from the back pressure chamber;

move the vortex dish with have the interval passageway in the radial direction between the support, interval passageway one end with first oil groove intercommunication, the other end with back pressure chamber intercommunication makes first oil groove can be passed through the interval passageway is followed lubricating oil is inhaled in the back pressure chamber.

In some embodiments, the oil sump further comprises a second oil sump located radially inward of the first oil sump, one end of the second oil sump communicating with the first oil sump to introduce oil from the first oil sump, and the first texture structure is located between the first oil sump and the second oil sump such that the first texture structure is capable of introducing oil from the first oil sump and/or the second oil sump.

In some embodiments, the first oil groove extends circumferentially along the fixed wrap, the second oil groove also extends circumferentially along the fixed wrap, and the first texture also extends circumferentially along the first oil groove.

In some embodiments, the cross-section of the first groove is a polygonal structure comprising at least one of a triangle, a square, and a diamond; and/or the presence of a gas in the gas,

the first grooves are arranged in a row along the radial direction of the fixed scroll, and the first grooves of two adjacent rows are spaced by a central angle alpha which is 1-7 degrees.

In some embodiments, the cross section of the first groove is a square structure, and the side length of the square structure is a;

the shortest distance L1 between the first groove and the radial outer edge of the first supporting surface is more than or equal to 1.5 a; the distance L2 between every two adjacent first grooves is more than or equal to 2.3 a;

the shortest distance L3 between the first groove and the oil groove is more than or equal to 2 a.

In some embodiments, a second textured structure is disposed on the first support surface, the second textured structure comprising a plurality of second grooves, and the second textured structure is capable of introducing oil from the oil sump into the second grooves, the second grooves being capable of storing lubricating oil; the second texture structure is located radially inward of the oil groove.

In some embodiments, the cross-section of the second groove is an arc-shaped structure including at least one of an ellipse and a circle; and/or, when the oil sump comprises a second oil sump, the second texture structure interfaces and communicates with the second oil sump to draw oil from the second oil sump.

In some embodiments, the second groove is circular in cross-section and has a diameter d;

the shortest distance L6 between the second groove and the oil groove is more than or equal to 2 d;

the first supporting surface is provided with a radial inner side edge, a compression cavity is arranged on the radial inner side of the radial inner side edge, a static disc sealing line is arranged on the first supporting surface at a preset distance from the radial inner side edge, and the shortest distance L5 between the second groove and the static disc sealing line is more than or equal to 2.2 d;

the distance L4 between two adjacent second grooves is larger than or equal to d.

In some embodiments, the oil tank is further provided with ribs, and the ribs are of a continuous structure and extend in the oil tank, or the ribs are of an intermittent structure and extend intermittently along the extending direction of the oil tank.

In some embodiments, when the oil sump comprises a second oil sump, the fins are disposed in the second oil sump; and/or the length b of the rib is more than or equal to 3mm and less than or equal to 15mm, the width of the rib is within 0.5-1 mm, the rib height h of the rib is more than or equal to 0.5m, and the rib height h is less than the depth of the oil groove.

The present disclosure also provides a compressor including the pump body structure of any one of the foregoing.

The pump body structure and the compressor provided by the disclosure have the following beneficial effects:

1. according to the lubricating oil lubricating structure, the first texture structure is arranged on the first supporting surface, used for being in contact with the movable scroll surface, of the fixed scroll and comprises the plurality of first grooves, the first grooves can store lubricating oil, the lubricating oil can still smoothly flow into the end face of a pump body to perform a lubricating action (called as a drainage action) when the movable scroll and the fixed scroll are tightly attached, and the problem that the end face of the pump body is easily subjected to oil shortage abrasion due to the action of back pressure is solved; the lubricating oil stored in the first texture structure can be used for storing the lubricating oil flowing into the end face of the scroll plate, so that the problem that the end face of the pump body is subjected to oil starvation and abrasion when the compressor is internally starved under severe working conditions due to the fact that the pump body is excessively lubricated by an oil supply mechanism is solved; the pump body running at high speed can be radiated by the lubricating oil stored in the first texture structure;

2. the oil groove structure arranged on the first supporting surface can suck oil from structures such as a back pressure cavity and convey the oil to the first texture structure with the storage structure, so that the effects of providing and transporting lubricating oil are realized, and the problem that the end surface of the pump body cannot be lubricated in the absence of an oil supply mechanism can be solved due to the oil storage effect of the first groove of the first texture structure; this is disclosed still through the second texture structure that sets up at the radial inboard of oil groove structure, and the second recess in the second texture structure also can play the effect of storage oil, and the second texture structure that lies in the radial inboard of oil groove can form the oil blanket through oil, plays effective sealed effect to being close to static vortex dish inboard, solves the problem of gas leakage in the compression chamber. Through the fin that sets up in the oil groove, can play effective disturbance effect to lubricating oil, play the radiating effect of cooling down to lubricating oil to play the effect of heat dissipation cooling to the pump body.

Drawings

Fig. 1 is an internal cross-sectional view of a pump body structure of a compressor of the present disclosure;

FIG. 2 is a bottom view of the fixed scroll of FIG. 1 of the present disclosure;

FIG. 3a is an enlarged view of a portion I of FIG. 2;

FIG. 3B is a partial enlarged view of portion B of FIG. 3 a;

FIG. 3c is an enlarged view of a portion II of FIG. 2;

FIG. 3d is an enlarged view of a portion III of FIG. 2;

FIG. 4 is a cross-sectional view A-A of FIG. 2;

FIG. 5 is an enlarged view of a portion IV of FIG. 4;

FIG. 6 is a bottom view of the fixed scroll in an alternative embodiment;

fig. 7 is a partial enlarged view of a portion V in fig. 6.

The reference numerals are represented as:

1. a back pressure chamber; 2. a movable scroll; 21. a movable scroll wrap; 22. a second support portion; 23. a second support surface; 3. a fixed scroll; 31. a fixed wrap; 32. a first support section; 33. a first support surface; 4. a second texture structure; 41. a second groove; 5. an oil sump; 51. a first oil groove; 52. a second oil groove; 6. a first texture structure; 61. a first groove; 7. an intermediate pressure oil sump outer boundary; 8. a radially outer edge; 9. a stationary disc seal line; 10. an inner boundary of a medium pressure oil groove; 11. a support; 12. spacing the channels; 13. and (4) ribs.

Detailed Description

As shown in fig. 1-7, the present disclosure provides a pump body structure comprising:

the fixed scroll 3 comprises a fixed scroll wrap 31 and a first supporting portion 32, the fixed scroll wrap 31 is located on the radial inner side of the first supporting portion 32, the movable scroll wrap 2 comprises a movable scroll wrap 21 and a second supporting portion 22, the movable scroll wrap 21 is located on the radial inner side of the second supporting portion 22, the first supporting portion 32 comprises a first supporting surface 33, the second supporting portion 22 comprises a second supporting surface 23, the first supporting surface 33 and the second supporting surface 23 can be in surface contact, a first texture structure 6 is arranged on the first supporting surface 33, the first texture structure 6 comprises a plurality of first grooves 61, and the first grooves 61 can store lubricating oil.

According to the lubricating oil lubricating structure, the first texture structure is arranged on the first supporting surface, used for being in contact with the movable scroll surface, of the fixed scroll and comprises the plurality of first grooves, the first grooves can store lubricating oil, the lubricating oil can still smoothly flow into the end face of a pump body to perform a lubricating action (called as a drainage action) when the movable scroll and the fixed scroll are tightly attached, and the problem that the end face of the pump body is easily subjected to oil shortage abrasion due to the action of back pressure is solved; the lubricating oil stored in the first texture structure can be used for storing the lubricating oil flowing into the end face of the scroll plate, so that the problem that the end face of the pump body is subjected to oil starvation and abrasion when the compressor is internally starved under severe working conditions due to the fact that the pump body is excessively lubricated by an oil supply mechanism is solved; the lubricating oil stored in the first texture structure can dissipate heat of the pump body running at high speed.

The arrangement of the micro groove on the outer side supporting surface of the fixed scroll increases the lubricating effect of the end surface of the pump body, and solves the problem that the end surface is easy to be subjected to oil starvation and abrasion due to the close attachment of the movable scroll and the fixed scroll during working; meanwhile, the lubricating oil stored (or attached) in the micro groove can reduce the dependence of the pump body on an oil supply passage, and when the oil shortage phenomenon occurs in the compression cavity, the end face of the pump body can be lubricated to a certain extent, so that the phenomenon that the end face is abraded due to the oil shortage is reduced. And the micro groove close to the sealing line is different from the micro groove at the supporting surface at the outer side of the fixed scroll, and when the micro texture with the smooth edge shape is filled with oil, the sealing effect of the pump body is greatly improved.

The present disclosure solves the following problems: 1. in the conventional scroll compressor, the movable scroll and the fixed scroll are tightly attached due to the back pressure of the movable scroll, and lubricating oil is difficult to smoothly flow into the end face of a pump body for lubrication, so that the end face (particularly the position of a supporting surface) of the pump body is easy to have oil-starved abrasion;

2. the pump body lubrication excessively depends on an oil supply mechanism, and when the compressor has an oil shortage phenomenon in the compressor under a severe working condition, the problem of oil shortage and abrasion of the end face of the pump body is caused at first.

3. The closely-attached movable and fixed scroll plates are difficult to radiate heat under long-term high-speed operation, so that the performance of the compressor is easily reduced;

4. the part of the fixed scroll near the seal line is easy to leak.

Has the following beneficial effects:

1. the scroll compressor disclosed by the invention can realize that lubricating oil can still smoothly flow into the end face of the pump body to perform a lubricating action (which can be called as a drainage action) when the movable scroll and the fixed scroll are tightly attached;

2. the scroll compressor can store the lubricating oil flowing into the end face of the scroll plate, and reduce the abrasion when the oil supply is insufficient;

3. the scroll compressor can radiate heat of the pump body running at high speed;

4. the scroll compressor of the present disclosure can improve the sealing performance of the pump body.

In some embodiments, the first supporting surface 33 further defines an oil groove 5, the first texture structure 6 is located at a radial outer side of the oil groove 5, and the first texture structure 6 can introduce oil from the oil groove 5 into the first groove 61. This is disclosed still through the oil groove structure that sets up on first holding surface, can follow the oil of inhaling in structures such as backpressure chamber to carry oil to the first texture structure who has the storage structure in, realized the effect of providing and transporting of the source of lubricating oil, because the first recess of first texture structure has the oil storage effect, can solve and can't lubricate the problem to pump body terminal surface when lacking fuel feeding mechanism.

In some embodiments, further comprising a bracket 11, a back pressure chamber 1 is formed between the bracket 11 and the orbiting scroll 2, and the oil groove 5 comprises 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;

the movable scroll 2 and the bracket 11 have a spacing channel 12 therebetween in a radial direction, and one end of the spacing channel 12 is communicated with the first oil groove 5, and the other end is communicated 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 spacing channel 12.

This is this the preferred structural style of this disclosure, carry out the oil absorption in the backpressure chamber between first oil groove through support and the movable scroll dish promptly to carry out the intercommunication of oil through the interval passageway between movable scroll dish and the support, accomplish the effect of leading into the backpressure chamber in the first oil groove, and first oil groove is with leading into first texture structure with oil again and store, with the condition that can't get into the laminating terminal surface and cause the wearing and tearing from the outside when effectively attaching tightly to the terminal surface between fixed scroll dish and the movable scroll dish, this disclosure directly passes through the first texture structure of seting up in the first supporting surface of fixed scroll dish, just can in time provide the terminal surface when needs provide lubricating oil, with the great problem of effective pump body terminal surface wearing and tearing of solving.

In some embodiments, the oil groove 5 further includes a second oil groove 52, the second oil groove 52 being located radially inward of the first oil groove 51, one end of the second oil groove 52 being in communication with the first oil groove 51 to introduce oil from the first oil groove 51, and the first texture 6 being located between the first oil groove 51 and the second oil groove 52 such that the first texture 6 can introduce oil from the first oil groove 51 and/or the second oil groove 52. This is a further preferred form of construction of the oil sump of the present disclosure, i.e. comprising two oil sumps in radial directions, while the second oil sump located radially inside is able to suck oil from the first oil sump, which sucks oil from the back pressure chamber, the second oil sump is able to supply oil to the first texture from the radially inside, and the second oil sump is able to supply oil to the second texture located radially innermost.

In some embodiments, the first oil groove 51 extends circumferentially along the fixed wrap 31, the second oil groove 52 also extends circumferentially along the fixed wrap 31, and the first texture 6 also extends circumferentially along the first oil groove 51. This is a preferred arrangement of the first oil groove and the second oil groove of the present disclosure, that is, extending along the direction of the fixed scroll wrap, and enables the first texture to extend circumferentially along the direction of the oil groove, which can effectively lubricate the first bearing surface on the outer periphery of the fixed scroll wrap.

In some embodiments, the cross-section of the first groove 61 is a polygonal structure including at least one of a triangle, a square, and a diamond; and/or the presence of a gas in the gas,

the first grooves 61 are arranged in a row in the radial direction of the fixed scroll 3, and the first grooves 61 of adjacent two rows are spaced apart by a central angle α, α being 1 ° to 7 °.

The first groove is an optimal structure form of the first groove, the outer side of the first groove can be in an irregular shape through a polygonal structure, namely, the first groove is provided with an angular pattern, the angular pattern is good in lubricating effect, and the lubricating effect of the first texture structure on the end face of the pump body can be improved; 1-7 can make first recess distribute evenly on the first supporting surface along the circumferential direction, make the lubrication more even and abundant.

the shortest distance L1 between the first groove 61 and the radial outer edge 8 of the first supporting surface 33 is more than or equal to 1.5 a; the distance L2 between every two adjacent first grooves 61 is more than or equal to 2.3 a;

the shortest distance L3 between the first groove 61 and the oil groove 5 is more than or equal to 2 a.

This is a further preferred structure and size form of the first grooves in the first texture structure of the present disclosure, the shortest distance L1 ≥ 1.5a between the first grooves 61 and the radially outer edge 8 of the first supporting surface 33 can ensure that the lubricating oil in the first grooves cannot easily leak out radially outward, and the distance L2 ≥ 2.3a between two adjacent first grooves 61 can prevent the first grooves from being arranged too closely to cause oil overflow; the shortest distance L3 between the first groove 61 and the oil groove 5 is more than or equal to 2a, which can effectively ensure that oil is sucked from the oil groove, but the phenomenon of accumulation or overflow caused by sucking excessive oil is avoided.

As shown in fig. 1, during operation, the movable scroll 2 is tightly attached to the fixed scroll 3 by the axial force in the back pressure chamber 1, and the attachment portion of the two is a support surface.

The patent disclosure provides a scroll compressor with self-lubricating and heat dissipating structure, wherein micro grooves (fig. 2) are disposed on the inner side and outer side supporting surfaces of a fixed scroll, and the shape of the micro grooves on the outer side supporting surface is not limited to that shown in the figure (square), but can be irregular shapes such as diamond and triangle, and various modifications of different forms can be easily conceived by those skilled in the art. For convenience of display, the micro grooves on the outer supporting surface are square, and the side length a of the micro grooves is 0.5-2 mm; the groove depth H is 0.1-2 mm.

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

In some embodiments, a second texture structure 4 is disposed on the first supporting 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 4 is located radially inward of the oil sump 5. The second groove in the second texture structure can also play a role in storing oil through the second texture structure arranged on the radial inner side of the oil groove structure, and the second texture structure positioned on the radial inner side of the oil groove can form an oil seal through the oil, so that the effect of effectively sealing the inner side close to the fixed scroll is achieved, and the problem of gas leakage in a compression cavity is solved; the second groove structure can also play a role in lubricating the end face of the static scroll plate and the movable scroll plate which are connected, but the sealing effect is better.

In some embodiments, the cross-section of the second groove 41 is an arc-shaped 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 4 interfaces and communicates with the second oil sump 52 to draw oil from the second oil sump 52. This is the preferred structural style of this disclosed second recess, and the inboard is the smooth figure of no edges and corners type such as circle, arc, and smooth type is sealed effectual, improves the sealed effect of second recess. The second groove is mainly supplied with oil through the second oil groove.

In some embodiments, the second groove 41 is circular in cross-section, having a diameter d;

the shortest distance L6 between the second groove 41 and the oil groove 5 is more than or equal to 2 d;

the first supporting surface 33 is provided with a radial inner side edge, a compression cavity is arranged on the radial inner side of the radial inner side edge, a static disc sealing line 9 is arranged on the first supporting surface 33 at a preset distance from the radial inner side edge, and the shortest distance L5 between the second groove 41 and the static disc sealing line 9 is more than or equal to 2.2 d;

the distance L4 between two adjacent second grooves 41 is larger than or equal to d.

The second grooves in the second texture structure of the present disclosure are further preferred in structure and size form, the shortest distance L5 ≥ 2.2d between the second grooves 41 and the static disc seal line 9 can ensure that the lubricating oil in the second grooves cannot easily leak out of the radial inner side, and the distance L4 ≥ d between two adjacent first grooves 61 can prevent the first grooves from being set too tightly to cause oil overflow; the shortest distance L6 between the second groove 41 and the oil groove 5 is more than or equal to 2d, which can effectively ensure that oil is sucked from the oil groove, but the phenomenon of accumulation or overflow caused by sucking excessive oil is avoided.

The shape of the micro-groove on the inner supporting surface is not limited to the shape shown in the figure (semi-sphere), and can be a smooth shape such as an ellipse, an arc and the like, and various modifications can be easily conceived by those skilled in the art. The inner support surface micro-groove is circular, the equivalent diameter d of the opening of the micro-groove is 0.2-2.5 mm, and the groove depth H2 is 0.1-3 mm.

As shown in FIG. 3, the distance L5 between the micro groove and the seal line of the static disc is more than or equal to 2.2d, and the distance L6 between the micro groove and the inner boundary of the medium-pressure oil groove is more than or equal to 2 d; the distance L3 between the micro groove and the outer boundary of the medium-pressure oil groove is more than or equal to 2a, and the distance L1 between the micro groove and the outer side supporting surface of the fixed scroll is more than or equal to 1.5 a; when the micro grooves are arranged along the radial direction, the distance between two adjacent micro textures is L2 not less than 2.3a, and L4 not less than a; the micro grooves are uniformly distributed and deviated according to the angle alpha, and the angle alpha is 1-7 degrees.

Preferably, the diameter d is 0.5-2.5 mm, and the groove depth H2 is 0.1-2 mm.

In some embodiments, the oil tank 5 is further provided with ribs 13, and the ribs 13 are of a continuous structure and extend in the oil tank 5, or the ribs 13 are of an intermittent structure and extend intermittently along the extending direction of the oil tank 5. This openly through the fin that sets up in the oil groove, can play effective disturbance effect to lubricating oil, play the radiating effect of lubricating oil cooling to the effect of heat dissipation cooling is played the pump body.

As shown in fig. 3-3, as the bearing surface area gradually decreases, the number of micro-grooves also gradually decreases.

As shown in fig. 3 to 5, when the compressor is operated, the flow direction of the lubricating oil near the seal line is: lubricating oil in the middle-pressure cavity flows into the first micro groove firstly, flows into the second micro groove secondly after the first micro groove is filled, and the like, so that the drainage effect and the sealing effect are achieved.

The fins are arranged in the medium-pressure oil groove of the fixed scroll, and when the compressor runs, oil in the medium-pressure oil groove flows through the fins to generate disturbance, so that the cooling and heat dissipation effects are achieved.

In some embodiments, when the oil sump 5 includes a second oil sump 52, the ribs 13 are disposed in the second oil sump 52; and/or the length b of the fins 13 is more than or equal to 3mm and less than or equal to 15mm, the width of the fins 13 is within 0.5 mm-1 mm, the rib height h of the fins 13 is more than or equal to 0.5m, and the rib height h is less than the depth of the oil groove 5. The short fins in the medium-pressure oil groove are changed into single long-strip-shaped and thin fins as shown in figure 6, wherein the length of the fins is more than or equal to 3mm and less than or equal to 15mm, the width of the fins is 0.5-1 mm, the height h of the fins is more than or equal to 0.5m, and the depth of the fins is smaller than the depth of the medium-pressure oil groove; the single strip-shaped fins can replace a plurality of small fins, so that the lubricating oil is disturbed when flowing through the medium-pressure oil groove, and the cooling and heat dissipation effects are achieved. The continuous structure is not easily too long or too short, otherwise the heat dissipation effect is not good, and the flow resistance of the oil is increased. The fin sets up in the second oil groove, and the second oil groove is main oil supply oil groove, consequently can make the fin play maximum stirring effect to the oil groove, strengthens the heat dissipation.

The present disclosure also provides a compressor, preferably a scroll compressor, comprising a pump body structure according to any one of the preceding claims.

The above description is only exemplary of the present disclosure and should not be taken as limiting the disclosure, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure. The foregoing is only a preferred embodiment of the present disclosure, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present disclosure, and these modifications and variations should also be regarded as the protection scope of the present disclosure.

Claims

1. A pump body structure, its characterized in that: the method comprises the following steps:

a fixed scroll (3) and a movable scroll (2), the fixed scroll (3) comprising a fixed wrap (31) and a first support portion (32), the fixed wrap (31) is located radially inward of the first support portion (32), the movable scroll (2) comprises a movable scroll wrap (21) and a second support portion (22), the orbiting scroll wrap (21) is located radially inward of the second support portion (22), the first support part (32) comprising a first support surface (33), the second support part (22) comprising a second support surface (23), the first support surface (33) and the second support surface (23) can be in surface contact, the first supporting surface (33) is provided with a first texture structure (6), the first texture structure (6) comprises a plurality of first grooves (61), and the first grooves (61) can store lubricating oil.

2. The pump body structure according to claim 1, wherein:

an oil groove (5) is further formed in the first supporting surface (33), the first texture structure (6) is located on the radial outer side of the oil groove (5), and the first texture structure (6) can introduce oil into the first groove (61) from the oil groove (5).

3. The pump body structure according to claim 2, wherein:

the lubricating oil device is characterized by further comprising a support (11), a back pressure cavity (1) is formed between the support (11) and the movable scroll (2), the oil groove (5) comprises a first oil groove (51), and the first oil groove (51) can be communicated with the back pressure cavity (1) to suck lubricating oil from the back pressure cavity (1);

the movable scroll (2) and the bracket (11) are provided with a spacing channel (12) in the radial direction, one end of the spacing channel (12) is communicated with the first oil groove (51), and the other end of the spacing channel is communicated with the back pressure cavity (1), so that the first oil groove (51) can suck lubricating oil from the back pressure cavity (1) through the spacing channel (12).

4. The pump body structure according to claim 3, wherein:

the oil sump (5) further comprises a second oil sump (52), the second oil sump (52) being located radially inside the first oil sump (51), one end of the second oil sump (52) being in communication with the first oil sump (51) for introducing oil from the first oil sump (51), the first texture structure (6) being located between the first oil sump (51) and the second oil sump (52) such that the first texture structure (6) is capable of introducing oil from the first oil sump (51) and/or the second oil sump (52).

5. The pump body structure according to claim 4, wherein:

the first oil groove (51) extends circumferentially along the fixed spiral wrap (31), the second oil groove (52) also extends circumferentially along the fixed spiral wrap (31), and the first texture structure (6) also extends circumferentially along the first oil groove (51).

6. The pump body structure according to any one of claims 2 to 5, wherein:

the cross section of the first groove (61) is a polygonal structure, and the polygonal structure comprises at least one of a triangle, a square and a diamond; and/or the presence of a gas in the gas,

the first grooves (61) are arranged in a row along the radial direction of the fixed scroll (3), and the first grooves (61) of two adjacent rows are spaced by a central angle alpha of 1-7 degrees.

7. The pump body structure according to claim 6, wherein:

the cross section of the first groove is of a square structure, and the side length of the first groove is a;

the shortest distance L1 between the first groove (61) and the radial outer edge (8) of the first supporting surface (33) is more than or equal to 1.5 a; the distance L2 between every two adjacent first grooves (61) is more than or equal to 2.3 a;

the shortest distance L3 between the first groove (61) and the oil groove (5) is more than or equal to 2 a.

8. The pump body structure according to any one of claims 2 to 7, wherein:

a second texture structure (4) is arranged on the first supporting surface (33), the second texture structure (4) comprises a plurality of second grooves (41), 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 inward of the oil groove (5).

9. The pump body structure according to claim 8, wherein:

the cross section of the second groove (41) is of an arc-shaped structure and comprises at least one of an oval shape and a circular shape; and/or, when the oil sump (5) includes a second oil sump (52), the second texture structure (4) interfaces and communicates with the second oil sump (52) to draw oil from the second oil sump (52).

10. The pump body structure according to claim 9, wherein:

the cross section of the second groove (41) is circular, and the diameter of the second groove is d;

the shortest distance L6 between the second groove (41) and the oil groove (5) is more than or equal to 2 d;

the first supporting surface (33) is provided with a radial inner side edge, a compression cavity is arranged on the radial inner side of the radial inner side edge, a static disc sealing line (9) is arranged on the first supporting surface (33) at a preset distance from the radial inner side edge, and the shortest distance L5 between the second groove (41) and the static disc sealing line (9) is more than or equal to 2.2 d;

the distance L4 between two adjacent second grooves (41) is more than or equal to d.

11. The pump body structure according to any one of claims 2 to 5, wherein:

still be provided with fin (13) in oil groove (5), fin (13) are the continuity structure and are in extend in oil groove (5), perhaps fin (13) are the discontinuity structure and follow the extending direction of oil groove (5) is extend discontinuously.

12. The pump body structure according to claim 11, wherein:

when the oil sump (5) comprises a second oil sump (52), the ribs (13) are arranged in the second oil sump (52); and/or the length b of the rib (13) is more than or equal to 3mm and less than or equal to 15mm, the width of the rib (13) is within 0.5 mm-1 mm, the rib height h of the rib (13) is more than or equal to 0.5m, and the rib height h is less than the depth of the oil groove (5).

13. A compressor, characterized by: comprising a pump body structure according to any one of claims 1-12.