CN113982943A

CN113982943A - Oil supply structure of scroll compressor, scroll compressor and air conditioner

Info

Publication number: CN113982943A
Application number: CN202111397637.5A
Authority: CN
Inventors: 胡余生; 单彩侠; 冯建伟; 康小丽; 赵玉晨
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-01-28
Anticipated expiration: 2041-11-23
Also published as: CN113982943B

Abstract

The utility model provides a scroll compressor's oil feeding structure, scroll compressor and air conditioner, oil feeding structure includes: the oil transportation device comprises an autorotation limiting structure and a support, wherein the autorotation limiting structure comprises a body and an oil transportation part, the oil transportation part is connected with the body, the support comprises a first cavity, a second cavity and a baffle part, the second cavity is a back pressure cavity, and the baffle part is positioned between the first cavity and the second cavity; the oil conveying part is provided with a plurality of oil conveying holes, the oil conveying part can be inserted into the communicating channel and moves along the extending direction of the communicating channel, the oil conveying part can guide oil in the first cavity into the second cavity through the oil conveying holes along with the movement of the oil conveying part, and the number of the oil conveying holes for conveying the oil is increased along with the increase of the operating frequency of the scroll compressor. According to the oil supply device, sufficient oil supply to the back pressure cavity can be guaranteed especially at high frequency, the situation that the oil supply of the back pressure cavity is unstable is prevented, and the oil supply amount is increased; the condition that the movable disc overturns can be prevented.

Description

Oil supply structure of scroll compressor, scroll compressor and air conditioner

Technical Field

The utility model relates to a compressor technical field, concretely relates to oil supply structure, scroll compressor and air conditioner of scroll compressor.

Background

Scroll compressors are widely used in air conditioning and heat pump systems because of their high efficiency, small size, and smooth operation. Generally, a scroll compressor is composed of a closed tube shell, a movable scroll, a fixed scroll, a frame, a crankshaft, an anti-rotation slip ring, a motor and an oil supply structure device.

In the oil supply structure, the refrigerant oil in the compressor oil sump is supplied to each structure, one part is supplied to each bearing through a crankshaft, and the other part is supplied to the contact surface between the orbiting scroll and the fixed scroll. Before the frozen oil is supplied to the contact surface of the movable and fixed scroll discs, the structure can accumulate the high-pressure frozen oil supplied by the oil supply structure in a medium-pressure sealing space formed by the back surface of the movable scroll disc and the upper bracket. Further, an oil supply mechanism for supplying the high-pressure refrigerant oil to the intermediate pressure chamber needs to be provided.

The oil supply structure of the compressor in the existing structure realizes oil supply of the pump body by opening the sealing ring, although the oil supply structure can supply oil in a high-pressure oil pool to a back pressure cavity of the movable disc to a certain extent, the oil supply quantity cannot change along with the operation frequency of the compressor due to the fixed opening size, and the high-frequency oil supply quantity of the compressor is insufficient.

The prior structure also has an oil supply structure of the compressor, and oil supply of a pump body is realized by arranging a flange part on a bearing hole of a movable disc and arranging an oil pocket hole on the end surface of the flange part, but the invention uses the movable disc to convey lubricating oil due to the limitation of the oil supply position, so that the operation motion of the movable disc is unstable, and the oil supply quantity cannot change along with the operation frequency of the compressor, so that the high-frequency oil supply quantity of the compressor is insufficient.

The oil supply of the back pressure cavity of the scroll compressor in the prior art is unstable, so that the oil supply quantity of the compressor is insufficient when the compressor operates at high frequency; and utilize the movable disk to carry lubricating oil, will lead to the movable disk motion unstability, technical problem such as toppling appears easily, consequently this disclosure researches and designs a scroll compressor's oil supply structure, scroll compressor and air conditioner.

BRIEF SUMMARY OF THE PRESENT DISCLOSURE

Therefore, the technical problem to be solved by the present disclosure is to overcome the defect that the oil supply of the back pressure cavity of the scroll compressor in the prior art is unstable, which results in insufficient oil supply when the compressor operates at high frequency, so as to provide an oil supply structure of the scroll compressor, the scroll compressor and an air conditioner.

In order to solve the above problems, the present disclosure provides an oil supply structure of a scroll compressor, including:

the self-rotation limiting structure can limit the self-rotation of a movable scroll of the scroll compressor, the self-rotation limiting structure comprises a body and an oil conveying part, the oil conveying part is connected with the body, the support comprises a first cavity, a second cavity and a baffle part, the first cavity can accommodate an eccentric part of a crankshaft of the scroll compressor, the second cavity is a back pressure cavity, and the baffle part is positioned between the first cavity and the second cavity;

the oil conveying part is provided with a plurality of oil conveying holes, along with the movement of the oil conveying part, the oil in the first cavity can be guided into the second cavity through the oil conveying holes, and the number of the oil conveying holes for conveying the oil is increased along with the increase of the operating frequency of the scroll compressor.

In some embodiments, the rotation limiting structure is a cross slip ring, and the oil transportation part is a cylinder structure.

In some embodiments, the plurality of oil carrying holes are opened on a lower end surface of the oil carrying portion.

In some embodiments, when the radially inner end of the oil carrying portion is inserted into the first cavity by a first preset distance, the plurality of oil carrying holes communicate with the first cavity to carry the lubricating oil from the first cavity, and when the radially inner end of the oil carrying portion is received in the communication passage, the oil carrying holes can communicate with the second cavity to introduce the carried lubricating oil into the second cavity.

In some embodiments, the blocking portion further includes an oil guiding groove, the oil guiding groove is communicated with the communicating channel, one end of the oil guiding groove is communicated with the second cavity, and the oil carrying hole can be intermittently communicated with the oil guiding groove during the movement of the oil carrying portion, so as to guide oil into the second cavity through the oil guiding groove.

In some embodiments, the oil carry hole is capable of carrying oil from the first chamber when the oil carrying portion moves to a position where the oil carry hole is located in the first chamber, and when the oil carrying portion moves to a position where the oil carry hole protrudes into the communication passage and the oil carry hole communicates with the oil guide groove, oil carried by the oil carry hole is introduced into the second chamber via the oil guide groove.

In some embodiments, the oil transportation portion is further provided with an oil transportation groove, one end of the oil transportation groove can be communicated with the first cavity, the other end of the oil transportation groove can be communicated with the second cavity, oil in the first cavity can be introduced into the second cavity through the oil transportation groove, and the oil introduction amount of the oil transportation groove does not change along with the change of the frequency of the scroll compressor.

In some embodiments, the oil carrying groove is disposed on an end surface opposite to an end surface on which the oil carrying hole is disposed.

In some embodiments, when the radially inner end of the oil carrying portion is inserted into the first cavity by a second predetermined distance, one end of the oil carrying groove communicates with the first cavity and the other end communicates with the second cavity, and when the radially inner end of the oil carrying portion is received in the communication passage, the oil carrying groove does not communicate with the first cavity.

In some embodiments, the body is provided with a mounting groove, one end of the oil transporting portion is inserted into the mounting groove, and the other end of the oil transporting portion is inserted into the communication channel.

In some embodiments, a plug is further disposed in the mounting groove, and the plug plugs one end of the oil transportation portion located in the mounting groove.

In some embodiments, one end of the oil carrying portion is fixed to the body by a hinge or a screw connection, and the other end can be inserted into the communication passage.

In some embodiments, the rotation limiting structure further includes a key connected to the body and extending along an axial direction of the body, one end of the oil transportation portion is connected to the key, and the other end of the oil transportation portion is capable of being inserted into the communication channel.

The present disclosure also provides a scroll compressor including the oil supply structure of the scroll compressor of any one of the preceding claims.

The present disclosure also provides an air conditioner including the scroll compressor of any one of the preceding claims.

The utility model provides a scroll compressor's seal structure, scroll compressor and air conditioner have following beneficial effect:

1. the oil transportation part structure is arranged on the autorotation limiting structure of the scroll compressor and is in inserted fit with the communicating channel arranged on the baffle part on the bracket, the autorotation limiting structure can be driven by the scroll to do reciprocating motion, so that the oil transportation part can do reciprocating motion in the communicating channel, and the plurality of oil transportation holes can carry lubricating oil from the first cavity through the plurality of oil transportation hole structures arranged on the oil transportation part, and the lubricating oil carried in the plurality of oil transportation holes can be guided into the second cavity when the oil transportation part moves to extend into the second cavity or the communicating channel, so as to finish the oil supply effect to the back pressure cavity, and the number of the oil transportation holes for guiding the oil is related to the operating frequency of the scroll compressor, the higher the frequency is, the more the number of the oil transportation holes for guiding the oil is, and the plurality of oil transportation holes are suitable for effectively guiding and supplying the oil when the compressor operates to high frequency, and sufficient oil supply to the back pressure cavity can be ensured particularly at high frequency, the situation that the oil supply of the back pressure cavity is unstable is prevented, and the oil supply amount is increased; in addition, an oil guide structure does not need to be arranged on the movable scroll plate, so that oil can not be conveyed by using the movable disc, the unstable motion of the movable disc can not be caused, and the overturning of the movable disc can be prevented; the structure does not influence the running state of the movable scroll, and the running is more stable under the condition of improving the oil supply effect;

2. this is disclosed still through the fortune oil groove that sets up in fortune oil portion, it can one end and first chamber intercommunication, the other end and second chamber intercommunication, can directly lead the oil to the second chamber in the first chamber through fortune oil groove, the frequency of leading oil and scroll compressor of fortune oil groove is irrelevant, its oil mass of leading is correlated with the area of switching on of fortune oil groove, be applicable to the oil when transporting compressor low frequency, intermediate frequency and high frequency through fortune oil groove, this is disclosed through setting up the fortune oil passageway that does not change along with the frequency, can be through the oil feeding volume of assurance compressor when minimum operating frequency. Therefore, the oil transportation efficiency can be increased along with the increase of the running frequency of the compressor, so that the high-frequency oil supply quantity of a pump body of the compressor is ensured; can only carry the compressor that the oilhole satisfied different oil supply demands through seting up different length oil groove and different numbers under the unchangeable condition of assurance compressor original structural characteristic.

Drawings

FIG. 1 is a front cross-sectional view of a scroll compressor of the present disclosure;

FIG. 1a is a partial enlarged view of portion A of FIG. 1;

FIG. 2 is a top view of a cross slip ring assembly of the present disclosure;

FIG. 2a is a partial enlarged view of portion B of FIG. 2;

fig. 3 is a bottom view of a cross slip ring assembly of the present disclosure;

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

FIG. 4 is a front cross-sectional view of a cross slip ring assembly of the present disclosure;

FIG. 4a is an enlarged view of a portion D of FIG. 4;

FIG. 5 is a front cross-sectional view of an upper brace of the present disclosure;

FIG. 6 is a schematic illustration of stage 1 of the oil handling process of the present disclosure;

FIG. 6a is an enlarged view of a portion E of FIG. 6;

FIG. 7 is a schematic illustration of stage 2 of the oil handling process of the present disclosure;

FIG. 7a is an enlarged view of a portion F of FIG. 7;

FIG. 8 is a graph showing the variation of oil supply amount of an oil transportation tank with frequency and the related dimension of the oil transportation tank according to the present disclosure;

FIG. 9 is a graph showing the change rule of the oil supply amount of the oil transportation hole along with the frequency and the related dimension of the oil transportation hole according to the invention;

fig. 10 is a front sectional view of embodiment 2 of the present disclosure;

FIG. 10a is an enlarged view of a portion G of FIG. 10;

fig. 11 is a front sectional view of

embodiments

3, 4 of the present disclosure;

FIG. 11a is a partial enlarged view of portion H of FIG. 11;

fig. 11b is a partial enlarged view of portion I of fig. 11.

The reference numerals are represented as:

1. a fixed scroll; 2. a movable scroll; 3. a self-rotation limiting structure; 31. a body; 32. an oil transport section; 33. an oil conveying hole; 34. an oil conveying tank; 35. mounting grooves; 36. a plug; 37. a key; 38. an articulation member; 39. a threaded connection; 4. a support; 41. a first chamber; 42. a second chamber; 43. a barrier portion; 44. a communication channel; 45. an oil guide groove; 7. a crankshaft; 71. an eccentric portion; 8. a main bearing; 9. a primary counterbalance; 10. a secondary bearing; 11. an oil pump; 12. a bottom oil sump.

Detailed Description

As shown in fig. 1 to 11b, the present disclosure provides an oil supply structure of a scroll compressor, which includes:

the rotation limiting structure 3 and the bracket 4, the rotation limiting structure 3 can limit the rotation of the movable scroll 2 of the scroll compressor, the rotation limiting structure 3 comprises a body 31 and an oil transporting part 32, the oil transporting part 32 is connected with the body 31, the bracket 4 comprises a first cavity 41, a second cavity 42 and a blocking part 43, the first cavity 41 can accommodate an eccentric part 71 of a crankshaft 7 of the scroll compressor, the second cavity 42 is a back pressure cavity, the blocking part 43 is positioned between the first cavity 41 and the second cavity 42, and the first cavity 41 and the second cavity 42 are separated by the blocking part 43;

the blocking portion 43 is provided with a communication passage 44, the oil carrying portion 32 is inserted into the communication passage 44 and moves along the extending direction of the communication passage 44, the oil carrying portion 32 is provided with a plurality of oil carrying holes 33, the oil in the first chamber 41 can be guided into the second chamber 42 through the oil carrying holes 33 along with the movement of the oil carrying portion 32, and the number of the oil carrying holes 33 for carrying out oil carrying is increased along with the increase of the operating frequency of the scroll compressor. The communication passage 44 has one end communicating with the first chamber 41 and the other end communicating with the second chamber 42.

The oil transportation part structure is arranged on the autorotation limiting structure of the scroll compressor and is in inserted fit with the communicating channel arranged on the baffle part on the bracket, the autorotation limiting structure can be driven by the scroll to do reciprocating motion, so that the oil transportation part can do reciprocating motion in the communicating channel, and the plurality of oil transportation holes can carry lubricating oil from the first cavity through the plurality of oil transportation hole structures arranged on the oil transportation part, and the lubricating oil carried in the plurality of oil transportation holes can be guided into the second cavity when the oil transportation part moves to extend into the second cavity or the communicating channel, so as to finish the oil supply effect to the back pressure cavity, and the number of the oil transportation holes for guiding the oil is related to the operating frequency of the scroll compressor, the higher the frequency is, the more the number of the oil transportation holes for guiding the oil is, and the plurality of oil transportation holes are suitable for effectively guiding and supplying the oil when the compressor operates to high frequency, and sufficient oil supply to the back pressure cavity can be ensured particularly at high frequency, the situation that the oil supply of the back pressure cavity is unstable is prevented, and the oil supply amount is increased; in addition, an oil guide structure does not need to be arranged on the movable scroll plate, so that oil can not be conveyed by using the movable disc, the unstable motion of the movable disc can not be caused, and the overturning of the movable disc can be prevented; the structure does not influence the running state of the movable scroll plate, and the running is more stable under the condition of improving the oil supply effect.

In order to stably supply oil to the medium-pressure cavity on the premise of ensuring the sealing of the high-pressure cavity and the medium-pressure cavity, the invention provides a novel cross-shaped sliding ring structure which can intermittently communicate a high-pressure oil pool on the back of a movable disc with the medium-pressure cavity under the condition of ensuring the sealing, and simultaneously convey the refrigeration oil in the high-pressure oil pool to the medium-pressure cavity in a certain mode so as to ensure that the end face of the movable disc and the static disc has enough oil supply. The invention has simple principle, strong practicability and reliability and can effectively ensure the oil supply quantity of the pump body assembly of the scroll compressor under the high-frequency condition.

The invention provides a novel oil supply structure for a cross slip ring of a scroll compressor, and the novel oil supply structure for the cross slip ring of the scroll compressor comprises a cross slip ring assembly (namely an autorotation limiting structure 3) and an upper bracket (namely a bracket 4), wherein the cross slip ring assembly comprises at least one group of oil conveying parts. 2. The surface of the oil conveying part comprises an oil conveying groove and an oil conveying hole. 3. The oil transporting grooves and the oil transporting holes formed in the surfaces of the oil transporting columns respectively influence the stable oil supply amount and the oil supply amount changing along with the frequency, and the oil transporting grooves with different lengths and the oil transporting holes with different numbers are formed for different compressor operation frequencies. 4. The upper bracket is provided with an opening at a position corresponding to the cross slip ring, and an oil guide groove is arranged at a position corresponding to an oil conveying hole on the oil conveying column of the cross slip ring at the opening of the upper bracket. 5. The oil conveying column is fixed on the cross slip ring and reciprocates relative to the upper support, and oil in the high-pressure oil pool is conveyed into the back pressure cavity through the oil guide groove and the oil conveying hole.

Referring to fig. 1: the lubricating oil of the scroll compressor is stored in a bottom oil pool 12, an oil pump 11 is driven by the rotation of a crankshaft 7, the lubricating oil in the bottom oil pool 12 is respectively supplied to different parts of the compressor along the central oil path of the crankshaft 7, the lubricating oil comprises a secondary bearing 10, a main bearing 8 and a high-pressure oil pool (a first cavity 41), then the lubricating oil is transported to a medium-pressure cavity (a second cavity 42) from the high-pressure oil pool (the first cavity 41) through an oil supply structure in a cross sliding ring assembly (a rotation limiting structure 3), and finally the lubricating oil is brought into the contact surface of a movable scroll and a fixed scroll through the revolution translation of the movable scroll, so that the oil supply and the lubrication of a pump body are realized. See fig. 2-4: the cross slip ring assembly in this embodiment includes a cross slip ring structure (i.e., the body 31), and an oil transportation column (i.e., the oil transportation portion 32), which may be provided with one or more oil transportation columns, wherein the oil transportation column includes an oil transportation structure, and the oil transportation structure covers a combination of the oil transportation groove 34 and the oil transportation hole 33. For convenience of explanation, in this example, 2 oil transportation columns are symmetrically arranged, an oil transportation groove is formed above the surface of each oil transportation column, an oil transportation hole is formed below the surface of each oil transportation column, and the oil transportation columns are fixed by plugs 36.

In some embodiments, the rotation limiting structure 3 is a cross slip ring, and the oil transportation portion 32 is a cylinder structure. The rotation limiting structure is an optimal structure form of the rotation limiting structure, namely, the rotation of the movable scroll can be limited through the cross slip ring, so that the movable scroll can only move horizontally; the oil transporting part is preferably a cylinder structure, prism or cylinder.

In some embodiments, the plurality of oil carrying holes 33 are opened on a lower end surface of the oil carrying portion 32. The lower end face of the oil conveying part is provided with the oil conveying hole, so that lubricating oil in the oil conveying hole can be guided out through gravity when the oil conveying hole located at the lower end moves to the second cavity or the upper part of the oil guide groove, and the effect of effective oil supply is achieved.

In some embodiments, when the radially inner end of the oil carrying portion 32 is inserted into the first cavity 41 by a first preset distance, the plurality of oil carrying holes 33 communicate with the first cavity 41 to carry the lubricating oil from the first cavity 41, and when the radially inner end of the oil carrying portion 32 is received in the communication passage 44, the oil carrying holes 33 can communicate with the second cavity 42 to introduce the carried lubricating oil into the second cavity 42. This is disclosed when inserting the first distance of predetermineeing in the first chamber through the radial inboard of fortune oil portion, at least one among a plurality of fortune oilholes stretches out the intercommunication passageway and gets into first chamber to can carry lubricating oil in following the first chamber, when the radial inboard of fortune oil portion is accomodate in the intercommunication passageway, need realize leading oil through the structure of fortune oilhole, and this time fortune oilhole can communicate with the second chamber effectively, thereby effectively with oil water conservancy diversion to the second chamber in (directly switch on or through lead the oil groove indirectly switch on all), accomplish the fuel feeding to the second chamber.

In some embodiments, the blocking portion 43 further has an oil guiding groove 45 formed thereon, the oil guiding groove 45 is communicated with the communicating channel 44, one end of the oil guiding groove 45 is communicated with the second chamber 42, and the other end is not communicated with the first chamber 41, and the oil carrying hole 33 can be intermittently communicated with the oil guiding groove 45 during the movement of the oil carrying portion 32, so as to guide the oil into the second chamber 42 through the oil guiding groove 45.

The oil guide groove structure is arranged on the blocking part, so that lubricating oil carried by the oil carrying hole can be received through the oil guide groove structure and conducted into the second cavity, and the oil guide groove and the oil carrying hole can be intermittently communicated along with the translation of the cross slip ring, so that intermittent oil conduction is formed; the other end of the oil guide groove is not communicated with the first cavity, so that the oil in the first cavity is prevented from being directly conducted into the second cavity through the oil guide groove, and the oil supply amount cannot be controlled according to different rotation frequencies; the present disclosure automatically controls the amount of oil supply according to the frequency of the compressor by the intermittent communication; the more the frequency is, the more the number of the oil transporting holes that communicate is, the more the oil mass that then switches on is, and the oil mass when realizing high frequency operation increases, improves the fuel feeding, satisfies the high oil mass's of high frequency demand.

Referring to fig. 5: this embodiment sets up on the upper bracket and leads oil groove 45, and it sets up the position and cooperatees with the fortune oilhole 33 of cross sliding ring, and the trompil that the upper bracket was bored can relative slip with the oil column, can guarantee simultaneously sealedly, and fortune oilhole 33 is reciprocating motion along with the fortune oil column of cross sliding ring, takes oil into simultaneously and leads oil groove 45, and then realizes high-pressure oil bath and medium-pressure chamber intermittent type nature fortune oil. See fig. 6-7: in the oil conveying stage 1, the cross slip ring assembly is in a state shown in fig. 6, the left half part of the oil conveying column extends into the high-pressure oil pool, the oil conveying groove 34 can realize that the high-pressure oil pool (the first cavity 41) is communicated with the back pressure cavity (the second cavity 42) in a specified stroke, and due to the pressure difference between the two cavities, lubricating oil in the high-pressure oil pool enters the back pressure cavity through the oil conveying groove 34 to realize oil supply; meanwhile, the oil carrying hole 33 can store a small amount of lubricating oil, in fig. 7, during the oil carrying stage 2, the lubricating oil stored in the oil carrying hole 33 returns to the back pressure cavity (the second cavity 42) along with the oil carrying column and enters the middle pressure cavity (the second cavity 42) through the oil guiding groove 45 formed in the upper bracket, and meanwhile, the left oil carrying groove 34 is in a closed state, so that a complete oil carrying stage is completed.

Preferably, lead the oil groove and be located the lower extreme that communicates the passageway, lead the oil groove and be located the lower extreme of fortune oilhole, can guarantee like this that the lubricating oil that comes in the fortune oilhole can get into through gravity automatically and lead in the oil groove, and then get into the second chamber to accomplish the effective conduction to oil.

In some embodiments, the oil carrying hole 33 can carry oil from the first chamber 41 when the oil carrying portion 32 moves such that the oil carrying hole 33 is located in the first chamber 41, and when the oil carrying portion 32 moves such that the oil carrying hole 33 protrudes into the communication passage 44 and the oil carrying hole 33 communicates with the oil guide groove 45, oil carried by the oil carrying hole 33 is introduced into the second chamber 42 via the oil guide groove 45. The oil conveying hole and the oil guide groove are in a further preferable structure form of communicating and guiding oil, namely the oil conveying hole carries lubricating oil from the first cavity in one period along with the rotation process of a compressor crankshaft, then the lubricating oil enters the communicating channel to be communicated with the oil guide groove, then the oil is communicated and transported, and the effect of carrying oil and guiding oil in one rotation period is achieved.

In some embodiments, the oil carrying portion 32 is further provided with an oil carrying groove 34, one end of the oil carrying groove 34 can be communicated with the first cavity 41, and the other end can be communicated with the second cavity 42, oil in the first cavity 41 can be guided into the second cavity 42 through the oil carrying groove 34, and the oil guiding amount of the oil carrying groove 34 is not changed along with the frequency change of the scroll compressor.

This is disclosed still through the fortune oil groove that sets up in fortune oil portion, it can one end and first chamber intercommunication, the other end and second chamber intercommunication, can directly lead the oil to the second chamber in the first chamber through fortune oil groove, the frequency of leading oil and scroll compressor of fortune oil groove is irrelevant, its oil mass of leading is correlated with the area of switching on of fortune oil groove, be applicable to the oil when transporting compressor low frequency, intermediate frequency and high frequency through fortune oil groove, this is disclosed through setting up the fortune oil passageway that does not change along with the frequency, can be through the oil feeding volume of assurance compressor when minimum operating frequency. Therefore, the oil transportation efficiency can be increased along with the increase of the running frequency of the compressor, so that the high-frequency oil supply quantity of a pump body of the compressor is ensured; can only carry the compressor that the oilhole satisfied different oil supply demands through seting up different length oil groove and different numbers under the unchangeable condition of assurance compressor original structural characteristic.

The oil conveying groove 34 and the oil conveying hole 33 which are formed in the oil conveying column in the cross-shaped slip ring assembly respectively guarantee the oil supply amount of the scroll compressor at low frequency and high frequency. The length of the oil transporting groove 34 can change the communication time length ratio of the oil transporting groove in one operating period of the compressor, the width of the oil transporting groove 34 can control the flow area, so as to control the oil supply amount of each period, as shown in fig. 8, the oil passing amount in unit time can be changed by changing the length of the oil transporting groove 34 in the embodiment, similarly, the change of the sectional area of the oil transporting groove 34 has the same effect, the oil supply amount of the part does not change along with the frequency, is only related to the structural parameters such as the length and the sectional width of the oil transporting groove 34, and mainly ensures the low-frequency oil supply of the compressor; the depth, the sectional size and the number of the oil transporting holes 33 can change the oil supply amount of the compressor in an operating period, as shown in fig. 9, the oil transporting holes 33 with different numbers are arranged in the embodiment to change the oil transporting amount in a unit period, and similarly, the sectional area and the depth of the oil transporting holes 33 can be changed to achieve the same effect, and the oil supply amount of the part is positively correlated with the frequency, mainly in order to ensure the high-frequency oil supply of the compressor.

In some embodiments, the oil carrying groove 34 is provided on an end surface opposite to an end surface where the oil carrying hole 33 is provided. The oil transporting groove and the oil transporting hole are respectively arranged on different end faces of the oil transporting part, so that oil can be supplied to one side of the oil transporting groove and the other side of the oil transporting groove through the oil transporting hole without interference, the oil transporting groove presses oil into the second cavity from the first cavity under the action of pressure, the oil transporting groove is suitable for supplying oil during low-frequency operation, and the oil supply amount during high-frequency operation is the same as that of the low-frequency operation, and does not change.

In some embodiments, the oil carrying groove 34 opens on an upper end surface of the oil carrying portion 32. This is the preferred setting position of this disclosure's fortune oil groove, and the oil groove of seting up on the up end can be through pressure differential and go into the second chamber with the oil pressure in the fortune oil groove, can store lubricating oil in the fortune oil groove.

In some embodiments, when the radially inner end of the oil transport portion 32 is inserted into the first cavity 41 by a second predetermined distance, one end of the oil transport groove 34 communicates with the first cavity 41 and the other end communicates with the second cavity 42, and when the radially inner end of the oil transport portion 32 is received in the communication passage 44, the oil transport groove 34 does not communicate with the first cavity 41. This is disclosed when inserting the second preset distance in the first chamber through the radial inboard of fortune oil portion, the one end of fortune oil groove stretches out the intercommunication passageway and gets into in the first chamber, carry lubricating oil in order can following the first chamber, when the radial inboard of fortune oil portion is accomodate in the intercommunication passageway, fortune oil groove can not carry out the fuel feeding this moment, the fuel feeding is only accomplished by fortune oil hole this moment, consequently, fortune oil groove carries out the fuel feeding at first stage, as figure 6, fortune oil hole mainly carries out the fuel feeding at the second stage.

In some embodiments, the body 31 is provided with a mounting groove 35, one end of the oil transportation portion 32 is inserted into the mounting groove 35, and the other end is inserted into the communication channel 44;

a plug 36 is further arranged in the mounting groove 35, and the plug 36 plugs one end of the oil transportation portion 32, which is located in the mounting groove 35.

This openly can be according to the one end of fortune oil portion through the mounting groove to can carry on spacingly to the motion position of fortune oil portion through the end cap, prevent to take place from the phenomenon of deviating from in the mounting groove.

In some embodiments, instead of

embodiments

2 and 3, the oil carrying portion 32 is fixed to the body 31 at one end by means of a hinge or a screw connection, and the other end can be inserted into the communication passage 44. The oil transportation part of the present disclosure can also be fixed on the body in a hinged or threaded manner, and the hinged member 38 and the threaded connecting member 39 can respectively play a role of hinged connection and threaded fixed connection.

In some embodiments, the rotation limiting structure 3 further includes two keys 37, and the length direction of the oil transportation portion 32 and the extending direction of the communication channel 44 are the same as the connecting line direction of the centers of the two keys 37. This is the preferred relation of this disclosure's fortune oil portion and key, and the length direction of fortune oil portion is the same with the line direction of two keys, and this is because the reciprocating motion of cross sliding ring passes through two key card and establishes in the spacing groove on the support, therefore its direction of motion is the direction of the central line of two keys, and the length direction of fortune oil portion is the same with the central line of two keys can make fortune oil portion insert in the intercommunication passageway along with the direction of motion of cross sliding ring, and the intercommunication passageway should also be the same with this direction of motion to satisfy fortune oil portion and insert wherein and reciprocating motion's effect.

Example 2, as shown in fig. 10, in some embodiments, the rotation limiting structure 3 further includes a key 37, the key 37 is connected to the body 31 and extends along an axial direction of the body 31, one end of the oil transportation portion 32 is connected to the key 37, and the other end thereof can be inserted into the communication channel 44. The oil carrying part can be connected to the key of the cross sliding ring, and the position of the key is lower than that of the body, so that the position of the oil carrying part is lower, oil can be sucked when the oil level in the first cavity is lower, and the oil supply effect is improved.

The oil conveying position is changed by lengthening the key length of the cross slip ring and changing the position of the upper bracket opening (the communication channel 44), and effective improvement is provided for the situation that the oil level of a high-pressure oil pool (the first cavity 41) is not full.

The present disclosure also provides an air conditioner, which specifically includes the aforementioned scroll compressor.

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. An oil supply structure of a scroll compressor, characterized in that: the method comprises the following steps:

the vortex compressor comprises an autorotation limiting structure (3) and a support (4), wherein the autorotation limiting structure (3) can perform autorotation limiting on a movable vortex disc (2) of the vortex compressor, the autorotation limiting structure (3) comprises a body (31) and an oil conveying part (32), the oil conveying part (32) is connected with the body (31), the support (4) comprises a first cavity (41), a second cavity (42) and a baffle part (43), the first cavity (41) can accommodate an eccentric part (71) of a crankshaft (7) of the vortex compressor, the second cavity (42) is a backpressure cavity, and the baffle part (43) is positioned between the first cavity (41) and the second cavity (42);

the baffle part (43) is provided with a communication channel (44), the oil conveying part (32) can be inserted into the communication channel (44) and moves along the extension direction of the communication channel (44), the oil conveying part (32) is provided with a plurality of oil conveying holes (33), oil in the first cavity (41) can be guided into the second cavity (42) through the oil conveying holes (33) along with the movement of the oil conveying part (32), and the number of the oil conveying holes (33) for conveying oil is increased along with the increase of the operation frequency of the scroll compressor.

2. The oil supply structure of a scroll compressor according to claim 1, wherein:

the autorotation limiting structure (3) is a cross slip ring, and the oil conveying part (32) is of a cylinder structure.

3. The oil supply structure of a scroll compressor according to claim 1, wherein:

the plurality of oil carrying holes (33) are formed in the lower end surface of the oil carrying portion (32).

4. The oil supply structure of a scroll compressor according to claim 1, wherein:

the plurality of oil carrying holes (33) communicate with the first cavity (41) to carry lubricating oil from the first cavity (41) when a radially inner end of the oil carrying portion (32) is inserted into the first cavity (41) by a first preset distance, and the oil carrying holes (33) can communicate with the second cavity (42) to introduce the carried lubricating oil into the second cavity (42) when the radially inner end of the oil carrying portion (32) is received in the communication passage (44).

5. The oil supply structure of a scroll compressor according to any one of claims 1 to 4, wherein:

oil guide grooves (45) are further formed in the blocking portion (43), the oil guide grooves (45) are communicated with the communication channel (44), one end of the oil guide grooves (45) is communicated with the second cavity (42), and the oil conveying holes (33) can be intermittently communicated with the oil guide grooves (45) in the moving process of the oil conveying portion (32) so as to guide oil into the second cavity (42) through the oil guide grooves (45).

6. The oil supply structure of a scroll compressor according to claim 5, wherein:

the oil carrying hole (33) can carry oil from the first chamber (41) when the oil carrying portion (32) moves to the position where the oil carrying hole (33) is located in the first chamber (41), and the oil carried by the oil carrying hole (33) is introduced into the second chamber (42) via the oil guide groove (45) when the oil carrying portion (32) moves to the position where the oil carrying hole (33) protrudes into the communication passage (44) and the oil carrying hole (33) communicates with the oil guide groove (45).

7. The oil supply structure of a scroll compressor according to any one of claims 1 to 6, wherein:

the oil conveying part (32) is further provided with an oil conveying groove (34), one end of the oil conveying groove (34) can be communicated with the first cavity (41), the other end of the oil conveying groove can be communicated with the second cavity (42), oil in the first cavity (41) can be guided into the second cavity (42) through the oil conveying groove (34), and the oil guiding amount of the oil conveying groove (34) is not changed along with the frequency change of the scroll compressor.

8. The oil supply structure of a scroll compressor according to claim 7, wherein:

the oil conveying groove (34) is arranged on the end face opposite to the end face of the oil conveying hole (33).

9. The oil supply structure of a scroll compressor according to claim 7, wherein:

when the radial inner end of the oil carrying portion (32) is inserted into the first cavity (41) by a second preset distance, one end of the oil carrying groove (34) is communicated with the first cavity (41) and the other end is communicated with the second cavity (42), and when the radial inner end of the oil carrying portion (32) is received in the communication passage (44), the oil carrying groove (34) is not communicated with the first cavity (41).

10. The oil supply structure of a scroll compressor according to claim 1, wherein:

an installation groove (35) is formed in the body (31), one end of the oil conveying part (32) is inserted into the installation groove (35), and the other end of the oil conveying part is inserted into the communication channel (44);

and a plug (36) is further arranged in the mounting groove (35), and the plug (36) plugs one end, located in the mounting groove (35), of the oil conveying part (32).

11. The oil supply structure of a scroll compressor according to claim 1, wherein:

one end of the oil conveying part (32) is fixed on the body (31) through hinge or thread connection, and the other end can be inserted into the communication channel (44).

12. The oil supply structure of a scroll compressor according to claim 1, wherein:

the rotation limiting structure (3) further comprises two keys (37), and the length direction of the oil conveying part (32) and the extending direction of the communication channel (44) are the same as the connecting line direction of the centers of the two keys (37).

13. The oil supply structure of a scroll compressor according to any one of claims 1 to 12, wherein:

the rotation limiting structure (3) further comprises a key (37), the key (37) is connected to the body (31) and extends along the axis direction of the body (31), one end of the oil conveying part (32) is connected to the key (37), and the other end of the oil conveying part can be inserted into the communication channel (44).

14. A scroll compressor characterized by: an oil supply structure including the scroll compressor of any one of claims 1 to 13.

15. An air conditioner, characterized in that: including the scroll compressor of claim 14.