CN210397103U

CN210397103U - Compressor and air conditioner

Info

Publication number: CN210397103U
Application number: CN201921020575.4U
Authority: CN
Inventors: 王朋超
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-04-24
Anticipated expiration: 2029-07-01

Abstract

The utility model discloses a compressor and air conditioner, compressor include the casing, are equipped with the bent axle in the casing, and the up end of bent axle is equipped with first magnet, is equipped with the support frame that is located the bent axle top in the casing, and the lower terminal surface of support frame is equipped with the second magnet corresponding with first magnet, and the magnetism of one side that first magnet is relative with the second magnet is opposite. So set up, first magnet and second magnet magnetic pole produce magnetic field force relatively to make the bent axle obtain an ascending magnetic field appeal, reduced the effort between thrust surface and lower flange terminal surface under the bent axle, and then reduced the consumption that thrust surface and lower flange terminal surface friction produced under the bent axle, also promoted the reliability of compressor to a certain extent, solved among the prior art problem that thrust surface and lower flange terminal surface contact friction influence compressor consumption and compressor reliability under the bent axle.

Description

Compressor and air conditioner

Technical Field

The utility model relates to a compressor technical field, more specifically say, relate to a compressor and air conditioner.

Background

The volume of the volume cavity in the cylinder is changed by the rotation of the crankshaft, so that air suction and exhaust are realized. As shown in FIG. 1, the crankshaft is an important transmission part, and in operation, the lower thrust surface of the crankshaft contacts with the end surface of the lower flange to form a friction pair, which bears the axial force transmitted by the rotor assembly and the crankshaft and is the main load point in the axial direction of the pump body structure of the compressor. During long-term operation of the compressor, the lower thrust surface of the crankshaft is in contact with the end surface of the lower flange to generate friction force, abrasion in different degrees exists, the motor needs to provide larger torque to overcome the friction force, more energy is consumed, the power consumption of the compressor is directly influenced, and even the reliability of the compressor is influenced. Therefore, how to solve the problem that the power consumption and the reliability of the compressor are affected by the contact friction between the lower thrust surface of the crankshaft and the end surface of the lower flange in the prior art becomes an important technical problem to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compressor and air conditioner to thrust surface influences the problem of compressor consumption and compressor reliability with lower flange end face contact friction under the bent axle among the solution prior art.

The utility model aims at realizing through the following technical scheme:

the utility model provides a pair of compressor, which comprises a housin, be equipped with the bent axle in the casing, the up end of bent axle is equipped with first magnet, be equipped with the support frame in the casing, the support frame is located the top of bent axle, the lower terminal surface of support frame be equipped with the corresponding second magnet of first magnet, first magnet with the magnetism of one side that the second magnet is relative is opposite.

Preferably, the lower end surface of the crankshaft is further provided with a third magnet, the inner wall of the bottom of the shell is provided with a fourth magnet corresponding to the third magnet, and the magnetism of the opposite side of the third magnet and the fourth magnet is the same.

Preferably, the inner wall of the bottom of the housing is provided with a support body opposite to the lower end face of the crankshaft, and the fourth magnet is arranged on the upper end face of the support body.

Preferably, the first magnet, the second magnet, the third magnet, and the fourth magnet are all ring magnets.

Preferably, the support body is a hollow structure with a cavity inside, an opening communicated with the cavity is formed in the upper end face of the support body, and an oil inlet communicated with the cavity is formed in the peripheral side wall of the support body.

Preferably, gaps are arranged between the first magnet and the second magnet and between the third magnet and the fourth magnet, and the gaps are 0.05 mm-5 mm.

Preferably, the support frame is provided with an oil discharge hole which is arranged along the axial direction of the support frame in a penetrating manner.

Preferably, the ring magnet is a circular ring magnet, and the outer diameter of the second magnet is larger than that of the first magnet, and the outer diameter of the fourth magnet is larger than that of the third magnet.

Preferably, the ring magnet is composed of at least two fan-shaped unit bodies arranged at intervals.

Preferably, the oil inlet holes are at least two and distributed along the circumferential direction of the support body.

Preferably, the first magnet, the second magnet, the third magnet and the fourth magnet are all permanent magnets.

Preferably, the material of the permanent magnet is neodymium iron boron permanent magnet material.

Preferably, the compressor is a rotary vertical compressor.

The utility model also provides an air conditioner, including the compressor, the compressor be as above arbitrary the compressor.

The utility model provides an among the technical scheme, a compressor includes the casing, is equipped with the bent axle in the casing, and the up end of bent axle is equipped with first magnet, is equipped with the support frame that is located the bent axle top in the casing, and the lower terminal surface of support frame is equipped with the second magnet corresponding with first magnet, and the magnetism of one side that first magnet is relative with the second magnet is opposite. So set up, first magnet and second magnet magnetic pole produce magnetic field force relatively to make the bent axle obtain an ascending magnetic field appeal, reduced the effort between thrust surface and lower flange terminal surface under the bent axle, and then reduced the consumption that thrust surface and lower flange terminal surface friction produced under the bent axle, also promoted the reliability of compressor to a certain extent, solved among the prior art problem that thrust surface and lower flange terminal surface contact friction influence compressor consumption and compressor reliability under the bent axle.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a compressor according to the prior art;

fig. 2 is a schematic structural diagram of a compressor according to an embodiment of the present invention;

FIG. 3 is a partial schematic view of the lower end of the crankshaft in an embodiment of the present invention;

FIG. 4 is a partial schematic view of the upper end of the crankshaft in an embodiment of the present invention;

fig. 5 is a first schematic structural diagram of a ring magnet according to an embodiment of the present invention;

fig. 6 is a second schematic structural view of a ring magnet according to an embodiment of the present invention;

fig. 7 is a third schematic structural diagram of the ring magnet according to the embodiment of the present invention.

In fig. 1-7:

the magnetic engine comprises a shell-1, a crankshaft-2, a first magnet-3, a support frame-4, a second magnet-5, a third magnet-6, a support body-7, a fourth magnet-8, a cavity-9, an oil inlet-10, an oil discharge hole-11 and a sector unit body-12.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

This embodiment provides a compressor and air conditioner, has solved among the prior art problem that the power consumption of compressor and compressor reliability are influenced to thrust surface and lower flange terminal surface contact friction under the bent axle.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

It should be noted that the directions "up" and "down" mentioned herein refer to the arrangement state of the compressor as shown in fig. 2, and the up-down direction in the drawing is the above-mentioned up-down direction, and the positions of the components relatively up in the drawing are the upper end surface and the upper end surface, and the positions of the components relatively down in the drawing are the lower end surface and the lower end surface.

Referring to fig. 1-7, the compressor provided in this embodiment is a rotary vertical compressor, and includes a casing 1, a crankshaft 2 is disposed in the casing 1, generally, the crankshaft 2 is hollow and cylindrical, so as to facilitate normal oil supply for a shaft system, an upper end of the crankshaft 2 is a long shaft end of the crankshaft 2 and is engaged with a motor rotor, and a lower end of the crankshaft 2 is a short shaft end of the crankshaft 2 and is engaged with a pump body assembly. The upper end face of the crankshaft 2 is provided with a first magnet 3, a support frame 4 is arranged in the casing 1, the support frame 4 is positioned above the crankshaft 2, as shown in fig. 2, the inner wall of the casing 1 can be fixedly provided with a connection angle plate through welding, the support frame 4 can be fixedly connected to the connection angle plate through bolts so as to be fixed above the crankshaft 2, and correspondingly, the support frame 4 can be designed to be cylindrical and opposite to the crankshaft 2. The lower end face of the support frame 4 is provided with a second magnet 5 corresponding to the first magnet 3, and the magnetism of the side, opposite to the second magnet 5, of the first magnet 3 is opposite. So set up, through set up first magnet at bent axle major axis tip, set up the support frame in the casing cavity, be equipped with the second magnet at the support frame tip, first magnet is relative with the second magnet, produce magnetic field force, thereby make the bent axle obtain an ascending magnetic field appeal, thereby the gravity of bent axle and electric motor rotor has been alleviateed, the effort between thrust surface and lower flange terminal surface under the bent axle has been reduced, and then the power consumption that thrust surface and lower flange terminal surface friction produced under the bent axle has been reduced, also promoted the reliability and the efficiency level of compressor to a certain extent, the simple structure implements easily, mechanical friction loss has effectively been avoided, the problem that thrust surface and lower flange terminal surface contact friction influence compressor consumption and compressor reliability under the bent axle among the prior art has been solved.

In addition, in the operation process of the compressor, because the motor rotor is sleeved at the long shaft end of the crankshaft, namely the upper end of the crankshaft in fig. 1, and the long shaft of the crankshaft is a cantilever beam, the long shaft end of the crankshaft can generate deflection due to the relation of centrifugal force when the compressor operates at high speed to bend, so that the operation of the compressor is not stable, the contact part of the long shaft end of the crankshaft and the upper flange can generate abrasion, the problem that the long shaft end of the crankshaft can generate deflection due to the relation of centrifugal force when the compressor operates at high speed can be solved by arranging the first magnet and the second magnet, and the upward magnetic field attraction force generated between the first magnet and the second magnet, so that the problem that the contact part of the crankshaft on the long.

Further, the lower end surface of the crankshaft 2 is further provided with a third magnet 6, the inner wall of the bottom of the housing 1 is provided with a fourth magnet 8 corresponding to the third magnet 6, and the magnetism of the side, opposite to the fourth magnet 8, of the third magnet 6 is the same. So set up, the third magnet is relative with the fourth magnet magnetic pole, produce magnetic field force, make the bent axle obtain an ascending magnetic field repulsion force, thereby the gravity of bent axle and electric motor rotor has been alleviateed, the effort between thrust surface and lower flange terminal surface under the bent axle has been reduced, and then the consumption that thrust surface and lower flange terminal surface friction produced under the bent axle, also promoted the reliability and the whole machine performance of compressor to a certain extent, this simple structure implements easily, mechanical friction loss has effectively been avoided, the problem that thrust surface and lower flange terminal surface contact friction influence compressor consumption and compressor reliability under the bent axle among the prior art has further been solved. It should be noted that reference herein to the "bottom" of the shell is to the relatively lower position of the shell of the compressor as shown in fig. 2.

Because the bottom of the shell 1 in fig. 1 is an arc-shaped shell, and the distance between the bottom of the shell 1 and the lower end surface of the crankshaft 1 is relatively large, in order to enable the third magnet 6 and the fourth magnet 8 to better play a role in reducing power consumption, the inner wall of the bottom of the shell 1 is provided with a support body 7 opposite to the lower end surface of the crankshaft 2, and the fourth magnet 8 is arranged on the upper end surface of the support body 7. Set up like this, the supporter supports the fourth magnet, makes it more be close to the third magnet, and magnetic field force is stronger, and the effect of offsetting bent axle and electric motor rotor gravity is better. Alternatively, as shown in fig. 2, the support body 7 may be fixedly connected to the inner wall of the bottom of the housing 1 by bolts, and accordingly, the support body 7 may also be designed to be cylindrical, opposite to the crankshaft 2.

In the present embodiment, the first magnet 3, the second magnet 5, the third magnet 6, and the fourth magnet 8 are all ring magnets. The arrangement is characterized in that the middle part of the magnet is of a hollow structure, so that the magnet is convenient to be matched with a crankshaft, the whole oil supply of a compressor shaft system is not influenced, the mass of the magnet is reduced, and the unnecessary energy loss of the compressor is reduced.

In a preferred embodiment of the present invention, as shown in fig. 3, the supporting body 7 is a hollow structure having a cavity 9 therein, an upper end surface of the supporting body 7 is provided with an opening communicating with the cavity 9, and a peripheral side wall of the supporting body 7 is provided with an oil inlet 10 communicating with the cavity 9. Like this, the lubricating oil of casing bottom can flow into the inside cavity of supporter, because the supporter is relative with the bent axle, the lubricating oil flow direction bent axle of being convenient for to the confession oil of subassembly such as better realization to the pump body. Preferably, the oil inlet holes 10 are at least two and are uniformly distributed along the circumferential direction of the supporting body 7, so that the lubricating oil around the supporting body can be quickly introduced into the cavity, and the hollow structure of the crankshaft can absorb oil.

In order to generate enough magnetic field force between the magnets, gaps are arranged between the first magnet 3 and the second magnet 5 and between the third magnet 6 and the fourth magnet 8, and the size of the gap is 0.05 mm-5 mm. As shown in fig. 3, the gap between the third magnet 6 and the fourth magnet 8 is d1, and as shown in fig. 4, the gap between the first magnet 3 and the second magnet 5 is d 2. If d1 and d2 are too small, impurities in the compressor enter between the two magnets, friction is generated between the magnets, the magnets are abraded, the power consumption of the compressor is increased due to the increase of friction force, and the efficiency of the compressor is further influenced; if d1 and d2 are too large, the attractive force/repulsive force between the magnets will drop sharply, which results in too small supporting force and attractive force for the crankshaft, and the magnetic field force is not enough to offset the gravity applied to the crankshaft and the rotor assembly sleeved thereon. Therefore, when the d1 and the d2 are in the range of 0.05 mm-5 mm, enough magnetic field force can be provided, the power consumption of the compressor is reduced, and the reliability of the compressor is improved.

In the present embodiment, the support frame 4 is provided with an oil drain hole 11 penetrating in the axial direction of the support frame 4. As shown in fig. 4, an oil drain hole 11 may be provided at the center of the support frame 4 to facilitate the discharge of the crankshaft lubricant. In addition, the side wall of the long shaft end of the crankshaft can be provided with a through hole, so that crankshaft lubricating oil can be conveniently discharged.

In an alternative embodiment, the first magnet 3, the second magnet 5, the third magnet 6 and the fourth magnet 8 are all circular ring magnets, and the outer diameter of the second magnet 5 is larger than that of the first magnet 3, and the outer diameter of the fourth magnet 8 is larger than that of the third magnet 6. Therefore, the outer edge of the magnet on the crankshaft can be ensured to be always positioned in the action range of the magnet on the support body and the support frame, and the outer edge of the crankshaft can still receive enough supporting force and attraction force. In addition, the inner diameters of the third magnet 6 and the fourth magnet 8 are determined according to the size of the hollow structure at the short shaft end of the crankshaft, and the size of the opening of the upper end surface of the supporting body 7 and the size of the cavity 9 can be the same as the size of the inner diameter of the fourth magnet 8; the inner diameters of the first magnet 3 and the second magnet 5 are determined according to the size of a hollow structure at the long shaft end of a crankshaft, and the size of the oil drain hole 11 can be the same as the size of the inner diameter of the second magnet 5; therefore, the situation that the magnet shields the hollow structure of the crankshaft to influence oil supply can be avoided, and each magnet is effectively supported and fixed more firmly.

When the force between the interacting magnets is uneven, the magnets may be broken or crushed, and therefore, in the embodiment of the present invention, the ring magnet is composed of at least two fan-shaped unit bodies 12 arranged at intervals. As shown in fig. 5-7, the ring magnet is composed of two, three or four fan-shaped unit bodies 12, and each fan-shaped unit body 12 is uniformly distributed to form a ring-shaped structure. Of course, in other embodiments, the number of the fan-shaped unit bodies 12 may be changed according to the assembly size of the crankshaft 2, the supporting frame 4 and the supporting body 7. Therefore, the situation that the magnetic force is influenced by fragments formed by the fact that the complete magnet is stressed unevenly can be avoided, the crankshaft is guaranteed to be subjected to uniform and stable magnetic force, and therefore friction force between the crankshaft and the flange end face is reduced.

In the embodiment, the first magnet 3, the second magnet 5, the third magnet 6 and the fourth magnet 8 are all permanent magnets, so that the magnetism of the magnets can be kept for a long time, the service life is long, frequent replacement is not needed, and the use reliability of the compressor is kept. The permanent magnet is made of a neodymium iron boron permanent magnet material, has a large magnetic energy product, generates a magnetic field force, and has a good effect and excellent magnetic performance. In addition, each magnet can also be a magnet with a magnetic layer on the surface, as long as enough magnetic field force can be generated to meet the use requirement.

The embodiment also provides an air conditioner, which comprises a compressor, wherein the compressor is the compressor described above.

It should be noted that, devices or components with different functions in the above embodiments may be combined, for example, in a preferred embodiment of the present invention, the compressor is a rotary vertical compressor, and includes a casing 1, a crankshaft 2 is disposed in the casing 1, an upper end surface of the crankshaft 2 is provided with a first magnet 3, a support frame 4 is disposed in the casing 1, the support frame 4 is located above the crankshaft 2, a lower end surface of the support frame 4 is provided with a second magnet 5 corresponding to the first magnet 3, the magnetism of the opposite side of the first magnet 3 and the second magnet 5 is opposite, and the support frame 4 is provided with an oil drain hole 11 that is arranged to penetrate through in the axial direction of the support frame 4. The lower end face of the crankshaft 2 is also provided with a third magnet 6, the inner wall of the bottom of the shell 1 is provided with a support body 7 opposite to the lower end face of the crankshaft 2, the upper end face of the support body 7 is provided with a fourth magnet 8 corresponding to the third magnet 6, and the magnetism of the opposite side of the third magnet 6 and the fourth magnet 8 is the same. The support body 7 is a hollow structure with a cavity 9 inside, the upper end face of the support body 7 is provided with an opening communicated with the cavity 9, and the peripheral side wall of the support body 7 is provided with an oil inlet 10 communicated with the cavity 9. The oil inlet holes 10 are at least two and are uniformly distributed along the circumferential direction of the support body 7.

In this embodiment, the first magnet 3, the second magnet 5, the third magnet 6 and the fourth magnet 8 are all circular ring magnets, and the outer diameter of the second magnet 5 is larger than that of the first magnet 3, and the outer diameter of the fourth magnet 8 is larger than that of the third magnet 6. Each magnet consists of at least two fan-shaped unit bodies 12 arranged at intervals, and is a permanent magnet made of neodymium iron boron permanent magnet material. Gaps are arranged between the first magnet 3 and the second magnet 5 and between the third magnet 6 and the fourth magnet 8, and the gaps are 0.05 mm-5 mm.

So arranged, the first magnet is opposite to the second magnet in magnetic pole to generate magnetic field force, so that the crankshaft obtains an upward magnetic attraction force, the third magnet is opposite to the fourth magnet to generate magnetic field force, so that the crankshaft obtains an upward magnetic repulsion force, thereby reducing or offsetting the gravity action of the crankshaft and the motor rotor, reducing the acting force between the lower thrust surface of the crankshaft and the end surface of the lower flange, thereby reducing the power consumption generated by the friction between the lower thrust surface of the crankshaft and the end surface of the lower flange, simultaneously solving the problems that the long shaft end of the crankshaft bends due to the deflection caused by the centrifugal force when the compressor runs at a high speed and the contact part of the long shaft end of the crankshaft and the upper flange is abraded, improving the reliability and the energy efficiency level of the compressor to a certain extent, the structure is simple and easy to implement, mechanical friction loss is effectively avoided, and the problem that the power consumption of the compressor and the reliability of the compressor are influenced by the contact friction between the lower thrust surface of the crankshaft and the end surface of the lower flange in the prior art is solved.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a compressor, its characterized in that, includes casing (1), be equipped with bent axle (2) in casing (1), the up end of bent axle (2) is equipped with first magnet (3), be equipped with support frame (4) in casing (1), support frame (4) are located the top of bent axle (2), the lower terminal surface of support frame (4) be equipped with the corresponding second magnet (5) of first magnet (3), first magnet (3) with the magnetism of one side that second magnet (5) are relative is opposite.

2. The compressor according to claim 1, wherein the lower end surface of the crankshaft (2) is further provided with a third magnet (6), the inner wall of the bottom of the housing (1) is provided with a fourth magnet (8) corresponding to the third magnet (6), and the third magnet (6) has the same magnetism on the side opposite to the fourth magnet (8).

3. The compressor according to claim 2, wherein the inner wall of the bottom of the housing (1) is provided with a support body (7) located opposite to the lower end surface of the crankshaft (2), and the fourth magnet (8) is provided on the upper end surface of the support body (7).

4. Compressor according to claim 3, characterized in that said first magnet (3), said second magnet (5), said third magnet (6) and said fourth magnet (8) are all annular magnets.

5. The compressor according to claim 4, wherein the support body (7) is a hollow structure having a cavity (9) therein, an upper end surface of the support body (7) is provided with an opening communicating with the cavity (9), and a peripheral side wall of the support body (7) is provided with an oil inlet hole (10) communicating with the cavity (9).

6. The compressor according to claim 2, characterized in that gaps are provided between the first magnet (3) and the second magnet (5) and between the third magnet (6) and the fourth magnet (8), said gaps being comprised between 0.05 mm and 5 mm.

7. Compressor according to claim 4, characterized in that said support frame (4) is provided with an oil drain hole (11) arranged through in the axial direction of said support frame (4).

8. Compressor according to claim 4, characterized in that said ring magnet is a circular ring magnet and in that the outer diameter of said second magnet (5) is greater than the outer diameter of said first magnet (3) and in that the outer diameter of said fourth magnet (8) is greater than the outer diameter of said third magnet (6).

9. Compressor according to claim 4, characterized in that said ring magnet is composed of at least two sector-shaped unit bodies (12) arranged at intervals.

10. The compressor according to claim 5, characterized in that said oil inlet holes (10) are at least two and are distributed along the circumferential direction of said supporting body (7).

11. Compressor according to claim 2, characterized in that said first magnet (3), said second magnet (5), said third magnet (6) and said fourth magnet (8) are all permanent magnets.

12. The compressor of claim 11, wherein the material of the permanent magnet is a neodymium iron boron permanent magnet material.

13. A compressor according to any one of claims 1 to 12, wherein the compressor is a rotary vertical compressor.

14. An air conditioner comprising a compressor, wherein the compressor is as claimed in any one of claims 1 to 13.