CN111293802A

CN111293802A - Compressor and refrigeration equipment

Info

Publication number: CN111293802A
Application number: CN202010119228.8A
Authority: CN
Inventors: 张洋洋; 林淑敏; 王中泉; 陈振华
Original assignee: Anhui Meizhi Precision Manufacturing Co Ltd
Current assignee: Anhui Meizhi Precision Manufacturing Co Ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-06-16

Abstract

The present invention provides a compressor and a refrigerating apparatus, the compressor including: a housing; the pump body assembly is arranged in the shell and comprises a crankshaft and an upper bearing; a motor assembly disposed within the housing, the motor assembly configured to drive the pump body assembly; the motor assembly includes: the stator assembly is fixed on the upper bearing; the rotor assembly is connected with the crankshaft, the rotor assembly drives the crankshaft to rotate and compress, and the rotor assembly is arranged in the axial direction of the stator assembly. According to the compressor provided by the invention, the stator assembly is directly fixed on the upper bearing, so that the stress of the stator assembly is reduced, the electromagnetic noise is reduced, the performance of the motor assembly is improved, and the performance of the compressor is improved; the rotor subassembly sets up in stator module's axial direction, with rotor subassembly and stator module flattening design for motor element itself is high lower, and its stator module and the rotor subassembly of flattening are like the dish, realize the miniaturized design of product.

Description

Compressor and refrigeration equipment

Technical Field

The invention relates to the technical field of compressors, in particular to a compressor and refrigeration equipment.

Background

As shown in fig. 1, the basic structure of the prior art compressor 100 'is generally that the motor is located on top and the pump body is located on the bottom, within a closed housing 110'. The motor comprises a rotor assembly 140 ' and a stator assembly 130 ' which are sleeved in the inner and outer radial directions, the stator assembly 130 ' is fixed in the shell in a hot sleeved mode, and the rotor assembly 140 ' is connected with the crankshaft 121 ' in a hot sleeved mode to further drive the pump body to compress. The motor with the radially nested rotor assembly 140 ' and stator assembly 130 ' has a large height, and an upper counterweight balance block and a lower counterweight balance block are required, so that the compressor 100 ' has a large height and a high center of gravity, and is not beneficial to vibration.

At present, miniaturization is an important development direction of compressors and even air conditioners, and increasingly higher requirements are put on the structural compactness of the compressors. The compressor flattening design is a development direction of a future miniaturized and low-vibration compressor, and is also an important path for realizing the miniaturization of an air conditioner external unit.

Therefore, how to provide a compressor with small size, low height and low vibration is a technical problem to be solved urgently.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art.

To this end, a first aspect of the present invention provides a compressor.

In a second aspect, the present invention provides a refrigeration apparatus.

In view of this, according to a first aspect of the present invention, there is provided a compressor comprising: a housing; the pump body assembly is arranged in the shell and comprises a crankshaft and an upper bearing; a motor assembly disposed within the housing, the motor assembly configured to drive the pump body assembly; the motor assembly includes: the stator assembly is fixed on the upper bearing; the rotor assembly is connected with the crankshaft, the rotor assembly drives the crankshaft to rotate and compress, and the rotor assembly is arranged in the axial direction of the stator assembly.

The compressor provided by the invention comprises a shell, a pump body assembly and a motor assembly, wherein the pump body assembly comprises a crankshaft and an upper bearing, the motor assembly comprises a stator assembly and a rotor assembly, the stator assembly is fixed on the upper bearing, and the fixing step of the stator assembly is simplified; further, the rotor subassembly is connected with the bent axle, the rotor subassembly can drive the bent axle and carry out rotatory compression, concretely, the rotor subassembly sets up in stator module's axial direction, that is, the rotor subassembly distributes on one side or both sides on stator module's axial direction, stator module drive rotor subassembly rotates, concretely, rotor subassembly and stator module flattening design, make motor element height itself lower, its stator module and rotor subassembly of flattening are like the plate, combine pump body subassembly to carry out axial or radial gomphosis design again, make motor element's height and compressor's height all very showing and reduce, realize the miniaturized design of product.

In addition, the compressor in the above technical solution provided by the present invention may further have the following additional technical features:

in the above technical solution, further, the stator assembly includes: a stator core group; and the stator bracket is connected with the stator core group, is connected with the upper bearing and is abutted against the upper bearing.

In this technical scheme, stator module includes stator core group and stator support, stator support is connected with stator core group, stator support is connected and butt in the upper bearing with the upper bearing, specifically speaking, can set up fixed knot to construct on stator support, make stator support can fix on the upper bearing, thereby make the stator core group that is connected with stator support also fix on the upper bearing, also, that is, stator module's fixing has been realized through being connected of stator support and upper bearing, therefore the whole contactless with the casing of motor element, it is fixed with motor element and casing to need not to adopt the heat jacket mode among the correlation technique, make stator module's fixed mode simple. Further, the stator support is arranged to abut against the upper bearing, namely the upper bearing can provide support for the stator support, so that the stator support is more stable to fix. Specifically, the stator core group and the stator bracket can be fixed by injecting glue, for example, the stator core group and the stator bracket are fixed into a whole by injecting epoxy resin.

In any of the above technical solutions, further, the stator bracket is annular, the stator core group is fixed in the inner ring of the stator bracket, and the stator bracket is provided with a first fixing hole, a wire outlet hole and an air flow passage; the pump body subassembly still includes: the supporting part is arranged on the upper bearing, and the stator bracket is abutted to the upper end surface of the supporting part; the second fixing hole is arranged on the supporting part and corresponds to the first fixing hole; and the connecting piece penetrates through the first fixing hole and extends into the second fixing hole to connect the stator bracket and the supporting part.

In this technical scheme, stator support is cyclic annular, and stator core group is fixed in cyclic annular stator support's inner circle, and specifically, stator module includes stator core group and the stator support of piecemeal to fixed an organic whole through the mode of epoxy injecting glue. Be equipped with first fixed orifices on the stator support, wire hole and air current channel, be equipped with the supporting part on the upper bearing, the supporting part can be the convex protruding structure that makes progress, stator support butt is on the up end of supporting part, be equipped with on the supporting part with first fixed orifices second fixed orifices relatively, the connecting piece runs through first fixed orifices and stretches into in the second fixed orifices, with connect stator support and supporting part, specifically, the connecting piece can be the screw, parts such as bolt, screw connection has with low costs, can dismantle, be convenient for advantages such as the maintenance of follow-up product.

In any of the above solutions, further, the rotor assembly includes: a first rotor disc provided at one side of the stator assembly in an axial direction; a second rotor disk disposed at the other side in the axial direction of the stator assembly; and the rotor bracket component is connected with the first rotor disc and the second rotor disc, and is sleeved on the crankshaft and can drive the crankshaft to rotate.

In this technical scheme, the rotor subassembly includes first rotor dish, second rotor dish and rotor bracket component, wherein, first rotor dish sets up the one side on stator module's axial direction, the second rotor dish sets up the opposite side on stator module's axial direction, through set up first rotor dish and second rotor dish respectively in stator module's both sides, make motor element form the symmetrical design that has two rotor dishes, can offset the axial magnetic pull force between stator module and the rotor subassembly, reduce the axial force that the bent axle bore, this will help reducing the thrust on the bent axle end of compressor, and then reduce the spin friction loss, improve the efficiency of compressor. Furthermore, the rotor support assembly is connected with the first rotor disc and the second rotor disc, so that the rotor support assembly is connected with the first rotor disc and the second rotor disc into a whole, the rotor support assembly is sleeved on the crankshaft and can drive the crankshaft to rotate, the crankshaft is driven to rotate through the rotor support assembly, the rotor assembly is simple to connect with the crankshaft, a connecting structure is not required to be arranged on the first rotor disc and the second rotor disc, and the structures of the first rotor disc and the second rotor disc are simplified.

In any of the above technical solutions, further, the upper portion of the crankshaft is provided with a tangential plane extending downward from the top surface of the crankshaft; at least part of the structure of the rotor bracket assembly is matched with the tangent plane to prevent the rotor bracket assembly from rotating relative to the crankshaft.

In this technical scheme, be equipped with on rotor bracket component and bent axle and prevent rotor bracket component for bent axle pivoted structure for rotor bracket component can drive the bent axle and rotate, specifically, be equipped with the tangent plane by the top surface downwardly extending of bent axle on the upper portion of bent axle, the setting up of tangent plane makes at least partly lateral wall of bent axle form non-circular structure, rotor bracket component's at least partial structure and tangent plane looks adaptation, make the cover that rotor bracket component can be firm establish on the bent axle, thereby prevent rotor bracket component for bent axle radial rotation.

In any of the above solutions, further, the rotor support assembly comprises: the rotor support comprises a rotor support body, wherein a mounting groove is formed in the rotor support body; the gasket, the outline limit of gasket is non-circular structure, and the gasket card is established in the mounting groove, is equipped with first through-hole on the gasket, and the bent axle is arranged in first through-hole, and the tangent plane looks adaptation of part and bent axle of first through-hole.

In the technical scheme, the rotor support assembly comprises a rotor support body and a gasket, wherein a mounting groove is formed in the rotor support body and is matched with the gasket, the gasket is clamped in the mounting groove, and the outer contour edge of the gasket is of a non-circular structure and can be prevented from rotating in the mounting groove; further, be equipped with first through-hole on the gasket, the bent axle is arranged in first through-hole, the part of first through-hole and the tangent plane looks adaptation of bent axle, also, first through-hole is non-circular, and the tangent plane butt of bent axle makes the gasket can drive the bent axle and rotate in first through-hole, also promptly, will prevent that the rotor bracket subassembly from setting up on the gasket for bent axle pivoted structure, need not to set up on the rotor bracket body again and prevents the rotation structure for the simple structure of rotor bracket body, easily processing production.

Specifically, the outer contour of the gasket may be a polygon such as a rectangle, a triangle, a pentagon, or the like, or a boss is protruded outward on the basis of a circle.

In any of the above technical solutions, further, the compressor further includes: the top surface of the crankshaft is provided with a threaded hole, and the crankshaft and the gasket are axially fixed by the fixing piece; and the pressing sheet is arranged between the fixing piece and the gasket.

In this technical scheme, the compressor still includes mounting and pressfitting piece, and mounting and pressfitting piece are used for fixing gasket and bent axle in the axial direction of bent axle, prevent that the gasket from breaking away from the bent axle in the axial direction. Specifically, be equipped with the screw hole on the top surface of bent axle, the mounting can be the screw, and in the one end screw in screw hole of screw, the nut pushed down the gasket in order to fix the gasket on bent axle, and further, set up the laminating piece between the nut of screw and gasket, the area of contact of laminating piece and gasket is big for the installation of gasket is more firm.

In any of the above technical solutions, further, the rotor support assembly is in interference fit with the crankshaft, or the rotor support assembly is in clearance fit with the crankshaft, and the fit length of the rotor support assembly and the crankshaft in the axial direction is greater than or equal to 10 mm.

In this technical scheme, rotor bracket component and bent axle interference fit, interference fit makes the rotor bracket component after the assembly high with the axiality of bent axle, and the assembly deviation is little to make the bent axle the equilibrium of rotatory in-process good. The rotor bracket component and the crankshaft can be in clearance fit, and the clearance fit is convenient to disassemble, is beneficial to subsequent maintenance of products, and is easy to assemble. Further, rotor bracket component and bent axle cooperation length more than or equal to 10mm on the axial direction for rotor bracket component has sufficient height and bent axle to support each other, thereby can guarantee the straightness that hangs down behind rotor bracket component and the bent axle installation, makes the rotation of bent axle more steady.

In any of the above technical solutions, further, a stopping portion is disposed on the crankshaft, the rotor bracket assembly is sleeved on the crankshaft, and a part of the structure of the rotor bracket assembly abuts against the stopping portion.

In this technical scheme, be equipped with the backstop portion that is used for rotor bracket assembly axial positioning on the bent axle, rotor bracket assembly's partial structure butt in backstop portion to make rotor bracket assembly installation back fixed for the axial position of bent axle, and then realized the fixed of whole rotor assembly for the position of bent axle, again because the upper bearing is fixed for the position of bent axle, stator module and upper bearing fixed connection, thereby can ensure to have reasonable axial clearance between rotor assembly and the stator module.

In any of the above technical solutions, further, the stator assembly is disc-shaped, and the rotor assembly is disc-shaped.

In this technical scheme, stator module and rotor subassembly all are the disciform, and disciform stator module and rotor subassembly height are little, and occupation space is little in the axial direction for motor element's height and compressor's height all have very showing to reduce, realize miniaturized design. Meanwhile, the radius and the mass of the disc-shaped rotor component are larger, the rotational inertia is obviously higher than that of a motor component in which an inner rotor and an outer stator are radially sleeved in the related technology, the torque fluctuation is smaller, the stable operation of the compressor is facilitated, and particularly, the vibration and the noise are obviously improved under the low-frequency condition.

In any of the above technical solutions, further, the pump body assembly further includes: the cylinder is provided with an accommodating cavity; a piston disposed in the accommodating chamber; the sliding sheet is arranged in the accommodating cavity and divides the accommodating cavity to form a compression cavity and a suction cavity; the lower bearing is arranged below the cylinder, the upper bearing is arranged above the cylinder, and the crankshaft penetrates through the upper bearing, the cylinder and the lower bearing.

In this technical scheme, pump body subassembly still includes cylinder, piston, gleitbretter and lower bearing, and wherein, be equipped with on the cylinder and hold the chamber, piston and gleitbretter setting are holding in the chamber, and the gleitbretter will hold the chamber and separate and form compression chamber and the chamber of breathing in, and upper bearing and lower bearing set up respectively in the upper and lower both sides of cylinder, and the bent axle runs through upper bearing, cylinder and lower bearing, thereby the rotor subassembly is connected with the bent axle and drives the bent axle and rotate and realize rotary compression. Specifically, the bent axle includes long axial region, short axial region and eccentric portion, and the eccentric portion of bent axle is arranged in holding the chamber of cylinder, drives the piston motion, and then realizes breathing in and compression motion.

In any of the above technical solutions, further, the compressor further includes: the spring hole is arranged on the cylinder; a spring disposed in the spring hole; the baffle is connected with the air cylinder and used for plugging the spring hole so as to fix the spring in the spring hole.

In the technical scheme, the cylinder is provided with the spring hole, the spring is installed in the spring hole, and the baffle blocks the spring hole, so that the spring is fixed in the spring hole. Specifically, screw holes are arranged on the periphery of the cylinder and beside the spring hole, and the baffle is locked on the cylinder through screws and used for fixing the spring; or the baffle plate is welded on the cylinder, and the purpose of fixing the spring can be realized.

In any of the above technical solutions, further, the compressor is a rotary compressor.

In the technical scheme, the compressor is specifically a rotary compressor which is widely applied to refrigeration equipment such as air conditioners, refrigerators and the like, and has the advantages of stable compression work, high compression efficiency, few parts, small volume, light weight, good balance performance, low noise and the like. The compressor provided by the invention can further reduce the volume of the rotary compressor, and is beneficial to the miniaturization of products.

The second aspect of the present invention provides a refrigeration apparatus, including the compressor in any one of the above technical solutions, so that the refrigeration apparatus provided by the present invention has all the advantages of the compressor provided in any one of the above technical solutions.

The refrigeration equipment applying the compressor of the invention can change the installation mode of the compressor in the refrigeration equipment along with the change of the overall dimension of the compressor, for example, when the compressor is applied to an air conditioner outdoor unit, the compressor and a fan can be installed side by side, the placing space of the compressor is reduced, the air inlet channel of an air conditioner radiator is improved, the size of a shell of the air conditioner outdoor unit is reduced to a greater extent, and the miniaturization of a product is realized.

It can be understood that the compressor defined by said invention has better vibration noise and efficiency, and is a development direction for miniaturization of rotary compressor in future. Meanwhile, when the compressor defined by the invention is applied to the air conditioner outdoor unit, the installation space requirement of the compressor in the air conditioner outdoor unit is reduced, the air inlet channel of the air conditioner radiator is improved, and the miniaturization of the air conditioner outdoor unit is facilitated.

Specifically, the refrigeration equipment provided by the invention is an air conditioner or a heat pump system and the like.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view showing a structure of a compressor in the related art;

fig. 2 shows a schematic configuration of a compressor according to an embodiment of the present invention;

FIG. 3 illustrates a partial structural schematic view of a rotor assembly of a compressor in accordance with one embodiment of the present invention;

FIG. 4 illustrates another partial structural schematic view of a rotor assembly of a compressor in accordance with one embodiment of the present invention;

FIG. 5 illustrates a structural schematic view of a stator assembly of a compressor in accordance with one embodiment of the present invention;

fig. 6 is a schematic view illustrating a structure of a stator core assembly of a compressor according to an embodiment of the present invention;

FIG. 7 illustrates a schematic structural view of a crankshaft of the compressor according to one embodiment of the present invention;

FIG. 8 illustrates a structural view of a gasket of a compressor according to an embodiment of the present invention;

fig. 9 shows a schematic cross-sectional view of a cylinder of a compressor according to an embodiment of the present invention.

Wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is:

100 ' compressor, 110 ' housing, 121 ' crankshaft, 130 ' stator assembly, 140 ' rotor assembly.

Wherein, the correspondence between the reference numbers and the part names in fig. 2 to 9 is:

100 compressor, 110 shell, 120 pump body assembly, 121 crankshaft, 122 upper bearing, 123 support part, 124 lower bearing, 125 cylinder, 126 piston, 127 tangent plane, 128 stop part, 130 stator assembly, 132 stator core assembly, 134 stator support, 140 rotor assembly, 141 first rotor disc, 142 second rotor disc, 143 rotor support body, 144 gasket, 145 fixed part, 146 press-fit piece, 150 spring, 160 baffle.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

A compressor and a refrigeration apparatus provided according to some embodiments of the present invention are described below with reference to fig. 2 to 9.

Example one

As shown in fig. 2, according to a first aspect of the present invention, the present invention provides a compressor 100, the compressor 100 includes a housing 110, a pump body assembly 120 and a motor assembly, the pump body assembly 120 includes a crankshaft 121 and an upper bearing 122; the motor assembly includes a stator assembly 130 and a rotor assembly 140, the stator assembly 130 is fixed on the upper bearing 122, the rotor assembly 140 is connected with the crankshaft 121, the rotor assembly 140 drives the crankshaft 121 to rotate and compress, and the rotor assembly 140 is disposed in an axial direction of the stator assembly 130.

The compressor 100 provided by the invention comprises a shell 110, a pump body assembly 120 and a motor assembly, wherein the pump body assembly 120 comprises a crankshaft 121 and an upper bearing 122, the motor assembly comprises a stator assembly 130 and a rotor assembly 140, the stator assembly 130 is fixed on the upper bearing 122, and the fixing step of the stator assembly 130 is simplified; further, the rotor assembly 140 is connected to the crankshaft 121, the rotor assembly 140 can drive the crankshaft 121 to rotate and compress, specifically, the rotor assembly 140 is disposed in an axial direction of the stator assembly 130, that is, the rotor assembly 140 is distributed on one side or two sides of the stator assembly 130 in the axial direction, the stator assembly 130 drives the rotor assembly 140 to rotate, specifically, the rotor assembly 140 and the stator assembly 130 are designed to be flat, so that the height of the motor assembly is low, the flat stator assembly 130 and the rotor assembly 140 are like a plate, and the pump body assembly 120 is combined to perform an axial or radial embedding design, so that the height of the motor assembly and the height of the compressor 100 are both significantly reduced, and a product miniaturization design is achieved.

Further, as shown in fig. 2, 3, 4, 5, and 6, the stator assembly 130 has a disk shape and the rotor assembly 140 has a disk shape. By arranging the stator assembly 130 and the rotor assembly 140 to be both in a disc shape, the disc-shaped stator assembly 130 and the disc-shaped rotor assembly 140 are small in height and small in occupied space in the axial direction, so that the height of the motor assembly and the height of the compressor 100 are remarkably reduced, and the miniaturization design is realized. Meanwhile, the radius and mass of the disc-shaped rotor assembly 140 are large, the rotational inertia is also obviously higher than that of a motor assembly in which an inner rotor and an outer stator are radially sleeved in the related art, the torque fluctuation is smaller, the stable operation of the compressor 100 is facilitated, and particularly, the vibration and the noise are obviously improved under the low-frequency condition.

Example two

On the basis of the first embodiment, further, as shown in fig. 5 and 6, the stator assembly 130 includes a stator core group 132 and a stator bracket 134, the stator bracket 134 is connected with the stator core group 132, the stator bracket 134 is connected with the upper bearing 122 and abuts against the upper bearing 122, specifically, a fixing structure may be disposed on the stator bracket 134, so that the stator bracket 134 can be fixed on the upper bearing 122, so that the stator core group 132 connected with the stator bracket 134 is also fixed on the upper bearing 122, that is, the stator assembly 130 is fixed by the connection of the stator bracket 134 and the upper bearing 122, and thus the whole motor assembly is not in contact with the housing 110, and the motor assembly and the housing 110 do not need to be fixed by a thermal sleeve method in the related art, so that the fixing method of the stator assembly 130 is simple. Further, the stator bracket 134 is disposed to abut against the upper bearing 122, that is, the upper bearing 122 can provide a support for the stator bracket 134, so that the fixation of the stator bracket 134 is more stable. Specifically, the stator core assembly 132 and the stator bracket 134 may be adhesively fixed by injecting glue, for example, the stator core assembly 132 and the stator bracket 134 are integrally fixed by injecting epoxy resin.

Further, as shown in fig. 5 and 6, the stator bracket 134 is annular, and the stator core assembly 132 is fixed in the inner ring of the annular stator bracket 134, specifically, the stator assembly 130 includes the stator core assembly 132 and the stator bracket 134 which are divided and fixed into a whole by means of epoxy glue injection. Be equipped with first fixed orifices on stator support 134, wire hole and air current channel, be equipped with supporting part 123 on upper bearing 122, supporting part 123 can be the convex protruding structure of upwards, stator support 134 butt is on the up end of supporting part 123, be equipped with the second fixed orifices relative to first fixed orifices on supporting part 123, the connecting piece runs through first fixed orifices and stretches into in the second fixed orifices, with connecting stator support 134 and supporting part 123, concretely, the connecting piece can be the screw, parts such as bolt, screw connection has with low costs, can dismantle, be convenient for advantages such as the maintenance of follow-up product.

EXAMPLE III

On the basis of any of the above embodiments, further, as shown in fig. 2, 3 and 4, the rotor assembly 140 includes: a first rotor disc 141 provided at one side in an axial direction of the stator assembly 130; a second rotor disk 142 disposed at the other side in the axial direction of the stator assembly 130; and the rotor support assembly is connected with the first rotor disc 141 and the second rotor disc 142, and the rotor support assembly is sleeved on the crankshaft 121 and can drive the crankshaft 121 to rotate.

In this embodiment, the rotor assembly 140 includes a first rotor disc 141, a second rotor disc 142 and a rotor support assembly, wherein the first rotor disc 141 is disposed on one side of the stator assembly 130 in the axial direction, the second rotor disc 142 is disposed on the other side of the stator assembly 130 in the axial direction, and the first rotor disc 141 and the second rotor disc 142 are disposed on two sides of the stator assembly 130, respectively, so that the motor assembly forms a symmetrical design with two rotor discs, which can counteract the axial magnetic pull between the stator assembly 130 and the rotor assembly 140, reduce the axial force borne by the crankshaft 121, and help to reduce the thrust on the end of the crankshaft 121 of the compressor 100, thereby reducing the rotational friction loss and improving the efficiency of the compressor 100. Further, the rotor support assembly is connected with the first rotor disc 141 and the second rotor disc 142, so that the rotor support assembly is connected with the first rotor disc 141 and the second rotor disc 142 into a whole, the rotor support assembly is sleeved on the crankshaft 121 and can drive the crankshaft 121 to rotate, the crankshaft 121 is driven to rotate through the rotor support assembly, the connection between the rotor assembly 140 and the crankshaft 121 is simple, a connecting structure is not required to be arranged on the first rotor disc 141 and the second rotor disc 142, and the structures of the first rotor disc 141 and the second rotor disc 142 are simplified.

Further, as shown in fig. 2 to 8, structures for preventing the rotor bracket assembly from rotating relative to the crankshaft 121 are disposed on the rotor bracket assembly and the crankshaft 121, so that the rotor bracket assembly can drive the crankshaft 121 to rotate, specifically, as shown in fig. 7 and 8, a tangent plane 127 extending downward from the top surface of the crankshaft 121 is disposed on the upper portion of the crankshaft 121, the tangent plane 127 is disposed so that at least a portion of a side wall of the crankshaft 121 forms a non-circular structure, and at least a portion of the structure of the rotor bracket assembly is adapted to the tangent plane 127, so that the rotor bracket assembly can be firmly sleeved on the crankshaft 121, thereby preventing the rotor bracket assembly from rotating radially relative to the crankshaft 121.

Further, as shown in fig. 2, 4 and 8, the rotor support assembly includes a rotor support body 143 and a gasket 144, the rotor support body 143 is provided with a mounting groove, the mounting groove is adapted to the gasket 144, the gasket 144 is clamped in the mounting groove, an outer contour edge of the gasket 144 is a non-circular structure, which can prevent the gasket 144 from rotating in the mounting groove; further, the gasket 144 is provided with a first through hole, the crankshaft 121 is located in the first through hole, a portion of the first through hole is matched with the tangent plane 127 of the crankshaft 121, that is, the first through hole is non-circular, the tangent plane 127 of the crankshaft 121 abuts against the first through hole, so that the gasket 144 can drive the crankshaft 121 to rotate, that is, a structure for preventing the rotor bracket assembly from rotating relative to the crankshaft 121 is arranged on the gasket 144, and it is not necessary to arrange an anti-rotation structure on the rotor bracket body 143, so that the rotor bracket body 143 is simple in structure and easy to process and produce.

Specifically, as shown in fig. 8, the outer contour of the gasket 144 may be a polygon such as a rectangle, a triangle, a pentagon, or the like, or a boss protruding outward on the basis of a circle.

Further, as shown in fig. 2, the compressor 100 further includes a fixing member 145 and a press-fit piece 146, and the fixing member 145 and the press-fit piece 146 are used for fixing the gasket 144 and the crankshaft 121 in the axial direction of the crankshaft 121, and preventing the gasket 144 from being separated from the crankshaft 121 in the axial direction. Specifically, a threaded hole is formed in the top surface of the crankshaft 121, the fixing element 145 may be a screw, one end of the screw is screwed into the threaded hole, the nut presses the gasket 144 to fix the gasket 144 to the crankshaft 121, and further, a pressing sheet 146 is disposed between the nut of the screw and the gasket 144, and a contact area between the pressing sheet 146 and the gasket 144 is large, so that the gasket 144 is more firmly mounted.

Further, as shown in fig. 2, the rotor support assembly is in interference fit with the crankshaft 121, and the interference fit enables the coaxiality of the assembled rotor support assembly and the crankshaft 121 to be high and the assembly deviation to be small, so that the crankshaft 121 is balanced in the rotating process. The rotor bracket assembly and the crankshaft 121 can also be in clearance fit, and the clearance fit is convenient to disassemble, is beneficial to subsequent maintenance and repair of products, and is easy to assemble.

Further, rotor bracket assembly and bent axle 121 are at ascending cooperation length more than or equal to 10mm of axial direction for rotor bracket assembly has sufficient height and bent axle 121 to support each other, thereby can guarantee the straightness that hangs down after rotor bracket assembly and bent axle 121 install, makes bent axle 121's rotation more steady.

Further, as shown in fig. 2 and 8, a stop portion 128 is disposed on the crankshaft 121, the rotor bracket assembly is sleeved on the crankshaft 121, and a part of the rotor bracket assembly abuts against the stop portion 128. Through set up the backstop portion 128 that is used for rotor bracket assembly axial positioning on bent axle 121, rotor bracket assembly's partial structure butt in backstop portion 128 to make rotor bracket assembly install the back for the axial position of bent axle 121 fixed, and then realized the fixed of the position of whole rotor assembly 140 for bent axle 121, because the position of upper bearing 122 for bent axle 121 is fixed again, stator module 130 and upper bearing 122 fixed connection, thereby can ensure to have reasonable axial clearance between rotor assembly 140 and the stator module 130.

Example four

On the basis of any of the above embodiments, further, as shown in fig. 2 and 9, the pump body assembly 120 further includes: a cylinder 125 having a receiving chamber formed thereon; a piston 126 disposed in the accommodation chamber; the sliding sheet is arranged in the accommodating cavity and divides the accommodating cavity to form a compression cavity and a suction cavity; the lower bearing 124 is disposed below the cylinder 125, the upper bearing 122 is disposed above the cylinder 125, and the crankshaft 121 passes through the upper bearing 122, the cylinder 125, and the lower bearing 124.

In this embodiment, the pump body assembly 120 further includes a cylinder 125, a piston 126, a sliding piece, and a lower bearing 124, wherein the cylinder 125 is provided with an accommodating cavity, the piston 126 and the sliding piece are disposed in the accommodating cavity, the sliding piece separates the accommodating cavity to form a compression cavity and a suction cavity, the upper bearing 122 and the lower bearing 124 are respectively disposed on the upper side and the lower side of the cylinder 125, the crankshaft 121 penetrates through the upper bearing 122, the cylinder 125, and the lower bearing 124, and the rotor assembly 140 is connected to the crankshaft 121 and drives the crankshaft 121 to rotate, thereby implementing rotary compression. Specifically, the crankshaft 121 includes a long shaft portion, a short shaft portion and an eccentric portion, and the eccentric portion of the crankshaft 121 is located in the accommodating cavity of the cylinder 125, and drives the piston 126 to move, thereby achieving air suction and compression movement.

Further, as shown in fig. 9, the compressor 100 further includes: the spring 150 hole, the spring 150 and the baffle 160, the spring 150 hole is set on the cylinder 125, the spring 150 is set in the spring 150 hole, the baffle 160 is connected with the cylinder 125, the baffle 160 blocks the spring 150 hole to fix the spring 150 in the spring 150 hole. Specifically, a spring 150 hole is formed in the cylinder 125, the spring 150 is installed in the spring 150 hole, and the baffle 160 blocks the spring 150 hole, so that the spring 150 is fixed in the spring 150 hole. Specifically, screw holes are provided on the outer periphery of the cylinder 125 beside the holes of the spring 150, and the baffle 160 is locked to the cylinder 125 by screws for fixing the spring 150; alternatively, the baffle 160 may be welded to the cylinder 125 to secure the spring 150.

In any of the above embodiments, further, the compressor 100 is a rotary compressor.

In this embodiment, the compressor 100 is specifically a rotary compressor, which is widely applied to refrigeration equipment such as air conditioners and refrigerators, and has the advantages of stable compression operation, high compression efficiency, few parts, small volume, light weight, good balance performance, low noise, and the like. The compressor 100 provided by the invention can further reduce the volume of the rotary compressor, and is beneficial to the miniaturization of products.

As shown in fig. 2 to 9, a second aspect of the present invention provides a refrigeration apparatus including the compressor 100 in any one of the above embodiments, so that the refrigeration apparatus provided by the present invention has all the advantages of the compressor 100 provided in any one of the above embodiments.

Further, the refrigeration equipment further comprises an evaporator, a condenser and a throttling mechanism, and the refrigeration equipment applying the compressor 100 of the invention can change the installation mode of the compressor 100 in the refrigeration equipment along with the change of the external dimension of the compressor 100, for example, when the compressor 100 is applied to an outdoor unit of an air conditioner, the compressor 100 and a fan can be installed side by side, the installation space of the compressor 100 is reduced, the air inlet channel of an air conditioner radiator is improved, the size of the shell 110 of the outdoor unit of the air conditioner is reduced to a greater extent, and therefore, the miniaturization of products is realized.

It is understood that the compressor 100 defined by the present invention has better vibration noise and efficiency, and is a development direction for the miniaturization of the rotary compressor in the future. Meanwhile, when the compressor 100 defined by the present invention is applied to an outdoor unit of an air conditioner, the installation space requirement of the compressor 100 in the outdoor unit of the air conditioner is reduced, and not only is the air intake passage of the radiator of the air conditioner improved, but also the miniaturization of the outdoor unit of the air conditioner is facilitated.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

As shown in fig. 2 to 9, the compressor 100 of the present invention includes a disc-type motor assembly and a pump body assembly 120. Therein, a disc-type electric machine assembly comprises a first rotor disc 141, a second rotor disc 142 and a stator assembly 130. The first rotor disc 141 and the second rotor disc 142 are both connected and fixed with the crankshaft 121 through a rotor bracket body 143, and are provided with a gasket 144 for preventing rotation, and the rotor assembly 140 drives the crankshaft 121 to rotate to drive the piston 126 of the pump body assembly 120 to compress gas. The stator assembly 130 includes a stator core group 132 and a stator bracket 134 which are divided into blocks and are fixed into a whole in an epoxy resin injection manner, and the stator bracket 134 is directly and fixedly mounted on a skirt step of the upper bearing 122 of the pump body assembly 120, so that the whole disc-type motor assembly is not in contact with the housing 110, and a thermal sleeve is not required.

Specifically, as shown in fig. 2, the compressor 100 of the present invention includes a disc-type motor assembly, a pump body assembly 120 and a closed casing 110, wherein the pump body assembly 120 includes a cylinder 125, a crankshaft 121, a piston 126 disposed in the cylinder 125, an upper bearing 122 and a lower bearing 124 disposed at both ends of the cylinder 125, and a sliding vane forming a suction chamber and a compression chamber. The stator assembly 130 of the disc-type motor assembly is fixed to the upper bearing 122 of the pump body assembly 120, and the first rotor disc 141 and the second rotor disc 142 are connected to the crankshaft 121 through the rotor holder body 143 to rotate and compress the crankshaft 121.

Further, as shown in fig. 5 and 6, the stator assembly 130 includes a stator core group 132 and a stator bracket 134 which are divided into blocks, the stator core group 132 is fixed to the stator bracket 134 by glue injection, the stator bracket 134 is provided with a first fixing hole, an outlet hole and an airflow passage, and the stator assembly 130 is fixed and positioned by a step surface of the upper bearing 122.

Further, as shown in fig. 2, 3 and 4, the rotor assembly 140 includes a rotor support body 143, which can be connected to the crankshaft 121 in an interference fit or small clearance fit manner, the fit distance is greater than or equal to 10mm, an upper end surface of the rotor support body 143 is provided with a rotation-preventing mounting groove, the mounting groove is used for mounting a gasket 144, an airflow through hole is formed in a side surface of the rotor support body 143, an airflow through hole is formed in a lower end surface, and an axial clearance between the rotor assembly 140 and the stator assembly 130 is ensured by a distance between a step surface on the crankshaft 121 and a step surface of the upper bearing 122 through the second rotor disc.

Further, as shown in fig. 2 and 3, the first rotor disc 141 is provided with an air flow through hole and a screw fixing hole, and an axial gap between the rotor assembly 140 and the stator assembly 130 is ensured by positioning the rotor support body 143.

Further, as shown in fig. 2 and 7, the crankshaft 121 is a stepped shaft, the upper end of the stepped shaft is provided with a platform for preventing rotation, the upper end of the stepped shaft is provided with a threaded hole, the stepped thin end of the crankshaft 121 is in interference fit with the rotor support body 143, and the step surface is used for limiting and positioning the axial distance of the rotor assembly 140.

Further, as shown in fig. 2 and 8, the compressor 100 further includes a spacer 144 for preventing self-rotation, the spacer 144 is provided with symmetrical bosses and inner diameter cut edges, and a bolt axially locks the crankshaft 121 and the spacer 144 to fix the crankshaft 121 and the rotor bracket body 143, thereby fixing the crankshaft 121 and the rotor assembly 140.

Further, as shown in fig. 2 and 5, a second fixing hole is disposed on the step of the skirt of the upper bearing 122, and the second fixing hole may be a screw hole, and corresponds to the first fixing hole of the stator bracket 134, and is used for fixing the stator assembly 130 and ensuring the coaxiality of the stator assembly 130 and the crankshaft 121, and meanwhile, the stator assembly 130 is positioned by the relative position of the plane of the step of the skirt of the upper bearing 122 and the step surface of the crankshaft 121, and the axial gap between the rotor assembly 140 and the stator assembly 130 is ensured.

Further, as shown in fig. 2 and 9, screw holes are provided on the outer circle of the cylinder 125 beside the hole of the spring 150, and a baffle 160 is fastened to the cylinder 125 by screws for fixing the spring 150.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A compressor, comprising:

a housing;

the pump body assembly is arranged in the shell and comprises a crankshaft and an upper bearing;

a motor assembly disposed within the housing, the motor assembly configured to drive the pump body assembly; the motor assembly includes:

the stator assembly is fixed on the upper bearing;

the rotor assembly is connected with the crankshaft, the rotor assembly drives the crankshaft to rotate and compress, and the rotor assembly is arranged in the axial direction of the stator assembly.

2. The compressor of claim 1, wherein the stator assembly comprises:

a stator core group;

and the stator bracket is connected with the stator core group, is connected with the upper bearing and is abutted against the upper bearing.

3. The compressor of claim 2,

the stator bracket is annular, the stator core group is fixed in the inner ring of the stator bracket, and the stator bracket is provided with a first fixing hole, a wire outlet hole and an air flow channel; the pump body assembly further includes:

the supporting part is arranged on the upper bearing, and the stator bracket abuts against the upper end surface of the supporting part;

the second fixing hole is arranged on the supporting part and corresponds to the first fixing hole;

and the connecting piece penetrates through the first fixing hole and extends into the second fixing hole so as to connect the stator bracket and the supporting part.

4. A compressor according to any one of claims 1 to 3, wherein the rotor assembly comprises:

a first rotor disc provided at one side of the stator assembly in an axial direction;

a second rotor disk disposed at the other side in the axial direction of the stator assembly;

and the rotor support component is connected with the first rotor disc and the second rotor disc, and the rotor support component is sleeved on the crankshaft and can drive the crankshaft to rotate.

5. The compressor of claim 4,

the upper part of the crankshaft is provided with a tangent plane extending downwards from the top surface of the crankshaft;

at least part of the structure of the rotor support assembly is matched with the tangent plane so as to prevent the rotor support assembly from rotating relative to the crankshaft.

6. The compressor of claim 5, wherein the rotor bracket assembly comprises:

the rotor support comprises a rotor support body, wherein a mounting groove is formed in the rotor support body;

the gasket, the outline limit of gasket is non-circular structure, the gasket card is established in the mounting groove, be equipped with first through-hole on the gasket, the bent axle is located in the first through-hole, the part of first through-hole with the tangent plane looks adaptation of bent axle.

7. The compressor of claim 6, further comprising:

the top surface of the crankshaft is provided with a threaded hole, and the crankshaft and the gasket are axially fixed by the fixing piece;

and the pressing sheet is arranged between the fixing piece and the gasket.

8. The compressor of claim 4,

the rotor bracket assembly and the bent axle interference fit, or rotor bracket assembly with bent axle clearance fit, rotor bracket assembly with bent axle is at ascending cooperation length more than or equal to 10mm of axial direction.

9. The compressor of claim 4,

the crankshaft is provided with a stopping part, the rotor support assembly is sleeved on the crankshaft, and part of the structure of the rotor support assembly is abutted against the stopping part.

10. Compressor according to any one of claims 1 to 3,

the stator assembly is disc-shaped, and the rotor assembly is disc-shaped.

11. The compressor of any one of claims 1 to 3, wherein the pump body assembly further comprises:

the cylinder is provided with an accommodating cavity;

a piston disposed in the receiving chamber;

the sliding piece is arranged in the accommodating cavity and divides the accommodating cavity to form a compression cavity and a suction cavity;

the lower bearing is arranged below the cylinder, the upper bearing is arranged above the cylinder, and the crankshaft penetrates through the upper bearing, the cylinder and the lower bearing.

12. The compressor of claim 11, further comprising:

a spring hole provided on the cylinder;

a spring disposed in the spring hole;

and the baffle is connected with the cylinder and used for plugging the spring hole so as to fix the spring in the spring hole.

13. Compressor according to any one of claims 1 to 3,

the compressor is a rotary compressor.

14. A refrigeration apparatus, comprising:

a compressor as claimed in any one of claims 1 to 13.