CN111396287A

CN111396287A - Compressor and refrigerating device with same

Info

Publication number: CN111396287A
Application number: CN201910152440.1A
Authority: CN
Inventors: 马利亚; 陈娟娟; 冯海; 黄传顺; 莫子扬
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai; Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority date: 2019-01-03
Filing date: 2019-02-28
Publication date: 2020-07-10
Also published as: CN209704787U; CN209704786U; CN109854479A

Abstract

The invention provides a compressor and a refrigerating device with the same. A compressor, the compressor comprising: the driving mechanism comprises a transmission part and a second magnetic piece, and the second magnetic piece is arranged at one end of the transmission part; the cylinder assembly comprises a piston body and a first magnetic suction piece, the piston body is positioned on one side of the transmission part, and the first magnetic suction piece is arranged on one side of the piston body, which faces the transmission part; the second magnetic part is matched with the first magnetic part to enable the piston body to move in a reciprocating mode relative to the transmission part. The compressor generates a magnetic field through the magnetic attraction piece, the piston assembly is driven to reciprocate in the cylinder to compress a refrigerant by adopting the acting force principle of an electromagnetic field, a crank-connecting rod mechanism is omitted, and the kinematic pair of the compressor is reduced, so that the operation efficiency of the compressor is improved, and the reliability of the compressor is improved.

Description

Compressor and refrigerating device with same

Technical Field

The invention relates to the technical field of compressor equipment, in particular to a compressor and a refrigerating device with the same.

Background

The refrigeration compressors can be classified into a volume type and a speed type. Among them, the displacement type compressor is mainly classified into a reciprocating type and a rotary type. The reciprocating compressor is the most widely used type so far, but its market share is gradually decreasing (occupied by other kinds of compressors) due to the various drawbacks that it has to overcome. For the reciprocating piston compressor, the main problems are that the structure is complex, the number of moving friction parts is large, and therefore, the number of wearing parts is large. Therefore, the reliability and the economical efficiency of the compressor are gradually replaced by other kinds of compressors in a certain application range.

In the conventional reciprocating piston compressor, a motor drives a crankshaft to rotate, and a crankshaft connecting rod mechanism converts the rotary motion of the motor into reciprocating linear motion of a piston in a cylinder. The most easily worn parts in the transmission and conversion parts of the motion are the friction between the crankshaft and the shaft hole and the friction between the connecting rod and the crank. In addition, the assembly of the connecting rod requires a reserved space, so the processing and process requirements on the cylinder seat (crankcase) are more complicated.

Disclosure of Invention

The invention mainly aims to provide a compressor and a refrigerating device with the same, and aims to solve the problem of low reliability of the compressor in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided a compressor including: the driving mechanism comprises a transmission part and a second magnetic piece, and the second magnetic piece is arranged at one end of the transmission part; the cylinder assembly comprises a piston body and a first magnetic suction piece, the piston body is positioned on one side of the transmission part, and the first magnetic suction piece is arranged on one side of the piston body, which faces the transmission part; the second magnetic part is matched with the first magnetic part to enable the piston body to move in a reciprocating mode relative to the transmission part.

Further, transmission portion includes main shaft and the crank that connects in order, and the main shaft is used for being connected with motor drive, and the piece setting is inhaled on the crank to the second magnetism.

Further, the axis of the main shaft and the axis of the crank coincide.

Further, the axis of the main shaft is not coincident with the axis of the crank.

Further, the drive mechanism further includes: and the balance structure is arranged between the main shaft and the crank.

Furthermore, the transmission part is provided with an oil guide hole, the extending direction of the oil guide hole is the same as the axial direction of the transmission part, and the driving mechanism further comprises an oil pump which is communicated with the oil guide hole.

Further, the lateral wall of transmission portion is provided with leads the oil groove, and leads oil groove and leads the oilhole intercommunication.

Furthermore, a second oil throwing hole is further formed in the side wall of the transmission portion and communicated with the oil guide hole, and the second oil throwing hole is formed in one end, where the second magnetic piece of the transmission portion is located, of the transmission portion.

Further, the cylinder assembly further comprises: a cylinder head assembly; the cylinder head assembly is connected with one end of the cylinder seat, the other end of the cylinder seat is arranged towards the driving mechanism, a through gas flow passage is formed in the cylinder head assembly and the cylinder seat, and the piston body is movably arranged in the gas flow passage.

Further, the cylinder head assembly includes: the cylinder cover is connected with the cylinder seat; the valve plate is arranged between the cylinder cover and the cylinder seat; and the air suction valve plate is arranged between the valve plate and the cylinder seat.

Further, the cylinder assembly further comprises: and the limiting baffle is arranged on one side of the cylinder seat, which faces the driving mechanism, and is used for limiting the displacement of the piston body.

Furthermore, a first oil throwing hole and an oil leakage hole are formed in the limiting baffle plate and are communicated with the gas flow passage.

Further, an oil groove is formed in the piston body in the circumferential direction.

Further, the cylinder block further includes: the limiting baffle is arranged at the end part of the piston chamber, facing one side of the transmission part, so that a closed accommodating space is formed at one end of the piston chamber, facing the transmission part.

Furthermore, a flexible anti-friction structure is arranged on the surface of the limiting baffle plate facing to one side of the piston assembly.

According to another aspect of the present invention, there is provided a refrigeration device comprising a compressor, the compressor being the above-mentioned compressor.

By applying the technical scheme of the invention, the compressor generates a magnetic field through the magnetic part, and the piston assembly is driven to reciprocate in the cylinder to compress the refrigerant by adopting the acting force principle of the electromagnetic field, so that a crank-connecting rod mechanism is omitted, and the kinematic pair of the compressor is reduced, thereby improving the operation efficiency of the compressor and improving the reliability of the compressor.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows an exploded structural schematic view of a first embodiment of a compressor according to the present invention;

fig. 2 shows a schematic structural view of a second embodiment of the compressor according to the present invention;

fig. 3 shows a schematic structural view of a third embodiment of the compressor according to the present invention;

fig. 4 shows a schematic structural view of a fourth embodiment of the compressor according to the present invention;

fig. 5 shows a schematic structural view of a fifth embodiment of the compressor according to the present invention;

FIG. 6 is a schematic view showing the construction of the drive mechanism of FIG. 5;

fig. 7 shows a schematic view of the piston of fig. 5.

Wherein the figures include the following reference numerals:

10. a cylinder block; 11. a piston chamber;

20. a piston assembly; 21. a piston body; 22. an oil sump;

30. a transmission section; 31. a main shaft; 32. a crank; 33. an oil guide groove; 34. a second oil slinger hole; 35. a balance structure;

40. a limit baffle; 41. a first oil slinger hole; 42. an oil leak hole;

50. a cylinder head assembly; 51. a screw; 52. a cylinder head; 53. a valve plate; 54. an air suction valve plate;

60. a centrifugal pump.

100. A drive mechanism; 200. a cylinder assembly.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

Referring to fig. 1 to 7, according to an embodiment of the present invention, there is provided a compressor.

Specifically, as shown in fig. 1, the compressor includes a cylinder block 10, a piston assembly 20, and a transmission part 30. The cylinder block 10 has a piston chamber 11. The piston assembly 20 is movably disposed in the cylinder block 10, and the piston assembly 20 has a first magnetic attracting element (shown as a in fig. 1). The transmission portion 30 is rotatably disposed on the cylinder block 10, the transmission portion 30 is provided with a second magnetic member (as shown in fig. 1B) matched with the first magnetic member, and the transmission portion 30 can drive the second magnetic member to rotate so that the piston assembly 20 reciprocates in the piston chamber 11 to compress the refrigerant sucked into the piston chamber 11. The cylinder block 10 further includes: and the limiting baffle 40 is arranged at the end part of the piston chamber 11 facing to the transmission part 30 side, so that the end of the piston chamber 11 facing to the transmission part 30 forms an accommodating space for accommodating the piston assembly.

In this embodiment, this compressor passes through magnetism to inhale the piece and produces magnetic field, adopts the effort principle of electromagnetic field to drive piston assembly and do the motion of reciprocating compression refrigerant in the cylinder, has cancelled the crank link mechanism among the prior art, reduces the motion pair of compressor to improve compressor operating efficiency, improved the reliability of compressor. Wherein, the first magnetic part and the second magnetic part can be magnets.

The transmission section 30 includes a main shaft 31 and a crank 32. The main shaft 31 is inserted into a bearing hole of the cylinder block 10 (as shown at D in fig. 3 and 4). The crank 32 is connected with the main shaft 31, the second magnetic attraction piece is connected with the crank 32, and the crank 32 can drive the second magnetic attraction piece to do circular motion. The arrangement enables the driving main shaft to rotate under the driving of the motor, so that the second magnetic attraction piece and the crank are driven to follow up, and the reliability of the transmission part and the stability of the piston assembly during operation are effectively improved.

When the second magnetic attraction piece rotates within the first preset angle, a suction force is generated between the second magnetic attraction piece and the first magnetic attraction piece to move the piston assembly 20 toward one side of the spindle 31, and when the second magnetic attraction piece rotates within the second preset angle, a repulsive force is generated between the second magnetic attraction piece and the first magnetic attraction piece to move the piston assembly 20 away from one side of the spindle 31 to advance and compress the refrigerant. Preferably, as shown in fig. 1, when the N pole of the first magnetic attraction piece is disposed toward the crankshaft, the first preset angle of rotation of the S pole of the second magnetic attraction piece may be 90 ° to 270 °, and the second preset angle of rotation of the S pole of the second magnetic attraction piece may be 270 ° to 90 °, which is clockwise, and the rotation is 360 ° in one circle.

Further, the second magnetic member is disposed along the outer peripheral surface of the crank 32, and the N pole of the second magnetic member and the S pole of the second magnetic member are disposed oppositely. The magnetic pole of the second magnetic part and the magnetic pole of the first magnetic part generate acting force, and the other magnetic pole does not generate interference effect, so that the stability of magnetic field force generated between the magnetic parts is effectively improved.

The piston assembly 20 includes a piston body 21. The piston body 21 is a columnar structure, the axis of the piston body 21 is arranged along the axis direction of the piston chamber 11, the first magnetic attraction piece is connected with the piston body 21, and the N pole of the first magnetic attraction piece or the S pole of the first magnetic attraction piece are arranged towards one side of the transmission part 30. This arrangement can improve the reliability of the piston assembly 20 in compressing the refrigerant.

The cylinder block 10 also includes a retainer baffle 40. The limit baffle 40 is disposed at an end of the piston chamber 11 facing the transmission portion 30, and a first oil slinger hole 41 for allowing lubricating oil to enter the piston chamber 11 is formed in the limit baffle 40. Set up like this and to make lubricating oil can enter into to lubricate piston assembly in the piston chamber, improved piston assembly's life effectively.

Furthermore, the limit baffle 40 is provided with an oil leakage hole 42. The oil leakage hole is provided at an interval from the first oil slinger hole 41. The arrangement is such that the lubricating oil located in the piston chamber can be discharged out of the piston chamber in time.

Preferably, as shown in fig. 1, the first oil slinger hole 41 is opened in the middle of the limit baffle 40, two oil leakage holes 42 are provided, and the two oil leakage holes 42 are symmetrically provided on both sides of the first oil slinger hole 41. Wherein the cross-sectional shape of the oil leakage hole 42 is semicircular.

In another embodiment of the present application, the first oil slinger hole 41 is plural, and the plural first oil slinger holes 41 are provided in the middle of the limit baffle 40. One oil leakage hole 42 is provided below the first oil slinger hole 41. The cross-sectional shape of at least one first oil slinger hole 41 among the plurality of first oil slinger holes 41 is square, circular, elliptical or triangular.

In another embodiment of the present application, as shown in fig. 3, cylinder block 10 further includes a retainer block 40. The limit baffle 40 is provided at an end of the piston chamber 11 facing the transmission unit 30 such that one end of the piston chamber 11 facing the transmission unit 30 forms a closed accommodation space. This arrangement can further improve the stability and reliability of the piston assembly.

As shown in fig. 2, the surface of the limit stop 40 facing the piston assembly 20 is provided with a flexible wear reducing structure. This arrangement can reduce wear of the piston assembly. Preferably, the flexible friction reducing structure is a flexible friction reducing coating.

The compressor in the above embodiment may also be used in the technical field of refrigeration equipment, that is, according to another aspect of the present invention, a refrigeration device is provided. The refrigerating device comprises a compressor, and the compressor is the compressor in the embodiment.

Specifically, the compressor with the structure solves the problems of complex structure, high precision requirement and poor manufacturability of the existing cylinder seat with the crank connecting rod structure. Wherein, this cylinder seat structure is through setting up limit baffle, solves the open problem of magnetism drive piston structure compressor piston operation bottom dead center, through setting up flexible antifriction buffer, solves the striking problem of magnetism drive piston structure compressor piston and baffle. Meanwhile, the cylinder seat with the structure solves the problems of high power consumption and poor reliability of the compressor caused by the fact that lubricating oil of a piston and a cylinder hole in the magnetic drive piston compressor is difficult to reach for realizing lubrication.

The compressor is simple in structure and low in cost, can effectively achieve compression of the compressor with the magnetic drive piston structure, improves lubrication of the piston and a cylinder hole, reduces power consumption of the whole compressor, and prolongs service life of the compressor. The cylinder hole of the cylinder seat is provided with a buffering area and a piston bottom dead center limiting structure, the stroke of the piston is limited through the buffering area and the limiting structure, the piston is driven by electromagnetic force to do reciprocating motion in the cylinder, meanwhile, the piston stroke is limited by the limiting structure and the valve group gasket, moving parts of the compressor are few, and the compressor is efficient and energy-saving.

As shown in the attached figure 1, the tail part of a cylinder hole of the cylinder block is provided with a closed limiting baffle, a first oil throwing hole and an oil leakage hole. Preferably, the first oil slinger hole and the oil leakage hole are positioned on the limit baffle, the first oil slinger hole of the cylinder seat is of a rectangular structure and is symmetrical about the center of the cylinder hole, and lubricating oil is thrown into the cylinder through the first oil slinger hole to complete the lubrication of a piston and cylinder friction pair. The cylinder block oil leakage hole is composed of two semicircular structures which are symmetrical up and down, redundant lubricating oil entering the cylinder is discharged out of the cylinder through the oil leakage hole, excessive lubricating oil is prevented from being accumulated in the cylinder, and the oil discharge capacity of the compressor is increased.

As shown in the attached figure 2, a flexible antifriction buffer area is arranged on the inner wall of the cylinder block limiting baffle. When the compressor with the magnetic drive piston structure operates, the piston is subjected to electromagnetic force to do reciprocating motion in the cylinder hole, the piston collides with the limiting baffle, the stroke of the piston is limited through the limiting baffle, and the bottom dead center of the piston in operation is determined. In order to avoid the situation that the compressor fails when the piston collides with the limiting baffle, the limiting baffle is provided with a buffer area, and after the tail of the piston is contacted with the buffer area, the impact force is reduced through flexible arrangement, so that the reliable operation of the compressor is realized.

As the cylinder block shown in the attached figure 3, the cylinder block is provided with the flexible buffering area and the limiting baffle, a first oil throwing hole and an oil leakage hole are not formed in the limiting baffle, lubricating oil is not needed when the piston and the cylinder move, and the piston is lubricated by self-lubricating materials.

As shown in the attached figure 4, the first oil slinger hole positioned on the limit baffle is composed of a plurality of small square or round or small holes in any shape, lubricating oil is thrown into the cylinder through the small first oil slinger holes, and a piston and cylinder friction pair is lubricated. The bottom of the limiting baffle is provided with an oil leakage hole, redundant lubricating oil is discharged, the lubricating oil is prevented from being accumulated to enter the air cylinder, and the oil discharge capacity of the compressor is increased.

As shown in fig. 1, the compressor further comprises a cylinder head assembly 50, the cylinder head assembly 50 comprises a screw 51, a cylinder cover 52, a valve plate 53, a suction valve plate 54 and a centrifugal pump 60, i.e. the oil pump may be a centrifugal pump 60.

According to another embodiment of the present application, an embodiment of the present invention provides a piston compressor including: a drive mechanism 100 and a cylinder assembly 200. The driving mechanism 100 includes a transmission portion 30 and a second magnetic member, and the second magnetic member is disposed at one end of the transmission portion 30. The cylinder assembly 200 includes a piston body 21 and a first magnetic member, the piston body 21 is located at one side of the transmission portion 30, and the first magnetic member is disposed at one side of the piston body 21 facing the transmission portion 30. The second magnetic member is engaged with the first magnetic member to reciprocate the piston body 21 relative to the transmission portion 30. Specifically, the second magnetic attraction piece and the first magnetic attraction piece can be electromagnets or magnets. In the rotation process of the transmission part 30, the second magnetic attraction piece changes the magnetic pole facing one side of the piston body 21, so that the first magnetic attraction piece receives attraction force or repulsion force, and the piston body 21 can move back and forth. In this embodiment, the second magnetic attraction member and the first magnetic attraction member are magnets, the second magnetic attraction member has a first magnetic pole and a second magnetic pole, and the first magnetic pole and the second magnetic pole are respectively located at two sides of the transmission portion 30. Thus, when the rotating shaft rotates, the first magnetic pole faces the first magnetic attraction piece, or the second magnetic pole faces the first magnetic attraction piece, so that the piston body 21 is attracted by attraction force or repulsion force. Wherein, the piece can be established at the tip of transmission portion 30 in the cover is inhaled to the second magnetism, also can inhale the piece and set up transmission portion 30 into integrated into one piece structure with the second magnetism, also can inhale the piece and be connected with transmission portion 30 to interference fit with the second magnetism. In order to improve the connection stability while the second magnetic attraction piece is sleeved on the transmission part 30, the second magnetic attraction piece is adhered to the transmission part 30. The first magnetic attraction piece can be integrated with the piston body 21, or the first magnetic attraction piece can be embedded on the piston body 21.

The piston compressor provided by the embodiment specifically includes a transmission portion 30, a second magnetic member, a piston body 21, and a first magnetic member. The second magnetic part is arranged on the transmission part 30, the first magnetic part is arranged on the piston body 21, and the second magnetic part is matched with the first magnetic part on the piston body 21, so that the reciprocating movement of the piston body 21 can be realized, and transmission mechanisms such as a connecting rod are not required to be added. The device is simple in structure, the transmission part 30 can be prevented from contacting the piston body 21, abrasion of the transmission part and the piston body in the transmission process can be avoided, and the service life of parts is prolonged.

In the present embodiment, the transmission part 30 includes a main shaft 31 and a crank 32 connected in sequence, the main shaft 31 is used for being connected with a motor, and the main shaft 31 is driven to rotate by the motor. The second magnetically attractive element is disposed on the crank 32 and is disposed toward the first magnetically attractive element of the piston.

The axis of the main shaft 31 and the axis of the crank 32 may or may not coincide with each other. In the present embodiment, the axis of the main shaft 31 does not coincide with the axis of the crank 32.

In this embodiment, the driving mechanism further comprises a balance structure 35, the balance structure 35 being arranged between the main shaft 31 and the crank 32. Specifically, one end of the crank 32 is connected to one side of the balance structure 35, and one end of the main shaft 31 is connected to the other side of the balance structure 35. Because transmission portion 30 is when utilizing the second magnetism to inhale piece drive piston body 21 and moving, transmission portion 30 can receive the reaction force of drive piston body 21 simultaneously, can increase transmission portion 30's radial load like this, can increase transmission portion 30's inertial force through setting up balanced structure 35 to offset through this inertial force and piston body 21's reaction force, make transmission portion 30 central line be located same position all the time, guarantee transmission portion 30's normal operating.

Specifically, an oil guide hole is formed in the transmission portion 30, one end of the oil guide hole is located at one end, far away from the second magnetic attraction piece, of the transmission portion 30, and the extending direction of the oil guide hole is the same as the axial direction of the transmission portion 30. The driving mechanism further comprises an oil pump, and the oil pump is communicated with the oil guide hole. The oil is pumped to the oil guide hole by the oil pump to lubricate other parts such as the transmission part 30, the piston body 21 and the like, and the motion abrasion of each part is reduced.

Specifically, an oil guide groove 33 is provided on a side wall of the transmission portion 30, and the oil guide groove 33 communicates with the oil guide hole. The oil guide groove 33 is communicated with the oil guide hole, so that oil pumped out by the oil pump can be sent out through the oil guide groove 33.

Wherein, lead oil groove 33 can be for vertical lead oil groove, also can be for annular lead oil groove. In the present embodiment, the oil guiding groove 33 is a spiral structure, and two ends of the oil guiding groove 33 are respectively communicated with the oil guiding holes. With this arrangement, the oil in the oil guide groove 33 can be sufficiently thrown out when the transmission unit 30 rotates, and the lubrication performance of the parts can be improved.

In this embodiment, a second oil slinger hole 34 is further disposed on the side wall of the transmission portion 30, the second oil slinger hole 34 is communicated with the oil guide hole, and the second oil slinger hole 34 is disposed at an end of the transmission portion 30 where the second magnetic attraction piece is located. Through setting up second flinger bore 34, can utilize and fling fluid to piston body 21 on, be convenient for lubricate piston body 21. Specifically, the second oil slinger hole 34 is located on the side away from the main shaft center.

In this embodiment, the piece is inhaled to second magnetism is split type structure, and it specifically includes that first magnetism inhales unit and second magnetism and inhales the unit, and first magnetism inhales the unit and the second magnetism inhales the both sides that the unit is located transmission portion 30 respectively, and first magnetism inhales the unit and inhales a cooperation so that piston body 21 moves towards the first direction with first magnetism, and the unit is inhaled with first magnetism to the second magnetism and inhale a cooperation so that piston body 21 moves towards the second direction, and first direction and second direction are opposite direction. Through inhale the piece with the second magnetism and set up to components of a whole that can function independently structure can easy to assemble or dismantle, it is specific, can inhale the unit with the second magnetism and inhale the unit with first magnetism and set up to the curved surface structure to inhale the unit inner wall and the outer wall looks adaptation of transmission portion 30 with the second magnetism with first magnetism. Wherein, the outside of first magnetism unit of inhaling can set up the N utmost point, and the outside of second magnetism unit of inhaling is the S utmost point, utilizes two different magnetic poles of inhaling the unit of inhaling, just can carry out the magnetic pole when rotating and change, and then drive piston body 21 and carry out reciprocating motion.

In this embodiment, the first magnetic part is embedded on the end surface of the piston body 21, the piston body 21 is provided with an oil groove 22 along the circumferential direction, the oil groove 22 can store oil, and the oil is brought into a channel through which the piston body 21 moves to lubricate the piston body 21.

In this embodiment, the cylinder assembly 200 further includes: a cylinder head assembly 50 and a cylinder block 10. The cylinder head assembly 50 is connected to one end of the cylinder block 10, the other end of the cylinder block 10 is disposed toward the driving mechanism 100, the cylinder head assembly 50 and the cylinder block 10 have a gas flow passage therethrough, and the piston body 21 is movably disposed in the gas flow passage. The suction or exhaust operation can be performed by the reciprocating movement of the piston body 21.

Specifically, the cylinder head assembly 50 includes: a cylinder head 52, a valve plate 53, and an intake valve sheet 54. The cylinder head 52 is connected to the cylinder block 10, and the valve plate 53 is disposed between the cylinder head 52 and the cylinder block 10. The suction valve plate 54 is disposed between the valve plate 53 and the cylinder block 10. Valve plate 53 may support suction valve plate 54. The air suction valve plate 54 is arranged close to the piston body 21, and the piston body 21 can be limited through the air suction valve plate 54.

The cylinder assembly 200 further comprises a limiting baffle 40, wherein the limiting baffle 40 is arranged on one side of the cylinder seat 10 facing the driving mechanism 100, and is matched with the suction valve plate 54 for limiting through the limiting baffle 40 so that the piston body 21 can move between the limiting baffle 40 and the suction valve plate.

In order to lubricate the internal parts of the cylinder, the limit baffle 40 is provided with a first oil slinger hole 41 and an oil leakage hole 42, and the first oil slinger hole 41 and the oil leakage hole 42 are both communicated with the gas flow passage. The fluid that throws away through transmission portion 30 like this can get into the cylinder through first throwing oilhole 41 to inside the piston body 21 motion drive fluid gets into the cylinder, then flow out the cylinder through the oil leak hole 42 that is located first throwing oilhole 41 below, make fluid can carry out the circulation flow in the cylinder.

With the compressor of the present embodiment, when the transmission portion 30 rotates to a portion close to the cylinder block 10, the magnetic pole of the second magnetic member facing the piston body 21 has the same polarity (same as N or S pole) as the magnetic pole of the piston body 21 facing the transmission portion 30, and the piston body 21 is driven by the repulsive force between the second magnetic member and the first magnetic member to complete the compression and exhaust processes. When the transmission part 30 rotates 180 degrees, the magnetic poles of the second magnetic part opposite to the magnetic poles of the first magnetic part are opposite, so that the piston body 21 is driven to complete the expansion and air suction process by utilizing the attraction force between the second magnetic part and the first magnetic part.

Through the compressor that this embodiment provided, pivot and piston adopt non-contact magnetic drive, have optimized original complicated pump body transmission structure like this, save transmission assemblies such as connecting rod, piston pin, elastic locating pin. Therefore, the number of transmission assemblies is reduced, the assembly process is optimized, the production process is simpler, and the production efficiency can be improved. In addition, because of the adopted magnetic drive, the structural material in the compressor can adopt a cast aluminum material, so that the influence on a magnetic field can be reduced, and the weight of the whole device can be reduced.

In addition to the foregoing, it should be noted that reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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:

the driving mechanism (100) comprises a transmission part (30) and a second magnetic piece, and the second magnetic piece is arranged at one end of the transmission part (30);

the air cylinder assembly (200) comprises a piston body (21) and a first magnetic attraction piece, wherein the piston body (21) is positioned on one side of the transmission part (30), and the first magnetic attraction piece is arranged on one side, facing the transmission part (30), of the piston body (21);

the second magnetic part is matched with the first magnetic part to enable the piston body (21) to move in a reciprocating mode relative to the transmission part (30).

2. Compressor according to claim 1, characterized in that the transmission part (30) comprises a main shaft (31) and a crank (32) connected in sequence, the main shaft (31) is used for driving connection with a motor, and the second magnetic attraction piece is arranged on the crank (32).

3. Compressor according to claim 2, characterized in that the axis of the main shaft (31) and the axis of the crank (32) coincide.

4. Compressor according to claim 2, characterized in that the axis of the main shaft (31) is not coincident with the axis of the crank (32).

5. The compressor of claim 2, wherein the drive mechanism (100) further comprises:

a balancing structure (35) arranged between the spindle (31) and the crank (32).

6. The compressor according to claim 5, wherein the transmission portion (30) is provided with an oil guide hole extending in the same direction as the axial direction of the transmission portion (30), and the driving mechanism further includes an oil pump communicating with the oil guide hole.

7. The compressor according to claim 6, wherein a side wall of the transmission part (30) is provided with an oil guide groove (33), and the oil guide groove (33) communicates with the oil guide hole.

8. The compressor as claimed in claim 6, wherein a second oil slinger hole (34) is further formed in a side wall of the transmission portion (30), the second oil slinger hole (34) is communicated with the oil guide hole, and the second oil slinger hole (34) is formed at an end of the transmission portion (30) where the second magnetic attraction piece is located.

9. The compressor of claim 1, wherein the cylinder assembly (200) further comprises:

a cylinder head assembly (50);

the cylinder head assembly (50) is connected with one end of the cylinder block (10), the other end of the cylinder block (10) faces the driving mechanism (100), a penetrating gas flow passage is formed in the cylinder head assembly (50) and the cylinder block (10), and the piston body (21) is movably arranged in the gas flow passage.

10. The compressor of claim 9, wherein the cylinder head assembly (50) includes:

a cylinder head (52), the cylinder head (52) being connected with the cylinder block (10);

a valve plate (53) disposed between the cylinder head (52) and the cylinder block (10);

and the air suction valve plate (54) is arranged between the valve plate (53) and the cylinder seat (10).

11. The compressor of claim 9, wherein the cylinder assembly (200) further comprises:

the limiting baffle (40) is arranged on one side, facing the driving mechanism (100), of the cylinder seat (10), and the limiting baffle (40) is used for limiting the displacement of the piston body (21).

12. The compressor of claim 11, wherein the limit baffle (40) is provided with a first oil slinger hole (41) and an oil leakage hole (42), and the first oil slinger hole (41) and the oil leakage hole (42) are both communicated with the gas flow passage.

13. Compressor according to claim 1, characterized in that the piston body (21) is provided with an oil groove (22) in the circumferential direction.

14. The compressor of claim 9, wherein the cylinder block (10) further comprises:

the limiting baffle (40) is arranged at the end part of the piston chamber (11) facing one side of the transmission part (30), so that a closed accommodating space is formed at one end of the piston chamber (11) facing the transmission part (30).

15. Compressor according to claim 11, characterized in that the surface of the limit stop (40) facing the side of the piston body (21) is provided with a flexible anti-friction structure.

16. A refrigeration apparatus comprising a compressor, wherein the compressor is as claimed in any one of claims 1 to 15.