CN114607611A

CN114607611A - Compressor and compression system

Info

Publication number: CN114607611A
Application number: CN202210361979.XA
Authority: CN
Inventors: 谷念
Original assignee: Guangdong Meizhi Precision Manufacturing Co Ltd
Current assignee: Guangdong Meizhi Precision Manufacturing Co Ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-06-10

Abstract

The invention provides a compressor and a compression system, which relate to the field of household appliances, wherein the compressor comprises: a housing; the driving mechanism is arranged in the shell and comprises a driving device and a shielding piece, the shielding piece is arranged at the top of the driving device, and an overflowing opening is formed in the shielding piece; and the compression mechanism is arranged in the shell and is connected with the driving device. The top of the driving device is provided with the shielding piece, and the shielding piece is provided with the overflowing port, so that the discharge of lubricating oil in the shell is reduced under the condition of ensuring the gaseous medium to pass through, the lubricating oil in the shell is ensured to be sufficient, the liquid level of the lubricating oil in the shell is ensured to be high enough, the lubricating effect on the driving device and the compression mechanism is ensured, and the service life and the reliability of the driving device and the compressor are prolonged.

Description

Compressor and compression system

Technical Field

The invention relates to the field of household appliances, in particular to a compressor and a compression system.

Background

Lubricating oil is arranged in a shell of the compressor to play a role in lubrication. During the operation of the compressor, the lubricating oil is possibly discharged from the exhaust port of the shell, and if the liquid level of the lubricating oil in the shell is too low, the driving mechanism is directly not lubricated, so that the service life and the reliability of the compressor are greatly reduced.

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.

A second aspect of the invention provides a compression system.

A first aspect of the present invention provides a compressor comprising: a housing; the driving mechanism is arranged in the shell and comprises a driving device and a shielding piece, the shielding piece is arranged at the end part of the driving device, and an overflowing opening is formed in the shielding piece; and the compression mechanism is arranged in the shell and is connected with the driving device.

The compressor provided by the invention comprises a shell, a driving mechanism and a compression mechanism. The driving mechanism and the compression mechanism are arranged inside the shell, and the driving mechanism is connected with the compression mechanism so as to drive the compression mechanism to compress related media of the refrigerant. Specifically, in the axial direction of the compressor, the shield is located at an end of the drive device facing the discharge port of the compressor.

Further, the drive mechanism includes a drive device and a shutter. The driving device is connected with the compression mechanism and drives the compression mechanism to compress the related media of the refrigerant during operation. Furthermore, the shield is arranged at the end of the drive device and the cover is arranged at least in a partial region of the drive device. In the operation process of the compressor, lubricating oil is filled in the shell to achieve a good lubricating effect.

In addition, during the operation of the compressor, the refrigerant is compressed and then changed into a gaseous medium, and is discharged out of the shell. During the discharge of the gaseous medium, there is a risk that the lubricating oil is discharged together with the gaseous medium. Therefore, the invention is provided with the shielding piece at the end part of the driving device, and the shielding piece is provided with the overflowing port. Therefore, the discharge of the gaseous medium can be ensured through the overflowing port, and the compressor can be further ensured to provide gaseous refrigerant to the outside. More importantly, the shielding piece can play the role of blocking lubricating oil at the end part of the driving device, so that the lubricating oil is blocked by the shielding piece, and the loss of the lubricating oil in the machine shell is reduced. So as to ensure that the interior of the machine shell has enough lubricating oil, and the driving mechanism and the compression mechanism can obtain good lubricating effect.

Further, the lubricating oil adhering to the shutter may drip under gravity onto the drive device and continuously fall along the drive device. In this way, the lubricating oil which continuously falls down can be brought into sufficient contact with the drive device, even into the interior of the drive device. By the design, the lubricating effect of the lubricating oil on the driving device is further improved, particularly, the lubricating oil can be well lubricated on the driving device under the condition that the position of the driving device is higher, and the service life and the reliability of the driving device are further improved.

Therefore, the shielding piece is arranged at the top of the driving device, the overflowing port is arranged on the shielding piece, the discharge of lubricating oil in the shell is reduced under the condition that a gaseous medium is ensured to pass through, the lubricating oil in the shell is ensured to be sufficient, the liquid level of the lubricating oil in the shell is ensured to be high enough, the lubricating effect on the driving device and the compression mechanism is ensured, and the service life and the reliability of the driving device and the compressor are prolonged.

In some possible designs, the number of the flow openings is multiple, and the multiple flow openings are distributed on the shielding piece at intervals.

In this design, the number of the flow-passing ports is plural. Wherein, a plurality of flow openings are distributed on the shielding piece at intervals. Thus, the discharge amount of the gaseous medium and the discharge uniformity of the gaseous medium can be improved through the plurality of flow-through openings distributed at intervals, and the influence on the discharge amount of the gaseous medium caused by the arrangement of the shielding piece is avoided. In addition, the position of the shielding piece without the overflowing port can be used for blocking lubricating oil, and the lubricating oil attached to the part of the structure can also be dripped to different positions of the driving device, so that the uniform lubrication of the driving device is realized.

In some possible designs, the compressor further comprises: the exhaust port is positioned on one side of the shielding piece and communicated with the overflowing port; the backflow port is positioned on the other side of the shielding piece and communicated with the compression mechanism; wherein the total area of the plurality of flow openings is larger than or equal to the area of the exhaust opening.

In this design, the compressor also includes a discharge port and a return port. Wherein, the exhaust port is arranged at one side of the shell, and the return port is arranged at the other side of the shell. During the operation of the compressor, external liquid refrigerant enters the driving mechanism from the return port, the liquid refrigerant is compressed and then changed into gaseous refrigerant, and the gaseous refrigerant is discharged from the exhaust port again. In addition, the exhaust port is located one side of the shielding piece, the backflow port is located the other side of the shielding piece, and the overflowing port is located between the backflow port and the exhaust port. In the operation process of the compressor, the compressed gaseous refrigerant passes through the flow passing port and is discharged from the exhaust port.

In particular, the total area of the plurality of flow-through openings is greater than or equal to the area of the exhaust opening. Therefore, the air displacement of the exhaust port can not be influenced by the overflowing port, and especially, enough gaseous refrigerant can still flow to the exhaust port after the overflowing port, so that the air displacement of the compressor is ensured.

In some possible designs, the compression mechanism includes: the compression cavity is provided with an air outlet; the piston is arranged in the compression cavity and is connected with the driving device; wherein the total area of the plurality of flow openings is larger than or equal to the area of the air outlet.

In this design, the compression mechanism includes a compression chamber and a piston. Wherein, the compression chamber sets up in the casing, and the compression chamber has the gas outlet, and the gas outlet communicates in the inner space of casing. In addition, the piston is movably arranged in the compression cavity, is connected with the driving device and can compress the refrigerant under the driving of the driving device.

Furthermore, the gaseous refrigerant formed after the piston compression is discharged into the shell through the air outlet. The invention optimizes the total area of the plurality of overflowing openings and ensures that the total area of the overflowing openings is larger than or equal to the area of the exhaust port. Therefore, the gaseous refrigerant flowing out of the air outlet can be ensured to smoothly pass through the flow passing opening, and the shielding piece is ensured not to influence the amount of the gaseous refrigerant passing through the flow passing opening, so that the sufficient air displacement of the compressor is ensured.

In some possible designs, the drive device includes: and the inlet end of the overflowing channel faces the compression mechanism, and the outlet end of the overflowing channel faces the overflowing port.

In the design, the compression mechanism is positioned at the bottom of the driving mechanism, the exhaust port is arranged at the top of the shell, and the gaseous refrigerant flowing out of the compression mechanism continuously rises in the shell and is exhausted from the exhaust port. Therefore, the gaseous refrigerant needs to pass through the driving device in the casing. The driving device provided by the invention further comprises an overflowing channel. The overflowing channel extends along the height direction of the compressor, and the inlet end of the overflowing channel is arranged towards the compression mechanism, so that gaseous refrigerants compressed by the compression mechanism enter the overflowing channel; the exit end of overflowing the passageway sets up towards overflowing the mouth to make and flow through the gaseous refrigerant of passageway exhaust and directly pass the shielding piece through overflowing the mouth, and further discharge through the gas vent.

Particularly, the exit end of the flow passage faces the flow port, so that the gaseous refrigerant flowing out from the flow passage directly passes through the flow port, the contact between the part of the gaseous refrigerant and the shielding piece is reduced, the obstruction in the flowing process of the gaseous refrigerant is reduced, and the gaseous refrigerant is guaranteed to be smoothly discharged.

In some possible designs, the number of the flow passage is multiple, and the total area of the multiple flow openings is larger than or equal to the total area of the multiple flow passages.

In this design, the number of the flow passage is plural. The outlet ends of the overflowing channels correspond to the overflowing openings respectively, so that gaseous refrigerants discharged by each overflowing channel can be discharged through the overflowing openings directly. In addition, the total area of the plurality of flow openings is larger than or equal to the total area of the plurality of flow channels. That is, the total area of the flow passing openings is ensured to be larger than the total flow passing area of all the flow passing channels. Therefore, after the gaseous refrigerant is discharged from the outlet end of the overflowing channel, the part of the refrigerant can be ensured to smoothly pass through the overflowing opening, and the part of the refrigerant is prevented from being accumulated below the blocking piece due to blocking.

In some possible designs, the ratio of the total area of the plurality of flow openings to the total area of the plurality of flow passages is less than or equal to 3.

In this design, the too big intensity that can reduce blanking member self of the area of overflowing the mouth also can influence the effect that blocks of blanking member to lubricating oil simultaneously. Therefore, the total area of the multiple overflowing openings is optimized, the ratio of the total area of the multiple overflowing openings to the total area of the multiple overflowing passages is ensured to be less than or equal to 3, and the area of the multiple overflowing openings is appropriate. Like this, can ensure on the one hand that the overflow mouth can make the gaseous refrigerant pass through the shielding piece smoothly, on the other hand has also guaranteed the intensity of shielding piece self and has guaranteed the effect of sheltering from of shielding piece to lubricating oil.

In some possible designs, the drive device includes: the motor, the motor includes stator module and rotor subassembly, and the shielding piece sets up on stator module, and the rotor subassembly is connected with compressing mechanism through the transmission shaft.

In this design, the drive means comprises an electric motor. The motor comprises an electronic component and a rotor component which are matched with each other; the rotor assembly is connected with the compression mechanism through the transmission shaft, and in the running process of the motor, the rotor assembly conveys torque to the compression mechanism through the transmission shaft so as to compress the refrigerant.

In addition, the shielding piece is arranged on the stator assembly and is positioned above the stator assembly, so that the stable connection of the shielding piece is ensured, the shielding piece is ensured to effectively shield lubricating oil, and meanwhile, the lubricating oil attached to the shielding piece can drip onto the stator assembly and the rotor assembly, so that the stator assembly and the rotor assembly are effectively lubricated.

In some possible designs, the stator assembly includes: a stator core including a winding slot; the winding, at least one part of the winding locates in the winding slot; and the overcurrent channel is positioned between the two groups of windings in the same winding slot.

In this design, the stator assembly includes a stator core and windings. The stator core comprises stator teeth, and a winding slot is formed between every two adjacent stator teeth. Further, a winding is wound on the stator teeth, and at least a portion of the winding is located in the winding slot. In particular, after winding of the windings is completed, a certain space is provided between two groups of windings in the same winding slot, and the space is the above-described overcurrent channel. Therefore, after the stator core of the compressor is directly wound with the winding, the space left in the winding slot is used as an overflowing channel, on one hand, the gaseous refrigerant can smoothly pass through the driving device, and on the other hand, the structure of the driving device is simplified.

In some possible designs, the stator assembly further comprises: and the insulating framework is arranged on the stator core, and the shielding piece is arranged on the insulating framework.

In this design, the stator assembly further includes an insulating skeleton. Wherein, insulating skeleton setting is on stator core to at least partial insulating skeleton setting is at stator core's top. In addition, the shielding piece is arranged on the insulating framework and positioned at the top of the stator core so as to ensure the stable installation of the shielding piece.

In some possible designs, the shield is a cover plate.

In this design, the shield employs a cover plate. The cover plate is simple in structure and convenient to process and manufacture. And, the structure of apron is small and exquisite, the staff assembly of being convenient for.

In some possible designs, the shield is ring-shaped or arc-shaped.

In this design, the shield is ring-shaped. That is, the shield is a circular cover plate structure. Like this, the shape of shielding piece and the stator module's of motor structure phase-match for shielding piece can play the effect of sheltering from in the scope of stator module top round, and then blocks that lubricating oil is excessive in the round scope.

In some possible designs, the shield is arc-shaped.

In this design, the shield is arcuate. That is, the shield is an arcuate cover plate structure. Like this, the shape of shielding piece and the partial structure phase-match of the stator module of motor for shielding piece can play the effect of sheltering from in the partial range at stator module top, and then blocks lubricating oil excessive in the arc scope.

In some possible designs, the shutter is removably connected to the drive means.

In this design, the shield is removably connected to the drive device. Thus, after the compressor has been in use for a period of time, the shield can be removed for cleaning or replacement. And when drive arrangement broke down, also can dismantle earlier the back with the shielding piece and overhaul drive arrangement again, the staff's of being convenient for actual operation avoids the shielding piece to influence the staff to the maintenance of drive arrangement.

In some possible designs, the shutter is fixedly connected to the drive device.

In this design, the shield is fixedly connected to the drive. Thus, the connecting strength between the shielding piece and the driving device can be ensured, the whole structure of the driving mechanism is simplified, the use of connecting parts is reduced, and the manufacturing process of the compressor is reduced.

In some possible designs, the drive device comprises a first connection portion, and the shield is provided with a second connection portion, the first connection portion being connected with the second connection portion.

In this design, the driving device includes a first connecting portion, the shielding member is provided with a second connecting portion, and the first connecting portion is adapted to the second connecting portion. During the process of mounting the shield, the shield can be firmly mounted on the driving device through the matching of the first connecting part and the second connecting part.

In some possible designs, one of the first and second connecting portions is a snap and the other is a slot.

In this design, the first connecting portion and the second connecting portion may adopt a matched buckle and a clamping groove. Like this, at the in-process of installation shielding piece, can be directly with in the buckle joint goes up the draw-in groove, and then firmly install the shielding piece on drive arrangement. Specifically, the first connecting part may be a buckle, and the second connecting part may be a slot; or the first connecting part adopts a clamping groove and the second connecting part adopts a buckle.

In some possible designs, the first connection portion is a first connection hole, the second connection portion is a second connection hole, and the first connection hole and the second connection hole are connected by a fastener.

In this design, the first connection portion is a first connection hole, and the second connection portion is a second connection hole; in addition, the compressor includes a fastener. In this way, during installation of the shield, the first mounting hole and the second mounting hole can be aligned, and then the fastener can be passed through the first mounting hole and the second mounting hole, thereby firmly installing the shield on the driving device. Specifically, the fastener may adopt a bolt or a screw structure.

A second aspect of the present invention provides a compression system comprising: a compressor according to the first aspect of the present invention; the inlet end of the pipeline is communicated with the exhaust port of the casing, and the outlet end of the pipeline is communicated with the return port of the casing.

The invention proposes a compression system comprising a compressor according to the first aspect of the invention. Therefore, the overall beneficial effects of the compressor are achieved, and are not discussed herein. In addition, the compression system also comprises a pipeline, wherein the inlet end of the pipeline is communicated with the exhaust port of the shell, and the outlet end of the pipeline is communicated with the return port of the shell. Therefore, the compressed gaseous refrigerant enters the pipeline from the exhaust port of the shell, and after heat exchange, the gaseous refrigerant flows back to the compression cavity of the compression mechanism again through the return port of the shell, and then flows back and forth.

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 diagram of the compression system of one embodiment of the present invention;

FIG. 2 is a schematic view showing the installation position of the shielding member in the compressor according to one embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of the structure shown in FIG. 2 at A;

fig. 4 is a partial enlarged view of the structure shown in fig. 2 at B.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:

102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, fluid return, 202, pipeline.

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 compression system provided according to some embodiments of the present invention are described below with reference to fig. 1 to 4.

As shown in fig. 1, a first embodiment of the present invention provides a compressor including a shell 102, a driving mechanism 104, and a compressing mechanism 112. The driving mechanism 104 and the compressing mechanism 112 are disposed inside the casing 102, and the driving mechanism 104 is connected to the compressing mechanism 112 to drive the compressing mechanism 112 to compress the medium related to the refrigerant.

Further, as shown in fig. 1 and 2, the drive mechanism 104 includes a drive device 106 and a shutter 108. The driving device 106 is connected to the compression mechanism 112, and drives the compression mechanism 112 to compress the medium related to the refrigerant during operation. Furthermore, a shutter 108 is arranged at the end of the drive 106 and a cover is arranged over at least a partial region of the drive 106. During the operation of the compressor, the interior of the casing 102 is filled with lubricating oil to achieve a good lubricating effect. Specifically, in the axial direction of the compressor, the shutter 108 is located at an end of the drive device 106 facing the discharge port 114 of the compressor.

In addition, during the operation of the compressor, the refrigerant is compressed and then changed into a gaseous medium, and is discharged to the outside of the casing 102. During the discharge of the gaseous medium, there is a risk that the lubricating oil is discharged together with the gaseous medium. Therefore, the present invention is provided with a shutter 108 at the end of the driving device 106, and a flow port 110 is opened in the shutter 108. Thus, the discharge of the gaseous medium can be ensured through the flow passing port 110, and the compressor can be further ensured to supply the gaseous refrigerant to the outside.

More importantly, the shield 108 can act as a lubricant barrier at the end of the driving device 106, so that the lubricant is blocked by the shield 108 to reduce the lubricant loss inside the casing 102. To ensure that there is a sufficient amount of lubricant inside the housing 102 to provide good lubrication of the drive mechanism 104 and the compression mechanism 112.

Further, the lubricant oil adhered to the shutter 108 drops by gravity onto the driving device 106 and drops down along the driving device 106. In this way, the lubricating oil falling continuously can be brought into sufficient contact with the drive device 106, even into the interior of the drive device 106.

By such a design, the lubricating effect of the lubricating oil on the driving device 106 is further improved, and particularly, under the condition that the position of the driving device 106 is high, the lubricating oil can be ensured to lubricate the driving device 106 well, so that the service life and the reliability of the driving device 106 are further improved.

Therefore, as shown in fig. 1 and fig. 2, the invention has the shielding piece 108 arranged on the top of the driving device 106, and the flow passing port 110 arranged on the shielding piece 108, so as to reduce the discharge of the lubricating oil in the casing 102 under the condition of ensuring the gaseous medium to pass through, ensure the lubricating oil in the casing 102 to be sufficient, ensure the liquid level of the lubricating oil in the casing 102 to be sufficiently high, ensure the lubricating effect on the driving device 106 and the compression mechanism 112, and prolong the service life and the reliability of the driving device 106 and the compressor.

A second embodiment of the present invention provides a compressor, further comprising, in addition to the first embodiment:

as shown in fig. 1 and 2, the number of the flow-passing ports 110 is plural. Wherein the plurality of flow openings 110 are spaced apart on the shield 108. In this way, the discharge amount of the gaseous medium and the discharge uniformity of the gaseous medium can be improved by the plurality of flow-through holes 110 which are distributed at intervals, and the influence on the discharge amount of the gaseous medium due to the arrangement of the shutter 108 can be avoided. In addition, the position of the blocking piece 108 without the flow-through opening 110 can be used for blocking lubricating oil, and lubricating oil attached to the part of the structure can also be dripped to different positions of the driving device 106, so that uniform lubrication of the driving device 106 is realized.

Specifically, as shown in fig. 1 and 2, a plurality of flow ports 110 are annularly spaced on the shroud 108.

In addition, the compressor provided in the embodiment of the present application has all the advantages of the compressor provided in the first embodiment, and can reduce the discharge of the lubricating oil in the casing 102 under the condition of ensuring the gaseous medium to pass through, ensure that the lubricating oil in the casing 102 is sufficient, ensure that the liquid level of the lubricating oil in the casing 102 is sufficiently high, ensure the lubricating effect on the driving device 106 and the compression mechanism 112, and prolong the service life and the reliability of the driving device 106 and the compressor.

A third embodiment of the present invention provides a compressor, further comprising, in addition to the second embodiment:

as shown in fig. 1, the compressor further includes a discharge port 114 and a return port 130. The exhaust port 114 is provided at one end of the casing 102, and the return port 130 is provided at the other end of the casing 102. During operation of the compressor, external liquid refrigerant enters the driving mechanism 104 through the return port 130, the liquid refrigerant is compressed and then changed into gaseous refrigerant, and the gaseous refrigerant is discharged from the discharge port 114 again. In addition, the exhaust port 114 is located on one side of the shutter 108, the return port 130 is located on the other side of the shutter 108, and the flow port 110 is located between the return port 130 and the exhaust port 114. During operation of the compressor, the compressed gaseous refrigerant passes through the inlet 110 and is discharged from the outlet 114.

In particular, the total area of the plurality of flow openings 110 is greater than or equal to the area of the exhaust opening 114. Therefore, the discharge amount of the discharge port 114 is not affected by the flow passing port 110, and particularly, sufficient gaseous refrigerant flows to the discharge port 114 after passing through the flow passing port 110, thereby ensuring the discharge amount of the compressor.

Here, it should be noted that: the shielding piece 108 can adopt a baffle structure, and a plurality of through holes are formed in the shielding piece 108 to be used as the overflowing ports 110; the area of the single flow port 110 is the area circled by the thick solid line in fig. 3, and the total area of the plurality of flow ports 110 is equal to the area of the single flow port 110 multiplied by the number of flow ports 110. Those skilled in the art will appreciate the total area of the plurality of flow ports 110, as well as the area of the exhaust port 114.

A fourth embodiment of the present invention provides a compressor, further comprising, in addition to the second and third embodiments:

as shown in FIG. 1, the compression mechanism 112 includes a compression chamber 116 and a piston 120. Wherein, compression chamber 116 is arranged in casing 102, and compression chamber 116 has gas outlet 118, and gas outlet 118 communicates with the inner space of casing. In addition, the piston 120 is movably disposed in the compression chamber 116, and the piston 120 is connected to the driving device 106 and can compress the refrigerant under the driving of the driving device 106.

Further, the gaseous refrigerant compressed by the piston 120 is discharged into the interior of the housing through the outlet 118. The present invention optimizes the total area of the plurality of flow ports 110 to ensure that the total area of the flow ports 110 is greater than or equal to the area of the exhaust port 114. Thus, the gaseous refrigerant flowing out of the air outlet 118 can be ensured to smoothly pass through the flow port 110, and the shielding piece 108 is ensured not to influence the amount of the gaseous refrigerant passing through the flow port 110, so that the sufficient air displacement of the compressor is ensured.

Here, it should be noted that: the shielding piece 108 can adopt a baffle structure, and a plurality of through holes are formed in the shielding piece 108 to be used as the overflowing ports 110; the area of the single flow port 110 is the area circled by the thick solid line in fig. 3, and the total area of the plurality of flow ports 110 is equal to the area of the single flow port 110 multiplied by the number of flow ports 110. In addition, during operation of the compressor, the medium compressed in the compression chamber 116 may be discharged through the gas outlet 118. Those skilled in the art will appreciate the total area of the plurality of flow openings 110, as well as the area of the air outlet 118.

In addition, the compressor provided by the embodiment of the present application has all the benefits of the compressor provided by the first embodiment, and can reduce the discharge of the lubricating oil in the casing 102 under the condition of ensuring that the gaseous medium passes through, so as to ensure that the lubricating oil in the casing 102 is sufficient, ensure that the liquid level of the lubricating oil in the casing 102 is sufficiently high, ensure the lubricating effect on the driving device 106 and the compression mechanism 112, and prolong the service life and reliability of the driving device 106 and the compressor.

A fifth embodiment of the present invention provides a compressor, further comprising, in addition to the second, third and fourth embodiments:

as shown in fig. 1, the compression mechanism 112 is located at the bottom of the driving mechanism 104, the exhaust port 114 is located at the top of the casing 102, and the gaseous refrigerant flowing out of the compression mechanism 112 is continuously lifted in the casing 102 and exhausted from the exhaust port 114. Therefore, the gaseous refrigerant needs to pass through the driving device 106 in the casing 102.

As shown in fig. 1 and fig. 2, the driving device 106 according to the present invention further includes a flow passage 122. The overflow channel 122 extends along the height direction of the compressor, and the inlet end of the overflow channel 122 is disposed toward the compression mechanism 112, so that the gaseous refrigerant compressed by the compression mechanism 112 enters the overflow channel 122; the outlet end of the transfer passage 122 is disposed toward the transfer port 110, so that the gaseous refrigerant discharged through the transfer passage 122 directly passes through the shielding member 108 through the transfer port 110 and further discharged through the discharge port 114.

Particularly, the outlet end of the flow passage 122 faces the flow port 110, so that the gaseous refrigerant flowing out of the flow passage 122 directly passes through the flow port 110, the contact between the gaseous refrigerant and the shielding member 108 is reduced, the obstruction in the flowing process of the gaseous refrigerant is reduced, and the gaseous refrigerant is ensured to be smoothly discharged.

Here, it should be noted that: the shielding piece 108 can adopt a baffle structure, and a plurality of through holes are formed in the shielding piece 108 to be used as the overflowing ports 110; the area of the single flow port 110 is the area circled by the thick solid line in fig. 3, and the total area of the plurality of flow ports 110 is equal to the area of the single flow port 110 multiplied by the number of flow ports 110.

Further, in the axial direction of the compressor, the transfer passage 122 penetrates the drive mechanism 104; during operation of the compressor, compressed medium can flow through the drive mechanism 104 via the flow passage 122. Therefore, the area of a single transfer passage 122 (i.e., the area circled by the thick solid line in fig. 4) can be obtained by projecting the transfer passage 122 along the axial direction of the compressor; the total area of the plurality of transfer channels 122 is equal to the area of a single transfer channel 122 multiplied by the number of transfer channels 122. Those skilled in the art will appreciate the total area of the plurality of flow openings 110 and the total area of the plurality of flow passages 122.

A sixth embodiment of the present invention provides a compressor, further comprising, in addition to the fifth embodiment:

as shown in fig. 1, the number of the flow passage 122 is plural. The outlet ends of the plurality of flow channels 122 respectively correspond to the plurality of flow openings 110, so that gaseous refrigerant discharged from each of the flow channels 122 can be directly discharged through the flow openings 110. In addition, the total area of the plurality of flow openings 110 is greater than or equal to the total area of the plurality of flow channels 122. That is, the total area of the flow passing openings 110 is ensured to be larger than the total flow passing area of all the flow passing channels 122. Thus, after the gaseous refrigerant is discharged from the outlet end of the flow passage 122, the portion of the refrigerant can be ensured to smoothly pass through the flow port 110, and the portion of the refrigerant can be prevented from being accumulated below the blocking member due to blocking.

In this embodiment, as shown in fig. 1, the excessive area of the flow opening 110 may reduce the strength of the shielding member 108 itself, and may also affect the effect of the shielding member 108 on blocking the lubricating oil. Therefore, the present invention optimizes the total area of the plurality of flow openings 110 to ensure that the ratio of the total area of the plurality of flow openings 110 to the total area of the plurality of flow channels 122 is less than or equal to 3, so that the area of the plurality of flow openings 110 is suitable. Therefore, on one hand, the flow passing port 110 can ensure that the gaseous refrigerant can smoothly pass through the shielding piece 108, on the other hand, the strength of the shielding piece 108 per se is also ensured, and the shielding effect of the shielding piece 108 on the lubricating oil is also ensured.

In this embodiment, as shown in fig. 1, the total area of the plurality of flow-through openings 110 is further optimized by the present invention, so as to ensure that the ratio of the total area of the plurality of flow-through openings 110 to the total area of the plurality of flow-through channels 122 is less than or equal to 2.

A seventh embodiment of the present invention provides a compressor, further comprising, in addition to the fifth and sixth embodiments:

as shown in fig. 1, the drive device 106 includes a motor. Wherein the motor includes an electronics assembly and a rotor assembly 126 for use therewith; the rotor assembly 126 is connected with the compression mechanism 112 through a transmission shaft, and in the operation process of the motor, the rotor assembly 126 transmits torque to the compression mechanism 112 through the transmission shaft, so that the refrigerant is compressed.

In addition, as shown in fig. 1, the shielding member 108 is disposed on the stator assembly 124 and located above the stator assembly 124, so as to ensure stable connection of the shielding member 108 and effective shielding of the shielding member 108 from the lubricating oil, and at the same time, the lubricating oil attached to the shielding member 108 can drip onto the stator assembly 124 and the rotor assembly 126, so as to effectively lubricate the stator assembly 124 and the rotor assembly 126.

Further in this embodiment, as shown in fig. 1, stator assembly 124 includes a stator core and windings 128. The stator core comprises stator teeth, and a winding slot is formed between every two adjacent stator teeth. Further, the winding 128 is wound on the stator teeth, and at least a portion of the winding 128 is located in the winding slots.

In particular, as shown in fig. 1, after the windings 128 are wound, there is a certain space between two groups of windings 128 in the same winding slot, and the space is the through-current channel 122 described above. Therefore, after the winding 128 of the compressor is directly wound by the stator core, the space left in the winding slot is used as the flow passage 122, so that the gaseous refrigerant can smoothly pass through the driving device 106, and the structure of the driving device 106 is simplified.

Specifically, as shown in fig. 1, at the open ends of the stator slots, the outer circle of the stator core is taken as the boundary of the stator slots, that is, in the axial direction of the stator core, the area of the stator slots can be regarded as the area of the space formed by the slot walls of the stator slots and the inner circle of the stator core together. That is, the area of each of the transfer channels 122 is: the stator teeth are wound with windings 128 in the axial direction of the stator core, the area of the stator teeth. After assembly, the area of the single flow passage 122 is: and (3) projecting along the axial direction of the stator core, and obtaining the projected area (namely the area encircled by a thick solid line in fig. 4) of the residual space after the stator slot is wound.

An eighth embodiment of the present invention provides a compressor, further comprising, in addition to the fifth, sixth and seventh embodiments:

as shown in fig. 1, the stator assembly 124 also includes an insulating backbone. Wherein, insulating skeleton setting is on stator core to at least partial insulating skeleton setting is at stator core's top. Further, the shield 108 is provided on the insulating bobbin and positioned on the top of the stator core to ensure stable mounting of the shield 108.

In addition, the compressor provided in the embodiment of the present application has all the advantages of the compressor provided in the first embodiment, and can reduce the discharge of the lubricating oil in the casing 102 under the condition of ensuring the gaseous medium to pass through, ensure that the lubricating oil in the casing 102 is sufficient, ensure that the liquid level of the lubricating oil in the casing 102 is sufficiently high, ensure the lubricating effect on the driving device 106 and the compression mechanism 112, and prolong the service life and reliability of the driving device 106 and the compressor

In addition to any of the above embodiments, as shown in fig. 1 and 2, the cover plate is adopted as the shutter 108. The cover plate is simple in structure and convenient to process and manufacture. And the structure of apron is small and exquisite, the staff assembly of being convenient for.

In addition to any of the above embodiments, the covering member 108 is in the shape of a ring (not shown). That is, the shroud 108 is a circular ring shaped cover plate structure. In this way, the shape of the shielding piece 108 is matched with the structure of the stator assembly 124 of the motor, so that the shielding piece 108 can play a shielding role within a circle range at the top of the stator assembly 124, and further can block the lubricating oil from overflowing within a circle range.

In addition to any of the above embodiments, further, as shown in fig. 1 and 2, the shield 108 is arc-shaped. That is, the shroud 108 is an arcuate cover plate structure. In this way, the shape of the shielding member 108 matches with the partial structure of the stator assembly 124 of the motor, so that the shielding member 108 can shield the partial range of the top of the stator assembly 124, and further shield the lubricating oil from overflowing in the arc range.

In addition to any of the above embodiments, further, as shown in fig. 1 and 2, the shutter 108 may be detachably connected to the driving device 106. In this way, the shroud 108 can be removed for cleaning or replacement after a period of compressor use. Moreover, when the driving device 106 fails, the shielding piece 108 can be detached and then the driving device 106 can be overhauled, so that the actual operation of a worker is facilitated, and the shielding piece 108 is prevented from influencing the overhaul of the worker on the driving device 106.

The driving device 106 includes a first connecting portion (not shown), the shielding member 108 is provided with a second connecting portion (not shown), and the first connecting portion is adapted to the second connecting portion. During the process of mounting the shield 108, the shield 108 can be securely mounted to the drive device 106 by the engagement of the first and second connection portions.

Specifically, the first connecting portion and the second connecting portion may adopt a matched buckle and a slot (not shown in the figure). In this way, the snap-fit can be directly snapped into the snap-fit groove during installation of the shield 108, thereby securely mounting the shield 108 to the drive device 106. Specifically, the first connecting part may adopt a buckle, and the second connecting part adopts a clamping groove; or the first connecting part adopts a clamping groove and the second connecting part adopts a buckle.

In addition, the first connection portion may be a first connection hole (not shown), and the second connection portion may be a second connection hole (not shown); in addition, the compressor includes fasteners (not shown). Thus, during installation of the shield 108, the first and second mounting holes can be aligned and then fasteners can be passed through the first and second mounting holes to securely mount the shield 108 to the drive device 106. Specifically, the fastener may adopt a bolt or a screw structure.

In addition to any of the above embodiments, the shutter 108 may also be fixedly connected to the driving device 106. In this way, the strength of connection between the shutter 108 and the driving device 106 can be ensured, the entire structure of the driving mechanism 104 can be simplified, the use of connecting parts can be reduced, and the number of manufacturing processes of the compressor can be reduced.

On the basis of any of the above embodiments, the compressor includes the main bearing, the cylinder, the piston 120, and so on, which are not discussed herein.

On the basis of any one of the above embodiments, the compressor provided by the invention is a horizontal compressor.

As shown in fig. 1, a ninth embodiment of the present invention proposes a compression system comprising: a compressor as in any of the embodiments described above, and a line 202.

As shown in fig. 1, the compression system proposed by the present embodiment includes the compressor according to any one of the above embodiments. Therefore, the above-mentioned compressor has all the advantages of reducing the discharge of the lubricant in the casing 102, ensuring sufficient lubricant in the casing 102, ensuring a sufficiently high level of the lubricant in the casing 102, ensuring a lubricating effect on the driving device 106 and the compression mechanism 112, and prolonging the service life and reliability of the driving device 106 and the compressor, while ensuring the passage of the gaseous medium, which will not be discussed in detail herein.

In addition, as shown in FIG. 1, the compression system further includes a conduit 202, an inlet end of the conduit 202 being in communication with the discharge port 114 of the casing 102, and an outlet end of the conduit 202 being in communication with the return port 130 of the casing 102. Thus, the compressed gaseous refrigerant enters the pipe 202 from the gas outlet 114 of the casing 102, exchanges heat with the gaseous refrigerant, and flows back to the compression chamber 116 of the compression mechanism 112 through the return port 130 of the casing 102, thereby reciprocating.

Therefore, as shown in fig. 1 and fig. 2, the compressor proposed by the present invention includes a casing 102, a driving mechanism 104, a compressing mechanism 112, and the like; the driving mechanism 104 includes a driving device 106 and a shutter 108, the driving device 106 can be a motor, and the shutter 108 can be a shutter. The shielding member 108 is connected to the insulating frame of the driving device 106, and the shielding member 108 is provided with a plurality of flow ports 110, and the total area of all the flow ports 110 is α. Thus, the flow port 110 ensures the discharge of the gaseous medium, and the shielding member 108 can act as a lubricant blocking member at the top of the driving device 106, so that the lubricant is blocked by the shielding member 108 to reduce the loss of the lubricant inside the casing 102. To ensure that a sufficient amount of lubricant is present inside the casing 102 to provide good lubrication of the driving mechanism 104 and the compression mechanism 112, which greatly improves operability and convenience.

Further, as shown in fig. 1 and 2, the housing 102 includes an exhaust port 114, and the total area α of all of the flow-through ports 110 is larger than the area of the exhaust port 114. Therefore, the discharge amount of the discharge port 114 is not affected by the flow passing port 110, and particularly, sufficient gaseous refrigerant flows to the discharge port 114 after passing through the flow passing port 110, thereby ensuring the discharge amount of the compressor.

Further, as shown in fig. 1 and 2, the compression chamber 116 of the compression mechanism 112 has an air outlet 118, and the total area α of all the flow-through ports 110 is larger than the area of the air outlet 114. Thus, the gaseous refrigerant flowing out of the air outlet 118 can be ensured to smoothly pass through the flow port 110, and the shielding piece 108 is ensured not to influence the amount of the gaseous refrigerant passing through the flow port 110, so that the sufficient air displacement of the compressor is ensured.

Further, as shown in fig. 1 and 2, the driving device 106 has a plurality of flow-passing channels 122, the total area of the plurality of flow-passing channels 122 is β, and the total area α of all flow-passing openings 110 is greater than the total area β of all flow-passing channels 122. More specifically, 2 β ≧ α ≧ β. Therefore, on one hand, the flow passing port 110 can ensure that the gaseous refrigerant can smoothly pass through the shielding piece 108, on the other hand, the strength of the shielding piece 108 per se is also ensured, and the shielding effect of the shielding piece 108 on the lubricating oil is also ensured.

Further, as shown in fig. 1 and fig. 2, the shielding member 108 is connected to the insulating frame of the motor through a fastening structure, where the fastening structure includes a fastening and a fastening groove engaged with the fastening; the buckle is arranged on the insulating framework, and the clamping groove is arranged on the shielding piece 108. In addition, the buckle is an elastic buckle. Of course, the fixing form of the shielding member 108 and the insulating frame of the motor is not limited to the fastener and the slot, and other fixing forms may be adopted. In this way, the shroud 108 can be removed for cleaning or replacement after a period of compressor use. Moreover, when the driving device 106 fails, the shielding piece 108 can be detached and then the driving device 106 can be overhauled, so that the actual operation of a worker is facilitated, and the shielding piece 108 is prevented from influencing the overhaul of the worker on the driving device 106.

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 driving mechanism is arranged in the shell and comprises a driving device and a shielding piece, the shielding piece is arranged at the end part of the driving device, and an overflowing opening is formed in the shielding piece;

and the compression mechanism is arranged in the shell and is connected with the driving device.

2. The compressor of claim 1,

the number of the overflowing openings is multiple, and the overflowing openings are distributed on the shielding piece at intervals.

3. The compressor of claim 2, wherein the casing comprises:

the exhaust port is positioned on one side of the shielding piece and communicated with the flow passing port;

the backflow port is positioned on the other side of the shielding piece and communicated with the compression mechanism;

wherein the total area of the plurality of flow passing openings is greater than or equal to the area of the exhaust opening.

4. The compressor of claim 2, wherein the compression mechanism comprises:

a compression chamber having an air outlet;

the piston is arranged in the compression cavity and is connected with the driving device;

wherein the total area of the plurality of flow passing openings is greater than or equal to the area of the air outlet.

5. The compressor of claim 2, wherein the drive means comprises:

the inlet end of the overflowing channel faces the compression mechanism, and the outlet end of the overflowing channel faces the overflowing opening.

6. Compressor in accordance with claim 5,

the number of the overflowing passages is multiple, and the total area of the overflowing openings is larger than or equal to that of the overflowing passages.

7. The compressor of claim 6,

the ratio of the total area of the plurality of flow openings to the total area of the plurality of flow channels is less than or equal to 3.

8. The compressor of claim 5, wherein the drive means comprises:

the motor comprises a stator assembly and a rotor assembly, the shielding piece is arranged on the stator assembly, and the rotor assembly is connected with the compression mechanism through a transmission shaft.

9. The compressor of claim 8, wherein the stator assembly comprises:

a stator core including a winding slot;

a winding, at least a portion of the winding being located within the winding slot;

and the overcurrent channel is positioned between the two groups of windings in the same winding slot.

10. The compressor of claim 9, wherein the stator assembly further comprises:

and the insulating framework is arranged on the stator core, and the shielding piece is arranged on the insulating framework.

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

the shielding piece is a cover plate; and/or

The shielding piece is annular or arc-shaped.

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

the shielding piece is detachably connected or fixedly connected with the driving device.

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

the driving device comprises a first connecting part, a second connecting part is arranged on the shielding piece, and the first connecting part is connected with the second connecting part.

14. The compressor of claim 13,

one of the first connecting part and the second connecting part is a buckle, and the other one is a clamping groove; or

The first connecting portion is a first connecting hole, the second connecting portion is a second connecting hole, and the first connecting hole and the second connecting hole are connected through a fastener.

15. A compression system, comprising:

a compressor according to any one of claims 1 to 14;

the inlet end of the pipeline is communicated with the air outlet of the shell, and the outlet end of the pipeline is communicated with the return port of the shell.