CN106382228B

CN106382228B - Compressor with a compressor housing having a plurality of compressor blades

Info

Publication number: CN106382228B
Application number: CN201611036519.0A
Authority: CN
Inventors: 张巍; 伏拥军; 黄年周
Original assignee: Guangdong Meizhi Precision Manufacturing Co Ltd
Current assignee: Guangdong Meizhi Precision Manufacturing Co Ltd
Priority date: 2016-11-18
Filing date: 2016-11-18
Publication date: 2020-05-22
Anticipated expiration: 2036-11-18
Also published as: CN106382228A

Abstract

The invention discloses a compressor, comprising: a housing; a compression mechanism part including a cylinder provided with an exhaust port and an intake port; motor portion, motor portion is including fixing stator and the rotor on the internal perisporium of casing, the stator includes stator core and coil winding, the part that is located the up end of stator of coil winding is first solenoid, the part that is located the lower terminal surface of stator of coil winding is the second solenoid, link to each other through the slope section between the internal perisporium of second solenoid and the lower terminal surface of second solenoid, the slope section is the downward sloping extension in outside orientation, the length of slope section is L2, the internal diameter of casing is D, the external diameter of first solenoid is D1, wherein L2, D and D1 satisfy one in the following relation at least: d1 is more than or equal to 0.92D, and L2 is more than or equal to 10 mm. The compressor of the invention reduces the oil output of the compressor and avoids the influence of the oil film formed by the refrigerating machine oil on the heat exchanger on the heat exchange performance of the heat exchanger.

Description

Compressor with a compressor housing having a plurality of compressor blades

Technical Field

The invention relates to the field of refrigeration, in particular to a compressor.

Background

The related art air conditioning rotary compressor requires refrigerating machine oil inside the compressor to perform cooling, sealing and lubricating functions during operation. During the circulation operation of the refrigeration system, the refrigerating machine oil generally flows into the heat exchanger along with the refrigerant discharged from the compressor. The refrigerating machine oil can be retained on the inner wall of the heat exchanger to form a thick oil film, and the heat exchange performance of the heat exchanger is reduced due to the small heat conductivity coefficient of the oil film, so that the refrigerating or heating capacity of the air conditioner is influenced. Meanwhile, internal parts of the compressor are abraded due to lack of lubrication of the refrigerating machine oil, so that the performance of the compressor is influenced, and the reliability of the compressor is reduced.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention provides a compressor, which reduces the oil output of the compressor and avoids the influence on the heat exchange performance of a heat exchanger caused by the oil film formed on the heat exchanger by the refrigerating machine oil.

The compressor according to the embodiment of the present invention includes: the air conditioner comprises a shell, wherein an exhaust pipe and an air inlet pipe are arranged on the shell; a compression mechanism part arranged in the housing, the compression mechanism part including a cylinder provided with an exhaust port and an intake port; motor portion, motor portion establishes in the casing and be located the top of compressing mechanism portion, motor portion includes stator and rotor, the stator is fixed on the internal perisporium of casing, the stator includes stator core and coil winding, coil winding is located the part of the up end of stator is first solenoid, coil winding is located the part of the lower terminal surface of stator is the second solenoid, the internal perisporium of second solenoid with link to each other through the slope section between the lower terminal surface of second solenoid, the slope section is the downward sloping in outside orientation and extends, the length of slope section is L2, the internal diameter of casing is D, the external diameter of first solenoid is D1, wherein L2, D and D1 satisfy one in the following relation at least: d1 is more than or equal to 0.92D, and L2 is more than or equal to 10 mm.

According to the compressor of the embodiment of the invention, the first coil and the second coil are arranged in the motor part, and the inner circumferential wall of the second coil is connected with the lower end surface of the second coil through the inclined section, wherein the length L2 of the inclined section, the inner diameter D of the shell and the outer diameter D1 of the first coil at least satisfy one of the following relations: d1 is more than or equal to 0.92D, and L2 is more than or equal to 10 mm. Therefore, the oil-gas separation efficiency in the compressor can be improved, the oil output of the compressor is reduced, the phenomenon that the refrigerating machine oil forms an oil film on the heat exchanger to influence the heat exchange performance of the heat exchanger is avoided, and meanwhile, the reliability of the compressor is improved.

According to some embodiments of the invention, the angled section is at an angle α from vertical such that 20 ≦ α ≦ 70.

Further, the difference △ D between the outer diameter D1 of the first coil and the inner diameter D of the shell is more than or equal to 2.5 mm.

According to some embodiments of the invention, the compressor further comprises an oil separator provided on the top wall of the rotor to rotate synchronously with the rotor, the oil separator being provided with a gas outlet opening towards the first drum.

Specifically, the oil separator is formed in a flat plate shape, is placed on a top balance block of the rotor, and is fixed to the rotor by a fixing member.

Drawings

FIG. 1 is a schematic view of a compressor according to an embodiment of the present invention;

FIG. 2 is a schematic view of a stator according to an embodiment of the invention

Fig. 3 is an operational principle diagram of a compressor according to an embodiment of the present invention;

FIG. 4 is a graph of oil discharge versus inclined section length L2 for a compressor according to an embodiment of the present invention;

fig. 5 is a graph showing the relationship between the oil discharge amount of the compressor and the ratio between the outer diameter D1 of the first wire packet and the inner diameter D of the shell according to the embodiment of the present invention.

Reference numerals:

a compressor 100;

a housing 1; an exhaust pipe 10; an intake pipe 11; a cylinder 20; an air inlet 201; a motor section 3;

a stator 30; a stator core 300; a coil winding 301; a first line pack 3011; a second line pack 3012;

the inclined segment 3012 a; a rotor 31; a weight 310; an oil separator 4; a gas outlet 40;

a liquid reservoir 5; an oil sump 6; and a refrigerator oil 7.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length," "upper," "lower," "vertical," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplicity in description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

A compressor 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 5. The compressor 100 may be a rotary compressor.

As shown in fig. 1 to 5, a compressor 100 according to an embodiment of the present invention includes: a housing 1, a compression mechanism portion, and a motor portion 3.

It is understood that the compressor 100 further includes an accumulator 5 for separating gas and liquid of the refrigerant and an oil sump 6 at a bottom of the compressor 100 for storing refrigerating machine oil 7.

Specifically, the casing 1 is provided with an exhaust pipe 10 and an intake pipe 11. The compression mechanism part is provided in the casing 1, and includes a cylinder 20 provided with an exhaust port and an intake port 201. The reservoir 5 is connected to an intake port 201 of the cylinder 20.

The motor unit 3 is provided in the casing 1 above the compression mechanism unit. As a result, the refrigerant discharged from the discharge port of the cylinder 20 is discharged to the motor unit 3. Meanwhile, when the compressor 100 is operated at a high speed, a portion of the refrigerating machine oil 7 is mixed with the gaseous refrigerant to form an oil-gas mixture, and the oil-gas mixture is discharged to the motor portion 3 through the exhaust port of the cylinder 20 and continuously collides with the motor portion 3.

The motor part 3 includes a stator 30 and a rotor 31, the stator 30 is fixed on the inner peripheral wall of the housing 1, the stator 30 includes a stator core 300 and a coil winding 301, a portion of the coil winding 301 located on the upper end surface of the stator 30 is a first coil 3011, and a portion of the coil winding 301 located on the lower end surface of the stator 30 is a second coil 3012. The inner peripheral wall of the second wire package 3012 is connected to the lower end face of the second wire package 3012 through an inclined section 3012a, and the inclined section 3012a extends in an outward direction in a downward inclined mode, so that the contact area of the oil-gas mixture and the second wire package 3012 is increased.

When the compressor 100 is operated at a high speed, the refrigerant gas of high temperature and high pressure is mixed with the refrigerating machine oil 7 to form an oil-gas mixture, and the mixture is discharged from the discharge port of the cylinder 20 to the motor portion 3. The oil-gas mixture discharged to the motor part 3 continuously impacts the second wire package 3012, so that the oil-gas mixture is separated from the oil-gas mixture, and the inner peripheral wall of the second wire package 3012 is connected with the lower end face of the second wire package 3012 through the inclined section 3012a extending downwards, so that the contact area between the oil-gas mixture and the second wire package 3012 is increased, the oil-gas separation efficiency of the second wire package 3012 is improved, and the oil output of the compressor 100 is reduced to a certain extent. The separated oil settles into the oil sump 6 and the unseparated oil-gas mixture will continue to flow radially along the flow path in the motor section 3. The circulation path includes: air holes in the rotor 31, gaps between the stator 30 and the rotor 31, gaps between the respective coils, cut edges of the stator 30, and the like. During the upward flow of the unseparated oil-gas mixture through the gap of the second coil 3012, the second coil 3012 also filters the oil-gas mixture, thereby further realizing the oil-gas separation of the oil-gas mixture.

The oil-gas mixture flowing to the first line drum 3011 continuously collides with the first line drum 3011, so that the oil-gas mixture is further subjected to oil-gas separation, and the separated oil is settled in an oil pool 6. The unseparated hydrocarbon mixture is further separated by the first coil 3011 filtering the hydrocarbon mixture as it passes through the gap of the first coil 3011. Through the oil-gas separation in the compressor 100, the oil output of the compressor 100 can be reduced, the heat exchange performance of the heat exchanger is prevented from being influenced by the oil film formed on the heat exchanger by the refrigerating machine oil 7, and meanwhile, the reliability of the compressor 100 is improved. (the arrows in FIG. 3 indicate the direction of flow of the oil-gas mixture)

As shown in FIG. 4, the inventor finds through experiments that when the length of the inclined section 3012a is L2 and L2 is more than or equal to 10mm, the contact area between the oil-gas mixture and the second line packet 3012 can be remarkably increased, so that the oil-gas separation efficiency of the oil-gas mixture at the second line packet 3012 is improved, and the oil output of the compressor 100 is reduced.

As shown in fig. 5, the inventor also found through experiments that when the inner diameter D of the shell 1 and the outer diameter D1 of the first string bag 3011 satisfy the following relationship: when D1 is more than or equal to 0.92D, the outer diameter of the first line packet 3011 is relatively large, the contact area of the oil-gas mixture and the first line packet 3011 and the filtering distance of the first line packet 3011 to the oil-gas mixture can be remarkably increased, so that the oil-gas separation efficiency of the oil-gas mixture at the first line packet 3011 is remarkably improved, and the oil output of the compressor 100 is reduced.

The inventors have found through further experiments that when the length L2 of the inclined section 3012a, the inner diameter D of the housing 1 and the outer diameter D1 of the first cable package 3011 satisfy the following relationship: when D1 is more than or equal to 0.92D and L2 is more than or equal to 10mm, the oil-gas separation effect of the compressor 100 is most obvious.

According to the compressor 100 of the embodiment of the present invention, by providing the first and

second packs

3011 and 3012 in the motor section 3, and connecting the inner circumferential wall of the second pack 3012 and the lower end surface of the second pack 3012 by the inclined section 3012a, the length L2 of the inclined section 3012a, the inner diameter D of the housing 1, and the outer diameter D1 of the first pack 3011 satisfy at least one of the following relations: d1 is more than or equal to 0.92D, and L2 is more than or equal to 10 mm. Therefore, the oil-gas separation efficiency in the compressor 100 can be improved, the oil output of the compressor 100 can be reduced, the heat exchange performance of the heat exchanger is prevented from being influenced by the oil film formed on the heat exchanger by the refrigerating machine oil 7, and the reliability of the compressor 100 is improved.

The inventor finds through experiments that when the included angle α between the inclined section 3012a and the vertical direction is between 20 degrees and 70 degrees, the contact area of the oil-gas mixture and the second ladle 3012 can be further increased, so that the impact and filtering effect of the oil-gas mixture and the second ladle 3012 is improved, and the oil-gas separation efficiency in the compressor 100 is remarkable.

The inventor also finds through experiments that when the difference △ D between the outer diameter D1 of the first line pack 3011 and the inner diameter D of the housing 1 is greater than or equal to 2.5mm, the electrical safety distance is ensured, safety problems such as short circuit of the motor part 3 can be avoided, and the safety and reliability of the motor part 3 can be ensured.

According to some embodiments of the invention, the compressor 100 further comprises an oil separator 4, the oil separator 4 being provided on the top wall of the rotor 31 to rotate synchronously with the rotor 31, the oil separator 4 being provided with a gas outlet 40 opening towards the first pack 3011. It can be seen that when the unseparated oil-gas mixture flows to the oil separator 4, partial oil-gas separation occurs inside the oil separator 4, and the separated oil flows down to sink into the oil sump 6. The unseparated oil-gas mixture is thrown onto the first linear packet 3011 along with the rotation of the oil separator 4, the oil-gas mixture collides with the first linear packet 3011, and the first linear packet 3011 filters the oil-gas mixture, so that the oil-gas separation efficiency in the compressor 100 is further improved, the oil output of the compressor 100 is reduced, the influence on the heat exchange performance of the heat exchanger due to the oil film formed on the heat exchanger by the refrigerating machine oil 7 is avoided, and the reliability of the compressor 100 is improved.

Specifically, the oil separator 4 is formed in a flat plate shape, the oil separator 4 is placed on the top balance weight 310 of the rotor 31, and the oil separator 4 is fixed to the rotor 31 by a fixing member. Therefore, the structure of the oil separator 4 is simple, the connection mode of the oil separator 4 and the rotor 31 is simple, and the manufacture is convenient. It is to be understood that the shape of the oil separator 4 is not limited thereto, and for example, the oil separator 4 may also be formed in a cylindrical shape or the like as long as the oil-gas separation effect is ensured, and the oil separator 4 effectively throws the unseparated oil-gas mixture onto the first package 3011 to ensure constant collision of the oil-gas mixture with the first package 3011.

A detailed description of the compressor 100 mechanism according to an embodiment of the present invention will be given below with reference to fig. 1 to 5. However, it should be noted that the following description is only exemplary, and it is obvious that a person skilled in the art after reading the following technical solutions of the present invention can combine, replace, modify the technical solutions or some technical features thereof, and this also falls into the protection scope of the present invention.

As shown in fig. 1 to 5, a compressor 100 according to an embodiment of the present invention includes: the compressor comprises a shell 1, a compression mechanism part, a motor part 3, an oil separator 4, a liquid reservoir 5 and an oil pool 6.

An exhaust pipe 10 and an intake pipe 11 are provided on the housing 1. The compression mechanism part is provided in the casing 1, and includes a cylinder 20 provided with an exhaust port and an intake port 201. The reservoir 5 is connected to an intake port 201 of the cylinder 20.

The motor part 3 is arranged in the shell 1 and located above the compression mechanism part, the motor part 3 comprises a stator 30 and a rotor 31, the stator 30 is fixed on the inner peripheral wall of the shell 1, the stator 30 comprises a stator core 300 and a coil winding 301, the part, located on the upper end face of the stator 30, of the coil winding 301 is a first coil 3011, and the part, located on the lower end face of the stator 30, of the coil winding 301 is a second coil 3012.

The inner peripheral wall of the second thread package 3012 is connected with the lower end face of the second thread package 3012 through an inclined section 3012a, the inclined section 3012a extends in an outward direction in a downward inclined mode, the length L2 of the inclined section 3012a is larger than or equal to 10mm, and the included angle α between the inclined section 3012a and the vertical direction meets the following relation that 20 degrees is larger than or equal to α degrees and smaller than or equal to 70 degrees.

The inner diameter D of the shell 1 and the outer diameter D1 of the first line pack 3011 meet that D1 is more than or equal to 0.92D, and the difference △ D between the outer diameter D1 of the first line pack 3011 and the inner diameter D of the shell 1 is more than or equal to 2.5 mm.

The oil separator 4 is formed in a flat plate shape, the oil separator 4 is fixed to the top of the rotor 31 by a fixing member and the oil separator 4 is placed on the top balance weight 310 to rotate in synchronization with the rotor 31, and the oil separator 4 is provided with a gas outlet 40 that opens toward the first pack 3011. An oil sump 6 is located at the bottom of the compressor 100 to store the refrigerating machine oil 7.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A compressor, comprising:

the air conditioner comprises a shell, wherein an exhaust pipe and an air inlet pipe are arranged on the shell;

a compression mechanism part arranged in the housing, the compression mechanism part including a cylinder provided with an exhaust port and an intake port;

motor portion, motor portion establishes in the casing and be located the top of compressing mechanism portion, motor portion includes stator and rotor, the stator is fixed on the internal perisporium of casing, the stator includes stator core and coil winding, coil winding is located the part of the up end of stator is first solenoid, coil winding is located the part of the lower terminal surface of stator is the second solenoid, the internal perisporium of second solenoid with link to each other through the slope section between the lower terminal surface of second solenoid, the slope section extends in the downward sloping in outside direction, the length of slope section is L2, the internal diameter of casing is D, the external diameter of first solenoid is D1, wherein L2, D and D1 satisfy following relation: d1 is more than or equal to 0.92D; or D1 is more than or equal to 0.92D and L2 is more than or equal to 10mm,

the included angle between the inclined section and the vertical direction is α, and the following relation is satisfied, wherein the included angle is more than or equal to 20 degrees and less than or equal to α degrees and less than or equal to 70 degrees,

the difference △ D between the outer diameter D1 of the first coil and the inner diameter D of the shell is more than or equal to 2.5 mm.

2. The compressor of claim 1, further comprising an oil separator provided on a top wall of the rotor to rotate synchronously with the rotor, the oil separator being provided with a gas outlet opening to the first packet.

3. The compressor according to claim 2, wherein the oil separator is formed in a flat plate shape, the oil separator is placed on a top balance weight of the rotor, and the oil separator is fixed to the rotor by a fixing member.