CN219932450U

CN219932450U - Compressor and refrigeration equipment

Info

Publication number: CN219932450U
Application number: CN202321134979.2U
Authority: CN
Inventors: 杨豪
Original assignee: Guangdong Meizhi Compressor Co Ltd
Current assignee: Guangdong Meizhi Compressor Co Ltd
Priority date: 2023-05-11
Filing date: 2023-05-11
Publication date: 2023-10-31
Anticipated expiration: 2033-05-11

Abstract

The technical scheme of the utility model discloses a compressor and refrigeration equipment, wherein the compressor comprises a shell, a partition piece, a pump body, an air suction pipe and a filter assembly shell, wherein the shell is provided with an air suction port; the separator is arranged in the shell to separate the interior of the shell into a high-pressure cavity and a liquid storage cavity; the pump body is arranged in the high-pressure cavity, and the liquid storage cavity is communicated with the pump body through an air inlet flow channel arranged in the shell; the air suction pipe is arranged outside the shell and is communicated with the liquid storage cavity through the air suction port. The technical scheme of the utility model is that the filter assembly is arranged at the air suction port; and/or is arranged in the air suction pipe and positioned outside the air suction port; and/or locate on the air inlet channel, avoided the filter component pump body to take place to interfere for the pump body and separator wholly can move down, and the volume of stock solution chamber obtains reducing, thereby has reduced the height of casing, has reduced the height of compressor complete machine.

Description

Compressor and refrigeration equipment

Technical Field

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

Background

The compressor is a driven fluid machine that lifts low pressure gas to high pressure gas and is the heart of the refrigeration system. The low-temperature low-pressure refrigerant gas is sucked from the air suction pipe, the motor is operated to drive the piston to compress the low-temperature low-pressure refrigerant gas, and then the high-temperature high-pressure refrigerant gas is discharged to the air discharge pipe to provide power for refrigeration cycle.

The existing compressor is generally provided with a side liquid storage device, has large radial size and needs larger installation space. In order to reduce the radial size of the compressors, some compressors are provided with a liquid storage cavity below the pump body assembly, however, an air inlet pipe communicated with the liquid storage cavity is provided with an extending section extending into the liquid storage cavity, a filter screen is generally arranged on the extending section, and the filter screen arranged on the extending section interferes with the pump body assembly, so that the pump body assembly cannot move downwards as a whole, and the height of the whole compressor is increased.

Disclosure of Invention

The utility model mainly aims to provide a compressor, which aims to reduce the height of the whole compressor.

The technical scheme of the utility model provides a compressor, which comprises the following components:

a shell provided with an air suction port;

the separation piece is arranged in the shell to separate the interior of the shell into a high-pressure cavity and a liquid storage cavity;

the pump body is arranged in the high-pressure cavity, and the liquid storage cavity is communicated with the pump body through an air inlet flow passage arranged in the shell;

the air suction pipe is arranged outside the shell and is communicated with the liquid storage cavity through the air suction port; and

a filter assembly;

the filter component is arranged at the air suction port; and/or

The filter component is arranged in the air suction pipe and is positioned outside the air suction port; and/or

The filter assembly is arranged on the air inlet flow passage.

In one embodiment, the filter assembly includes a cuff and a filter screen, the cuff being looped around an edge of the filter screen.

In one embodiment, the surface area of the filter screen is S ₁ The area of the section of the air suction pipe which is cut by a plane perpendicular to the air inlet direction is S ₂ ，S ₁ And S is equal to ₂ The method meets the following conditions: s is S ₁ Not greater than 5.76S ₂ And is not less than S ₂ 。

In one embodiment, the air suction pipe comprises a first pipe section and a second pipe section, wherein the second pipe section is arranged between the shell and the first pipe section and is connected with the shell and the first pipe section; the diameter of the first pipe section is larger than that of the second pipe section, a limiting surface is formed at the joint of the first pipe section and the second pipe section, and the hoop is arranged on the limiting surface.

In one embodiment, the air suction pipe comprises a first pipe section and a second pipe section, wherein the second pipe section is arranged between the shell and the first pipe section and is connected with the shell and the first pipe section; the diameter of the first pipe section is smaller than that of the second pipe section, and the filter assembly is arranged on the second pipe section.

In one embodiment, the air suction pipe comprises a first pipe section and a second pipe section, wherein the second pipe section is arranged between the shell and the first pipe section and is connected with the shell and the first pipe section; the diameter of the first pipe section is consistent with that of the second pipe section, a limiting piece is arranged on the inner wall of the first pipe section or the inner wall of the second pipe section, and the filtering component is connected with the limiting piece.

In one embodiment, the filter assembly is disposed at an end of the suction pipe remote from the suction port.

In an embodiment, a straight line passing through the midpoint of the filter screen and perpendicular to the tangent line of the edge of the filter screen forms an included angle with the center line of the air suction pipe, and the included angle is θ, where θ satisfies: θ is not greater than 90 ° and not less than 10 °.

In an embodiment, the filter screen is in a net bag shape or a cone shape, and an opening of the filter screen faces the air suction port.

In one embodiment, the filter assembly is welded to the suction pipe.

In an embodiment, the partition comprises a lower bearing connected to the pump body, the lower bearing providing an air intake passage forming at least part of the air intake passage.

In one embodiment, the surface area of the filter screen is S ₁ The area of the section of the air inlet passage at the plane perpendicular to the air inlet direction is S ₃ ，S ₁ And S is equal to ₃ The method meets the following conditions: s is S ₁ Not greater than 5S ₃ And is not less than S ₃ 。

In an embodiment, the compressor further comprises an oil return pipe, wherein the oil return pipe is arranged in the shell, one end of the oil return pipe is communicated with the liquid storage cavity, and the other end of the oil return pipe is communicated with the pump body; the filter screen is provided with an avoidance hole for the oil return pipe to pass through.

The present utility model also provides a refrigeration appliance including a compressor, the compressor including:

a shell provided with an air suction port;

a filter assembly;

the filter component is arranged at the air suction port; and/or

The filter assembly is arranged on the air inlet flow passage.

According to the technical scheme, the compressor is provided, the inside of the shell is divided into the high-pressure cavity and the liquid storage cavity by the partition piece, the air suction pipe is communicated with the liquid storage cavity through the air suction port, and the air inlet channel for the refrigerant to flow into the pump body is arranged in the shell. The filter assembly is arranged at the air suction port; and/or is arranged in the air suction pipe and positioned outside the air suction port; and/or locate on the air inlet channel, avoided filter element to interfere with pump body, make pump body and separation piece wholly can move down, the volume of the liquid storage cavity is reduced, thus has reduced the height of the body, has reduced the height of the compressor complete machine.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

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

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of an air suction pipe according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of an air suction pipe according to another embodiment of the present utility model;

fig. 5 is a schematic view showing the structure of an air suction pipe according to still another embodiment of the present utility model;

FIG. 6 is a schematic view of an air suction pipe according to still another embodiment of the present utility model;

FIG. 7 is a schematic diagram of a filter assembly according to an embodiment of the utility model;

FIG. 8 is a schematic view of a filter assembly according to another embodiment of the present utility model;

FIG. 9 is a schematic view of a filter assembly according to yet another embodiment of the present utility model;

fig. 10 is a schematic structural view of a filter assembly according to still another embodiment of the present utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				10	Compressor	110	High pressure chamber
100	Shell body	120	Liquid storage cavity
				200	Pump body	130	Suction port
300	Filtering assembly	210	Air inlet
				400	Air suction pipe	310	Ferrule
500	Lower bearing	320	Filter screen
				600	Oil return pipe	321	Avoidance hole
700	Motor rotor	410	First pipe section
				800	Motor stator	420	Second pipe section
900	Upper bearing	430	Third pipe section
				510	Air inlet channel

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1, the present utility model provides a compressor 10, which includes a housing 100, a partition, a pump body 200, an air suction pipe 400, and a filter assembly 300; the housing 100 is provided with an air suction port 130; the partition is disposed in the housing 100 to divide the interior of the housing 100 into a high-pressure chamber 110 and a liquid storage chamber 120; the pump body 200 is arranged in the high-pressure cavity 110, and the liquid storage cavity 120 is communicated with the pump body 200 through an air inlet flow passage arranged in the shell 100; the air suction pipe 400 is arranged outside the shell 100, and the air suction pipe 400 is communicated with the liquid storage cavity 120 through the air suction port 130; the filter assembly 300 is provided at the suction port 130; and/or the filter assembly 300 is provided in the suction pipe 400 and outside the suction port 130; and/or the filter assembly 300 is provided in the intake runner.

Specifically, a compressor 10 includes a housing 100, a partition, a pump body 200, an intake pipe 400, and a filter assembly 300. The housing 100 is substantially cylindrical, and the housing 100 includes a top cover, a bottom cover, and a housing body, a top end of the housing body being connected to the top cover, and a bottom end of the housing body being connected to the bottom cover. The shell body, the top cover and the bottom cover are connected together through welding, and the shell 100 can also be integrally formed. The partition is provided inside the housing 100 to divide the interior of the housing 100 into a high-pressure chamber 110 and a liquid storage chamber 120, and the pump body 200 is provided in the high-pressure chamber 110. An air inlet flow passage is formed in the housing 100, the air inlet flow passage is communicated with the liquid storage cavity 120 and the pump body 200, and refrigerant in the liquid storage cavity 120 can enter the pump body 200 from the liquid storage cavity 120 through the air inlet flow passage for compression. The housing 100 is provided with an air inlet 130, and the air inlet 130 communicates with the liquid storage chamber 120. The suction pipe 400 is provided outside the housing 100, one end of the suction pipe 400 is connected to the refrigerating system, and the other end is connected to the liquid storage chamber 120 through the suction pipe 400, so as to introduce the refrigerant (mixture of gaseous refrigerant, liquid refrigerant and lubricating oil) in the refrigerating system into the liquid storage chamber 120. After the refrigerant enters the liquid storage cavity 120, the gaseous refrigerant and the lubricating oil are separated, the separated gaseous refrigerant reenters the pump body 200 through the air inlet flow channel, and the separated lubricating oil is collected at the bottom of the liquid storage cavity 120 under the action of gravity. It should be noted that the gaseous refrigerant is to be understood in a broad sense, and may be understood as, for example, a relatively pure gaseous refrigerant, or may be a gaseous refrigerant containing little oil. Lubricating oil is also to be understood as being a broad connection, for example as being a relatively pure lubricating oil, as well as a lubricating oil in which a very small amount of gaseous refrigerant is dissolved.

Since the refrigerant introduced into the compressor 10 from the refrigerating system may contain impurities such as iron filings, the compressor 10 needs to have a filter assembly 300 for filtering the impurities possibly contained in the refrigerant introduced into the accumulator 120 from the refrigerating system, preventing the impurities from entering the pump body 200 of the compressor 10. However, the air inlet pipe communicated with the liquid storage cavity 120 is provided with an extending section extending into the liquid storage cavity 120, the filter screen 320 is generally arranged at the extending section, and the filter screen 320 arranged at the extending section interferes with the pump body 200 assembly, so that the whole pump body 200 assembly cannot move downwards, and the height of the whole compressor is increased.

In one embodiment, the filter assembly 300 is disposed in the suction port 130. The filter assembly 300 is in a sheet shape and is disposed at the suction port 130, and the edge of the filter assembly 300 is connected to the inner wall of the suction port 130 to filter impurities possibly contained in the refrigerant flowing from the refrigeration system into the liquid storage chamber 120 through the suction pipe 400, thereby preventing the impurities from entering the pump body 200 of the compressor 10. Because the filter assembly 300 is arranged at the air suction port 130, interference of the pump body 200 of the filter assembly 300 is avoided, the pump body 200 and the partition member can move downwards as a whole, and the volume of the liquid storage cavity 120 is reduced, so that the height of the shell 100 is reduced, and the height of the whole compressor 10 is reduced.

In another embodiment, the filter assembly 300 is disposed in the air suction pipe 400 and outside the air suction port 130. The filter assembly 300 is not arranged at the position, close to the air suction port 130, in the liquid storage cavity 120, the filter assembly 300 cannot interfere with the pump body 200, so that the pump body 200 and the partition piece can move downwards integrally, the volume of the liquid storage cavity 120 is reduced, the height of the shell 100 is reduced, and the height of the whole compressor 10 is reduced. The filter assembly 300 disposed in the suction pipe 400 may have a sheet shape or a net shape. Impurities from the refrigerant system with the refrigerant are filtered by the filter assembly 300 in the suction pipe 400, so that impurities in the refrigerant entering the liquid storage chamber 120 are greatly reduced.

In yet another embodiment, the filter assembly 300 is provided in the intake runner. The filter assembly 300 disposed on the intake runner may be in the shape of a sheet or a net. The refrigerant in the liquid storage cavity 120 enters the pump body 200 through the air inlet flow channel, and the filter assembly 300 is arranged in the air inlet flow channel, so that impurities in the refrigerant can be filtered and remained in the liquid storage cavity 120, and the impurities are prevented from entering the pump body 200 together with the refrigerant. The filter assembly 300 is disposed in the intake runner, and does not interfere with the pump body 200, so that the pump body 200 and the partition member can move downward as a whole, and the volume of the liquid storage chamber 120 is reduced, thereby reducing the height of the housing 100 and the height of the compressor 10.

In other embodiments, the filter assembly 300 may alternatively be disposed in the suction port 130, the suction pipe 400 outside the suction port 130, or on the intake runner; alternatively, the air intake pipe may be provided in the air intake port 130, the air intake pipe 400 located outside the air intake port 130, or on the air intake passage; the filter assembly 300 may be provided in the suction port 130, the suction pipe 400 located outside the suction port 130, and the intake runner. The compressor 10 is provided with a plurality of filter assemblies 300, which can greatly enhance the filtering effect and prevent impurities from entering the pump body 200 along with the refrigerant.

In one embodiment, the filter assembly 300 includes a ferrule 310 and a filter screen 320, the ferrule 310 being looped around an edge of the filter screen 320.

Referring to fig. 7 to 10, the filter assembly 300 includes a ferrule 310 and a filter screen 320, wherein the ferrule 310 is used to be connected with an inner wall of the suction pipe 400, or used to be connected with an inner wall of the suction port 130, or used to fix the filter screen 320 on the intake runner. The thickness of the cuff 310 is greater than the thickness of the filter screen 320 to further facilitate installation of the filter assembly 300. When the filter 320 is sheet-shaped, the cuff 310 is looped around the edge of the filter 320, so that the filter assembly 300 is also sheet-shaped as a whole. When the filter screen 320 is in a net shape, the hoop 310 is arranged at the opening of the filter screen 320 and is connected to the edge of the opening of the filter screen 320, so that the whole filter assembly 300 is also in a net shape.

In one embodiment, the surface area of the filter 320 is S ₁ The area of the suction pipe 400 in a cross section taken by a plane perpendicular to the air intake direction thereof is S ₂ ，S ₁ And S is equal to ₂ The method meets the following conditions: s is S ₁ Not greater than 5.76S ₂ And is not less than S ₂ 。

When the filter 320 is in a disc shape, the surface area of the filter 320 refers to the area of the edge of the filter 320; when the filter 320 is in a square sheet shape, the surface area of the filter 320 refers to the product of the length and the width of the edge of the filter 320; when the filter screen 320 is tapered, the surface area of the filter screen 320 refers to the area of the tapered surface of the filter screen 320; when the filter 320 is hemispherical, the surface area of the filter 320 refers to the area of the sphere of the filter 320. S is S ₁ And S is equal to ₂ The method meets the following conditions: s is S ₁ Not greater than 5.76S ₂ And is not less than S ₂ . When S is ₁ Equal to S ₂ When the filter 320 is in a sheet shape, the filter 320 in a sheet shape is provided in the suction port 130 or the suction pipe 400 located outside the suction port 130. When S is ₁ Less than S ₂ In this case, the filter 320 cannot completely cover the suction port 130 or the suction pipe 400The inner walls have a spacing and the filtering action of the filter screen 320 fails; or the cuff 310 is too thick, blocking the refrigerant from the suction tube 400 from entering the reservoir 120, reducing the efficiency of the refrigerant from the suction tube 400 into the reservoir 120. When S is ₁ Greater than 5.76S ₂ When the filter screen 320 is in a net shape or a cone shape, the length of the filter screen 320 is increased due to the constant diameter of the air suction pipe 400.

In one embodiment, the suction pipe 400 includes a first pipe segment 410 and a second pipe segment 420, the second pipe segment 420 being disposed between the housing 100 and the first pipe segment 410 and connecting the housing 100 and the first pipe segment 410; the diameter of the first pipe section 410 is larger than that of the second pipe section 420, a limiting surface is formed at the joint of the first pipe section 410 and the second pipe section 420, and the hoop 310 is arranged on the limiting surface.

Referring to fig. 4, the suction duct 400 includes a first duct section 410 and a second duct section 420, the second duct section 420 is disposed between the housing 100 and the first duct section 410, and connects the housing 100 and the first duct section 410, and the second duct section 420 communicates with the suction port 130. The diameter of the first pipe section 410 is larger than that of the second pipe section 420, and a limiting surface facing the first pipe section 410 is formed at the joint of the first pipe section 410 and the second pipe section 420. The limiting surface may be a plane perpendicular to the air intake direction of the air intake pipe 400 or a curved surface having a reduced shape in the air intake direction of the air intake pipe 400. The collar 310 is provided on a stop surface to facilitate installation of the filter assembly 300. The filter screen 320 may be disposed in the first pipe section 410, and the opening of the filter screen 320 faces the second pipe section 420, so that the surface area of the filter screen 320 disposed in the first pipe section 410 is larger and the filtering effect is better because the diameter of the first pipe section 410 is larger than that of the second pipe section 420. The filter screen 320 may also be disposed within the second tube segment 420, with the opening of the filter screen 320 facing the first tube segment 410.

In one embodiment, the suction pipe 400 includes a first pipe segment 410 and a second pipe segment 420, the second pipe segment 420 being disposed between the housing 100 and the first pipe segment 410 and connecting the housing 100 and the first pipe segment 410; the diameter of the first tube segment 410 is smaller than the diameter of the second tube segment 420, and the filter assembly 300 is disposed in the second tube segment 420.

Referring to fig. 3, the air suction pipe 400 includes a first pipe section 410 and a second pipe section 420, the second pipe section 420 is disposed between the housing 100 and the first pipe section 410, and connects the housing 100 and the first pipe section 410, and the second pipe section 420 is communicated with the air suction port 130. The diameter of the first pipe section 410 is smaller than that of the second pipe section 420, the filter assembly 300 is arranged in the second pipe section 420, the surface area of the filter screen 320 arranged in the second pipe section 420 is larger, and the filtering effect is better. The filter screen 320 may be open to the first tube segment 410 or the second tube segment 420.

In one embodiment, the suction pipe 400 includes a first pipe segment 410 and a second pipe segment 420, the second pipe segment 420 being disposed between the housing 100 and the first pipe segment 410 and connecting the housing 100 and the first pipe segment 410; the diameter of the first pipe segment 410 is identical to the diameter of the second pipe segment 420, and a limiting member is arranged on the inner wall of the first pipe segment 410 or the second pipe segment 420, and the filter assembly 300 is connected with the limiting member.

Referring to fig. 5 and 6, the suction duct 400 includes a first duct section 410 and a second duct section 420, the second duct section 420 is disposed between the housing 100 and the first duct section 410, and connects the housing 100 and the first duct section 410, and the second duct section 420 communicates with the suction port 130. The diameter of the first tube segment 410 may be equal to the diameter of the second tube segment 420, and both may be subject to errors during actual manufacturing operations. The filter assembly 300 may be disposed on the first tube segment 410 or the second tube segment 420. The inner wall of the first pipe segment 410 or the second pipe segment 420 is provided with a limiting member, which may be a bump connected to the inner wall of the first pipe segment 410 or the second pipe segment 420, and the filter assembly 300 is connected to the bump. The air suction pipe 400 may be concave inward, so that the inner wall of the air suction pipe 400 protrudes inward at the concave position to form a limiting member. The filter screen 320 may be open to the first tube segment 410 or the second tube segment 420.

In one embodiment, the filter assembly 300 is disposed at an end of the suction pipe 400 remote from the suction port (130).

Referring to fig. 4, the filter assembly 300 is disposed at an end of the suction pipe 400 remote from the suction port (130). When the diameter of the first pipe segment 410 is greater than that of the second pipe segment 420, the ferrule 310 is disposed on the limiting surface formed by the first pipe segment 410 and the second pipe segment 420, and the filter screen 320 is disposed in the first pipe segment 410. The first tube segment 410 is of a smaller length and the filter assembly 300 is located away from the suction port (130).

When the diameter of the first pipe segment 410 is identical to the diameter of the second pipe segment 420, the filter assembly 300 is disposed in the first pipe segment 410, and is disposed at an end of the first pipe segment 410 away from the suction port (130). The inner wall of the first tube segment 410 is provided with a limiting member, and the filter assembly 300 is connected to the limiting member. Or a limiting member is formed between the first pipe section 410 and the second pipe section 420 at one end of the suction pipe 400, which is remote from the suction port (130), and the filter assembly 300 is disposed in the first pipe section 410 and is connected to the limiting member.

In an embodiment, a straight line passing through the midpoint of the filter 320 and perpendicular to the tangent line of the edge of the filter 320 forms an included angle with the center line of the air suction pipe 400, where the included angle is θ, and θ satisfies: θ is not greater than 90 ° and not less than 10 °.

Referring to fig. 7 and 8, when θ is equal to 90 °, the filter 320 is in a sheet shape, and the filter assembly 300 is disposed at the air inlet 130, or in the air suction pipe 400 outside the air inlet 130, or on the air intake passage. When θ is greater than or equal to 10 ° and less than 90 °, the filter screen 320 is in a net shape or a cone shape, and the filter assembly 300 is disposed in the air suction pipe 400 located outside the air suction port 130 or on the air intake runner. When θ is smaller than 10 °, the length of the filter 320 is too long, or the opening of the filter 320 is too small.

In one embodiment, the filter 320 is in the shape of a net bag or cone, and the opening of the filter 320 faces the suction port 130.

Referring to fig. 3 to 6, the filter screen 320 is in a shape of a net bag or a cone, and the outer surface of the filter screen 320 may be a conical surface, a spherical surface, a circumferential surface or a combination thereof. When the opening of the filter screen 320 is away from the suction port 130, foreign substances are collected at a taper angle of the inside of the filter screen 320 along the air intake direction of the suction pipe 400, reducing the effective filtering area of the filter screen 320, and reducing the filtering effect. When the opening of the filter screen 320 faces the suction port 130, foreign substances remain between the filter screen 320 and the inner wall of the suction pipe 400 along the air intake direction of the suction pipe 400 and are adjacent to the cuff 310. The space formed between the filter screen 320 and the inner wall of the suction pipe 400 near the cuff 310 is larger than the space at the cone angle of the filter screen 320, and the area of the impurities attached to the filter screen 320 is smaller. Therefore, the opening of the filter 320 faces the suction port 130, and the filtering effect is better than that of the opening of the filter 320 facing away from the suction port 130.

In one embodiment, filter assembly 300 is welded to suction tube 400.

The filter assembly 300 is welded on the inner wall of the air suction pipe 400 through the hoop 310, so that the filter assembly 300 is fixedly connected with the air suction pipe 400, and the filter assembly 300 is prevented from moving in the air suction pipe 400 to influence the stability of the compressor 10; at the same time, the filter assembly 300 can be prevented from shaking in the air suction pipe 400, so that the filter assembly 300 has a gap with the inner wall of the air suction pipe 400, and the filter assembly 300 fails.

In one embodiment, the partition includes a lower bearing 500, the lower bearing 500 being connected to the pump body 200, the lower bearing 500 being provided with an intake passage 510, the intake passage 510 forming at least part of the intake runner.

Referring to fig. 1 and 2, the partition member includes a lower bearing 500, the lower bearing 500 is disposed on one side of the pump body 200 near the liquid storage cavity 120, an outer wall of the lower bearing 500 is fixedly connected with an inner wall of the housing 100, and one side of the lower bearing 500 far from the liquid storage cavity 120 is connected with the pump body 200 to support the pump body 200. The pump body 200 has an intake port 210 for the refrigerant to enter the interior of the pump body 200, the intake port 210 forming at least part of an intake runner. The lower bearing 500 is provided with an air inlet channel 510, the air inlet channel 510 penetrates through two opposite sides of the lower bearing 500 and is communicated with the air inlet 210 and the liquid storage cavity 120 of the pump body 200, and the air inlet channel 510 forms at least part of an air inlet flow channel. Refrigerant in the reservoir 120 may enter the interior of the pump body 200 from the intake port 210 via the intake passage 510. The air intake passage 510 may extend in the axial direction of the housing 100, may be inclined toward the inside of the housing 100 in the direction from the lower bearing 500 to the pump body 200, or may extend in a meandering manner from the lower surface of the lower bearing 500 to the upper surface of the lower bearing 500. The ports of the air intake channel 510 may be circular, polygonal, or arcuate.

The filter assembly 300 may be disposed at the air inlet 210 of the pump body 200, may be disposed in the air inlet channel 510 of the lower bearing 500, and may be disposed at a side of the lower bearing 500 away from the pump body 200, and may cover a port of the air inlet channel 510.

The compressor 10 further includes an upper bearing 900, an oil cover, a crankshaft, and an oil pump, the oil cover being provided at a side of the lower bearing 500 remote from the pump body 200 and connecting the lower bearing 500 to form an oil reservoir. The lubricating oil in the pump body 200 assembly drops and is stored in the oil storage tank, and meanwhile, the lubricating oil in the oil storage tank can be supplied to other parts, so that friction and abrasion of each part are reduced. A crankshaft is a mechanical element for converting linear motion into rotary motion and is generally composed of an elongated metal shaft and several eccentric wheels. The pump body 200 is disposed between the upper bearing 900 and the lower bearing 500, and connects the upper bearing 900 and the lower bearing 500. The crankshaft sequentially passes through and connects the pump body 200, the upper bearing 900 and the lower bearing 500, and the crankshaft is used for driving a rotary piston in the pump body 200 and driving the rotary piston to rotate so as to compress the refrigerant. The upper bearing 900 and the lower bearing 500 support the crankshaft. The crankshaft is connected with an oil pump near one end of the liquid storage cavity 120, the oil pump is a mechanical device for conveying lubricating oil or other fluids, and the oil pump is arranged in the oil storage tank and is used for spraying the lubricating oil in the oil storage tank to various parts of the compressor 10 so as to reduce friction and abrasion of various parts and reduce noise and energy loss.

The compressor 10 further includes a motor stator 800 and a motor rotor 700, wherein the motor rotor 700 is sleeved at one end of the crankshaft far away from the oil pump, and the motor rotor 700 is tightly held by cold pressing or hot sleeving and is provided with the crankshaft. The motor stator 800 is disposed at the outer circumference of the motor rotor 700 and fixedly connected to the inner wall of the housing 100. The motor rotor 700 rotates with respect to the motor stator 800 to transmit a rotational force to the rotary piston of the pump body 200 to compress the refrigerant.

In one embodiment, the surface area of the filter 320 is S ₁ The area of the intake passage 510 in a cross section taken by a plane perpendicular to the intake direction thereof is S ₃ ，S ₁ And S is equal to ₃ The method meets the following conditions: s is S ₁ Not greater than 5S ₃ And is not less than S ₃ 。

When S is ₁ Equal to S ₃ When the filter 320 is in a sheet shape, the filter 320 in a sheet shape is disposed in the air inlet 210 or the air inlet passage 510, or in the muffler. When S is ₁ Less than S ₃ When in use, the filter screen 320 is positioned between the inner wall of the air inlet channel 510With spacing, the filtering action of filter screen 320 fails; or the cuff 310 is too thick, blocking the refrigerant from the reservoir 120 from entering the pump body 200, reducing the efficiency of the refrigerant from the reservoir 120 into the pump body 200. When S is ₁ Greater than 5S ₃ When the filter screen 320 is in a net shape or a cone shape, the length of the filter screen 320 is increased due to the constant diameter of the air suction pipe 400. When S is ₁ Greater than S ₃ And is less than 5S ₃ When the filter screen 320 is in a net shape or a cone shape, the filter screen 320 is arranged in the air inlet channel 510 or on one side of the lower bearing 500 away from the pump body 200.

In one embodiment, the compressor 10 further includes an oil return pipe 600, where the oil return pipe 600 is disposed in the housing 100, and one end of the oil return pipe is connected to the liquid storage cavity 120, and the other end of the oil return pipe is connected to the pump body 200; the filter screen 320 is provided with a relief hole 321 through which the oil return pipe 600 passes.

Referring to fig. 2, 9 and 10, an oil return pipe 600 is disposed in the housing 100. The oil return pipe 600 has a first end and a second end, the first end is communicated with the liquid storage cavity 120, and the second end is communicated with the pump body 200. The lubricating oil at the bottom of the liquid storage cavity 120 can flow into the oil return pipe 600 from the first end and enter the pump body 200 from the second end, the second end of the oil return pipe 600 penetrates through the air inlet channel 510, and the port of the second end can be located in the air inlet channel 510 or penetrate out of the air inlet channel 510. The second end is in communication with the inlet port 210, and when the compressor 10 is in operation, the pressure near the inlet port 210 is lower, while the pressure in the reservoir 120 is higher than the inlet port 210, and the refrigerant near the inlet port 210 flows, returning the lubricant oil at the bottom of the reservoir 120 to the inside of the pump body 200 by the pressure difference and pulsation between the reservoir 120 and the inlet port 210. Thereby realizing that the lubricating oil deposited at the bottom of the liquid storage cavity 120 is returned into the pump body 200, and the lubricating oil is conveyed to other parts of the compressor 10 through the oil path channels in the crankshaft and the oil pump, so that the friction force between the parts in the compressor 10 is reduced, the movement between the parts is smoother, and the abrasion of the parts is reduced. Thereby improving the reliability of the compressor 10 while reducing the likelihood of failure of the compressor 10. The filter screen 320 is provided with a relief hole 321 through which the oil return pipe 600 passes.

The present utility model also proposes a refrigeration device, which includes a compressor 10, where the specific structure of the compressor 10 refers to the above embodiment, and since the refrigeration device adopts all the technical solutions of all the above embodiments, at least has all the beneficial effects brought by the technical solutions of the above embodiments, and will not be described in detail herein.

The refrigerating apparatus may be classified into a compression refrigerating apparatus, an absorption refrigerating apparatus, a vapor injection refrigerating apparatus, a heat pump refrigerating apparatus, an electric heating refrigerating apparatus, and the like. The refrigeration equipment mainly comprises a compressor 10, an expansion valve, an evaporator, a condenser, accessories and pipelines. Such as a refrigerator, an air conditioner, etc.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structural modifications made by the present description and accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. A compressor, comprising:

a shell provided with an air suction port;

a filter assembly;

the filter component is arranged at the air suction port; and/or

The filter assembly is arranged on the air inlet flow passage.

2. The compressor of claim 1, wherein the filter assembly includes a cuff and a filter screen, the cuff being looped around an edge of the filter screen.

3. The compressor of claim 2, wherein the filter mesh has a surface area S ₁ The area of the section of the air suction pipe which is cut by a plane perpendicular to the air inlet direction is S ₂ ，S ₁ And S is equal to ₂ The method meets the following conditions: s is S ₁ Not greater than 5.76S ₂ And is not less than S ₂ 。

4. The compressor of claim 3, wherein the suction pipe includes a first pipe section and a second pipe section, the second pipe section being disposed between and connecting the housing and the first pipe section; the diameter of the first pipe section is larger than that of the second pipe section, a limiting surface is formed at the joint of the first pipe section and the second pipe section, and the hoop is arranged on the limiting surface.

5. The compressor of claim 3, wherein the suction pipe includes a first pipe section and a second pipe section, the second pipe section being disposed between and connecting the housing and the first pipe section; the diameter of the first pipe section is smaller than that of the second pipe section, and the filter assembly is arranged on the second pipe section.

6. The compressor of claim 3, wherein the suction pipe includes a first pipe section and a second pipe section, the second pipe section being disposed between and connecting the housing and the first pipe section; the diameter of the first pipe section is consistent with that of the second pipe section, a limiting piece is arranged on the inner wall of the first pipe section or the inner wall of the second pipe section, and the filtering component is connected with the limiting piece.

7. A compressor as claimed in claim 3 wherein said filter assembly is provided at an end of said suction duct remote from said suction opening.

8. The compressor of claim 2, wherein a straight line passing through a midpoint of the filter screen and perpendicular to a tangent line of an edge of the filter screen forms an angle with a center line of the suction pipe, the angle being θ, θ satisfying: θ is not greater than 90 ° and not less than 10 °.

9. A compressor according to any one of claims 2 to 8, wherein the filter mesh is in the form of a mesh or cone, the opening of the filter mesh being directed towards the suction port.

10. The compressor of claim 9 wherein said filter assembly is welded to said suction tube.

11. The compressor of claim 2, wherein the partition includes a lower bearing connected to the pump body, the lower bearing defining an intake passage, the intake passage forming at least a portion of the intake runner.

12. The compressor of claim 11, wherein the filter mesh has a surface area S ₁ The area of the section of the air inlet passage at the plane perpendicular to the air inlet direction is S ₃ ，S ₁ And S is equal to ₃ The method meets the following conditions: s is S ₁ Not greater than 5S ₃ And is not less than S ₃ 。

13. The compressor of claim 11, further comprising an oil return tube disposed within the housing, one end communicating with the reservoir and the other end communicating with the pump body; the filter screen is provided with an avoidance hole for the oil return pipe to pass through.

14. A refrigeration device comprising a compressor as claimed in any one of claims 1 to 13.