Compressor, air conditioner and vehicle having the same

Abstract

This application provides a compressor, an air conditioner, and a vehicle equipped therewith, comprising a housing, a compression structure, and an oil-gas separation structure. The housing is provided with an air intake port; the compression structure is disposed within the housing; the oil-gas separation structure is disposed on the housing, and the inlet of the oil-gas separation structure communicates with the air intake port; and the gas outlet of the oil-gas separation structure communicates with the compression structure. The compressor, air conditioner, and vehicle equipped therewith according to this application can resolve the problem of compressor oil shortage caused by oil in the compressor exhaust.

Description

Technical Field

[0001] The present application belongs to the field of vehicle technology, and in particular relates to a compressor, an air conditioner, and a vehicle having the same. Background Art

[0002] Currently, horizontal, vehicle-mounted scroll compressors offer advantages such as simple structure, compact size, light weight, low noise, high mechanical efficiency, and smooth operation. Scroll compressors are complex machines that operate at high speeds, and ensuring adequate lubrication of moving parts such as the compressor crankshaft, bearings, and scroll disk is essential for maintaining proper operation.

[0003] However, a horizontal vehicle-mounted scroll compressor is a special air pump. When a large amount of refrigerant gas is discharged, it also carries away a small amount of lubricating oil (called oil leakage). Oil leakage from compressor exhaust is unavoidable, but the rate of oil leakage varies. The compressor exhaust contains approximately 0.5-3% lubricating oil. When the oil discharge rate is high, long-term operation will cause the compressor exhaust to carry oil, leading to oil shortage. Oil carryover from the compressor exhaust can lead to insufficient lubrication of moving parts, which can cause wear or scratching of the bearing surface. In severe cases, it can cause shaft seizure and breakage, affecting the reliability of the compressor.

[0004] Therefore, how to provide a compressor, an air conditioner and a vehicle equipped with the same that can solve the problem of oil in the compressor exhaust causing oil shortage in the compressor has become an urgent problem that technicians in this field need to solve. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present application is to provide a compressor, an air conditioner and a vehicle equipped therewith, which can solve the problem of oil shortage in the compressor caused by oil in the compressor exhaust.

[0006] In order to solve the above problems, the present application provides a compressor, comprising:

[0007] A shell body, wherein an air intake port is provided on the shell body;

[0008] A compression structure is provided in the shell;

[0009] and an oil-gas separation structure, wherein the oil-gas separation structure is arranged on the shell, and the inlet of the oil-gas separation structure is communicated with the air intake port; the gas outlet of the oil-gas separation structure is communicated with the compression structure.

[0010] Furthermore, the shell includes a first end cover, and the oil-gas separation structure is arranged on the first end cover.

[0011] Furthermore, the oil-gas separation structure includes a separation chamber, the first end cover is a hollow structure, and the separation chamber is formed inside the hollow structure.

[0012] Furthermore, a sound-absorbing structure is provided in the separation chamber;

[0013] And / or, a separation net is provided in the separation chamber.

[0014] Furthermore, when a silencer structure is provided in the separation chamber, the silencer structure includes a silencer pipe.

[0015] Furthermore, a silencer cavity is provided in the silencer tube, a necking section is provided in the silencer cavity, and the number of necking sections is set to at least one; when the number of necking sections is set to more than two, the more than two necking sections are arranged sequentially in the axial direction of the silencer tube.

[0016] Furthermore, the shell also includes a casing, and the first end cover is arranged at one end of the casing; a gas channel is provided on the casing, and the gas channel connects the gas outlet and the compression chamber of the compression structure; the gas channel is used to guide the gas after oil and gas separation into the compression chamber.

[0017] Furthermore, a hollow channel is provided on the casing, and the hollow channel extends along the axial direction of the compressor, and the hollow channel forms a gas channel.

[0018] Furthermore, the compressor also includes an oil pool, and the oil outlet of the oil-gas separation structure is connected to the oil pool, and the oil outlet is used to discharge the oil after oil-gas separation into the oil pool.

[0019] Furthermore, an oil channel is provided on the first end cover, and the oil channel is connected to the oil outlet and the oil pool;

[0020] And / or, the first end cover includes an end cover body and a bearing support member; the end cover body and the bearing support member are integrally connected; or, the end cover body and the bearing support member are sealed and connected.

[0021] According to another aspect of the present application, an air conditioner is provided, comprising a compressor, which is the above-mentioned compressor.

[0022] According to another aspect of the present application, a vehicle is provided, comprising an air conditioner, which is the above-mentioned air conditioner.

[0023] The compressor, air conditioner and vehicle equipped with the same provided in the present application have an oil-gas separation structure arranged on the shell, and the gas enters the oil-gas separation structure on the shell through the intake hole. The gas after oil-gas separation enters the compression structure for compression. The exhaust oil rate, that is, the oil circulation rate, is low and the reliability is high, which can effectively solve the problem of oil shortage in the compressor caused by oil in the exhaust of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a compressor according to an embodiment of the present application;

[0025] Figure 2 This is a schematic structural diagram of a compressor according to an embodiment of the present application;

[0026] Figure 3 This is a schematic structural diagram of a silencer pipe according to an embodiment of the present application;

[0027] Figure 4 This is a schematic structural diagram of a silencer pipe according to an embodiment of the present application;

[0028] Figure 5 This is a schematic structural diagram of a silencer pipe according to an embodiment of the present application;

[0029] Figure 6 This is a schematic structural diagram of the silencer pipe according to an embodiment of the present application.

[0030] The reference numerals indicate:

[0031] 1. Gas channel; 2. Casing; 3. Motor; 4. Crankshaft; 5. Support bearing; 6. Support; 7. Orbital scroll; 8. Stationary scroll; 9. Second end cover; 10. Exhaust hole; 11. First end cover; 12. Muffler; 1201. Muffler chamber; 1202. First constriction section; 1203. Second constriction section; 13. Separation chamber; 14. Oil channel; 15. Sealing gasket; 16. Bearing support. DETAILED DESCRIPTION

[0032] See also Figure 1-6 As shown, a compressor includes a housing, a compression structure, and an oil-gas separation structure. The housing is provided with an air intake port; the compression structure is provided in the housing; the oil-gas separation structure is provided on the housing, and the inlet of the oil-gas separation structure is connected to the air intake port; the gas outlet of the oil-gas separation structure is connected to the compression structure. The compressor, air conditioner, and vehicle equipped with the same provided by the present application, by providing the oil-gas separation structure on the housing, gas enters the oil-gas separation structure on the housing through the air intake port, and the gas after oil-gas separation enters the compression structure for compression. The exhaust oil carryover rate, i.e., the oil circulation rate, is low, the reliability is high, and the problem of compressor oil shortage caused by exhaust oil carryover can be effectively solved. The air intake port is a circular or other shaped housing air intake passage opened on the outside of the housing.

[0033] The present application also discloses some embodiments, in which the shell includes a first end cover 11, and the oil-gas separation structure is arranged on the first end cover 11. The oil-gas separation structure is arranged on the first end cover 11, and the inlet of the oil-gas separation structure is connected to the intake hole, which can effectively reduce the lubricating oil in the intake air and reduce the exhaust oil rate.

[0034] The present application also discloses some embodiments, in which the oil-gas separation structure includes a separation chamber 13. The first end cover 11 is a hollow structure, and the separation chamber 13 is formed inside the hollow structure. The end cover adopts a hollow structure, and the separation chamber 13 is formed inside the hollow structure. The separation chamber 13 is connected to the air intake port and is used to separate the oil and gas in the gas sucked in from the air intake port. The gas can return from the air conditioning system to the compressor intake, at which time it is in an oil-gas mixture state. The oil and gas are separated in the separation chamber 13, and the separated gas enters the pump body intake chamber.

[0035] The present application also discloses some embodiments, in which a silencer structure is provided in the separation chamber 13; while the compressor completes its intended function (i.e., compressing the gas), it will inevitably generate additional outputs mainly in the form of vibration and noise. The noise of the scroll compressor mainly includes mechanical noise, electromagnetic noise, air noise, and liquid noise. Among them, air noise is caused by air flow pulsation and gas gap leakage, and is transmitted to the space through the air and the shell; liquid noise is caused by refrigerant, lubricating oil jets and cavitation, and is transmitted to the space through the liquid and the shell, and a large part of the scroll compressor noise is caused by the superposition of factors such as the suction line and the corresponding suction passage and the electromagnetic noise of the motor 3. Providing a silencer structure in the separation chamber 13 can effectively silence and reduce the noise of the compressor.

[0036] This application also discloses some embodiments in which a separation net is provided within the separation chamber 13. The separation net is a mesh-like metal mesh that enhances oil-gas separation and reduces noise. The separation principle of the oil-gas separation chamber 13 is as follows: Lubricating oil is generally mixed with gas in the form of droplets of various sizes. During the inhalation process, the oil droplets encounter the walls of the oil-gas separation chamber 13, the silencer 12, or the mesh-like metal mesh, where they accumulate and flow along the walls to the bottom of the separation chamber 13, returning to the oil sump at the bottom of the compressor through the oil channel 14.

[0037] See also Figure 3-4 As shown, the present application also discloses some embodiments, when a silencer structure is provided in the separation chamber 13, the silencer structure includes a silencer pipe 12. The silencer pipe 12 is an expansion silencer pipe.

[0038] See also Figure 4-6As shown, further, a silencer cavity 1201 is provided in the silencer cavity 1201, and a constricted section is provided in the silencer cavity 1201, and the number of constricted sections is set to at least one section; when the number of constricted sections is set to two or more, the two or more constricted sections are arranged in sequence in the axial direction of the silencer cavity 12, and the two or more constricted sections form a series flow pipeline in the silencer cavity 1201. By changing the expansion ratio, expansion chamber length, inlet and outlet pipe insertion method, and the number of expansion chamber stages of the reactive silencer, the noise reduction amount and noise reduction frequency band of the compressor are significantly improved. The inner wall of the silencer cavity 12 forms the silencer cavity 1201, and a pipe portion is embedded in the interior of the silencer cavity 1201. The central axis of the first silencer pipe coincides with that of the pipe portion, and the diameter of the pipe portion is smaller than the diameter of the silencer 12. The pipe portion includes a first pipe portion, which is embedded in the inner wall of the silencer cavity 12 to form a first constricted section 1202. The pipe portion includes a first pipe portion, which is embedded in the inner wall of the muffler pipe 12 to form a first constricted section 1202. The pipe portion includes a second pipe portion, which is embedded in the inner wall of the muffler pipe 12 to form a second constricted section 1203. The first constricted section 1202 and the second constricted section 1203 are not connected, but are connected, forming two constricted sections in series.

[0039] The present application also discloses some embodiments, in which the housing further comprises a casing 2, and a first end cover 11 is provided on one end of the casing 2; a gas channel 1 is provided on the casing 2, and the gas channel 1 connects the gas outlet and the compression chamber of the compression structure; the gas channel 1 is used to guide the gas after oil and gas separation into the compression chamber. The current horizontal vehicle-mounted scroll compressor suction air passes through the compressor motor 3 and then enters the pump body, so the motor 3 heats the compressor suction refrigerant very seriously, greatly reducing the compressor volumetric efficiency and performance. In the present application, the gas channel 1 is provided on the casing to reduce the contact between the refrigerant and the motor 3, which can guide the gas after oil and gas separation to enter the pump body for compression, while also reducing the heating of the refrigerant by the motor 3. The first end cover 11 has an exhaust hole 10 extending in the axial direction of the compressor, and the exhaust hole 10 is connected to the gas channel 1.

[0040] This application also discloses some embodiments in which the casing 2 is provided with a hollow channel extending along the axial direction of the compressor, forming a gas channel 1. That is, the gas channel 1 is inside the casing. After oil and gas separation, the gas enters the pump body through the gas channel 1 inside the casing and is compressed. The refrigerant does not flow through the motor 3 and is at a certain distance from the motor 3, which can further reduce the heating of the refrigerant by the motor 3.

[0041] The present application also discloses some embodiments, in which the compressor further includes an oil pool, and the oil outlet of the oil-gas separation structure is connected to the oil pool, and the oil outlet is used to discharge the oil after oil-gas separation into the oil pool. The oil after oil-gas separation is discharged into the oil pool for recovery, and the lubricating oil can be recovered.

[0042] The present application also discloses some embodiments, in which an oil channel 14 is provided on the first end cover 11, and the oil channel 14 connects the oil outlet and the oil pool; the oil channel 14 is provided on the first end cover 11, so that the lubricating oil directly enters the compressor oil pool from the separation chamber 13, which not only facilitates the recovery of the lubricating oil, but also prevents the lubricating oil from being mixed into the refrigerant again.

[0043] See also Figure 1-2 As shown, the present application also discloses some embodiments, wherein the first end cover 11 includes an end cover body and a bearing support 16; the end cover body and the bearing support 16 are integrally connected; or, the end cover body and the bearing support 16 are sealed and connected.

[0044] The first end cover 11 is composed of an end cover body and a bearing support 16. The bearing support 16 is arranged on the inner surface of the end cover body. The end cover body and the bearing support 16 are connected as an integrated whole, which can make the structure simpler and the installation more convenient. The end cover body and the bearing support 16 can be connected separately, and a sealing gasket 15 is provided between the two to ensure the sealing of the compressor shell 2.

[0045] The present application designs an intake oil-gas separation and silencer 12 structure with different shapes and structures, which can effectively reduce the oil carryover rate of the compressor exhaust and reduce noise. It can effectively reduce the oil carryover rate of the compressor exhaust, reduce noise, and reduce the harmful heating of the intake refrigerant by the motor 3. The scroll compressor with such a structure has good performance, low noise and vibration, low exhaust oil carryover rate (oil circulation rate), and high reliability, thereby achieving the purpose of miniaturization and lightweight of the horizontal vehicle-mounted scroll compressor.

[0046] The horizontal, vehicle-mounted scroll compressor primarily consists of a first end cap 11, a housing, a motor 3, a crankshaft 4, an upper bracket 6, bracket bearings 5, an orbiting scroll 7, a stationary scroll 8, and a second end cap 9. The stator of the motor 3 is fixed to the housing, while its rotor is secured to the crankshaft 4 via an interference fit. The crankshaft 4 is supported at both ends by the first end cap 11 and the upper bracket 6. The orbiting scroll 7 and the stationary scroll 8 are mounted on the upper bracket 6, facing each other with a 180-degree phase difference. Driven by the crankshaft 4, the orbiting scroll 7 engages with the stationary scroll 8 to form a series of isolated, crescent-shaped, enclosed chambers with continuously varying volumes, continuously forming a cycle from suction to compression to exhaust. The compressed refrigerant gas is discharged from the central exhaust port of the stationary scroll 8, then through the exhaust channel of the exhaust end cap and into the system through the exhaust connection pipe connected to the system. The first end cap 11 is the suction end cap, and the second end cap 9 is the exhaust end cap.

[0047] According to an embodiment of the present application, an air conditioner is provided, comprising a compressor, wherein the compressor is the above-mentioned compressor, the compressor is a scroll compressor, and the scroll compressor is a horizontal scroll compressor.

[0048] According to an embodiment of the present application, a vehicle is provided, including an air conditioner, which is the air conditioner described above.

[0049] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0050] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. The above are merely preferred embodiments of the present application. It should be noted that those skilled in the art may make various improvements and variations without departing from the technical principles of the present application, and such improvements and variations shall also be considered within the scope of protection of the present application.

Claims

1. A compressor, characterized in that: include: a housing, wherein the housing is provided with an air intake; a compression structure disposed within the housing; and an oil-gas separation structure, the oil-gas separation structure being arranged on the housing, and the inlet of the oil-gas separation structure being in communication with the air intake port; the gas outlet of the oil-gas separation structure being in communication with the compression structure; the housing comprising a first end cover (11), the oil-gas separation structure being arranged on the first end cover (11); The housing further comprises a casing (2), wherein the first end cover (11) is provided on one end of the casing (2); a gas passage (1) is provided on the casing (2), wherein the gas passage (1) connects the gas outlet with the compression chamber of the compression structure; the gas passage (1) is used to guide the gas after oil and gas separation into the compression chamber; a hollow passage is provided on the casing (2), wherein the hollow passage forms the gas passage (1); The air intake of the compression chamber is located on the radial side of the pump body of the compressor, and the gas channel (1) is connected to the air intake of the compression chamber; the gas after oil and gas separation enters the pump body of the compressor from the gas channel (1) for compression, and the refrigerant does not flow through the motor (3) of the compressor.

2. The compressor according to claim 1, characterized in that The oil-gas separation structure comprises a separation chamber (13); the first end cover (11) is a hollow structure, and the separation chamber (13) is formed inside the hollow structure.

3. The compressor according to claim 2, characterized in that A sound-absorbing structure is provided in the separation chamber (13); And / or, a separation net is provided in the separation chamber (13).

4. The compressor according to claim 3, characterized in that When a silencer structure is provided in the separation chamber (13), the silencer structure comprises a silencer pipe (12).

5. The compressor according to claim 4, characterized in that A silencer cavity (1201) is provided in the silencer tube (12), and a constricted section is provided in the silencer cavity (1201), and the number of the constricted sections is set to at least one; when the number of the constricted sections is set to more than two, the more than two constricted sections are arranged in sequence in the axial direction of the silencer tube (12).

6. The compressor according to claim 1, characterized in that The hollow passage extends along the axial direction of the compressor.

7. The compressor according to claim 1, characterized in that The compressor further includes an oil pool, the oil outlet of the oil-gas separation structure is connected to the oil pool, and the oil outlet is used to discharge the oil after oil-gas separation into the oil pool.

8. The compressor according to claim 7, characterized in that The first end cover (11) is provided with an oil passage (14), and the oil passage (14) is connected with the oil outlet and the oil pool; And / or, the first end cover (11) comprises an end cover body and a bearing support (16); the end cover body and the bearing support (16) are integrally connected; or, the end cover body and the bearing support (16) are sealed.

9. An air conditioner comprising a compressor, characterized in that: The compressor is the compressor according to any one of claims 1 to 8.

10. A vehicle comprising an air conditioner, characterized in that: The air conditioner is the air conditioner described in claim 9.

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