阅读说明：本技术 具有吸气增压的涡旋制冷压缩机 (Scroll refrigeration compressor with suction boosting ) 是由 梁奉敏 王洪帅 于 2019-09-11 设计创作，主要内容包括：本发明公开了一种具有吸气增压的涡旋制冷压缩机。该涡旋制冷压缩机包括：压缩机壳体,其内部形成有机体吸气通道,该机体吸气通道的进气口开设在压缩机壳体的涡轮前盖上,出气口开设在压缩机壳体的后盖上；压缩装置,其包括：偏心驱动轴、电机定子、电机转子、动涡旋盘和静涡旋盘,所述电机转子设置在电机定子内部,并与偏心驱动轴连接；所述动涡旋盘固定在偏心驱动轴的一端,并与静涡旋盘啮合形成月牙形工作腔；以及吸气增压装置,其布设在所述机体吸气通道内,以增加进入月牙形工作腔内制冷剂气体的压力和流量。该涡旋制冷压缩机能够增加进入压缩腔体内制冷剂气体的压力和流量,保证空调系统运行需求。(The invention discloses a scroll refrigeration compressor with suction boosting. This scroll refrigeration compressor includes: the compressor shell is internally provided with an organism air suction channel, the air inlet of the organism air suction channel is arranged on the front cover of the turbine of the compressor shell, and the air outlet of the organism air suction channel is arranged on the rear cover of the compressor shell; a compression device, comprising: the motor comprises an eccentric driving shaft, a motor stator, a motor rotor, a movable vortex disc and a fixed vortex disc, wherein the motor rotor is arranged inside the motor stator and is connected with the eccentric driving shaft; the movable scroll plate is fixed at one end of the eccentric driving shaft and is meshed with the fixed scroll plate to form a crescent working cavity; and the air suction supercharging device is arranged in the air suction channel of the machine body so as to increase the pressure and the flow of the refrigerant gas entering the crescent working cavity. The scroll refrigeration compressor can increase the pressure and flow of refrigerant gas entering the compression cavity, and ensures the operation requirement of an air conditioning system.)

1. A scroll refrigerant compressor with suction boosting comprising:

the compressor shell is internally provided with an organism air suction channel, the air inlet of the organism air suction channel is arranged on the front cover of the turbine of the compressor shell, and the air outlet of the organism air suction channel is arranged on the rear cover of the compressor shell;

a compression device, comprising: the motor comprises an eccentric driving shaft, a motor stator, a motor rotor, a movable vortex disc and a fixed vortex disc, wherein the motor rotor is arranged inside the motor stator and is connected with the eccentric driving shaft; the movable scroll plate is fixed at one end of the eccentric driving shaft and is meshed with the fixed scroll plate to form a crescent working cavity; and

and the air suction supercharging device is arranged in the air suction channel of the machine body so as to increase the pressure and the flow of the refrigerant gas entering the crescent working cavity.

2. A scroll refrigerant compressor with suction plenum as claimed in claim 1, wherein the inlet of said body suction passage is open in the axial or radial direction of the scroll refrigerant compressor with suction plenum.

3. A scroll refrigerant compressor with suction supercharging according to claim 1, wherein the eccentric drive shaft is provided with a first bearing, and the orbiting scroll is provided with a second bearing, and the eccentric drive shaft drives the orbiting scroll to make a circular motion through the second bearing.

4. A scroll refrigerant compressor with suction plenum as recited in claim 1 wherein said orbiting scroll is disposed within the compressor housing by a orbiting scroll support.

5. A scroll refrigerant compressor with suction boosting as claimed in claim 1, wherein said suction boosting means is disposed at the front, middle or rear end of the compressor housing.

6. A scroll refrigerant compressor with suction supercharging according to claim 1, wherein said suction supercharging device is a turbo-charging device, the turbine of which is disposed at the other end of the eccentric drive shaft.

Technical Field

The invention relates to the field of compressors, in particular to a scroll refrigeration compressor with suction boosting.

Background

The scroll refrigeration compressor usually adopts fixed compression, the working condition changes when the rotating speed is fixed, the over-compression and the under-compression occur, and the working efficiency is reduced. When the external environment temperature is too low or other working conditions change, the pressure and flow of the refrigerant absorbed by the compressor are reduced, and the operation requirement of the air conditioning system cannot be met.

The current situation has appeared that the scroll refrigeration compressor with middle air supply and variable displacement can improve the working performance of the scroll refrigeration compressor. The middle air-supplementing scroll refrigeration compressor is characterized in that an air-supplementing hole is designed on a static scroll of the compressor to increase the pressure and the flow of refrigerant gas entering a compression cavity, and the variable-displacement scroll refrigeration compressor is used for changing the rotating speed of the scroll refrigeration compressor and increasing the pressure and the flow of the refrigerant gas entering the compression cavity to meet the operation requirement of an air-conditioning system. However, the conventional scroll refrigeration compressor with intermediate air supply and variable displacement still cannot meet the operation requirement of an air conditioning system.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a scroll refrigeration compressor with suction supercharging, which has a simple and reasonable structure, can increase the pressure and flow of refrigerant gas entering a compression cavity, ensures the operation requirement of an air conditioning system and can improve the heating energy efficiency ratio of the scroll refrigeration compressor.

To achieve the above object, the present invention provides a scroll refrigeration compressor with suction boosting, comprising: the compressor shell is internally provided with an organism air suction channel, the air inlet of the organism air suction channel is arranged on the front cover of the turbine of the compressor shell, and the air outlet of the organism air suction channel is arranged on the rear cover of the compressor shell; a compression device, comprising: the motor comprises an eccentric driving shaft, a motor stator, a motor rotor, a movable vortex disc and a fixed vortex disc, wherein the motor rotor is arranged inside the motor stator and is connected with the eccentric driving shaft; the movable scroll plate is fixed at one end of the eccentric driving shaft and is meshed with the fixed scroll plate to form a crescent working cavity; and the air suction supercharging device is arranged in the air suction channel of the machine body so as to increase the pressure and the flow of the refrigerant gas entering the crescent working cavity.

In a preferred embodiment, the air inlet of the suction channel of the machine body is opened along the axial direction or the radial direction of the scroll refrigeration compressor with suction pressurization.

In a preferred embodiment, the eccentric driving shaft is provided with a first bearing, the movable scroll is provided with a second bearing, and the eccentric driving shaft drives the movable scroll to make a circular motion through the second bearing.

In a preferred embodiment, the orbiting scroll is disposed within the compressor housing by a orbiting plate carrier.

In a preferred embodiment, the suction plenum is disposed at the front, middle or rear end of the compressor housing.

In a preferred embodiment, the intake air charging device is a turbocharger whose turbine is arranged at the other end of the eccentric drive shaft.

Compared with the prior art, the scroll refrigeration compressor with suction supercharging according to the invention has the following beneficial effects: the scroll refrigeration compressor with air suction supercharging is provided with the air suction supercharging device on the air suction channel of the machine body, so that the pressure and the flow of refrigerant gas entering a compression cavity can be increased, the operation requirement of an air conditioning system is ensured, and the heating energy efficiency ratio of the scroll refrigeration compressor can be improved.

Drawings

Fig. 1 is a schematic cross-sectional view of a scroll refrigerant compressor with suction boosting according to a first embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a scroll refrigerant compressor with suction boosting according to a second embodiment of the present invention.

Fig. 3 is a schematic view of a first structure of a turbine of a turbo charger having a scroll refrigerant compressor for suction supercharging according to the first and second embodiments of the present invention.

Fig. 4 is a second structural diagram of a turbine of the turbocharger device having the scroll refrigerant compressor for suction supercharging according to the first and second embodiments of the present invention.

Fig. 5 is a schematic view of a third structure of a turbine of the turbo charger having the scroll refrigerant compressor for suction supercharging according to the first and second embodiments of the present invention.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 1 and 2, a scroll refrigeration compressor with suction boosting according to a preferred embodiment of the present invention has a specific structure including: the compressor comprises a compressor shell, a compression device and a suction supercharging device, wherein the compression device and the suction supercharging device are arranged in the compressor shell, a motor rotor of the compression device drives an eccentric driving shaft to drive a movable scroll plate 9 to do circular motion, and the movable scroll plate 9 of the compression device does revolution translation under the limitation of a pin ring and is meshed with a fixed scroll plate 10 with the same profile parameters. After the refrigerant gas is sucked, the refrigerant gas pressurized by the suction supercharging device is conveyed to a crescent working cavity meshed with a movable scroll 9 and a fixed scroll 10 of the compression device to be compressed, and finally the refrigerant gas is discharged from a gas discharge hole in the center of the fixed scroll 10. The pressure and the flow of refrigerant gas entering the compression cavity can be increased, the operation requirement of the air conditioning system is ensured, and the heating energy efficiency ratio (COP) of the scroll refrigeration compressor can be improved.

Specifically, the interior of the compressor housing forms an air intake passage having an air inlet opening in the turbine front cover 1 of the compressor housing and an air outlet opening in the rear cover 11 of the compressor housing.

Preferably, as shown in fig. 1 and 2, the air inlet of the suction channel of the housing is opened along the axial direction or the radial direction of the scroll refrigeration compressor with suction supercharging, so that the suction supercharging of the scroll refrigeration compressor can be divided into axial air inlet or radial air inlet, and the pressure and the flow of the refrigerant gas entering the compression cavity can be increased by different air inlet modes and suction supercharging devices.

The compression device comprises: the compressor comprises an eccentric driving shaft 3, a motor stator 4, a motor rotor 5, a movable disc bracket 8, a movable scroll 9 and a fixed scroll 10, wherein the motor stator 4 is fixed in a compressor shell; the motor rotor 5 is disposed inside the motor stator 4 and connected to the eccentric drive shaft 3. The movable vortex plate 9 is fixed at one end of the eccentric driving shaft 3 and is meshed with the fixed vortex plate 10 to form a crescent working cavity, and the central part of the fixed vortex plate 10 is provided with an exhaust hole which is communicated with an air outlet of the air suction channel of the machine body.

Preferably, the eccentric drive shaft 3 is provided with a first bearing 6.

Preferably, the movable scroll 9 is provided with a second bearing 7, and the eccentric driving shaft 3 drives the movable scroll to make a circular motion through the second bearing 7.

Preferably, the orbiting scroll 9 is arranged in the compressor housing by means of the orbiting scroll holder 8.

The air suction supercharging device is arranged in an air suction channel of the compressor shell, so that the pressure and the flow of refrigerant gas entering the compression cavity can be increased. After the refrigerant gas is sucked, the refrigerant gas pressurized by the suction supercharging device is conveyed to a crescent working cavity meshed with a movable scroll 9 and a fixed scroll 10 of the compression device to be compressed, and finally the refrigerant gas is discharged from a gas discharge hole in the center of the fixed scroll 10.

Preferably, the suction plenum is disposed at a front end, a middle or a rear end of the compressor housing.

Preferably, the suction supercharging device is a turbo supercharging device, a turbine 2 of the turbo supercharging device is arranged at the other end of the eccentric driving shaft 3, and after the refrigerant gas is sucked, the refrigerant gas after being turbo-supercharged by the suction supercharging device is conveyed to a crescent working cavity meshed with a movable scroll 9 and a fixed scroll 10 of the compression device to be compressed, and finally is discharged from a gas discharge hole at the center of the fixed scroll 10. The pressure and the flow of refrigerant gas entering the compression cavity can be increased, the operation requirement of the air conditioning system is ensured, and the heating energy efficiency ratio (COP) of the scroll refrigeration compressor can be improved.

As shown in fig. 3 to 5, the turbines 2 of the turbocharger are three different models of turbines, and different types of turbines are used as the intake turbocharger according to the actual cooling and installation space requirements. The pressure and flow of refrigerant gas into the compression chamber can be increased by different types of turbocharging devices.

To sum up, this scroll compressor with pressure boost of breathing in is equipped with the supercharging device of breathing in on organism suction channel, can increase the pressure and the flow that get into refrigerant gas in the compression cavity, can also improve scroll compressor's the efficiency ratio of heating when guaranteeing air conditioning system operation demand.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.