CN206592284U - The mute compressor of air conditioning for automobiles - Google Patents

Abstract

The utility model discloses a kind of mute compressor of air conditioning for automobiles, its whirlpool disc carrier, which is provided with axial trough, the axial trough, is provided with bearing.The diameter of axial trough is more than bearing diameter, and sealing plate is covered on the disc carrier of whirlpool.The sealing plate constitutes an oil sealing chamber with axial trough, bearing.Oil sealing chamber is made up of sealing plate with axial trough, bearing, simple in construction, without processing hole in the disc carrier of whirlpool, reduces manufacturing cost.Chimeric between bearing and rotary shaft to be designed as gap cooperation, lubricating oil is fed to the oil sealing chamber, so as to form oil film in the region.The oil film can suppress vibration and be transmitted from bearing to housing, so as to reduce the vibrating noise from scroll compressor.

Description

The mute compressor of air conditioning for automobiles

Technical field

The utility model is related to screw compressor, more particularly to a kind of mute compressor, and the mute compressor is arranged on vapour On car air-conditioning.

Background technology

Relative to piston compressor, screw compressor operates steadily, it is quiet to vibrate small, working environment, can be used as air-conditioning The compression device of refrigerant.The general principle of screw compressor is that movable orbiting scroll revolves round the sun relative to fixed scroll bias, so vibration noise Unavoidably.Specifically, some exciting sources such as pressure fluctuation of the torque fluctuation of movable orbiting scroll and refrigerant during compression refrigerant Vibration is produced, the Vibration propagation to rotary shaft is delivered in composition scroll compressor shell, then reach vortex via bearing The outside of formula compressor.For further reduction noise, there is inventor to propose some improvement projects.201480042755.6 that Compressor separates bearing using lubricating oil and contacted with the hard of housing, the Vibration propagation between reduction bearing and casing.But the lubrication Oily anti-vibration structure is complicated, and whirlpool disc carrier hole is excessive, and manufacturing cost is higher.

Utility model content

The utility model proposes a kind of mute compressor of air conditioning for automobiles, using simpler lubricating oil anti-vibration structure, Noise is further reduced, manufacturing cost is also reduced, it is easy to utilize.

What the technical solution of the utility model was realized in：

A kind of mute compressor of air conditioning for automobiles, it is characterised in that including shell, fixed scroll, movable orbiting scroll, whirlpool disc carrier, Motor, rotary shaft and sealing plate, the fixed scroll, whirlpool disc carrier are each attached in the shell, the movable orbiting scroll button In the fixed scroll, the tail end of the rotary shaft is rotatably arranged on the shell, and the top of the rotary shaft passes through institute Whirlpool disc carrier is stated, the top is provided with eccentric shaft, the eccentric shaft is inserted on the movable orbiting scroll, wherein, the whirlpool disc carrier is provided with Bearing is provided with axial trough, the axial trough, the diameter of the axial trough is more than the bearing diameter, and the sealing plate is covered in the whirlpool disk branch On frame, the sealing plate constitutes an oil sealing chamber with axial trough, bearing.

In this mute compressor of the present utility model, the movable orbiting scroll bottom is provided with cylinder groove, the cylinder groove and set There is cylindrical bearing, the excentric sleeve is in the cylindrical bearing.

In this mute compressor of the present utility model, the shell is made up of the first housing and the second housing, and this The end of one housing is provided with first flange, and the end of second housing is provided with second flange, and the first flange is through multiple screw rods It is connected to the second flange.

In this mute compressor of the present utility model, the rotary shaft is provided with the first Balance Iron, first balance Iron is made up of sleeve pipe, extension board and the counterweight part of at least one, and the counterweight part is riveted on extension board.

Implement the mute compressor of this air conditioning for automobiles of the present utility model, have the advantages that：Bearing and rotation It is fitted together between axle and is designed as gap（Oil sealing chamber）Coordinate, lubricating oil is fed to the oil sealing chamber, so as to form oil film in the region.Should Oil film can suppress vibration and be transmitted from bearing to housing, so as to reduce the vibrating noise from scroll compressor.Oil sealing Chamber is made up of sealing plate with axial trough, bearing, simple in construction, without processing hole in the disc carrier of whirlpool, reduces manufacturing cost.

Brief description of the drawings

Fig. 1 is the schematic diagram of the mute compressor of air conditioning for automobiles of the present utility model；

Fig. 2 is the schematic diagram of Fig. 1 other direction；

Fig. 3 is Fig. 1 sectional view；

Fig. 4 is Fig. 3 partial enlarged drawing；

Fig. 5 is Fig. 3 another partial enlarged drawing；

Fig. 6 is Fig. 3 another partial enlarged drawing.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe.

This mute compressor of the present utility model as shown in Figures 1 to 6, including shell 10, fixed scroll 20, movable orbiting scroll 30th, whirlpool disc carrier 40, motor 50, rotary shaft 60 and sealing plate 70.Reference picture 1,2, shell 10 is by the He of the first housing 11 Second housing 12 is constituted.The end of first housing 11 is provided with first flange 13, and the end of second housing 12 is provided with the second method Orchid 14, first flange 13 is connected to second flange 14 through multiple screw rods.First housing 11 and the second housing 12 composition cavity, whirlpool The parts such as disk, support are located in the cavity.Wherein, fixed scroll 20, whirlpool disc carrier 40 are each attached in shell 10, and movable orbiting scroll 30 is detained In the fixed scroll 20.At least part of shell 10 constitutes higher-pressure region 15, at least part of shell 10 and dynamic whirlpool with fixed scroll 20 Disk 30 constitutes low-pressure area 16.The tail end of rotary shaft is rotatably arranged on shell 10（Bearing arrangement）.Wear on the top of rotary shaft Whirlpool disc carrier 40 is crossed, the top is provided with eccentric shaft 61, eccentric shaft 61 is inserted on movable orbiting scroll 30.Motor 50 by stator 51, turn Son 52 and control circuit 53 are constituted, and stator 51 is fixed in shell 10, and rotor 52 is located in stator 51, and the rotor 52 is connected to Rotary shaft 60.Control circuit 53 is through parts such as the externally connected inverters of binding post 54.Motor 50 drives rotary shaft 60, rotation Rotating shaft 60 drives movable orbiting scroll 30 to revolve round the sun, compression refrigerant.Shell 10 is provided with pressure hole 17 and low pressure hole 18, and pressure hole 17 is located at the On one housing 11, low pressure hole 18 is located on the second housing 12.Pressure hole 17 is located on the higher-pressure region 15, and it is low that low pressure hole 18 is located at this On nip 16.Whirlpool disk component sucks gas from low pressure hole 18, is sprayed after pressurization from pressure hole 17.

Such as Fig. 3, mute compressor of the present utility model also has centring ring 80.Whirlpool disc carrier 40 is provided with mounting groove 41, fixed Position circle 80 is located in the mounting groove 41.The centring ring 80 is provided with the first limiting section 81 and the second limiting section 82, and movable orbiting scroll 30 is provided with First chute 33, fixed scroll 20 is provided with the second chute 21.First limiting section 81 stretches into first chute 33, due to the first limiting section 81 limitation, movable orbiting scroll 30 is vertically moved relative to centring ring 80.Second limiting section 82 stretches into second chute 21, due to second The limitation of limiting section 82, fixed scroll 20 is moved horizontally relative to centring ring 80.So movable orbiting scroll 30 is relative to the level of fixed scroll 20 With the mobile composition of vertical both direction around fixed scroll 20 revolution.Rotation of the movable orbiting scroll 30 with respect to fixed scroll 20 is limited, cold Matchmaker is periodically compressed, it is ensured that compression efficiency.Fixed scroll 20 is provided with pressurization hole 22, and the pressurization hole 22 is interior to be provided with valve module 23, movable orbiting scroll 30 is provided with oil storage tank 34, and the oil storage tank 34 is connected through the pressurization hole 22 with higher-pressure region 15.Provided with profit in oil storage tank 34 Lubricating oil, in the process of revolution of movable orbiting scroll 30, lubricating oil plays a part of oil sealing, and can reduce the abrasion of whirlpool disk contact surface.Compression Machine adds the air pressure of higher-pressure region 15 when working, the air pressure can pass to the lubricating oil in oil storage tank 34.Valve module 23 include limit plunger 24, ball 25, spring 26.Limit plunger 24 is fixed in pressurization hole 22, and one end of spring 26 is fixed on pressurization In hole 22, the other end is connected to ball 25, and the ball 25 withstands on the end of limit plunger 24.The structure of spring 26 can avoid lubricating oil Reverse flow.

Whirlpool disc carrier 40, which is provided with axial trough 41, the axial trough 41, is provided with bearing 42.The diameter of axial trough 41 is more than the diameter of bearing 42, It is chimeric between bearing 42 and rotary shaft 60 to be designed as gap（Oil sealing chamber 43）Coordinate.Sealing plate 70 is covered on whirlpool disc carrier 40, should Sealing plate 70 constitutes an oil sealing chamber 43 with axial trough 41, bearing 42.Lubricating oil is fed to the oil sealing chamber 43, so as to be formed in the region Oil film.The oil film can suppress vibration and be transmitted from bearing 42 to housing, so as to reduce the vibration from scroll compressor Noise.Oil sealing chamber 43 is made up of sealing plate 70 with axial trough 41, bearing 42, simple in construction, without the processing hole in whirlpool disc carrier 40 Gap, reduces manufacturing cost.Preferably, being worn and torn for reduction eccentric shaft 61, the bottom of movable orbiting scroll 30 is provided with cylinder groove 31, the cylinder groove Cylindrical bearing 32 is provided with 31, eccentric shaft 61 is enclosed in the cylindrical bearing 32.Rotary shaft 60 is provided with the first Balance Iron 62, rotor 52 are provided with the second Balance Iron 55.Balance Iron causes the stress of rotary shaft 60 evenly, reduces vibration, preferably, first balance Iron 62 is made up of sleeve pipe 63, extension board 64 and the counterweight part of at least one 65, and the counterweight part 65 is riveted on extension board 64.Counterweight The quality in portion 65 can require to replace according to the size of whirlpool disk.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model Protection domain within.

Claims (4)

1. a kind of mute compressor of air conditioning for automobiles, it is characterised in that including shell, fixed scroll, movable orbiting scroll, whirlpool disc carrier, drive Dynamic motor, rotary shaft and sealing plate, the fixed scroll, whirlpool disc carrier are each attached in the shell, and the movable orbiting scroll is buckled in In the fixed scroll, the tail end of the rotary shaft is rotatably arranged on the shell, and the top of the rotary shaft is described in Whirlpool disc carrier, the top is provided with eccentric shaft, and the eccentric shaft is inserted on the movable orbiting scroll, wherein, the whirlpool disc carrier is provided with axle Bearing is provided with groove, the axial trough, the diameter of the axial trough is more than the bearing diameter, and the sealing plate is covered in the whirlpool disc carrier On, the sealing plate constitutes an oil sealing chamber with axial trough, bearing.

2. the mute compressor of air conditioning for automobiles according to claim 1, it is characterised in that the movable orbiting scroll bottom is provided with circle Cylindrical bearing is provided with post groove, the cylinder groove, the excentric sleeve is in the cylindrical bearing.

3. the mute compressor of air conditioning for automobiles according to claim 1, it is characterised in that the shell by the first housing and Second housing is constituted, and the end of first housing is provided with first flange, and the end of second housing is provided with second flange, and described the One flange is connected to the second flange through multiple screw rods.

4. the mute compressor of the air conditioning for automobiles according to claims 1 to 3 any one, it is characterised in that the rotation Axle is provided with the first Balance Iron, and first Balance Iron is made up of sleeve pipe, extension board and the counterweight part of at least one, the counterweight part riveting It is connected on extension board.