CN206477993U - A kind of scroll compressor - Google Patents

Abstract

The utility model discloses a kind of scroll compressor, it has sealing ring and pressurizing valve.Fixed scroll, movable orbiting scroll, whirlpool disc carrier and sealing ring constitute a back pressure chamber.Fixed scroll is provided with an air admission hole, and the air admission hole is connected to back pressure chamber, and pressurizing valve is arranged in the air admission hole.One end of the sealing ring is withstood on movable orbiting scroll, and the other end is withstood on the disc carrier of whirlpool.Pressurizing valve introduces on high-tension side gas（Refrigerant）, the pressure of the controllable back pressure chamber of relief valve is within the specific limits, it is to avoid whirlpool disk contacts tension, starts load excessive.Back pressure chamber is made up of fixed scroll, movable orbiting scroll, whirlpool disc carrier and sealing ring, and contact end face of the movable orbiting scroll with sealing ring is sealing surface, reduces the extra sealing structure of casing.

Description

A kind of scroll compressor

Technical field

The utility model is related to the compressor of air conditioner of monoblock type, more particularly to a kind of scroll compressor.

Background technology

The turbulent structure of scroll compressor is mutually twisted by a pair of dynamic and static whirlpool disks and formed.It should ensure that between dynamic fixed scroll Good sealing, it is to avoid because secondary refrigerant leakage causes loss in efficiency.Han Na Visteons company devises one kind and improved by back pressure The compressor arrangement of dynamic fixed scroll sealing, with reference to described in 201480005265.9.There is the compressor back pressure chamber and back pressure to adjust Throttling path.Back pressure chamber is formed between convolution scroll plate and rotary shaft, for being vortexed to the support convolution of the direction of fixed scroll Disk.Backpressure regulation loop includes first flow path and second flow path, and first flow path is in the way of discharge room is connected with back pressure chamber Formed, second flow path is formed in the way of back pressure chamber is connected with suction chamber.The formation of back pressure chamber in the case need by Housing and rotary shaft, if the sealing of housing and rotary shaft does not reach requirement, back pressure chamber is difficult to form predetermined high pressure.

Utility model content

The utility model proposes a kind of scroll compressor, without sealing vortex support and rotary shaft, to the hole of housing The required precision of gap is low, is easy to manufacture.

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

A kind of scroll compressor, including casing, end cap, fixed scroll, movable orbiting scroll, whirlpool disc carrier, drive motor and rotation Rotating shaft, the end cap is fixed on the end of casing, and the fixed scroll is fixed in the casing, and the movable orbiting scroll is buckled in the quiet whirlpool On disk, the whirlpool disc carrier is located in the casing, and the rotary shaft is fixed in the drive motor, the tail of the rotary shaft End is rotatably mounted to the bottom of the casing, and the rotary shaft passes through the whirlpool disc carrier, and the top of the rotary shaft is provided with inclined Heart axle, the eccentric shaft is inserted on the movable orbiting scroll, it is characterised in that the scroll compressor also includes sealing ring and pressurizing valve, One end of the sealing ring is withstood on the movable orbiting scroll, and the other end is withstood on the whirlpool disc carrier, the fixed scroll, movable orbiting scroll, whirlpool Disc carrier and sealing ring constitute a back pressure chamber, and the fixed scroll is provided with an air admission hole, and the air admission hole is connected to the back pressure chamber, The pressurizing valve is arranged in the air admission hole.

In this scroll compressor of the present utility model, the movable orbiting scroll has a groove, and the sealing ring is by mirror Face end and anchor portion composition, the mirrored end are located in the groove, and the anchor portion is resisted against the whirlpool disc carrier On.

In this scroll compressor of the present utility model, venthole is provided with the whirlpool disc carrier, the venthole connects It is connected in the back pressure chamber, the venthole and is provided with a relief valve.

In this scroll compressor of the present utility model, the pressurizing valve by the first elastic component, the first seal with And first breather plug composition.

In this scroll compressor of the present utility model, the relief valve by the second elastic component, the second seal with And second breather plug composition.

Implement this scroll compressor of the present utility model, have the advantages that：Pressurizing valve introduces on high-tension side Gas（Refrigerant）, the pressure of the controllable back pressure chamber of relief valve is within the specific limits, it is to avoid whirlpool disk contacts tension, starts load mistake Greatly.Back pressure chamber is made up of fixed scroll, movable orbiting scroll, whirlpool disc carrier and sealing ring, and contact end face of the movable orbiting scroll with sealing ring is close Front cover, reduces the extra sealing structure of casing.

Brief description of the drawings

Fig. 1 is the schematic diagram of scroll compressor of the present utility model；

Fig. 2 is Fig. 1 sectional view；

Fig. 3 is the sectional view of Fig. 1 other direction；

Fig. 4 is the sectional view of Fig. 1 other direction；

Fig. 5 is Fig. 4 partial enlarged drawing, the main presentation structure of back pressure chamber；

Fig. 6 is the schematic diagram of Fig. 1 fixed scroll；

Fig. 7 is the schematic diagram of Fig. 1 movable orbiting scroll.

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.

Air compressor of the present utility model as shown in Fig. 1 to 7, mainly by casing 10, end cap 20, fixed scroll 30, dynamic Whirlpool disk 40, whirlpool disc carrier 50, drive motor 60, rotary shaft 70, inverter 80 and sealing ring 90 and pressurizing valve 37 are constituted.The group Into.End cap 20 is fixed on the end of casing 10.The end of casing 10 is provided with first flange disk 11, and end cap 20 is provided with second flange disk 21, the second flange disk 21 is connected to first flange disk 11 through multiple screw rods 22.Fixed scroll 30 and whirlpool disc carrier 50 are fixed on machine In shell 10, movable orbiting scroll 40 is buckled in the fixed scroll 30.The tail end of rotary shaft 70 is rotatably mounted to the bottom of frame, the rotation Axle 70 passes through whirlpool disc carrier 50, and the top of the rotary shaft 70 is provided with eccentric shaft 71, and the eccentric shaft 71 is inserted on movable orbiting scroll 40.End cap 20 constitute higher-pressure region 23 with fixed scroll 30, and casing 10 constitutes low-pressure area 12 with movable orbiting scroll 40.Drive motor includes stator 61 and turned Son 62, stator 61 is fixed in casing, and rotor 62 is located inside stator 61, and the rotor 62 is connected to rotary shaft 70.Motor Rotary shaft 70 is driven, rotary shaft 70 drives movable orbiting scroll 40 to revolve round the sun, compression refrigerant.Pressure hole 24 is located on end cap 20, low pressure hole 13 On casing 10.Whirlpool disk component sucks gas from low pressure hole 13, is sprayed after pressurization from pressure hole 24.

One end of sealing ring 90 is withstood on the movable orbiting scroll 40, and the other end is withstood on the whirlpool disc carrier 50, the quiet whirlpool Disk 30, movable orbiting scroll 40, whirlpool disc carrier 50 and the composition back pressure chamber 51 of sealing ring 90.The end face of the contact with sealing ring 90 of movable orbiting scroll 40 For sealing surface, the extra sealing structure of casing 10 is reduced.Gases at high pressure enter after the back pressure chamber 51, it is possible to provide axial action Power, reduces whirlpool dish gap.The fixed scroll 30 is provided with air admission hole 36, and the air admission hole 36 is connected to the back pressure chamber 51, described to add Pressure valve 37 is arranged in the air admission hole 36.Pressurizing valve 37 introduces on high-tension side gas（Refrigerant）And hinder direction to leak.The whirlpool Venthole 52 is provided with disc carrier 50, the venthole 52, which is connected in the back pressure chamber 51, the venthole 52, is provided with a pressure release Valve 53.Relief valve 53 can control the pressure of back pressure chamber 51 within the specific limits, it is to avoid whirlpool disk contacts tension, start load excessive. Sealing ring is contacted with the contact surface of whirlpool disc carrier 50 to be quiet, is contacted with the contact surface of movable orbiting scroll 40 to be dynamic.Preferably, the dynamic whirlpool Disk 40 has a groove 42, and the sealing ring 90 is made up of mirrored end 91 and anchor portion 92, and the mirrored end 91 is located at institute State in groove 42, the anchor portion 92 is resisted against on the whirlpool disc carrier 50.Preferably, pressurizing valve 37 is by the first elastic component 371st, the first seal 372 and the first breather plug 373 are constituted.Relief valve 53 is by the second elastic component 531, the second seal 532 And second breather plug 533 constitute.

Reference picture 3,4, the casing 10 has cylindrical cavity 14 and receiving room 15, and the receiving room 15 is through wiring hole 82 and the circle Post chamber 14 is connected.The top of the receiving room 15 is provided with cover body 81, and the inverter 80 is located in the receiving room 15.The casing 10 madial wall is provided with the first buckling groove 16 and the second buckling groove 17, and the whirlpool disc carrier 50 is fixed on first buckling groove 16 On, the drive motor 60 is fixed on second buckling groove 17.Through the buckling groove 17 of the first buckling groove 16 and second, whirlpool disk The radial position of support 50 and drive motor 60 is fixed.The bottom of the casing 10 is provided with tubular groove 18, and the rotary shaft 70 is consolidated It is scheduled in the drive motor 60, the tail end of the rotary shaft 70 is rotatably arranged in the tubular groove 18.End cap 20 is fixed on After the side wall of casing 10, the axial location of whirlpool disc carrier 50, rotary shaft 70 and drive motor 60 is also fixed.Due to reducing screw rod Part and riveting operation, the structure of compressor are simpler, and workman's assembling is also faster.Preferably, the madial wall of the casing 10 With an air inlet duct 19, the air inlet duct 19 passes through the whirlpool disc carrier 50.The setting of the air inlet duct 19 can be avoided in whirlpool disc carrier Air inlet component separately is set on 50, cost is reduced.The fixed scroll 30 has an inlet channel 31, the air inlet duct 19 be connected to it is described enter Gas passage 31.There is an outlet passageway 32, the end of the outlet passageway 32 is provided with a flexible blocking member 33 in the fixed scroll 30. The flexible blocking member 33 does not hinder gases at high pressure to flow out, but the debris in cavity can be avoided to enter whirlpool disc mechanism.The quiet whirlpool Disk 30 includes quiet vortex lines 34, and movable orbiting scroll 40 includes dynamic vortex line 41.The annulus 35 of fixed scroll 30 is used to support movable orbiting scroll 40.

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 (5)

1. a kind of scroll compressor, including casing, end cap, fixed scroll, movable orbiting scroll, whirlpool disc carrier, drive motor and rotation Axle, the end cap is fixed on the end of casing, and the fixed scroll is fixed in the casing, and the movable orbiting scroll is buckled in the fixed scroll On, the whirlpool disc carrier is located in the casing, and the rotary shaft is fixed in the drive motor, the tail end of the rotary shaft The bottom of the casing is rotatably mounted to, the rotary shaft passes through the whirlpool disc carrier, and the top of the rotary shaft is provided with bias Axle, the eccentric shaft is inserted on the movable orbiting scroll, it is characterised in that the scroll compressor also includes sealing ring and pressurizing valve, should One end of sealing ring is withstood on the movable orbiting scroll, and the other end is withstood on the whirlpool disc carrier, the fixed scroll, movable orbiting scroll, whirlpool disk Support and sealing ring constitute a back pressure chamber, and the fixed scroll is provided with an air admission hole, and the air admission hole is connected to the back pressure chamber, institute Pressurizing valve is stated to be arranged in the air admission hole.

2. scroll compressor according to claim 1, it is characterised in that the movable orbiting scroll has a groove, described close Seal ring is made up of mirrored end and anchor portion, and the mirrored end is located in the groove, and the anchor portion is resisted against described On the disc carrier of whirlpool.

3. scroll compressor according to claim 2, it is characterised in that venthole is provided with the whirlpool disc carrier, should Venthole, which is connected in the back pressure chamber, the venthole, is provided with a relief valve.

4. scroll compressor according to claim 1, it is characterised in that the pressurizing valve is by the first elastic component, first Seal and the first breather plug composition.

5. scroll compressor according to claim 3, it is characterised in that the relief valve is by the second elastic component, second Seal and the second breather plug composition.