CN103629111B - A kind of semi-closed scroll compressor - Google Patents

A kind of semi-closed scroll compressor Download PDF

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Publication number
CN103629111B
CN103629111B CN201210308063.4A CN201210308063A CN103629111B CN 103629111 B CN103629111 B CN 103629111B CN 201210308063 A CN201210308063 A CN 201210308063A CN 103629111 B CN103629111 B CN 103629111B
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China
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scroll
back pressure
movable orbiting
orbiting scroll
sealing gasket
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CN103629111A (en
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汤熙华
伍海浩
李继泰
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Hunan Tangpuyuesi Compressor Technology Co., Ltd.
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Hunan Tangpuyuesi Compressor Technology Co Ltd
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Abstract

nullA kind of semi-closed scroll compressor,It is characterized in that the compression chamber that quiet turbine and dynamic turbine are formed is connected with aerofluxus high pressure chest (C) by the pore in fixed scroll (3),The edge of anti-attrition sealing gasket (10) and fixed scroll (3) is provided with the back pressure air guide channel (G) that middle pressure back pressure cavity (E) is connected with air-breathing low pressure chamber (D),Back pressure guide valve (8) it is provided with in back pressure air guide channel (G),The edge of anti-attrition sealing gasket (10) is provided with the back pressure inlet channel (F) that middle pressure back pressure cavity (E) is connected with aerofluxus high pressure chest (C),The dynamic turbine of movable orbiting scroll (4) carries out plane motion in the quiet turbine of fixed scroll (3) makes the dynamic turbine base of movable orbiting scroll (4) can above produce envelope inner circle movement locus and envelope cylindrical movement locus at anti-attrition sealing gasket (10),Gas port (H) it is provided with on anti-attrition sealing gasket (10),Gas port (H) is positioned partially or entirely between envelope inner circle and envelope cylindrical.

Description

A kind of semi-closed scroll compressor
Technical field
The present invention relates to a kind of screw compressor, particularly relate to a kind of semi-enclosed screw compressor.
Background technology
At present, the critical piece in screw compressor is that two shapes are identical but angle phase position relative misalignment 180 ° Involute scroll plate, first fixed scroll, and another is to be driven by eccentric shaft, its axis is around rotation Shaft axis does the scroll plate that detours revolved round the sun, in work two scroll plate in many places tangent formation seal line, add two The suitable sealing of individual scroll plate end, thus form several crescent air cavitys, outmost turns is suction muffler, not Communicating with low pressure chamber during closing, innermost circle is discharge chamber, is connected with high pressure chest;Between two, heart portion scroll plate public Seal line at point of contact constantly shifts along vortex curve along with the revolution of the scroll plate that detours, and makes these crescent The change that the shape of air cavity is gone round and begun again from large to small.
During a pair scroll compression gas, necessarily lead to the axial force being allowed to separate, make between movable orbiting scroll and supporting member Produce the biggest frictional force, in order to improve the efficiency of compressor, the movable orbiting scroll turbine back side design between high pressure with Middle pressure between low pressure, makes movable orbiting scroll float between quiet dish and supporting member.In how realizing, stablizing of pressure is to carry The efficiency of high compressor and the key technology of reliability.Therefore, a kind of novel semi-enclosed scroll compression is studied Machine has been problem demanding prompt solution.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of semi-enclosed screw compressor, is installed by certain bits Put gas port, with the compressed gas that discharge pressure is too high, it is achieved stablizing of middle pressure, thus reach to balance pressure; Ensure the service life that between air cavity, passage and passage inner structure are arranged, thus ensure whole screw compressor Serviceability and service life.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is, a kind of semi-closed scroll compressor, Including protecgulum, housing, fixed scroll, movable orbiting scroll, support, drive shaft and motor, protecgulum passes through to be connected with housing Part is tightly connected, and protecgulum fixes fixed scroll, and fixed scroll includes quiet turbine and quiet turbine base, and movable orbiting scroll includes moving Turbine and dynamic turbine base, on the supporting quiet turbine being placed on fixed scroll of the dynamic turbine of movable orbiting scroll, moving of movable orbiting scroll Turbine base is placed on anti-attrition sealing gasket, and anti-attrition sealing gasket is arranged on support, support be fixed on fixed scroll or On person's protecgulum, one end of drive shaft is connected on movable orbiting scroll by bearing, and the drive shaft other end is connected by bearing On housing, being provided with motor in housing, rotor is around on the driving shaft, it is characterised in that drive shaft with Have movable sealing between support, support, formed between anti-attrition sealing gasket and movable orbiting scroll in press back pressure cavity, housing sets Being equipped with suction hole, suction hole connects air-breathing low pressure chamber, and protecgulum is provided with steam vent, and it is high that steam vent connects aerofluxus The compression chamber that pressure chamber, quiet turbine and dynamic turbine are formed is connected with aerofluxus high pressure chest by the pore in fixed scroll, subtracts It is logical that mill sealing gasket and the edge of fixed scroll are provided with the back pressure inducing QI that middle pressure back pressure cavity is connected with air-breathing low pressure chamber Road, is provided with back pressure guide valve in back pressure air guide channel, back pressure guide valve is set inducing QI by spring and opens pressure, The operating pressure pressing Pressure in Back-pressure Cavity to be design in when making compressor operating;During the edge of anti-attrition sealing gasket is provided with The back pressure inlet channel that pressure back pressure cavity is connected with aerofluxus high pressure chest, inlet channel is designed as capillary tube pattern and realizes Expenditure and pressure, is allowed to match with back pressure air guide channel;The dynamic turbine of movable orbiting scroll enters in the quiet turbine of fixed scroll Parallel planes motion make the dynamic turbine base of movable orbiting scroll can produce on anti-attrition sealing gasket envelope inner circle movement locus with Envelope cylindrical movement locus, anti-attrition sealing gasket is provided with gas port, and gas port is positioned partially or entirely in envelope Between inner circle and envelope cylindrical.The dynamic turbine base of movable orbiting scroll gas port in the motion partial periodicity of a week has Partly or entirely exposing outside the cylindrical of dynamic turbine base, middle pressure back pressure cavity and air-breathing low pressure chamber pass through gas port Connection.The outer rim of the dynamic turbine base of movable orbiting scroll the bent axle of drive shaft drive carry out translation time at anti-attrition sealing gasket On moving region form envelope inner circle and envelope cylindrical.At the movable orbiting scroll back pressure floating junction with anti-attrition sealing gasket In the semi-closed scroll compressor of structure, anti-attrition sealing gasket is with gas port;It is a setting that the operation principle of gas port is opened Time period;Gas port presses back pressure cavity can pass through price fixing or support to air-breathing low pressure chamber pressure release, air guide channel in realizing Return to air-breathing low pressure chamber.Gas port can be that circular hole is alternatively other shapes of through hole;Aerofluxus high pressure chest gases at high pressure Back-pressure is provided to make movable orbiting scroll float between anti-attrition sealing gasket to middle pressure back pressure cavity by back pressure inlet channel. For guaranteeing that the size of middle pressure Pressure in Back-pressure Cavity increases back pressure guide valve at price fixing, back pressure guide valve is set by spring and leads Gas opens pressure, when making compressor operating in press Pressure in Back-pressure Cavity to meet design requirement to realize Moving plate and float.Work Time back pressure guide valve ceaselessly to switch the control carrying out middle pressure Pressure in Back-pressure Cavity, make part after increasing gas port The medium pressure gas of middle pressure back pressure cavity makes the switch aperture of back pressure guide valve reduce and can enter by gas port pressure release Row essence controls, thus lengthens the working life of back pressure guide valve.Pressure in Back-pressure Cavity control ability is pressed to improve in Yin, The work of movable orbiting scroll is more stable, also makes compressor work depletion few, therefore has the compressor properties of product of gas port to carry Height has 2 5%.
Above-described semi-enclosed screw compressor, anti-attrition sealing gasket is at the dynamic turbine base motions with movable orbiting scroll Between envelope inner circle and the envelope cylindrical of track, the position near envelope inner circle is provided with gas port, moving of movable orbiting scroll Turbine base in the motion partial periodicity of a week, gas port have partly or entirely expose dynamic turbine base it Outward, middle pressure back pressure cavity is connected by gas port with air-breathing low pressure chamber.Realization is pressed what intracavity was pressed stablize, thus Ensure semi-enclosed screw compressor work efficiency.
Above-described semi-enclosed screw compressor, gas port is only provided with one.
Above-described semi-enclosed screw compressor, gas port is provided with two or many on anti-attrition sealing gasket Individual.
Above-described semi-enclosed screw compressor, gas port is circular hole, square hole, bar hole or infundibulate Hole.
Above-described semi-enclosed screw compressor, movable sealing is lip type movable sealing.Chamber is pressed in well sealing, Ensure the normal operation of compressor.
Above-described semi-enclosed screw compressor, the face that support contacts with anti-attrition sealing gasket is provided with connection The cushion hole of back pressure inlet channel is or/and dashpot.The medium pressure gas pressure of back pressure cavity can be pressed in alleviating.
Above-described semi-enclosed screw compressor, cushion hole is arranged on the marginal position of anti-attrition sealing gasket, or / extend to edge with dashpot from the home position of anti-attrition sealing gasket.
Above-described semi-enclosed screw compressor, is provided with anti-rotation mechanism between support and movable orbiting scroll, anti- Free-wheeling system passes anti-attrition sealing gasket.
Above-described semi-enclosed screw compressor, anti-rotation mechanism is made up of circular pit, annulus and short column.
Above-described semi-enclosed screw compressor, circular pit is arranged on the dynamic turbine base of movable orbiting scroll, Annulus is placed in circular pit, and short column is fixed on base, and short column extend into through the hole on anti-attrition sealing gasket In circular pit, annulus is made up of high-abrasive material.Such simple in construction is set, it is possible to be effectively prevented dynamic whirlpool Dish produces the trend around its center rotation under the effect of gas force, and annulus can protect circular pit and short Post so that it is be hardly damaged, it is possible to play good positioning action, is effectively prevented the movable orbiting scroll work at gas force With lower generation around the trend of its center rotation, it is ensured that movable orbiting scroll translation operates, thus extends whole screw compressor Service life, and annulus change convenient, it is simple to maintenance.
Above-described semi-enclosed screw compressor, back pressure guide valve is provided with spring, back pressure guide valve by Spring sets inducing QI and opens pressure.For guaranteeing that the size of middle pressure Pressure in Back-pressure Cavity increases back pressure guide valve at price fixing, Back pressure guide valve by spring set inducing QI open pressure, when making screw compressor work in pressure Pressure in Back-pressure Cavity meet Design requirement, it is achieved Moving plate floats.
Gas port operation principle: the position of gas port movable orbiting scroll dynamic turbine base operate covering scope specific Region so that a certain angle position moved at movable orbiting scroll in the position of gas port, is closed in outside the scope of covering, And other angle positions are in the range of covering, to realize the break-make with low pressure chamber of breath between going round and beginning again; Gas port can be that circular hole may also be other configured bore therethrough such as long waist shaped;Movable orbiting scroll cylindrical is when particular job position Gas port communicates with air-breathing low pressure chamber, and the medium pressure gas of middle pressure back pressure cavity leaks to air-breathing low pressure chamber, and movable orbiting scroll is transported Forwarding other operating positions to, the dynamic turbine base of movable orbiting scroll covers gas port makes gas port leak to air-breathing low pressure chamber Close, change with the dynamic turbine position base of compressor operation movable orbiting scroll and make gas port each rotation all have a spy Inducing QI is put in location.
It is an advantage of the current invention that:
1, in the semi-closed scroll compressor with the movable orbiting scroll back pressure floating structure of anti-attrition sealing gasket, anti-attrition seals Rim strip has gas port.
2, the operation principle of gas port is opened is a setting time period, sets the time period by gas port position and big Little shape determines.
3, gas port is turned on to air-breathing low pressure chamber by middle pressure back pressure cavity, and air guide channel can be returned by price fixing or support To air-breathing low pressure chamber.Gas port can be that circular hole is alternatively other shapes of through hole.
4, aerofluxus high pressure chest gases at high pressure provide back-pressure to make to middle pressure back pressure cavity by back pressure inlet channel Movable orbiting scroll floats between anti-attrition sealing gasket.For guaranteeing that the size of middle pressure Pressure in Back-pressure Cavity increases back pressure inducing QI at price fixing Valve, back pressure guide valve is set inducing QI by spring and opens pressure, when making compressor operating in press Pressure in Back-pressure Cavity to meet Design requirement, it is achieved float.During work, back pressure guide valve ceaselessly to switch and to carry out middle pressure Pressure in Back-pressure Cavity Control, after increasing gas port, make the medium pressure gas pressing back pressure cavity in part make back pressure inducing QI by gas port pressure release The switch aperture of valve reduces and can carry out essence control, thus lengthens the working life of back pressure guide valve.The pressure back of the body in Yin Pressure cavity pressure control ability improves, and the work of movable orbiting scroll is more stable, also makes compressor work depletion few, therefore leads The compressor properties of product of pore improve 2 5%.
Accompanying drawing explanation
Fig. 1 a is the structural representation of semi-closed scroll compressor embodiment 1 of the present invention.
Fig. 1 b is movable orbiting scroll 4 and the structural representation of anti-attrition sealing gasket 10 in Fig. 1 a.
Fig. 2 a is the structural representation of semi-closed scroll compressor embodiment 2 of the present invention.
Fig. 2 b is movable orbiting scroll 4 and the structural representation of anti-attrition sealing gasket 10 in Fig. 2 a.
Detailed description of the invention
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
The technical solution used in the present invention is, a kind of semi-closed scroll compressor, including protecgulum 1, housing 2, quiet Whirlpool dish 3, movable orbiting scroll 4, support 5, drive shaft 6 and motor 7, protecgulum 1 passes through to be connected with housing 2 Part is tightly connected, and protecgulum 1 fixes fixed scroll 3, and fixed scroll 3 includes quiet turbine and quiet turbine base, dynamic whirlpool Dish 4 includes dynamic turbine and dynamic turbine base, and the dynamic turbine of movable orbiting scroll 4 is supporting is placed on the quiet of fixed scroll 3 On turbine, the dynamic turbine base of movable orbiting scroll 4 is placed on anti-attrition sealing gasket 10, and anti-attrition sealing gasket 10 sets Putting on support 5, support 5 is fixed on fixed scroll 3 or protecgulum 1, and one end of drive shaft 6 leads to Crossing bearing to be connected on movable orbiting scroll 4, drive shaft 6 other end is connected on housing 2 by bearing, housing 2 Inside being provided with motor 7, motor 7 rotor ring is wound in drive shaft 6, it is characterised in that drive shaft 6 and machine Movable sealing, support 5, anti-attrition sealing gasket 10 and movable orbiting scroll 4 is had to press back pressure cavity E in being formed between seat 5, It is provided with suction hole A, suction hole A on housing 2 and connects air-breathing low pressure chamber D, the row of being provided with on protecgulum 1 Pore B, steam vent B connect aerofluxus high pressure chest C, and the compression chamber of quiet turbine and the formation of dynamic turbine is by quiet whirlpool Pore on dish 3 is connected with aerofluxus high pressure chest C, and the edge of anti-attrition sealing gasket 10 is provided with middle pressure back pressure cavity The back pressure air guide channel G that E is connected with air-breathing low pressure chamber D, is provided with back pressure in back pressure air guide channel G Guide valve 8, the edge of anti-attrition sealing gasket 10 is provided with middle pressure back pressure cavity E and is connected use with aerofluxus high pressure chest C Back pressure inlet channel F, the dynamic turbine of movable orbiting scroll 4 carries out plane motion in the quiet turbine of fixed scroll 3 to be made The dynamic turbine base of movable orbiting scroll 4 can produce outside envelope inner circle movement locus and envelope on anti-attrition sealing gasket 10 Circular motion track, anti-attrition sealing gasket 10 is provided with gas port H, gas port H and is positioned partially or entirely in bag Between network inner circle and envelope cylindrical.
It is further characterized in that anti-attrition sealing gasket 10 is at the envelope with the dynamic turbine base motions track of movable orbiting scroll 4 Between inner circle and envelope cylindrical, the position near envelope inner circle is provided with gas port H, the dynamic turbine of movable orbiting scroll 4 Base is within motion cycle of one week, and gas port has and partly or entirely exposes outside dynamic turbine base, the middle pressure back of the body Pressure chamber E is connected by gas port H with air-breathing low pressure chamber D.
It is further characterized in that gas port H is only provided with one.
It is further characterized in that gas port H is provided with two or multiple on anti-attrition sealing gasket 10.
It is further characterized in that gas port H is circular hole, square hole, bar hole or funnel-shaped hole.
It is further characterized in that movable sealing is lip type movable sealing.
It is further characterized in that on the face that support 5 contacts with anti-attrition sealing gasket 10 that being provided with connection back pressure air inlet leads to The cushion hole of road F is or/and dashpot.
Be further characterized in that cushion hole is arranged on the marginal position of anti-attrition sealing gasket 10, or/and dashpot from The home position of anti-attrition sealing gasket 10 extends to edge.
Being further characterized in that between support 5 and movable orbiting scroll 4 and be provided with anti-rotation mechanism, anti-rotation mechanism passes Anti-attrition sealing gasket 10.
It is further characterized in that anti-rotation mechanism is made up of circular pit, annulus and short column.
Being further characterized in that circular pit is arranged on the dynamic turbine base of movable orbiting scroll 4, annulus is placed on circle In pit, short column is fixed on base, and short column extend in circular pit through the hole on anti-attrition sealing gasket 10, Annulus is made up of high-abrasive material.
Being further characterized in that on back pressure guide valve 8 and be provided with spring 9, back pressure guide valve 8 is set by spring 9 Determine inducing QI and open pressure.
Fig. 1 a is the structural representation of semi-closed scroll compressor embodiment 1 of the present invention, and Fig. 1 b is in Fig. 1 a Movable orbiting scroll 4 and the structural representation of anti-attrition sealing gasket 10, as shown in Fig. 1 a, semi-closed scroll compressor bag Include protecgulum 1, housing 2, fixed scroll 3, movable orbiting scroll 4, support 5, drive shaft 6 and motor 7, protecgulum 1 Being tightly connected by connector with housing 2, protecgulum 1 fixes fixed scroll 3, fixed scroll 3 include quiet turbine and Quiet turbine base, movable orbiting scroll 4 includes dynamic turbine and dynamic turbine base, the supporting placement of dynamic turbine of movable orbiting scroll 4 On the quiet turbine of fixed scroll 3, the dynamic turbine base of movable orbiting scroll 4 is placed on anti-attrition sealing gasket 10, subtracts Mill sealing gasket 10 is arranged on support 5, and support 5 is fixed on fixed scroll 3 or protecgulum 1, drives One end of axle 6 is connected on movable orbiting scroll 4 by bearing, and drive shaft 6 other end is connected to shell by bearing On body 2, being provided with motor 7 in housing 2, the rotor ring of motor 7 is wound in drive shaft 6, support 5, Press back pressure cavity E in being formed between anti-attrition sealing gasket 10 and dynamic turbine base, housing 2 is provided with suction hole A, suction hole A connect air-breathing low pressure chamber D, protecgulum 1 is provided with steam vent B, steam vent B and connects row The compression chamber that gas high pressure chest C, quiet turbine and dynamic turbine are formed is by the pore in fixed scroll 3 and aerofluxus high pressure chest C connects, and the edge of anti-attrition sealing gasket 10 is provided with middle pressure back pressure cavity E and is connected use with air-breathing low pressure chamber D Back pressure air guide channel G, be provided with back pressure guide valve 8 in back pressure air guide channel G, on back pressure guide valve 8 Being provided with spring 9, back pressure guide valve 8 is set inducing QI by spring 9 and opens pressure, anti-attrition sealing gasket 10 Edge is provided with the back pressure inlet channel F that middle pressure back pressure cavity E is connected, movable orbiting scroll 4 with aerofluxus high pressure chest C Dynamic turbine in the quiet turbine of fixed scroll 3, carry out plane motion make the dynamic turbine base of movable orbiting scroll 4 subtracting Producing envelope inner circle movement locus and envelope cylindrical movement locus on mill sealing gasket 10, anti-attrition sealing gasket 10 exists And the position between dynamic turbine base envelope inner circle movement locus and the envelope cylindrical movement locus of movable orbiting scroll 4 sets Being equipped with gas port H, gas port H and be only provided with one, gas port can also arrange two or more, inducing QI Hole H is circular hole, and gas port H can also be square hole, bar hole or funnel-shaped hole, moving of movable orbiting scroll 4 Turbine base just moves to the gas port of anti-attrition sealing gasket outside dynamic turbine base, middle pressure back pressure cavity E with Air-breathing low pressure chamber D is connected by gas port H;Set on the face that support 5 contacts with anti-attrition sealing gasket 10 Being equipped with cushion hole and the dashpot connecting back pressure inlet channel F, cushion hole is arranged on anti-attrition sealing gasket 10 Marginal position, dashpot extends to edge, support 5 and movable orbiting scroll 4 from the home position of anti-attrition sealing gasket 10 Between be provided with anti-rotation mechanism, anti-rotation mechanism pass anti-attrition sealing gasket 10, anti-rotation mechanism by circle recessed Hole, annulus and short column composition, circular pit is arranged on the dynamic turbine base of movable orbiting scroll 4, and annulus is placed on In circular pit, short column is fixed on base, and short column extend into circular recessed through the hole on anti-attrition sealing gasket 10 In hole, annulus is made up of high-abrasive material.Fig. 1 b is movable orbiting scroll 4 and the anti-attrition sealing gasket 10 of Fig. 1 a Putting the schematic diagram of relation, the dynamic turbine of movable orbiting scroll 4 carries out plane motion in the quiet turbine of fixed scroll 3 to be made The dynamic turbine base of whirlpool dish 4 can produce envelope inner circle movement locus and envelope cylindrical on anti-attrition sealing gasket 10 Movement locus, gas port H is positioned partially or entirely between envelope inner circle and envelope cylindrical, it is illustrated that just It is that the dynamic turbine base of movable orbiting scroll 4 just moves to gas port H and is completely exposed the position of dynamic turbine base, Gas port H is just completely exposed outside dynamic turbine base, and middle pressure back pressure cavity E and air-breathing low pressure chamber D are by leading Pore H connects.
Fig. 2 a is the structural representation of semi-closed scroll compressor embodiment 2 of the present invention, and Fig. 2 b is Fig. 2 a Middle movable orbiting scroll 4 and the structural representation of anti-attrition sealing gasket 10, as shown in Fig. 2 a, semi-closed scroll compressor Including protecgulum 1, housing 2, fixed scroll 3, movable orbiting scroll 4, support 5, drive shaft 6 and motor 7, front Lid 1 is tightly connected by connector with housing 2, and protecgulum 1 fixes fixed scroll 3, and fixed scroll 3 includes quiet Turbine and quiet turbine base, movable orbiting scroll 4 includes dynamic turbine and dynamic turbine base, and the dynamic turbine of movable orbiting scroll 4 is joined Set is placed on the quiet turbine of fixed scroll 3, and the dynamic turbine base of movable orbiting scroll 4 is placed on anti-attrition sealing gasket 10 On, anti-attrition sealing gasket 10 is arranged on support 5, and support 5 is fixed on fixed scroll 3 or protecgulum 1, One end of drive shaft 6 is connected on movable orbiting scroll 4 by bearing, and drive shaft 6 other end is connected by bearing On housing 2, being provided with motor 7 in housing 2, motor 7 rotor ring is wound in drive shaft 6, support 5, press back pressure cavity E in being formed between anti-attrition sealing gasket 10 and dynamic turbine base, housing 2 is provided with air-breathing Hole A, suction hole A connect air-breathing low pressure chamber D, protecgulum 1 are provided with steam vent B, steam vent B even Run in gas high pressure chest C, and the compression chamber that quiet turbine and dynamic turbine are formed is by the pore in fixed scroll 3 and aerofluxus High pressure chest C connects, and the edge of anti-attrition sealing gasket 10 is provided with middle pressure back pressure cavity E and air-breathing low pressure chamber D The back pressure air guide channel G connected, is provided with back pressure guide valve 8, back pressure inducing QI in back pressure air guide channel G Being provided with spring 9 on valve 8, back pressure guide valve 8 is set inducing QI by spring 9 and opens pressure, and anti-attrition seals The edge of pad 10 is provided with the back pressure inlet channel F that middle pressure back pressure cavity E is connected with aerofluxus high pressure chest C, The dynamic turbine of movable orbiting scroll 4 carries out plane motion in the quiet turbine of fixed scroll 3 makes the dynamic turbine of movable orbiting scroll 4 Base can produce envelope inner circle movement locus and envelope cylindrical movement locus, gas port on anti-attrition sealing gasket 10 H is positioned partially or entirely between envelope inner circle and envelope cylindrical, and gas port H is only provided with one, it is possible to Two or more to arrange, gas port H is circular hole, gas port H can also be square hole, bar hole or Funnel-shaped hole, the dynamic turbine base motions of movable orbiting scroll 4 is to the state being completely covered on gas port H, middle pressure Back pressure cavity E is completely enclosed with the interface channel of air-breathing low pressure chamber D, support 5 and anti-attrition sealing gasket 10 Being provided with cushion hole and the dashpot connecting back pressure inlet channel F on the face of contact, cushion hole is arranged on anti-attrition The marginal position of sealing gasket 10, dashpot extends to edge, support from the home position of anti-attrition sealing gasket 10 Being provided with anti-rotation mechanism between 5 and movable orbiting scroll 4, anti-rotation mechanism passes anti-attrition sealing gasket 10, anti-rotation Mechanism is made up of circular pit, annulus and short column, and circular pit is arranged on the dynamic turbine base of movable orbiting scroll 4, Annulus is placed in circular pit, and short column is fixed on base, and short column is stretched through the hole on anti-attrition sealing gasket 10 Entering in circular pit, annulus is made up of high-abrasive material.Fig. 2 b is movable orbiting scroll 4 and the anti-attrition of Fig. 2 a The schematic diagram of sealing gasket 10 position relationship, the dynamic turbine of movable orbiting scroll 4 is carried out in the quiet turbine of fixed scroll 3 Plane motion makes the dynamic turbine base of movable orbiting scroll 4 can produce circular motion rail in envelope on anti-attrition sealing gasket 10 Mark and envelope cylindrical movement locus, gas port H be positioned partially or entirely in envelope inner circle and envelope cylindrical it Between, it is illustrated that be just that the dynamic turbine base of movable orbiting scroll 4 just moves to be completely covered on gas port H Position, the dynamic turbine base of gas port H the most completely passive whirlpool dish 4 covers, middle pressure back pressure cavity E with The interface channel gas port H of air-breathing low pressure chamber D is completely enclosed.
Aerofluxus high pressure chest C gases at high pressure provide back pressure pressure to middle pressure back pressure cavity E by back pressure inlet channel F Power and make movable orbiting scroll 4 float between anti-attrition sealing gasket 10.For guaranteeing that the stability of middle pressure Pressure in Back-pressure Cavity exists Price fixing 3 increases back pressure guide valve 8, and back pressure guide valve 8 is set inducing QI by spring 9 and opens pressure, makes pressure Press Pressure in Back-pressure Cavity to be affected by aerofluxus high pressure fluctuations in during the work of contracting machine to reduce.Back pressure guide valve 8 during work Ceaselessly to switch the control carrying out middle pressure Pressure in Back-pressure Cavity, after increasing gas port H, make part is pressed back pressure The medium pressure gas in chamber is made by gas port H pressure release the switch of back pressure guide valve 8 reduce and can carry out essence control System, thus lengthen the working life of back pressure guide valve 8.Pressure in Back-pressure Cavity control ability is pressed to improve in Yin, dynamic The work of whirlpool dish 4 is more stable, also makes compressor work depletion few, therefore has the compressor properties of product of gas port Improve and have 2 5%.
Gas port operation principle: the position of gas port H hides model in the dynamic turbine base operating of movable orbiting scroll 4 The specific region enclosed so that a certain angle position moved at movable orbiting scroll 4 in the position of gas port H, falls Outside capped scope, and other angle positions are in the range of covering, to realize breath between going round and beginning again Break-make with low pressure chamber;Gas port can be that circular hole may also be other configured bore therethrough such as long waist shaped, movable orbiting scroll 4 Cylindrical gas port H when particular job position communicates with air-breathing low pressure chamber D, calms the anger in middle pressure back pressure cavity E Body leaks to air-breathing low pressure chamber D, and after movable orbiting scroll 4 reruns, the dynamic turbine base of movable orbiting scroll 4 covers leads Pore H makes gas port close, with the dynamic turbine of compressor operation movable orbiting scroll 4 to the leakage of air-breathing low pressure chamber D Position base changes and makes gas port each rotation all have an ad-hoc location inducing QI.

Claims (14)

1. a semi-closed scroll compressor, including protecgulum (1), housing (2), fixed scroll (3), movable orbiting scroll (4), support (5), drive shaft (6) and motor (7), protecgulum (1) and housing (2) pass through connector Being tightly connected, protecgulum (1) fixes fixed scroll (3), and fixed scroll (3) includes quiet turbine and quiet turbine base, Movable orbiting scroll (4) includes dynamic turbine and dynamic turbine base, and the dynamic turbine of movable orbiting scroll (4) is supporting is placed on fixed scroll (3), on quiet turbine, the dynamic turbine base of movable orbiting scroll (4) is placed on anti-attrition sealing gasket (10), anti-attrition Sealing gasket (10) is arranged on support (5), and support (5) is fixed on fixed scroll (3) or protecgulum (1) On, one end of drive shaft (6) is connected on movable orbiting scroll (4) by bearing, and drive shaft (6) other end leads to Cross bearing to be connected on housing (2), in housing (2), be provided with motor (7), motor (7) rotor ring around In drive shaft (6), it is characterised in that have movable sealing between drive shaft (6) and support (5), support (5), Pressing back pressure cavity (E) in being formed between anti-attrition sealing gasket (10) and movable orbiting scroll (4), housing is provided with on (2) Suction hole (A), suction hole (A) connects air-breathing low pressure chamber (D), protecgulum (1) is provided with steam vent (B), Steam vent (B) connects aerofluxus high pressure chest (C), and the compression chamber of quiet turbine and the formation of dynamic turbine is by fixed scroll (3) On pore be connected with aerofluxus high pressure chest (C), the edge of anti-attrition sealing gasket (10) and fixed scroll (3) is arranged There are the back pressure air guide channel (G) that middle pressure back pressure cavity (E) is connected, back pressure inducing QI with air-breathing low pressure chamber (D) Being provided with back pressure guide valve (8) in passage (G), the edge of anti-attrition sealing gasket (10) is provided with middle pressure back pressure The back pressure inlet channel (F) that chamber (E) is connected with aerofluxus high pressure chest (C), the dynamic turbine of movable orbiting scroll (4) Carrying out plane motion in the quiet turbine of fixed scroll (3) makes the dynamic turbine base of movable orbiting scroll (4) can be close in anti-attrition Packing (10) is upper produces envelope inner circle movement locus and envelope cylindrical movement locus, on anti-attrition sealing gasket (10) Being provided with gas port (H), gas port (H) is entirely located between envelope inner circle and envelope cylindrical, gas port Position is in the specific region of the dynamic turbine base operating covering scope of movable orbiting scroll so that the position of gas port is in dynamic whirlpool The a certain angle position of dish motion, is closed in outside the scope of covering, and other angle positions are at the model covered In enclosing, the break-make of middle pressure back pressure cavity (E) and low pressure chamber to realize breath between going round and beginning again.
A kind of semi-closed scroll compressor the most according to claim 1, it is characterised in that anti-attrition sealing gasket (10) close between envelope inner circle and the envelope cylindrical of the dynamic turbine base motions track of movable orbiting scroll (4) The position of envelope inner circle is provided with gas port (H), and the dynamic turbine base of movable orbiting scroll (4) is in the motion week of one week In phase, gas port has and partly or entirely exposes outside dynamic turbine base, and middle pressure back pressure cavity (E) is low with air-breathing Pressure chamber (D) is connected by gas port (H).
3. a semi-closed scroll compressor, including protecgulum (1), housing (2), fixed scroll (3), movable orbiting scroll (4), Support (5), drive shaft (6) and motor (7), protecgulum (1) is sealed even by connector with housing (2) Connecing, protecgulum (1) fixes fixed scroll (3), and fixed scroll (3) includes quiet turbine and quiet turbine base, movable orbiting scroll (4) including dynamic turbine and dynamic turbine base, the dynamic turbine of movable orbiting scroll (4) is supporting is placed on fixed scroll (3) Quiet turbine on, the dynamic turbine base of movable orbiting scroll (4) is placed on anti-attrition sealing gasket (10), anti-attrition seal Pad (10) is arranged on support (5), and support (5) is fixed on fixed scroll (3) or protecgulum (1), One end of drive shaft (6) is connected on movable orbiting scroll (4) by bearing, and drive shaft (6) other end passes through axle Holding and be connected on housing (2), be provided with motor (7) in housing (2), motor (7) rotor ring is wound on and drives On moving axis (6), it is characterised in that have movable sealing between drive shaft (6) and support (5), support (5), Pressing back pressure cavity (E) in being formed between anti-attrition sealing gasket (10) and movable orbiting scroll (4), housing is provided with on (2) Suction hole (A), suction hole (A) connects air-breathing low pressure chamber (D), protecgulum (1) is provided with steam vent (B), Steam vent (B) connects aerofluxus high pressure chest (C), and the compression chamber of quiet turbine and the formation of dynamic turbine is by fixed scroll (3) On pore be connected with aerofluxus high pressure chest (C), the edge of anti-attrition sealing gasket (10) and fixed scroll (3) is arranged There are the back pressure air guide channel (G) that middle pressure back pressure cavity (E) is connected, back pressure inducing QI with air-breathing low pressure chamber (D) Being provided with back pressure guide valve (8) in passage (G), the edge of anti-attrition sealing gasket (10) is provided with middle pressure back pressure The back pressure inlet channel (F) that chamber (E) is connected with aerofluxus high pressure chest (C), the dynamic turbine of movable orbiting scroll (4) Carrying out plane motion in the quiet turbine of fixed scroll (3) makes the dynamic turbine base of movable orbiting scroll (4) can be close in anti-attrition Packing (10) is upper produces envelope inner circle movement locus and envelope cylindrical movement locus, on anti-attrition sealing gasket (10) Being provided with gas port (H), gas port (H) has part between envelope inner circle and envelope cylindrical, gas port Position operate at the dynamic turbine base of movable orbiting scroll the specific region of covering scope so that the position of gas port is dynamic The a certain angle position of whirlpool dish motion, is closed in outside the scope of covering, and other angle positions is in covering In the range of, the break-make of middle pressure back pressure cavity (E) and low pressure chamber to realize breath between going round and beginning again.
A kind of semi-closed scroll compressor the most according to claim 3, it is characterised in that anti-attrition sealing gasket (10) close between envelope inner circle and the envelope cylindrical of the dynamic turbine base motions track of movable orbiting scroll (4) The position of envelope inner circle is provided with gas port (H), and the dynamic turbine base of movable orbiting scroll (4) is in the motion week of one week In phase, gas port has part to expose outside dynamic turbine base, middle pressure back pressure cavity (E) and air-breathing low pressure chamber (D) Connected by gas port (H).
5. according to a kind of semi-closed scroll compressor described in Claims 1-4 any one claim, its It is characterised by that gas port (H) is only provided with one.
6. according to a kind of semi-closed scroll compressor described in Claims 1-4 any one claim, It is characterized in that gas port (H) is provided with two or multiple on anti-attrition sealing gasket (10).
7. according to a kind of semi-closed scroll compressor described in Claims 1-4 any one claim, its It is characterised by that gas port (H) is circular hole, square hole, bar hole or funnel-shaped hole.
8. according to a kind of semi-closed scroll compressor described in Claims 1-4 any one claim, its It is characterised by that movable sealing is lip type movable sealing.
9. according to a kind of semi-closed scroll compressor described in Claims 1-4 any one claim, its It is characterised by the face that support (5) contacts with anti-attrition sealing gasket (10) being provided with connection back pressure inlet channel (F) Cushion hole or/and dashpot.
10. according to a kind of semi-closed scroll compressor described in Claims 1-4 any one claim, its Being characterised by between support (5) and movable orbiting scroll (4) being provided with anti-rotation mechanism, anti-rotation mechanism passes anti-attrition Sealing gasket (10).
11. according to a kind of semi-closed scroll compressor described in Claims 1-4 any one claim, its It is characterised by that anti-rotation mechanism is made up of circular pit, annulus and short column.
12. a kind of semi-closed scroll compressors according to claim 11, it is characterised in that circular pit sets Putting on the dynamic turbine base of movable orbiting scroll (4), annulus is placed in circular pit, and short column is fixed on base, Short column extend in circular pit through the hole on anti-attrition sealing gasket (10), and annulus is made up of high-abrasive material.
13. according to a kind of semi-closed scroll compressor described in Claims 1-4 any one claim, It is characterized in that back pressure guide valve is set inducing QI by spring and opens pressure, when making compressor operating, Pressure in Back-pressure Cavity is The operating pressure of design.
14. according to a kind of semi-closed scroll compressor described in Claims 1-4 any one claim, It is characterized in that back pressure inlet channel (F) is designed as capillary tube pattern and realizes expenditure and pressure, be allowed to lead with back pressure Gas channels be in accordance.
CN201210308063.4A 2012-08-27 2012-08-27 A kind of semi-closed scroll compressor Active CN103629111B (en)

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CN105114303A (en) * 2015-09-18 2015-12-02 苏州中成汽车空调压缩机有限公司 Scroll compressor
JP6738176B2 (en) * 2016-03-25 2020-08-12 サンデン・オートモーティブコンポーネント株式会社 Scroll compressor
CN106014977B (en) * 2016-06-08 2018-05-04 湖南贝特新能源科技有限公司 Screw compressor
CN105909518B (en) * 2016-06-29 2018-05-18 东莞市金达机电有限公司 A kind of pneumatics component of vortex air compressor machine
CN106014978A (en) * 2016-07-05 2016-10-12 湖南贝特新能源科技有限公司 Scroll compressor
CN106286294B (en) * 2016-09-19 2019-06-07 珠海格力电器股份有限公司 Scroll compressor having a plurality of scroll members
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JP6709971B2 (en) * 2017-01-27 2020-06-17 パナソニックIpマネジメント株式会社 Scroll compressor

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