CN1796791A - Variable capacity equipment in revolving compressor - Google Patents
Variable capacity equipment in revolving compressor Download PDFInfo
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- CN1796791A CN1796791A CN 200410097064 CN200410097064A CN1796791A CN 1796791 A CN1796791 A CN 1796791A CN 200410097064 CN200410097064 CN 200410097064 CN 200410097064 A CN200410097064 A CN 200410097064A CN 1796791 A CN1796791 A CN 1796791A
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Abstract
A volume variable device of rotary compressor is prepared as forming its by-pass regulating by valve guide, valve plate and spring; contacting valve plate on front end of by-pass hole; pressing one end of spring into connection tube and fixing it; pressing another end of spring into spring projection and fixing it.
Description
Technical field
The present invention relates to a kind of rotary compressor of compressor field, particularly relate to the exhaust that to control the pressing chamber refrigerant gas according to demand, regulate a kind of rotary compressor capacity varying device of cold power.
Background technique
In general, the compressor effect is the compression energy that the mechanicalness energy is converted to compressible fluid.Usually can divide into round dynamic formula, Scroll, circle center type and blade type.Rotary compressor mainly is applicable to air regulators such as air-conditioning, and in order to adapt to the multifunction of air-conditioning, rotary compressor also more and more needs to change the product of capacity.For this reason, adopt the rotation number of control compressor, the mode of compressor with variable capacity is widely known by the people with the change capacity.But, become the main cause that product price rises because this need possess complicated controller (controller).Therefore need provide cheap, have the capacity varying device of stability.The present invention just possesses this condition.
Fig. 1 a and Fig. 1 b show is the profile diagram of gas flow situation that possesses the operating mode of existing rotary compressor capacity varying device.The demonstration of Fig. 2 is the planimetric map of existing rotary compressor capacity varying device.What Fig. 3 showed is existing rotary compressor capacity varying device decomposing schematic representation.What Fig. 4 showed is existing rotary compressor capacity varying device profile diagram.
Shown in Fig. 1 a and Fig. 1 b, existing rotary compressor is the shell 1 that gas suction pipe SP and gas discharge pipe DP are set by connection, the upside that is arranged on shell 1 produces rotating force, is arranged on the downside of shell 1, with the compressor formation of the rotating force compressed refrigerant of this electronic generation.
Electronic portion inserts the stator MS of power supply and is arranged on the inside of stator MS by the inside that is fixed on shell 1 and from the outside, arrange across a fixed gap, and interact and while rotor rotated Mr formation with said stator MS.
Compressor is by forming the both sides up and down that the ring-like cylinder 2 that is arranged on shell 1 inside covers cylinder 2, forming the main bearing 3 of inner space V and less important bearing 4 together is pressed into rotor Mr and is supported to pass on the running shaft 5 of rotating force to be combined in the eccentric part of running shaft 5 with rotatable form by main bearing 3 and less important bearing 4, spiral in the inner space of cylinder 2 rotary-piston 6 of energy compressed refrigerant; With the form of the outer circumferential face that can be crimped on rotary-piston 6, on cylinder 2, be the inner space V zoning of cylinder 2 blade 7 (see figure 3)s of suction chamber and pressing chamber with transportable combinations of states to radial direction; Has the port of spuing 3a near being combined in main bearing 3 central authorities with the form that can open and close; Restriction possesses the resonant chamber of accommodating discharge valve assembly body 8 from the refrigerant gas discharge valve assembly body 8 that pressing chamber spues; The silencing apparatus 9 that is arranged on main bearing 4 outer side surfaces constitutes.Also have, the centre of gas suction pipe SP, be in charge of connection, the centre of gas discharge pipe DP, be in charge of and connect exhaust end pass-over offset 12, the connecting tube 13 that will illustrate with the back is suction side pass-over offset 11 and couple together, and with the refrigeration agent switching valve 14 that forms three-way valve suction side pass-over offset 11 and exhaust end pass-over offset 12 is coupled together between the connecting tube 13 in addition.
As shown in Figure 2, cylinder 2 forms the ring-like above-mentioned rotary-piston 6 that makes and can carry out relative movement.Forming blade crack 2a in the one side makes above-mentioned blade 7 carry out straight line motion to radial direction.Opposite side at blade crack 2a connects the reverse side that forms the suction port 2b that is communicated with gas suction pipe SP to radial direction, then form the spue port 3a of connection at the opposite side of blade crack 2a, be used for the guide slot 2c that spues that induces refrigerant gas to spue at main bearing 3.To suction port 2b direction, probably near circuitous modulating valve 210 degree, then form the circuitous hole 2d of circuity part refrigerant compressed gas from blade crack 2a.At the outlet side of circuitous hole 2d, form the valve opening 2e that inserts circuitous modulating valve 20.
Shown in Fig. 3,4, circuitous modulating valve 20 is by the packing ring of revealing attached to warning face and the cut-out of circuitous hole 2d and valve opening 2e 21, form the valve thin slice 22 of valve face 22a attached to packing ring 21, dismounting is at the valve face 22a of valve thin slice 22, regulate the circuitous valve plate 23 of pressurized gas, possess valve mount surface 24c and limit the valve guiding 24 of above-mentioned valve plate 23 open amounts and support the spring 25 of valve guiding 24 to be configured in addition.
In the central authorities of packing ring 21 and valve thin slice 22, each has formed gas orifice 21a and the gas orifice 22b identical with circuitous hole 2d.
Valve guiding 24 is the outstanding support protuberance 24a that can be installed in valve thin slice 22 more than that formed at its edge.At the gas drain tank 24b that supports to have formed between the protuberance 24a discharge connecting tube 14 by the pressurized gas of circuitous hole 2d.Also have, the formation valve mount surface 24c of central authorities in valve guiding 24 is used for that above-mentioned valve plate 23 is directed into support protuberance 24a and articulates.At the center of valve mount surface 24c, formed gas bunghole 24d, make from the refrigerant gas of suction side pass-over offset 11 or 12 supplies of exhaust end pass-over offset and pass through, be used for supporting above-mentioned valve plate 23.In order to make valve plate 23 rely on backside pressure to keep closed condition under maximum mode of operation state, the diameter D1 of gas bunghole 24d is bigger than the diameter of circuitous hole 2d.
The action of the above-mentioned existing rotary machine that contracts is as described below.Both, insert power supply for the stator MS of electronic portion, after rotor Mr began rotation, the running shaft 5 of compressor also can rotate with rotor Mr, and 6 of rotary-pistons are done off-centre at the inner space of cylinder 2 V and rotated.Off-centre rotation along with rotary-piston 6, refrigerant gas is inhaled into suction chamber, continue to be compressed to certain pressure, the pressure of pressing chamber reaches the moment than the pressure high pressure in the shell 1, the spue inside of shell 1 of spue port 3a and the silencing apparatus 9 by main bearing 3.
Here, as shown in Figure 1a, when compressor starts in the early stage, will be with maximum operating mode running, therefore to be adjusted to the state that connecting tube 13 and exhaust end pass-over offset 12 are connected to refrigeration agent switching valve 14, the high pressure of supplying with by this exhaust end pass-over offset 12 gas that spues, gas bunghole 24d by valve guiding 24, to valve plate 23 pressurizations, valve plate 23 is being pressed on the valve face 22a of valve thin slice 22, cut off the circuitous hole 2d of cylinder 2, the ownership refrigerant gas by this pressing chamber discharges from freezing cycle device through the port 3a that spues of main bearing 3 shell 1 that spues.
On the contrary, shown in Fig. 1 b, compressor (or air-conditioning) is because of stable during with the running of minimum operating mode, refrigeration agent switching valve 14 is adjusted to the state that connecting tube 13 is connected with suction side pass-over offset 11, and the low pressure of supplying with by this pass-over offset 11 sucks the gas bunghole 24d support valve plate 23 of gas by valve guiding 24.Because the gas pressure of the pressure ratio pressing chamber of support valve plate 23 is low, valve plate 23 presses to and opens circuitous hole 2d when valve is guided 24 directions, by circuitous hole 2d compressed portion refrigerant gas, gas drain tank 24d by circuitous hole 2d and valve guiding 24 discharges, therefore reduce the amount of the refrigerant gas that pressing chamber spues, reduce the refrigerating capacity of air-conditioning.
But, the capacity varying device of aforesaid existing rotary compressor, the not only complex structure of circuitous modulating valve 20, and each accessory will sporadicly be assembled, and therefore also has the low shortcoming of producibility.
Also have,, therefore also have the worry of refrigerant gas leakage, and, the low shortcoming of compressor performance is arranged because can produce the dead volume of valve thin slice 22 sizes because 23 contacts of valve plate can be dismantled when the valve face 22a of valve thin slice 22.
Also have,, not only,, might cause the disengaging of circuitous modulating valve 20 and cause the low of compressor reliability thus also because can not stably support spring 25 to cylinder (2) processing difficulties of spring groove 2f along with the spring groove that spring 25 is clipped in valve opening 2e is fixed
This shows that above-mentioned existing rotary compressor capacity varying device obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem that existing rotary compressor capacity varying device exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that above-mentioned existing rotary compressor capacity varying device exists, the inventor is based on being engaged in this type of product specification manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of a kind of rotary compressor capacity varying device of new structure, can improve general existing rotary compressor capacity varying device, make it have more practicability.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Main purpose of the present invention is, overcome the defective that existing rotary compressor capacity varying device exists, and provide a kind of a kind of rotary compressor capacity varying device of new structure, technical problem to be solved is to make it simplify the formation and the assembling of circuitous modulating valve, can improve producibility.Thereby be suitable for practicality more, and have the value on the industry.
Another object of the present invention is to, a kind of rotary compressor capacity varying device is provided, technical problem to be solved is to make its switching degree that improves circuitous hole, reduces dead volume, provides and can improve compressor performance, thereby be suitable for practicality more.
A further object of the present invention is, a kind of rotary compressor capacity varying device is provided, and technical problem to be solved is that its circuitous modulating valve can easily be fixed, and prevents to break away from, and improves the compressor reliability, thereby is suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of capacity varying device of rotary compressor is proposed according to the present invention of the present invention's proposition, the rotary-piston 6 and the outer circumferential face that overlaps this rotary-piston 6 that comprise the motion of spiraling, when radial direction drives, possess and suck the inner space V that is spuing behind the compression refrigerant gas, in order to be communicated with this inner space, the cylinder 110 that between suction port SP and discharge opening DP, possesses the circuitous hole of discharge section pressurized gas, connection supplies to the suction gas of low pressure the suction side pass-over offset 11 of cylinder 110 from freezing whirligig at the suction port SP of cylinder, high pressure compressed gas from the spue exhaust end pass-over offset 12 of freezing cycle device of cylinder 110, the exhaust end pass-over offset 12 of being in charge of the circuitous hole 112 that is communicated to cylinder selectively from the centre of suction side pass-over offset 11, be arranged on suction side pass-over offset 11, exhaust end pass-over offset 12 and cylinder also can switch the refrigeration agent switching valve 14 that refrigerant gas flows between the circuitous hole, this refrigeration agent switching valve 14 inserts on the valve opening 115 that is connected in circuitous hole 114, open and close circuitous hole 114 selectively, the capacity varying device of the ring-like compressor of the circuitous modulating valve of compressor with variable capacity comprises circuitous modulating valve 120, be characterized in that described circuitous modulating valve is by valve guiding 121, valve pocket 122, valve plate 123, spring 124 constitutes, wherein, its outer circumferential face forms more than one guiding protuberance 121a, between this guiding protuberance 121a, form more than one gas drain tank 121b, form the valve guiding 121 of gas bunghole 121d in central authorities, in order to guide 121 guiding protuberance 121a the inboard valve space that forms regulation at valve, in order to guide 121 gas drain tank and operating mode according to valve, be communicated with valve pocket 122 that forms gas discharge hole 122b in the central selectively, the valve plate 123 that can axially move the circuitous hole 114 of latch-release cylinder 110 when sliding into guiding protuberance 121a down is equipped with in valve space between valve guiding 121 and valve pocket 122.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The capacity varying device of aforesaid a kind of rotary compressor, the wherein said back side in valve guiding 121 forms modular spring projection 121f, be arranged on the spring 124 of the behind of valve guiding 121, its 124 1 end is pressed into and is fixed among the spring projection 121f, and then its other end is fixed by the end support of the connecting tube 13 that is connected with refrigeration agent changing valve 14.
The capacity varying device of aforesaid a kind of rotary compressor, wherein said valve pocket 122 are the inner peripheral surfaces at gas discharge hole 122b, form the protrusion that the valve that prevents valve plate 123 disengagings articulates protuberance 122c.
Aforesaid a kind of, the capacity varying device of wherein said a kind of rotary compressor, the tip in wherein said circuitous hole 114, form side-prominent in the gas discharge hole 122b of valve pocket 122, the sealing protuberance (114a) in valve plate 123, be close to of contact.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technological scheme as can be known, in order to reach aforementioned goal of the invention, circuitous modulating valve of the present invention is made of valve guiding, valve pocket, several springs of valve plate, can reduce accessory, relies on the modularization assembling, can simplify packing engineering, improves the producibility of compressor.Again, make valve plate directly touch the tip in circuitous hole, reduced dead volume, make valve plate touch the sealing protuberance in circuitous hole, improved seal degree, thereby improve the performance of compressor.Again, spring one end is pressed into connecting tube fixes, the other end is pressed into and is fixed on the spring projection, makes that circuitous modulating valve is lighter fixes more firmly, thereby improves the credit worthiness of compressor.
By technique scheme, the capacity varying device of a kind of rotary compressor that the present invention proposes has following advantage at least:
1, the present invention also has valve plate by guiding of modularization assembled valve and valve pocket, thereby simplifies the packing engineering of circuitous valve, improves the producibility of compressor.
2, the present invention directly touches circuitous hole to valve plate, has not only reduced dead volume, and improves seal degree, thereby improves the performance of compressor.
3, the present invention supports spring with connecting tube, can improve the credit worthiness of compressor.
4, the present invention is simple in structure, and is easy for installation, reduced cost.
In sum, the capacity varying device of a kind of rotary compressor of special construction of the present invention is by simplifying the formation and the assembling of circuitous modulating valve, to improve its producibility; By improving the switching degree in circuitous hole, reduce dead volume, to improve compressor performance; Can easily fix by strengthening circuitous modulating valve, prevent to break away from, to improve the compressor reliability; Thereby be suitable for practicality more, and have the value on the industry.
It has above-mentioned many advantages and use value, and in like product, do not see have similar structural design to publish or use and really genus innovation, no matter it structurally or bigger improvement all arranged on the function, have large improvement technically, and produced handy and practical effect, and the capacity varying device of more existing rotary compressor has the multinomial effect of enhancement, thereby be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 a and Fig. 1 b: be the profile diagram of the other gas flow situation of operating mode of the rotary compressor that possesses existing capacity varying device.
Fig. 2: be the floor map of existing rotary compressor capacity varying device;
Fig. 3: be existing rotary compressor capacity varying device decomposing schematic representation;
Fig. 4: be existing rotary compressor capacity varying device profile diagram;
Fig. 5: be rotary compressor capacity varying device decomposing schematic representation of the present invention;
Fig. 6: be the floor map of rotary compressor capacity varying device of the present invention;
Fig. 7: be the longitudinal plane schematic representation of assembling rotary compressor capacity varying device of the present invention;
Fig. 8: be the longitudinal plane schematic representation of rotary compressor capacity varying device breakdown action of the present invention.
Wherein:
1: shell 2: cylinder
2a: blade crack 2b: suction port
2c: guide slot 2d spues: circuitous hole
2e: valve opening 2f: spring groove
3: main bearing 3a: port spues
4: less important bearing 5: running shaft
6: rotary-piston 7: blade
8: valve assembly body 9: silencing apparatus
11: suction side pass-over offset 12: the exhaust end pass-over offset
13: connecting tube 14: the refrigeration agent switching valve
20: circuitous modulating valve 21: packing ring
21a: gas orifice 22: valve thin slice
22a: valve face S: valve space
22b: gas orifice 23: valve plate
24: valve guiding 24a: protuberance
24b: gas drain tank 24c: mount surface
24d: gas bunghole 25: spring
110: cylinder 111: the blade crack
112: suction port 113: guide slot spues
114: circuitous hole 114a: the sealing protuberance
115: valve opening 120: circuitous modulating valve
121: valve guiding 121a: guiding protuberance
121b: gas drain tank 121c: valve mount surface
121d: gas bunghole 121e: lid articulates groove
121f: spring projection 122: valve pocket
121a: resilient projection 122b: gas discharge hole
122c: valve articulates protuberance 123: valve plate
124: spring SP: gas suction pipe
DP: gas discharge pipe V: inner space
MS: stator Mr: rotor
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, its embodiment of capacity varying device, structure, feature and the effect thereof of a kind of rotary compressor that foundation the present invention is proposed, describe in detail as after.
See also Fig. 5, Fig. 6, Fig. 7, shown in Figure 8, the capacity varying device of a kind of rotary compressor of preferred embodiment of the present invention.
As Fig. 1,2, shown in 6, rotary compressor mainly comprises: be fixedly installed on the inside of shell 1 and form the cylinder 110 in circuitous hole 114 in the one side, cover a side of cylinder 110, the common inner space V that forms, be combined in the main bearing 3 of the running shaft 5 that drives engine rotor Mr to the radial direction support, cover the opposite side of cylinder 110, the common inner space V that forms, on one side the eccentric part of above-mentioned running shaft 5 as the axle direction support, on one side the less important bearing 4 of lower end to the radial direction support, be combined in the rotary-piston 6 of the refrigerant gas that the eccentric part of running shaft 5 and compression suck by cylinder 110 suction ports 112 with rotatable form, be crimped on the outer circumferential face of rotary-piston 6 and drive and be combined in the blade with blade crack 111 7 on the cylinder 110 with the form that glides to radial direction.
Also comprise with the suction port 112 of cylinder 110 and being connected, make refrigerant gas from the absorb gas suction pipe SP of SPACE V of the vaporizer of freezing cycle device, connection is at shell 1, the gas discharge pipe DP that the refrigerant gas that spues in cylinder 110 compression is spued to the condenser of freezing cycle device, centre at gas suction pipe SP is in charge of, be communicated to the suction side pass-over offset 11 in the circuitous hole 114 of said cylinder 110 selectively, centre at gas discharge pipe DP is in charge of, be communicated to the exhaust end pass-over offset 12 in said cylinder 110 circuitous holes 114 selectively, connect suction side pass-over offset 11 and exhaust end pass-over offset 12, be communicated to the connecting tube 113 of aftermentioned cylinder 110 valve openings 115, be arranged on the refrigeration agent switching valve 14 that flows that suction side pass-over offset 11 and exhaust end pass-over offset 12 also have switching refrigerant gas between the connecting tube 13, open and close the circuitous modulating valve 120 of circuitous hole 114 and compressor with variable capacity selectively.
In order to make above-mentioned rotary-piston 6 can carry out relative movement, cylinder 110 forms ring-like, forms in the one side to make above-mentioned blade 7 carry out straight-line blade crack 111 to radial direction.Side in blade crack 111, connect and form to radial direction, the suction port that is communicated with gas suction pipe SP, reverse side is at the opposite side in blade crack 111, then form the port 30a that spues that is communicated with at above-mentioned main bearing 3, the guide slot 113 that spues of inducing refrigerant gas to spue, from blade crack 111 directions to suction port 112 directions, probably near circuitous modulating valve 210 degree, formed the circuitous hole 114 of circuity part refrigerant compressed gas, the outlet side in circuitous hole 114 has then formed the valve opening 115 that inserts circuitous modulating valve 120.
Also have, the tip in circuitous hole 114 will form so that ring-type is outstanding, insert will circuitous cover 112 described later gas discharge hole 122b, make the sealing protuberance 114a of the circular cross section image that valve plate 123 is adjacent to when contacting.
Valve guiding 121 forms more than one gas drain tank 121b between its outer circumferential face guiding protuberance 121a, form valve mount surface 121c in the central, then forms the gas bunghole 121d that is communicated with above-mentioned connecting tube 14 at the center of valve mount surface 121c.In order to make when the maximum operating mode valve plate 123 can rely on backside pressure keep closed condition, the diameter D1 of gas bunghole 121d is bigger than the diameter D2 of circuitous hole 2d.
Also have, the outer circumferential face part of valve guiding 121 more properly preferably forms cover at the outer circumferential face offset of guiding protuberance 121a and articulates groove 121e, makes the outer circumferential face of above-mentioned valve pocket 122 consistent with the outer circumferential face of valve guiding 121.In addition,,, form modularization, will form volute spring projection 121f in order to be pressed into above-mentioned spring 124 at the back side of valve guiding 121.
The compact disk that spring 124 is pushed valve guiding 121 strength of circuitous hole 114 directions to by generation form around spring, and the one end preferably is pressed on the spring projection 121f that is fixed on above-mentioned circuitous guiding 121, and the other end then preferably is close to connecting tube 113 tips that are fixed on the valve opening 115 that is pressed into cylinder 110.
Among the figure,, given same-sign to those and in the past identical part.
The capacity varying device of above-mentioned rotary compressor of the present invention has following action effect.Both, if open the power supply of the air-conditioning that ring-like compressor is installed, power supply will be communicated to the electronic portion of compressor, and running shaft 5 begins rotation, when rotary-piston 6 is rotated motion at the inner space of cylinder 110 V, after sucking the refrigerant gas compression, spue from shell 1, this refrigerant gas is the condenser of gas discharge pipe DP ejection freezing cycle device, passing through expansion utensil and vaporizer successively, causing that change of state produces cold air.Afterwards repeatedly, again by gas suction pipe SP, suck a series of processes of the inner space V compression of above-mentioned compressor cylinder 110 from vaporizer.
At this moment, during the air-conditioning primary starting, compressor turns round with maximum operating mode, for this reason will be refrigeration agent switching valve 14, being adjusted to connecting tube 13 is connected with exhaust end pass-over offset 12, by this exhaust end pass-over offset 12, the gas that spues of high pressure is guided 121 gas bunghole 121d by above-mentioned valve, to valve plate 123 pressurizations.Therefore, as shown in Figure 7, valve plate 123 is close to the sealing protuberance 114a that circuitous hole 114 tips possess, and cuts off the circuitous hole 114 of cylinder 110, makes the refrigerant gas of all pressing chambers, and by the port 3a that spues of main bearing 3, shell 1 spues.
On the contrary, if because the running of air-conditioning is stable, with minimum operating mode running, to be adjusted to refrigeration agent switching valve 14, the circuitous plate in connecting tube and suction side is connected,, the backside pressure of valve plate 123 is lowered as Fig. 8, make valve plate 123 rely on the pressure of pressing chamber to press to valve and guide 121 valve mount surface 121c direction, open the circuitous hole 114 of cylinder 110.By the circuitous hole 114 of opening, the compressed portion refrigerant gas is discharged to the pressing chamber of cylinder 110, reduces the amount of the refrigerant gas that pressing chamber spues, and reduces the cold air ability of air-conditionings by these.
Like this, circuitous modulating valve also has spring 124 to constitute by valve guiding 121 and valve pocket 122 and valve plate 123, can reduce accessory, wherein valve guiding 121 and valve pocket 122 also have valve plate 123, rely on the modularization assembling, can simplify packing engineering, improve the producibility of compressor.
Make valve plate 123 directly touch the tip in circuitous hole in addition, reduce dead volume, make valve plate touch the sealing protuberance 114a in circuitous hole 114, improve seal degree, thereby improve the performance of compressor.
In addition, it is fixing that spring is pressed into connecting tube 13, can fix more firmly circuitous modulating valve 120 is lighter, thus the credit worthiness of raising compressor.
The technological innovation of the capacity varying device of a kind of rotary compressor that the present invention that above-mentioned structure like this constitutes proposes all has many saving graces for technician of the same trade now, and the progressive that possesses skills really.
As mentioned above, formation and the assembling that is contemplated that the circuitous modulating valve of simplification substantially of the present invention is to improve producibility; Improve the switching degree in circuitous hole, to reduce dead volume; Circuitous modulating valve can easily be fixed, prevent to break away from,, thereby be suitable for practicality more with raising compressor reliability.But, in technical field of the present invention,, can improve other exercisable embodiments of the present invention as long as possess the most basic knowledge.In the present invention substantive technological scheme has been proposed the patent protection request, its protection domain should comprise all variation patterns with above-mentioned technical characterstic.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made some changes or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (4)
1, a kind of capacity varying device of rotary compressor, the rotary-piston 6 and the outer circumferential face that overlaps this rotary-piston (6) that comprise the motion of spiraling, when radial direction drives, possess and suck behind the compression refrigerant gas at the inner space that spues (V), in order to be communicated with this inner space, the cylinder (110) that between suction port (SP) and discharge opening (DP), possesses the circuitous hole of discharge section pressurized gas, connection supplies to the suction gas of low pressure the suction side pass-over offset (11) of cylinder (110) from freezing whirligig at the suction port (SP) of cylinder, high pressure compressed gas from the spue exhaust end pass-over offset (12) of freezing cycle device of cylinder (110), the exhaust end pass-over offset (12) of being in charge of the circuitous hole (112) that is communicated to cylinder selectively from the centre of suction side pass-over offset (11), be arranged on suction side pass-over offset (11), exhaust end pass-over offset (12) and cylinder also can switch the refrigeration agent switching valve (14) that refrigerant gas flows between the circuitous hole, this refrigeration agent switching valve (14) inserts and is connected on the valve opening (115) of circuitous hole (114), open and close circuitous hole (114) selectively, the capacity varying device of the ring-like compressor of the circuitous modulating valve of compressor with variable capacity comprises circuitous modulating valve (120), it is characterized in that: described circuitous modulating valve (120) is by valve guiding (121), valve pocket (122), valve plate (123), spring (124) constitutes, wherein, its outer circumferential face forms more than one guiding protuberance (121a), between this guiding protuberance (121a), form more than one gas drain tank (121b), form the valve guiding (121) of gas bunghole (121d) in central authorities, for the inboard valve space that forms regulation of the guiding protuberance (121a) that can guide (121) at valve, in order to guide the gas drain tank and the operating mode of (121) according to valve, be communicated with valve pocket (122) that forms gas discharge hole (122b) in the central selectively, the valve plate (123) that can axially move the circuitous hole (114) of latch-release cylinder (110) when sliding into guiding protuberance (121a) down is equipped with in valve space between valve guiding (121) and valve pocket (122).
2, the capacity varying device of a kind of rotary compressor according to claim 1, it is characterized in that the wherein said back side in valve guiding (121) forms modular spring projection (121f), be arranged on the spring (124) of the behind of valve guiding (121), its (124) one end is pressed into and is fixed in the spring projection (121f), and then its other end is fixed by the end support of the connecting tube (13) that is connected with refrigeration agent changing valve (14).
3, the capacity varying device of a kind of rotary compressor according to claim 1, it is characterized in that wherein said valve pocket (122) is the inner peripheral surface at gas discharge hole (122b), form the protrusion that the valve that prevents valve plate (123) disengaging articulates protuberance (122c).
4, according to the capacity varying device of a kind of rotary compressor described in any in the claim 1 to 3, the tip that it is characterized in that wherein said circuitous hole (114), formation is side-prominent in the gas discharge hole (122b) of valve pocket (122), the sealing protuberance (114a) that contact is close in valve plate (123).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100970644A CN100540903C (en) | 2004-12-21 | 2004-12-21 | A kind of capacity varying device of rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100970644A CN100540903C (en) | 2004-12-21 | 2004-12-21 | A kind of capacity varying device of rotary compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1796791A true CN1796791A (en) | 2006-07-05 |
| CN100540903C CN100540903C (en) | 2009-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100970644A Expired - Fee Related CN100540903C (en) | 2004-12-21 | 2004-12-21 | A kind of capacity varying device of rotary compressor |
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| Country | Link |
|---|---|
| CN (1) | CN100540903C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375401A (en) * | 2012-04-27 | 2013-10-30 | 日立空调·家用电器株式会社 | Hermetic compressor |
-
2004
- 2004-12-21 CN CNB2004100970644A patent/CN100540903C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375401A (en) * | 2012-04-27 | 2013-10-30 | 日立空调·家用电器株式会社 | Hermetic compressor |
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| Publication number | Publication date |
|---|---|
| CN100540903C (en) | 2009-09-16 |
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