CN104214103B - Rotary compressor - Google Patents

Abstract

The invention discloses a kind of rotary compressor, including：Cylinder assembly, base bearing, supplementary bearing and exhaust apparatus, cylinder assembly include the cylinder with compression chamber；Supplementary bearing of advocating peace is respectively provided at the top and bottom of cylinder assembly, steam vent is formed with base bearing and/or supplementary bearing, steam vent includes centre bore and gas channel lumens, one end of the neighbouring compression chamber of centre bore constructs the port of export that one end away from compression chamber of the arrival end of steam vent, centre bore and gas channel lumens constructs steam vent；Exhaust apparatus includes exhaust valve plate, stop assembly and elastic component, exhaust valve plate is located at arrival end to be sentenced and opens or closes arrival end, stop assembly is located in centre bore and positioned at the side of the neighbouring port of export of exhaust valve plate, and elastic component is located between exhaust valve plate and stop assembly and is coordinated with stop assembly.Rotary compressor according to embodiments of the present invention, exhaust valve plate move up and down it is steady and limit harmful play of the elastic component in steam vent.

Description

Rotary compressor

Technical field

The present invention relates to art of refrigeration units, more particularly, to a kind of rotary compressor.

Background technology

Although the system for carrying rotary compressor is constantly popularized in the whole world, by the improvement of structure and changing for portion of material Become, the work efficiency of rotary compressor is also greatly improved compared with the invention initial stage, but as the important feature of rotary compressor Part, for many years all using tongue type air bleeding valve.

Equipped with the bearing of the conventional rotary compressor of tongue type air bleeding valve, due to the area of valve accommodating groove it is larger, its bottom surface Also it is thin, cause bearing rigidity to reduce, when this allows for rotary compressor work, bearing is easily deformed, and not only brings loss in efficiency, Reliability is also reduced.

The content of the invention

It is contemplated that at least solving one of technical problem present in prior art.For this purpose, one object of the present invention It is to propose a kind of rotary compressor, between the exhaust valve plate and stop assembly of the rotary compressor, is provided with elastic component, So as to ensure that the stationarity of exhaust valve plate motion, and elastic component is fixed with stop assembly, so as to limit elastic component in aerofluxuss Harmful play in hole.

Rotary compressor according to embodiments of the present invention, including：Cylinder assembly, the cylinder assembly include cylinder, institute State cylinder and there is compression chamber；Base bearing and supplementary bearing, the base bearing and supplementary bearing are respectively provided at the top of the cylinder assembly And bottom, the steam vent connected with the compression chamber, the steam vent bag are formed with the base bearing and/or the supplementary bearing Include centre bore and at least one gas passage chamber, the gas passage chamber be located on the outside of the perisporium of the centre bore and with it is described in Heart hole connects, and one end of the neighbouring described compression chamber of the centre bore constructs the arrival end of the steam vent, the centre bore The port of export of the steam vent is constructed with the one end away from the compression chamber in the gas passage chamber；And exhaust apparatus, The exhaust apparatus includes exhaust valve plate, stop assembly and elastic component, and the exhaust valve plate is located in the steam vent and position Sentence in the arrival end and open or close the arrival end, the stop assembly is located in the centre bore and is located at the row To limit the vertical displacement of the exhaust valve plate, the elastic component is located at the row for the side of the neighbouring described port of export of air valve plate Coordinate between air valve plate and the stop assembly and with the stop assembly.

Rotary compressor according to embodiments of the present invention, as exhaust apparatus includes exhaust valve plate, stop assembly and bullet Property part, only need to be provided for accommodating the steam vent of exhaust valve plate on base bearing and/or supplementary bearing, the shape of steam vent is unrestricted System, when exhaust valve plate is opened, gases at high pressure are shunted from the arrival end of exhaust valve plate on an equal basis by least one gas passage chamber To the port of export, as the area of the port of export is more than the area of arrival end, the resistance for discharging gas diminishes, such that it is able to reduce rotation The overcompression loss discharged caused by gas of formula compressor, while by opening or closing steam vent using exhaust valve plate, no Gas can be caused to leak, and by elastic component is only against between exhaust valve plate and stop assembly and by one end of elastic component with Stop assembly is fixed, it is ensured that the stationarity that exhaust valve plate moves up and down, and is limited harmful in steam vent of elastic component and altered It is dynamic.In addition, the simple structure of exhaust apparatus, easily manufactured, industrial utilization is big.

Alternatively, locating slot, the bullet are formed with a side surface of the neighbouring described exhaust valve plate of the stop assembly The one end fits away from the exhaust valve plate of property part are in the locating slot.

Alternatively, the elastic component includes one or more flexure strips.

Or alternatively, the elastic component is spring.

Still optionally further, the spring is cylindrical solenoid spring, tape winding spring or drum winding spring.

Specifically, the stop assembly includes the retainer for arranging in the vertical direction and support member, the supporting part Part is located at the side of the neighbouring described exhaust valve plate of the retainer, wherein the elastic component is coordinated with the support member.

Further, there is projection, the elastic component on the surface of the direction of the support member exhaust valve plate The one end away from the exhaust valve plate and the male cooperation.

Alternatively, the side away from the exhaust valve plate of the elastic component forms fluted, wherein the projection is extremely Small part stretch in the groove and with the groove fit.

Alternatively, the first passage of insertion is formed with the retainer, in the support member, insertion is formed with The reference plane of second passage, first passage and second passage in the upper surface parallel to the retainer On projection at least partly overlap.

Alternatively, the elastic component is welded with the stop assembly or bonding connection is integral.

Alternatively, the cylinder assembly includes two cylinders for arranging in the vertical direction, sets between described two cylinders There is median septum, and each described cylinder has the compression chamber.

The additional aspect and advantage of the present invention will be set forth in part in the description, and partly will become from the following description Obtain substantially, or recognized by the practice of the present invention.

Description of the drawings

The above-mentioned and/or additional aspect and advantage of the present invention will become from the description with reference to accompanying drawings below to embodiment It is substantially and easy to understand, wherein：

Fig. 1 is the profile of rotary compressor according to embodiments of the present invention, elastic component not shown in which；

Fig. 2 is the schematic diagram of the base bearing for being equipped with exhaust apparatus shown in Fig. 1；

Fig. 3 is the schematic diagram of the steam vent shown in Fig. 2；

Fig. 4 is the profile of the Y-Y lines along Fig. 3；

Fig. 5 is the partial schematic diagram of the base bearing for being equipped with exhaust apparatus shown in Fig. 1, elastic component not shown in which；

Fig. 6 is the schematic diagram of the exhaust apparatus shown in Fig. 1, elastic component not shown in which；

Fig. 7 a- Fig. 7 c are the base bearings of the exhaust apparatus of the according to embodiments of the present invention elastic component for being equipped with different structure Partial schematic diagram；

Fig. 8 a- Fig. 8 d are the partial schematic diagrams of the according to embodiments of the present invention base bearing for being equipped with exhaust apparatus, wherein The elastic component for illustrating is spring；

Fig. 9 is the schematic diagram of support member according to embodiments of the present invention；

Figure 10 a- Figure 10 d are the schematic diagrams of spring of different shapes according to embodiments of the present invention；

Figure 11 a- Figure 11 c are the schematic diagrams of spring in accordance with another embodiment of the present invention；

Figure 12 is the schematic diagram of the base bearing of the exhaust apparatus for being provided with traditional.

Reference：

Rotary compressor 100,

Seal casinghousing 2, compression mechanical part 4, cylinder 40, compression chamber 41, median septum 30, the groove of the notch 43, base bearing 50, major axis Hold 50a, base bearing flange 50b, supplementary bearing 55, short axle and hold 55a, supplementary bearing flange 55b, steam vent 15, the arrival end 13, port of export 12a, centre bore 11, gas passage chamber 12, the inwall 16 of locking groove 17, centre bore, valve seat 14, thinner wall section 19, exhaust apparatus H, Exhaust valve plate 20, retainer 22, the first passage 220, locating slot 221, support member 23, solder joint 23b, the second passage 23c, Raised 231, elastic component 21, groove 211, motor section 3, deafener 51, bent axle 60, piston 45, slide plate 46.

Specific embodiment

Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.

In describing the invention, it is to be understood that term " " center ", " horizontal ", " length ", " width ", " thickness ", " on ", D score, "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " axial direction ", " radial direction ", " circumference " etc. The orientation or position relationship of instruction is, based on orientation shown in the drawings or position relationship, to be for only for ease of the description present invention and letter Change description, rather than indicate or imply indication device or element must have specific orientation, with specific azimuth configuration and Operation, therefore be not considered as limiting the invention.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include one or more this feature.In describing the invention, unless otherwise stated, " multiple " are meant that two Individual or two or more.

In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can Being to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For this area For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.

Rotary compressor 100 according to embodiments of the present invention, rotary compressor 100 are described below with reference to Fig. 1-Figure 11 Can apply in the electrical equipment such as air conditioner, refrigerating plant or water heater.Wherein, rotary compressor 100 can be shown in Fig. 1 Single cylinder compressor.Certainly, those skilled in the art are appreciated that rotary compressor 100 can also be that twin-tub compresses Machine (not shown).

As shown in figure 1, rotary compressor 100 according to embodiments of the present invention, including cylinder assembly, base bearing 50, pair Bearing 55 and exhaust apparatus H.

Cylinder assembly includes cylinder 40, and cylinder 40 has compression chamber 41.Base bearing 50 and supplementary bearing 55 are respectively provided at cylinder The top and bottom of component.Specifically, with reference to Fig. 1, when rotary compressor 100 is single cylinder compressor, cylinder assembly is only wrapped A cylinder 40 is included, now base bearing 50 is located at the upper surface of cylinder 40, and supplementary bearing 55 is located at the lower surface of cylinder 40.Work as rotation When rotary compressor 100 is duplex cylinder compressor, cylinder assembly includes two cylinders 40 for arranging in the vertical direction, two cylinders Median septum 30 is provided between 40, and there is each cylinder 40 compression chamber 41, i.e. cylinder assembly to include upper cylinder and lower cylinder, main shaft 50 upper surfaces for being located at upper cylinder are held, and supplementary bearing 55 is located at the lower surface of lower cylinder.

The steam vent 15 connected with compression chamber 41 is formed with base bearing 50 and/or supplementary bearing 55, that is to say, that steam vent 15 can be made only on base bearing 50, it is also possible to be made only on supplementary bearing 55, or on base bearing 50 and supplementary bearing 55 It is formed with steam vent 15.

As shown in figure 4, steam vent 15 includes centre bore 11 and at least one gas passage chamber 12, gas passage chamber 12 is located at Connect on the outside of the perisporium of centre bore 11 and with centre bore 11, one end of the neighbouring compression chamber 41 of centre bore 11 constructs steam vent 15 Arrival end 13, one end away from compression chamber 41 of centre bore 11 and gas channel lumens 12 constructs the port of export of steam vent 15 12a.In short, area of the area of the arrival end 13 of steam vent 15 less than the port of export 12a of steam vent 15.For example work as base bearing When being formed with steam vent 15 on 50, the lower end of centre bore 11 constructs the arrival end 13 of steam vent 15, the upper end of centre bore 11 and The port of export 12a in the upper end jointly constructs exhaust hole 15 in gas passage chamber 12.

With reference to Fig. 3 and with reference to Fig. 1 and Fig. 2, gas passage chamber 12 is for three and evenly-spaced along the circumference of centre bore 11 Distribution.Certainly, gas passage chamber 12 can also be one, two or four etc..It is appreciated that the quantity in gas passage chamber 12 with And arrangement etc. can be according to actual requirement specific design, the present invention is not particularly limited to this.

Exhaust apparatus H includes exhaust valve plate 20, stop assembly and elastic component 21, and exhaust valve plate 20 is located in steam vent 15 And sentence positioned at arrival end 13 and open or close arrival end 13, stop assembly is located in centre bore 11 and positioned at exhaust valve plate 20 To limit the vertical displacement of exhaust valve plate 20, elastic component 21 is located at exhaust valve plate 20 and stop group for the side of neighbouring port of export 12a Between part, and elastic component 21 is coordinated with stop assembly.Specifically, the action in the horizontal direction of exhaust valve plate 20 can be subject to aerofluxuss The restriction of the inwall in hole 15, the displacement on the vertical direction of exhaust valve plate 20 can be limited by stop assembly, by aerofluxuss Elastic component 21 is set between valve block 20 and stop assembly, the operation of exhaust valve plate 20 can be caused more stable, so that rotation The aerofluxuss of rotary compressor 100 are more smooth, and the upper end and stop assembly for being additionally, since elastic component 21 coordinates, so as in rotation When formula compressor 100 runs, elastic component 21 is not likely to produce level in steam vent 15 and slides and cause elastic component 21 to wear and tear or rub Wipe the situation that resistance increases.It is understood that the lower end of elastic component 21 can be coordinated with exhaust valve plate 20, it is also possible to aerofluxuss Valve block 20 is mismatched.

Wherein, exhaust valve plate 20 can include the main part and at least one that shape is adapted with the inwall 16 of centre bore 11 Lobe, main part are located at arrival end 13 to open or close arrival end 13, and lobe is correspondingly arranged with gas passage chamber 12, convex The portion of rising is extended in corresponding gas passage chamber 12 from the periphery wall of main part.It is appreciated that the quantity of lobe can be many Individual, multiple lobe are corresponded with multiple gas passage chambers 12 and are arranged, and each lobe is extended to from the periphery wall of main part In corresponding gas passage chamber 12.Certainly, exhaust valve plate 20 can also only include main part, as shown in Figure 5.

Here, it should be noted that rotary compressor 100 also includes deafener 51, bent axle 60, piston 45 and slide plate 46 grade parts, bent axle 60 run through base bearing 50, cylinder assembly and supplementary bearing 55, be enclosed within bent axle 60 and be located at compression outside piston 45 In chamber 41, slide plate 46 is located in the vane slot of cylinder 40 and one end of slide plate 46 is mutually only supported with the outer surface of piston 45, piston 45 Number, the number of slide plate 46 it is identical with the number of compression chamber 41.Base bearing 50 and/or supplementary bearing 55 be provided with deafener 51 with Silencing cavity is constructed, for example in the example of fig. 1, deafener 51 is one and is located on base bearing 50.

When rotary compressor 100 works, the gases at high pressure after compressing in compression chamber 41 are drained in steam vent 15, aerofluxuss Valve block 20 can open steam vent 15 under the impulse force of the gases at high pressure, and gases at high pressure arrange silencing cavity behind gas passage chamber 12 It is interior.

, wherein it is desired to illustrate, the mounting means of stop assembly is should be ensured that under the impulse force of gases at high pressure, stop group Part will not be moved, and with reference to Fig. 4 and combine Fig. 5, and the inwall 16 of centre bore 11 is provided with locking groove 17, and retainer 22 is arranged on In locking groove 17.In addition, when supplementary bearing 55 is provided with exhaust apparatus H, the setting of the exhaust valve plate 20 on supplementary bearing 55 should Ensure that exhaust valve plate 20 will not drop from the arrival end 13 of steam vent 15.

Rotary compressor 100 according to embodiments of the present invention, as exhaust apparatus H includes exhaust valve plate 20, stop group Part and elastic component 21, only need to be provided for accommodating the steam vent 15 of exhaust valve plate 20, row on base bearing 50 and/or supplementary bearing 55 The shape of pore 15 is unrestricted, when exhaust valve plate 20 is opened, gases at high pressure from the arrival end 13 of exhaust valve plate 20 by A few gas passage chamber 12 branches to port of export 12a on an equal basis, as the area of port of export 12a is more than the area of arrival end 13, The resistance for discharging gas diminishes, such that it is able to reduce the overcompression loss discharged caused by gas of rotary compressor 100, together When by opening or closing steam vent 15 using exhaust valve plate 20, do not result in gas leakage, and by elastic component 21 is stopped It is against between exhaust valve plate 20 and stop assembly and one end of elastic component 21 and stop assembly is fixed, it is ensured that exhaust valve plate 20 The stationarity of up and down motion, and limit harmful play of the elastic component 21 in steam vent 15.In addition, the structure of exhaust apparatus H Simply, easily manufactured, industrial utilization is big.

The aerofluxuss dress according to first specific embodiment of the invention is described in detail referring in particular to Fig. 1-Fig. 7 a and Figure 12 Put H and the rotary compressor with which 100.

As shown in figure 1, rotary compressor 100 includes seal casinghousing 2, compression mechanical part 4 and motor section 3, compression mechanism Portion 4 is arranged on the inwall of seal casinghousing 2, and motor section 3 is located at the top of compression mechanical part 4.Compression mechanical part 4 includes：Cylinder The piston 45 of the compression chamber 41, eccentric rotary for the 40th, being formed on cylinder 40, and 45 synchronous slide of piston slide plate 46, drive live The bent axle 60 of plug 45, the base bearing 50 and supplementary bearing 55 that slidably support bent axle 60.It is formed with cylinder 40 and connects with compression chamber 41 The groove of the notch 43.

Base bearing 50 is made up of with base bearing flange 50b long bearing 50a, and supplementary bearing 55 is to hold 55a and countershaft by short axle Flange 55b compositions are held, base bearing flange 50b and supplementary bearing flange 55b is fixed on cylinder 40, while formed with cylinder 40 sealing Compression chamber 41.Exhaust apparatus H is equipped with base bearing flange 50b, deafener 51 is installed.3 quilt of compression mechanical part 4 and motor section It is fixed on the inwall of seal casinghousing 2, then, welding upper shell (figure is omitted) completes the assembling of rotary compressor 100. That is, base bearing flange 50b is provided with steam vent 15, and exhaust apparatus H is located on base bearing flange 50b.

Under normal circumstances, base bearing 50 and supplementary bearing more than 55 are using the casting of the flake graphite with excellent abrasive resistance and processability Ferrum.Using in the design of the cast iron, each hole (i.e. centre bore 11 and three gas passage chambers 12) of steam vent 15 is by milling The instruments such as knife mill out what is come.Under this situation, centre bore 11 and gas channel lumens 12 are designed as cylindrical shape and are easy for processing.But It is that the base bearing 50 and supplementary bearing more than 55 on the rotary compressor 100 of low capacity adopts powder metallurgy.Using powder metallurgy Design, due to omitting above-mentioned machining by die modeling, avoids the need for steam vent 15 for cylindrical shape, gas passage The cross sectional shape and bottom shape in chamber 12 can select various shapes.In addition, being to lead in embodiment as shown in Figure 1 Exhaust apparatus H is configured with bearing 50, but is worth being understood by, rotary compressor 100 according to embodiments of the present invention Exhaust apparatus H can be equipped with supplementary bearing 55.

The gases at high pressure compressed in compression chamber 41, then are expelled to from exhaust apparatus H from the groove of the notch 43 through steam vent 15 Deafener 51.Hereafter, freezing cycle device is expelled to from exhaustor (figure is omitted).Therefore, seal casinghousing 2 in the embodiment Internal pressure is high-pressure side.

As shown in Fig. 2 steam vent 15 includes centre bore 11 and three gas passage chambers 12, three gas passage chambers 12 are in The circumferentially-spaced distribution in heart hole 11, and each gas passage chamber 12 connected with centre bore 11, the lower end of centre bore 11 limits The upper end in gateway end 13, the upper end of centre bore 11 and three gas passage chambers 12 limits port of export 12a.

Steam vent 15 is the chamber processed on base bearing flange 50b, is provided with the bottom of centre bore 11 and connects with compression chamber 41 Logical arrival end 13, is provided with valve seat 14 (as shown in Figure 4 and Figure 5) at the arrival end 13 of centre bore 11, with reference to Fig. 3,14 shape of valve seat Become circular, therefore, thinner wall section 19, exhaust valve plate 20 are formed between the inwall 16 of the outer wall and centre bore 11 of valve seat 14 On valve seat 14, stop assembly is located at the top of exhaust valve plate 20, and in locking groove 17, thus stop assembly is assemblied in, embedding for support Enter the stop assembly in locking groove 17, the actuating range for both having defined the up and down motion of exhaust valve plate 20 (defines exhaust valve plate 20 stroke), also play the effect (playing a part of stop) limited to the action of exhaust valve plate 20.As ginseng Examine, in Fig. 2, show the position relationship between slide plate 46 and exhaust apparatus H, the arrow in Fig. 2 shown in R is the operating of bent axle 60 Direction.

When rotary compressor 100 runs, the gases at high pressure discharged from steam vent 15, the exhaust valve plate 20 from after floating Downside branch to the port of export 12a of steam vent 15 on an equal basis, from the upper end opening portion runner deafener in each gas passage chamber 12 In 51.In terms of the flowing of gases at high pressure, due to the gross area of the port of export 12a and gas channel lumens 12 of steam vent 15 it is enough Greatly, so the resistance for discharging gas becomes very little, therefore, it can discharging caused by gas for reduction rotary compressor 100 Overcompression is lost.

As shown in Figure 7a, in the present embodiment, stop assembly only includes retainer 22, retainer 22 and exhaust valve plate 20 it Between be provided with elastic component 21, elastic component 21 is made up of elastomeric material, and such as elastic component 21 can be a flexure strip, the flexure strip Thickness be substantially equal to and be installed in place the distance between the upper surface of heel row air valve plate 20 and lower surface of retainer 22, which is hit by a bullet Property piece can be fixed by bonding mode with retainer 22.Thus, by elastic component 21 is directly anchored to retainer On 22, the motion of the horizontal direction of elastic component 21 is limited, it is to avoid the abrasion and the increase of frictional resistance of elastic component 21, so as to Ensure that the gases at high pressure in compression chamber 41 smoothly can be discharged, and extend the service life of elastic component 21.

Traditional air bleeding valve is as shown in figure 12, due to being to be similar to rectangular Reed Valve (25), so discharging the side of gas To the free end (first side) of mainly flap valve.As the exhaust valve plate 20 of the embodiment of the present invention is non-tongue shape shape, and Possess multiple gas passage chambers 12, so discharging gas is characterized in that fifty-fifty comprehensive shunting.Therefore, according to present invention enforcement The rotary compressor 100 of example has the effect for reducing overcompression loss.

In addition, as shown in figure 12, corresponding thinner wall section (19) scope of Reed Valve (25) is larger, also, the thinner wall section (19) Have with the internal diameter of compression chamber (41) Chong Die.As a result, thinner wall section (19) can not only reduce bearing rigidity, simultaneously because thin-walled The pressure reduction up and down in portion (19), thinner wall section (19) can be deformed in compression chamber (41), so which must be increased with piston (45) Between glade plane space, will so cause gas leakage increase so that compressor efficiency reduce.And the application present invention is real The exhaust apparatus H of example is applied, these problems will all be resolved.That is, rotary compressor according to embodiments of the present invention 100, gas leakage can be reduced, the efficiency of compressor is improve.

Exhaust apparatus H and the rotation with which according to second specific embodiment of the invention is described in detail below with reference to Fig. 7 b Rotary compressor 100.

As shown in Figure 7b, in the present embodiment, stop assembly equally only includes retainer 22, retainer 22 and exhaust valve plate Elastic component 21 is provided between 20, elastic component 21 is made up of elastomeric material, such as elastic component 21 can include being stacked up and down forming Multiple flexure strips, the thickness of this multiple flexure strip is substantially equal to and is installed in place the upper surface of heel row air valve plate 20 and retainer 22 The distance between lower surface, wherein the flexure strip of the top can be fixed by bonding mode with retainer 22.

In this embodiment, the other structures of rotary compressor 100 and the rotation according to first embodiment of the invention The structure of formula compressor 100 is identical, here just not repeated description.

Below with reference to Fig. 7 c and Fig. 9 detailed description is according to the exhaust apparatus H of the 3rd specific embodiment of the invention and has Its rotary compressor 100.

As shown in Figure 7 c, stop assembly includes the retainer 22 for arranging in the vertical direction and support member 23, supporting part Part 23 is located at the side (for example, the downside in Fig. 7) of the neighbouring exhaust valve plate 20 of retainer 22, that is to say, that support member 23 Positioned at the lower section of retainer 22, now support member 23 is located between retainer 22 and elastic component 21, and wherein elastic component 21 is fixed In support member 23, specifically, there are on the lower surface of support member 23 downwardly projecting projection 231, raised 231 preferred positions In the middle part of the lower surface of support member 23, the upper end of elastic component 21 is fixed on raised 231, is such as formed with elastic component 21 The groove 211 being downwardly concaved, raised 231 are extending at least partially in groove 211 and are fixed with groove 211, i.e., raised 231 extremely A part of periphery wall is fixed with the internal perisporium of groove 211 less, when raised 231 parts stretched in groove 211 are shorter, Ke Yijie Raised 231 material is saved, here, raised 231 can be solid to carry out using modes such as bonding, welding or interference fit with groove 211 It is fixed.Thus, by elastic component 21 is fixed in support member 23, the motion of the horizontal direction of support member 23 is limited, is kept away Exempt from the abrasion of elastomer and the increase of frictional resistance, so as to the gases at high pressure that ensure that in compression chamber 41 smoothly can be discharged, And extend the service life of elastomer.It is appreciated that raised 231 concrete set locations in support member 23 and with it is recessed The fixed form of groove 211 can be according to actual requirement specific design, and the present invention is not particularly limited to this.

Wherein, with reference to Fig. 7 and Fig. 2 is combined, on retainer 22, is formed with the first passage 220 of insertion, the first passage 220 centers for being formed in retainer 22, the gases at high pressure so discharged from the arrival end 13 of steam vent 15 are except by center Outside gas passage chamber 12 on the outside of hole 11 is flowed out, the first passage 220 that can also pass through on retainer 22 flows out, so as to improve The exhaust efficiency of rotary compressor 100.

The second passage 23c of insertion is formed with support member 23, the first passage 220 and the second passage 23c exist At least partly overlap parallel to the projection in the reference plane of the upper surface of retainer 22.For example show in the example of figure 9 Four the second passage 23c, four the second passage 23c uniform intervals distributions in the circumference of support member 23, the first ventilation The projected area of hole 220 and four the second passage 23c in above-mentioned reference plane is preferably equal to four the second passage 23c's Area sum, flow to after can passing sequentially through four the second passage 23c, the first passage 220 so as to more gases at high pressure Noise reduction intracavity, is additionally, since the first passage 220 and the second passage 23c ensure that the discharge of gases at high pressure, so as to first is logical The setting of pore 220 and the second passage 23c facilitates exhaust valve plate 20 and delicately moves up and down.It is appreciated that the first ventilation The quantity of hole 220 and the second passage 23c, shape and arrangement etc. can be according to different types of rotary compressors 100 and adaptive change, the present invention this is not especially limited.

In this embodiment, the other structures of rotary compressor 100 and the rotation according to first embodiment of the invention The structure of formula compressor 100 is identical, here just not repeated description.

The exhaust apparatus H according to the 4th specific embodiment of the invention is described in detail below with reference to Fig. 8 a, Figure 10 and Figure 11 And the rotary compressor 100 with which.

As shown in Fig. 8 a and Figure 10 a, in the present embodiment, elastic component 21 is spring coil bullet for example linearly or nonlinearly Spring, specifically, elastic component 21 is tape winding spring such as copl spring, and the shape of cross section of the spring is circle, And the lateral dimension of the upper end of the spring is more than the lateral dimension of its lower end, during installation, first the spring in Figure 10 a is inverted, so Afterwards the upper end of the spring is directly anchored on retainer 22, such as spring can be welding (such as spring with retainer 22 Upper end can be connected by solder joint 23b shown in Fig. 8 a) or the mode such as bonding link into an integrated entity.Certainly, when elastic component 21 is During tape winding spring, the shape of cross section of tape winding spring can also be ellipse etc..

During compressor operating, exhaust valve plate 20 moves up and down, although the action in the horizontal direction of exhaust valve plate 20 and spring There is the restriction of inwall, but if spring is not fixed, level slip still can be produced in inwall, the mill of spring is caused The increase of damage and frictional resistance.Therefore, spring is fixed on retainer 22 in the present embodiment.

Here, it should be noted that spring can also be cylindrical solenoid spring such as cylindrical wires coil spring or cydariform line Coil spring etc., specifically, as shown in fig. lob, the shape of cross section of cylindrical wires coil spring is for circle and along the horizontal chi in its axial direction It is very little to keep constant.As shown in figure l oc, the drum winding spring lateral dimension in its axial direction first reduces, increases afterwards (i.e. Be formed as the less cydariform of internal diameter of centre).As shown in fig. 10d, the drum winding spring in its axial direction horizontal Size first increases, reduces (being formed as the larger cydariform of the internal diameter of centre) afterwards.

Preferably, it is nonlinear coil spring shown in Figure 11, is shaped like mosquito incense, when the spring is compressed completely When, coil is located in approximately the same plane.Therefore the spring does not interfere with the stroke of exhaust valve plate 20.

In this embodiment, the other structures of rotary compressor 100 and the rotation according to first embodiment of the invention The structure of formula compressor 100 is identical, here just not repeated description.

Exhaust apparatus H and the rotation with which according to the 5th specific embodiment of the invention is described in detail below with reference to Fig. 8 b Rotary compressor 100.

In the present embodiment, locating slot 221 is formed with a side surface of the neighbouring exhaust valve plate 20 of stop assembly, elasticity The one end fits away from exhaust valve plate of part 21 are in locating slot 221.As shown in Figure 8 b, elastic component 21 is that spring is for example conical Coil spring, when stop assembly only includes retainer 22, is formed with upwardly recessed locating slot on the lower surface of retainer 22 221, the upper end of spring coordinates in locating slot 221, and the upper end of such as spring can be directly placed in locating slot 221, so as to bullet The upper end of spring is positioned in locating slot 221 without side-to-side movement, or the upper end of spring can also with locating slot 221 in Wall interference fit so that spring is fixed in locating slot 221, now spring relative to retainer 22 be it is fixed, thus, Further avoid spring horizontal motion and the situation that abrasion and frictional resistance increase occur.

In this embodiment, the other structures of rotary compressor 100 and the rotation according to four embodiment of the invention The structure of formula compressor 100 is identical, here just not repeated description.

Exhaust apparatus H and the rotation with which according to the 6th specific embodiment of the invention is described in detail below with reference to Fig. 8 c Rotary compressor 100.

As shown in Figure 8 c, in the present embodiment, elastic component 21 be spring such as copl spring, the spring it is transversal Face is generally circular in shape, and the lateral dimension of the upper end of the spring is less than the lateral dimension of its lower end, during installation, can be by the spring Upper end be set in the projection 231 of support member 23, the upper end of such as spring is fastened in the projection 231 of support member 23, Certainly, with the projection 231 of support member 23, the upper end of spring can also be that the modes such as welding, bonding or interference fit connect into one Body.

In this embodiment, the other structures of rotary compressor 100 and the rotation according to four embodiment of the invention The structure of formula compressor 100 is identical, here just not repeated description.

Exhaust apparatus H and the rotation with which according to the 7th specific embodiment of the invention is described in detail below with reference to Fig. 8 d Rotary compressor 100.

As shown in figure 8d, in the present embodiment, support member 23 is one piece of horizontal-extending flat board, and elastic component 21 is bullet Spring, the spring shown in Fig. 8 b are copl spring, and its upper end is connected directly between on the lower surface of above-mentioned flat board, such as bullet The upper end of spring can pass through the solder joint 23b connections shown in Fig. 8 d.

In this embodiment, the other structures of rotary compressor 100 and the rotation according to sixth embodiment of the invention The structure of formula compressor 100 is identical, here just not repeated description.

According to first specific embodiment of the invention, into the 7th specific embodiment, announcement is all with regard to capsul The pressure of body 2 is on high-tension side rotary compressor 100, but is worth being understood by, and the pressure of seal casinghousing 2 is the rotation of low-pressure side Rotary compressor 100 may also be employed above-mentioned technology, that is to say, that rotary compressor 100 according to embodiments of the present invention it is close Pressure in capsule body 2 can also be able to be high-pressure side for low-pressure side.It is when the pressure of seal casinghousing 2 is low-pressure side, and conventional Low pressure rotary compressor 100 as, deafener 51 needs to be sealed against only gas and leak in seal casinghousing 2.When So also it is worth being understood by, rotary compressor 100 according to embodiments of the present invention can also be swing rotary compressor.

Thus, rotary compressor 100 according to embodiments of the present invention, can play reduces the effect of overcompression loss, And the operational efficiency of rotary compressor 100, reliability and production efficiency are improved, while row according to embodiments of the present invention The simple structure of device of air H, it is simple to manufacture, industrial utilization is big.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", " example ", " specific example ", or the description of " some examples " etc. mean specific features, the knot described with reference to the embodiment or example Structure, material or feature are contained at least one embodiment or example of the present invention.In this manual, to above-mentioned term Schematic representation is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or spy Point can be combined in one or more any embodiment or example in an appropriate manner.

Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not These embodiments can be carried out with various changes, modification, replacement and modification in the case of the principle and objective that depart from the present invention, this The scope of invention is limited by claim and its equivalent.

Claims (9)

1. a kind of rotary compressor, it is characterised in that include：

Cylinder assembly, the cylinder assembly include cylinder, and the cylinder has compression chamber；

Base bearing and supplementary bearing, the base bearing and supplementary bearing are respectively provided at the top and bottom of the cylinder assembly, the master It is formed with the steam vent connected with the compression chamber on bearing and/or the supplementary bearing, the steam vent includes centre bore and extremely A few gas passage chamber, the gas passage chamber are located on the outside of the perisporium of the centre bore and are connected with the centre bore, institute The one end for stating the neighbouring described compression chamber of centre bore constructs the arrival end of the steam vent, and the centre bore and the gas are logical The one end away from the compression chamber in road chamber constructs the port of export of the steam vent；And

Exhaust apparatus, the exhaust apparatus include exhaust valve plate, stop assembly and elastic component, and the exhaust valve plate is located at described Sentence in steam vent and positioned at the arrival end and open or close the arrival end, the stop assembly is located in the centre bore And positioned at the exhaust valve plate the neighbouring described port of export side limiting the vertical displacement of the exhaust valve plate, the elasticity Part is located between the exhaust valve plate and the stop assembly and is coordinated with the stop assembly,

The stop assembly includes the retainer for arranging in the vertical direction and support member, and the support member is located at described stopping The side of the neighbouring described exhaust valve plate of moving part, wherein the elastic component is coordinated with the support member, shape on the retainer Into the first passage for having insertion, the second passage of insertion, first passage and institute in the support member, are formed with State projection of second passage in the reference plane of the upper surface parallel to the retainer at least partly to overlap.

2. rotary compressor according to claim 1, it is characterised in that the neighbouring described air bleeding valve of the stop assembly Locating slot is formed with one side surface of piece, the one end fits away from the exhaust valve plate of the elastic component are in the locating slot It is interior.

3. rotary compressor according to claim 1 and 2, it is characterised in that the elastic component includes one or more Flexure strip.

4. rotary compressor according to claim 1 and 2, it is characterised in that the elastic component is spring.

5. rotary compressor according to claim 4, it is characterised in that the spring is cylindrical solenoid spring, taper Coil spring or drum winding spring.

6. rotary compressor according to claim 1, it is characterised in that the direction air bleeding valve of the support member There is on the surface of piece projection, the one end away from the exhaust valve plate and the male cooperation of the elastic component.

7. rotary compressor according to claim 6, it is characterised in that the elastic component away from the exhaust valve plate Side form fluted, wherein it is described it is raised be extending at least partially in the groove and with the groove fit.

8. rotary compressor according to claim 1, it is characterised in that the elastic component is welded with the stop assembly Or bonding connection is integral.

9. rotary compressor according to claim 1, it is characterised in that the cylinder assembly is included in the vertical direction Two cylinders for arranging, are provided with median septum, and each described cylinder have the compression chamber between described two cylinders.