CN104196729B - Electrodynamic type compressor and the refrigerating circulatory device with it - Google Patents
Electrodynamic type compressor and the refrigerating circulatory device with it Download PDFInfo
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- CN104196729B CN104196729B CN201410453629.1A CN201410453629A CN104196729B CN 104196729 B CN104196729 B CN 104196729B CN 201410453629 A CN201410453629 A CN 201410453629A CN 104196729 B CN104196729 B CN 104196729B
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Abstract
The invention discloses a kind of electrodynamic type compressor and the refrigerating circulatory device with it.Electrodynamic type compressor includes：Cylinder assembly, piston, base bearing, supplementary bearing and exhaust apparatus.Base bearing and/or supplementary bearing are located at the outside of center cavity and connects with center cavity provided with center cavity and at least one periphery chamber, periphery chamber, center cavity towards compression chamber one end provided with steam vent.Exhaust apparatus includes air bleeding valve and limiter, air bleeding valve is movably arranged in center cavity to open or close steam vent, multiple gas passages are limited between the periphery wall of air bleeding valve and the internal perisporium of center cavity, limiter is located at the side of the remote compression chamber in center cavity and positioned at air bleeding valve to limit the displacement of air bleeding valve.Electrodynamic type compressor according to embodiments of the present invention, adds the aisle spare of exhaust, air resistance loss is reduced, so as to improve compressor efficiency.
Description
Technical field
The present invention relates to refrigerating field, more particularly, to a kind of electrodynamic type compressor and the refrigerating circulatory device with it.
Background technology
As shown in Figure 11, the area of the valve accommodating groove 19 of the tongue type air bleeding valve 25 in correlation technique is big, and its bottom surface is thin, institute
With the rigidity reduction of the bearing flange or valve block plate that constitute compression chamber, compression chamber deformation increase.Therefore, because gas leakage increases
Plus cause compression efficiency to reduce.Although being disclosed in correlation technique in order to solve the above problems due to being moved above and below exhaust, air bleeding valve
The free valve of work.But, the aisle spare of exhaust is smaller, so, air resistance loss increase, compressor efficiency declines.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.
Therefore, it is an object of the present invention to propose a kind of electrodynamic type compressor, adding the aisle spare of exhaust, subtracting
Air resistance loss is lacked.
It is another object of the present invention to propose a kind of refrigerating circulatory device with above-mentioned electrodynamic type compressor.
Electrodynamic type compressor according to embodiments of the present invention, including：Cylinder assembly, the cylinder assembly includes having compression
The cylinder of chamber；Piston, the piston is rotatably arranged in the compression chamber；Base bearing and supplementary bearing, the base bearing and institute
Upper surface and lower surface that supplementary bearing is respectively provided at the cylinder assembly are stated, the base bearing and/or the supplementary bearing are provided with
Center cavity and at least one periphery chamber, the periphery chamber is located at the outside of the center cavity and connected with the center cavity, described
Described compression chamber one end of direction of center cavity is provided with steam vent；Exhaust apparatus, the exhaust apparatus includes air bleeding valve and limiter,
The air bleeding valve is movably arranged in the center cavity to open or close the steam vent, the periphery wall of the air bleeding valve with
Multiple gas passages are limited between the internal perisporium of the center cavity, the limiter is located in the center cavity and positioned at described
The side of the remote compression chamber of air bleeding valve is to limit the displacement of the air bleeding valve.
Electrodynamic type compressor according to embodiments of the present invention, by provided with multiple gas passages, adding the passage of exhaust
Area, reduces air resistance loss, so as to improve compressor efficiency.
In addition, electrodynamic type compressor according to the above embodiment of the present invention can also have technical characteristic additional as follows：
In some embodiments of the invention, the cross-sectional area of the center cavity is formed as circular, and the air bleeding valve includes
The jut that multiple uniform intervals are set, the internal perisporium of the periphery wall and the center cavity of each jut is slidably matched,
A gas passage is limited between two adjacent juts and the internal perisporium of the center cavity.
In other embodiments of the present invention, the cross section of the center cavity is formed as regular polygon, the air bleeding valve
Be formed as disc, limited between two often connected sides of the center cavity and the periphery wall of the air bleeding valve described in one
Gas passage.
In a particular embodiment of the present invention, the periphery chamber is multiple and around the center cavity circumferentially-spaced distributions.
In further embodiment of the present invention, the cross-sectional area of at least one periphery chamber in the multiple periphery chamber
It is different from the cross-sectional area of periphery chamber other described, wherein, in the process of the piston rotation, when the piston rotation blocks institute
State steam vent and cause the steam vent aperture area it is minimum when, maximum described of cross-sectional area in the multiple periphery chamber
Periphery chamber is closest with the aperture position of the steam vent.
In a preferred embodiment of the invention, the cross-sectional area summation of the periphery chamber is more than the area of the steam vent.
According to some embodiments of the present invention, from the end of the remote compression chamber of the center cavity to the base bearing
And/or provided with annular inclined plane between the end face of the remote compression chamber of the supplementary bearing, the annular inclined plane exists
Side from the end face to the compression chamber is tilted upwardly toward the direction at the center of center cavity to be extended, the outlet of the periphery chamber
In the inclined plane of annular.
According to some embodiments of the present invention, the exhaust apparatus also includes coil spring, the two ends of the coil spring
Only it is against between the limiter and the air bleeding valve often to drive steam vent described in the exhaust valve closure.
Alternatively, the coil spring is Hookean spring or nonlinear spring.
Refrigerating circulatory device according to embodiments of the present invention, including electrodynamic type according to the above embodiment of the present invention compression
Machine.
Refrigerating circulatory device according to embodiments of the present invention, by provided with above-mentioned electrodynamic type compressor, so as to reduce
Air resistance loses, and improves compressor efficiency.
Brief description of the drawings
Fig. 1 is the sectional view of rotary compression mechanism section in embodiments of the invention 1, represents the summary of exhaust apparatus；
In Fig. 2 be the same as Examples 1, the plan of the valve pocket summary of the exhaust apparatus configured in base bearing flange portion is represented；
In Fig. 3 be the same as Examples 1, the plan and sectional view of the details of valve pocket are represented；
In Fig. 4 be the same as Examples 1, the component figure for representing the completion sectional view of exhaust apparatus and wherein assembling；
In Fig. 5 be the same as Examples 1, represent to discharge the sectional view of the gas flowing of exhaust apparatus from compression chamber；
Fig. 6 represents possess the air bleeding valve of gas passage with embodiments of the invention 2；
In Fig. 7 be the same as Examples 2, the plan of air bleeding valve assembled in valve pocket is represented；
Fig. 8 represents the plan and sectional view of valve pocket design with embodiments of the invention 3；
Sectional views of the Fig. 9 with the gas flowing in embodiments of the invention 3, representing to be vented from compression chamber to exhaust apparatus；
Figure 10 represents the plan of valve pocket design with embodiments of the invention 4；
Figure 11 is conventional cases of design, represents possess the plan of the base bearing of tongue type valve.
Reference：
Electrodynamic type compressor 1, housing 2, motor section 3,
Compression mechanical part 4, cylinder 40, compression chamber 41, piston 45, eccentric shaft 60, base bearing 50, long bearing 50a, base bearing
Flange 50b, supplementary bearing 55, short axle hold 55a, supplementary bearing flange 55b, exhaust silencer 51,
Exhaust apparatus 10, steam vent 13, center cavity 12, periphery chamber 16, valve pocket 11, valve seat 14, locking groove 15, slide plate 46,
Gas passage 16a, non-cutting portion 16b, valve seat outer peripheral face 12a, inclined plane 18,
Air bleeding valve 20 (22), coil spring 35, limiter 30, jut 22a, bending section 22b.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
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, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, 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 the description of the invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
Electrodynamic type compressor 1 according to embodiments of the present invention, the wherein electrodynamic type are described in detail below with reference to Fig. 1-Figure 10
Compressor 1 includes rotary compressor, screw compressor and reciprocating compressor.Rotary compressor includes rolling-rotor pressure
Contracting machine, slide vane compressor or oscillating compressor.Electrodynamic type compressor 1 according to embodiments of the present invention can be applied to be followed in refrigeration
In loop device, for example, apply in air-conditioning device, refrigerating plant or water heater.
Electrodynamic type compressor 1 according to embodiments of the present invention, including：Cylinder assembly, piston 45, base bearing 50, supplementary bearing
55 and exhaust apparatus 10.Wherein, cylinder assembly includes the cylinder 40 with compression chamber 41.When electrodynamic type compressor 1 is single cylinder pressure
During contracting machine, cylinder assembly includes a cylinder 40.When electrodynamic type compressor 1 is duplex cylinder compressor, cylinder assembly includes two
Cylinder 40 and the median septum being located between two cylinders 40.
Piston 45 is rotatably arranged in compression chamber 41.Base bearing 50 and supplementary bearing 55 are respectively provided at the upper end of cylinder assembly
Face and lower surface, base bearing 50 and/or supplementary bearing 55 are located at provided with center cavity 12 and at least one periphery chamber 16, periphery chamber 16
The outside of center cavity 12 and connected with center cavity 12, center cavity 12 towards the one end of compression chamber 41 is provided with steam vent 13, center cavity
The valve seat 14 of annular is additionally provided with 12, valve seat 14 is set around steam vent 13.Preferably, the cross-sectional area summation of periphery chamber 16 is big
In the area of steam vent 13, so as to further reduce air resistance loss.It is highly preferred that the cross-sectional area of periphery chamber 16 is total
With the ratio with the area of steam vent 13 in the range of 1~4.
Exhaust apparatus 10 includes air bleeding valve 20 (22) and limiter 30, air bleeding valve 20 be movably arranged at center cavity 12 it is interior with
Steam vent 13 is opened or closed, multiple gas passages are limited between the periphery wall of air bleeding valve 20 and the internal perisporium of center cavity 12
16a, limiter 30 is located at the side of the remote compression chamber 41 in center cavity 12 and positioned at air bleeding valve 20 to limit air bleeding valve 20
Displacement.Specifically, air bleeding valve 20 is placed on valve seat 14 to be located in center cavity 12.Wherein it is understood that when exhaust dress
When putting 10 and being located on supplementary bearing 55, the setting of air bleeding valve 20 should be ensured that air bleeding valve 20 is not fallen out when closing steam vent 13.
Need to illustrate, electrodynamic type compressor 1 also includes the grade element of exhaust silencer 51, exhaust silencer 51 is set
On base bearing 50.
Under the gases at high pressure compressed effect in compression chamber 41, air bleeding valve 20 floats with the row of opening at steam vent 13
Stomata 13, gases at high pressure are drained into center cavity 12 by steam vent 13, and wherein the part in gases at high pressure is logical by gas
Road 16a is drained into exhaust silencer 51, and another part gases at high pressure are drained into exhaust silencer 51 by periphery chamber 16.
Electrodynamic type compressor 1 according to embodiments of the present invention, by provided with multiple gas passage 16a, adding exhaust
Aisle spare, reduces air resistance loss, so as to improve compressor efficiency.
In some embodiments of the invention, as shown in Figure 6 and Figure 7, the cross-sectional area of center cavity 12 is formed as circular, row
Air valve 22 includes the jut 22a that multiple uniform intervals are set, each jut 22a periphery wall and the internal perisporium of center cavity 12
It is slidably matched, a gas passage 16a is limited between two adjacent jut 22a and the internal perisporium of center cavity 12.It is preferred that
Ground, jut 22a number is 3 or 4.
In other embodiments of the present invention, the cross section of center cavity 12 is formed as regular polygon, and air bleeding valve 20 is formed
For disc, a gas passage 16a is limited between two often connected sides of center cavity 12 and the periphery wall of air bleeding valve 20.
Specifically, the contact of the periphery wall of air bleeding valve 20 and each edge of center cavity 12 is located at the center of the corresponding edge of center cavity 12, outside
All chambers 16 will not center cavity 12 each edge center drilling.Preferentially, regular polygon is equilateral triangle, square, positive five
Side shape or regular hexagon.
According in some embodiments of the present invention, periphery chamber 16 is multiple and around center cavity 12 circumferentially-spaced distributions.
In Fig. 3 example, periphery chamber 16 is 10, in Figure 10 example, and periphery chamber 16 is 8, and wherein periphery chamber 16 is individual several
It is defined, is just not specifically limited here according to actual conditions.
As shown in figure 8, in further embodiment of the present invention, at least one periphery chamber 16 in multiple periphery chambers 16
Cross-sectional area it is different from the cross-sectional area of other periphery chambers 16, wherein, piston 45 rotate process, when piston 45 rotate hide
When keeping off steam vent 13 and causing the aperture area minimum of steam vent 13, the periphery chamber of the cross-sectional area maximum in multiple periphery chambers 16
16 is closest with the aperture position of steam vent 13.In the example of fig. 8, the cross-sectional area of periphery chamber 16 by periphery chamber 161,
162nd, 163,164 order gradually increases, and the cross-sectional area of periphery chamber 164 is maximum.In the rotation process of piston 45, steam vent 13
Aperture area can change, as shown in figure 5, now the aperture area of steam vent 13 is larger, the gas discharged from steam vent 13
Body is assigned in multiple periphery chambers 16.As shown in figure 9, now the aperture area of steam vent 13 is smaller, discharged from steam vent 13
Gas is mainly flowed into the maximum periphery chamber 16 of cross-sectional area, so as to ensure that exhaust passage is larger, reduces exhaust resistance.
As shown in Fig. 1, Fig. 3-Fig. 5, Fig. 9, in some embodiments of the invention, from the remote compression chamber 41 of center cavity 12
End between the end face of base bearing 50 and/or the remote compression chamber 41 of supplementary bearing 55 provided with annular inclined plane 18, annular
Inclined plane 18 from end face to compression chamber 41 side upwardly toward center cavity 12 center direction tilt extend, periphery chamber 16
Outlet positioned at annular inclined plane 18 on.So as to which by the inclined plane 18 provided with annular, each periphery chamber 16 can be increased
Aperture area, relaxes from periphery chamber 16 to the air-flow of exhaust silencer 51, therefore can not only reduce the resistance damage of exhaust gas
Lose, the noise produced during to 51 jet exhaust gas of exhaust silencer can also be reduced.
In some embodiments of the invention, as shown in Figure 4 and Figure 5, exhaust apparatus 10 also includes coil spring 35, coil
The two ends of spring 35, which are stopped, to be against between limiter 30 and air bleeding valve 20 often to drive air bleeding valve 20 to close steam vent 13.So as to pass through
Provided with coil spring 35, waving for air bleeding valve 20 can be relaxed.Alternatively, coil spring 35 is Hookean spring or nonlinear elasticity
Spring.
Refrigerating circulatory device according to embodiments of the present invention, including electrodynamic type compressor according to the above embodiment of the present invention
1, so as to reduce air resistance loss, improve compressor efficiency.
The electrodynamic type compressor according to four specific embodiments of the invention is described below with reference to Fig. 1-Figure 11.
Embodiment 1：
Embodiment 1 is the case that exhaust apparatus of the invention is used on rotary compressor.The design form including
It is general in the motor compressor of rotary compressor.
In Fig. 1, rotary compressor 1 is by the compression mechanical part 4 being fixed on the internal diameter of housing 2, the motor of its top configuration
Portion 3 is constituted.Compression mechanical part 4 possesses：In the compression chamber 41 constituted in cylinder 40, the cylinder carry out eccentric operating piston 45,
The eccentric shaft 60 of eccentric drive is carried out with the reciprocating slide plate of the piston synchronous (not shown), to piston 45, eccentric shaft is entered
Base bearing 50 and supplementary bearing 55 that line slip is supported.
Base bearing 50 and supplementary bearing 55,55a and supplementary bearing method held by long bearing 50a and base bearing flange 50b, short axle respectively
Blue 55b compositions.Base bearing flange 50b and supplementary bearing flange 55b are fixed in cylinder 40, together form sealedly with cylinder 40
Compression chamber 41.Exhaust apparatus 10, the one side or both that can be only fitted to base bearing flange 50b or supplementary bearing flange 55b, it is real
Apply example 1 exhaust apparatus 10, its top are configured with base bearing flange 50b and be mounted with exhaust silencer 51.
The gases at high pressure compressed in compression chamber 41 are diverted to center cavity by the steam vent 13 being open to compression chamber 41
It is discharged in the periphery chamber 16 of 12 openings in exhaust silencer 51.Thereafter, discharged from blast pipe (not shown) to refrigerating plant.Cause
This, the internal pressure of housing 2 is high pressure.
Before explanation exhaust apparatus 10, first, the component parts of exhaust apparatus 10 is illustrated.
Fig. 2 is the plan of the base bearing flange 50b after processing.The valve pocket 11 that possesses in base bearing flange 50b, at center
The bottom centre of chamber 12 along steam vent 13, valve seat 14, center cavity 12 inner circumferential configuration 10 periphery chambers 16 and by these
The upper end open face of the chambers of the heart 12 and periphery chamber 16 carries out the inclined-plane composition of the chamfer machining of cone.In addition, having in center cavity 12
For circular locking groove 15 (shown in Fig. 3).
Here, center cavity 12 and periphery chamber 16 are cylindrical type, as be described hereinafter, even if the cross sectional shape of center cavity 12 is just polygon
Shape can also.In addition, periphery chamber 16 be gas passage just can be to be not necessarily intended to cylinder.As reference, Fig. 2 is in compression chamber
41 internal diameter and the position of slide plate 46 are represented with dotted line (---).
Fig. 3 is the plan and its sectional view (Section X-X) of valve pocket 11.Configure outside 10 of the outside of center cavity 12
All chambers 16, the gas passage 16a for possessing the respective inner circumferential opening to center cavity 12.Gas passage 16a is discharged from steam vent 13
Gases at high pressure exhaust passage.On the other hand, the 10 non-cutting portions surrounded by respective gas passage 16a and center cavity 12
16b is formed.The locking groove 15 possessed in the inner circumferential of center cavity 12 is the circumferential groove of the fixed limiter 30 (Fig. 4) of insertion.
The volume of steam vent 13 is exhaust clearance volume, wherein the gases at high pressure remained lose as reflation.Therefore, arrange
The height of stomata 13 is necessary to reduce.Due to the design requirement, the valve seat formed between the inner circumferential of valve seat 14 and center cavity 12
Outer peripheral face 12a wall thickness (C) is most thin, usually 1.5~2.0mm.
The present invention is using the free valve without fixed part in valve pocket 11, so the valve seat outer peripheral face 12a area of plane is with making
With the exhaust apparatus of conventional tongue type valve compared to much smaller.Moreover, surrounded around valve seat outer peripheral face 12a by non-cutting portion 16b,
Strengthen.That is, around valve pocket 11 non-cutting portion 16b total measurement (volume), the appearance with subtracting periphery chamber 16 from inclined plane 18 substantially
Product is suitable.
Like this, it is still not small-sized using the valve pocket 11 of free valve, and together form with the configuration of periphery chamber 16 non-
Cutting portion 16b increases the rigidity of valve pocket 11, and this is also an object of the present invention.That is, by possessing the base bearing of valve pocket 11
Flange 50b rigidity lifting, improves the internal modification of compression chamber 11.Moreover, passing through rigidity lifting steam vent 13 and air bleeding valve
The noise that 20 (Fig. 4) are produced can reduce.Here, inclined plane 18 can reduce the passage length (groove of periphery chamber of periphery chamber 16
Deeply), the pressure loss of reduction exhaust.But, if base bearing flange 50b thinner thickness, inclined plane 18 can also be omitted.
The exhaust apparatus 10 completed in Fig. 4, expression base bearing flange 50b and these general assembly components.General assembly component, from
Lower beginning is air bleeding valve 20, coil spring 35, limiter 30 in order.Air bleeding valve 20 is the circle that thickness of slab is 0.2~0.3mm or so
Plate.There was only very little gap between the external diameter of air bleeding valve 20 and the internal diameter of center cavity 12, such as between 20~200 μm or so of slip
Gap, so the centre of center cavity 12 can sleekly be moved up and down.
Coil spring 35 is the compression spring that line footpath is 0.2~0.5mm, and cylinder, circular cone, inverse circular cone, cydariform etc. are relatively more suitable
With.In addition, in addition to line style spring, also using non-linear spring, being directly proportional to the floating length of center cavity 12, increase spring is normal
Number is also what is be highly profitable.Limiter 30 has the C-shaped clamp spring of opening portion for center.In addition, as limiter, can also use it is thin
Bushing nut etc..Other coil spring 35 and limiter 30 can have various designs according to the purport of the present invention, so without
It is limited in the range of described above.
As reference, the cases of design of the rotary compressor to being carried in domestic air conditioner (1HP) is illustrated.Center
The internal diameter of chamber 12 and the external diameter of air bleeding valve 20 are that 13~15mm, the internal diameter of steam vent 13 are 8~10mm, the maximum of coil spring 35
Compression stress is that 0.3~1.0N, the path increment (up and down action width) of air bleeding valve 20 are 2~3mm.
These data, as a case, can be intended merely to be easier to understand the disclosure of the present invention, not be to limit
Within the above range.In addition, in duplex cylinder compressor, the capacity of 1 cylinder can be reduced, so each numerical value can reduce.In addition, pressure
Contracting can reduce than air bleeding valve path increment in high refrigerating plant, so coil spring can be omitted.
Fig. 5 is the sectional view of compression mechanical part 4, represents the exhaust apparatus possessed in compression chamber 41 and base bearing flange 50b
10.The flowing of exhaust airstream is illustrated according to Fig. 5.Because the gases at high pressure compressed in compression chamber 41 are so that air bleeding valve
20 float from valve seat 14.Gases at high pressure are diverted in 10 periphery chambers 16 and risen, come out from inclined plane 18 by the levitation gap
It is discharged in exhaust silencer 51 (Fig. 1).In the instroke, inclined plane 18 expands the aperture area of each periphery chamber 16,
Relax from periphery chamber 16 to the air-flow of exhaust silencer 51.Therefore, inclined plane 18 can still not reduce the resistance damage of exhaust gas
Lose, the noise produced when spraying exhaust silencer 51 can also be reduced.
Here, the gap (S) formed between the air bleeding valve 20 and valve seat 14 that float is valve block stroke.Valve block stroke length is maximum
If, coil spring 35 is also pressed most tight, and air bleeding valve 20 stops in a flash, if capacity is reduced, air bleeding valve 20
Stroke of valve amount can be reduced to return on valve seat 14.
In above-mentioned instroke, air bleeding valve 20 is with waving up and down action.This wave it is excessive if, the closing of valve seat 14 speed
Degree can slow down, so refrigerating capacity can be caused to decline the adverse current of compression chamber 41 from valve pocket 11, moreover, power consumption can increase.Especially
It is that the service condition more than capacity is given one example, motor speed will easily produce above-mentioned phenomenon in more than 100rps.
The effect of coil spring 35 is to relax waving for air bleeding valve 20.If the active force increase of coil spring 35, with row
The path increment (S) of air valve 20 is reduced and is directly proportional, and waving for air bleeding valve 20 can reduce.But, above-mentioned means can increase exhaust resistance,
So according to the characteristic of application apparatus, it is necessary to consider the design of the path increment (S) of coil spring 35 and air bleeding valve 20.
Next, the cases of design to periphery chamber 16 is illustrated.In the cases of design of above-mentioned domestic air conditioner, periphery chamber
The internal diameter (D2) that 16 internal diameter (D1) is 4mm, its quantity (n) is 10, steam vent 13 is 9mm, the total sectional area of periphery chamber 16
(A1) and steam vent 13 aisle spare (A2) ratio (R) be R=A1/A2=(4/9)2Xn=1.97, the total of periphery chamber 16 cut
Area (A2) is about 2 times of the aisle spare (A1) of steam vent 13.But, it is considered to from the few Cryo Equipment of extraction flow to row
The more air-conditioning of tolerance, use refrigerant and motor rotary speed if, above-mentioned R should be about 1.0~4.0 scope.
Next, the manufacture method to exhaust apparatus 10 carries out simple illustration.In figure 3,2 are used when processing valve pocket 11
The multiple-spindle milling machine such as axle or 3 axles is processed, and several periphery chambers are carried out to process simultaneously.Thereafter, together with center cavity, by steam vent 13
It is processed with the order of valve seat 14 and inclined plane 18.Finally, in the interior cycle deburring of center cavity 12.Packaging technology is very simple
It is single, it can be automated.So, it is easy to be machined if the valve pocket and component that are constituted using circle.In addition, valve pocket 11 passes through
If powder metallurgy or forging method carry out moulding, above-mentioned machining can be significantly omitted.
Embodiment 2：
If the less design of internal diameter of steam vent 13 or the internal diameter of center cavity 12 somewhat expand, between valve seat 14
If the valve seat outer peripheral face 12a of formation slightly expands, the valve seat outer peripheral face 12a meetings formed between the periphery of air bleeding valve and valve seat 14
Become big, so the outer circumferential side of air bleeding valve can add gas passage.
The air bleeding valve 22 of flat board shown in Fig. 6, it is made up of the 4 jut 22a and bending section 22b that configure at equal intervals.4
Individual jut 22a is the curve, more a little bit smaller than the internal diameter of center cavity 12 on circle.Other jut 22a width (W1) compares periphery
The gas passage 16a of chamber 16 width (W2) is big.So, jut 22a will not be embedded into gas passage 16a inside, exhaust
Valve 22 can be slided up and down swimmingly.
Fig. 7 is that the plan of air bleeding valve 22 can be assembled in valve pocket 11.4 bending section 22b, it is between center cavity 12
The passage of additional exhaust.In addition, W1 ＞ W2, so jut 22a can not be embedded in gas passage 16a.In addition, jut
22a or bending section 22b quantitative aspects 3~4 are than advantageous, and if jut 22a quantity increase, bending section 22b's is total
Aisle spare can reduce.
The gases at high pressure discharged from steam vent 13, while flowing in 10 periphery chambers 16, are diverted to 4 bending sections
In 22b, out it is discharged to from center cavity 12 in exhaust silencer 51.Here, collaborating with the exhaust that periphery chamber 16 flows out.Moreover,
Limiter 30 has big gas passage at center, so can also be reduced from the bending section 22b exhaust resistances come out.
In addition, by additional bending section 22b, the area of air bleeding valve 22 will be reduced, so the side floated to air bleeding valve 22
It can be reduced to the active force of the exhaust of effect.As a result, bending section 22b can still not reduce drag losses, and also have into
The effect of the stable posture of air bleeding valve 22 of one step.
In addition, the lower end weight of bending section 22b center lines coil spring 35, so bending section 22b effective area may diminish,
But line footpath is in below 0.5mm, so without worrying that bending section 22b effective area can be greatly reduced.In addition, using inverse circular cone
Molded line coil spring, in the small end face of line footpath, to if the core pressure of air bleeding valve 22, bending section 22b effective area is just
Without what problem.
Embodiment 3：
Rotary compressor can be widely varied due to the revolution of piston 45, the effective vent area of steam vent 13.Such as,
The anglec of rotation of piston 45 from slide plate center be initially 150 degree when, the aperture area of steam vent 13 maximum (100%), thereafter, court
360 degree of direction, effective area is reduced, the aperture areas minimums (about 15%) before and after about 355 degree.
The phenomenon, by Fig. 5 it also will be understood that.Due to the piston 45 that is revolved round the sun in compression chamber 41 so that steam vent 13 is opened
Open area can be changed, and its aperture position is partial to the peripheral direction of steam vent 13, so the gas discharged from steam vent 13
In the direction set for flowing to skew.
In Fig. 8, the internal diameter of respective periphery chamber or gas passage by periphery chamber 161,162,163,164 order gradually
Increase.Therefore, the position consistency of the offset direction of the effective vent of steam vent 13 and periphery chamber 164.Fig. 9 is compression chamber 41 and row
The sectional view of device of air 10.The rotation position of piston 45 is about 350 degree, is reducing the same of the effective vent area of steam vent 13
When, its aperture position is offset towards the direction of periphery chamber 164.
The gas discharged from steam vent 13, flows out, separately from the aperture position of steam vent 13 to immediate periphery chamber 164
Outside, it can be shunted to periphery chamber 163 and 162.Therefore, exhaust resistance can be not only reduced, can also be to the plane of air bleeding valve 20
The distribution of the active force in portion is averaged, so waving for air bleeding valve 20 can be reduced.So, being the characteristics of embodiment 3 can be with
The gas passage area to individual periphery chamber 16 is optimized respectively.
Embodiment 4：
The characteristics of embodiment 4 shown in Figure 10 be it is just polygonal by the way that the cross sectional shape 12e of its center cavity 12 is made,
Gas passage 12d has been added between center cavity 12 and the air bleeding valve 20 of circle.In addition, for the consideration to manufacturing, in 4
Angle is R shapes.
As other embodiments, possess steam vent 13 and valve seat 14 in the bottom surface of center cavity 12.Along center cavity 12
Inner circumferential be configured with 8 periphery chambers.It should be noted that periphery chamber 16 is not to the central opening on 4 sides for constituting center cavity 12.In
The external diameter of the air bleeding valve 20 possessed in the chambers of the heart 12, it is more smaller than the width of center cavity 12 to slide with gap.
The periphery of air bleeding valve 20 and the contact of the inner circumferential of center cavity 12, must be square 4 sides center.By this
The action of the horizontal direction of four contact air bleeding valves 20 is restricted, and can only carry out the action of above-below direction.Above-mentioned contact is row
The sliding surface of the linear contact lay of air valve 20, so resistance to sliding is small, advantage is that air bleeding valve 20 can be moved up and down stably.Moreover, circle
The air bleeding valve 20 of shape can be with rotation, so air bleeding valve 20 will not produce local abrasion.In addition, the sliding surface, as described above, passing through
The configuration of the periphery chamber 16 considered in advance can form non-cutting portion 16b.
The combination of the air bleeding valve 20 of embodiment 4, the center cavity 12 by square and circle, has additional 4 gases to lead to
Road 12d, constitutes the effect of 4 good sliding surfaces.In addition, by additional 4 gas passage 12d, can improve makes air bleeding valve
The balance of 20 gas loads floated.In addition, in Figure 10, the limit that (not shown) center for being embedded in 4 sides of limiter 30 possesses
In position groove 15 (no figure).In addition, coil spring 35 is not also illustrated.
Here, the cross sectional shape of center cavity 12 be include the regular polygon of square just can be with.But, if polygon
If the quantity increase on the side of shape, gas passage 12d quantity can increase, but the gas passage 12d gross area can be reduced, institute
With not good scheme.Therefore, center cavity 12 is that scope from equilateral triangle to regular hexagon is practical.Moreover, from manufacturing
From the viewpoint of, the processability of square is superior.But, if using the powder metallurgy method of forming, do not have in terms of manufacturing
Difference.
The summary and effect to the present invention are illustrated below.
(1) exhaust apparatus of the invention, be the center cavity moved up and down in circular exhaust valve periphery be configured as it is several
The periphery chamber of gas passage, improve exhaust apparatus rigidity while, realize miniaturization (embodiment 1).Chased after in air bleeding valve
Plus gas passage, reduce air resistance (embodiment 2).Also, the size to periphery chamber is optimized respectively, reduction gas resistance
Power (embodiment 3).By making the square that is shaped as of center cavity, additional 4 gas passages constitute round and smooth air bleeding valve and slided
Face (embodiment 4).
(2) by these methods and effect, the air resistance loss that reduction steam vent comes out, and further stablize air bleeding valve
Action, improve compression efficiency.Noise can be improved in addition.
(3) because number of components is less, assembleability is superior.Processing and shaping are also very superior in addition.
(4) due to features described above, the present invention can be widely used as the air bleeding valve of electrodynamic type compressor.
Utilization possibility in industry
The motor compressor of rotary compressor including the present invention, can be in air conditioner, refrigerating plant, water heater etc.
Use, in addition, the present invention can also be used in the rotary compressor of housing low pressure.The exhaust apparatus manufacture of the present invention is held
Easily.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (7)
1. a kind of electrodynamic type compressor, it is characterised in that including：
Cylinder assembly, the cylinder assembly includes the cylinder with compression chamber；
Piston, the piston is rotatably arranged in the compression chamber；
Base bearing and supplementary bearing, the base bearing and the supplementary bearing are respectively provided at the upper surface and lower end of the cylinder assembly
Face, the base bearing and/or the supplementary bearing provided with center cavity and at least one periphery chamber, the periphery chamber be located at it is described in
The outside of the chambers of the heart and connected with the center cavity, described compression chamber one end of direction of the center cavity is provided with steam vent；
Exhaust apparatus, the exhaust apparatus includes air bleeding valve and limiter, and the air bleeding valve is movably arranged at the center cavity
It is interior to open or close the steam vent, limited between the periphery wall of the air bleeding valve and the internal perisporium of the center cavity multiple
Gas passage, the limiter is located at the side of the remote compression chamber in the center cavity and positioned at the air bleeding valve to limit
Make the displacement of the air bleeding valve；
The exhaust apparatus also includes coil spring, and the two ends of the coil spring, which are stopped, is against the limiter and the air bleeding valve
Between often to drive steam vent described in the exhaust valve closure；
The periphery chamber is multiple and around the center cavity circumferentially-spaced distributions；At least one in the multiple periphery chamber
The cross-sectional area of periphery chamber is different from the cross-sectional area of periphery chamber other described, wherein, in the process of the piston rotation, work as institute
State piston rotation block the steam vent and cause the steam vent aperture area it is minimum when, the horizontal stroke in the multiple periphery chamber
The maximum periphery chamber of sectional area is closest with the aperture position of the steam vent.
2. electrodynamic type compressor according to claim 1, it is characterised in that the cross-sectional area of the center cavity is formed as round
Shape, the air bleeding valve includes the jut that multiple uniform intervals are set, the periphery wall and the center cavity of each jut
Internal perisporium be slidably matched, limit the gas between two adjacent juts and the internal perisporium of the center cavity
Body passage.
3. electrodynamic type compressor according to claim 1, it is characterised in that the cross section of the center cavity is formed as just many
Side shape, the air bleeding valve is formed as disc, two often connected sides of the center cavity and the periphery wall of the air bleeding valve it
Between limit a gas passage.
4. electrodynamic type compressor according to claim 1, it is characterised in that the cross-sectional area summation of the periphery chamber is more than
The area of the steam vent.
5. electrodynamic type compressor according to claim 1, it is characterised in that from the remote compression chamber of the center cavity
End between the end face of the base bearing and/or the remote compression chamber of the supplementary bearing provided with annular inclined plane,
The annular inclined plane is tilted in the side from the end face to the compression chamber upwardly toward the direction at the center of center cavity prolongs
Stretch, the outlet of the periphery chamber is in the inclined plane of annular.
6. electrodynamic type compressor according to claim 1, it is characterised in that the coil spring is Hookean spring or non-thread
Property spring.
7. a kind of refrigerating circulatory device, it is characterised in that including the electrodynamic type compression according to any one of claim 1-6
Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410453629.1A CN104196729B (en) | 2014-09-05 | 2014-09-05 | Electrodynamic type compressor and the refrigerating circulatory device with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410453629.1A CN104196729B (en) | 2014-09-05 | 2014-09-05 | Electrodynamic type compressor and the refrigerating circulatory device with it |
Publications (2)
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| CN104196729A CN104196729A (en) | 2014-12-10 |
| CN104196729B true CN104196729B (en) | 2017-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235360A (en) * | 2010-05-07 | 2011-11-09 | 广东美芝制冷设备有限公司 | Double-cylinder rotary compressor |
| CN103410734A (en) * | 2013-08-02 | 2013-11-27 | 广东美芝制冷设备有限公司 | Rotary compressor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4510098B2 (en) * | 2008-01-07 | 2010-07-21 | 日立アプライアンス株式会社 | Scroll compressor |
| CN102094823B (en) * | 2009-12-10 | 2012-10-10 | 广东美芝制冷设备有限公司 | Cylinder assembly and core-adjusting method for cylinder of double-cylinder rotary compressor |
| JP5591135B2 (en) * | 2011-01-28 | 2014-09-17 | 三菱重工業株式会社 | Electric compressor and method for assembling the same |
| CN204140432U (en) * | 2014-09-05 | 2015-02-04 | 广东美芝制冷设备有限公司 | Electrodynamic type compressor and there is its refrigerating circulatory device |
-
2014
- 2014-09-05 CN CN201410453629.1A patent/CN104196729B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235360A (en) * | 2010-05-07 | 2011-11-09 | 广东美芝制冷设备有限公司 | Double-cylinder rotary compressor |
| CN103410734A (en) * | 2013-08-02 | 2013-11-27 | 广东美芝制冷设备有限公司 | Rotary compressor |
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| Publication number | Publication date |
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| CN104196729A (en) | 2014-12-10 |
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