CN104329258A - Electric compressor - Google Patents
Electric compressor Download PDFInfo
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- CN104329258A CN104329258A CN201410617662.3A CN201410617662A CN104329258A CN 104329258 A CN104329258 A CN 104329258A CN 201410617662 A CN201410617662 A CN 201410617662A CN 104329258 A CN104329258 A CN 104329258A
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- silencing apparatus
- valve pocket
- type compressor
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Abstract
The invention discloses an electric compressor. The electric compressor comprises a shell and a compression mechanism, wherein the compression mechanism comprises an air cylinder assembly, a main bearing, an auxiliary bearing, an exhausting device and a silencer device; a valve cavity is formed in the main bearing and/or the auxiliary bearing and is provided with an exhausting hole communicated with a compression cavity; the silencer device is arranged on the main bearing and/or the auxiliary bearing; when is arranged on the main bearing, the silencer device comprises a first silencer, and the first silencer is arranged at an gas outlet of the valve cavity and is provided with a silencer exhausting hole; when is arranged on the auxiliary bearing, the silencer device comprises the first silencer and a second silencer, the first silencer is arranged at the gas outlet of the valve cavity and is provided with the silencer exhausting hole, and the second silencer is arranged at the end surface of the auxiliary bearing and externally sleeves the first silencer. According to the electric compressor disclosed by the invention, the noise generated in the valve cavity can be effectively reduced.
Description
Technical field
The present invention relates to refrigerating field, especially relate to a kind of electrodynamic type compressor.
Background technique
Free valve mode is proposed in the venting gas appliance of electrodynamic type compressor.Its objective is, make outlet valve miniaturization, improve responsiveness during high speed operation, by improving the rigidity of control valve unit, preventing the distortion that compression chamber is caused, improve compression efficiency and improve manufacturing.The noise occurring source of the electrodynamic type compressor simultaneously in correlation technique is mostly from the air pulsing of exhaust by producing when exhaust port and outlet valve of compression chamber.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the present invention proposes a kind of electrodynamic type compressor, effectively can be reduced in the noise produced in valve pocket.
According to the electrodynamic type compressor of the embodiment of the present invention, comprising: housing and compressing mechanism, described compressing mechanism is located in described housing, and described compressing mechanism comprises: cylinder assembly; Main bearing and supplementary bearing, on the upper surface that described main bearing and described supplementary bearing are located at described cylinder assembly respectively and lower surface, described cylinder assembly has compression chamber, and described main bearing and/or described supplementary bearing are provided with valve pocket, and described valve pocket has the exhaust port to described compression chamber opening; Venting gas appliance, described venting gas appliance comprises outlet valve and limit assembly, described outlet valve is located at described exhaust port place for exhaust port described in switch, and described limit assembly to be located in described valve pocket and on the movement direction of described outlet valve, to limit the moving displacement of described outlet valve; Muffler, described muffler is located on described main bearing and/or described supplementary bearing, when described muffler is located on described main bearing, described muffler comprises the first silencing apparatus, described first silencing apparatus is located at the gas outlet of described valve pocket, and described first silencing apparatus is provided with silencing apparatus exhaust port; When described muffler is located on described supplementary bearing, described muffler comprises the first silencing apparatus and the second silencing apparatus, described first silencing apparatus is located at the gas outlet of described valve pocket, described first silencing apparatus is provided with silencing apparatus exhaust port, the end face that described second silencing apparatus is located at described supplementary bearing covers on described first silencing apparatus outward, and described second silencing apparatus is by being communicated with in described housing with the gas channel of described main bearing through described supplementary bearing, described cylinder assembly.
According to the electrodynamic type compressor of the embodiment of the present invention, by being provided with the first silencing apparatus, thus effectively can be reduced in the noise produced in valve pocket, and then realize the effect of the noise reducing electrodynamic type compressor.
In some embodiments of the invention, when described muffler is located on described main bearing, described muffler also comprises the 3rd silencing apparatus, described 3rd silencing apparatus is located on the end face of described main bearing, to be enclosed within described first silencing apparatus and described 3rd silencing apparatus is provided with tap hole outside described 3rd silencing apparatus.
Particularly, described first silencing apparatus comprises: joint, and described joint is located at the gas outlet of described valve pocket; Noise elimination portion, described noise elimination portion is communicated with described joint, limits semitight chamber in described noise elimination portion, and described semitight chamber has described silencing apparatus exhaust port.
Preferably, total gas passage area of described silencing apparatus exhaust port is greater than the opening area of described exhaust port.
In specific embodiments more of the present invention, described first silencing apparatus comprises the flange on the end face being fixed on described main bearing and/or described supplementary bearing.
In other specific embodiments of the present invention, the part inner circle wall of the described gas outlet of vicinity of described valve pocket inwardly concaves to limit fixed groove, and a part of periphery wall of described first silencing apparatus contacts with the inner circle wall of described fixed groove.
In some specific embodiments more of the present invention, the part inner circle wall of the described gas outlet of vicinity of described valve pocket inwardly concaves to limit fixed groove, the end face towards described compression chamber of described first silencing apparatus is provided with the frame extended radially outward, described frame is placed on the diapire of described fixed groove, described electrodynamic type compressor also comprises bushing nut, to be enclosed within described first silencing apparatus and to be pressed in by described frame on the diapire of described fixed groove outside described bushing nut.
In other specific embodiment of the present invention, the periphery wall of described first silencing apparatus is provided with projection, and described electrodynamic type compressor also comprises latch plate, and described latch plate is separately fixed on described projection and described 3rd silencing apparatus.
In some embodiments of the invention, described limit assembly comprises snubber and coil spring, described snubber is fixed in described valve pocket, and described coil spring is positioned at described valve pocket and the two ends of described coil spring are only against on described snubber and described outlet valve respectively.
According to some embodiments of the present invention, described valve pocket comprises center cavity and chamber, periphery, and chamber, described periphery is distributed in the outside of described center cavity and is communicated with described center cavity.
Accompanying drawing explanation
Fig. 1 is in embodiments of the invention 1, is the sectional view of the compressing mechanism of rotary compressor, represents the summary of venting gas appliance;
Fig. 2, in same embodiment 1, represents the detail drawing being configured in the venting gas appliance of main bearing flange part;
Fig. 3 in same embodiment 1, represent the detailed planimetric map of valve pocket;
Fig. 4 in same embodiment 1, the alternate design figure of the first silencing apparatus;
Fig. 5 in same embodiment 1, the alternate design figure of venting gas appliance;
In Fig. 6 embodiments of the invention 2, the alternate design figure of the first silencing apparatus means of fixation;
Fig. 7 in same embodiment 2, the alternate design figure of the first silencing apparatus means of fixation;
Fig. 8 in same embodiment 2, the alternate design figure of the first silencing apparatus means of fixation.
Reference character:
Rotary compressor 1, housing 2, compressing mechanism 4, cylinder 40, compression chamber 41, piston 45, eccentric shaft 60, main bearing 50, main bearing flange 52, supplementary bearing 55, supplementary bearing flange 57,
Venting gas appliance 10 (35), valve pocket 11, first silencing apparatus 20 (28), first silencing apparatus exhaust port 20a (22), half bulb 20e, frame 20b, flange 20c, projection 20d, the 3rd silencing apparatus 30, the 3rd silencing apparatus exhaust port 30a, exhaust port 13, outlet valve 18, center cavity 12, snubber 15, coil spring 19, chamber, periphery 16 (17), circular trough 11a, gas channel 17a, latch plate 26,
Screw 43, motor section 3, bushing nut 23.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " the 3rd " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
The electrodynamic type compressor according to the embodiment of the present invention is described in detail below with reference to Fig. 1-Fig. 8.This electrodynamic type compressor can be applied in the refrigeration plant such as air conditioner, refrigerator.Wherein electrodynamic type compressor can be the compressor such as rotary compressor or reciprocal compressor.
As Figure 1-Figure 8, according to the electrodynamic type compressor of the embodiment of the present invention, comprise: housing 2 and compressing mechanism 4, compressing mechanism 4 is located in housing 2, and compressing mechanism 4 comprises: cylinder assembly, main bearing 50, supplementary bearing 55, venting gas appliance (venting gas appliance 10 such as shown in Fig. 1 and the venting gas appliance shown in Fig. 5 28) and muffler.
On the upper surface that main bearing 50 and supplementary bearing 55 are located at cylinder assembly respectively and lower surface, cylinder assembly has compression chamber 41, and main bearing 50 and/or supplementary bearing 55 are provided with valve pocket 11, and valve pocket 11 has the exhaust port 13 to compression chamber 41 opening.Need to be described, when electrodynamic type compressor is single cylinder rotary compressor (as shown in Figure 1), cylinder assembly comprises a cylinder 40, then on main bearing 50 and supplementary bearing 55 upper surface that is located at cylinder 40 respectively and lower surface.When electrodynamic type compressor is twin-tub rotation-type compressor, cylinder assembly comprises two cylinders and central diaphragm, central diaphragm is between two cylinders, and main bearing 50 is located on the upper surface of the cylinder being positioned at top, and supplementary bearing 55 is located on the lower surface of the cylinder being positioned at below.
Be understandable that, compressing mechanism 4 can also comprise the elements such as eccentric shaft 60, piston 45, slide plate, and electrodynamic type compressor also comprises the motor section 3 driving eccentric shaft 60 to rotate.Be understandable that, in describing the invention, " on " can be that D score can be the direction away from motor section 3 on the bearing of trend of eccentric shaft 60 near the direction of motor section 3 on the bearing of trend of eccentric shaft 60.
Venting gas appliance comprises outlet valve 18 and limit assembly, and outlet valve 18 is located at exhaust port 13 place for switch pair pore 13, and limit assembly to be located in valve pocket 11 and on the movement direction of outlet valve 18, to limit the moving displacement of outlet valve 18.Wherein outlet valve 18 opens exhaust port 13 under the momentum effect of the gaseous coolant of High Temperature High Pressure.
Muffler is located on main bearing 50 and/or supplementary bearing 55, when muffler is located on main bearing 50, muffler comprises the first silencing apparatus, first silencing apparatus is located at the gas outlet of valve pocket 11, first silencing apparatus is provided with silencing apparatus exhaust port 20a, and the first silencing apparatus is communicated with the space in housing 2 by silencing apparatus exhaust port 20a.
When muffler is located on supplementary bearing 55, muffler comprises the first silencing apparatus and the second silencing apparatus, first silencing apparatus is located at the gas outlet of valve pocket 11, first silencing apparatus is provided with silencing apparatus exhaust port 20a, the end face that second silencing apparatus is located at supplementary bearing 55 cover on the first silencing apparatus outward, second silencing apparatus passes through through supplementary bearing 55, cylinder assembly is communicated with in housing 2 with the gas channel of main bearing 50, be drained in the first silencing apparatus from the gaseous coolant of the High Temperature High Pressure of compression chamber 41 discharge by exhaust port 13, then gaseous coolant to be drained into the second silencing apparatus from silencing apparatus exhaust port 20a and to be drained in housing 2 by gas channel.
According to the electrodynamic type compressor of the embodiment of the present invention, by being provided with the first silencing apparatus, thus effectively can be reduced in the noise produced in valve pocket 11, and then realize the effect of the noise reducing electrodynamic type compressor.
In further embodiment of the present invention, as shown in Figure 1, when muffler is located on main bearing 50, muffler also comprises the 3rd silencing apparatus 30,3rd silencing apparatus 30 is located on the end face of main bearing 50, to be enclosed within the first silencing apparatus and the 3rd silencing apparatus 30 is provided with tap hole (being the 3rd following silencing apparatus exhaust port 30a) outside the 3rd silencing apparatus 30.Thus enter into the 3rd silencing apparatus 30 from the gaseous coolant that the first silencing apparatus is discharged, and be drained in housing 2 from tap hole 30a.The first silencing apparatus can be eliminated can not to disappear completely the noise of the frequency range fallen by being provided with the 3rd silencing apparatus the 30, three silencing apparatus 30 thus, reduce the noise of electrodynamic type compressor further.
In a particular embodiment of the present invention, the first silencing apparatus comprises: joint (being following press-in portion or flange) and noise elimination portion (example half bulb 20e described as follows), joint is located at the gas outlet of valve pocket 11.Noise elimination portion is communicated with joint, limits semitight chamber in noise elimination portion, and semitight chamber has silencing apparatus exhaust port 20a.Thus make the structure of the first silencing apparatus simple.More specifically, semitight chamber is formed as cylindrical or hemisphere.Wherein, as shown in Figure 1, Figure 2, shown in Fig. 6-Fig. 8, silencing apparatus exhaust port 20a can be located on the perisporium in noise elimination portion, and silencing apparatus exhaust port 20a is multiple.In the example of fig. 4, silencing apparatus exhaust port 22 can be located at the top in noise elimination portion, and silencing apparatus exhaust port 22 is one.
In preferred embodiments of the present invention, total gas passage area of silencing apparatus exhaust port 22 (20a) is greater than the opening area of exhaust port 13, thus can prevent because exhaust resistance increases and produce noise.
As shown in Figure 7, in specific embodiments more of the present invention, the first silencing apparatus 20 comprises the flange 20c on the end face being fixed on main bearing 50 and/or supplementary bearing 55, and more specifically, flange 20c is fixed on main bearing 50 or supplementary bearing 55 by screw 43.Simultaneously when the first silencing apparatus is accommodated in the second silencing apparatus or in the 3rd silencing apparatus 30, flange 20c extend between the second silencing apparatus and supplementary bearing 55 or between the 3rd silencing apparatus 30 and main bearing 50, and is fixed by screw 43.
As shown in Figure 4, in other specific embodiments of the present invention, the part inner circle wall of the contiguous gas outlet of valve pocket 11 inwardly concaves to limit fixed groove (example circular trough 11a described as follows), a part of periphery wall of the first silencing apparatus 20 contacts with the inner circle wall of fixed groove, that is, a part for the first silencing apparatus 20 is pressed in valve pocket 11 to fix the first silencing apparatus 20.
As shown in Figure 6, in some specific embodiments more of the present invention, the part inner circle wall of the contiguous gas outlet of valve pocket 11 inwardly concaves to limit fixed groove 11a, the end face towards compression chamber 41 of the first silencing apparatus 20 is provided with the frame 20b extended radially outward, frame 20b is placed on the diapire of fixed groove 11a, electrodynamic type compressor also comprises bushing nut 23, to be enclosed within the first silencing apparatus 20 and to be pressed in by frame 20b on the diapire of fixed groove 11a outside bushing nut 23.
As shown in Figure 8, in other specific embodiment of the present invention, the periphery wall of the first silencing apparatus 20 is provided with projection 20d, and electrodynamic type compressor also comprises latch plate 26, and latch plate 26 is separately fixed on projection 20d and the 3rd silencing apparatus 30.It is appreciated of course that, also can be fixed connection by the means of fixation of latch plate 26 and projection 20d between the first silencing apparatus and the second silencing apparatus.
In some embodiments of the invention, as depicted in figs. 1 and 2, limit assembly comprises snubber 15 and coil spring 19, and snubber 15 is fixed in valve pocket 11, and coil spring 19 is positioned at valve pocket 11 and the two ends of coil spring 19 are only against on snubber 15 and outlet valve 18 respectively.Thus make the structure of limit assembly simple.
As shown in Figure 3 and Figure 5, in a particular embodiment of the present invention, valve pocket 11 comprises center cavity 12 and chamber, periphery (chamber, periphery 16 such as shown in Fig. 1 and the chamber, periphery 17 shown in Fig. 5), and chamber, periphery is distributed in the outside of center cavity 12 and is communicated with center cavity 12.Wherein chamber, periphery can be multiple, and the circumferential uniform intervals distribution in centrally chamber 12, chamber, multiple periphery, in the example of fig. 3, chamber, periphery 16 is 10, and chamber, each periphery 16 is communicated with center cavity 12 by open channel 16a.In the example of hgure 5, chamber, periphery 17 is four, and chamber, each periphery 17 is communicated with center cavity 12 by open channel 17a.Be understandable that, when valve pocket 11 comprises center cavity 12 and chamber, periphery, the gaseous coolant of discharging from center cavity 12 and chamber, periphery all be drained into the first silencing apparatus.
When valve pocket 11 comprises center cavity 12 and chamber, periphery, one end of center cavity 12 is towards compression chamber 41 opening to limit exhaust port 13, and be provided with valve seat 14 in center cavity 12, valve seat 14 is arranged around exhaust port 13, and outlet valve 18 is placed on valve seat 14.
Describe the rotary compressor according to the present invention's two specific embodiments in detail below with reference to Fig. 1-Fig. 8, the present invention is simultaneously relevant with the muffler of the operation noise reducing the motor compressor carried in air-conditioning, refrigeration plant, water heater etc.
Embodiment 1:
Embodiment 1 is the case adopted in rotary compressor by exhaust silencer device of the present invention.
In FIG, the motor section 3 that rotary compressor 1 is configured by compressing mechanism 4 fixing in the internal diameter of housing 2, its top forms.Compressing mechanism 4 possesses: carry out the piston 45 of off-centre operation in the compression chamber 41 formed in cylinder 40, this cylinder, with the eccentric shaft 60 of the slide plate (not shown) of this piston synchronous reciprocating operation, eccentric drive piston 45, carry out sliding to this eccentric shaft the main bearing 50 and supplementary bearing 55 supported.
Be fixed in main bearing 50 on cylinder 40 and supplementary bearing 55 by 4 screws 43, possess main bearing flange 52 and the supplementary bearing flange 57 in seal compression chamber 41 respectively.In main bearing flange 52, be configured with venting gas appliance 10, the opening end of this valve pocket 11 is connected to the first silencing apparatus 20.And the 3rd silencing apparatus 30 receiving the first silencing apparatus 20 is fixed on above main bearing flange 52.
Possess in first silencing apparatus 20 in first silencing apparatus exhaust port 20a, the 3rd silencing apparatus 30 and possess the 3rd silencing apparatus exhaust port 30a.From compression chamber 41 discharge pressurized gas from storage exhaust port 13 and outlet valve 18 etc. valve pocket 11 by the inside of the first silencing apparatus 20 and then the order to the first silencing apparatus exhaust port 20a, flow out in the 3rd silencing apparatus 30.Thereafter, discharge from the 3rd silencing apparatus exhaust port 30a to the inside of housing 2.
Fig. 2 represents the cross section of venting gas appliance 10 and the first silencing apparatus 20.In addition, Fig. 3 represents the X cross section of Fig. 2.Venting gas appliance 10 possesses: at the center of the center cavity 12 of cylinder, to the snubber 15 of the path increment of the outlet valve 18 of the exhaust port 13 of compression chamber 41 opening, the circle of switch pair pore 13, restriction outlet valve 18, between outlet valve 18 and snubber 15, possesses conical coil spring 19.The top of the light pressure exhaust valve 18 of coil spring 19, the inclination of the outlet valve 18 moved up and down is made to be unlikely to too large.In addition, Fig. 3 eliminates the diagram of snubber 15 and coil spring 19.
Along center cavity 12 periphery at equal intervals opening chamber 16,10 columniform peripheries (Fig. 3), in the first silencing apparatus 20 to center cavity 12 opening.Therefore, valve pocket 11 is by center cavity 12, form as the chamber, periphery 16 of exhaust passage.Therefore, the pressurized gas of discharging from exhaust port 13 are roundabout by the centre of chamber, 10 peripheries 16 or center cavity 12, flow out in the first silencing apparatus 20.
First silencing apparatus 20 is punch process component, and press-in is fixed in the circular trough 11a of opening end processing of valve pocket 11.The press-in portion of the first silencing apparatus 20 is cylindrical, and its top is half bulb 20e.Further, 1 or several first silencing apparatus exhaust port 20a are to half bulb 20e opening.Therefore, the first silencing apparatus 20 is for possessing the semitight chamber of exhaust port.At this, half bulb 20e of the first silencing apparatus 20 effectively can be reduced in the noise produced in valve pocket 11.
Much less, the first silencing apparatus 20 profile design, according to object of the present invention, can all selections be carried out.In addition, in order to prevent exhaust resistance from increasing, wish that total gas passage area of the first silencing apparatus exhaust port 20a is larger than the opening area of exhaust port 13.
Next, according to embodiment 1, effect of the present invention is described.
Most of noises that rotary compressor 1 produces, mainly because the pressure of compression chamber 11 uprises, the air pulsing that the enforcement of outlet valve 18 opening produces is large.In addition, the frequency range of noise that these air pulsings cause is that the intermediate wave of more than 1000Hz is to high frequency waves.This noise is propagated to housing 2 from compressing mechanism 4, and the object of the first silencing apparatus 20 reduces this noise exactly.
Valve pocket 11 to be built with compact the first hemi-spherical silencing apparatus 20 and is carried out noise countermeasure by the present invention all over, so, compare in reduction noise and have superiority.And the 3rd silencing apparatus 30 conscientiously can reduce by the first silencing apparatus 20 and can not to disappear completely the noise of the frequency range fallen.
That is, the noise that the pulsation propagating into valve pocket 11 produces is effectively reduced by 2 sections of silencing apparatuss by the present invention.In addition, the rotary compressor that discharge capacity is little and the little refrigeration plant of refrigerant circulation can omit the 3rd silencing apparatus 30.
Shown in Fig. 4 is the first silencing apparatus exhaust port 22 that the first silencing apparatus 20, half bulb 20e is provided with band tail pipe, thus the cases of design of noise-decreasing.But tail pipe 22a can increase exhaust resistance sometimes.At this moment, the aperture or accelerate that can expand the first silencing apparatus exhaust port 22 of band tail pipe solves.
Fig. 5 is the planimetric map of the venting gas appliance 35 of chamber 16,4 peripheries composition.Centrally the chamber, periphery 16 of the inner circumferential opening in chamber 12 is 4, and in order to ensure the gas channel identical with above-mentioned venting gas appliance 10, the sectional area in chamber, periphery 17 and the A/F of gas channel 17a will strengthen.
The quantity in chamber, this minimizing periphery 17, increases in the design of sectional area, changes the sectional shape of the first silencing apparatus 28, and 4 angles are circular quadrilateral, and silencing apparatus outward appearance can realize miniaturization.As the design's case, the first silencing apparatus 28 carries out shape change according to the design of venting gas appliance 35, considers to carry out miniaturization and noise reduction.
According to above explanation, venting gas appliance 10 and the first silencing apparatus 20 and the 3rd silencing apparatus 30 are configured on main bearing flange 52, but these also can be configured in (in this case, the 3rd silencing apparatus 30 replaces with the second silencing apparatus) on supplementary bearing 57, or on above-mentioned two flanges.
Embodiment 2:
Connect the fixing of the first silencing apparatus 20 of venting gas appliance 10, because the pulsation of exhaust may loosen, so need design reliably.In addition, assembling must facilitate.Embodiment 2 is exactly the fixation method for the first silencing apparatus 20, has added 3 cases of design.
The circular trough 11a fixing the first silencing apparatus 20 strengthens by Fig. 6, in the periphery of the first silencing apparatus 20 and the gap of circular trough 11a, be pressed into bushing nut 23.The frame 20b that the periphery of the first silencing apparatus 20 adds is pressed on the bottom surface of circular trough 11a and static by bushing nut 23.In this design, by using bushing nut 23, the internal diameter of circular trough 11a and the outer-diameter accuracy requirement of the first silencing apparatus 20 can be reduced.
Fig. 7 has been added flange 20c, has been fixed on main bearing flange 52 together with the 3rd silencing apparatus 30 by screw in the first silencing apparatus 20.In addition, fix together with the 3rd silencing apparatus 30, the external diameter of flange 20c can become large, so little flange 20c is fixing also passable on main bearing.
Fig. 8 has added the latch plate 26 possessed between projection 20d, inner face by the 3rd silencing apparatus 30 in the upper end of the first silencing apparatus 20, make the cases of design that the first silencing apparatus 20 fixes more firmly.In addition, latch plate 26 is bending plectanes, but flat board also can be used to bend.
Feature of the present invention be by the past mostly in case disclosed in there is no the circular valve of the freedom of fixed end, or the venting gas appliance of the free valve of the sub-circular valve based on circle etc. is designed to compact type, be connected to the first silencing apparatus 20 at the gas outlet of valve pocket 11 and, possess the 3rd silencing apparatus 30 of storage first silencing apparatus 20.
As the explanation disclosing example of the present invention, employ the most universal rotary compressor, also easily apply in the electrodynamic type compressor such as reciprocal compressor of other modes.That is, not only can be applied in the rotary compressor such as vertical, horizontal, swing according to the first silencing apparatus of the embodiment of the present invention, also have in the electrodynamic type compressors such as reciprocal compressor have also been obtained and use widely.
Rotary compressor tool according to the specific embodiment of the invention has the following advantages:
(1) by whole for the venting gas appliance of the noise source sound source countermeasure be surrounded with the first small-sized silencing apparatus, and dual noise reduction is carried out, so noise effects is good by the 3rd silencing apparatus of storage first silencing apparatus.
The negligible amounts of (2) first silencing apparatuss, so assembling performance is superior.
(3) according to above-mentioned feature, the exhaust silencer that the present invention can be used as motor compressor is used widely.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. an electrodynamic type compressor, is characterized in that, comprising: housing and compressing mechanism, and described compressing mechanism is located in described housing, and described compressing mechanism comprises:
Cylinder assembly;
Main bearing and supplementary bearing, on the upper surface that described main bearing and described supplementary bearing are located at described cylinder assembly respectively and lower surface, described cylinder assembly has compression chamber, and described main bearing and/or described supplementary bearing are provided with valve pocket, and described valve pocket has the exhaust port to described compression chamber opening;
Venting gas appliance, described venting gas appliance comprises outlet valve and limit assembly, described outlet valve is located at described exhaust port place for exhaust port described in switch, and described limit assembly to be located in described valve pocket and on the movement direction of described outlet valve, to limit the moving displacement of described outlet valve;
Muffler, described muffler is located on described main bearing and/or described supplementary bearing, when described muffler is located on described main bearing, described muffler comprises the first silencing apparatus, described first silencing apparatus is located at the gas outlet of described valve pocket, and described first silencing apparatus is provided with silencing apparatus exhaust port;
When described muffler is located on described supplementary bearing, described muffler comprises the first silencing apparatus and the second silencing apparatus, described first silencing apparatus is located at the gas outlet of described valve pocket, described first silencing apparatus is provided with silencing apparatus exhaust port, the end face that described second silencing apparatus is located at described supplementary bearing covers on described first silencing apparatus outward, and described second silencing apparatus is by being communicated with in described housing with the gas channel of described main bearing through described supplementary bearing, described cylinder assembly.
2. electrodynamic type compressor according to claim 1, it is characterized in that, when described muffler is located on described main bearing, described muffler also comprises the 3rd silencing apparatus, described 3rd silencing apparatus is located on the end face of described main bearing, to be enclosed within described first silencing apparatus and described 3rd silencing apparatus is provided with tap hole outside described 3rd silencing apparatus.
3. electrodynamic type compressor according to claim 1, is characterized in that, described first silencing apparatus comprises:
Joint, described joint is located at the gas outlet of described valve pocket;
Noise elimination portion, described noise elimination portion is communicated with described joint, limits semitight chamber in described noise elimination portion, and described semitight chamber has described silencing apparatus exhaust port.
4. electrodynamic type compressor according to claim 1, is characterized in that, total gas passage area of described silencing apparatus exhaust port is greater than the opening area of described exhaust port.
5. electrodynamic type compressor according to claim 1, is characterized in that, described first silencing apparatus comprises the flange on the end face being fixed on described main bearing and/or described supplementary bearing.
6. electrodynamic type compressor according to claim 1, it is characterized in that, the part inner circle wall of the described gas outlet of vicinity of described valve pocket inwardly concaves to limit fixed groove, and a part of periphery wall of described first silencing apparatus contacts with the inner circle wall of described fixed groove.
7. electrodynamic type compressor according to claim 1, it is characterized in that, the part inner circle wall of the described gas outlet of vicinity of described valve pocket inwardly concaves to limit fixed groove, the end face towards described compression chamber of described first silencing apparatus is provided with the frame extended radially outward, described frame is placed on the diapire of described fixed groove, described electrodynamic type compressor also comprises bushing nut, to be enclosed within described first silencing apparatus and to be pressed in by described frame on the diapire of described fixed groove outside described bushing nut.
8. electrodynamic type compressor according to claim 2, is characterized in that, the periphery wall of described first silencing apparatus is provided with projection, and described electrodynamic type compressor also comprises latch plate, and described latch plate is separately fixed on described projection and described 3rd silencing apparatus.
9. electrodynamic type compressor according to claim 1, it is characterized in that, described limit assembly comprises snubber and coil spring, described snubber is fixed in described valve pocket, and described coil spring is positioned at described valve pocket and the two ends of described coil spring are only against on described snubber and described outlet valve respectively.
10. electrodynamic type compressor according to claim 1, is characterized in that, described valve pocket comprises center cavity and chamber, periphery, and chamber, described periphery is distributed in the outside of described center cavity and is communicated with described center cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410617662.3A CN104329258A (en) | 2014-11-04 | 2014-11-04 | Electric compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410617662.3A CN104329258A (en) | 2014-11-04 | 2014-11-04 | Electric compressor |
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| CN104329258A true CN104329258A (en) | 2015-02-04 |
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| CN (1) | CN104329258A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588007A (en) * | 2017-10-26 | 2018-01-16 | 西安庆安制冷设备股份有限公司 | A kind of compressor noise-reduction structure |
| CN112412789A (en) * | 2019-08-23 | 2021-02-26 | 广东美芝制冷设备有限公司 | Compressor and refrigeration cycle device |
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| JPH0270985A (en) * | 1988-08-02 | 1990-03-09 | Carrier Corp | Muffler/parting plate assembly |
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| CN101319676A (en) * | 2007-06-07 | 2008-12-10 | 乐金电子(天津)电器有限公司 | Silencing device on lower bearing of compressor |
| CN102235357A (en) * | 2010-05-07 | 2011-11-09 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN203161551U (en) * | 2013-03-25 | 2013-08-28 | 广东美芝精密制造有限公司 | Double-exhaust compressor and single-exhaust compressor |
| CN204239262U (en) * | 2014-11-04 | 2015-04-01 | 广东美芝制冷设备有限公司 | Electrodynamic type compressor |
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| US4573879A (en) * | 1983-06-24 | 1986-03-04 | Matsushita Refrigeration Company | Rotary compressor |
| JPS61192891A (en) * | 1985-02-20 | 1986-08-27 | Matsushita Refrig Co | Rotary compressor |
| JPH0270985A (en) * | 1988-08-02 | 1990-03-09 | Carrier Corp | Muffler/parting plate assembly |
| JPH03998A (en) * | 1989-05-29 | 1991-01-07 | Sanyo Electric Co Ltd | Rotary compressor |
| JPH11287192A (en) * | 1998-04-02 | 1999-10-19 | Matsushita Refrig Co Ltd | Rotary type refrigerant compressor |
| CN1566700A (en) * | 2003-06-17 | 2005-01-19 | 乐金电子(天津)电器有限公司 | Hermetic rotary compressor |
| CN101319676A (en) * | 2007-06-07 | 2008-12-10 | 乐金电子(天津)电器有限公司 | Silencing device on lower bearing of compressor |
| CN102235357A (en) * | 2010-05-07 | 2011-11-09 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN203161551U (en) * | 2013-03-25 | 2013-08-28 | 广东美芝精密制造有限公司 | Double-exhaust compressor and single-exhaust compressor |
| CN204239262U (en) * | 2014-11-04 | 2015-04-01 | 广东美芝制冷设备有限公司 | Electrodynamic type compressor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588007A (en) * | 2017-10-26 | 2018-01-16 | 西安庆安制冷设备股份有限公司 | A kind of compressor noise-reduction structure |
| CN112412789A (en) * | 2019-08-23 | 2021-02-26 | 广东美芝制冷设备有限公司 | Compressor and refrigeration cycle device |
| CN112412789B (en) * | 2019-08-23 | 2022-09-06 | 广东美芝制冷设备有限公司 | Compressor and refrigeration cycle device |
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