CN1566638A - Silencer of hermetic compressor - Google Patents

Abstract

The invention relates to a silencer of closed type compressor. It comprises structures as follows: in the main body 32 of the silencer 30, a noise reducing structure is arranged; on one side of the main body 32, a linkage part 33 is arranged for linking with the valve assembly; on the linkage part 33, a discharge outlet is arranged for conveying the start-up oil from the main body 32 to the compressing chamber; on one side of the main body 32 bottom part, a suction inlet is arranged for in-taking the start-up oil to the silencer 30; on one side of the main body 32 bottom part, a drain hole 34 is arranged; around the drain hole 34, sleeve 35 is arranged; the sleeve 35 is extended down to the silencer 30 length direction, and on its front end, an inclining cutting part 36 is arranged; on the front end of the inclining cutting part 36, a dropping induced bulge 37; the dropping induced bulge 37 can reduce the volume of lubricating oil in-taken to the main body 32 by the drain hole 34, which can prevent compressor suction force form rising.

Description

The baffler of hermetic type compressor

Technical field

The present invention relates to a kind of hermetic type compressor, the baffler (Muffler for hermetic compressor) that particularly relates to a kind of hermetic type compressor, it is arranged on compressor inside, has made lubricated oil with cooling action excessively be not drawn into baffler inside.

Background technique

Fig. 1 is the internal structure generalized section of the common compressor of prior art.As shown in the figure, above-mentioned existing common compressor, it mainly comprises following structure member:

By the seal container 1 that upper container 1t and bottom container 1b constitute, this seal container 1 inside is provided with frame 2, is fixed with stator 3 on the frame 2, and utilizes spring 2S that frame 2 is supported in the seal container 1.

Frame 2 central authorities run through and are provided with crankshaft 5, and with these crankshaft 5 integrally formed rotors 4 that are provided with, rotor 4 by with the mutual electric field action of stator 3, together rotate with crankshaft 5.

In the upper end of crankshaft 5, be provided with the centrifugal fin 5b that departs from crankshaft 5 rotating centers; Opposite side at centrifugal fin 5b is provided with statocone 5c; Crankshaft 5 can rotate and play frames 2 simultaneously.

The inside of crankshaft 5 is provided with oil groove 5a; And the lubricant oil L that is positioned at seal container 1 bottom can direct into the top of above-mentioned frame 2 and disperse and comes by oil groove 5a; The underpart of crankshaft 5 is provided with can aspirate lubricant oil L, and it is delivered to the aspirator 5d of oil groove 5a.

The cylinder 6 that is built-in with pressing chamber 6 ' is arranged on the frame 2; In pressing chamber 6 ', be provided with by the centrifugal fin 5b of crankshaft 5 and the piston 7 that is connected with connecting rod 8; At the front end of cylinder 6, be provided with valve member 9, this valve member 9 can be controlled the condensing agent inflow or flow out pressing chamber 6 '; And on valve member 9, be fixed with top cover 10; On top cover 10, in order to transmit condensing agent to pressing chamber 6 ', baffler 11 is mounted on the valve member 9; Baffler 11 plays the effect of the noise that minimizing causes by the startup oil body that enters by suction pipe 12 in the seal container 1.

Baffler 11 as shown in Figure 3, one sidetracking hole is provided with weep hole 11 ' in its underpart, this weep hole 11 ' can discharge the oil that are stranded in the baffler 11, and particularly it plays the oil in the seal container 1 is sent to effect in the pressing chamber 6 ' in the inhalation type compressor; The outer shield tube 15 that is surrounded with of weep hole 11 ', when the work of suction, this shield tube 15 plays oil seal container 1 in when passing through weep hole 11 ', does not allow the effect of excessive suction; Shield tube 15 underparts form inclination cut-out portion 16.

Discharge pipe 13 (not shown) is discharged the condensing agent of compression outside compressor.

Drive the compressor of said structure, crankshaft 5 can rotation, simultaneously power is reached piston 7 by connecting rod 8, and pressing chamber 6 ' on the oil body of working be compressed; In addition, the aspirator 5d work that rotation by crankshaft 5 drives, cause lubricant oil L by oil groove 5a suction, and disperse by above-mentioned centrifugal fin 5b top, the lubricant oil L that this disperses will play lubricated and cooling action at each position of compressor.

But the part among the above-mentioned lubricant oil L that disperses, shown in arrow mark among Fig. 2, flowed down by baffler 11 upper ends, the lubricant oil L that flows down flow to the shield tube 15 of optimum position, baffler 11 bottom, when the oil droplet size of the lubricant oil L that flow to shield tube 15 lower ends reaches one regularly, this lubricant oil L will drop down onto the bottom of seal container 1, but when the oil droplet size of lubricant oil L did not reach to a certain degree, it can not fall, and hang on the lower end of above-mentioned shield tube 15, till reaching a certain size.

So, be suspended from the lubricant oil L of sleeve pipe 15 lower ends, under suction, will be displaced into baffler 11 inside by weep hole 11 ' by the suction stroke of piston 7, and then practicable lubricated between piston 7 and the pressing chamber 6 ' inwall.

But when the lubricant oil L that sucks by weep hole 11 ' is excessive, the problem that the suction of compressor will increase can appear.In order to address the above problem, form inclination cut-out portion 16 in shield tube 15 underparts, restriction hangs on the oil droplet size of the lubricant oil L of shield tube 15, however, the oil droplet size of lubricant oil L that hangs on above-mentioned inclination cut-out portion 16 is still very big comparatively speaking, so suck because excessive lubricant oil L passes through above-mentioned weep hole 11 ', thereby need the problem of the suction of increase compressor still to exist.

This shows that above-mentioned existing hermetic type compressor baffler still has many defectives, and demands urgently further being improved.

In order to solve the problem that above-mentioned hermetic type compressor baffler exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.

Because the defective that above-mentioned existing hermetic type compressor baffler exists, the inventor is based on being engaged in this type of product specification manufacturing abundant for many years practical experience and professional knowledge, actively studied innovation, in the hope of founding a kind of hermetic type compressor baffler of new structure, can improve existing on the market conventional hermetic type compressor muffler structure, make it have more practicability.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.

Summary of the invention

Main purpose of the present invention is, overcomes the defective that existing hermetic type compressor baffler exists, and is that thoroughly control sucks the oil mass in the baffler and a kind of hermetic type compressor baffler of new structure, technical problem underlying to be solved are provided.

Purpose of the present invention and solve its technical problem underlying and realize by the following technical solutions.Hermetic type compressor baffler according to the present invention's proposition, the present invention includes and be built-in with the structure that reduces noise, and be provided with the suction port that can flow into start oil body to inside in the one side, can discharge the main body of the exhaust port of the startup oil body that has reduced noise at its opposite side;

The weep hole that aforementioned body underpart one side forms with body interior and external communications;

Cover and interdict the sleeve pipe that the lubricant oil that falls and reach the main body outside directly reaches weep hole around above-mentioned weep hole;

At above-mentioned shield tube front end, the guide hump that falls with certain-length and width of formation.

The object of the invention to solve the technical problems can also adopt following technical measures further to realize.

The baffler of aforesaid hermetic type compressor, wherein said shield tube front end is tilted with inclination cut-out portion, falls guide hump and is formed at inclination cut-out portion front end.

The present invention compared with prior art has tangible advantage and beneficial effect.By above technological scheme as can be known, for an amount of control is formed at the intake that the lubricant oil of weep hole is also passed through in the main body underpart, the present invention is provided with at the shield tube front end around weep hole and falls guide hump, and by length and the width that falls guide hump being carried out suitable design, can be controlled at falling the oil droplet size of the lubricant oil that guide hump forms.Therefore, what the lubricant oil outside will falling within main body was slick and sly more reaches in the seal container bottom, can also suitably control sucking in the oil mass of seal container inside by weep hole.As mentioned above, in compressor operating, can will suck fuel-flow control in baffler by weep hole, thereby can prevent the rising of compressor suction in the best.

In sum, the baffler of the hermetic type compressor of special construction of the present invention, have above-mentioned many advantages and use value, and in like product, never see have similar structural design to publish or use, no matter and its structurally or bigger improvement is all arranged on the function, have large improvement technically, and produced handy and practical effect, and have the effect of enhancement really, thus be suitable for practicality more, really be a new and innovative, progressive, practical new design.

Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.

Description of drawings

Fig. 1 is the internal structure sectional drawing of general hermetic type compressor;

Fig. 2 is for being arranged at the front elevation of frame according to the hermetic type compressor baffler of prior art;

Fig. 3 is the main composition sectional drawing according to the hermetic type compressor baffler of prior art;

Fig. 4 is front elevation according to one embodiment of present invention;

Fig. 5 is a main composition sectional drawing according to an embodiment of the invention.

Number in the figure

1, seal container 2, frame

3, stator 4, rotor

5, crankshaft 5a, oil groove

5b, centrifugal fin 5c, statocone

5d, aspirator 6, cylinder

6 ', pressing chamber 7, piston

8, connecting rod 9, valve member

10, top cover 11, baffler

12, suction pipe 13, discharge pipe

30, baffler 32, main body

33, joint 34, weep hole

35, sleeve pipe 36, inclination cut-out portion

37, fall guide hump

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of hermetic type compressor baffler, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.

See also Fig. 4, shown in Figure 5, Fig. 4 is the front elevation of the embodiment of the baffler of hermetic type compressor according to the present invention, and Fig. 5 is embodiment's sectional drawing of the hermetic type compressor baffler according to the present invention.

Shown in above-mentioned accompanying drawing, baffler 30 is when reducing the noise that is caused by the startup oil body that is drawn into compressor, will start the device that oil body reaches pressing chamber 6 '.The main body 32 that constitutes this baffler 30 is generally made by synthetic resin, and its inner general division has several chamber thoraxes that interconnect, and can reduce noise when starting oil body successively by above-mentioned chamber thorax.

Main body 32 1 sides are provided with joint 33, and this joint 33 is together fixing with the top cover 10 that is fixed in valve member 9, will play the effect that the startup oil body by main body 32 inside is sent to pressing chamber 6 ', and this joint 33 is provided with exhaust port; The suction ports (not shown) that the startup oil body is reached in the main body 32 are arranged at underpart one side of main body 32, and are communicated in the suction pipe 12 that runs through seal container 1; The mode of communicating of suction pipe 12 and suction port can be directly to be communicated with or indirect communication.

Boring is provided with weep hole 34 below the main body 32, and this weep hole 34 is provided with in order to be mixed in to suck to discharge from the lower end of seal container 1 in the lubricant oil L of the startup oil body of main body 32 inside by above-mentioned suction port; When driven compressor stops, by the lubricant oil L discharge automatically of above-mentioned weep hole 34.

Be provided with sleeve 35 around above-mentioned weep hole 34, this sleeve 35 extends to certain-length to main body 32 bottoms, and these sleeve 35 underparts are tilted with inclination cut-out portion 36.

The whose forwardmost end portions of inclination cut-out portion 36 is that corresponding its lowest positions is formed with and falls guide hump 37, and this falls guide hump 37 and prolongs along the length direction of sleeve 35; As shown in Figure 4, it is more and more narrow downwards to fall the shape of guide hump 37.

Fall the length and the width of guide hump 37, different and different according to baffler 30 employed compressors, promptly in compressor operating, the amount of the oily L that sucks by above-mentioned weep hole 34 for suitable control designs above-mentioned length and the width that falls guide hump 37, promptly is designed to control tie size, the shape that falls the oil droplet of guide hump 37 in above-mentioned.

When falling guide hump 37 and form the big or small above oil droplet that is fit to its length and width, the deadweight of oil droplet is greater than oil droplet and fall adhesion between the guide hump 37, and it will fall; As mentioned above, can prevent that excessive lubricant oil L from sucking by above-mentioned weep hole 34.

Below describe the working procedure of baffler of the hermetic type compressor of the present invention of said structure in detail:

Crankshaft 5 can rotation during Driven Compressor, and lubricant oil L rises by crankshaft 5 internal lubrication oil groove 5a, comes and disperse by centrifugal fin 5b top; The lubricant oil L that disperses plays lubricated and cooling action, and flows down by seal container 1 lower end, and circulation again.

Part among the above-mentioned lubricant oil L that disperses also will reach above-mentioned baffler 30 main bodys 32, and because deadweight, the 32 outer portions of facing down flow away along with main body; Reach the lubricant oil L of main body 32 bottoms,, and transmit to the guide hump 37 that falls that is arranged at sleeve 35 front ends along with sleeve 35 outer circumferential faces flow.

The oil droplet of lubricant oil L attached above-mentioned the falling on the guide hump 37 that be formed on, at this moment, lubricant oil L and fall between the guide hump 37 the deadweight of attached power greater than lubricant oil L oil droplet, if lubricant oil L deadweight is during greater than adhesion, lubricant oil L will fall.

So, when being formed on the oil droplet that falls guide hump 37 and reaching a certain size, will fall; When not reaching a certain size, will be attached to and fall guide hump 37; The aforesaid lubricant oil L that does not reach a certain size and is attached to when falling guide hump 37, and when pressing chamber 6 ' formation negative pressure, lubricant oil L can suck into baffler 30 inside, thereby can suitably control the amount of the lubricant oil L that sucks by weep hole 34.

The technological innovation of the baffler of the hermetic type compressor of the present invention that above-mentioned structure like this constitutes all has many saving graces for technician of the same trade now, and the progressive that possesses skills really.

The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified to the equivalent embodiment of equivalent variations, but every technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.

Claims (2)

1, a kind of baffler of hermetic type compressor, it is characterized in that it comprises the structure that is built-in with the minimizing noise, and be provided with the suction port that can flow into start oil body to inside in the one side, can discharge the main body of the exhaust port of the startup oil body that has reduced noise at its opposite side;

The weep hole that aforementioned body underpart one side forms with body interior and external communications;

Cover and interdict the sleeve pipe that the lubricant oil that falls and reach the main body outside directly reaches weep hole around above-mentioned weep hole;

At above-mentioned shield tube front end, the guide hump that falls with certain-length and width of formation.

2, the baffler of hermetic type compressor according to claim 1 is characterized in that wherein said shield tube front end is tilted with inclination cut-out portion, falls guide hump and is formed at inclination cut-out portion front end.

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