CN104110363A - Compressor and refrigeration cycling device provided with same - Google Patents
Compressor and refrigeration cycling device provided with same Download PDFInfo
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- CN104110363A CN104110363A CN201410318737.8A CN201410318737A CN104110363A CN 104110363 A CN104110363 A CN 104110363A CN 201410318737 A CN201410318737 A CN 201410318737A CN 104110363 A CN104110363 A CN 104110363A
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Abstract
The invention discloses a compressor and a refrigeration cycling device provided with the compressor. The compressor is a reciprocating compressor or a scroll compressor or a slip sheet rotary compressor, and comprises an air cylinder, a fixing device and an exhaust assembly, wherein the fixing device is provided with an exhaust channel, the exhaust channel comprises a central cavity and a peripheral cavity, the peripheral cavity is formed in the outer side of the central cavity and communicated with the central cavity, the exhaust assembly comprises an exhaust valve and a limiting plate, the exhaust valve is arranged in the exhaust channel so as to open or close the inlet end, and the limiting plate is connected to the fixing device and located on one side, facing the outlet end, of the exhaust valve so as to limit movement of the exhaust valve. According to the compressor, gap capacity and exhaust resistance of an exhaust hole can be reduced, the efficiency of the compressor can be improved, and the rigidity of the fixing device can be prevented from being reduced. Meanwhile, the exhaust assembly is small in size and simple in shape, and the exhaust valve is not prone to being damaged by fatigue fracture.
Description
Technical field
The present invention relates to refrigerating field, especially relate to a kind of compressor and there is its refrigerating circulatory device.
Background technique
Indispensable discharge means in compression as electrodynamic type compressor or open compressor---tongue type outlet valve adopted 50 years above.But some reciprocal compressors in correlation technique are in order to adopt tongue type outlet valve, the volume of exhaust port, exhaust port clearance volume is large.On the contrary, adopt in other compressors of tongue type valve, in order to reduce the height of valve, formed the accommodating groove of valve, so exhaust port clearance volume can reduce, have the problem of valve block rigidity reduction.
Scroll compressor in correlation technique, for switch appends the bypass circulation of the overcompression gas of outfit at Jing Panzhong, has adopted tongue type one-way valve.In addition, the opening slide plate rotary compressor in correlation technique has used tongue type valve.Their common problems are: due to tongue type outlet valve or tongue type one-way valve again expansion-loss can increase, the rigidity of control valve unit can reduce.The rigidity of control valve unit reduces, be in reciprocal compressor because hydraulic compression causes valve plate breakage, in rotary compressor, because the pressure distortion from high pressure gas silencing apparatus to compression chamber increases, slide plate can produce abrasion, efficiency can reduce.
Summary of the invention
The present invention is intended to solve at least to a certain extent one of technical problem in correlation technique.
For this reason, one object of the present invention is to propose a kind of compressor, lowers exhaust port clearance volume and exhaust resistance, improves the efficiency of compressor.
Another object of the present invention is to propose a kind of refrigerating circulatory device with above-mentioned compressor.
According to the compressor of the embodiment of the present invention, described compressor is reciprocal compressor, scroll compressor or slide plate rotary compressor, and described compressor comprises: the cylinder with compression chamber, fixing device, described fixing device is connected to described cylinder and described fixing device is provided with the exhaust passage being communicated with described compression chamber, described exhaust passage comprises center cavity and periphery chamber, described periphery chamber is located at the outside of described center cavity and is communicated with described center cavity, one end of the described compression chamber of vicinity of described center cavity limits the entry end of described exhaust passage, the one end away from described compression chamber in one end away from described compression chamber of described center cavity and described periphery chamber limits the outlet end of described exhaust passage: and discharge means, described discharge means comprises outlet valve and limiting board, described outlet valve is located in described exhaust passage to open or close described entry end, the side towards described outlet end that described limiting board is connected to described fixing device and is positioned at described outlet valve is to limit the moving displacement of described outlet valve.
According to the compressor of the embodiment of the present invention, by being provided with the discharge means that comprises outlet valve and limiting board, thereby can lower exhaust port clearance volume and exhaust resistance, not only can improve the efficiency of compressor, and can evade the rigidity reduction of fixing device.While discharge means structure is little, simple shape, is not easy because fatigue ruption causes outlet valve breakage.
In addition, compressor according to the above embodiment of the present invention can also have following additional technical characteristics:
In some embodiments of the invention, described periphery chamber is formed as the annular groove around described center cavity.
In other embodiments of the present invention, described periphery chamber is multiple, described multiple peripheries chamber is circumferentially evenly spaced apart around described center cavity, the perisporium of described center cavity is provided with multiple intercommunicating pores, described multiple intercommunicating pores and described multiple peripheries chamber one by one corresponding setting so that described center cavity is communicated with each described periphery chamber.
According to some embodiments of the present invention, the diapire relative with described outlet end in the perisporium in described periphery chamber and/or described periphery chamber tilts to extend towards the central axis of described exhaust passage on the direction from described outlet end to described entry end.
In specific embodiments more of the present invention, described outlet valve is multiple, and described multiple outlet valves are stack successively on the direction from described entry end to described outlet end.
Particularly, the inner circle wall of described center cavity is provided with the restraining groove for holding described limiting board.
In further embodiment of the present invention, described discharge means also comprises elastic component, and described elastic component is located in described exhaust passage and the two ends of described elastic component are only against respectively on described outlet valve and described limiting board.
Alternatively, described elastic component is cylindrical wires coil spring, copl spring or drum winding spring.
Further, described discharge means also comprises supporting element, and described supporting element is located between described elastic component and described limiting board, and one end of described elastic component is only against on described supporting element.
According to the refrigerating circulatory device of the embodiment of the present invention, comprise compressor according to the above embodiment of the present invention.
Brief description of the drawings
Fig. 1 is relevant with embodiments of the invention 1, the longitudinal section of expression reciprocal compressor inside;
Fig. 2 is relevant with embodiment 1, the discharge valve apparatus possessing in valve plate and the sectional view of cylinder head;
Fig. 3 is relevant with embodiment 1, the planimetric map of valve plate and sectional view;
Fig. 4 is relevant with embodiment 1, the sectional view of valve plate;
Fig. 5 is relevant with embodiment 1, the ssembly drawing of valve plate;
Fig. 6 is relevant with embodiment 1, and the assembling of valve plate completes figure;
Fig. 7 is relevant with embodiment 1, the performance plot of line style and non-linearity coil spring;
Fig. 8 completes figure with embodiments of the invention 2 assembling relevant, valve plate;
Fig. 9 is correlated with, possesses the application cases of design of silencing apparatus with embodiment 2;
Figure 10 is relevant with embodiment 2, possesses the application cases of design of 2 sections of silencing apparatuss;
Figure 11 is relevant to embodiments of the invention 3, and valve plate group has been found figure and this sectional view.
Embodiment
Describe embodiments of the invention below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment who is described with reference to the drawings, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " axially ", " radially ", orientation or the position relationship of instructions such as " circumferentially " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of device or the element of instruction or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or integral; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
Describe according to the compressor of the embodiment of the present invention below with reference to Fig. 1-Figure 11, wherein compressor is reciprocal compressor, scroll compressor or slide plate rotary compressor.This compressor can be mounted in the refrigerating circulatory device such as aircondition, fridge-freezer.
Comprise according to the compressor of the embodiment of the present invention: cylinder, fixing device and the discharge means with compression chamber.Wherein, the exhaust passage in venting gas appliance and fixing device limits following discharge valve apparatus.
Fixing device is connected to cylinder and fixing device is provided with the exhaust passage being communicated with compression chamber.It should be noted that, fixing device refers to and is arranged on cylinder for carrying the parts of discharge means, and for example, in the time that compressor is reciprocal compressor, fixing device is cylinder head.Also need to describe, in the time that compressor is reciprocal compressor, scroll compressor or slide plate rotary compressor, the working principle of compressor etc. is prior art, is not just described in detail here simultaneously.
Exhaust passage comprises center cavity 60 and periphery chamber 62, periphery chamber 62 is located at the outside of center cavity 60 and is communicated with center cavity 60, one end of the contiguous compression chamber of center cavity 60 limits the entry end (being following exhaust port 50) of exhaust passage, and the one end away from compression chamber in one end away from compression chamber of center cavity 60 and periphery chamber 62 limits the outlet end of exhaust passage.
Discharge means comprises outlet valve 55 and limiting board, and outlet valve 55 is located in exhaust passage to open or close entry end, and limiting board is connected to fixing device and is positioned at the side towards outlet end of outlet valve 55 with the moving displacement of restriction outlet valve 55.Wherein, limiting board can be the limiting board 70 shown in following embodiment 1 and embodiment 2, and limiting board can also be the limiting board 97 shown in embodiment 3.In the example of Fig. 1-Figure 10, the inner circle wall of center cavity 60 is provided with the restraining groove 74 for holding limiting board 70.In the example depicted in fig. 11, limiting board 97 is fixed in fixing device by stop screw 98.
The gas of discharging from compression chamber is drained into by entry end in the center cavity 60 of exhaust passage, and a part of gas distribution in center cavity 60 is in periphery chamber 62, and the gas in last center cavity 60 and the gas in periphery chamber 62 are discharged from the outlet end of exhaust passage.
According to the compressor of the embodiment of the present invention, by being provided with the discharge means that comprises outlet valve 55 and limiting board, thereby can lower exhaust port clearance volume and exhaust resistance, not only can improve the efficiency of compressor, and can evade the rigidity reduction of fixing device.While discharge means structure is little, simple shape, is not easy because fatigue ruption causes outlet valve breakage.
In some embodiments of the invention, periphery chamber 62 is formed as the annular groove around center cavity 60.Thereby can reduce the overall dimensions of discharge means, and can expand exhaust passage.
In other embodiments of the present invention, periphery chamber 62 is multiple, multiple peripheries chamber 62 is circumferentially evenly spaced apart around center cavity 60, the perisporium of center cavity 60 is provided with multiple intercommunicating pore 60b, multiple intercommunicating pore 60b and multiple peripheries chamber 62 one by one corresponding setting so that center cavity 60 is communicated with each periphery chamber 62.
In specific embodiments more of the present invention, the diapire relative with outlet end in the perisporium in periphery chamber 62 and/or periphery chamber 62 tilts to extend towards the central axis of exhaust passage in the direction from outlet end to entry end.
According to some embodiments of the present invention, outlet valve 55 is multiple, and multiple outlet valves 55 are stack successively in the direction from entry end to outlet end.
According to a further embodiment of the invention, discharge means also comprises elastic component (being following valve spring 72), and elastic component is located in exhaust passage and the two ends of elastic component are only against respectively on outlet valve 55 and limiting board.Alternatively, elastic component is cylindrical wires coil spring, copl spring or drum winding spring.
Further, discharge means also comprises supporting element, and supporting element is located between elastic component and limiting board, and one end of elastic component is only against on supporting element.Wherein supporting element can be plectane, and the center of plectane can arrange projection, in case the dislocation of principal vertical line coil spring central shaft.
According to the refrigerating circulatory device of the embodiment of the present invention, comprise compressor according to the above embodiment of the present invention.
Describe in detail according to the compressor of the specific embodiment of the invention below with reference to Fig. 1-Figure 11, in the following description taking compressor as reciprocal compressor as example describes.
Embodiment 1:
Reciprocal compressor 10 shown in Fig. 1, possesses in container 12 lubricant oil (without diagram) of the bottom storage of the motor drive mechanism 13 of storage and compressing mechanism 14, container 12.Compressing mechanism 14 possesses: the eccentric shaft 17 that driven by motor drive mechanism 13, its slide frame 15, the piston 18 that is connected reciprocal driving cylinder 22 with connecting rod 19, built-in cylinder 22 of supporting are fixed on cylinder block 20 in frame 15, are fixed on valve board assembly 30 and cylinder head 40 on the opening end of cylinder 22 by 4 cylinder screws 45.In addition, inhaling silencer 32 and outlet pipe 58 in cylinder head 40, have been connected.
In cylinder 22, the chamber that the lower dead center of piston 18 and valve board assembly 30 form is compression chamber 23.In compression chamber 23, reciprocating Aspirating valves 48 opens and closes the suction port 31 (shown in Fig. 2) possessing in valve board assembly 30.
Fig. 2 represents valve board assembly 30, the sectional view of cylinder head 40, Aspirating valves sealed department 46 and compression chamber 23 around them.The discharge valve apparatus 50 possessing in valve board assembly 30 possesses: exhaust port 51 to compression chamber 23 openings, outlet valve 55, limiting board 70, the center cavity 60 that the valve spring 72 possessing between outlet valve 55 and limiting board 70 is received, the periphery chamber 62 being communicated with center cavity 60 in its outside.
The low-pressure cavity 37 and the hyperbaric chamber 38 that cover the cylinder head 40 of valve board assembly 30, distinguish sealing by partition wall 39 form.The sucking pipe 32a that connects inhaling silencer 32 has connected low-pressure cavity 37, inlet hole 31 from low-pressure cavity 37 to compression chamber 23 openings.The Aspirating valves 48 switch suction ports 31 that possess in Aspirating valves sealed department 46.In addition, outlet valve 55 switch valve seats 52.
The low-pressure gas of the inside of container 12, flow into compression chamber 23 by sucking pipe 32a and low-pressure cavity 37 from inhaling silencer 32.Afterwards, compressed by piston 18, form pressurized gas, discharge to outlet pipe 58 from hyperbaric chamber 38 by exhaust port 51 and outlet valve 55 and periphery chamber 62.
Valve plate 35 shown in Fig. 3, the exhaust port 51 of processing by center cavity 60, with 3 conical periphery chambeies 62 of this interior Zhou Liantong, in the bottom of center cavity 60, the circular valve seat 52 possessing in the periphery of exhaust port 51 have determined plane shape.By with being communicated with of periphery chamber 62, having in interior week between 3 intercommunicating pore 60b openings, these intercommunicating pores 60b of center cavity 60 has 3 inwalls.
Intercommunicating pore 60b is the gas channel from exhaust port 51 to periphery chamber 62, and inwall aspect, has formed the valve guide plate 60a moving vertically for outlet valve 55.In addition, above-mentioned plane shape is unidirectional machining, so easy to manufacture.In addition, this plane shape is made method by powder metallurgic method or Forging and is carried out moulding, just can omit machining.And the shapes of center cavity 60, periphery chamber 62, valve seat 52 etc. are still circular, such as the shapes such as ellipse, rectangular, cone type and their degree of depth can be optimized with 3D.
The gas channel volume of the valve seat 52 forming from the lower end surface of valve plate 35 to the size H of the upper-end surface of valve seat 52, after outlet valve 55 is closed, becomes the exhaust port clearance volume (clearance volume) of expansion-loss again at compression chamber 23.Therefore, require size H to reduce as far as possible.
The present invention, even size reduction has just reduced the rigidity of interior all bottom surfaces of center cavity 60, due to 62 the remaining wall thickness parts in periphery chamber (undressed part), center cavity 60 can maintain rigidity.Therefore, with employing tongue type valve, the design in the past that reduces valve seat size H is compared, and the rigidity of valve plate 35 of the present invention can be enough large.And if necessary, as shown in Figure 4, using the bottom in periphery chamber 62 as conical surface 62a or cone type, wall thickness is thickeied, and can improve the rigidity of the periphery in periphery chamber 62.
In addition, for fear of reducing rigidity, the wall thickness of valve pool (H) is strengthened, due to the increase of exhaust port clearance volume, refrigerating capacity can decline.Such as, exhaust port clearance volume is 1% of discharge capacity (maximum volume of compression chamber 23), compression ratio is approximately 4, and the loss of the refrigerating capacity of air condition compressor nearly 4%, compression ratio is approximately 10, refrigeration compressor is approximately 10% loss.
Fig. 5, be assembled in separately the assembling sequence in valve plate 35 by outlet valve 55, valve spring 72, limiting board 70.Valve seat 52 tops that outlet valve 55 is processed on center cavity 60, afterwards, have placed valve spring 72 on the top of outlet valve 55 limiting board 70 have been inserted in restraining groove.Its result, has completed valve board assembly 30 as shown in Figure 6.And at this, valve spring 72 has used compression circular cone coil spring.
Next,, according to Fig. 2, the effect of discharge valve apparatus 50 is described.
When piston 18 forwards exhaust stroke to from suction stroke, Aspirating valves 48 cuts out, and starts compression stroke.After more than the pressure of the pressure arrival hyperbaric chamber 38 of compression chamber 23, outlet valve 55 rises from valve seat 52, exhaust port 51 perforates, and when increasing with air displacement, the aperture of exhaust port 51 can increase.Valve spring 72 further compresses, and when air displacement is maximum, the path increment of outlet valve 55 is maximum, in a flash, stops on the top of valve spring 72.
Thereafter, due to the reducing of air displacement, outlet valve 55 starts to decline, air displacement is from zero or be switched to moment of suction stroke, outlet valve 55 arrives on valve seat 52, closes exhaust port 51.Meanwhile, Aspirating valves 48 is opened suction port 31 and is switched to suction stroke.The pressurized gas of discharging from exhaust port 51 in above-mentioned exhaust stroke, by 3 intercommunicating pore 60b etc. points shunting to periphery chamber 62, be discharged in hyperbaric chamber 38.
In above stroke, 3 valve guide plate 60a make the horizontal displacement minimum of outlet valve 55, make the knee-action of outlet valve 55 smooth.And valve spring 72 is controlled posture, conventionally outlet valve 55 to be pressed and pressed along the direction of valve seat 52 by spring force, outlet valve 55 is parallel with valve seat 52 to be moved up and down.
Therefore, shape design and spring force (F) and the spring constant of the circumferential play of outlet valve 55 (C), valve spring 72, and the optimization of the knee-action of outlet valve 55 long (path increment of S, valve) is extremely important.But, according to the kind of the refrigerating capacity of compressor, service condition, refrigerant, also have the rotational speed etc. of eccentric shaft to be optimized above-mentioned design.
At this, the knee-action length (S) of outlet valve 55, compared with tongue type valve in the past, can reduce a lot.For this reason, in the present invention, parallel the moving up and down of face of outlet valve 55 and valve seat 52, so from exhaust port 51 pressurized gas out towards the impartial shunting of 3 intercommunicating pore 60b.Tongue type valve is in the past taking fixed end as fulcrum knee-action, thus from exhaust port pressurized gas out mainly towards the first extreme direction exhaust of tongue type valve.
The knee-action length of the outlet valve 55 of the compressor that for the above reasons, discharge flow rate is few can reduce.Therefore, even omit spring 72, also no problem aspect the stability of outlet valve 55.In addition, the feature that knee-action length can diminish is favourable to reducing noise.
In embodiment 1, the quantity in periphery chamber 62 is 3, but quantity can be increased to 4 or also passable above as required.And shown in embodiment 3, the quantity in periphery chamber 62 is 2 also passable.In addition, discharge valve apparatus is if miniaturization, and the quantity in periphery chamber 62 can be also 1.
3 periphery chambeies 62, by equal angles (120 degree) configuration, as the gas that the above-mentioned therefrom chambers of the heart 60 is discharged, can equalization be diverted in periphery chamber 62.Its result, the posture of outlet valve 55 can be stablized, and also can reduce exhaust resistance.But if having skew from exhaust port 51 air displacement or gas velocity out, the arrangement angles on periphery chamber 62 also can be adjusted.
Next, the alternate design of valve spring 72 is described.In embodiment 1, the viewpoint of evading that contacts of the stable control of exhaust port 51 and the periphery of valve spring 72 and valve guide plate 60a, use copl spring, but cylindrical coil spring and drum winding spring, the drum type coil spring that central part external diameter is large also can use.
The outside dimension of coil spring end is little more more than the internal diameter of center cavity 60 or valve guide plate 60a, can not use the limiting board 70 of C shape.As its countermeasure, between limiting board 70 and coil spring end, need to append thin plectane.In addition, the center of this plectane is provided with protruding, can prevent the dislocation of coil spring central shaft.
And, the method of the non-linearity coil spring that adopt the outside diameter of type coil or the little side of coil tooth pitch to start to compress, spring constant can increase, has carried the efficiency raising aspect that air displacement changes the variable speed compressor of large compressor and variable-frequency motor etc. and has produced effect very much.
Fig. 7 be line style coil spring 1. with the concept of non-linearity coil spring comparison 2..S is the running length of outlet valve 55, and S1 and S2 are respectively that coil spring maximum stroke 1. and is 2. long, and F acts on the initial stage load that spring force (load), F1 and F2 on outlet valve 55 is effect when being 0 of the stroke length of each coil spring.
If the non-linearity coil spring 2. stroke of outlet valve 55 becomes large, coil spring starts to compress, and spring constant will increase together with the running length of outlet valve 55.That is, with being in proportion of stroke, spring constant can increase, so can increase the load of outlet valve 55.Therefore, increase considerably even if stroke is long, the posture of outlet valve 55 also can settle out.
The present invention is because the shape of outlet valve 55 is small-sized and simple, so easily cause the breakage of valve block being characterized in resembling in the past due to fatigue ruption.In addition, as follows shape is changed, use the method for utilizing of several valves also to have.Below the alternate design case of outlet valve 55 is described.
Peripheral shape is that the outlet valve of simple circle is the most general, easily uses.But, in center cavity 60, have the words of several exhaust ports can adopt oval-shaped valve.2 of outlet valves in addition, or the method for several pieces overlapping uses also has.If the thickness of valve is thin in this design, can improve to the compression aspect of valve seat, so Leakage Gas can reduce, the efficiency of compressor has the effect of improvement.
And the words that drop on the thin thickness of the outlet valve on valve seat 52 can adopt further improves the method compressing.In addition, by the outlet valve of various outer diameter size, or design through hole in a side outlet valve, can make the having stable behavior of outlet valve, or make in addition the method for the concentrated dispersion of the stress of outlet valve.
Embodiment 2:
As Fig. 8
shown in, the valve plate 36 therein centre of the chambers of the heart 60 possesses the outside of exhaust port 51, center cavity 60, has configured the annular groove 63 diminishing towards the internal diameter of bottom.In this design, annular groove 63 is equivalent to embodiment 1 periphery chamber 62.In addition, if necessary, with respect to center cavity 60, can make annular groove 63 center bias.
The exhaust passages of discharging to circular groove 63 from exhaust port 51 from 4 intercommunicating pore 60b of interior outer radial periphery chamber 63 openings of center cavity 60.The wall of the thin-walled forming between 2 adjacent intercommunicating pore 60b is 4 valve guide plate 60a.And the inner side of these valve guide plates 60a has possessed restraining groove.Has installed after outlet valve 55 and valve spring 72 and limiting board 70 center cavity 60 inside, Fig. 8's
shown valve board assembly 33 has just completed.
In embodiment 2, the periphery chamber of valve plate 36 is made up of 1 annular groove 63, so the overall dimensions of discharge valve apparatus 53 can be dwindled.And can expand from exhaust port 51 exhaust passage out.
As Fig. 9
with
in the plectane restraining groove 75 that the interior Zhou Shangduan of the annular groove that is shown in 63 possesses, be pressed into the periphery of fixed disc 71, in the space portion that annular groove 63 surrounds, can form noise elimination cavity 77.Its result, 4 silencing apparatus hole 71a that possess from plectane 71 by annular groove 63 from exhaust port 51 exhaust out start to be discharged in the hyperbaric chamber 38 of cylinder head 40.Therefore, noise elimination cavity 77 and hyperbaric chamber 38 are respectively the exhaust silencer of first paragraph and second segment, can further improve the effect of noise reduction.
And annular groove 63 is still miniaturization not, its processing be also simple easily, so as Figure 10, can using valve board assembly 33 and cylinder head 40 is integrated be also fine as the cylinder head 44 with outlet valve afterwards.In this design, because the rigidity of cylinder head can be improved, so the noise that Aspirating valves 31 and outlet valve 55 produce can be reduced.In addition, more favourable from the viewpoint of the packaging efficiency raising of compressor.
The manufacture method aspect of the cylinder head 44 in addition, with outlet valve, first, is used the core that 38 moulding are used to hyperbaric chamber, and cylinder head foundry goods is cast., make machining hole 79, for assembling and processing discharge valve apparatus 53 thereafter.,, from machining hole 79, discharge valve apparatus 53 is carried out to necessary processing thereafter.After cylinder head foundry goods is clean, carry out the assembling of outlet valve from machining hole 79, thereafter, machining hole 79 use top boards 78 seal.
Like this present invention is exactly, and valve plate processing and outlet valve assembling can be carried out from a direction, and the assembling such as outlet valve insertion is more small-sized, easy, and advantage is that discharge valve apparatus can be accommodated in Seal cage.In addition, like this, the seal aspect of discharge valve apparatus, not embodiment 2 still, is also possible in embodiment 1 and embodiment described later 3, is the design form that can utilize full content of the present invention.
Embodiment 3:
The limiting board of outlet valve with and fixation method aspect have several options.Compared with Fig. 4, Figure 11's
the thickness of slab of shown valve plate 95 is thinner, so the limiting board 70 of the uses such as Fig. 6 can not use.Therefore,, in the plane of valve plate 95, the limiting board 97 of sheet metal processing can be fixed by 2 stop screws 98.Its result, by Figure 11's
shown in completed the assembling of valve plate 96.In addition, embodiment 3 valve plate 95 possesses 2 the periphery chambeies 62 relative with the periphery of 1 center cavity 60.
Need to describe, can use discharge valve apparatus shown in the present, use as one-way valve.Therefore, announcement technology of the present invention be possess outlet valve discharge valve apparatus be illustrated as main body, the explanation of having omitted check valve apparatus.The difference of outlet valve and one-way valve is in addition: outlet valve is according to the rotary switch exhaust port of motor or eccentric shaft, and one-way valve opens and closes exhaust port by pressure reduction temporarily.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic " 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, First Characteristic Second Characteristic " on ", " top " and " above " but First Characteristic directly over Second Characteristic or oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " can be First Characteristic under Second Characteristic or tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And, specific features, structure, material or the feature of description can one or more embodiments in office or example in suitable mode combination.In addition,, not conflicting in the situation that, those skilled in the art can carry out combination and combination by the feature of the different embodiments that describe in this specification or example and different embodiment or example.
Although illustrated and described 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, amendment, replacement and modification.
Claims (10)
1. a compressor, is characterized in that, described compressor is reciprocal compressor, scroll compressor or slide plate rotary compressor, and described compressor comprises:
There is the cylinder of compression chamber;
Fixing device, described fixing device is connected to described cylinder and described fixing device is provided with the exhaust passage being communicated with described compression chamber, described exhaust passage comprises center cavity and periphery chamber, described periphery chamber is located at the outside of described center cavity and is communicated with described center cavity, one end of the described compression chamber of vicinity of described center cavity limits the entry end of described exhaust passage, and the one end away from described compression chamber in one end away from described compression chamber of described center cavity and described periphery chamber limits the outlet end of described exhaust passage: and
Discharge means, described discharge means comprises outlet valve and limiting board, described outlet valve is located in described exhaust passage to open or close described entry end, and the side towards described outlet end that described limiting board is connected to described fixing device and is positioned at described outlet valve is to limit the moving displacement of described outlet valve.
2. compressor according to claim 1, is characterized in that, described periphery chamber is formed as the annular groove around described center cavity.
3. compressor according to claim 1, it is characterized in that, described periphery chamber is multiple, described multiple peripheries chamber is circumferentially evenly spaced apart around described center cavity, the perisporium of described center cavity is provided with multiple intercommunicating pores, described multiple intercommunicating pores and described multiple peripheries chamber one by one corresponding setting so that described center cavity is communicated with each described periphery chamber.
4. compressor according to claim 1, it is characterized in that, the diapire relative with described outlet end in the perisporium in described periphery chamber and/or described periphery chamber tilts to extend towards the central axis of described exhaust passage on the direction from described outlet end to described entry end.
5. compressor according to claim 1, is characterized in that, described outlet valve is multiple, and described multiple outlet valves are stack successively on the direction from described entry end to described outlet end.
6. compressor according to claim 1, is characterized in that, the inner circle wall of described center cavity is provided with the restraining groove for holding described limiting board.
7. compressor according to claim 1, is characterized in that, described discharge means also comprises elastic component, and described elastic component is located in described exhaust passage and the two ends of described elastic component are only against respectively on described outlet valve and described limiting board.
8. compressor according to claim 7, is characterized in that, described elastic component is cylindrical wires coil spring, copl spring or drum winding spring.
9. compressor according to claim 8, is characterized in that, described discharge means also comprises supporting element, and described supporting element is located between described elastic component and described limiting board, and one end of described elastic component is only against on described supporting element.
10. a refrigerating circulatory device, is characterized in that, comprises according to the compressor described in any one in claim 1-9.
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| CN201410318737.8A CN104110363B (en) | 2014-07-04 | 2014-07-04 | Compressor and refrigeration cycling device provided with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287943A (en) * | 2018-12-06 | 2020-06-16 | 上海海立电器有限公司 | Compressor with a compressor housing having a plurality of compressor blades |
| WO2021090355A1 (en) * | 2019-11-05 | 2021-05-14 | 三菱電機株式会社 | Compressor |
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| 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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| US5110272A (en) * | 1989-06-07 | 1992-05-05 | Aspera S.R.L. | Valve unit for a reciprocating compressor for refrigerators and the like |
| JPH06288375A (en) * | 1993-04-02 | 1994-10-11 | Mitsubishi Electric Corp | Discharge valve device of compressor |
| CN1221857A (en) * | 1997-12-30 | 1999-07-07 | Lg电子株式会社 | Discharge valve system for linear compressor |
| US20040136851A1 (en) * | 2003-01-15 | 2004-07-15 | Rechi Precision Co., Ltd. | Compressor check valve |
| 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287943A (en) * | 2018-12-06 | 2020-06-16 | 上海海立电器有限公司 | Compressor with a compressor housing having a plurality of compressor blades |
| CN111287943B (en) * | 2018-12-06 | 2022-02-11 | 上海海立电器有限公司 | Compressor |
| WO2021090355A1 (en) * | 2019-11-05 | 2021-05-14 | 三菱電機株式会社 | Compressor |
| JP6892042B1 (en) * | 2019-11-05 | 2021-06-18 | 三菱電機株式会社 | Compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104110363B (en) | 2017-02-01 |
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