CN207935094U - The pump housing and hermetic compressor of hermetic compressor - Google Patents

Abstract

The utility model discloses a kind of pump housing of hermetic compressor and hermetic compressor, the pump housing includes：First bearing, first cylinder, first partition, second partition, second cylinder and second bearing, first bearing and first partition are enclosed in the both ends of the first cylinder to form the first cylinder chamber, second bearing and second partition are enclosed in the both ends of the second cylinder to form second cylinder chamber, first partition and second partition recline fixation, first bearing is formed with first bearing gas vent, first partition is formed with first partition gas vent, second bearing is formed with second bearing gas vent, second partition is formed with second partition gas vent, the diameter D1 of first bearing gas vent, the diameter D2 of first partition gas vent, the diameter D3 of second partition gas vent and the diameter D4 of second bearing gas vent meet following relationship：D1=D2=D3=D4.As a result, the pump housing its with larger gas vent sectional area, be quickly discharged conducive to high pressure gas, improve the efficiency of compressor.

Description

The pump housing and hermetic compressor of hermetic compressor

Technical field

The utility model is related to the pump housing of Compressor Technology field more particularly to a kind of hermetic compressor and with should The hermetic compressor of the pump housing.

Background technology

In the related technology, patent document 1：CN201280046586.4 discloses a kind of hermetic compressor, the compressor In closing shell receiving motor and by with the bent shaft-driven pump housing of the motor, be arranged via partition board in the pump housing a pair of up and down Cylinder compresses gas refrigerant in the cylinder chamber being formed in each cylinder, compressed refrigerant by air bleeding valve to closing shell The inner space of body is discharged.

Wherein, first bearing gas vent and are respectively formed in the first bearing and second bearing of the hermetic compressor Two bearing gas vents are respectively formed with first partition gas vent and second partition gas vent, institute in first partition and second partition The sectional area for stating first partition gas vent is less than the sectional area of first bearing gas vent, the sectional area of the second partition gas vent Less than the sectional area of second bearing gas vent, to the maximum opening for the exclusion valve block that first partition board gas vent is opened and closed It is set to be less than the maximum opening for the exclusion valve block that the first bearing gas vent is opened and closed, the second partition is arranged The maximum opening for the discharge valve block that stomata is opened and closed is set to be less than the row closed to the second bearing gas vent Except the maximum opening of valve block.

Wherein, although the design is conducive to improve the pressure fluctuation of partition board noise elimination indoor gas, but work as partition board gas vent Sectional area be less than bearing gas vent sectional area when, cylinder chamber be discharged high-pressure refrigerant effective flow area reduce, cause The efficiency of compressor reduces.In addition the gas vent of different cross-sectional need to design the exhaust valve plate of different size, thus be unfavorable for pair Exhaust valve plate specification is standardized, and increases the design cost of product.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model carries Go out a kind of pump housing of hermetic compressor, which can improve the efficiency of hermetic compressor, and can reduce cost.

The utility model further proposes a kind of hermetic compressor.

The pump housing of hermetic compressor according to the present utility model, including：First bearing, the first cylinder, first partition, Two partition boards, the second cylinder and second bearing, the first bearing and the first partition are enclosed in the two of first cylinder To form the first cylinder chamber, the second bearing and the second partition are enclosed in the both ends of second cylinder to form second at end Cylinder chamber, the first partition and the second partition recline fixation, and the first bearing is formed with first bearing gas vent, described First partition is formed with first partition gas vent, and the second bearing is formed with second bearing gas vent, the second partition shape At there is second partition gas vent, wherein the diameter D1 of the first bearing gas vent, the first partition gas vent diameter The diameter D4 of D2, the diameter D3 of the second partition gas vent and the second bearing gas vent meet following relationship：D1= D2=D3=D4.

The pump housing of hermetic compressor according to the present utility model in this way can be with larger gas vent sectional area Be conducive to high pressure gas to be quickly discharged from compression cylinder chamber, reduce exhaust resistance, improve the efficiency of compressor.Simultaneously by will be every The diameter of plate gas vent is set equal to the diameter of bearing gas vent, it is possible to reduce the specification quantity of exhaust valve plate, it can be advantageous It is standardized in exhaust valve plate, the production cost of product can be reduced.

In some examples of the utility model, the first bearing gas vent and the first partition gas vent are corresponding Have exhaust valve plate, the maximum opening H1 for the exhaust valve plate that the first bearing gas vent is opened and closed with to the first partition The maximum opening H2 for the exhaust valve plate that gas vent is opened and closed meets following relationship：H2 ＜ H1.

In some examples of the utility model, the second partition gas vent is also corresponding with exhaust valve plate, to described The maximum opening H2 for the exhaust valve plate that one partition board gas vent is opened and closed and the row that the second partition gas vent is opened and closed The maximum opening H3 of air valve plate meets following relationship：H2=H3.

In some examples of the utility model, the second bearing gas vent is corresponding with exhaust valve plate, to described second The maximum opening H4 for the exhaust valve plate that bearing gas vent is opened and closed and the exhaust that the first bearing gas vent is opened and closed The maximum opening H1 of valve block meets following relationship：H1=H4.

In some examples of the utility model, the first partition and the second partition be respectively formed it is fluted, two A groove, which corresponds to, constitutes partition board anechoic room.

In some examples of the utility model, the first bearing is provided with the first silencer, and the second bearing is set It is equipped with the second silencer.

In some examples of the utility model, the first partition and the second partition constitute one by spring catch It is whole.

In some examples of the utility model, the first partition, the second partition, second cylinder and described Second bearing is fixed on the lower section of first cylinder by fastener.

In some examples of the utility model, the first partition and the second partition are about reclining between the two Horizontal plane is symmetrical.

Hermetic compressor according to the present utility model includes the pump housing of the hermetic compressor.

The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description In become apparent, or recognized by the practice of the utility model.

Description of the drawings

The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination following accompanying drawings to embodiment Become apparent and is readily appreciated that, wherein：

Fig. 1 is the sectional view according to the hermetic compressor of the utility model embodiment；

Fig. 2 is the partial sectional view of first bearing exhaust structure；

Fig. 3 is the partial sectional view of first partition exhaust structure；

Fig. 4 is the partial sectional view of second partition exhaust structure；

Fig. 5 is the partial sectional view of second bearing exhaust structure.

Reference numeral：

100- hermetic compressors；

101- closes shell；102- motors；102A- stators；102B- rotors；103- bent axles；The upper eccentric parts of 103A-； Eccentric part under 103B-；

The first silencers of 104-；The first anechoic rooms of 104A-；104B- ventholes；The first rollers of 105-；

The first cylinders of 106-；The first cylinder chambers of 106A-；The first springs of 107-；The first slide plates of 108-；

The second cylinders of 109-；109A- second cylinder chambers；110- partition board anechoic rooms；111- second springs；The second slide plates of 112-； The second rollers of 113-；

The second silencers of 114-；The second anechoic rooms of 114A-；Screw 115；The 116- pump housings；Screw 117；

200- first bearings；201- first bearing grooves；202- first bearing lift stoppers；203- first bearing rivetings Nail；204 first bearing gas vents；205- first bearing exhaust valve plates；

300- first partitions；301- first partition grooves；302- first partition lift stoppers；303- first partition rivetings Nail；304- first partition gas vents；305- first partition exhaust valve plates；

400- second partitions；401- second partition grooves；402- second partition lift stoppers；403- second partition rivetings Nail；404- second partition gas vents；405- second partition exhaust valve plates；

500- second bearings；501- second bearing grooves；502- second bearing lift stoppers；503- second bearing rivetings Nail；504- second bearing gas vents；505- second bearing exhaust valve plates.

Specific implementation mode

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model Limitation.

In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on ... shown in the drawings Or position relationship, be merely for convenience of describing the present invention and simplifying the description, do not indicate or imply the indicated device or Element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the utility model System.In addition, defining " first ", the feature of " second " can explicitly or implicitly include one or more this feature. In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition The concrete meaning of language in the present invention.

Below with reference to the accompanying drawings the hermetic compressor 100 according to the utility model embodiment is described in detail.

Referring to Fig. 1, hermetic compressor 100 described in the utility model includes the closing shell of approximate cylinder shape 101, in the motor 102 of the top setting of closing shell 101 and in the pump housing 116 of its underpart setting.In closing shell 101 Bottom storage has the lubricating oil of the lubrication pump housing, closes in shell and is filled with the high pressure gas being discharged from the pump housing 116.

Motor 102 has stator 102A, rotor 102B and bent axle 103.Stator 102A is fixed on closing shell by hot jacket The upper end of body 101, rotor 102B are inserted into the inside of stator 102A, and the center portion thereof is inserted with bent axle 103, and bent axle 103 is by rotor Rotary motion passes to the pump housing 116.

It is formed with columned upper eccentric part 103A and lower eccentric part 103B in the lower end of bent axle 103, upper eccentric part 103A, The eccentric direction of lower eccentric part 103B on the contrary, the two angle on the direction of rotation of bent axle 103 is 180 degree, upper eccentric part 103A, Lower eccentric part 103B is in the axial direction at a distance of certain size.

The pump housing 116 is driven by the bent axle 103 of motor 102, along the axial direction of bent axle 103 be disposed with first bearing 200, First silencer 104, the first cylinder 106, first partition 300, second partition 400, the second cylinder 109, second bearing 500 and Second silencer 114.

First silencer 104 is the hollow housing for being fixed on 200 upper surface of first bearing, has been formed in the interior thereof first and has disappeared Sound chamber 104A, venthole 104B is offered on the first silencer 104, and the high pressure gas that the pump housing 116 is discharged can pass through venthole 104B discharge the inside of closing shell 101 from the first anechoic room 104A.

Second silencer 114 is fixed on the lower end of second bearing 500, inside be formed with the second anechoic room 114A.

First bearing 200 is set to by what is be welded and fixed in closing shell 101, and the first cylinder 106 is solid by screw 117 It is sealed by first bearing 200 due to the upper surface of the lower face of first bearing 200, the first cylinder 106, under the first cylinder 106 End face is sealed by first partition 300, forms the first cylinder chamber 106A；The upper surface of second cylinder 109 is sealed by second partition 400, The lower face of second cylinder 109 is sealed by second bearing 500, forms second cylinder chamber 109A.

First partition 300 and second partition 400 form an entirety by the way that spring catch (being not drawn into figure) is fixed, first Fluted 301,401 formation partition board inner cavities are opened up on the end face that partition board 300 and second partition 400 are combined respectively, i.e. partition board disappears Sound chamber 110.The noise elimination when setting of partition board anechoic room 110 can be conducive to be vented at partition board, can advantageously reduce closed The noise of compressor 100.

And first partition 300 and second partition 400 are symmetrical about the end face (recline horizontal plane) being combined, such as The first partition 300 and second partition of this setting are simple in structure, and are arranged rationally, so as to advantageously reduce closed compression The complexity of machine 100.

First partition 300, second partition 400, the second cylinder 109, second bearing 500 are fixed on the first gas by screw 115 The lower end of cylinder 106.The pump housing 116 of such setting is compact-sized and reliable, so as to be conducive to improve hermetic compressor 100 Structural reliability, and can be conducive to reduce hermetic compressor 100 volume.

Bent axle 103 sequentially passes through the first cylinder chamber 106A and second cylinder chamber 109A, and by first bearing 200 and second bearing 500 are supported.The upper eccentric part 103A of bent axle 103 is located at 106A in the first cylinder chamber, and the lower eccentric part 103B of bent axle 103 is located at 109A in second cylinder chamber.The periphery of upper eccentric part 103A is nested with the first roller 105, and the periphery of lower eccentric part 103B is nested with Two rollers 113, the first roller 105 and the second roller 113 are tangent with the internal diameter of the first cylinder 106 and the second cylinder 109 respectively, and It can be rotated in the first cylinder chamber 106A and second cylinder chamber 109A with bent axle 103.

The first slide plate 108 and the second slide plate are respectively arranged in the radial slot of the first cylinder 106 and the second cylinder 109 112, under the action of the first spring 107, second spring 111, the first slide plate 108, the second slide plate 112 front end be adjacent to respectively The periphery of first roller 105 and the second roller 113.As a result, appearance is respectively formed in the first cylinder chamber 106A and second cylinder chamber 109A Continually changing two cavitys of product, under the rotation of bent axle 103, the volume of each cavity is first changed from small to big, at this time refrigerant quilt Cavity is sucked, after bent axle 103 turns over certain angle, from large to small, the refrigerant in cavity is compressed the volume of cavity at this time, The final inside for being discharged to closing shell 101, to complete a compression cycle.

With reference to Fig. 2, the flange portion of first bearing 200 offer by compressed high pressure gas in the first cylinder chamber 106A to The first bearing gas vent 204 and first bearing groove 201 being discharged in first anechoic room 104A are received in first bearing groove 201 The first bearing exhaust valve plate 205 that first bearing gas vent 204 is opened and closed can be controlled by receiving, and to first bearing exhaust valve plate The first bearing lift stopper 202 that 205 maximum opening " H1 " is limited.First bearing exhaust valve plate 205 and first axle Lift stopper 202 is held to be fixed in groove 201 by first bearing rivet 203.

With reference to Fig. 3, the lower face of first partition 300 offer by compressed high pressure gas in the first cylinder chamber 106A to The first partition gas vent 304 and first partition groove 301 being discharged in partition board anechoic room 110 are stored in first partition groove 301 The first partition exhaust valve plate 305 of the opening and closing of first partition gas vent 304 can be controlled by having, and to first partition exhaust valve plate The first partition lift stopper 302 that 305 maximum opening " H2 " is limited.First partition exhaust valve plate 305 and first every Plate lift stopper 302 is fixed on by first partition rivet 303 in first partition groove 301.

With reference to Fig. 4, the lower face of second partition 400 offer by compressed high pressure gas in second cylinder chamber 109A to The second partition gas vent 404 and second partition groove 401 being discharged in partition board anechoic room 110 are stored in second partition groove 401 The second partition exhaust valve plate 405 of the opening and closing of second partition gas vent 404 can be controlled by having, and to second partition exhaust valve plate The second partition lift stopper 402 that 405 maximum opening " H3 " is limited.Second partition exhaust valve plate 405 and second every Plate lift stopper 402 is fixed on by second partition rivet 403 in second partition groove 401.

With reference to Fig. 5, the flange portion of second bearing 500 offer by compressed high pressure gas in second cylinder chamber 109A to The second bearing gas vent 504 and second bearing groove 501 being discharged in second anechoic room are accommodated in second bearing groove 501 The second bearing exhaust valve plate 505 of the opening and closing of second bearing gas vent 504 can be controlled, and to second bearing exhaust valve plate 505 The second bearing lift stopper 502 that is limited of maximum opening " H4 ".Second bearing exhaust valve plate 505 and second bearing liter Journey limiter 502 is fixed on by second bearing rivet 503 in second bearing groove 501.

The diameter D2 of first partition gas vent 304 is formed as the diameter D1 equal to first bearing gas vent 204, second partition The diameter D3 in exhaust aperture 404 is formed as the diameter D4 equal to second bearing gas vent 504, first bearing gas vent 204 it is straight Diameter D1 is formed as the diameter D4, i.e. D1=D2=D3=D4 equal to second bearing gas vent 504.

According to the pump housing 116 of the hermetic compressor 100 of the utility model embodiment, with larger gas vent section Product can be conducive to high pressure gas and be quickly discharged from compression cylinder chamber, reduce exhaust resistance, improve the efficiency of compressor in this way. While the diameter by the way that the diameter of partition board gas vent to be set equal to bearing gas vent, it is possible to reduce the specification number of exhaust valve plate Amount, can be conducive to be standardized exhaust valve plate, can reduce the production cost of product.

The maximum opening H2 for the first partition exhaust valve plate 305 that first partition gas vent 304 is opened and closed is formed as small In the maximum opening H1 for the first bearing exhaust valve plate 205 that first bearing gas vent 204 is opened and closed；Second partition is vented The maximum opening H3 for the second partition exhaust valve plate 405 that hole 404 is opened and closed be formed as be equal to first partition gas vent 304 into The maximum opening H2 of the first partition exhaust valve plate 305 of row opening and closing；The second bearing that second bearing gas vent 504 is opened and closed The maximum opening H4 of exhaust valve plate 505 is formed as being equal to the first bearing air bleeding valve that first bearing gas vent 204 is opened and closed The maximum opening H1 of piece 205, i.e. H2=H3<H1=H4.

Based on this, the maximum opening of two partition board exhaust valve plates can be identical, can advantageously reduce closed pressure in this way The exhaust resistance of contracting machine 100 can improve the efficiency of compressor, and two exhaust valve plates can select same valve block, with And corresponding lift stopper can also be same to selecting, so as to reduce the cost of compressor.

The maximum opening of two bearing exhaust valve plates can be identical, can advantageously reduce hermetic compressor 100 in this way Exhaust resistance, the efficiency of compressor can be improved, and two exhaust valve plates can select same valve block and corresponding Lift stopper can also be same to selecting, so as to reduce the cost of compressor.

The maximum opening of partition board exhaust valve plate is less than the maximum opening of corresponding bearing exhaust valve plate, can make so every The exhaust velocity of a cylinder is fast, and good exhaust effect, exhaust resistance is also smaller, and can reduce crushing.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.

While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that： Can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and objective, modification, replaced And modification, the scope of the utility model are limited by claim and its equivalent.

Claims (10)

1. a kind of pump housing of hermetic compressor, which is characterized in that including：First bearing, the first cylinder, first partition, second Partition board, the second cylinder and second bearing, the first bearing and the first partition are enclosed in the both ends of first cylinder To form the first cylinder chamber, the second bearing and the second partition are enclosed in the both ends of second cylinder to form the second cylinder Room, the first partition and the second partition recline fixation, and the first bearing is formed with first bearing gas vent, and described One partition board is formed with first partition gas vent, and the second bearing is formed with second bearing gas vent, and the second partition is formed Have second partition gas vent, wherein the diameter D1 of the first bearing gas vent, the first partition gas vent diameter D2, The diameter D4 of the diameter D3 of the second partition gas vent and the second bearing gas vent meets following relationship：D1=D2= D3=D4.

2. the pump housing of hermetic compressor according to claim 1, which is characterized in that the first bearing gas vent and institute It states first partition gas vent and is corresponding with exhaust valve plate, to the maximum for the exhaust valve plate that the first bearing gas vent is opened and closed Aperture H1 and the maximum opening H2 for the exhaust valve plate that the first partition gas vent is opened and closed meet following relationship：H2 ＜ H1。

3. the pump housing of hermetic compressor according to claim 2, which is characterized in that the second partition gas vent is also right Should have exhaust valve plate, the maximum opening H2 for the exhaust valve plate that the first partition gas vent is opened and closed with to described second every The maximum opening H3 for the exhaust valve plate that plate gas vent is opened and closed meets following relationship：H2=H3.

4. the pump housing of hermetic compressor according to claim 2 or 3, which is characterized in that the second bearing gas vent Be corresponding with exhaust valve plate, the maximum opening H4 for the exhaust valve plate that the second bearing gas vent is opened and closed with to described first The maximum opening H1 for the exhaust valve plate that bearing gas vent is opened and closed meets following relationship：H1=H4.

5. the pump housing of hermetic compressor according to claim 1, which is characterized in that the first partition and described second Partition board is respectively formed fluted, two grooves correspondence composition partition board anechoic rooms.

6. the pump housing of hermetic compressor according to claim 1, which is characterized in that the first bearing is provided with first Silencer, the second bearing are provided with the second silencer.

7. the pump housing of hermetic compressor according to claim 1, which is characterized in that the first partition and described second Partition board constitutes an entirety by spring catch.

8. the pump housing of hermetic compressor according to claim 1, which is characterized in that the first partition, described second Partition board, second cylinder and the second bearing are fixed on the lower section of first cylinder by fastener.

9. the pump housing of hermetic compressor according to claim 1, which is characterized in that the first partition and described second Partition board is symmetrical about the horizontal plane that reclines between the two.

10. a kind of hermetic compressor, which is characterized in that including the hermetic compressor described in any one of claim 1-9 The pump housing.