CN108661908A

CN108661908A - Compressor and refrigeration system with it

Info

Publication number: CN108661908A
Application number: CN201810631001.4A
Authority: CN
Inventors: 冯万国; 宋鹏杰; 周杏标
Original assignee: Anhui Meizhi Precision Manufacturing Co Ltd
Current assignee: Anhui Meizhi Precision Manufacturing Co Ltd
Priority date: 2018-06-19
Filing date: 2018-06-19
Publication date: 2018-10-16

Abstract

The invention discloses a kind of compressor and with its refrigeration system, the compressor includes：Shell；The pump housing, the pump housing are located in shell, the pump housing includes cylinder assembly, be located at the cylinder assembly axial both ends base bearing and supplementary bearing；Thermal insulation barriers, the thermal insulation barriers are located on the pump housing, and closed insulated space is limited between the thermal insulation barriers and the outer surface of the pump housing.Compressor according to the present invention, by the way that thermal insulation barriers are arranged on the pump housing, and make to limit closed insulated space between thermal insulation barriers and the outer surface of the pump housing, the volumetric efficiency and refrigeration performance of compressor such as rotary compressor can be improved relatively, reduce the power consumption of compressor such as rotary compressor.

Description

Compressor and refrigeration system with it

Technical field

The present invention relates to compressor fields, more particularly, to a kind of compressor and with its refrigeration system.

Background technology

In the related technology, rotary compressor is a kind of hermetically sealed refrigerating compressor unit, as shown in figure 21, non-condensing Shell structure make rotary compressor at runtime, the high temperature and pressure refrigerant for compressing completion is discharged into shell 1 ' first It is interior, then refrigeration system is entered by the exhaust pipe 11 ' at the top of shell 1 '.

However, since high temperature refrigerant, motor 8 ' and the pump housing 2 ' in shell 1 ' are all high temperature heat sources, inevitably It exchanges heat with the low-temp low-pressure refrigerant that will enter the pump housing 2 ', so as to cause the invalid overheat of low temperature suction, this can not only be dropped The volumetric efficiency of low rotary compressor also results in the performance degradation of rotary compressor.Moreover, high temperature is cold in shell 1 ' The heat transfer of the low-temp low-pressure refrigerant of matchmaker and refrigerator oil to being sucked in the pump housing 2 ' is very notable, causes to suck the refrigerant degree of superheat very Height seriously reduces the refrigeration performance of rotary compressor, while power consumption can also increase accordingly.

Invention content

The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes a kind of pressure Contracting machine, the volumetric efficiency and refrigeration performance of the compressor are high.

The present invention also proposes a kind of refrigeration system with above-mentioned compressor.

The compressor of embodiment according to a first aspect of the present invention, including：Shell；The pump housing, the pump housing are located in shell, institute State the pump housing include cylinder assembly, be located at the cylinder assembly axial both ends base bearing and supplementary bearing；Thermal insulation barriers, it is described heat-insulated Part is located on the pump housing, and closed insulated space is limited between the thermal insulation barriers and the outer surface of the pump housing.

Compressor according to the ... of the embodiment of the present invention by the way that thermal insulation barriers are arranged on the pump housing, and makes the outer of thermal insulation barriers and the pump housing Closed insulated space is limited between surface, it can the opposite volumetric efficiency and system for improving compressor such as rotary compressor Cold performance reduces the power consumption of compressor such as rotary compressor.

According to some embodiments of the present invention, the thermal insulation barriers cover at least one in the base bearing and the supplementary bearing The outer surface of a outer surface and the cylinder assembly, and in the base bearing, the supplementary bearing and the cylinder assembly extremely It is few that closed insulated space is limited between one and the thermal insulation barriers.

According to some embodiments of the present invention, the inner surface of the thermal insulation barriers is equipped with the direction for being directed away from the pump housing Recessed groove, wherein at least one outer surface in the base bearing, the supplementary bearing and the cylinder assembly with The insulated space is limited between the groove.

According to some embodiments of the present invention, the thickness of the thermal insulation barriers is H₀, the depth of the groove is H, wherein institute State H₀, H meet：H₀×1/10≤H≤H₀×9/10。

According to some embodiments of the present invention, it is S that the formation of the thermal insulation barriers, which has the area of the part of the groove,₀, institute It is S to state groove to have the projected area on the part of the groove in the formation of the thermal insulation barriers, wherein the S₀, S it is full Foot：S≥S₀×1/10。

According to some embodiments of the present invention, the base bearing includes the hub portion and flange portion being sequentially connected in an axial direction, The flange portion is located at the side of the neighbouring cylinder assembly of the hub portion, and the outer peripheral edge of the flange portion has towards remote The flange flange that direction from cylinder assembly extends, the thermal insulation barriers are located in the flange portion.

According to some embodiments of the present invention, flange groove is limited between the flange portion and the flange flange, wherein The thermal insulation barriers are located in the flange groove, and the groove is formed in the inner surface towards the cylinder assembly of the thermal insulation barriers On, and the groove is around the hub portion.

According to some embodiments of the present invention, circumferentially spaced multiple through-holes are formed in the flange portion, it is described Thermal insulation barriers are equipped with multiple buckle structures across multiple through-holes, and the free end of each buckle structure has bayonet part, institute It states and is equipped with elastic component between bayonet part and the flange portion.

According to some embodiments of the present invention, each buckle structure includes spaced two buckles, two institutes The free end for stating buckle is respectively equipped with the bayonet part for facing away from mutual direction extension.

According to some embodiments of the present invention, the elastic component is spring or elastic bellows.

According to some embodiments of the present invention, the thermal insulation barriers include：First isolation section, first isolation section are covered in On the side end face far from the cylinder assembly of the base bearing；Second isolation section, one end of second isolation section and institute It states the first isolation section to be connected, described one end of second isolation section is arranged adjacent to the flange flange, and described second heat-insulated The other end of section passes through the flange portion and is extended to along the side wall of the cylinder assembly at least neighbouring with the cylinder assembly One end end face of the supplementary bearing is concordant, and the groove is formed on the inner surface of second isolation section.

According to some embodiments of the present invention, first isolation section is equipped with the direction for being directed away from the cylinder assembly The heat-insulated side for extending and being overlapped on the flange flange, the minimum range between the heat-insulated side and the inner wall of the shell is extremely It is 0.5mm less.

According to some embodiments of the present invention, the base bearing is equipped with delivery valve seat, is formed on the thermal insulation barriers useful In the escape port for avoiding the delivery valve seat.

According to some embodiments of the present invention, tablet muffler is equipped between the base bearing and the thermal insulation barriers, it is described The boss for the direction protrusion for being directed away from the delivery valve seat is equipped at the position of the correspondence delivery valve seat of tablet muffler, The intercommunicating pore being connected to the enclosure interior is formed on the boss.

According to some embodiments of the present invention, the thermal insulation barriers are located on the supplementary bearing, and the thermal insulation barriers include：First Insulation part, first insulation part are covered on the side end face far from the cylinder assembly of the supplementary bearing；Second is heat-insulated Portion, one end of second insulation part are connected with the outer peripheral edge of first insulation part, and the other end of second insulation part One end end face towards the cylinder assembly of the base bearing is extended to along the side wall of the supplementary bearing and the cylinder assembly, The groove is formed at least one of first insulation part and second insulation part.

According to some embodiments of the present invention, when the groove is formed in first insulation part, the groove type At the central axis on the side end face towards the cylinder assembly of first insulation part and around the pump housing；With/ Or when the groove is formed in second insulation part, the groove is multiple, and multiple grooves are along the pump housing Axially spaced-apart is arranged, and each groove is the annular groove being formed in second insulation part.

According to some embodiments of the present invention, in the inner peripheral surface of second insulation part and the peripheral surface of the supplementary bearing One of them is equipped with concave portion, is set on another in the inner peripheral surface of second insulation part and the peripheral surface of the supplementary bearing There is protrusion of the cooperation in the female portion.

According to some embodiments of the present invention, the cross-sectional area at the correspondence supplementary bearing of second insulation part is less than Cross-sectional area at the correspondence cylinder assembly of second insulation part.

According to some embodiments of the present invention, axial direction everywhere phase of the cross-sectional area of second insulation part along the pump housing Deng.

According to some embodiments of the present invention, the thermal insulation barriers include the first thermal insulation barriers and the second thermal insulation barriers, described first Thermal insulation barriers are located on the base bearing, and second thermal insulation barriers are located on the supplementary bearing, first thermal insulation barriers and described Two thermal insulation barriers are overlapped in the outer surface of the cylinder assembly.

According to some embodiments of the present invention, first thermal insulation barriers, which are equipped with, is provided at circumferentially spaced and towards the countershaft Multiple first pins that the direction held extends each limit drainback passage in first pin, each first pin Outer surface there is the oil return opening that is connected to the drainback passage, the parts of second thermal insulation barriers is coated on multiple described the The peripheral side of one pin is formed on second thermal insulation barriers and is connected to the oil return opening and along the thickness of second thermal insulation barriers Multiple oil return holes of direction perforation.

According to some embodiments of the present invention, the interior table of the outer surface and second thermal insulation barriers of each first pin Limiting slot is formed on one of in face, the inner surface of the outer surface and second thermal insulation barriers of each first pin In one of be equipped with the limit rib that coordinates with the limiting slot.

According to some embodiments of the present invention, when the thermal insulation barriers are located in the base bearing and the supplementary bearing at least One it is upper when, the thermal insulation barriers be connected by screw in the base bearing and the supplementary bearing it is described it is at least one on, institute It states and is formed with relief hole on thermal insulation barriers, washer, one end far from the cylinder assembly of the washer are equipped in the relief hole End face protrudes from the separate cylinder assembly of one end end face at the correspondence relief hole of the thermal insulation barriers or the washer One end end face relief hole corresponding with the thermal insulation barriers at one end end face it is concordant, the screw pass through the washer, It is threadedly coupled with the cylinder assembly after the corresponding base bearing or the supplementary bearing.

According to some embodiments of the present invention, the washer is integrally formed with the thermal insulation barriers.

According to some embodiments of the present invention, the thermal coefficient of the thermal insulation barriers is α, wherein the α meets：α≤ 0.8W/(m·K)。

The refrigeration system of embodiment according to a second aspect of the present invention includes according to the above-mentioned first aspect embodiment of the present invention Compressor.

The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description Obviously, or practice through the invention is recognized.

Description of the drawings

The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment Obviously and it is readily appreciated that, wherein：

Fig. 1 a are the stereograms according to the pump housing of the compressor of first embodiment of the invention；

Fig. 1 b are the sectional views of the pump housing shown in Fig. 1 a；

Fig. 2 a are the stereograms of thermal insulation barriers shown in Fig. 1 b；

Fig. 2 b are the upward views of thermal insulation barriers shown in Fig. 2 a；

Fig. 3 a are the stereograms of thermal insulation barriers shown in Fig. 1 b；

Fig. 3 b are the vertical views of thermal insulation barriers shown in Fig. 3 a；

Fig. 4 is the sectional view according to the pump housing of second embodiment of the invention；

Fig. 5 is the sectional view according to the pump housing of third embodiment of the invention；

Fig. 6 a are the stereograms of thermal insulation barriers shown in Fig. 5；

Fig. 6 b are the side views of thermal insulation barriers shown in Fig. 6 a；

Fig. 7 is the sectional view according to the pump housing of four embodiment of the invention；

Fig. 8 a are the stereograms of the first thermal insulation barriers shown in fig. 7；

Fig. 8 b are the vertical views of the first thermal insulation barriers shown in Fig. 8 a；

Fig. 9 a are the stereograms of the second thermal insulation barriers shown in fig. 7；

Fig. 9 b are the vertical views of the second thermal insulation barriers shown in Fig. 9 a；

The stereogram of Figure 10 a tablet mufflers shown in fig. 7；

Figure 10 b are the vertical views of tablet muffler shown in figure 10 A；

Figure 10 c are the upward views of tablet muffler shown in figure 10 A；

Figure 11 is the sectional view according to the pump housing of fifth embodiment of the invention；

Figure 12 a are the stereograms of washer shown in Figure 11；

Figure 12 b are the sectional views of washer shown in Figure 12 a；

Figure 13 is the sectional view according to the pump housing of sixth embodiment of the invention；

Figure 14 a are the stereograms of thermal insulation barriers shown in Figure 13；

Figure 14 b are the vertical views of base bearing shown in Figure 13；

Figure 14 c are the stereograms of spring shown in Figure 13；

Figure 15 is the sectional view according to the pump housing of seventh embodiment of the invention；

Figure 16 a are the stereograms of supplementary bearing shown in Figure 15；

Figure 16 b are the side views of supplementary bearing shown in Figure 16 a；

Figure 17 a are the stereograms of thermal insulation barriers shown in Figure 15；

Figure 17 b are the sectional views of thermal insulation barriers shown in Figure 17 a；

Figure 18 is the heat insulation of the pump housing of compressor according to the ... of the embodiment of the present invention with S/S₀Change curve；

Figure 19 is the compressor according to the ... of the embodiment of the present invention using thermal insulation barriers and traditional compression for not using thermal insulation barriers The relative variation schematic diagram of the main performance index of machine；

Figure 20 is the schematic diagram of refrigeration system according to the ... of the embodiment of the present invention；

Figure 21 is the schematic diagram of traditional compressor.

Reference numeral：

100：Compressor；

1：Shell；2：The pump housing；

21：Cylinder；22：Base bearing；

221：Hub portion；222：Flange portion；2221：Through-hole；

223：Flange flange；224：Flange groove；

23：Supplementary bearing；231：Concave portion；

24：Piston；25：Slide plate；26：Bent axle；

3：Thermal insulation barriers；31：Groove；32：Buckle；321：Bayonet part；

331：First isolation section；332：Second isolation section；34：Escape port；

351：First insulation part；361：Second insulation part；3611：Protrusion；

37：First thermal insulation barriers；371：Pin；

3711：Drainback passage；3712：Oil return opening；3713：Limit rib；

38：Second thermal insulation barriers；381：Oil return hole；382：Limiting slot；

39：Washer；

4：Elastic component；

5：Tablet muffler；51：Boss；511：Intercommunicating pore；

6：Muffler；7：Screw；8：Motor；

200：Refrigeration system；

100’：Compressor；

1’：Shell；11’：Exhaust pipe；

2’：The pump housing；8’：Motor.

Specific implementation mode

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.

In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, limit There is the feature of " first ", " second " to can explicitly or implicitly include one or more this feature surely.The present invention's In description, 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 " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.

Compressor 100 according to the ... of the embodiment of the present invention is described below with reference to Fig. 1 a- Figure 20.Compressor 100 can be rotation Formula compressor.In the description below the application, illustrated so that compressor 100 is rotary compressor as an example.Certainly, ability Field technique personnel are appreciated that compressor 100 can also be other types of compressor 100, and are not limited to rotary compressor.

As shown in Fig. 1 a- Figure 20, such as rotary compressor of compressor 100 of embodiment according to a first aspect of the present invention, Including shell 1, the pump housing 2 and thermal insulation barriers 3.

Specifically, there is the bottom in shell 1 oil sump, the lubricating oil in oil sump can be used for each fortune to the pump housing 2 Dynamic component is lubricated.The pump housing 2 and motor 8 are each provided in shell 1, and motor 8 can be located at the top of the pump housing 2.

The pump housing 2 includes 21 component of cylinder, is located at the axial both ends (for example, top and bottom in Fig. 1 a) of 21 component of cylinder Base bearing 22 and supplementary bearing 23.21 component of cylinder can only include a cylinder 21, and base bearing 22 can be located at the cylinder 21 Top, supplementary bearing 23 is located at the bottom of the cylinder 21, and compressor 100 is single cylinder compressor 100 at this time.When 21 component of cylinder When including multiple cylinders 21, separated by partition board (not shown) between two neighboring cylinder 21, it is multiple that base bearing 22 is located at this The top of cylinder 21, supplementary bearing 23 are located at the bottom of this multiple cylinder 21, and compressor 100 is multicylinder compressor 100 at this time.

B, Fig. 4-Fig. 5, Fig. 7, Figure 11, Figure 13 and Figure 15 referring to Fig.1, the pump housing 2 further include bent axle 26, the upper end of bent axle 26 It is connected with motor 8, the lower end of bent axle 26 can have axially through base bearing 22,21 component of cylinder and supplementary bearing 23, bent axle 26 There are eccentric part, piston 24 to be set in outside eccentric part, and piston 24 is located in cylinder 21.When compressor 100 is run, 8 band of motor Dynamic crankshaft 26 rotates, and inner wall of the bent axle 26 with piston 24 along cylinder 21 is rolled with to entering the low-temp low-pressure in cylinder 21 Refrigerant is compressed, and is obtained the refrigerant of high temperature and pressure and is discharged in shell 1.

Thermal insulation barriers 3 are located on the pump housing 2, and closed insulated space is limited between thermal insulation barriers 3 and the outer surface of the pump housing 2. Here it is possible to include following seven kinds of situations：The first, thermal insulation barriers 3 are only defined on the base bearing 22 of the pump housing 2, at this time thermal insulation barriers 3 and master Closed insulated space is limited between the outer surface of bearing 22；The second, thermal insulation barriers 3 are only defined on the supplementary bearing 23 of the pump housing 2, Closed insulated space is limited between thermal insulation barriers 3 and the outer surface of supplementary bearing 23 at this time；Third, thermal insulation barriers 3 are only defined the pump housing 2 21 component of cylinder on, limit closed insulated space between the outer surface of 21 component of thermal insulation barriers 3 and cylinder at this time；4th, Thermal insulation barriers 3 are located on base bearing 22 and supplementary bearing 23 simultaneously, at this time the appearance of at least one of base bearing 22 and supplementary bearing 23 Closed insulated space is limited between face and thermal insulation barriers 3；5th, thermal insulation barriers 3 are located at 21 component of base bearing 22 and cylinder simultaneously On, it is limited between the outer surface and thermal insulation barriers 3 of at least one of 21 component of base bearing 22 and cylinder at this time closed heat-insulated Space；6th, thermal insulation barriers 3 are located on 21 component of supplementary bearing 23 and cylinder simultaneously, at this time in 21 component of supplementary bearing 23 and cylinder Closed insulated space is limited between at least one outer surface and thermal insulation barriers 3；7th, thermal insulation barriers 3 are located at base bearing simultaneously 22, on 21 component of cylinder and supplementary bearing 23, the appearance of at least one of base bearing 22,21 component of cylinder and supplementary bearing 23 at this time Closed insulated space is limited between face and thermal insulation barriers 3.Here, it should be noted that direction "outside" can be understood as separate The direction at 21 center of cylinder, opposite direction are defined as "inner", the i.e. direction towards 21 center of cylinder.

Inventor is had found by simulation calculation, for the compressor 100 using thermal insulation barriers 3, high temperature refrigerant pair in shell 1 High temperature refrigerant is in the pump housing 2 in the shell 1 for the compressor 100 that the heat that low temperature refrigerant heats in the pump housing 2 is relatively free of thermal insulation barriers 3 The heat of low temperature refrigerant heating reduces apparent.

As a result, by the way that thermal insulation barriers 3 are arranged on the pump housing 2, can improve traditional since the pump housing 2 is directly exposed to shell 1 It is interior and make high temperature refrigerant, lubricating oil, motor 8 and the pump housing 2 itself in shell 1 to entering the cold of the low-temp low-pressure in the pump housing 2 The invalid overheat of low temperature suction caused by heat exchange occurs for matchmaker, and in other words, thermal insulation barriers 3 can be cold by the high temperature in shell 1 well Matchmaker, lubricating oil and the pump housing 2 separate, moreover, by making to limit closed heat-insulated sky between thermal insulation barriers 3 and the outer surface of the pump housing 2 Between, the cavity volume of closed similar " air layer " can be formed, the heat conduction of the thermal resistance formed by thermal insulation barriers 3 and " air layer " is reduced Coefficient avoids the heating of high temperature refrigerant, refrigerator oil to the pump housing 2 in shell 1, simultaneously because the pump housing 2 by thermal insulation barriers 3 with High temperature refrigerant, lubricating oil, motor 8 in shell 1 separate, and relatively reduce the Wen Sheng of the pump housing 2, avoid the pump housing 2 to gas indirectly The heat transfer of low temperature refrigerant, improves refrigerating capacity in cylinder 21, reduces into power, for example rotary to improve compressor 100 The COP (coefficient of performance, the coefficient of performance) of compressor.

As shown in figure 19, inventor passes through actual test, in such as rotary compression of compressor 100 using thermal insulation barriers 3 In machine, for conventional without such as rotary compressor of compressor 100 for using thermal insulation barriers 3, no matter in SEER operating modes Frequency-changeable compressor 100 or GX operating modes constant speed compressor 100, cold level promoted it is apparent, meanwhile, power consumption It reduces, so that the COP of such as rotary compressor of compressor 100 promotes fairly obvious, efficiency higher, cost performance is more preferable. Meanwhile 3 cost of thermal insulation barriers is not high, for the opposite income obtained, long-term gain is far longer than the increase of cost, can be very Such as rotary compressor COP of compressor 100 is promoted well, increases competitiveness.Here, it should be noted that " SEER operating modes " " GX operating modes " has been well known to those skilled in the art, and details are not described herein.

Such as rotary compressor of compressor 100 according to the ... of the embodiment of the present invention, by the way that thermal insulation barriers 3 are arranged on the pump housing 2, And make to limit closed insulated space between thermal insulation barriers 3 and the outer surface of the pump housing 2, opposite it can improve compressor 100 for example The volumetric efficiency and refrigeration performance of rotary compressor reduce the power consumption of such as rotary compressor of compressor 100.

According to some embodiments of the present invention, as shown in Fig. 1 a- Figure 12 b and Figure 15-Figure 17 b, thermal insulation barriers 3 cover base bearing 22 and at least one of supplementary bearing 23 outer surface and 21 component of cylinder outer surface, and base bearing 22, supplementary bearing 23 are gentle At least one of 21 component of cylinder limits closed insulated space between thermal insulation barriers 3.Including following three kinds of situations here,： The first, thermal insulation barriers 3 cover the outer surface of base bearing 22 and 21 component of cylinder, and in 21 component of base bearing 22 and cylinder at least Closed insulated space is limited between one and thermal insulation barriers 3；The second, thermal insulation barriers 3 cover supplementary bearing 23 and 21 component of cylinder Outer surface, and at least one of 21 component of supplementary bearing 23 and cylinder limits closed insulated space between thermal insulation barriers 3；The Three, thermal insulation barriers 3 cover the outer surface of base bearing 22,21 component of supplementary bearing 23 and cylinder, and base bearing 22, supplementary bearing 23 are gentle At least one of 21 component of cylinder limits closed insulated space between thermal insulation barriers 3.

As a result, since low temperature refrigerant is located in cylinder 21, thermal insulation barriers 3 are made to cover base bearing 22 and supplementary bearing by setting The outer surface of at least one of 23 outer surface and 21 component of cylinder, and in 21 component of base bearing 22, supplementary bearing 23 and cylinder At least one of closed insulated space is limited between thermal insulation barriers 3, can further well will be where low temperature refrigerant 21 side of cylinder separated with high temperature refrigerant, lubricating oil and the motor 8 outside the pump housing 2, further avoid the high temperature outside the pump housing 2 The heating of refrigerant, lubricating oil and motor 8 to the low temperature refrigerant in cylinder 21, and further avoid the pump housing 2 to cylinder 21 indirectly The heat transfer of interior low temperature refrigerant, so as to ensure the volumetric efficiency of such as rotary compressor of compressor 100 well, into And ensure that the performance of such as rotary compressor of compressor 100, and reduce the work(of such as rotary compressor of compressor 100 Consumption.

Optionally, b, Fig. 3 a- Fig. 6 b, the inner surface of thermal insulation barriers 3 are recessed equipped with the direction for being directed away from the pump housing 2 referring to Fig.1 Between the outer surface and groove 31 of at least one of 21 component of the groove 31 entered, wherein base bearing 22, supplementary bearing 23 and cylinder Limit insulated space.As a result, by the way that groove 31 is arranged on the inner surface of thermal insulation barriers 3 and makes groove 31 and base bearing 22, pair The outer surface of at least one of 21 component of bearing 23 and cylinder coordinates to limit closed insulated space, simplifies heat-insulated sky Between processing, moreover, by the way that groove 31 to be arranged on thermal insulation barriers 3, while ensureing that heat insulation is good, to the pump housing 2 Structure is without influence.

According to some embodiments of the present invention, the thickness of thermal insulation barriers 3 is H₀, the depth of groove 31 is H, wherein H₀, H it is full Foot：H₀×1/10≤H≤H₀×9/10.The depth H of the groove 31 formed on thermal insulation barriers 3 and the thickness H of thermal insulation barriers 3₀It compares, such as The depth H of fruit groove 31 is too shallow, not as good as the thickness H of thermal insulation barriers 3₀1/10 when, then can not form closed insulated space, can not Play the inhibiting effect to low temperature refrigerant in the pump housing 2；If the depth H of groove 31 is too deep, for example, more than the thickness of thermal insulation barriers 3 H₀9/10 when, then material is easy to punch in processing so that high temperature refrigerant can directly heat 2 surface of the pump housing, at all can not Its heat-blocking action is played, resource is not only wasted, but also increases the parts count of assembly, influences efficiency of assembling.Therefore, thermal insulation barriers 3 The depth H of the groove 31 of upper formation must in a certain range, i.e. H₀, H meet H₀×1/10≤H≤H₀× 9/10, so as to The outer surface of the pump housing 2 forms closed insulated space, gives full play to the inhibiting effect to low temperature refrigerant in the pump housing 2, is convenient for simultaneously The smooth processing of thermal insulation barriers 3.

According to some embodiments of the present invention, the area of the part for forming fluted 31 of thermal insulation barriers 3 is S₀, groove 31 Projected area on the part for forming fluted 31 of thermal insulation barriers 3 is S, wherein S₀, S meet：S≥S₀×1/10.For example, In the example of Fig. 1 b- Fig. 2 b, groove 31 is formed on substantially plate-like thermal insulation barriers 3, S be groove 31 this it is plate-like every Projected area on warmware 3, S₀It is the plate-like thermal insulation barriers 3 in the plane where the central axis perpendicular to the thermal insulation barriers 3 On projected area.For example, Fig. 1 b, Fig. 3 a- Fig. 3 b example in, the generally tubular construction of thermal insulation barriers 3, thermal insulation barriers 3 include Bottom wall and the side wall for being connected to the outer peripheral edge of bottom wall and upwardly extending, groove 31 are formed on the bottom wall in the thermal insulation barriers 3, this When S be projected area of the groove 31 on the bottom wall of the thermal insulation barriers 3, S₀For the thermal insulation barriers 3 bottom wall perpendicular to the thermal insulation barriers 3 Central axis where plane on projected area.For example, in the example of Fig. 4-Fig. 6 b, groove 31 is formed in thermal insulation barriers 3 Roughly annular side wall on, and the quantity of groove 31 be it is multiple, at this time S be groove 31 the thermal insulation barriers 3 above-mentioned side wall On projected area, S₀For center of the above-mentioned side wall on the thickness direction of the above-mentioned side wall of the thermal insulation barriers 3 of the thermal insulation barriers 3 Projected area in plane.

As shown in figure 18, with 31 area accounting S/S of groove₀Increase, the closing that thermal insulation barriers 3 and 2 surface of the pump housing are formed The accounting of insulated space is also bigger, forms the cavity volume of similar " air layer ", to which its thermal coefficient is smaller, to compressor The heat insulation of 100 such as rotary compressors is better, low temperature refrigerant when being run to such as rotary compressor of compressor 100 Overheat inhibition it is stronger, final effect makes the COP performance boosts of such as rotary compressor of compressor 100 apparent.

Optionally, the thermal coefficient of thermal insulation barriers 3 is α, wherein α meets：α≤0.8W/(m·K).As a result, by using low Thermal insulation barriers 3 made of thermal coefficient material can further avoid high temperature refrigerant in shell 1 and lubricating oil in the pump housing 2 The heating of low temperature refrigerant.

Referring to Fig. 1 a- Figure 17 b detailed descriptions according to for example rotary pressure of compressor 100 of various embodiments of the present invention Contracting machine.

Embodiment one

In the present embodiment, as shown in Fig. 1 a- Fig. 3 b, the pump housing 2 of such as rotary compressor of compressor 100 includes from upper Base bearing 22, cylinder 21 and the supplementary bearing 23 being sequentially connected under, limit between base bearing 22, cylinder 21 and supplementary bearing 23 For the working chamber of compression refrigerant, piston 24 is rollably located in working chamber along the inner wall of working chamber, is formed on cylinder 21 The sliding vane groove radially extended, sliding vane groove is interior to be equipped with moveable slide plate 25, and the inner end of slide plate 25 is suitable for the periphery wall with piston 24 Only support so that working chamber is separated into suction muffler and compression chamber.

Set on the pump housing 2 there are two thermal insulation barriers 3, one of thermal insulation barriers 3 are located on the upper surface of base bearing 22, another every Warmware 3 is located on the lower surface of supplementary bearing 23 and the entire peripheral surface of basic covering cylinder 21.Moreover, each thermal insulation barriers 3 and pump Closed insulated space is all had between the outer surface of body 2.As a result, by the two thermal insulation barriers 3, substantially by the entire of the pump housing 2 Outer surface covers so that the pump housing 2 is kept apart essentially by the two thermal insulation barriers 3 with the heat inside shell 1, is reduced heat-insulated Heating amount of the heat to the low temperature refrigerant sucked in the pump housing 2 outside part 3, increases heat transfer resistance, similar to the heat-insulated of " air layer " For space is with respect to the pump housing 2 and thermal insulation barriers 3, thermal coefficient differs several or even more than ten of order of magnitude, to successfully reduce Heat transfer coefficient, improves the Performance And Reliability of such as rotary compressor of compressor 100.

For example, referring to Fig. 1 b, base bearing 22 includes the hub portion 221 being sequentially connected in an axial direction and flange portion 222, flange portion 222 are located at the side (for example, downside in Fig. 1 b) of 21 component of neighbouring cylinder of hub portion 221, the outer peripheral edge of flange portion 222 With the flange flange 223 that the direction (for example, upwardly direction in Fig. 1 b) for being directed away from 21 component of cylinder extends, thermal insulation barriers 3 It is located in the flange portion 222 of base bearing 22.In conjunction with shown in Fig. 2 a and Fig. 2 b, limited between flange portion 222 and flange flange 223 Go out flange groove 224, wherein thermal insulation barriers 3 are located in flange groove 224, groove 31 be formed in thermal insulation barriers 3 towards 21 component of cylinder On inner surface, and groove 31 is around hub portion 221.

Specifically, as shown in Fig. 1 a- Fig. 2 b, thermal insulation barriers 3 are set in the hub portion 221 of base bearing 22 and are covered in main shaft It holds on 22 upper surface of flange portion 222, and the outer peripheral edge of thermal insulation barriers 3 extends out at flange flange 223, thermal insulation barriers 3 The groove 31 of bottom-open is formed on lower surface, groove 31 is looped around the peripheral side of the hub portion 221 of base bearing 22 and is non- Closed insulated space is limited between the upper surface of the flange portion 222 of complete annular, groove 31 and base bearing 22.As a result, such as This setting, can be well by the low temperature cold in the heat of the high temperature refrigerant on 2 outer top of the pump housing and motor 8 and 2 working chamber of the pump housing Matchmaker separates.

A- Fig. 2 b referring to Fig.1, base bearing 22 are equipped with delivery valve seat, are formed on thermal insulation barriers 3 for avoiding delivery valve seat Escape port 34.The shape of escape port 34 can be adapted with the shape of delivery valve seat.In this way, when base bearing 22 is equipped with noise reduction When device 6, it is not different in the case of the effect of muffler 6 and no placement thermal insulation barriers 3, i.e., does not cause noise problem, meanwhile, from The refrigerant discharge process of compression chamber discharge is very unobstructed.

Further, as shown in Fig. 1 a- Fig. 2 b, the lower surface for the thermal insulation barriers 3 being arranged on base bearing 22 is equipped between circumferential direction Every multiple pins 371 of setting, multiple pins 371 are formed with and multiple pins on the outer peripheral edge of thermal insulation barriers 3, base bearing 22 Multiple jacks of 371 cooperations, the lower end surface of each pin 371 are no more than the lower face of base bearing 22.

For example, referring to Fig. 1 b and combine Fig. 3 a and Fig. 3 b, the thermal insulation barriers 3 being arranged on supplementary bearing 23 generally tubular knot Structure, the thermal insulation barriers 3 include：First insulation part 351 and the second insulation part 352, the first insulation part 351 are covered in the remote of supplementary bearing 23 On a side end face (for example, lower face in Fig. 1 b) from 21 component of cylinder, one end of the second insulation part 352 is (for example, Fig. 1 b In lower end) be connected with the outer peripheral edge of the first insulation part 351, and the other end of the second insulation part 352 is (for example, upper in Fig. 1 b End) one end end face (example towards 21 component of cylinder of base bearing 22 is extended to along the side wall of 21 component of supplementary bearing 23 and cylinder Such as, the lower end in Fig. 1 b), groove 31 is formed at least one of the first insulation part 351 and the second insulation part 352.

Specifically, as shown in Fig. 1 b, Fig. 3 a and Fig. 3 b, the first insulation part 351 of the thermal insulation barriers 3 being arranged on supplementary bearing 23 It is covered on the lower face of supplementary bearing 23, the second insulation part 352 is connected to the outer peripheral edge of the second insulation part 352 and upwards covering pair The side wall of bearing 23 and cylinder 21, and the upper end of the second insulation part 352 can extend upwardly to and be connect with the lower face of base bearing 22 It touches.Groove 31 is formed on the upper surface of the first insulation part 351 and is formed around the annular of the hub portion 221 of supplementary bearing 23 Closed insulated space is limited between the lower surface of the flange portion 222 of slot, the groove 31 and supplementary bearing 23.It so sets as a result, It sets, can well separate the heat of the lubricating oil of 2 outer lower part of the pump housing with the low temperature refrigerant in 2 working chamber of the pump housing.Second every Notch in hot portion 352 can be used for avoiding the air entry etc. of cylinder 21.

As a result, by using two above-mentioned thermal insulation barriers 3, by shell 1 high temperature refrigerant and lubricating oil divide with the pump housing 2 Open, in addition, be equipped with groove 31 on thermal insulation barriers 3, can be formed it is closed it is similar " air layer " and cavity volume, reduce by thermal insulation barriers 3 and " " thermal coefficient of the thermal resistance of formation avoids high temperature refrigerant in shell 1 and lubricating oil to base bearing 22, secondary to air layer The heating of bearing 23 and cylinder 21, while avoiding base bearing 22, supplementary bearing 23 and cylinder 21 to low temperature cold in working chamber indirectly The heat transfer of matchmaker, improves refrigerating capacity, reduces into power, to improve the COP of such as rotary compressor of compressor 100.

Embodiment two

As shown in figure 4, the present embodiment is roughly the same with the structure of embodiment one, wherein identical component is using identical attached Icon note, the difference is that：The first, the extending axially downward at least along the pump housing 2 of thermal insulation barriers 3 on base bearing 22 is set One end end face of the neighbouring supplementary bearing 23 of 21 component of cylinder；The second, thermal insulation barriers 3 are not set on supplementary bearing 23.

For example, referring to Fig. 4, thermal insulation barriers 3 include：First isolation section 331 and the second isolation section 332, the first isolation section 331 It is covered on a side end face (for example, upper surface in Fig. 4) for 21 component of separate cylinder of base bearing 22, the second isolation section 332 One end (for example, upper end in Fig. 4) be connected with the first isolation section 331, above-mentioned one end adjacent flange of the second isolation section 332 Flange 223 is arranged, and the other end (for example, lower end in Fig. 4) of the second isolation section 332 passes through the flange portion 222 of base bearing 22 And at least concordant with one end end face of neighbouring supplementary bearing 23 of 21 component of cylinder, groove 31 is extended to along the side wall of 21 component of cylinder It is formed on the inner surface of the second isolation section 332.

Specifically, as shown in figure 4, the first isolation section 331 covering main shaft substantially for the thermal insulation barriers 3 being arranged on base bearing 22 The entire upper surface of 22 flange portion 222 is held, the upper end of the second isolation section 332 is connected with the first isolation section 331 and adjacent to first The outer peripheral edge of isolation section 331 arranges that the lower end of the second isolation section 332 is passed down through flange portion 222 and extends downward into more than gas The lower face of cylinder 21 is as a result, covered the upper surface of the pump housing 2 and side with realizing substantially, so as to well by the pump housing 2 The high temperature refrigerant on outer top and the heat of motor 8 are separated with the low temperature refrigerant in 2 working chamber of the pump housing.It is set in second isolation section 332 There are spaced three grooves 31 up and down, circumferential horizontal extension of each groove 31 along the second isolation section 332.Optionally, three A groove 31 can arrange along the short transverse uniform intervals of cylinder 21.

Three grooves 31 are shown in Fig. 4 for illustration purposes, but those of ordinary skill is below having read Technical solution after, be clearly understood that the program be applied in the technical solution of two or more than three groove 31, This also falls within protection scope of the present invention.

First isolation section 331 extends and is overlapped on flange flange 223 equipped with the direction for being directed away from 21 component of cylinder Heat-insulated side, the minimum range between heat-insulated side and the inner wall of shell 1 is at least 0.5mm.For example, being arranged on base bearing 22 The outer diameters of thermal insulation barriers 3 need the internal diameter than shell 1 small, the purpose for the arrangement is that in order to will not interfere with the thermal insulation barriers in assembly 3 installation fully ensures that the heat-blocking action of the thermal insulation barriers 3, but if the outer diameter of the thermal insulation barriers 3 is arranged too small, then can damage again Heat insulation is lost, heat-insulated effect cannot be given full play to.That is, making the first isolation section 331 of thermal insulation barriers 3 by setting Outer peripheral edge and the minimum range between the inner wall of shell 1 be at least 0.5mm, neither influence the installation of thermal insulation barriers 3, and can be with Give full play to the heat insulation of thermal insulation barriers 3.

As a result, by using the thermal insulation barriers 3 for including 331 and second isolation section 332 of above-mentioned first isolation section, and in thermal insulation barriers Groove 31 is provided on 3, form it is similar " air layer " and enclosed volume chamber, increase whole thermal resistance, reduce whole Thermal coefficient, the high temperature refrigerant of 2 top motor of the pump housing, 8 part reduce the heating amount of the pump housing 2, the settings of thermal insulation barriers 3 but also The disturbance in the oil sump region of 2 lower section of the pump housing is reduced, lubricating oil disturbance becomes smaller, and is reduced to the heat output of the pump housing 2, this is compressor The performance boost of 100 such as rotary compressors and long-play provide enough advantage, at the same be also convenient for every The installation of warmware 3 and the pump housing 2.

Such as rotary compressor of compressor 100 of the present embodiment and base bearing 22, cylinder 21 and the pair in embodiment one The structure of bearing 23 etc. is similar, therefore is no longer described in detail here.

Embodiment three

As shown in Fig. 5-Fig. 6 b, the present embodiment is roughly the same with the structure of embodiment one, wherein identical component uses phase Same reference numeral, the difference is that：The first, thermal insulation barriers 3 are not set on base bearing 22；The second, it is arranged on supplementary bearing 23 Thermal insulation barriers 3 bottom wall and peripheral wall on be all provided with fluted 31.

As shown in figure 5, when groove 31 is formed in the first insulation part 351 of thermal insulation barriers 3, groove 31 be formed in first every On a side end face towards 21 component of cylinder in hot portion 351 and around the central axis of the pump housing 2；And/or when groove 31 is formed in When in the second insulation part 352 of thermal insulation barriers 3, groove 31 is multiple, and multiple grooves 31 are arranged along the axially spaced-apart of the pump housing 2, each Groove 31 is the annular groove being formed in the second insulation part 352.

Specific to the present embodiment, with reference to Fig. 5-Fig. 6 b, the second insulation part 352 of the thermal insulation barriers 3 being arranged on supplementary bearing 23 Internal perisporium be equipped with upper and lower spaced two grooves 31, two grooves 31 are located at the lower part of cylinder 21, two grooves 31 Limit two closed insulated spaces respectively between the periphery wall of cylinder 21.

As a result, by the way that above-mentioned thermal insulation barriers 3 are arranged in 23 outside of supplementary bearing, while groove 31, shape are provided on thermal insulation barriers 3 At it is above-mentioned it is similar " air layer " and cavity volume, increase heat transfer resistance, reduce whole heat transfer coefficient so that oil The heating amount of cylinder 21 is greatly decreased in high temperature grease in pond, to avoid low temperature refrigerant in the pump housing 2 to be heated indirectly, It is effectively improved performance and the service life of such as rotary compressor of compressor 100.

Example IV

As shown in Fig. 7-Figure 10 c, the present embodiment is roughly the same with the structure of embodiment one, wherein identical component uses phase Same reference numeral, the difference is that：The pin 371 of thermal insulation barriers 3 on base bearing 22 is passed down through the flange of base bearing 22 Portion 222 simultaneously extends to cylinder 21, and the second insulation part 352 of supplementary bearing 23 is coated on the peripheral side of pin 371.

For ease of description, in the application content below, the thermal insulation barriers 3 that are arranged on base bearing 22 be known as first every Warmware 37, the thermal insulation barriers 3 being arranged on supplementary bearing 23 are known as the second thermal insulation barriers 38.As shown in fig. 7, the first thermal insulation barriers 37 and Two thermal insulation barriers 38 are overlapped in the outer surface of 21 component of cylinder.Thus, it is possible to further effectively prevent the high temperature outside the pump housing 2 Low temperature refrigerant in the heat working chamber of refrigerant, motor 8 and lubricating oil, to further improve compressor 100 for example The Performance And Reliability of rotary compressor.Specifically, the first thermal insulation barriers 37 and the second thermal insulation barriers 38 are so that the pump housing 2 is in one A relatively independent working space is directly separated out so that the low temperature cold in the pump housing 2 with the motor 8 of top, the oil sump of lower part Matchmaker is significantly reduced by the possibility of the high temperature refrigerant heating inside shell 1, moreover, inventor is had found by simulation calculation, the pump housing 2 The opposite scheme reduction half conventional without using thermal insulation barriers 3 of heat that interior high temperature refrigerant heats low temperature refrigerant in the pump housing 2 More than, the COP performance boosts of compressor 100 are apparent.

Fig. 8 a- Fig. 9 b are simultaneously combined with reference to Fig. 7, the first thermal insulation barriers 37, which are equipped with, to be provided at circumferentially spaced and towards supplementary bearing 23 Multiple first pins 371 for extending of direction (for example, downwardly direction in Fig. 7), limit oil return in each first pin 371 Channel 3711, the outer surface of each first pin 371 have the oil return opening 3712 being connected to drainback passage 3711, and second is heat-insulated A part for part 38 is coated on the peripheral side of multiple first pins 371, is formed on the second thermal insulation barriers 38 and connects with oil return opening 3712 Multiple oil return holes 381 that are logical and being penetrated through along the thickness direction of the second thermal insulation barriers 38.For example, referring to Fig. 7 and combine Fig. 8 a, first every The pin 371 of warmware 37 has a certain length, length extend to cylinder 21 some positions (for example, 21 bottom surface of cylinder slightly on Side), it is provided with oil return opening 3712 in its 371 position of pin, such as rotary compressor actual motion of compressor 100 can be met In oil return and lubrication need, fully ensure that such as rotary compressor reliability of operation of compressor 100.Second thermal insulation barriers 38 length covering cylinder 21 and supplementary bearing 23, as shown in fig. 7, enclosure space is formed with the first thermal insulation barriers 37 simultaneously, to wrap Enclose the pump housing 2, while being equipped with oil return hole 381 at the second thermal insulation barriers 38 position corresponding with the first thermal insulation barriers 37, with first every Warmware 37 forms the channel for oil return.

As a result, by the way that the drainback passage 3711, oil return opening 3712 and the oil return hole 381 that communicate with each other is arranged, 2 top of the pump housing Lubricating oil can pass sequentially through drainback passage 3711, oil return opening 3712 and corresponding oil return hole 381 and flow back to 1 bottom of shell from up to down The oil sump in portion, so as to meet the oil return in such as rotary compressor actual motion of compressor 100 and lubrication need well It wants, fully ensures that such as rotary compressor reliability of operation of compressor 100.

Optionally, as figures 8 a and 8 b show, the internal-and external diameter of the internal-and external diameter of pin 371 and the kidney-shaped jack on base bearing 22 Cooperation is formed, specifically needs to meet certain size requirement, if 371 internal-and external diameter of pin is more than the internal-and external diameter of corresponding jack, Then assemble difficulty；If 371 internal-and external diameter of pin is less than the internal-and external diameter of corresponding jack, difficult there are 100 oil return of compressor Problem, to which such as rotary compressor lubrication problem of compressor 100 can be caused so that such as rotary compression of compressor 100 The reliability of machine reduces.That is, pin 371 and corresponding jack need to meet certain size requirement, thermal insulation barriers 3 and pump The maximum heat insulation of enclosure space competence exertion that body 2 is formed, and then it is for example rotary farthest to improve compressor 100 The performance of compressor.

Further, on one of in the inner surface of the outer surface of each first pin 371 and the second thermal insulation barriers 38 Be formed with limiting slot 382, one of in the inner surface of the outer surface of each first pin 371 and the second thermal insulation barriers 38 on set There is the limit rib 3713 coordinated with limiting slot 382.For example, referring to Fig. 8 a- Fig. 9 b, set on the outer surface of each first pin 371 It is outwardly convex go out limit rib 3713, the inner surfaces of the second thermal insulation barriers 38 is equipped with the limiting slot with 3713 corresponding matching of limit rib 382.It, can be by the first thermal insulation barriers 37 and the second thermal insulation barriers 38 as a result, by the mutual cooperation of limit rib 3713 and limiting slot 382 Firm fixation is not easy to fall off from the pump housing 2, and the pump housing 2 is made integrally to be substantially at an enclosure space, meanwhile, assembly is simple, behaviour It is easy, prodigious trouble will not be caused to the assembly on actual production line.

As shown in Fig. 7 and Fig. 9 a- Fig. 9 b, the cross at the correspondence supplementary bearing 23 of the second insulation part 352 of the second thermal insulation barriers 38 Sectional area is less than the cross-sectional area at 21 component of correspondence cylinder of the second insulation part 352.The outer diameter of the second thermal insulation barriers 38 is not at this time It is consistent, i.e., it is larger in the outer diameter at 21 position of cylinder, it is smaller in the outer diameter at 23 position of supplementary bearing, it is such Design can reduce the use of material, to reduce use cost.Certainly, if without cost requirement, the second thermal insulation barriers 38 Second insulation part 352 is also designed to the shape of same outer diameter, at this time axis of the cross-sectional area of the second insulation part 352 along the pump housing 2 To equal everywhere, theoretically, the design heat insulation with outer diameter can be more preferable, the effect that the enclosure space that thermal insulation barriers 3 are formed plays The performance of the pump housing 2 is preferably promoted.

As shown in Fig. 7 and Figure 10 a- Figure 10 c, it is equipped with tablet muffler 56 between base bearing 22 and the first thermal insulation barriers 37, puts down The boss 51 for the direction protrusion for being directed away from delivery valve seat, boss 51 are equipped at the position of the correspondence delivery valve seat of plate muffler 56 On be formed with the intercommunicating pore 5112221 being connected to the inside of shell 1.Specifically, the first thermal insulation barriers 37 coordinate with tablet muffler 56, The boss 51 of tablet muffler 56 is upward through the through-hole 2221 of the first thermal insulation barriers 37 and extends to outside the first thermal insulation barriers 37, in this way The high temperature refrigerant of such as rotary compressor of compressor 100 is allow successfully to be discharged to the pump housing 2.As a result, by the way that boss is arranged 51, it on the one hand can prevent from generating interference with the limiter at delivery valve seat position, on the other hand can form a space, have There is local sound deadening, as shown in Figure 10 a- Figure 10 c.Moreover, the design of tablet muffler 56 is simple, effect is fairly obvious, Great role has been played to forming enclosure space using thermal insulation barriers 3.

Optionally, tablet muffler 56 may be used interference mode with the first thermal insulation barriers 37 and be coordinated, after assembling The two form closed space with the second thermal insulation barriers 38 again, surround the pump housing 2, the pump housing 2 made to work in independent space.At this time First thermal insulation barriers 37 and the second thermal insulation barriers 38 by shell 1 high temperature refrigerant and lubricating oil opened with the isolation of the pump housing 2, avoid shell The heating of high temperature refrigerant and lubricating oil to the pump housing 2 in 1, while avoiding base bearing 22, supplementary bearing 23, cylinder 21 to pump indirectly The heat transfer of low temperature refrigerant, improves refrigerating capacity in body 2, reduces into power, to improve the COP of compressor 100, moreover, The disturbance of the oil sump of 2 lower section of the pump housing is reduced, lubricating oil disturbance becomes smaller, and is reduced to the heat output of the pump housing 2, this is the property of the pump housing 2 It can be promoted and long-play provides sufficiently advantage.

In the present embodiment, tablet muffler 56 both there is the high temperature refrigerant for making the pump housing 2 compress smoothly to be discharged to the pump housing 2, together When again with noise reduction effect, have prodigious effect to the noise of such as rotary compressor of compressor 100, performance, no It can be because causing the change to such as rotary compressor of compressor 100 excessive using this scheme, to increase subsequently to compression The workload such as the redesign of rotary compressor, part processing, assembly of machine 100.

As a result, by the way that thermal insulation barriers 3 are respectively set in base bearing 22 and 23 outside of supplementary bearing, while base bearing 22 disappears with tablet Sound device 56 coordinates so that forms closed insulated space between the pump housing 2 and thermal insulation barriers 3, reduces external heat in the pump housing 2 The heating amount of the low temperature refrigerant of sucking, increases heat transfer resistance, and the insulated space of similar " air layer " is with respect to the pump housing 2 and thermal insulation barriers For 3, thermal coefficient differs several or even more than ten of order of magnitude, to successfully reduce heat transfer coefficient, improves compressor 100 Performance And Reliability.

Embodiment five

As shown in Figure 11-Figure 12 b, the present embodiment is roughly the same with the structure of embodiment one, wherein identical component uses Identical reference numeral, difference essentially consist in：The side of the separate base bearing 22 of thermal insulation barriers 3 is set there are two muffler 6, spiral shell Nail 7 passes through the two mufflers 6, the washer 39 on thermal insulation barriers 3, is threadedly coupled with cylinder 21 after base bearing 22.

Thermal insulation barriers 3 are arranged on base bearing 22, solve 2 top high temperature refrigerant of the pump housing to 2 base bearing of the pump housing, 22 surface Heating plays the role of that low temperature refrigerant is inhibited to be heated, and three can sequentially pass through thermal insulation barriers by traditional using screw 7 3 and 22 fixed mode of base bearing be fixed.However, the fixed form of above-mentioned screw 7 may cause integrity problem, i.e., Since the coefficient of thermal expansion of thermal insulation barriers 3 is far longer than the coefficient of thermal expansion of metal, in such as rotary compressor of compressor 100 After long-play, screw 7 will appear Problem of Failure, for example, screw 7 occur loosens the danger even to fall off, to shadow Ring the use of compressor 100 such as rotary compressor, it is serious or even will appear the danger for jeopardizing human life.

It is heat-insulated when thermal insulation barriers 3 are located at least one of base bearing 22 and supplementary bearing 23 above in order to avoid the above problem Part 3 by screw 7 be connected in base bearing 22 and supplementary bearing 23 it is above-mentioned it is at least one on, specifically, on thermal insulation barriers 3 can be with It is formed with relief hole, is equipped with washer 39 in relief hole, one end end face of 21 component of separate cylinder of washer 39 protrudes from thermal insulation barriers 3 Correspondence relief hole at one end end face or one end end face of 21 component of separate cylinder of washer 39 allowed with the corresponding of thermal insulation barriers 3 Position hole at one end end face it is concordant, screw 7 pass through washer 39, corresponding base bearing 22 or supplementary bearing 23 after with 21 component spiral shell of cylinder Line connects.Thus, it is possible to which the active force of screw 7 is avoided to act directly on thermal insulation barriers 3.

Specific to the present embodiment, 1- Figure 12 b referring to Fig.1 have relief hole on the first thermal insulation barriers 37, for placing washer 39, muffler 6 is arranged in the top of the first thermal insulation barriers 37, and screw 7 is by sequentially passing through muffler 6, washer 39,22 and of base bearing These above-mentioned components are fixed the mode of cylinder 21.Wherein, the height of washer 39 can be higher than the first thermal insulation barriers 37, this The purpose of sample is the problem of preventing the failure of screw 7 mentioned above, loosen or fall off, because if the height of washer 39 Less than the first thermal insulation barriers 37, then the effect of washer 39 is not played, the pretightning force of screw 7 is still present in thermal insulation barriers 3 On, in this case, whether no matter washer 39 is placed, screw 7 described above can all occur and loosen the problem of even falling off, from And the reliability of such as rotary compressor of compressor 100 can be caused to be on the hazard, irremediable loss is caused to user.

Optionally, washer 39 and the first thermal insulation barriers 37 can be used respectively as independent two components.Certainly, of the invention Without being limited thereto, washer 39 can also be integrally formed with the first thermal insulation barriers 37, for example, special process may be used in advance by washer 39 It is fixed in the relief hole of thermal insulation barriers 3, so that washer 39 and the first thermal insulation barriers 37 is become a component, when can reduce assembling in this way The quantity of component improves assembling, production efficiency.

Embodiment six

As shown in Figure 13-Figure 14 c, the present embodiment is roughly the same with the structure of embodiment one, wherein identical component uses Identical reference numeral, the difference is that：The first, thermal insulation barriers 3 are connected by the way of buckling 32 structures with base bearing 22； The second, thermal insulation barriers 3 are not set on supplementary bearing 23.

Specifically, 3- Figure 14 b referring to Fig.1 are formed in the flange portion 222 of base bearing 22 circumferentially spaced multiple logical Hole 2221, thermal insulation barriers 3 are equipped with 32 structure of multiple buckles across multiple through-holes 2221, each free end for buckling 32 structures (for example, lower end of Figure 14 a) has bayonet part 321, and elastic component 4 is equipped between bayonet part 321 and flange portion 222.Wherein, each It may include spaced two buckles 32 to buckle 32 structures, and the free end of two buckles 32, which is respectively equipped with, to be faced away from each other Direction extend above-mentioned bayonet part 321.Optionally, elastic component 4 is spring (as shown in figure 14 c) or elastic bellows.

As a result, by using the mode of buckle 32 structures and elastic component 4, elastic component 4 stops the flange portion for being against base bearing 22 Between 222 and the bayonet part 321 of 32 structures of buckle, thermal insulation barriers 3 can be clamped securely to main shaft by the elastic force of elastic component 4 It holds on 22 so that heat insulating member, which will not fall off, is able to play in the pump housing 2 its heat-insulated effect, it is suppressed that high temperature refrigerant and lubrication Heat transfer of the oil to low temperature refrigerant in the pump housing 2.Moreover, this fixed form of thermal insulation barriers 3 and base bearing 22, assembly is simple, favorably In efficiency of assembling of raising during volume production.

Base bearing 22 in the present embodiment increases the through-hole with 32 respective outer side edges of buckle compared with traditional base bearing 22 2221, the processing technology of base bearing 22 will not be produced bigger effect, meanwhile, the base bearing 22 and traditional 22 phase of base bearing Than the not big variation such as outer diameter, thickness has fully ensured that base bearing 22 in such as rotary compressor of compressor 100 The effect of performance, for reducing by the scheme of 100 heat transfer loss of compressor using thermal insulation barriers 3, this base bearing 22 had both played raising Performance acts on, and in turn avoids the possibility that thermal insulation barriers 3 can only rest on Theoretical Design.

In addition, thermal insulation barriers 3 are fixed on 22 outside of base bearing, maximum journey by way of buckling 32 structures and elastic component 4 It ensure that degree the reliability of such as rotary compressor of compressor 100；Thermal insulation barriers 3 are in 22 outside of base bearing, structural planning ten Division is managed, while also can avoid, since aligning caused by there is a problem of of thermal insulation barriers 3 is difficult, being conducive to assembly technology, specifically Ground can be after aligning when assembling the pump housing 2, then is thermally shielded the installation procedure of part 3；For the assembly technology of the pump housing 2 The assembling process of subsequent compressor 100 is also interfered in the harmful effect for not causing any redundancy without generating.

Embodiment seven

As shown in Figure 15-Figure 17 b, the present embodiment is roughly the same with the structure of embodiment one, wherein identical component uses Identical reference numeral, difference essentially consist in：The first, being snap-fit attachment to by lug boss and concave portion 231 of thermal insulation barriers 3 On supplementary bearing 23；The second, thermal insulation barriers 3 are not set on base bearing 22.

It is equipped with one of in the inner peripheral surface of the second insulation part 352 and the peripheral surface of supplementary bearing 23 of thermal insulation barriers 3 recessed Enter portion 231, another in the inner peripheral surface of the second insulation part 352 and the peripheral surface of supplementary bearing 23 of thermal insulation barriers 3 is equipped with cooperation Protrusion 3521 in concave portion 231.Specific to the present embodiment, 5- Figure 17 b, concave portion 231 are formed in supplementary bearing referring to Fig.1 23 peripheral surface simultaneously extends along the circumferential annular of supplementary bearing 23, and protrusion 3521 is located at the interior of the second insulation part 352 of thermal insulation barriers 3 On circumferential surface and be formed as the circular bar outwardly protruded.

The supplementary bearing 23 in the present embodiment increases and coordinates with protrusion 3521 compared with traditional supplementary bearing 23 as a result, Concave portion 231, the processing technology of supplementary bearing 23 will not be produced bigger effect, meanwhile, the supplementary bearing 23 and traditional countershaft It holds 23 to compare, the not big variation such as outer diameter, thickness, has fully ensured that supplementary bearing 23 in for example rotary pressure of compressor 100 The effect played in contracting machine, for reducing by the scheme of 100 heat transfer loss of compressor using thermal insulation barriers 3, this supplementary bearing 23 both played The effect of raising performance, raising cannot be conducive in volume production process compressor 100 uses the case where by turn avoiding thermal insulation barriers 3 In efficiency of assembling.

In addition, thermal insulation barriers 3 are fixed on 23 outside of supplementary bearing by way of lug boss and concave portion 231, utmostly Ground ensure that the reliability of such as rotary compressor of compressor 100；Thermal insulation barriers 3 are in 23 outside of supplementary bearing, and structural planning is very Rationally, while also it can avoid, since aligning caused by there is a problem of of thermal insulation barriers 3 is difficult, being conducive to assembly technology, specifically, , can be after aligning when assembling the pump housing 2, then it is thermally shielded the installation procedure of part 3；For the pump housing 2 assembly technology not The assembling process of subsequent compressor 100 is also interfered in the harmful effect for causing any redundancy without generating.

Implementation of the heat insulating member scheme in compressor 100 had not only reduced exhaust resistance loss, but also had reduced in shell 1 High temperature refrigerant and refrigerator oil are to the heating amount of low temperature refrigerant in 2 minimum cylinder volume of the pump housing, and the working environment of the pump housing 2 is in relatively solely Vertical space so that 2 surface of the pump housing is significantly reduced by the degree that high temperature refrigerant and refrigerator oil interfere；Simultaneously as heat-insulated Formd on component groove 31 it is similar " air layer " and heat-insulated volume, increase high temperature refrigerant and high temperature refrigerator oil to compression The heat transfer resistance of low temperature refrigerant in volume, reduces its heat transfer coefficient, effectively reduces the heating amount to low temperature refrigerant；It is comprehensive next It sees, this heat insulating member scheme has both achieved the purpose that performance boost, also extends for the service life of compressor 100 and provides guarantee, is 2 heat-insulated solution of the extraordinary pump housing, is worthy to be popularized.

It is understood that the either upper compressor 100 being vented, is arranged pin 371 on the first thermal insulation barriers 37, if Actual compressor 100 is using lower exhaust or double-exhaust；Also or it is that the pump housing 2 is fixed on by cylinder 21 in shell 1 Compressor 100, the pump housing 2 are fixed on the compressor 100 in shell 1 by rack, can equally be carried out according to practical structures corresponding Design, but design philosophy should be that the thought of thermal insulation barriers 3 based on the present invention carries out, and can equally play in enclosure space The pump housing 2 is in the effect that separate space work reduces overheat.

Such as rotary compressor of compressor 100 according to the ... of the embodiment of the present invention, by using thermal insulation barriers 3, compressor 100 Such as high temperature refrigerant in the shell 1 of rotary compressor and lubricating oil substantially subtract the heat output of the low temperature refrigerant in the pump housing 2 Few, the service life and performance help to the pump housing 2 are huge, this will be to the volumetric efficiency and property of such as rotary compressor of compressor 100 Can horizontal stripes significantly promoted.

As shown in figure 20, the refrigeration system 200 of embodiment according to a second aspect of the present invention, including according to the present invention above-mentioned the The compressor 100 of one side embodiment.Optionally, refrigeration system 200 can be applied to air conditioner.But not limited to this.

Refrigeration system 200 according to the ... of the embodiment of the present invention, by using above-mentioned compressor 100, the system of refrigeration system 200 Cold performance is obviously improved.

Other of refrigeration system 200 according to the ... of the embodiment of the present invention are constituted and are operated for those of ordinary skill in the art For be all known, be not detailed herein.

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 included at least one embodiment or example of the invention.In the present specification, to above-mentioned term Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description Point can be combined in any suitable manner in any one or more of the embodiments or examples.

Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not In the case of being detached from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this The range of invention is limited by claim and its equivalent.

Claims

1. a kind of compressor, which is characterized in that including：

Shell；

The pump housing, the pump housing are located in shell, and the pump housing includes cylinder assembly, is located at the axial both ends of the cylinder assembly Base bearing and supplementary bearing；

Thermal insulation barriers, the thermal insulation barriers are located on the pump housing, and are limited between the thermal insulation barriers and the outer surface of the pump housing Closed insulated space.

2. compressor according to claim 1, which is characterized in that the thermal insulation barriers cover the base bearing and the countershaft The outer surface of the outer surface and the cylinder assembly at least one of held, and the base bearing, the supplementary bearing and the gas Closed insulated space is limited between at least one of cylinder component and the thermal insulation barriers.

3. compressor according to claim 2, which is characterized in that the inner surface of the thermal insulation barriers is equipped with and is directed away from institute The recessed groove in the direction of the pump housing is stated, wherein described at least one in the base bearing, the supplementary bearing and the cylinder assembly The insulated space is limited between a outer surface and the groove.

4. compressor according to claim 3, which is characterized in that the thickness of the thermal insulation barriers is H₀, the depth of the groove For H, wherein the H₀, H meet：H₀×1/10≤H≤H₀×9/10。

5. compressor according to claim 3, which is characterized in that the formation of the thermal insulation barriers has the part of the groove Area is S₀, it is S that the groove has the projected area on the part of the groove in the formation of the thermal insulation barriers, wherein The S₀, S meet：S≥S₀×1/10。

6. according to the compressor described in any one of claim 3-5, which is characterized in that the base bearing includes in an axial direction successively Connected hub portion and flange portion, the flange portion are located at the side of the neighbouring cylinder assembly of the hub portion, the method The outer peripheral edge in blue portion has the flange flange that the direction for being directed away from cylinder assembly extends,

The thermal insulation barriers are located in the flange portion.

7. compressor according to claim 6, which is characterized in that limited between the flange portion and the flange flange Flange groove, wherein the thermal insulation barriers are located in the flange groove, the groove be formed in the thermal insulation barriers towards the cylinder On the inner surface of component, and the groove is around the hub portion.

8. compressor according to claim 6, which is characterized in that be formed in the flange portion circumferentially spaced more A through-hole, the thermal insulation barriers are equipped with multiple buckle structures across multiple through-holes, the free ending tool of each buckle structure There is bayonet part, elastic component is equipped between the bayonet part and the flange portion.

9. compressor according to claim 8, which is characterized in that each buckle structure includes spaced two Buckle, the free end of two buckles, which is respectively equipped with, faces away from the bayonet part that mutual direction extends.

10. compressor according to claim 8, which is characterized in that the elastic component is spring or elastic bellows.

11. compressor according to claim 6, which is characterized in that the thermal insulation barriers include：

First isolation section, first isolation section are covered on the side end face far from the cylinder assembly of the base bearing；

Second isolation section, one end of second isolation section are connected with first isolation section, second isolation section it is described One end is arranged adjacent to the flange flange, and the other end of second isolation section passes through the flange portion and along the air cylinder group The side wall of part extends at least concordant with neighbouring one end end face of the supplementary bearing of the cylinder assembly, and the groove is formed in On the inner surface of second isolation section.

12. compressor according to claim 11, which is characterized in that first isolation section is described equipped with being directed away from The heat-insulated side that the direction of cylinder assembly extends and is overlapped on the flange flange, the inner wall of the heat-insulated side and the shell it Between minimum range be at least 0.5mm.

13. compressor according to claim 6, which is characterized in that the base bearing is equipped with delivery valve seat,

The escape port for avoiding the delivery valve seat is formed on the thermal insulation barriers.

14. compressor according to claim 13, which is characterized in that be equipped between the base bearing and the thermal insulation barriers flat Plate muffler is equipped with the side for being directed away from the delivery valve seat at the position of the correspondence delivery valve seat of the tablet muffler To the boss of protrusion, the intercommunicating pore being connected to the enclosure interior is formed on the boss.

15. according to the compressor described in any one of claim 3-5, which is characterized in that the thermal insulation barriers are located at the countershaft It holds, the thermal insulation barriers include：

First insulation part, first insulation part are covered on the side end face far from the cylinder assembly of the supplementary bearing；

Second insulation part, one end of second insulation part are connected with the outer peripheral edge of first insulation part, and described second every The other end in hot portion along the side wall of the supplementary bearing and the cylinder assembly extend to the base bearing towards the air cylinder group One end end face of part, the groove are formed at least one of first insulation part and second insulation part.

16. compressor according to claim 15, which is characterized in that when the groove is formed in first insulation part When, the groove is formed on the side end face towards the cylinder assembly of first insulation part and around the pump housing Central axis；And/or

When the groove is formed in second insulation part, the groove is multiple, and multiple grooves are along the pump housing Axially spaced-apart setting, each groove is the annular groove being formed in second insulation part.

17. compressor according to claim 15, which is characterized in that the inner peripheral surface and the countershaft of second insulation part Concave portion, the peripheral surface of the inner peripheral surface and the supplementary bearing of second insulation part are equipped with one of in the peripheral surface held In another be equipped with protrusion of the cooperation in the female portion.

18. compressor according to claim 15, which is characterized in that at the correspondence supplementary bearing of second insulation part Cross-sectional area be less than second insulation part the correspondence cylinder assembly at cross-sectional area.

19. compressor according to claim 15, which is characterized in that the cross-sectional area of second insulation part is along the pump The axial direction of body is equal everywhere.

20. compressor according to claim 3, which is characterized in that the thermal insulation barriers include the first thermal insulation barriers and second every Warmware, first thermal insulation barriers are located on the base bearing, and second thermal insulation barriers are located on the supplementary bearing, described first every Warmware and second thermal insulation barriers are overlapped in the outer surface of the cylinder assembly.

21. compressor according to claim 20, which is characterized in that first thermal insulation barriers are equipped with and are provided at circumferentially spaced And multiple first pins extended towards the direction of the supplementary bearing, drainback passage each is limited in first pin, often The outer surface of a first pin has the oil return opening being connected to the drainback passage,

A part for second thermal insulation barriers is coated on the peripheral side of multiple first pins, is formed on second thermal insulation barriers There are the multiple oil return holes for being connected to the oil return opening and being penetrated through along the thickness direction of second thermal insulation barriers.

22. compressor according to claim 21, which is characterized in that the outer surface of each first pin and described the It is formed with limiting slot on one of in the inner surface of two thermal insulation barriers, the outer surface and described second of each first pin The limit rib coordinated with the limiting slot is equipped with one of in the inner surface of thermal insulation barriers.

23. compressor according to claim 1, which is characterized in that when the thermal insulation barriers are located at the base bearing and described When at least one of supplementary bearing is upper, described in the thermal insulation barriers are connected by screw in the base bearing and the supplementary bearing On at least one,

It is formed with relief hole on the thermal insulation barriers, washer, the separate cylinder assembly of the washer are equipped in the relief hole One end end face protrude from one end end face at the correspondence relief hole of the thermal insulation barriers or the washer far from the gas One end end face at one end end face relief hole corresponding with the thermal insulation barriers of cylinder component is concordant, and the screw passes through described It is threadedly coupled with the cylinder assembly after washer, the corresponding base bearing or the supplementary bearing.

24. compressor according to claim 23, which is characterized in that the washer is integrally formed with the thermal insulation barriers.

25. compressor according to claim 1, which is characterized in that the thermal coefficient of the thermal insulation barriers is α, wherein described α meets：α≤0.8W/(m·K).

26. a kind of refrigeration system, which is characterized in that include the compressor according to any one of claim 1-25.