CN205478301U - Compressor and air -conditioning system - Google Patents

Abstract

The utility model discloses a compressor and air -conditioning system. The compressor including the casing that has the inner space with set up the pump body in the inner space, the bottom of inner space forms the oil bath, the pump body includes at least one -level pump package spare, pump package spare includes the cylinder, roller and gleitbretter, have the gleitbretter groove of holding gleitbretter on the cylinder and set up in the gleitbretter back of the body chamber in the radial outside in gleitbretter groove for the center of rotation of compressor, the compressor is still including the intercommunication passageway, first end and the oil bath intercommunication of intercommunication passageway with during compressor -running with the oil bath in lubricating oil keep the on -state, the second end of intercommunication passageway and the gleitbretter back of the body chamber intercommunication of the wherein one -level pump package spare of at least one -level pump package spare. The utility model discloses working medium can be reduced and wherein the gleitbretter back of the body chamber of one -level pump package spare the performance of compressor is improved to the leakage in peer compression chamber from this.

Description

Compressor and air conditioning system

Technical field

This utility model relates to compression device technical field, particularly to a kind of compressor and air-conditioning System.

Background technology

Rolling rotor-type duplex cylinder compressor has that volume is little, simple in construction, vibration is little, price is low Honest and clean advantage, is widely used in domestic or commercial air conditioning system.

In prior art, for ensureing compressor lubrication and the requirement of sealing, it will usually to compressor Housing inner space in inject suitable lubricating oil form oil with the bottom in inner space Pond also arranges corresponding pump oil structure.Partial lubrication during compressor operating, in oil sump Oil can enter the pump housing or motor internal, and therefore, the level height of oil sump can reduce.For rolling For rotor type twin cylinder compressor, its high pressure pump assembly is usually located at the top of low-lift pump assembly, Compared with the low-lift pump assembly of the bottom being positioned at the pump housing, it is positioned at the high pressure pump assembly institute on pump housing top The height at place is higher, and therefore, the slide plate of high pressure pump assembly is easier to expose because lacking lubricating oil In high-pressure working medium, high-pressure working medium is caused to leak in compression chamber at the same level from corresponding vane slot, The performance causing compressor reduces.

Utility model content

The purpose of this utility model is to provide a kind of compressor and air conditioning system, it is intended to solve pressure The slide plate of the pump assembly of contracting machine causes working medium to carry on the back chamber from corresponding slide plate because lubricating oil is under-supply The problem that the compressor performance leaking to compression chamber at the same level and cause declines.

This utility model first aspect provides a kind of compressor, including the housing with inner space With the pump housing being arranged in described inner space, oil sump, institute are formed on the bottom of described inner space State the pump housing and include that at least primary pump assembly, described pump assembly include cylinder, roller and slide plate, institute State and have on cylinder in the vane slot of accommodating described slide plate and the rotation relative to described compressor The heart is arranged at the slide plate back of the body chamber of the radial outside of described vane slot, and described compressor also includes connection Passage, the first end of described communicating passage connects with described oil sump with in the described compressor operating phase Between remain turned on the lubricating oil in described oil sump, the second end of described communicating passage and institute State the slide plate back of the body chamber connection of the wherein primary pump assembly of at least primary pump assembly.

Further, in described communicating passage is arranged at the described pump housing.

Further, described at least primary pump assembly includes first order pump assembly and is positioned at described the Second level pump assembly above primary pump assembly, described wherein primary pump assembly is the described second level Pump assembly.

Further, the described pump housing also includes being positioned at described first order pump assembly and the described second level Dividing plate between pump assembly, the first end of described communicating passage is positioned at below described dividing plate.

Further, the described pump housing also includes being positioned at described first order pump assembly and the described second level Dividing plate between pump assembly, described communicating passage includes first passage and second channel, described One passage is arranged on the cylinder of described first order pump assembly, the first end of described first passage with Described oil sump connects, and described second channel is arranged on described dividing plate, the of described second channel One end connects with the second end of described first passage, the second end of described second channel and described the The slide plate back of the body chamber connection of two stage pump assembly.

Further, described communicating passage also includes that third channel, described third channel are arranged at On the cylinder of described second level pump assembly, the first end of described third channel and described second channel The second end connection, the slide plate back of the body of the second end of described third channel and described second level pump assembly Chamber connects.

Further, under described first passage includes the cylinder of through described first order pump assembly Surface and the first through hole of upper surface, described second channel includes the lower surface of through described dividing plate With the second through hole of upper surface, described third channel includes being arranged at described second level pump assembly Groove on the lower surface of cylinder and/or in being arranged at the cylinder of described second level pump assembly first Intercommunicating pore.

Further, being arranged at least partially outside the described pump housing of described communicating passage.

Further, described communicating passage includes the housing intercommunicating pore being arranged on described housing.

Further, described connection way includes being arranged at least partially outside the described pump housing Communicating pipe.

Further, include the first pipe being positioned at described inner space described communicating pipe, described First end of the first pipe connects with described oil sump, the second end of described first pipe and described wherein The slide plate back of the body chamber connection of level pump assembly；Or, include described communicating pipe being at least partially disposed at described Second pipe of the outside of housing, the first end of described second pipe connects with described oil sump, and described the Second end of two pipes is carried on the back chamber with the slide plate of described wherein primary pump assembly and is connected.

Further, including described first pipe described communicating pipe, described communicating passage also includes setting The second intercommunicating pore on the cylinder of wherein primary pump assembly described in being placed in, described second intercommunicating pore divides Do not carry on the back chamber with the slide plate of the second end of described first pipe and described wherein primary pump assembly to connect.

Further, including described second pipe described communicating pipe, described communicating passage also includes setting Third connecting hole on the cylinder of wherein primary pump assembly described in being placed in, described third connecting hole is divided Do not carry on the back chamber with the slide plate of the second end of described second pipe and described wherein primary pump assembly to connect.

Further, described wherein primary pump assembly slide plate the back of the body intracavity be not provided with to described wherein The slide plate of primary pump assembly applies the bullet of the pressure of the roller towards described wherein primary pump assembly Spring.

Further, the equivalent diameter of the passage section of described communicating passage is more than or equal to 2mm。

Further, the slide plate back of the body chamber of described wherein primary pump assembly is only by described communicating passage Connect with described inner space.

This utility model second aspect provides a kind of air conditioning system, including compressor, wherein, institute Stating compressor is the compressor according to any one of this utility model first aspect.

The compressor provided based on this utility model and air conditioning system, compressor includes communicating passage, First end of communicating passage connects with the oil sump in the inner space of housing with at compressor operating Period remains turned on the lubricating oil in oil sump, the second end of communicating passage and at least one-level The slide plate back of the body chamber connection of the wherein primary pump assembly of pump assembly.Due to communicating passage the first end with Oil sump connects, can make the first end of communicating passage during compressor operating with the profit in oil sump Lubricating oil remains connection, and the slide plate of the second end of communicating passage and wherein primary pump assembly is carried on the back Chamber connects, therefore, if owing to the slide plate of this grade of pump assembly causes this grade of pump because lacking lubricating oil Sealing property between the slide plate of assembly and this grade of vane slot declines, and causes the cunning of this grade of pump assembly Sheet the back of the body chamber in working medium to the compression chamber internal leakage of this grade of pump assembly, then the slide plate of this grade of pump assembly The pressure step-down in back of the body chamber, the lubricating oil in oil sump will enter this grade of pump assembly from this communicating passage Slide plate back of the body chamber meet the seal request of slide plate of this grade of pump assembly, such that it is able to reduce working medium To the leakage of the compression chamber of this grade of pump assembly, improve the performance of compressor.

By detailed description to exemplary embodiment of the present utility model referring to the drawings, this The further feature of utility model and advantage thereof will be made apparent from.

Accompanying drawing explanation

Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes this A part for application, schematic description and description of the present utility model is used for explaining this practicality Novel, it is not intended that improper restriction of the present utility model.In the accompanying drawings:

Fig. 1 is the sectional structure schematic diagram of the compressor of this utility model first embodiment.

Fig. 2 is the decomposition texture signal of the pump housing of the compressor of this utility model first embodiment Figure.

Fig. 3 is the three-dimensional knot of the second level cylinder of the compressor of this utility model first embodiment Structure schematic diagram.

Fig. 4 is the sectional structure in a direction of the compressor of this utility model the second embodiment Schematic diagram.

Fig. 5 is the section view knot in another direction of the compressor of this utility model the second embodiment Structure schematic diagram.

Fig. 6 is the stereochemical structure signal of the pump housing of the compressor of this utility model the second embodiment Figure.

Fig. 7 be the second level cylinder of the compressor of this utility model the second embodiment with office The perspective view of portion's section view.

Fig. 8 is the sectional structure schematic diagram of the compressor of this utility model the 3rd embodiment.

Fig. 9 is the sectional structure signal of the pump housing of the compressor of this utility model the 3rd embodiment Figure.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, in this utility model embodiment Technical scheme be clearly and completely described, it is clear that described embodiment be only this The a part of embodiment of utility model rather than whole embodiments.Below at least one example Property embodiment description only actually be illustrative, never as to this utility model and Application or any restriction used.Based on the embodiment in this utility model, the common skill in this area The every other embodiment that art personnel are obtained under not making creative work premise, all belongs to Scope in this utility model protection.

Unless specifically stated otherwise, the parts illustrated the most in these embodiments and the phase of step Layout, numerical expression and numerical value are not intended to scope of the present utility model.Simultaneously, it should bright In vain, for the ease of describing, the size of the various piece shown in accompanying drawing is not according to reality Proportionate relationship draw.For technology known to person of ordinary skill in the relevant, method and Equipment may be not discussed in detail, but in the appropriate case, described technology, method and apparatus should When being considered to authorize a part for description.Shown here with in all examples discussed, appoint What occurrence should be construed as merely exemplary rather than as limiting.Therefore, example Other example of property embodiment can have different values.It should also be noted that similar label and word Female expression similar terms in following accompanying drawing, therefore, is determined in the most a certain Xiang Yi accompanying drawing Justice, then need not be further discussed it in accompanying drawing subsequently.

For the ease of describing, space relative terms here can be used, as " ... on ", " in ... top ", " at ... upper surface ", " above " etc., be used for describing such as institute in the drawings The device shown or feature and other devices or the spatial relation of feature.It is to be understood that It is that space relative terms is intended to comprise making in addition to the orientation that device is described in the drawings With or operation in different azimuth.Such as, if the device in accompanying drawing is squeezed, then it is described as Will after the device of " above other devices or structure " or " on other devices or structure " It is positioned as " below other devices or structure " or " under other devices or structure ".Thus, Exemplary term " ... top " can include " ... top " and " ... lower section " two Plant orientation.This device can also other different modes location (90-degree rotation or be in its other party Position), and space used herein above is described relatively make respective explanations.

As shown in Figures 1 to 9, the compressor of each embodiment of this utility model includes having inside The housing in space and the pump housing being arranged in inner space.Oil sump is formed on the bottom of inner space. The pump housing includes at least primary pump assembly.Pump assembly includes cylinder, roller and slide plate, and cylinder has There is the vane slot of accommodating slide plate and be arranged at the footpath of vane slot relative to the center of rotation of compressor Slide plate back of the body chamber laterally.Compressor also includes communicating passage.First end of communicating passage and oil Pond connects to remain turned on the lubricating oil in oil sump during compressor operating, and connection is logical Second end in road is carried on the back chamber with the slide plate of the wherein primary pump assembly of at least primary pump assembly and is connected.

Owing to the first end of communicating passage connects with oil sump, the first end of communicating passage can be made to exist Remain with the lubricating oil in oil sump during compressor operating and connect, and the second of communicating passage Hold the slide plate with wherein primary pump assembly to carry on the back chamber to connect, therefore, if owing to this grade of pump assembly Slide plate lacks lubricating oil and causes between the slide plate of this grade of pump assembly and the vane slot of this grade of pump assembly Sealing property decline, cause this grade of pump assembly slide plate the back of the body chamber in working medium to this grade of pump assembly Compression chamber internal leakage, then this grade of pump assembly slide plate the back of the body chamber pressure step-down, the profit in oil sump Lubricating oil will enter the slide plate back of the body chamber of this grade of pump assembly to meet this grade of pump group from this communicating passage The seal request of the slide plate of part, such that it is able to reduce letting out of the working medium compression chamber to this grade of pump assembly Leakage, improves the performance of compressor.

Preferably, at least primary pump assembly includes first order pump assembly and is positioned at first order pump assembly The second level pump assembly of top, described wherein primary pump assembly is second level pump assembly, i.e. connects First end of circulation passage connects with the oil sump of inner space, the second end of communicating passage and the second level Slide plate back of the body chamber (the second level slide plate back of the body chamber) connection of pump assembly.

Owing to second level pump assembly is positioned at above first order pump assembly, in running relative to First order pump assembly is more easily generated petrol starvation, therefore, second level slide plate back of the body chamber and oil sump it Between communicating passage is set can have the effect preferably reducing refrigerant leakage.

Wherein, communicating passage can be arranged at pump body.This is arranged can not increase part Or in the case of less increase part, form communicating passage, communicating passage can also be reduced simultaneously Space hold.

Communicating passage a part of can also be arranged at the outside of the pump housing.A part for communicating passage sets It is placed in the outside of the pump housing, communicating passage can be formed in the case of change less to pump body structure, The design making communicating passage is the most flexible.

When a communicating passage part is arranged at pump housing outside, connection way preferably includes and is arranged at Communicating pipe outside the pump housing.Communicating tube structure is simple, and layout is the most more convenient.

Communicating passage can also include the housing intercommunicating pore being arranged on housing.In order to arrange housing Intercommunicating pore, in the case of thickness of shell deficiency, it may be considered that to arranging intercommunicating pore in housing Position local thickening processes.Housing intercommunicating pore is set and can not increase part or less increase by zero Form communicating passage in the case of part, the space hold of communicating passage can also be reduced, separately simultaneously Outward, housing intercommunicating pore is set and also can relatively reduce the change to the pump housing.

Communicating passage can include communicating pipe and housing intercommunicating pore simultaneously.

In being preferably carried out mode, the slide plate back of the body chamber of aforesaid wherein primary pump assembly is only passed through Communicating passage connects with the inner space of housing.This is provided with primary pump assembly the most wherein Slide plate back of the body chamber occurs when the leakage of compression chamber at the same level, and lubricating oil timely enters this slide plate back of the body chamber, To this slide plate back of the body chamber make-up oil.Each specifically to this utility model below in conjunction with Fig. 1 to Fig. 9 Embodiment is described.

First embodiment

Fig. 1 to Fig. 3 shows the structure of the compressor of this utility model first embodiment.Wherein, Fig. 1 is the sectional structure schematic diagram of the compressor of this utility model first embodiment；Fig. 2 is this The decomposition texture schematic diagram of the pump housing of the compressor of utility model first embodiment；Fig. 3 is this reality Perspective view with the second level cylinder of the compressor of novel first embodiment.

As shown in Figure 1 to Figure 3, in first embodiment, compressor 100 include housing 110, The pump housing 120, driving motor 130 and communicating passage 140.Housing 110 has inner space. Oil sump 150 is formed bottom inner space.The pump housing 120 and driving motor 130 are positioned at housing 110 Inner space in.

The pump housing 120 include bent axle 121, first order pump assembly 122, second level pump assembly 123, Dividing plate 124, lower flange 125 and upper flange 126.Second level pump assembly 123 is positioned at the first order The top of pump assembly 122.Dividing plate 124 is positioned at first order pump assembly 122 and second level pump assembly Between 123.In the present embodiment, first order pump assembly 122 is low-lift pump assembly, second level pump Assembly 123 is high pressure pump assembly.

First order pump assembly 122 includes first order cylinder 1221, first order roller 1222 and One-level slide plate 1223.First order cylinder 1221 has the first of accommodating first order slide plate 1223 Level vane slot and to be arranged at the footpath of first order vane slot relative to the center of rotation of compressor outside The first order slide plate back of the body chamber 1224 of side.First order slide plate 1223 is tight with first order roller 1222 Patch.First order cylinder 1221, first order roller 1222 and first order slide plate 1223 form One stage of compression chamber.

Wherein, first order slide plate back of the body chamber 1224 by first order cylinder 1221, to be positioned at the first order sliding Sheet is carried on the back the first order slide plate 1223 of chamber 1224 radially inner side, is positioned at first order slide plate back of the body chamber 1224 Top portion with first order cylinder 1221 laminating dividing plate 124, be positioned at the first order slide plate back of the body chamber The lower flange 125 with first order cylinder 1221 laminating of 1224 bottoms surrounds formation.

The first order slide plate back of the body is provided with spring 1225 in chamber 1224, and spring 1225 is to the first order Slide plate 1223 applies to make it towards the power of first order roller 1222, thus ensures first order slide plate 1223 are adjacent to first order roller 1222.

Second level pump assembly 123 includes second level cylinder 1231, second level roller 1232 and Two grades of slide plates 1233.Second level cylinder 1231 has the second of accommodating second level slide plate 1233 Level vane slot 1235 and be arranged at second level vane slot 1235 relative to the center of rotation of compressor The second level slide plate back of the body chamber 1234 of radial outside.Second level slide plate 1233 and second level roller 1232 are close to.Second level cylinder 1231, second level roller 1232 and second level slide plate 1233 Form second level compression chamber.

Wherein, second level slide plate back of the body chamber 1234 by second level cylinder 1231, to be positioned at the second level sliding Sheet is carried on the back the second level slide plate 1233 of the radially inner side in chamber 1234, is positioned at slide plate back of the body chamber, the second level 1234 tops with second level cylinder 1231 laminating upper flange 126 and be positioned at second level slide plate The dividing plate 124 with second level cylinder 1231 laminating of back of the body bottom, chamber 1234 surrounds formation.

In the present embodiment preferably, except connecting and because of second level slide plate with communicating passage 140 Outside the issuable leakage in gap between 1233 and second level vane slot 1235, the second level is sliding Sheet back of the body chamber 1234 is airtight.I.e. second level slide plate back of the body chamber 1234 is only by communicating passage 140 Connect with the inner space of housing 110, to occur to second in second level slide plate back of the body chamber 1234 During the leakage of level compression chamber, lubricating oil timely enters second level slide plate back of the body chamber 1234.

When the compressor is operating, the pressure in second level slide plate back of the body chamber 1234 compresses higher than the second level The pressure in chamber, second level slide plate 1233 is fitted with second level roller 1232.Once the second level is sliding Gas in sheet back of the body chamber 1234 by second level slide plate 1233 and second level vane slot 1235 it Between fit clearance leak into second level compression chamber, the pressure drop in second level slide plate back of the body chamber 1234 Low, lubricating oil will enter slide plate back of the body chamber 1234, the second level by communicating passage 140.

In the present embodiment, the slide plate back of the body in the second level is not provided with second level slide plate 1233 in chamber 1234 Apply to make it towards the spring of the power of second level roller 1232.But carried on the back by second level slide plate Pressure differential between chamber 1234 and second level compression chamber realizes second level slide plate 1233 and the second level Being close to of roller 1232.This setting makes the fairly simple convenience of assembling of the pump housing 120.

First order roller 1222 and second level roller 1232 are set in two bias of bent axle 121 In portion, bent axle 121 can rotate under the drive driving motor 130 thus drive first order roller 1222 and second level roller 1232 rotate the working medium entering in the pump housing 120 with compression.Working medium example Such as the cold media gas for refrigerating circuit.

In the present embodiment, the first end of communicating passage 140 connects with oil sump 150 with at compressor 100 run durations remain turned on the lubricating oil in oil sump 150, this communicating passage 140 The second end and second level slide plate back of the body chamber 1234 connect.

As in figure 2 it is shown, in first embodiment, communicating passage 140 is arranged in the pump housing 120. Can reduce, in communicating passage 140 is arranged at the pump housing 120, the space that communicating passage 140 takies, And can arrange on the premise of the quantity of the quantity or less increase part that do not increase part Communicating passage 140.

As in figure 2 it is shown, in first embodiment, communicating passage 140 include first passage, second Passage and third channel.First passage is arranged on first order cylinder 1221, first passage First end connects with oil sump 150.Second channel is arranged on dividing plate 124, the of second channel One end connects with the second end of first passage.Third channel is arranged on second level cylinder 1231, First end of third channel connects with the second end of second channel, the second end of third channel and Two grades of slide plate back of the body chambeies 1234 connect.

As in figure 2 it is shown, in the present embodiment specifically, first passage is the axle along the pump housing 120 The first through hole 141 that line direction extends.Second channel is the axis direction extension along the pump housing Second through hole 142.Third channel is the groove being arranged on the lower surface of second level cylinder 1231 143.This arranges the path that lubricating oil can be made from oil sump 150 to second level slide plate back of the body chamber 1234 Shorter, the most beneficially lubricating oil flows rapidly into slide plate back of the body chamber 1234, Er Qiejia, the second level Work is more convenient.

First embodiment provides way of realization when a kind of communicating passage is arranged on the pump housing, so And, the concrete shape of this utility model communicating passage to being arranged on the pump housing and structure are the most unlimited System, as long as can guarantee that when second level slide plate 1233 lacks lubricating oil by connecting energy road by oil Lubricating oil in pond introduces slide plate back of the body chamber 1234, the second level.

Such as, in the variation of first embodiment, to first passage, second channel and the 3rd The shape of passage and structure can be unrestricted, as long as the working medium in second level slide plate back of the body chamber is to the During two-stage compression endoluminal leak, it is sliding that the lubricating oil in oil sump can enter the second level by communicating passage Sheet back of the body chamber 1234 meets shape and the structure of the seal request of second level slide plate 1233.Tool Body ground, in a variation of the present embodiment, at least one of first passage and second channel Can also be the axis favouring or being partially oblique to the pump housing, third channel can also be for being arranged at The first intercommunicating pore on the cylinder of the second level.In another variation of the present embodiment, threeway Road can not be necessary, it is possible to so that the second end of second channel and second level slide plate back of the body chamber 1234 directly connect, and now, second channel can be one and be directly communicated to the second level slide plate back of the body Duct bottom chamber 1234.In another variation, communicating passage can also include arranging Fourth lane on lower flange 125, and make the first end of fourth lane connect with oil sump, make Second end of fourth lane connects with the first end of first passage.

When compressor 100 runs, second level slide plate 1233 is past in second level vane slot 1235 Multiple motion causes the pressure oscillation in slide plate back of the body chamber 1234, the second level, need when pressure is higher by The lubricating oil of slide plate intracavity is discharged rapidly, it is preferred that the passage section of communicating passage work as Amount diameter is more than or equal to 2mm.

From the above description, it can be seen that in first embodiment, compressor 100 proceeds to from halted state During running status, first order slide plate 1223 is pressed on first order roller 1222 by spring 1225, Proceed by reciprocating motion, when the pressure of the inner space of compressor 100 is enough, the second level Slide plate 1233 is also close to second level roller 1232 and is moved back and forth, along with compressor 100 Continuous service, the oil liquid level in the oil sump 150 of compressor 100 is gradually lowered, and stable at certain One liquid level.Lubricating oil between second level slide plate 1223 and second level vane slot 1235 can Can reduce accordingly causes sealing property to lower, if owing to second level slide plate 1233 lacks lubrication Oil causes the sealing property between second level slide plate 1233 and second level vane slot 1235 to decline, Cause the working medium in second level slide plate back of the body chamber 1234 to second level compression chamber internal leakage, then second The pressure step-down in level slide plate back of the body chamber 1234, the lubricating oil in oil sump 150 will be successively from formation It is sliding that first through hole the 141, second through hole 142 of communicating passage 140 and groove 143 enter the second level Sheet back of the body chamber 1234 meets the seal request of second level slide plate 1233, such that it is able to reduce working medium To the leakage of second level compression chamber, improve the performance of compressor 100.

Second embodiment

Fig. 4 to Fig. 7 shows the structure of the compressor of this utility model the second embodiment.Wherein, Fig. 4 is the sectional structure signal in a direction of the compressor of this utility model the second embodiment Figure；Fig. 5 is the sectional structure in another direction of the compressor of this utility model the second embodiment Schematic diagram；Fig. 6 is that the stereochemical structure of the pump housing of the compressor of this utility model the second embodiment is shown It is intended to；Fig. 7 be the second level cylinder of the compressor of this utility model the second embodiment with office The perspective view of portion's section view.

As shown in Figures 4 to 7, in the second embodiment, compressor 200 include housing 210, The pump housing 220, driving motor 230 and communicating passage 240.The pump housing 220 and driving motor 230 It is positioned at the inner space of housing 210.Oil sump 250 is formed bottom inner space.

The pump housing 220 include bent axle 221, first order pump assembly 222, second level pump assembly 223, Dividing plate 224, lower flange 225 and upper flange 226.Second level pump assembly 223 is positioned at the first order The top of pump assembly 222.Dividing plate 224 is positioned at first order pump assembly 222 and second level pump assembly Between 223.

First order pump assembly 222 includes first order cylinder 2221, first order roller 2222 and One-level slide plate 2223.First order cylinder 2221 has first order vane slot and the first order slide plate back of the body Chamber 2224.First order slide plate 2223 is close to first order roller 2222.First order cylinder 2221, First order roller 2222 and first order slide plate 2223 form first order compression chamber.

The first order slide plate back of the body is provided with spring 2225 in chamber 2224, and spring 2225 is to the first order Slide plate 2223 applies to make it towards the power of first order roller 2222.

Second level pump assembly 123 includes second level cylinder 2231, second level roller 2232 and Two grades of slide plates 2233.Second level cylinder 2231 has second level vane slot 2235 and the second level Slide plate back of the body chamber 2234.Second level cylinder 2231, second level roller 2232 and second level slide plate 2233 form second level compression chamber.Second level slide plate 2233 is close to second level roller 2232.

Be not provided with in second level slide plate back of the body chamber 2234 second level slide plate 2233 is applied making its towards The spring of the power of second level roller 2232.

In the present embodiment, the first end of communicating passage 240 connects with oil sump 250 with at compressor 200 run durations remain turned on the lubricating oil in oil sump 250, communicating passage 240 Second end connects with second level slide plate back of the body chamber 2234.

As shown in Figures 5 to 7, in the second embodiment, the part setting of communicating passage 240 Outside in the pump housing 220.The outside that a part for communicating passage 240 is arranged at the pump housing 220 is permissible To the pump housing 220 only make less change in the case of realize the setting of communicating passage 240.

Connection way includes the communicating pipe being arranged at outside the pump housing.As shown in Figure 5 and Figure 6, In two embodiments, include the first pipe 241 in internally positioned space, the first pipe described communicating pipe First end of 241 connects with oil sump 250, the second end of the first pipe 241 and the second level slide plate back of the body Chamber 2234 connects.

Communicating passage 240 also includes the second intercommunicating pore being arranged on second level cylinder 2231 242, the second intercommunicating pore 242 respectively with the second end of the first pipe 241 and second level slide plate back of the body chamber 2234 connections.Specifically, the second end of the first pipe 241 stretches into the of the second intercommunicating pore 242 One end, thus connect with the second intercommunicating pore 242, second end and second of the second intercommunicating pore 242 Level slide plate back of the body chamber 2234 connects.

As it is shown in fig. 7, second level cylinder 2231 includes annular solid and is arranged at annular solid and shell Segment between body 210, second level slide plate back of the body chamber 2234 and the second intercommunicating pore 242 are arranged On segment, the second intercommunicating pore 242 is positioned at side and the second level slide plate back of the body chamber of segment Between 2234.This setting is beneficial to first pipe 241 layout in inner space, can make The simple in construction of one pipe 241, as shown in Figure 5 and Figure 6, in the second embodiment, the first pipe 241 are set to L-shaped；It addition, the second intercommunicating pore 242 is easy to process；The road of communicating passage Footpath is shorter.

From the above description, it can be seen that in the second embodiment, if owing to second level slide plate 2233 Lack lubricating oil and cause the sealing between second level slide plate 2233 and second level vane slot 2235 Can decline, cause the working medium in second level slide plate back of the body chamber 2234 to second level compression chamber internal leakage, The then pressure step-down in second level slide plate back of the body chamber 2234, the lubricating oil in oil sump 250 will be successively Second level slide plate is entered from the first pipe 241 and the second intercommunicating pore 242 forming communicating passage 240 Back of the body chamber 2234 meets the seal request of second level slide plate 2233, such that it is able to reduce working medium to The leakage of second level compression chamber, improves the performance of compressor 200.

In second embodiment, other unaccounted content is referred to inside the Pass the phase of first embodiment Hold.

3rd embodiment

Fig. 8 and Fig. 9 shows the structure of the compressor of this utility model the 3rd embodiment.Wherein, Fig. 8 is the sectional structure schematic diagram of the compressor of this utility model the 3rd embodiment；Fig. 9 is this The sectional structure schematic diagram of the pump housing of the compressor of utility model the 3rd embodiment.

As shown in Figure 8 and Figure 9, in the 3rd embodiment, compressor 300 include housing 310, The pump housing 320, driving motor 330 and communicating passage 340.The pump housing 320 and driving motor 330 It is positioned at the inner space of housing 310.Oil sump 350 is formed bottom inner space.

The pump housing 320 include bent axle 321, first order pump assembly 322, second level pump assembly 323, Dividing plate 324, lower flange 325 and upper flange 326.Second level pump assembly 323 is positioned at the first order The top of pump assembly 322.Dividing plate 324 is positioned at first order pump assembly 322 and second level pump assembly Between 323.

First order pump assembly 322 includes first order cylinder 3221, first order roller 3222 and One-level slide plate 3223.First order cylinder 3221 has first order vane slot and the first order slide plate back of the body Chamber 3224.First order slide plate 3223 is close to first order roller 3222.First order cylinder 3221, First order roller 3222 and first order slide plate 3223 form first order compression chamber.

The first order slide plate back of the body is provided with spring 3225 in chamber 3224, and spring 3225 is to the first order Slide plate 3223 applies to make it towards the power of first order roller 3222.

Second level pump assembly 323 includes second level cylinder 3231, second level roller 3232 and Two grades of slide plates 3233.Second level cylinder 3231 has second level vane slot and the second level slide plate back of the body Chamber 3234.Second level slide plate 3233 is close to second level roller 3232.Second level cylinder 3231, Second level roller 3232 and second level slide plate 3233 form second level compression chamber.

In the present embodiment, the slide plate back of the body in the second level is also not provided with second level slide plate in chamber 3234 3233 apply to make it towards the spring of the power of second level roller 3232.

In the present embodiment, the first end of communicating passage 340 connects with oil sump 350 with at compressor 300 run durations remain turned on the lubricating oil in oil sump 350, communicating passage 340 Second end connects with second level slide plate back of the body chamber 3234.

As shown in Figure 8 and Figure 9, in the 3rd embodiment, the part setting of communicating passage 340 Outside in the pump housing 320.The outside that a part for communicating passage 340 is arranged at the pump housing 320 is permissible To the pump housing 320 only make less change in the case of realize the setting of communicating passage.

In 3rd embodiment, connection way also includes that part is arranged at the connection outside the pump housing 320 Pipe.As shown in Figure 8 and Figure 9, include the second pipe 341 being positioned at outside housing 310 communicating pipe, First end of the second pipe 341 connects with oil sump 350, the second end of the second pipe 341 and the second level Slide plate back of the body chamber 3234 connects.

As shown in Figure 8, communicating passage 340 also includes being arranged on second level cylinder 3231 Third connecting hole 342, third connecting hole 342 respectively with second end and second of the second pipe 341 Level slide plate back of the body chamber 3234 connects.As shown in Figure 8, the second pipe 341 is U-tube, U-tube The first end connect with oil sump 350 through housing 310, the second end of U-tube is through housing 310 and connect with third connecting hole 342 in stretching into third connecting hole 342.The most preferably, First end of U-tube be less than dividing plate 324, with guarantee compressor operationally can all the time with oil Pond connects.

As shown in Figure 8 and Figure 9, second level cylinder 3231 includes annular solid and is arranged at annular Segment between body and housing 310, second level slide plate back of the body chamber 3234 and third connecting hole 342 Being arranged on segment, third connecting hole 342 is positioned at outer peripheral face and the second level slide plate of segment Between back of the body chamber 3234.This setting is beneficial to the company of the second pipe 341 and second level slide plate back of the body chamber 3234 Logical, can make the simple shape of the second pipe 341, and third connecting hole 342 is easy to process.

From the above description, it can be seen that in the 3rd embodiment, if owing to second level slide plate 3233 Lack under the sealing property that lubricating oil causes between second level slide plate 3233 and second level vane slot Fall, cause the working medium in second level slide plate back of the body chamber 3234 to second level compression chamber internal leakage, then The pressure step-down in second level slide plate back of the body chamber 3234, the lubricating oil in oil sump 350 will successively from The second pipe 341 and the third connecting hole 342 that form communicating passage 340 enter the second level slide plate back of the body Chamber 3234 meets the seal request of second level slide plate 3233, such that it is able to reduce working medium to the The leakage in two-stage compression chamber, improves the performance of compressor.

In 3rd embodiment, other unaccounted content is referred to first embodiment and second in fact Execute the related content of example.

Although this utility model is all illustrated as a example by duplex cylinder compressor by various embodiments above, But this utility model is applicable not only to duplex cylinder compressor, it is also applied for single cylinder compressor or multi-cylinder pressure Contracting machine.It addition, although various embodiments above is all not provided with spring in second level slide plate back of the body chamber, But spring can also be set in second level slide plate back of the body chamber in other unshowned embodiment, Second level slide plate is applied to make it press to the power of second level roller by this spring.

This utility model also provides for a kind of air conditioning system, and this air conditioning system includes aforesaid compressor. This air conditioning system has all advantages that this compressor has.

From the above description, it can be seen that this utility model various embodiments above can realize following technology Effect: when lubricant level is relatively low in the oil sump of compressor, can be by oil by communicating passage Lubricating oil in pond introduces the slide plate back of the body intracavity of wherein primary pump assembly, makes the cunning of this grade of pump assembly Sheet runs under conditions of being in lubricating oil, can reduce the slide plate back of the body intracavity of this grade of level pump assembly Working medium leaks to the compression chamber of this grade of pump assembly, improves the performance of compressor.

Finally should be noted that: above example is only in order to illustrate technical side of the present utility model Case is not intended to limit；Although this utility model having been carried out specifically with reference to preferred embodiment Bright, those of ordinary skill in the field are it is understood that still can be to tool of the present utility model Body embodiment is modified or portion of techniques feature is carried out equivalent；Without deviating from this The spirit of utility model technical scheme, it all should contain the technology being claimed at this utility model In the middle of aspects.

Claims (17)

1. a compressor, including having the housing of inner space and being arranged at described internal empty The interior pump housing, oil sump is formed on the bottom of described inner space, and the described pump housing includes at least one-level Pump assembly, described pump assembly includes cylinder, roller and slide plate, and described cylinder has accommodating institute State the vane slot of slide plate and be arranged at described vane slot relative to the center of rotation of described compressor The slide plate back of the body chamber of radial outside, it is characterised in that described compressor also includes communicating passage, institute State the first end of communicating passage connect with described oil sump with during described compressor operating with described Lubricating oil in oil sump remains turned on, second end and described at least of described communicating passage The slide plate back of the body chamber connection of the wherein primary pump assembly of level pump assembly.

Compressor the most according to claim 1, it is characterised in that described communicating passage It is arranged in the described pump housing.

Compressor the most according to claim 1, it is characterised in that described at least one-level Pump assembly includes first order pump assembly and is positioned at the second level pump group above described first order pump assembly Part, described wherein primary pump assembly is described second level pump assembly.

Compressor the most according to claim 3, it is characterised in that the described pump housing also wraps Include the dividing plate between described first order pump assembly and described second level pump assembly, described connection First end of passage is positioned at below described dividing plate.

Compressor the most according to claim 3, it is characterised in that the described pump housing also wraps Include the dividing plate between described first order pump assembly and described second level pump assembly, described connection Passage includes that first passage and second channel, described first passage are arranged at described first order pump group On the cylinder of part, the first end of described first passage connects with described oil sump, described second channel It is arranged on described dividing plate, the first end of described second channel and the second end of described first passage Connection, the second end of described second channel is carried on the back chamber with the slide plate of described second level pump assembly and is connected.

Compressor the most according to claim 5, it is characterised in that described communicating passage Also include that third channel, described third channel are arranged on the cylinder of described second level pump assembly, First end of described third channel connects with the second end of described second channel, described third channel The slide plate of the second end and described second level pump assembly carry on the back chamber and connect.

Compressor the most according to claim 6, it is characterised in that described first passage The lower surface of cylinder and the first through hole of upper surface, institute including through described first order pump assembly State second channel and include the lower surface of through described dividing plate and the second through hole of upper surface, described Triple channel includes the groove being arranged on the lower surface of the cylinder of described second level pump assembly and/or sets It is placed in the first intercommunicating pore in the cylinder of described second level pump assembly.

Compressor the most according to claim 1, it is characterised in that described communicating passage Be arranged at least partially outside the described pump housing.

Compressor the most according to claim 8, it is characterised in that described communicating passage Including the housing intercommunicating pore being arranged on described housing.

Compressor the most according to claim 8, it is characterised in that described connection way Including the communicating pipe being arranged at least partially outside the described pump housing.

11. compressors according to claim 10, it is characterised in that described communicating pipe wraps Including the first pipe being positioned at described inner space, the first end of described first pipe is with described oil sump even Logical, the second end of described first pipe is carried on the back chamber with the slide plate of described wherein primary pump assembly and is connected；Or Person, includes being at least partially disposed at the second pipe of the outside of described housing described communicating pipe, and described the First end of two pipes connects with described oil sump, the second end of described second pipe and described wherein one-level The slide plate back of the body chamber connection of pump assembly.

12. compressors according to claim 11, it is characterised in that described communicating pipe wraps Include described first pipe, described communicating passage also include being arranged at described in the gas of wherein primary pump assembly The second intercommunicating pore on cylinder, described second intercommunicating pore respectively with the second end and the institute of described first pipe State the slide plate back of the body chamber connection of wherein primary pump assembly.

13. compressors according to claim 11, it is characterised in that described communicating pipe wraps Include described second pipe, described communicating passage also include being arranged at described in the gas of wherein primary pump assembly Third connecting hole on cylinder, described third connecting hole respectively with the second end and the institute of described second pipe State the slide plate back of the body chamber connection of wherein primary pump assembly.

14. according to the compressor according to any one of claim 1 to 13, it is characterised in that The slide plate back of the body intracavity of described wherein primary pump assembly is not provided with the cunning to described wherein primary pump assembly Sheet applies the spring of the pressure of the roller towards described wherein primary pump assembly.

15. according to the compressor according to any one of claim 1 to 13, it is characterised in that The equivalent diameter of the passage section of described communicating passage is more than or equal to 2mm.

16. according to the compressor according to any one of claim 1 to 13, it is characterised in that The slide plate back of the body chamber of described wherein primary pump assembly is only by described communicating passage and described inner space Connection.

17. 1 kinds of air conditioning systems, including compressor, it is characterised in that described compressor is root According to the compressor according to any one of claim 1 to 16.