CN207454266U - Rotary compressor and with its air-conditioning system - Google Patents

Abstract

The utility model discloses a kind of rotary compressor and there is its air-conditioning system, rotary compressor includes：Casing；Electric machine assembly, electric machine assembly include stator, rotor and shaft, and shaft is threaded through in rotor and is rotated with rotor；First compression assembly, the first compression assembly have the first axle body, and the first axle body is connected by the first unilateral bearing with one end of shaft；Second compression assembly, second compression assembly has the second axle body, the second axle body is connected by the second unilateral bearing with the other end of shaft, wherein, the rotation direction of rotor is variable and the rotation direction of the first unilateral bearing and the second unilateral bearing is on the contrary, so that one of them in the first compression assembly and the second compression assembly works when shaft rotates.It can be by the way that the rotation direction of electric machine assembly be controlled to realize that different compression assemblies works, to adapt to different operating modes according to the rotary compressor of the utility model embodiment.

Description

Rotary compressor and with its air-conditioning system

Technical field

The utility model is related to air-conditioning technical field, more particularly, to a kind of rotary compressor and with its sky Adjusting system.

Background technology

With the development of air-conditioning technical, market is higher and higher to the efficiency requirement of air-conditioning, it is desirable to which air-conditioning is in different operating modes It can efficiently play a role down.But for control cost, general domestic air conditioning can use a compressor, it is difficult to take into account Different operating mode or it is exactly low-temperature heating scarce capacity or is exactly that declared working condition efficiency is relatively low, for the pressure of air-conditioning system Contracting machine still has much room for improvement.

Utility model content

The utility model is intended at least solve one of technical problem in the prior art.For this purpose, the utility model carries Go out a kind of rotary compressor, the rotary compressor can select different compression assemblies to work, to better adapt to not Same operating mode.

The utility model also proposed a kind of air-conditioning system with above-mentioned rotary compressor.

According to the rotary compressor of the utility model embodiment, including：Casing；Electric machine assembly, the electric machine assembly bag Stator, rotor and shaft are included, the shaft is threaded through in the rotor and is rotated with the rotor；First compression assembly, it is described First compression assembly has the first axle body, and the first axle body is connected by the first unilateral bearing with one end of the shaft；The Two compression assemblies, second compression assembly have the second axle body, and the second axle body passes through the second unilateral bearing and described turn The other end of axis is connected, wherein, the rotation direction of the rotor is variable and first unilateral bearing and second one-way shaft The rotation direction held is on the contrary, so that one of them in first compression assembly and second compression assembly is in the shaft It works during rotation.

It can be by the way that the rotation direction of electric machine assembly be controlled to realize according to the rotary compressor of the utility model embodiment Different compression assembly work, to adapt to different operating modes.

In addition, following additional technology spy can also be had according to the rotary compressor of the utility model above-described embodiment Sign：

Some embodiments according to the present utility model, one end of the first axle body are arranged with first bearing seat, and described One unilateral bearing is located in the first bearing seat, and one end of the second axle body is arranged with second bearing seat, and described second is single It is located to bearing in the second bearing seat.

In some embodiments of the utility model, the electric machine assembly further includes：The first axle being connected with the casing It holds, the clutch shaft bearing is connected to support described turn between first unilateral bearing and the rotor and with the shaft Axis rotates；The second bearing being connected with the casing, the second bearing be located at second unilateral bearing and the rotor it Between and be connected with the shaft shaft to be supported to rotate.

Optionally, the rotary compressor is vertical compressor or horizontal compressor.

The type phase of some embodiments according to the present utility model, first compression assembly and second compression assembly It is same or different.

Further, first compression assembly and second compression assembly are respectively rotator type compression assembly, are vortexed One of them in formula compression assembly and centrifugal compressor component.

Optionally, first compression assembly is different with the discharge capacity of second compression assembly.

Further, first compression assembly or second compression assembly are using two stages of compression and equipped with tonifying Qi knot Structure.

In some specific embodiments of the utility model, first compression assembly or second compression assembly are equipped with Jet structure.

Some embodiments according to the present utility model, first compression assembly or second compression assembly have independent Pressure texture.

Optionally, the clutch shaft bearing and the second bearing are respectively wherein one in rolling bearing and sliding bearing It is a.

According to the air-conditioning system of the utility model embodiment, including the rotary compression according to the utility model embodiment Machine.

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

Description of the drawings

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

Fig. 1 is the structure diagram according to the rotary compressor of the utility model embodiment；

Fig. 2 is the structure diagram according to the first bearing seat of the rotary compressor of the utility model embodiment；

Fig. 3 is the sectional view along Fig. 2 center line A-A directions；

Fig. 4 is the sectional view along Fig. 2 center line B-B directions.

Reference numeral：

Casing 10；

Electric machine assembly 20；Stator 21；Rotor 22；Shaft 23；

First compression assembly 30；The first axle body 31；

Second compression assembly 40；The second axle body 41；

First unilateral bearing 50；

Second unilateral bearing 60；

First bearing seat 71；Clutch shaft bearing chamber 711；First installation cavity 712；Second bearing seat 72；

Clutch shaft bearing 81；Second bearing 82.

Specific embodiment

The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings.Below by The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and it is not intended that new to this practicality The limitation of type, those of ordinary skill in the art can be to these in the case where not departing from the principle and objective of the utility model Embodiment carries out a variety of change, modification, replacement and modification, and the scope of the utility model is limited by claim and its equivalent.

In the description of the utility model, it is to be understood that term " on ", " under ", " interior ", " outer ", " clockwise ", The orientation or position relationship of instructions such as " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of description The utility model and simplified description rather than instruction imply that signified device or element must be with specific orientation, Yi Te Fixed azimuth configuration and operation, therefore it is not intended that limitation to the utility model.

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

Referring to figs. 1 to shown in Fig. 4, may include according to the rotary compressor 100 of the utility model one embodiment：Casing 10th, electric machine assembly 20, the first compression assembly 30 and the second compression assembly 40.

Specifically, electric machine assembly 20 can include stator 21, rotor 22 and shaft 23, and rotor 22 can match somebody with somebody with stator 21 It closes and realizes rotation, shaft 23 can be threaded through in rotor 22, and shaft 23 can be rotated with rotor 22.First compression assembly 30 With the first axle body 31, the first axle body 31 can be connected by the first unilateral bearing 50 with one end of shaft 23.Second compression group Part 40 has the second axle body 41, and the second axle body 41 is connected by the second unilateral bearing 60 with the other end of shaft 23.

Wherein, the rotation direction of rotor 22 is variable, that is to say, that rotor 22 can rotate forward, and can also rotate backward. Further, the rotation direction of the first unilateral bearing 50 and the second unilateral bearing 60 is on the contrary, so that the first compression assembly 30 and One of them in two compression assemblies 40 works when shaft 23 rotates.Specifically, when rotor 22 rotates forward, the first axle body 31 and the second axle body 41 in one of them can rotate so that in the first compression assembly 30 and the second compression assembly 40 wherein One can work.When rotor 22 rotates backward, the other in which in the first axle body 31 and the second axle body 41 can rotate, Other in which in first compression assembly 30 and the second compression assembly 40 is worked.

For example, in a specific example of the utility model, the rotation direction of the first unilateral bearing 50 is side clockwise To the rotation direction of the second unilateral bearing 60 is counter clockwise direction, is by clockwise direction of the direction that rotor 22 rotates forward Example, when rotor 22 rotates forward, the first unilateral bearing 50 can rotate, and locking occurs for the second unilateral bearing 60, at this point, first The inner ring of unilateral bearing 50 can be with respect to outer ring rotating, and shaft 23 will not pass through the first unilateral bearing 50 and drive the first axle body 31 It rotates, the first compression assembly 30 is not run, and the inner ring of the second unilateral bearing 60 cannot be with respect to outer ring rotating, the second unilateral bearing 60th, the second axle body 41 and shaft 23 can link together synchronous rotation so that the second compression assembly 40 can be run.

Conversely, when rotor 22 rotates backward, shaft 23 can drive first axle by the transmission of the first unilateral bearing 50 Body 31 rotates, and realizes the operation of the first compression assembly 30, and at this point, the inner ring of the second unilateral bearing 60 can turn with respect to outer ring It is dynamic, it is impossible to the power of shaft 23 to be transferred to the second axle body 41 so that the second compression assembly 40 is not run.

Thus, it is possible to by the way that the rotation direction of electric machine assembly 20 is controlled to realize that different compression assemblies works, to adapt to not Same operating mode.In actual use, can be rotated according to the rotation direction for needing to change rotor 22 of operating mode to reach shaft 23 The driving to different compression assemblies is realized in the change in direction, easy to control and reliable.

Wherein, the rotation direction of rotor 22 and the structure of the first unilateral bearing 50 and the second unilateral bearing 60 how are changed It is to be appreciated that and achievable to those skilled in the art, this will not be detailed here.

In the utility model, for the type of the first compression assembly 30 and the second compression assembly 40, principle is not done in other words Specifically limited, the first compression assembly 30 and 40 type of the second compression assembly may be the same or different, can be according to design mesh Difference flexibly selected, to promote work efficiency of the compressor under different operating modes.Optionally, the first compression assembly 30 It is respectively wherein one in rotator type compression assembly, scroll compressor component and centrifugal compressor component with the second compression assembly 40 It is a.That is, the first compression assembly 30 can select rotator type compression assembly, scroll compressor component and centrifugal compressor group Any one in part, similarly, the second compression assembly 40 can also select rotator type compression assembly, scroll compressor component and Any one in centrifugal compressor component.

For example, in some specific examples of the utility model, the first compression assembly 30 and the second compression assembly 40 are same The compression assembly of type, if the two is rotator type compression assembly, scroll compressor component or centrifugal compressor component.Example again Such as, in other specific examples of the utility model, the first compression assembly 30 and the second compression assembly 40 are different types of Compression assembly, such as the first compression assembly 30 and the second compression assembly 40 are respectively rotator type compression assembly and scroll compressor group Part, for another example, the first compression assembly 30 and the second compression assembly 40 respectively rotator type compression assembly and centrifugal compressor component, then Such as, the first compression assembly 30 and the second compression assembly 40 are respectively scroll compressor component and centrifugal compressor component.

In general, centrifugal compressor component has preferable efficiency under the smaller operating mode of pressure ratio, if using centrifugation Compression assembly matching convention cooling condition can significantly improve the efficiency of air-conditioning system.But for centrifugal compressor component and Speech, it is larger to promote the difficulty of pressure ratio, suitable for application in domestic air conditioning low-temperature heating field.Under conventional operating mode, it can select Centrifugal compressed component operation.

The most significant feature of scroll compressor component is that possess higher volumetric efficiency in specified design point, if be directed to Air-conditioning heating designs, and can take larger discharge capacity, and be directed to and specially designed compared with high pressure ratio, then can also be promoted low Warm heating capacity and efficiency, but compressor is not suitable for conventional refrigerant operating mode or such design and can reduce conventional system at this time Efficiency during cold operating mode.Therefore, under the operating mode of the more demanding grade of heating capacity, scroll compressor component operation can be selected.

Optionally, the first compression assembly 30 and the second compression assembly 40 can take different discharge capacities.Further, first 30 or second compression assembly 40 of compression assembly may be employed two stages of compression and be also provided with gas supplementary structure.Optionally, first 30 or second compression assembly 40 of compression assembly is also provided with jet structure, to promote the performance of compressor.

For example, in some specific examples of the utility model, the row of the first compression assembly 30 and the second compression assembly 40 Amount is different, and huge discharge and air injection enthalpy-increasing technology can be used in the first compression assembly 30, to correspond to ultralow temperature heating condition, the second compression Component 40 can be simple small displacement Ordinary Compression.

For another example in other specific examples of the utility model, the first compression assembly 30 and the second compression assembly 40 To take different discharge capacities and operating mode, huge discharge and two stages of compression second vapor injection technology can be used in the first compression assembly 30, To correspond to ultralow temperature heating condition, the second compression assembly 40 can be simple small displacement Ordinary Compression.

Further, the pump housing on both sides can take different discharge capacities and operating mode, and huge discharge and solely can be used in one side The vertical corresponding ultralow temperature heating condition of compression, and opposite side is simple small displacement Ordinary Compression.

First compression assembly 30 or the second compression assembly 40 have independent compression structure.In order to make it easy to understand, at this to this Independent compression structure in utility model carries out simple illustration.By taking refrigeration cycle as an example, between condenser and evaporator again Increase a throttling set, and a flash vessel is installed among two throttling sets.The refrigeration to come from condenser ends Agent liquid after first throttling set is depressured, has some refrigerant and becomes gas, these gas-liquid mixtures can be into Enter in flash vessel, wherein, in order to improve refrigerating capacity and efficiency, the gas in flash vessel can be made not enter in evaporator, for this purpose, The gas (between condensing pressure and evaporating pressure) of this part intermediate pressure can be introduced an independent compressor chamber It is inside compressed, this compression is referred to as independent compression, has this air cylinder structure of the compression from flash vessel gas, is referred to as Independent compression structure.

As shown in Figure 1, some embodiments according to the present utility model, one end of the first axle body 31 can be arranged with first axle Bearing 71, the first unilateral bearing 50 can be located in first bearing seat 71.Specifically, as shown in Figures 1 to 4, first bearing seat 711 and first installation cavity 712 of clutch shaft bearing chamber can be set in 71, and the first unilateral bearing 50 can be arranged on clutch shaft bearing chamber In 711, one end of the first axle body 31 can be plugged in the first installation cavity 712.One end of the second axle body 41 can be equipped with second Bearing block 72, the second unilateral bearing 60 can be located in second bearing seat 72.Specifically, can be set in second bearing seat 72 Two bearing bores and the second installation cavity, the second unilateral bearing 60 can be arranged on second bearing intracavitary, and one end of the second axle body 41 can To be plugged in the second installation cavity.Second bearing seat 72 is similar with the structure of first bearing seat 71, and concrete structure may be referred to Fig. 2 The schematic diagram of first bearing seat 71 into Fig. 4.

Thus, it is possible to which axis body, bearing block, unilateral bearing and shaft 23 are fixed successively, fixed effect is more preferable.Also, work as Shaft 23 along a direction rotate when, the first unilateral bearing 50, first bearing seat 71, the first axle body 31 can rotate simultaneously, Second bearing seat 72 and the second axle body 41 then remain stationary as；When shaft 23 is rotated along another direction, the second unilateral bearing 60th, second bearing seat 72, the second axle body 41 can rotate simultaneously, and first bearing seat 71 and the second axle body 41 then remain stationary as, pressure The operation of contracting machine is relatively reliable.

It should be noted that when the rotary compressor 100 of the utility model embodiment does not include 71 He of first bearing seat During second bearing seat 72, the first axle body 31 can directly be connected with the first unilateral bearing 50, and the second axle body 31 can be directly with Two unilateral bearings 60 are connected, this will be understood by for a person skilled in the art.

Optionally, as shown in Figure 1, in some embodiments of the utility model, electric machine assembly 20 can also include：First Bearing 81 and second bearing 82, clutch shaft bearing 81 and second bearing 82 are connected with casing 10, and rotor 22 can pass through shaft 23 It is installed on clutch shaft bearing 81 and second bearing 82.Specifically, clutch shaft bearing 81 be located at the first unilateral bearing 50 and rotor 22 it Between, and clutch shaft bearing 81 is connected shaft 23 is supported to rotate with shaft 23.Second bearing 82 be located at the second unilateral bearing 60 with Between rotor 22, also, second bearing 82 can be connected shaft 23 is supported to rotate with shaft 23.Thus, it is possible to make shaft 23 Installation is more secured, and rotation is more steady, and can promote the overall stability of rotary compressor 100.

Further, clutch shaft bearing 81 and second bearing 82 are respectively one of them in rolling bearing and sliding bearing. That is, clutch shaft bearing 81 can be rolling bearings or plain bearings, second bearing 82 or rolling bearing or slip Bearing can flexibly set the type of two bearings, to promote the performance of rotary compressor 100 according to actual conditions.

In the embodiment of the utility model, connection, first bearing seat for the first axle body 31 and first bearing seat 71 71 and first connection of unilateral bearing 50, the first unilateral bearing 50 and connection, the second axle body 41 and the second bearing seat of shaft 23 Connection with shaft 23 of 72 connection, the connection of 72 and second unilateral bearing 60 of second bearing seat, the second unilateral bearing 60, shaft 23 do not done with the connection of clutch shaft bearing 81 and the connection of shaft 23 and second bearing 82 it is specifically limited, for example, key may be employed Connection, to improve connection effect, avoids occurring circumferentially displaced.It for another example can also be by the way of interference fit, such as using heat Set mode is interference fitted, good connecting effect.In addition, shaft 23 can also be interference fitted with rotor 22, to promote rotor 22 With the connection reliability of shaft 23.

Optionally, can be vertical compressor according to the rotary compressor 100 of the utility model embodiment, or Horizontal compressor can specifically be designed according to user demand and cost requirement.

Rotary compressor according to the utility model embodiment is included according to the air-conditioning system of the utility model embodiment 100.Since there is above-mentioned beneficial technique effect, basis according to the rotary compressor 100 of the utility model embodiment The air-conditioning system of the utility model embodiment can promote the adaptability to different operating modes.

According to the air-conditioning system of the utility model embodiment other form and operate for this field ordinary skill It is knowable for personnel, is not described in detail herein.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition Concrete meaning of the language in the utility model.

In the description of this specification, the description of reference term " embodiment ", " specific example " or " example " etc. means to tie It closes the embodiment or example particular features, structures, materials, or characteristics described is contained at least one reality of the utility model It applies in example or example.In the present specification, schematic expression of the above terms is not necessarily referring to identical embodiment or shows Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiments or example Do not interfering, reconcilable can be combined with each other in an appropriate manner.

Claims (12)

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

Casing；

Electric machine assembly, the electric machine assembly include stator, rotor and shaft, and the shaft is threaded through in the rotor and with described Rotor rotates；

First compression assembly, first compression assembly have the first axle body, the first axle body by the first unilateral bearing with One end of the shaft is connected；

Second compression assembly, second compression assembly have the second axle body, the second axle body by the second unilateral bearing with The other end of the shaft is connected, wherein, the rotation direction of the rotor is variable and first unilateral bearing and described second The rotation direction of unilateral bearing is on the contrary, so that one of them in first compression assembly and second compression assembly is in institute It states when shaft rotates and works.

2. rotary compressor according to claim 1, which is characterized in that one end of the first axle body is arranged with first Bearing block, first unilateral bearing are located in the first bearing seat, and one end of the second axle body is arranged with second bearing Seat, second unilateral bearing are located in the second bearing seat.

3. rotary compressor according to claim 1, which is characterized in that the electric machine assembly further includes：

The clutch shaft bearing being connected with the casing, the clutch shaft bearing between first unilateral bearing and the rotor and It is connected the shaft is supported to rotate with the shaft；

The second bearing being connected with the casing, the second bearing between second unilateral bearing and the rotor and It is connected the shaft is supported to rotate with the shaft.

4. rotary compressor according to claim 1, which is characterized in that the rotary compressor is vertical compressor Or horizontal compressor.

5. rotary compressor according to claim 1, which is characterized in that first compression assembly and second pressure The type of contracting component is identical or different.

6. rotary compressor according to claim 5, which is characterized in that first compression assembly and second pressure Contracting component is respectively one of them in rotator type compression assembly, scroll compressor component and centrifugal compressor component.

7. rotary compressor according to claim 1, which is characterized in that first compression assembly and second pressure The discharge capacity of contracting component is different.

8. rotary compressor according to claim 7, which is characterized in that first compression assembly or second pressure Contracting component is using two stages of compression and equipped with gas supplementary structure.

9. rotary compressor according to claim 7, which is characterized in that first compression assembly or second pressure Contracting component is equipped with jet structure.

10. rotary compressor according to claim 7, which is characterized in that first compression assembly or described second Compression assembly has independent compression structure.

11. rotary compressor according to claim 3, which is characterized in that the clutch shaft bearing and the second bearing One of them respectively in rolling bearing and sliding bearing.

12. a kind of air-conditioning system, which is characterized in that including the rotary compression according to any one of claim 1-11 Machine.