CN107218223A - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
- Publication number
- CN107218223A CN107218223A CN201710629771.0A CN201710629771A CN107218223A CN 107218223 A CN107218223 A CN 107218223A CN 201710629771 A CN201710629771 A CN 201710629771A CN 107218223 A CN107218223 A CN 107218223A
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- CN
- China
- Prior art keywords
- housing
- middle casing
- rotary compressor
- metal
- upper bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/23—Manufacture essentially without removing material by permanently joining parts together
- F04C2230/231—Manufacture essentially without removing material by permanently joining parts together by welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/50—Bearings
Abstract
The invention discloses a kind of rotary compressor, including：First housing；Second housing, the upper end of the second housing is connected with the lower end of the first housing；Middle casing, middle casing is connected between the first housing and the second housing, and the first housing, the second housing and middle casing limit accommodating chamber；And compression mechanism, compression mechanism is located in accommodating chamber, and compression mechanism includes upper bearing (metal), and upper bearing (metal) is connected with middle casing, and is integrally formed with middle casing.According to the rotary compressor of the present invention, by the way that upper bearing (metal) is integrally formed with middle casing, the axiality of compressor stator and rotor is improved, the vibrating noise of rotary compressor is reduced, the Performance And Reliability of rotary compressor is further increased.
Description
Technical field
The present invention relates to compressor field, more particularly, to a kind of rotary compressor.
Background technology
Rotary compressor is a kind of new positive displacement compressor, it with efficiency high, small volume, light weight, it is simple in construction,
The features such as operating steadily is widely applied in air-conditioning and refrigeration unit.The upper axle of existing rotary compressor main casing and the pump housing
Hold and fixed using three spot weldings, because stator is first fixed on a main housing, when three are spot welded, what is be connected with pump housing bent axle turns
Son, can generate assembling and the displacement of welding deformation, and then cause stator and rotor coaxial degree problem, influence motor performance and pressure
Contracting machine reliability, in addition, compressor pump is hung up by three spot welding, rigidity is not enough so that the vibrating noise of compressor is larger.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.Therefore, the present invention proposes a kind of rotation
Rotary compressor, the features such as rotary compressor has simple in construction, stator and rotor coaxial degree high and low noise.
Rotary compressor according to embodiments of the present invention, including：First housing；Second housing, second housing
Upper end is connected with the lower end of first housing；Middle casing, the middle casing is connected to first housing and described the
Between two housings, first housing, second housing and the middle casing limit accommodating chamber；And compression mechanism, institute
State compression mechanism to be located in the accommodating chamber, the compression mechanism includes upper bearing (metal), the upper bearing (metal) connects with the middle casing
Connect, and be integrally formed with the middle casing.
According to the rotary compressor of the present invention, by the way that upper bearing (metal) is integrally formed with middle casing, compressor is improved
The axiality of stator and rotor, reduces the vibrating noise of rotary compressor, further increases the property of rotary compressor
Energy and reliability.
According to some embodiments of the present invention, the middle casing and the first shell body by integral forming.
According to some embodiments of the present invention, the middle casing is welded to connect with first housing.
According to some embodiments of the present invention, the upper bearing (metal) is connected with the lower end of the middle casing.
According to some embodiments of the present invention, the upper bearing (metal) includes：Cylinder section, the cylinder section is described suitable for being set in
On the bent axle of compressor；And connecting portion, the connecting portion is formed as annular, the internal perisporium of the connecting portion and the cylinder section
The periphery wall connection of bottom, the periphery wall of the connecting portion is connected with the middle casing.
Further, the cylinder section is welded to connect with the connecting portion.
Preferably, the cylinder section is integrally formed with the connecting portion.
According to some embodiments of the present invention, the minimum of first housing, the middle casing and the upper bearing (metal) is thick
Spend and met for H, the H：H≥1.2mm.
According to some embodiments of the present invention, first housing, the middle casing and the upper bearing (metal) are mild steel
Part.
According to some embodiments of the present invention, the middle casing is welded with the second housing boxing.
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
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is the sectional view of rotary compressor according to embodiments of the present invention；
Fig. 2 is the sectional view of rotary compressor according to embodiments of the present invention；
Fig. 3 is the upper bearing (metal), middle casing and the first housing of rotary compressor according to an embodiment of the invention
Sectional view；
Fig. 4 is the upper bearing (metal), middle casing and first shell of rotary compressor in accordance with another embodiment of the present invention
The sectional view of body；
Fig. 5 is upper bearing (metal), middle casing and the first shell of the rotary compressor according to another embodiment of the invention
The sectional view of body；
Fig. 6 is upper bearing (metal), middle casing and the first shell of the rotary compressor according to another embodiment of the invention
The sectional view of body.
Reference：
Compressor 100,
First housing 1,
Middle casing 2,
Compression mechanism 3, upper bearing (metal) 31, cylinder section 311, connecting portion 312, bent axle 32, spill port 33, lower bearing 34, screw
Hole 35, slide plate 36, piston 37, cylinder 38,
Upper lid 4, junction box 41,
Accommodating chamber 5,
Electric machine assembly 6, stator 61, rotor 62,
Second housing 7,
Muffler 8.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " thickness ", " on ", " under ", " interior ", " outer ", " axial direction ",
The orientation or position relationship of instructions such as " circumferences " are, based on orientation shown in the drawings or position relationship, to be for only for ease of description originally
Invention and simplified description, rather than instruction or the signified device of hint or element must be with specific orientation, with specific square
Position construction and operation, therefore be not considered as limiting the invention.In addition, define " first ", the feature of " second " can be with
Express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Rotary compressor 100 according to embodiments of the present invention is described below with reference to Fig. 1-Fig. 6.
As shown in figs 1 to 6, rotary compressor 100 according to embodiments of the present invention, including the first housing 1, second shell
Body 7, middle casing 2 and compression mechanism 3.
Specifically, the upper end of the second housing 7 is connected with the lower end of the first housing 1.Middle casing 2 is connected to the first housing
1 and second between housing 7, and the first housing 1, the second housing 7 and middle casing 2 limit accommodating chamber 5.For example, as shown in figure 1,
The upper surface of middle casing 2 is connected with the lower surface of the first housing 1, and the lower end of middle casing 2 and the upper end of the second housing 7 connect
Connect, and middle casing 2 is located at the inner side of the second housing 7, the first housing 1 is indirectly connected with the second housing 7 by middle casing 2,
First housing 1, the second housing 7 and middle casing 2 limit accommodating chamber 5.
Compression mechanism 3 is located in accommodating chamber 5, and compression mechanism 3 includes upper bearing (metal) 31, and upper bearing (metal) 31 is connected with middle casing 2,
And be integrally formed with middle casing 2.For example, as shown in figure 1, compression mechanism 3 is located at the first housing 1, the second housing 7 and middle case
In the accommodating chamber 5 that body 2 is limited, upper bearing (metal) 31 and the middle casing 2 of compression mechanism 3 are integrated formed structures.By upper bearing (metal) 31 with
Middle casing 2 is integrally formed so that structure is simpler, is easily installed, and reduces rigging error, improves efficiency of assembling.
Upper bearing (metal) 31 is integrally formed with middle casing 2, and other each parts in compression mechanism 3 can be locked at upper bearing (metal) 31
On, three spot weldings of compression mechanism 3 are eliminated, the concentricity of the upper rotor part 62 of compressor 100 and stator 61 is only limited in upper bearing (metal)
The gap of 31 endoporus and bent axle 32, about in 0.02mm, substantially increases the concentricity of stator 61 and rotor 62, can solve completely
The stator 61 and the axiality problem of rotor 62 produced when certainly compression mechanism 3 is assembled with electric machine assembly 6.Meanwhile, upper bearing (metal) 31 is with
Between the integration of housing 2, improve the rigidity that compression mechanism 3 is connected with middle casing 2, change the intrinsic frequency of the inner chamber of compressor 100
Rate, reduces vibration and the noise of compressor 100.
Rotary compressor 100 according to embodiments of the present invention, by the way that upper bearing (metal) 31 is integrally formed with middle casing 2,
The stator 61 of compressor 100 and the axiality of rotor 62 are improved, the vibrating noise of rotary compressor 100 is reduced, enters one
Step improves the Performance And Reliability of rotary compressor 100.
In some embodiments of the invention, middle casing 2 is integrally formed with the first housing 1.For example, such as Fig. 1-Fig. 5 institutes
Show, middle casing 2 is integrally formed with the first housing 1, further, since upper bearing (metal) 31 is also to be integrally formed with middle casing 2,
The structure so the first housing 1, middle casing 2 and upper bearing (metal) 31 are formed in one.First housing 1, middle casing 2 and upper bearing (metal)
31, by being integrally formed, simplify the structure of rotary compressor 100, reduce rigging error, improve rotary compressor 100
Efficiency, strengthens the stability of rotary compressor 100.
According to some embodiments of the present invention, middle casing 2 is welded to connect with the first housing 1.For example, as shown in fig. 6, in
Between housing 2 can be with separately manufactured, then by being welded to connect with the first housing 1, middle casing 2 and the first housing 1 are separately manufactured
The first housings 1 and middle casing 2 can be manufactured using different thickness calibrations, be the rotary pressure worked under different working conditions
There is provided choice of technology scheme for contracting machine 100.
In some embodiments of the invention, upper bearing (metal) 31 is connected with the lower end of middle casing 2.For example, such as Fig. 1-Fig. 6 institutes
Show, upper bearing (metal) 31 is connected with the lower end of middle casing 2, junction is excessive using fillet.Certainly, the invention is not restricted to this, upper axle
Holding 31 can also be connected with the upper end or centre position of middle casing 2.
According to some embodiments of the present invention, upper bearing (metal) 31 includes cylinder section 311 and connecting portion 312, and cylinder section 311 is suitable to
It is set on the bent axle 32 of compressor 100, connecting portion 312 is formed as annular, internal perisporium and the cylinder section 311 of connecting portion 312
The periphery wall connection of bottom, the periphery wall of connecting portion 312 is connected with middle casing 2.For example, as shown in figs 1 to 6, cylinder section
311 centers are through-hole structures, and the bent axle 32 of compressor 100 can be located in through hole, realize the connection of upper bearing (metal) 31 and bent axle 32.
The center of connecting portion 312 is provided with outside through hole, the periphery wall connection of the internal perisporium of through hole and the lower end of cylinder section 311, connecting portion 312
Perisporium is connected with middle casing 2.
Further, as shown in figure 5, cylinder section 311 is welded to connect with connecting portion 312, cylinder section 311 and connecting portion 312
It is to be connected by way of welding.The current comparative maturity of technique of welding, productivity ratio are high, cost is relatively low, it is ensured that cylinder section
311 with the coupling stiffness and overall performance of connecting portion 312, while the structure and manufacturing procedure of upper bearing (metal) 31 can be simplified, save
Production cycle, reduce production cost.
Certainly, the invention is not restricted to this, as shown in Fig. 3, Fig. 4 and Fig. 6, cylinder section 311 can be with the one of connecting portion 312
Shaping, cylinder section 311 and connecting portion 312 are integrated formed structures, reduce number of parts, simplify installation step.
According to some embodiments of the present invention, the minimum thickness of the first housing 1, middle casing 2 and upper bearing (metal) 31 is H, and H is full
Foot：H≥1.2mm.As shown in Figure 1 and Figure 2, the rigidity of the housing to ensure rotary compressor 100, which is met, requires, so first
There is minimum value in the minimum thickness of housing 1, middle casing 2 and upper bearing (metal) 31, minimum value H should be met：H≥1.2mm.
In some embodiments of the invention, the first housing 1, middle casing 2 and upper bearing (metal) 31 are low-carbon steel part.Such as Fig. 1,
Shown in Fig. 2, for ensure rotary compressor 100 housing tough sexual satisfaction requirement, manufacture the first housing 1, middle casing 2 and on
The steel material of bearing 31 is low-carbon steel material.
According to some embodiments of the present invention, the boxing of 2 and second housing of middle casing 7 welding.As shown in Figure 1 and Figure 2, in
Between housing 2 be connected with the second housing 7 by way of boxing is welded.Boxing welding compared to spot welding connection have weld seam it is small, connection
Intensity is high, in addition, the contact surface of boxing connection can be with uniform stressed, suffered stress is more dispersed, enhances the stability of welding.
The rotary compressor 100 according to four specific embodiments of the invention is described below with reference to Fig. 1-Fig. 6.It is worth understanding
, it is described below simply exemplary, it is intended to for explaining the present invention, and to be not considered as limiting the invention.
Embodiment one
As shown in figures 1 and 3, rotary compressor 100 according to embodiments of the present invention, rotary compressor 100 includes
Compression mechanism 3, electric machine assembly 6 and housing.Wherein, compression mechanism 3 and electric machine assembly 6 are located in housing.
As shown in figure 1, housing includes upper lid 4, the first housing 1, the housing 7 of middle casing 2 and second, upper lid 4 is located at first
The top of housing 1, the excircle of upper lid 4 is connected with the inner periphery of the first housing 1, and middle casing 2 is located under the first housing 1
Side, the upper surface of middle casing 2 is connected with the lower surface of the first housing 1, and the second housing 7 is located at the lower section of middle casing 2, middle
The excircle of housing 2 is connected with the inner periphery of the second housing 7 by the way of boxing.
As shown in figure 1, compression mechanism 3 is located at the bottom in housing, compression mechanism 3 includes cylinder 38, bent axle 32, upper bearing (metal)
31st, lower bearing 34, piston 37 and slide plate 36.Cylinder 38 is set on bent axle 32, and upper bearing (metal) 31 and lower bearing 34 are respectively provided at gas
The axial two ends of cylinder 38, piston 37 is set on the eccentric part of bent axle 32, and slide plate 36 is located in the vane slot of cylinder 38.Upper bearing (metal)
31 include cylinder section 311 and connecting portion 312, and cylinder section 311 is set on bent axle 32, and connecting portion 312 is formed as annular, connecting portion
312 internal perisporium is connected with the periphery wall of the bottom of cylinder section 311, and the periphery wall of connecting portion 312 is connected with middle casing 2,
Wherein, cylinder section 311, connecting portion 312, the shaping of the integrated punching of 2 and first housing of middle casing 1, the lower bearing 34 of cylinder 38 pass through
Screw is fixed on the connecting portion 312 of upper bearing (metal) 31.
Electric machine assembly 6 is located at the top of compression mechanism 3, the wiring of electric machine assembly 6 and the upper lid 4 of rotary compressor 100
Case 41 is connected.Electric machine assembly 6 includes rotor 62 and stator 61, and stator 61 is connected with the first housing 1, and rotor 62 is set in bent axle 32
Go up and be rotatably arranged in stator 61.
As shown in figure 1, each part of compression mechanism 3 is locked on upper bearing (metal) 31, due to the rotor 62 of electric machine assembly 6 be with
The bent axle 32 of compression mechanism 3 is connected, therefore the rotor 62 of electric machine assembly 6 is indirectly connected with upper bearing (metal) 31.In addition, electric machine assembly 6
Rotor 62 be directly anchored on the first housing 1, due to being integrally formed for middle casing 2, the first housing 1 and upper bearing (metal) 31,
So rotor 62, stator 61 are connected with integrated formed structure, three spot weldings of substitution conventional compression mechanism 3 solve pressure
Stator and the axiality problem of rotor 62 that contracting mechanism 3 is produced when being assembled with motor, improve the rigidity of the housing of compressor 100, change
The inner chamber intrinsic frequency of variable compression machine 100, reduces the vibrating noise of compressor 100.
Wherein, upper bearing (metal) 31, the housing 1 of middle casing 2 and first can select mild steel, as shown in figure 3, upper bearing (metal) 31, in
Between the housing 1 of housing 2 and first pass through punching press or spinning process and be molded.The rigidity of housing to ensure rotary compressor 100 expires
Foot requires that, so the minimum thickness of the first housing 1, middle casing 2 and upper bearing (metal) 31 has minimum value, minimum value H should be met：H
≥1.2mm。
In addition, being provided with delivery valve seat, spill port 33, screw hole 35, endoporus helical oil groove structure on upper bearing (metal) 31, here
No longer it is described in detail.Wherein, screw hole 35 is threaded, and can be used as cylinder aligning or fixation.As shown in figure 1, upper bearing (metal) 31
Upside the part of muffler 8 is installed, muffler 8 passes through screw and realizes connection with upper bearing (metal) 31.Mode connects for screw connected mode
It is simple and reliable, being threaded into screw for screw can be relied on, and compress connected piece by its head and realize both companies
Connect, be easily installed, dismantle and repair.
As shown in figures 1 and 3, this implementation instead of using upper bearing (metal) 31, the integrative-structure of 2 and first housing of middle casing 1
Three traditional spot weldings, three traditional spot weldings can produce rigging error and welding deformation, and then cause stator in welding
61 and the axiality problem of rotor 62, coaxiality deviation will be typically controlled within 0.12mm, and rigging error and welding deformation
It is difficult to control in the range of this, so as to have impact on the performance of motor and the reliability of rotary compressor 100.And this implementation
Example, each part is integrally formed the displacement in the absence of rigging error and welding deformation, the axiality problem between rotor 62 and stator 61
It is greatly improved, the coaxiality deviation of rotor 62 and stator 61 can be controlled in 0.02mm or so, substantially increases raising fixed
While the axiality of son and rotor 62, upper bearing (metal) 31, the integrative-structure of 2 and first housing of middle casing 1 also improve compressor
The rigidity that structure 3 is connected with housing, reduces vibration and the noise of rotary compressor 100.
Embodiment two
As shown in Figure 2 and Figure 4, the present embodiment is roughly the same with the structure of embodiment one, and wherein identical part uses phase
Same reference, the first housing 1, middle casing 2 and upper bearing (metal) 31 are integrally formed, and the difference is that only the first housing 1
Become short with the whole height of middle casing 2, due to being to be integrally formed, be integrally formed part whole height and become short, be more convenient for shaping and
Processing, difficulty of processing is smaller, and product fine is higher, relatively low to the equipment requirement of processing and manufacturing.The present embodiment is ensureing stator
On the premise of the axiality of rotor 62, the difficulty of processing for being integrally formed part is reduced, is easy to process and utilizes.
As shown in Fig. 2 it is constant for the whole height requirement for meeting rotary compressor 100, it is integrally formed part in reduction high
While spending, increase the height of upper lid 4 of rotary compressor 100 so that upper lid 4 and whole height and the implementation for being integrally formed part
Example one it is identical, in addition, the position of the second housing 7 and height maintain keep it is constant.
Embodiment three
As shown in figure 5, the present embodiment is roughly the same with the structure of embodiment one, wherein identical part is attached using identical
Icon is remembered, the difference is that only in the present embodiment, connecting portion 312 and middle casing 2, the one of the first housing 1 of upper bearing (metal) 31
Shaping, the internal perisporium of the periphery wall and connecting portion 312 of the bottom of cylinder section 311 is welded to connect.
The cylinder section 311 of upper bearing (metal) 31 can pull out part or the cold steel pipe of finish rolling for precise cold, and bent axle 32 is connected with upper bearing (metal) 31
Cylinder section 311 typically wear and tear larger, the requirement to the steel of cylinder section 311 is higher, and to the requirement of the steel of connecting portion 312 compared with
It is low, therefore using different steel manufacture cylinder sections 311 and connecting portion 312, ensure steel strength while cost is reduced
It is required that.
Example IV
As shown in fig. 6, the present embodiment is roughly the same with the structure of embodiment one, wherein identical part is attached using identical
Icon is remembered, the difference is that only that the first housing 1 is welded to connect with middle casing 2 in the present embodiment.First housing 1 can be steel
Tubular construction, middle casing 2 is integrally formed with upper bearing (metal) 31, and upper bearing (metal) 31 is integrally formed with middle casing 2 using identical steel,
Processing technology is fairly simple, and the first housing 1 is with middle casing 2 using being welded to connect, and this welding position is located at the outside of housing, weldering
Connect more convenient, in addition, welding procedure comparative maturity, productivity ratio are high, cost is relatively low, it is ensured that the first housing 1 and middle case
The coupling stiffness and overall performance of the integral piece of body 2 and upper bearing (metal) 31.
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 to combine specific features, the knot that the embodiment or example are described
Structure, material or feature are contained at least one embodiment of the present invention or example.In this manual, to above-mentioned term
Schematic representation is not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can in an appropriate manner be combined in any one or more embodiments or example.
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 departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (10)
1. a kind of rotary compressor, it is characterised in that including：
First housing；
Second housing, the upper end of second housing is connected with the lower end of first housing；
Middle casing, the middle casing is connected between first housing and second housing, first housing, institute
State the second housing and the middle casing limits accommodating chamber；With
Compression mechanism, the compression mechanism is located in the accommodating chamber, the compression mechanism include upper bearing (metal), the upper bearing (metal) with
The middle casing connection, and be integrally formed with the middle casing.
2. rotary compressor according to claim 1, it is characterised in that the middle casing and first housing one
It is body formed.
3. rotary compressor according to claim 1, it is characterised in that the middle casing is welded with first housing
Connect in succession.
4. rotary compressor according to claim 1, it is characterised in that under the upper bearing (metal) and the middle casing
End connection.
5. rotary compressor according to claim 1, it is characterised in that the upper bearing (metal) includes：
Cylinder section, the cylinder section is suitable to be set on the bent axle of the compressor；With
Connecting portion, the connecting portion is formed as annular, the internal perisporium of the connecting portion and the periphery of the bottom of the cylinder section
Wall is connected, and the periphery wall of the connecting portion is connected with the middle casing.
6. rotary compressor according to claim 5, it is characterised in that the cylinder section is welded with the connecting portion to be connected
Connect.
7. rotary compressor according to claim 5, it is characterised in that the cylinder section and connecting portion one into
Type.
8. rotary compressor according to claim 1, it is characterised in that first housing, the middle casing and
The minimum thickness of the upper bearing (metal) is H, and the H is met：H≥1.2mm.
9. rotary compressor according to claim 1, it is characterised in that first housing, the middle casing and
The upper bearing (metal) is low-carbon steel part.
10. rotary compressor according to claim 1, it is characterised in that the middle casing and second housing
Boxing is welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710629771.0A CN107218223A (en) | 2017-07-28 | 2017-07-28 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710629771.0A CN107218223A (en) | 2017-07-28 | 2017-07-28 | Rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107218223A true CN107218223A (en) | 2017-09-29 |
Family
ID=59954839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710629771.0A Pending CN107218223A (en) | 2017-07-28 | 2017-07-28 | Rotary compressor |
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| CN (1) | CN107218223A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209876A (en) * | 2018-08-17 | 2019-01-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly, casting mould and rotary compressor |
| CN111594444A (en) * | 2020-05-21 | 2020-08-28 | 黄石东贝电器股份有限公司 | Vertical rotary compressor |
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