CN205503453U - Low pressure chamber rotary compressor - Google Patents
Low pressure chamber rotary compressor Download PDFInfo
- Publication number
- CN205503453U CN205503453U CN201620271029.8U CN201620271029U CN205503453U CN 205503453 U CN205503453 U CN 205503453U CN 201620271029 U CN201620271029 U CN 201620271029U CN 205503453 U CN205503453 U CN 205503453U
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- Prior art keywords
- pump housing
- housing
- low pressure
- pressure chamber
- rotary compressor
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Abstract
An embodiment of the utility model discloses a low pressure chamber rotary compressor, including casing, motor and the pump body, the pump body with be provided with the sealing washer between the shells inner wall, and will pressure different breathe in chamber and exhaust chamber are cut apart into to the inside of casing, wherein, the motor sets up the chamber of breathing in, the lower part of the pump body divides the setting to be in the exhaust chamber, the pump body is fixed through spot welding on the casing. Adopt the embodiment of the utility model provides an in low pressure chamber rotary compressor, fix the pump body on the casing through the fixed mode of spot welding. The intensity of the fixing form pump body of spot welding that adopts the verification can satisfy the operation requirement of compressor, and simultaneously, because it is short to adopt spot welding to compare weld time with the boxing, welding strength is little, and the heat of production will lack, and the pump body can not produce the thermal stress and warp.
Description
Technical field
This utility model relates to Compressor Technology field, more particularly, it relates to a kind of low pressure chamber is rotary
Compressor.
Background technology
Referring to Fig. 1, at present, low pressure chamber rotary compressor includes housing 100, motor 200 and the pump housing 300
(including upper flange 301, cylinder 302 and lower flange 303), by certain of the pump housing 300 in this compressor
Seal between around one part and housing 100, thus enclosure interior is divided into the different suction muffler of pressure and
Discharge chamber, wherein motor is arranged on suction muffler, and its pressure is relatively low, and temperature is relatively low；The pump housing 300
Lower part be arranged on discharge chamber, its pressure and temperature is the most of a relatively high.But, the pump housing 300 and housing 100
The fixed form method that uses boxing, the weld interval of boxing is long, and weld strength is big, and its heat transmits
To the pump housing 300, the pump housing 300 can produce thermal stress deformation, and the pump housing 300 deformation is produced large effect.
Therefore, how to reduce deflection of pump body, become the technical problem that those skilled in the art are urgently to be resolved hurrily.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of low pressure chamber rotary compressor, to subtract
Few deflection of pump body.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of low pressure chamber rotary compressor, including housing, motor and the pump housing, the described pump housing and described shell
Be provided with sealing ring between internal wall, and the inside division of described housing is become the different suction muffler of pressure and
Discharge chamber, wherein, described motor is arranged on described suction muffler, and the lower part of the described pump housing is arranged on described
Discharge chamber, the described pump housing is fixing on the housing by spot welding.
Preferably, in above-mentioned low pressure chamber rotary compressor, the center of the pad of described spot welding is with described
The distance of sealing ring is more than or equal to 10mm.
Preferably, in above-mentioned low pressure chamber rotary compressor, described sealing ring is arranged on the upper of the described pump housing
On the end cap of flange, the cylinder of the described pump housing, the lower flange of the described pump housing or the described pump housing.
Preferably, in above-mentioned low pressure chamber rotary compressor, described sealing ring is soft O.
Preferably, in above-mentioned low pressure chamber rotary compressor, described sealing ring material is fluorubber, hydrogenation
Nitrile rubber, silicone rubber or nitrile rubber.
Preferably, in above-mentioned low pressure chamber rotary compressor, the described pump housing is provided with the described sealing of installation
The groove of circle.
Preferably, in above-mentioned low pressure chamber rotary compressor, the pad of described spot welding is arranged on described pump
On the end cap of the upper flange of body, the cylinder of the described pump housing, the lower flange of the described pump housing or the described pump housing.
Preferably, in above-mentioned low pressure chamber rotary compressor, described housing is provided with and leans on the described pump housing
The limited support structure that one end of nearly described motor is inconsistent.
Preferably, in above-mentioned low pressure chamber rotary compressor, described limited support structure be described housing to
Internal prominent lobe.
Preferably, in above-mentioned low pressure chamber rotary compressor, described limited support structure is described for being arranged on
The circular step of enclosure interior.
Preferably, in above-mentioned low pressure chamber rotary compressor, described limited support structure is by hot jacket side
Formula is fixed on the first fixed block of described enclosure interior.
Preferably, in above-mentioned low pressure chamber rotary compressor, described limited support structure is that several pass through
Welding manner is fixed on the second fixed block of described enclosure interior.
From above-mentioned technical scheme it can be seen that use the low pressure chamber this utility model embodiment rotary
Compressor, is fixed on the pump housing on housing by the fixed form of spot welding.Experiment proves to use consolidating of spot welding
The intensity of the definite form pump housing disclosure satisfy that the use requirement of compressor, simultaneously as use spot welding and boxing
Comparing weld interval short, weld strength is little, and the heat of generation will lack, and the pump housing will not produce thermal stress and become
Shape.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that,
Accompanying drawing in describing below is only embodiments more of the present utility model, for ordinary skill people
From the point of view of Yuan, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings
Figure.
The main TV structure schematic diagram of the spinning rollers compressor that Fig. 1 is provided by prior art；
The main TV structure schematic diagram of the spinning rollers compressor that Fig. 2 is provided by this utility model embodiment one；
Fig. 3 is the enlarged diagram of part A in Fig. 2；
Fig. 4 is the assembling schematic diagram of upper flange and cylinder in Fig. 2；
The main TV structure schematic diagram of the spinning rollers compressor that Fig. 5 is provided by this utility model embodiment two；
Fig. 6 is the enlarged diagram of part B in Fig. 5；
Fig. 7 is the schematic perspective view of upper flange in Fig. 5；
The main TV structure schematic diagram of the spinning rollers compressor that Fig. 8 is provided by this utility model embodiment three；
Fig. 9 is the enlarged diagram of C portion in Fig. 8；
The main TV structure signal of the spinning rollers compressor that Figure 10 is provided by this utility model embodiment four
Figure；
Figure 11 is the enlarged diagram of D part in Figure 10；
The main TV structure signal of the spinning rollers compressor that Figure 12 is provided by this utility model embodiment five
Figure；
Figure 13 is the enlarged diagram of E part in Figure 12；
The main TV structure signal of the spinning rollers compressor that Figure 14 is provided by this utility model embodiment six
Figure；
Figure 15 is the enlarged diagram of F part in Figure 14；
The main TV structure signal of the spinning rollers compressor that Figure 16 is provided by this utility model embodiment seven
Figure；
Figure 17 is the enlarged diagram of G part in Figure 16；
The main TV structure signal of the spinning rollers compressor that Figure 18 is provided by this utility model embodiment eight
Figure；
Figure 19 is the enlarged diagram of H part in Figure 18；
Figure 20 is the main TV structure schematic diagram of Figure 18 middle shell；
Figure 21 is the plan structure schematic diagram of Figure 18 middle shell.
Wherein, 100 be housing, 200 for motor, 300 for the pump housing, 301 for upper flange, 3011 for groove,
302 be cylinder, 303 for lower flange, 304 for end cap, 305 for support, 400 for sealing ring, 500 for weldering
Contact, 601 be lobe, 602 be circular step, 603 be the first fixed block, 604 be the second fixed block.
Detailed description of the invention
Enclosure interior is divided into by arranging sealing ring on a certain parts of the pump housing by prior art thus
Enclosure interior is divided into the different suction muffler of pressure and discharge chamber, and wherein, motor is arranged on suction muffler,
Its pressure is relatively low, and temperature is relatively low；The lower part of the pump housing is arranged on discharge chamber, its pressure and temperature
Spend the most of a relatively high.During compressor operating, suck coolant from the suction nozzle being arranged on upper cover, then by setting
Put the air entry at upper flange and enter cylinder, after cylinder compression, be drained into from the air vent of lower flange
In the discharge chamber of compressor, finally discharge compressor from exhaustor.It is arranged such, at the motor of compressor
Preferable in low temperature suction chamber, reliability and performance；The slide plate of cylinder interior is arranged on high pressure chest, this pressure
Slide plate in contracting machine is identical with the duty of existing high pressure chest rotary compressor, does not haves cunning
The problem that sheet followability is bad；Oil sump is arranged on high pressure chest, can solve low-pressure refrigeration oil and cannot be introduced into pressure
The pump body that power is complicated, the problem affecting pump housing lubrication.
In order to ensure enough sealing properties in prior art, the weldering of the fixing employing boxing of housing and the pump housing
Connect mode, owing to the weld interval of boxing is long, produce heat big, be easily caused the pump housing and produce thermomechanical,
Affect the performance of compressor.Consider to reduce again the pump housing while ensureing sealing property for this utility model people
Thermomechanical, wherein, mode is exactly to reduce the generation of heat in welding process, the most effectively
Mode reduce welding capacity exactly.To this end, utility model people is considered as the Type of Welding of spot welding, use
Spot welding can meet above-mentioned being required really, owing to weld interval is short, and the heat produced in welding process
Few, effectively reduce the thermomechanical of the pump housing, improve the performance of compressor.
Core of the present utility model is open a kind of low pressure chamber rotary compressor, to reduce deflection of pump body；
Another core of the present utility model is to disclose the assembly method of a kind of low pressure chamber rotary compressor.
Hereinafter, referring to the drawings embodiment is illustrated.Additionally, embodiments illustrated below is not to right
Utility model content described in requirement plays any restriction effect.It addition, the structure represented by example below
The full content become is not limited to as necessary to the solution of the utility model described in claim.
Referring to Fig. 2, Fig. 5, Fig. 8, Figure 10, Figure 12, Figure 14, Figure 16 and Figure 18, Fig. 2 is this practicality
The main TV structure schematic diagram of the spinning rollers compressor that new embodiment one is provided；Fig. 5 is this utility model
The main TV structure schematic diagram of the spinning rollers compressor that embodiment two is provided；Fig. 8 is that this utility model is real
Execute the main TV structure schematic diagram of the spinning rollers compressor that example three is provided；Figure 10 is that this utility model is implemented
The main TV structure schematic diagram of the spinning rollers compressor that example four is provided；Figure 12 is this utility model embodiment
The main TV structure schematic diagram of the spinning rollers compressor that five are provided；Figure 14 is this utility model embodiment six
The main TV structure schematic diagram of the spinning rollers compressor provided；Figure 16 is this utility model embodiment seven institute
The main TV structure schematic diagram of the spinning rollers compressor provided；Figure 18 is carried by this utility model embodiment eight
The main TV structure schematic diagram of the spinning rollers compressor of confession.
Low pressure chamber rotary compressor disclosed in this utility model embodiment (follow-up abbreviation compressor), bag
Include housing 100, motor 200 and the pump housing 300, between the pump housing 300 and housing 100 inwall, be provided with sealing ring
400, and the inside division of housing 100 is become the different suction muffler of pressure and discharge chamber, wherein, motor 200
Being arranged on suction muffler, the lower part of the pump housing 300 is arranged on discharge chamber, and the pump housing 300 is fixed on shell by spot welding
On body 100.
Use the compressor in this utility model embodiment, the pump housing 300 is fixed by the fixed form of spot welding
On housing 100.Experiment proves that the intensity using the fixed form pump housing 300 of spot welding disclosure satisfy that compressor
Use requirement, simultaneously as use spot welding short for weld interval compared with boxing, weld strength is little, produce
Raw heat will lack, and the pump housing 300 will not produce thermal stress deformation.
Further in scheme, in order to reduce the pad 500 destruction to sealing ring 400 in welding process,
The center of the pad 500 of spot welding and the distance of sealing ring 400 are more than or equal to 10mm.In distance 10mm position
Putting, in whole welding process, maximum temperature is about 200 DEG C, and in 20mm position, maximum temperature is at 90 DEG C
Below.And the most frequently used viton seal ring 400 can be the most high temperature resistant 200 DEG C.
In order to ensure that the sealing property sealing ring 400 of sealing ring 400 is soft O, sealing ring 400 material
For fluorubber, hydrogenation nitrile rubber, silicone rubber or nitrile rubber.
Sealing ring 400 is arranged on the pump housing 300 by the groove 3011 being arranged on the pump housing 300, groove 3011
It is arranged on the upper flange 301 of the pump housing 300, the cylinder 302 of the pump housing 300, the lower flange 303 of the pump housing 300 or pump
On the end cap 304 of body 300.
And the pad 500 of spot welding is arranged on the upper flange 301 of the pump housing 300, the cylinder 302 of the pump housing 300, pump
On the lower flange 303 of body 300 or the end cap 304 of the pump housing 300.That is, the pad 500 of spot welding and sealing ring 400
Can be arranged on the same parts of the pump housing 300 and can also be arranged on different parts.The most also
Support can be increased on the pump housing to be used for welding.
Refer to Fig. 2 to Fig. 4, in the compressor of this embodiment, the cylinder 302 of the pump housing 300 and housing 100
Between use the welding manner of spot welding to be fixed on housing 100 by the pump housing 300, meanwhile, on upper flange 301 also
It is provided with groove 3011, groove 3011 arranges sealing ring 400 and seals, made by sealing ring 400
Reach sealing effectiveness between upper flange 301 and housing 100, thus compressor has been divided into different pressures
Two cavitys.
Refer to Fig. 5 to Fig. 7, in the compressor of this embodiment, the upper flange 301 of the pump housing 300 and housing
The pump housing 300 is fixed on housing 100 by the welding manner using spot welding between 100, meanwhile, and upper flange 301
On be additionally provided with groove 3011, groove 3011 arranges sealing ring 400, makes upper method by sealing ring 400
Reach sealing effectiveness between blue 301 and housing 100, thus compressor has been divided into two of different pressures
Cavity.
Refer to Fig. 8 to Fig. 9, in the compressor of this embodiment, the upper flange 301 of the pump housing 300 and housing
The pump housing 300 is fixed on housing 100 by the welding manner using spot welding between 100, meanwhile, and upper flange 301
It is additionally provided with groove 3011 on the end cap 304 of upper end, groove 3011 arranges sealing ring 400, by sealing
Circle 400 makes to have reached between end cap 304 and housing 100 sealing effectiveness, thus compressor is divided into difference
Two cavitys of pressure.
Refer to Figure 10 to Figure 11, in the compressor of this embodiment, the upper flange 301 of the pump housing 300 sets
It is equipped with support 305, between support 305 and housing 100, uses the welding manner of spot welding to be fixed on by the pump housing 300
On housing 100, meanwhile, cylinder 302 is additionally provided with groove 3011, groove 3011 arranges sealing ring 400
Seal, make to have reached sealing effectiveness between cylinder 302 and housing 100 by sealing ring 400, thus
Compressor is divided into two cavitys of different pressures.
Refer to Figure 12 to Figure 13, in the compressor of this embodiment, the cylinder 302 of the pump housing 300 and housing
The pump housing 300 is fixed on housing 100 by the mode using spot welding between 100, meanwhile, and the upper method of the pump housing 300
Blue 301 arrange groove 3011, groove 3011 arranges sealing ring 400 and seals, made by sealing ring 400
Obtain and between upper flange 301 and housing 100, reached sealing effectiveness, thus compressor is divided into different pressures
Two cavitys.
During compressor operating, the pump housing 300 side is high pressure chest, and side is low pressure chamber；The height of Normal squeezing machine
Low-voltage differential is several MPas, and compression area is the biggest, and basic and housing 100 lumenal cross-section is long-pending quite, because of
This pump housing 300 is by bigger pressure differential, and Impact direction is to be pointed to low pressure side by high pressure side.
In some cases, spot-welded intensity is not enough to support gas pressure, therefore, housing 100 sets
It is equipped with the limited support structure inconsistent near one end of motor 200 with the pump housing 300, to reduce spot welding stress,
Proof strength, refers to shown in Figure 12 to Figure 21.
Wherein, in Figure 12 and Figure 13, limited support structure is the lobe 601 that housing 100 internally highlights.
In Figure 14 and Figure 15, limited support structure is to be arranged on the circular step 602 within housing 100.
In Figure 16 and Figure 17, limited support structure is to be fixed on first within housing 100 by hot jacket mode
Fixed block 603.
In Figure 18 to Figure 21, limited support structure is that several are fixed on housing 100 inside by welding manner
The second fixed block 604, welding manner can be electric resistance welding.
The invention also discloses the assembly method of a kind of compressor, described low pressure chamber rotary compressor
For the low pressure chamber rotary compressor described in any of the above-described technical scheme, the method includes:
A. assemble the pump housing 300, and package the rotor of motor 200；
B. on the pump housing 300, assemble sealing ring 400, and dispose clearance gauge in the rotor upper end of motor 200；
C. the housing 100 that will be equipped with motor 200 is inserted in the pump housing 300；
D. the pump housing 300 is carried out spot welding to fix；
D. clearance gauge is extracted；
E. subsequent compression machine production stage is completed.
This assembly method, stator and the rotor coaxial degree of the motor 200 of compressor ensure by clearance gauge.
Before spot-welded, stator and rotor coaxial degree are in axial equally distributed clearance gauge lower limit, spot-welded
Between the rear pump housing 300 and housing 100 the most fixing, extract clearance gauge, stator and rotor and still can keep original
Axiality.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
This utility model.Multiple amendment to these embodiments will be aobvious for those skilled in the art
And be clear to, generic principles defined herein can be without departing from spirit or scope of the present utility model
In the case of, realize in other embodiments.Therefore, this utility model is not intended to be limited to institute herein
These embodiments shown, and it is to fit to consistent with principles disclosed herein and features of novelty the widest
Scope.
Claims (12)
1. a low pressure chamber rotary compressor, including housing (100), motor (200) and the pump housing (300),
Sealing ring (400) it is provided with between the described pump housing (300) and described housing (100) inwall, and by institute
State the inside division of housing (100) and become the different suction muffler of pressure and discharge chamber, wherein, described motor (200)
Being arranged on described suction muffler, the lower part of the described pump housing (300) is arranged on described discharge chamber, and its feature exists
In, the described pump housing (300) is fixed on described housing (100) by spot welding.
2. low pressure chamber rotary compressor as claimed in claim 1, it is characterised in that described spot welding
The center of pad (500) is more than or equal to 10mm with the distance of described sealing ring (400).
3. low pressure chamber rotary compressor as claimed in claim 2, it is characterised in that described sealing ring
(400) upper flange (301) of the described pump housing (300), the cylinder of the described pump housing (300) it are arranged on
(302), the lower flange (303) of the described pump housing (300) or the end cap (304) of the described pump housing (300)
On.
4. low pressure chamber rotary compressor as claimed in claim 3, it is characterised in that described sealing ring
(400) it is soft O.
5. low pressure chamber rotary compressor as claimed in claim 4, it is characterised in that described sealing ring
(400) material is fluorubber, hydrogenation nitrile rubber, silicone rubber or nitrile rubber.
6. low pressure chamber rotary compressor as claimed in claim 3, it is characterised in that the described pump housing (300)
On be provided with install described sealing ring (400) groove (3011).
7. low pressure chamber rotary compressor as claimed in claim 3, it is characterised in that described spot welding
Pad (500) is arranged on the upper flange (301) of the described pump housing (300), the described pump housing (300)
Cylinder (302), the lower flange (303) of the described pump housing (300) or the end of the described pump housing (300)
On lid (304).
8. the low pressure chamber rotary compressor as according to any one of claim 1 to 7, it is characterised in that
One end phase of described motor (200) close with the described pump housing (300) it is provided with on described housing (100)
The limited support structure conflicted.
9. low pressure chamber rotary compressor as claimed in claim 8, it is characterised in that described spacing
Support structure is the lobe (601) that described housing (100) is internally prominent.
10. low pressure chamber rotary compressor as claimed in claim 8, it is characterised in that described spacing
Support structure is for be arranged on the circular step (602) inside described housing (100).
11. low pressure chamber rotary compressors as claimed in claim 8, it is characterised in that described spacing
Support structure is for being fixed on, by hot jacket mode, the first fixed block (603) that described housing (100) is internal.
12. low pressure chamber rotary compressors as claimed in claim 8, it is characterised in that described spacing
Support structure is that several are fixed on, by welding manner, the second fixed block that described housing (100) is internal
(604)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620271029.8U CN205503453U (en) | 2016-03-31 | 2016-03-31 | Low pressure chamber rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620271029.8U CN205503453U (en) | 2016-03-31 | 2016-03-31 | Low pressure chamber rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205503453U true CN205503453U (en) | 2016-08-24 |
Family
ID=56735695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620271029.8U Expired - Fee Related CN205503453U (en) | 2016-03-31 | 2016-03-31 | Low pressure chamber rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205503453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288879A (en) * | 2016-03-31 | 2017-10-24 | 珠海凌达压缩机有限公司 | A kind of low pressure chamber rotary compressor and its assembly method |
-
2016
- 2016-03-31 CN CN201620271029.8U patent/CN205503453U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288879A (en) * | 2016-03-31 | 2017-10-24 | 珠海凌达压缩机有限公司 | A kind of low pressure chamber rotary compressor and its assembly method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |