CN206409365U - A kind of freezer compressor crankcase structure - Google Patents
A kind of freezer compressor crankcase structure Download PDFInfo
- Publication number
- CN206409365U CN206409365U CN201621399844.9U CN201621399844U CN206409365U CN 206409365 U CN206409365 U CN 206409365U CN 201621399844 U CN201621399844 U CN 201621399844U CN 206409365 U CN206409365 U CN 206409365U
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- boss
- face
- compressor
- crankcase
- cylinder
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Abstract
The utility model discloses a kind of freezer compressor crankcase structure, including crankcase end face, boss, cylinder-bore, screw hole face and transfer port, boss and screw hole face are respectively arranged on crankcase end face, and cylinder-bore is on boss, boss is flushed with screw hole face, and boss is higher than crankcase end face.It can be connected between screw hole face and boss using dowel, oilhole can be opened up on the side of dowel.The heat transfer resistance of cylinder wall surface can be reduced when compressor compresses are vented using the utility model structure, increase radiating, and increasing the heat transfer resistance of cylinder wall surface when expanding air-breathing, the refrigerant of reduction suction cylinder is by the degree of heat of wall, so as to lift the thermal efficiency of compressor.Meanwhile, it can also improve the sealing of compressor head, so as to lift the performance and reliability of compressor.
Description
Technical field
The utility model is related to freezer compressor technical field, specifically a kind of to be applied to small-sized reciprocating-piston ice
The crankcase structure of header compressor.
Background technology
Compressor efficiency mainly includes mechanical efficiency, electric efficiency and volumetric efficiency.At present, in terms of volumetric efficiency is lifted
A main direction of studying be reduction the compressor air suction degree of superheat.Because too high suction temperature can cause to enter compressor gas
The refrigerant density reduction of cylinder is the refrigerating capacity reduction of compressor, and also results in the increase of work done during compression.The shadow of these two aspects
The performance indications COP that sound eventually results in compressor is remarkably decreased.
The method that compressor efficiency is lifted by reducing the compressor air suction degree of superheat conventional at present mainly has two kinds.Side
Method one is to reduce compressor internal high temperature thermal source in suction side to heat the low-temperature refrigerant of suction, mainly by using rubber ripple
The nonmetallic materials parts such as line pipe, plastics air suction silencer constitute suction line, to increase compressor internal heat resource to air-breathing
The thermal resistance of channel interior heat transfer, reduces heat transfer.Method two is to reduce the high-temperature high-pressure refrigerant thermal source after compression to compression
The heating of pump body, the particularly heating to suction line, cylinder wall surface are general using plastics valve plate, plastics muffler
Realized etc. the gas exhaust piping that nonmetallic materials part constitutes closing.But in crucial compressor piston cylinder region, go back at present
Without the method for lifting the thermal efficiency well, being primarily due to compressor operationally has four-stage：Expansion-air-breathing-pressure
Contracting-exhaust, wishes that the heat that compressor compresses refrigerant is produced can run through wall and shed in compression, exhaust phase, and
Wish that wall can hinder the refrigerant for delaying the thermal source of outside to heat suction cylinder by wall again in expansion expiratory phase.This
The demand of conflict result in the scheme for being difficult to that suitable lifting compressor heat efficiency is found in compresser cylinder region at present.
The content of the invention
Technical problem to be solved in the utility model is to propose a kind of thermal efficiency and compressor for improving compressor
The sealing of cylinder head, so as to lift the performance of compressor and the freezer compressor crankcase structure of reliability.
In order to solve the above technical problems, a kind of freezer compressor of the utility model includes crankcase end with crankcase structure
Face, boss, cylinder-bore, screw hole face and transfer port, boss and the screw hole face are respectively arranged on the crankcase end face, institute
Cylinder-bore is stated on the boss, the boss is flushed with the screw hole face, the boss is higher than the crankcase end face.
A kind of above-mentioned freezer compressor crankcase structure, it also includes dowel and oilhole, the dowel connection
The screw hole face and the boss, the oilhole are opened on the side of the dowel.
A kind of above-mentioned freezer compressor crankcase structure, the boss is higher than the crankcase end face 2mm~5mm.
Nonmetallic materials are coated with a kind of above-mentioned freezer compressor crankcase structure, the crankcase end face.
The utility model is as a result of above-mentioned technical pattern, the crankcase knot used with the current refrigerator shown in Fig. 3
Structure is compared, and it can reduce the heat transfer resistance of cylinder wall surface, increase radiating when compressor compresses are vented, and increase when expanding air-breathing
The heat transfer resistance of big cylinder wall surface, the refrigerant of reduction suction cylinder is by the degree of heat of wall, so as to lift compressor
The thermal efficiency.Meanwhile, after the utility model crankcase and compressor valve assembling are matched somebody with somebody, the contact surface of valve plate and crankcase can be reduced
Product, reduces heat transfer.Moreover, refrigeration oil can flow in the gap between crankcase end face and valve plate, heat is taken away rapidly.
Further, since its sealing area is only boss face, sealing surface is small, it is easy to seal, and seals more reliable, can effectively lift compressor cylinder
Head sealing property.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the utility model crankcase；
Fig. 2 is another structural representation of the utility model crankcase；
Fig. 3 is the structural representation of current refrigerator compressors crankcase.
Embodiment
As shown in figure 1, the utility model crankcase structure include crankcase end face 1, boss 2, cylinder-bore 3, dowel 4,
Screw hole face 5, transfer port 6 and oilhole 7.Boss 2 is flushed with screw hole face 5, higher than the about 2mm~5mm of crankcase end face 1.Cylinder
Hole 3 is opened in the center of boss 2.The attachment screw hole face 5 of dowel 4 and boss 2, while being opened up in the side of dowel 4
There is oilhole 7.Crankcase end face 1 can use nonmetallic materials such as PEEK, PBT, nylon（Heat-barrier material）Spraying, to reduce exhaust
Heating of the side high temperature heat source to cylinder.
Fig. 2 show the another embodiment of the utility model crankcase structure, including crankcase end face 1, boss 2,
Cylinder-bore 3, screw hole face 5 and transfer port 6.Boss 2 is flushed with screw hole face 5, higher than the about 2mm~5mm of crankcase end face 1.Gas
Cylinder holes 3 is opened in the center of boss 2.Crankcase end face 1 can use nonmetallic materials such as PEEK, PBT, nylon（It is heat-insulated
Material）Spraying, to reduce heating of the exhaust side high temperature heat source to cylinder.
Claims (4)
1. a kind of freezer compressor crankcase structure, it is characterised in that it includes crankcase end face, boss, cylinder-bore, screw
Hole face and transfer port, boss and the screw hole face are respectively arranged on the crankcase end face, and the cylinder-bore is located at described convex
On platform, the boss is flushed with the screw hole face, and the boss is higher than the crankcase end face.
2. a kind of freezer compressor crankcase structure as claimed in claim 1, it is characterised in that it also includes dowel
And oilhole, the dowel connects the screw hole face and the boss, and the oilhole is opened on the side of the dowel.
3. a kind of freezer compressor crankcase structure as claimed in claim 1 or 2, it is characterised in that the boss is higher than
The crankcase end face 2mm~5mm.
4. a kind of freezer compressor crankcase structure as claimed in claim 1 or 2, it is characterised in that the crankcase end
Nonmetallic materials are coated with face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621399844.9U CN206409365U (en) | 2016-12-19 | 2016-12-19 | A kind of freezer compressor crankcase structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621399844.9U CN206409365U (en) | 2016-12-19 | 2016-12-19 | A kind of freezer compressor crankcase structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206409365U true CN206409365U (en) | 2017-08-15 |
Family
ID=59551169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621399844.9U Active CN206409365U (en) | 2016-12-19 | 2016-12-19 | A kind of freezer compressor crankcase structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206409365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545485A (en) * | 2016-12-19 | 2017-03-29 | 加西贝拉压缩机有限公司 | A kind of freezer compressor crankcase structure |
-
2016
- 2016-12-19 CN CN201621399844.9U patent/CN206409365U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545485A (en) * | 2016-12-19 | 2017-03-29 | 加西贝拉压缩机有限公司 | A kind of freezer compressor crankcase structure |
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| GR01 | Patent grant |