CN2201557Y - Spiral throttle expansion valve - Google Patents
Spiral throttle expansion valve Download PDFInfo
- Publication number
- CN2201557Y CN2201557Y CN 94208937 CN94208937U CN2201557Y CN 2201557 Y CN2201557 Y CN 2201557Y CN 94208937 CN94208937 CN 94208937 CN 94208937 U CN94208937 U CN 94208937U CN 2201557 Y CN2201557 Y CN 2201557Y
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- CN
- China
- Prior art keywords
- utility
- copper pipe
- model
- pipe
- expansion valve
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a spiral throttling expansion valve, the utility model is composed of a copper pipe and a metal cylinder arranged in the copper pipe, and the utility model replaces a capillary pipe; besides, the inner diameter of the metal cylinder equals that of the copper pipe, and the surface of the body of the metal cylinder is provided with screw thread. The two ends of the copper pipe are respectively connected with a dry filter and an evaporator, the dry filter and the evaporator are arranged behind a condenser, and a freon medium flows in through one end of a metal pipe and flows out from the other end of the metal pipe through a screw thread channel. Because the sectional plane of the screw thread channel is small an is spindly, the utility model also has a throttling function. The utility model overcomes the original disadvantages of the capillary pipe that the capillary pipe is easily broken and deformed, and the utility model has the advantages of stable flow capacity and low price; besides, the connection of the utility model, the dry filter and the evaporator is simpler than the former connection; thus, technology is simplified, and labour productivity is raised.
Description
The utility model relates to the improvement of refrigerator structure, refers more particularly to structure improved throttle expansion valve capillaceous in the refrigerator.
Its refrigerating part of household electric refrigerator is a vitals of refrigerator, also is the refrigeration key of refrigerator.Refrigerator refrigerating part commonly used is made up of compressor, condenser, device for drying and filtering, capillary tube, vaporizer, wherein capillary tube be one in the future the normal temperature high voltage freon medium of self cooling condenser make its expenditure and pressure, introduce vaporizer by it then, because of the vaporizer caliber much larger than the capillary tube caliber, so expand with regard to burst and the heat absorption evaporation when the freon medium enters vaporizer, thereby make refrigeration system reach the purpose of refrigeration.
From the above, capillary tube must be one to have pipe continuous periphery, that meet tight diameter tolerance, that internal diameter is little, not only it makes complicated, need through drawing repeatedly with copper tubing, yield rate is not high, and easily produce distortion and fracture when using and make the refrigerator assembling, thereby it is a big problem that directly relates to refrigerator quality, yield rate, labour productivity and cost.
The purpose of this utility model is to improve refrigerator structure capillaceous, makes that it is made easily, stability of flow, reliable in quality, cost reduce.
The purpose of this utility model is achieved in that the spiral throttle expansion valve replaces capillary tube with a copper pipe and the throttle valve that is arranged in this copper pipe and the copper pipe internal diameter equates, shows screwed steel Cylinder composition one on the body therewith.The two ends of copper pipe respectively with condenser after device for drying and filtering be connected with vaporizer, the freon medium flows into, flows out the other end through screw channel from an end of steel pipe, because the screw channel cross section is little and elongated, thereby has also played throttling action.
It is not only easy to process to adopt the throttle valve of this structure to replace capillary tube, price is low, the validity height, overcome the disadvantage that original capillary tube is yielding, fracture, inexpensive, and stability of flow, it was also easy with being connected of device for drying and filtering, vaporizer, thereby can simplify technology greatly and raise labour productivity.
Further specify with drawings and Examples below.
Fig. 1 replaces spiral throttle expansion valve capillaceous in the refrigerator.
A kind of spiral throttle expansion valve of capillary pipe structure improvement comprises a copper pipe 1 in the refrigerator as seen from Figure 1, the internal diameter that it is characterized in that copper pipe 1 is equal to or slightly less than vaporizer copper pipe diameter, copper pipe 1 with its in diameter of being provided with equate with the copper pipe internal diameter, show screwed cylindrical body 2 composition one on the body, steel pipe slightly is longer than at the copper pipe two ends.
In above-mentioned spiral throttle expansion valve, the diameter of cylindrical body 2 is 4～40mm, and pitch is 0.5～4mm, and the helix angle of screw thread is 30～60 °, and reach is different and different with the capacity of refrigerator, is generally 20～150mm.The length at copper pipe 1 two ends is long than metal tube 2 in the spiral throttle expansion valve, so that copper pipe 1 engages with device for drying and filtering and vaporizer conveniently.
Replace capillary tube in the refrigerator with the spiral throttle expansion valve of said structure, refrigeration is fine through testing after, has not only overcome former preceding distortion, the disadvantage that fractures, and easy to make, simple and convenient assembly, thus improved the quality and the productivity of refrigerator greatly.
Claims (2)
1, a kind of spiral throttle expansion valve comprises a copper pipe, it is characterized in that: the internal diameter of copper pipe is equal to or slightly less than vaporizer copper pipe diameter, copper pipe with its in diameter of being provided with equate with the copper pipe internal diameter, show screwed metal cylinder composition one on the body, metal tube slightly is longer than at the copper pipe two ends.
2, spiral throttle expansion valve according to claim 1 is characterized in that: the metal cylinder diameter is 4-40mm, and pitch is 0.5-4mm, and the helix angle of screw thread is 30-60 ℃, and reach is 20-150mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94208937 CN2201557Y (en) | 1994-04-18 | 1994-04-18 | Spiral throttle expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94208937 CN2201557Y (en) | 1994-04-18 | 1994-04-18 | Spiral throttle expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2201557Y true CN2201557Y (en) | 1995-06-21 |
Family
ID=33826784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94208937 Expired - Fee Related CN2201557Y (en) | 1994-04-18 | 1994-04-18 | Spiral throttle expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2201557Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1886630B (en) * | 2003-11-28 | 2010-05-12 | Bsh博世和西门子家用器具有限公司 | Suction-throttle pipe for a refrigerating appliance, and device for the production thereof |
| CN102997541A (en) * | 2012-12-26 | 2013-03-27 | 合肥美的荣事达电冰箱有限公司 | Refrigerator |
| CN103673427A (en) * | 2012-09-21 | 2014-03-26 | 珠海格力电器股份有限公司 | Throttling tooling and refrigerant recycling device comprising same |
-
1994
- 1994-04-18 CN CN 94208937 patent/CN2201557Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1886630B (en) * | 2003-11-28 | 2010-05-12 | Bsh博世和西门子家用器具有限公司 | Suction-throttle pipe for a refrigerating appliance, and device for the production thereof |
| CN103673427A (en) * | 2012-09-21 | 2014-03-26 | 珠海格力电器股份有限公司 | Throttling tooling and refrigerant recycling device comprising same |
| CN103673427B (en) * | 2012-09-21 | 2016-08-24 | 珠海格力电器股份有限公司 | Throttling frock and there is the refrigerant recovery device of this throttling frock |
| CN102997541A (en) * | 2012-12-26 | 2013-03-27 | 合肥美的荣事达电冰箱有限公司 | Refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |