CN204558169U - A kind of compressor electric motor insulation system adopting combustible refrigerant - Google Patents
A kind of compressor electric motor insulation system adopting combustible refrigerant Download PDFInfo
- Publication number
- CN204558169U CN204558169U CN201420719777.9U CN201420719777U CN204558169U CN 204558169 U CN204558169 U CN 204558169U CN 201420719777 U CN201420719777 U CN 201420719777U CN 204558169 U CN204558169 U CN 204558169U
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- Prior art keywords
- heat
- shrinkable
- bush
- insulation system
- pet
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- 238000009413 insulation Methods 0.000 title claims abstract description 31
- 239000003507 refrigerant Substances 0.000 title claims abstract description 29
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 44
- 230000008878 coupling Effects 0.000 claims abstract description 18
- 238000010168 coupling process Methods 0.000 claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 claims abstract description 18
- 229920002799 BoPET Polymers 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000010892 electric spark Methods 0.000 abstract description 8
- 238000005303 weighing Methods 0.000 abstract description 7
- 238000003466 welding Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical group CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 238000004200 deflagration Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Compressor (AREA)
Abstract
The utility model provides a kind of insulation system, for adopting the compressor electric motor of combustible refrigerant, this insulation system comprises the heat-shrinkable T bush of one end sealing, heat-shrinkable T bush is sheathed on the lead-out wire of compressor electric motor and the outside of lead-out wire coupling part, heat-shrinkable T bush is that PET film winding forms tubulose, and heat-shrinkable T bush is away from one end pyrocondensation forming seal of described lead-out wire coupling part.This insulation system also comprises the PET sleeve pipe of one end sealing, and PET casing pipe sleeve is located at the outside of heat-shrinkable T bush.The utility model adopts heat-shrinkable T bush, is fixed and seals, prevent the generation of electric spark to the lead-out wire of motor and lead-out wire coupling part, ensures the security of operation of the compressor adopting combustible refrigerant; The outer sheathed PET sleeve pipe again of heat-shrinkable T bush, can prevent welding burr weighing wounded enamelled wire, avoid the generation of turn-to-turn short circuit, ensure the security of operation of the compressor adopting combustible refrigerant further.
Description
Technical field
The present invention relates to a kind of motor insulation structure, particularly relate to a kind of compressor electric motor insulation system adopting combustible refrigerant.
Background technology
Compressor (compressor), low-pressure gas is promoted to a kind of driven fluid machinery of gases at high pressure, it is the heart of refrigerating system, it sucks the refrigerant gas of low-temp low-pressure from air intake duct, after driving piston to compress it by motor rotation, discharge the refrigerant gas of HTHP to blast pipe, for kind of refrigeration cycle provides power, thus realize the kind of refrigeration cycle of compression → condensation (heat release) → expand → evaporate (heat absorption).
R22 is most popular middle low-temperature refrigerant, be mainly used in air-conditioning, Teat pump boiler, dehumidifier, refrigerant type dryer, freezer, freezing equipment, refrigeration plant and supermarket display cabinet etc., but R22 belongs to HCFC class cold-producing medium, according to Montreal Agreement book regulation, will eliminate before the year two thousand thirty comprehensively.
R290 chemical name is propane, molecular formula C3H8, has environmental protection and efficient double grading.
R290 is the material that a kind of occurring in nature exists, and only containing carbon and hydrogen in molecule, not containing chlorine and fluorine, destroying ozone latent energy value (ODP) is zero, to ozone layer without any injury; Global warming coefficient (GWP) is extremely low, produces greenhouse effect hardly, has outstanding environment friendly, is long-term substitute materials.
R290 has outstanding thermodynamic property, and during carried air conditioning system, efficiency compares R22 obvious lifting, and system cost can decline to a great extent.
Just because of these advantages of R290, R290 refrigerant product receives the extensive concern of refrigeration industry.
But R290 has combustibility, therefore when being applied to refrigerating system, need emphatically to consider safety issue.
Because R22 is non-combustible, cold-producing medium adopts the compressor of R22 not need to consider electrical safety problems specially, and cold-producing medium adopts the compressor of R290, need to consider electrical safety problems specially, improve the insulation system of motor, to prevent electric spark from producing, prevent deflagration accident having.
Summary of the invention
The purpose of this utility model is to provide a kind of insulation system, and for adopting the compressor electric motor of combustible refrigerant, this insulation system can prevent the generation of electric spark, turn-to-turn short circuit, improves the fail safe of compressor operating.
The utility model provides a kind of insulation system, for adopting the compressor electric motor of combustible refrigerant, this insulation system comprises PET heat-shrinkable T bush and is sheathed on the PET sleeve pipe of heat-shrinkable T bush outside, and heat-shrinkable T bush is sheathed on the outside of the lead-out wire of compressor electric motor until lead-out wire coupling part.
Heat-shrinkable T bush has good insulating properties; be sheathed on the lead-out wire of compressor electric motor and the outside of lead-out wire coupling part; effective insulation protection can be provided for the lead-out wire of motor and lead-out wire coupling part; prevent the generation of electric spark, ensure the security of operation of the compressor electric motor adopting combustible refrigerant.
The outer sheathed PET sleeve pipe again of heat-shrinkable T bush, can prevent welding burr from weighing lead-out wire wounded, thus prevent the generation of turn-to-turn short circuit, ensure the security of operation of the compressor adopting combustible refrigerant further.
Further, the heat-resistance index RTI of PET heat-shrinkable T bush is not less than 105 DEG C.
Further, the thickness of PET heat-shrinkable T bush film is 0.036-0.13mm.
Further, one end of PET heat-shrinkable T bush arranges one section of sleeve pipe that external diameter is less than heat-shrinkable T bush external diameter.
Adopt said structure, the sleeve pipe of the various outer diameter of PET heat-shrinkable T bush one end forms step, and when preventing PET heat-shrinkable T bush to be set on compressor electric motor lead-out wire, compressor electric motor lead-out wire passes from the other end of PET heat-shrinkable T bush.
Further, PET sleeve pipe is that PET film winding forms tubulose.
Further, the number of plies of PET film winding is layer 2-4.
The number of plies of PET film winding is layer 2-4, ensures that the PET sleeve pipe formed has enough thickness, can prevent welding burr from weighing lead-out wire wounded better, thus prevent the generation of turn-to-turn short circuit, ensure the security of operation of the compressor adopting combustible refrigerant further.
Further, the heat-resistance index RTI of PET sleeve pipe is not less than 130 DEG C.
Further, PET overlaps the thickness of effective film is 0.05-0.1mm.
Further, PET sleeve pipe adopts ultrasonic bonding sealing away from one end of described lead-out wire coupling part.
Further, the compressor electric motor of combustible refrigerant is adopted to be the compressor electric motor adopting R290.
The compressor electric motor insulation system for adopting combustible refrigerant that the utility model provides, has following beneficial effect:
(1) adopt PET heat-shrinkable T bush, the lead-out wire of motor and lead-out wire coupling part are fixed and are sealed, prevents the generation of electric spark, ensure the security of operation of the compressor adopting combustible refrigerant;
(2) the outer sheathed PET sleeve pipe again of PET heat-shrinkable T bush, can prevent welding burr weighing wounded enamelled wire, avoid the generation of turn-to-turn short circuit, ensure the security of operation of the compressor adopting combustible refrigerant further.
Accompanying drawing explanation
Fig. 1 is the motor lead-out wire of an embodiment of the present utility model and the schematic diagram of lead-out wire coupling part.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to following examples.
The cold-producing medium that compressor in the present embodiment adopts is R290, because R290 has combustibility, needs to consider electrical safety problems specially, improves the insulation system of motor, to prevent electric spark from producing, prevent deflagration accident having.
As shown in Figure 1, motor lead-out wire 1 outside is wound around enamelled wire 3 for motor lead-out wire 1 in the present embodiment and lead-out wire coupling part 2.The insulation system of the present embodiment, comprise PET heat-shrinkable T bush and be sheathed on the PET sleeve pipe of heat-shrinkable T bush outside, heat-shrinkable T bush is sheathed on the outside of the lead-out wire of compressor electric motor until lead-out wire coupling part, and PET heat-shrinkable T bush is sheathed on the outside of the lead-out wire 1 of compressor electric motor until lead-out wire coupling part 2.
The insulation system of the present embodiment; heat-shrinkable T bush has good insulating properties; be sheathed on the lead-out wire of compressor electric motor and the outside of lead-out wire coupling part; effective insulation protection can be provided for the lead-out wire of motor and lead-out wire coupling part; prevent the generation of electric spark, ensure the security of operation of the compressor electric motor adopting combustible refrigerant.
The insulation system of the present embodiment, heat-shrinkable T bush sheathed PET sleeve pipe more outward, can prevent welding burr from weighing lead-out wire wounded, thus prevent the generation of turn-to-turn short circuit, ensure the security of operation of the compressor adopting combustible refrigerant further.
The heat-resistance index RTI of PET film is not less than 105 DEG C.
The thickness of PET film is 0.036-0.13mm.
One end of PET heat-shrinkable T bush arranges one section of sleeve pipe that external diameter is less than heat-shrinkable T bush external diameter.
Adopt said structure, the sleeve pipe of the various outer diameter of PET heat-shrinkable T bush one end forms step, and when preventing PET heat-shrinkable T bush to be set on compressor electric motor lead-out wire, compressor electric motor lead-out wire passes from the other end of PET heat-shrinkable T bush.
PET sleeve pipe is that PET film winding forms tubulose.
The number of plies of PET film winding is layer 2-4.
The heat-resistance index RTI of PET sleeve pipe is not less than 130 DEG C.
The thickness that PET overlaps effective film is 0.05-0.1mm.
In the present embodiment, the thickness that PET overlaps effective film is 0.075mm.
In the present embodiment, the number of plies of PET film winding is layer 2-4, ensures that the PET sleeve pipe formed has enough thickness, can prevent welding burr from weighing lead-out wire wounded better, thus prevent the generation of turn-to-turn short circuit, ensure the security of operation of the compressor adopting combustible refrigerant further.
PET sleeve pipe adopts ultrasonic bonding sealing away from one end of described lead-out wire coupling part.
The utility model is also applicable to the compressor electric motor adopting other combustible refrigerants, such as: the compressor electric motor adopting R32.
The compressor electric motor insulation system for adopting combustible refrigerant that the utility model provides, adopt heat-shrinkable T bush, the lead-out wire of motor and lead-out wire coupling part are fixed and are sealed, prevents the generation of electric spark, ensure the security of operation of the compressor adopting combustible refrigerant; The outer sheathed PET sleeve pipe again of heat-shrinkable T bush, can prevent welding burr weighing wounded enamelled wire, avoid the generation of turn-to-turn short circuit, ensure the security of operation of the compressor adopting combustible refrigerant further.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technical staff in the art according to design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection range of claims.
Claims (10)
1. an insulation system, for adopting the compressor electric motor of combustible refrigerant, it is characterized in that, described insulation system comprises PET heat-shrinkable T bush and is sheathed on the PET sleeve pipe of described heat-shrinkable T bush outside, and described heat-shrinkable T bush is sheathed on the outside of the lead-out wire of described compressor electric motor until lead-out wire coupling part.
2. insulation system as claimed in claim 1, it is characterized in that, the heat-resistance index RTI of described PET heat-shrinkable T bush is not less than 105 DEG C.
3. insulation system as claimed in claim 1, it is characterized in that, the thickness of described PET heat-shrinkable T bush film is 0.036-0.13mm.
4. insulation system as claimed in claim 1, is characterized in that, one end of described PET heat-shrinkable T bush arranges one section of sleeve pipe that external diameter is less than described heat-shrinkable T bush external diameter.
5. insulation system as claimed in claim 1, is characterized in that, described PET sleeve pipe is that PET film winding forms tubulose.
6. insulation system as claimed in claim 5, is characterized in that, the number of plies of described PET film winding is layer 2-4.
7. insulation system as claimed in claim 1, it is characterized in that, the heat-resistance index RTI of described PET sleeve pipe is not less than 130 DEG C.
8. insulation system as claimed in claim 1, it is characterized in that, the thickness that described PET overlaps effective film is 0.05-0.1mm.
9. insulation system as claimed in claim 1, is characterized in that, described PET sleeve pipe adopts ultrasonic bonding sealing away from one end of described lead-out wire coupling part.
10. insulation system as claimed in claim 1, is characterized in that, the compressor electric motor of described employing combustible refrigerant is the compressor electric motor adopting R290.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719777.9U CN204558169U (en) | 2014-11-25 | 2014-11-25 | A kind of compressor electric motor insulation system adopting combustible refrigerant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719777.9U CN204558169U (en) | 2014-11-25 | 2014-11-25 | A kind of compressor electric motor insulation system adopting combustible refrigerant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204558169U true CN204558169U (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420719777.9U Expired - Fee Related CN204558169U (en) | 2014-11-25 | 2014-11-25 | A kind of compressor electric motor insulation system adopting combustible refrigerant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204558169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264907A (en) * | 2021-12-22 | 2022-04-01 | 上海仪器仪表自控系统检验测试所有限公司 | Contact electric element safety test device in combustible refrigerant equipment |
-
2014
- 2014-11-25 CN CN201420719777.9U patent/CN204558169U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264907A (en) * | 2021-12-22 | 2022-04-01 | 上海仪器仪表自控系统检验测试所有限公司 | Contact electric element safety test device in combustible refrigerant equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201206 Pudong New Area Jinqiao Ning Road, Shanghai, No. 888 Patentee after: SHANGHAI HIGHLY ELECTRICAL APPLIANCES Co.,Ltd. Address before: 201206 Pudong New Area Jinqiao Ning Road, Shanghai, No. 888 Patentee before: SHANGHAI HITACHI ELECTRICAL APPLICANCES Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |