CN102901291A - Refrigerant electric heating device of air conditioner outdoor machine - Google Patents
Refrigerant electric heating device of air conditioner outdoor machine Download PDFInfo
- Publication number
- CN102901291A CN102901291A CN201210367807XA CN201210367807A CN102901291A CN 102901291 A CN102901291 A CN 102901291A CN 201210367807X A CN201210367807X A CN 201210367807XA CN 201210367807 A CN201210367807 A CN 201210367807A CN 102901291 A CN102901291 A CN 102901291A
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- CN
- China
- Prior art keywords
- housing
- refrigerant
- electric heating
- casing
- electrothermal tube
- 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.)
- Granted
Links
- 239000003507 refrigerant Substances 0.000 title claims abstract description 38
- 238000005485 electric heating Methods 0.000 title claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 19
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- 229910052710 silicon Inorganic materials 0.000 claims description 13
- 239000010703 silicon Substances 0.000 claims description 13
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 12
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 7
- 239000000395 magnesium oxide Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000010257 thawing Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 2
- 238000009413 insulation Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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Abstract
The invention relates to an electric heating device, in particular to a refrigerant electric heating device of an air conditioner outdoor machine. The refrigerant electric heating device of the air conditioner outdoor machine is used for performing defrosting on the air conditioner outdoor machine and comprises a cylindrical casing. The front end of the casing is closed, a side wall of a front section of the casing is provided with a refrigerant inlet connected with a refrigerant tube, the refrigerant tube is in sealing connection with the casing in a welding mode, and the back end of the casing is provided with a refrigerant outlet. The center of the casing is provided with an electric heating tube, and an electrode of the electric heating tube is led out from the front end of the casing. The electric heating tube comprises a tube casing, a heating wire and a heat-conducting insulation medium, wherein the heating wire and the heat-conducting insulation medium are positioned in the tube casing. An outer wall of the tube casing is provided with spiral cooling fins, and the outer edges of the cooling fins are in gap match with the inner diameter of the casing to enable a spiral refrigerant channel between the tube casing and the casing. The refrigerant electric heating device is compact in structure, high in heating efficiency, good in sealing performance and reliable in operation.
Description
Technical field
The present invention relates to a kind of electric heater unit, specifically a kind of air-conditioner outdoor unit refrigerant electric heating device for the air conditioner outdoor machine defrosting function.
Background technology
In the winter time, frosting is the main cause that affects the heat pump air conditioner heating effect.When outdoor environment temperature was near or below 0 ℃, air-conditioner outdoor unit need to defrost.In limited defrosting time, the quantity of heat given up that heat pump air conditioner is depended merely on complete machine itself defrosts, and takes longlyer, and the indoor apparatus of air conditioner heating capacity during this period of time reduces or can't heat at all.Adopt auxiliary electric heater unit to carry out auxiliary heating during more present air-conditioning winter heatings in indoor set, but its heating effect is not good, efficient is also lower.And by in off-premises station, directly refrigerant being heated, can improve the efficient of auxiliary heating, but existing common fluid heater exists the defectives such as complex structure, volume is large, sealing is poor, the efficiency of heating surface is low, can't adapt to the instructions for use of high-performance air-conditioner machine refrigerant auxiliary heating.
Summary of the invention
Technical problem to be solved by this invention is, provides that a kind of compact conformation, the efficiency of heating surface are high, good airproof performance, reliable air-conditioner outdoor unit refrigerant electric heating device.
Air-conditioner outdoor unit refrigerant electric heating device of the present invention includes a columned housing, and the sealing of housing front end has the refrigerant entrance that is connected with refrigerant pipe on the housing leading portion sidewall, and refrigerant pipe is connected with the housing welded seal, and the housing rear end arranges refrigerant exit; The housing center is provided with electrothermal tube, and the electrode of electrothermal tube is drawn by the housing front end; Electrothermal tube comprises shell and is positioned at heating wire and the heat conductive insulating medium of shell; Be provided with spiral helicine radiating fin on the outer wall of shell, the internal diameter matched in clearance of the outer rim of described radiating fin and housing makes and forms spiral helicine refrigerant passage between shell and the housing.
Described housing front end is provided with the closed-loop of an annular, the outer wall of closed-loop and inner walls welded seal, the shell outer wall welded seal of the inwall of closed-loop and electrothermal tube; The front end face of described sealing ring is provided with the groove of annular, and the rear end face of a sealed silicon gum cover is stuck in the annular groove of sealing ring by annular projection; The front end face of electrothermal tube is pressed on the rear end face of sealed silicon gum cover; Sealed silicon gum cover middle part has the fairlead that the electrode for electrothermal tube passes, and the sealed silicon gum cover front end face around in the fairlead outer end is provided with cavity, and after the electrode of electrothermal tube was drawn by fairlead, cavity was filled by silica gel sealing.
The heating wire of described electrothermal tube and heat conductive insulating medium are positioned at the stage casing of shell inner chamber, are provided with temperature limiter and fuse-link at the back segment of shell inner chamber.
The shell front end of described electrothermal tube is provided with the magnesia fixed block that electrode is positioned and is used for sealing the end socket of shell front end, and the electrode that is connected with heating wire passes magnesia fixed block and end socket.
Described housing is installed in the off-premises station of heat pump air conditioner.
Advantage applies of the present invention exists:
1, by spiral helicine radiating fin is set at electrothermal tube, not only can improve the efficient of heat exchange, utilize simultaneously the helical form radiating fin in housing, to form the helical form refrigerant passage, can under less volume, obtain long refrigerant flow path, thereby further improve heat exchanger effectiveness and dwindle overall volume;
2, temperature limiter and fuse-link are arranged in the shell of electrothermal tube, make overall volume compacter;
3, adopt the housing front end by welding and the dual-seal of sealed silicon gum cover, improved the sealing effectiveness of its waterproof and dustproof, guaranteed reliability of operation.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the embodiment of the invention;
Fig. 2 is the electrothermal tube structure schematic diagram of the embodiment of the invention.
The specific embodiment
As shown in Figure 1, this air-conditioner outdoor unit refrigerant electric heating device includes a columned housing 1 that is installed in the heat pump air conditioner off-premises station, the sealing of housing 1 front end has the refrigerant entrance 11 that is connected with refrigerant pipe 2 on the housing leading portion sidewall, the housing rear end arranges refrigerant exit 12; The housing center is provided with electrothermal tube 3, and the electrode 35 of electrothermal tube is drawn by the housing front end; Electrothermal tube 3 comprises shell 31 and is positioned at heating wire 32 and the heat conductive insulating medium 33 of shell; Be provided with spiral helicine radiating fin 34 on the outer wall of shell, the internal diameter matched in clearance of the outer rim of described radiating fin 34 and housing 1 makes and forms spiral helicine refrigerant passage 4 between shell 31 and the housing 1.Housing 1 front end is provided with the closed-loop 5 of an annular, the outer wall of closed-loop 5 and housing 1 inwall welded seal, the inwall of closed-loop 5 and the shell of electrothermal tube 31 outer wall welded seals.The rear end face that the front end face of sealing ring 5 is provided with 51, one sealed silicon gum covers 6 of groove of annular is stuck in the annular groove 51 of sealing ring by annular projection 61; The front end face of electrothermal tube 3 is pressed on the rear end face of sealed silicon gum cover; Sealed silicon gum cover 6 middle parts have the fairlead that the electrode 35 for electrothermal tube passes, and the sealed silicon gum cover front end face around in the fairlead outer end is provided with cavity 62, and after the electrode of electrothermal tube was drawn by fairlead, cavity 62 was filled by silica gel sealing.
As shown in Figure 2, the heating wire 32 of electrothermal tube 3 and heat conductive insulating medium 33 are positioned at the stage casing of shell inner chamber, are provided with temperature limiter 36 and fuse-link 37 at the back segment of shell inner chamber, and electrothermal tube is carried out temperature control and overtemperature prote.The shell front end of electrothermal tube 3 is provided with the magnesia fixed block 38 that electrode is positioned and the end socket 39 that is used for sealing the shell front end, and the electrode that is connected with heating wire passes magnesia fixed block and end socket.
Claims (6)
1. air-conditioner outdoor unit refrigerant electric heating device, it is characterized in that: it includes a columned housing (1), the sealing of housing (1) front end, have the refrigerant entrance (11) that is connected with refrigerant pipe (2) on the housing leading portion sidewall, refrigerant pipe is connected with the housing welded seal, and the housing rear end arranges refrigerant exit (12); The housing center is provided with electrothermal tube (3), and the electrode of electrothermal tube (35) is drawn by the housing front end; Electrothermal tube (3) comprises shell (31) and is positioned at heating wire (32) and the heat conductive insulating medium (33) of shell; Be provided with spiral helicine radiating fin (34) on the outer wall of shell, the internal diameter matched in clearance of the outer rim of described radiating fin (34) and housing (1) makes and forms spiral helicine refrigerant passage (4) between shell (31) and the housing (1).
2. air-conditioner outdoor unit refrigerant electric heating device according to claim 1, it is characterized in that: housing (1) front end is provided with the closed-loop (5) of an annular, the outer wall of closed-loop (5) and housing (1) inwall welded seal, shell (31) the outer wall welded seal of the inwall of closed-loop (5) and electrothermal tube.
3. air-conditioner outdoor unit refrigerant electric heating device according to claim 2, it is characterized in that: the front end face of sealing ring (5) is provided with the groove (51) of annular, and the rear end face of a sealed silicon gum cover (6) is stuck in the annular groove (51) of sealing ring by annular projection (61); The front end face of electrothermal tube (3) is pressed on the rear end face of sealed silicon gum cover; Sealed silicon gum cover (6) middle part has the fairlead that the electrode (35) for electrothermal tube passes, sealed silicon gum cover front end face around in the fairlead outer end is provided with cavity (62), after the electrode of electrothermal tube was drawn by fairlead, cavity (62) was filled by silica gel sealing.
4. described air-conditioner outdoor unit refrigerant electric heating device one of according to claim 1-3, it is characterized in that: the heating wire (32) of electrothermal tube (3) and heat conductive insulating medium (33) are positioned at the stage casing of shell inner chamber, are provided with temperature limiter (36) and fuse-link (37) at the back segment of shell inner chamber.
5. air-conditioner outdoor unit refrigerant electric heating device according to claim 4, it is characterized in that: the shell front end of electrothermal tube (3) is provided with the magnesia fixed block (38) that electrode is positioned and the end socket (39) that is used for sealing the shell front end, and the electrode that is connected with heating wire passes magnesia fixed block and end socket.
6. air-conditioner outdoor unit refrigerant electric heating device according to claim 1, it is characterized in that: housing (1) is installed in the off-premises station of heat pump air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210367807.XA CN102901291B (en) | 2012-09-28 | 2012-09-28 | Refrigerant electric heating device of air conditioner outdoor machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210367807.XA CN102901291B (en) | 2012-09-28 | 2012-09-28 | Refrigerant electric heating device of air conditioner outdoor machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102901291A true CN102901291A (en) | 2013-01-30 |
| CN102901291B CN102901291B (en) | 2015-01-14 |
Family
ID=47573667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210367807.XA Active CN102901291B (en) | 2012-09-28 | 2012-09-28 | Refrigerant electric heating device of air conditioner outdoor machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102901291B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333577A (en) * | 2015-11-23 | 2016-02-17 | 广东美的制冷设备有限公司 | Air conditioner defrosting control method and device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4314401A (en) * | 1979-01-29 | 1982-02-09 | Isamu Saku | Sheathed heating element and sealing of sheathed electric heating element |
| JPH062976A (en) * | 1992-06-22 | 1994-01-11 | Daikin Ind Ltd | Refrigerant heater |
| CN2390370Y (en) * | 1999-09-07 | 2000-08-02 | 扬州市华扬太阳能热水器有限公司 | Electric heater |
| CN1777341A (en) * | 2005-11-23 | 2006-05-24 | 穆壮荣 | Finned tube heater and its production method |
| CN200950669Y (en) * | 2006-09-12 | 2007-09-19 | 浙江沁园水处理科技股份有限公司 | Overflow-type electric heater |
| CN201263219Y (en) * | 2008-09-27 | 2009-06-24 | 镇江市东方制冷空调设备配件有限公司 | Dual protection electric heater |
| CN201314734Y (en) * | 2008-12-03 | 2009-09-23 | 广东美的电器股份有限公司 | Refrigerant electric heating device |
| CN202835968U (en) * | 2012-09-28 | 2013-03-27 | 镇江东方电热科技股份有限公司 | Air conditioning coolant electric heater |
-
2012
- 2012-09-28 CN CN201210367807.XA patent/CN102901291B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4314401A (en) * | 1979-01-29 | 1982-02-09 | Isamu Saku | Sheathed heating element and sealing of sheathed electric heating element |
| JPH062976A (en) * | 1992-06-22 | 1994-01-11 | Daikin Ind Ltd | Refrigerant heater |
| CN2390370Y (en) * | 1999-09-07 | 2000-08-02 | 扬州市华扬太阳能热水器有限公司 | Electric heater |
| CN1777341A (en) * | 2005-11-23 | 2006-05-24 | 穆壮荣 | Finned tube heater and its production method |
| CN200950669Y (en) * | 2006-09-12 | 2007-09-19 | 浙江沁园水处理科技股份有限公司 | Overflow-type electric heater |
| CN201263219Y (en) * | 2008-09-27 | 2009-06-24 | 镇江市东方制冷空调设备配件有限公司 | Dual protection electric heater |
| CN201314734Y (en) * | 2008-12-03 | 2009-09-23 | 广东美的电器股份有限公司 | Refrigerant electric heating device |
| CN202835968U (en) * | 2012-09-28 | 2013-03-27 | 镇江东方电热科技股份有限公司 | Air conditioning coolant electric heater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333577A (en) * | 2015-11-23 | 2016-02-17 | 广东美的制冷设备有限公司 | Air conditioner defrosting control method and device |
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| Publication number | Publication date |
|---|---|
| CN102901291B (en) | 2015-01-14 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20130130 Assignee: Zhenjiang Dongfangshanyuan Electric Heating Co.,Ltd. Assignor: ZHENJIANG DONGFANG ELECTRIC HEATING TECHNOLOGY CO.,LTD. Contract record no.: X2023320000253 Denomination of invention: Air conditioning outdoor unit refrigerant electric heating device Granted publication date: 20150114 License type: Common License Record date: 20231214 |
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| EE01 | Entry into force of recordation of patent licensing contract |