CN1754075A - Defrosting heater and method of manufacturing the same - Google Patents
Defrosting heater and method of manufacturing the same Download PDFInfo
- Publication number
- CN1754075A CN1754075A CN 200480004840 CN200480004840A CN1754075A CN 1754075 A CN1754075 A CN 1754075A CN 200480004840 CN200480004840 CN 200480004840 CN 200480004840 A CN200480004840 A CN 200480004840A CN 1754075 A CN1754075 A CN 1754075A
- Authority
- CN
- China
- Prior art keywords
- glass tube
- defrost heater
- hole
- blocking
- heater
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000010257 thawing Methods 0.000 title abstract description 5
- 239000011521 glass Substances 0.000 claims abstract description 76
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims 2
- 238000002360 preparation method Methods 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 abstract description 20
- 230000001629 suppression Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 8
- 229910001120 nichrome Inorganic materials 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 5
- 239000006059 cover glass Substances 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/44—Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/12—Inflammable refrigerants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
- F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/04—Refrigerators with a horizontal mullion
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
- Resistance Heating (AREA)
Abstract
A defrosting heater capable of removing, by heating, frost adhered to an evaporator in a refrigerating cycle, comprising a glass tube having an opening at the end thereof, a heater wire stored in the glass tube, a plug covering the opening of the glass tube and having a hole communicating the inside and the outside of the glass tube formed therein, a lead connected to the heater wire through the hole in the plug, and a valve installed in the plug and flowing gas in the glass tube to the outside. The temperature of the glass tube is not so raised in the defrosting heater. Accordingly, even if refrigerant in the refrigerating cycle is inflammable, the glass tube is not heated to the ignition temperature of the refrigerant or higher. As a result, there is no need to consider the suppression of the rise of the temperature.
Description
Technical field
The present invention relates to be used for the manufacture method of Defrost heater and these heaters cooling device, that remove the frost on the cooler that is attached to the freeze cycle that is packaged with inflammable refrigerant such as refrigerator.
Background technology
The Defrost heater of the frost on the cooler that is used to remove the freeze cycle that is attached to refrigerator of the prior art discloses in Japanese patent laid-open 8-54172 communique to some extent.
Fig. 8 is the sectional view of major part of the refrigerator that is built-in with Defrost heater 15 1 of prior art.Refrigerator 1 comprises: refrigerating chamber 2, refrigerating chamber 3, refrigerating chamber door 4, refrigerating-chamber door 5, separate refrigerating chamber 2 and refrigerating chamber 3 next door 6, suck the air in the refrigerating chamber 2 suction inlet 7, suck the air in the refrigerating chamber 3 suction inlet 8, discharge cold air outlet 9, evaporimeter 10, make the fan 11 of circulating cold air and separate evaporimeter 10 and the next door 12 of refrigerating chamber 2.Be provided with below the evaporimeter 10: be covered with by glass tube the nichrome wire of coiled type Defrost heater 15, be used to prevent the last shield 16 and the metal base plate 17 of the evaporation sound that when the water that produces because of defrosting directly drips and contacts Defrost heater 15, produces.The water of being collected by bucket 13 is discharged from by discharge outlet 14.
Action to above-mentioned Defrost heater 15 describes.Evaporimeter 10 is cooled by the refrigerant that circulates in wherein, thus cooling refrigerating chamber 2 and refrigerating chamber 3.Fan 11 is sent to cooling chamber (scheming not shown) from the air that suction inlet 7 and suction inlet 8 will heat up refrigerating chamber 2 and refrigerating chamber 3.This air carries out heat exchange by evaporimeter 10 and is cooled, and is sent in the refrigerating chamber 2 from outlet 9 by fan 11.This air is fed to refrigerating chamber 3 from refrigerating chamber 2 by the mouth (scheming not shown) that is communicated with refrigerating chamber 3.
The air that carries out heat exchange by evaporimeter 10, be the hot room outer air that door 5 the switching because of the door 4 of refrigerating chamber 2 and refrigerating chamber 3 enters, or by containing also moisture evaporated in the food that is stored in refrigerating chamber 2 and the refrigerating chamber 3 by the air of high humilityization.Therefore, airborne moisture becomes frost and attached to than on the low evaporimeter 10 of this air themperature, hinders the heat transmission of carrying out between evaporimeter 10 and the air along with the increase of this frost amount.And the frost that adheres to becomes the ventilation obstruction and the air capacity by evaporimeter 10 is tailed off, and therefore, the percent of pass of heat descends, and the situation of cooling deficiency takes place.
Therefore, before becoming the cooling deficiency, make the nichrome wire energising of Defrost heater 15.When nichrome wire begins to switch on, from nichrome alignment evaporimeter 10 and its circumferential component radiate heat.At this moment, be radiated the heat of base plate 17, its part from base plate 17 reflex to nichrome wire and other parts to the reflection of evaporimeter 10 and its circumferential component.Make near the frosts that are attached to evaporimeter 10, bucket 13 and the discharge outlet 14 be melted into water towards the heat of evaporimeter 10 and circumferential component reflection.
The water of Chan Shenging like this, its part directly fall into bucket 13, and other parts are avoided Defrost heater 15 by last shield 16 and fall into bucket 13, then, discharge from discharge outlet 14.
In the Defrost heater 15 of above-mentioned prior art, the surface of nichrome wire does not only have very high temperature even cover the glass tube surface of nichrome wire yet.Because base plate 17 is near Defrost heater 15 and will return Defrost heater 15 from a part of reflect heat of Defrost heater 15 radiation, so the temperature of glass tube also can further raise.
Refrigerant might from evaporimeter 10 or with refrigerator in the pipe arrangement of connected component place configuration leak.When refrigerant has combustibility, must make the temperature of the glass tube of Defrost heater 15 be no more than the ignition temperature of refrigerant.
Summary of the invention
Defrost heater is by heating the frost of removing on the evaporimeter that is attached to freeze cycle.This Defrost heater comprises: there is the glass tube of opening the end, be accommodated in the heater wire in the glass tube, the opening of cover glass pipe also is formed with the blocking that is communicated with inner with the outside hole of glass tube, the lead that hole by blocking is connected with heater wire and be arranged at valve on the blocking, that the glass tube gas inside is discharged to the outside.
The temperature of the glass tube of this Defrost heater can excessively not rise.
Description of drawings
Fig. 1 is the sectional view of major part of the Defrost heater of embodiment of the present invention.
Fig. 2 is the refrigerator refrigerating system that the Defrost heater of present embodiment is used in expression.
Fig. 3 is the exploded view of the Defrost heater of present embodiment.
Fig. 4 is another Defrost heater of expression present embodiment.
Fig. 5 is the another Defrost heater of expression present embodiment.
Fig. 6 is the sectional view of the major part of Defrost heater shown in Figure 5.
Fig. 7 is a Defrost heater again of expression present embodiment.
Fig. 8 is the sectional view of refrigerator with Defrost heater of prior art.
The specific embodiment
Fig. 1 is the sectional view of major part of the Defrost heater 20 of first embodiment of the invention.Defrost heater 20 is built-in with the heater wire 21 of resistance wire being made coiled type.Near the link 21a that has linearity the two ends of heater wire 21.The external diameter that covers the glass tube 23 of heater wire 21 is about 10.5mm, has the drum of both ends open.The external diameter of the glass tube 24 of cover glass pipe 23 is about 20mm, has the drum of both ends open.Heater wire 21 is connected with lead 26 via the sleeve pipe 28 of electric conductivity.The blocking 22 cover glass pipes 23 of silicone rubber system and the openend of glass tube 24.Lead 26 is connected with heater wire 21 by being arranged on the hole 22a on the blocking 22.Blocking 22 be provided with from the inner space 23a of glass tube 23 and by space 24a that glass tube 23 and glass tube 24 surrounded and with the hole 22b of the external communications of blocking 22.The smallest cross-section area of hole 22b is below 7.1 square millimeters.The valve 25 of rubber system is installed on the tube 27 in the mode of tube 27 the peristome 27A that the end is arranged that clogs 22b place, hole.Valve 25 moves as the check-valves of only opening to a direction with the authorized pressure difference.
Because blocking 22 is the simple structures that clogged the hole 22b that predesignates by valve 25, so the simple shape of blocking 22, cost are low.
Fig. 2 is the refrigerator refrigerating system that the Defrost heater 20 of present embodiment is used in expression.In the freeze cycle that constitutes by compressor 60, condenser 61, the mechanism of decompressor 62 and evaporimeter 10, be packaged with inflammable refrigerant, and make it circulation in compressor 60, condenser 61, the mechanism of decompressor 62 and evaporimeter 10.Freeze cycle makes cooling device for example be arranged at the cooling chamber cooling of refrigerator.
Action to the Defrost heater 20 of above-mentioned formation describes.The refrigerant that is sent by the running by compressor 60 cools off evaporimeter 10.Make the evaporimeter 10 of air in the refrigerator by the fan 11 that moves simultaneously with compressor 60, then, will in refrigerator, discharge with the cold air that evaporimeter 10 has carried out heat exchange by being cooled.Stop behind the compressor 60 process running certain hours.When stopping, heater wire 21 is switched on by lead 26, and Defrost heater 20 begins heating.
Heating by heater wire 21, the radiate heat of a part directly sees through to the outside, other parts are then transmitted to glass tube 23 and glass tube 24, the surface temperature that makes glass tube 24 rises to deficiency so that inflammable refrigerant temperature on fire and to outside heat release, thereby safely the circumferential component of evaporimeter is defrosted.
At this moment, in the inner space of glass tube 23 23a and the space 24a that surrounded by glass tube 23 and glass tube 24, owing to the rising of temperature is expanded its gas inside.But because valve 25 is out of shape by the air that expands, and dilated air discharges to the outside by hole 22b and from valve 25, therefore, the pressure among space 23a and the 24a risen, thereby can not make glass tube 23 and 24 breakages, and blocking 22 is opened.
When stopping the energising of heater wire 21 and once again begin to cool down, by the temperature inside that reduce glass tube 23 and glass tube 24 reduce pressure thereafter.Because the inside of Defrost heater 20 remains on decompression state, so valve 25 hinders the inflow of extraneous gas.Therefore, though inflammable refrigerant be present in Defrost heater 20 around, inflammable refrigerant also be difficult to flow into the inside of Defrost heater 20, so the refrigerant possibility of fire is very low.
If inflammable refrigerant flows into glass tube inside,, become authorized pressure in the inside of glass tube when above even on fire because of heater wire 21, valve 25 can be opened slightly, prevent the excessive rising of pressure, valve 25 cuts off flame, thereby can prevent that flame is to external communication.
In addition, the smallest cross-section area of hole 22b is below 7.1 square millimeters, and is very thin, and flame can not pass through its inside.Therefore, even valve 25 comes off, because flame can not pass through hole 22b, so flame can not be to external communication.
Valve 25 is installed on the blocking 22 via the tube 27 that the end is arranged.Valve 25 is rubber systems, when on the blocking 22 that it is directly installed on rubber system, is difficult to valve 25 is positioned, and the opening pressure that occurs valve 25 sometimes produces the situation of deviation.And valve 25 is difficult to directly be fixed on the blocking 22.Because valve 25 is installed in by than on hard material constituted the tube 27 of rubber, therefore, make its opening pressure stable, tube 27 can directly be fixed on the blocking 22 simply.In tube 27,, therefore can set only pressure according to the caloric value of Defrost heater 20 and the internal capacity of glass tube 23,24 etc. because the size of mounting portion that can be by changing valve 25 changes the opening pressure of valve 25.
Fig. 3 is the exploded view of Defrost heater 20.The diameter D1 of the hole 22a of blocking 22 is littler than the diameter D2 of lead 26.Therefore, blocking 22 makes lead 26 remain on fastening state, does not make extraneous air and refrigerant flow into the inside of Defrost heater 20 by hole 22a.
Fig. 4 is another Defrost heater 120 of expression present embodiment.In Defrost heater shown in Figure 1 20, though the outside on the surface of glass tube 24 expose, also can be as shown in Figure 4, by the outer side covers of metal pipe 50 with glass tube 24.Metal pipe 50 becomes outer cover, and anti-sealing directly drenches on glass tube 24.
Fig. 5 is another Defrost heater 220 of expression present embodiment.Defrost heater 20 shown in Figure 1 has the duplex that utilizes glass tube 23,24, and Defrost heater 220 does not dispose glass tube 24, and glass tube 23 exposes.As long as surface temperature is lower than the burning-point of inflammable refrigerant,, also can obtain same effect even a glass tube 23 is only arranged.
Fig. 6 is the sectional view of the major part of Defrost heater 220 shown in Figure 5.The blocking 122 cover glass pipes 23 of silicone rubber system open-ended.Lead 26 is connected with heater wire 21 by being arranged on the hole 122a on the blocking 122.Blocking 122 is provided with from the hole 122b of the exterior of the inner space 23a of glass tube 23 and blocking 122.The smallest cross-section area of hole 122b is below 7.1 square millimeters.The valve 25 of rubber system is installed on the tube 27 in the mode of tube 27 the peristome 27A that the end is arranged that clogs 122b place, hole.Valve 25 is as only moving to the check-valves of a direction Open valve with the certain pressure difference.
Fig. 7 is another Defrost heater 320 of expression present embodiment.In Defrost heater shown in Figure 6 220, though the outside on the surface of glass tube 23 expose, also can be as shown in Figure 7, by the outer side covers of metal pipe 50 with glass tube 23.Metal pipe 50 becomes outer cover, and anti-sealing directly drenches on glass tube 23.
And, in Fig. 4 and Fig. 7,, then will increase radiation heat, thereby improve the defrost performance of defrosting heating tube 120,320 from metal pipe 50 if it is painted that the surface of metal pipe 50 is for example carried out with black.And, owing to can suppress the rising of the surface temperature of Defrost heater 120,320, thereby, for so that surface temperature remains on below the ignition temperature of inflammable refrigerant to the metal tubulation 50 of purpose is effective.
And, in embodiment, being illustrated as the machine that uses Defrost heater 20 with refrigerator, this machine can use Defrost heater 120,220,320 equally.In addition, this machine is not limited to refrigerator, can be widely used in having the freezer of evaporimeter, for example has the showcase and the automatic vending machine of the freeze cycle that is packaged with inflammable refrigerant.
Industrial utilization: Defrost heater is used for heating and removes being attached to the freeze cycle cooler On frost. This Defrost heater has the glass tube of taking in heater wire, and the temperature of glass tube is several Rise. Therefore, even the refrigerant in the freeze cycle is flammable, glass tube can not become yet Must than the ignition temperature height of refrigerant, therefore needn't consider to suppress the rising of temperature.
Claims (18)
1. a Defrost heater is a Defrost heater of removing the frost on the evaporimeter that is attached to freeze cycle by heating, it is characterized in that, comprising:
First glass tube that has opening in the end;
Be accommodated in the heater wire in described first glass tube;
Cover the blocking described opening and that be formed with the first inside and outside hole that is communicated with described first glass tube of described first glass tube;
The lead that is connected with described heater wire by described first hole of described blocking; With
Be arranged on the valve that described internal gas on the described blocking, that make described first glass tube is discharged to the outside.
2. Defrost heater as claimed in claim 1 is characterized in that:
Described valve reaches authorized pressure when above and produce distortion in the inside of described first glass tube.
3. Defrost heater as claimed in claim 1 is characterized in that:
Described blocking is provided with second hole of the external communications of the described inside that makes described first glass tube and described first glass tube,
Described valve stops up described second hole.
4. Defrost heater as claimed in claim 3 is characterized in that:
Described second hole has the cross-sectional area of the size that flame can not propagate.
5. Defrost heater as claimed in claim 3 is characterized in that:
Also comprise being inserted in tube in described second hole, that have peristome,
Described valve stops up the described peristome of described tube.
6. Defrost heater as claimed in claim 1 is characterized in that:
Described valve is the check-valves of only discharging gas from the described inside of described first glass tube.
7. Defrost heater as claimed in claim 1 is characterized in that:
The diameter in described first hole of described blocking is littler than the diameter of described lead.
8. Defrost heater as claimed in claim 1 is characterized in that:
Also comprise the metal pipe of taking in described first glass tube.
9. Defrost heater as claimed in claim 8 is characterized in that:
The surface of described metal pipe is colored.
10. Defrost heater as claimed in claim 1 is characterized in that:
Also be included in inside take in described first glass tube, the end has second glass tube of opening,
Described blocking covers the described opening of described first glass tube and the described opening of described second glass tube,
Described valve makes the described gas of described inside of described first glass tube and the gas in the space between described first glass tube and described second glass tube discharge to the outside.
11. Defrost heater as claimed in claim 10 is characterized in that:
Described valve reaches authorized pressure when above and produce distortion in the inside of described first glass tube and described second glass tube.
12. Defrost heater as claimed in claim 10 is characterized in that:
Described blocking is provided with second hole of the external communications of the described inside that makes described first glass tube and described space between described first glass tube and described second glass tube and described second glass tube,
Described valve stops up described second hole.
13. Defrost heater as claimed in claim 12 is characterized in that:
Described second hole has the cross-sectional area of the size that flame can not propagate therein.
14. Defrost heater as claimed in claim 12 is characterized in that:
Also comprise being inserted in tube in described second hole, that have peristome,
Described valve stops up the described peristome of described tube.
15. Defrost heater as claimed in claim 10 is characterized in that:
Described valve is only from the described inside of described first glass tube and the described inner check-valves of discharging gas of described second glass tube.
16. Defrost heater as claimed in claim 10 is characterized in that:
Also comprise the metal pipe of taking in described second glass tube.
17. Defrost heater as claimed in claim 16 is characterized in that:
The surface of described metal pipe is colored.
18. the manufacture method of a Defrost heater is characterized in that, comprising:
Preparation have in the end opening glass tube, form porose blocking, than the big lead of the diameter in described hole and the step of heater wire;
Cover the step of the described opening of described glass tube by described blocking;
Sleeve pipe is installed in step on the described lead;
Make the described sleeve pipe that is installed on the described lead step by the described hole of described blocking; With
Described heater wire is connected step on the described sleeve pipe.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003042870A JP3580307B2 (en) | 2003-02-20 | 2003-02-20 | Defrost heater |
| JP042870/2003 | 2003-02-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1754075A true CN1754075A (en) | 2006-03-29 |
| CN100416195C CN100416195C (en) | 2008-09-03 |
Family
ID=32905378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200480004840XA Expired - Lifetime CN100416195C (en) | 2003-02-20 | 2004-02-19 | Defrosting heater and method of manufacturing the same |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3580307B2 (en) |
| CN (1) | CN100416195C (en) |
| TW (1) | TWI254784B (en) |
| WO (1) | WO2004074751A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103974473A (en) * | 2013-02-01 | 2014-08-06 | 优尼文株式会社 | Multiplex heating pipe using conductive heating wire |
| CN108278836A (en) * | 2017-12-19 | 2018-07-13 | 青岛海尔股份有限公司 | Refrigerator and heating tube for refrigerator |
| CN108662837A (en) * | 2018-03-27 | 2018-10-16 | 苏州林信源自动化科技有限公司 | A kind of quick defrosting apparatus on refrigerator |
| CN114761747A (en) * | 2019-11-11 | 2022-07-15 | 青岛海尔电冰箱有限公司 | Defrosting device and refrigerator comprising same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4484752B2 (en) * | 2005-04-22 | 2010-06-16 | シャープ株式会社 | refrigerator |
| KR101515607B1 (en) | 2013-01-03 | 2015-04-27 | 주식회사 유니웜 | Heating pipe using conductive heating wire |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4930348Y1 (en) * | 1970-10-22 | 1974-08-16 | ||
| JPS5020331Y1 (en) * | 1970-10-23 | 1975-06-20 | ||
| JPS63281181A (en) * | 1987-05-14 | 1988-11-17 | Canon Inc | Fixing device |
| JP2902881B2 (en) * | 1992-11-13 | 1999-06-07 | 三洋電機株式会社 | Defrost heater |
| JPH11273846A (en) * | 1998-03-25 | 1999-10-08 | Micron Denki Kk | Pipe heater having protective cover |
| JP3507724B2 (en) * | 1999-03-18 | 2004-03-15 | 松下冷機株式会社 | refrigerator |
| JP3507736B2 (en) * | 1999-10-29 | 2004-03-15 | 松下冷機株式会社 | refrigerator |
| JP2002267331A (en) * | 2001-03-13 | 2002-09-18 | Matsushita Refrig Co Ltd | Refrigerator |
-
2003
- 2003-02-20 JP JP2003042870A patent/JP3580307B2/en not_active Expired - Lifetime
-
2004
- 2004-02-18 TW TW93103977A patent/TWI254784B/en not_active IP Right Cessation
- 2004-02-19 CN CNB200480004840XA patent/CN100416195C/en not_active Expired - Lifetime
- 2004-02-19 WO PCT/JP2004/001908 patent/WO2004074751A1/en active Application Filing
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103974473A (en) * | 2013-02-01 | 2014-08-06 | 优尼文株式会社 | Multiplex heating pipe using conductive heating wire |
| CN103974473B (en) * | 2013-02-01 | 2016-05-11 | 优尼文株式会社 | Use the multi source heating pipe of electric conductivity heater wire |
| CN108278836A (en) * | 2017-12-19 | 2018-07-13 | 青岛海尔股份有限公司 | Refrigerator and heating tube for refrigerator |
| CN108278836B (en) * | 2017-12-19 | 2022-04-29 | 海尔智家股份有限公司 | Refrigerator and heating pipe for refrigerator |
| CN108662837A (en) * | 2018-03-27 | 2018-10-16 | 苏州林信源自动化科技有限公司 | A kind of quick defrosting apparatus on refrigerator |
| CN114761747A (en) * | 2019-11-11 | 2022-07-15 | 青岛海尔电冰箱有限公司 | Defrosting device and refrigerator comprising same |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200417714A (en) | 2004-09-16 |
| TWI254784B (en) | 2006-05-11 |
| JP3580307B2 (en) | 2004-10-20 |
| JP2004263889A (en) | 2004-09-24 |
| CN100416195C (en) | 2008-09-03 |
| WO2004074751A1 (en) | 2004-09-02 |
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Granted publication date: 20080903 |