CN110567218A - Heater for refrigerator - Google Patents
Heater for refrigerator Download PDFInfo
- Publication number
- CN110567218A CN110567218A CN201910779447.6A CN201910779447A CN110567218A CN 110567218 A CN110567218 A CN 110567218A CN 201910779447 A CN201910779447 A CN 201910779447A CN 110567218 A CN110567218 A CN 110567218A
- Authority
- CN
- China
- Prior art keywords
- sealing plug
- cavity
- heater
- pipe
- inner pipe
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 73
- 238000005485 electric heating Methods 0.000 claims abstract description 8
- 238000009423 ventilation Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims 2
- 238000003780 insertion Methods 0.000 claims 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- 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
-
- 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
- H05B3/02—Details
-
- 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
- H05B3/02—Details
- H05B3/04—Waterproof or air-tight seals for heaters
-
- 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
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
-
- 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
Abstract
The invention provides a heater for a refrigerator, which comprises an inner pipe, an outer pipe, a first sealing plug, a second sealing plug and an electric heating wire, wherein the outer pipe is sleeved outside the inner pipe; the first sealing plug and the second sealing plug are respectively arranged at two ends of the outer pipe and are hermetically connected with the outer pipe, two ends of the inner pipe are respectively abutted against the first sealing plug and the second sealing plug, the first sealing plug is provided with a first air duct for communicating the first cavity with the second cavity, and the second sealing plug is provided with a second air duct for communicating the first cavity with the second cavity; one end of the electric heating wire penetrates through the first sealing plug, extends into the outer pipe, is spirally wound on the inner pipe, and then penetrates through the second sealing plug and extends out of the inner pipe. According to the invention, the first cavity is arranged in the inner pipe, the second cavity is arranged in the outer pipe, and the first ventilation channel and the second ventilation channel of the first cavity and the second cavity are respectively arranged in the first sealing plug and the second sealing plug, so that the temperature of the air flow channel in the heater is uniform.
Description
Technical Field
The invention relates to the technical field of heaters, in particular to a heater for a refrigerator.
Background
When the evaporator of the refrigerator or the cold storage warehouse works in a refrigerating mode, a layer of frost is condensed on the surface of the evaporator, evaporation and heat absorption are affected when the frost is thick, defrosting is needed, and most of evaporators of the refrigerator or the cold storage warehouse with large refrigerating capacity are defrosted by electric heaters. The stainless steel pipe of the existing electric heater has good heat-conducting property, and can rapidly transmit heat generated by the heating wire to the outside, however, the heat generated by the heating wire has certain temperature difference within the length range, so that the temperature on the stainless steel pipe also has temperature difference, when frost on the evaporator meets different heating temperatures, the evaporator is affected by the temperature difference, and the evaporator is damaged due to internal temperature stress.
Disclosure of Invention
the invention provides a heater for a refrigerator based on technical problems in the background technology.
The invention provides a heater for a refrigerator, which comprises an inner pipe, an outer pipe, a first sealing plug, a second sealing plug and an electric heating wire, wherein the outer pipe is sleeved outside the inner pipe; the first sealing plug and the second sealing plug are respectively arranged at two ends of the outer pipe and are hermetically connected with the outer pipe, two ends of the inner pipe are respectively abutted against the first sealing plug and the second sealing plug, the first sealing plug is provided with a first air duct for communicating the first cavity with the second cavity, and the second sealing plug is provided with a second air duct for communicating the first cavity with the second cavity; one end of the electric heating wire penetrates through the first sealing plug, extends into the outer pipe, is spirally wound on the inner pipe, and then penetrates through the second sealing plug and extends out of the inner pipe.
Preferably, one end of the first cavity close to the first sealing plug is provided with a first fan which blows airflow into the first air duct.
Preferably, one end of the first cavity close to the second sealing plug is provided with a second fan which blows airflow into the hollow cavity.
Preferably, the heating wire is spirally wound at equal intervals outside the inner tube.
Preferably, the first sealing plug and the second sealing plug are respectively provided with a first sealing groove and a second sealing groove for inserting the inner pipe.
Preferably, the second cavity is a spiral cavity, and the spiral axis of the second cavity coincides with the central axis of the inner tube.
Preferably, the first sealing plug is matched with the outer pipe and the inner pipe in an inserting mode.
Preferably, the second sealing plug is matched with the outer pipe and the inner pipe in an inserting mode.
According to the heater for the refrigerator, the heating wire is arranged between the inner pipe and the outer pipe and is spirally wound on the outer wall of the inner pipe, so that heat can be transferred outwards more quickly, and the heating performance is improved; the inner pipe is internally provided with a first cavity, the outer pipe is provided with a second cavity, and a first ventilation channel and a second ventilation channel of the first cavity and the second cavity are respectively arranged in the first sealing plug and the second sealing plug, so that an airflow channel inside the heater is uniform in temperature, and the temperature difference is avoided.
Drawings
Fig. 1 is a schematic structural view of a heater for a refrigerator according to the present invention;
Fig. 2 is a schematic view of a partial structure of a heater for a refrigerator according to the present invention.
Detailed Description
Referring to fig. 1 and 2, the present invention provides a heater for a refrigerator, including an inner tube 1, an outer tube 2, a first sealing plug 3, a second sealing plug 4 and an electric heating wire 5, wherein:
The outer tube 2 suit is outside inner tube 1, and inner tube 1 is equipped with first cavity 6, and outer tube 2 is equipped with second cavity 7.
First sealing plug 3, second sealing plug 4 sets up respectively at 2 both ends of outer tube and all with 2 sealing connection of outer tube, 1 both ends of inner tube respectively with first sealing plug 3, second sealing plug 4 supports and leans on, first sealing plug 3 is equipped with the first ventiduct 8 of the first cavity 6 of intercommunication and second cavity 7, second sealing plug 4 is equipped with the first cavity 6 of intercommunication, the second ventiduct 9 of second cavity 7, first sealing plug 3 and outer tube 2, the cooperation of all pegging graft of inner tube 1, second sealing plug 4 and outer tube 2, the cooperation of all pegging graft of inner tube 1.
One end of the electric heating wire 5 penetrates through the first sealing plug 3, extends into the outer pipe 2, is spirally wound on the inner pipe 1 at equal intervals, and then penetrates through the second sealing plug 4 to extend out of the inner pipe.
According to the invention, the heating wire 5 is arranged between the inner pipe 1 and the outer pipe 2 and is spirally wound on the outer wall of the inner pipe 1, so that heat can be quickly transferred outwards, and the heating performance is improved; set up first cavity 6 in the inner tube 1, outer tube 2 sets up second cavity 7 to set up first ventiduct 8, the second ventiduct 9 of first cavity 6 and second cavity 7 respectively in first sealing plug 3, second sealing plug 4, make the inside air current runner of heater, make the temperature even, avoid appearing the difference in temperature.
In this embodiment, in order to improve the heat transfer uniformity of the refrigerator heater, a first blower 10 for blowing air flow into the first air duct 8 is disposed at one end of the first cavity 6 close to the first sealing plug 3. The first cavity 6 is provided with a second fan 11 which blows air flow into the cavity at one end close to the second sealing plug 4. Because the winding of heater strip 5 is outside at inner tube 1, the temperature is higher in the inner tube 1, and through setting up first fan 10, second fan 11, first fan 10, the inside air current of second fan 11 start-up guide flow for the inside temperature of heater is even.
In this embodiment, in order to improve the sealing performance, a first sealing groove and a second sealing groove into which the inner tube 1 is inserted are respectively disposed inside the first sealing plug 3 and the second sealing plug 4.
In this embodiment, in order to improve the heating performance of the refrigerator heater, the second cavity 7 is preferably a spiral cavity, and the spiral axis of the second cavity 7 coincides with the central axis of the inner tube 1.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. a heater for a refrigerator is characterized by comprising an inner pipe (1), an outer pipe (2), a first sealing plug (3), a second sealing plug (4) and an electric heating wire (5), wherein the outer pipe (2) is sleeved outside the inner pipe (1), the inner pipe (1) is provided with a first cavity (6), and the outer pipe (2) is provided with a second cavity (7); the first sealing plug (3) and the second sealing plug (4) are respectively arranged at two ends of the outer pipe (2) and are both in sealing connection with the outer pipe (2), two ends of the inner pipe (1) are respectively abutted against the first sealing plug (3) and the second sealing plug (4), the first sealing plug (3) is provided with a first ventilation channel (8) for communicating the first cavity (6) with the second cavity (7), and the second sealing plug (4) is provided with a second ventilation channel (9) for communicating the first cavity (6) with the second cavity (7); one end of the electric heating wire (5) penetrates through the first sealing plug (3) to stretch into the outer pipe (2), spirally winds the inner pipe (1) and then penetrates through the second sealing plug (4) to stretch out of the inner pipe.
2. A heater for a refrigerator according to claim 1, wherein the first cavity (6) is provided with a first fan (10) at an end thereof adjacent to the first sealing plug (3) for blowing air into the first air path (8).
3. A heater for a refrigerator according to claim 2, characterised in that the first cavity (6) is provided with a second fan (11) at an end thereof adjacent the second sealing plug (4) for blowing air into the cavity.
4. The heater for a refrigerator according to any one of claims 1 to 3, wherein the heating wire (5) is spirally wound at equal intervals outside the inner tube (1).
5. A heater for a refrigerator according to any one of claims 1 to 3, wherein a first sealing groove and a second sealing groove for inserting the inner tube (1) are formed inside the first sealing plug (3) and the second sealing plug (4), respectively.
6. A heater for a refrigerator according to any one of claims 1-3, wherein the second cavity (7) is a spiral cavity, and the spiral axis of the second cavity (7) coincides with the central axis of the inner tube (1).
7. A heater for a refrigerator according to any one of claims 1-3, wherein the first sealing plug (3) is fitted in an insertion manner to both the outer tube (2) and the inner tube (1).
8. A heater for a refrigerator according to any one of claims 1-3, wherein the second sealing plug (4) is fitted in an insertion manner to both the outer tube (2) and the inner tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910779447.6A CN110567218A (en) | 2019-08-22 | 2019-08-22 | Heater for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910779447.6A CN110567218A (en) | 2019-08-22 | 2019-08-22 | Heater for refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110567218A true CN110567218A (en) | 2019-12-13 |
Family
ID=68774304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910779447.6A Pending CN110567218A (en) | 2019-08-22 | 2019-08-22 | Heater for refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110567218A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1947632A (en) * | 2005-10-14 | 2007-04-18 | 巴西利亚公司 | Hot water and/or steam generator |
| WO2009043851A2 (en) * | 2007-10-04 | 2009-04-09 | Nestec S.A. | Integrated heater for a beverage preparation device |
| CN104883939A (en) * | 2012-12-12 | 2015-09-02 | 地中海咖啡股份有限公司 | Boiler for a machine for preparing beverages |
| CN105066425A (en) * | 2015-07-16 | 2015-11-18 | 周通 | Fluid heating and sterilization immediate synchronization supply device |
| CN105716269A (en) * | 2016-02-05 | 2016-06-29 | 赵伟 | Liquid heating device |
| CN106231704A (en) * | 2016-08-19 | 2016-12-14 | 安徽省宁国市天成电气有限公司 | A kind of air heating apparatus |
| CN208273278U (en) * | 2018-04-27 | 2018-12-21 | 藤泽电工（上海）有限公司 | A kind of refrigerator heater |
| CN210602434U (en) * | 2019-08-22 | 2020-05-22 | 安徽省宁国市天成电机有限公司 | Heater for refrigerator |
-
2019
- 2019-08-22 CN CN201910779447.6A patent/CN110567218A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1947632A (en) * | 2005-10-14 | 2007-04-18 | 巴西利亚公司 | Hot water and/or steam generator |
| WO2009043851A2 (en) * | 2007-10-04 | 2009-04-09 | Nestec S.A. | Integrated heater for a beverage preparation device |
| CN104883939A (en) * | 2012-12-12 | 2015-09-02 | 地中海咖啡股份有限公司 | Boiler for a machine for preparing beverages |
| CN105066425A (en) * | 2015-07-16 | 2015-11-18 | 周通 | Fluid heating and sterilization immediate synchronization supply device |
| CN105716269A (en) * | 2016-02-05 | 2016-06-29 | 赵伟 | Liquid heating device |
| CN106231704A (en) * | 2016-08-19 | 2016-12-14 | 安徽省宁国市天成电气有限公司 | A kind of air heating apparatus |
| CN208273278U (en) * | 2018-04-27 | 2018-12-21 | 藤泽电工（上海）有限公司 | A kind of refrigerator heater |
| CN210602434U (en) * | 2019-08-22 | 2020-05-22 | 安徽省宁国市天成电机有限公司 | Heater for refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |