CN217764078U - Defrosting heater of forced air cooling refrigerator with high-efficient defrosting - Google Patents
Defrosting heater of forced air cooling refrigerator with high-efficient defrosting Download PDFInfo
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- CN217764078U CN217764078U CN202221629049.XU CN202221629049U CN217764078U CN 217764078 U CN217764078 U CN 217764078U CN 202221629049 U CN202221629049 U CN 202221629049U CN 217764078 U CN217764078 U CN 217764078U
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- defrosting
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- aluminum pipe
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Abstract
The utility model discloses an air-cooled refrigerator is with defrosting heater of high-efficient defrosting inlays with fin evaporator and is adorned together, including aluminum pipe heater, steel pipe heater and wire, the aluminum pipe heater includes two parallelly connected together through the wire, and steel pipe heater also includes two parallelly connected together through the wire, and parallelly connected through the wire between above-mentioned two aluminum pipe heaters that connect in parallel good and two steel pipe heaters that connect in parallel good carries out parallelly. The utility model discloses a three parallel winding of 0.42mm diameter nichrome electric heating wire are parallelly connected, and the 304 nonrust steel pipe that satisfies conventional nichrome wire + conventional diameter 6.6mm makes ultralow resistance (being less than 1 omega) high power heating pipe and assembles in fin evaporator lower part, and cooperation low-power aluminum pipe heater inlays the dress in fin evaporator first one, carries out the combination formula and heats. The air-cooled refrigerator can meet the use of high-power heating defrosting under the condition of 12V low pressure. The heating power of 150W under the voltage of 12V reaches the defrosting effect of the heating power of 220V, the voltage and 250W.
Description
The technical field is as follows:
the utility model relates to an air-cooled refrigerator is with defrosting heater of high-efficient defrosting, it belongs to domestic appliance technical field.
Background art:
at present, an evaporator for an air-cooled side-by-side combination refrigerator in the market is in a vertically long and thin shape, frost is seriously formed on an upper fin and a lower fin of the evaporator during refrigeration, and a defrosting heater is generally 220V in voltage and has power of about 200W for automatic defrosting. The resistance of the heating pipe is more than 200 omega, the heating wire is an iron-chromium-aluminum alloy heating wire, when the heating pipe is applied to low-voltage direct current 12V, the resistance is changed to be less than 1 omega under the condition of the same defrosting heater power, the resistivity of the heating wire of the original defrosting heater cannot meet the requirement, and only the heating wire with a high-price low-resistivity model can be selected. Or the defrosting heating pipe works by using a special extra booster circuit to boost 12V to 220V and then using a common defrosting heating pipe working at 220V.
The prior art has the following defects:
1. the low voltage of 12V is used as the working voltage, the heating wire with low resistivity is used for manufacturing, the diameter of the heating wire is large, the process requirement of filling gaps with magnesium oxide powder cannot be met after the heating wire is too thick after being wound into the heating steel pipe, and the excessively thick winding wire is easy to be eccentric and not centered or is broken when the steel pipe is bent into a required shape. If the copper-nickel alloy heating wire with low resistivity is selected, the cost is high and the high temperature resistance is poor.
2. The booster circuit has high cost, high energy consumption and poor reliability.
Therefore, there is a need to improve the prior art to solve the deficiencies of the prior art.
The utility model has the following contents:
the utility model relates to a solve the problem that above-mentioned prior art exists and provide a forced air cooling refrigerator is with defrosting heater of high-efficient defrosting, it has solved under the low pressure 12V power supply condition, heater high power, the ultralow resistance problem.
The utility model discloses the technical scheme who adopts has: the defrosting heater is embedded with a fin evaporator and comprises two aluminum pipe heaters, two steel pipe heaters and two conducting wires, wherein the two aluminum pipe heaters are connected in parallel through the conducting wires, the two steel pipe heaters are connected in parallel through the conducting wires, and the two aluminum pipe heaters which are connected in parallel and the two steel pipe heaters which are connected in parallel through the conducting wires.
Furthermore, the aluminum pipe heater comprises an electric heating wire, a nickel-chromium alloy electric heating wire wound on the electric heating wire and an electric heating wire insulating sheath wrapped on the electric heating wire and the nickel-chromium alloy electric heating wire in a thermoplastic molding mode, and an aluminum pipe is sleeved on the outer side of the molded electric heating wire, the molded nickel-chromium alloy electric heating wire and the molded electric heating wire insulating sheath.
Further, the aluminum pipe heater is S-shaped.
Further, the steel tube heater comprises three nichrome heating wires wound together in parallel and 304 stainless steel filled with the nichrome heating wires, and magnesium oxide powder is filled between the nichrome heating wires and the 304 stainless steel to fill gaps.
Further, the diameter of the 304 stainless steel is 6.6mm.
Furthermore, the chromium alloy heating wire is made of Cr20Ni80 with the diameter of 0.42mm.
Furthermore, the steel tube heater is embedded in the lower half part of the finned evaporator.
Furthermore, the tube heater is embedded in the lower half part of the finned evaporator
The utility model discloses following beneficial effect has: the utility model discloses a three silk duplex winding of 0.42mm diameter nichrome electric heating wire are parallelly connected, and the 304 stainless steel pipe that satisfies conventional nichrome silk + conventional diameter 6.6mm makes ultralow resistance (being less than 1 omega) high power heating pipe and assembles in fin evaporator lower part, and cooperation low-power aluminum pipe heater inlays the dress in fin evaporator first one, carries out the combination formula heating. The air-cooled refrigerator can meet the use of high-power heating defrosting under the condition of 12V low pressure. The heating power of 150W under the voltage of 12V reaches the defrosting effect of the heating power of 220V, the voltage and 250W.
Description of the drawings:
fig. 1 is a schematic view of the aluminum pipe heater of the present invention.
Fig. 2 is a schematic diagram of the steel tube heater of the present invention.
Fig. 3 is a schematic view of the defrosting heater for efficient defrosting of the air-cooled refrigerator of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings.
The utility model discloses forced air cooling refrigerator is with defrosting heater of high-efficient defrosting, including aluminum pipe heater 1, steel pipe heater 2 and wire 3, wherein aluminum pipe heater 1 includes electric heat wire 10, twine nickel-chromium alloy electric heat wire 11 and the heat resistance 120 ℃ electric heat wire insulating skin 13 of thermoplastic molding parcel on electric heat wire 10 and nickel-chromium alloy electric heat wire 11 on electric heat wire 10, with the electric heat wire 10 that above-mentioned shaping is good, nickel-chromium alloy electric heat wire 11 and electric heat wire insulating skin 13 penetrate in aluminum pipe 14, transmit the heat conduction through aluminum pipe 14, make S shape aluminum pipe heater.
The steel pipe heater 2 comprises three nichrome heating wires 20 wound together in parallel and 304 stainless steel 21 with the diameter of 6.6mm, wherein the nichrome heating wires 20 are arranged in the stainless steel 21, and magnesium oxide powder 22 is filled between the nichrome heating wires 20 and the 304 stainless steel 21 to fill gaps. Wherein the nichrome heating wire 20 is made of Cr20Ni80 with the diameter of 0.42mm. The utility model discloses nickel-chromium alloy heater 20 three parallelly connected twines together, make the heater resistance become 1/3 of single heater resistance.
The utility model discloses air-cooled refrigerator is with high-efficient heater of defrosting is common including two aluminum pipe heater 1 and two steel pipe heater 2 that are parallelly connected together through wire 3, parallelly connected 3 parallelly connected through wire between above-mentioned two aluminum pipe heater 1 that connect in parallel and two steel pipe heater 2 that connect in parallel good.
Through the measures, the overall resistance of the defrosting heater can reach 1.2 ohms, and the power of the heater can reach about 120W under the condition of 12V power supply. The steel pipe heater 2 is arranged at the lower part of the fin evaporator and is used for heating and defrosting the lower part of the fin evaporator and the water pan.
The aluminum pipe heater 1 is embedded in the upper half part of the fin evaporator in an S shape, and the heating power can be well controlled to be about 30W by the existing aluminum pipe heater 1 process. The defrosting device is used for being embedded in the finned evaporator and defrosting the upper half part of the finned evaporator.
The utility model discloses a three silk duplex winding of 0.42mm diameter nichrome electric heating wire are parallelly connected, and the 304 stainless steel pipe that satisfies conventional nichrome silk + conventional diameter 6.6mm makes ultralow resistance (being less than 1 omega) high power heating pipe and assembles in fin evaporator lower part, and cooperation low-power aluminum pipe heater inlays the dress in fin evaporator first one, carries out the combination formula heating. The air-cooled refrigerator can meet the use of high-power heating defrosting under the condition of 12V low pressure. The heating power of 150W under the voltage of 12V reaches the defrosting effect of the heating power of 220V, the voltage and 250W.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides an air-cooled refrigerator is with defrosting heater of high-efficient defrosting, inlays with the fin evaporator and is adorned together which characterized in that: the aluminum pipe heating device comprises an aluminum pipe heater (1), a steel pipe heater (2) and a conducting wire (3), wherein the aluminum pipe heater (1) comprises two parallel-connected aluminum pipe heaters (3), the steel pipe heater (2) also comprises two parallel-connected steel pipe heaters (2), and the two parallel-connected aluminum pipe heaters (1) and the two parallel-connected steel pipe heaters (2) are connected in parallel through the conducting wire (3).
2. The defrosting heater for efficiently defrosting an air-cooled refrigerator according to claim 1, wherein: the aluminum pipe heater (1) comprises an electric heating wire (10), a nickel-chromium alloy electric heating wire (11) wound on the electric heating wire (10) and an electric heating wire insulating sheath (13) wrapped on the electric heating wire (10) and the nickel-chromium alloy electric heating wire (11) in a thermoplastic forming mode, wherein an aluminum pipe (14) is sleeved on the outer side of the formed electric heating wire (10), the formed nickel-chromium alloy electric heating wire (11) and the electric heating wire insulating sheath (13).
3. The defrosting heater for efficiently defrosting the air-cooled refrigerator of claim 2, wherein: the aluminum pipe heater is S-shaped.
4. The defrosting heater for efficiently defrosting the air-cooled refrigerator of claim 1, wherein: the steel tube heater (2) comprises three nichrome heating wires (20) which are wound together in parallel and 304 stainless steel (21) filled with the nichrome heating wires (20), and magnesium oxide powder (22) is filled between the nichrome heating wires (20) and the 304 stainless steel (21) to fill gaps.
5. The defrosting heater for efficiently defrosting the air-cooled refrigerator according to claim 4, wherein: the diameter of the 304 stainless steel (21) is 6.6mm.
6. The defrosting heater for efficiently defrosting the air-cooled refrigerator according to claim 5, wherein: the chromium alloy heating wire (20) is made of Cr20Ni80 with the diameter of 0.42mm.
7. The defrosting heater for efficiently defrosting an air-cooled refrigerator according to claim 1, wherein: the steel pipe heater (2) is embedded in the lower half part of the fin evaporator.
8. The defrosting heater for efficiently defrosting an air-cooled refrigerator according to claim 1, wherein: and the tube heater (1) is embedded in the lower half part of the fin evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221629049.XU CN217764078U (en) | 2022-06-28 | 2022-06-28 | Defrosting heater of forced air cooling refrigerator with high-efficient defrosting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221629049.XU CN217764078U (en) | 2022-06-28 | 2022-06-28 | Defrosting heater of forced air cooling refrigerator with high-efficient defrosting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217764078U true CN217764078U (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221629049.XU Active CN217764078U (en) | 2022-06-28 | 2022-06-28 | Defrosting heater of forced air cooling refrigerator with high-efficient defrosting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217764078U (en) |
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2022
- 2022-06-28 CN CN202221629049.XU patent/CN217764078U/en active Active
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