CN202304180U - Frostless refrigerator - Google Patents
Frostless refrigerator Download PDFInfo
- Publication number
- CN202304180U CN202304180U CN2011202892594U CN201120289259U CN202304180U CN 202304180 U CN202304180 U CN 202304180U CN 2011202892594 U CN2011202892594 U CN 2011202892594U CN 201120289259 U CN201120289259 U CN 201120289259U CN 202304180 U CN202304180 U CN 202304180U
- Authority
- CN
- China
- Prior art keywords
- heater strip
- heating wire
- air channel
- frost
- refrigerating chamber
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a frostless refrigerator which comprises a refrigerating chamber and an air duct system. A supplementing heating wire and a magnetic sensitive switch connected with the supplementing heating wire are installed on the back portion of the refrigerating chamber. The heating wire is controlled through the magnetic sensitive switch: when the environmental temperature t is not larger than t1, a heating wire control circuit is connected, and the heating wire begins to heat; in a connecting state, when the environmental temperature t is not smaller than t2, the magnetic sensitive switch acts, the heating wire control circuit is disconnected, and the heating wire stops heating and is not connected again until t is not larger than t1; and if t is smaller than t2, the heating wire control circuit is connected all the time. By adding refrigerating load and increasing circulating air quantity of refrigeration, the functionality faults such as frosting and freezing of the air duct system possibly caused by small circulating air quantity during use in a bad low-temperature environment are solved, and stability and reliability of the mechanical frostless refrigerator are improved.
Description
Technical field
The utility model belongs to technical field of electrical equipment, particularly a kind of frost-free refrigerator and control method.
Background technology
For the direct-cooled household refrigerator-freezer of single system machinery, generally a compensating heater is arranged at present, do not start and the freezing problem that can not realize storage temperature that causes to solve at low temperature environment lower compression machine at refrigerating chamber; And for frost-free refrigerator; Particularly mechanical frost-free refrigerator, a problem that is generally faced is: when under low temperature environment, using, though can satisfy the freezer temperature requirement through the method for turning air door down; But might be little because of refrigeration demand air circulation; When environment for use humidity high with use when frequent, cause in the ducting system moisture band not walked and cause frosting, freeze, even result in blockage and cause functional fault.To this problem, the method that present computer frost-free refrigerator is taked on the air channel, to add heater strip and electronic damper control usually solves, but mechanical refrigerator is not because the limitation of control has the obvious and effective solution usually.
The utility model content
The problem that the utility model will solve is to the deficiency of prior art a kind of frostless mechanical refrigerator that can solve the functional fault problem that causes because the refrigeration cycle air quantity is little when under the low temperature adverse circumstances, using to be provided.
For realizing above-mentioned purpose, the technical scheme of the utility model is: a kind of frost-free refrigerator comprises refrigerating chamber and ducting system, said refrigerating chamber back installing compensation heater strip and the magnetosensitive switch that is connected with the compensation heater strip.
Further, be provided with an air channel heater strip in the said ducting system at least, said air channel heater strip is connected with the magnetosensitive switch.
Further, said compensation heater strip is located in the alveolar layer of refrigerating chamber back.
Further, said air channel heater strip is located in the ducting system frosting or icing position easily.
Further, said air channel heater strip comprises the first air channel heater strip and the second air channel heater strip, is arranged in the refrigeration supply air duct mouth and refrigeration return airway mouth that are connected with the evaporator of refrigerator chamber.
Preferably, said compensation heater strip and air channel heater strip power are 4 watts to 10 watts.
Compared with prior art, the utlity model has following beneficial effect:
The utility model increases a compensation heater strip in frostless mechanical refrigerator refrigerating chamber; Increase heater strip in easy frosting or icing position, air channel simultaneously; Utilize the magnetosensitive switch to come to realize switch control, thereby improve the stability and the reliability of frostless mechanical refrigerator effectively heater strip according to the variation of environment temperature.
Description of drawings
Fig. 1 is the utility model frost-free refrigerator structure chart;
Fig. 2 is the sketch map of the utility model frost-free refrigerator ducting system;
Fig. 3 is the flow chart of the utility model frost-free refrigerator control procedure.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is carried out detailed description.
As depicted in figs. 1 and 2; The utility model discloses a kind of frost-free refrigerator; Comprise refrigerating chamber and ducting system, installing compensation heater strip 2, the first air channel heater strips 4 are arranged in the refrigeration supply air duct mouth that is connected with the evaporator of refrigerator chamber 3 of ducting system and refrigerate return airway mouth 7 with the second air channel heater strip 5 in the refrigerating chamber 1 back alveolar layer; Compensation heater strip 2, the first air channel heater strips 4 all are connected with magnetosensitive switch 6 with the second air channel heater strip 5.Magnetosensitive switch 6 can be installed in the timer lid of back, also can be installed in other positions responsive to environment temperature.Compensation heater strip 2, the first air channel heater strips 4 and the second air channel heater strip 5 adopt the heater of 4 watts of power usually, and the position and the power of the first air channel heater strip 4 and the second air channel heater strip, 5 power can specifically be adjusted according to the size and the layout in air channel.
Fig. 3 is the control procedure flow chart, utilizes magnetosensitive switch 6 that compensation heater strip 2, the first air channel heater strips 4 and the second air channel heater strip 5 are controlled:
When environment temperature t≤t1,6 actions of magnetosensitive switch, heating strip control circuit is connected, and heater strip begins heating;
Under on-state: when environment temperature t>=t2,6 actions of magnetosensitive switch, heating strip control circuit is broken off, and heater strip stops heating and when t≤t1, just recloses; If t＜t2, then the heater strip circuit is connected always;
T1 gets 10 ℃ usually, and t2 gets 16 ℃ usually.
The utility model increases the air circulation of refrigeration through increasing the refrigeration load; Solved when under the low temperature adverse circumstances, using and to have waited functional fault because the ducting system frosting that air circulation causes is for a short time frozen, improved the stability and the reliability of mechanical frost-free refrigerator.
The utility model increases a compensation heater strip in frostless mechanical refrigerator refrigerating chamber; Increase the air channel heater strip in easy frosting or icing position, air channel simultaneously; Utilize the magnetosensitive switch to come to realize switch control, thereby effectively improve the stability and the reliability of frostless mechanical refrigerator heater according to the variation of environment temperature.Have following characteristics:
1) increases a compensation heater strip at mechanical frost-free refrigerator refrigerating chamber;
2) in mechanical frost-free refrigerator ducting system, increase the air channel heater strip;
3) in mechanical frost-free refrigerator, increasing the magnetosensitive switch realizes according to variation of ambient temperature heater being controlled;
4) choose suitable heating silk and position according to the virtual condition of casing;
5) choose suitable t1 and t2, realize effective control heater strip;
6) under low temperature environment, can satisfy the cryogenic temperature requirement when guaranteeing the refrigeration cycle air quantity under not through the prerequisite of excessively turning air door down.
Claims (6)
1. a frost-free refrigerator comprises refrigerating chamber and ducting system, it is characterized in that: said refrigerating chamber (1) back installing compensation heater strip (2) and the magnetosensitive switch (6) that is connected with compensation heater strip (2).
2. frost-free refrigerator according to claim 1 is characterized in that: be provided with an air channel heater strip in the said ducting system at least, said air channel heater strip is connected with magnetosensitive switch (6).
3. frost-free refrigerator according to claim 1 is characterized in that: said compensation heater strip (2) is located in the alveolar layer of refrigerating chamber (1) back.
4. frost-free refrigerator according to claim 2 is characterized in that: said air channel heater strip is located at easy frosting or icing position in the ducting system.
5. frost-free refrigerator according to claim 4; It is characterized in that: said air channel heater strip comprises the first air channel heater strip (4) and the second air channel heater strip (5), is arranged in the refrigeration supply air duct mouth (3) and the refrigeration return airway mouth (7) that are connected with the evaporator of refrigerator chamber.
6. frost-free refrigerator according to claim 5 is characterized in that: said compensation heater strip (2) and air channel heater strip power are 4 watts to 10 watts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202892594U CN202304180U (en) | 2011-08-10 | 2011-08-10 | Frostless refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202892594U CN202304180U (en) | 2011-08-10 | 2011-08-10 | Frostless refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202304180U true CN202304180U (en) | 2012-07-04 |
Family
ID=46373064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202892594U Expired - Fee Related CN202304180U (en) | 2011-08-10 | 2011-08-10 | Frostless refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202304180U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949464A (en) * | 2015-06-30 | 2015-09-30 | 青岛海尔股份有限公司 | Mechanical single system refrigerator |
| CN112082317A (en) * | 2020-09-09 | 2020-12-15 | 上海海洋大学 | Wheel disc type electric heating wire system |
| CN112268401A (en) * | 2020-09-14 | 2021-01-26 | 珠海格力电器股份有限公司 | Refrigerator and defrosting control method thereof |
-
2011
- 2011-08-10 CN CN2011202892594U patent/CN202304180U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949464A (en) * | 2015-06-30 | 2015-09-30 | 青岛海尔股份有限公司 | Mechanical single system refrigerator |
| CN112082317A (en) * | 2020-09-09 | 2020-12-15 | 上海海洋大学 | Wheel disc type electric heating wire system |
| CN112268401A (en) * | 2020-09-14 | 2021-01-26 | 珠海格力电器股份有限公司 | Refrigerator and defrosting control method thereof |
| CN112268401B (en) * | 2020-09-14 | 2022-02-08 | 珠海格力电器股份有限公司 | Refrigerator and defrosting control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20150810 |
|
| EXPY | Termination of patent right or utility model |