CN102322718A - Detection device and method of defrosting device for refrigerator - Google Patents

Abstract

The invention provides a detection device of a defrosting device for a refrigerator. The detection device comprises a heating wire circuit, a defrosting temperature sensor, a temperature fuse and a defrosting control key. The detection device is characterized in that the heating wire circuit is provided with a device requiring the heating wire to separately work; and the power can be detected by using an external power detection device. Whether the defrosting device works normally can be judged by determining whether the output power is matched with the design power.

Description

A kind of checkout gear of defrosting device for refrigerator and method

Technical field

The present invention relates to the defrosting field, relate in particular to a kind of checkout gear and method of defrosting device for refrigerator.

Background technology

In the prior art, defrosting device for refrigerator adopts the electrically heated mode of high-power defrosting, because the power of defrosting heater strip is bigger, if because of the defrosting device for refrigerator fault, can produce serious consequence.If defroster is worked always, then can cause the temperature recovery in the refrigerator body, thus can cause the power consumption quantitative change of refrigerator under regular service conditions big, if seriously then can cause the distortion of refrigerator body working of plastics, final serious phenomenon on fire to take place; If defroster is not worked, then can cause frosting serious, build-up ice gradually, cause refrigerator work unusual, the increase of refrigerator power consumption, refrigeration are descended, can cause leaky to take place when serious.Defroster of the prior art generally includes defrosting sensor, Thermal Cutoffs and electric heater unit.

To this, in the prior art, defrosting device for refrigerator has two kinds of protected modes usually; A kind of for passing through defrosting sensor detected temperatures; If reach preset temperature, then close the heater strip loop, some system also has maximum defrosting time function; Be that the heater strip operation surpasses Preset Time, timing defrosting temperature does not surpass yet compulsory withdrawal defrosting program of preset temperature; A kind of in addition pattern is for being furnished with Thermal Cutoffs, and fuse is set at certain fusing-off temperature, works when the defrost system fault causes heater strip always, and when causing the fuse temperature to surpass preset temperature, the defrosting program is closed in blown fuse.

Protected mode for defrosting device for refrigerator in the above-mentioned prior art is the protected mode in the refrigerator use; Though can avoid the generation of the serious phenomenon of grade on fire; But still can't avoid bringing because of the defroster fault as power consumption increase, refrigeration descend, the generation of consequence such as the refrigerator frosting is serious, also can't avoid, reduce or reduce the generation of aforementioned fault.

Summary of the invention

In view of above-mentioned deficiency, the object of the present invention is to provide a kind of apparatus and method of discovery defroster fault that can be more timely, effective, easy.

For reaching said purpose, the present invention provides a kind of detection method of defrosting device for refrigerator, comprises heater strip; The defrosting temperature sensor; Thermal Cutoffs, defrosting control button is characterized in that; The heater strip loop has the device that the requirement heater strip works independently, and can come detection power through the external power checkout gear.

Defrosting control button is two different keys.

Defrosting control button is set to push above certain hour and could starts the defrosting program that gets into.

Also comprise maximum defrosting time functional device.

It is 60 ~ 120 seconds that maximum defrosting time functional device is set to limiting time.

Defrosting control button is set to refrigerator and powers on behind the certain hour, could start entering defrosting program.

After defrosting control button is set to refrigerator and powered on 0 ~ 5 minute, could start entering defrosting program.

Defroster each several part fault is equipped with different failure codes.

For reaching said purpose, the present invention provides a kind of detection method of defrosting device for refrigerator, may further comprise the steps: steps A: refrigerator powers on behind the certain hour, according to predefined start-up operation program, gets into the defrost program, starts working in the heater strip loop; Step B: defrost program work certain hour; Step C: finish the defrost program; D: in be located at the power detection device in heater strip loop, export detection signal to display floater; E: observe contrast test power and whether conform to, judge whether the defroster of refrigerator is normal with design power.

Method through adopting this device to detect detects defroster, discovery defroster fault that can be more timely, effective, easy.

Through the method that adopts this device to detect, set through pushing two control buttons simultaneously or pushing operating key and could get into the defrosting program above certain hour, can prevent that user misoperation from getting into the defrosting program.

Through the method that adopts this device to detect, just can get into the defrosting program after setting the certain hour that powers on, can prevent that user misoperation from getting into the defrosting program.

Through the method that adopts this device to detect, just can get into the defrosting program after setting the certain hour that powers on, can observe the working condition of defroster, and the excessively work that prevents causes abnormal conditions to take place.

Through the method that adopts this device to detect, different faults is provided with corresponding different failure codes, can the convenient for maintaining personnel be checked through fault fast.

The specific embodiment

Below, specific embodiments of the invention is elaborated.

Under the mode of operation of prior art, added new detection protected mode.The method of work of new detecting pattern is a defroster detection method of the present invention.That is,, whether specific power output and design power are conformed to judge whether defroster work is normal according to the detection of defrosting device for refrigerator power.Its concrete steps are elaborated following.

Defrosting device for refrigerator comprises the heater strip loop, the defrosting temperature sensor, and Thermal Cutoffs, defrosting control button is characterized in that the heater strip loop has the device that the requirement heater strip works independently, and can come detection power through the external power checkout gear;

The detection method of defrosting device for refrigerator comprises the steps: A: after refrigerator powers on, according to predefined start-up operation program, getting into the defrost program, starts working in the heater strip loop; Step B: defrost program work certain hour; Step C: finish the defrost program; D: in be located at the power detection device in heater strip loop, export detection signal to display floater; E: observe contrast test power and whether conform to, judge whether the defroster of refrigerator is normal with design power.

With concrete embodiment said defroster and detection method are described below.

Embodiment 1

In this embodiment, refrigerator powered on 0 ~ 5 minute in, pinned two buttons that are arranged on the display floater simultaneously and surpassed after 10 seconds, got into the defrosting program, started working in the heater strip loop.Setting power on 5 minutes with interior, simultaneously pin two buttons and surpassed for 10 seconds after the heater strip loop just start working, such benefit is, can prevent the user power on after faulty operation entering defrosting program.

The defrosting program carried out for 60 ~ 120 seconds, observed the ruuning situation of defrosting program, withdrawed from the defrosting program by normal procedure, caused unusually to prevent that heater strip from excessively working.So both can observe the situation of carrying out of defrosting program, and also can prevent that the overheated abnormal conditions that cause of heater strip from taking place simultaneously.

Through the pattern of setting, the artificial defrosting mode that gets into after the defroster operation, detects refrigerator power, judges through whether specific power output and design power are conformed to whether heating wire works is normal.

 

Embodiment 2

The 2nd embodiment is similar with the 1st embodiment, and it is different with the 1st embodiment therefore only to describe second embodiment.

After refrigerator powered on, steps A also can adopt following mode to get into the defrost program, is started working in the heater strip loop: after refrigerator powered on 0 ~ 5 minute, pin the specific keys that is arranged on the display floater setting and exceed more than the specific time, heater strip is started working.Get into the defrosting program through this kind mode, can play preventing that user's mistake from getting into the effect of defrosting program equally.

In addition, through in this pattern, giving different faults preset corresponding failure code, for the fault that has existed, the maintenance personal can be checked through fault fast, and carries out maintenance platoon and remove.

Claims (10)

1. a defroster checkout gear comprises heater strip, the defrosting temperature sensor, and Thermal Cutoffs, defrosting control button is characterized in that the heater strip loop has the device that the requirement heater strip works independently, and can come detection power through the external power checkout gear.

2. a kind of defroster checkout gear as claimed in claim 1 is characterized in that, defrosting control button is two different keys.

3. a kind of defroster checkout gear as claimed in claim 1 is characterized in that, defrosting control button is set to push above certain hour and could starts the defrosting program that gets into.

4. a kind of defroster checkout gear as claimed in claim 1 is characterized in that, also comprises maximum defrosting time functional device.

5. a kind of defroster checkout gear as claimed in claim 4 is characterized in that it is 60 ~ 120 seconds that maximum defrosting time functional device is set to limiting time.

6. like the described a kind of defroster checkout gear of claim 1 ~ 5, it is characterized in that defrosting control button is set to refrigerator and powers on behind the certain hour, could start entering defrosting program.

7. a kind of defroster checkout gear as claimed in claim 6 is characterized in that, after defrosting control button is set to refrigerator and powered on 0 ~ 5 minute, could start entering defrosting program.

8. like the described a kind of defroster checkout gear of claim 1 ~ 5, it is characterized in that defroster each several part fault is equipped with different failure codes.

9. a kind of defroster checkout gear as claimed in claim 7 is characterized in that defroster each several part fault is equipped with different failure codes.

10. a detection method of using defrosting device for refrigerator as claimed in claim 1 is characterized in that, may further comprise the steps

A: after refrigerator powers on, according to predefined start-up operation program, getting into the defrost program, starts working in the heater strip loop;

B: defrost program work certain hour;

C: finish the defrost program;

D: in be located at the power detection device in heater strip loop, export detection signal to display floater;

E: observe contrast test power and whether conform to, judge whether the defroster of refrigerator is normal with design power.