CN206146091U - Forced air cooling refrigerator with false inefficacy function of white sensor of differentiationization - Google Patents

Abstract

The utility model discloses a forced air cooling refrigerator with false inefficacy function of white sensor of differentiationization, include box, display unit, walk -in, freezer, evaporimeter, evaporating dish, cold -stored temperature -sensitive head, fan, freezer temperature sensor, change white sensor, change white heating pipe, compressor and control panel, the evaporating dish includes first evaporating dish and second evaporating dish. The device reasonable in design, the fault rate is low, and the safety in utilization goes with operating stability, the device detects between frost season in the entering trouble through the white sensor of changing to becoming invalid once more to can judge changing white sensor effectively, eliminate the possibility of judging by accident basically, whether the device judges and will change between frost season through setting up the zone digit, come to carry out the secondary detection to changing white sensor to eliminating the possibility of erroneous judgement, using the reliability high, the effectively erroneous judgement of the white sensor of the reduction reduces maintenance cost and user's complaint, maintains brand image.

Description

A kind of wind cooling refrigerator with discriminating defrosting sensor vacation invalidation functions

Technical field

This utility model is related to a kind of refrigerator, specifically a kind of with the air-cooled ice for differentiating defrosting sensor vacation invalidation functions Case.

Background technology

Refrigerator is to maintain a kind of refrigeration plant of constant low temperature, and one kind makes food or other articles keep constant low temperature The product for civilian use of cold conditions, has compressor, ice machine to the cabinet that freezes or case in the casing of refrigerator；Refrigerator is exactly a kind of with system The hutch of device for cooling.In refrigerator industry, wind cooling refrigerator is because with thermograde is little, be not required to artificial defrosting, being user using carrying Very big convenience is supplied, has been greatly favored by consumers in countries such as America and Europe, Japan and Korea S..With internal people's growth in the living standard, closely Nian Lai, wind cooling refrigerator are increasingly favored.

The dampness entered in case outside in refrigerator and case, can be taken on vaporizer by the circulated air in casing, and be condensed Cheng Bing, As time goes on, the ice on vaporizer can be more and more, if not in time ice above is removed, influence whether The refrigeration of refrigerator；If defrost not in time can a defrost produce substantial amounts of defrosting water, be likely to result in water and flow out water receiving Ware has overflow in casing, so as to customer complaint etc. is caused on the floor of the user that gets wet.Present wind cooling refrigerator adopts rustless steel, aluminum The forms such as defrost heating tube, quartz ampoule defrost pipe are heated to the air channel of wind cooling refrigerator, in order to the ice in air channel, frost are removed dry Only, typically to hold on an evaporator and set a defrosting sensor, by the temperature on detecting sensor（General 3-8 degree）, sentence It is disconnected whether to terminate defrost, if defrost always, the temperature in air channel can be caused too high, the safety problem such as cause to catch fire. For frostless product, defrosting sensor is critically important, if defrost heating tube is heated always, refrigerator has the danger caught fire, and needs To judge when to exit defrost by defrosting sensor, the frost and ice of region of interest can be with one side guard box body Melt, to ensure refrigeration performance, the defrost heating tube that another side prevents heats always and causes performance not up to standard and have fire hazard.For Ensure the safety of refrigerator product, generally individually the effectiveness popped one's head in will be detected, when its open circuit or short circuit is found, also When being that its resistance overruns, can report to the police immediately, remind user malfunction report for repairment, but all be that people actively go to check ice now Whether the defrosting sensor of case fails, and refrigerator is unable to automatic identification, and this just brings inconvenience for the use of people.

Utility model content

The purpose of this utility model is to provide a kind of wind cooling refrigerator with discriminating defrosting sensor vacation invalidation functions, with Propose in solving the problems, such as above-mentioned background technology.

For achieving the above object, this utility model provides following technical scheme：

It is a kind of with differentiate defrosting sensor vacation invalidation functions wind cooling refrigerator, including casing, display unit, cold room, Refrigerating chamber, vaporizer, evaporating dish, cold preservation temperature-sensitive head, blower fan, freezer temperature sensor, defrosting sensor, defrost heating tube, Compressor and panel, the evaporating dish include the first evaporating dish and the second evaporating dish, and display unit is located at the outside of casing, cold Hide room and shelf and fruit and vegetable box are installed in the upper end and cold preservation room of box house, fruit and vegetable box is located at the most bottom of cold room End, is provided with air door beside fruit and vegetable box, refrigerating chamber is located at the lower end of box house, and freezing interior is provided with air channel assembly, wind Fan blade, blower fan and defrosting sensor are installed in road assembly, the upper end of refrigerating chamber is provided with the upper drawer of freezing, and vaporizer is located at wind Road assembly rear, is provided with defrost heating tube below vaporizer, the first evaporating dish is located at the lower section of defrost heating tube, compresses seat in the plane In the lower section of the first evaporating dish and the rear of compressor is provided with compressor bonnet, the second evaporating dish is located under compressor Side, defrosting sensor are located above vaporizer, be provided with cold preservation temperature-sensitive head and cold preservation temperature-sensitive head is located at cold room in cold preservation room Centre, freezer temperature sensor be located at refrigerating chamber centre position, panel be arranged on casing in, panel respectively with pressure The electrical connection of contracting machine, blower fan, cold preservation temperature-sensitive head, freezer temperature sensor and defrosting sensor.

As further program of the utility model：The top of cold room is additionally provided with lamp switch.

As further program of the utility model：Cold preservation temperature-sensitive head, freezer temperature sensor and defrosting sensor are equal Using critesistor.

Compared with prior art, the beneficial effects of the utility model are：The device is reasonable in design, and fault rate is low, using peace Full property and good operation stability；The device is examined during into failure defrost again by the defrosting sensor to failing Survey, such that it is able to effectively judge to defrosting sensor, substantially eliminate the probability of erroneous judgement；The device is by arranging Flag bit, decides whether to during defrost, to carry out secondary detection to defrosting sensor, to eliminate the probability of erroneous judgement, It is high using reliability, the erroneous judgement of defrosting sensor can be effectively reduced, the complaint of maintenance cost and user is reduced, is safeguarded brand shape As.

Description of the drawings

Fig. 1 is the external structure schematic diagram with the wind cooling refrigerator for differentiating defrosting sensor vacation invalidation functions.

Fig. 2 is the A with the wind cooling refrigerator for differentiating defrosting sensor vacation invalidation functions to profile.

Fig. 3 is with differentiating to carry out the work of defrosting sensor judgement in the wind cooling refrigerator of defrosting sensor vacation invalidation functions Flow chart.

Wherein：1- casings, 2- display uniies, 3- cold rooms, 4- refrigerating chambers, 5- shelves, 6- air doors, 7- fruit and vegetable boxes, 8- steam Send out device, the first evaporating dishs of 9-, 10- lamp switches, 11- cold preservation temperature-sensitive heads, drawer in 12- freezings, 13- fan blades, 14- blower fans, 15-ization White sensor, 16- defrost heating tubes, 17- freezer temperature sensors, the second evaporating dishs of 18-, 19- compressor bonnets, 20- pressures Contracting machine, 21- air channels assembly, 22- panels.

Specific embodiment

The technical scheme of this patent is described in more detail with reference to specific embodiment.

Refer to Fig. 1-3, a kind of wind cooling refrigerator with discriminating defrosting sensor vacation invalidation functions, including casing 1, display Part 2, cold room 3, refrigerating chamber 4, vaporizer 8, evaporating dish, cold preservation temperature-sensitive head 11, blower fan 14, freezer temperature sensor 17, Defrosting sensor 15, defrost heating tube 16, compressor 20 and panel 22, the evaporating dish include the first evaporating dish 9 and second Evaporating dish 18, display unit 2 are located at the outside of casing 1, and cold room 3 is located in the upper end inside casing 1 and cold room 3 and installs There are shelf 5 and fruit and vegetable box 7, fruit and vegetable box 7 is located at the lowermost end of cold room 3, and the side of fruit and vegetable box 7 is provided with air door 6, refrigerating chamber 4 Lower end inside casing 1, is provided with air channel assembly 21, is provided with fan blade 13, blower fan 14 in air channel assembly 21 in refrigerating chamber 4 With defrosting sensor 15, the upper end of refrigerating chamber 4 is provided with to freeze goes up drawer 12, and vaporizer 8 is located at 21 rear of air channel assembly, evaporation Defrost heating tube 16 is installed below device 8, the first evaporating dish 9 is located at the lower section of defrost heating tube 16, and compressor 20 is located at first The lower section of evaporating dish 9 and the rear of compressor 20 are provided with compressor bonnet 19, and the second evaporating dish 18 is located at compressor 20 Lower section, defrosting sensor 15 are located above vaporizer 8, are provided with cold preservation temperature-sensitive head 11 and cold preservation temperature-sensitive head 11 in cold room 3 Positioned at the centre of cold room 3, freezer temperature sensor 17 is located at the centre position of refrigerating chamber 4, and panel 22 is arranged on casing 1 It is interior, panel 22 respectively with compressor 20, blower fan 14, cold preservation temperature-sensitive head 11, freezer temperature sensor 17 and defrosting sensor 15 electrical connections.The top of cold room 3 is additionally provided with lamp switch 10.Cold preservation temperature-sensitive head 11, freezer temperature sensor 17 and defrost Sensor 15 adopts critesistor.

Operation principle of the present utility model is：Freezer temperature sensor 17 is detecting the temperature in refrigerating chamber 4, and feeds back Signal controls the operating of the start-stop of compressor 20 and blower fan 14 to panel 22；In the detection cold room 3 of cold preservation temperature-sensitive head 11 Temperature, controls the switch of air door 6, so as to controlling the temperature in cold room 3.Panel 22 is provided for indicating defrost sensing Whether the defrosting sensor failure of malfunction indicates position to device 15：FLAG_DFROST, refrigerator run duration, panel 22 can determine Phase detects that to each temperature sensor in time interrupt processing function, As time goes on, the timing of intervalometer reaches After setting value, master controller produces interruption, in interrupt processing function, through analog digital conversion, to the numerical value sampled by analysis Afterwards, its value is judged, if it is judged that the resistance of sensor exceedes its upper limit value and lower limit value, then puts defrosting sensor failure mark Will FLAG_FROST=1, if it is judged that the resistance of sensor is thereon, in the range of lower limit, then put defrosting sensor failure mark Will FLAG_FROST=0, if detect defrosting sensor 15 failed, can put flag bit on software：FLAG_DFROST is 1, now, the not alarm user malfunction of panel 22；Panel 22 can add up operation to compressor 20 and carry out timing, when reaching After certain hour, compressor 20 and blower fan 14 can be stopped and air door 6 is closed, defrost is carried out；In defrost, programmed decision FLAG_ Whether DFROST is 1, enters failure defrost pattern if 1；After defrost heating tube 16 is heated ten minutes, degree is detected again Defrosting sensor 15, if now defrosting sensor 15 is normal, into normal defrost control program, otherwise exits defrost journey Sequence, and display alarm information.

The device is reasonable in design, and fault rate is low, safety in utilization and good operation stability；The device is by the change to failing White sensor 15 is detected during into failure defrost again, such that it is able to effectively sentence to defrosting sensor 15 It is fixed, substantially eliminate the probability of erroneous judgement；The device is decided whether to during defrost by arranging flag bit, and it is right to come Defrosting sensor 15 carries out secondary detection, to eliminate the probability of erroneous judgement, high using reliability, can effectively reduce defrost sensing The erroneous judgement of device 15, reduces the complaint of maintenance cost and user, safeguards brand image.

It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new The scope of type is by claims rather than described above is limited, it is intended that the equivalency fallen in claim is contained All changes in justice and scope are included in this utility model.Any reference in claim should not be considered as restriction Involved claim.

Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped Containing an independent technical scheme, this narrating mode of description is only that those skilled in the art should for clarity Using description as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art Understandable other embodiment.

Claims (3)

1. it is a kind of with the wind cooling refrigerator for differentiating defrosting sensor vacation invalidation functions, it is characterised in that including casing, display part Part, cold room, refrigerating chamber, vaporizer, evaporating dish, cold preservation temperature-sensitive head, blower fan, freezer temperature sensor, defrosting sensor, change White heating tube, compressor and panel, the evaporating dish include the first evaporating dish and the second evaporating dish, and display unit is located at casing Outside, cold room is located in the upper end and cold preservation room of box house and is provided with shelf and fruit and vegetable box, and fruit and vegetable box is located at cold preservation The lowermost end of room, is provided with air door beside fruit and vegetable box, refrigerating chamber is located at the lower end of box house, and freezing interior is provided with air channel Assembly, is provided with fan blade, blower fan and defrosting sensor in the assembly of air channel, the upper end of refrigerating chamber is provided with the upper drawer of freezing, evaporation Device is located at air channel assembly rear, and defrost heating tube is provided with below vaporizer, and the first evaporating dish is located at the lower section of defrost heating tube, The rear of lower section and compressor that compressor is located at the first evaporating dish is provided with compressor bonnet, and the second evaporating dish is located at compression The lower section of machine, defrosting sensor are located above vaporizer, be provided with cold preservation temperature-sensitive head and cold preservation temperature-sensitive head is located in cold preservation room The centre of cold room, freezer temperature sensor are located at the centre position of refrigerating chamber, and panel is arranged in casing, panel point Do not electrically connect with compressor, blower fan, cold preservation temperature-sensitive head, freezer temperature sensor and defrosting sensor.

2. it is according to claim 1 with the wind cooling refrigerator for differentiating defrosting sensor vacation invalidation functions, it is characterised in that institute The top for stating cold room is additionally provided with lamp switch.

3. according to claim 1 and 2 with the wind cooling refrigerator for differentiating defrosting sensor vacation invalidation functions, its feature exists In the cold preservation temperature-sensitive head, freezer temperature sensor and defrosting sensor adopt critesistor.