CN204678769U - Refrigerator - Google Patents

Abstract

The utility model provides a kind of refrigerator.This refrigerator comprises: casing, and inside is limited with room between storing; Rack component, comprises at least one horizontally disposed dividing plate, so that room between storing is vertically divided into multiple storage space; Worm drive assembly, vertically be arranged at chamber interior between storing, comprise screw rod, nut and locating part, wherein screw rod vertically arranges and runs through multiple storage space, nut is engaged with screw rod by screw thread, locating part, for limiting the anglec of rotation of nut relative to room between storing, drives nut vertical to move during to make screw rod rotate centered by it is axial; Infrared sensing device, is fixedly installed on nut, and arranges towards room between storing, is configured to the infrared ray sensing the article release of placing in multiple storage space, to determine the surface temperature of article.Utilize refrigerator of the present utility model, the food that can be in refrigerator provides best storage condition, reduces the nutrition leak of food, and saves the hardware cost of sensor.

Description

Refrigerator

Technical field

The utility model relates to refrigeration plant, particularly relates to a kind of refrigerator.

Background technology

Current refrigerator usually utilize be arranged in chamber interior between storing its position of temperature sensor senses around temperature, using the foundation of this temperature as refrigeration control.

But when using this control mode to carry out refrigerator control, when the temperature of temperature sensor measurement is higher than preset value, refrigerator starts refrigeration.In the actual use procedure of refrigerator, user can access by indoor article of depositing between frequent pair, the general temperature of the article just put into is higher, the temperature of article conducts to storage space by thermal-radiating mode needs the regular hour, after article temperature conducts to a room environmental, the temperature of temperature sensor senses just can rise, and starts the cold source devices such as compressor and freezes to room between storing.In the process, the temperature of article likely conducts on other article of being in contact with it, causes the food temperature deposited in refrigerator to change, causes nutrition leak, and hoarding effect declines.

In addition, when between storing, thing dividing plate is put when being divided into multiple relatively independent storage space in room, the storage space temperature just having put into article may higher than other storage spaces, use existing refrigerator temperature control method, need to freeze to room entirety between whole storing, cause waste of energy.

In the prior art, also there are indoor between storing and multiple temperature sensor is set, respectively the zones of different of room between storing is carried out to the detection of temperature detection, cause cost on the one hand, on the other hand owing to being detect the environment temperature of storage area, be still difficult to avoid the impact on article storage.

Utility model content

An object of the present utility model will provide a kind of can detect inner the refrigerator depositing article temperature.

A further object of the present utility model to save the sensor cost of refrigerator.

Another further object of the present utility model to reduce the electric energy of refrigeration for refrigerator consumption, and improve the hoarding effect of article.

Especially, the utility model provides a kind of refrigerator.This refrigerator comprises: casing, and inside is limited with room between storing; Rack component, comprises at least one horizontally disposed dividing plate, so that room between storing is vertically divided into multiple storage space; Worm drive assembly, vertically be arranged at chamber interior between storing, comprise screw rod, nut and locating part, wherein screw rod vertically arranges and runs through multiple storage space, nut is engaged with screw rod by screw thread, locating part, for limiting the anglec of rotation of nut relative to room between storing, drives nut vertical to move during to make screw rod rotate centered by it is axial; Infrared sensing device, is fixedly installed on nut, and arranges towards room between storing, is configured to the infrared ray sensing the article release of placing in multiple storage space, to determine the surface temperature of article.

Alternatively, above refrigerator also comprises: fixed head, laminating is fixed on inside the backboard of casing, and limit sensing device container cavity with backboard, be provided with for windowing of passing of infrared sensing device in the middle part of it, and worm drive assembly and infrared sensing device are arranged in described sensing device container cavity, wherein the sensing face of infrared sensing device pass window stretch between storing indoor.

Alternatively, locating part comprises: guide slide, is close to setting of windowing vertically, is provided with the groove passed at least partly for infrared sensor devices, with utilize groove limit infrared sensor devices towards.

Alternatively, the predetermined height of worm drive assembly in each storage space is preset with sense position, moves to sense position place for infrared sensing device, carries out temperature sensing to room between storing.

Alternatively, sense position at the height of its place storage space higher than 1/2nd places of storage space whole height; The infrared receiver center line of each infrared sensing device is set to 76 degree to 140 degree relative to screw rod angular range upwards.

Alternatively, the angular range of infrared receiver scope in perpendicular of infrared sensing device is set to 6 degree to 30 degree; And the angular range of infrared receiver scope in horizontal plane of infrared sensing device is set to 50 degree to 180 degree.

Alternatively, above refrigerator also comprises: compartment temperature sensing device, is configured to detect chamber interior environment temperature between storing.

Alternatively, above refrigerator also comprises: ducting assembly, is configured to controllably the cooling flow coming from low-temperature receiver is dispensed to multiple storage space according to the surface temperature of article.

Alternatively, ducting assembly comprises: air channel base plate, it is limited with many wind paths leading to multiple storage space respectively; Air-supply arrangement along separate routes, comprise the air inlet being connected to low-temperature receiver and the multiple distribution openings be connected with many wind paths respectively, air-supply arrangement is configured to controllably the air-flow coming from air inlet is dispensed to one or more in many wind paths through multiple distribution openings, to freeze to multiple storage space along separate routes.

Alternatively, air-supply arrangement comprises along separate routes: housing, it is formed with air inlet and distribution openings; Regulating part, has at least one occlusion part, and at least one occlusion part is movably arranged in housing, is configured to controllably cover multiple distribution openings, to adjust the respective air-out area of multiple distribution openings.

Refrigerator of the present utility model, utilizes worm drive assembly to drive infrared sensing device vertically to move up and down in multiple storage space, and the infrared ray of article release infrared sensing device being sensed place in multiple storage space, to determine the surface temperature of article.Thus utilize an infrared sensing device can realize sensing the temperature of the stores in different storage space, accurately to determine position and the temperature of refrigerator endogenous pyrogen, be convenient to control according to the situation of thermal source, for the food in refrigerator provides best storage condition, reduce the nutrition leak of food, and save the hardware cost of sensor.

Further, refrigerator of the present utility model, by being optimized the arrangement of infrared sensing device, can ensure that the infrared sensing region of infrared sensing device can cover whole storage space, make the thermal source determining indoor all positions between storing, avoid being interfered simultaneously.

Further, refrigerator of the present utility model is wind cooling refrigerator, utilizes ducting assembly controllably the cooling flow coming from low-temperature receiver to be dispensed to multiple storage space according to the surface temperature of article.Thus can, targetedly to occurring that the storage space of high temperature article freezes, avoid carrying out refrigeration waste electric energy to room between whole storing.

According to hereafter by reference to the accompanying drawings to the detailed description of the utility model specific embodiment, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present utility model more.

Accompanying drawing explanation

Hereinafter describe specific embodiments more of the present utility model with reference to the accompanying drawings by way of example, and not by way of limitation in detail.Reference numeral identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not be drawn in proportion.In accompanying drawing:

Fig. 1 is the schematic diagram of the refrigerator according to the utility model embodiment;

Fig. 2 is the detonation configuration schematic diagram of worm drive assembly in the refrigerator according to the utility model embodiment;

Fig. 3 carries out the schematic diagram of temperature sensing to the first storage space according to infrared sensing device in the refrigerator of the utility model embodiment;

Fig. 4 carries out the schematic diagram of temperature sensing to the second storage space according to infrared sensing device in the refrigerator of the utility model embodiment;

Fig. 5 is the sense position schematic diagram of infrared sensing device in the refrigerator according to the utility model embodiment; And

Fig. 6 is the schematic explosive view of ducting assembly in the refrigerator according to the utility model embodiment.

Detailed description of the invention

Fig. 1 is the schematic diagram of the refrigerator according to the utility model embodiment, and Fig. 2 is the detonation configuration schematic diagram of worm drive assembly in refrigerator according to the utility model embodiment, in order to illustrate chamber interior structure between refrigerator storing, not shown door body.This refrigerator can comprise in general manner: casing 110, rack component, worm drive assembly 300, infrared sensing device 130.

Casing 110 comprises roof, diapire, backboard and two, left and right sidewall and surrounds, and casing 110 front arranges a body (not shown), and door body can adopt pivot structure to be connected on sidewall.Casing 110 inside is limited with room between storing, and between this storing, room is preferably refrigerator room.

Rack component is configured to room between storing to be divided into multiple storage space 140.Wherein a kind of preferred structure is: rack component comprises at least one horizontally disposed dividing plate and (is introduced to arrange three dividing plates 121,122,123 in the present embodiment, the quantity of dividing plate can be carried out pre-configured according to the actual service condition of refrigerator), so that room between storing is vertically divided into multiple storage space 140.In the embodiment shown in Fig. 1 and Fig. 2, rack component comprises the first dividing plate 121, second partition 132, the 3rd dividing plate 123, wherein forms the first storage space above the first dividing plate 121, forms the second storage space between the first dividing plate 121 and second partition 122, forms the 3rd storage space between second partition 122 and the 3rd dividing plate 133.In other embodiments of the present utility model, the dividing plate quantity in rack component and the quantity of storage space 140 can be configured in advance according to the volume of refrigerator and instructions for use.

Worm drive assembly 300, is vertically arranged at chamber interior between storing, comprises screw rod 310, nut 320 and locating part 330.Screw rod 310 vertically arranges and runs through multiple storage space 140, nut 320 is engaged with screw rod 310 by screw thread, locating part 330, for limiting the anglec of rotation of nut 320 relative to room between storing, drives nut 320 vertically movement during to make screw rod 310 rotate centered by it is axial.Wherein screw rod 310 can be transmitted the driving of motor 311, rotates, because locating part 330 defines the angle of nut 320, nut 320 is moved up and down in screw rod 310 rotary course centered by screw rod 310 is axial.In the refrigerator of the present embodiment, screw rod 310 and nut 320 can adopt slip screw transmission also can select rolling spiral drive, and gyration is become rectilinear motion, drive nut 320 to realize moving up and down of vertical direction.

Infrared sensing device 130, is fixedly installed on nut 320, and arranges towards room between storing, is configured to sense the infrared ray that the article 150 placed in multiple storage space 140 discharge, to determine the surface temperature of article 150.

On the sidewall that above worm drive assembly 300, infrared sensing device 130 can be arranged at casing 110 or backboard, a kind of preferred embodiment is for being arranged on backboard.The refrigerator of the present embodiment can also be provided with fixed head 340, laminating is fixed on inside the backboard of casing 110, and limit sensing device container cavity with backboard, be provided with in the middle part of fixed head 340 for infrared sensing device 130 pass window 341, and worm drive assembly 300 and infrared sensing device 130 are arranged in sensing device container cavity, wherein the sensing face of infrared sensing device 130 pass window 341 to stretch between storing indoor, to enter to sense to the surface temperature of article in storage space 150.

Locating part 330 can comprise: guide slide 331, be close to 341 settings of windowing vertically, be provided with the groove passed at least partly for infrared sensor devices, with utilize groove limit infrared sensor devices towards, ensure infrared sensor devices all the time with same angle towards storage space 140.Locating part 330 can utilize the end of installing plate 332 and worm drive assembly 300 and fixed head 340 to be fixedly connected with, and the end of this worm drive assembly 300 can be provided with the driving motor 311 that drive screw 310 rotates.

The infrared sensing device 130 that the refrigerator of the present embodiment uses does not launch infrared ray, but the infrared ray that in passive reception institute sensing space, article are launched and background infrared ray, in direct perception refrigerator, the region of variation of article 150 temperature and temperature, be converted to the corresponding signal of telecommunication.Compared to infrared sensor of the prior art, the infrared sensing device 130 in the present embodiment, can detect the infrared ray of whole storage space 140, instead of only detects hot source point position.And driven by worm drive assembly 300 due to infrared sensing device 130, move to different storage space 140 places, article temperature sensing is carried out to each storage space 140.

Fig. 3 and Fig. 4 respectively illustrates infrared sensing device 130 in the refrigerator according to the utility model embodiment and different storage space is carried out to the schematic diagram of temperature sensing.Wherein in Fig. 3, infrared sensing device 130 carries out the temperature sensing of article 150 to the first storage space, has illustrated that infrared sensing device 130 carries out the temperature sensing of article 150 to the second storage space in Fig. 4.

The predetermined height of worm drive assembly 300 in each storage space is preset with sense position, after moving to sense position place, carries out temperature sensing to storage space for infrared sensing device 130.This sense position can pre-set according to interior refrigerator space, by to the control of driving motor 311 and the clamping mechanism predetermined height at each storage space, drive screw 310 stops the rotation, until after infrared sensing device 130 completes the temperature sensing to this storage space, infrared sensing device 130 is driven to move to the sense position place of adjacent storage space downward or upward.

Fig. 5 is the sense position schematic diagram of infrared sensing device in the refrigerator according to the utility model embodiment, sense position at the height l of its place storage space higher than 1/2nd places of storage space whole height L; The infrared receiver center line of each infrared sensing device is set to 76 degree to 140 degree relative to screw rod 310 angular extensions alpha upwards, and the angle theta of infrared receiver scope in perpendicular of infrared sensing device 130 can be selected in the scope of 6 degree to 30 degree.

In addition, the angular range of infrared receiver scope in horizontal plane of infrared sensing device 130 is set to 50 degree to 180 degree, and infrared receiver scope makes infrared sensing device 130 to have rectangular field of view in the angular range in perpendicular and in horizontal plane.Infrared receiving device 130 can limit out above rectangular field of view by arranging infrared guiding parts, to ensure that infrared remote receiver can reduce external disturbance, to carry out accurately detecting to storage space.The scope of above angle is larger, and the scope that can sense is larger, but the problem brought is precise decreasing, otherwise the scope of above angle is less, and precision improves, but the problem brought is sensing range reduces.In order to the relation of balance quality and sensing range, the present embodiment, through a large amount of test, obtains above number range.

Through test, the sense position of above infrared sensing device 130 can meet the sensing effect to temperature.Reduce external disturbance, and the storage space at its place carries out accurately detecting.Infrared sensing device 130 can according to the requirement of actual refrigerator choice arrangement mode in above scope flexibly.

The refrigerator of the present embodiment, when carrying out temperature sensing, can be rotated by driving motor 311 drive screw 310, by initial from initial position for infrared sensing device 130, move to the sense position place preset of each storage space 140 up or down one by one, temperature sensing is carried out, after the detection completing all storage spaces to the article 150 placed in storage space 140, infrared sensing device 130 is moved to initial position, completes whole detection process.Therefore the refrigerator of the present embodiment, utilizes single infrared temperature sensing device 130 to realize detecting the article temperature of multiple storage space, saves hardware cost.

The refrigerator of the present embodiment can also comprise in addition: compartment temperature sensing device (not shown), is configured to detect chamber interior environment temperature between storing.This compartment temperature sensing device can use thermistor equitemperature sensor to realize.Between the article temperature that the refrigerator of the present embodiment can be determined according to infrared sensing device 130 and storing, chamber interior environment temperature carries out refrigeration control, such as between storing, chamber interior environment temperature exceedes predetermined threshold and after determining that certain storage space 140 puts into high temperature or normal temperature article, starts refrigeration.

The refrigerator of the present embodiment can be wind cooling refrigerator, preferably, the refrigerator of the present embodiment additionally provide a kind of can to the ducting assembly of storage space 140 zone refrigeration.This ducting assembly is configured to controllably the cooling flow coming from low-temperature receiver is dispensed to multiple storage space 140 according to the surface temperature of article.Fig. 6 is the schematic explosive view of ducting assembly in the refrigerator according to the utility model embodiment.This ducting assembly comprises: air channel base plate 210, along separate routes air-supply arrangement, blower fan 230.Air channel base plate 210 is limited with many wind paths 214 leading to multiple storage space 140 respectively, each bar wind path 214 leads to different storage spaces 140 respectively, such as in the embodiment shown in fig. 1, the first confession air port 211 leading to the first storage space, the second confession air port 212 leading to the second storage space can be had and lead to the 3rd of the 3rd storage space for air port 213.

Air-supply arrangement comprises the air inlet 221 being connected to low-temperature receiver and the multiple distribution openings 222 be connected with many wind paths 214 respectively along separate routes.Distribution openings 222 is connected to different wind paths 214 respectively.The cold air coming from low-temperature receiver that blower fan 230 can controllably produce by this shunt air-supply arrangement is dispensed to different distribution openings 222 through air inlet 221, thus enters different storage spaces 140 through different wind paths 214.Such as, when high temperature article being occurred for the first storage space, cold air only can be distributed to the wind path 214 being connected to the first storage space by air-supply arrangement along separate routes, the first storing storage space 140 is supplied to for air port 211 through first, fast high temperature article is cooled, avoid the impact of other having been deposited to article, avoid simultaneously and the waste of energy brought is cooled to room between whole storing.Air-supply arrangement is configured to controllably the air-flow coming from air inlet 221 is dispensed to one or more in many wind paths 214 through multiple distribution openings 222, to freeze respectively to multiple storage space 140 along separate routes particularly.

The cooling flow coming from low-temperature receiver can be carried out centralized distribution by air-supply arrangement along separate routes, instead of arranges separately different air channels for different storage spaces 140, improves refrigerating efficiency.This shunt air-supply arrangement can comprise: housing 223, regulating part 224, cover plate 226.Housing 223 is formed with air inlet 221 and distribution openings 222, cover plate 226 and housing 223 are assembled, and form wind pushing cavity along separate routes.Regulating part 224 is arranged in this shunt wind pushing cavity.Regulating part 224 has at least one occlusion part 226, and occlusion part 226 is movably arranged in housing 223, is configured to controllably cover multiple distribution openings 222, to adjust the respective air-out area of multiple distribution openings 222.

The air-supply of blower fan 230 can feed to different storage spaces 140 through the distribution of regulating part 224, in the embodiment shown in fig. 6, air-supply arrangement can realize the ventilation state of nearly seven kinds along separate routes, such as can comprise: feed to first and open separately for the distribution openings 222 in air port 211, feed to second to open separately for the distribution openings 222 in air port 212, feed to the 3rd to open separately for the distribution openings 222 in air port 213, feed to first to open for the distribution openings 222 in air port 212 for air port 211 and second simultaneously, feed to first to open for the distribution openings 222 in air port 213 for air port 211 and the 3rd simultaneously, feed to second to open for the distribution openings 222 in air port 213 for air port 212 and the 3rd simultaneously, feed to first for air port 211, feed to second to open for the distribution openings 222 in air port 213 for air port 212 and the 3rd simultaneously.When the refrigerator of the present embodiment is separated out two storage spaces by a dividing plate, air-supply arrangement can be provided with two distribution openings along separate routes, possesses three kinds of ventilation states simultaneously.When carrying out shunt and blowing, regulating part 224 can rotate, and meeting air force according to demand decides the angle rotated, and the guide port formed between occlusion part 226 can aim at corresponding distribution openings 222.

Housing 223 is provided with motor 227, two stopper posts 228, positioning seat grooves 243 in shunt wind pushing cavity, the effect of stopper posts 228 is that motor 227 is in operation process, the motion of regulating part 224 is more accurate, and when powering up or after a period of time at every turn, regulating part 224 all moves to initial stopper posts 228 place, the turned position of specifying for starting point turns to it.The effect of positioning seat groove 243 ensures that regulating part 224 is located when often rotating the angle position of 30 degree.

Regulating part 224 is provided with disc spring sheet 229 (this disc spring sheet 229 also can replace with torsion spring), balancing weight 241 and alignment pin 245.One section of disc spring sheet 229 is fixed on cover plate 226, along with the running of regulating part 224, pretension applies reverse power to the other end, all the time apply certain bias force to regulating part 224, thus the backlash because of DC stepper motor 227 transmission mechanism can be suppressed to cause rock problem.Pivot part, towards being extended with counterweight part in the opposite direction with the main body footpath of regulating part 224, is provided with balancing weight 241 at the far-end of counterweight part, to eliminate offset torque.What alignment pin 245 can move up and down (passing through stage clip) is fixed on regulating part 224.Housing 223 is provided with the positioning seat groove 243 coordinated with it.

It should be noted that, the refrigerator of the present embodiment is described to have room between three storage spaces 140, when reality uses, can according to concrete instructions for use, by infrared sensing device 130, wind path 214, distribution openings 222, arrange for the quantity in air port, with the requirement of satisfied different refrigerator.

Utilize above structure, after the temperature (comprising room environmental temperature and article surface temperature between storing) measured at infrared sensing device 130 meets cooling activation condition, the refrigerator of the present embodiment can start the low-temperature receiver such as compressor, evaporimeter, and the air-flow being come from low-temperature receiver by blower fan 230 is supplied to ducting assembly.Along separate routes air-supply arrangement is according to the refrigeration strategy preset, and controls motor 227 and rotates to precalculated position by regulating part 224, by low-temperature receiver air-flow wind by different distribution openings 222 distribute be arranged on different storage space 140 for air port, realize refrigeration.Improve the refrigeration of refrigerator.Such as, if infrared sensing device 130 determines that the surface temperature of the article that the first dividing plate 121 is placed exceedes default temperature, and the environment temperature of room does not transfinite between storing, now, air-supply arrangement can start along separate routes, regulating part 224 is made to rotate to feeding to the first state opened separately for the distribution openings 222 in air port 211, blower fan 230 and cold source equipment start, separately to the first storage space air feed, temperature is made to exceed the article fast cooling of preset temperature, substantially reduce the impact on other article, improve fridge freshness retaining storing effect.Such as determine that the bulk temperature of room between storing is higher than limit value at compartment temperature sensing device again.Now, along separate routes air-supply arrangement can start, and makes to feed to first for air port 211, feeds to second and open for the distribution openings 222 in air port 213 for air port 212 and the 3rd simultaneously, freeze, ensure that the balance of chamber interior temperature between storing to room entirety between storing.

The refrigerator of the present embodiment, worm drive assembly 300 is utilized to drive infrared sensing device 133 vertically mobile in multiple storage space 140, the infrared ray of article release infrared sensing device 130 being sensed place in described multiple storage space, to determine the surface temperature of described article.Thus utilize an infrared sensing device 130 can realize sensing the temperature of the stores in different storage space, accurately to determine position and the temperature of refrigerator endogenous pyrogen, be convenient to control according to the situation of thermal source, for the food in refrigerator provides best storage condition, reduce the nutrition leak of food, and save the hardware cost of sensor, be optimized additionally by the arrangement of infrared sensing device, can ensure that the infrared sensing region of infrared sensing device can cover whole storage space, make the thermal source determining indoor all positions between storing, avoid being interfered simultaneously.

Further, the refrigerator of the present embodiment is wind cooling refrigerator, utilizes ducting assembly controllably the cooling flow coming from low-temperature receiver to be dispensed to multiple storage space according to the surface temperature of article.Thus can, targetedly to occurring that the storage space of high temperature article freezes, avoid carrying out refrigeration waste electric energy to room between whole storing.

So far, those skilled in the art will recognize that, although multiple exemplary embodiment of the present utility model is illustrate and described herein detailed, but, when not departing from the utility model spirit and scope, still can directly determine or derive other modification many or amendment of meeting the utility model principle according to content disclosed in the utility model.Therefore, scope of the present utility model should be understood and regard as and cover all these other modification or amendments.

Claims (10)

1. a refrigerator, is characterized in that comprising:

Casing, inside is limited with room between storing;

Rack component, comprises at least one horizontally disposed dividing plate, so that room between described storing is vertically divided into multiple storage space;

Worm drive assembly, vertically be arranged at chamber interior between described storing, comprise screw rod, nut and locating part, wherein said screw rod vertically arranges and runs through described multiple storage space, described nut is engaged with described screw rod by screw thread, described locating part, for limiting the anglec of rotation of described nut relative to room between described storing, drives described nut vertical to move during to make described screw rod rotate centered by it is axial;

Infrared sensing device, is fixedly installed on described nut, and arranges towards room between described storing, is configured to the infrared ray sensing the article release of placing in described multiple storage space, to determine the surface temperature of described article.

2. refrigerator according to claim 1, characterized by further comprising:

Fixed head, inside the backboard that described casing is fixed in laminating, and limits sensing device container cavity with described backboard, is provided with windowing of passing for described infrared sensing device in the middle part of it, and

Described worm drive assembly and described infrared sensing device are arranged in described sensing device container cavity, and windowing described in the sensing face of wherein said infrared sensing device passes, it is indoor to stretch between described storing.

3. refrigerator according to claim 2, is characterized in that described locating part comprises:

Guide slide, setting of windowing described in being close to vertically, is provided with the groove passed at least partly for described infrared sensor devices, with utilize described groove limit described infrared sensor devices towards.

4. refrigerator according to claim 1, is characterized in that

The predetermined height of described worm drive assembly in each described storage space is preset with sense position, moves to described sense position place for described infrared sensing device, carries out temperature sensing to room between described storing.

5. refrigerator according to claim 4, is characterized in that

Described sense position at the height of its place storage space higher than 1/2nd places of described storage space whole height;

The infrared receiver center line of each described infrared sensing device is set to 76 degree to 140 degree relative to described screw rod angular range upwards.

6. refrigerator according to claim 5, is characterized in that

The angular range of infrared receiver scope in perpendicular of described infrared sensing device is set to 6 degree to 30 degree; And

The angular range of infrared receiver scope in horizontal plane of described infrared sensing device is set to 50 degree to 180 degree.

7. refrigerator according to any one of claim 1 to 6, characterized by further comprising:

Compartment temperature sensing device, is configured to detect chamber interior environment temperature between described storing.

8. refrigerator according to any one of claim 1 to 6, characterized by further comprising:

Ducting assembly, is configured to controllably the cooling flow coming from low-temperature receiver is dispensed to described multiple storage space according to the surface temperature of described article.

9. refrigerator according to claim 8, is characterized in that described ducting assembly comprises:

Air channel base plate, it is limited with many wind paths leading to described multiple storage space respectively;

Air-supply arrangement along separate routes, comprise the air inlet being connected to low-temperature receiver and the multiple distribution openings be connected with described many wind paths respectively, described shunt air-supply arrangement is configured to controllably the air-flow coming from described air inlet is dispensed to one or more in described many wind paths through described multiple distribution openings, to freeze to described multiple storage space.

10. refrigerator according to claim 9, is characterized in that air-supply arrangement comprises along separate routes:

Housing, it is formed with described air inlet and described distribution openings;

Regulating part, has at least one occlusion part, and at least one occlusion part described is movably arranged in described housing, is configured to controllably cover described multiple distribution openings, to adjust the respective air-out area of described multiple distribution openings.