Summary of the invention
An object of the present invention is to provide a kind of and can detect inner the refrigerator depositing article temperature.
A further object of the present invention to reduce the electric energy of refrigeration for refrigerator consumption.
Another further object of the present invention improves the hoarding effect of article.
Especially, the invention provides a kind of refrigerator.This refrigerator comprises: casing, and inside is limited with room between storing; Rack component, is arranged in chamber interior between storing, so that room between storing is divided into multiple storage space; And temperature sensing component, comprise multiple infrared sensing device, each infrared sensing device is arranged on the cabinet wall of a storage space, and is configured to the infrared ray sensing the article release of placing in storage space, to determine the surface temperature of article.
Alternatively, rack component comprises: at least one horizontally disposed dividing plate, so that room between storing is vertically divided into multiple storage space.
Alternatively, each infrared sensing device is arranged at the inside sidewalls of adjacent door body pivotal axis in casing, and multiple infrared sensing device is vertically arranged in a straight line along one.
Alternatively, each infrared sensing device is at the height of its place storage space higher than 1/2nd places of storage space whole height, and the infrared receiver center line of each infrared sensing device is set to 70 degree to 150 degree relative to angular range straight up; And the floor projection of the infrared receiver center line of each infrared sensing device and the angular range of its place sidewall are set to 30 degree to 60 degree.
Alternatively, each infrared sensing device its place storage space height higher than or be positioned at 2/3rds 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 angular range straight up; And the floor projection of the infrared receiver center line of each infrared sensing device and the angular range of its place sidewall are set to 30 degree to 45 degree.
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, temperature sensing component 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 invention, infrared sensing device is arranged respectively in multiple storage spaces that rack is separated, each infrared sensing device can to its go out place in storage space article release infrared ray sense, thus accurately can 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.
Further, refrigerator of the present invention, by being optimized the position 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 invention 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 specific embodiment of the invention, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present invention more.
Detailed description of the invention
Fig. 1 is the schematic diagram of refrigerator according to an embodiment of the invention, in order to illustrate chamber interior structure between refrigerator storing, and not shown door body.This refrigerator can comprise in general manner: casing 110, rack component 120, temperature sensing component 130.
Fig. 2 is the schematic diagram of the casing 110 of refrigerator according to an embodiment of the invention, casing 110 comprises roof, diapire, rear wall and two, left and right sidewall and surrounds, 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.
Fig. 3 be refrigerator according to an embodiment of the invention storing between the schematic diagram of chamber interior parts, rack component 120 and temperature sensing component 130 are arranged in chamber interior between storing, and room between storing is divided into multiple storage space 140 by rack component 120.Wherein preferred structure is: rack component 120 comprises at least one horizontally disposed dividing plate, so that room between storing is vertically divided into multiple storage space 140.In figure 3, rack component 120 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 invention, the dividing plate quantity in rack component 120 and the quantity of storage space 140 can be configured in advance according to the volume of refrigerator and instructions for use.
Temperature sensing component 130 comprises multiple infrared sensing device, each infrared sensing device is arranged on casing 110 inwall of a storage space 140, and be configured to the infrared ray sensing article 150 release of placing in storage space 140, to determine the surface temperature of article 150.In the embodiment shown in fig. 3, the first infrared sensing device 131 is provided with in the first storage space, the second infrared sensing device 132 is provided with in the second storage space, in the 3rd storage space, be provided with the 3rd infrared sensing device 133, the quantity of the quantity basis storage space 140 of infrared sensing device sets.The infrared sensing device 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 temperature and temperature, be converted to the corresponding signal of telecommunication.
Each infrared sensing device is arranged at the inside sidewalls of adjacent door body pivotal axis in casing 110, and multiple infrared sensing device is vertically arranged in a straight line along one.It is less that this position is subject to external disturbance, is not easy by the operating influence of switch gate, and along vertically arranged in a straight line, can make the configuration unification more of infrared sensing device, the infrared signal be convenient to receiving processes.
Compared to infrared sensor of the prior art, the infrared sensing device in the temperature sensing component 130 in the present embodiment, can detect the infrared ray of whole storage space 140, instead of only to detection hot source point position.
Fig. 4 is the working state schematic representation of infrared sensing device in refrigerator according to an embodiment of the invention, and Fig. 5 is the position schematic diagram of the positive apparent direction of infrared sensing device in refrigerator according to an embodiment of the invention; And Fig. 6 is the position schematic diagram overlooking direction of infrared sensing device in refrigerator according to an embodiment of the invention.In order to improve the temperature sensing precision of infrared sensing device to chamber interior article between storing, meet and the requirement of zone refrigeration is carried out to room between refrigerator storing, inventor has carried out a large amount of tests to the installation site of infrared sensing device and has drawn, the preferred installation site of infrared sensing device and preferred configuration mode thereof.As can be seen from Fig. 4 to Fig. 6, each infrared sensing device is at the height l of its place storage space higher than 1/2nd places (more excellent scope be higher than or be positioned at 2/3rds of storage space whole height) of storage space whole height L, and the infrared receiver center line of each infrared sensing device is set to 70 degree to 150 degree (more excellent scope is 76 degree to 140 degree) relative to angular extensions alpha straight up; And the floor projection of the infrared receiver center line of each infrared sensing device and the angular range θ of its place sidewall are set to 30 degree to 60 degree (more excellent scope is 30 degree to 45 degree).Infrared sensing device towards selecting in the scope of above α and θ.
In addition, the angle β scope of the infrared receiver scope of infrared sensing device in perpendicular is set to 6 degree to 30 degree; And the angle γ scope of the infrared receiver scope of infrared sensing device in horizontal plane is set to 50 degree to 180 degree.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 installation site of above infrared sensing device can meet the sensing effect to temperature.Reduce external disturbance, and the storage space at its place carries out accurately detecting.Infrared sensing device can be selected flexibly according to the requirement of actual refrigerator in above scope.
Temperature sensing component 130 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 temperature sensing component 130 and storing, chamber interior environment temperature carries out refrigeration control, such as between storing, chamber interior environment temperature exceedes predetermined threshold and after 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 200 of storage space 140 zone refrigeration.This ducting assembly 200 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. 7 is the schematic explosive view of ducting assembly 200 in refrigerator according to an embodiment of the invention.This ducting assembly 200 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 diagram, there is the first confession air port 211 leading to the first storage space, the second confession air port 212 leading to the second storage space 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. 7, 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 actual utilization, can according to concrete instructions for use, by infrared sensing device, 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 temperature sensing component 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 200.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 the first infrared sensing device 131 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, infrared sensing device is arranged respectively in multiple storage spaces 140 that rack is separated, each infrared sensing device can to its go out the article release of placing in storage space 140 infrared ray sense, thus accurately can 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.In addition, by being optimized the position of infrared sensing device, can ensure that the infrared sensing region of infrared sensing device can cover whole storage space 140, making the thermal source determining indoor all positions between storing, avoiding being subject to external disturbance simultaneously.And the refrigerator of the present embodiment can be wind cooling refrigerator, ducting assembly 200 is utilized controllably the cooling flow coming from low-temperature receiver to be dispensed to multiple storage space 140 according to the surface temperature of article.Thus can, targetedly to occurring that the storage space 140 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 invention is illustrate and described herein detailed, but, without departing from the spirit and scope of the present invention, still can directly determine or derive other modification many or amendment of meeting the principle of the invention according to content disclosed by the invention.Therefore, scope of the present invention should be understood and regard as and cover all these other modification or amendments.