WO2016206218A1 - 冰箱和基于红外传感器的温度测量方法 - Google Patents

冰箱和基于红外传感器的温度测量方法 Download PDF

Info

Publication number
WO2016206218A1
WO2016206218A1 PCT/CN2015/090983 CN2015090983W WO2016206218A1 WO 2016206218 A1 WO2016206218 A1 WO 2016206218A1 CN 2015090983 W CN2015090983 W CN 2015090983W WO 2016206218 A1 WO2016206218 A1 WO 2016206218A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
value
infrared sensor
storage
sample
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.)
Ceased
Application number
PCT/CN2015/090983
Other languages
English (en)
French (fr)
Inventor
李春阳
朱立广
王铭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Co Ltd
Original Assignee
Qingdao Haier Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Co Ltd filed Critical Qingdao Haier Co Ltd
Publication of WO2016206218A1 publication Critical patent/WO2016206218A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • F25D29/003Arrangement or mounting of control or safety devices for movable devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00Means for sensing or measuring; Sensors therefor
    • F25D2700/12Sensors measuring the inside temperature
    • F25D2700/123Sensors measuring the inside temperature more than one sensor measuring the inside temperature in a compartment
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00Means for sensing or measuring; Sensors therefor
    • F25D2700/16Sensors measuring the temperature of products

Definitions

  • the present invention relates to a refrigeration apparatus, and more particularly to a refrigerator and a temperature measuring method based on an infrared sensor.
  • the refrigerator starts cooling when the temperature measured by the temperature sensor is higher than a preset value.
  • the temperature sensor measures the temperature
  • the measured value may fluctuate, which is deviated from the actual temperature inside the storage compartment, resulting in poor accuracy of the measured temperature. Cooling control using this temperature measurement results in a decrease in storage efficiency.
  • the user often accesses the stored items, and the newly placed items generally have a relatively high temperature, and the temperature of the articles is transmitted to the compartment through the heat radiation for a certain period of time, at the temperature of the articles. After being conducted to the environment inside the compartment, the temperature sensed by the temperature sensor rises, and then the cold source device such as a compressor is started to cool the compartment. Therefore, the prior art refrigerator refrigeration control technology has a slow response and cannot meet the requirements of the user for the refrigeration effect of the refrigerator.
  • Another further object of the present invention is to improve the storage effect of the refrigerator on articles.
  • a temperature measuring method based on an infrared sensor comprises: sensing the temperature in the preset area by using an infrared sensor; collecting the sensing result of the infrared sensor every predetermined time interval to obtain a temperature sampling value; obtaining a continuous predetermined number of temperature sampling values And filtering out the maximum sample value and the minimum sample value from the obtained temperature sample values; and calculating the average value of the temperature sample values after screening the maximum sample value and the minimum sample value, and using the average value as the temperature measurement of the infrared sensor value.
  • the step of acquiring a continuous predetermined number of temperature sample values comprises: sequentially storing the temperature sample values in a preset queue according to the sampling time, and the length of the queue is a predetermined number.
  • the step of sequentially storing the temperature sample values in the queue according to the sampling time determining whether the temperature sample value belongs to a preset normal value interval; if yes, storing the temperature sample value in the queue; if not, Set the temperature sample value to invalid data and filter it out.
  • the method further comprises: recording the number of occurrences of the invalid data; stopping the infrared sensor pair in the case that the continuous predetermined number of temperature sample values are invalid data The temperature in the area is sensed, and a temperature measurement abnormality warning signal is output.
  • the method further includes: correcting the measurement value by using a preset correction constant of the infrared sensor to obtain a temperature correction value.
  • the infrared sensor is disposed inside the storage compartment of the refrigerator to measure the temperature of the stored item in the indoor storage space of the storage compartment; and after obtaining the temperature correction value, the method further includes: using the temperature correction value as a pair The basis for temperature control in the storage space.
  • a refrigerator comprises: a box body defining a storage compartment inside; an infrared sensor disposed inside the storage compartment, configured to sense a temperature of an item stored in a preset storage space in the storage compartment; and a temperature calculation
  • the device is connected to the infrared sensor and configured to: collect the sensing result of the infrared sensor every predetermined time interval, obtain a temperature sampling value, obtain a continuous predetermined number of temperature sampling values, and screen out the obtained plurality of temperature sampling values The maximum sample value and the minimum sample value, and calculate an average value of the temperature sample values after the maximum sample value and the minimum sample value are screened to use the average value as the temperature measurement value of the infrared sensor.
  • the temperature calculation device includes: a data screening module configured to determine whether the temperature sampling value belongs to a preset normal value interval, and if not, set the temperature sampling value to invalid data and screen out; and the queue storage module is configured to If the temperature sampling value belongs to the preset normal value interval, the temperature sampling values are sequentially stored in the preset queue according to the sampling time, and the length of the queue is a predetermined number.
  • the refrigerator further includes: a fault prompting device configured to: record the number of occurrences of the invalid data, and stop the infrared sensor to perform the temperature in the preset area when the continuous predetermined number of temperature sample values are invalid data. Sensing and outputting a temperature measurement abnormality warning signal.
  • a fault prompting device configured to: record the number of occurrences of the invalid data, and stop the infrared sensor to perform the temperature in the preset area when the continuous predetermined number of temperature sample values are invalid data. Sensing and outputting a temperature measurement abnormality warning signal.
  • the temperature calculation device further includes: a data correction module configured to correct the measurement value using a preset correction constant of the infrared sensor to obtain a temperature correction value.
  • a data correction module configured to correct the measurement value using a preset correction constant of the infrared sensor to obtain a temperature correction value.
  • the storage compartment is partitioned into a plurality of storage spaces, each of which is provided with one or more infrared sensors for measuring the temperature of the stored articles therein; and the temperature calculation device, and The infrared sensors are respectively connected and configured to calculate the temperatures of the plurality of storage spaces respectively The correction value is used as the basis for temperature control of multiple storage spaces.
  • the refrigerator further includes: a split air supply device configured to distribute the cooling airflow from the cold source to the plurality of storage spaces; and a refrigeration control component configured to respectively adjust the temperature correction value of each storage space Comparing with a preset regional cooling on temperature threshold value of each storage space, setting a cooling state identifier corresponding to a storage space whose temperature correction value is greater than a regional cooling open temperature threshold to be activated, and driving the split air supply device to operate to A state in which the cooling airflow is provided to the storage space identified as being activated by the cooling state.
  • a split air supply device configured to distribute the cooling airflow from the cold source to the plurality of storage spaces
  • a refrigeration control component configured to respectively adjust the temperature correction value of each storage space Comparing with a preset regional cooling on temperature threshold value of each storage space, setting a cooling state identifier corresponding to a storage space whose temperature correction value is greater than a regional cooling open temperature threshold to be activated, and driving the split air supply device to operate to A state in which the cooling airflow is provided to
  • the infrared sensor-based temperature measuring method of the invention uses the temperature of the preset area of the infrared sensor to perform sensing, and performs screening and average value calculation on a plurality of sampling values, thereby avoiding fluctuation of the measured value of the infrared sensor to the measurement accuracy.
  • the impact is improved, and the accuracy of the temperature measurement is improved, so that the measured value directly reflects the actual temperature of the items in the preset area, which provides an accurate control basis for subsequent related control.
  • the refrigerator of the present invention uses the above-mentioned measurement value accurately reflecting the temperature of the stored articles in the interior of the refrigerator as the control basis for the storage space partition cooling, and can accurately determine the position and temperature of the indoor heat source between the refrigerators, and facilitate the situation according to the heat source. Control to provide the best storage environment for food in the refrigerator and reduce nutrient loss of food.
  • FIG. 1 is a schematic diagram of a temperature measurement method based on an infrared sensor according to an embodiment of the present invention
  • FIG. 2 is a flow chart of a method for measuring temperature based on an infrared sensor, in accordance with one embodiment of the present invention
  • Figure 3 is a schematic structural view of a refrigerator in accordance with one embodiment of the present invention.
  • FIG. 4 is a schematic block diagram of a control unit of a refrigerator in accordance with one embodiment of the present invention.
  • FIG. 5 is a schematic block diagram of a temperature calculation device in a refrigerator according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a refrigeration system of a refrigerator in accordance with one embodiment of the present invention.
  • FIG. 7 is a schematic structural view of a refrigeration system of a refrigerator in accordance with one embodiment of the present invention.
  • Embodiments of the present invention provide a temperature measurement method based on an infrared sensor.
  • 1 is a schematic diagram of a temperature measurement method based on an infrared sensor according to an embodiment of the present invention, the temperature measurement method based on the infrared sensor includes:
  • Step S102 using an infrared sensor to sense a temperature in a preset area
  • Step S104 collecting the sensing result of the infrared sensor every predetermined time interval to obtain a temperature sampling value
  • Step S106 acquiring a continuous predetermined number of temperature sample values, and screening out the maximum sample value and the minimum sample value from the obtained temperature sample values;
  • Step S108 calculating an average value of the temperature sample values after screening the maximum sample value and the minimum sample value, and using the average value as the temperature measurement value of the infrared sensor.
  • the infrared sensor used in the method of the embodiment does not emit infrared rays, but passively receives the infrared rays and the background infrared rays emitted by the articles in the sensing range, and directly senses the temperature of the articles inside the preset region, and converts them into corresponding electrical signals.
  • the infrared sensor can quickly measure the temperature by directly receiving the infrared rays emitted by the article, and does not need the article to conduct its temperature around the temperature sensor, so as to sense the temperature change and the response speed is fast. , high accuracy.
  • the infrared sensor can limit the rectangular field of view by setting the infrared guiding component, and improve the detection accuracy by limiting the detection orientation to accurately detect the preset area.
  • the sampling interval of step S104 can be set according to its use environment and temperature measurement requirements. For example, when measuring the storage space of the refrigerator, the sampling interval time can be set to 0.1 s.
  • Step S106 can utilize a preset storage queue to achieve acquisition of a predetermined number of temperature sample values, and screening of the maximum sample value and the minimum sample value.
  • the specific process may include: sequentially storing the temperature sampling values in a preset queue according to the sampling time, and the length of the queue is a predetermined number. For example, an example is: collecting one value every 0.1s, after collecting ten values, sorting ten numbers, removing one maximum sample value, removing a minimum sample value, and averaging the remaining eight values as temperature Measurements.
  • the oldest collected value in the current storage queue is overwritten, the new sample value is put into the queue, and the maximum sample value and the minimum sample value are rescreened, and the remaining 8 values are The average is taken as a subsequent temperature measurement.
  • the step of obtaining the temperature sampling value is After that, it can be confirmed that the temperature sampling value belongs to the preset normal value interval, and the temperature sampling value within the normal value interval is recorded, the sampling value exceeding the normal value interval is set as invalid data, and sieved; and if the predetermined number is consecutive The temperature sampling values are all invalid data, generate a temperature measurement abnormality prompt signal, and stop the infrared sensor to sense the temperature in the preset area.
  • the above normal value interval can be set according to the limit temperature of the preset area to be tested.
  • the normal value interval can be set to -40 to 60 degrees Celsius.
  • the temperature of the compartment generally does not exceed this value range.
  • the temperature sampling value exceeds this range, it can be considered that the measurement or acquisition process of the infrared sensor is abnormal. Such abnormal data needs to be screened to avoid interference with normal data. .
  • the infrared sensor has a fast response speed, but there is generally an absolute error in the temperature measurement accuracy, and the absolute error is in the range of ⁇ 3 °C.
  • the absolute error is substantially a fixed value
  • the method may further include: correcting the measured value by using a preset correction constant of the infrared sensor to obtain a temperature correction value.
  • the correction constant can be obtained by comparing the measured values of the infrared sensor and the standard temperature sensor and saving. Thereby, the absolute error can be effectively eliminated, and the measurement accuracy of the infrared sensor is further improved.
  • FIG. 2 is a flow chart of a method for measuring temperature based on an infrared sensor according to an embodiment of the present invention, the process including:
  • step S202 the acquisition starts and the parameters are initialized.
  • Step S204 sampling the sensing result of the infrared sensor to obtain a temperature sampling value T1;
  • Step S206 it is determined whether T1 belongs to the normal value interval, that is, whether it meets -40 ⁇ T1 ⁇ 60, if yes, it is determined as normal data, step S208 is performed, and if it is denied abnormal data, step S218 is performed;
  • step S210 it is determined whether the number of collected values meets the requirement, that is, whether s>S is satisfied; if yes, the acquisition is completed, step S212 is performed, and if the next acquisition is performed, step S218 is performed;
  • Step S222 it is determined whether a continuous predetermined number of sample values are invalid data, that is, it is determined whether Err>S is present, if step S222 is performed, if not, return to step S204;
  • step S224 an abnormality prompt is output, and the measurement is stopped.
  • the temperature correction value IR' calculated by the above process is the final measurement result, which eliminates the measurement fluctuation and the absolute error of the infrared sensor, and more accurately reflects the actual temperature of the preset area.
  • the temperature of the preset area is sensed, and by filtering and averaging the plurality of sample values, the measurement value fluctuation of the infrared sensor is avoided as much as possible to the measurement accuracy band.
  • the influence of the temperature increases the accuracy of the temperature measurement, so that the measured value directly reflects the actual temperature of the items inside the preset area, which provides an accurate control basis for subsequent related control.
  • the infrared sensor-based temperature measuring method of the present embodiment is preferably applied to temperature measurement of a refrigerator storage compartment.
  • FIG. 3 is a schematic structural view of a refrigerator according to an embodiment of the present invention
  • FIG. 4 is a schematic block diagram of a control unit of the refrigerator according to an embodiment of the present invention.
  • the refrigerator may generally include a case 110, an infrared sensor 130, and a temperature calculation device 160.
  • the box body 110 includes a top wall, a bottom wall, a rear wall and two left and right side walls.
  • a door body (not shown) is disposed in front of the box body 110, and the door body can be connected to the side wall by a pivot structure.
  • the interior of the tank 110 defines a storage compartment (eg, a refrigerating compartment). The compartment can be divided into a plurality of storage spaces 140.
  • the infrared sensor 130 is disposed inside the storage compartment and is configured to sense the temperature of the stored item in the indoor storage space of the storage compartment.
  • the number of infrared sensors 130 is set in accordance with the number of storage spaces 140.
  • each storage space 140 can be provided with an infrared sensor 130.
  • an infrared sensor 130 may The overall situation of the storage space 140 cannot be fully sensed, and a plurality of infrared sensors 130 may be disposed in one storage space 140.
  • a preferred manner is to arrange two infrared sensors respectively disposed on the two side walls of the box. On the inside, the temperature of the storage space 140 is collectively measured.
  • Another way of configuring the infrared sensor 130 is to use the transmission (screw drive, timing belt drive, etc.) to drive the infrared sensor 130 to move in a plurality of storage spaces to measure the temperatures of the plurality of storage spaces 140, respectively. .
  • the inventor has conducted a large number of tests on the installation position of the infrared sensing gas 130, and the infrared sensor 130 is obtained.
  • the infrared sensor 130 is at a height of one-half of the height of the storage space 140 at its height (more preferably two-thirds of the overall height of the storage space 140), each of which is higher than or equal to two-thirds of the overall height of the storage space 140.
  • the infrared receiving center line of the infrared sensors 130 is set at an angle ranging from 70 degrees to 150 degrees with respect to the vertical direction (more preferably, the range is 76 degrees to 140 degrees); and the level of the infrared receiving center line of each of the infrared sensors 130
  • the angle between the projection and the side wall of the projection is set to 30 degrees to 60 degrees (more preferably 30 degrees to 45 degrees).
  • the infrared sensor 130 does not emit infrared rays, but passively receives infrared rays and background infrared rays emitted by the articles in the sensing range, directly senses the change region and temperature of the temperature of the articles in the storage space 140, and converts them into corresponding electrical signals.
  • the storage compartment of the refrigerator of the present invention may be partitioned into a plurality of storage spaces 140.
  • the rack assembly 120 separates the storage compartment into a plurality of storage spaces 140.
  • the shelf assembly 120 includes at least one horizontally disposed partition to divide the compartment into a plurality of storage spaces 140 in a vertical direction.
  • the rack assembly 120 includes a first partition, a second partition, and a third partition, wherein a first storage space is formed above the first partition, and between the first partition and the second partition A second storage space is formed, and a third storage space is formed between the second partition and the third partition.
  • the number of partitions in the rack assembly 120 and the number of storage spaces 140 may be pre-configured according to the volume of the refrigerator and the requirements for use.
  • Each storage space 140 is provided with one or more infrared sensors 130 for measuring the temperature of the items stored therein.
  • the temperature calculation device 160 is connected to the infrared sensor 130 and configured to: collect the sensing result of the infrared sensor 130 once every predetermined time interval, obtain a temperature sampling value, obtain a continuous predetermined number of temperature sampling values, and obtain a plurality of temperatures from the obtained temperature. Sampling the maximum sample value and the minimum sample value, and calculating the average value of the temperature sample values after filtering the maximum sample value and the minimum sample value to The average value is taken as the temperature measurement value of the infrared sensor.
  • the temperature calculation device 160 may separately perform temperature calculations on the infrared sensors 130 in the plurality of storage spaces to obtain actual temperatures of the items stored in the plurality of storage spaces, respectively.
  • FIG. 5 is a schematic block diagram of a temperature calculation device 160 in a refrigerator in accordance with one embodiment of the present invention.
  • the temperature calculation device 160 can be used to perform the infrared sensor-based temperature measurement method of the above-described embodiments to derive a temperature value reflecting the stored state of the stored item in the storage space 140.
  • the temperature calculation device 160 can include a data screening module 162, a queue storage module 164, and a data modification module 166.
  • the data screening module 162 can determine whether the temperature sample value belongs to a preset normal value interval (for example, set to -40 to 60 degrees Celsius), and if not, set the temperature sample value to invalid data and filter out.
  • a preset normal value interval for example, set to -40 to 60 degrees Celsius
  • the queue storage module 164 can be configured to store the temperature sample values in a preset queue according to the sampling time if the temperature sampling value belongs to the preset normal value interval, and the length of the queue is a predetermined number.
  • the temperature calculation device 160 can utilize the storage queue for data screening and average calculation.
  • the data correction module 166 is configured to correct the measured value using a preset correction constant of the infrared sensor 130 to obtain a temperature correction value. Thereby the absolute error of the infrared sensor 130 is eliminated.
  • the fault prompting device 180 can be configured to: record the number of occurrences of the invalid data, stop the infrared sensor to sense the temperature in the preset area, and output the temperature measurement abnormality if the consecutive predetermined number of temperature sample values are invalid data. Prompt signal.
  • the abnormality prompt signal may be displayed through a display screen of the refrigerator or through a network to a mobile terminal used by a user pre-bound with the refrigerator.
  • one or more infrared sensors 130 for measuring the temperature of the stored articles therein may be disposed in each of the storage spaces 140, respectively.
  • the temperature calculation device 160 is respectively connected to the infrared sensors 130 respectively arranged in the plurality of storage spaces 140.
  • the temperature calculation device 160 can separately calculate the temperature correction values of the plurality of storage spaces as the basis for separately controlling the temperature of the plurality of storage spaces 140.
  • the temperature calculation device 160 may calculate a difference between the maximum value and the minimum value among the temperature values measured by the plurality of infrared sensing devices of the same storage space 140, according to the difference.
  • the magnitude of the value determines the maximum weight coefficient k and the minimum weight coefficient m, and the maximum weight coefficient k and the minimum weight coefficient m are respectively used as the weight coefficients of the temperature maximum value and the temperature minimum value, and the temperature maximum value and the temperature minimum value are respectively performed.
  • the weighted sum is calculated and the result of the weighted sum calculation is taken as the sensed temperature value of the storage space 140.
  • the refrigerator of this embodiment may further include: a split air supply device configured to distribute the cooling airflow from the cold source to the plurality of storage spaces 140.
  • the refrigeration control component 170 can be configured to respectively compare the temperature correction value of each storage space 140 with a predetermined regional cooling on temperature threshold of each storage space 140, and to store the temperature correction value greater than the regional refrigeration on temperature threshold.
  • the cooling state indicator corresponding to the object space is set to be activated, and the driving split air supply device is operated to provide a state of cooling airflow to the storage space indicated as the cooling state.
  • FIG. 6 is a schematic diagram of a refrigeration system of a refrigerator according to an embodiment of the present invention
  • FIG. 7 is a schematic structural view of a refrigeration system of a refrigerator according to an embodiment of the present invention.
  • the refrigeration system includes: a duct assembly, a compressor, a refrigerating damper 250, a fan 230, and the like.
  • the refrigerator can form a refrigeration cycle via a refrigerant pipe by means of an evaporator, a compressor, a condenser, a throttle element, and the like, and after the compressor is started, the evaporator releases the cooling amount.
  • the evaporator can be placed in the evaporator chamber.
  • the air cooled by the evaporator is sent to the storage chamber via the fan 230.
  • the interior of the storage compartment of the refrigerator can be divided into a greenhouse, a refrigerating compartment and a freezing compartment, wherein the uppermost layer of the storage compartment is a refrigerating compartment, the lower compartment of the refrigerating compartment is a greenhouse, and the lower compartment of the greenhouse is a freezing compartment, and the evaporator compartment can be set.
  • the fan 230 is disposed at an outlet above the evaporator chamber.
  • the supply air path of the air cooled by the evaporator includes a temperature-changing supply air path connected to the variable greenhouse for supplying air to the greenhouse, and a freezing supply air path for connecting the freezer to the freezer compartment, And a refrigerating supply air passage connected to the refrigerating compartment for supplying air to the refrigerating compartment.
  • the air duct assembly is a wind path system that supplies air to the refrigerating chamber, and the air duct assembly includes: a duct bottom plate 210, a shunt air blowing device 220, and a fan 230.
  • the air duct floor 210 defines a plurality of air passages 214 respectively leading to the plurality of storage spaces 140, and each of the air ducts 214 leads to a different storage space 140, for example, in the embodiment shown in FIG.
  • the branch air supply device 220 is disposed in the refrigerating supply air path, and the refrigerating supply air path is formed on the back surface of the refrigerating chamber, and the shunt air supply device 220 includes an air inlet 221 connected to a cold source (for example, an evaporator chamber) and respectively A plurality of distribution ports 222 connected by the air path 214.
  • the dispensing ports 222 are connected to different air paths 214, respectively.
  • the shunting device 220 can control the cold air from the cold source generated by the fan 230 to be distributed to different dispensing ports 222 through the air inlet 221, thereby entering different storage spaces of the refrigerating chamber through different air paths 214. 140.
  • the shunting air supply device 220 can centrally distribute the refrigerating airflow from the cold source instead of separately providing different air ducts for the different storage spaces 140, thereby improving the cooling efficiency.
  • the shunting device 220 may include a housing 221, an adjusting member 224, and a cover plate 225.
  • the casing 221 is formed with an air inlet 221 and a distribution port 222, and the cover plate 225 is assembled with the casing 221 to form a branch air supply chamber.
  • the adjusting member 224 is disposed in the shunt air supply chamber.
  • the adjusting member 224 has at least one shielding portion 226.
  • the shielding portion 226 is movably disposed in the housing 221 and configured to control the plurality of dispensing openings 222 to adjust the respective air outlet areas of the plurality of dispensing openings 222. .
  • the air supply of the fan 230 can be distributed to the different storage spaces 140 through the adjustment member 224.
  • the split air supply device 220 can realize up to seven air supply states, for example, can be included for the first air supply port 211.
  • the distribution port 222 is separately opened for separately opening to the distribution port 222 of the second air supply port 212 for separately opening to the distribution port 222 of the third air supply port 213 for the distribution port to the first air supply port 211 and the second air supply port 212
  • the opening 222 is simultaneously opened, and the distribution ports 222 of the first air supply port 211 and the third air supply port 213 are simultaneously opened, and the distribution ports 222 to the second air supply port 212 and the third air supply port 213 are simultaneously opened and supplied to the first air supply port. 211.
  • the distribution ports 222 for the second air supply port 212 and the third air supply port 213 are simultaneously opened.
  • the branch air supply device 220 may be provided with two distribution ports, and at the same time, three air supply states may be provided.
  • the adjusting member 224 rotates, and the angle of rotation is determined according to the required air volume, and the guiding port formed between the shielding portions 226 is aligned with the corresponding dispensing opening 222.
  • the housing 221 is provided with a motor 227, two stop posts 228, and a positioning seat recess 243 in the shunt air supply chamber.
  • the function of the stop post 228 is that the movement of the adjusting member 224 is more accurate during the operation of the motor 227. And each time the power is applied or after a period of time, the adjustment member 224 is moved to the starting stop post 228, and is rotated to the designated rotational position.
  • the function of the positioning seat recess 243 is to ensure that the adjustment member 224 is positioned at an angular position of every 30 degrees of rotation.
  • the adjusting member 224 is provided with a coil spring 229 (this coil spring 229 can also be replaced by a torsion spring), a weight 241 and a positioning pin 245.
  • a section of the disc spring piece 229 is fixed to the cover plate 225, and the other end is biased to apply a reverse force as the adjusting member 224 is operated, and a certain biasing force is always applied to the adjusting member 224, thereby suppressing the stepping by the direct current.
  • the pivot portion has a weight portion extending in a direction radially opposite to the body of the adjusting member 224, and a weight 241 is disposed at a distal end of the weight portion to eliminate the bias torque.
  • the positioning pin 245 is movable up and down (by a compression spring) to the adjustment member 224.
  • the housing 221 is provided with a positioning seat recess 243 that cooperates with it.
  • the refrigerator of the embodiment is exemplified by a compartment having three storage spaces 140.
  • the number of infrared sensing components 130, air path 214, distribution port 222, and air supply port can be set according to specific use requirements to meet the requirements of different refrigerators. For example, according to the above description, it is easy to draw a blowing system of a refrigerating compartment having two storage spaces 140.
  • the refrigeration control assembly 170 drives the shunt blower to operate to provide a state of refrigerated airflow to the storage space 140 identified as being activated by the refrigeration state.
  • the control is more precise, and the refrigeration control is ensured according to the storage condition of the storage space 140, thereby avoiding waste of electric energy caused by cooling of the entire compartment.
  • the refrigerator of the embodiment can also quickly cool the items with higher temperature, reduce the influence of the higher temperature items on other items already stored, improve the storage effect of the refrigerator freezer, and reduce the nutrient loss of the food.
  • the above-mentioned refrigerator uses an infrared sensor as a temperature measuring component, and optimizes the sampling of the measured value and the calculation process, so that the temperature measurement value is more accurate, and it is convenient to control according to the condition of the heat source, thereby providing an optimal storage environment for the food in the refrigerator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

一种冰箱和基于红外传感器(130)的温度测量方法。其中基于红外传感器(130)的温度测量方法包括:利用红外传感器(130)对预设区域内的温度进行感测;每间隔预定时间采集一次红外传感器(130)的感测结果,得到温度采样值;获取连续预定数量的温度采样值,并从获取到的温度采样值中筛除最大采样值和最小采样值;以及计算筛除最大采样值和最小采样值后的温度采样值的平均值,并将平均值作为红外传感器(130)的温度测量值。利用本发明的方案可以避免红外传感器的测量值波动给测量准确度带来的影响,提高了温度测量的准确性,使得测量值直接反映预设区域内部物品的实际温度,为后续相关控制提供了准确的控制依据。

Description

冰箱和基于红外传感器的温度测量方法 技术领域
本发明涉及制冷设备,特别是涉及一种冰箱和基于红外传感器的温度测量方法。
背景技术
现有冰箱通常利用布置于间室内部的温度传感器感测其布置位置周围的温度,将该温度作为制冷控制的依据。
然而,使用这种控制方式进行冰箱控制时,在温度传感器测量的温度高于预设值时,冰箱启动制冷。然而温度传感器在测量温度时,测量值可能会出现波动,与储物间室内部的实际温度存在偏差,造成测量温度的准确度较差。使用该温度测量值进行制冷控制会导致储物效果下降。
另外在冰箱的实际使用过程中,使用者会经常对所存物品进行存取,刚放入的物品一般温度较高,物品的温度通过热辐射的方式传导至间室需要一定的时间,在物品温度传导至间室内部环境后,温度传感器感测的温度才会上升,然后启动压缩机等冷源装置对间室进行制冷。因此现有技术的冰箱制冷控制技术,响应较慢,不能满足使用者对冰箱制冷效果的要求。
发明内容
本发明的一个进一步目的是要提高温度的测量精度,提供一种冰箱和基于红外传感器的温度测量方法。
本发明的另一进一步目的是提高冰箱对物品的储藏效果。
根据本发明的一个方面,提供了一种基于红外传感器的温度测量方法。该基于红外传感器的温度测量方法包括:利用红外传感器对预设区域内的温度进行感测;每间隔预定时间采集一次红外传感器的感测结果,得到温度采样值;获取连续预定数量的温度采样值,并从获取到的温度采样值中筛除最大采样值和最小采样值;以及计算筛除最大采样值和最小采样值后的温度采样值的平均值,并将平均值作为红外传感器的温度测量值。
可选地,获取连续预定数量的温度采样值的步骤包括:将温度采样值按照采样时间依次存储于预设的队列中,队列的长度为预定数量。
可选地,在将温度采样值按照采样时间依次存储于队列中的步骤之前包括:判断温度采样值是否属于预设的正常数值区间;若是,则将温度采样值存储于队列中;若否,将温度采样值设置为无效数据并筛除。
可选地,在将温度采样值设置为无效数据并筛除的步骤之后还包括:记录无效数据的出现次数;在连续预定数量的温度采样值均为无效数据的情况下,停止红外传感器对预设区域内的温度进行感测,并输出温度测量异常提示信号。
可选地,在得出红外传感器的温度测量值之后还包括:使用红外传感器的预置的修正常数对测量值进行修正,以得到温度修正值。
可选地,红外传感器设置冰箱的储物间室内部,以对储物间室内预设储物空间中存储物品的温度进行测量;并且在得到温度修正值之后还包括:将温度修正值作为对储物空间进行温度控制的依据。
根据本发明的另一个方面,还提供了一种冰箱。该冰箱包括:箱体,内部限定有储物间室;红外传感器,设置于储物间室内部,配置成对储物间室内预设储物空间中存储物品的温度进行感测;以及温度计算装置,与红外传感器连接,并配置成:每间隔预定时间采集一次红外传感器的感测结果,得到温度采样值,获取连续预定数量的温度采样值,从获取到的多个温度采样值中筛除最大采样值和最小采样值,并且计算筛除最大采样值和最小采样值后的温度采样值的平均值,以将平均值作为红外传感器的温度测量值。
可选地,温度计算装置包括:数据筛选模块,配置成判断温度采样值是否属于预设的正常数值区间,若否,将温度采样值设置为无效数据并筛除;以及队列存储模块,配置成若温度采样值属于预设的正常数值区间,则将温度采样值按照采样时间依次存储于预设的队列,队列的长度为预定数量。
可选地,上述冰箱还包括:故障提示装置,配置成:记录无效数据的出现次数,在连续预定数量的温度采样值均为无效数据的情况下,停止红外传感器对预设区域内的温度进行感测,并输出温度测量异常提示信号。
可选地,温度计算装置还包括:数据修正模块,配置成使用红外传感器的预置的修正常数对测量值进行修正,以得到温度修正值。
可选地,储物间室被分隔为多个储物空间,每个储物空间内分别设置有一个或多个用于测量其内存储物物品的温度的红外传感器;并且温度计算装置,与红外传感器分别连接,并配置成:分别计算得出多个储物空间的温度 修正值,以作为对多个储物空间分别进行温度控制的依据。
可选地,上述冰箱还包括:分路送风装置,配置成将来自于冷源的制冷气流分配至多个储物空间;以及制冷控制组件,配置成分别将每个储物空间的温度修正值与每个储物空间各自预设的区域制冷开启温度阈值进行比较,将温度修正值大于区域制冷开启温度阈值的储物空间对应的制冷状态标识设置为启动,并且驱动分路送风装置运行至向制冷状态标识为启动的储物空间提供制冷气流的状态。
本发明的基于红外传感器的温度测量方法,利用红外传感器的预设区域的温度进行感测,并通过对多个采样值进行筛选和平均值计算,尽量避免红外传感器的测量值波动给测量准确度带来的影响,提高了温度测量的准确性,使得测量值直接反映预设区域内部物品的实际温度,为后续相关控制提供了准确的控制依据。
进一步地,本发明的冰箱使用上述准确反映冰箱间室内部储存物品温度的测量值作为储物空间分区制冷的控制依据,可以精确地确定出冰箱间室内热源的位置和温度,便于根据热源的情况进行控制,为冰箱内的食物提供最佳的储存环境,减少食物的营养流失。
根据下文结合附图对本发明具体实施例的详细描述,本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解,这些附图未必是按比例绘制的。附图中:
图1是根据本发明一个实施例的基于红外传感器的温度测量方法的示意图;
图2是根据本发明一个实施例的基于红外传感器的温度测量方法的流程图;
图3是根据本发明一个实施例的冰箱的示意性结构图;
图4是根据本发明一个实施例的冰箱的控制部件的示意框图;
图5是根据本发明一个实施例的冰箱中温度计算装置的示意框图;
图6是根据本发明一个实施例的冰箱的制冷系统的示意图;以及
图7是根据本发明一个实施例的冰箱的制冷系统的结构示意图。
具体实施方式
本发明实施例提供了一种基于红外传感器的温度测量方法。图1是根据本发明一个实施例的基于红外传感器的温度测量方法的示意图,该基于红外传感器的温度测量方法包括:
步骤S102,利用红外传感器对预设区域内的温度进行感测;
步骤S104,每间隔预定时间采集一次红外传感器的感测结果,得到温度采样值;
步骤S106,获取连续预定数量的温度采样值,并从获取到的温度采样值中筛除最大采样值和最小采样值;
步骤S108,计算筛除最大采样值和最小采样值后的温度采样值的平均值,并将平均值作为红外传感器的温度测量值。
本实施例的方法中使用的红外传感器不发射红外线,而是被动接收所感测范围内物品发射的红外线及背景红外线,直接感知预设区域内部物品的温度,转换为相应的电信号。相比于现有技术中的温度传感器,红外传感器可以通过直接接收物品发射的红外线快速地测量温度,而不需要物品将其温度传导至温度传感器周围后,才能感测温度的变化,响应速度快,准确程度高。红外传感器可以通过设置红外导向部件限制出矩形视野,通过限制检测方位提高检测精度,以对预设区域进行精确探测。
步骤S104的采样间隔时间可以根据其使用环境和测温要求进行设置,例如在对冰箱储物空间进行测量时,可以将采样间隔时间设置为0.1s。
步骤S106可以利用预设的存储队列来实现预定数量的温度采样值的获取,以及最大采样值和最小采样值的筛除。具体流程可以包括:将温度采样值按照采样时间依次存储于预设的队列中,队列的长度为预定数量。例如一种实例为:每0.1s采集一个数值,采集完十个数值后,对十个数进行排序,去掉一个最大采样值,去掉一个最小采样值,剩下的8个值的平均值作为温度测量值。在后续获取一个新的采样值后,把当前存储队列中最早的采集值进行覆盖,把新的采样值放入队列中,重新筛除最大采样值和最小采样值,剩下的8个值的平均值作为后续的温度测量值。
为了避免红外传感器的测量结果出现异常,在获取温度采样值的步骤之 后还可以确认温度采样值属于预设的正常数值区间,并记录属于正常数值区间内的温度采样值,将超出正常数值区间内的采样值设置为无效数据,并筛除;并且如果连续预定数量的温度采样值均为无效数据,生成温度测量异常提示信号,并停止红外传感器对预设区域内的温度进行感测。
以上正常数值区间可以根据被测的预设区域的极限温度进行设置,例如对于冰箱间室,可将正常数值区间设置为-40至60摄氏度。间室的温度一般不会超出这一数值区间,在出现温度采样值超出这一范围,可认为红外传感器的测量或者采集过程出现异常,这样的异常数据需要筛除,以避免对正常数据产生干扰。
另外,红外传感器响应速度快,但是测温精度方面一般存在绝对误差,该绝对误差在±3℃范围内。但是对于每个红外传感器,绝对误差基本上为一个定值,在步骤S108之后还可以包括:使用红外传感器的预置的修正常数对测量值进行修正,以得到温度修正值。该修正常数可以通过对红外传感器以及标准温度传感器的测量值进行比对得出,并保存。从而可以有效地消除绝对误差,进一步提高红外传感器的测量精度。
图2是根据本发明一个实施例的基于红外传感器的温度测量方法的流程图,该流程包括:
步骤S202,采集开始,参数初始化。初始化的内容包括:对温度采集值存储队列进行初始化,例如将一个长度是S的存储队列进行清空,S为上述预定数量,一般可以设置为10或其他预设值,存储队列的元素可以记为IR(0)、IR(1)、IR(2)、……IR(S-1)、IR(S);对队列序列标识初始化,s=0;报警提示标识初始化,Err=0。
步骤S204,对红外传感器的感测结果进行采样,得到温度采样值T1;
步骤S206,判断T1是否属于正常数值区间,即是否满足-40<T1<60,若是,认定为正常数据,执行步骤S208,若否认定为异常数据,执行步骤S218;
步骤S208,将Err进行清零,Err=0;
步骤S210,判断采集值的数量是否达到要求,即判断是否满足s>S;若是,采集完成,执行步骤S212,若否进行下一次采集,执行步骤S218;
步骤S212,对存储队列进行整理,即IR(0)=IR(1),IR(1)=IR(2),……IR(S-1)=IR(S),IR(S)=T1,形成循环存储队列,也就是覆盖最初的数值;
步骤S214,对IR(0)、IR(1)……IR(S)进行排序,筛除最小采样值min和最大采样值max,剩余S-2个数值取平均值IR,计算公式为IR=(IR(0)+IR(1)+……+IR(S)-max-min)/(S-2);
步骤S216,使用红外传感器的预置的修正常数对测量值进行修正,以得到温度修正值,IR’=IR+IR(amend),其中IR(amend)为预先通过比对红外传感器以及标准温度传感器的测量值得出的修正常数。
步骤S218,进入下一次感测结果采集,IR(s)=T1,s=s+1,返回执行S604;
步骤S220,报警提示标识累加,Err=Err+1;
步骤S222,判断是否出现连续预定数量的采样值均为无效数据的情况,即判断是否出现Err>S的情况,若是执行步骤S222,若否,返回执行步骤S204;
步骤S224,输出异常提示,停止测量。
通过以上流程计算的温度修正值IR’,即为最终的测量结果,该数值消除了红外传感器的测量波动以及绝对误差,更准确地反映了预设区域的实际温度。
利用本实施例的基于红外传感器的温度测量方法,对预设区域的温度进行感测,并通过对多个采样值进行筛选和平均值计算,尽量避免红外传感器的测量值波动给测量准确度带来的影响,提高了温度测量的准确性,使得测量值直接反映预设区域内部物品的实际温度,为后续相关控制提供了准确的控制依据。本实施例的基于红外传感器的温度测量方法优选适用于对冰箱储物间室的温度测量。
图3是根据本发明一个实施例的冰箱的示意性结构图,图4是根据本发明一个实施例的冰箱的控制部件的示意框图。该冰箱一般性地可以包括:箱体110、红外传感器130,温度计算装置160。
箱体110包括顶壁、底壁、后壁以及左右两个侧壁围成,箱体110前方设置门体(图中未示出),门体可以采用枢轴结构连接于侧壁上。箱体110内部限定有储物间室(例如冷藏室)。间室可被分隔为多个储物空间140。
红外传感器130设置于储物间室内部,配置成对储物间室内预设储物空间中存储物品的温度进行感测。红外传感器130的数量依据储物空间140的数量进行设定。一般而言每个储物空间140可以设置一个红外传感器130。在储物空间140具有情况下较大的宽度的情况下,一个红外传感器130可能 无法全面地感测到储物空间140的整体情况,可以在一个储物空间140中设置多个红外传感器130,一种优选的方式为布置两个红外传感器分别布置于箱体两个侧壁的内侧,共同对储物空间140进行温度测量。
红外传感器130的配置的另一种方式为:利用传动装置(螺杆传动、同步带传动等)带动红外传感器130在多个储物空间中运动,以分别对多个储物空间140的温度进行测量。
为了提高红外传感器130对储物空间140内部物品的温度感测精度,满足对冰箱间室进行制冷的要求,发明人对红外传感气130的安装位置进行了大量的测试得出,红外传感器130的优选安装位置及其优选的配置方式。红外传感器130在其所在储物空间140的高度高于储物空间140整体高度的二分之一处(更优的范围为高于或位于储物空间140整体高度的三分之二),每个红外传感器130的红外接收中心线相对于竖直向上的角度范围设置为70度至150度(更优的范围为76度至140度);以及每个红外传感器130的红外接收中心线的水平投影与其所在侧壁的夹角范围设置为30度至60度(更优的范围为30度至45度)。
红外传感器130不发射红外线,而是被动接收所感测范围内物品发射的红外线及背景红外线,直接感知储物空间140内物品温度的变化区域及温度,转换为相应的电信号。
本发明的冰箱的储物间室可以被分隔为多个储物空间140。例如搁物架组件120将储物间室分隔为多个储物空间140。其中一种优选结构为:搁物架组件120包括至少一个水平设置的隔板,以将间室沿竖直方向分隔为多个储物空间140。在图1中,搁物架组件120包括第一隔板、第二隔板、第三隔板,其中第一隔板上方形成第一储物空间、第一隔板与第二隔板之间形成第二储物空间、第二隔板与第三隔板之间形成第三储物空间。在本发明的另一些实施例中,搁物架组件120中的隔板数量以及储物空间140的数量,可以根据冰箱的容积以及使用要求预先进行配置。每个储物空间140内分别设置有一个或多个用于测量其内存储物物品的温度的红外传感器130。
温度计算装置160与红外传感器130信号连接,并配置成:每间隔预定时间采集一次红外传感器130的感测结果,得到温度采样值,获取连续预定数量的温度采样值,从获取到的多个温度采样值中筛除最大采样值和最小采样值,并且计算筛除最大采样值和最小采样值后的温度采样值的平均值,以 将平均值作为红外传感器的温度测量值。温度计算装置160可以对多个储物空间内的红外传感器130分别进行温度计算,以分别得到多个储物空间内存储物品的实际温度。
图5是根据本发明一个实施例的冰箱中温度计算装置160的示意框图。该温度计算装置160可以用于执行上述实施例的基于红外传感器的温度测量方法,以得出反映储物空间140内存储物品存储状态的温度值。温度计算装置160可以包括数据筛选模块162、队列存储模块164、以及数据修正模块166。数据筛选模块162可以判断温度采样值是否属于预设的正常数值区间(例如设置为-40至60摄氏度),若否,将温度采样值设置为无效数据并筛除。队列存储模块164可以配置成若温度采样值属于预设的正常数值区间,则将温度采样值按照采样时间依次存储于预设的队列,队列的长度为预定数量。温度计算装置160可以利用存储队列进行数据筛除和平均值计算。
数据修正模块166,配置成使用红外传感器130的预置的修正常数对测量值进行修正,以得到温度修正值。从而消除红外传感器130的绝对误差。
故障提示装置180可配置成:记录无效数据的出现次数,在连续预定数量的温度采样值均为无效数据的情况下,停止红外传感器对预设区域内的温度进行感测,并输出温度测量异常提示信号。该异常提示信号可以通过冰箱的显示屏进行显示,或者通过网络向与冰箱预先绑定的用户使用的移动终端进行报告。
在储物间室被分隔为多个储物空间140的情况下,每个储物空间140内可以分别设置有一个或多个用于测量其内存储物物品的温度的红外传感器130。并且温度计算装置160与多个储物空间140内分别布置的红外传感器130分别连接。温度计算装置160可以分别计算得出多个储物空间的温度修正值,以作为对多个储物空间140分别进行温度控制的依据。在一个储物空间140配置多个红外传感器130的情况下,温度计算装置160可以计算同一储物空间140的多个红外传感装置测量的温度值中最大值与最小值的差值,根据差值的大小确定最大值权重系数k和最小值权重系数m,将最大值权重系数k和最小值权重系数m分别作为温度最大值和温度最小值的权重系数,对温度最大值和温度最小值进行加权和计算,并且将加权和计算的结果作为储物空间140的感测温度值。计算公式为感测温度值IRT=IRTmax*k+IRTmin*m其中,IRTmax为温度最大值,IRTmin为温度最小值。将IRT 作为储物空间140的制冷控制依据。
本实施例的冰箱还可以包括:分路送风装置,配置成将来自于冷源的制冷气流分配至多个储物空间140。制冷控制组件170可以配置成分别将每个储物空间140的温度修正值与每个储物空间140各自预设的区域制冷开启温度阈值进行比较,将温度修正值大于区域制冷开启温度阈值的储物空间对应的制冷状态标识设置为启动,并且驱动分路送风装置运行至向制冷状态标识为启动的储物空间提供制冷气流的状态。
图6是根据本发明一个实施例的冰箱的制冷系统的示意图,以及图7是根据本发明一个实施例的冰箱的制冷系统的结构示意图。该制冷系统包括:风道组件、压缩机、冷藏风门250、风机230等。该冰箱可利用蒸发器、压缩机、冷凝器、节流元件等部件经由冷媒配管构成制冷循环回路,在压缩机启动后,使蒸发器释放冷量。
蒸发器可设置在蒸发器室中。蒸发器冷却后的空气经风机230向贮藏室传送。例如冰箱的贮藏室的内部可分隔为变温室、冷藏室和冷冻室,其中贮藏室的最上层为冷藏室,冷藏室的下层为变温室、变温室的下层为冷冻室,蒸发器室可设置于冷冻室的后部。风机230设置于蒸发器室的上方的出口处。相应地,蒸发器冷却后的空气的供给风路包括与变温室相连的用于向变温室送风的变温供给风路、与冷冻室相连的用于向冷冻室送风的冷冻供给风路、以及与冷藏室相连的用于向冷藏室送风的冷藏供给风路。
在本实施例中,风道组件为向冷藏室送风的风路系统,该风道组件包括:风道底板210、分路送风装置220、风机230。风道底板210上限定有分别通向多个储物空间140的多条风路214,各条风路214分别通向不同的储物空间140,例如在图1所示的实施例中,可以具有通向第一储物空间的第一供风口211、通向第二储物空间的第二供风口212、以及通向第三储物空间的第三供风口213。
分路送风装置220设置在冷藏供给风路中,冷藏供给风路形成在冷藏室的背面,分路送风装置220包括连接至冷源(例如蒸发器室)的进风口221以及分别与多条风路214连接的多个分配口222。分配口222分别连接至不同的风路214。该分路送风装置220可以受控地将风机230产生的来自于冷源的冷气经进风口221分配至不同的分配口222,从而经不同的风路214进入冷藏室的不同的储物空间140。
分路送风装置220可以将来自于冷源的制冷气流进行集中分配,而不是为不同的储物空间140单独设置不同的风道,提高了制冷效率。该分路送风装置220可以包括:壳体221、调节件224、盖板225。壳体221上形成有进风口221和分配口222,盖板225与壳体221组装,形成分路送风腔。调节件224布置于该分路送风腔内。调节件224具有至少一个遮挡部226,遮挡部226可动地设置于壳体221内,配置成受控地对多个分配口222进行遮蔽,以调整多个分配口222的各自的出风面积。
风机230的送风会经过调节件224的分配供向不同的储物空间140,分路送风装置220可以实现多达七种的送风状态,例如可以包括:供向第一供风口211的分配口222单独开,供向第二供风口212的分配口222单独开,供向第三供风口213的分配口222单独开,供向第一供风口211和第二供风口212的分配口222同时开,供向第一供风口211和第三供风口213的分配口222同时开,供向第二供风口212和第三供风口213的分配口222同时开、供向第一供风口211、供向第二供风口212和第三供风口213的分配口222同时开。在本实施例的冰箱由一个隔板隔出两个储物空间时,分路送风装置220可以设置有两个分配口,同时具备三种送风状态即可。在进行分路送风时,调节件224会旋转,会根据需求的风量大小来决定旋转的角度,并且遮挡部226之间形成的导引口会对准对应的分配口222。
壳体221在分路送风腔内设置有电机227、两个止挡柱228、定位座凹槽243,止挡柱228的作用是电机227在运转过程中,调节件224的运动更准确,且每次加电时或一段时间后,调节件224均运动至起始止挡柱228处,以其为起点转动至指定的转动位置。定位座凹槽243的作用是保证调节件224在每转动30度的角度位置时定位。调节件224上设置有盘簧片229(此盘簧片229也可以用扭簧来代替)、配重块241及定位销245。盘簧片229的一段固定于盖板225上,另一端随着调节件224的运转而预紧施加反向的力,始终向调节件224施加一定的偏置力,从而可抑制因直流步进电机227传动机构的齿隙导致的晃动问题。枢转部朝与调节件224的主体径向相反的方向延伸有配重部,在配重部的远端设置有配重块241,以消除偏置转矩。定位销245可上下移动(通过压簧)的固定在调节件224上。壳体221上设置有与之配合的定位座凹槽243。
需要注意的是,本实施例的冰箱以具有三个储物空间140的间室为例进 行说明,在实际使用时,可以根据具体的使用要求,将红外传感组件130、风路214、分配口222、供风口的数量进行设置,以满足不同冰箱的要求。例如,根据以上介绍,容易得出具有两个储藏空间140的冷藏室的送风系统。
制冷控制组件170驱动分路送风装置运行至向制冷状态标识为启动的储物空间140提供制冷气流的状态。控制更加精准,保证了根据储物空间140存储物品的情况来进行制冷控制,避免了对整个间室制冷导致的电能浪费。进一步地,本实施例的冰箱还可以快速对温度较高的物品进行降温,减小温度较高物品对已经存储的其他物品的影响,提高冰箱冷藏室的储藏效果,减少食物的营养流失。
上述冰箱使用红外传感器作为温度测量部件,并通过对测量值采样以及计算的流程进行优化,使得温度测量值更加精确,便于根据热源的情况进行控制,为冰箱内的食物提供最佳的储存环境。
至此,本领域技术人员应认识到,虽然本文已详尽示出和描述了本发明的多个示例性实施例,但是,在不脱离本发明精神和范围的情况下,仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此,本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。

Claims (12)

  1. 一种基于红外传感器的温度测量方法,包括:
    利用所述红外传感器对预设区域内的温度进行感测;
    每间隔预定时间采集一次所述红外传感器的感测结果,得到温度采样值;
    获取连续预定数量的所述温度采样值,并从获取到的所述温度采样值中筛除最大采样值和最小采样值;以及
    计算筛除所述最大采样值和所述最小采样值后的温度采样值的平均值,并将所述平均值作为所述红外传感器的温度测量值。
  2. 根据权利要求1所述的方法,其中获取连续预定数量的所述温度采样值的步骤包括:
    将所述温度采样值按照采样时间依次存储于预设的队列中,所述队列的长度为所述预定数量。
  3. 根据权利要求2所述的方法,其中在将所述温度采样值按照采样时间依次存储于所述队列中的步骤之前包括:
    判断所述温度采样值是否属于预设的正常数值区间;
    若是,则将所述温度采样值存储于所述队列中;
    若否,将所述温度采样值设置为无效数据并筛除。
  4. 根据权利要求3所述的方法,其中在将所述温度采样值设置为无效数据并筛除的步骤之后还包括:
    记录所述无效数据的出现次数;
    在连续所述预定数量的温度采样值均为无效数据的情况下,停止所述红外传感器对预设区域内的温度进行感测,并输出温度测量异常提示信号。
  5. 根据权利要求1至4中任一项所述的方法,其中在得出所述红外传感器的温度测量值之后还包括:
    使用所述红外传感器的预置的修正常数对所述测量值进行修正,以得到温度修正值。
  6. 根据权利要求5所述的方法,其中
    所述红外传感器设置冰箱的储物间室内部,以对所述储物间室内预设储物空间中存储物品的温度进行测量;并且
    在得到所述温度修正值之后还包括:将所述温度修正值作为对所述储物空间进行温度控制的依据。
  7. 一种冰箱,包括:
    箱体,内部限定有储物间室;
    红外传感器,设置所述储物间室内部,配置成对所述储物间室内预设储物空间中存储物品的温度进行感测;以及
    温度计算装置,与所述红外传感器连接,并配置成:每间隔预定时间采集一次所述红外传感器的感测结果,得到温度采样值,获取连续预定数量的所述温度采样值,从获取到的多个所述温度采样值中筛除最大采样值和最小采样值,并且计算筛除所述最大采样值和所述最小采样值后的温度采样值的平均值,以将所述平均值作为所述红外传感器的温度测量值。
  8. 根据权利要求7所述的冰箱,其中所述温度计算装置包括:
    数据筛选模块,配置成判断所述温度采样值是否属于预设的正常数值区间,若否,将所述温度采样值设置为无效数据并筛除;以及
    队列存储模块,配置成若所述温度采样值属于预设的正常数值区间,则将所述温度采样值按照采样时间依次存储于预设的队列,所述队列的长度为所述预定数量。
  9. 根据权利要求8所述的冰箱,还包括:
    故障提示装置,配置成:记录所述无效数据的出现次数,在连续所述预定数量的温度采样值均为无效数据的情况下,停止所述红外传感器对预设区域内的温度进行感测,并输出温度测量异常提示信号。
  10. 根据权利要求7至9中任一项所述的冰箱,其中所述温度计算装置还包括:
    数据修正模块,配置成使用所述红外传感器的预置的修正常数对所述测 量值进行修正,以得到温度修正值。
  11. 根据权利要求10所述的冰箱,其中
    所述储物间室被分隔为多个所述储物空间,每个所述储物空间内分别设置有一个或多个用于测量其内存储物物品的温度的所述红外传感器;并且
    所述温度计算装置,与所述红外传感器分别连接,并配置成:分别计算得出多个所述储物空间的温度修正值,以作为对多个所述储物空间分别进行温度控制的依据。
  12. 根据权利要求11所述的冰箱,还包括:
    分路送风装置,配置成将来自于冷源的制冷气流分配至多个所述储物空间;以及
    制冷控制组件,配置成分别将每个所述储物空间的温度修正值与每个所述储物空间各自预设的区域制冷开启温度阈值进行比较,将所述温度修正值大于所述区域制冷开启温度阈值的储物空间对应的制冷状态标识设置为启动,并且驱动所述分路送风装置运行至向所述制冷状态标识为启动的储物空间提供所述制冷气流的状态。
PCT/CN2015/090983 2015-06-26 2015-09-28 冰箱和基于红外传感器的温度测量方法 Ceased WO2016206218A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510366524.7A CN104990326B (zh) 2015-06-26 2015-06-26 冰箱和基于红外传感器的温度测量方法
CN201510366524.7 2015-06-26

Publications (1)

Publication Number Publication Date
WO2016206218A1 true WO2016206218A1 (zh) 2016-12-29

Family

ID=54302175

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/090983 Ceased WO2016206218A1 (zh) 2015-06-26 2015-09-28 冰箱和基于红外传感器的温度测量方法

Country Status (2)

Country Link
CN (1) CN104990326B (zh)
WO (1) WO2016206218A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111829665A (zh) * 2020-07-16 2020-10-27 深兰自动驾驶研究院(山东)有限公司 一种基于用人体作为虚拟黑体的体温测量的方法、装置及存储介质
US11644229B2 (en) 2020-01-28 2023-05-09 Whirlpool Corporation Cooling assembly for refrigerator appliance
CN119268244A (zh) * 2024-10-09 2025-01-07 宁波方太厨具有限公司 冰箱间室红外温度修正方法

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105115239B (zh) * 2015-06-26 2018-03-23 青岛海尔股份有限公司 冰箱与冰箱间室内部温度的感测方法
CN105157852A (zh) * 2015-06-26 2015-12-16 青岛海尔股份有限公司 冰箱和红外传感器的测温误差修正方法
CN107290983A (zh) * 2016-04-01 2017-10-24 佛山市顺德区美的电热电器制造有限公司 电烹饪器的温度采集方法、装置、控制方法和电烹饪器
CN106766649B (zh) * 2016-11-23 2019-05-31 青岛海尔股份有限公司 用于检测冰箱内是否放入温度异常物品的方法
CN106766650B (zh) * 2016-11-23 2019-05-31 青岛海尔股份有限公司 用于检测冰箱内是否放入温度异常物品的方法
CN106610172B (zh) * 2016-11-23 2019-04-02 青岛海尔股份有限公司 冰箱及其制冷方法
CN106766646B (zh) * 2016-11-23 2019-05-03 青岛海尔股份有限公司 用于检测冰箱内是否放入温度异常物品的方法
CN106766647B (zh) * 2016-11-23 2019-12-06 青岛海尔股份有限公司 用于检测冰箱内是否放入温度异常物品的方法
CN108396530B (zh) * 2017-02-08 2021-06-29 重庆海尔洗衣机有限公司 一种干衣机烘干判断方法及干衣机
CN108168189A (zh) * 2017-12-25 2018-06-15 青岛海尔股份有限公司 冷藏冷冻装置及其控制方法
CN110823560A (zh) * 2018-08-07 2020-02-21 上海华依科技集团股份有限公司 一种用于自动变速器下线测试系统的数据采集方法
CN110173947B (zh) * 2019-05-09 2021-04-23 青岛海尔电冰箱有限公司 制冷装置及其防凝露控制方法
CN111174475A (zh) * 2020-01-09 2020-05-19 珠海格力电器股份有限公司 一种冷凝机组双系统闭环控制方法、装置及冷凝机组
CN113357874B (zh) * 2020-03-06 2022-10-14 长沙智能驾驶研究院有限公司 温度控制方法及装置、计算机设备和计算机可读存储介质
CN112984947B (zh) * 2021-03-08 2021-11-02 上海绿联智能科技股份有限公司 冰箱的温度控制方法、装置及智能控制存储介质
CN114963462B (zh) * 2022-04-15 2024-08-16 青岛海尔空调器有限总公司 用于空调器的温度修正方法及装置、空调器、存储介质
CN115978894B (zh) * 2022-11-25 2024-09-13 珠海格力电器股份有限公司 温度控制方法和控制装置、冰箱以及存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1167931A (zh) * 1996-04-02 1997-12-17 三星电子株式会社 用于冰箱的温度控制方法及其装置
CN1174979A (zh) * 1996-08-27 1998-03-04 Lg电子株式会社 在冰箱中供给冷气的装置和方法
CN103195730A (zh) * 2013-04-07 2013-07-10 北京华清燃气轮机与煤气化联合循环工程技术有限公司 一种燃气轮机压气机进口可转导叶温度控制方法
CN105115239A (zh) * 2015-06-26 2015-12-02 青岛海尔股份有限公司 冰箱与冰箱间室内部温度的感测方法
CN105157852A (zh) * 2015-06-26 2015-12-16 青岛海尔股份有限公司 冰箱和红外传感器的测温误差修正方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS576328A (en) * 1980-06-13 1982-01-13 Matsushita Electric Ind Co Ltd Digital thermometer
JP4963052B2 (ja) * 2006-09-22 2012-06-27 Udトラックス株式会社 排気温度センサの異常検出装置
JP2008142844A (ja) * 2006-12-11 2008-06-26 Okuma Corp 工作機械における温度センサの異常検知方法
CN101339081B (zh) * 2008-08-13 2010-11-03 华夏龙晖(北京)汽车电子科技有限公司 一种冷却液温度传感器故障应急处理方法
CN102353229A (zh) * 2011-09-20 2012-02-15 合肥美的荣事达电冰箱有限公司 冰箱的间室温度控制方法、装置及具有该装置的冰箱
CN102589743B (zh) * 2012-03-15 2013-10-16 西安广芯电子科技有限公司 数码显示温度检测系统和数码显示温度检测方法
CN102694913A (zh) * 2012-05-14 2012-09-26 广东欧珀移动通信有限公司 一种手机内部异常温度报警提示的实现方法
CN102735365B (zh) * 2012-06-25 2015-11-18 美的集团股份有限公司 环境温度检测装置及其故障判断方法
CN103575056A (zh) * 2013-11-04 2014-02-12 合肥美的电冰箱有限公司 冰箱的控制方法及温度检测方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1167931A (zh) * 1996-04-02 1997-12-17 三星电子株式会社 用于冰箱的温度控制方法及其装置
CN1174979A (zh) * 1996-08-27 1998-03-04 Lg电子株式会社 在冰箱中供给冷气的装置和方法
CN103195730A (zh) * 2013-04-07 2013-07-10 北京华清燃气轮机与煤气化联合循环工程技术有限公司 一种燃气轮机压气机进口可转导叶温度控制方法
CN105115239A (zh) * 2015-06-26 2015-12-02 青岛海尔股份有限公司 冰箱与冰箱间室内部温度的感测方法
CN105157852A (zh) * 2015-06-26 2015-12-16 青岛海尔股份有限公司 冰箱和红外传感器的测温误差修正方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11644229B2 (en) 2020-01-28 2023-05-09 Whirlpool Corporation Cooling assembly for refrigerator appliance
CN111829665A (zh) * 2020-07-16 2020-10-27 深兰自动驾驶研究院(山东)有限公司 一种基于用人体作为虚拟黑体的体温测量的方法、装置及存储介质
CN119268244A (zh) * 2024-10-09 2025-01-07 宁波方太厨具有限公司 冰箱间室红外温度修正方法

Also Published As

Publication number Publication date
CN104990326A (zh) 2015-10-21
CN104990326B (zh) 2018-02-02

Similar Documents

Publication Publication Date Title
WO2016206218A1 (zh) 冰箱和基于红外传感器的温度测量方法
WO2016206571A1 (zh) 冰箱和红外传感器的测温误差修正方法
CN105115239B (zh) 冰箱与冰箱间室内部温度的感测方法
US9055697B2 (en) Air conditioning system control
DK2880375T3 (en) DETECTION OF FROZEN EVAPER HOSE AND STARTING OF DEFROST
US20180340719A1 (en) Detection of lack of refrigerant in a cooling system having multiple cooling locations
US20160290713A1 (en) Refrigeration system and control system therefor
WO2016206219A1 (zh) 冰箱冷藏室的分区制冷控制方法和分区制冷控制装置
US20140341253A1 (en) Anomaly detector and environmental tester including the same
CN106196272A (zh) 空调室内机、空调风量调节方法及装置
US6405548B1 (en) Method and apparatus for adjusting temperature using air flow
WO2018095334A1 (zh) 用于检测冰箱内是否放入温度异常物品的方法
KR101545206B1 (ko) 에너지 절약형 항온항습기의 냉동기 제어장치
CN206146084U (zh) 一种小型药品冷藏柜
CN120160368A (zh) 蒸发器化霜判断方法及变频冰箱
US10429863B2 (en) Systems and methods for refrigerator control
US12331973B2 (en) Refrigerator with anti-condensation features
JP3658911B2 (ja) ショーケース冷却装置
JP4936356B2 (ja) ショーケース
JPH07104095B2 (ja) 高湿度型冷蔵庫における湿度検出方法、装置及び湿度制御装置
JP3071096B2 (ja) オープン型冷凍・冷蔵ショーケース
CN204678769U (zh) 冰箱
CN204678764U (zh) 冰箱
KR102306163B1 (ko) 천장형 에어컨의 베인 제어 장치 및 방법
KR102126890B1 (ko) 냉장고의 제어방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15896113

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15896113

Country of ref document: EP

Kind code of ref document: A1