CN1012521B - Temp. controlling means of refrigerator - Google Patents
Temp. controlling means of refrigeratorInfo
- Publication number
- CN1012521B CN1012521B CN88100827A CN88100827A CN1012521B CN 1012521 B CN1012521 B CN 1012521B CN 88100827 A CN88100827 A CN 88100827A CN 88100827 A CN88100827 A CN 88100827A CN 1012521 B CN1012521 B CN 1012521B
- Authority
- CN
- China
- Prior art keywords
- temperature
- refrigerating chamber
- cold air
- refrigerator
- adjustable plate
- 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.)
- Expired
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
- F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1917—Control of temperature characterised by the use of electric means using digital means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/045—Air flow control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
- F25D2317/0653—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the mullion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/04—Refrigerators with a horizontal mullion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
- F25D2700/122—Sensors measuring the inside temperature of freezer compartments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
- F25D2700/123—Sensors measuring the inside temperature more than one sensor measuring the inside temperature in a compartment
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
To facilitate the discharge of any metal stuck to the unit in the caption at the time of amintenance by providing holes which pierce the flange of each housing from the outside to the inside thereof and communicate with axial grooves or cutouts which communicate with the grooves. Circumferential grooves 14, 24, axial grooves 15, 25, and radial holes 16, 26 provided on the inner radial surfaces 11a, 21a of the bearing parts 11, 21 of housings 10, 20 and the holes 17, 27 provided on the flange 13, 23 of the housings 10, 20 and are communicated with the outside. The metal which is fixed to a bearing unit at the same time when it is pulled up from a molten zinc bath can, therefore, be discharged easily through the grooves 14, 24; 15, 25 and holes 16, 26; 17, 27.
Description
The present invention relates to the temperature control technology of refrigerating chamber, particularly about improving a kind of control device of refrigerator temperature distribution.
Fig. 9 represents the real sectional drawing of driving the refrigerator of delivering in the clear 58-57679 communique that the conventional temperature control device is housed.
Among the figure, (1) is refrigerator body, and (2) are the heat-insulating walls of being separated in the refrigerator body (1), and (3) are the same with heat-insulating wall (2) to be the dismountable compartment of being separated in the refrigerator body (1).(4) be to be suitable for the refrigerating chamber that food product refrigeration is preserved, (5) be to be suitable for cryopreserved refrigerating chamber, (6) be the vegetable compartment that is suitable for preserving vegetables, more than several chambers separated by above-mentioned heat-insulating wall (2) and compartment (3), but the opening portion of each chamber is equipped with the refrigerator doors of switch respectively.(7) be the cooling device of the refrigerator installed on the rear wall of refrigerating chamber (4), (8) are the cooler bodies of this cooling device (7), and (9) are to make the circulate fan of usefulness of cold air.(10) be the back side passage that forms at the cooling device back side, cold air enters refrigerating chamber (5) by this back side passage (10) from cold air outlet (10a).(11) be mounted in the air damper that the adjusting cold air influx at refrigerating chamber (5) the internal upper part back side is used, this air damper (11) is made up of thermoregulator body (11a) and adjustable plate (11b).(12) be in order to make the cold air that is circulated throughout in refrigerating chamber (5) and the vegetable compartment (6) return the cold air suction passage of cooling device (7) usefulness again.This cold air suction passage (12) forms in thermal insulation board (2).(13) be for cold air is flowed in the vegetable compartment (6) from refrigerating chamber (5), and the duct, rear portion that forms at the rear portion of compartment (3).(14) be to make the cold air that is circulated throughout in the vegetable compartment (6) return the interior passage of refrigerating chamber (5).(15) be the storage rack that article such as food are used of putting that suitably is arranged in the refrigerating chamber (5).(16) be the cold air path that cold air is flowed downward that forms at this (15) rear portion.(17) be the facing cover of protection air damper (11) usefulness, its top has cold air top gas vent (17a), and its underpart is provided with bottom gas vent (17b).(18) be from the venting grid of cooling device (7) to refrigerating chamber (4) discharging cold air.(19) be to siphon away the inspiratory gate that the cold air that is circulated throughout in the refrigerating chamber (4) is used.(20) be to siphon away the anterior air entry that the cold air that is circulated throughout in the same refrigerating chamber (4) is used, this air entry (20) is to absorb and form in the front portion of thermal insulation board (2) for inspiratory gate (19) being inhaled remaining remaining cold air.
The structure that in the past was provided with thermostatic refrigerator is as mentioned above: this refrigerator, the cold air that cooling device (7) is produced by fan (9) forcibly be transported in the refrigerator each is indoor, make each chamber reach preference temperature respectively.
Being described as follows of the cooling action of above-mentioned each chamber.
Cold air by cooler body (8) produces directly cools off refrigerating chamber (4).
The cooling situation of refrigerating chamber (5) is as follows: by the work of fan (9) cold air that cooling device (7) is interior, forcibly import back side passage (10), gas vent (10a) through back side passage (10) flows in the facing cover (17), flow in the refrigerating chamber (5) from top gas vent (17a) and bottom gas vent (17b) again, cold air circulates in refrigerating chamber (5), makes its cooling.Then, flow through the part in the cold air in this refrigerating chamber (5),, flow into vegetable compartment (6), this vegetable compartment (6) in, circulate and cool off by cold air path (16) and duct, rear portion (13).In addition, the cold air that circulation back temperature slightly raises, cools off in cold air suction passage (12) returns cooling device (7) by passage (14) more again.
When reaching the low temperature of regulation in the refrigerating chamber as a result (5) of above-mentioned circulating cold air and in the vegetable compartment (6), adjuster (11) is just started working, close the gas vent (10a) of back side passage (10) with adjustable plate (11b), regulate the discharging amount of cold air, prevent in the refrigerating chamber (5) cold excessively.When temperature in the refrigerator surpassed set point of temperature, adjuster (11) was started working again, carries out circulating cold air, and refrigerating chamber (5) inside and vegetable compartment (6) temperature inside are controlled.
Figure 10 is the circuit diagram that the spy drives the conventional refrigerator temperature control equipment described in the clear 61-134564 communique.(21) are mounted in the thermistor equitemperature sensor in the refrigerating chamber among the figure, the A point voltage that to determine by the intrinsic standoff ratio between it and the resistance (22), with the B point voltage determined by resistance (23) and resistance (24) (corresponding to design temperature), after comparing with comparison circuit (voltage ratio is than integrated circuit) (25), its output is imported into compressor relay (27) and drives with transistor (26) and OR-circuit (28).
(29) be mounted in the interior thermistor equitemperature sensor of refrigerating chamber, the C point voltage that to determine by the intrinsic standoff ratio between it and the resistance (30), with the D point voltage of determining by resistance (31) and resistance (32), after comparing with comparison circuit (33), its output is imported into air damper relay (35) and drives with transistor (34) and OR-circuit (28).
Be output as the OR-circuit (28) of input with comparison circuit (25) and (33), its output is passed to fan motor relay (37) and drives with in the transistor (36).
(38) be AC power, this power supply is by contact (44) (43) (42), respectively to compressor (41), fan electromotor (40) and adjuster (39) power supply.
At first, when the temperature in the refrigerating chamber raises, the resistance value of temperature sensor (21) will diminish, thereby the voltage that A order is higher than the voltage that B is ordered, and make the output increase of comparison circuit (25).Make transistor (26) be on-state by this output, compressor relay (27) is by excitatory and with contact (44) closure, make compressor (41) energising.
Secondly, opposite with above-mentioned situation, when the temperature in the refrigerating chamber reduces, the resistance value of temperature sensor (21) will become greatly, and the input of comparison circuit (25) reduces.Its result makes transistor (26) be closed condition, and compressor relay (27) is not excitatory, and contact (44) disconnects, and compressor is shut down.Because the output of comparison circuit (25) is imported into an input of OR-circuit (28), when its output valve is high, the output of OR-circuit (28) also will increase, and transistor (36) is connected.This moment is excitatory with fan motor relay (37), contact (43) closure, and fan electromotor is entry into service just.That is to say that when the output of comparison circuit (25) increased, compressor (41) cooled off running simultaneously with fan electromotor (40).
Also the situation with above-mentioned refrigerating chamber is identical in the temperature control of refrigerating chamber.That is to say that measure and refrigerate the variation of the corresponding resistance value of variations in temperature of indoor temperature transmitter, when the temperature in the refrigerating chamber was high, the C point voltage was higher than the D point voltage, thereby the output of comparison circuit (33) increases.So transistor (34) is on-state, the relay of adjustable plate (35) is made contact (42) closure by excitatory, and to adjustable plate (39) power supply, institute is cooled off in the refrigerating chamber so that adjustable plate is opened.Meanwhile, because OR-circuit (28) has been accepted high input value, and the output of OR-circuit (28) is also increased, thereby make fan electromotor (40) entry into service.
In contrast, when the temperature (29) of refrigerating chamber reduced, contact (42) just disconnected, adjuster (39) outage, and adjustable plate is just closed.
More than explanation if the temperature of refrigerator refrigerating chamber in the past raises, just start compressor and fan electromotor, is cooled off refrigerating chamber; If the temperature in the refrigerating chamber raises,, refrigerating chamber is cooled off just when opening adjustable plate, also start fan electromotor.
The problem that the sort of in the past temperature control equipment exists is, owing to have only 1 temperature sensor (29) in the refrigerating chamber, if too much or because of the bad circulation time that influences cold air of food disposing way, non-uniform phenomenon will appear in the Temperature Distribution in the refrigerating chamber in the amount of food of refrigeration indoor storage.
Another problem is, when only refrigerating chamber being cooled off, because fan electromotor is in running; so cold air also is sent to refrigerating chamber, the temperature when the temperature ratio piston compressor of this strand cold air does not turn round in the refrigerating chamber is also high, therefore; when compressor shutdown, the rising of freezer temperature is accelerated.Owing to this reason, compressor Homes Using TV height, and power consumption is increased.
In order to address the above problem, the purpose of the 1st invention is to propose a kind of uniformity of temperature profile that can make in the refrigerating chamber, can reduce the refrigerating chamber control device of power consumption again.
In recent years, refrigerator develops to the direction of maximization and multi-doorization.Which floor generally is divided in the refrigerating chamber, is depositing a large amount of food, with the cold air path obstruction of dividing plate back, if after having adopted the 1st invention, cold air sufficient inadequately phenomenon concerning cooling off whole refrigerating chamber (5) still might occur.
The 2nd invention is to invent in addition improved plan with above-mentioned the 1st, its objective is to propose a kind of influence that is not refrigerated indoor storage article state, and makes the refrigeration indoor temperature reach equally distributed refrigerator temperature control device.
Use the application example of first invention of description of drawings below.
Fig. 1 is the structure chart of the application whole refrigerator that example is carried of the 1st invention; Fig. 2 is the control procedure block diagram of Fig. 1; Fig. 3～Fig. 5 is the flow chart of the control flow of presentation graphs 1; Fig. 6 is the refrigerator profile that temperature control equipment is housed that example is used in the 2nd invention; Fig. 7 is the block diagram that expression refrigerator temperature control loop in the example is used in the 2nd invention; Fig. 8 is the flow chart of expression refrigerator temperature control device duty in the 2nd invention equally; Fig. 9 represents the profile of traditional refrigerator that temperature control equipment is housed; Figure 10 is the control circuit figure of traditional refrigerator.
Fig. 1 is the overall construction drawing of refrigerator. (1) is refrigerator body. (4) be refrigerating chamber, indoorly thermistor equitemperature sensor (45) be housed (to call in the following text: the F thermistor), its output is imported in the refrigerator temperature detection means (46). Cooler (8) and fan electromotor (9) are housed on the rear wall back side of refrigerating chamber (4), and the cold air with this fan electromotor (9) will cool off through cooler (8) forcibly is transported to refrigerating chamber (5) by refrigerating chamber (4) and passage (10). (11) be that the air damper that the adjustable plate (11b) of cold air is put in control in the refrigerating chamber (5) is housed, when adjustable plate (11b) was opened, just discharging cold air in the refrigerating chamber (5) was when adjustable plate (11b) closure, just with the cold air path blockade. The switch of above-mentioned adjustable plate (11b) is by circuit control.
On the diverse location in refrigerating chamber (5), thermistor grade in an imperial examination 1 temperature sensor (47) is housed respectively (to call in the following text: R1Thermistor) and the 2nd temperature sensor (48) (to call in the following text: R2Thermistor), the output of each sensor all is imported in the refrigerator internal temperature detection means (46). (49) be mounted in the lip-deep refrigerator internal temperature setting of refrigerator doors and use control panel, design temperature is input in the design temperature detection means (50).
(51) be control device, the signal that sends from refrigerator internal temperature detection means (46) and design temperature detection means (50), be input in the control device (52), from then on control device (52) respectively to control compressor (56) compressor control means (53), control and regulation plates (11b) adjustable plate control device (54) with And the control of Fan Motor means (55) of control fan electromotor (9) are sent control signal.
Fig. 2 is the block diagram of control device. Among the figure, (57) are with F thermistor (54), R1Thermistor (47) and R2Thermistors (48) etc. detect the loop as input with the refrigerator internal temperature that detects refrigerator internal temperature (temperature that comprises refrigerating chamber (4) and refrigerating chamber (5)) usefulness, and are corresponding with refrigerator internal temperature detection means (46). Then, temperature data is transported to the control loop (59) that is equivalent to Fig. 1 control device (52). (58) be that the refrigerator internal temperature that is equivalent to Fig. 1 design temperature detection means (50) is set the loop, it also is transported to control loop (59) with refrigerating chamber (4) and refrigerating chamber (5) machine design temperature.
Control loop (59) is according to taking from the data that the refrigerator internal temperature detects loop (57) and refrigerator internal temperature setting loop (58), the decision operating condition, the adjustable plate that the driven compressor loop (60) of the compressor control means (53) by being equivalent to Fig. 1, the fan electromotor that is equivalent to the fan electromotor control device (55) of Fig. 1 drive loop (61) and be equivalent to the adjustable plate control device (54) of Fig. 1 drives loop (62), respectively compressor (56), fan electromotor (9) and adjustable plate (11b) operating condition is controlled.
The course of work of the controlling device for refrigerator of said structure is described as follows with Fig. 3.
The outline flowchart of representing the interior whole procedure of control loop (59) in Fig. 3.At first carry out initial setting, enter main program then in the 100th step.In the 200th step,, the data of each thermistor (45), (47), (48) are converted to temperature according to taking from the data that refrigerator temperature detects loop (57).In the 300th step, the data of the refrigerator internal temperature being set loop (58) are converted to design temperature.In the 400th step, carry out the operating condition of refrigerator being judged after temperature judges according to refrigerator internal temperature data and design temperature data, export in the 500th step according to this result of determination.
Fig. 4 is the flow chart of expression temperature decision procedure (the 400th step) detailed process.At first, the design temperature T in F temperature adjustment portion to refrigerating chamber (4)
FSWith F thermistor temp T
FaCompare (the 401st～402 step), if the temperature T of F thermistor
FaHeight just is set in COMPF 1 place (the 404th step); If T
FaLow, just COMPF is set to 0 place (the 403rd step).Secondly, in R temperature adjustment portion to R
1Thermistor temp T
Ra1With R
2Thermistor temp T
Ra2Mean temperature T
RaWith design temperature T
RsCompare (the 410th～415 step), if average thermistor temp T
RaHeight just is set in 1 place (the 417th step) to DAMPF; If T
RaLow, just DAMP F is set in the O place again.Once more, R
1Thermistor temp T
Ra1Or R
2Thermistor temp T
Ra2Less than design temperature T
RS-T
1Temperature the time (see figure 4), just DAMPF is set in O place (the 418th, 419,422 step).When if temperature is high, then with R
1Thermistor T
Ra1Or R
2Thermistor temp T
Ra2With design temperature T
Rs+ T
2The temperature of degree compares, if last temperature height is set in 1 place (the 420th, 421,424 step) with DAMP F and FAN F respectively; If last temperature is low, then FANF is set to the 423rd step of O().
Fig. 5 represents the flow chart of the program (the 500th step) of output, carries out the judgement of DAMP F in (501) step, if 1, just the signal (the 503rd step) of adjustable plate is opened in output, if 0, just exports the signal (the 502nd step) of closed adjustable plate.Secondly, carry out the judgement (the 504th step) of COMP F, if 1, in the signal (the 506th step) that the output compressor starts, fan is also started (the 509th step).If COMP F is 0, just export the signal (the 505th step) of compressor shutdown, again FANF is judged (the 507th step), if 1, the signal of output FANON (the 509th step) if 0, is just exported the signal of FANOFF.
Owing to control by said procedure, so at R
1Thermistor temp T
Ra1And R
2Thermistor temp T
Ra2Difference hour, that is when the normal operating condition of refrigerator steady load, above-mentioned 2 thermistor temp T
Ra1, T
Ra2Mean value be judged as the refrigerating chamber internal temperature, come the switch adjustable plate according to this mean temperature, control refrigerating chamber internal temperature.In addition, when adjustable plate unlatching, compressor shutdown, because fan electromotor is in stopped status, the temperature rise of refrigerating chamber part is less, and running rate is lower, so can save electric power.
Secondly, put in refrigerating chamber under the condition of a large amount of food and use, the refrigerating chamber internal temperature (has surpassed by said temperature T when raising
1During the temperature determined), even because compressor also makes fan motor runs in the OFF state, so refrigerating chamber promptly can be cooled down.
Once more, the food of refrigeration indoor storage hampers the convection current of cold air and (temperature is lower than by T when only some is caught a cold
2When the temperature of determining is following) because adjustable plate is at first closed, so can prevent freezing of food.
More than using example is the situation that 2 temperature sensors have been installed in refrigerating chamber, but is not limited to 2, installs also can more than 3.
In the above-mentioned application example, control as internal temperature of refrigerator with the mean temperature of 2 temperature sensors installing in the refrigerating chamber, but the temperature sensor of a certain sensor as special use under the normal condition, and, can both obtain same effect with another sensor as the detection usefulness that only supplies to use under the abnormality.
As mentioned above, the 1st invention according to proposing here is provided with the temperature sensor more than 2 in refrigerating chamber, adjustable plate then carries out switch according to the detected temperatures of these sensors, wherein so long as when having 1 to surpass a certain temperature, just can make adjustable plate open fan motor runs; Be lower than a certain temperature when following if any 1, adjustable plate is at first closed, therefore can make the uniformity of temperature profile in the refrigerating chamber, realize the cooling that adapts with the refrigerating chamber internal loading, and reduce power consumption.
The 2nd invention improved the 1st invention, makes the Temperature Distribution in the refrigerating chamber not be subjected to the influence of article storage state and reach even, now uses figure to be illustrated as follows to the application example of the 2nd invention.
Fig. 6 has represented to equip the refrigerator sectional drawing of the temperature control equipment of the 2nd invention example.Fig. 7 is the block diagram in this refrigerator temperature control device loop, and Fig. 8 is the flow chart of same refrigerator temperature control device duty.(1) among the figure to (14) and (17) to (20) be with above-mentioned the 9th figure in identical or corresponding component part.
(63) are the passages of carrying cold air among the figure, its bottom through to the facing plate (17) of topped adjuster (11), this passage (63) extend to the rear wall of refrigerating chamber (5) position that is connected with the duct, rear portion (13) of compartment (3) (refrigerating chamber (5) with vegetable compartment (6) between).(64), (65), (66) are the compartments that refrigerating chamber is divided into several spaces, (67), (68), (69) are mounted in the cold air gas vent on the passage (63), be configured in respectively between the several compartments (64), (65), (66) of refrigerating chamber (5).(70), (71), (72) be installed between each compartment (64), (65), (66) respectively, by the temperature sensor that thermometric constitutes with thermistor etc., wherein (70) are the representative temperature sensors.(73), (74), (75) are the temperature detection means that are connected with each temperature sensor (70), (71), (72) respectively, wherein (73) are representational temperature detection means.(76) be arranged on variable resistor on refrigerating chamber (4) door or refrigerating chamber (5) door, (77) be the design temperature detection means that is connected with variable resistor (76), (78) be control devices such as microcomputer, after with it the signal of telecommunication from representative temperature detection means (73), temperature detection means (74), (75) and design temperature detection means (77) being compared respectively, the switch motion of adjuster (11) is controlled.
As shown in Figure 6, refrigerating chamber (5) by 3 locellus compartments (64), (65), (66) and 1 dividing plate totally 4 compartments be divided into 5 space (78), (79), (80), (81), (82) of depositing article.Also having (83) in addition is the cold air gas vent of putting into cold air to space (78), and (84) are the cold air gas vents to space (82) venting.
The structure of the refrigerator temperature control device that proposes in the 2nd invention, as mentioned above.The cold air that produces from cooling device (7) is transported to the whole flow process of refrigerator body (1) and the circulation of cold air with fan (9), basically identical with in the past.Therefore, stress in this manual and different in the past improvement parts.
At first illustrate, in refrigerating chamber (5), put into the situation of cold air.The present invention is owing to be provided with topped a facing cover (17) of adjuster (11), and its underpart is connected with passage (63), thus in cooling device (7) cold air of generation, by rear wall passage (10), facing cover (17) flow channel (63).This passage (63) has cold air gas vent (67), (68), (69) on several locellus (64), (65), (66) in refrigerating chamber (5), thereby can emit cold air simultaneously from each cold air gas vent (67), (68), (69).Simultaneously, remaining cold air can be put into vegetable compartment (6).Therefore, it is different with refrigerator (shown in Figure 9) in the past, it is not only to emit cold air from the gas vent (17a) on facing cover (17) top and the gas vent (17b) of bottom, so cold air can promptly flow in the interior and vegetable compartment (6) of refrigerating chamber (5).And owing to these cold air gas vents (67), (68), (69) are configured in respectively in each locellus (64), (65), (66), so cold air can be put into equably whole refrigerating chamber (5).Especially, cold air is generally these characteristics of flowing that descend, and this strand cold air is to blow down from the cooling device (7) that is positioned at refrigerator body (1) top, and cold air gas vent (67), (68), (69) are arranged near the lower surface of each grate (15) that separates by several compartments (64), (65), (66) in the refrigerating chamber (5), so can obtain circulating cold air effect preferably.In addition, when gas vent is arranged on this position,, also can not stop up cold air gas vent (67), (68), (69), therefore can not influence the circulation of cold air even deposited a large amount of food in the refrigerator (5).Also have, passage (63) is arranged on the back side of this grid (15), and this can guarantee that cold air path is unblocked, so even upward numerous food product is placed on very the inside at grid (15), also can not hinder the circulation of cold air, so can in refrigerating chamber (5), effectively utilize the space store food.
Secondly explanation, the temperature control device in the refrigerating chamber (5).
In order to detect refrigerating chamber (5) temperature inside, several temperature sensor (70), (71), (72) have been installed in refrigerating chamber (5).This is because the capacity of refrigerator (5) is big, the inaccessible uniform state of Temperature Distribution, and food etc. deposit the improper Temperature Distribution that also can influence, so take by the measure of relatively carrying out the temperature adjustment of the temperature in the refrigerating chamber (5) with design temperature.Therefore, if under the situation that the grid (15) in refrigerating chamber (5) is cut apart by several compartments (64), (65), (66), if 3 temperature sensors (70), (71), (72), its better effects if are installed accordingly with each compartment (64), (65), (66).In addition, utilize control device (78), to by several temperature sensor (70), (71), (72) and temperature detection means (73), (74), (75) detected detected temperatures, after comparing with the design temperature that records by variable resistor (76) and design temperature detection means (77), the switch motion of adjuster (11) is controlled.
The following describes this control method.
For example, with in the several temperature sensor any one as representational temperature sensor (70), and with its detected temperatures as typical value, then this typical value and design temperature are compared, when typical value during, make adjustable plate (11b) be in opening, when typical value is lower than design temperature greater than design temperature, make adjustable plate (11b) be in closure state, thereby regulate the discharging amount of cold air.Only with the control method of this adjusting cold air discharging amount, when making the Temperature Distribution of the locellus of each compartment (64) in the refrigerating chamber (5), (65), (66) formation often keep uniform state, also be can carry out thermoregulator.But when temperature distributing disproportionation was spared, it was not enough only adopting this measure.Therefore, without this typical value and design temperature, the detected temperature of any one sensor among several temperature sensor (70), (71), (72) surpasses design temperature to the set point of temperature scope time, just makes its controlled adjuster (11) produce switch motion.That is to say in the temperature sensor (71) except that representative temperature sensor (70), (72) detected temperature, its minimum temperature (for example deducts below the set point of temperature less than design temperature, design temperature-3 ℃) time, make adjustable plate (11b) be closure state; In contrast, when the maximum temperature in the temperature that is detected by temperature sensor (71), (72) adds more than the set point of temperature (for example, design temperature+3 ℃) greater than design temperature, just control to adjust plate (11b) and be opening.After adopting this control method, in refrigerating chamber (5) among each compartment (64), (65), (66), can be according to compartment (64), (65), (66) of that temperature that departs from the design temperature maximum, come the switch motion of controlled adjuster (11), thereby help to make the Temperature Distribution in the refrigerating chamber (5) to reach uniform state, adopt this control method, temperature distribution homogenization is arrived to a certain degree.
When having deposited the high food of temperature on one in several compartments (64), (65), (66), and go up because the cause of the location mode of food when making temperature generation localized variation easily, can not make food spoilage fully yet or freeze at each compartment (64), (65), (66).
Further set forth the control method of the cold air supply of the refrigerator temperature control device of this example with the flow chart of Fig. 8 below.
Establishing the temperature that is detected by representative temperature sensor (70) among the figure is T
A, among other temperature sensor (71), detected temperatures that (72) record, establishing maximum temperature is T
BH, minimum temperature is T
BL, design temperature is T
SAnd then establish than design temperature T
SThe temperature difference that exceeds uniform temperature is set point of temperature T
1(for example, 3 ℃), the temperature difference that is lower than uniform temperature is set point of temperature T
2(for example ,-3 ℃).
At first, in S1 step, the representative detected temperatures T that representative temperature sensor (70) is obtained
A, the maximum temperature T of the detected temperatures that records with other temperature sensor (71), (72)
BHCompare.If T
BHCompare T
AHigh to set point of temperature T
1When (as 3 ℃) are above, just make adjustable plate (11b) be opening in the S4 step.Work as T
BHWith T
ADifference less than set point of temperature T
1The time, just in S2 goes on foot, to the minimum temperature T in the detected temperatures of temperature sensor (71), (72) detection
BLWith representative detected temperatures T
ACompare.And if its difference is greater than set point of temperature T
2When (as-3 ℃), then make adjustable plate be closed condition in the step at S5.In addition, when this difference less than set point of temperature T
2The time, the representative detected temperatures T that in S3 step, representative temperature sensor (70) is obtained again then
AWith design temperature T
SCompare.In this S3 goes on foot, as representative detected temperatures T
AThan design temperature T
SWhen also low, make adjustable plate (11b) be closure state in the step,, then make adjustable plate (11b) be opening in the step at S4 if situation is opposite at S5.
As mentioned above, among each compartment (64) in the refrigerating chamber (5), (65), (66), the part that departs from farthest with temperature conditions is a foundation, irrespectively carries out the control of the switch motion of adjuster (11) with design temperature, makes the temperature distribution homogenization in the refrigerating chamber (5).And, the difference of the temperature of each compartment (64), (65), (66), if in the set point of temperature scope time, just the typical value that simply design temperature and representative temperature sensor (70) is recorded compares, and just can be regulated the temperature in the refrigerator.
The method of adjustment of this cold air discharge quantity can be implemented continuously repeatedly every certain hour.And, in carrying out refrigerating chamber (5), in the temperature distribution homogenization, also carried out the adjustment in the refrigerating chamber (5).
What illustrate in above-mentioned application example is, determines typical value by the detected temperatures of several temperature sensor, promptly in this several temperature sensor any one is made as representative temperature sensor (70), and the situation of its detected temperatures as typical value.But, need not be defined as the representative temperature sensor to this representative temperature sensor (70), and wait to substitute to be fine yet with other temperature sensors (71), (72).In addition, these temperature sensors preferably are installed to the position that detects indoor temperature of each minute easily, and the quantity of installation also can suitably increase with the increase of refrigerating chamber (5) internal volume.
When the detected temperatures of several temperature sensor decides typical value, also can each detected temperatures is average in addition, this mean value is utilized as the typical value of detected value.In this case, from the interior temperature distribution homogenization angle of refrigerating chamber (5), has superiority especially.
In above-mentioned application example, temperature sensor is arranged in 3 spaces (79), (80), (81), also be method preferably but temperature sensor is set in the space (82) of the space (78) of topmost and foot.If design like this, this application example is as follows: cold air is sent into 5 spaces (78), (79), (80), (81), (82) respectively from 5 gas vents (83), (67), (68), (69), (84), according to from being separately positioned on 5 detection signals that temperature sensor measures in 5 spaces (78), (79), (80), (81), (82), the switch control of carrying out adjuster (11) in control device (78) gets final product.
About the method to set up and the temperature-controlled process of the temperature sensor in the above-mentioned example, also can be implemented equally by the application example of Fig. 1～the 1st invention shown in Figure 5.
From above-mentioned explanation as can be seen, the refrigerator temperature control device that proposes in the 2nd invention is the same with the 1st invention, be that several diverse locations in refrigerating chamber detect temperature, control to adjust the switch motion of plate by the temperature control device of control air damper, regulating the circulation of cold air, thereby the homogenising that the Temperature Distribution of whole refrigerating chamber is acquired a certain degree is eliminated irregular cooling, improve cooling effectiveness, can reach comparatively ideal refrigerator temperature control.Moreover, cold air path is connected to the bottom of the facing cover of topped adjuster always, on this passage, disposing to the indoor gas vent of putting into cold air of the branch of each separation, cold air by the cooling device generation, carry the passage of cold air by this, it is indoor to blow to each branch simultaneously from each cold air gas vent, thereby under the influence of not deposited amount of commodity, cold air promptly can be sent in the whole refrigerating chamber exactly.
Claims (4)
1, a kind of refrigerator temperature control device, comprise that having control is blown into the air damper of adjustable plate of cold air and the compartment that refrigerating chamber is divided into several spaces in refrigerating chamber, it is characterized in that described refrigerator temperature control device also comprises the cold air gas vent that is positioned at above-mentioned each space, topped above-mentioned adjustable plate and the passage that will described each cold air gas vent be communicated with, be installed in the several temperature sensor of the interior diverse location of refrigerating chamber and refrigerating chamber that the temperature that detects by the said temperature sensor is controlled above-mentioned adjustable plate in temperature control equipment.
2,, it is characterized in that the installation of temperature sensor is corresponding with each compartment according to the described refrigerator temperature control device of claim 1.
3,, it is characterized in that air damper is installed in the back side of refrigerating chamber internal upper part according to the described refrigerator temperature control device of claim 1.
4, according to the described refrigerator temperature control device of claim 1, it is characterized in that the cold air gas vent be installed in the compartment lower surface near.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987019028U JPS63125769U (en) | 1987-02-12 | 1987-02-12 | |
| JP019028/87 | 1987-02-12 | ||
| JP199362/87 | 1987-08-10 | ||
| JP62199362A JPS6446554A (en) | 1987-08-10 | 1987-08-10 | Controller for refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN88100827A CN88100827A (en) | 1988-10-19 |
| CN1012521B true CN1012521B (en) | 1991-05-01 |
Family
ID=26355817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88100827A Expired CN1012521B (en) | 1987-02-12 | 1988-02-12 | Temp. controlling means of refrigerator |
Country Status (5)
| Country | Link |
|---|---|
| KR (1) | KR930004397B1 (en) |
| CN (1) | CN1012521B (en) |
| GB (1) | GB2201014B (en) |
| HK (1) | HK74191A (en) |
| MY (1) | MY103196A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128971C (en) * | 1997-07-31 | 2003-11-26 | 三星电子株式会社 | Refrigerator having device for opening/closing cool air supply ports and method for controlling the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0140460B1 (en) * | 1994-04-04 | 1998-07-01 | 김광호 | Refrigeration air supply control device and its control method |
| EP0982553B1 (en) * | 1994-11-30 | 2002-10-09 | Samsung Electronics Co. Ltd. | Method for controlling refrigerator temperature by controlling cool air discharge direction |
| KR100208345B1 (en) * | 1996-04-02 | 1999-07-15 | 윤종용 | Temperature control method and device of refrigerator |
| KR0176692B1 (en) * | 1996-04-29 | 1999-10-01 | 윤종용 | Temp.control method and device thereof in ref. |
| KR100195153B1 (en) * | 1996-04-30 | 1999-06-15 | 윤종용 | A method for controlling temperature a separate cooling refrigerator with a rotary blade |
| JP2918536B2 (en) * | 1997-07-23 | 1999-07-12 | 三星電子株式会社 | Open / close operation control method for cold air outlet of refrigerator |
| ES2142740B1 (en) * | 1997-12-26 | 2000-12-01 | Consejo Superior Investigacion | AUTOMATIC CONTROL SYSTEM OF FRUIT COOLING. |
| JPH11223450A (en) * | 1998-02-04 | 1999-08-17 | Toshiba Corp | Refrigerator |
| WO2001079942A1 (en) * | 2000-04-14 | 2001-10-25 | Omron Corporation | Controller, temperature regulator and heat treatment apparatus |
| WO2004020920A1 (en) * | 2002-09-02 | 2004-03-11 | Arçelik, A.S | Refrigerator control method |
| KR100505254B1 (en) * | 2003-03-31 | 2005-08-03 | 엘지전자 주식회사 | Temperature control method for refrigerator |
| ITTO20040397A1 (en) * | 2004-06-15 | 2004-09-15 | Itw Ind Components Srl | METHOD AND DEVICE TO CONTROL THE INTERNAL TEMPERATURE OF A REFRIGERATOR CELL, IN PARTICULAR OF A REFRIGERATOR OR FREEZER |
| EP1748267B1 (en) * | 2005-07-28 | 2019-02-20 | COFI EUROPE S.r.l. | Combined multitemperature or monotemperature operating cooler and process for controlling the operation of such cooler |
| JP5854937B2 (en) * | 2012-06-29 | 2016-02-09 | 株式会社東芝 | refrigerator |
| CN103575056A (en) * | 2013-11-04 | 2014-02-12 | 合肥美的电冰箱有限公司 | Control method and temperature detection method of refrigerator |
| CN103604276B (en) * | 2013-12-05 | 2016-03-30 | 合肥美的电冰箱有限公司 | Refrigerator and temperature control equipment and temperature-controlled process |
| DE102015007359A1 (en) * | 2014-10-29 | 2016-05-04 | Liebherr-Hausgeräte Ochsenhausen GmbH | Fridge and / or freezer |
| CN104990357B (en) | 2015-06-26 | 2018-03-23 | 青岛海尔股份有限公司 | The zone refrigeration control method and zone refrigeration control device of cold compartment of refrigerator |
| CN105182768A (en) * | 2015-08-17 | 2015-12-23 | 惠州莫思特科技有限公司 | Intelligent control system |
| US10088218B2 (en) | 2015-09-02 | 2018-10-02 | Lg Electronics Inc. | Refrigerator and control method thereof |
| WO2018230925A1 (en) * | 2017-06-12 | 2018-12-20 | Lg Electronics Inc. | Refrigerator and method of controlling the same |
| KR102496303B1 (en) * | 2017-06-12 | 2023-02-07 | 엘지전자 주식회사 | Refrigerator and method for controlling the same |
| CN111412705A (en) * | 2020-04-15 | 2020-07-14 | 珠海格力电器股份有限公司 | Preservation refrigerator and control method thereof |
| CN111493593B (en) * | 2020-04-27 | 2021-09-03 | 海信容声(广东)冷柜有限公司 | Refrigerated display cabinet and control method thereof |
| CN113418351B (en) * | 2021-07-27 | 2022-11-11 | 河南新飞制冷器具有限公司 | Control method for judging food quantity for refrigerator |
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| GB1172485A (en) * | 1967-08-31 | 1969-12-03 | Matsushita Electronics Corp | Temperature Control System for Electric Refrigerator |
| DE2125053A1 (en) * | 1970-05-23 | 1971-12-09 | Industrie A. Zanussi S.P.A., Pordenone (Italien) | Temperature control device for refrigerators with two temperatures |
| US3691782A (en) * | 1970-06-30 | 1972-09-19 | Walter U Holzer | Refrigerator thermostat and arrangement thereof |
| IT1112399B (en) * | 1979-03-22 | 1986-01-13 | Eurodomestici Ind Riunite | ELECTRONIC THERMOSTATIC DEVICE FOR REFRIGERATORS |
| IT1193709B (en) * | 1980-07-31 | 1988-08-24 | Indesit | INTERNAL TEMPERATURE REGULATION DEVICE FOR REFRIGERATION APPLIANCES |
| JPS5915782A (en) * | 1982-07-19 | 1984-01-26 | 株式会社東芝 | Temperature controller for refrigerator |
| GB2148554B (en) * | 1983-10-25 | 1987-03-04 | Contrology Tech Ltd | Temperature sensors |
| GB8429904D0 (en) * | 1984-11-27 | 1985-01-03 | Barker George & Co Ltd | Temperature controls of refrigerated cabinets |
-
1988
- 1988-01-22 KR KR1019880000457A patent/KR930004397B1/en not_active IP Right Cessation
- 1988-02-08 MY MYPI88000118A patent/MY103196A/en unknown
- 1988-02-10 GB GB8803049A patent/GB2201014B/en not_active Expired - Fee Related
- 1988-02-12 CN CN88100827A patent/CN1012521B/en not_active Expired
-
1991
- 1991-09-12 HK HK741/91A patent/HK74191A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128971C (en) * | 1997-07-31 | 2003-11-26 | 三星电子株式会社 | Refrigerator having device for opening/closing cool air supply ports and method for controlling the same |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2201014A (en) | 1988-08-17 |
| CN88100827A (en) | 1988-10-19 |
| KR930004397B1 (en) | 1993-05-27 |
| HK74191A (en) | 1991-09-20 |
| GB2201014B (en) | 1991-06-05 |
| MY103196A (en) | 1993-05-29 |
| KR880010299A (en) | 1988-10-08 |
| GB8803049D0 (en) | 1988-03-09 |
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