CN108351143A - Storage device - Google Patents
Storage device Download PDFInfo
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- CN108351143A CN108351143A CN201680064084.2A CN201680064084A CN108351143A CN 108351143 A CN108351143 A CN 108351143A CN 201680064084 A CN201680064084 A CN 201680064084A CN 108351143 A CN108351143 A CN 108351143A
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- Prior art keywords
- temperature
- storage
- cooling
- receiving room
- control
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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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
-
- 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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- 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)
Abstract
Storage device has storage indoor temperature transmitter (31) and control unit (50).It stores indoor temperature transmitter (31) and detects the indoor temperature of storage.Control unit (50) controls the driving to carrying out cooling cooling device (20) in receiving room based on set temperature.Control unit (50) has the temperature threshold for being set to the temperature higher than set temperature, in the case where storing indoor temperature more than temperature threshold, control unit (50) executes cooling control, cooling control is to drive cooling device (20) so that the control hastily cooled down in receiving room, in the case where storing indoor temperature less than temperature threshold, control unit (50) executes soft landing control, and soft landing control is to drive cooling device (20) so that compared to control gently cooling in cooling control receiving room.A kind of storage device that can avoid the supercooling of storage item and cooling velocity is made to improve is provided as a result,.
Description
Related application it is cross-referenced
The application is based on Japanese patent application 2015-216690 filed in 4 days November in 2015, and by the disclosure
Content is used as reference to be incorporated into the application.
Technical field
The present invention relates to a kind of storage devices with refrigerating function.
Background technology
In the past, as this storage device, there is the device recorded in patent document 1.Storage dress recorded in patent document 1
It sets and has：Store the receiving room of food；To carrying out cooling cooling device in receiving room；Detection is stored in the case of indoor temperature
Thermistor；And the action of control cooling device is so that store the control unit that indoor temperature is set temperature.Control unit
After so that cooling device is acted so that storing indoor temperature as the remaining thermal venting temperature lower than set temperature, make cooling dress
Action is set so that it is set temperature to store indoor temperature.
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2015-81698 bulletins
However, in storage device recorded in patent document 1, due to storing the variation pattern of indoor temperature according to receipts
It is contained in the type of the food of receiving room and different, it is therefore desirable to suitably set remaining thermal venting temperature.For example, when waste heat eliminates temperature
Degree causes to carry out sub-cooled to food when being set as the temperature lower than temperature appropriate, thus exist generate food freezing this
The worry of the problem of sample.In addition, when remaining thermal venting temperature is set as the temperature higher than temperature appropriate, exist food cooling
To the worry of the required time long life of set temperature.Therefore, it is necessary to suitably be set the operation of remaining thermal venting temperature.
This become make that the convenience of storage device reduces will be because.
In addition, such case is not limited to the storage device of storage food, food, vegetable are stored in the state of cooling
It is common in the storage device of fruit, pharmaceuticals etc..
Invention content
The present invention makes in view of such truth, its purpose is to provide a kind of storage device, can avoid receiving
It receives the supercooling of object, and cooling velocity is made to improve.
A mode according to the present invention, storage device have temperature detecting part and control unit in volume receiving room.In receiving room
Indoor temperature is stored in temperature detecting part detection.Control unit is controlled based on set temperature to carrying out cooling cooling in receiving room
The driving of device.Control unit has the temperature threshold for being set to the temperature higher than set temperature, exists storing indoor temperature
In the case of more than temperature threshold, control unit executes cooling control, and cooling control is driving cooling device so that receiving room
The control inside hastily cooled down, in the case where storing indoor temperature less than temperature threshold, control unit executes soft landing control,
Soft landing control is to drive cooling device so that compared to control gently cooling in cooling control receiving room.
According to the structure, until reaching temperature threshold until storing indoor temperature due to executing cooling control, energy
Enough indoor temperature, which will be stored, is hastily reduced to temperature threshold.Therefore, it is possible to make cooling velocity improve.In addition, in receiving room
Interior temperature executes soft landing control after reaching temperature threshold, and set temperature is gradually lowered to store indoor temperature,
Therefore it can also avoid being accommodated in the supercooling for storing indoor storage item.
In accordance with the invention it is possible to avoid the supercooling of storage item, and cooling velocity is made to improve.
Description of the drawings
Fig. 1 is the sectional view of the outline structure for the storage device for indicating embodiments of the present invention.
Fig. 2 is the block diagram of the structure of the cooling device for the storage device for showing schematically embodiment.
Fig. 3 is the block diagram of the electrical structure for the storage device for indicating embodiment.
Fig. 4 is the flow chart of the sequence for the processing for indicating to be executed by the control unit of the storage device of embodiment.
Fig. 5 is the curve graph of the passage of the indoor temperature of storage in the storage device for indicate embodiment.
Fig. 6 is the curve graph of the passage of the temperature of the storage item in the storage device for indicate embodiment.
Fig. 7 is the figure for modeling the hot revenue and expenditure of the storage device of embodiment.
Fig. 8 be relatively and indicate the indoor temperature of storage in the storage device of embodiment passage and comparative example receipts
The curve graph of the passage for the indoor temperature of storage received in device.
Fig. 9 be relatively and indicate storage item in the storage device of embodiment core temperature passage and comparative example receipts
The curve graph of the passage of the core temperature for the storage item received in device.
Specific implementation mode
Hereinafter, the embodiment to storage device illustrates.As shown in Figure 1, the storage device 1 of present embodiment has
There is refrigerating function, for preserving the storage items 2 such as food, vegetables and fruits, pharmaceuticals in the state of cooling.Storage device 1 has receipts
Receive box main body 10 and cooling device 20.
Storage box main body 10 is made of the component of the box-like with thermal insulation.It is formed with receipts in the inside of storage box main body 10
Receive room 11.It is formed with opening portion 11a in the one side of receiving room 11.In opening portion, 11a is provided with insulated door 12.It is exhausted by opening
Hot topic 12 and storage item 2 can be accommodated in receiving room 11.It can be sealed in receiving room 11 by closing insulated door 12,
Storage item 2 is preserved in the state of cooling.Hereinafter, for convenience, the length direction of receiving room 11 is indicated with arrow x.With arrow y
Indicate the width direction of receiving room 11.The short transverse of receiving room 11 is indicated with arrow z.
The bottom surface sections 11b of receiving room 11 is provided with the mounting component 13 for loading storage item 2.Mounting component 13 passes through
Such as multiple T tracks are constituted, and have flat part 13a and upright portion 13b.Flat part 13a is arranged to the bottom with receiving room 11
Part parallel facial 11b.In flat part, the upper surface of 13a is placed with storage item 2.Upright portion 13b is from flat part 13a to receipts
The part that the bottom surface sections 11b of room 11 that receives extends.Upright portion 13b is spaced as defined in being separated in storage chamber width direction y configured with more
It is a.By by the bottom surface sections in upright portion 13b, 13b adjacent storage chamber width direction y, flat part 13a and receiving room 11
Space that 11b is marked off and be formed with air flue 17.In flat part, the end of 12 side of insulated door of 13a is formed with air discharge
Mouth 19.Air flue 17 is connected to receiving room 11 via the air outlet 19.
The back part 11d of dividing plate 15 and receiving room 11 is set to receiving room 11 with gap as defined in having.Dividing plate 15
It is configured to extend from mounting component 13 along receiving room short transverse z.By being drawn by the back part 11d and dividing plate 15 of receiving room 11
The space that separates and form air flue 16.Air flue 16 is connected to air flue 17.In the upper end of dividing plate 15 and receipts
Receive room 11 upper surface 11c between be formed with air taking mouth 18.Receiving room 11 is with air flue 16 via the air taking mouth
18 connections.
Cooling device 20 cools down the air in receiving room 11 by refrigeration cycle.Specifically, as shown in Fig. 2,
Cooling device 20 has evaporator 21, compressor 22, condenser 23, expansion valve 24.These elements are by being piped connection circlewise.
Refrigerant is via piping in each element cycle.
Compressor 22 attracts and compresses the refrigerant being discharged from evaporator 21, and compressed high temperature is discharged to condenser 23
Refrigerant.As shown in Figure 1, condenser 23 is configured at the outside of storage box main body 10.Condenser 23 is by making in internal flow
Refrigerant and store box main body 10 outside air between carry out heat exchange, and the refrigerant of compressed high temperature is carried out
It is cooling.Expansion valve 24 depressurizes the refrigerant after being cooled by being flowed in condenser 23.As shown in Figure 1, evaporator
21 are configured at air flue 16.Evaporator 21 by make the refrigerant in internal flow and the air that is flowed in air flue 16 it
Between carry out heat exchange, and the air flowed in air flue 16 is cooled down.
As shown in Figure 1, cooling device 20 has condenser fan 25 and blower fan 26.Condenser fan 25 is to condensation
Device 23 blows the air of the outside of storage box main body 10.Blower fan 26 blows the sky in air flue 16 to evaporator 21
Gas.Air in receiving room 11 is recycled by the blowing for air carried out by blower fan 26：Via air taking mouth
18, air flue 16, evaporator 21, air flue 17 and air outlet 19 and again return to receiving room 11.In this way
Air cycle, air after cooling imports receiving room 11 in evaporator 21, and the air in receiving room 11 is cooled.
Then, referring to Fig.1 and Fig. 3, the electrical structure of storage device 1 is illustrated.As shown in Figure 1, storage device 1 has
Standby outside air temperature sensor 30, storage indoor temperature transmitter 31, storage item temperature sensor 32, blowout temperature sensor 33,
Return to temperature sensor 34.The temperature To of the air of the outside of the detection storage box main body 10 of outside air temperature sensor 30, and it is defeated
Go out detection signal corresponding with the outside air temperature To detected.Store the temperature in the detection receiving room 11 of indoor temperature transmitter 31
Ti, and export detection signal corresponding with the temperature Ti in the receiving room 11 detected.In the present embodiment, in receiving room
Temperature sensor 31 is equivalent to temperature detecting part in receiving room.Storage item temperature sensor 32 detects the surface temperature of storage item 2
Tsk, and export detection signal corresponding with the temperature Tsk of storage item 2 detected.In the present embodiment, storage item temperature
Degree sensor 32 is equivalent to storage item temperature detecting part.The detection of temperature sensor 33 is blown out by 20 air after cooling of cooling device
Temperature, more specifically detect by the temperature of 21 air after cooling of evaporator, and export and blown with the evaporator detected
Go out the corresponding detection signals of temperature Tco.In the present embodiment, blowout temperature sensor 33 is equivalent to blowout temperature detecting part.
The temperature Tci that temperature sensor 34 detects the air being taken by evaporator 21 is returned, and exports and is taken with the evaporator detected
Enter the corresponding detection signals of temperature Tci.
As shown in figure 3, storage device 1 has operation portion 40 and control unit 50.Operation portion 40 is operated by user.User's energy
Enough temperature by being operable to operation portion 40 in setting such as receiving room 11.Hereinafter, the operation of operation portion 40 will be passed through
And the temperature set is known as " set temperature TA ".
(Electronic Control Unit/ are automatically controlled by the ECU that is constituted based on microcomputer for control unit 50
Unit) it constitutes.It is taken into the detection signal of each sensor 30~34 in control unit 50.Control unit 50 is based on each sensor 30~34
Detection signal come obtain outside air temperature To, the temperature Tsk of the temperature Ti in receiving room 11, storage item 2, evaporator blow out temperature
Tco and evaporator are taken into the quantity of state of the storage devices such as temperature Tci 1.Control unit 50 is by the sequential of the various quantity of states of acquisition
Data are stored in memory 51.In addition, being taken into the operation information of operation portion 40 in control unit 50.Control unit 50 is based on operation portion 40
Operation information obtain the set temperature TA in the receiving room 11 being for example set by the user.Control unit 50 is based on according to each sensing
The quantity of state for the storage device 1 that the detection signal of device 30~34 obtains and the operation information of operation portion 40, to control cooling device
The driving of 20 compressor 22, condenser fan 25 and blower fan 26.
Then, the control of the cooling device 20 carried out by control unit 50 is described in detail with reference to Fig. 4.In addition, control
Portion 50 processed executes processing shown in Fig. 4 repeatedly with defined calculating cycle.Cooling mark F is set as when cooling device 20 starts
On-state.
As shown in figure 4, first, as the processing of step S1, detection signal of the control unit 50 based on each sensor 30~34
Come obtain outside air temperature To, the temperature Tsk of the temperature Ti in receiving room 11, storage item 2, evaporator blowout temperature Tco and steaming
Hair device is taken into the various information such as temperature Tci.The processing of step S2 as the then processing of step S1, control unit 50 judge whether
In cooling.Specifically, in the case where cooling mark F is on-state, control unit 50 is judged as in cooling.
In cooling, affirmative determination is carried out in step s 2, as the processing of step S3 then, control
Portion 50 processed judges whether the temperature Ti in receiving room 11 is smaller than temperature threshold Tth.Temperature threshold Tth is redefined for than setting temperature
Spend the temperature of TA high specified values.Specified value is set as such as " 5 [DEG C] ".Due to when cooling device 20 starts in receiving room 11 not
It is cooling, thus in most cases the temperature Ti in receiving room 11 more than temperature threshold Tth.Temperature Ti in receiving room 11 exists
In the case of temperature threshold Tth or more, control unit 50 carries out negative evaluation in the processing of step S3, as step S4 then
Processing, execute cooling control.Cooling control is to drive cooling device 20 so that the control hastily cooled down in receiving room 11.
It is controlled as cooling, control unit 50 drives cooling device 20 to obtain for example predetermined cooling performance.It is predetermined cold
But performance is the maximum cooling performance of such as cooling device 20.As a result, due to when cooling device 20 starts in receiving room 11
It hastily cools down, therefore required cooling time can be shortened until the temperature Ti in receiving room 11 reaches set temperature TA.
Control unit 50 temporarily terminates a series of processing after the processing for performing step S4, and next calculating cycle again
It is secondary to execute processing shown in Fig. 4.
When the temperature Ti in the execution in cooling control in receiving room 11 is less than temperature threshold Tth, in step s3 into
Row affirmative determination, as the processing of step S5 then, control unit 50 calculates the temperature Ti in receiving room 11 from temperature threshold Tth
The presumed value Δ τ of required cooling time until reaching set temperature TA.For example, as shown in figure 5, in 1 receiving room 11 of time instant τ
In the case that interior temperature Ti reaches temperature threshold Tth, as in figure shown in double dot dash line, control unit 50 by analytic method outside
Insert the data of the temperature Ti in receiving room 11, the data of the temperature Ti of the receiving room 11 be from 1 pervious time instant τ 0 of time instant τ to
The data of memory 51 are stored in during time instant τ 1.The data of temperature Ti in receiving room 11 of the control unit 50 based on extrapolation come
Estimate τ 2 at the time of the temperature Ti in receiving room 11 reaches set temperature TA, and calculate from it is current at the time of τ 1 to time instant τ 2
Cooling time Δ τ.Time Δ τ is required until the temperature in receiving room 11 reaches set temperature TA from τ at the time of current 1
Cooling time presumed value.
As shown in figure 4, the processing of the step S6 as the then processing of step S5, control unit 50 calculates in receiving room 11
The temperature for the presumed value Tsk (τ 2) and storage item 2 that temperature Ti reaches the temperature of the storage item 2 at the time point of temperature threshold Tth becomes
Change presumed value dTsk (τ 2)/d τ of speed.For example, as shown in fig. 6, as shown in double dot dash line in figure, control unit 50 passes through parsing
The data of the temperature Tsk of method extrapolation storage item 2, the data of the temperature Tsk of the storage item 2 are the phases from time instant τ 0 to time instant τ 1
Between be stored in the data of memory 51.The data of the temperature Tsk of storage item 2 of the control unit 50 based on extrapolation, to calculate from current
At the time of the temperature of the storage item 2 at the time point of τ 2 at the time of have passed through the presumed value Δ τ of cooling time of τ 1 presumed value Tsk (τ
2).In addition, differential value of the control unit 50 by the temperature Tsk of the storage item 2 at the time point of calculating moment t2, so as to find out storage
Presumed value dTsk (τ 2)/d τ of the temperature changing speed of object 2.
As shown in figure 4, the processing of the step S7 as the then processing of step S6, temperature of the control unit 50 based on storage item 2
Presumed value dTsk (τ 2)/d τ of the presumed value Tsk (τ 2) of degree and the temperature changing speed of storage item 2, to calculate in receiving room 11
Receiving rooms 11 of temperature Ti at the time of reach temperature threshold Tth when τ 2 in temperature changing speed presumed value dTi (τ 2)/d
τ.The computational methods of presumed value dTi (τ 2)/d τ of temperature changing speed in receiving room 11 are as follows.
Fig. 7 is the model for indicating the hot revenue and expenditure in receiving room 11.In model shown in Fig. 7, " Ga indicates blower fan
26 air quantity." ε t " indicates the heat exchanger effectiveness of evaporator 21." Tri " indicates the temperature of the refrigerant flowed into evaporator 21.
" Kbox " indicates the coefficient of overall heat transmission of receiving room 11." Fbox " indicates the heat transfer area of receiving room 11." Kfv " indicates the biography of storage item 2
Heating rate." Ffv " indicates the heat transfer area of storage item 2." Tcr " indicates temperature, that is, core temperature of the central part of storage item 2.
In model shown in Fig. 7, relational expression f1 below is set up.In addition, in formula f1 below, it is assumed that storage item 2
Temperature it is the same, that is, assume storage item 2 core temperature Tcr it is identical with the surface temperature Tsk of storage item 2.
GaCpa ε t (Ti-Tri) d τ
=-MfvdTsk-Cpa ρ aVadTi
+ KboxFbox (To-Ti) d τ
+ KfvFfv (Tsk-Ti) d τ (f1)
In addition, in formula f1, " Cpa " indicates the specific heat at constant pressure of air." Mfv " indicates the thermal capacity of storage item 2." ρ a " table
Show atmospheric density." Va " indicates the volume of receiving room 11, in other words indicates the volume of air in receiving room 11.
The left side of formula f1 indicates to make between air and refrigerant in receiving room 11 with rate of heat exchange ε t in evaporator 21
The heat in the case of heat exchange is carried out, there is the air in receiving room 11 temperature Ti, refrigerant to flow into and have to evaporator 21
Temperature Tri.The first item on the right of formula f1 indicates the heat of the temperature change point of storage item 2.The Section 2 table on the right of formula f1
Show the heat of the temperature change point in receiving room 11.The Section 3 on the right of formula f1 indicates that d τ pass through containing box master per unit time
Heat of the outer wall of body 10 from outside intrusion.The Section 4 of formula f1 indicate per unit time d τ from storage item 2 into receiving room 11
The heat of releasing.
By being deformed to formula f1, the relational expression of the hot revenue and expenditure as time instant τ 2 can obtain formula f2 below.
DTi (τ 2)/τ=1/ d (Cpa ρ aVa)
{-Mfv (dTsk (τ 2)/d τ)
+ KboxFbox (To (τ 2)-Ti (τ 2))
+ KfvFfv (Tsk (τ 2)-Ti (τ 2))
- GaCpa ε t (Ti (τ 2)-Tri (τ 2)) } (f2)
Control unit 50 calculates presumed value dTi (τ 2)/d τ of the temperature changing speed in receiving room 11 using formula f2.Specifically
For, it is assumed that the outside air temperature To (τ 2) of time instant τ 2 is identical as current outside air temperature To (τ 1), and control unit 50 will be by outer temperature
The current outside air temperature To (τ 1) that degree degree sensor 30 detects is used as outside air temperature To (τ 2).In addition, due to estimating time instant τ 2
When receiving room 11 in temperature Ti (τ 2) reach set temperature TA, therefore set temperature TA is used as receiving room 11 by control unit 50
Interior temperature Ti (τ 2).In addition, when executing cooling control, cooling device 20 is driven with predetermined cooling performance,
Therefore the temperature Tri of the refrigerant flowed into evaporator 21 becomes the feelings that cooling device 20 is operated with predetermined cooling performance
The temperature of refrigerant under condition.In the present embodiment, the cooling temperature for controlling refrigerant in execution first passes through experiment etc. in advance
It measures.The temperature of the refrigerant of measured in advance is used as the temperature Tri (τ 2) of the refrigerant of time instant τ 2 by control unit 50.About this with
Outer parameter uses the constant for being pre-stored within memory 51.
As a result, control unit 50 is by the presumed value of the temperature of the storage item 2 obtained in the processing of step S7 shown in Fig. 4
The presumed value dTsk (τ 2) of the temperature changing speed of Tsk (τ 2) and storage item 2/d τ substitute into formula f2, so as to calculate receiving room
Presumed value dTi (τ 2)/d τ of temperature changing speed in 11.
The processing of step S8 as the then processing of step S7, control unit 50 judge the speed of the temperature change in receiving room 11
Whether specific rate threshold alpha is big by presumed value dTi (τ 2)/d τ of degree.In addition, threshold speed α is negative value.Threshold speed α passes through experiment
It, can be by the temperature in receiving room 11 even if can judge if in the case where continuously carrying out cooling control etc. presetting into
Converge on set temperature TA.In addition, threshold speed α can also be based on the receipts of the detection signal acquisition by each sensor 30~34
The quantity of state of device 1 received is set.
However, it is contemplated that method control as follows：It is executed until the temperature Ti in receiving room 11 reaches set temperature TA cold
But it controls, the time point that the temperature Ti in receiving room 11 reaches set temperature TA shifts to usual control.Usually control be as
Lower control：It is driven for example, by blowing out the feedback controls such as the PID control of deviation of temperature Tco and set temperature TA based on evaporator
The control of the compressor 22 of dynamic cooling device 20 etc..Since cooling control is to make control hastily cooling in receiving room 11, because
There is the case where being difficult to be cooled to the center portion thereof because of the type of storage item 2 in this.It is usually controlled being transferred to from cooling control
In the case that the central part of time point storage item 2 is not sufficiently cooled, there are the temperature Ti of receiving room 11 because from storage item 2 to receipts
Receive the heat and the worry for deviateing set temperature TA that room 11 distributes.
On the other hand, in the case where the central part of storage item 2 is not sufficiently cooled, due to dissipating again by storage item 2
Heat and heat in receiving room 11, therefore the temperature changing speed dTi/d τ in receiving room 11 are slack-off.Therefore, by judging receiving room
Whether specific rate threshold alpha is big by presumed value dTi (τ 2)/d τ of temperature changing speed in 11, can determine whether be in receiving room
The time point that temperature Ti in 11 reaches set temperature TA is easy to carry out the situation of storage item 2 to radiate again.
Therefore, the presumed value dTi (τ 2) of the temperature changing speed in receiving room 11/big situation of d τ specific rate threshold alphas
Under, the control unit 50 of present embodiment carries out affirmative determination in the judgement processing of step S8.In this case, control unit 50 is sentenced
It is the situation to radiate again for easy ting produce storage item 2 to be set to, and the processing as step S9 executes soft landing control.Soft landing controls
It is to drive cooling device 20 so that compared to control more cooling in cooling control receiving room 11.Specifically, soft
Landing Control be by the feedback control of the deviation based on temperature Ti and set temperature TA in receiving room 11, in particular by
PID control, come the control for driving the compressor 22 of cooling device 20 equal.Control unit 50 executes soft landing control until receiving room 11
Until interior temperature Ti reaches set temperature TA.Temperature Ti while storage item 2 is gradually cooling as a result, in receiving room 11 is close
Set temperature TA, therefore the core temperature Tcr of storage item 2 can be made close to set temperature TA.As a result, even if in receiving room 11
Interior temperature Ti reaches time point of set temperature TA from the case that cooling control is transferred to usually control, in receiving room 11
Temperature Ti is also difficult to deviate set temperature.
The processing of step S10 as the then processing of step S9, control unit 50 will cool down mark F be set to OFF shape
After state, terminate a series of processing.In this case, it is executed shown in Fig. 4 by control unit 50 when in next calculating cycle
Processing when, control unit 50 step S2 judgement processing in carry out negative evaluation, as step S12 then processing execute
Usually control.
On the other hand, presumed value dTi (τ 2)/d τ of the temperature changing speed in receiving room 11 are below threshold speed α
In the case of, control unit 50 carries out negative evaluation in the judgement processing of step S8.In this case, control unit 50 be determined as be
It is difficult to generate the situation of storage item 2 to radiate again, as the processing of step S11, persistently carries out cooling control until receiving room 11
Until interior temperature Ti reaches set temperature TA.Reach set temperature TA thereby, it is possible to the temperature Ti shortened in receiving room 11 and be
The only required time.In addition, due to being to be difficult to generate the situation of storage item 2 to radiate again, even if in receiving room 11
Temperature Ti reach time point of set temperature TA from the case that cooling control is transferred to usually control, the temperature in receiving room 11
Degree Ti is also difficult to deviate set temperature TA.Therefore, it is possible to control the temperature Ti in receiving room 11 at set temperature TA.
The processing of step S10 as the then processing of step S11, control unit 50 will cool down mark F be set to OFF
After state, terminate a series of processing.In the situation, executed shown in Fig. 4 by control unit 50 when in next calculating cycle
Processing, control unit 50 carries out negative evaluation in the judgement processing of step S2, and the processing as step S12 then executes logical
Often control.
Then, the effect of the storage device of present embodiment 1 is illustrated.
In fig. 8, the variation of the temperature Ti in the receiving room 11 in the storage device 1 of present embodiment indicated by the solid line,
And the variation of the temperature Ti in the receiving room 11 in the storage device of its comparative example is indicated with double dot dash line.In the receipts of comparative example
It receives in device, executes cooling control until reaching set temperature TA, and at the time point for reaching set temperature TA to logical
Often control transfer.In addition, in the storage device of comparative example, in the execution usually controlled, as the temperature Ti in receiving room 11
Cooling control is executed when more than temperature threshold Tth again.
As shown in the double dot dash line of Fig. 8, the storage device of comparative example executes cooling control, the temperature in receiving room 11
At the time of Ti reaches set temperature TA until τ 11.In this case, when the central part of the time point storage item 2 in time instant τ 11 not
When cooled, the temperature Ti in receiving room 11 rises because of the heat distributed from storage item 2.Also, the temperature in receiving room 11
Ti executes cooling control again when time instant τ 12 is more than temperature threshold Tth.After, in the storage device of comparative example, repeatedly
While executing cooling control and usually control, the temperature Ti in receiving room 11 converges on set temperature TA.
On the other hand, shown in solid such as Fig. 8, in the storage device 1 of present embodiment, the temperature in receiving room 11
Ti reaches the time point of temperature threshold Tth in time instant τ 10, executes soft landing control, therefore after time instant τ 10, receiving room 11
Interior temperature Ti gradually converges on set temperature TA.It is cold thereby, it is possible to avoid executing repeatedly as the storage device of comparative example
But the situation for controlling and usually controlling, therefore the power loss of compressor 22 can be reduced.Further, additionally it is possible to inhibit due to control
The long life for the cooling time that the switching of system generates.
In addition, in fig.9, the change of the core temperature of the storage item 2 in the storage device 1 of present embodiment indicated by the solid line
Change, and indicates with double dot dash line the variation of the core temperature of storage item in the storage device of comparative example.As shown in figure 9, with than
Storage device compared with example is compared, and the storage device 1 of present embodiment can will be until the core temperature convergence of storage item 2 is in setting temperature
The time for spending TA shortens stipulated time Δ τ 10.
The storage device 1 of present embodiment from the description above can be obtained and be acted on shown in (1) below~(6)
And effect.
(1) in the case that the temperature Ti in receiving room 11 is more than temperature threshold Tth, control unit 50 executes cooling control
System.Thereby, it is possible to make the temperature Ti in receiving room 11 hastily be reduced to temperature threshold Tth, therefore cooling velocity can be made to carry
It is high.In addition, in the case that the temperature Ti in receiving room 11 is less than temperature threshold Tth, control unit 50 executes soft landing control.By
This, can make the temperature Ti in receiving room 11 be gradually lowered to set temperature TA, therefore can be avoided the supercooling of storage item 2.
(2) data of the control unit 50 based on the temperature Ti in receiving room 11, the temperature Ti to calculate in receiving room 11 reach
Presumed value dTi (τ 2)/d τ of the temperature changing speed in receiving room 11 when set temperature TA, the temperature Ti in the receiving room 11
Data be until the temperature Ti in receiving room 11 reaches temperature threshold Tth by store indoor temperature transmitter 31 detect
The data gone out.When the temperature Ti in receiving room 11 reaches temperature threshold Tth, temperature changing speed in receiving room 11 pushes away
In the case that definite value dTi (τ 2)/d τ specific rate threshold alphas are big, control unit 50 executes soft landing control.Temperature in receiving room 11
Presumed value dTi (τ 2)/d τ of pace of change are below in threshold speed α, and control unit 50 persistently carries out cooling control.By
This, is in the case where that the temperature Ti in receiving room 11 can be made to converge on the situation of set temperature TA not executing soft landing control,
Cooling control is persistently carried out, therefore cooling time can be shortened.
(3) data of the control unit 50 based on the temperature Ti in receiving room 11 should to calculate the presumed value Δ τ of cooling time
The data of temperature Ti in receiving room 11 are to pass through receiving room until the temperature Ti in receiving room 11 reaches temperature threshold Tth
The data that interior temperature sensor 31 detects.In addition, data of the control unit 50 based on the temperature Ti in receiving room 11 and it is cooling when
Between presumed value Δ τ, the temperature Ti to calculate in receiving room 11 reaches the temperature of the storage item 2 at the time point of set temperature TA
Presumed value dTsk (τ 2)/d τ of the temperature changing speed of presumed value Tsk (τ 2) and storage item 2, the temperature Ti in the receiving room 11
Data be until the temperature Ti in receiving room 11 reaches temperature threshold Tth by store indoor temperature transmitter 31 detect
The data gone out.Also, the presumed value Tsk (τ 2) of temperature of the control unit 50 based on storage item 2 and the temperature changing speed of storage item 2
Presumed value dTsk (τ 2)/d τ, to calculate presumed value dTi (τ 2)/d τ of the temperature changing speed in receiving room 11.As a result, can
Enough presumed value dTi (τ 2)/d τ for precisely calculating the temperature changing speed in receiving room 11, therefore, the result is that being capable of essence
Degree is made whether to execute the judgement of soft landing control well.
(4) it is used as soft landing to control, control unit 50 is executed based on the inclined of the temperature Ti and set temperature TA in receiving room 11
The feedback control of difference.Thereby, it is possible to so that the temperature Ti in receiving room 11 is gradually converged on set temperature TA.
(5) as cooling control, control unit 50 drives cooling device 20 to obtain predetermined cooling performance.As a result,
It can be hastily to being cooled down in receiving room 11.
(6) control unit 50 executes cooling control or feedback control as usually control, which is by soft
The execution of land control and in the case of so that the temperature Ti in receiving room 11 is reached set temperature TA, temperature is blown out based on evaporator
The feedback control of the deviation of Tco and set temperature TA.Thereby, it is possible to the temperature Ti in receiving room 11 is easily held in setting
Temperature TA.
In addition, the above embodiment can also be implemented in such a way.
The implementation usually controlled can be suitably changed.For example, as usual control, control unit 50 can also
Execute the feedback control of the deviation based on temperature Ti and set temperature TA in receiving room 11.In short, usually control is to be based on setting
Constant temperature degree TA controls the control of the driving of cooling device 20.
The implementation of cooling control can be suitably changed.For example, being controlled as cooling, control unit 50 can also
The feedback oscillators such as PID gains are changed, so that the cooling capacity of cooling device 20 is improved compared to usual control.In short, cooling
Control is to drive cooling device 20 so that the control hastily cooled down in receiving room 11.
The implementation of soft landing control can be suitably changed.For example, being controlled as soft landing, control unit 50
The feedback control of the comparison based on evaporator blowout temperature Tco and set temperature TA can be executed.In short, soft landing control is to drive
Dynamic cooling device 20 is so that compared to control gently cooling in cooling control receiving room 11.
Control unit 50 can also based on the data of the temperature Ti in the receiving room 11 of extrapolation, come calculate time instant τ 2 when
Between temperature Ti in the receiving room 11 put differential value, so as to find out the presumed value dTi of the temperature changing speed in receiving room 11
(τ2)/dτ.As a result, due to that can be easy to calculate presumed value dTi (τ 2)/d τ of the temperature changing speed in receiving room 11,
The computation burden of control unit 50 can be mitigated.
Control unit 50 can also always execute soft in the case where the temperature Ti in receiving room 11 is less than temperature threshold Tth
Landing Control.That is, in the process shown in fig. 4, point situation that can also omit step S8 is handled.
As the method for the temperature Ti in detection receiving room 11, it is not limited to straight by storing indoor temperature transmitter 31
The method for connecing detection can also use and be taken into temperature Tci according to evaporator blowout temperature Tco and evaporator and utilize and for example map
The method of equal calculatings.
It is not limited to as coefficient of overall heat transmission Kbox, Kfv, parameters, the control unit 50 such as heat transfer area Fbox, Ffv in formula f2
Using the information for being pre-stored within memory 51, the input value of such as operation portion 40 can also be used.As a result, since user can
The various parameters of customized type f2 are easy, therefore convenience can be made to improve.
It is shown in Fig. 7 to indicate that the model of hot revenue and expenditure be suitably changed.For example, it is also possible to using further adding
There is the model for entering hot, blower fan 26 calorific value of motor etc. that the leakage air of receiving room 11 generates.In addition, root
According to the model used, the calculating of presumed value dTi (τ 2)/d τ of the temperature changing speed in receiving room 11 can also be suitably changed
Formula.
Before the temperature Ti of receiving room 11 reaches temperature threshold Tth, control unit 50 can also calculate cooling time
The presumed value Tsk (τ 2) of the temperature of presumed value Δ τ, storage item 2, the temperature changing speed of storage item 2 presumed value dTsk (τ 2)/
Presumed value dTi (τ 2)/d τ of d τ and the temperature changing speed in receiving room 11.Specifically, for example, in receiving room 11
Before temperature reaches temperature threshold Tth, control unit 50 is based on the receiving room 11 detected by storing indoor temperature transmitter 31
The data of interior temperature Ti, to calculate each presumed value.
The function that control unit 50 is provided can be by being stored in the software of the storage device of entity and executing the software
Computer, only software, only hardware or these combination provide.Such as in control unit 50 by the electronic circuit as hardware
In the case of offer, the function that control unit 50 is provided can pass through the digital circuit comprising multiple logic circuits or simulation electricity
Road provides.
The present invention is not limited to above-mentioned concrete examples.That is, those skilled in the art increase suitably in above-mentioned concrete example
The structure of design alteration is also contained in the scope of the present invention as long as having the feature of the present invention.For example, above-mentioned each concrete example
Each element being had and its configuration, condition etc. are not limited to the case where illustrating and can be suitably changed.In addition, above-mentioned
Each element that embodiment has can combine as long as being technically possible, as long as the structure of these combinations is including the present invention
Feature be then also contained in the scope of the present invention.
The present invention is described according to embodiment, it should be understood that the present invention is not limited to the embodiment, constructions.This
Invention is also comprising the deformation in various variations, equivalency range.Also, it is various combinations, mode, further
Including the only one element in these, this is above, this other combination, modes below are also in scope of the invention, thought range
It is interior.
Claims (6)
1. a kind of storage device, which is characterized in that have：
Temperature detecting part (31) in receiving room, the temperature in the receiving room in temperature detecting part detection receiving room (11)；And
Control unit (50), the control unit are controlled based on set temperature to carrying out cooling cooling device (20) in the receiving room
Driving,
The control unit has the temperature threshold for being set to the temperature higher than the set temperature,
In the case where the indoor temperature of storage is more than the temperature threshold, the control unit executes cooling control, should
Cooling control is the driving cooling device so that control hastily cooling in the receiving room,
In the case where the indoor temperature of storage is less than the temperature threshold, the control unit executes soft landing control, should
Soft landing control is the driving cooling device so that gently cooling compared in the cooling control receiving room
Control.
2. storage device according to claim 1, which is characterized in that
Data of the control unit based on the indoor temperature of the storage reach described calculating the indoor temperature of storage and set
The data of the presumed value of the indoor temperature changing speed of storage when constant temperature is spent, the indoor temperature of storage are until institute
The data stored and detected by temperature detecting part in the receiving room until indoor temperature reaches the temperature threshold are stated, when
When the indoor temperature of storage reaches the temperature threshold, in the presumed value ratio speed of the indoor temperature changing speed of storage
In the case that degree threshold value is big, the control unit executes the soft landing control,
Presumed value in the indoor temperature changing speed of storage is below in threshold speed, and the control unit continues
Carry out the cooling control.
3. storage device according to claim 2, which is characterized in that
It is also equipped with storage item temperature detecting part (32), storage item temperature detecting part detection is accommodated in the indoor storage of storage
The temperature of object,
Data of the control unit based on the indoor temperature of the storage reach described calculating the indoor temperature of storage and set
The data of the presumed value of required cooling time until constant temperature degree, the indoor temperature of storage are until in the receiving room
Temperature reach the temperature threshold until the data that are detected by temperature detecting part in the receiving room, also,
The data and the presumed value of the cooling time of temperature of the control unit based on the storage item, to calculate in the receipts
Indoor temperature of receiving reaches the presumed value of the temperature of the storage item at the time point of the set temperature and the storage item
The data of the presumed value of temperature changing speed, the temperature of the storage item are until the indoor temperature of storage reaches the temperature
The data detected by the storage item temperature detecting part until degree threshold value,
The presumed value of the presumed value of temperature of the control unit based on the storage item and the temperature changing speed of the storage item,
To calculate the presumed value of the indoor temperature changing speed of storage.
4. storage device according to any one of claims 1 to 3, which is characterized in that
It is controlled as the soft landing, the control unit executes inclined based on the indoor temperature of storage and the set temperature
The feedback control of difference.
5. storage device according to any one of claims 1 to 4, which is characterized in that
As the cooling control, the control unit drives the cooling device to obtain predetermined cooling performance.
6. storage device according to any one of claims 1 to 5, which is characterized in that
It is also equipped with blowout temperature detecting part (33), the temperature of air after blowout temperature detecting part detection is cooled down by the cooling device
Degree,
The indoor temperature of storage is set to reach the setting by executing the cooling control or the soft landing controls
When temperature, the control unit executes the deviation of temperature and the set temperature based on the air blown out from the cooling device
Feedback control.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015216690A JP6406214B2 (en) | 2015-11-04 | 2015-11-04 | Storage device |
| JP2015-216690 | 2015-11-04 | ||
| PCT/JP2016/080055 WO2017077818A1 (en) | 2015-11-04 | 2016-10-11 | Storing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108351143A true CN108351143A (en) | 2018-07-31 |
| CN108351143B CN108351143B (en) | 2020-03-10 |
Family
ID=58661989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680064084.2A Expired - Fee Related CN108351143B (en) | 2015-11-04 | 2016-10-11 | Storage device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6406214B2 (en) |
| CN (1) | CN108351143B (en) |
| WO (1) | WO2017077818A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6170363A (en) * | 1984-09-14 | 1986-04-11 | 株式会社日立製作所 | Controller for refrigerator |
| CN1354353A (en) * | 2000-11-22 | 2002-06-19 | Lg电子株式会社 | Cooling air channel device for refrigerator |
| CN1554004A (en) * | 2001-09-04 | 2004-12-08 | Bsh | Refrigerating appliance with cooling air circulation |
| US20110302938A1 (en) * | 2010-06-14 | 2011-12-15 | Lg Electronics Inc. | Control method for refrigerator |
| CN103534542A (en) * | 2011-05-09 | 2014-01-22 | 松下电器产业株式会社 | Refrigerator |
| WO2014185116A1 (en) * | 2013-05-17 | 2014-11-20 | シャープ株式会社 | Evaporator and refrigerator using same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2668320B2 (en) * | 1993-04-21 | 1997-10-27 | オリオン機械株式会社 | How to cool food in the refrigerator |
| JPH10325665A (en) * | 1997-05-23 | 1998-12-08 | Mitsubishi Electric Corp | Cooling device |
| ITPN20050020A1 (en) * | 2005-04-05 | 2006-10-06 | Electrolux Professional Spa | "FREEZER PERFECTED WITH NEUTRAL NETWORK" |
| JP5594425B2 (en) * | 2012-12-28 | 2014-09-24 | ダイキン工業株式会社 | Refrigeration equipment |
-
2015
- 2015-11-04 JP JP2015216690A patent/JP6406214B2/en not_active Expired - Fee Related
-
2016
- 2016-10-11 CN CN201680064084.2A patent/CN108351143B/en not_active Expired - Fee Related
- 2016-10-11 WO PCT/JP2016/080055 patent/WO2017077818A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6170363A (en) * | 1984-09-14 | 1986-04-11 | 株式会社日立製作所 | Controller for refrigerator |
| CN1354353A (en) * | 2000-11-22 | 2002-06-19 | Lg电子株式会社 | Cooling air channel device for refrigerator |
| CN1554004A (en) * | 2001-09-04 | 2004-12-08 | Bsh | Refrigerating appliance with cooling air circulation |
| US20110302938A1 (en) * | 2010-06-14 | 2011-12-15 | Lg Electronics Inc. | Control method for refrigerator |
| CN103534542A (en) * | 2011-05-09 | 2014-01-22 | 松下电器产业株式会社 | Refrigerator |
| WO2014185116A1 (en) * | 2013-05-17 | 2014-11-20 | シャープ株式会社 | Evaporator and refrigerator using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108351143B (en) | 2020-03-10 |
| JP2017089919A (en) | 2017-05-25 |
| WO2017077818A1 (en) | 2017-05-11 |
| JP6406214B2 (en) | 2018-10-17 |
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