CN104825016A - Low-temperature display cabinet - Google Patents
Low-temperature display cabinet Download PDFInfo
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- CN104825016A CN104825016A CN201510062081.2A CN201510062081A CN104825016A CN 104825016 A CN104825016 A CN 104825016A CN 201510062081 A CN201510062081 A CN 201510062081A CN 104825016 A CN104825016 A CN 104825016A
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Abstract
The invention provides a low-temperature display cabinet, and the cabinet can achieve accurate temperature display under the condition that a cooling environment changes, thereby achieving proper temperature management. An open-type display cabinet (1) achieves the blowing of cold air from an air outlet (6) into a display room (8) which is provided with a shelf (11) for displaying goods and a placement board (6), and achieves the inhaling of the cold are from an air inlet (17), thereby achieving the cooling of the display room (8). The open-type display cabinet (1) is provided with a blowing-out temperature detector (26) which is used for detecting the blowing-out temperature of cold air at the air outlet (6); a blowing-in temperature detector (27) which is used for detecting the blowing-in temperature of cold air at the air outlet (17); a temperature display (22) which is used for displaying the internal temperature of the display room (8); and a control device which is used for enabling a display unit to display the temperature based on the detection values of all temperature detectors. The control device calculates the temperature of the shelf (11) and the temperature of the placement board (6) based on the blowing-out temperature detected by the blowing-out temperature detector (26), the blowing-in temperature detected by the blowing-in temperature detector (27) and a specific correction value.
Description
Technical field
The present invention relates to low-temperature showcase, it by blowing out cold air from blow-off outlet in showroom and sucking from suction inlet, thus cools the commodity in the commodity display portion be displayed in showroom.
Background technology
In the past, as this kind of low-temperature showcase, especially open Showcase, there is the so-called horizontal low temperature showcase of the so-called vertical low temperature showcase of the front surface opening of showroom and the upper surface open of showroom.When vertical low temperature showcase, from the blow-off outlet blowout cold air being formed in opening upper limb (lateral margin), and suck (such as with reference to patent document 1) from the suction inlet being formed in opening lower edge (another lateral margin).On the other hand, in horizontal low temperature showcase, from the blow-off outlet blowout cold air being formed in the inboard edge (lateral margin) of opening, and suck from the suction inlet being formed in front lateral margin (another lateral margin), two kinds of low-temperature showcases are all form gas curtain at opening part, are set up in the multistage shelf in showroom or the commodity on shelf (being commodity display portion) cool (such as with reference to patent document 2) to being displayed in simultaneously.
In the control (control of display indoor temperature) of the in-cabinet temperature of this low-temperature showcase, the detected value (blowout temperature) based on the blowout temperature detector detected the temperature of the cold air blown out from blow-off outlet (blowout temperature sensor) carries out this control.Now, also there is such low-temperature showcase, it installs the inlet temperature detector (inlet temperature sensor) detecting and be sucked into the temperature of the cold air of suction inlet, is also taken into account by the detected value (inlet temperature) of this inlet temperature detector and carries out controlling (such as with reference to patent document 3).
On the other hand, to display in-cabinet temperature, then the top plate portion in showroom installs in-cabinet temperature detector (in-cabinet temperature sensor), shows the temperature that this in-cabinet temperature detector detects over the display.
Prior art document
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2010-71612 publication
Patent document 2: Japanese Unexamined Patent Publication 2000-245587 publication
Patent document 3: Japanese Unexamined Patent Publication 62-152171 publication
Summary of the invention
The problem that invention will solve
But especially when open Showcase, the temperature that there is showroom internal upper part is low, and the tendency that the temperature of bottom uprises because of being involved in of outside air.Therefore, the temperature that the in-cabinet temperature detector being arranged on the top plate portion in showroom detects than be positioned at the shelf below it or the temperature on shelf low, thus the value lower than the product temperature of reality can be shown.
Therefore, also consider with described patent document 3 for reference, carry out Temperature displaying blowout temperature or inlet temperature taken into account, but as previously mentioned, there is the various hull shape such as vertical or horizontal in low-temperature showcase, is therefore difficult to show actual product temperature (temperature on shelf or shelf).In addition, be provided with the lighting device thrown light in showroom in low-temperature showcase or covering the guard shield at night of closing openings at closing time, depending on these states, the cooler environment in showroom also can significantly change.
For in the past only based on in-cabinet temperature or blowout temperature, inlet temperature method for, be difficult to follow the tracks of this environmental change to carry out Temperature displaying accurately.Therefore, user can carry out in-cabinet temperature management (adjustment etc. of in-cabinet temperature setting) based on the Temperature displaying of mistake, expects to be improved.
The present invention completes to solve this technical problem in the past, its object is to provide a kind of low-temperature showcase, even if situation about changing at cooler environment also can carry out Temperature displaying accurately, thus can carry out suitable temperature treatment.
The scheme of dealing with problems
The low-temperature showcase of the solution of the present invention 1, by from blow-off outlet to have display goods commodity display portion showroom in blow out cold air and suck from suction inlet, thus cool in showroom, it comprises: blowout temperature detector, detects the blowout temperature of the cold air of blow-off outlet; Inlet temperature detector, detects the inlet temperature of the cold air of suction inlet; Display unit, for showing the temperature in showroom; And control device, based on the detected value of each temperature detector, make display unit displays temperature, and, the correction value of blowout temperature, inlet temperature that inlet temperature detector detects and regulation that this control device detects based on blowout temperature detector carrys out the temperature in computing commodity display portion, shows on the display unit.
The low-temperature showcase of scheme 2, it is in such scheme, possesses multiple commodity display portion in showroom, and the mean value of the temperature in each commodity display portion of control device computing also shows on the display unit.
The low-temperature showcase of scheme 3, it is in above-mentioned each scheme, and showroom is following open Showcase: at least one opening, is formed with blow-off outlet, and is formed with suction inlet at another lateral margin at a lateral margin of this opening.
The low-temperature showcase of scheme 4, it is in such scheme, control device use determine according to the hull shape of this low-temperature showcase hull shape correction value, according to the illumination correction value that the illuminating state of the lighting device thrown light in showroom is determined, with whether be covered according to guard shield at night and night of determining any one or they in guard shield correction value combination or they are whole, be used as correction value.
The low-temperature showcase of scheme 5, it is in such scheme, control device carrys out according to following formula (1) temperature that computing carries out showing on the display unit, that is: display temperature=blowout temperature+(inlet temperature-blowout temperature)/2 × hull shape correction value+illumination correction value on the display unit+night guard shield correction value ... (1).
The low-temperature showcase of scheme 6, it is in scheme 4, comprise the in-cabinet temperature detector of the in-cabinet temperature detected in showroom, control device carrys out according to following formula (2) temperature that computing carries out showing on the display unit, that is: display temperature on the display unit={ in-cabinet temperature+blowout temperature+(inlet temperature-blowout temperature)/2 × hull shape correction value }/2+ illumination correction value+night guard shield correction value ... (2).
The low-temperature showcase of scheme 7, it is in scheme 5 or scheme 6, and hull shape correction value is less than 1 when vertical low temperature showcase, is greater than the value of vertical low temperature showcase when horizontal low temperature showcase.
The low-temperature showcase of scheme 8, it is in scheme 4 to scheme 7, and when lighting device is lighted, illumination correction value works towards the direction of improving display temperature on the display unit.
The low-temperature showcase of scheme 9, it is in scheme 4 to scheme 8, and when night, guard shield was covered, night, guard shield correction value worked towards the direction of improving display temperature on the display unit.
The low-temperature showcase of scheme 10, it is in above-mentioned each scheme, control device when calculating display temperature on the display unit, for whether using correction value to switch.
The effect of invention
According to the present invention, low-temperature showcase by from blow-off outlet to have display goods commodity display portion showroom in blow out cold air and suck from suction inlet, thus cool in showroom, it comprises: blowout temperature detector, detects the blowout temperature of the cold air of blow-off outlet, inlet temperature detector, detects the inlet temperature of the cold air of suction inlet, display unit, for showing the temperature in showroom, and control device, based on the detected value of each temperature detector, displays temperature on the display unit, and, the blowout temperature that this control device detects based on blowout temperature detector, the correction value of the inlet temperature that inlet temperature detector detects and regulation carrys out the temperature in computing commodity display portion, and shown on the display unit, therefore, the invention of such as claim 4 is such, use the hull shape correction value determined according to the hull shape of this low-temperature showcase, according to the illumination correction value determined the illuminating state of the lighting device thrown light in showroom, with whether be covered according to guard shield at night and the night determined any one in guard shield correction value, or their combination or they are whole, be used as correction value, thus, the change of cooler environment can be followed and the temperature exactly on display of commodity Exhibition Department.
Thus, especially in the open Showcase as scheme 3, correct temperature treatment can be realized.In addition, when being provided with multiple commodity display portion in showroom, the mean value of the temperature in commodity display portion as each in computing scheme 2 also shows on the display unit, thus the temperature that can to show with the temperature in commodity display portion be representative.
And, as scheme 5, the temperature that computing shown on the display unit is carried out according to following formula (1), that is: display temperature=blowout temperature+(inlet temperature-blowout temperature)/2 × hull shape correction value+illumination correction value on the display unit+night guard shield correction value ... (1), can show on the display unit thus and utilize hull shape correction value and illumination correction value and [blow out temperature+(inlet temperature-blowout temperature)/2] of guard shield correction value at night to the medium temperature representing blow-off outlet and suction inlet to carry out revising gained, closer to the temperature of the temperature in commodity display portion.
And, as scheme 6, when possessing the in-cabinet temperature detector of the in-cabinet temperature detected in showroom, the temperature that computing shown on the display unit is carried out according to following formula (2), that is: display temperature on the display unit={ in-cabinet temperature+blowout temperature+(inlet temperature-blowout temperature)/2 × hull shape correction value }/2+ illumination correction value+night guard shield correction value ... (2), can use thus and the mean value of the value in-cabinet temperature in showroom and described medium temperature being multiplied by hull shape correction value gained [{ in-cabinet temperature+blowout temperature+(inlet temperature-blowout temperature)/2 × hull shape correction value }/2], realize the Temperature displaying more accurately also taken into account by the in-cabinet temperature of reality.
Now, as scheme 7, hull shape correction value is made to be less than 1 when vertical low temperature showcase, the value of vertical low temperature showcase is greater than when horizontal low temperature showcase, thus the temperature shown in vertical low temperature showcase can be made closer to blowout temperature, get rid of because of bottom outside air be involved in the impact (inlet temperature uprise and cause the impact that displays temperature becomes higher than the temperature in commodity display portion) caused, thus can temperature exactly on display of commodity Exhibition Department.
On the other hand, when horizontal low temperature showcase, because the increase ratio vertical low temperature showcase being involved in the inlet temperature caused of outside air is little, therefore, it is possible to hull shape correction value is larger than it to be tackled by making.
In addition, as scheme 8, when lighting device is lighted, as long as make illumination correction value work towards the direction of improving display temperature on the display unit, the temperature in the commodity display portion of rising under just can being presented at the impact of illumination exactly.
And, as scheme 9, when night, guard shield was covered, as long as make the direction of the temperature that night, guard shield correction value showed on the display unit towards raising work, just can get rid of night guard shield be covered and be involved in without outside air, thus eliminate the impact that temperature declines, thus can temperature exactly on display of commodity Exhibition Department.
And, as scheme 10, when calculating the temperature shown on the display unit, for whether using correction value to switch, thus, according to the management method of user, switching uses correction value, still only utilize blowout temperature and inlet temperature or also utilize in-cabinet temperature to carry out computing in addition, thus convenience improves.
Accompanying drawing explanation
Fig. 1 is the longitudinal cross-sectional side view of the low-temperature showcase being suitable for one embodiment of the invention.
Fig. 2 controls relevant functional block diagram to the Temperature displaying of the control device of the low-temperature showcase of Fig. 1.
The figure of each correction value when Fig. 3 is the low-temperature showcase representing Fig. 1.
Fig. 4 is the longitudinal cross-sectional side view covering the state of guard shield at night of the low-temperature showcase of Fig. 1.
Fig. 5 is the longitudinal cross-sectional side view of the low-temperature showcase that can be suitable for another embodiment of the present invention.
Fig. 6 is the longitudinal cross-sectional side view of the low-temperature showcase that can be suitable for another embodiment of the present invention.
Label declaration
1,41,61 open Showcases (low-temperature showcase)
2,42,62 thermal wall
4,44,64 demarcation strips
6,46,66 shelfs (commodity display portion)
7,47,67 openings
8,48,68 showrooms
9,49,69 pipelines
11 shelves (commodity display portion)
12 lighting devices
16,56,76 blow-off outlets
17,57,77 suction inlets
18,58,78 pressure fan
19,59,79 evaporimeters
21 night guard shield
22 temperature indicators (display unit)
26 blowout temperature detectors
27 inlet temperature detectors
28 in-cabinet temperature detectors
31 temperature arithmetical organs
32 hull shape correction mechanisms
33 illumination correction mechanisms
34 night guard shield correction mechanism
C control device
Detailed description of the invention
Below, describe in detail based on embodiments of the present invention.
[embodiment 1]
Fig. 1 represents an embodiment as low-temperature showcase and is arranged on the longitudinal cross-sectional side view of the open Showcase 1 of the vertical multi-stage in the shops such as supermarket.In the open Showcase 1 of embodiment, by section, roughly the thermal wall 2 of U-shaped and the not shown side plate of its both sides form the main body 3 of front surface opening, the setting spaced apart of the inner side of this thermal wall 2 demarcation strip 4 with become in the inner side of the shelf 6 as commodity display portion of bottom display commodity the showroom 8 that front surface has opening 7, at demarcation strip 4 and be configured with a series of pipeline 9 between shelf 6 and thermal wall 2.
In showroom 8, erection has the shelf 11 as commodity display portion of multistage display goods up and down, at the front lower surface of each shelf 11 and the top plate portion of demarcation strip 4, the lighting device (fluorescent lamp or LED) 12 for throwing light on to the commodity on each shelf 11 and on shelf 6 is installed.In addition, this lighting device 12 is also arranged on top cover 13 inner surface given prominence to from the end face of thermal wall 2 forward, thus can throw light on from outside in showroom 8.
In addition, at the upper limb of the opening 7 of showroom 8, be formed with the blow-off outlet (for inside and outside two-layer in embodiment) 16 be communicated with pipeline 9, be formed with the suction inlet 17 be communicated with pipeline 9 at the lower edge of opening 7.And, in the pipeline 9 on the downside of shelf 6, be equipped with the pressure fan 18 of circulating cold air, in the pipeline 9 at back, be longitudinally set with the evaporimeter 19 of the refrigerant loop forming refrigerating plant.
On the other hand, at the lower surface of top cover 13 ,/the guard shield 21 at transparent night of pull-out that freely reels is installed.Guard shield 21 was drawn out when Night described later (at closing time) and covered, with closing openings 7 (with reference to Fig. 4) at night this.And opening 7 top on front side of blow-off outlet 16, is provided with the temperature indicator 22 as display unit of the temperature shown in a digital manner in showroom 8.
In addition, in the pipeline 9 of the top plate portion of the upstream side of blow-off outlet 16, blowout temperature detector (temperature sensor) 26 is installed, in the pipeline 9 on the downside of shelf 6, inlet temperature detector (temperature sensor) 27 is installed.And, at the downside of the demarcation strip 4 of top plate portion, the i.e. top plate portion of showroom 8, in-cabinet temperature detector (temperature sensor) 28 is installed.
Blowout temperature detector 26 detects the temperature (being called blowout temperature) of the cold air blown out from blow-off outlet 16 through pipeline 9.In addition, inlet temperature detector 27 detects the temperature (being called inlet temperature) being sucked into the cold air pipeline 9 from suction inlet 17.Further, in-cabinet temperature detector 28 detects the temperature (being called in-cabinet temperature) of the top plate portion of showroom 8.
For evaporimeter 19, from refrigerating plant supply cold-producing medium, play refrigerating effect.The cold air having carried out heat exchange with this evaporimeter 19 is blown in pipeline 9 by pressure fan 18, and blows out to opening from blow-off outlet 16.The cold air blown out from the blow-off outlet 16 of opening 7 upper limb forms gas curtain at opening 7, meanwhile, its part at showroom 8 Inner eycle, to cool in showroom 8.The cold air blown out from blow-off outlet 16 is sucked in pipeline 9 from the suction inlet 17 of opening lower edge, and is sucked up to pressure fan 18, repeatedly carries out this circulation.
Control device C (Fig. 2) described later controls the cold-producing medium supply to evaporimeter 19 based on the blowout temperature that blowout temperature detector 26 detects, and thus, will be maintained the design temperature of regulation in showroom 8.In addition, night, guard shield 21 was under the state being covered with opening 7 as shown in Figure 4, was positioned at the outside of gas curtain, to stop or to suppress outside air to the intrusion in showroom 8.
When covering guard shield 21 at night as shown in Figure 4, the intrusion of outside air is prevented from, and the heat load therefore in showroom 8 is light.Therefore, control device C, under the state that night, guard shield 21 was covered with opening 7, performs to reverse and controls so-called night, improves setting and control by the design temperature in showroom 8.
In addition, lighting device 12 is lighted by the not shown switch being installed on main body 3/is extinguished.Now, when generally opening the door in shop, (day mode, light-modulating mode) lighting device 12 is lighted, at closing time, (Night) extinguishes (night guard shield 21 be also covered), but also extinguishes (illumination " shut " mode") for the purpose of energy-conservation grade when running a shop sometimes.The state of this switch is also input to control device C to judge each pattern.
Next, with reference to Fig. 2 and Fig. 3, illustrate that control device C controls the Temperature displaying of temperature indicator 22.Fig. 2 represents and controls relevant function block to the Temperature displaying of control device C.Control device C comprises microcomputer, and in the case of the embodiment, as its function, control device C possess temperature arithmetical organ 31, hull shape correction mechanism 32, illumination correction mechanism 33 and night guard shield correction mechanism 34.
Wherein, hull shape correction mechanism 32 preserves the hull shape correction value of this open Showcase 1.This hull shape correction value is hull shape (being upright shell when the present embodiment) according to this open Showcase 1 and the intrinsic correction value determined, obtain by experiment in advance, when upright shell, as shown in Figure 3, be set smaller than under aforesaid each pattern " 0.8 " of " 1 ".
In addition, the correction mechanism 33 that throws light on preserves the illumination correction value of this open Showcase 1.This illumination correction value is illuminating state according to lighting device 12 and the correction value determined, depending on the quantity of lighting device 12, numerical value changes.It is also obtained in advance by experiment, when upright shell, as shown in Figure 3, is set as " 1.2 " by day under pattern and light-modulating mode.In addition, extinguish under Night and illumination " shut " mode", correction value of therefore throwing light on is set to " 0 ".
In addition, night, guard shield correction mechanism 34 preserved the guard shield correction value at night of this open Showcase 1.This, whether guard shield correction value 21 to be covered and the correction value determined according to guard shield at night at night, obtains by experiment in advance, when upright shell, as shown in Figure 3, be set as " 1.0 " under Night.In addition, under the pattern beyond Night, night, guard shield 21 can be wound, and therefore night, guard shield correction value was set to " 0 ".
And, the illumination correction value that hull shape correction value, illumination correction mechanism 33 that the inlet temperature that the blowout temperature that the temperature arithmetical organ 31 of control device C detects based on blowout temperature detector 26, inlet temperature detector 27 detect, hull shape correction mechanism 32 are preserved are preserved and the guard shield correction value at night that night, guard shield correction mechanism 34 was preserved, the mean value of the temperature on each shelf 11 of computing and shelf 6 (being commodity display portion), and at the enterprising trip temperature display translation of temperature indicator 22.
Now, the temperature arithmetical organ 31 of control device C uses following formula (1) to carry out the temperature of computing display translation on temperature indicator 22.That is, temperature=blowout temperature+(inlet temperature-blowout temperature)/2 × hull shape correction value+illumination correction value on temperature indicator 22+night guard shield correction value is presented at ... (1).
[(inlet temperature-blowout temperature)/2] of above-mentioned formula (1) are the mean value of the difference of inlet temperature and blowout temperature, because of being involved in of outside air, inlet temperature is higher than blowout temperature, and therefore [blowout temperature+(inlet temperature-blowout temperature)/2] is the temperature of the central authorities of the above-below direction of the showroom 8 of instigating the blowout temperature at blow-off outlet 16 place to rise towards the inlet temperature at suction inlet 17 place.Hull shape correction value is multiplied by [(inlet temperature-blowout temperature)/2] will be somebody's turn to do in [blowout temperature+(inlet temperature-blowout temperature)/2], but when the upright shell of embodiment, be set smaller than as described above " 0.8 " of " 1 ", therefore become central authorities than above-below direction closer to the temperature of the blowout temperature of blow-off outlet 16.
Here, when the upright shell that Fig. 1 is such, in any case the amount of being involved in from the outside air of suction inlet 17 all can become many, and therefore inlet temperature can uprise.Therefore, when only [blowing out temperature+(inlet temperature-blowout temperature)/2] (namely, hull shape correction value is " 1 "), the tendency that the temperature that existence calculates is higher than the temperature on actual each shelf 11 or shelf 6, but by as the embodiment hull shape correction value being set to " 0.8 " that is less than " 1 ", thus reduce with closer to blowing out temperature with the temperature that [blowout temperature+(inlet temperature-blowout temperature)/2 × hull shape correction value] calculates, thus close to the mean value (described " 0.8 " is that the temperature that the calculates mode that becomes the mean value of the temperature on each shelf 11 or shelf 6 is obtained by experiment and determines) of the temperature on each shelf 11 or shelf 6.
In addition, under the day mode lighted at lighting device 12 or light-modulating mode, because of the impact of the heat that lighting device 12 produces, the temperature on each shelf 11 or shelf 6 rises.Therefore, only utilize above-mentioned formula (1) [blowout temperature+(inlet temperature-blowout temperature)/2 × hull shape correction value], the temperature that calculates can be caused lower than the mean value of the temperature on each shelf 11 of reality and shelf 6, but in formula (1), [blowout temperature+(inlet temperature-blowout temperature)/2 × hull shape correction value] is added " illumination correction value ", and, in pattern and light-modulating mode, this illumination correction value is set as " 1.2 " by day, therefore the temperature calculated uprises, thus close to the mean value (described " 1.2 " are that the temperature that the calculates mode that becomes the mean value of the temperature on each shelf 11 or shelf 6 is obtained by experiment and determines) of the temperature on actual each shelf 11 and shelf 6.
And when night, guard shield 21 was covered, be involved in suction inlet 17 (or die-offing) without outside air, therefore inlet temperature declines.Therefore, only utilize [blowout temperature+(inlet temperature-blowout temperature)/2 × hull shape correction value] and the illumination correction value of above-mentioned formula (1), the temperature that calculates can be caused lower than the mean value of the temperature on each shelf 11 of reality and shelf 6, but in formula (1), [blowout temperature+(inlet temperature-blowout temperature)/2 × hull shape correction value+illumination correction value] is added " guard shield correction value at night ", and, under Night, this, guard shield correction value was set to " 1.0 " at night, therefore the temperature calculated uprises, thus close to the mean value (described " 1.0 " are that the temperature that the calculates mode that becomes the mean value of the temperature on each shelf 11 or shelf 6 is obtained by experiment and determines) of the temperature on actual each shelf 11 and shelf 6.
Further, the Temperature displaying calculated by temperature arithmetical organ 31 as described above outputs on temperature indicator 22 by control device C.Like this, in the present invention, blowout temperature, inlet temperature that inlet temperature detector 27 detects and the hull shape correction value predetermined that control device C detects based on blowout temperature detector 26, illumination correction value, night guard shield correction value carry out the temperature on each shelf 11 of computing or shelf 6 (commodity display portion), and shown on temperature indicator 22, therefore, it is possible to follow the lighting/extinguish of hull shape and illumination, night guard shield the change of the cooler environment such as presence or absence show temperature on each shelf 11 or shelf 6 exactly.
Thus, especially in open Showcase 1 as the embodiment, correct temperature treatment can be realized.In addition, multiple shelf 11 or shelf 6 is provided with in showroom 8, but the mean value of the temperature on each shelf 11 of control device C computing or shelf 6 is also shown on temperature indicator 22, therefore, it is possible to the temperature that display is representative with the temperature on each shelf 11 or shelf 6.
Especially, by carrying out the temperature that computing is shown on temperature indicator 22 according to aforesaid formula (1), can show the temperature closer to the temperature on each shelf 11 or shelf 6 thus on temperature indicator 22, this temperature utilizes hull shape correction value, illumination correction value and [blow out temperature+(inlet temperature-blowout temperature)/2] of guard shield correction value at night to the medium temperature representing blow-off outlet 26 and suction inlet 27 to revise obtained temperature.
Now, 1 is less than when upright shell as the embodiment by making hull shape correction value, thus for upright shell, the temperature of display can be made closer to blowout temperature, get rid of because of bottom outside air be involved in the impact (inlet temperature uprise and cause the impact that displays temperature becomes higher than the temperature on each shelf 11 or shelf 6) caused, thus the temperature on each shelf 11 or shelf 6 can be shown exactly.
In addition, as previously mentioned, when lighting device 12 is lighted, illumination correction value works towards improving the direction being presented at temperature on temperature indicator 22, therefore, it is possible to show the temperature on each shelf 11 or shelf 6 that rise because of the impact of illumination more accurately.
And, when night, guard shield 21 was covered, night, guard shield correction value worked towards the direction of improving the temperature be presented on temperature indicator 22, therefore, it is possible to eliminating guard shield at night 21 is covered and is involved in without outside air, thus the impact that inlet temperature declines, thus can show the temperature on each shelf 11 or shelf 6 more accurately.
In addition, the control device C of embodiment is presented at the temperature on temperature indicator 22 during in calculating, for whether using aforesaid each correction value to switch.Thus, according to the management method of user, switching be use hull shape correction value, illumination correction value, night guard shield correction value, still only utilize blowout temperature to carry out computing with inlet temperature, thus convenience raising.
[embodiment 2]
Next, another embodiment that control device C controls the Temperature displaying of temperature indicator 22 is described.Function block now comprises the dotted line in Fig. 2.
In case of the present embodiment, the temperature arithmetical organ 31 of control device C uses following formula (2) to carry out the temperature of computing display translation on temperature indicator 22.That is, be presented at temperature on temperature indicator 22={ in-cabinet temperature+blowout temperature+(inlet temperature-blowout temperature)/2 × hull shape correction value }/2+ to throw light on correction value+night guard shield correction value ... (2)
Be { in-cabinet temperature+blowout temperature+(inlet temperature-blowout temperature)/2 × hull shape correction value }/2 with the difference of formula (1) in above-mentioned formula (2).Should { in-cabinet temperature+blowout temperature+(inlet temperature-blowout temperature)/2 × hull shape correction value }/2 be in-cabinet temperature detector 28 detect the mean value of [blowing out temperature+(inlet temperature-blowout temperature)/2 × hull shape correction value] in [in-cabinet temperature] and described formula (1).That is, when open Showcase 1 of Fig. 1, become and the mean value of the central authorities of the above-below direction from showroom 8 to the close temperature of the blowout temperature of blow-off outlet 16 and in-cabinet temperature.
The in-cabinet temperature that in-cabinet temperature detector 28 detects becomes the temperature lower than other parts in showroom 8, but invariably this in-cabinet temperature is the temperature in actual showroom 8.Further, the temperature in actual showroom 8 presents because outside air causes only by blowing out the change that temperature or inlet temperature cannot be grasped from impacts (external disturbance) such as the discrepancy of the intrusion of opening 7 or commodity.
Therefore, by using the mean value of [in-cabinet temperature] and [blowing out temperature+(inlet temperature-blowout temperature)/2 × hull shape correction value] to carry out computing as in this embodiment, thus the Temperature displaying more accurately also taken into account by the in-cabinet temperature of reality can be realized.But, now, illumination correction value or the numerical value of the mean value of the temperature on each shelf 11 or shelf 6 can be calculated night when guard shield correction value is also and decides in-cabinet temperature to take into account in advance by experiment.
[embodiment 3]
Next, Fig. 5, as another embodiment of low-temperature showcase of the present invention, illustrates the longitudinal cross-sectional side view of so-called horizontal open Showcase 41.In the open Showcase 41 of the present embodiment, by upper surface open section roughly the thermal wall 42 of U-shaped form main body 43 with the not shown side plate of its both sides, become with the inner side of the shelf 46 as commodity display portion of display goods the showroom 48 that upper surface has opening 47 at the demarcation strip 44 of the inner side of this thermal wall 42 setting spaced apart, between demarcation strip 44 and thermal wall 42, be configured with a series of pipeline 49.
In addition, the inside edge (side) of the opening 47 in showroom 48, is formed with the blow-off outlet 56 be communicated with pipeline 49, is formed with the suction inlet 57 be communicated with pipeline 49 at opening 47 close to lateral edges (opposite side).And, in the pipeline 49 of bottom, be equipped with the pressure fan 58 of circulating cold air and the evaporimeter 59 of the refrigerant loop of formation refrigerating plant.And the opening 47 on the upside of blow-off outlet 56 is inner, is provided with and aforementioned same temperature indicator 22.
In addition, in the pipeline 49 of the inner side of the upstream side of blow-off outlet 56, the blowout temperature detector (temperature sensor) 26 same with aforesaid embodiment is installed, in the pipeline 49 of bottom, is provided with and aforementioned same inlet temperature detector (temperature sensor) 27.And in the front side of the demarcation strip 44 of inner side, the inside namely in showroom 8, is provided with and aforementioned same in-cabinet temperature detector (temperature sensor) 28.
Now, for evaporimeter 59, also from refrigerating plant supply cold-producing medium, to play refrigerating effect.The cold air having carried out heat exchange with this evaporimeter 59 is blown in the pipeline 49 of inboard by pressure fan 58, and blows out to opening from blow-off outlet 56.The cold air blown out from the blow-off outlet 56 of the inboard edge of opening 47 forms gas curtain at opening 47, and meanwhile, its part, at showroom 48 Inner eycle, cools in showroom 48.From the cold air of blow-off outlet 56 blowout, in front of opening, the suction inlet 57 of lateral margin is sucked in pipeline 49, and is sucked up to pressure fan 58, this circulation repeatedly.
Control device C is now and aforementioned same control device.Namely, control device C based on the cold-producing medium supply (being now the compressor controlling built-in refrigerating plant) blowing out blowout temperature that temperature detector 26 detects and control evaporimeter 59, will be maintained the design temperature of regulation thus in the same manner as aforesaid embodiment in showroom 48.
And, now, the illumination correction value that hull shape correction value, illumination correction mechanism 33 that inlet temperature that the blowout temperature that the temperature arithmetical organ 31 of control device C also detects based on blowout temperature detector 26, inlet temperature detector 27 detect (and in-cabinet temperature detector 28 detect in-cabinet temperature), hull shape correction mechanism 32 are preserved are preserved, the guard shield correction value at night that night, guard shield correction mechanism 34 was preserved, carry out according to aforesaid formula (1) or formula (2) temperature that computing will show and display translation on temperature indicator 22.
But, when this horizontal open Showcase 41, compared with aforesaid vertical open Showcase, the amount of being involved in of outside air is few, and therefore hull shape correction value is larger than vertical situation (" 0.8 "), is set to " 0.9 ".That is, show than the temperature of vertical situation closer to inlet temperature.
In addition, the open Showcase 41 of embodiment do not install previous embodiment lighting device or night guard shield, correction value of therefore throwing light on and night guard shield correction value be all set to " 0 ".
By setting each correction value like this, when because of the vertical open Showcase of the increase ratio being involved in the inlet temperature caused of outside air little horizontal open Showcase 41, also can show exactly on temperature indicator 22 as the temperature on the shelf 46 in commodity display portion.
[embodiment 4]
Next, Fig. 6, as the another embodiment of low-temperature showcase of the present invention, represents the longitudinal cross-sectional side view of the so-called island open Showcase 61 as another horizontal example.In the open Showcase 61 of the present embodiment, also by upper surface open section roughly the thermal wall 62 of U-shaped form main body 63 with the not shown side plate of its both sides, become using the inner side of the shelf 66,66 as commodity display portion of display goods the showroom 68 that upper surface has opening 67 with being arranged on before and after bottom, at demarcation strip 64 and be configured with a series of pipeline 69 between shelf 66 and thermal wall 62 at the demarcation strip 64 of the inner side of this thermal wall 62 setting spaced apart.
Open Showcase 61 now, at the central portion of the fore-and-aft direction of showroom 68, is erect throughout left and right and is provided with central conduit parts 71, thus, is separated in showroom 68 by front and back.In addition, the lower end of the inner space of these central conduit parts 71 is communicated in pipeline 69 between shelf 66,66.And, on the top (the central portion upper limb of opening 67) of these central conduit parts 71, the blow-off outlet 76,76 be communicated with the inner space of these central conduit parts 71 is formed respectively in front and back, in the inboard edge with side, front, be formed with the suction inlet 77,77 be communicated with pipeline 69 respectively.
In addition, in the pipeline 69 bottom the front and back of central conduit parts 71, be equipped with the evaporimeter 79,79 of the refrigerant loop forming refrigerating plant respectively, in the pipeline 69 below central conduit parts 71, be provided with the pressure fan 78 of circulating cold air.And, at the upper end front surface of central conduit parts 71, be provided with and aforementioned same temperature indicator 22.
In addition, in the pipeline 69 of the ejection side (i.e. the upstream side of blow-off outlet 76) of pressure fan 78, the blowout temperature detector (temperature sensor) 26 same with aforesaid embodiment is installed, close in the pipeline 69 of side bottom, be provided with and aforementioned same inlet temperature detector (temperature sensor) 27.And, in the portion inside, showroom 68 of front side, be provided with and aforementioned same in-cabinet temperature detector (temperature sensor) 28.
Now, for each evaporimeter 79, also from refrigerating plant supply cold-producing medium, to play refrigerating effect.The cold air having carried out heat exchange with each evaporimeter 79 is blown in the inner space of central conduit parts 71 by pressure fan 78, and blows out the opening to the showroom 68 of front and back from the blow-off outlet 76,76 of front and back.The cold air blown out from the blow-off outlet 76,76 of opening 67 upper limb of the front and back of being separated by central conduit parts 71 forms gas curtain at each opening 67, and meanwhile, its part, at each showroom 68 Inner eycle, cools in showroom 68.The cold air blown out from each blow-off outlet 76 is inhaled in pipeline 69 from opening inner side edge and each suction inlet 77 close to lateral edges, and is sucked up to pressure fan 78 through each evaporimeter 79, this circulation repeatedly.
Control device C now is also and aforementioned same control device.Namely, control device C is same with aforesaid embodiment, the cold-producing medium supply (being also now the compressor controlling built-in refrigerating plant) to each evaporimeter 79 is controlled based on the blowout temperature that detects of blowout temperature detector 26, thus, the design temperature of regulation will be maintained in showroom 68.
And, now, the illumination correction value that hull shape correction value, illumination correction mechanism 33 that inlet temperature that the blowout temperature that the temperature arithmetical organ 31 of control device C also detects based on blowout temperature detector 26, inlet temperature detector 27 detect (and in-cabinet temperature detector 28 detect in-cabinet temperature), hull shape correction mechanism 32 are preserved are preserved, the guard shield correction value at night that night, guard shield correction mechanism 34 was preserved, carry out according to aforesaid formula (1) or formula (2) temperature that computing will show and display translation on temperature indicator 22.
But, when this island horizontal open Showcase 61, compared with aforesaid horizontal open Showcase (Fig. 5), opening is divided, the area of each opening diminishes, the quantitative change that is involved in of outside air obtains less, and therefore hull shape correction value is larger than aforesaid horizontal situation (" 0.9 "), is set to " 1.1 ".That is, the situation than horizontal (Fig. 5) of showing is closer to the temperature (than the central authorities of each showroom 68 more by the temperature of suction inlet 77) of inlet temperature.
In addition, the present embodiment open Showcase 61 when, do not install yet lighting device or night guard shield, therefore throw light on correction value and night guard shield correction value be all set as " 0 ".
By setting each correction value like this, when horizontal open Showcase 61 of the less island of the common horizontal open Showcase of the increase ratio being involved in the inlet temperature caused because of outside air, also can show exactly on temperature indicator 22 as the temperature on the shelf 66 in commodity display portion.
In addition, in described formula (1) and formula (2), use all each correction value in hull shape correction value, illumination correction value, night guard shield correction value to carry out computing and be presented at temperature on temperature indicator 22, but be not limited to this, even if use any one in these correction values or both combinations among them to carry out computing, also can show than being only worth more accurately based on the computing of inlet temperature, blowout temperature or in-cabinet temperature etc.
In addition, in each embodiment, be provided with in-cabinet temperature detector 28, but when utilizing formula (1) to carry out computing, also can remove in-cabinet temperature detector 28.
Claims (11)
1. low-temperature showcase, by from blow-off outlet to have display goods commodity display portion showroom in blow out cold air and suck from suction inlet, thus cool in described showroom, it comprises:
Blowout temperature detector, detects the blowout temperature of the cold air of described blow-off outlet;
Inlet temperature detector, detects the inlet temperature of the cold air of described suction inlet;
Display unit, for showing the temperature in described showroom; And
Control device, based on the detected value of each described temperature detector, makes described display unit displays temperature, and,
The correction value of the blowout temperature that this control device detects based on described blowout temperature detector, inlet temperature that described inlet temperature detector detects and regulation carrys out the temperature in commodity display portion described in computing, and described display unit shows.
2. low-temperature showcase as claimed in claim 1,
Multiple described commodity display portion is possessed in described showroom,
The mean value of the temperature in each commodity display portion of described control device computing and being presented on described display unit.
3. low-temperature showcase as claimed in claim 1 or 2,
Described showroom is following open Showcase, that is: at least one opening, is formed with described blow-off outlet, and is formed with described suction inlet at opposite side edge at a lateral edges of this opening.
4. low-temperature showcase as claimed in claim 3,
Described control device use determine according to the hull shape of this low-temperature showcase hull shape correction value, according to the illumination correction value that the illuminating state of the lighting device thrown light in described showroom is determined and night of whether being covered according to guard shield at night and determining any one or they in guard shield correction value combination or they are whole, be used as described correction value.
5. low-temperature showcase as claimed in claim 4,
Described control device carrys out according to following formula (1) temperature that computing carries out showing on described display unit, that is:
Be presented at temperature=described blowout temperature+(described inlet temperature-described blowout temperature)/2 × described hull shape correction value+described illumination correction value on described display unit+described guard shield correction value at night ... (1).
6. low-temperature showcase as claimed in claim 4,
Comprise the in-cabinet temperature detector of the in-cabinet temperature detected in described showroom,
Described control device carrys out according to following formula (2) temperature that computing shown on described display unit, that is:
Be presented at correction value of throwing light on described in temperature={ described in-cabinet temperature+described blowout temperature+(described inlet temperature-described blowout temperature)/2 × described hull shape correction value }/2+ on described display unit+described guard shield correction value at night ... (2).
7. low-temperature showcase as claimed in claim 5,
Described hull shape correction value is less than 1 when vertical low temperature showcase, is greater than the value of described vertical low temperature showcase when horizontal low temperature showcase.
8. low-temperature showcase as claimed in claim 6,
Described hull shape correction value is less than 1 when vertical low temperature showcase, is greater than the value of described vertical low temperature showcase when horizontal low temperature showcase.
9. low-temperature showcase as claimed in claim 4,
When described lighting device is lighted, described illumination correction value works towards the direction of improving the temperature be presented on described display unit.
10. low-temperature showcase as claimed in claim 4,
When described night, guard shield was covered, work in the direction of the temperature that described night, guard shield correction value was presented on described display unit towards raising.
11. low-temperature showcases as claimed in claim 1 or 2,
Described control device, when calculating the temperature be presented on described display unit, can switch and whether use described correction value.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014022517A JP6167432B2 (en) | 2014-02-07 | 2014-02-07 | Low temperature showcase |
| JP2014-022517 | 2014-02-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104825016A true CN104825016A (en) | 2015-08-12 |
| CN104825016B CN104825016B (en) | 2019-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510062081.2A Active CN104825016B (en) | 2014-02-07 | 2015-02-05 | Low-temperature showcase |
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| Country | Link |
|---|---|
| JP (1) | JP6167432B2 (en) |
| CN (1) | CN104825016B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114568887A (en) * | 2020-11-30 | 2022-06-03 | 财团法人工业技术研究院 | Air curtain air speed control method and device for open type display cabinet |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019136316A (en) * | 2018-02-09 | 2019-08-22 | パナソニックＩｐマネジメント株式会社 | Open showcase |
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| CN2063771U (en) * | 1989-07-20 | 1990-10-17 | 王世忠 | Fresh-keeping transparent foodstuff counter |
| CN1153889A (en) * | 1995-10-11 | 1997-07-09 | 三洋电机株式会社 | Frost-removing device for low-temperature display cabinet |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP6167432B2 (en) | 2017-07-26 |
| CN104825016B (en) | 2019-06-07 |
| JP2015146976A (en) | 2015-08-20 |
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