CN108626962A - The management system of showcase - Google Patents
The management system of showcase Download PDFInfo
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- CN108626962A CN108626962A CN201810204086.8A CN201810204086A CN108626962A CN 108626962 A CN108626962 A CN 108626962A CN 201810204086 A CN201810204086 A CN 201810204086A CN 108626962 A CN108626962 A CN 108626962A
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- Prior art keywords
- condenser
- showcase
- control device
- filter
- temperature
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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
- F25D29/00—Arrangement or mounting of control or safety devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
- A47F3/0404—Cases or cabinets of the closed type
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Freezers Or Refrigerated Showcases (AREA)
Abstract
A kind of management system of showcase is provided, can accurately predict that failure occurs because caused by being deteriorated the performance of ventilating of condenser, so as to be avoided as much as sending out maintenance call to maintenance center.To including compressor (11) in main body (16), condenser (12), in the system (1) that condenser filter (23) and the showcase (3) of condenser pressure fan (15) are managed, include the condenser temperature sensor (27) being detected to the temperature of condenser (12) and end side control device (4), the end side control device (4) is according to the specific temperature rises of condenser (12), omen to blocking failure with the presence or absence of the barrier generated due to air entry and/or exhaust outlet are blocked by barrier judges, be judged as there are executed in the case of omen reported to salesman barrier obstruction report control.
Description
Technical field
The present invention relates to a kind of system for being managed to showcase, above-mentioned showcase includes compression in main body
Machine, condenser, condenser filter and condenser pressure fan.
Background technology
The shops such as convenience store or supermarket are provided with more showcases, commodity are carried out in each showcase cooling and old
It arranges, peddle above-mentioned commodity.In this case, showcase is provided with by compressor, condenser, decompressor and cooler etc.
The refrigerant circuit of composition makes the refrigerant being discharged from compressor condense within the condenser, and is subtracted by decompressor
It after pressure, is evaporated in cooler, to being cooled down in showroom.
In addition, compressor and condenser are set in the Machine Room of the lower body part formation of showcase, pass through condenser
Extraneous air (air in shop around showcase) is set to be vented in condenser to make refrigerant condense with pressure fan, but due to
Extraneous air includes dust, therefore, can generate blocking in condenser.Performance of ventilating is deteriorated if blockage of condenser, therefore, meeting
Making the reduction of the heat exchanger effectiveness of refrigerant and extraneous gas so that power consumption increases, and if like this if placement, in showroom
Cooling capacity can reduce so that commodity deteriorate.
For this purpose, condenser is provided with the condenser filter for being captured to the dust in extraneous air, but on
It states if condenser filter also blocks, it may occur that identical problem, therefore, it is necessary to be cleaned.Thus, in the past, it is designed to
According to for example carrying out cooling load factor and cleaning period to showcase, come supervise filter cleaning notice (for example,
Referring to patent document 1).
Existing technical literature
Patent document
Patent document 1：Japanese Patent Laid-Open 2016-223711 bulletins
Invention content
The technical problems to be solved by the invention
Here, being known as food-box (Japanese using a kind of in shop：Kind weight) slim commodity conveying container, above-mentioned food
Product case is usually deposited near showcase.In addition, it is not only since above-mentioned dust causes that the performance of ventilating of condenser, which is deteriorated,
Blocking and caused by, due to Machine Room air entry and exhaust outlet by the barriers such as food-box as described above block, also can
The performance of ventilating that condenser occurs is deteriorated.Although can be solved as long as removing above-mentioned barrier this caused by barrier
The case where performance of ventilating is deteriorated, but it is previous, in the case where causing to display indoor cooling capacity reduction because of above-mentioned reason,
It can be reported to external maintenance center.
In addition, the cleaning about condenser and condenser filter, their management condition is also different because of shop, such as aforementioned
Like that, there is the case where not cleaned to condenser filter if being notified of salesman actually.In addition, even if to cold
Condenser filter is cleaned, and there is also the dusts not captured by condenser filter to put aside in prolonged operating in cold
Condenser, and so that the case where above-mentioned condenser itself blocks.No matter which kind of situation, if let alone if, result will cause to display
Serious failure occurs for cabinet, and maintenance center is connected to urgent maintenance call (phone) to allow attendant to rush for scene.
The present invention makees to solve above-mentioned existing technical problem, and its purpose is to provide a kind of management systems of showcase
System, the management system of the showcase can accurately predict the generation of the failure as caused by being deteriorated the performance of ventilating of condenser,
So as to be avoided as much as sending out maintenance call to maintenance center.
Technical scheme applied to solve the technical problem
The management system of the invention of technical solution one is managed showcase, and above-mentioned showcase includes compression in main body
Machine, condenser, condenser filter and condenser pressure fan, above-mentioned showcase will by above-mentioned condenser pressure fan from
The extraneous air of suction inlet sucking is vented in condenser via condenser filter, and is discharged from exhaust outlet, wherein above-mentioned management
System includes：Condenser temperature sensor, the condenser temperature sensor are detected the temperature of condenser；And control dress
It sets, above-mentioned control device is according to the specific temperature rise of condenser to whether there is because air entry and/or exhaust outlet are hindered by barrier
Plug and generate barrier obstruction failure omen judged, and execute be judged as there are in the case of omen to salesman report
The barrier obstruction report control of announcement.
The management system of the showcase of the invention of technical solution two is on the basis of foregoing invention, characterized in that control dress
It sets and blocks the output in report control according to condenser temperature sensor in barrier, and when the temperature of condenser is in regulation
Between rise within t1 as defined in be judged as that there are barriers to block the pre- of failure in the case of variation detected value T1deg or more
Million.
The management system of the showcase of the invention of technical solution three is on the basis of above-mentioned each invention, characterized in that with cold
The state that the temperature of condenser is in defined fiducial temperature Tb or more continue for stipulated time t2 or more as condition, execute barrier
Obstruction report control.
The management system of the showcase of the invention of technical solution four is on the basis of above-mentioned each invention, characterized in that including
Obstacle sensor for being detected to the barrier near air entry and exhaust outlet, control device are sensed with barrier
Device is detected as condition, execution barrier obstruction report control barrier.
The management system of the showcase of technical solution five is on the basis of above-mentioned each invention, characterized in that in condenser
Temperature reduces defined releasing value T2deg or more from value when being judged as there is a situation where the omen of barrier obstruction failure
Under, control device is judged as that there is no the omens of barrier obstruction failure.
The management system of the showcase of technical solution six is on the basis of above-mentioned each invention, characterized in that including to whether
The element that the cleaning of condenser filter is detected is implemented, defined high temperature detection temperature Th is in the temperature of condenser
In the case that above state persistently carries out, whether above-mentioned control device is in a period of longer than during certain being not carried out condensation
The cleaning of device filter is judged, and executes condenser or plugged filter report control, is implemented within certain period clear
In the case of sweeping, the control device is judged as there is the omen of blockage of condenser failure generated by the blocking of condenser simultaneously
And reported to maintenance center, in the case of cleaning is not carried out in a period of longer than certain period, the control device is judged as
It is reported there are the omen of condenser filter clog fault and to salesman.
The management system of the invention of technical solution seven is managed showcase, and above-mentioned showcase includes compression in main body
Machine, condenser, condenser filter and condenser pressure fan, above-mentioned showcase will by above-mentioned condenser pressure fan from
The extraneous air of suction inlet sucking is vented in condenser via condenser filter, and is discharged from exhaust outlet, wherein above-mentioned management
System includes：The condenser temperature sensor that the temperature of condenser is detected；To whether implementing condenser filter
Clean the element being detected；And control device, it is in defined high temperature in the temperature of condenser and detects temperature Th or more
In the case that state persistently carries out, whether above-mentioned control device in a period of than centainly period is long to being not carried out condenser filtering
The cleaning of device is judged, and executes condenser or plugged filter report control, implements the feelings of cleaning within certain period
Under condition, above-mentioned control device is judged as existing the omen of blockage of condenser failure generated by the blocking of condenser and to dimension
Repair center report, in the case of cleaning is not carried out in a period of longer than during certain, above-mentioned control device be judged as there are because
It the blocking of condenser filter and the omen of condenser filter clog fault that generates and is reported to salesman.
Base of the management system of the showcase of the invention of technical solution eight in the invention of technical solution six or technical solution seven
On plinth, characterized in that including：Machine Room, the Machine Room are formed in lower body part and are provided with compressor, condenser, condensation
Device filter and condenser pressure fan；Skirting board, the skirting board are set to main body and are carried out to condenser filter
It is opened and closed when cleaning；And detector, the detector are detected the opening and closing of above-mentioned skirting board, control device is according to upper
The output of detector is stated to whether implementing the cleaning of condenser filter and being detected.
Base of the management system of the showcase of the invention of technical solution nine in the invention of technical solution six or technical solution seven
On plinth, characterized in that the resume of the temperature change for the condenser that control device is detected according to condenser temperature sensor come pair
The cleaning for whether implementing condenser filter is detected.
Base of the management system of the showcase of the invention of technical solution ten in the invention of technical solution six or technical solution seven
On plinth, characterized in that control device according to the related information of cleaning resume with condenser filter, come to whether implement it is cold
The cleaning of condenser filter is detected.
Any of the management system of the showcase of the invention of technical solution 11 in technical solution six to technical solution ten
On the basis of the invention of scheme, characterized in that be in the defined releasing lower than high temperature detection temperature Th in the temperature of condenser
In the case that temperature Tr states below persistently carry out, control device is judged as that there is no the omens of blockage of condenser failure and cold
The omen of condenser filter clog fault.
The management system of the showcase of the invention of technical solution 12 is on the basis of above-mentioned each invention, characterized in that with
It is condition to begin to pass through stipulated time t3 or more from compressor start, executes above-mentioned each report control.
The management system of the showcase of the invention of technical solution 13 is on the basis of above-mentioned each invention, characterized in that with
Condition is not risen to from the rotating speed of compressor, executes above-mentioned each report control.
The management system of the showcase of the invention of technical solution 14 is on the basis of above-mentioned each invention, characterized in that with
From condenser pressure fan stop after by stipulated time t4 or more be condition, execute above-mentioned each report and control.
Invention effect
According to the invention of technical solution one, management system is managed showcase, which includes pressure in main body
Contracting machine, condenser, condenser filter and condenser pressure fan, above-mentioned showcase will pass through above-mentioned condenser pressure fan
The extraneous air sucked from air entry is vented in condenser via condenser filter, and is discharged from exhaust outlet, above-mentioned management system
System includes the condenser temperature sensor being detected to the temperature of condenser and control device, and the control device is according to condensation
The specific temperature rise of device with the presence or absence of the barrier generated due to air entry and/or exhaust outlet are blocked by barrier to blocking failure
Omen judged that therefore, above-mentioned control device can judge the obstacles such as food-box according to the specific temperature rise of condenser
Object is positioned over the air entry of showcase or exhaust outlet nearby makes the performance of ventilating of condenser be deteriorated, and leads to barrier obstruction event
The omen of barrier, and reported to salesman, to supervise salesman to remove above-mentioned barrier.
Thereby, showcase can be made to avoid result in the unfavorable condition of barrier obstruction failure in advance, it is reliable so as to improve
Property.Further, since the report to maintenance center can be eliminated or be reduced, therefore, it is possible to reduce maintenance cost.
Particularly, as the invention of technical solution two, if control device blocks in report control in barrier according to cold
The output of condenser temperature sensor, and when the temperature of condenser rises defined variation detected value within stipulated time t1
Judge there are the omen that barrier blocks failure, then can accurately grasp the temperature of condenser in the case of T1deg or more
Climbing gets higher this case, so as to which reliably there will be the reports of this case that the omen that barrier blocks failure to shop
Member.
In addition, as the invention of technical solution three, if control device is so that the temperature of condenser is in defined benchmark
The state of temperature Tb or more continue for stipulated time t2 or more as condition to execute barrier obstruction report control, then can be
Showcase judges the specific temperature rise of condenser after being in common operating condition, so as to effectively eliminate or subtract
Few error reporting to salesman.
In addition, as the invention of technical solution four, if being provided with for the obstacle near air entry and exhaust outlet
Obstacle sensor that object is detected, and control device is detected barrier with obstacle sensor and is held for condition
The obstruction report control of row barrier, then only can just hold in the case where barrier actually exists near air entry or exhaust outlet
The obstruction report control of row barrier, judges the omen of whether there are obstacles obstruction failure so as to significantly increase
Precision.
In addition, as the invention of technical solution five, if condenser temperature from being judged as there are barrier obstruction therefore
In the case that value when the omen of barrier has dropped defined releasing value T2deg or more, control device is judged as that barrier is not present
Block the omen of failure, then can accurately judge that barrier is removed and towards condensation by the reduction of condenser temperature
The performance of ventilating of device has restored this case, to release the report to salesman.
In addition, as the invention of technical solution six and the invention of technical solution seven, if management system be provided with to whether
The element that the cleaning of condenser filter is detected is implemented, and defined high temperature detection temperature is in the temperature of condenser
In the case that the state of degree Th or more persistently carries out, whether control device is in a period of longer than certain period being not carried out condensation
The cleaning of device filter is judged, and executes condenser or plugged filter report control, is implemented within certain period clear
In the case of sweeping, above-mentioned control device is judged as there is the omen of blockage of condenser failure generated by the blocking of condenser simultaneously
And reported to maintenance center, in the case of cleaning is not carried out in a period of longer than certain period, above-mentioned control device is judged as
Omen in the presence of the condenser filter clog fault generated by the blocking of condenser filter and executing reports to salesman,
Therefore, control device can judge there is the blocking for leading to condenser or condenser filter according to the temperature rise of condenser
The omen of failure, at this point, when the cleaning of condenser filter is not carried out in a period of longer than certain period, above-mentioned control device
It can be reported to salesman and salesman is supervised to clean condenser filter, when implementing cleaning to condenser filter,
Above-mentioned control device can be judged as that condenser itself occurs to block and be reported to maintenance center.
Thereby, above-mentioned control device carries out reporting and allowing to salesman in the case where condenser filter is blocked automatically
Salesman cleans condenser filter, is reported to maintenance center in the case where condenser itself is blocked and allows attendant
The differentiation of such reply occasion is coped with, so as to mitigate the burden of salesman and accurately avoid because of condenser or condensation
Cause showcase that the unfavorable condition of catastrophe failure occurs caused by the blocking of device filter.
Here, as the invention of technical solution eight, showcase has：Machine Room, the Machine Room are formed in lower body part
And it is provided with compressor, condenser, condenser filter and condenser pressure fan；Skirting board, the skirting board are set to
It main body and is opened and closed when being cleaned to condenser filter；And detector, the detector is to above-mentioned skirting board
Opening and closing be detected, in this case, if control device according to the output of above-mentioned detector to whether implementing condenser
The cleaning of filter is detected, then can utilize the detector being detected to the opening and closing of skirting board, to whether implement it is cold
The cleaning of condenser filter is detected.
If in addition, being cleaned to condenser filter, the performance of ventilating towards condenser can be improved, it is above-mentioned logical
The raising of wind performance is embodied by the temperature change of condenser, therefore, as the invention of technical solution nine, control device energy
The resume of the temperature change of enough condensers detected according to condenser temperature sensor, to whether implementing condenser filter
Cleaning be detected.
If in addition, in the case where having cleaned condenser filter, above- mentioned information is input to control device in advance, then such as
The invention of technical solution ten is such, control device can according to the relevant information of cleaning resume with above-mentioned condenser filter,
To whether implementing the cleaning of above-mentioned condenser filter and being detected.
In addition, as the invention of technical solution 11, if the temperature in condenser is in lower than high temperature detection temperature Th
Defined releasing temperature Tr states below persistently carry out in the case of, control device be judged as there is no blockage of condenser therefore
The omen of barrier and the omen of condenser filter clog fault, then can accurately judge according to the reduction of condenser temperature
Go out to implement condenser or condenser filter and clean and the performance of ventilating towards condenser is made to restore this case, to solve
Except the report to maintenance center or salesman.
In addition, as the invention of claim ten two, if control device from compressor start to begin to pass through regulation
Between t3 or more execute above-mentioned each report control for condition, then can avoid to making the temperature of condenser be easy the compressor risen
Condenser temperature after just starting is judged, mistake is carried out so as to effectively eliminate or reduce to salesman or maintenance center
The unfavorable condition of report.
In addition, as the invention of claim ten three, if control device from the rotating speed of compressor not rise to condition
It is controlled to execute above-mentioned each report, then when can avoid to making the temperature of condenser be easy the rotating speed rising of the compressor risen
Condenser temperature is judged, the bad of error reporting is carried out so as to effectively eliminate or reduce to salesman or maintenance center
Situation.
In addition, as the invention of claim ten four, if control device with after stopping from compressor by the stipulated time
T4 or more controls for condition to execute above-mentioned each report, then can avoid rigid to making the temperature of condenser be easy the compressor risen
Condenser temperature after stopping is judged, false alarm is carried out so as to effectively eliminate or reduce to salesman or maintenance center
The unfavorable condition of announcement.
Description of the drawings
Fig. 1 is the block diagram of the management system for the showcase for applying one embodiment of the invention.
Fig. 2 is the stereogram of an embodiment of the showcase of Fig. 1.
Fig. 3 be the showcase of Fig. 2, by skirting board (Japanese：キ ッ Network プ レ ー ト) open in the state of amplification it is three-dimensional
Figure.
Fig. 4 is the enlarged view of the main part of Fig. 3.
Fig. 5 be the showcase of Fig. 1, skirting board is opened in the state of the indoor major part top view of machinery.
Fig. 6 be performed by the end side control device of the management system to constituting Fig. 1 barrier obstruction report control into
The flow chart of row explanation.
Fig. 7 is the condenser or plugged filter report performed by the end side control device of the management system to constituting Fig. 1
Accuse the flow chart that control illustrates.
Fig. 8 is equally the report of each report control performed by the end side control device of the management system to constituting Fig. 1
When the flow chart that illustrates of action.
(symbol description)
The management system of 1 showcase；
2 shops；
3 showcases；
4 end side control devices (control device)；
6 Centralized Controllers (control device)；
7 maintenance center computers (control device)；
8 display units；
11 compressors；
12 condensers；
15 condenser pressure fan；
16 main bodys；
19 Machine Rooms；
21 skirting boards；
23 condenser filters；
26 key switches (detector)；
27 condenser temperature sensors；
R refrigerant circuits.
Specific implementation mode
(1) structure of the management system 1 of showcase
Hereinafter, being based on attached drawing, one embodiment of the present invention is illustrated.In Fig. 1, the implementation of the present invention is applied
Example showcase management system 1 be, for example, be to what more showcases 3 being set in the shop 2 of convenience store were managed
System, above-mentioned management system 1 by the end side control device 4 for being set to each showcase 3, the office for being set to shop 2 etc. work
It (signs maintenance contract with shop to exhale for the Centralized Controller 6 and the maintenance center that is set to outside shop of higher level's control device
Cry center etc.) the maintenance center computer 7 as higher level's control device construct.
Each showcase 3 include by compressor 11, condenser 12, decompressor (expansion valve etc.) 13 and cooler 14 etc. according to
The secondary well known refrigerant circuit R annularly connected, end side control device 4 control the operating of above equipment.In addition,
End side control device 4 is made of the microcomputer including microprocessor, and Centralized Controller 6 is also by including microprocessor
Microcomputer constitute.
Each end side control device 4 is endowed ID respectively, and above-mentioned end side control device 4 is by communication line 9 with can be into
The mode that row sent, received signal is connect with Centralized Controller 6.Centralized Controller 6 according to ID to each end side control device 4 into
Row identification, can be by receiving related with operational situation data, and from upper from the end side control device 4 of each showcase 3
It states Centralized Controller 6 and sends setting data to the end side control device 4 of each showcase 3, come old to more that are set to shop 2
The concentration of row cabinet 3 is managed.
In addition, Centralized Controller 6 includes the display unit 8 being constituted by lcd monitors, etc..Above-mentioned Centralized Controller 6 is via net
Network is connect in a manner of it can be sent, receive signal with maintenance center computer 7.Centralized Controller 6 is collected, comes from
The data of each end side control device 4 are sent to maintenance center computer 7, and can will also set data etc. from maintenance center
Computer 7 is sent to Centralized Controller 6.In addition, above-mentioned end side control device 4, Centralized Controller 6 and maintenance center computer 7
It can play a role as the control device of the present invention.
(2) structure of showcase 3
Then, with reference to Fig. 2~Fig. 5, the structure of the showcase 3 of embodiment is illustrated.The showcase 3 of embodiment is to use
In the so-called horizontal (Japanese for displaying and peddling the commodity such as ice cream：Flat pattern) open Showcase, main body 16 is by upper surface
The heat insulating box 17 of opening is constituted.In addition, the showroom 18 of storage and display goods is formed in above-mentioned heat insulating box 17,
16 lower part of main body of 17 downside of heat insulating box is formed with Machine Room 19.Be provided in above-mentioned Machine Room 19 above-mentioned compressor 11,
Condenser 12 and condenser pressure fan 15 etc. will be cooled to defined cryogenic temperature by cooler 14 in showroom 18.
In this case, end side control device 4 is configured to control the rotating speed of compressor 11 by using inverter and incite somebody to action
Showroom 18 is cooled to defined cryogenic temperature, stops in the case of lower limit temperature as defined in the temperature of showroom 18 is reduced to
Compressor 11 starts compressor 11 in the case of the temperature rise of showroom 18 to defined recovery temperature.
In this case, condenser 12 is configured at the side of Machine Room 19, in machinery corresponding with above-mentioned condenser 12
The side of room 19 is equipped in the present invention in a manner of freely openable as operated when being cleaned to condenser filter
Component skirting board 21.It is formed with the air entry (slit) 22 for sucking extraneous air in above-mentioned skirting board 21, is being condensed
Device 12 is equipped with condenser filter 23 by 21 side of skirting board in a manner of it can assemble and disassemble.
Here, skirting board 25 is also equipped in the side of the Machine Room 19 with 21 opposite side of above-mentioned skirting board, above-mentioned
Skirting board 25 is formed with exhaust outlet (slit) 30.In addition, if condenser is operated with pressure fan 15, extraneous air is from air entry 22
It is inhaled into, and condenser 12 is vented in via condenser filter 23.The refrigerant for the high temperature being discharged from compressor 11 is being divulged information
It condenses in the condenser 12 for having extraneous air, and after being depressurized in decompressor 13, is evaporated in cooler 14.At this moment
Under heat-absorbing action, make to be cooled down in showroom 18.
In addition, the extraneous air of condenser 12 is flowed through after in Machine Room 19, from the exhaust outlet 30 positioned at opposite side
It is expelled to outside.Here, the extraneous air in the application refers to the air in shop 2 around showcase 3.
In addition, symbol 24 is the magnetic force for being kept into the state for closing the skirting board 21 of 23 side of condenser filter
Catcher (Japanese：マグネットキャッチャ).In addition, symbol 26 be mounted to main body 16, as the mechanical of detector
Key switch, contact is disconnected by the opening and closing of skirting board 21, is closed, to detect the opening and closing of above-mentioned skirting board 21.This
Outside, symbol 27 is mounted to the condenser temperature sensor at the piping of the refrigerant outlet side of condenser 12, is in order to right
The temperature of condenser 12 is detected and is arranged.In addition, key switch 26 and condenser temperature sensor 27 are controlled with end side
Device 4 processed connects, and the output of above-mentioned key switch 26 and condenser temperature sensor 27 is input to end side control device 4.
(3) the barrier obstruction report control carried out by end side control device 4
Then, with reference to Fig. 6 and Fig. 8, the barrier obstruction report control carried out by end side control device 4 is said
It is bright.As described above, extraneous air is vented in condenser 12 by condenser pressure fan 15, if the air entry of skirting board 21,25
22 and/or exhaust outlet 30 near be placed with the barriers such as food-box, then extraneous air is difficult to be sucked or be discharged, therefore, energy
The performance of ventilating of condenser 12 is set to be deteriorated.Thus, in the case of the temperature rise of condenser 12, make that refrigerant circuit R's is cold
But ability reduces, to make the temperature rise of showroom 18.
Thus, whether the end side control device 4 of showcase 3 is in step s in fig. 6 first to being provided with barrier resistance
Plug omen label is judged, if above-mentioned label is reset, is transferred to step S2, is started to defined barrier occlusion detection
Whether condition, which meets, is judged.In embodiment, it refers to " condensation that the barrier occlusion detection in above-mentioned steps S2, which starts condition,
The temperature for the condenser 12 that device temperature sensor 27 detects is defined fiducial temperature Tb (when refrigerant circuit R is usually operated
Condenser 12 minimum temperature.Such as+30 DEG C etc.) more than state continue for stipulated time t2 (the long time, such as
10 minutes etc.) more than.
Currently, if after the startup of compressor 11, refrigerant circuit R starts usually to operate, and in the temperature of condenser 12
The state for rising and being in fiducial temperature Tb or more continue for stipulated time t2 or more, then end side control device 4 is judged as obstacle
Object occlusion detection starts condition satisfaction, to be transferred to step S3 from step S2, and executes the obstruction report control of (beginning) barrier
System.That is, in step s3, end side control device 4 judges whether defined barrier occlusion detection condition meets.
In embodiment, the barrier occlusion detection condition in above-mentioned steps S3 refers to the " condensation that condenser temperature sensor 27 detects
The temperature of device 12 is in stipulated time t1 (the shorter times.Such as 1 minute etc.) within rise as defined in variation detected value T1deg
More than (for example, 5 degree) ".Above-mentioned barrier occlusion detection condition refers to that the specific temperature rise of condenser 12 is the unit stipulated time
The variation detected value T1deg or more of t1.
Here, when the refrigerant circuit R of any showcase 3 is in usual operating, near air entry 22 and exhaust outlet 30
Shop 2 in be placed with barrier (accumulation has food-box etc.), then extraneous air is not easy to be inhaled in the case of air entry 22
Enter condenser filter 23, is not easy to be discharged from exhaust outlet 30 by the air (extraneous air) of condenser 12, it is therefore, external empty
Gas is drastically deteriorated to the air permeability of condenser 12, and the temperature of condenser 12 also steeply rises, to make the temperature of above-mentioned condenser 12
Degree climbing is got higher.In addition, the cooling capacity of refrigerant circuit R is deteriorated in this case, there is the danger for leading to failure.
In the case where the temperature rise of the condenser 12 within stipulated time t1 is variation detected value T1deg or more, on
The end side control device 4 for stating showcase 3 is judged as that the barrier occlusion detection condition in step S3 meets, and exists because inhaling
Gas port 22 and/or exhaust outlet 30 are blocked the omen of failure by the barrier that barrier blocks and generates, and are transferred to step S4, setting
Barrier blocks omen label.Once being provided with above-mentioned barrier obstruction omen label, then end side control device 4 is from Fig. 8's
Step S14 is transferred to step S18.
In addition, in above-mentioned steps S18, barrier is blocked the ID mono- of data reporting and itself by end side control device 4
It rises and is sent to Centralized Controller 6.If Centralized Controller 6 receives barrier from end side control device 4 blocks data reporting,
Carry out for example " there is the omen that barrier occurs in showcase 3 (display ID) and blocks failure in display unit 8.It please remove obstacle
Object." such report display.After salesman sees that the report that above-mentioned Centralized Controller 6 is sent to display unit 8 is shown, it can will place
Barrier (food-box etc.) near the showcase 3 of reported ID is removed.
In addition, end side control device 4 is placed obstacles in step s 4 after object obstruction omen label, from the step S1 of Fig. 6
Next time can be transferred to step S5.In step s 5, whether end side control device 4 is full to defined barrier obstruction condition subsequent
Foot is judged.In embodiment, above-mentioned barrier obstruction condition subsequent refers to that " condenser temperature sensor 27 detects cold
The value when temperature of condenser 12 is marked than object obstruction omen of placing obstacles in step s 4 reduces defined releasing value T2deg (examples
Such as, 3 degree etc.) more than ".
If for example, barrier occlusion detection condition in step s3 meets, and being judged as that there are barriers to block failure
Omen when condenser 12 temperature be+37 DEG C, then in step s 5 to the temperature of condenser 12 whether be reduced to+34 DEG C into
Row judges, if here, be not reduced to above-mentioned+34 DEG C, end side control device 4 be transferred to from step S5 Fig. 8 step S14,
S18 simultaneously continues to report to salesman.
It on the other hand, can be from above-mentioned showcase 3 if above-mentioned salesman removes barrier according to the report to salesman
Air entry 22 swimmingly pumps out extraneous air, and air is made to be smoothly discharged from exhaust outlet 30, therefore, makes towards condenser
12 performance of ventilating restores to normal condition.Thereby, it is reduced in the temperature of condenser 12, and is reduced to above-mentioned+34 DEG C
In the case of, end side control device 4 is judged as that barrier obstruction condition subsequent meets and there is no barriers to hinder in step s 5
The omen for filling in failure to be transferred to step S6, and resets barrier obstruction omen label.
Then, since end side control device 4 is transferred to step S15 from the step S14 of Fig. 8 and is not transferred to step S18,
Therefore, end side control device 4 stops sending barrier obstruction data reporting to Centralized Controller 6.If blocking without barrier
Data reporting is sent to Centralized Controller 6 from end side control device 4, then eliminates being sent to display unit 8, above-mentioned in the presence of generation
Barrier blocks the such report display of omen of failure, therefore, also releases the report to salesman.
In this way, specific temperature rise of the end side control device 4 according to condenser 12, to whether there is because air entry 22 and/
Or exhaust outlet 20 is judged by the omen for the barrier obstruction failure that barrier blocks and generates, and is judged as the feelings there are omen
Under condition, the barrier obstruction report control reported to salesman by the display unit 8 of Centralized Controller 6 is executed, therefore, it is possible to
According to the specific temperature rise of condenser 12, to the barriers such as food-box be positioned over showcase 3 air entry 22 or exhaust outlet 30 it is attached
The case where closely performance of ventilating of condenser 12 being made to be deteriorated, there is the omen for leading to barrier obstruction failure, is judged, and energy
It is reported to salesman, to supervise salesman to remove above-mentioned barrier.
Thereby, showcase 3 can be made to avoid result in the unfavorable condition of barrier obstruction failure in advance, it is reliable so as to improve
Property.Further, since the report to the maintenance center computer 7 of maintenance center can be eliminated or be reduced, therefore, it is possible to realize repair at
This reduction.
Particularly, in embodiment, it since end side control device 4 can block in barrier in report control, is based on
Condenser temperature sensor 27 exports and when the temperature of condenser 12 rises defined variation within stipulated time t1
In the case of detected value T1deg or more, it is judged as there are the omen that barrier blocks failure, it is cold therefore, it is possible to accurately grasp
The case where specific temperature rise of condenser 12 is got higher, so as to which reliably there will be omen this case that barrier blocks failure
It reports to salesman.
In addition, in embodiment, since end side control device 4 will make the temperature of condenser 12 be in defined benchmark temperature
Degree Tb or more state continue stipulated time t2 or more be used as condition, come execute barrier obstruction report control, therefore, it is possible to
After showcase 3 is in common operating condition, the specific temperature rise of condenser 12 is judged, so as to effectively eliminate
Or reduce error reporting to salesman.
In addition, in embodiment, since the temperature in condenser 12 is from being judged as that there are the omens that barrier blocks failure
When value have dropped as defined in the case of releasing value T2deg or more, end side control device 4 is judged as that there is no barriers to hinder
The omen for filling in failure, to reset barrier obstruction omen label, therefore, it is possible to be reduced come accurate by the temperature of condenser 12
Ground disturbance in judgement object is removed and has restored this case towards the performance of ventilating of condenser 12, to release the report to salesman
It accuses.
(3-1) adds obstacle sensor
In addition, in addition to the above described embodiments, also (infrared ray or electricity can be utilized in the object sensor of placing obstacles of showcase 3
The noncontacting proximity sensor etc. of wave), which can carry out the barrier near air entry 22 and exhaust outlet 30
Detection.If in addition, by end side control device 4, above-mentioned obstacle is executed as condition using obstacle sensor detection barrier
Object obstruction report control, then only can just execute in the case where barrier actually exists near air entry 22 or exhaust outlet 30
Barrier obstruction report control, sentences thus, it is possible to significantly increase to what the omen of whether there are obstacles obstruction failure carried out
Disconnected precision.
(4) condenser or plugged filter report carried out by end side control device 4 controls
Then, with reference to Fig. 7 and Fig. 8, illustrate the condenser carried out by end side control device 4 or plugged filter report control
System.As described above, making extraneous air be vented in condenser 12, the dust in said external air with pressure fan 15 by condenser
It is captured by condenser filter 23.Thus, make dust (dirt) savings in condenser filter 23, meeting because showcase 3 operates
Generate blocking.If condenser filter 23 is blocked because of dust so that the performance of ventilating of condenser 12 reduces, then refrigerant returns
The cooling capacity of road R is deteriorated, the temperature rise of showroom 18, to there is the danger for leading to failure.
Thus, condenser filter 23 needs to carry out for example inferior on every Mondays regular cleaning by employee.To condenser
When filter 23 is cleaned, it is first turned on skirting board 21.If above-mentioned skirting board 21 is opened, the contact example of key switch 26
Such as it will disconnect, therefore, the variation that end side control device 4 can export caused by the disconnection according to above-mentioned contact, to skirting board
21 be opened this case be detected.After opening skirting board 21 like this, by condenser filter 23 from Machine Room 19
It takes out and is cleaned.After cleaning, condenser filter 23 is installed in again in Machine Room 19, and closes skirting board
21.Thereby, since key switch 26 is by contact closure, end side control device 4 can draw according to the closure of above-mentioned contact
Output variation detect skirting board 21 be closed this case.
However, even if being cleaned to condenser filter 23, there is also the dusts not captured by condenser filter 23
The case where savings in operating for a long time makes above-mentioned condenser 12 itself block in condenser 12, if if letting alone, exist
Showcase 3 is caused to generate the danger of catastrophe failure.
Thus, the end side control device 4 of showcase 3 will execute condenser or plugged filter report control.Above-mentioned
In condenser or plugged filter report control, end side control device 4 is in the step S7 of Fig. 7 to whether being provided with condenser
It blocks omen label or condenser plugged filter omen label is judged, if above-mentioned label is reset, be transferred to step
Rapid S8 judges whether defined condenser or plugged filter testing conditions meet.In embodiment, above-mentioned steps S8
In condenser or plugged filter testing conditions refer to " at the temperature for the condenser 12 that condenser temperature sensor 27 detects
Stipulated time t6 (for example, 1 minute etc.) is continue in the state of defined high temperature detection temperature Th (for example,+50 DEG C etc.) or more
It is carried out continuously specified period C1 (for example, 4 periods etc.) or more above operation cycles.Here, operation cycle refers to compression
The period of operating-stopping of machine 11.In addition, the high temperature detection temperature Th of embodiment is configured to be in different than refrigerant circuit R
The low value of the abnormal high temperature value of normal high pressure and the condenser 12 when stopping (high pressure mistake).
Here, when in the operating of the refrigerant circuit R of arbitrary showcase 3, condenser filter 23 or condenser 12 are sent out
It is raw to block, so that extraneous air is deteriorated to the performance of ventilating of condenser 12, then the temperature of condenser 12 is gradually increasing, in such case
The cooling capacity of lower refrigerant circuit R is deteriorated, and there is the danger for leading to failure, therefore, makes because of above-mentioned high pressure mistake above-mentioned
The operating of refrigerant circuit R stops.
The state that high temperature detection temperature Th or more is in the temperature of condenser 12 continue for the fortune of stipulated time t6 or more
In the case that the turn-week phase is carried out continuously specified period C1 or more, the end side control device 4 of above-mentioned showcase 3 is judged as step
Condenser or plugged filter testing conditions in S8 meet, and are then transferred to step S9.
The omen of (4-1) condenser filter clog fault is reported
In above-mentioned steps S9, end side control device 4 changes according to the output of above-mentioned key switch 26, to than certain
In a period of period (such as one week) is long, whether skirting board 21, which is previously opened (the opening resume for whether having skirting board 21), is sentenced
It is disconnected.In addition, in the case where skirting board 21 is unopened in a period of longer than certain period, it is judged as longer than certain period
In a period of condenser filter 23 is not cleaned, exist generated because condenser filter 23 blocks condenser filtering
The omen of device plugging fault, to be transferred to step S11, setting plugged filter omen marks.Once above-mentioned filter is arranged
Omen label is blocked, then end side control device 4 is transferred to step S19 (at this point, aftermentioned condenser is stifled from the step S16 of Fig. 8
Plug omen label is reset).
Then, in above-mentioned steps S19, end side control device 4 is by the ID mono- of plugged filter data reporting and itself
It rises and is sent to Centralized Controller 6.If Centralized Controller 6 receives plugged filter data reporting from end side control device 4,
Carry out for example " there is the omen for the condenser filter clog fault that showcase 3 (display ID) occurs in display unit 8.It please clean
The such report display of condenser filter ".After salesman sees that the report that above-mentioned Centralized Controller 6 is sent to display unit 8 is shown,
The skirting board 21 of the showcase 3 of reported ID can be opened, and the taking-up of condenser filter 23 is cleaned.
In addition, after plugged filter omen label is arranged in end side control device 4 in step s 11, then from the step of Fig. 7
Rapid S7 is transferred to step S12.In step s 12, end side control device 4 releases item to defined condenser or plugged filter
Whether part, which meets, is judged.In embodiment, above-mentioned condenser or plugged filter condition subsequent refer to that " condenser temperature passes
The temperature for the condenser 12 that sensor 27 detects is in the defined releasing temperature Tr (example lower than above-mentioned high temperature detection temperature Th
Such as ,+45 DEG C etc.) state below continues stipulated time t5 (for example, 1 minute etc.) or more ".If here, above-mentioned condenser 12
Temperature be not reduced to above-mentioned releasing temperature Tr hereinafter, then end side control device 4 from step S12 be transferred to Fig. 8 step S16,
Step S19 simultaneously continues to report to salesman.
It on the other hand, can if above-mentioned salesman carries out the cleaning of condenser filter 23 according to the report to salesman
Restore the normal condition that the condenser 12 of above-mentioned showcase 3 is swimmingly vented in extraneous air.Thereby, in the temperature of condenser 12
In the case that degree is gradually decrease to above-mentioned releasing temperature Tr and the state is made to continue stipulated time t5 or more, end side control dress
It sets 4 and is judged as that condenser or plugged filter condition subsequent meet in step s 12, to be judged as that there is no condensers to filter
The omen of device plugging fault, and then it is transferred to step S13, plugged filter omen is marked and is reset.
Then, since end side control device 4 is not transferred to step S19 from the step S16 of Fig. 8, above-mentioned end side
Control device 4 stops sending plugged filter data reporting to Centralized Controller 6.If plugged filter data reporting is not from end
End side control device 4 is sent to Centralized Controller 6, then is blocked up being sent to display unit 8, above-mentioned in the presence of generation condenser filter
The such report display of omen for filling in failure is eliminated, and therefore, releases the report to salesman.
The omen of (4-2) blockage of condenser failure is reported
On the other hand, in the step 9 of Fig. 7, when depositing the cleaning for having carried out condenser filter 23 within certain period
In the case of resume, end side control device 4 be judged as existing because condenser 12 itself blocks and the blockage of condenser that generates therefore
The omen of barrier, to be transferred to step S10, setting blockage of condenser omen marks.If being provided with above-mentioned blockage of condenser omen
Label, then end side control device 4 is transferred to step S17 from the step S15 of Fig. 8.
In addition, in above-mentioned steps S17, end side control device 4 is by the ID mono- of blockage of condenser data reporting and itself
It rises and is sent to Centralized Controller 6.If Centralized Controller 6 receives blockage of condenser data reporting from end side control device 4,
Via network by the maintenance center computer 7 of above-mentioned blockage of condenser reported data transmission to maintenance center.In this case, exist
In maintenance center computer 7, such as " there are the condenser of the showcase 3 of generation shop (display store name) (display ID) is stifled for progress
Fill in the omen of failure.Please clean condenser " such report display.The attendant of maintenance center sees above-mentioned maintenance center electricity
After the report of brain 7 is shown, the shop where report can be gone to, the condenser 12 of the showcase 3 of above-mentioned ID is cleaned itself.
In addition, end side control device 4 is provided in step slo after blockage of condenser omen label, it is next from Fig. 7
Step S7 be transferred to step S12.In step s 12, end side control device 4 is in the same manner as described above to condenser or filter
Whether blocking condition subsequent, which meets, is judged.If keeping condenser or filter stifled here, the temperature of condenser 12 is not reduced to
Fill in the temperature that condition subsequent meets, then end side control device 4 is transferred to step S15, the step S17 of Fig. 8 from step S12, and
And continue to the maintenance center report via Centralized Controller 6.
It on the other hand, can if attendant itself cleans according to the report to maintenance center and to condenser 12
The normal condition of enough condensers 12 for restoring swimmingly to be vented in above-mentioned showcase 3 to extraneous air.Thereby, in condenser 12
Temperature reduces, and in the case of being reduced to above-mentioned releasing temperature Tr and the state being made to continue stipulated time t5 or more, and end side is controlled
Device 4 processed is judged as that condenser or plugged filter condition subsequent meet in step s 12, and blockage of condenser failure is not present
Omen, and then be transferred to step S13, and blockage of condenser omen is marked and is reset.
Then, due to not being transferred to step S17 from the step S15 of Fig. 8, above-mentioned end side control device 4 stop to
Centralized Controller 6 sends blockage of condenser data reporting.If blockage of condenser data reporting is not sent out from end side control device 4
It send to Centralized Controller 6, then stops reporting to the transmission of maintenance center computer 7, therefore, also release the service people to maintenance center
The report of member.
In this way, in the case that the state for being in defined high temperature detection temperature Th or more in the temperature of condenser 12 continues,
Whether end side control device 4 is to being not carried out in a period of longer than during certain the cleaning of condenser filter 23 and sentencing
It is disconnected, in the case of implementing cleaning within certain period, it is judged as that there is the condenser generated by the blocking of condenser 12 blocks up
It fills in the omen of failure and is reported to maintenance center, in the case of not cleaned in a period of longer than certain period, judged
To there is the omen of the condenser filter clog fault generated by the blocking of condenser filter 23 and execute to salesman
Condenser or plugged filter the report control of report, therefore, above-mentioned end side control device 4 can be according to the temperature of condenser 12
Degree rises causes the omen of the plugging fault of condenser 12 or condenser filter 23 to judge to existing, at this point, than one
Between periodically it is long in a period of when not carrying out the cleaning of condenser filter 23, above-mentioned end side control device 4 can be reported to salesman
The cleaning for accusing and supervising condenser filter 23, when having carried out cleaning to condenser filter 23, above-mentioned end side control dress
Setting 4 can be judged as that condenser 12 itself is blocked and reported to maintenance center.
Thereby, above-mentioned end side control device 4 is carried out in the case where condenser filter 23 is blocked to shop automatically
Member reports and carries out the cleaning of condenser filter 23, and is reported to maintenance center in the case where condenser 12 blocks itself
It accuses and the such reply occasion of attendant's reply is allowed to distinguish, so as to mitigate the burden of salesman and accurately avoid because cold
Cause showcase that the unfavorable condition of catastrophe failure occurs caused by the blocking of condenser 12 or condenser filter 23.
In addition, the temperature in condenser 12 is in the defined releasing temperature Tr below shape lower than high temperature detection temperature Th
In the case that state continues, end side control device 4 is judged as omen and condenser filter there is no blockage of condenser failure
The omen of plugging fault, therefore, it is possible to accurately judge to filter condenser 12 or condenser according to the reduction of condenser temperature
Device 23 clean and the performance of ventilating towards condenser 12 is made to restore this case, to release to maintenance center or salesman
Report.
In addition, the showcase 3 as embodiment has：Machine Room 19, the Machine Room 19 are formed in the lower part of main body 16
And it is provided with compressor 11, condenser 12, condenser filter 23 and condenser pressure fan 15；Skirting board 21, the skirt
Plate 21 is set to main body 16 and is opened and closed when being cleaned to condenser 23；Key switch 26, the key switch 26
The opening and closing of above-mentioned skirting board 21 is detected, in this case, end side control device 4 is according to above-mentioned key switch 26
Export to whether having carried out the cleaning of condenser filter 23 and being detected, therefore, it is possible to using the opening and closing to skirting board 21 into
The key switch 26 of row detection, to whether implementing the cleaning of condenser filter 23 and being detected.
Whether (4-3) be according to the variation of condenser temperature to implementing the cleaning of condenser filter 23 and judging
Here, in the above-described embodiments, using the key switch 26 being detected to the opening and closing of skirting board 21, to whether real
The cleaning for having applied condenser filter 23 is detected, however, not limited to this, also can be according to the shoe of the temperature change of condenser 12
It goes through and is judged.If that is, being cleaned to condenser filter 23, the performance of ventilating towards condenser 12 can be improved,
The raising of above-mentioned performance is embodied by the temperature change of condenser 12.Thus, it is possible to which end side control device 4 is made to advance for
The resume of the temperature change for the condenser 12 that condenser temperature sensor 27 is detected, and based on the resume of above-mentioned temperature change,
To whether implementing the cleaning of condenser filter 23 and being detected.
(4-4) is according to cleaning resume to whether implementing the cleaning of condenser filter 23 and judging
In addition, in the case where having cleaned condenser filter 23, salesman can input the record information for cleaning result
Centralized Controller 6 etc., and information related with above-mentioned cleaning resume is sent to end side control device 4 and is retained.
In this case, end side control device 4 can be by the relevant information of cleaning resume with condenser filter 23 to being
The cleaning of the no condenser filter 23 for implementing above-mentioned showcase 3 is detected.
(5) judgement after forbidding compressor 11 just to start
Here, since the temperature of condenser 12 rapidly rises after the just startup of compressor 11, it is easy in above-mentioned barrier
False judgment occurs in obstruction report control and condenser or plugged filter report control.Therefore, if end side control device 4
To begin to pass through stipulated time t3 (defined longer times from the startup of compressor 11.Such as 10 minutes etc.) more than be item
Part can then be avoided to making condenser to execute barrier obstruction report control and condenser or plugged filter report control
12 temperature is easy the condenser temperature after the compressor 11 risen just starts and is judged, therefore, it is possible to effectively eliminating or
Reduce the unfavorable condition that error reporting is carried out to salesman or maintenance center.
(6) forbid the judgement in the rotating speed uphill process of compressor 11
Further, since compressor 11 controls its rotating speed by inverter, and the condenser when the rotating speed rises
12 temperature also rapidly rises, and therefore, is easy to block report control and condenser or plugged filter report in above-mentioned barrier
False judgment occurs in control.Thus, if end side control device 4 does not rise to condition to execute barrier with the rotating speed of compressor 11
Hinder object obstruction report control and condenser or plugged filter report control, then can avoid to making the temperature of condenser 12 be easy
The condenser temperature when rotating speed of raised compressor 11 rises is judged, therefore, it is possible to effectively eliminate or reduce to shop
Member or maintenance center carry out the unfavorable condition of error reporting.
(7) forbid the judgement after the rigid stopping of condenser pressure fan 15
Further, since condenser pressure fan 15 stop and make ventilation just stopped the temperature of post-condenser 12 rapidly on
It rises, therefore, is easy the generation mistake in the obstruction report control of above-mentioned barrier and condenser or plugged filter report control and sentences
It is disconnected.Thus, if end side control device 4 from the stopping of condenser pressure fan 15 to begin to pass through stipulated time t4 (for example, 5 points
Clock etc.) more than for condition come execute barrier obstruction report control and condenser or plugged filter report control, then can keep away
Exempt to judge the condenser temperature after making the condenser that the temperature of condenser 12 is easy to rise with pressure fan 15 just be stopped, because
This, effectively can eliminate or reduce the unfavorable condition that error reporting is carried out to salesman or maintenance center.
In addition, in the above-described embodiments, end side control device 4 is made to be performed simultaneously barrier obstruction report control and condensation
Device or plugged filter report control, but be also contained in and only execute barrier obstruction report control in the invention of technical solution one
Situation is also included in the invention of technical solution seven the case where only executing condenser or plugged filter report control.
In addition, in embodiment, blocking failure to whether there are obstacles by the end side control device 4 of showcase 3
Omen, the omen with the presence or absence of blockage of condenser failure and the omen with the presence or absence of condenser filter clog fault carry out
Judge, and carry out the report to Centralized Controller 6 or maintenance center computer 7, however, not limited to this, can also be controlled from end side
Device 4 is touched by the related data of the temperature of the condenser 12 detected with condenser temperature sensor 27 and with key switch 26
The disconnection of point, the related data of closure (output) are sent to Centralized Controller 6 or maintenance center computer 7 (via Centralized Controller
6), and by Centralized Controller 6 or 7 aspect of maintenance center computer judged, and reported to salesman or attendant.
In addition, in embodiment, being detected to the opening and closing of skirting board 21 by the composition of mechanical key switch 26
Detector, but the detector being detected to the opening and closing of skirting board 21 is not limited to this, such as may be used and be set to skirting board
The magnet of 21 sides and the guide switch (Japanese for being set to 16 side of main body：リ ー De ス イ ッ チ) constitute to the opening and closing of skirting board 21 into
The detector of row detection, can also be used other sensors (for example, optical sensor etc.) constitute to the opening and closing of skirting board 21 into
The detector of row detection.
In addition, numerical value and time shown in above-described embodiment are not limited to this, can be applied according to management system
The case where shop, carries out setting appropriate.In addition, about showcase 3, it is not limited to the horizontal open Showcase of embodiment,
Showcase etc. of the present invention for vertical open Showcase or with glass door is also effective.
Claims (14)
1. the management system of a kind of management system of showcase, the showcase is managed showcase, the showcase exists
Include compressor, condenser, condenser filter and condenser pressure fan in main body, the showcase will be by described cold
The extraneous air that condenser is sucked with pressure fan from air entry is vented in the condenser via the condenser filter, and from row
Gas port is discharged, and the management system of the showcase is characterised by comprising：
Condenser temperature sensor, the condenser temperature sensor are detected the temperature of the condenser；And
Control device,
The control device is according to the specific temperature rise of the condenser, to whether there is because of the air entry and/or the row
The omen that gas port is blocked failure by the barrier that barrier blocks and generates is judged, and execution is being judged as that there are omens
In the case of to salesman report barrier obstruction report control.
2. the management system of showcase as described in claim 1, which is characterized in that
The control device blocks the output in report control according to the condenser temperature sensor in the barrier, and
In the case that the temperature of the condenser is more than the variation detected value (T1deg) as defined in being risen within the stipulated time (t1)
It is judged as that there are the omens that the barrier blocks failure.
3. the management system of showcase as claimed in claim 1 or 2, which is characterized in that
The state that the control device is in defined fiducial temperature (Tb) or more with the temperature of the condenser continue for providing
More than the time (t2) it is condition, executes the barrier obstruction report control.
4. the management system of showcase as claimed any one in claims 1 to 3, which is characterized in that
Include the obstacle sensor for being detected to the barrier near the air entry and the exhaust outlet,
The control device is detected as condition the barrier with the obstacle sensor, executes the barrier resistance
Plug report control.
5. the management system of showcase according to any one of claims 1 to 4, which is characterized in that
The condenser temperature from be judged as there are the barrier block failure omen when value reduce as defined in
In the case of more than releasing value (T2deg), the control device is judged as that there is no the omens of barrier obstruction failure.
6. the management system of the showcase as described in any one of claim 1 to 5, which is characterized in that
Include to whether implementing the element that the cleaning of the condenser filter is detected,
In the case of being in the state of defined high temperature detection temperature (Th) or more in the temperature of the condenser and persistently carry out, institute
Control device is stated to whether the cleaning of the condenser filter being not carried out in a period of longer than during certain judging, and
Condenser or plugged filter report control are executed, in the case of implementing cleaning within certain period, the control device is sentenced
Break to there is the omen of blockage of condenser failure generated by the blocking of the condenser and reported to maintenance center, than
In the case of cleaning is not carried out in a period of length during certain, the control device is judged as existing because of the condenser filter
Blocking and the omen of condenser filter clog fault that generates and reported to salesman.
7. the management system of a kind of management system of showcase, the showcase is managed showcase, the showcase exists
Include compressor, condenser, condenser filter and condenser pressure fan in main body, the showcase will be by described cold
The extraneous air that condenser is sucked with pressure fan from air entry is vented in the condenser via the condenser filter, and from row
Gas port is discharged, and the management system of the showcase is characterised by comprising：
The condenser temperature sensor that the temperature of the condenser is detected；
To whether implementing the element that the cleaning of the condenser filter is detected；And
Control device,
In the case of being in the state of defined high temperature detection temperature (Th) or more in the temperature of the condenser and persistently carry out, institute
Control device is stated to whether the cleaning of the condenser filter being not carried out in a period of longer than during certain judging, and
Condenser or plugged filter report control are executed, in the case of performing cleaning within certain period, the control device is sentenced
Break to there is the omen of blockage of condenser failure generated by the blocking of the condenser and reported to maintenance center, than
In the case of cleaning is not carried out in a period of length during certain, the control device is judged as existing because of the condenser filter
Blocking and the omen of condenser filter clog fault that generates and reported to salesman.
8. the management system of showcase as claimed in claims 6 or 7, which is characterized in that
Including：Machine Room, the Machine Room are formed in the lower body part and are provided with the compressor, the condenser, institute
State condenser filter and the condenser pressure fan；Skirting board, the skirting board are set to the main body and to institutes
It states when condenser filter is cleaned and opens and closes；And detector, the detector carry out the opening and closing of the skirting board
Detection,
Whether the control device is according to the output of the detector to implementing the cleaning of the condenser filter and examining
It surveys.
9. the management system of showcase as claimed in claims 6 or 7, which is characterized in that
The resume of the temperature change for the condenser that the control device is detected according to the condenser temperature sensor, it is right
The cleaning for whether implementing the condenser filter is detected.
10. the management system of showcase as claimed in claims 6 or 7, which is characterized in that
The control device according to information related with the cleaning resume of condenser filter, to whether implement it is described cold
The cleaning of condenser filter is detected.
11. the management system of the showcase as described in any one of claim 6 to 10, which is characterized in that
It is in the state of the defined releasing temperature (Tr) lower than high temperature detection temperature (Th) in the temperature of the condenser
In the case of lasting progress, the control device is judged as that there is no the omen of the blockage of condenser failure and the condensers
The omen of filter clog fault.
12. the management system of the showcase as described in any one of claim 1 to 11, which is characterized in that
The control device executes each report to begin to pass through the stipulated time (t3) or more from the compressor start as condition
Accuse control.
13. the management system of the showcase as described in any one of claim 1 to 12, which is characterized in that
The control device does not rise to condition with the rotating speed of the compressor, executes each report control.
14. the management system of the showcase as described in any one of claim 1 to 13, which is characterized in that
The control device is with each by more than the stipulated time (t4) for condition, executing after stopping from the condenser pressure fan
The report control.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017059383A JP2018162906A (en) | 2017-03-24 | 2017-03-24 | Management system for showcase |
| JP2017-059383 | 2017-03-24 |
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| Publication Number | Publication Date |
|---|---|
| CN108626962A true CN108626962A (en) | 2018-10-09 |
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ID=63706213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810204086.8A Pending CN108626962A (en) | 2017-03-24 | 2018-03-13 | The management system of showcase |
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| Country | Link |
|---|---|
| JP (1) | JP2018162906A (en) |
| CN (1) | CN108626962A (en) |
| TW (1) | TW201835702A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219942A (en) * | 2018-11-26 | 2020-06-02 | 珠海格力电器股份有限公司 | Refrigerator fault prediction method and device |
| CN111288717A (en) * | 2018-12-10 | 2020-06-16 | 东芝生活电器株式会社 | Refrigerator with a door |
| CN115251665A (en) * | 2022-08-01 | 2022-11-01 | 江苏星星冷链科技有限公司 | Automatic adjust radiating mechanical control by temperature change show cupboard of condensation |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7501136B2 (en) | 2020-06-16 | 2024-06-18 | 富士電機株式会社 | Showcase |
| CN112782219A (en) * | 2020-12-29 | 2021-05-11 | 广东普门生物医疗科技有限公司 | Method and device for detecting ventilation performance of ventilation pipe, storage medium and warming blanket |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008217554A (en) * | 2007-03-06 | 2008-09-18 | Matsushita Electric Ind Co Ltd | Automatic vending machine |
| CN204100420U (en) * | 2014-09-29 | 2015-01-14 | 天津艾赛尔机房设备技术有限公司 | A kind of base station air conditioner of tool self-cleaning function |
| CN104424705A (en) * | 2013-08-28 | 2015-03-18 | 富士电机株式会社 | Vending machine |
| CN205026909U (en) * | 2015-09-17 | 2016-02-10 | 广东美的制冷设备有限公司 | Air condensing units dust collector and contain its air conditioner |
| CN105485973A (en) * | 2016-01-11 | 2016-04-13 | 合肥美的电冰箱有限公司 | Velvet collecting net, refrigerator and system and method for determining when to clean velvet collecting net |
| CN206019048U (en) * | 2016-08-25 | 2017-03-15 | 四川润心琢玉科技有限公司 | A kind of refrigeration door |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5934854Y2 (en) * | 1978-10-26 | 1984-09-27 | サンデン株式会社 | Frozen/refrigerated showcase |
| JPS5649858A (en) * | 1979-09-27 | 1981-05-06 | Sanyo Electric Co | Clogging detector for condenser or condenser filter |
| JPS62782A (en) * | 1985-06-26 | 1987-01-06 | 三菱電機株式会社 | Method of detecting clogging of air filter for condenser |
| JPH06235577A (en) * | 1992-07-13 | 1994-08-23 | Nippon Kentetsu Co Ltd | Clogged filter sensing device for air-cooled condenser |
| JP3026428B2 (en) * | 1996-10-04 | 2000-03-27 | サンデン株式会社 | vending machine |
| JPH10148406A (en) * | 1996-11-20 | 1998-06-02 | Sanyo Electric Co Ltd | Condensing unit for refrigerating machine |
| JP2004044844A (en) * | 2002-07-09 | 2004-02-12 | Denso Corp | Refrigerator car air curtain |
| JP2005242705A (en) * | 2004-02-26 | 2005-09-08 | Sanden Corp | Centralized management system |
| JP3107776U (en) * | 2004-09-16 | 2005-02-17 | 株式会社ニットク | Control device for soft drink dispenser |
| JP4285402B2 (en) * | 2004-12-02 | 2009-06-24 | パナソニック株式会社 | refrigerator |
| JP2009127881A (en) * | 2007-11-20 | 2009-06-11 | Daiwa Industries Ltd | Refrigerator |
| JP5500161B2 (en) * | 2011-12-16 | 2014-05-21 | 三菱電機株式会社 | Refrigeration cycle equipment |
| US20140250925A1 (en) * | 2013-03-06 | 2014-09-11 | Esco Technologies (Asia) Pte Ltd | Predictive Failure Algorithm For Refrigeration Systems |
-
2017
- 2017-03-24 JP JP2017059383A patent/JP2018162906A/en active Pending
-
2018
- 2018-03-12 TW TW107108339A patent/TW201835702A/en unknown
- 2018-03-13 CN CN201810204086.8A patent/CN108626962A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008217554A (en) * | 2007-03-06 | 2008-09-18 | Matsushita Electric Ind Co Ltd | Automatic vending machine |
| CN104424705A (en) * | 2013-08-28 | 2015-03-18 | 富士电机株式会社 | Vending machine |
| CN204100420U (en) * | 2014-09-29 | 2015-01-14 | 天津艾赛尔机房设备技术有限公司 | A kind of base station air conditioner of tool self-cleaning function |
| CN205026909U (en) * | 2015-09-17 | 2016-02-10 | 广东美的制冷设备有限公司 | Air condensing units dust collector and contain its air conditioner |
| CN105485973A (en) * | 2016-01-11 | 2016-04-13 | 合肥美的电冰箱有限公司 | Velvet collecting net, refrigerator and system and method for determining when to clean velvet collecting net |
| CN206019048U (en) * | 2016-08-25 | 2017-03-15 | 四川润心琢玉科技有限公司 | A kind of refrigeration door |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219942A (en) * | 2018-11-26 | 2020-06-02 | 珠海格力电器股份有限公司 | Refrigerator fault prediction method and device |
| CN111288717A (en) * | 2018-12-10 | 2020-06-16 | 东芝生活电器株式会社 | Refrigerator with a door |
| CN115251665A (en) * | 2022-08-01 | 2022-11-01 | 江苏星星冷链科技有限公司 | Automatic adjust radiating mechanical control by temperature change show cupboard of condensation |
| CN115251665B (en) * | 2022-08-01 | 2024-04-12 | 江苏星星冷链科技有限公司 | Mechanical temperature control showcase capable of automatically adjusting condensation and heat dissipation |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018162906A (en) | 2018-10-18 |
| TW201835702A (en) | 2018-10-01 |
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