CN1111378C - Controller for display case - Google Patents

Abstract

To use in common a controller for showcases of plural kinds by reading a control operational sequence and a set value for a showcase of a kind indicated from a memory when the showcase of such kind is indicated by a key operation on key inputting means and carrying out control of input and output signals on the basis of the control operational sequence and the set value. An indication code is modified by pushing a feed key 14 and a return key 15 to have a detected temperature of a sensor, which corresponds to such code, indicated on a segment element 17, and after confirmation, the existing mode is returned to a normal mode by pushing the return key 15. In addition, in the case where set data stored inside is broken as by defect of memory and the like, respective indication units present flashing indication, and control by a default value is performed until resetting. Accordingly, a common controller can control showcases of different kinds, so that load on management of parts and products is reduced.

Description

Controller for display case

The present invention relates to control the open type showcase and the controller of other freezing/refrigerator display case.

At present, the used freezing/refrigerator display case of display food the position being set being divided into built-in and external according to refrigeration machine.The shape of housing parts except various showcases such as multilayer, semicircle multilayer, single-layer type are arranged, also has the refrigerator that divides by different purposes and exhibits and sells individual layer showcase etc.Therefore when having different types of machines, control the machine of the controller of this device, need to use the nonshared control unit corresponding with its pattern according to showcase.

Therefore,, must produce polytype controller, make the kind of parts and goods increase, bring great difficulty to management according to the kind of showcase in the production scene.For the user, different showcase types have different controllers in addition, and often therefore the new method of operating of study bothers very much.

In order to address the above problem, controller for display case of the present invention has the controller body; Described controller body is provided with: enter key; The input terminal of the detection signal of input pickup, this input terminal are arranged on showcase or refrigeration pusher side; Lead-out terminal to each operating member output action index signal of showcase or refrigeration machine; Be provided with in described controller body: storage in advance is about the memory as the various setting values of the benchmark of the control sequence of multiple showcase machine and control operation; Change the unit of the setting value in the described memory according to the button operation of enter key; By the button operation of enter key, under the situation of having specified the showcase machine, from described memory, read the control operation order and the setting value of this machine, and with this device that input/output signal is controlled; Be arranged on the described controller body, display operation enter key and the content of operation imported or/and described input/output signal value or/and the display board of described memory set-value.

Therefore, this controller is imported each machine as long as be connected with showcase, just can use on various showcases.

Showcase controller of the present invention can also be used for freezing/refrigerator display case and freezing/reezer system.

Here, utilize key input apparatus, the machine sign indicating number that uses an English words to constitute is given the showcase machine of appointment.Therefore the setting of machine and demonstration are very easy to.

Similarly, the standard value of the setting value of machine in the memory etc. as this machine will be stored in advance.At this moment, when being connected,, and do not import detailed setting value, just can bring into use as long as set machine with showcase.

Below, embodiments of the invention are described with reference to the accompanying drawings.

Fig. 1 is the outside drawing of controller embodiment of the present invention, and Fig. 1 (a) is a front view, and Fig. 1 (b) is a side view, and Fig. 1 (c) is a rearview.

Fig. 2 shows each the input and output terminal 2-7 allocation plan on the body that is arranged on Fig. 1.

Fig. 3 shows the key diagram of Fig. 2 display 11 structures.

As shown in Figure 1, on the epimere of the front of controller body 1, sensor input terminal 2 is set, section is provided with the lead-out terminal 3 that connects display therein, at hypomere the lead-out terminal 4 of auxiliary connection display is set, and the lead-out terminal 5 that connects centralized management is set on their right side.In addition, defrosting signal output terminal 6, controller power source box I/O terminal 7, fuse 8, label 9 similarly are set in the back respectively.Among the figure 10 is fixing appliances.

As shown in the figure, the right side disposes the sensor input terminal that connects temperature adjustment sensor 21, defrosting sensor 22, in-cabinet temperature sensor 23, environment temperature sensor 24 from the top down in order respectively.Then, each terminal of management department's output, display part I/O, secondary display part I/O in the config set.Dispose each terminal of the input of defrosting signal, illumination sign input, machinery input unusually, temperature adjustment output, defrosting output, the output of reporting to the police, power supply input from the top down in the left side.In the present embodiment, display 11 and slave display 12 were arranged with body in 1 minute, utilized holding wire separately to connect.

On the part of the right side of this display 11, set the input generic key, i.e. switch key 13, transmission key 14, enter key 15.In left part display board 16 is set, configuration illustrates each literal and 7 sections display elements 17 of coding in display board 16.

Secondly, the concrete operations and the control action of this controller are described.Machine and its control content of in this display, in the memory of the ROM of inside etc., having stored the freezing/refrigerating box of content shown in the table 1 in advance:

Table 1

		Externally positioned type				Internally-arranged type
											Multilayer		Individual layer		Multilayer		Individual layer
		Refrigeration	Freezing	Refrigeration	Freezing	Refrigeration	Freezing	Refrigeration		Freezing
											The machine sign indicating number		A	B	C	D	E	F	G		H
Sensor	S1	In the case	←	←	←	←	←	←		←
											S2	Temperature adjustment	←	←	←	The temperature defrosting	←	Temperature adjustment		←
	S3	Defrosting	←	←	←	Environment temperature	←	Defrosting		←
											S4	Environment temperature	←	←	←	Screen pack	←	←		←
	Temperature adjustment (℃)		1	-18	1	-20	1	-18		1											-20
Defrosting (℃)											5	5	5	5	5	5	5		5
		(amount) dewaters		5	3	5	3	5	3	5										3
The screen pack dirt												←	←	←	←	51	←	←			←

That is, with regard to the refrigeration machine position, externally positioned type and internally-arranged type are arranged, showcase dispose multistage or single-layer type, its purposes has refrigeration or freezing, above-mentioned various combinations its representational be 8 kinds, these 8 kinds of types are encoded with English alphabet A-H respectively.In addition, set the purposes of used temperature sensor, design temperature, the defrost interval of temperature adjustment, the design temperature that dewaters the time and detect the screen pack obstruction according to corresponding machine respectively.That is, use the selected machine of user of this controller, the tired rope input operation of saving the panel setting value just can be brought into use.Certainly, in case of necessity, the user can be according to the behaviour in service of each showcase, change setting.

Because the memory of dress is read-write in the controller, perhaps ROM self is replaceable, press defined make freezing/during refrigerator display case, be easy to the information of in the machine of the freezer casing shown in the table 1 and control content thereof, appending new freezing/refrigerator display case.This increase for the user who has new freezing/refrigerator display case, be easy to provide append the input this machine and control content software and with showcase provide the storage these softwares ROM.

Because the control action itself of the temperature inside the box of the various machines that controller had etc. control, defrosting control, alarm output, setting, temperature monitor etc. is identical with the control content in having special-purpose controller now, no longer describes herein.

Below, illustrate that the panel of this controller shows and the key input operation.At first,, after the illumination sign input stops, pushing switch key 13, just switch to the setting pattern for switching to the setting pattern from general mode.So the data display part that is made of 7 sections apparent elements 17 is shown as " ... ... " state.

Then, push switch key 13 once more, be docile and obedient preface and demonstrate literal in the display board 16.That is, only light the literal that becomes set condition in " temperature adjustment, defrost, dewater, high temperature, low temperature, DIFF, SB amount SB value ".At this moment, on 7 sections display elements 17, begin to show default value.When the setting value that change shows, depress and send key 14, enter key 15, after the increase and decrease setting value, push switch key 13, switch to other coding and determine.Like this, utilize switch key 13, both changeable demonstration sign indicating number can be confirmed the value that 7 sections display elements 17 show again, and in case of necessity, Hair Fixer send key 14, enter key 15 to come change setting.

In these setting operations, selected with set in the irrelevant coding of machine the time, show "--" by 7 sections display elements 17, set at machine, when the demonstration sign indicating number that demonstrates is " Y ", after setting machine, after depressing transmission key 14, enter key 15, depress switch key 13 again, the default value of just automatically importing this machine is as the setting value beyond the machine coding.Set and finish also to depress switch key 13 once more, just switch to general mode.When not depressing switch key 13 in for the operation of change setting, can continue the setting pattern by final key in 30 seconds, automatically return general mode afterwards, the value that show this moment reads as setting value and determines.

Under general mode, send key 14 by pushing, just switch to the temperature sensor display mode.Afterwards, depress and send key 14, enter key 15, change demonstration sign indicating number, demonstrate and this yard corresponding sensor detected temperatures by 7 sections display elements 17.Temperature is depressed enter key 15 after confirming, returns general mode.

In case operated key input be stored in inner setting value because of the reason of memory when destroyed, then extinguish each display part, the default value of this machine of input in generation is up to being controlled by default value before the setting again.

In the present embodiment, as above said, owing to the control function that has multimachine kind showcase in the controller, therefore, can be general to multimachine kind showcase.Consequently in the factory that produces multimachine kind showcase, make the controller generalization that is connected with these showcases, can enlarge the production scale of controller, reduce production costs, simultaneously, reduce the quantity of controller part, the management of parts is also easy.Even for showcase, because controller is general, also can limit the kind of the sensor that is provided with on the various showcases, therefore, the management of parts also is easy to.

For the user, even increase the showcase machine, be same type by controller, need not to change the mode of operations, therefore use easily.Moreover in the present embodiment, owing to set the machine coding that uses 1 letter by English words to constitute in the showcase machine, therefore, the machine setting operation is very simple, shows also very simple.

Also have, in advance as default value, it is very simple that user's setting operation also becomes with the representational setting value of each machine of showcase.

The controller of present embodiment, showcase machine are combined into 8 kinds, in addition, and other machines of all right assembled monolayer 2 temperature band cabinets etc.

Not necessarily, the reason that this slave display 12 is set is based on following using method to slave display 12 in showcase controller of the present invention.For example, because of slave display 12 only has the function of the display board 16 of display 11, can demonstrate elsewhere with the display board 16 of display 11 the enter key input by display 11 content of operation or/and the input/output signal value or/and the setting value of memory.In addition, as individual layer two temperature band cabinet, when setting 2 temperature bands (for example, cryogenic temperature band and refrigerated storage temperature band) on the showcase, be provided with one and constitute identical slave display 12, the setting and the demonstration of sharing each temperature band by display 11 and slave display 12 jointly with display 11.

As mentioned above, according to the present invention,, can reduce cost simultaneously even,, can reduce the management work of the parts and the parts of controller so, only produce single controller in factory because utilize the general purpose control device to control for the showcase of different machines.With speech, even increase the showcase machine, because controller is with a kind of, use or operation are very easy to the user.Owing to use the machine sign indicating number that is made of an English alphabet by the appointment of enter key input showcase machine, so the setting of machine is easy to, and shows also simple.Owing to will be preset in the standard value of the setting value of the machine in the memory as this machine, when controller connects,, needn't finish the input operation of each setting value as long as set machine, just can bring into use, therefore can improve user's ease of use.

Claims (4)

1, a kind of controller for display case is characterized in that having:

The controller body;

Described controller body is provided with:

Enter key;

The input terminal of the detection signal of input pickup, this input terminal are arranged on showcase or refrigeration pusher side;

Lead-out terminal to each operating member output action index signal of showcase or refrigeration machine;

In described controller body, be provided with:

Storage in advance is about the memory as the various setting values of the benchmark of the control sequence of multiple showcase machine and control operation;

Change the unit of the setting value in the described memory according to the button operation of enter key;

By the button operation of enter key, under the situation of having specified the showcase machine, from described memory, read the control operation order and the setting value of this machine, and with this device that input/output signal is controlled; With

Be arranged on the described controller body, display operation enter key and the content of operation imported or/and described input/output signal value or/and the display board of described memory set-value.

2, controller for display case according to claim 1 is characterized in that utilize keying in device, uses the encode showcase machine of corresponding appointment of the machine of an English words formation.

3, controller for display case according to claim 1 and 2 is characterized in that and will be stored in the standard value of the setting value of each machine in the memory etc. as this machine in advance.

4, a kind of controller that is used to control freezing/refrigerator display case is characterized in that having:

The controller body;

Described controller body is provided with:

Enter key;

The input terminal of the detection signal of input pickup, this input terminal are arranged on freezing/refrigerator display case or freezing/refrigeration pusher side;

Lead-out terminal to each operating member output action index signal of freezing/refrigerator display case or freezing/reezer system;

In described controller body, be provided with:

Storage in advance relevant multiple freezing/information of refrigerator display case machine, the standard control information of each machine of correspondence and as the memory of the various setting values of the benchmark of the control sequence of each machine and control operation;

Change the unit of the setting value in the described memory according to the button operation of enter key;

By the button operation of enter key, under the situation of having specified freezing/refrigerator display case machine, from described memory, read the control operation order and the setting value of this freezing/refrigeration machine, and with this device that input/output signal is controlled; With

Be arranged on the described controller body, display operation enter key and the content of operation imported or/and described input/output signal value or/and the display board of described memory set-value,

Described controller can multiple freezing/general in the refrigerator display case.

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