JPH06207767A - Indicating device for operating condition of ice making machine - Google Patents

Abstract

PURPOSE:To prevent the generation of trouble by indicating the operating time of an ice making machine or a part of the same, which is accumulated by an accumulating means, by an indicating means. CONSTITUTION:The operating time of an ice making machine itself or specified parts (a circulating pump 9 and the like, for example) is accumulated by an accumulating means or a timer while the operating time, accumulated by the counting of the timer, is indicated in an indicator 29 by a controller 20. Accordingly, the operating time of the ice making machine itself or specified parts can be confirmed easily upon maintenance. Further, a process, such as replacement or the like, can be taken immediately before arriving at the proper age of endurance of the machine or the parts. According to this method, the generation of trouble of the ice making machine can be prevented and a maintenance fee therefor can be inexpensive.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation status display device for displaying the status of operation of an ice making machine.

[0002]

2. Description of the Related Art Conventionally, this type of ice making machine is disclosed in, for example, JP-A-54.
As disclosed in Japanese Patent No. 4966642 (F25C1 / 00), a tiltable water tray is provided below the evaporator which defines a large number of downwardly opening ice making compartments, and the water tray closes the ice making compartment. The ice making water is sprayed from the fountain holes formed on the surface of the water tray to each ice making chamber to perform the ice making process, and hot gas is flown to the evaporator while the water tray is opened to heat the evaporator. It is configured to perform the ice-breaking process. Such tilting movement of the water tray is realized by a forward / reverse deceleration motor and a water tray position detecting switch, and the fountain / circulation of the ice making water is realized by a circulation pump.

Further, the ice making machine is also provided with a display device for displaying various kinds of information, so that various set values and the like can be displayed.

[0004]

By the way, the parts such as the circulation pump and various switches constituting the ice making machine have a service life themselves, and after the service life has passed, each part fails due to aged deterioration, There is a risk of falling into an ice-making disabled state. Such useful life can be predicted in advance by experiments before shipment. However, since the operation status of the ice making machine varies greatly depending on the user, it is extremely difficult to grasp how long various parts constituting the ice making machine are actually operated or how many times they are operated.

Therefore, conventionally, it is the actual situation that maintenance is carried out such as replacement after a part has broken down, or repair / replacement as soon as possible, and ice cannot be supplied when needed at a store or the like. However, there were inconveniences such as high costs for maintenance. The present invention has been made to solve the problems of the related art, and accurately grasps the operation time and the number of times of operation of the ice making machine or the components constituting the ice making machine and prevents the occurrence of a failure. ,
It is an object of the present invention to provide an operation status display device for an ice making machine that can reduce maintenance costs.

[0006]

According to another aspect of the present invention, there is provided an operation status display device, which is applied to an ice making machine for performing a predetermined ice making operation by cooling ice making water with a cooling device. Alternatively, it comprises an integrating means for accumulating the operating time of specific parts constituting the ice making machine, a displaying means, and a controlling means for displaying the ice making machine integrated by the accumulating means or the operating time of the parts on the displaying means. It is characterized by having done.

Further, the operating condition display device of the invention of claim 2 is applied to an ice-making machine which executes a predetermined ice-making operation by cooling the ice-making water with a cooling device. It is characterized in that it is provided with an integrating means for accumulating the number of times of operation of the parts, a display means, and a control means for displaying on the display means the number of times of operation of the parts integrated by the integrating means.

An operating condition display device for an ice making machine according to a third aspect of the present invention is provided with a storage means for storing the value accumulated by the accumulating means, and the storing means is provided when the power supply to the ice making machine is cut off. In addition to holding the integrated value, the control means displays the added value added to the integrated value held in the storage means on the display means when the energization is restarted. To do.

In the operating condition display device for an ice making machine according to a fourth aspect of the present invention, in the above, the control means sequentially displays the integrated value from the upper digit when the digit number of the integrated value exceeds the display digit of the display means. It is characterized by In the operating condition display device for an ice making machine according to the invention of claim 5, the control means displays various information of the ice making machine on the display means, and when the integrated value is displayed, the integrated value is displayed. It is characterized in that the display means is once displayed and the integrated value is subsequently displayed.

[0010]

According to the operation status display device of the ice making machine of the first aspect of the invention, the integrating means integrates the operating time of the ice making machine itself or the specific parts constituting the ice making machine, and the integrating means makes the integration. Since the operating time is displayed on the display means by the control means, it is possible to easily check the operating time of the ice making machine itself or a specific part at the time of maintenance or the like. And
By taking measures such as replacement immediately before reaching the peculiar useful life, it is possible to prevent the occurrence of malfunctions of the ice making machine and eliminate unnecessary maintenance.
Maintenance costs can be reduced.

In addition, in case of actual failure,
It is possible to grasp the useful life in actual usage conditions such as how many years it will cause a failure, and it is possible to accurately set the useful life for the next maintenance. According to the operation status display device of the ice making machine of the invention of claim 2, the integrating means integrates the number of times of operation of a specific component forming the ice making machine, and the controlling means displays the number of times of operation integrated by the integrating means. Since it is displayed by means, it is possible to easily confirm the number of times of operation of the component at the time of maintenance or the like. Then, by taking measures such as replacement immediately before reaching the number of unique operating times, it is possible to prevent damage to the ice making machine, unnecessary maintenance becomes unnecessary, and maintenance costs are reduced. Can be achieved.

In addition, in the case of actual failure,
It is possible to grasp the number of durable operations in an actual usage situation, such as how many times the failure occurs, and it is possible to set an accurate number of durable operations for the next maintenance. According to the operating condition display device of the ice making machine of the invention of claim 3, the value accumulated by the accumulating means is stored in the storing means, and
The storage means holds the integrated value even when the power supply to the ice making machine is cut off, and the control means newly adds the integrated value to the integrated value held in the storage means when the power supply is restarted. Since the value is added and displayed on the display means, it is possible to statistically grasp the operating time or the number of times of operation of the ice making machine or parts regardless of the usage state of the ice making machine.

The operating time and the number of operations usually reach a considerable number of digits, but according to the operation status display device of the ice making machine of the invention of claim 4, the number of digits of the integrated value is the number of digits displayed on the display means. Even when it exceeds the limit, the control means sequentially displays the integrated value from the upper digit, so that it becomes possible to display the number of times of operation and the number of times of operation by the display means having a small number of digits. Further, according to the operation status display device of the ice making machine of the invention of claim 5, even when various information of the ice making machine is displayed on the display means, the control means displays the integrated value when the integrated value is displayed. The display means once displays that the display mode has been entered, and subsequently displays the integrated value, so that the maintenance worker or the like can surely grasp the integrated value display without overlooking.

[0014]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is an electric circuit diagram of a control device 20 of the ice making machine I which constitutes the operation status display device of the ice making machine of the present invention, and FIG. 2 is a partially cutaway side view of the ice making machine I. The ice making machine I of the embodiment is a so-called reverse cell type ice making machine, and has a large number of downwardly opening ice making chambers 1A, and a cooler in which an evaporation pipe 2 of a cooling device is arranged on the outer surface of the upper wall. 1, and at a predetermined horizontal closing position, each ice making chamber 1A is closed from below with a sufficient margin,
Fountain hole 3 and return hole 4 corresponding to each ice making chamber 1A on the surface
A water tray 5 formed therein, a water tank 6 fixed to the water tray 5 and communicating with the return hole 4, and a water pipe 7 for feeding water in the water tank 6,
Further, a circulation pump 9 for circulating the water from the fountain hole 3 to each of the ice making chambers 1A through the distribution pipe 8, and a drive unit 11 including a forward / reverse rotatable high gear ratio reduction motor 10 for tilting and returning the water tray 5, The water level switch WLSW is activated by the sprinkler 13 that sprinkles water on the surface of the water tray 5 when the water supply solenoid valve 12 is opened, and the float 14B in the float tank 14A that communicates with the bottom of the water tank 6 to operate the water level switch WLSW. The water level detection device 14 for detecting the

The mounting plate 16 fixed to the support beam 15
A drive cam 17 having first and second arms 17A and 17B extending in mutually opposite directions is connected to the output shaft of the reduction motor 10 supported by the drive cam 17, and the end of the first arm 17A of the drive cam 17 is connected. The other end of the coil spring 18 attached to the portion is connected to the side portion of the water tray 5, and the rear portion of the water tray 5 is supported by the rotating shaft 19. Further, the ASW is switched and inverted by the second arm 17B of the drive cam 17 which rotates counterclockwise in FIG. 2 by the forward rotation of the reduction motor 10, the power supply to the reduction motor 10 is cut off, and the water tray 5 is opened to a predetermined inclination. Stop it in position,
When the deceleration motor 10 rotates in the reverse direction, the first arm 17A of the drive cam 17 that rotates clockwise in FIG. 2 switches and inverts the deceleration motor 10 so that the deceleration motor 10 is turned off and the water tray 5 is stopped at the horizontal closed position. It is a switch for detecting the position of the water tray.

The water tray position detecting switch ASW is a seesaw type actuator switch composed of an actuator portion projecting laterally from the support beam 15 and a switch portion opened and closed by the actuator portion.
The first and second arms 17A and 17B of the drive cam 17 come into contact with and press against both side surfaces of the actuator portion, so that the actuator portion is switched and inverted. Further, both the actuator portion and the switch portion have a predetermined snap action characteristic, and after being pressed to a certain position, they are switched and inverted by themselves.

Next, in the control device 20 of FIG. 1, the compressor 21 constituting the cooling device is connected in series with the relay R1, and the condenser cooling fan 22 for cooling the condenser (not shown) of the cooling device is the relay. It is connected in series with R2. The circulation pump 9 is connected in series with the relay R3, and the hot gas solenoid valve 23 for controlling the supply of hot gas (high temperature / high pressure gas refrigerant) to the evaporation pipe 2 of the cooler 1 is connected in series with the relay R7. The water supply solenoid valve 12
Is connected in series with relay R4. The deceleration motor 10
Is connected in series with the relay R5 and the switching relay R6.
This switching relay R6 is closed to the contact a side and the deceleration motor 10
Is normally rotated and switched to the contact b side to reverse the deceleration motor 10.

These relays R1 to R7 are controlled by a general-purpose microcomputer 25 as a control means. The water level switch WLSW and the water tray position detection switch ASW are connected to the input of the microcomputer 25, and an ice storage detection switch BSW that closes the contacts when a predetermined amount of ice storage in the ice storage (not shown) is detected is connected. It Further, the input of the microcomputer 25 is an ET sensor 26 for detecting the temperature of the cooler 1,
A CT sensor 31 for detecting the temperature of the condenser is connected, and further, a mode switch 32 and a feed switch 2 are connected.
8 is connected.

A monitor 27 and a display unit 29 as a display unit are connected to the output of the microcomputer 25, and the display unit 29 is composed of a 7-segment 2-digit LED. The microcomputer 25 is also connected to a memory 30 made up of an EEPROM and serving as a storage means. The memory 30 does not lose stored data even when the ice making machine I is de-energized and retains it. To continue.

The operation will be described with the above configuration. First, the water tray 5 is at a predetermined horizontal closing position where the ice making chamber 1A is closed as shown by the solid line in FIG. 2, and when the power is turned on, the microcomputer 25 closes the relay R1 and starts the compressor 21. Further, the condenser cooling fan 22 is operated, and further the circulation pump 9 is operated to circulate the water in the water tank 6 from the fountain holes 3 to the respective ice making chambers 1A, and at the same time, the water supply solenoid valve 12 is opened. The water supply process is started by spraying water from 13 onto the surface of the water tray 5 and mainly supplying water to the water tank 6 through the return hole 4.

When a predetermined amount of water is supplied to the water tank 6 and the water level switch WLSW detects and closes the predetermined water level, the relay R4 is opened and the water supply solenoid valve 12 is closed to end the water supply process and the ice making process. Move to. By the ice making process, ice is gradually generated in the ice making chamber 1A of the cooler 1, and when a predetermined ice making time determined by the ET sensor 26 and the CT sensor 31 has elapsed, the microcomputer 2
Numeral 5 opens the relays R2 and R3, stops the condenser cooling fan 22 and the circulation pump 9 to end the ice making process, shifts to the ice removing process, closes the relays R5 and R7, and makes the relay R6 contact a. And the deceleration motor 10 is normally rotated. This causes the water tray 5 to start tilting,
The hot gas solenoid valve 23 is opened to circulate the hot gas through the evaporation pipe 2 to heat the cooler 1 to remove the frozen ice from the ice making chamber 1A. Further, the drive cam 17 rotates counterclockwise in FIG. 2 due to the normal rotation of the reduction motor 10.

When the water tray 5 tilts to a predetermined tilt open position as shown by the broken line in FIG.
Arm 17B pushes the actuator portion of the water dish position detection switch ASW to invert the switch portion to the closed state, the microcomputer 25 opens the relay R5, stops the deceleration motor 10, and tilts the water tray 5. To stop. Then, the microcomputer 25 detects that the temperature of the cooler 1 taken in by the ET sensor 26 is, for example, +9.
It is judged whether or not the temperature is higher than the deicing end temperature such as ℃, and if it is higher, the relay R5 is closed, the relay R6 is closed to the contact b, the deceleration motor 10 is reversed, and the water tray 5 is returned to the upper position. Start moving. The drive cam 17 rotates clockwise in FIG. 2 as the deceleration motor 10 rotates in the reverse direction.

When the water tray 5 returns to the predetermined horizontal closed position as shown by the solid line in FIG.
The first arm 17A of the water pan position detection switch ASW
Since the actuator part of the switch is pressed to invert the switch part to the open state, the microcomputer 25 opens the relays R5 and R7, closes the relay R6 to the contact a, closes the hot gas solenoid valve 23, and reduces the speed reduction motor. 10 is stopped to stop the return movement of the water tray 5, and the ice removal process is completed. When a predetermined amount of ice is stored in an ice storage (not shown), the microcomputer 25 detects the opening of the ice storage detection switch BSW, opens the relays R1 and R7, and stops the operation of the compressor 21. And shift to the ice storage process. When the amount of ice in the ice storage decreases and the ice storage detection switch BSW closes, the microcomputer 25 restarts the ice making process from the water supply process.

The above is the ice making operation by the microcomputer 25. The microcomputer 25 uses the integration flow chart shown in FIG. 3 to operate the ice making machine I and the number of times the water tray position detecting switch ASW is operated or the circulation pump 9 is operated. We are accumulating time. That is, the microcomputer 25 starts from step S
In step S2, all are reset, and in step S2, the timer T1 as an integrating means which the microcomputer 25 has as its function is counted. This timer T1 is for accumulating the operating time of the ice making machine I.

Next, at step S3, it is judged whether or not the water tray position detecting switch ASW is operated, or whether or not the circulation pump 9 is operating, and if it is operating or is operating. Advances to step S4 to count a timer T2 as an integrating means which the microcomputer 25 also has as its function. This timer T
Reference numeral 2 is for integrating the number of operations of the water tray position detection switch ASW or the operating time of the circulation pump 9.

The integrated values accumulated by the timers T1 and T2 are transferred from the microcomputer 25 to the memory 30 one by one.
It is stored and held in another storage area within. In particular, the memory 30 continues to hold the integrated value even when the power supply to the ice making machine I is cut off, for example, when the ice making machine I is moved. Therefore, when the power supply to the microcomputer 25 is restarted, The newly integrated value is added to the integrated value stored in the memory 30. Therefore, the memory 30 holds a statistical value of the operating time of the ice making machine I, the number of times the water tray position detection switch ASW is operated, or the operating time of the circulation pump 9.

Next, the microcomputer 25 determines in step S5 whether the operating condition display mode has been set by the mode changeover switch 32 and the integrated value display has been selected by the feed switch 28. If so, the process proceeds to step S7. Then, the display flag is set, and if not selected, the display flag is reset in step S6. Next, FIGS. 4 and 5 show a display flowchart of the microcomputer 25. In the following description, the operating time of the ice making machine I, the number of operations of the water tray position detection switch ASW, or the operating time of the circulation pump 9 stored in the memory 30 are collectively referred to as an integrated value. The following display control may be applied to all of these values, or may be selectively applied.

The microcomputer 25 determines whether or not the display flag is set at step S8 after the power is turned on, and if not, another display is made at step S9. That is, when the operation status display mode is not set by the mode changeover switch 32 but the normal display mode is set, the stroke display and the alarm display having the contents as shown in FIG. When the mode change switch 32 is set to the operation status display mode, the feed switch 28
The various operating conditions of the ice making machine I having the contents shown in FIG. 7 are displayed on the display unit 29 in order from the upper stage by the operation of. That is, the ET sensor temperature is displayed first, and the CT switch temperature is displayed next by pressing the feed switch 28 once.

Then, the mode change switch 32 is set to the operation status display mode, and the feed switch 28 is used.
When the integrated value display is selected by pressing 8 times, the display flag is set in step S7 of FIG. 3, so the microcomputer 25 sets steps S8 to S10 of FIG.
First, the display 29 displays nn. This nn means that the integrated value display has been selected (when all of the above-mentioned various values are to be displayed, nn is the operating time of the ice making machine I, and in addition to FIG. For example, no (the number of times the water dish position detection switch ASW has been operated), np (the operating time of the circulation pump 9), etc. are displayed, and corresponding values are displayed thereafter. This nn display is continued for 2 seconds by accumulating the 2-second counter which the microcomputer 25 has as its function in step S11 and step S12 and waiting for its completion, so that the maintenance worker will display the integrated value from now on. Can be confirmed that
You will be able to grasp the information without failing to see the subsequent display.

Then, after nn display is performed for 2 seconds,
The two-second counter is reset in step S13, and the display on the display unit 29 is erased in step S14. Next, in steps S15 and S16, the microcomputer 25 integrates the one-second counter which has its function, and waits for the end to maintain the erased state for one second. When the erased state for 1 second ends, the microcomputer 25 resets the 1-second counter in step S17, and displays the sixth digit and fifth digit of the integrated value held in the memory 30 on the display unit 29 in step S18. .

The operating time of the ice making machine I is about 50,000 hours in 5 to 6 years, and the number of operations of the water dish position detecting switch ASW is an integrated value of 100,000 times or more. In order to display all of them, a 6-digit display is required, but since the display 29 is a 2-digit display here, the microcomputer 25 first sets the highest 6 in step S18.
Display the digit and the fifth digit. This display (6th and 5th digits)
Is continued for 2 seconds by accumulating a 2 second counter in steps S19 and S20 and waiting for its completion.

After the 6th and 5th digits are displayed for 2 seconds, the 2 second counter is reset in step S21 and the display on the display 29 is erased in step S22. Next, in steps S23 and S24, the 1-second counter is added up, and by waiting for the end, the erased state is maintained for 1 second. When the erased state for 1 second is completed, the microcomputer 25 resets the 1-second counter in step S25, and displays the fourth and third digits of the integrated value held in the memory 30 in step S26 on the display 29. indicate.

This display (4th digit and 3rd digit) is similarly continued for 2 seconds by integrating the 2 second counter in steps S27 and S28 and waiting for the end thereof. Then, after the display of the fourth digit and the third digit is performed for 2 seconds, the 2 second counter is reset in step S29, and step S3 is performed.
At 0, the display on the display 29 is erased. Next, step S3
In 1 and step S32, the 1 second counter is added up, and the erased state is maintained for 1 second by waiting for the end. When the erased state for 1 second ends, the microcomputer 25 resets the 1-second counter in step S33, and displays the second digit and the first digit of the integrated value stored in the memory 30 in step S34 on the display 29. indicate.

This display (the second digit and the first digit) is similarly continued for 2 seconds by integrating the 2 second counter in steps S35 and S36 and waiting for the completion thereof. Then, after the second digit and the first digit are displayed for 2 seconds, the 2 second counter is reset in step S37, and step S3 is performed.
At 8, the display on the display 29 is erased. Next, step S3
In step 9 and step S40, the microcomputer 25 accumulates a 3-second counter as its function, and waits for its completion to maintain the erased state for 3 seconds. When the erased state for 3 seconds is completed, the microcomputer 25 resets the 3 second counter in step S41, and then in step S8.
Return to.

That is, for example, a water tray position detecting switch AS
Assuming that the number of W operations is “175200”, the microcomputer 25 first displays “n” on the display 29.
“N” is displayed for 2 seconds, then the display is erased for 1 second, then “17” is displayed for 2 seconds, the display is erased for 1 second again, then “52” is displayed for 2 seconds, and again for 1 second. After the display is erased, "00" is displayed for 2 seconds.

As described above, the microcomputer 25 sequentially displays the integrated value from the upper digit on the display unit 29. Therefore, even when the number of digits of the integrated value exceeds the number displayed on the display unit 29, the number of digits is small. It can be displayed by the display 29. The maintenance operator operates the mode changeover switch 32 and the feed switch 28 at the time of checking the ice making machine I to display the above-mentioned display, and the operation time of the ice making machine I,
If the number of operations of the water tray position detection switch ASW or the operating time of the circulation pump 9 is confirmed, and the integrated value thereof reaches the previously known useful time or just before the number of useful operations, Replace and repair them. In addition, if the product actually breaks down, check the accumulated value at that time to check the service life under actual usage conditions,
Alternatively, the number of durable operations can be known, which can be useful for the next maintenance.

The various times and times and the types of parts (specific parts) shown in the embodiment are not limited to those described above, and may be appropriately selected according to the purpose. In particular, the so-called reverse cell type ice maker is adopted in the embodiment, but the present invention is also effective for, for example, an auger type ice maker, in which case the operating time of the auger motor and the like are integrated and displayed. You can do it. Further, in the embodiment, the operating time of the ice making machine is the energizing time to the ice making machine, but the operating time of the compressor may be the operating time of the ice making machine, for example.

[0038]

As described in detail above, according to the invention of claim 1, the operating means integrates the operating time of the ice-making machine itself or the specific parts constituting the ice-making machine, and the operating time is integrated by this integrating means. Since the operating time is displayed on the display means by the control means, it is possible to easily check the operating time of the ice making machine itself or a specific part at the time of maintenance or the like. Then, by taking measures such as replacement immediately before reaching the peculiar useful life, it is possible to prevent the occurrence of malfunction of the ice making machine, unnecessary maintenance becomes unnecessary, and maintenance cost can be reduced. It is possible to achieve this.

In addition, in case of actual failure,
It is also possible to grasp the useful life in the actual usage condition such as how many years it will cause a failure, and it becomes possible to set the correct useful life for the next maintenance. According to the second aspect of the present invention, the integration means accumulates the number of operations of a specific component forming the ice making machine, and the control means displays the number of operations integrated by the integration means on the display means. It is possible to easily confirm the number of times the parts have been operated. Then, by taking measures such as replacement immediately before reaching the number of unique operating times, it is possible to prevent damage to the ice making machine, unnecessary maintenance becomes unnecessary, and maintenance costs are reduced. Can be achieved.

In addition, in case of actual failure,
It is possible to grasp the number of durable operations in an actual usage situation, such as how many times the failure occurs, and it is possible to set an accurate number of durable operations for the next maintenance. Further, according to the invention of claim 3, the value integrated by the integrating means is stored in the memory means, and the memory means holds the integrated value even when the power supply to the ice making machine is cut off, and the control is performed. When the energization is resumed, the means adds the value accumulated by the accumulating means to the integrated value held in the storage means and displays the sum on the display means. It becomes possible to statistically grasp the operating time or the number of operations of the parts.

Further, according to the invention of claim 4, even when the number of digits of the integrated value exceeds the display digit of the display means, the control means successively displays the integrated value from the upper digit, so that the number of digits is small. The display means can display the number of operations and the number of operations. Furthermore, according to the invention of claim 5, even when various information of the ice making machine is displayed on the display means, the control means is in a mode of displaying the integrated value when displaying the integrated value. Is temporarily displayed on the display means and then the integrated value is subsequently displayed, so that the maintenance worker can certainly grasp the display of the integrated value without overlooking.

[Brief description of drawings]

FIG. 1 is an electric circuit diagram of a control device for an ice making machine according to the present invention.

FIG. 2 is a partially cutaway side view of the ice making machine.

FIG. 3 is a flowchart showing a program of a microcomputer.

FIG. 4 is a flowchart showing a program of a microcomputer.

FIG. 5 is a flowchart showing a program of a microcomputer.

FIG. 6 is a diagram showing display contents of a display device in a normal display mode.

FIG. 7 is a diagram showing display contents of a display device in a driving status display mode.

[Explanation of symbols]

 ASW Water tray position detection switch I Ice maker 1 Cooler 2 Evaporation pipe 5 Water tray 9 Circulation pump 20 Control device 25 Microcomputer 28 Feed switch 29 Indicator 30 Memory

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hideyuki Katayanagi 2-18, Keihan Hon-dori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Masuo Oku 2-chome, Keihan-hondori, Moriguchi-shi, Osaka Sanyo Denki Within the corporation

Claims (5)

[Claims] 1. An ice making machine for executing a predetermined ice making operation by cooling the ice making water with a cooling device, and an integrating means for integrating the operating time of the ice making machine or a specific component constituting the ice making machine, and a display. An operating condition display device for an ice maker, comprising: means and a control means for displaying the operating time of the ice maker or parts accumulated by the accumulating means on the display means. 2. An ice making machine for performing a predetermined ice making operation by cooling ice making water with a cooling device, an integrating means for integrating the number of times of operation of specific parts constituting the ice making machine, a display means, and An operating condition display device for an ice making machine, comprising: a control means for displaying the number of times of operation of the component integrated by the integration means on the display means. 3. A storage means for storing the value accumulated by the accumulating means, wherein the memory means holds the integrated value even when the power supply to the ice making machine is cut off, and the control means The ice making device according to claim 1 or 2, wherein when the energization is restarted, the integrated value held in the storage means is added to the integrated value and displayed on the display means. Machine operation status display device. 4. The control means, when the number of digits of the value integrated by the integrating means exceeds the display digit of the display means, sequentially displays the integrated value from the upper digit. ,
The operation status display device for the ice making machine according to claim 2 or 3. 5. The control means displays various information relating to the ice making machine on the display means, and when the value integrated by the integrating means is displayed, the control means is in a mode for displaying the integrated value. The operation status display device for an ice making machine according to claim 1, claim 2, claim 3 or claim 4, wherein the integrated value is displayed once by a display means and subsequently the integrated value is displayed.