JPH09269169A - Ice machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To press a user to perform a repair during a failure by operating an alarming means when the full water level is detected over the prescribed time, and to continue the ice-making as much as possible if ice-making is possible by providing a water level detecting device to detect that a water storage tank to store water for ice-making is filled. SOLUTION: In an auger type ice machine to continuously produce ice pieces in which an ice-making part 1 is connected to the refrigerating cycle through a refrigerant piping, a judgment is made whether a low water level switch 23 is turned ON or not when a water feed valve WV2 is closed during the ice-making operation, and if the switch is turned ON, the water feed valve WV2 is opened to count a first counter. Then, another judgment is made whether or not the prescribed time is elapsed for the first counter, and if NO, a second counter is counted, and a judgment is made whether or not one hour is elapsed, and if YES, an alarm is generated. When the prescribed time is elapsed for the first counter, and the low water level switch 23 is turned ON, an alarm is generated, and the water feed valve WV2 is closed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auger-type ice making machine for continuously producing ice chips (chip ice).

[0002]

2. Description of the Related Art Conventionally, as shown in Japanese Utility Model Publication No. 4-52621 (F25C1 / 04), this type of ice making machine has an ice making section provided with an evaporator connected to a refrigeration system, and an ice making section provided in the ice making section. In an automatic ice making machine equipped with an ice making water supply system for supplying ice making water, a device for separating the ice generated in the ice making part, and a water level detection device for detecting the water level of the ice making water storage part in the ice making water supply system There is disclosed an automatic ice-making machine, which is provided with a protection device for stopping the ice-making operation when the water level in the ice-making water storage unit does not drop below a predetermined water level within a predetermined time after the start of ice-making. .

The predetermined water level of this automatic ice making machine is set between the water level at the start of ice making and the water level at the completion of ice making.

[0004]

The prior art described above is
Since the water level detector detects the water level at the start of ice making, that is, the water level between full water and the water level at the completion of ice making, that is, the low water level, if the water level detector itself fails, it is possible to make ice even though ice can be made. Will stop. Here, since it is the most problematic for the store side to be unable to produce ice, especially in the hot season of summer, it is a problem that the ice cannot be produced only by the failure of the water level detection device.

The present invention has been made in order to solve the above-mentioned conventional technical problems. When the water level detecting device of the ice making machine fails, an alarm is issued to prompt the user and the ice making machine can be made. Provide an ice-making machine whose purpose is to continue ice-making as much as possible.

[0006]

In order to supply the ice making water to the ice making machine, the ice making machine according to the invention of claim 1 is provided with a water storage tank for storing the ice making water, and is provided in this water storage tank to detect fullness of water. (EN) Provided are a water level detection device and an ice-making machine which, when full water is detected for a predetermined time or longer, issues an alarm by an alarm means to continue ice-making operation.

If the detection of full water continues, water leakage from the water supply valve for controlling the water supply from the tap water is the cause, so an alarm can be issued to prompt the user for repair or replacement of parts. However, since ice making continues, ice can be made. Further, in the ice making machine of the invention of claim 2, a water storage tank for storing the ice making water, and a water level detection device provided in the water storage tank for detecting full water and low water level in order to supply the ice making water to the ice making machine. Provided is an ice making machine provided with a control device that stops operation and stops ice making until full water is detected when low water level is detected and full water is not detected after a predetermined time has elapsed.

In this case, there is a possibility that the water is cut off or the full-water detector is out of order, so the ice making is stopped until the full-water is detected again. Further, in the ice making machine according to the invention of claim 3, a water storage tank for storing the ice making water, and a water level detection device provided in the water storage tank for detecting the full water level and the low water level for supplying the ice making water to the ice making machine. Provided is an ice making machine provided with a timer for performing a water supply operation after detecting a low water level when only full water cannot be detected.

If only full water can not be detected, it means that the full water detection device is out of order. Therefore, after the low water level is detected, the water supply control is performed by the timer.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a vertical sectional side view of an auger type ice making machine IM of the present invention, FIG. 2 is a circuit diagram of the auger type ice making machine IM of the present invention, and FIG. 3 is a flowchart of the present invention. The auger type ice making machine IM is provided with an ice storage configured in an insulated box and stores the ice made in this ice storage. It is used not only as an ice making machine but also in vending machines and the like. It

This auger type ice making machine IM has an ice making section 1 provided with a cooler 2 for making ice, and a cooler 2 of this ice making section 1.
In addition, the condenser 3, the compressor 4, the expansion valve 5, and the dehydrator 6 that constitute the refrigeration cycle are connected by a refrigerant pipe. Reference numeral 7 denotes a condenser cooling blower for cooling the condenser 3. Further, in order to supply water to the ice making unit 1, a water storage tank 9 that is connected to the water pipe 8 through the water supply valve WV2 and stores tap water is provided. The water storage tank 9 has an overflow pipe 10 Is connected and the full level switch 22 is
And a low water level switch 23 are provided.

Further, the water stored in the water storage tank 9 is introduced into the ice making section 1 by the water supply pipe 12, and unnecessary water is drained by the drain pipe 13. The drain pipe 13 is connected to the overflow pipe 10 via a drain valve WV1. In the ice making unit 1, an auger 16 is concentrically inserted into a stainless steel cooling cylinder 15 whose inner wall has a smooth cylindrical inner surface, and a pipe-shaped cooler 2 is spirally formed on an outer wall of the cooling cylinder 15. It is configured by tightly winding around. Also,
Solder is injected into the gap between the cooling cylinder 15 and the cooler 2 for the purpose of coupling them and improving the heat transfer performance.

The lower part of the auger 16 is a lower bearing 17, and the upper part of the auger 16 is an upper bearing 1 which constitutes an ice compression path.
8 is pivotally supported. In addition, the ice compressed by the upper bearing 18 has the ice lead-out portion 1 provided on the upper portion thereof.
It is led out to the ice storage (not shown) from 9 (shooter).
Further, to the lower part of the cooling cylinder 15, a drive device 20 including an auger motor 45 for rotationally driving the auger 16 is connected via a speed reducer 21.

Next, a circuit diagram will be described below with reference to FIG. K is a control board to which a limit sensor 30, a condenser sensor 31 that detects the temperature of the condenser, a cooler sensor 32 that detects the temperature of the cooler, and an ice storage sensor 33 are connected. ing. In addition, the control board K includes sensors 30, 3
In addition to 1, 32, 33, an operation board 35, a display board 36, a high pressure switch 37, the full water level switch 22 and a low water level switch 23 are connected.

Reference numeral 38 denotes an operation switch, which is an auger type ice making machine I.
The operation of M is started. The operation switch 38 is connected in series with a compressor relay 40 for turning on and off the compressor motor 39 of the compressor 4, a starting capacitor 41 and an operating capacitor 42, a compressor motor starting relay 43, and a compressor motor overload relay 44. ing.

Further, the compressor motor starting relay 43
And the compressor motor overload relay 44 are connected to the control board K. Also,
On the control board K, a relay R4 connected to the auger motor 45 and the operating capacitor 46, a condensing fan motor 45, and a compressor relay RL.
A relay R3 connected to the drain valve WV1, a relay R2 connected to the drain valve WV1, and a relay R1 connected to the water supply valve WV2. The compressor relay RL is for turning the compressor relay 40 ON and OFF.
Reference numeral 7 is an overload relay of the auger motor 45.

Further, the control board K is provided with integrating means for measuring and integrating the energization time to the auger motor 45. Further, the operation board 35 is provided with a mode switch 48, a reset switch 49, a feed switch 50, a drain switch 51, and a drain lamp 52, respectively.

Further, the display board 36 is provided with an inspection lamp 53 and a stop lamp 54 as an alarm means, and has a structure capable of negative display, that is, negative display. The alarm means may be a buzzer or the like other than the inspection lamp 53.
In the above structure, the operation of the present invention will be described below with reference to the flowchart of FIG.

First, it is judged whether or not the water supply valve WV2 is open (step S1), and when the water supply valve WV2 is closed (N), it is judged whether or not the low water level switch 23 is ON (step S2). Here, if the low water level switch 23 is ON (Y), the water supply valve WV2 is opened (step S3), and the first
The counter is counted (step S4). When the water supply valve WV2 is open (Y) in step S1, the process directly proceeds to step S3.

Next, it is judged whether or not the first counter has passed a predetermined time (step S5), and it has not passed (N).
In this case, it is determined whether the full water switch 22 is ON (step S6). Here, if the full water switch 22 is not ON (N), the water supply valve WV2 continues to be opened, and if the full water switch 22 is ON (Y), the water supply valve WV2 is closed (step S7).

In step S2, the low water level switch 2
When 3 is not ON (N), it is determined whether the full water switch 22 is ON (step S8). Here, when the full water switch 22 is not ON (N), the process proceeds to step S7,
When the full water switch 22 is ON (Y), the second counter is counted (step S9), and it is determined whether one hour has passed (step S10).

If 1 hour has not passed (N), the process directly proceeds to step S7, and if 1 hour has passed (Y),
An alarm is issued (step S11), the second counter is cleared (step S12), and the process proceeds to step S7. If the first counter has passed the predetermined time in step S5 (Y), it is determined whether the low water level switch 23 is OFF (step S13). Here, when the low water level switch 23 is not OFF, that is, ON (Y), an alarm is issued (step S14), the first counter is cleared (step S15), the energization is stopped for 30 minutes, and the water supply valve is activated. WV2 is closed (step S16). Then return to the start.

If the low water level switch 23 is OFF in step S13 (Y), an alarm is issued (step S17) and the first counter is cleared (step S1).
8) Then, the water supply valve WV2 is closed (step S19). Then return to the start. That is, the ice making machine I according to the invention of claim 1
In order to supply the ice making water to the ice making machine IM, M stores a water storage tank 9 for storing the ice making water, a water level detection device 22 provided in the water storage tank 9 for detecting full water, and detects full water for a predetermined time or more. In this case, an alarm is issued by the alarm means 53,
To provide an ice making machine IM for continuing the ice making operation.

If the detection of full water continues, a water leak from the water supply valve WV2 for controlling the water supply from the tap water is a cause, so an alarm can be issued to prompt the user for repair or replacement of parts. However, since ice making continues, ice can be made. The ice making machine IM of the invention of claim 2 is
In order to supply the ice making water to the ice making machine IM, a water storage tank 9 for storing the ice making water and a water storage tank 9 provided in the water storage tank 9,
Water level detection devices 22 and 23 for detecting full and low water levels,
(EN) Provided is an ice making machine provided with a control device for stopping operation and stopping ice making until full water is detected when low water level is detected and full water is not detected after a lapse of a predetermined time.

In this case, since there is a possibility that the water is cut off or the full water detector is out of order, the ice making is stopped until the full water is detected again. Further, the ice making machine IM of the invention of claim 3 is the ice making machine I.
In order to supply the ice making water to M, a water storage tank 9 for storing the ice making water, water level detection devices 22 and 23 provided in the water storage tank 9 for detecting the full water level and the low water level, and when only full water detection is not possible, (EN) An ice making machine provided with a timer for performing a water supply operation after detecting a water level.

If only full water cannot be detected, it means that the full water detector 22 is out of order. Therefore, after the low water level is detected, the water supply is controlled by the timer.

[0027]

As described above in detail, according to the first aspect of the invention, the water for ice making is supplied to the ice making machine, and the water storage tank for storing the water for ice making and the water storage tank provided in the water storage tank to detect fullness of water. (EN) Provided are a water level detection device and an ice-making machine which, when full water is detected for a predetermined time or longer, issues an alarm by an alarm means to continue ice-making operation.

When the detection of full water continues, water leakage from the water supply valve for controlling the water supply from the tap water is the cause, so an alarm can be issued to prompt the user to repair or replace parts. However, since ice making continues, ice can be made. Therefore, if the water level detector of the ice maker fails,
An alarm can be issued to prompt the user, and if possible, the ice making can be continued.

Further, according to the second aspect of the present invention, since the ice making water is supplied to the ice making machine, a water storage tank for storing the ice making water and a water level detection provided in the water storage tank for detecting full water and low water level (EN) An ice making machine provided with a device and a control device that stops operation and stops ice making until full water is detected when a low water level is detected and a predetermined time has not passed and full water is not detected.

In this case, since there is a possibility that the water is cut off or the full water detector is broken, the ice making is stopped until the full water is detected again. Therefore, if the water level detector of the ice maker fails,
An alarm can be issued to prompt the user, and if possible, the ice making can be continued. Further, according to the invention of claim 3, since the ice making water is supplied to the ice making machine,
A water storage tank for storing ice making water, and a water level detection device provided in the water storage tank for detecting full water level and low water level,
An ice maker provided with a timer for supplying water after detecting a low water level when only full water cannot be detected.

When only full water detection is not possible, the water full detection device has a failure, and therefore the water supply control is performed by the timer after the low water level is detected. Therefore, when the water level detection device of the ice maker fails, an alarm is issued to prompt the user, and if the ice can be made, the ice making can be continued as much as possible.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of an auger type ice making machine of the present invention.

FIG. 2 is a circuit diagram of the auger type ice making machine of the present invention.

FIG. 3 is a flowchart of the auger type ice making machine of the present invention.

[Explanation of symbols]

 IM Ogre type ice machine WV2 Water supply valve 9 Water storage tank 22 Full water switch 23 Low water level switch 53 Alarm means

Claims (3)

[Claims] 1. A water storage tank for storing ice making water for supplying ice making water to an ice making machine, a water level detection device provided in the water storage tank for detecting full water, and when full water is detected for a predetermined time or more, An ice-making machine characterized in that an alarm is issued by an alarm means and the ice-making operation is continued. 2. A water storage tank for storing the ice making water for supplying the ice making water to the ice making machine, a water level detection device provided in the water storage tank for detecting full water and a low water level, and detecting a low water level to determine a predetermined level. An ice maker, which is provided with a control device that stops the operation when the full water is not detected after a lapse of time and stops the ice making until the full water is detected. 3. A water storage tank for storing ice making water for supplying ice making water to an ice making machine, a water level detection device provided in the water storage tank for detecting full water and low water level, and when only full water detection is not possible, An ice machine equipped with a timer that performs a water supply operation after detecting a low water level.