JPH0894225A - Ice-making apparatus - Google Patents

Abstract

PURPOSE: To provide an ice-making apparatus in which the possibility of the water being exposed to air when it is in the feeding channel is reduced, putrefaction of the water and emission of malodor therefrom are prevented, and the ice produced is of good quality. CONSTITUTION: A tubular pipe joint 44 is provided on the suction side of a pump 6. By virtue of a constitution featuring connection of the pipe joint 44 with another pipe joint 33 at the time that a feedwater tank 7 is in place in a refrigerating chamber 5 and the use of a switch 14 which closes or opens a circuit according as the feedwater tank 7 is set or removed the water is drawn by suction directly from the feedwater tank 7 and fed to an ice-making vessel 2 though pipes 8, 9. It does not occur for the water in the pipe 8 or the pipe 9 to leak out or collect locally even when the feedwater tank 7 is pulled out or put in place so that the possibility of the water coming in contact with air in the channel from the feedwater tank 7 to the icemaking vessel 2 can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice making device incorporated in a refrigerator or the like.

[0002]

2. Description of the Related Art In recent years, an ice making machine is often used by incorporating it into a refrigerator. As this type of ice making device, for example, the configuration disclosed in Japanese Utility Model Publication No. 51-3082 is known.

A conventional ice making device will be described below.
As shown in FIG. 10, the ice tray 71, the reversing device 72, the pump 73, the measuring tank 74, the water supply tank 75, and the pipe 7
6, the ice tray 71 and the reversing device 72 are arranged in the freezing compartment of the refrigerator, and the others are arranged in the refrigerating compartment.

The reversing device 72 has a built-in gear train,
The ice tray 71 that freezes the water inside is reversed, and the ice tray 71 is twisted to remove ice.

The measuring tank 74 is composed of a water tank which is divided into a measuring chamber 77 and a water storage chamber 78, and a partition wall 79 for partitioning the both is provided with a small hole.
When the water level drops, the water slowly flows from the water storage chamber 78. The upper surface of the measuring tank 74 is open to the outside.

Since the pump 73 composed of the motor section 80 and the pump section 81 is a centrifugal pump and has no self-priming property, the pump section 81 of the pump 73 is directly inserted into the measuring chamber 77.

The water supply tank 75 is a closed tank body 8
2 is provided with a lid 84 provided with an opening / closing valve 83.

The operation of the ice making device constructed as above will be described below. When water is filled in the water supply tank 75 and is placed on the measuring tank 74 with the lid 84 facing downward, a part of the on-off valve 83 becomes a convex bottom 85 of the water storage chamber 78 of the water supply tank 75. The valve is brought into contact with the valve to open the water, and the water in the water supply tank 75 falls into the measuring tank 74, and the water storage chamber 78
After that, the measuring chamber 77 is filled with water. Then, the water is pumped up by the pump 73 inserted in the measuring chamber 77, and is supplied to the ice tray 71 through the pipe 76.

Since a centrifugal pump is used as the pump 73, the pump portion 81 of the pump 73 is placed over the measuring tank 74.
Only have to be inserted into the weighing tank 74.
In addition, the replenishment of water to the measuring tank 74 is performed by the water supply tank 75.
Since the measurement tank 74 is configured to drop water from above, the upper surface of the measuring tank 74 is inevitably exposed to the air.

In addition, the water supply to the ice tray 71 is not always performed, and depending on the ice consumption, it may take a considerable period of time.
Water may not be supplied to the ice tray 71.

Therefore, while water is not supplied to the ice tray 71, the water in the measuring tank 74 is not replaced at all, and dust or the like floating in the refrigerating chamber during this time is not measured.
No. 4 falls on the water surface, and dust and the like in the water rots over a long period of time. Alternatively, the gas of the off-flavor component in the refrigerator may dissolve into water from the surface of the measuring tank 74 over a long period of time, and the ice produced may give off an off-flavor.

[0012]

As described above, the conventional structure has a problem that the water in the measuring tank 74 is spoiled or has an offensive odor, and the quality of the produced ice is poor.

The present invention solves the above-mentioned problems of the prior art by preventing the decomposition of water in the water supply route and the generation of offensive odors.
It is an object of the present invention to provide an ice making device capable of producing high quality ice.

[0014]

To achieve this object, an ice making device of the present invention comprises a water supply tank, a pump whose suction side is connected to the inside of the water supply tank, a frame for holding pipes for connecting them, and a water supply system. Nozzle-like pipe joint member (A) arranged at the tip of a discharge pipe communicating with the inside of the tank
A tubular pipe joint member (B) disposed on the suction side of the pump, a pressing member that presses the water supply tank provided on the frame in the detaching direction, and a switch that opens and closes in conjunction with the pressing member. When the switch is opened at the time of normal rotation operation when supplying water to the ice tray and at the stop before entering the reverse rotation operation, the pump continues to perform normal rotation operation for a fixed time, and then the switch during normal rotation operation for a fixed time. When the pump is closed, the pump is reversely rotated for a certain period of time after being temporarily stopped, and when the switch is opened when the pump is reversely rotating, the pump is normally rotated for a certain period of time after being temporarily stopped, and the switch is normally rotated for a certain period of time. When is closed, the pump is reversely rotated for a certain period of time after being temporarily stopped, and the pump is operated only once when the switch is opened / closed during the normal rotation operation and the reverse rotation operation.

If the switch is opened at the time of stoppage of the pump during the forward rotation operation and before the reverse rotation operation, the pump is continuously rotated for a fixed time, and then the switch is closed for a fixed time during the normal rotation operation. Then, the pump is reversely rotated for a certain period of time after being temporarily stopped, and when the switch is opened when the pump is reversely rotating, the pump is normally rotated for a certain period of time after being temporarily stopped, and the switch is closed for a certain period of normal rotation. Then, after the suspension, the pump is reversely rotated for a certain period of time, and the pump is repeatedly operated when the switch is continuously opened and closed during the forward and reverse operations.

[0016]

In this structure, since the suction side of the pump is connected to the inside of the water supply tank by the pipe, the water is directly sucked out from the water supply tank, is supplied to the ice making tray through the pipe, and the ice making is performed from the water supply tank. There is less opportunity for water to come in contact with air while reaching the plate. Also, since the pump is rotated in reverse for a certain period of time after supplying water to the ice tray, the water remaining in the piping will be collected in the water supply tank through the pump, and when water is supplied to the ice tray. When the switch is opened during the forward rotation operation and at the stop before the reverse rotation operation is started, the pump is continuously rotated for a fixed time, and when the switch is closed during the fixed rotation operation, the pump is temporarily operated. Reverse rotation operation for a fixed time after stop, if the switch is opened during reverse rotation operation of the pump, the pump is forward-rotated for a fixed time after a pause, and if the switch is closed for forward rotation for a fixed time, the pump is temporarily stopped. By rotating the pump in reverse for a certain period of time, the water tank can be pulled out or inserted from the frame during short rotation during normal rotation and during stop before entering reverse rotation and during reverse rotation. Ri when returned, and thus to prevent the water in the water supply channel spilling.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, an ice making device arranged in a refrigerator includes an ice making tray 2, an inverting device 3 and an ice storage container 4 arranged in a freezing chamber 1 in an upper stage and a refrigerating chamber 5 in a lower stage. It comprises a pump 6, a water supply tank 7, and a pipe 8 connecting the water supply tank 7 and the pump 6, and a pipe 9 connecting the pump 6 and the ice tray 2. The pipe 8 is continuously and airtightly connected without a gap, and the pipe 9 is configured to inject water into the ice tray 2 from a nozzle 10 opened on the upper surface of the ice tray 2.

The pump 6, the water supply tank 7 and the pipes 8 and 9 are
It is held by the frame 11.

The pressing lever 12 arranged near the pump 6 is attached to the frame 11 by a shaft 13 and can swing about the shaft 13.

The pressing lever 1 is located in the depth direction of the pressing lever 12.
A switch 14 that opens and closes in conjunction with the switch 2 is provided.

The ice tray 2 is a tray for freezing the water inside, and the reversing device 3 is a device having a gear train built therein, which functions to invert the ice tray 2 to remove ice, and the ice storage container 4
Is a container under the ice tray 2 for storing ice dropped from the ice tray 2.

As shown in FIGS. 2 to 4, the water supply tank 7 includes a tank body 15 made of a resin such as acryl nitrostyrene, a lid body 16 also formed of a resin such as acryl nitrostyrene, and a housing. The filter case 18 is composed of the portion 17 and the funnel-shaped member 18a and their accessories.

Tank main body 1 which is a container with an open upper surface
Around the opening 19 of No. 5, a small flange 20 is formed.

On the other hand, the bottom surface of the tank body 15 has a convex shape, and over the length of about one third of the bottom surface,
A slope 21 is formed toward the opening 19.

The lid 16 is a plate-like member having a shape matching the opening 19 of the tank body 15, and a bag-like portion 22 is formed around the periphery of the lid 16 so as to fit the opening end of the tank body 15. . A packing (not shown) is arranged inside the bag-shaped portion 22.

The four protrusions 23 formed on the side surface of the lid body 16 are arranged in pairs at a position of two, and two protrusions 23 are arranged at opposite positions. A hole (not shown) is formed. A plate-shaped lock member 24 is rotatably attached to the protrusion 23, and a convex portion 25 that fits into the hole of the protrusion 23 is provided on the side surface. Also,
Each lock member 24 is provided with two engaging claws 26. When the lid 16 is put on the opening 19 of the tank body 15, a bag-like portion 22 provided around the lid 16 is provided.
Fits into the open end of the tank body 15. The engaging claw 26 of the lock member 24 is attached to the flange 20 of the tank body 15.
The lid 16 is attached to the tank body 15 so as not to come off because it engages with the bottom surface of the.

The lid 16 is provided with a hole 27 for pouring water, and a cap 28 is attached to the hole 27. Further, the lid 16 is formed with a recess 29 used as a handle when the water supply tank 7 is pulled out. Further, the discharge pipe 30 is attached to a hole (not shown) provided in the central portion of the lid body 16. The discharge pipe 30 has a long tubular shape and is integrally provided with a suction pipe portion 31 whose lower end reaches the bottom of the tank body 15 and an air vent portion 32.

A nozzle-like pipe joint member (A) 33 is provided above the suction pipe portion 31 so as to project upward from the lid body 16 and extend horizontally in the projecting portion. An annular projection 34 is formed on the outer peripheral surface of the pipe joint member (A) 33. The tip of the discharge pipe 30 has a pipe joint member (A).
An inclined surface 35 that is lowered in the axial direction of 33 is formed.

The air vent pipe portion 32 has an extremely short tubular shape and has a structure in which the upper surface of the tank body 15 communicates with the outside.

A filter 36 is provided inside the tank body 15.
A filter case 18 having a built-in filter is provided.

As shown in FIGS. 5 to 7, the resin frame 11 is fixed in the refrigerating chamber 5 and is divided into a water tank mounting portion 37 and a pump arranging portion 38.

The water supply tank mounting portion 37 is composed of a bottom plate 39 and a peripheral wall 40 having a low height, and an end portion in the longitudinal direction of the bottom plate 39 is raised to form a discharge pipe housing portion 41. When viewed from above, the discharge pipe housing portion 41 has a trapezoidal shape, and the end portion side of the water supply tank mounting portion 37 has a wide width and is tapered and narrowed toward the center. Further, an opening 42 is formed on the tip end side of the discharge pipe storage portion 41, in other words, on the center side of the water supply tank mounting portion 37.

Around the opening 42, a pipe joint member (B) 44 and an engaging claw 45 are provided via a support base 43. The pipe joint member (B) 44 is formed by integrally mounting a tubular member 47 on a flange-shaped base portion 46, and has a tubular shape as a whole.

The seal member 48 inserted inside the pipe joint member (B) 44 is made of an elastic material such as rubber or resin, and contacts the inner wall of the tubular member 47. It has a cylindrical surface and a flat surface that abuts on the base portion 46. The lips 49, 50 project from the cylindrical surface and the flat surface, respectively. That is, the seal member 48 performs a sealing action by the two lips 49 and 50, and has a so-called double seal function.

The engaging claw 45 has a claw 5 at the tip of the rod member 51.
2 is provided. The engaging claw 45 is swingably supported by the shaft 53, and the spring 54 abuts on the rod-shaped member 51 of the engaging claw 45.
2 is biased to move downward.

The tip of the pressing lever 12 projects downward from an opening provided in the bottom plate 39 of the frame 11, and the pressing lever 12 is pressed by the spring 55 in the direction away from the pump disposing portion 38.

Reference numeral 56 in the drawing denotes a bottom plate of the water supply tank 7. As shown in FIG. 8, the control device operates the control circuit 57 based on the opening / closing of the switch 14 to drive the drive circuit 58.
The motor 59 of the pump 6 is driven or stopped by normal rotation or reverse rotation.

The operation of the ice making device constructed as above will be described below. Before using the ice making device, first fill the water supply tank 7 with water. When water is added to the water supply tank 7, the cap 28 is removed and water is poured into the water supply tank 7 through the hole 27.

When the inside of the water supply tank 7 is dirty, the engaging claw 26 of the lock member 24 is attached to the flange 2 of the tank body 15.
The tank body 15 can be washed by removing the lid body 16 from the tank body 15 and removing the entire lid body 16 from the tank body 15. In the water supply tank 7, the storage part 17 of the filter case 18 is attached to the L-shaped mating groove (not shown) by the funnel-shaped member 18.
Since it is performed by engaging the mating protrusion (not shown) of a, the filter case 18 can be disassembled by slightly rotating the storage portion 17, and the inside can be easily cleaned. You can

After pouring water into the water supply tank 7, the water supply tank 7 is attached to the frame 11. The water supply tank 7 is mounted by holding the water supply tank 7 horizontally and inserting the water supply tank 7 by pushing it between the bottom plate 39 of the water supply tank mounting portion 37 of the frame 11 and the bottom plate 56 of the water supply tank 7.

Here, when the water supply tank 7 is mounted, the discharge pipe 30 advances inward from the wide opening of the discharge pipe storage portion 41 along the taper, and the discharge pipe 30 is guided by the side surface of the discharge pipe storage portion 41. Since it is held, the lateral movement of the water supply tank 7 is restricted. The discharge pipe 30 is connected to the discharge pipe storage portion 41.
To the opening 42 at the tip of the.

When the water supply tank 7 is pushed in, the inclined surface 35 of the discharge pipe 30 is provided at the tip of the discharge pipe 30 by pushing up the engaging claw 45 as shown by the chain double-dashed line in FIG. The nozzle-shaped pipe joint member (A) 33 is inserted into the pipe joint member (B) 44.

The pipe joint member (A) 33 is a pipe joint member (B).
When completely inserted into 44, the engaging claw 45 is lowered by the force of the spring 54 and engages with the side surface portion of the discharge pipe 30. As a result, the pipe joint member (A) 33 is held so as not to come off from the pipe joint member (B) 44.

The pipe joint member (A) 33 is a pipe joint member (B).
As for the internal state when it is completely inserted into 44, the tip end portion of the pipe joint member (A) 33 comes into contact with the two lips 49 and 50 of the seal member 48 to ensure complete water tightness. .

Further, the annular projection 34 of the pipe joint member (A) 33 contacts the inner wall of the pipe joint member (B) 44 to improve the watertightness.

The mounting work of the water supply tank 7 is performed by the frame 11
Since the pressing lever 12 is provided on the press lever 12, and the pressing lever 12 acts in the direction of pushing out the water supply tank 7, it is a work in which some resistance is felt. However, when the water supply tank 7 is completely installed, the engaging claw 45 engages with the vertical surface of the discharge pipe 30, and the force of the pressing lever 12 is supported by the engaging claw 45, so that the user's hand does not. The resistance felt is significantly reduced. Therefore, the user can know whether or not the water supply tank 7 is completely attached by the presence or absence of resistance felt by the hand.

Next, the automatic water supply will be described with reference to the flowchart shown in FIG. When the mounting of the water supply tank 7 is completed, the timer 1 is started in step 1, and subsequently, the motor 59 of the pump 6 starts forward rotation in step 2.

Since the pump 6 of this embodiment is a gear pump and has a self-priming property, water is directly sucked up from the water supply tank 7 by the rotation of the motor 59. That is, water enters the pump 6 from the suction pipe portion 31 inserted in the water supply tank 7 through the pipe joint members (A) 33, (B) 44. Then, water is discharged from the pump 6 through the pipe 9 and the nozzle 10.

When the timer 1 expires, the pump 6 is switched to reverse rotation, and the discharge of water from the nozzle 10 is stopped. At this time, the ice tray 2 is filled with water.

As described above, in this embodiment, the amount of water discharged to the ice tray 2 is controlled by controlling the rotation speed of the motor 59 with the timer 1. Since the pump 6 used in this embodiment is a gear pump, a discharge water amount that is approximately proportional to the total number of rotations of the motor 59 can be obtained. Therefore,
By setting the rotation time of the motor 59 constant, a desired amount of water can be obtained.

When the inner volume of the filter case 18 is equal to the required water supply amount to the ice tray 2, the water level in the filter case 18 temporarily drops after the pump 6 has supplied the required amount of water. Since the pump 6 sucks in air and does not supply water any more, more accurate control of the amount of water supplied can be performed.

In FIGS. 9 and 10, when the expiration of the timer 1 is confirmed in step 4, the timer 2 is checked in step 6.
Is paused. The set time of the timer 2 is shorter than that of the timer 1 described above. Then, when the timer 3 starts to start, the motor 59 is switched and reversely rotated in step 10. The set time of the timer 3 is shorter than that of the timer 1 and longer than that of the timer 2.

As described above, the reason why the motor 59 is stopped for a certain period of time is to protect the motor 59, and the reason why the motor 59 is rotated in the reverse direction only for a certain period of time is to allow the water remaining in the pipe 9 to pass through the pump 6. This is because the water is collected in the water supply tank 7.

Step 3 or step 7 shown in FIG.
When the switch 14 is opened, that is, when the water supply tank 7 is pulled out, the process immediately proceeds to step 14 and the motor 59 is rotated forward for a shorter period than the set time of the timer 1. When the switch 14 is closed in step 15, that is, when the water supply tank 7 is inserted, the process immediately proceeds to step 17 and the motor 59
And then reverse the rotation. Further, when the switch 14 is opened in step 11, that is, when the water supply tank 7 is pulled out, the process immediately proceeds to step 21, the motor 59 is temporarily stopped, and then the normal rotation is made shorter than the set time of the timer 1. When the switch 14 is closed in step 22, that is, when the water supply tank 7 is inserted, the process immediately proceeds to step 17, where the motor 59 is temporarily stopped and then rotated in the reverse direction. After each normal and reverse rotation, timers 1, 2, 3 are set in steps 16, 20, 23.
Confirm the expiration of. When the expiration of the timers 1, 2, 3 is confirmed in steps 16, 20, 23, the rotation of the motor 59 is stopped in step 13. As a result, when the water supply tank 7 is pulled out or inserted during normal rotation, temporary stop, and reverse rotation of the pump 6, the water in the pump 6, the pipes 8 and 9 is discharged to the ice tray 2 and the water supply tank 7 side. Water spills can be prevented. If the switch 14 does not open in steps 3, 7, and 11, the completion of the water supply timer 3 is confirmed in step 12. When the expiration of the timer 3 is confirmed in step 12, the rotation of the motor 59 is stopped in step 13 and the series of water supply steps is ended.

When the switch 14 is opened in step 3 or step 7 shown in FIG. 10, that is, when the water supply tank 7 is pulled out, the process immediately proceeds to step 14 and the motor 59 is rotated forward for a shorter period than that set by the timer 1. . In step 15, the switch 14 is closed, that is, the water tank 7
When is inserted, immediately go to step 17
After pausing 9, rotate backward. When the switch 14 is opened in step 20, that is, when the water supply tank 7 is pulled out, the process immediately proceeds to step 14 to repeat the forward rotation of the motor 59 shorter than the set time of the timer 1.

Further, when the switch 14 is opened in step 11, that is, when the water supply tank 7 is pulled out, the motor 59 is immediately stopped at step 22 and then rotated forward for a shorter period than that set by the timer 1.

When the switch 14 is closed in step 23, that is, the water supply tank 7 is inserted, step 17 is started immediately.
The motor 59 is temporarily stopped and then rotated in the reverse direction.

When the switch 14 is opened in step 20, that is, the water supply tank 7 is pulled out, step 1 is started immediately.
4, the motor 59 is repeatedly rotated in the normal direction for a shorter time than the set time of the timer 1. After each forward and reverse rotation by repetition, in steps 16, 21, and 24, timer 1,
Check the expiration of a few. When the expiration of the timers 1, 2, 3 is confirmed in steps 16, 21, 24, step 13
Then, the rotation of the motor 59 is stopped.

As a result, when the water supply tank 7 is pulled out or inserted during normal rotation, temporary stop, and reverse rotation of the pump 6, the water in the pump 6 and the pipes 8 and 9 is made into the ice tray 2,
It is possible to prevent spillage of water discharged to the water supply tank 7 side.

When the switch 14 is not opened in steps 3, 7, and 11, the completion of the water supply timer 3 is confirmed in step 12. Expiration of timer 3 is step 1
If it is confirmed in step 2, the rotation of the motor 59 is stopped in step 13, and a series of water supply process ends.

After that, as in the conventional ice making device, the water in the ice making plate 2 is frozen, the ice making plate 2 is inverted by the reversing device 3 to remove the ice, and the ice is dropped into the ice storage container 5.

Then, the water supply process is repeated again. Here, as described in the conventional example, there is a considerable time interval from one water supply to the next water supply, but in this embodiment, water does not come into contact with air during this water supply interval.

That is, there is no need to fill water in a container with an open upper part like the conventional measuring tank,
Water is pumped out of the water supply tank 7 when needed. In addition, when the supply of various amounts of water to the ice tray 2 is completed, the pipe 8,
Even the water remaining in 9 is collected in the water supply tank 7. Further, since the water supply tank 7 is sealed except for the air vent pipe portion 32, there is no concern that dust or the like will enter the inside.

As described above, according to this embodiment, the pump 6
, Which is self-priming, uses the rotation of the pump 6 to suck water directly from the water tank 7,
Since water is supplied to the ice tray 2 through 9, there is little chance that the water will come into contact with the air from the water supply tank 7 to the ice tray 2. Therefore, there is an effect that the water can be always kept in a clean state without being contaminated with dust or the like or mixed with an offensive odor gas component. As a result, the ice made by the ice making apparatus of this embodiment has good quality.

Further, the water supply tank 7 can be mounted very easily by connecting the pipe joint member (A) 33 and the pipe joint member (B) 44.

Further, since the frame 11 is provided with the pressing lever 12 for pressing the water supply tank 7 in the detaching direction, it is possible to confirm the mounting of the water supply tank 7 with a sense of moderation and prevent the water supply tank 7 from being erroneously mounted. You can further,
A switch 14 that opens and closes in conjunction with the pressing lever 12 is provided to detect attachment / detachment of the water supply tank 7, and the water supply tank 7 is pulled out from the frame 11 during normal rotation operation, temporary stop, and forward rotation operation. Immediately after the motor 59 is inserted into the frame 11, the motor 59 continues the normal rotation operation, performs the reverse rotation operation after the temporary stop, and further performs the reverse rotation operation after the temporary stop, which has the effect of preventing water spillage.

In the present embodiment, the gear pump adopted as the type of the pump 6 is the most preferable because it has a simple structure and few failures, but the type of the pump is not limited to the gear pump, but other self-priming pumps. Can be adopted. As a concrete example, it is possible to adopt a vane pump, an axial piston pump, a diaphragm pump, or the like.

[0069]

As is apparent from the above description, according to the present invention, a frame for holding a water supply tank, a pump, and pipes connecting them, and a nozzle provided at the tip of a discharge pipe communicating with the inside of the water supply tank. -Shaped pipe joint member (A), a tubular pipe joint member (B) arranged on the suction side of the pump, a pressing member for pressing the water supply tank provided in the frame in the detaching direction, and an interlocking operation with the pressing member. It has a switch that opens and closes, and while the pump is supplying water to the ice tray, the switch opens and closes when the motor is rotating forward, pause, and reverse,
Forward rotation continues, forward rotation after pausing, reverse rotation after pausing, and it operates only once for opening and closing.In addition, the switch opens and closes when the motor rotates forward, pauses and reverses. When this happens, normal rotation continues, normal rotation after a pause, reverse rotation after a pause, and operation that repeats opening and closing, eliminating water pools in the water supply path and causing water spoilage and an offensive odor. It is possible to realize an excellent ice making device capable of producing high quality ice by preventing the above.

[Brief description of drawings]

FIG. 1A is a schematic configuration diagram of an ice making device according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view of a main part of the ice making device.

FIG. 2 is a sectional view of a water supply tank of the ice making device.

FIG. 3 is an exploded perspective view of the water supply tank.

FIG. 4 is a sectional view showing a configuration of a lid portion of the water supply tank.

FIG. 5 is a perspective view of an essential part of the ice making device.

FIG. 6 is a cross-sectional view showing a combined state of the water supply tank and the frame of the ice making device.

7 is an enlarged cross-sectional view of the main part of FIG.

FIG. 8 is a schematic configuration diagram of a control device of the ice making device.

FIG. 9 is a flowchart showing the operation of the ice making device.

FIG. 10 is a flowchart showing the operation of the ice making device.

FIG. 11 is a schematic configuration diagram of a conventional ice making device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Freezing room 2 Ice tray 5 Refrigerating room 6 Pump 7 Water tank 8, 9 Piping 11 Frame 12 Pressing lever (pressing member) 14 Switch 33 Pipe joint member (A) 44 Pipe joint member (B) 45 Engaging claw (locking) Element)

Claims (2)

[Claims] 1. A pump and a water tank which are detachably mounted in a refrigerating chamber, an ice tray disposed in a freezing chamber,
A pipe through which water that combines these flows, a frame that holds the pump, the water supply tank, and the pipe, and a nozzle-like pipe joint member that is arranged at the tip of a discharge pipe that communicates with the inside of the water supply tank ( A), a tubular pipe joint member (B) arranged on the suction side of the pump, a locking member provided on either the frame or the pipe joint member (B), and A pressing member for pressing the water tank in the detaching direction and a switch for opening and closing in conjunction with the pressing member are provided, and when the switch is opened at the stop before the forward rotation operation and before the reverse rotation operation, the switch is continuously opened. When the switch is closed during the forward rotation operation for a certain period of time, and then the switch is closed during the predetermined rotation period, the pump is reversely rotated for a certain period of time after the suspension, and the switch is operated when the pump is in the reverse rotation operation. When the pump is opened, the pump is temporarily rotated for a fixed period of time, and when the switch is closed when the switch is closed for a certain period of time, the pump is rotated for a fixed period of time, and the pump is rotated for a certain period of time. An ice making device, wherein the pump is operated only once when the switch is opened and closed. 2. The operation of a pump including a switch that opens and closes in conjunction with the pressing member according to claim 1, wherein the switch is opened when the pump is stopped during forward rotation operation and before reverse rotation operation. The pump continues to rotate forward for a certain period of time, and then the switch closes during the period of forward rotating for a certain period of time. Then, the pump is temporarily rotated for a certain period of time after a temporary stop, and when the switch is closed during a certain period of normal rotation operation, the pump is rotated for a certain period of time after a reverse rotation, and the switch is rotated during forward rotation and reverse rotation. An ice making device characterized in that the pump is repeatedly operated when the opening and closing of is continued.