JPH0554975U - Refrigerator ice making equipment - Google Patents

Abstract

(57) [Summary] [Purpose] Regarding the ice storage amount detection operation of the ice making device of the refrigerator,
While leveling the ice blocks piled up in the stocker,
Detects when the ice storage is full. [Structure] One end of the rotating shaft of the ice tray is directly connected to the drive motor of the ice tray drive unit, and the other end is pivotally supported on the side wall of the opposing ice making chamber. A stepping motor is provided below the ice tray drive unit within a certain angle range. An ice storage detection lever that horizontally reciprocates is provided, and a flap that is inclined downward is provided on the ice storage detection lever, and the ice storage detection lever is reciprocated several times before and after the rotation of the ice tray to flatten the pile of ice. It is also characterized by detecting whether the ice storage is full.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to an ice making device of a refrigerator, and more particularly to an ice storage amount detecting operation of the ice making device.

[0002]

[Prior Art]

 Conventionally, an automatic ice-making device in a refrigerator has a water supply tank stored in a predetermined place in a refrigerating compartment, and a fixed amount of stored water is supplied to a water supply tank from a water supply pump provided in the ice-cooling compartment. It is guided to an ice tray, cooled with cold air, and the fact that it is frozen is detected by a temperature sensor installed in the ice tray.The ice tray is inverted by a motor and the ice tray is twisted to drop ice into the stocker provided below. Perform ice-breaking operation, and lower the ice storage detection lever to detect the amount of ice storage in the stocker before and after the ice tray reversing operation as shown in Fig. 4. When the ice is full, stop the ice tray rotation and supply water. The water supply from the pump is stopped to prevent ice from overflowing from the stocker. However, the falling of ice from the ice tray is repeated at the same place, piles up in the stocker, and the ice storage detection lever stops descending at the top of the pile to detect the amount of ice storage in the stocker, Although there is still plenty of room, it is judged that it is full and ice production is stopped, causing problems when a large amount of ice is needed.

[0003]

[Problems to be solved by the device]

 The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to provide a mechanism for leveling ice dropped from an ice tray so that a large amount of ice can be stored in a stocker.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the structure for detecting the detection operation of the ice storage detection lever by horizontal reciprocating motion within a certain angle range is adopted. A flap that is inclined downward is formed on one side so that the upper surface of the ice stored in the stocker is smoothed when the ice storage detection lever reciprocates.

[0005]

[Action]

 According to the above configuration, by horizontally reciprocating the ice storage detection lever within a certain angle range in the vicinity of the upper end of the stocker before and after the ice tray is turned over, the ice piled up by the flap of the ice storage detection lever is piled up. When the stocker is full at the same time as the top is broken, the flap of the ice storage detection lever is blocked by the ice block and does not rotate to a predetermined angle and stops, and this signal stops the reversing operation of the ice tray. I try to finish the ice making.

[0006]

【Example】

 Embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing the configuration of the present invention, which is viewed obliquely from below. The ice tray drive unit 1 is fixed to one side wall of an upper portion of an ice making chamber (not shown) provided in the freezing chamber. An ice tray 3 having a rotary shaft 2 is arranged between the ice tray drive unit 1 and a side wall facing the ice tray drive unit, and one end of the rotary shaft 2 is directly connected to a drive motor (not shown) of the ice tray drive unit 1. The other end is rotatably supported on the opposite side wall, and a stepping motor (not shown) is arranged below the ice tray drive unit 1. The ice storage detection lever 4 is directly connected to the motor shaft 7 to form a fixed angle. It is designed to reciprocate horizontally within the range (about 90 °). Below the ice making chamber, a stocker 5 for receiving and storing ice blocks falling from the ice tray 3 is arranged in close proximity. FIG. 2 is a side view as seen from the direction of arrow A. The ice tray 3 is provided with a rotary shaft 2 at the center in the longitudinal direction, is directly connected to the drive motor of the ice tray drive unit 1, and is manufactured by a temperature sensor 6 fixed to the lower portion of the ice tray 3. When the completion of ice is detected, it is rotated 180 ° and hit against a stopper (not shown) provided on the opposite side wall to twist the ice tray 3 to separate the ice block from the ice tray 3 and drop it into the stocker 5 for storage. I am trying. A stepping motor is attached to one end of the lower portion of the ice tray drive unit, an ice storage detecting lever 4 is horizontally attached to the motor shaft 7, and a flap 8 inclined downward to one side is attached to the tip end of the ice storage detecting lever 4. The flap 8 is formed so as to horizontally reciprocate close to the upper edge of the stocker 5.

FIG. 3 is a flow chart showing the details of the present invention. When water is poured into the ice tray 3 and ice making is completed (21) (22), the temperature sensor 6 fixed to the ice tray 3 detects the temperature of the ice tray 3. When the temperature reaches a predetermined temperature (-10 ° C, for example), a signal is sent to the control unit (23), and the control unit drives the stepping motor to move the ice storage detection lever 4 within a certain angle range (about 90 °). Reciprocate several times (24). When the ice storage detection lever 4 reciprocates a predetermined number of times (3 times) without stopping (25), the control unit drives the drive motor of the ice tray drive unit 1 to separate the ice block from the ice tray 3 to the stocker 5. Drop it (26), reverse it to return the ice tray 3 to its original posture (27), and then drive the stepping motor to move the ice storage detection lever 4 back and forth several times within a fixed angle range (about 90 °). Then, the top of the pile of ice cubes is leveled with the flap 8 of the ice storage detection lever 4 (28) (29). When this series of operations is repeated and the stocker 5 becomes almost full, the horizontal reciprocating motion of the ice storage detection lever 4 is blocked by the accumulated ice blocks and stopped, and the rotation of the stepping motor is stopped (30), and the control unit receives this signal. Is used to stop the drive motor (31). When the ice stock in the stocker is used and the stop of the ice storage detection lever 4 is released, the ice storage detection lever 4 returns to the start position and the ice making is restarted.

[0008]

[Effect of the device]

 As described above, in the present invention, by repeating horizontal reciprocating movement of the ice storage detection lever several times before and after the reversing operation of the ice tray during the automatic ice making operation, the ice stock piled up in the stocker is smoothed and the stocker is filled up. When the ice storage condition is reached, the ice storage detection lever is stopped to stop the reversing operation of the ice tray to prevent the ice blocks from overflowing from the stocker and falling out, and a large amount of ice blocks can be stored in the stocker.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part showing a configuration of the present invention.

FIG. 2 is a side view of the same as seen from an arrow A.

FIG. 3 is a flowchart showing details of the present invention.

FIG. 4 is a main part perspective view showing a conventional configuration.

[Explanation of symbols]

 1 Ice tray drive unit 2 Rotating shaft 3 Ice tray 4 Ice storage detection lever 5 Stocker 6 Temperature sensor 7 Motor shaft 8 Flap

Claims (2)

[Scope of utility model registration request] 1. A fixed amount of water is supplied to an ice tray in a freezing room to make ice, and completion of ice making is detected by a temperature sensor attached to the ice tray, and the ice tray is inverted to store ice in a stocker for storage. In an ice making device of a refrigerator in which the ice storage amount is detected by the detection operation of the ice storage detection lever to control ice making, the detection operation of the ice storage detection lever is configured to be detected by horizontal reciprocating motion within a certain angle range, and An ice making device for a refrigerator, characterized in that the ice making device is configured to be horizontally reciprocated a plurality of times before and after being inverted. 2. A flap inclined downward to one side of the ice storage detecting lever is formed so that the upper surface of the ice storage inside the stocker is smoothed when the ice storage detecting lever reciprocates. The ice making device of the refrigerator according to claim 1.