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refrigerator

A technology for refrigerators and water supply tanks, which is applied to household refrigerators, ice making, and ice making, etc., can solve problems such as weight sensor judgment, changes in the size and number of ices, and unusable refrigerators, so as to achieve stable water supply and prevent size and the effect of the difference in the number of

Active Publication Date: 2019-06-18
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the structure in which the driving time of the water supply pump is changed according to the number of times of water supply, the premise is that the water supply tank is filled with water. Without this premise, the amount of water supplied to the ice tray varies each time. The size and number of ice formed will become unstable
In addition, as in Patent Document 1, when the driving time of the water supply pump is adjusted according to the water level of the water supply tank, even at the same water level, in addition to the difference in the diameter of the water supply path, the output of the motor and the Due to the influence of the difference in impedance value, there is a problem that the amount of water supplied by each product is unstable
In addition, the refrigerator in Patent Document 2 cannot use the detection value of the weight sensor to judge whether to perform ice-making operation, and still suffers from the problem of changing the size and number of ice formed due to the state of the water volume in the water supply tank.

Method used

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Embodiment approach 1

[0049] figure 1 It is a front view which shows the state which removed the door of each compartment of the refrigerator in Embodiment 1 of this invention. figure 2 It is a front view which shows the state which closed the door of each compartment of the refrigerator in Embodiment 1 of this invention. image 3 Yes means along figure 2 A schematic cross-sectional view of the side of the water supply tank in the cross section of the side of the refrigerator. Figure 4 Yes means figure 2 A schematic cross-sectional view of the structure of the automatic ice maker included in the refrigerator. Figure 5 Is to use Figure 4 An explanatory diagram of the structure where the weight detection unit detects the water in the water supply tank. Image 6 Yes figure 2 The control block diagram of the refrigerator. based on Figure 1 ~ Figure 6 The whole structure of the refrigerator of this Embodiment 1 is demonstrated.

[0050] Such as figure 1 As shown, the refrigerator 100 includes a refri...

Embodiment approach 2

[0129] Figure 21 It is a schematic diagram which shows the component structure of the periphery of the weight detection part of the refrigerator in Embodiment 2 of this invention. The refrigerator 100 of the aforementioned Embodiment 1 adopts a structure in which the weight detection portion 60 is pasted on the base surface 80a of the box base portion 80 formed of resin or the like. Therefore, due to the difference in the thickness and hardness of the bottom surface 80a, the detection accuracy of the weight detection section 60 cannot be sufficiently ensured, and it may become difficult to detect the weight M in some cases. In addition, it is also assumed that it is not easy to replace the weight detection unit 60 during maintenance.

[0130] For this reason, the refrigerator of this Embodiment 2 is comprised so that the replacement|exchange of a weight detection part may become easy even if the detection accuracy of a weight detection part improves. The same reference numerals...

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Abstract

This refrigerator comprises a control unit that obtains a detection value given by a weight detection unit and controls driving of a water supply pump. The control unit calculates a water supply stop threshold, by using the detection value given by the weight detection unit before water is supplied and a set value according to an amount of water supplied to an ice-making tray, and also drives the water supply pump. The control unit stops the driving of the water supply pump when the detection value given by the weight detection unit reaches the water supply stop threshold.

Description

Technical field [0001] The invention relates to a refrigerator with an automatic ice making function. Background technique [0002] Conventionally, a refrigerator with an automatic ice making function maintains a water supply tank that stores water for supplying water to the ice making tray. In addition, such a refrigerator includes a water supply pump that pumps up water from a water supply tank and a motor that drives the water supply pump for automatic ice making. That is, in the case of automatic ice making, the refrigerator uses the power of the water supply pump and the motor to deliver water from the water supply tank to the ice making tray. [0003] Generally, when the driving time of the water supply pump is set to be constant, if the amount of water in the water supply tank decreases, the amount of water supplied to the ice tray also decreases. Therefore, in the conventional refrigerator, in order to stabilize the amount of water supplied to the ice tray, the driving ti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D11/02F25C1/24F25D29/00
CPCF25C1/24
Inventor 铃木和贵冈部诚
Owner MITSUBISHI ELECTRIC CORP