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Ice machine

An ice making machine and ice making water technology, applied in the directions of ice making, refrigerator, ice making, etc., can solve the problems of identification difficulty, shortened service life of screw-type ice machine, and increased consumption of electricity and water, etc.

Inactive Publication Date: 2005-10-05
HOSHIZAKI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the techniques described in Japanese Patent Laid-Open No. 61-125566 and Japanese Patent Laid-Open No. 9-303914 detect the current value and control the ice-making capacity according to the amount of change. However, the detection of the current value is easily affected by voltage fluctuations. Also, there are few normal and abnormal current values, so it is very difficult to identify them
[0008] Therefore, although the above-mentioned various situations are techniques for avoiding damage and failure of the drive motor, there is a problem that the consumption of electricity and water increases and the service life of the screw-type ice maker is shortened due to ice making more than necessary. The problem

Method used

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Effect test

Embodiment 1

[0055] Below, according to Figure 1 to Figure 5 The illustrated Example 1 illustrates the invention in detail. figure 1 It is a diagram showing the water path and refrigeration circuit diagram of the screw ice maker used in this embodiment, figure 2 is a longitudinal section view of the water supply tank, image 3 It is a side view showing the ice making mechanism part of the spiral ice maker in partial longitudinal section. Figure 4 It is a flow chart showing the operation of the first embodiment. Figure 5 It is a time chart for explaining the water supply stop time of the water supply solenoid valve.

[0056] exist figure 1 and figure 2 In the following, the water path and refrigeration circuit diagram of the spiral ice maker used in Example 1 will be described. The water path of the spiral ice machine consists of a water supply solenoid valve 2, a water supply pipe 3, a water supply tank 4, a supply pipe 6 for supplying ice-making water to the cylinder 5, a dra...

Embodiment 2

[0066] Such as Figure 6 As shown, in Embodiment 2, a temperature sensor 27 for detecting the temperature of the condenser 15 is provided in the ice maker of Embodiment 1, and the temperature sensor 27 constitutes the ice-making capacity detection device of the present invention. Since the other configurations are the same as those of the first embodiment, only the different configurations will be described. The magnitudes of the measured temperature CT1 of the condenser 15 measured by the temperature sensor 27 and a certain arbitrary reference temperature CT2 are compared. When the measured temperature CT1 measured by the temperature sensor 27 is lower than the reference temperature CT2 , the control circuit A controls the rotation speed of the fan motor 17 to be low. As a result, the condensing capacity is intentionally lowered, and excess ice production is restricted.

[0067] Therefore, according to Example 2, as Figure 7 As shown in the flow chart of (the same steps a...

Embodiment 3

[0070] Such as Figure 8 As shown, embodiment 3 is that in the ice maker of embodiment 1, pressure sensors 28 and 29 for detecting the high-pressure side pressure and low-pressure side pressure of the compressor 13 are provided, and these pressure sensors 28 and 29 constitute the ice maker of the invention. Ice capacity detection device. Since the other configurations are the same as those of the first embodiment, only the different configurations will be described. The compression ratio A1 is calculated from the high-side pressure and the low-side pressure measured by the pressure sensors 28 and 29 , and the magnitude of the compression ratio A1 is compared with an arbitrary reference value A2 . When the compression ratio A1 is smaller than the reference value A2, the control circuit A controls the rotation speed of the fan motor 17 to decrease. As a result, the condensing ability is intentionally lowered, and excessive ice production is suppressed.

[0071] That is, if ...

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Abstract

Disclosed is an ice making machine in which upon starting of ice making operation, a water level detecting switch (11) starts measurement, a water-supply-stop time (T1) being compared with a reference time (T2). When the water-supply-stop time (T1) is not longer than the reference time (T2), it is determined that the ice making machine is in an excessive-ice-making state, and control is performed so as to reduce the RPM of a fan motor (17) for cooling a condenser (15).

Description

technical field [0001] The invention relates to an ice maker, in particular to an improvement of an ice maker which controls the ice making capacity by detecting the ice making capacity of the ice making machine and adjusting the freezing capacity of a cooling circuit. Background technique [0002] Generally, the ice-making mechanism of a screw-type ice maker is composed of a drive motor (gear motor), a housing, a freezer, and screw parts, and the ice-making water supplied from the water supply tank to the cylinder installed in the freezer is constantly kept. It is stored at a certain water level, and during the work of the ice-making mechanism, ice-making is often carried out continuously. Refrigerant flows through the evaporator, and ice gradually grows on the inner wall of the ice maker cylinder. The ice is stripped by a spiral member rotated by a gear motor and sent upwards, where it is cut into small pieces by a cutter (also called a "fixed blade"). Here, the refriger...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25C1/24F25C1/14
CPCF25C2600/04F25C2600/02F25C2400/14F25C1/147F25C2700/04Y02B30/743F25B2600/111Y02B30/70F25C1/24
Inventor 黑柳正行大谷辉彦澄川英雄田中洋古川义朗陶山朗
Owner HOSHIZAKI ELECTRIC CO LTD
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