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Dish washing machine

A dishwashing machine and washing tank technology, applied in dishwashing machine/washing machine, dishwashing machine/rinsing machine parts, automatic detection under the control of dishwashing machine/rinsing machine, etc., can solve the problem of transmittance change. Poor, turbidity accuracy drops, etc.

Active Publication Date: 2012-10-31
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this state, if the dishwasher is used for a long period of time, the transmittance of light will gradually deteriorate, and the accuracy of turbidity detection by the turbidity detection unit will decrease.
Therefore, there is a problem that it is difficult to accurately and stably perform accurate turbidity judgment over a long period of time.

Method used

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Embodiment approach 1

[0020] figure 1 It is a longitudinal sectional view showing the dishwasher in Embodiment 1 of the present invention. exist figure 1 Among them, a washing tank 2 is provided inside a main body 1 of the dishwasher, and cold water or hot water is supplied into the washing tank 2 by a water supply device 3 . The water supply device 3 uses a water level sensor 4 provided in communication with the washing tank 2 to control the amount of water supplied so as to stop the operation when it reaches a predetermined water level. A water storage part 2a is provided at the bottom of the washing tank 2, and a pump 5 driven by a motor is attached to communicate with the water storage part 2a.

[0021] use figure 2 The structure and operation of the pump 5 will be described. figure 2 It is a sectional view which shows the structure of the pump of the dishwasher in Embodiment 1 of this invention. The pump 5 is composed of a pump casing 6 , an impeller 7 and a switching valve 8 . In the ...

Embodiment approach 2

[0049] Image 6 with 7 The figure which shows the convex part and the turbidity detection part of the drainage path of the dishwasher in Embodiment 2 of this invention. which is, Image 6 It is a perspective view of the turbidity detection part of the dishwasher in Embodiment 2 of this invention, Figure 7 It is a side sectional view of the turbidity detection part of the dishwasher in Embodiment 2 of this invention.

[0050] In the above-mentioned first embodiment, the substantially vertical portion 18 in the middle of the drainage path 12 was formed into a linear shape, but in this embodiment, the shape is such that the upstream vertical portion 18a on the upstream side of the discharged water flow It is provided so as to be offset in the horizontal direction from the downstream vertical portion 18b on the downstream side, and is smoothly connected to the inclined portion 18c therebetween. The pipe widths of the upstream vertical portion 18 a and the downstream vertical ...

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Abstract

A dish washing machine is configured so that a turbidity detection section for detecting information relating to the turbidity of the wash water is disposed above the level of the wash water remaining in the drainage passage when the drainage of the wash water from the dish washing machine is completed. As a result of the configuration, when the operation of the dish washing machine is completed, no water remains within the piping of the drainage passage, in which the turbidity detection section is disposed, and the inside of the piping is kept clean. This enables the turbidity of the wash water to be accurately and stably detected for years and also enables washing which corresponds to the degree of dirtiness of an object to be washed to be appropriately performed.

Description

technical field [0001] The invention relates to a tableware cleaning machine for cleaning objects to be cleaned such as tableware. Background technique [0002] A conventional dishwasher is equipped with an optical sensor for detecting the turbidity (transmittance) of washing water used for washing dishes. As an example of this dishwasher, the dishwasher of Patent Document 1 will be described. [0003] The dishwasher of Patent Document 1 includes: a washing tank for storing dishes; a washing nozzle disposed inside the washing tank; and a washing pump for supplying washing water to the washing nozzle. In this dishwasher, when washing dishes, the dishes are stored in the washing tank, and a predetermined amount of washing water is supplied into the washing tank. Then, the washing water accumulated in the lower part of the washing tank is supplied to the washing nozzle by the washing pump. The dishes accommodated in the washing tank are sprayed with washing water from the wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47L15/42
CPCA47L15/0023A47L2501/01A47L15/4297A47L15/4221A47L15/4225A47L2401/09A47L15/4223A47L15/42A47L15/46G01N21/94
Inventor 宫内隆
Owner PANASONIC CORP
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