Dry burning-resistant device for dish-washing machine

An anti-dry and dishwasher-safe technology, which is applied to parts of washing machines/rinsing and washing machines for tableware, lighting and heating equipment, fluid heaters, etc. Make sure that the water flow in the pipeline is at full load, etc.

Pending Publication Date: 2018-01-16
QINGDAO HAIER DISHWASHER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing method cannot guarantee that the water in the waterway is in a flowing state when the heater is working, nor can it ensure that the water flow in the pipeline is in a state of full load, and at the same time, it cannot ensure that the heater does not operate when the liquid flowing through the heater is in a water-vapor mixed state. Hidden dangers of partial dry heating of the heater and water boiling

Method used

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  • Dry burning-resistant device for dish-washing machine
  • Dry burning-resistant device for dish-washing machine
  • Dry burning-resistant device for dish-washing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] like Figure 1-2 As shown, a dishwasher anti-dry device, the anti-dry device is arranged in the water pump of the dishwasher, the pump casing 100 of the water pump is circular, the water pump inlet 101 is located on the side of the arc-shaped pump casing 100 of the water pump, the water pump The outlet 102 is arranged on the top of the pump casing 100 and along the tangential direction of the circular pump casing 100. The anti-dry heating device includes a magnetic induction device, a magnetic ball 202 and a display device. The magnetic induction device is a reed switch 201, and the display device is an indicator light. 203, the reed switch 201 is set on the top of the arc-shaped outer wall of the pump casing 100. When the water pump is not working, the magnetic ball 202 is located at the bottom of the pump casing 100 of the water pump, and the reed switch 201 is connected in series with the indicator light 203.

[0051] Wherein the magnetic induction device can also be...

Embodiment 2

[0054] like Figure 3-4 and Figure 8 The anti-dry device for a dishwasher is set in the water pump of the dishwasher, the pump casing 100 of the water pump is circular, and the water pump inlet 101 is located on the radial surface of the arc-shaped pump casing 100 of the water pump. The water pump outlet 102 is arranged on the top of the pump casing 100 and along the tangential direction of the circular pump casing 100. The anti-dry heating device includes an induction device, an induced part, a detection pipeline 206 and an electric heating device. The electric heating device is an electric heating device. device 204, the induction device is a magnetic induction device, the magnetic induction device is a reed switch 201, the reed switch 201 is arranged on the top of the arc-shaped outer wall of the pump casing 100, the reed switch 201 is connected in series with the electric heater 204, and the induced part is a magnetic ball 202, the electric heating device is installed at...

Embodiment 3

[0059] like Figure 5 and Figure 11 As shown, the difference between the present embodiment and the second embodiment is that the present embodiment also includes a limiting device, the limiting device is fixedly arranged in the detection pipeline 206 and is within the sensing range of the magnetic induction device, and the limiting device It is used to limit the magnetic ball 202, so that the magnetic ball 202 moves with the water flow until the limit device stops, and prevents the magnetic ball 202 from rushing out due to excessive water pressure. The plate 210 is vertically arranged and welded at the outlet of the detection pipeline 206 to prevent the magnetic ball 202 from rushing out.

[0060] Wherein, the limit device can be a circular limit baffle 210, the edge of the limit baffle 210 is fixedly connected with the inner wall of the detection pipeline 206, and water holes are arranged around the circular limit baffle 210, and the magnetic ball 202 is limited After bei...

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PUM

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Abstract

The invention belongs to the field of dish-washing machines, and specifically relates to a dry burning-resistant device for a dish-washing machine. The dish-washing machine includes a water pump and awaterway pipeline communicated with the same. The dry burning-resistant device includes an induction device and an induced part. The induced part is arranged in the water pump and/or the waterway pipeline. The induction device is corresponding to the induced part and is arranged outside the water pump and/or the waterway pipeline. The induced part can be moved with a water flow, the induced partcan be moved into the induction range of the induction device with the water flow when the water flow of the water pump or the waterway pipeline is fully loaded, and the induced part is out of the induction range of the induction device under effects of its own gravity and a reset device when the water pump or the waterway pipeline has insufficient water flow or no water flow. By arranging the induction device and the induced part in the water pump and/or the waterway pipeline, the induced part can be moved into the induction range of the induction device with the water flow and the energizingcircuit of the induction device is closed only when the water flow of the water pump and/or the waterway pipeline is fully loaded.

Description

technical field [0001] The invention belongs to the field of dishwashers, and in particular relates to a dishwasher anti-dry device. Background technique [0002] Dishwashers need to heat water during operation. Before the heater works, it is necessary to ensure that circulating water passes through the water circuit to avoid dry heating of the heater. If the heater in the dishwasher is dry, it may ignite peripheral components and cause Fire, so there is a major safety hazard in the dry heater. Currently the most commonly used processing methods are: [0003] 1) A water level switch or a water level sensor is added to the dishwasher system. After the control board detects that the water level switch or sensor is closed, it outputs an on signal to the heater. Dishwashers that use a water level switch can also connect the water level switch to the heater in series, and the heater can only be turned on after the water level switch is closed. [0004] 2) The dishwasher equipp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47L15/42F24H9/20
Inventor 刘成王华伟姜战存
Owner QINGDAO HAIER DISHWASHER
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