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Outlet water control method of food processor

A technology for food processing machines and water outlet control, applied in beverage preparation devices, household appliances, applications, etc., can solve problems such as false alarms, short warm-up time, and failure of water flow detection by flow meters

Active Publication Date: 2019-10-08
JOYOUNG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to ensure that hot water can be produced in time, the heating pipe will be preheated first. After preheating to a certain extent, water will be pumped from the water tank to the pipe. The preheating time is set according to the temperature of the water inlet of the heating pipe. The target temperature is used for preheating, that is, the lower the water temperature at the water inlet, the longer the preheating time; Pump in normal temperature water from the water pump to realize instant hot water outlet and participate in the subsequent pulping process. However, if the water temperature at the water inlet is low and the set target water outlet temperature is high, it will be preheated for a long time, and the flow rate control is also relatively Low, preheating is completed under this working condition, if water is pumped from the water pump, when it enters the heating pipe, a large amount of steam will be generated when the water temperature increases, such as figure 1 As shown (point A is the inlet of the heating pipe, point B is the temperature sensor in the heating pipe, and point C is the outlet of the heating pipe), especially when point C is in the state of closing the water outlet, the pressure at point A increases, if the pipeline If there is residual water inside, the pressure at point A will further increase, so the steam in the pipe will generate reverse air pressure, and the reverse force may make the water in the pump pipe unable to be pumped out effectively, resulting in flow rate If the meter fails to detect the water volume, the system will generate a false alarm at this time, which will affect the user's pulping experience

Method used

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  • Outlet water control method of food processor
  • Outlet water control method of food processor
  • Outlet water control method of food processor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The embodiment of the present invention provides a water outlet control method of a food processing machine, such as figure 2 As shown, the food processing machine may include: a water tank, a pipeline, a water pump, a temperature sensor and a flowmeter, the pipeline is connected to the water tank, the water pump and the flowmeter are arranged on the pipeline, and the pipeline It includes an instant heat pipe for heating the water flowing through the pipeline, the instant heat pipe is arranged at the water outlet of the pipe, the flow meter is arranged between the water pump and the instant heat pipe, and the temperature sensor is arranged In the instant heat pipe, it is used to collect the water temperature in the instant heat pipe; as image 3 As shown, the method may include S101-S103:

[0040] S101. During the pumping period of the water pump, the flow meter is used to detect the water flow in the pipeline in real time;

[0041] S102. When it is detected that the...

Embodiment 2

[0050] This embodiment is on the basis of embodiment one, as Figure 4 As shown, a specific embodiment scheme for adjusting the pumping speed of the water pump is provided.

[0051] In an exemplary embodiment of the present invention, the adjusting the pumping speed of the water pump may include: increasing the pumping speed of the water pump by a first preset speed, so as to change the pumping speed from the current first The pumping speed is adjusted to the second pumping speed, and the second pumping speed is maintained for a first preset time period.

[0052] In an exemplary embodiment of the present invention, when the flow meter detects no flow signal during the process of making hot water and pumping water, the flow rate of the water pump is increased from the first pumping speed V1 to the second pumping speed V2 (V2>V1, V2<Vmax), where Vmax is the rated pumping speed of the water pump, and at the same time, it can control the heat pipe to heat with the initially set h...

Embodiment 3

[0067] On the basis of Embodiment 1 or 2, this embodiment provides a specific embodiment scheme for adjusting the heating power of the instant heat pipe.

[0068] In an exemplary embodiment of the present invention, adjusting the heating power of the instant heat pipe may include: reducing the heating power of the instant heat pipe by a first preset power W1, so as to reduce the heating power from the current first heating power Adjust to the second heating power W2.

[0069] In an exemplary embodiment of the present invention, during the process of making instant hot water and pumping water, when the flow meter detects no flow, the heating power of the instant heat pipe can be reduced, and the water can be continuously pumped synchronously.

[0070] In an exemplary embodiment of the present invention, when the flow meter cannot detect the flow, the heating power (first heating power) W1 of the heat pipe may be reduced. At this time, the water pump can be controlled to pump w...

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PUM

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Abstract

An embodiment of the invention discloses an outlet water control method of a food processor. The food processor comprises a water tank, a pipeline, a water pump, a temperature sensor and a flowmeter,wherein the pipeline is connected with the water tank; the water pump and the flowmeter are arranged on the pipeline; the pipeline comprises an instant heating pipe used for heating water flowing through the pipeline; the instant heating pipe is arranged at a water outlet of the pipeline; the flowmeter is arranged between the water pump and the instant heating pipe; and the temperature sensor is arranged in the instant heating pipe and is used for collecting the water temperature in the instant heating pipe. The method comprises the following steps: during the water pumping period of the waterpump, detecting the flow of the water in the pipeline in real time through the flowmeter; when the water flow is detected to be less than or equal to a preset flow threshold value, detecting the water temperature collected by the temperature sensor; and when the water temperature is larger than or equal to a preset temperature threshold value, adjusting the water pumping speed of the water pump and / or the heating power of the instant heating pipe to increase the water flow. According to the scheme, false alarm is reduced, and meanwhile, the outlet water temperature is ensured.

Description

technical field [0001] The embodiment of the present invention relates to the control technology of household electrical appliances, in particular to a water outlet control method of a food processing machine. Background technique [0002] Some existing food processors, such as soybean milk machines, add a waterway to increase the function of instant drinking water, and use instant hot water to directly output hot water. On the one hand, it is used for pulping, saving the time required for heating with normal temperature water. If you need to drink directly, you can get out instant drinking water through this added waterway. [0003] In order to ensure that hot water can be produced in time, the heating pipe will be preheated first. After preheating to a certain extent, water will be pumped from the water tank to the pipe. The preheating time is set according to the temperature of the water inlet of the heating pipe. The target temperature is used for preheating, that is, t...

Claims

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Application Information

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IPC IPC(8): A47J31/54A47J31/56A47J31/46
CPCA47J31/46A47J31/545A47J31/56
Inventor 王旭宁张小川
Owner JOYOUNG CO LTD