CN202515432U - Self-weight temperature-constant water distribution device - Google Patents

Abstract

The utility model relates to a self-weighing temperature-constant water distribution device. Temperature-constant water heaters in the existing market are required to continuously heat water, so as to achieve a temperature-constant effect, so that the required energy consumption is high, and thus the use cost is higher; and in addition, in the process of pouring water, the amount of water is required to be observed all the time, and thus great inconvenience is brought. The self-weight temperature-constant water distribution device comprises a hot water insulating container, a hot water sensor module, a cold water container, a cold water sensor module, a weighting module, an input module, an output display module, a microcontroller module and an actuating mechanism. The self-weight temperature-constant water distribution device can be used for calculating the volume of outlet water according to the weight of milk powder and then regulating the mixing ratio of cold water and hot water by use of the energy conservation principle so as to achieve the effect that the temperature after milk preparation is a set water temperature; and the self-weight temperature-constant water distribution device can be used for completely simulating manual milk preparation steps, reducing the energy consumption and lowering the use cost.

Description

Self-weighing constant temperature water distribution device

technical field

The utility model belongs to the field of daily electronic technology and relates to a self-weighing constant temperature water distributing device for formula milk powder for infants and young children.

Background technique

At present, artificial feeding of infants and young children is a tedious and meticulous work. Babies tell their parents how hungry they are by crying. Parents have to complete trivial and careful milk matching work amidst crying. The most painful thing here is to adjust the temperature and volume of water, as well as the proportion of milk powder. Especially on cold winter nights, it is a daunting task. Traditional artificial milk mixing needs to pour hot water and cold water repeatedly, and manually adjust the temperature and volume of water. This method is not only cumbersome but also unsuitable for temperature control. How to mix milk and water in a timely and accurate manner has become an urgent problem for young parents to solve. Therefore, the development of a low-cost and practical water distribution device has a good market prospect.

The constant temperature water heaters currently on the market need to continuously heat water to achieve a constant temperature effect, which requires high energy consumption, resulting in high use costs. Still need to observe the water quantity all the time when pouring water in addition, still put many inconveniences.

Contents of the invention

The purpose of the utility model is to overcome the shortcomings of the above-mentioned manual operation, and provide an automatic water dispensing device by virtue of sensor technology and microprocessor technology, which is used for formula milk powder for infants and young children.

The self-weighing constant temperature water distribution device includes a hot water insulation container for storing boiled hot water; a hot water sensor module is installed in the hot water insulation container for detecting the temperature of the hot water in the hot water insulation container, and The sensing signal is sent to the microcontroller module; the cold water container is used to store cold boiled water or mineral water for direct drinking; the cold water sensor module is set in the cold water container to detect the temperature of the cold water in the cold water container and send the temperature sensing signal Sent to the microcontroller module; the weighing module is used to weigh the weight of the feeding bottle, the weight of milk powder in the feeding bottle without water distribution, the weight of hot and cold water during the water distribution process, the output terminal of the weighing module is connected to the microcontroller module; the input The module is used to set the water distribution mode, input the temperature of the water distribution, the volume of the water distribution, the output terminal of the input module is connected with the microcontroller module; the output display module is used to display the weight of the object and the set value, etc., and the output display module The input terminal is connected with the microcontroller module; the microcontroller module is used to complete the water distribution process control and the actuator is used to execute the water distribution process. The mechanism is installed on the water outlet of the hot water insulation container and the cold water container. Microcontroller module control.

The device completely simulates the steps of artificial milk mixing, reduces energy consumption, lowers the cost of use, and improves the cost performance and market competitiveness of the product. According to the experimental research of the utility model, the water distribution temperature error of the device is ±1°C; the water distribution volume error is ±5ml.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the control process of automatic water distribution according to the best embodiment of the utility model.

Detailed ways

Further illustrate the utility model below in conjunction with accompanying drawing.

The automatic weighing and constant temperature water distribution system for infant formula milk powder implemented according to the best solution of the utility model is shown in Figure 1. It is composed of a hot water container, a hot water temperature detection circuit, a cold water container, a cold water temperature detection circuit, a solenoid valve, a weighing circuit, a microcontroller, a keyboard input circuit and a liquid crystal display circuit. When no water distribution orders are received, the system works as an electronic balance. Any object (the mass must be within the range of the load cell) is placed on the weighing platform (weighing circuit), and its mass will be displayed on the LCD screen (model LCD1602). If the microcontroller (model ATmega16) receives the command input from the keyboard input circuit, it will enter the water distribution mode. The hot water container and the cold water container are respectively installed on the top of the water distribution device, and the hot water temperature sensor and the cold water temperature sensor are respectively located in the two containers. The temperature sensor adopts LM235 chip. The signal conditioning circuit adopts AD620 chip. The load cell adopts a cantilever beam sensor with a range of 0-600g.

The method for automatically adjusting water temperature and volume by using the above-mentioned device is specially applied to formulating milk powder, and can obtain warm water and water volume required for formulating milk powder, and has the characteristics of energy saving, ease of use, and accuracy. First use the buttons to set the required water temperature and water volume, then detect the hot water and cold water respectively through the hot water temperature sensor and the cold water temperature sensor, obtain the hot water temperature value and the cold water temperature value, and send them to the microcontroller module for data processing, according to the water temperature The formula for specific heat and heat transfer:

               （1）

(1)

                                             （2）  

(2)

Among them, the temperature of hot water is T1 (°C), the volume is V1 (ml), the temperature of cold water is T2 (°C), and the volume is V2 (ml), the temperature of the mixed water is T (°C), and the volume of water is V (ml) . The density of water is C and the specific heat of water is (Q).

The volume of cold water and hot water is obtained by eliminating C and Q from formulas (1) and (2):

                            （3）

(3)

                                           （4）

(4)

Calculate the amount of cold water and hot water required for water distribution through formula (3) and formula (4). At the same time, the single-chip microcomputer monitors the value obtained by the pressure sensor in real time. According to this value, the single-chip microcomputer gives a control signal to control the opening and closing of the solenoid valve. , you can put the appropriate proportion of cold water and hot water into the cup, and after mixing, you will get the warm water with the specified water temperature and amount.

As shown in Figure 2, there are two water distribution modes. The first one is to distribute water according to the directly given water distribution temperature and water distribution volume. After receiving the preparation information, the microcontroller detects the water temperature in the container respectively through the hot water temperature sensor module and the cold water temperature sensor module, and calculates the required hot water and cold water volumes according to the water distribution method. Then convert to the required hot water and cold water quality respectively. The microcontroller outputs a control signal to open the cold water distribution control valve to release cold water. At this time, the weighing circuit weighs the quality of the cold water in real time. When the required quality of cold water is reached, the microcontroller outputs a control signal to close the cold water distribution control valve. At the same time, the output control signal opens the hot water distribution control valve to release hot water. At this time, the load cell module weighs the distribution water quality in real time. When the required distribution water quality is reached, the microcontroller outputs a control signal to close the hot water distribution control valve. The water distribution mode of the directly given water distribution temperature and water distribution volume is completed.

The second is to mix water according to the quality of milk powder in the feeding bottle, the set temperature and the ratio between milk powder and water. In this mode, when the microcontroller receives the preparation instruction, it will measure the quality of the milk powder through the weighing circuit, and then calculate the quality of the water that needs to be dispensed according to the ratio between the milk powder and water provided by the formula milk powder. After having the distribution water quality and distribution water temperature, the next steps are the same as the first mode.

Claims (1)

1. Self-weighing constant temperature water distribution device, characterized in that: Including hot water insulation container for storing boiled hot water; The hot water sensor module is arranged in the hot water insulated container, and is used for detecting the temperature of the hot water in the hot water insulated container, and sends the temperature sensing signal to the microcontroller module; Cold water container for storing cold boiled water or mineral water for direct drinking; The cold water sensor module is arranged in the cold water container, and is used for detecting the temperature of the cold water in the cold water container, and sends the temperature sensing signal to the microcontroller module; The weighing module is used to weigh the weight of the feeding bottle, the weight of milk powder in the feeding bottle without water distribution, the weight of hot and cold water during the water distribution process, and the output terminal of the weighing module is connected to the microcontroller module; The input module is used to set the water distribution mode, input the temperature of the distribution water, the volume of the distribution water, and the output terminal of the input module is connected with the microcontroller module; The output display module is used to display the weight of the object and the set value, and the input terminal of the output display module is connected with the microcontroller module; Microcontroller module, used to complete the water distribution process control; The executive mechanism is used to execute the water distribution process, and the mechanism is installed on the water outlets of the hot water insulation container and the cold water container, and is controlled by the micro-controller module.

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