阅读说明：本技术 一种热水器及其控制方法 (Water heater and control method thereof ) 是由 刘洋 孙强 蔡想周 王建飞 于 2018-08-20 设计创作，主要内容包括：本发明涉及热水器技术领域,尤其涉及一种热水器及其控制方法。热水器包括内胆,所述内胆上安装有进水管和出水管,所述内胆内侧的中部设置有第一温度传感器,所述内胆内侧的上部、中部和下部分别设置有上加热管、中加热管和下加热管,所述第一温度传感器、所述上加热管、所述中加热管和所述下加热管均与控制器电连接。内胆中部的第一温度传感器能够实时检测水温,控制器能够根据水温变化控制上加热管、中加热管和下加热管交替或结合进行加热,无需加热整胆水就能确保热水量充足,同时减少了等待时间,既满足了用户的用水需求,又避免了能源浪费。(The invention relates to the technical field of water heaters, in particular to a water heater and a control method thereof. The water heater comprises an inner container, wherein a water inlet pipe and a water outlet pipe are installed on the inner container, a first temperature sensor is arranged in the middle of the inner side of the inner container, an upper heating pipe, a middle heating pipe and a lower heating pipe are respectively arranged on the upper portion, the middle portion and the lower portion of the inner side of the inner container, and the first temperature sensor, the upper heating pipe, the middle heating pipe and the lower heating pipe are electrically connected with a controller. The first temperature sensor in the middle of the inner container can detect the water temperature in real time, the controller can control the upper heating pipe, the middle heating pipe and the lower heating pipe to heat alternately or in combination according to the change of the water temperature, the hot water quantity can be ensured to be sufficient without heating the whole inner container water, the waiting time is reduced, the water demand of a user is met, and the energy waste is avoided.)

1. The utility model provides a water heater, includes inner bag (1), install inlet tube (2) and outlet pipe (3) on inner bag (1), the inboard middle part of inner bag (1) is provided with first temperature sensor (4), its characterized in that, the inboard upper portion, middle part and the lower part of inner bag (1) are provided with heating pipe (5), well heating pipe (6) and lower heating pipe (7) respectively, first temperature sensor (4) go up heating pipe (5) well heating pipe (6) and lower heating pipe (7) all are connected with the controller electricity.

2. The water heater according to claim 1, characterized in that a second temperature sensor (8) is arranged on the water outlet pipe (3) of the inner container (1), a third temperature sensor (9) and a flow sensor (10) are arranged on the water inlet pipe (2) of the inner container (1), and the second temperature sensor (8), the third temperature sensor (9) and the flow sensor (10) are electrically connected with the controller.

3. A control method of a water heater as claimed in claim 1, wherein the temperature T1 of the first sensor is detected when T1 > T₁₁When the heating is not started, heating is not started; when t is₁₂＜T1≤t₁₁When in use, the upper heating pipe (5) and/or the middle heating pipe (6) are/is started to heat; when T1 is less than or equal to T₁₂When the heating device is used, the lower heating pipe (7) is started to heat or the middle heating pipe (6) and the lower heating pipe (7) are started to heat simultaneously; wherein t is₁₁And t₁₂Is two preset temperature values, and t₁₁＞t₁₂。

4. A control method of a water heater according to claim 2, characterized in that the flow rate F of the flow rate sensor (10) is detected, and when F is 0: detecting the temperature T1 of the first temperature sensor (4) when T1 > T₁₁When the heating is not started, heating is not started; when t is₁₂＜T1≤t₁₁When in use, the upper heating pipe (5) and/or the middle heating pipe (6) are/is started to heat; when T1 is less than or equal to T₁₂When the heating device is used, the lower heating pipe (7) is started to heat or the middle heating pipe (6) and the lower heating pipe (7) are started to heat simultaneously;

when F is more than 0 and less than or equal to F: detecting the temperature T1 of the first temperature sensor (4) when T1 > T₁₁When the heating is not started, heating is not started; when T1 is less than or equal to T₁₁When the temperature is higher than the predetermined value, the temperature T2 of the second temperature sensor (8) and the temperature T3 of the third temperature sensor (9) are detected, and only when T2 < T₂₀And T3 < T₃₀When the heating device is used, the lower heating pipe (7) is started to heat or the middle heating pipe (6) and the lower heating pipe (7) are started to heat simultaneously, otherwise, the heating device is not started to heat;

when F > F: detecting the temperature T1 of the first temperature sensor (4) when T1 > T₁₁When the heating is not started, heating is not started; when T1 is less than or equal to T₁₁When the temperature is higher than the predetermined value, the temperature T2 of the second temperature sensor (8) and the temperature T3 of the third temperature sensor (9) are detected, and when T2 is not less than T₂₀Or when T2 < T₂₀And T3 is more than or equal to T₃₀When the heating device is used, the lower heating pipe (7) is started to heat or the middle heating pipe (6) and the lower heating pipe (7) are started to heat simultaneously, otherwise, the upper heating pipe (5) and/or the middle heating pipe (6) are started to heat;

wherein t is₁₁And t₁₂Is two preset temperature values, and t₁₁＞t₁₂(ii) a f is a preset flow value; t is t₂₀And t₃₀Is a preset temperature value.

5. The control method according to claim 4, wherein when F > F and t₁₂＜T1≤t₁₁And T2 is more than or equal to T₂₀When the water is heated, the lower heating pipe (7) is started to heat; when F > F and t₁₂＜T1≤t₁₁And T2 < T₂₀And T3 is more than or equal to T₃₀When the water is heated, the lower heating pipe (7) is started to heat; when F > F and t₁₂＜T1≤t₁₁And T2 < T₂₀And T3 < T₃₀When starting, addThe heat pipe (5) heats.

6. The control method according to claim 4, wherein when F > F and T1 ≦ T₁₂And T2 is more than or equal to T₂₀When the water is heated, the lower heating pipe (7) is started to heat; when F is more than F and T1 is less than or equal to T₁₂And T2 < T₂₀And T3 is more than or equal to T₃₀When the heating device is used, the lower heating pipe (7) and the middle heating pipe (6) are started to heat; when F is more than F and T1 is less than or equal to T₁₂And T2 < T₂₀And T3 < T₃₀When the heating device is used, the upper heating pipe (5) and the middle heating pipe (6) are started to heat.

Technical Field

The invention relates to the technical field of water heaters, in particular to a water heater and a control method thereof.

Background

The water heater is a device which can increase the temperature of cold water into hot water in a certain time by various physical principles. According to different principles, the water heater can be divided into an electric water heater, a gas water heater, a solar water heater, a magnetic water heater, an air energy water heater, a heating water heater and the like. Among them, the electric water heater is becoming more and more preferred by users because of its advantages of convenience and stability.

The electric water heater mainly heats water conveyed into the inner container through the heating pipe. The electric water heater that exists in the market at present heats inner bag full courage hot water by a heating pipe that stretches to the inner bag bottom, and the drawback of this heating method is that the heating time is long, no matter how much hot water the user uses always need heat most waters in the inner bag, and the hot water of heating more is not in time used and is caused the energy waste, and this heating method is because the hot water of heating causes the heating time to be long more under the certain circumstances of power moreover, can not provide hot water in the short time.

Therefore, a heater and a control method thereof are needed to solve the above technical problems.

Disclosure of Invention

The invention aims to provide a water heater and a control method thereof, and aims to solve the problems of long waiting time and energy waste caused by heating of whole water container in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a water heater comprises an inner container, wherein a water inlet pipe and a water outlet pipe are installed on the inner container, a first temperature sensor is arranged in the middle of the inner side of the inner container, an upper heating pipe, a middle heating pipe and a lower heating pipe are respectively arranged on the upper portion, the middle portion and the lower portion of the inner side of the inner container, and the first temperature sensor, the upper heating pipe, the middle heating pipe and the lower heating pipe are electrically connected with a controller.

The control method of the water heater detects the temperature T1 of the first sensor when T1 > T₁₁When the heating is not started, heating is not started; when t is₁₂＜T1≤t₁₁When the heating device is used, the upper heating pipe and/or the middle heating pipe are started to heat; when T1 is less than or equal to T₁₂When the lower heating pipe is started to heat or the middle heating pipe and the lower heating pipe are startedHeating simultaneously; wherein t is₁₁And t₁₂Is two preset temperature values, and t₁₁＞t₁₂。

As a preferred technical scheme of the water heater, a second temperature sensor is arranged on a water outlet pipe of the inner container, a third temperature sensor and a flow sensor are arranged on a water inlet pipe of the inner container, and the second temperature sensor, the third temperature sensor and the flow sensor are all electrically connected with the controller.

In the control method of the water heater as described above, the flow rate F of the flow rate sensor is detected, and when F is 0: detecting the temperature T1 of the first temperature sensor when T1 > T₁₁When the heating is not started, heating is not started; when t is₁₂＜T1≤t₁₁When the heating device is used, the upper heating pipe and/or the middle heating pipe are started to heat; when T1 is less than or equal to T₁₂When the heating device is used, the lower heating pipe is started to heat or the middle heating pipe and the lower heating pipe are started to heat simultaneously;

when F is more than 0 and less than or equal to F: detecting the temperature T1 of the first temperature sensor when T1 > T₁₁When the heating is not started, heating is not started; when T1 is less than or equal to T₁₁When the temperature T2 of the second temperature sensor and the temperature T3 of the third temperature sensor are detected, only if T2 < T₂₀And T3 < T₃₀When the heating device is started, the lower heating pipe is started to heat or the middle heating pipe and the lower heating pipe are started to heat simultaneously, otherwise, the heating device is not started;

when F > F: detecting the temperature T1 of the first temperature sensor when T1 > T₁₁When the heating is not started, heating is not started; when T1 is less than or equal to T₁₁When the temperature is higher than the first temperature, the temperature T2 of the second temperature sensor and the temperature T3 of the third temperature sensor are further detected, and when T2 is more than or equal to T₂₀Or when T2 < T₂₀And T3 is more than or equal to T₃₀When the heating device is used, the lower heating pipe is started to heat or the middle heating pipe and the lower heating pipe are started to heat simultaneously, otherwise, the upper heating pipe and/or the middle heating pipe are started to heat;

wherein t is₁₁And t₁₂Is two preset temperature values, and t₁₁＞t₁₂(ii) a f is a preset flow value; t is t₂₀And t₃₀Is a preset temperature value.

As a preferred technical scheme of the control method, when F is more than F and t is₁₂＜T1≤t₁₁And T2 is more than or equal to T₂₀When the temperature is high, the lower heating pipe is started to heat; when F > F and t₁₂＜T1≤t₁₁And T2 < T₂₀And T3 is more than or equal to T₃₀When the temperature is high, the lower heating pipe is started to heat; when F > F and t₁₂＜T1≤t₁₁And T2 < T₂₀And T3 < T₃₀When the heating device is used, the upper heating pipe is started to heat.

As a preferable technical scheme of the control method, when F is more than F and T1 is less than or equal to T₁₂And T2 is more than or equal to T₂₀When the temperature is high, the lower heating pipe is started to heat; when F is more than F and T1 is less than or equal to T₁₂And T2 < T₂₀And T3 is more than or equal to T₃₀When the heating device is used, the lower heating pipe and the middle heating pipe are started to heat; when F is more than F and T1 is less than or equal to T₁₂And T2 < T₂₀And T3 < T₃₀When the heating device is used, the upper heating pipe and the middle heating pipe are started to heat.

Compared with the prior art, the invention has the beneficial effects that:

1) according to the water heater and the control method thereof, the upper heating pipe, the middle heating pipe and the lower heating pipe are respectively arranged at the upper part, the middle part and the lower part of the inner container, the first temperature sensor at the middle part of the inner container can detect the water temperature in real time, the controller can control the upper heating pipe, the middle heating pipe and the lower heating pipe to be alternately or jointly heated according to the change of the water temperature, the sufficient hot water quantity can be ensured without heating the whole container of water, meanwhile, the waiting time is reduced, the water demand of a user is met, and the energy waste is avoided.

2) The invention also provides another water heater and a control method thereof, which comprise a second temperature sensor arranged on the water outlet pipe, a third temperature sensor arranged on the water inlet pipe and a flow sensor besides a first sensor arranged in the middle of the inner container.

Drawings

FIG. 1 is a schematic structural diagram of a water heater according to a first embodiment of the present invention;

FIG. 2 is a flow chart illustrating a control method of a water heater according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a water heater according to a second embodiment of the present invention;

fig. 4 is a schematic flow chart of a control method of a water heater according to a second embodiment of the present invention.

In the figure:

1-inner container; 2-water inlet pipe; 3-water outlet pipe; 4-a first temperature sensor; 5-installing a heating pipe; 6-middle heating pipe; 7-lower heating pipe; 8-a second temperature sensor; 9-a third temperature sensor; 10-flow sensor.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.