Low-power-consumption intelligent water return device

Abstract

The utility model discloses a low-power-consumption intelligent water return device which is connected with a water heater body and is characterized by comprising a cold water pipe, a hot water pipe, a connecting pipe, a one-way valve, a control assembly, a magnet, a magnetic switch and a temperature sensing probe, the connecting pipe is connected between the cold water pipe and the hot water pipe, and the temperature sensing probe is arranged at the joint of the connecting pipe and the cold water pipe. The circulating water temperature is detected, when it is detected that the circulating water temperature reaches the set temperature, zero cold water preheating is completed, and the problem that cold water of a cold water pipe is heated or preheated incompletely is solved; the one-way valve is arranged in the connecting pipe and connected with the magnet, and the magnet acts along with the one-way valve. The magnetic switch is connected with the control assembly and corresponds to the magnet; the control assembly is provided with a power supply module. The magnetic switch is responsible for on-off of the power supply module. The water heater is good in stability, electricity consumption is saved, zero cold water preheating time is accurate, and preheating time and fuel gas are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, and more specifically to a water return device in a zero cold water system of a gas water heater. Background Art

[0002] Zero cold water gas water heaters are becoming more and more popular among consumers, but many users do not have pre-buried return pipes in their homes. The two-pipe zero cold water solves this problem, mainly by installing a return device between the cold and hot water pipes at the water use point, and using the cold water pipe as the zero cold water return pipe to achieve the pipeline preheating function. The two-pipe zero cold water return pipe uses the cold water pipe. After each preheating, the cold water pipe is filled with hot water. If the user uses cold water, the hot water needs to be drained first, which results in a poor user experience; the heating of cold water in the cold water pipe causes a waste of resources. There are two technical solutions for the existing zero cold water preheating time: 1. Fixed preheating time, resulting in over-preheating and wasting gas; 2. Automatically calculate the pipeline length based on the first return time, shorten the heating time, and achieve half-pipe heating, but its accuracy is poor, which will cause incomplete preheating or too long preheating. Summary of the invention

[0003] The purpose of the utility model is to solve the deficiencies of the prior art and to provide a low-power intelligent water return device which is stable and reliable, saves electricity and improves the endurance of the water return device.

[0004] The utility model adopts the following technical solutions to achieve the above purpose: a low-power intelligent water return device, connected to the water heater body, characterized in that it includes a cold water pipe, a hot water pipe, a connecting pipe, a one-way valve, a control component, a magnet, a magnetic switch, and a temperature sensing probe. The connecting pipe is connected between the cold water pipe and the hot water pipe. The temperature sensing probe is arranged at the junction of the connecting pipe and the cold water pipe to detect the circulating water temperature. When it is detected that the circulating water temperature reaches the set temperature, the zero cold water preheating is completed, solving the problem of cold water heating or incomplete preheating of the cold water pipe;

[0005] The one-way valve is arranged in the connecting pipe, the one-way valve is connected to the magnet, and the magnet moves with the one-way valve; the magnetic switch is connected to the control component and corresponds to the magnet; the control component is provided with a power supply module, and the magnetic switch is responsible for the on and off of the power supply module, and only works when the preheating function is turned on, thereby realizing the low power consumption requirement of the entire device, only requiring battery power supply, and having a long service life, avoiding frequent battery replacement.

[0006] As a further illustration of the above solution, the temperature sensing probe is communicatively connected to the water heater body, and the temperature sensing probe detects the temperature and transmits the data to the water heater body.

[0007] Furthermore, the water flow direction of the one-way valve is from the hot water pipe to the cold water pipe through the connecting pipe.

[0008] Furthermore, the temperature sensing probe is connected to the control component, the control component is provided with a communication module, and the temperature sensing probe is connected to the water heater body through WIFI or 433 communication mode.

[0009] Furthermore, the cold water pipe is externally connected to a return water valve body, which detects the return water temperature at all times through a temperature sensor and transmits it to the water heater body, thereby achieving precise temperature control and precise heating time, avoiding cold water heating in the cold water pipe, improving user bathing comfort, and achieving energy saving.

[0010] Furthermore, the magnetic switch is arranged outside the connecting pipe. When the return water temperature reaches the set temperature, the preheating function is turned off, the one-way valve drives the magnet to reset, and the magnetic switch controls the power supply module to cut off power to achieve low power consumption.

[0011] The beneficial effects that can be achieved by the utility model using the above technical solution are:

[0012] The utility model adopts a return water structure which is mainly composed of a cold water pipe, a hot water pipe, a connecting pipe, a one-way valve, a control component, a magnet, a magnetic switch and a temperature sensing probe. The connecting pipe is connected between the cold water pipe and the hot water pipe. The return water temperature is detected by a temperature sensor at all times and transmitted to the main water heater, so as to achieve precise temperature control and precise heating time, avoid heating of cold water in the cold water pipe, improve the bathing comfort of users and achieve energy saving. The magnetic switch is responsible for controlling the on and off of the power supply module of the component, and it only works when the preheating function is turned on, so as to achieve low power consumption requirement of the whole device, and only needs battery power supply, and has a long service life, so as to avoid frequent battery replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model in the closed state of the preheating function.

[0014] Figure 2 This is a schematic diagram of the structure of the utility model when the preheating function is turned on.

[0015] Explanation of the reference numerals: 1, cold water pipe 2, hot water pipe 3, connecting pipe 4, one-way valve 5, control component 6, magnet 7, magnetic switch 8, temperature sensor 9, return valve body. DETAILED DESCRIPTION

[0016] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0017] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, "at least" means one or more, unless otherwise clearly and specifically defined.

[0018] In the present invention, unless otherwise specified and limited, the terms "assembly", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] In the utility model, unless otherwise specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "below" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the height of the second feature. A first feature being "above", "below" and "below" a second feature includes that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than the second feature.

[0020] The following is a further description of the specific implementation of the utility model in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the utility model are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the utility model, and cannot be understood as limiting the utility model.

[0021] like Figure 1-Figure 2As shown, the utility model is a low-power intelligent water return device, which is connected to the water heater body in communication. The water return device includes a cold water pipe 1, a hot water pipe 2, a connecting pipe 3, a one-way valve 4, a control component 5, a magnet 6, a magnetic switch 7, a temperature sensor 8, and the cold water pipe is connected to the water return valve body 9. The connecting pipe 3 is connected between the cold water pipe 1 and the hot water pipe 2. The temperature sensor 8 is arranged at the junction of the connecting pipe 3 and the cold water pipe 1 to detect the circulating water temperature. When it is detected that the circulating water temperature reaches the set temperature, the zero cold water preheating is completed, solving the problem of cold water heating or incomplete preheating of the cold water pipe; the one-way valve 4 is arranged in the connecting pipe 3, the one-way valve 4 is connected to the magnet 6, and the magnet 6 moves with the one-way valve; the magnetic switch 7 is connected to the control component 5 and corresponds to the magnet; the control component is provided with a power supply module, and the magnetic switch is responsible for the on and off of the power supply module. It only works when the preheating function is turned on, realizing the low power consumption requirement of the entire device, only battery power is needed, and the use time is long, avoiding frequent battery replacement.

[0022] The temperature sensing probe 8 is connected to the water heater body for communication. The temperature sensing probe detects the temperature and transmits the data to the water heater body. The water flow direction of the one-way valve is from the hot water pipe to the cold water pipe through the connecting pipe. The temperature sensing probe is connected to the control component, and the control component is provided with a wireless communication module. The temperature sensing probe is connected to the water heater body for communication via WIFI or 433 communication.

[0023] Furthermore, the magnetic switch 7 is arranged outside the connecting pipe 3. When the preheating function is turned on, the one-way valve drives the magnet to move, the magnetic switch is activated, the control module is powered on, the return water temperature is detected at all times, and the data is transmitted to the main water heater. When the return water temperature reaches the set temperature, the preheating function is turned off, the one-way valve drives the magnet to reset, and the magnetic switch controls the power supply module to cut off the power to achieve low power consumption.

[0024] Compared with the prior art, the utility model adopts a temperature sensor to detect the return water temperature at all times, realizes precise temperature control and precise heating time, avoids heating of cold water in the cold water pipeline, improves the bathing comfort of users, and realizes energy saving; through the magnetic switch, it is responsible for controlling the on and off of the component power supply module, and only works when the preheating function is turned on, realizes the low power consumption requirement of the whole device, only needs battery power supply, and has a long service life, avoiding frequent battery replacement.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A low-power intelligent water return device connected to the water heater body, characterized in that: It includes a cold water pipe, a hot water pipe, a connecting pipe, a one-way valve, a control component, a magnet, a magnetic switch, and a temperature sensing probe. The connecting pipe is connected between the cold water pipe and the hot water pipe. The temperature sensing probe is arranged at the junction of the connecting pipe and the cold water pipe to detect the temperature of the circulating water. The one-way valve is arranged in the connecting pipe, the one-way valve is connected to the magnet, and the magnet moves with the one-way valve; the magnetic switch is connected to the control component and corresponds to the magnet; the control component is provided with a power supply module, and the magnetic switch is responsible for the on and off of the power supply module.

2. A low-power intelligent water return device according to claim 1, characterized in that: The temperature sensing probe is in communication connection with the water heater body, and the temperature sensing probe detects the temperature and transmits the data to the water heater body.

3. A low-power intelligent water return device according to claim 1, characterized in that: The water flow direction of the one-way valve is that the hot water pipe flows to the cold water pipe through the connecting pipe.

4. A low-power intelligent water return device according to claim 1, characterized in that: The temperature sensing probe is connected to the control component, and the control component is provided with a communication module.

5. A low-power intelligent water return device according to claim 4, characterized in that: The temperature sensing probe is connected to the water heater body via WIFI or 433 communication.

6. A low-power intelligent water return device according to claim 1, characterized in that: The cold water pipe is externally connected with a return valve body.

7. A low-power intelligent water return device according to claim 1, characterized in that: The magnetic switch is arranged outside the connecting pipe.

Images