A kind of servo valve and direct current motor water pump linkage's mute electric water heater

Abstract

This utility model relates to the field of water heater technology and discloses a silent electric water heater with a servo valve and a DC motor water pump linked together. It includes a housing, within which are an inlet pipe, an outlet pipe, and an electric heating element. The electric heating element has an inlet and an outlet. The inlet pipe is connected to the inlet, and the outlet pipe is connected to the outlet. A control valve and an electric water pump are connected to the inlet pipe, which has an inlet end for connecting external water. The electric water pump is connected between the control valve and the electric heating element. Water flowing in from the inlet end flows sequentially through the control valve, the electric water pump, and the electric heating element. This silent electric water heater with a servo valve and a DC motor water pump linked together achieves control over the water output through the cooperation of the servo valve and the DC motor water pump. It is less susceptible to interference from magnetic fields and electromagnetic radiation, operates stably, has low noise, and provides a superior user experience. The internal parts of the housing are rationally arranged, with a compact structure and small size, making it easy to install.

Description

Technical Field

[0001] This utility model relates to the field of water heater technology, and more specifically, to a silent electric water heater that links a servo valve and a DC motor water pump. Background Technology

[0002] Instantaneous water heaters, also known as rapid or quick-heating water heaters, are characterized by providing hot water immediately after cold water is introduced. Simply opening the outlet valve provides a continuous supply of hot water for a short time, and closing the valve quickly stops heating when hot water is no longer needed. Most instantaneous water heaters currently available are electric or gas-fired. Electric instantaneous water heaters work by using a high-powered electric heater to rapidly heat the cold water flowing through the heating zone, quickly reaching the desired operating temperature, achieving the goal of cold water in, hot water out. Because they eliminate the storage device found in traditional thermal water heaters (such as the typically tens of liters of dynamic storage in household electric water heaters), they are compact and easy to install.

[0003] Some existing instant water heaters require extremely fast and high-frequency on / off control of high-power components, typically using silicon controlled rectifiers (SCRs). These water heaters contain multiple components, some of which (especially those with high rated power and current) generate significant magnetic fields when powered on. Combined with electromagnetic radiation from various household electronic devices and appliances, the SCR is susceptible to interference from these magnetic fields and electromagnetic radiation, leading to unstable control and consequently, unstable water flow. In extreme cases, the SCR may even fail to properly shut off the water flow, posing a safety hazard. Interference with the SCR can also generate electromagnetic noise, resulting in a poor user experience. Furthermore, the numerous internal components of some existing instant water heaters contribute to their large size, making them inconvenient for installation in confined spaces. Utility Model Content

[0004] To address at least one of the aforementioned problems, this utility model provides a silent electric water heater with a servo valve and a DC motor water pump linked together, comprising: a housing, wherein an inlet pipe, an outlet pipe, and an electric heating element are disposed within the housing; the electric heating element has an inlet and an outlet; the inlet pipe is connected to the inlet; the outlet pipe is connected to the outlet; a control valve and an electric water pump are connected to the inlet pipe; the inlet pipe has an inlet end for connecting external water; the electric water pump is connected between the control valve and the electric heating element; water flowing in from the inlet end flows sequentially through the control valve, the electric water pump, and the electric heating element; this utility model's silent electric water heater with a servo valve and a DC motor water pump linked together achieves control over the water output through the cooperation of the servo valve and the DC motor water pump, is less susceptible to interference from magnetic fields and electromagnetic radiation, operates stably, has low noise, and provides a superior user experience; the internal parts of the housing are rationally arranged, the structure is compact, the size is small, and installation is convenient.

[0005] Optionally, the water inlet pipeline includes a first water pipe that extends vertically, and the control valve and the electric water pump are respectively connected to both sides of the upper end of the first water pipe.

[0006] Optionally, the electric heating element and the electric water pump are placed on the same side of the first water pipe, and the electric water pump is placed between the first water pipe and the electric heating element.

[0007] Optionally, the water inlet is located at the lower part of the electric heating element and is horizontally positioned facing the first water pipe. The lower end of the electric water pump is provided with a water pump outlet. The water inlet pipeline also includes a second water pipe connected between the water inlet and the water pump outlet.

[0008] Optionally, the second water pipe is a right-angle adapter pipe.

[0009] Optionally, the water outlet is located at the lower end of the electric heating element, the water outlet faces downward, the upper end of the water outlet pipe is connected to the water outlet, and the water outlet pipe extends in a vertical direction.

[0010] Optionally, a check valve is connected to the water inlet pipe, and the check valve is connected between the water inlet end and the control valve.

[0011] Optionally, the electric heating element is a thick-film heating tube.

[0012] Optionally, the control valve is a servo valve.

[0013] Optionally, the electric water pump is a DC motor water pump.

[0014] Compared to existing technologies, the silent electric water heater of this invention, which links a servo valve and a DC motor water pump, controls the water output through the cooperation of the servo valve and the DC motor water pump. It is less susceptible to interference from magnetic fields and electromagnetic radiation, operates stably, has low noise, and provides a superior user experience. The internal components of the casing are rationally arranged, compact in structure, and small in size, facilitating installation. The control valve and the electric water pump are respectively connected to the left and right sides of the upper end of the first water pipe, resulting in a compact structure and efficient use of space on both sides of the first water pipe. The space below the electric water pump is used for the layout of the inlet and the connection structure, resulting in a compact structure and full utilization of space. The outlet is located at the lower end of the electric heating element, facilitating downward connection of hot water from the lower side of the casing, as upward or horizontal connection might cause some water pressure loss. The control valve is a servo valve with its own signal feedback function, ensuring high control precision. The electric water pump is a DC motor water pump, which has excellent speed regulation performance, allowing for adjustment of the water output by regulating the speed. Attached Figure Description

[0015] Figure 1 This is a perspective view of the silent electric water heater that links the servo valve and the DC motor water pump according to this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the silent electric water heater with servo valve and DC motor water pump linkage of this utility model.

[0017] Figure 3 This is a schematic diagram of the electric heating element of the silent electric water heater that links the servo valve and the DC motor water pump according to this utility model.

[0018] The component names corresponding to the various labels in the figure are as follows: 1 is the housing, 2 is the water inlet pipe, 20 is the water inlet end, 21 is the first water pipe, 22 is the second water pipe, 3 is the water outlet pipe, 4 is the electric heating element, 41 is the water inlet, 42 is the water outlet, 5 is the control valve, 6 is the electric water pump, 7 is the backflow preventer, and 8 is the vertical water pipe. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship when the product is in normal use.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0022] See Figures 1-3 This utility model provides a silent electric water heater with a servo valve and a DC motor water pump linkage, comprising: a housing 1, an inlet pipe 2, an outlet pipe 3, and an electric heating element 4 inside the housing 1. The electric heating element 4 has an inlet 41 and an outlet 42. The inlet pipe 2 is connected to the inlet 41, and the outlet pipe 3 is connected to the outlet 42. A control valve 5 and an electric water pump 6 are connected to the inlet pipe 2. The inlet pipe 2 has an inlet end 20 for connecting external water. The electric water pump 6 is connected between the control valve 5 and the electric heating element 4. The water flowing into the inlet end 20 flows sequentially through the control valve 5, the electric water pump 6, and the electric heating element 4. This utility model's silent electric water heater with a servo valve and a DC motor water pump linkage achieves control over the water output through the cooperation of the servo valve and the DC motor water pump. It is not easily affected by magnetic fields or electromagnetic radiation, operates stably, has low noise, and provides a good user experience. The internal parts of the housing are reasonably arranged, the structure is compact, the size is small, and it is easy to install.

[0023] See Figure 2 and Figure 3 The water inlet pipe 2 includes a first water pipe 21, which extends vertically. The control valve 5 and the electric water pump 6 are respectively connected to the left and right sides of the upper end of the first water pipe 21. The structure is compact and makes reasonable use of the space on both sides of the first water pipe 21. The electric heating element 4 and the electric water pump 6 are placed on the same side of the first water pipe 21, with the electric water pump 6 placed between the first water pipe 21 and the electric heating element 4. The structure is compact. The water inlet 41 is located at the lower part of the electric heating element 4 and is horizontally set towards the first water pipe 21. The electric water pump 6 has a water pump outlet at its lower end. The water inlet pipe 2 also includes a second water pipe 22 connecting the water inlet 41 and the water pump outlet. The layout of the water inlet 41 and the electric water pump 6 is arranged by utilizing the space under the electric water pump 6. The structure is compact and makes full use of the space.

[0024] See Figure 2 and Figure 3 The second water pipe 22 is a right-angle adapter pipe, which has a simple structure for water circuit turning and connection, and low production cost. The outlet 42 is set at the lower end of the electric heating element 4, which makes it easy to connect hot water downwards from the lower side of the shell. Connecting upwards or horizontally may cause some water pressure loss. The inlet 20 is set at the lower side of the shell 1, so that water inlet and outlet are on the same side. During installation, it only occupies the space on the lower side of the shell, saving installation space. The outlet 42 is opened downwards, and the upper end of the outlet pipe 3 is connected to the outlet 42. The outlet pipe 3 extends vertically. The inlet 20 can extend upwards through a vertical water pipe 8, so that water can also be connected to the upper side of the shell. The installation is flexible. During installation, the end of the vertical water pipe 8 that is not connected to water can be blocked.

[0025] See Figure 2 A check valve 7 is connected to the inlet pipe 2 to prevent backflow of water. The check valve 7 is connected between the inlet end 20 and the control valve 5. The check valve 7 can be a check valve with a filter screen to achieve filtration and improve the quality of the effluent. The electric heating element 4 is a thick film heating tube, which heats up quickly and achieves instant hot water output. The control valve 5 is a servo valve, which has its own signal feedback function and high control accuracy.

[0026] See Figure 2 The electric water pump 6 is a DC motor water pump, which has excellent speed regulation performance. By adjusting the speed, the water output can be adjusted. The control valve 5 and the electric water pump 6 are matched and linked through an algorithm program. The water output is affected by the opening degree of the control valve 5 and the rotational speed of the electric water pump 6. For example, if a certain flow rate is required, the corresponding opening degree of the control valve 5 and the rotational speed of the electric water pump 6 can be preset by the program to output the corresponding flow rate. Compared with thyristors, the operation of the control valve 5 and the electric water pump 6 is less susceptible to interference from magnetic fields and electromagnetic radiation, and is less likely to generate electromagnetic noise, making the operation more reliable. In addition, the opening degree of the control valve 5 can also control the water flow rate, eliminating the need to frequently adjust the rotational speed of the electric water pump 6 to adjust the water output. Adjusting the rotational speed of the electric water pump 6, especially at high speeds, can easily generate noise. Adjusting the water output by adjusting the opening degree of the control valve 5 can also achieve a certain noise reduction effect.

[0027] This invention relates to a silent electric water heater that links a servo valve and a DC motor water pump. Through the cooperation of the servo valve and the DC motor water pump, the water output volume is controlled, making it less susceptible to interference from magnetic fields and electromagnetic radiation. It operates stably with low noise, providing a superior user experience. The internal components of the housing are rationally arranged, compact in structure, and small in size, facilitating installation. The control valve and the electric water pump are respectively connected to the left and right sides of the upper end of the first water pipe, resulting in a compact structure and efficient use of space on both sides of the first water pipe. The space below the electric water pump is utilized for the layout of the inlet and the connection structure, resulting in a compact structure and full space utilization. The outlet is located at the lower end of the electric heating element, facilitating downward connection of hot water from the lower side of the housing. Connecting upwards or horizontally might cause some water pressure loss. The control valve is a servo valve with its own signal feedback function, ensuring high control precision. The electric water pump is a DC motor water pump with excellent speed regulation performance, allowing for adjustment of the water output volume through speed control.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A silent electric water heater with linkage of servo valve and direct current motor water pump, characterized in that, include: The housing (1) is provided with an inlet pipe (2), an outlet pipe (3) and an electric heating element (4). The electric heating element (4) is provided with an inlet (41) and an outlet (42). The inlet pipe (2) is connected to the inlet (41), and the outlet pipe (3) is connected to the outlet (42). The inlet pipe (2) is connected to a control valve (5) and an electric water pump (6). The inlet pipe (2) is provided with an inlet end (20) for connecting to external water. The electric water pump (6) is connected between the control valve (5) and the electric heating element (4). The water flowing into the inlet end (20) flows through the control valve (5), the electric water pump (6) and the electric heating element (4) in sequence.

2. The silent electric water heater with linkage of servo valve and direct current motor water pump according to claim 1, characterized in that, The water inlet pipe (2) includes a first water pipe (21), which extends vertically. The control valve (5) and the electric water pump (6) are respectively connected to the two sides of the upper end of the first water pipe (21).

3. The silent electric water heater with linkage of servo valve and direct current motor water pump according to claim 2, characterized in that, The electric heating element (4) and the electric water pump (6) are placed on the same side of the first water pipe (21), and the electric water pump (6) is placed between the first water pipe (21) and the electric heating element (4).

4. The silent electric water heater with servo valve and DC motor water pump linkage according to claim 3, characterized in that, The water inlet (41) is located at the lower part of the electric heating element (4). The water inlet (41) is horizontally positioned on the side facing the first water pipe (21). The electric water pump (6) has a water pump outlet at its lower end. The water inlet pipe (2) also includes a second water pipe (22) connected between the water inlet (41) and the water pump outlet.

5. The silent electric water heater with servo valve and DC motor water pump linkage according to claim 4, characterized in that, The second water pipe (22) is a right-angle adapter pipe.

6. The silent electric water heater with servo valve and DC motor water pump linkage according to claim 1, characterized in that, The water outlet (42) is located at the lower end of the electric heating element (4), the water outlet (42) is opened downward, the upper end of the water outlet pipe (3) is connected to the water outlet (42), and the water outlet pipe (3) extends in the vertical direction.

7. The silent electric water heater with servo valve and DC motor water pump linkage according to claim 1, characterized in that, A check valve (7) is connected to the water inlet pipe (2), and the check valve (7) is connected between the water inlet end (20) and the control valve (5).

8. The silent electric water heater with servo valve and DC motor water pump linkage according to claim 1, characterized in that, The electric heating element (4) is a thick film heating tube.

9. The silent electric water heater with servo valve and DC motor water pump linkage according to claim 1, characterized in that, The control valve (5) is a servo valve.

10. The silent electric water heater with servo valve and DC motor water pump linkage according to any one of claims 1-9, characterized in that, The electric water pump (6) is a DC motor water pump.

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