A water tank induction control device

By integrating the control board and the linkage between the magnetic water level float and the reed switch, the mechanical wear and oxidation contact problems of the traditional water tank water level control system are solved, and the water level detection and ultraviolet lamp control are simplified and the stability is improved.

CN224327368UActive Publication Date: 2026-06-05TIANJIN HANSENDA FILM TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN HANSENDA FILM TECHNOLOGY CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Traditional water tank level control systems suffer from problems such as high mechanical wear, poor contact due to contact oxidation, complex structure, and difficult maintenance. In particular, in water tanks with ultraviolet disinfection functions, the separate design of the water level detection and ultraviolet lamp control modules leads to complicated installation and susceptibility to scale buildup in the water.

Method used

An integrated control board is adopted, combining a reed switch control board and a contact connector board. It uses a gold-plated copper core double spring structure and a silver-nickel alloy layer. The magnetic water level float is linked with the reed switch, replacing the traditional mechanical float structure, simplifying the circuit layout and reducing the risk of failure.

Benefits of technology

This design simplifies the circuit layout for water level detection and UV lamp control, reduces the risk of mechanical wear and oxidation failures, facilitates installation and maintenance, and improves the reliability and stability of the system.

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Abstract

A water tank induction control device, including water tank, contact switch and integrated control panel, contact switch and integrated control panel are arranged on the frame, integrated control panel includes reed control panel and contact joint panel, the back of water tank is provided with the water level float piece with magnetism corresponding with reed control panel, the back of water tank is provided with the ultraviolet lamp control head corresponding with contact joint panel, contact convex needle is arranged on ultraviolet lamp control head, contact convex needle is correspondingly arranged with the convenience of the connection of connecting piece, permanent magnet piece is arranged in the lower part of water level float piece, reed switch is arranged on reed control panel, permanent magnet piece is correspondingly arranged with reed switch, reed control panel is provided with water level induction piece corresponding with water level float piece.The utility model discloses a reed control panel and contact joint panel are integrated in the same control module, simplify the circuit layout of ultraviolet lamp control and water level detection, adopt the magnetic control linkage mechanism of magnetic water level float piece and reed switch, and the problem of mechanical wear and tear and scale jamming is completely eliminated.
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Description

Technical Field

[0001] This utility model relates to the field of water tank monitoring technology, and in particular to a water tank sensing and control device. Background Technology

[0002] With the increasing popularity of smart bathroom appliances, the reliability and functionality requirements of water tank control systems are rising. Traditional water tank level control often uses mechanical float switches or electronic level sensors, which suffer from problems such as high mechanical wear and poor contact due to contact oxidation. Especially in water tanks with ultraviolet disinfection functions, precise water level control and stable conduction of the ultraviolet lamp power supply system are both required. Existing technologies generally have the following shortcomings: First, the mechanical structure of float-type water level switches is easily affected by water scale, leading to sluggish operation; second, the contact parts of the ultraviolet lamp electrodes often use ordinary metal contacts, which are prone to oxide film formation in humid environments, resulting in increased contact resistance; third, the separate design of the water level detection and ultraviolet lamp control modules leads to complex installation structures and difficult maintenance. Summary of the Invention

[0003] The present invention aims to address the shortcomings of the prior art by providing a water tank sensing control device.

[0004] To achieve the above objectives, this utility model adopts the following technical solution:

[0005] A water tank sensing control device includes a water tank, a contact switch, and an integrated control board. The contact switch and the integrated control board are mounted on a frame. The integrated control board includes a reed switch control board and a contact connector board. A magnetic water level float corresponding to the reed switch control board is provided on the back of the water tank. An ultraviolet lamp control head corresponding to the contact connector board is provided on the back of the water tank. An ultraviolet lamp is installed inside the water tank and is electrically connected to the ultraviolet lamp control head outside the water tank. A contact protrusion is provided on the ultraviolet lamp control head. A connecting piece is provided on the contact connector board. The contact protrusion and the connecting piece are correspondingly arranged for easy connection. A permanent magnet is provided at the lower part of the water level float. A reed switch is provided on the reed switch control board. The permanent magnet is correspondingly arranged with the reed switch. A water level sensing piece corresponding to the water level float is provided on the reed switch control board.

[0006] The back of the water tank has a groove above the UV lamp control head, and the water level float is movable within the groove.

[0007] The contact pins of the UV lamp control head adopt a gold-plated copper core double spring sheet structure, and the surface of the connecting piece on the contact connector plate is covered with a silver-nickel alloy layer. The spacing between the connecting pieces matches the spacing between the contact pins.

[0008] The water level sensor is an arc-shaped copper sensor with a polytetrafluoroethylene insulating layer covering its surface.

[0009] The radius of curvature of the water level sensor is consistent with the radius of the moving trajectory of the water level float.

[0010] The beneficial effects of this utility model are as follows: By integrating the reed switch control board and the contact connector board into the same control module, this utility model simplifies the circuit layout of ultraviolet lamp control and water level detection, reduces the risk of failure caused by aging circuits or loose interfaces, and facilitates installation and maintenance. It adopts a magnetic control linkage mechanism of magnetic water level float and reed switch to replace the traditional mechanical float structure, completely eliminating the problems of mechanical wear and scaling. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the back of the water tank of this utility model;

[0013] Figure 3 This is a rear view of the integrated control board of this utility model;

[0014] Figure 4 This is the circuit layout diagram of this utility model;

[0015] In the diagram: 1-Contact switch; 2-Integrated control board; 3-Reed switch control board; 4-Contact connector board; 5-Water level float; 6-UV lamp control head; 7-Groove; 8-Permanent magnet; 9-Reed switch; 10-Water tank;

[0016] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] A water tank sensing control device includes a water tank 10, a contact switch 1, and an integrated control board 2. The contact switch 1 and the integrated control board 2 are mounted on a frame. The integrated control board 2 includes a reed switch control board 3 and a contact connector board 4. A magnetic water level float 5 corresponding to the reed switch control board 3 is provided on the back of the water tank 10. An ultraviolet lamp control head 6 corresponding to the contact connector board 4 is provided on the back of the water tank 10. An ultraviolet lamp is installed inside the water tank 10 and is electrically connected to the ultraviolet lamp control head 6 outside the water tank 10. A contact protrusion is provided on the ultraviolet lamp control head 6. A connecting piece is provided on the contact connector board 4. The contact protrusion and the connecting piece are correspondingly arranged to facilitate connection. A permanent magnet 8 is provided at the lower part of the water level float 5. A reed switch 9 is provided on the reed switch control board 3. The permanent magnet 8 is correspondingly arranged with the reed switch 9. A water level sensing piece corresponding to the water level float 5 is provided on the reed switch control board 3.

[0019] The back of the water tank 10 is provided with a groove 7 above the ultraviolet lamp control head 6, and the water level float 5 is movably disposed in the groove 7.

[0020] The contact pins of the UV lamp control head 6 adopt a gold-plated copper core double spring sheet structure, and the surface of the connecting piece on the contact connector plate 4 is covered with a silver-nickel alloy layer. The spacing between the connecting pieces matches the spacing between the contact pins.

[0021] The water level sensor is an arc-shaped copper sensor with a polytetrafluoroethylene insulating layer covering its surface.

[0022] The radius of curvature of the water level sensor is consistent with the radius of the moving trajectory of the water level float 5.

[0023] When this utility model is in operation, the relay model of the integrated control board 2 is JZC-42F(012-2HS), the contact switch 1 is KCW07, the reed switch 9 is MKH14013, and the UV lamp control head 6 is DC24V. When the lower water tank 10 is pushed into place, the contact switch 1 fixed to the frame is connected, and the whole machine starts working. The UV lamp control head 6 fixed to the back of the water tank 10 is connected to the integrated contact connector plate 4 on the fixed frame, and the UV lamp control head... The contact pin of 6 connects with the connecting piece on the integrated contact connector plate 4 to control the operation of the ultraviolet lamp. The integrated control board 2 controls the relay to turn on at regular intervals to control the ultraviolet lamp to light up. The magnetic water level float 5 fixed on the back of the water tank 10 and the integrated reed switch control board 3 on the fixed frame, the reed switch 9 and the permanent magnet plate 8 are set accordingly, and the water level height is read by magnetic induction. When the water level float 5 with permanent magnet plate 8 is close to the independent reed switch 9, it informs the integrated control board 2 of the change in water level of water tank 10.

[0024] When the water tank 10 is pulled out, the UV lamp control head 6, the contact connector plate 4, the water level float 5, the water level sensor plate, and the UV lamp control circuit are simultaneously disconnected to prevent the hand from touching the contact connector plate 4 after pulling it out, which could cause electric shock.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A water tank sensing control device, characterized in that, The system includes a water tank (10), a contact switch (1), and an integrated control board (2). The contact switch (1) and the integrated control board (2) are mounted on a frame. The integrated control board (2) includes a reed switch control board (3) and a contact connector board (4). A magnetic water level float (5) corresponding to the reed switch control board (3) is provided on the back of the water tank (10). An ultraviolet lamp control head (6) corresponding to the contact connector board (4) is provided on the back of the water tank (10). An ultraviolet lamp is installed inside the water tank (10). Electrically connected to the UV lamp control head (6) outside the water tank (10), the UV lamp control head (6) is provided with contact protrusions, the contact connector plate (4) is provided with connecting pieces, the contact protrusions and connecting pieces are provided in a way that facilitates connection, the water level float (5) is provided with a permanent magnet plate (8) at the bottom, the reed switch (3) is provided with a reed switch (9), the permanent magnet plate (8) is provided with a corresponding reed switch (9), and the reed switch (3) is provided with a water level sensing plate corresponding to the water level float (5).

2. The water tank sensing control device according to claim 1, characterized in that, The back of the water tank (10) is provided with a groove (7) above the ultraviolet lamp control head (6), and the water level float (5) is movably disposed in the groove (7).

3. The water tank sensing control device according to claim 1, characterized in that, The contact pins of the ultraviolet lamp control head (6) adopt a gold-plated copper core double spring sheet structure, and the surface of the connecting piece on the contact connector plate (4) is covered with a silver-nickel alloy layer. The spacing between the connecting pieces matches the spacing between the contact pins.

4. The water tank sensing control device according to claim 3, characterized in that, The water level sensor is an arc-shaped copper sensor with a polytetrafluoroethylene insulating layer covering its surface.

5. A water tank sensing control device according to claim 2, characterized in that, The radius of curvature of the water level sensor is consistent with the radius of the moving trajectory of the water level float (5).