Instant heating module of instant heating water dispenser

Abstract

The utility model discloses a kind of instant heating module of instant water heater, including module support, heating body assembly, water pump, thyristor and electric control mainboard, heating body assembly, water pump and electric control mainboard are respectively fixed on module support, the outlet end of water pump is connected with the import end of heating body assembly, electric control mainboard controls the heating power of heating body assembly by electric connection mode control thyristor, still include first quick connection connecting piece, second quick connection connecting piece and water-cooling radiator, first quick connection connecting piece is connected in the import end of water pump, the import end of first quick connection connecting piece is connected with second quick connection connecting piece by water-cooling radiator, water-cooling radiator is contacted with thyristor;Advantage is to be able to realize quick connection, high -efficient heat dissipation, compact, heat rapidly and long service life.

Description

Technical Field

[0001] This utility model relates to the field of water dispenser heating technology, and in particular to an instant heating module for an instant hot water dispenser. Background Technology

[0002] As a core component of modern drinking water equipment, the instant heating module of an instant water dispenser plays a vital role in providing safe, healthy, and convenient drinking water. With the improvement of people's living standards, the demands for drinking water quality and experience are increasing. Instant water dispensers have become indispensable household appliances in homes, offices, and public areas. The efficient, stable, and intelligent instant heating module not only directly affects the user's drinking experience but also relates to the equipment's energy consumption, lifespan, and safety performance. Therefore, the development of advanced instant heating modules for instant water dispensers has significant practical value and market demand.

[0003] Existing instant hot water dispenser modules primarily emphasize heating efficiency and temperature control accuracy in their technical design. These modules typically use heating wires or heating tubes as heating elements, combined with a water tank to heat the water inside. A water pump then delivers the hot water to the outlet. Due to the traditional heating element and water tank design, these modules are relatively large, occupying significant installation space and hindering miniaturization and compact design. In terms of water system construction, traditional instant hot water modules generally use silicone tubing or other thermoplastic pipes for connection and secure them with standard connectors. Furthermore, these modules are equipped with a basic electronic control system, including temperature sensors and control circuitry, to monitor and regulate water temperature and provide a temperature display function.

[0004] However, existing technologies have two main drawbacks: First, in terms of water circuit connections, the traditional silicone tube connection method is not only prone to absorbing odors and breeding bacteria during long-term use, affecting water quality and user experience, but also poses safety hazards such as weak connections, easy aging, and easy leakage; Second, in terms of heat dissipation control, especially the heat dissipation problem of the thyristor element has not been effectively solved. Most instant heating modules use natural heat dissipation or simple heat sinks, which have limited heat dissipation effect. This leads to the thyristor element being prone to overheating during long-term operation, which not only affects the temperature control accuracy and heating efficiency, but also greatly shortens the service life of the element and the entire equipment.

[0005] These problems severely restrict the improvement of the performance and reliability of instant hot water dispensers, and there is an urgent need for an instant hot water module that adopts quick connection technology and efficient heat dissipation solution. Summary of the Invention

[0006] The purpose of this utility model is to provide an instant heating module for an instant hot water dispenser, which can achieve quick connection, efficient heat dissipation, compact size, rapid heating and long service life.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an instant hot water dispenser module, comprising a module bracket, a heating element assembly, a water pump, a silicon controlled rectifier (SCR), and an electronic control mainboard. The heating element assembly, the water pump, and the electronic control mainboard are respectively fixed on the module bracket. The outlet end of the water pump is connected to the inlet end of the heating element assembly. The electronic control mainboard controls the SCR to adjust the heating power of the heating element assembly via an electrical connection. The module also includes a first quick-connect connector, a second quick-connect connector, and a water-cooled radiator. The first quick-connect connector is connected to the inlet end of the water pump. The inlet end of the first quick-connect connector is connected to the second quick-connect connector via the water-cooled radiator. The water-cooled radiator is in contact with the SCR.

[0008] Preferably, the heating element assembly includes a heating element bracket, an inlet water temperature sensor, an outlet water temperature sensor, and an electric heating element. The heating element bracket is fixed on the module bracket and has a heating cavity inside. The electric heating element is disposed in the heating cavity and is electrically connected to the electronic control motherboard. The inlet water temperature sensor and the outlet water temperature sensor are respectively disposed at the inlet end and the outlet end of the heating element bracket. The inlet water temperature sensor and the outlet water temperature sensor are electrically connected to the electronic control motherboard for real-time monitoring of water temperature.

[0009] Preferably, the heating element assembly further includes an automatic reset protector, which is connected in series with the heating element and electrically connected to the main control board. The automatic reset protector is used to automatically disconnect the heating circuit when the water temperature exceeds a preset temperature value and automatically reconnect when the temperature drops to a safe range.

[0010] Preferably, the volume of the heating chamber is in the range of 25-35 ml.

[0011] Preferably, the water pump is fixed to the module bracket by an elastic clamp. The elastic clamp includes two semi-circular fixing parts and two fixing ears. The two fixing ears are fixed to the module bracket at intervals and are located on both sides of the water pump. The semi-circular fixing parts are fixed to the upper end of the corresponding fixing ears and surround the housing of the water pump to provide elastic clamping force.

[0012] Preferably, the water pump is a diaphragm water pump.

[0013] Preferably, the first quick-connect fitting is a two-way elbow quick-connect fitting, and the second quick-connect fitting is a two-partition quick-connect fitting.

[0014] Preferably, both the inlet water temperature sensor and the outlet water temperature sensor are NTC type temperature sensors.

[0015] Compared with existing technologies, the advantages of this utility model are as follows: The instant hot water dispenser's instant heating module design integrates heating and heat dissipation systems, simultaneously achieving the dual functions of water heating and electronic component cooling through the water circuit. Water first enters through the second quick-connect fitting, passes through the water-cooled radiator, and then flows to the first quick-connect fitting before entering the water pump. At this point, the water absorbs the heat generated by the thyristor during operation, both cooling the thyristor to prevent overheating damage and raising the water temperature, achieving pre-recovery of energy. Subsequently, the water flows through the water pump outlet into the heating element assembly for heating, ultimately outputting hot water at the desired temperature.

[0016] This design has significant advantages: Firstly, it uses a quick-connect method to replace the traditional silicone tube connection, completely solving the problems of silicone tubes absorbing odors and affecting water quality, as well as loose connections and easy leakage. Secondly, it cleverly utilizes the heat dissipation of the thyristor, improving energy efficiency and ensuring reliable heat dissipation of the thyristor, thus extending the service life of the equipment. In addition, its compact structural design greatly reduces the installation space requirements, optimizes the water circuit layout, and makes maintenance more convenient. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention in its disassembled state;

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] In the diagram, 1. Module bracket; 2. Heating element assembly; 3. Water pump; 4. SCR; 5. Electronic control motherboard; 6. First quick-connect connector; 7. Second quick-connect connector; 8. Water-cooled radiator; 9. Heating element bracket; 10. Inlet water temperature sensor; 11. Outlet water temperature sensor; 12. Heating element; 13. Heating chamber; 14. Automatic reset protector; 15. Elastic clamp; 16. Semi-circular fixing part; 17. Fixing ear. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] Example 1: As shown in the figure, an instant hot water dispenser module includes a module bracket 1, a heating element assembly 2, a water pump 3, a silicon controlled rectifier (SCR) 4, and an electronic control main board 5. The heating element assembly 2, the water pump 3, and the electronic control main board 5 are respectively fixed on the module bracket 1. The outlet end of the water pump 3 is connected to the inlet end of the heating element assembly 2. The electronic control main board 5 controls the SCR 4 to adjust the heating power of the heating element assembly 2 through an electrical connection. The module also includes a first quick-connect connector 6, a second quick-connect connector 7, and a water-cooled radiator 8. The first quick-connect connector 6 is connected to the inlet end of the water pump 3. The inlet end of the first quick-connect connector 6 is connected to the second quick-connect connector 7 through the water-cooled radiator 8. The water-cooled radiator 8 is in contact with the SCR 4.

[0024] Example 2: As shown in the figure, unlike Example 1, the heating element assembly 2 includes a heating element bracket 9, an inlet water temperature sensor 10, an outlet water temperature sensor 11, and an electric heating element 12. The heating element bracket 9 is fixed on the module bracket 1 and has a heating cavity 13 inside. The electric heating element 12 is disposed in the heating cavity 13 and is electrically connected to the electronic control main board 5. The inlet water temperature sensor 10 and the outlet water temperature sensor 11 are respectively disposed at the inlet end and the outlet end of the heating element bracket 9. The inlet water temperature sensor 10 and the outlet water temperature sensor 11 are electrically connected to the electronic control main board 5 for real-time monitoring of water temperature.

[0025] In the above structure, the heating chamber 13 inside the heating element bracket 9 houses the electric heating element 12. Power output is regulated by the main control board 5, improving heating efficiency and water temperature stability, extending equipment lifespan, and enhancing drinking water safety. A key technical feature of this design is the presence of temperature sensors at both the inlet and outlet, forming a dual-point temperature control structure. The inlet water temperature sensor 10 monitors the inlet water temperature, and the outlet water temperature sensor 11 monitors the outlet water temperature; both sensors transmit temperature data to the main control board 5.

[0026] This design enables the main control board 5 to acquire temperature change gradient information, calculate the required heating power and water flow rate, and adjust the conduction angle of the thyristor 4 and the heating intensity of the heating element 12. This control system improves temperature control accuracy, keeps the outlet water temperature error within a small range, meets the user's precise water temperature requirements, and the heating chamber 13 has a compact volume design, reducing the water residence time in the chamber and improving the heating response speed.

[0027] In this embodiment, the heating element assembly 2 also includes an automatic reset protector 14, which is connected in series with the heating element 12 and electrically connected to the main control board 5. It is used to automatically disconnect the heating circuit when the water temperature exceeds the preset temperature value and automatically restore the connection when the temperature drops to a safe range.

[0028] When the internal water temperature of the heating element assembly 2 exceeds the preset safe temperature value due to abnormal conditions, the automatic reset protector 14 will respond immediately, automatically disconnect the circuit connection with the heating element 12, cut off the power supply to the heating element 12, thereby stopping the heating process and preventing the heating element 12 from running dry.

[0029] In this embodiment, the volume of the heating chamber 13 ranges from 25 to 35 ml.

[0030] This volumetric design significantly shortens the residence time of water in the heating chamber 13 and allows the water to flow through the heating chamber 13 at a faster speed, thereby significantly improving the heat transfer efficiency and enabling the water temperature to rise rapidly in a short time. In addition, the smaller chamber volume reduces energy loss during the heating process, reduces heat loss to the surrounding environment, improves energy utilization efficiency, reduces power consumption, and also allows the entire heating element assembly 2 to be reduced in size, facilitating the miniaturization design of the overall thermal module and saving installation space.

[0031] Example 3: As shown in the figure, unlike Example 2, the water pump 3 is fixed to the module bracket 1 by an elastic clamp 15. The elastic clamp 15 includes two semi-circular fixing parts 16 and two fixing ears 17. The two fixing ears 17 are fixed to the module bracket 1 at intervals and are located on both sides of the water pump 3. The semi-circular fixing parts 16 are fixed to the upper end of the corresponding fixing ears 17 and surround the outer shell of the water pump 3 to provide elastic clamping force.

[0032] This design allows the elastic clamp 15 to apply a uniform elastic clamping force to the water pump 3, firmly fixing the water pump 3 without damaging the water pump 3 housing due to overtightening. The working principle of the elastic clamp 15 is to use the restoring force generated by the elastic deformation of the material to stabilize the water pump 3 in the predetermined position, while allowing minor vibrations to be absorbed by the elastic material, effectively reducing the transmission of vibrations generated by the water pump 3 during operation to the entire module. This installation method is characterized by convenient installation and disassembly; maintenance personnel only need to loosen the fixing lug 17 to remove the water pump 3, greatly improving maintenance efficiency.

[0033] In this embodiment, pump 3 is a diaphragm pump.

[0034] The working principle of a diaphragm pump is that the eccentric wheel driven by the motor causes the diaphragm to deform periodically, creating a pressure difference to achieve the suction and discharge of water. This design completely isolates the water flow system from the drive system, so that the water only comes into contact with the diaphragm and the pump chamber, without any contact with the motor. This structural design ensures water quality safety and prevents water from being contaminated by motor oil or metal wear particles. The diaphragm pump also has self-priming capability, enabling it to start and work normally even with a small amount of air in the pipeline, thus improving the reliability of system startup.

[0035] In this embodiment, the first quick-connect connector 6 is a two-way elbow quick-connect connector, and the second quick-connect connector 7 is a two-partition quick-connect connector.

[0036] The two-point elbow quick-connect fitting is installed at the inlet end of the water pump 3. Its special elbow design allows the water pipeline to be laid out reasonably in a limited space, avoiding the problem of increased flow resistance and poor water flow caused by excessive bending of the pipeline. The two partition plate quick-connect fittings provide a stable connection support point by combining with the partition on the module bracket 1, which enhances the structural stability of the entire water system.

[0037] Both quick-connect fittings feature an insert-type connection structure, allowing pipe connections to be completed without tools, greatly simplifying the installation and disassembly process and improving maintenance efficiency. The internal sealing ring design of the quick-connect fittings ensures the tightness of the connection, completely solving the problem of easy leakage in traditional silicone tube connections. At the same time, this standardized fitting design makes component replacement more convenient, eliminating the need to replace the entire water system and reducing maintenance costs.

[0038] It should be noted that this quick-connect fitting is made of food-grade materials, will not produce any odor, and ensures water quality safety, making it superior to traditional silicone tube connection methods.

[0039] In this embodiment, both the inlet water temperature sensor 10 and the outlet water temperature sensor 11 are NTC type temperature sensors.

[0040] NTC sensors are small in size and simple in structure, making them easy to integrate into limited installation spaces. They also have good water resistance and sealing properties, making them suitable for long-term immersion in water environments. These sensors exhibit good linearity and stability within the commonly used temperature range of 0-100℃, meeting the temperature control accuracy requirements of instant water dispensers. Compared with other types of temperature sensors, NTC sensors are relatively low in cost while possessing sufficient accuracy and reliability, making the product both cost-effective and practical.

[0041] The NTC sensor operates on the principle of a thermistor; its resistance decreases as temperature rises, exhibiting high sensitivity and rapid response, enabling it to accurately capture water temperature changes in real time. With one NTC sensor at each inlet and outlet, a complete temperature monitoring system is formed, allowing the main control board 5 to simultaneously acquire inlet and outlet water temperature data, calculate the temperature difference, and control the heating power.

[0042] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. An instant heating module for an instant hot water dispenser, comprising a module bracket, a heating element assembly, a water pump, a silicon controlled rectifier (SCR), and an electronic control mainboard, wherein the heating element assembly, the water pump, and the electronic control mainboard are respectively fixed on the module bracket, the outlet end of the water pump is connected to the inlet end of the heating element assembly, and the electronic control mainboard controls the SCR to adjust the heating power of the heating element assembly via an electrical connection, characterized in that: It also includes a first quick-connect fitting, a second quick-connect fitting, and a water-cooled radiator. The first quick-connect fitting is connected to the inlet end of the water pump. The inlet end of the first quick-connect fitting is connected to the second quick-connect fitting through the water-cooled radiator. The water-cooled radiator is in contact with the silicon controlled rectifier (SCR).

2. The instant hot water module of an instant hot water dispenser according to claim 1, characterized in that: The heating element assembly includes a heating element bracket, an inlet water temperature sensor, an outlet water temperature sensor, and an electric heating element. The heating element bracket is fixed on the module bracket and has a heating cavity inside. The electric heating element is disposed in the heating cavity and is electrically connected to the electronic control motherboard. The inlet water temperature sensor and the outlet water temperature sensor are respectively disposed at the inlet and outlet ends of the heating element bracket and are electrically connected to the electronic control motherboard for real-time monitoring of water temperature.

3. The instant hot water module of an instant hot water dispenser according to claim 2, characterized in that: The heating element assembly also includes an automatic reset protector, which is connected in series with the heating element and electrically connected to the main control board. The automatic reset protector is used to automatically disconnect the heating circuit when the water temperature exceeds the preset temperature value and automatically restore the connection when the temperature drops to a safe range.

4. The instant hot water module of an instant hot water dispenser according to claim 2, characterized in that: The volume of the heating chamber ranges from 25 to 35 milliliters.

5. The instant hot water module of an instant hot water dispenser according to claim 1, characterized in that: The water pump is fixed to the module bracket by an elastic clamp. The elastic clamp includes two semi-circular fixing parts and two fixing ears. The two fixing ears are fixed to the module bracket at intervals and are located on both sides of the water pump. The semi-circular fixing parts are fixed to the upper end of the corresponding fixing ears and surround the housing of the water pump to provide elastic clamping force.

6. The instant hot water module of an instant hot water dispenser according to claim 1, characterized in that: The water pump is a diaphragm water pump.

7. The instant hot water module of an instant hot water dispenser according to claim 1, characterized in that: The first quick-connect fitting is a two-point elbow quick-connect fitting, and the second quick-connect fitting is a two-partition quick-connect fitting.

8. The instant hot water module of an instant hot water dispenser according to claim 2, characterized in that: Both the inlet water temperature sensor and the outlet water temperature sensor are NTC type temperature sensors.

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