Heating device for instant-heating direct water dispenser

Abstract

The utility model relates to the technical field of water dispensers, in particular to a heating device for an instant-heating direct water dispenser, which comprises a water inlet pipe and a water outlet pipe, one end of the water inlet pipe is fixedly connected with a buffer tank, a first one-way valve is fixedly mounted at the top of the buffer tank, and a stopper integrally formed with the buffer tank is arranged in the buffer tank and is of a trapezoidal structure. The bottom, away from the water inlet pipe, of the buffer tank is fixedly connected with a spiral water pipe, the surface of the spiral water pipe is sleeved with a ceramic heating piece, and gaps between the ceramic heating piece and the spiral water pipe are filled with filler. The water heater has the advantages that the ceramic heating piece is not in contact with a water source, damage caused by electric leakage due to aging of the ceramic heating piece can be effectively avoided, unused cooling water heated in the heat preservation water tank can be actively discharged, the situation that the water outlet speed is delayed when the water heater is used next time is avoided, and a user can also be prevented from drinking repeatedly heated water.

Description

Technical Field

[0001] The utility model relates to the technical field of water drinking machines, in particular to a heating device for an instant hot water drinking machine. Background Art

[0002] Instant hot water dispenser is a convenient device that can directly provide warm water or hot water without waiting for the water temperature to rise. In order to provide the water temperature required by users, instant hot water dispensers usually use a heating device, and the heating device can quickly heat the water to a suitable temperature according to the needs of users, ensuring that users can get satisfactory drinking water at any time. In addition, the heating device can also kill bacteria and microorganisms in the water to ensure the hygiene and safety of drinking water. By heating water, the bacteria in the water can be effectively eliminated, the quality of drinking water can be improved, and the health of users can be protected. In general, the heating device in the instant hot water dispenser can provide hot water to meet the user's demand for hot water, and can also ensure the hygiene and safety of drinking water through high-temperature sterilization. It provides users with a convenient and healthy way of drinking water, and is an indispensable part of modern life.

[0003] To this end, a utility model patent with publication number CN214048517U discloses a heating device for a direct drinking water machine, including a direct drinking water machine housing, a first insulation box and a second insulation box are installed in the housing, a water outlet is opened on the lower side of the first insulation box, a first valve is installed at the water outlet, the second insulation box is located above the first insulation box, the second insulation box is communicated with the first insulation box through a pipeline, a second valve is installed on the pipeline, the second insulation box is provided with a water inlet, a third valve is installed at the water inlet, a heating unit for heating is arranged in the second insulation box, the heating unit includes a switch for controlling whether the heating unit is running or not, and the heating device for the direct drinking water machine prevents the direct drinking water machine from repeatedly heating drinking water, and facilitates hot water supply.

[0004] However, the heating unit of the patent is in direct contact with drinking water. After long-term use, the heating unit may leak electricity due to aging, which may lead to safety accidents. In addition, the hot water in the first insulation box of the patent will cool down when it is not used for a long time. If you want to use it again, you need to manually empty the cold water in the first insulation box, which is more troublesome. Utility Model Content

[0005] The purpose of the utility model is to provide a heating device for an instant hot drinking water machine to address the deficiencies of the above-mentioned prior art, which can effectively avoid leakage accidents caused by aging, and can automatically discharge cold water that has cooled down after being heated but not used, thereby improving the user experience.

[0006] The technical solution adopted by the utility model is a heating device for an instant hot drinking water machine, comprising a water inlet pipe and a water outlet pipe, one end of the water inlet pipe is fixedly connected to a buffer box, a first one-way valve is fixedly installed on the top of the buffer box, a block integrally formed with the buffer box is provided in the buffer box, the block is a trapezoidal structure, a spiral water pipe is fixedly connected to the bottom of the buffer box away from the water inlet pipe, a ceramic heating plate is sleeved on the surface of the spiral water pipe, the gap between the ceramic heating plate and the spiral water pipe is filled with filler, one end of the spiral water pipe is fixedly connected to an insulated water tank, and the water outlet pipe is fixedly installed on a side of the insulated water tank away from the spiral water pipe.

[0007] Preferably, a second one-way valve is provided on the top of the insulated water tank, a temperature sensor is provided in the insulated water tank, a drain pipe is fixedly installed below the insulated water tank, and a solenoid valve is provided in the drain pipe.

[0008] Preferably, a plurality of second one-way valves and temperature sensors are provided, and the plurality of second one-way valves and temperature sensors are evenly distributed in the thermal insulation water tank.

[0009] Preferably, a waste water tank is fixedly connected to the bottom of the drain pipe.

[0010] Preferably, the spiral water pipe is fixedly connected to the buffer tank and the insulation water tank via threads.

[0011] Preferably, sealing rings are installed at the threaded connections between the spiral water pipe and the buffer tank and the insulation water tank.

[0012] The utility model is simple and convenient to use. It only needs to connect the water inlet with the external water source. The external water source will flow into the buffer box along the water inlet and be blocked by the block. At this time, the water flows will gather together and rise slowly. At this time, the gas in the water will be discharged from the water body and then discharged to the outside of the buffer box through the first one-way valve. When the height of the water flow converges higher than the block, it will flow into the spiral water pipe along the slope of the block. At this time, the ceramic heating plate can be started to heat the water flow in the spiral water pipe, and the heated water flow will flow into the insulated water tank. At this time, the high-temperature steam generated by the heated water flow will be discharged by the second one-way valve to avoid excessive pressure in the insulated water tank. The water outlet pipe can be connected to the faucet to use hot water. When it is not used for a long time, the temperature sensor will check the hot water in the insulated water tank. When the hot water in the insulated water tank is cooled, the solenoid valve will be started. At this time, the cold water in the insulated water tank will flow into the waste water tank along the drain pipe.

[0013] Compared with the prior art, the utility model has the beneficial effect that the ceramic heating plate does not contact the water source, which can effectively reduce the probability of injury when the ceramic heating plate leaks electricity, and can automatically discharge the cooled water in the insulation water tank, making it convenient for heating next time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a heating device for an instant hot drinking water machine proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of a heating device for an instant hot drinking water machine proposed by the utility model;

[0016] Figure 3 It is an enlarged view of point A of the present utility model.

[0017] Description of the symbols in the figure

[0018] 1. Water inlet pipe; 12. Water outlet pipe; 13. Spiral water pipe; 2. Buffer tank; 21. First one-way valve; 22. Block; 3. Ceramic heating plate; 4. Insulated water tank; 41. Second one-way valve; 42. Temperature sensor; 43. Drain pipe; 44. Solenoid valve; 5. Wastewater tank. DETAILED DESCRIPTION

[0019] Figure 1 , Figure 2 and Figure 3The utility model schematically shows a heating device for an instant hot drinking water machine, including a water inlet pipe 1 and a water outlet pipe 12. One end of the water inlet pipe 1 is fixedly connected to a buffer box 2. A first one-way valve 21 is fixedly installed on the top of the buffer box 2. A stopper 22 integrally formed with the buffer box 2 is provided in the buffer box 2. The stopper 22 is a trapezoidal structure. The bottom of the buffer box 2 away from the water inlet pipe 1 is fixedly connected to a spiral water pipe 13. A ceramic heating plate 3 is sleeved on the surface of the spiral water pipe 13. The ceramic heating plate 3 can be AC5663 or other models. , the modified model can effectively avoid the occurrence of leakage accidents. The gap between the ceramic heating plate 3 and the spiral water pipe 13 is filled with fillers. The fillers can be made of materials with good thermal conductivity and non-conductive properties such as silicone. One end of the spiral water pipe 13 is fixedly connected to the insulation water tank 4. The outlet pipe 12 is fixedly installed on the side of the insulation water tank 4 away from the spiral water pipe 13. A second one-way valve 41 is provided on the top of the insulation water tank 4. A temperature sensor 42 is provided in the insulation water tank 4. The temperature sensor 42 can be OHR-WS40R and other models. The modified model With a communication interface, it is convenient to communicate with the electromagnetic valve 44. A drain pipe 43 is fixedly installed under the insulated water tank 4. A solenoid valve 44 is arranged in the drain pipe 43. The electromagnetic valve 44 can adopt the LFSV-F model and the like. The coil of this model is an integrally sealed design, which can effectively prevent water and has a long service life. The second one-way valve 41 and the temperature sensor 42 are both provided with multiple ones. The multiple second one-way valves 41 can effectively discharge the water vapor in the insulated water tank 4, and the multiple temperature sensors 42 can evenly obtain the water level in the insulated water tank 4. The second one-way valve 41 and the temperature sensor 42 are evenly distributed in the insulated water tank 4. The temperature sensor 42 and the solenoid valve 44 can be connected through a single-chip microcomputer of model HSFO8 to facilitate communication with each other. The bottom of the drain pipe 43 is fixedly connected to the waste water tank 5. The spiral water pipe 13 is fixedly connected to the buffer tank 2 and the insulated water tank 4 through threads. Sealing rings are installed at the threaded connections between the spiral water pipe 13 and the buffer tank 2 and the insulated water tank 4. The sealing rings can be made of rubber or silicone with good sealing effect and waterproof materials.

[0020] In actual use, it is only necessary to introduce external water through the water inlet pipe 1. The external water source will flow into the buffer box 2 along the water inlet pipe 1 and be blocked by the block 22 in the buffer box 2. At this time, the water flow will converge on one side of the block 22, thereby slowing down the water flow speed, and thus facilitating the discharge of gas in the water flow. The gas in the buffer box 2 will be discharged by the first one-way valve 21. When the height of the water flow converges higher than the block 22, it will flow into the spiral water pipe 13 along the slope of the block 22. At this time, the ceramic heating plate 3 can be started to heat the water flow in the spiral water pipe 13, and the spiral water pipe 13 can effectively increase the water flow in The residence time in the ceramic heating plate 3 is improved to ensure the heating effect, and the heated water will flow into the insulated water tank 4. At this time, the user can use the heated hot water by connecting it to a water dispenser at the water outlet pipe 12 or setting a faucet, and the water vapor generated by heating in the insulated water tank 4 will also be discharged by the second one-way valve 41 to avoid excessive pressure in the insulated water tank 4. When the user has not used it for a long time, the hot water in the insulated water tank 4 will cool down and be detected by the temperature and humidity sensor. At this time, the solenoid valve will be opened, and then the water will flow along the drain pipe 43 into the waste water tank 5, which is convenient for the user to deal with it centrally.

[0021] The first one-way valve 21 and the second one-way valve 41 can both be of NG6 type, etc. This type can effectively prevent external air from entering the interior and exhaust internal air.

Claims

1. A heating device for an instant hot drinking water machine, comprising a water inlet pipe (1) and a water outlet pipe (12), characterized in that: One end of the water inlet pipe (1) is fixedly connected to a buffer box (2), a first non-return valve (21) is fixedly installed on the top of the buffer box (2), a block (22) formed integrally with the buffer box (2) is provided in the buffer box (2), the block (22) is a trapezoidal structure, a spiral water pipe (13) is fixedly connected to the bottom of the buffer box (2) away from the water inlet pipe (1), a ceramic heating plate (3) is sleeved on the surface of the spiral water pipe (13), and a filler is filled in the gap between the ceramic heating plate (3) and the spiral water pipe (13), one end of the spiral water pipe (13) is fixedly connected to an insulation water tank (4), and the water outlet pipe (12) is fixedly installed on a side of the insulation water tank (4) away from the spiral water pipe (13).

2. A heating device for an instant hot drinking water machine according to claim 1, characterized in that: A second one-way valve (41) is provided on the top of the thermal insulation water tank (4), a temperature sensor (42) is provided in the thermal insulation water tank (4), a drainage pipe (43) is fixedly installed below the thermal insulation water tank (4), and a solenoid valve (44) is provided in the drainage pipe (43).

3. A heating device for an instant hot drinking water machine according to claim 2, characterized in that: A plurality of second one-way valves (41) and temperature sensors (42) are provided, and the plurality of second one-way valves (41) and temperature sensors (42) are evenly distributed in the thermal insulation water tank (4).

4. A heating device for an instant hot drinking water machine according to claim 2 or 3, characterized in that: The bottom of the drainage pipe (43) is fixedly connected to a waste water tank (5).

5. A heating device for an instant hot drinking water machine according to claim 1, 2 or 3, characterized in that: The spiral water pipe (13) is fixedly connected to the buffer tank (2) and the thermal insulation water tank (4) via threads.

6. A heating device for an instant hot drinking water machine according to claim 4, characterized in that: The spiral water pipe (13) is fixedly connected to the buffer tank (2) and the thermal insulation water tank (4) via threads.

7. A heating device for an instant hot drinking water machine according to claim 1, 2, 3 or 6, characterized in that: Sealing rings are installed at the threaded connections between the spiral water pipe (13) and the buffer tank (2) and the insulation water tank (4).

8. The heating device for instant hot drinking water machine according to claim 4, characterized in that: Sealing rings are installed at the threaded connections between the spiral water pipe (13) and the buffer tank (2) and the insulation water tank (4).

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