Heating device for intelligent closestool
By adopting a two-way heating and mixed-flow channel design in the smart toilet heating device, the problems of high energy consumption and uneven temperature are solved, achieving a cleaning effect with low energy consumption and high comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN DELONG ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-15
AI Technical Summary
Existing smart toilet heating devices consume a lot of energy and produce uneven temperatures, resulting in poor washing comfort and effectiveness.
The heating tubes, which have a hollow structure on both sides, provide bidirectional heating. The water flow is mixed through an S-shaped channel inside the mixing shell. Combined with a temperature sensor and a control circuit board, the heating power is optimized to achieve consistent water temperature.
It reduces the energy consumption of the heating device and improves the consistency of water temperature, thereby enhancing the comfort and effectiveness of cleaning.
Smart Images

Figure CN224244040U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of intelligent toilet heating equipment, and in particular to a heating device for intelligent toilets. Background Technology
[0002] In the structure of smart toilets, there is generally an instant water heater (heating device), whose main function is to heat cold water (the heating temperature is controllable) so that the water sprayed out for washing the buttocks is warm water. Using warm water not only improves the washing effect, but also makes the user experience better and the washing process more comfortable. However, the main problems with existing heating devices are: high energy consumption in the heating process, mainly due to unidirectional heating of the water path, which generally requires a high-power heating element, thus increasing energy consumption; secondly, uneven water temperature, with the water temperature near the heating element being higher than that further away (with a temperature difference within 5 degrees Celsius), causing a certain temperature difference in the warm water during the washing process, thus affecting the washing feeling and effect. Based on this, we propose a heating device for smart toilets. Utility Model Content
[0003] In view of the shortcomings of the prior art, this utility model provides a heating device for a smart toilet. After improvement, the heating device can effectively solve the problems mentioned in the background art.
[0004] The technical solution of this utility model is as follows:
[0005] A heating device for a smart toilet includes a housing, a first connecting housing, a second connecting housing, and a heating element; the first connecting housing and the second connecting housing are respectively installed on the housing, the first connecting housing and the second connecting housing are fixedly connected, and an installation cavity is formed inside the first connecting housing and the second connecting housing, and the heating element is installed inside the installation cavity;
[0006] A water inlet pipe is installed on the first connecting housing, and a first heating channel is provided inside the heating element, with the water inlet pipe connected to the first heating channel;
[0007] A mixing shell is installed on the second connecting shell, and a water outlet pipe is installed on the mixing shell. A second heating channel is formed between the heating element and the mounting cavity. The first heating channel and the second heating channel are connected in series. The second heating channel is connected in series with the water outlet pipe.
[0008] Furthermore, the heating element is a heating tube with a hollow structure on both sides, which allows the first heating channel and the second heating channel to be connected.
[0009] Furthermore, a helical spring is fixedly installed inside the heating tube, with its two ends extending to the inner left and inner right ends of the heating tube, respectively.
[0010] Furthermore, a first sealing ring is installed between the first connecting housing and the heating tube, and a second sealing ring is installed between the second connecting housing and the heating tube.
[0011] Furthermore, the top of the second connecting shell is provided with a water outlet, which is connected to the mixing shell. The mixing shell is provided with several staggered baffles to form an S-shaped mixing channel.
[0012] Furthermore, a temperature sensor is also fixedly installed at the rightmost end of the mixing housing, located at the mixing channel.
[0013] Furthermore, a grille is fixedly installed on the inner right end of the second connecting housing, and a silicone shell is fixedly installed on the outer right end of the second connecting housing by means of hardware plates.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. The heating tube of this utility model heats water through the first heating channel inside the heating tube for the first heating, and then enters the second heating channel for the second heating. During the two heating processes, bidirectional heating of the water path is formed. A lower power heating tube can be used for heating, or the low power efficiency of the heating tube can be started for heating. In this way, the energy consumption output of this heating device will be greatly reduced.
[0016] 2. By incorporating a mixing shell, the S-shaped mixing channel inside the mixing shell can remix the heated warm water. The warm water after passing through the S-shaped mixing can effectively eliminate the temperature difference of the water, so that the heated water reaches a basically uniform temperature here. The warm water after mixing is then discharged for use, which can effectively enhance the comfort and ensure the effectiveness of use in subsequent cleaning processes. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a cross-sectional view of the present invention;
[0019] Figure 3 This is a schematic diagram of the internal structure of the mixing shell of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of this utility model after the second connecting shell has been disassembled;
[0021] Figure 5This is a first-view structural diagram of the second connecting shell connecting the mixing shell of this utility model;
[0022] Figure 6 This is a second-view structural diagram of the second connecting shell connecting the mixing shell of this utility model;
[0023] Figure 7 This is a third-view structural diagram of the second connecting shell connecting the mixing shell of this utility model.
[0024] In the diagram, 1. Housing; 2. First connecting housing; 3. Second connecting housing; 4. Heating element; 5. Mounting cavity; 6. Water inlet pipe; 7. First heating channel; 8. Mixing flow housing; 9. Water outlet pipe; 10. Second heating channel; 11. Helical spring; 12. First sealing ring; 13. Second sealing ring; 14. Water outlet; 15. Baffle; 16. Mixing flow channel; 17. Temperature sensor; 18. Grille; 19. Hardware plate; 20. Silicone shell; 21. Control circuit board. Detailed Implementation
[0025] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings:
[0026] like Figure 1-7 As shown,
[0027] A heating device for a smart toilet includes a housing 1, a first connecting housing 2, a second connecting housing 3, and a heating element 4. The first connecting housing 2 and the second connecting housing 3 are respectively mounted on the housing 1 and are fixedly connected. An installation cavity 5 is formed between the first connecting housing 2 and the second connecting housing 3, and the heating element 4 is installed inside the installation cavity 5. A water inlet pipe 6 is mounted on the first connecting housing 2, and a first heating channel 7 is provided inside the heating element 4. The water inlet pipe 6 communicates with the first heating channel 7. A mixing housing 8 is mounted on the second connecting housing 3, and a water outlet pipe 9 is mounted on the mixing housing 8. A second heating channel 10 is formed between the heating element 4 and the installation cavity 5, and the first heating channel 7 and the second heating channel 10 communicate with each other. The second heating channel 10 communicates with the water outlet pipe 9. In this embodiment, the heating device is also provided with a control circuit board 21, which is electrically connected to the heating element 4 and signal-connected to the temperature sensor 17. The temperature sensor 17 can sense the temperature of the water inside the mixing shell 8 and then transmit the temperature information signal to the control circuit board 21. The control circuit board 21 controls the operation of the heating element 4 (when the temperature of the water inside the mixing shell 8 is lower than the set range value, the heating element 4 can be controlled to work at a higher power; when the temperature of the water inside the mixing shell 8 is higher than the set range value, the heating element 4 can be controlled to work at a lower power).
[0028] In a preferred embodiment, the heating element 4 is a heating tube with a hollow structure on both sides, allowing the first heating channel 7 and the second heating channel 10 to be connected. The heating tube used in this application has a structure in which a spiral heating tube is wound around the outside of a heat-conducting tube. During heating, the spiral heating tube can transfer heat to the heat-conducting tube. The first heating channel 7 is located inside the heat-conducting tube, and the second heating channel 10 is located outside the heat-conducting tube, thereby enabling the heating of water in the first heating channel 7 and the second heating channel 10.
[0029] In a preferred embodiment, a helical spring 11 is fixedly installed inside the heating tube, with its two ends extending to the inner left and inner right ends of the heating tube, respectively. By providing the helical spring 11, water flows in a spiral pattern along the helical spring 11 when flowing through the first heating channel 7, thereby increasing the contact area between the water and the heating tube and improving heating efficiency.
[0030] In a preferred embodiment, a first sealing ring 12 is installed between the first connecting housing 2 and the heating tube, and a second sealing ring 13 is installed between the second connecting housing 3 and the heating tube. By providing the first sealing ring 12, water can be prevented from overflowing onto the first connecting housing 2, and by providing the second sealing ring 13, water can be prevented from overflowing onto the second connecting housing 3, thereby allowing water to be heated and flow smoothly.
[0031] In a preferred embodiment, the top of the second connecting housing 3 is provided with a water outlet 14, which is connected to the mixing housing 8. The mixing housing 8 has several staggered baffles 15 inside, forming an S-shaped mixing channel 16. It can be understood that the water outlet 14 allows water to enter the mixing housing 8 through the second connecting housing 3 for mixing. The S-shaped mixing channel 16 inside the mixing housing 8 can further mix the heated water. The warm water after S-shaped mixing effectively eliminates temperature differences, ensuring the heated water reaches a relatively uniform temperature. The mixed warm water is then discharged for use, effectively enhancing comfort and ensuring its effectiveness in subsequent cleaning processes.
[0032] In a preferred embodiment, a temperature sensor 17 is also fixedly installed at the rightmost end of the mixing housing 8, located at the mixing channel 16. By providing the temperature sensor 17, the temperature of the water to be discharged can be effectively sensed, thereby effectively controlling the operation of the heating element 4 through the control circuit board 21.
[0033] In a preferred embodiment, a grille 18 is fixedly installed on the right side of the interior of the second connecting housing 3, and a silicone shell 20 is fixedly installed on the exterior of the right side of the second connecting housing 3 via a hardware plate 19. It is understood that since this heating device is a sealed heating container, during thermal expansion and contraction, air pressure or hydraulic pressure will cause expansion and compression of the device. Although the compression amplitude is small, over time it can easily cause deformation or even breakage of the device, posing a certain safety hazard. Therefore, with the silicone shell 20 installed, when air pressure or hydraulic pressure causes expansion and compression, the silicone shell 20 can deform to cope with the pressure change, thereby ensuring the safe use of the device.
[0034] The working principle of this utility model is as follows: When working, water enters through the inlet pipe 6, then enters the first heating channel 7 inside the heating element 4 for the first heating, and then is discharged along the right end of the heating element 4 to the second heating channel 10 for the second heating. After the heating is completed, it is discharged through the outlet 14 into the mixing shell 8. After mixing through the mixing channel 16, it is finally discharged through the outlet pipe 9.
[0035] It should be noted that the main problem with the existing technology is that the heating process has high energy consumption, mainly due to the unidirectional heating of the water circuit, which generally requires a high-power heating element, thus increasing energy consumption.
[0036] Therefore, with the improvements made in this application, the water will be heated for the first time through the first heating channel 7 inside the heating tube, and then enter the second heating channel 10 for the second heating. During the two heating processes, bidirectional heating of the water path is formed. A lower power heating tube can be used for heating, or the low power efficiency of the heating tube can be activated for heating. In this way, the energy consumption output of this heating device will be greatly reduced.
[0037] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A heating device for a smart toilet, characterized in that: It includes a housing, a first connecting housing, a second connecting housing, and a heating element; the first connecting housing and the second connecting housing are respectively mounted on the housing, the first connecting housing and the second connecting housing are fixedly connected, and an installation cavity is formed inside the first connecting housing and the second connecting housing, and the heating element is installed inside the installation cavity; A water inlet pipe is installed on the first connecting housing, and a first heating channel is provided inside the heating element, with the water inlet pipe connected to the first heating channel; A mixing shell is installed on the second connecting shell, and a water outlet pipe is installed on the mixing shell. A second heating channel is formed between the heating element and the mounting cavity. The first heating channel and the second heating channel are connected in series. The second heating channel is connected in series with the water outlet pipe.
2. The heating device for a smart toilet according to claim 1, characterized in that: The heating element is a heating tube, which has a hollow structure on the left and right sides, so that the first heating channel and the second heating channel are connected.
3. The heating device for a smart toilet according to claim 2, characterized in that: A helical spring is fixedly installed inside the heating tube, with its two ends extending to the inner left and inner right ends of the heating tube, respectively.
4. The heating device for a smart toilet according to claim 3, characterized in that: A first sealing ring is installed between the first connecting housing and the heating tube, and a second sealing ring is installed between the second connecting housing and the heating tube.
5. A heating device for a smart toilet according to claim 4, characterized in that: The top of the second connecting shell is provided with a water outlet, which is connected to the mixing shell. The mixing shell is provided with several staggered baffles to form an S-shaped mixing channel.
6. A heating device for a smart toilet according to claim 5, characterized in that: A temperature sensor is also fixedly installed at the rightmost end of the mixing housing, located in the mixing channel.
7. A heating device for a smart toilet according to claim 6, characterized in that: A grille is fixedly installed inside the right end of the second connecting housing, and a silicone shell is fixedly installed outside the right end of the second connecting housing by means of hardware plates.