Electric heating towel rack with multi-sensor device
By installing pressure and humidity sensors on the electric towel rack, the system automatically detects whether there are items to be dried on the rack and controls the heating, solving the problems of poor user experience and energy waste caused by manual control in existing technologies, and achieving automated heating and energy-saving effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-06
AI Technical Summary
Existing smart electric towel racks cannot automatically detect whether there are items to be dried on the towel rack, requiring manual control of the heating, resulting in a poor user experience and the possibility of misjudgment causing the heating element to turn on accidentally.
The device employs a multi-sensor system, including pressure and humidity sensors, to automatically control the switching of the heating element by detecting whether items are placed on the towel rack and the humidity of those items, thus achieving automatic heating.
It improves the user experience, prevents the heating element from turning on accidentally, saves energy, and achieves automated control of items to be heated.
Smart Images

Figure CN223969053U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of towel rack technology, and more specifically, to an electric heating towel rack with a multi-sensor device. Background Technology
[0002] Electric towel racks are a common bathroom accessory used to dry towels or bath towels, preventing them from becoming damp for extended periods and thus preventing the growth of harmful bacteria such as mold, bacteria, and mites.
[0003] With the advancement of technology, the heating process of electric towel racks is also developing towards intelligence, using temperature sensors and motherboards to control the power supply to the heating wires, thereby controlling the heating temperature.
[0004] Patent document CN221205236U discloses an intelligent electric towel rack, comprising: an electronic temperature control board, which includes an encoder, a TFT color display, a main board, a microphone, a speaker, a heating wire, and a temperature sensor. The encoder controls the start and stop of the machine's operation, the display screen allows selection of all built-in encoder functions and their start / stop. The TFT color display shows the status of the towel rack. The main board controls various functions and maintains a constant temperature via frequency conversion. The microphone receives sound signals, the speaker plays Bluetooth music and supports built-in voice AI control, the heating wire provides heat to the towel rack, and the temperature sensor senses the internal temperature of the towel rack. However, this technical solution cannot detect whether there are items to be dried on the towel rack, and the heating requires manual control, resulting in a poor user experience.
[0005] Therefore, it is necessary to propose an electric heated towel rack with a multi-sensor device to solve the problems existing in the prior art. Utility Model Content
[0006] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.
[0007] To address the aforementioned issues, this utility model provides an electric towel rack with a multi-sensor device, comprising two parallel side frames, at least two support rods fixedly disposed between the two side frames, an electric heating element and a temperature sensor disposed within the support rods, and a humidity sensor and a pressure sensor fixedly disposed on the upper part of the support rods.
[0008] Preferably, the support rod is S-shaped, with pressure sensors fixedly installed on the upper part of the three crossbars of the support rod, and humidity sensors fixedly installed on the sides of the three crossbars of the support rod.
[0009] Preferably, the support rod and the frame are tubular structures and interconnected.
[0010] Preferably, at least one first mounting hole is provided on the upper part of each crossbar of the support rod, and the pressure sensor is installed in the first mounting hole;
[0011] At least one second mounting hole is provided on the side of each crossbar of the support rod, and the humidity sensor is installed in the second mounting hole.
[0012] Preferably, both the bottom surfaces of the first mounting hole and the second mounting hole are provided with connecting holes, which communicate with the inner cavity of the support rod.
[0013] Preferably, both the humidity sensor and the pressure sensor are waterproof sensors.
[0014] Preferably, the humidity sensor is fixedly installed in the second mounting hole using sealant, and the pressure sensor is fixedly installed in the first mounting hole using sealant.
[0015] Preferably, caps are provided at the top and bottom ends of the frame for sealing.
[0016] Preferably, the frame and support rod are made of stainless steel.
[0017] Preferably, at least two connecting plates are provided on the back of the frame along the length direction, and the connecting plates are fixedly mounted on the wall.
[0018] Compared with the prior art, the present invention has at least the following beneficial effects:
[0019] The electric towel rack with multi-sensor device described in this utility model uses a pressure sensor to determine whether there are items placed on the towel rack and a humidity sensor to determine whether the items placed on the towel rack need to be heated. It can automatically heat the items placed on the towel rack, improving the user experience and preventing the heating element from turning on accidentally, thus saving energy.
[0020] The electric towel rack with multi-sensor device described in this utility model has other advantages, objectives and features that will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this utility model. Attached Figure Description
[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0022] Figure 1 This is a schematic diagram of the structure of the electric towel rack with a multi-sensor device disclosed in this utility model;
[0023] Figure 2 This is a cross-sectional structural schematic diagram of the support rod disclosed in this utility model;
[0024] Figure 3 This is a schematic diagram of the structure of the adjustment component disclosed in this utility model;
[0025] Figure 4 This is a schematic diagram of the connecting shaft disclosed in this utility model;
[0026] Figure 5 This is a schematic diagram of the slider disclosed in this utility model;
[0027] Figure 6 This is a cross-sectional structural diagram of the groove disclosed in this utility model. Detailed Implementation
[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.
[0029] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.
[0030] like Figures 1-2 As shown, an electric towel rack with a multi-sensor device includes two parallel side frames 1, at least two support rods 2 fixedly arranged between the two side frames 1, an electric heating tube and a temperature sensor are arranged inside the support rods 2, and a humidity sensor 3 and a pressure sensor 4 are fixedly arranged on the upper part of the support rods 2.
[0031] Furthermore, the support rod 2 is S-shaped, and pressure sensors 4 are fixedly installed on the upper part of the three crossbars of the support rod 2, while humidity sensors 3 are fixedly installed on the sides of the three crossbars of the support rod 2.
[0032] Furthermore, the support rod 2 and the frame 1 are tubular structures and are interconnected.
[0033] Furthermore, at least one first mounting hole 5 is opened on the upper part of each crossbar of the support rod 2, and the pressure sensor 4 is installed in the first mounting hole 5;
[0034] Each crossbar of the support rod 2 has at least one second mounting hole 6 on its side, and the humidity sensor 3 is installed in the second mounting hole 6.
[0035] Furthermore, a connecting hole 7 is provided on the bottom surface of both the first mounting hole 5 and the second mounting hole 6, and the connecting hole 7 communicates with the inner cavity of the support rod 2.
[0036] Furthermore, both the humidity sensor 3 and the pressure sensor 4 are waterproof sensors.
[0037] Furthermore, the humidity sensor 3 is fixedly installed in the second mounting hole 6 with sealant, and the pressure sensor 4 is fixedly installed in the first mounting hole 5 with sealant.
[0038] Furthermore, caps are installed at the upper and lower ends of frame 1 for sealing.
[0039] Furthermore, the frame 1 and the support rod 2 are made of stainless steel.
[0040] Furthermore, at least two connecting plates 8 are provided on the back of the frame 1 along the length direction, and the connecting plates 8 are fixedly installed on the wall.
[0041] The working principle of the above technical solution:
[0042] At least two support rods 2 are fixedly installed between two parallel frame frames 1. The support rods 2 are S-shaped, and the support rods 2 and frame frames 1 are tubular structures that are interconnected. Frame frames 1 and support rods 2 can be made of stainless steel. The connection between frame frames 1 and support rods 2 can be welded. Laser welding can be used, which has advantages such as high precision, small deformation, and high weld strength, making it suitable for welding stainless steel materials for towel racks. The support rods 2 are S-shaped, and a heating tube is fixedly installed inside the crossbar of the support rod 2. The heating tube can be a resistance heating tube, which uses resistance wire to generate heat, converting electrical energy into heat energy and transferring it to the support rod 2. A temperature sensor is fixedly installed on the inner wall of the support rod 2. A pressure sensor 4 is fixedly installed in the first mounting hole 5 at the top of the crossbar of the support rod 2, and a humidity sensor 4 is fixedly installed in the second mounting hole 6 on the side of the crossbar of the support rod 2. Sensor 3, the heating element, temperature sensor, humidity sensor 3, and pressure sensor 4 are all electrically connected to the control mainboard, which can be located within the frame 1. When a wet towel is hung on the support rod 2, the pressure sensor 4 detects an increase in pressure data. Upon receiving this increased pressure data, the control mainboard compares it to a preset pressure threshold. If the pressure exceeds the preset threshold, the control mainboard compares the humidity data transmitted by the humidity sensor 3 with a preset humidity threshold. If the humidity data also exceeds the preset humidity threshold, the control mainboard turns on the heating element to heat the rod. If the humidity data received by the control mainboard is lower than the preset humidity threshold, the control mainboard turns off the heating element. If the real-time data transmitted by the pressure sensor is lower than the preset pressure threshold, it may be due to an accidental drop of a towel or other item; in this case, the control mainboard turns off the heating element. Based on the temperature data transmitted by the temperature sensor, the control mainboard adjusts the current flowing through the heating element to control the temperature of the support rod 2 within a certain range. The control board adjusts the heating time of the heating element based on sensor data, which is an existing technology. For example, patent CN119606240A discloses an electric towel rack based on graphene heating. The control board controls the switching of the heating element based on whether the data detected by the humidity sensor exceeds a preset humidity threshold. Similarly, the control board can control the switching of the heating element based on the data detected by the pressure sensor and humidity sensor. This will not be elaborated further here. However, the above technical solution only uses the humidity data detected by the humidity sensor to determine whether there are items to be dried placed on the towel rack, which may cause misjudgment. This is because in the environment where the towel rack is used, even when there are no wet towels or other items placed, the humidity in the bathroom will increase during showering or other operations, thus increasing the risk of misjudgment.
[0043] The control board is electrically connected to the power supply. The power cord can pass through the cap at the bottom of the frame 1 and be sealed to prevent moisture from entering the frame 1 and the support rod 2. The humidity sensor 3 and the pressure sensor 4 are both waterproof sensors and are fixed in the first mounting hole and the second mounting hole respectively with sealant. The connection hole 7 is for the wires connecting the humidity sensor 3 and the pressure sensor 4 to pass through the inner cavity of the support rod 2. Waterproof sealant is used to prevent moisture from entering the support rod 2.
[0044] When installing the heating element on the S-shaped support rod, first heat-draw the stainless steel into a semi-circular S-shape, place the heating element inside the crossbar of the support rod 2, connect the heating elements in series and lead the wires out to the support rod 2, merge the two semi-circular S-shapes together, use laser welding to weld the support rod 2 into shape, and then weld the support rod 2 to the frame 1.
[0045] The heating temperature of the towel rack is controlled at around 55 degrees Celsius.
[0046] The upper and lower ends of frame 1 are sealed with tube caps. The tube caps are made of rubber or silicone material and are slightly larger than the inner cavity of frame 1. The tube caps are pressed into the tube openings at the upper and lower ends of frame 1 to seal and prevent moisture from entering frame 1.
[0047] The towel rack is fixed to the wall by the connecting plate 8 set on the back of the frame 1. The connecting plate 8 can be fixedly connected to the frame 1 or movably connected to the frame 1.
[0048] The beneficial effects of the above technical solution are as follows:
[0049] The electric towel rack with multi-sensor device described in this utility model uses a pressure sensor to determine whether there are items placed on the towel rack and a humidity sensor to determine whether the items placed on the towel rack need to be heated. It can automatically heat the items placed on the towel rack, improving the user experience and preventing the heating element from turning on accidentally, thus saving energy.
[0050] In one embodiment, such as Figures 3-6As shown, the frame 1 is connected to the connecting plate 8 via an adjustment assembly. The adjustment assembly includes a first column 9 and a second column 10. Two connecting plates 8 are fixedly installed on the back of the first column 9, and the two connecting plates 8 are arranged along the length direction of the first column 9. The second column 10 is fixedly connected to the back of the frame 1. Slide grooves 11 are opened on the side walls of the first column 9 and the second column 10. A slider 12 is slidably installed in the slide groove 11. The centers of the first connecting rod 13 and the second connecting rod 14 are connected by a connecting shaft 15 to form an X-shape. The first connecting rod 13 and the second connecting rod 14 are rotatably connected to the connecting shaft 15. The upper end of the first connecting rod 13 is rotatably connected to the upper end of the first column 9, and the lower end of the first connecting rod 13 is rotatably connected to the slider 12 on the second column 10. The upper end of the second connecting rod 14 is rotatably connected to the upper end of the second column 10, and the lower end of the second connecting rod 14 is rotatably connected to the slider 12 on the first column 9.
[0051] A limiting groove 18 is provided on one side wall of the slider 12 that contacts the slide groove 11. The bottom surface of the limiting groove 18 is spherical. A ball 17 is slidably arranged in the limiting groove 18. The hole on the bottom surface of the limiting groove 18 is smaller than the diameter of the ball 17. When the slider 12 slides in the slide groove 11, arc-shaped grooves 21 are respectively provided at both ends of the trajectory of the ball 17. The ball 17 is engaged in the arc-shaped grooves 21. A sealing plate 20 is detachably provided at the opening of the limiting groove 18. The surface of the sealing plate 20 located in the limiting groove 18 is fixedly connected to one end of the spring 19. The other end of the spring is fixedly connected to the ball 17. The sealing plate 20 and the limiting groove 18 can be connected by threads.
[0052] A rotating shaft 16 is fixedly installed on the side of the slider 12 that is parallel to the plane containing the first connecting rod 13 and the second connecting rod 14. The rotating shaft 16 is rotatably connected to the lower end of the first connecting rod 13 or the second connecting rod 14.
[0053] The working principle of the above technical solution:
[0054] When an electric towel rack is installed on the wall, it is inconvenient to put on and take off towels if the rack is too close to the wall, and it takes up too much bathroom space and is prone to collisions if it is too far from the wall. Therefore, an adjustment component is set between the connecting plate 8 and the frame 1 to adjust the distance between the electric towel rack and the wall. When taking on or taking off towels, the towel rack can be pulled out a certain distance from the wall for easy access. After taking on or taking off towels, the towel rack can be pushed closer to the wall to save bathroom space and prevent collisions.
[0055] When the towel rack is pulled out, the second column 10 moves away from the first column 9, and the slider 12 slides upward to the upper end of the groove 11. When the towel rack is pushed back, the second column 10 moves closer to the first column 9, and the slider 12 slides downward to the lower end of the groove 11. The length of the groove 11 can be set as needed to adjust the maximum distance between the second column 10 and the first column 9. When the slider 12 is at the uppermost or lowermost end of the groove 11, the ball 17 is stuck in the arc-shaped groove 21 under the pressure of the spring 19, so that the towel rack can remain stable in the pulled-out or pushed-back position. When adjustment is needed, pull or push the towel rack forcefully, and the side wall of the arc-shaped groove 21 squeezes the ball 17, causing the ball 17 to squeeze the spring 19 and be pressed back into the limiting groove 18, thus adjusting the distance between the towel rack and the wall.
[0056] 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.
[0057] 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.
[0058] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.
Claims
1. An electric towel rack with a multi-sensor device, characterized in that, The application relates to a temperature and humidity sensor, which comprises two parallel frames (1), at least two supporting rods (2) are fixedly arranged between the two frames (1), an electric heating pipe and a temperature sensor are arranged in the supporting rods (2), a humidity sensor (3) and a pressure sensor (4) are fixedly arranged on the upper portion of the supporting rods (2).
2. The electric towel warmer with multi-sensor device according to claim 1, characterized in that, The supporting rods (2) are S-shaped, the upper portions of three horizontal rods of the supporting rods (2) are fixedly provided with the pressure sensors (4), and the side surfaces of the three horizontal rods of the supporting rods (2) are fixedly provided with the humidity sensors (3).
3. The electric towel warmer with multi-sensor device according to claim 2, characterized in that, The supporting rods (2) and the frames (1) are tubular structures and are communicated with each other.
4. The electric towel warmer with multi-sensor device according to claim 3, characterized in that, At least one first mounting hole (5) is formed in the upper portion of each horizontal rod of the supporting rods (2), and the pressure sensor (4) is arranged in the first mounting hole (5). At least one second mounting hole (6) is formed in the side surface of each horizontal rod of the supporting rods (2), and the humidity sensor (3) is arranged in the second mounting hole (6).
5. The electric towel warmer with multi-sensor device according to claim 4, characterized in that, The bottom surfaces of the first mounting hole (5) and the second mounting hole (6) are provided with connecting holes (7) which are communicated with the inner cavities of the supporting rods (2).
6. The electric towel warmer with multi-sensor device according to claim 5, characterized in that The humidity sensor (3) and the pressure sensor (4) are waterproof sensors.
7. The electric towel warmer with multi-sensor device according to claim 6, characterized in that The humidity sensor (3) is fixedly arranged in the second mounting hole (6) through sealing glue, and the pressure sensor (4) is fixedly arranged in the first mounting hole (5) through sealing glue.
8. The electric towel warmer with multi-sensor device according to claim 7, characterized in that Pipe caps are sealingly arranged at the upper and lower ends of the frame (1).
9. The electric towel warmer with multi-sensor device according to claim 1, characterized in that, The frame (1) and the supporting rods (2) are made of stainless steel.
10. The electric towel warmer with multi-sensor device according to claim 1, characterized in that, At least two connecting plates (8) are arranged on the back surface of the frame (1) along the length direction, and the connecting plates (8) are fixedly arranged on the wall surface.
Citation Information
Patent Citations
Electric heating towel rack based on graphene heating
CN119606240A
Intelligent electric heating towel rack
CN221205236U