Intelligent closestool

By installing a radar monitor in a gap created at the edge of the smart toilet seat, the problem of sensor signal transmission being affected by the shell material is solved, resulting in improved aesthetics, reduced costs, and a wide sensing range.

CN223497292UActive Publication Date: 2025-10-31LIXIL BUILDING MATERIALS MFG (SUZHOU) CORP
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Patent Information

Application Number
CN202422790988.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-10-31
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

The sensor signal transmission of existing smart toilets is greatly affected by the shell material, resulting in sensing errors and affecting the appearance. An additional window needs to be opened to transmit the signal, which also affects the aesthetics.

Method used

The radar monitor is installed on the toilet body by creating a gap on the edge of the toilet seat. The angle between the signal surface and the toilet surface is 52° to 55°, which avoids obstruction, expands the range of materials to choose from, and does not require an additional signal output window.

Benefits of technology

It improves the aesthetics and production efficiency of smart toilets, reduces costs, expands the range of material choices, and has a wide sensing range.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an intelligent closestool which comprises a closestool body provided with a wall body installation face. The toilet seat is pivoted with the toilet body and comprises a toilet seat body, a pivoting part is arranged on one side, close to the wall body mounting surface, of the toilet seat body, the pivoting part is pivoted with the toilet seat body, and the edge, on the same side as the pivoting part, of the toilet seat body sinks in the direction away from the wall body mounting surface to form a gap; the radar monitor is installed on the closestool body and located in the gap, and the signal face of the radar monitor is exposed out of the gap; on one hand, the radar monitor is high in signal penetrating capacity, and selection limitation on materials of the toilet lid is small; on the other hand, a window for signal output of the radar monitor does not need to be additionally formed in the rear cover, the attractiveness of the intelligent closestool is greatly improved, and the wide application range is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of bathroom technology, and in particular to a smart toilet. Background Technology

[0002] Toilets are frequently used household appliances. Their function and structure make them prone to accumulating dirt and grime, leading to bacterial growth. Most toilets on the market require manual contact with the toilet seat to open or close. Furthermore, the flushing mechanism often needs to be manually activated or controlled. This manual contact with the toilet seat and the flushing mechanism makes using the toilet inconvenient and also poses hygiene risks.

[0003] Smart toilets enable contactless opening of the toilet lid and seat. This is based on human body recognition; the smart toilet issues a corresponding action command when a person approaches or leaves. To accurately detect a person's approach or departure, the smart toilet is equipped with a sensing range; the lid-opening command is only issued when the target is within the sensing range.

[0004] However, many smart toilets currently use pyroelectric sensors and infrared sensors. The signal strength of both types is significantly affected by the material of the outer casing. The signal strength is greatly reduced as it passes through the casing, leading to sensing errors. Therefore, some toilets currently require a separate window on the casing for signal transmission, which negatively impacts the overall appearance of the smart toilet.

[0005] Therefore, how to improve the appearance of smart toilets while ensuring the effective transmission of sensor signals is a technical problem that urgently needs to be solved. Utility Model Content

[0006] The problem solved by this utility model is to provide a smart toilet that, on the one hand, utilizes the strong signal penetration capability of the radar monitor and is less affected by the toilet seat material; on the other hand, it eliminates the need for a separate window on the back cover for signal output, greatly improving the aesthetics of the smart toilet.

[0007] To address the aforementioned problems, this utility model provides a smart toilet, comprising: a toilet body having a wall mounting surface; a toilet seat pivotally connected to the toilet body, the toilet seat comprising a toilet seat body having a pivot portion on the side of the toilet seat body near the wall mounting surface, the pivot portion forming a pivot connection with the toilet body, and the edge of the toilet seat body on the same side as the pivot portion being recessed in a direction away from the wall mounting surface to form a gap; and a radar monitor installed on the toilet body, the radar monitor being located within the gap, the gap exposing the signal surface of the radar monitor.

[0008] Optionally, the angle between the signal surface of the radar monitor and the surface of the toilet body ranges from 52° to 55°.

[0009] Optionally, there are two pivot joints, which are distributed on both sides of the gap, and the toilet seat body and the pivot joints are integrally formed.

[0010] Optionally, there is one pivot joint, which is located on the side of the toilet seat body closest to the wall mounting surface. The toilet seat body on both sides of the pivot joint is recessed in the direction away from the wall mounting surface to form a gap.

[0011] Optionally, it also includes: a base plate fixed to the toilet body, the base plate being connected to a power source, and a radar monitor located on the toilet body between the base plate and the toilet seat body.

[0012] Optionally, it also includes: a nozzle located on the toilet body, the water outlet of the nozzle extending into the bowl of the toilet body, a base plate and a radar monitor located on the same side of the nozzle, and the base plate controlling the opening and closing of the nozzle.

[0013] Optionally, the distance from the signal transmission point on the signal surface to the inclined surface of the toilet body is L; the distance between the signal surface and the toilet seat body in a direction parallel to the toilet body surface is d; the angle between the signal surface and the surface of the toilet body is α; the maximum thickness of the toilet seat body in front of the signal surface is h; and the minimum vertical detection angle of the radar detector is β, satisfying the following conditions:

[0014] Optionally, it also includes: a protective box fixed to the toilet body, with the radar monitor installed inside the protective box.

[0015] Optionally, the protective box includes an outer shell and a lug plate connected to the side of the outer shell. The lug plate has screw holes and is fixed to the toilet body by bolts. The angle between the surface of the lug plate and the side of the outer shell is complementary to the angle between the signal surface and the surface of the toilet body.

[0016] Optionally, the radar monitor includes an antenna board, a control board, and a microwave radar, with the microwave radar fixed to the control board, which has a communication pin interface.

[0017] Compared with the prior art, the technical solution of this utility model has the following advantages:

[0018] In one technical solution of this utility model, the edge surface of the middle part of the toilet seat is recessed in the first direction relative to the edge surface of the pivot part, thus forming a gap. The gap exposes part of the surface of the toilet body. At this time, a radar monitor is installed on the toilet body exposed by the gap, and the gap also exposes the signal surface of the radar monitor. On the one hand, the radar monitor has strong signal penetration, which reduces the material restrictions on the toilet seat and expands the range of materials that can be selected for the toilet seat. On the other hand, the edge surface of the toilet seat is recessed in the first direction relative to the edge surface of the pivot part, forming a gap. The gap exposes the surface of the toilet body, and the radar monitor is installed on the toilet body corresponding to the gap, with the gap exposing the signal surface of the radar monitor. This eliminates the need to open a window on the back cover for the radar monitor's signal output, improving the aesthetics of the smart toilet and reducing production costs while increasing efficiency.

[0019] Furthermore, the angle between the signal surface of the radar monitor and the surface of the toilet body is between 52° and 55°, so that the radar monitor signal will not be blocked regardless of whether the toilet seat is open (flipped) or closed (not flipped), thus providing a wide sensing range. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a smart toilet in one embodiment of the present invention;

[0021] Figure 2 for Figure 1 The image contains only a right view of the top surface of the toilet body;

[0022] Figure 3 A simplified diagram showing the installation relationship between the toilet seat, radar monitor, and toilet body;

[0023] Figure 4 This is a signal distribution diagram of the radar monitor when the toilet seat is closed.

[0024] Figure 5 for Figure 4 The main view;

[0025] Figure 6 This is a signal distribution diagram of the radar monitor when the toilet seat is opened;

[0026] Figure 7 for Figure 6 The main view;

[0027] Figure 8 This is a schematic diagram of the radar monitor in one embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram of the protective box in one embodiment of the present invention;

[0029] Figure 10This is a schematic diagram of the toilet seat in another embodiment of the present invention. Detailed Implementation

[0030] The aesthetics of smart toilets still need improvement.

[0031] Based on this, the present invention provides a smart toilet that utilizes the edge surface of the middle part of the toilet seat (the toilet seat body between the pivot parts) to form a gap by recessing it relative to the edge surface of the pivot part in the direction away from the wall mounting surface. This gap exposes part of the surface of the toilet body. At this time, a radar monitor is installed on the toilet body exposed by the gap, and the gap also exposes the signal surface of the radar monitor. On the one hand, the radar monitor has strong signal penetration, which reduces the material restrictions on the toilet seat and expands the range of toilet seat material choices. On the other hand, the edge surface of the toilet seat body is recessed relative to the edge surface of the pivot part in the first direction to form a gap, exposing the surface of the toilet body. The radar monitor is installed on the toilet body corresponding to the gap, and the gap exposes the signal surface of the radar monitor. This eliminates the need to open a window on the back cover for the radar monitor's signal output, improving the aesthetics of the smart toilet and reducing production costs while increasing efficiency.

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0033] Figure 1 This is a schematic diagram of the structure of a smart toilet in one embodiment of the present invention; Figure 2 for Figure 1 The image contains only a right view of the top surface of the toilet body; Figure 3 A simplified diagram showing the installation relationship between the toilet seat, radar monitor, and toilet body; Figure 4 This is a signal distribution diagram of the radar monitor when the toilet seat is closed. Figure 5 for Figure 4 The main view; Figure 6 This is a signal distribution diagram of the radar monitor when the toilet seat is opened; Figure 7 for Figure 6 The main view; Figure 8 This is a schematic diagram of the radar monitor in one embodiment of the present invention; Figure 9 This is a schematic diagram of the protective box in one embodiment of the present invention; Figure 10 This is a schematic diagram of the toilet seat in another embodiment of the present invention.

[0034] First, please refer to Figure 1 and Figure 2 and Figure 8 The smart toilet 100 includes a toilet body 101, a toilet seat 102, and a radar monitor 103.

[0035] In this embodiment, the toilet seat 102 is pivotally connected to the toilet body 101. The toilet seat 102 can be flipped relative to the toilet body 101. The toilet seat 102 includes a toilet seat body 102b, which has a pivot portion 102a that is pivotally connected to the toilet body 101. The toilet body 101 has a wall mounting surface 101a for mounting the toilet body 101 on the wall. The toilet seat body 102b located on the side of the pivot portion 102a is recessed in a direction away from the wall mounting surface 101a to form a gap 108, which exposes the surface of the toilet body 101.

[0036] In this embodiment, there are two pivot portions 102a. A pair of pivot portions 102a are distributed on the same side of the toilet seat body 102 near the wall mounting surface 101a, and a pair of pivot portions 102a are distributed on both sides of the gap 108.

[0037] In some embodiments, please refer to Figure 10 The number of pivot parts 102a can also be one. The pivot part 102a is located on the side of the toilet seat body 102b that is close to the wall mounting surface 101a. The toilet seat body 102b on both sides of the pivot part 102a is recessed in the direction away from the wall mounting surface 101a, forming a gap 108.

[0038] In this embodiment, the radar monitor 103 is installed on the toilet body 101 corresponding to the gap 108. The gap 108 exposes the signal surface of the radar monitor 103, so there is no need to open a window on the back cover for the signal output of the radar monitor 103. This improves the aesthetics of the smart toilet 100 and reduces production costs while increasing efficiency.

[0039] In this embodiment, the signal surface of the radar monitor 103 is tilted upwards to avoid the toilet seat 102 blocking the signal of the radar monitor 103 when it is closed.

[0040] In this embodiment, the radar monitor 103 automatically senses the user's approach and activates various functions of the toilet, providing a more convenient and comfortable user experience. The radar monitor 103 integrates the different functions of multiple sensors, which greatly saves costs and improves the aesthetics of the smart toilet 100.

[0041] In this embodiment, the toilet seat body 102b and the pivot part 102a are integrally formed, which greatly improves the aesthetics of the smart toilet 100.

[0042] In this embodiment, please refer to Figure 2 The angle α between the signal surface of the radar monitor 103 and the surface of the toilet body 101 ranges from 52° to 55°; within this range, regardless of whether the toilet seat 102 is open (flipped, please refer to [reference]), the signal will be detected. Figure 6 and Figure 7Or turn off (without flipping the reference) Figure 4 and Figure 5 None of them will block the signal of the radar monitor 103, and the sensing range is wide, making it widely applicable.

[0043] In this embodiment, a toilet seat 104 is also included (please refer to...). Figure 4 The toilet seat 104 and the toilet body 101 are also pivotally connected, and the toilet seat 104 and the pivot 102a are detachably connected.

[0044] In this embodiment, the radar monitor 103 has strong signal penetration capability, which reduces the restrictions on the choice of materials for the toilet seat 104. At the same time, the radar monitor 103 is installed in the recess of the toilet seat body 102b, so there is no need to open an additional through hole on the toilet seat body 102b for transmitting the radar monitor 103 signal. This improves the aesthetics of the smart toilet, reduces the manufacturing process, is convenient and quick, and has a wide range of applications.

[0045] In this embodiment, please refer to Figure 3 , Figure 3 The middle arrow represents the signal line emitted at the minimum vertical detection angle. The signal surface of radar monitor 103 is tilted upwards. The distance L between the signal emission point on the signal surface and the surface of toilet body 101 is the inclined plane distance. The distance d between the signal surface of radar monitor 103 and toilet seat body 102b in the direction parallel to the surface of toilet body 101 is d. The angle α between the signal surface of radar monitor 103 and the surface of toilet body 101 is α. The maximum thickness h of toilet seat body 102b in front of the signal surface is α. The minimum vertical detection angle β of radar monitor 103 is β. Then, satisfying the following conditions... This allows the radar monitor 103 to be used with toilet seats 102 of various thicknesses, making it widely applicable.

[0046] In this embodiment, the maximum vertical detection angle of the radar monitor 103 is less than 90°, so when the toilet seat 102 is opened (see reference...). Figure 6 It will not block the signal 103d of the radar monitor 103.

[0047] Specifically, the vertical detection angle of the radar monitor 103 ranges from -37° to 33°, and the horizontal detection angle of the radar monitor 103 ranges from -44° to 42°.

[0048] In this embodiment, refer to Figure 1 It also includes: a base plate 105 fixed on the toilet body 101, the base plate 105 being connected to a power source, and a radar monitor 103 located on the base plate 105 and the toilet body 101 on the rear side (near the wall mounting surface) of the toilet seat body 102b.

[0049] In this embodiment, the radar monitor 103 is electrically connected to the substrate 105.

[0050] In this embodiment, the substrate 105 is powered by a power supply, and then controls the operation of various components, including the radar monitor 103.

[0051] Please continue to refer to this. Figure 1 It includes: a nozzle 106 located on the toilet body 101, the water outlet of the nozzle 106 extending into the toilet bowl of the toilet body 101, a base plate 105 and a radar monitor 103 located on the same side of the nozzle 106, and the base plate 105 controlling the opening and closing of the nozzle 106.

[0052] In addition to the radar monitor 103, nozzle 106, toilet seat 102, and toilet body 101, a typical smart toilet 100 also includes a toilet seat heating unit, a light module, a deodorizing unit, a flushing unit, and an automatic opening and closing control unit. The baseboard 105 processes and sends control signals to ensure the operation of each component. Specifically, the radar monitor 103 can detect whether a person is approaching the toilet and entering the sensing area, or is in the sensing area, and transmits the relevant information to the baseboard 105. Upon receiving the information, the baseboard 105 controls the opening and closing of the nozzle 106, the operation of the toilet seat heating unit, the opening and closing of the light module, the deodorizing unit to perform the corresponding deodorizing function, the flushing unit to flush the toilet, and the automatic opening and closing control unit to control the opening and closing of the toilet seat 102 and toilet lid 104, etc.

[0053] Please refer to the reference. Figure 1 and Figure 9 It also includes: a protective box 107 fixed to the toilet body 101, and a radar monitor 103 installed inside the protective box 107.

[0054] In this embodiment, the protective box 107 is installed at a certain angle on the surface of the toilet body 101, so that the radar monitor 103 can determine the limb position information of the person in front of the toilet.

[0055] In this embodiment, the protective box 107 includes an outer shell 107a and an ear plate 107b connected to the side of the outer shell 107a. The ear plate 107b has screw holes and is fixed to the toilet body 101 by bolts.

[0056] The included angle γ between the surface of the ear plate 107b and the side of the outer shell 107a is complementary to the included angle α, i.e., γ+α=180°.

[0057] Please refer to Figure 8The radar monitor 103 includes an antenna board, a control board 103a, and a microwave radar 103b. The microwave radar 103b is fixed on the control board 103a, and the control board 103a has a communication pin interface 103c.

[0058] In this embodiment, the radar monitor 103 uses FMCW waveforms combined with the MCU's proprietary radar signal processing and built-in intelligent presence sensing algorithm to detect targets and gestures within a designated area and report the results. The data signal generated by the radar chip communicating with the MCU undergoes simple radar signal processing and is then sent to the MCU control unit. The MCU control unit analyzes the acquired data and the actual DFFT data pattern, begins processing the algorithm and gesture sensing algorithm, obtains the radar data result, and sends it via serial port to control the toilet to flush.

[0059] In this embodiment, the radar monitor 103 uses the propagation of electromagnetic waves to measure distance. The continuous pulse emitted by the transmitter is modulated into a frequency-modulated continuous wave, and the frequency changes continuously over time. The received signal also has a continuously changing frequency modulation characteristic. The distance between the two signals is calculated based on the time difference and phase difference between the transmitted and received signals.

[0060] In this embodiment, the control board 103a has a reserved programming port and at least four communication pin interfaces 103c, facilitating the connection and debugging of the serial port tool. Programs can be downloaded using programmers such as J-Link and CMSIS-DAP. When using a 5V power supply and connecting the hardware and the serial port tool, the connection method is as follows: connect the hardware's TX pin to the serial port tool's RX pin, and vice versa. Connect jumpers to the 5V power supply and GND. If using other serial port tools, a 5V power supply is also required. Ensure that GigaDevice.GDE230x_DFP.1.0.1.pack or a later version of the CMSIS pack and the serial port tool software assistant or host computer software are installed.

[0061] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A smart toilet, characterized in that, include: The toilet body has a wall mounting surface; A toilet seat is pivotally connected to the toilet body. The toilet seat includes a toilet seat body. The toilet seat body has a pivot portion on the side near the wall mounting surface. The pivot portion is pivotally connected to the toilet body. The edge of the toilet seat body on the same side as the pivot portion is recessed in a direction away from the wall mounting surface to form a gap. A radar monitor is installed on the toilet body, the radar monitor is located in the gap, and the gap exposes the signal surface of the radar monitor.

2. The smart toilet as described in claim 1, characterized in that, The angle between the signal plane of the radar monitor and the surface of the toilet body ranges from 52° to 55°.

3. The smart toilet as described in claim 1, characterized in that, The number of pivot joints is two, and the two pivot joints are distributed on both sides of the gap. The toilet seat body and the pivot joints are integrally formed.

4. The smart toilet as described in claim 1, characterized in that, The number of the pivot joints is one, and the pivot joint is located on the side of the toilet seat body close to the wall mounting surface. The toilet seat body on both sides of the pivot joint is recessed in the direction away from the wall mounting surface to form the gap.

5. The smart toilet as described in claim 1, characterized in that, Also includes: A base plate fixed to the toilet body, the base plate being connected to a power source, and a radar monitor located on the toilet body between the base plate and the toilet seat body.

6. The smart toilet as described in claim 5, characterized in that, Also includes: A nozzle is located on the toilet body, with the water outlet of the nozzle extending into the toilet bowl of the toilet body. The base plate and the radar monitor are located on the same side of the nozzle, and the base plate controls the opening and closing of the nozzle.

7. The smart toilet as described in claim 1, characterized in that, The distance L between the signal transmission point on the signal surface and the inclined plane of the toilet body surface is L; the distance d between the signal surface and the toilet seat body in a direction parallel to the toilet body surface is d; the angle α between the signal surface and the toilet body surface is α; the maximum thickness h of the toilet seat body in front of the signal surface is h; and the minimum vertical detection angle β of the radar detector satisfies the following conditions:

8. The smart toilet as described in claim 2, characterized in that, Also includes: A protective box is fixed to the toilet body, and the radar monitor is installed inside the protective box.

9. The smart toilet as described in claim 8, characterized in that, The protective box includes an outer shell and a lug plate connected to the side of the outer shell. The lug plate has screw holes and is fixed to the toilet body by bolts. The angle between the surface of the lug plate and the side of the outer shell is complementary to the angle between the signal surface and the surface of the toilet body.

10. The smart toilet as described in claim 1, characterized in that, The radar monitor includes an antenna board, a control board, and a microwave radar. The microwave radar is fixed on the control board, which has a communication pin interface.

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