Wireless electric toothbrush
Wireless electric toothbrushes, through their toothbrush-shaped design and the high-frequency vibration of sonic motors, solve the problem that existing electric toothbrushes cannot clean the upper and lower teeth simultaneously, achieving efficient and automated teeth cleaning and wireless charging, thus improving the efficiency of brushing teeth.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGZHOU YONGCHUANG BIOTECHNOLOGY CO LTD
- Filing Date
- 2026-04-27
- Publication Date
- 2026-06-09
AI Technical Summary
Existing electric toothbrushes are difficult to clean both upper and lower teeth efficiently at the same time, and require holding the handle while using them, leaving no free hand for other tasks, resulting in low brushing efficiency.
A wireless electric toothbrush has been designed that simultaneously cleans both the upper and lower rows of teeth using a toothbrush shaped like a dental brace. It achieves deep cleaning by utilizing the high-frequency vibration of a concave silicone toothbrush and a sonic motor, and automates operation through a touch switch and wireless charging technology, freeing up your hands.
It enables simultaneous cleaning of both upper and lower teeth, freeing up your hands, improving brushing efficiency and effectiveness, and also offers the convenience of wireless charging.
Smart Images

Figure CN122163345A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electric toothbrush technology, specifically to wireless electric toothbrushes. Background Technology
[0002] Electric toothbrushes are highly efficient oral cleaning tools powered by electricity. Their core mechanism involves a motor that drives the brush head to vibrate, rotate, or oscillate at high frequencies, achieving a more stable and even cleaning effect than manual brushing. Their working principles are mainly divided into sonic and rotary types. Sonic toothbrushes use micro-vibrations to drive water flow to clean between teeth, gently adapting to sensitive gums; rotary toothbrushes, with their reciprocating brush head, are more effective at removing plaque and tartar. Compared to manual toothbrushes, they effectively reduce uneven brushing force and blind spots, improving oral cleanliness in a short time, making them especially suitable for people undergoing orthodontic treatment, those with periodontal sensitivity, and those with high cleaning efficiency needs.
[0003] Electric toothbrushes don't deviate much from the shape of regular toothbrushes. When using them, you still need to hold the handle and move the brush head around in your mouth. Due to differences in personal usage habits, electric toothbrushes can hardly clean all teeth completely, especially the inner surfaces. Also, when holding the handle, you can't free your hands to do other things. For people who need efficiency, the brushing efficiency is low. Therefore, we propose cordless electric toothbrushes. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a wireless electric toothbrush that can simultaneously clean the upper and lower rows of teeth with a toothbrush in the shape of a dental brace, thereby improving the brushing effect and freeing up the hands, and effectively solving the problems in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a wireless electric toothbrush, including an upper dental brace;
[0006] Upper brace: The lower brace is rotatably connected to its rear end via a pin. Both the upper and lower braces have concave silicone toothbrushes attached to their interiors using food-grade RTV silicone adhesive. The bottom and sides of the concave silicone toothbrush grooves are lined with evenly distributed bristles. The lower end of the inner arc surface of the upper brace has a base plate one, and the upper end of the inner arc surface of the lower brace has a base plate two. Both the upper surface of base plate one and the lower surface of base plate two are equipped with sonic motors. The toothbrushes, shaped like braces, simultaneously clean both the upper and lower rows of teeth, providing a better brushing effect while freeing up your hands.
[0007] Furthermore, it also includes a tactile switch. A boss is provided on the right side of the upper surface of the base plate. A circuit board is bonded to the upper surface of the boss with silicone sealant. A tactile switch is provided on the upper surface of the circuit board. The acoustic motors are used in conjunction with the tactile switch to control the opening and closing of the two motors.
[0008] Furthermore, a soft battery pack is bonded to the left side of the upper surface of the base plate one with silicone sealant. The output end of the soft battery pack is electrically connected to the output end of the tactile switch to achieve energy storage.
[0009] Furthermore, a wireless charging receiver is bonded to the rear side of the middle of the upper surface of the base plate one using silicone sealant. The output end of the charging module of the wireless charging receiver is electrically connected to the input end of the soft battery pack to provide power to the soft battery pack.
[0010] Furthermore, it also includes a charging base, in which the upper brace is placed inside the groove of the charging base. A wireless charging transmitter is bonded to the top wall of the charging base with silicone sealant. The power supply module input terminal of the wireless charging transmitter is electrically connected to an external power source. The transmitting coil of the wireless charging transmitter works in conjunction with the receiving coil of the wireless charging receiver to achieve wireless charging.
[0011] Furthermore, the inner surfaces of the upper and lower braces are bonded with uniformly distributed limiting silicone blocks using food-grade RTV silicone adhesive. The two vertically adjacent limiting silicone blocks work together to prevent the upper and lower braces from vibrating and impacting the gums when they are inverted.
[0012] Furthermore, a protective cover is bonded to the upper surface of the upper dental brace with silicone sealant. A silicone button sleeve is bonded to the top wall of the protective cover with silicone sealant. The upper end of the silicone button sleeve passes through the through hole of the protective cover. The button of the tactile switch is located inside the silicone button sleeve. The sonic motor, tactile switch, soft battery pack and wireless charging receiver of the upper dental brace are all located inside the protective cover, thereby protecting the electrical components inside the upper dental brace.
[0013] Furthermore, a protective cover is bonded to the lower surface of the base plate two with silicone sealant, and the acoustic motor of the lower dental brace is located inside the protective cover two, thereby protecting the acoustic motor of the lower dental brace.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present wireless electric toothbrush has the following advantages:
[0015] 1. When brushing your teeth, the user's upper and lower teeth bite into the concave silicone toothbrush. The bristles of the concave silicone toothbrush adhere to the surfaces of adjacent teeth through their own toughness and the elasticity of the silicone itself. The bristles contact all exposed surfaces of the teeth. Two sonic motors drive the two concave silicone toothbrushes to generate high-frequency vibrations, simultaneously providing a deep clean to the teeth enclosed by the concave silicone toothbrush, resulting in a more effective brushing.
[0016] 2. When using this cordless electric toothbrush, the user brushes their teeth by biting down, without needing to hold it, thus freeing up their hands. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the present invention;
[0018] Figure 2 This is a schematic diagram of the structure of the upper dental brace of the present invention;
[0019] Figure 3 This is a schematic diagram of the structure of the upper brace of the present invention after the protective cover is removed;
[0020] Figure 4 This is an exploded structural diagram of the lower dental brace of the present invention;
[0021] Figure 5 This is a schematic diagram of the internal structure of the charging base of the present invention;
[0022] Figure 6 This is a schematic diagram of the upper and lower braces of the present invention in use.
[0023] In the picture: 1 Upper brace, 2 Lower brace, 3 Concave silicone toothbrush, 4 Base plate 1, 5 Sonic motor, 6 Soft battery pack, 7 Tactile switch, 8 Wireless charging receiver, 9 Protective cover 1, 10 Silicone button cover, 11 Base plate 2, 12 Protective cover 2, 13 Limiting silicone block, 14 Charging base, 15 Wireless charging transmitter, 16 Boss. Detailed Implementation
[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0025] Please see Figure 1-6 This embodiment provides a technical solution: a wireless electric toothbrush, including an upper dental cover 1;
[0026] The upper brace 1 is rotatably connected to the lower brace 2 via a pin. Both the upper brace 1 and the lower brace 2 have concave silicone toothbrushes 3 bonded to their interiors with food-grade RTV silicone adhesive. The bottom wall and sides of the concave silicone toothbrush 3 are provided with evenly distributed bristles. The lower end of the inner arc surface of the upper brace 1 is provided with a base plate 4, and the upper end of the inner arc surface of the lower brace 2 is provided with a base plate 11. The middle of the upper surface of the base plate 4 and the lower surface of the base plate 11 are provided with sonic motors 5. The outer shell of the sonic motor 5 is rigidly fixed to the upper brace 1 and the lower brace 2 via sleeves. The output shaft of the sonic motor 5 is unused. The sonic motor 5 has a resonant structure inside. The output shaft is only responsible for generating vibration. Once the output shaft is fixed, the resonance immediately fails, and the sonic motor 5 will not vibrate directly. The vibration of the sonic motor 5 is transmitted to the upper brace 1 and the lower brace 2 through its own shell. The concave silicone toothbrush 3 generates high-frequency vibration to achieve deep cleaning of the teeth.
[0027] Both the upper brace 1 and the lower brace 2 have evenly distributed limiting silicone blocks 13 bonded to their respective inner surfaces with food-grade RTV silicone adhesive. The two vertically adjacent limiting silicone blocks 13 work together to prevent the two sonic motors 5 from being too close together. At the same time, the limiting silicone blocks 13 are soft in texture and play a buffering role when the upper brace 1 and the lower brace 2 bite together, preventing the upper brace 1 and the lower brace 2 from colliding.
[0028] Among them, such as Figure 1-2 As shown, a protective cover 9 is bonded to the upper surface of the upper brace 1 with silicone sealant. A silicone button sleeve 10 is bonded to the top wall of the protective cover 9 with silicone sealant. The upper end of the silicone button sleeve 10 passes through the through hole of the protective cover 9. The button of the tactile switch 7 is located inside the silicone button sleeve 10. The sonic motor 5, tactile switch 7, soft battery pack 6 and wireless charging receiver 8 located in the upper brace 1 are all located inside the protective cover 9. A protective cover 12 is bonded to the lower surface of the base plate 11 with silicone sealant. The sonic motor 5 located in the lower brace 2 is located inside the protective cover 12, thus achieving sealing and waterproofing of the internal electrical components.
[0029] Among them: such as Figure 3 As shown, it also includes a tactile switch 7. A boss 16 is provided on the right side of the upper surface of the base plate 4. A circuit board is bonded to the upper surface of the boss 16 with silicone sealant. The tactile switch 7 is provided on the upper surface of the circuit board. The acoustic motors 5 are used in conjunction with the tactile switch 7. A soft battery pack 6 is bonded to the left side of the upper surface of the base plate 4 with silicone sealant. The output end of the soft battery pack 6 is electrically connected to the output end of the tactile switch 7. The acoustic motors 5 and the tactile switch 7 are provided with corresponding circuits to control the opening and closing of the two acoustic motors 5.
[0030] Among them: such as Figure 5As shown, it also includes a charging base 14. The upper dental brace 1 is placed inside the groove of the charging base 14. The top wall of the charging base 14 is bonded with a wireless charging transmitter 15 by silicone sealant. The power supply module input terminal of the wireless charging transmitter 15 is electrically connected to an external power source. The transmitting coil of the wireless charging transmitter 15 works in conjunction with the receiving coil of the wireless charging receiver 8. After brushing, the wireless electric toothbrush is removed and rinsed directly with water. After rinsing, the upper dental brace 1 is placed upside down into the groove of the charging base 14. The groove has the same shape as the upper dental brace 1 to prevent the upper dental brace 1 from moving. The transmitting coil of the wireless charging transmitter 15 is aligned with the receiving coil of the wireless charging receiver 8. The input terminal of the power supply module of the wireless charging transmitter 15 is electrically connected to an external power source with a Type-C interface to charge the soft battery pack 6.
[0031] The working principle of the wireless electric toothbrush provided by this invention is as follows: During assembly, sleeves are provided on the upper surface of base plate 1 4 and the lower surface of base plate 2 11. The outer shell of the sonic motor 5 is bonded to the inside of the two sleeves using 704 silicone rubber water-based structural adhesive. The output shafts of the sonic motor 5 are left unattended (the output shafts of the sonic motor 5 do not contact base plate 1 4 or base plate 2 11). The cable of the sonic motor 5 of the lower toothbrush 2 passes through the wire hole of protective cover 2 12 and the wire hole of protective cover 1 9. The sonic motor 5 and the tactile switch 7 have corresponding circuits. The specific connection method can be adjusted according to actual needs. This solution is for reference only and not the only implementation method. The setup includes a CH443K single-button switch chip and a MOSFET. One pin of the tactile switch 7 is connected to the KEY button pin of the single-button switch chip, and the other pin is connected to the GND pin of the single-button switch chip. The tactile switch 7 only provides a "trigger signal" to the single-button switch chip and does not draw a large current. The VCC pin of the single-button switch chip is connected to the positive terminal of the battery, and the GND pin is connected to the negative terminal of the battery. The output pin is connected to the G terminal of the MOSFET through a 1kΩ resistor to control the MOSFET's on / off state. The D terminal of the MOSFET is connected to the negative terminals of the two motors, the S terminal is connected to GND, and the G terminal is connected to the output terminal of the single-button switch chip. The MOSFET acts as an electronic switch, responsible for switching the large current of the motors on and off. The positive terminals of the two motors are connected in parallel to the positive terminal of the battery, and the negative terminals are connected in parallel to the D terminal of the MOSFET.
[0032] The wire passage holes of both the second protective cover 12 and the first protective cover 9 are sealed with 705 neutral food-grade silicone to prevent water from entering.
[0033] When using, squeeze toothpaste into the inside of the two concave silicone toothbrushes 3. After wetting the upper toothbrush 1 and lower toothbrush 2, put them in your mouth. The user bites into the inside of the adjacent concave silicone toothbrush 3. The bristles of the concave silicone toothbrush 3 are squeezed by the adjacent teeth. The concave silicone toothbrush 3 generates a reaction force to push the bristles back, so that the bristles are close to the user's teeth. It has self-adaptability. After gently biting several times to make sure that the teeth are stuck inside the concave silicone toothbrush 3, open your mouth and press the silicone button sleeve 10. The silicone button sleeve 10 is recessed, and the button of the light touch switch 7 is pressed, and the two sonic motors 5 are powered on.
[0034] The silicone button sleeve 10 serves as a seal for the button position of the tactile switch 7. It has a certain degree of elasticity and softness, which prevents water from entering while ensuring that the button of the tactile switch 7 can be pressed.
[0035] The outer shell of the sonic motor 5 is rigidly fixed to the upper dental brace 1 and the lower dental brace 2 by sleeves respectively. The output shaft of the sonic motor 5 is unused. The sonic motor 5 has a resonant structure inside. The output shaft is only responsible for generating vibration. Once the output shaft is fixed, the resonance immediately fails and the sonic motor 5 will not vibrate directly. The vibration of the sonic motor 5 is transmitted to the upper dental brace 1 and the lower dental brace 2 through its own shell. The concave silicone toothbrush 3 generates high-frequency vibration to achieve deep cleaning of teeth.
[0036] The concave silicone toothbrush 3 can have comb bristles implanted inside the concave silicone, or bristles implanted into the flat silicone, which facilitates bristle implantation. When it is installed inside the upper brace 1 and the lower brace 2, it forms a concave shape through the grooves of the upper brace 1 and the lower brace 2.
[0037] Two vertically adjacent limiting silicone blocks 13 serve as pads to prevent the two sonic motors 5 from being too close together. At the same time, the limiting silicone blocks 13 themselves are soft and play a buffering role when the upper braces 1 and lower braces 2 bite together, preventing the upper braces 1 and lower braces 2 from colliding.
[0038] The upper dental brace 1 and base plate 1 4, the lower dental brace 2 and base plate 2 11, the protective cover 1 9 and the protective cover 2 12 are all made of PC material. PC material is more convenient to bond with silicone and is also ingestible and non-toxic.
[0039] After brushing your teeth, remove the cordless electric toothbrush and rinse it directly with water. After rinsing, place the upper dental bracket 1 upside down into the groove of the charging base 14. The groove should be the same shape as the upper dental bracket 1 to prevent it from shifting. Align the transmitting coil of the wireless charging transmitter 15 with the receiving coil of the wireless charging receiver 8. The input of the power supply module of the wireless charging transmitter 15 is electrically connected to an external power source via a Type-C interface. The current input from the external power source is processed by the power supply module of the wireless charging transmitter 15 and converted into high-frequency alternating current. The high-frequency current flows through the transmitting coil of the wireless charging transmitter 15, generating a constantly changing magnetic field around it. The receiving coil of the wireless charging receiver 8 is placed in this changing magnetic field and induces alternating current. The receiving module of the wireless charging receiver 8 rectifies, filters, and regulates the alternating current, outputting a stable direct current. The direct current is sent to the soft battery pack 6 for storage, thus achieving charging.
[0040] It is worth noting that the tactile switch 7 disclosed in the above embodiments can be a TACT tactile switch, the acoustic motor 5 can be a BL2719 acoustic motor, the soft battery pack 6 can be a 01030 soft battery, the wireless charging receiver 8 can be an XKT510-04 wireless charging receiver module, and the wireless charging transmitter 15 can be a TX-2330F24V43C wireless charging TX module. The tactile switch 7 is provided with a switch button corresponding to the two acoustic motors 5 for controlling their switching operation.
[0041] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.
Claims
1. A wireless electric toothbrush, characterized in that: Including upper braces (1); Upper dental brace (1): Its rear end is rotatably connected to the lower dental brace (2) via a pin. The interior of both the upper dental brace (1) and the lower dental brace (2) is bonded with a concave silicone toothbrush (3) using food-grade RTV silicone adhesive. The bottom wall and sides of the concave silicone toothbrush (3) are provided with evenly distributed bristles. The lower end of the inner arc surface of the upper dental brace (1) is provided with a base plate one (4), and the upper end of the inner arc surface of the lower dental brace (2) is provided with a base plate two (11). The middle of the upper surface of the base plate one (4) and the lower surface of the base plate two (11) are provided with a sonic motor (5).
2. The wireless electric toothbrush according to claim 1, characterized in that: It also includes a tactile switch (7), and a boss (16) is provided on the right side of the upper surface of the base plate (4). A circuit board is bonded to the upper surface of the boss (16) by silicone sealant. A tactile switch (7) is provided on the upper surface of the circuit board. The acoustic motor (5) is used in conjunction with the tactile switch (7).
3. The wireless electric toothbrush according to claim 2, characterized in that: The soft battery pack (6) is bonded to the left side of the upper surface of the base plate (4) with silicone sealant. The output end of the soft battery pack (6) is electrically connected to the output end of the tactile switch (7).
4. The wireless electric toothbrush according to claim 3, characterized in that: A wireless charging receiver (8) is bonded to the rear side of the middle of the upper surface of the base plate (4) by silicone sealant. The output end of the charging module of the wireless charging receiver (8) is electrically connected to the input end of the soft battery pack (6).
5. The wireless electric toothbrush according to claim 4, characterized in that: It also includes a charging base (14), the upper dental brace (1) is placed inside the groove of the charging base (14), and a wireless charging transmitter (15) is bonded to the top wall of the charging base (14) with silicone sealant. The power supply module input terminal of the wireless charging transmitter (15) is electrically connected to an external power source, and the transmitting coil of the wireless charging transmitter (15) is used in conjunction with the receiving coil of the wireless charging receiver (8).
6. The wireless electric toothbrush according to claim 1, characterized in that: The upper brace (1) and the lower brace (2) have uniformly distributed limiting silicone blocks (13) bonded to their respective inner surfaces by food-grade RTV silicone adhesive. The two vertically adjacent limiting silicone blocks (13) are used in conjunction.
7. The wireless electric toothbrush according to claim 4, characterized in that: The upper surface of the upper brace (1) is bonded with a protective cover (9) by silicone sealant. The top wall of the protective cover (9) is bonded with a silicone button sleeve (10) by silicone sealant. The upper end of the silicone button sleeve (10) passes through the through hole of the protective cover (9). The button of the tactile switch (7) is located inside the silicone button sleeve (10). The sonic motor (5), tactile switch (7), soft battery pack (6) and wireless charging receiver (8) of the upper brace (1) are all located inside the protective cover (9).
8. The wireless electric toothbrush according to claim 1, characterized in that: The lower surface of the base plate 2 (11) is bonded with a protective cover 2 (12) by silicone sealant, and the acoustic motor (5) located in the lower dental sleeve (2) is located inside the protective cover 2 (12).