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WO2021233425A1 - Brosse à dents électrique à détection de pression - Google Patents

Brosse à dents électrique à détection de pression Download PDF

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Publication number
WO2021233425A1
WO2021233425A1 PCT/CN2021/095185 CN2021095185W WO2021233425A1 WO 2021233425 A1 WO2021233425 A1 WO 2021233425A1 CN 2021095185 W CN2021095185 W CN 2021095185W WO 2021233425 A1 WO2021233425 A1 WO 2021233425A1
Authority
WO
WIPO (PCT)
Prior art keywords
driving mechanism
sensing element
pressure
circuit board
pressure sensing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/095185
Other languages
English (en)
Chinese (zh)
Inventor
廖嘉业
姚志坚
陈思远
李双双
黄李祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Meijia Intelligent Technology Co Ltd
Original Assignee
Guangzhou Meijia Intelligent Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Meijia Intelligent Technology Co Ltd filed Critical Guangzhou Meijia Intelligent Technology Co Ltd
Publication of WO2021233425A1 publication Critical patent/WO2021233425A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/221—Control arrangements therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/222—Brush body details, e.g. the shape thereof or connection to handle

Definitions

  • This application relates to the technical field of electric toothbrushes, in particular to a pressure-sensitive electric toothbrush.
  • the electric toothbrush is a tooth cleaning appliance that uses the rapid rotation or vibration of the motor core to cause the brush head to produce high-frequency vibration, which instantly decomposes toothpaste into fine foam, and cleans the teeth deeply. Because of its convenient use and good cleaning effect, people are right The use of electric toothbrushes is becoming more and more common.
  • the purpose of the embodiments of the present application includes at least providing a pressure-sensitive electric toothbrush, which reduces the chances of the user's gums and oral cavity being damaged when the toothbrush head is stressed.
  • the embodiment of the application provides a pressure-sensitive electric toothbrush, which may include a handle housing, a circuit board, a connecting bracket, a driving mechanism, and a toothbrush head,
  • the brush handle housing may have opposite first and second sides;
  • the circuit board may be arranged in the brush handle housing close to the first side of the brush handle housing along the length direction of the brush handle housing;
  • the connecting bracket may be arranged in the handle housing close to the top end of the handle housing;
  • the driving mechanism may be arranged in the handle housing close to the top end of the handle housing, and the driving mechanism may be drivingly connected with the toothbrush head;
  • a pressure sensing element may be provided on the inner side of the circuit board or on a side of the driving mechanism close to the circuit board, and the pressure sensing element may be connected to a controller on the circuit board;
  • the pressure sensing element When the pressure sensing element is arranged on the inner side of the circuit board, the pressure sensing element may leave a pressing gap with the driving mechanism; when the pressure sensing element is arranged on the driving mechanism close to When on one side of the circuit board, the pressure sensing element may leave a pressing gap with the circuit board;
  • a protrusion may be provided on the inner side of the second side portion of the brush handle housing, and the end surface of the protrusion may be arc-shaped;
  • a through groove may be provided on the connecting bracket, and the protrusion on the second side of the brush handle housing may pass through the through groove;
  • the outer side of the driving mechanism may be provided with a revolving matching portion on a side close to the second side portion of the brush handle housing, and the revolving matching portion and the protruding portion are revolvingly matched;
  • the controller controls the predetermined element to perform a preset protection operation.
  • the circuit board is arranged in the handle housing close to the first side of the handle housing, and the connecting bracket and the driving mechanism are close to the handle in the handle housing.
  • the top part of the housing is provided, and the driving mechanism is drivingly connected to the toothbrush head; the pressure sensing element arranged on the inner side of the circuit board or on the side of the driving mechanism close to the circuit board is connected to the controller, and the pressure sensing element is connected to the driving mechanism There is a pressing gap left on the component or circuit board.
  • the inner side of the second side of the brush handle housing is provided with a convex part with an arc-shaped end surface.
  • the convex part passes through the through groove on the connecting bracket,
  • a revolving mating part is provided on one side of the second side part of the brush handle housing, and the revolving mating part is revolvingly matched with the protruding part.
  • the toothbrush head will be offset relative to the handle due to greater compression.
  • the toothbrush head will drive the driving mechanism through the rotation of the revolving mating part and the protruding part.
  • Revolving deviation the driving mechanism generates revolving deviation and then triggers the pressure sensing element.
  • the controller controls the predetermined element to perform the preset protection operation.
  • the preset protection operation performed by the predetermined element can be Reduce the chances of the user's gums and oral cavity being damaged.
  • the driving mechanism includes a driving motor and a motor housing,
  • the driving motor may be arranged on the motor housing;
  • the driving motor may be drivingly connected with the toothbrush head
  • the pressure sensing element When the pressure sensing element is arranged on the inner side of the circuit board, the pressure sensing element may leave a pressing gap with the motor housing of the driving mechanism;
  • the pressure sensing element When the pressure sensing element is disposed on the side of the driving mechanism close to the circuit board, the pressure sensing element may be disposed on the motor housing of the driving mechanism close to the circuit On one side of the board;
  • the revolving matching portion may be provided on the motor housing of the driving mechanism.
  • the toothbrush head drives the drive motor to shift, and the drive motor shifts, which drives the motor housing to revolve and shift through the revolving cooperation between the revolving fitting part and the protruding part.
  • the structure of the driving mechanism and the setting of the revolving matching part are more reasonable and scientific, avoiding the direct setting of the revolving matching part on the driving motor, and better guaranteeing the revolving cooperation on the driving part
  • the part is matched with the rotation of the protruding part on the shell of the brush handle.
  • the motor housing may include a motor housing main body and a pressing plate,
  • the pressure sensing element may be disposed on the inner side of the circuit board close to the bottom end of the motor housing main body, and the pressing plate may be disposed on the bottom end of the motor housing main body;
  • the pressing plate When the pressure sensing element is arranged on the inner side of the circuit board, the pressing plate may be close to the pressure sensing element and leave the pressing gap with the pressure sensing element;
  • the pressure sensing element When the pressure sensing element is disposed on the side of the driving mechanism close to the circuit board, the pressure sensing element may be disposed on the pressing board of the motor housing close to the circuit board On one side
  • the revolving matching portion may be provided on the motor housing main body of the driving mechanism.
  • the pressing plate can be arranged at the bottom end of the motor housing body.
  • the pressing plate can also follow the motor housing body to revolve and deviate, thereby triggering pressure.
  • the arrangement of the sensing element and the pressing plate better guarantees the triggering of the pressure sensing element, and further guarantees the pressure sensing of the pressure-sensitive electric toothbrush in the embodiment of the present application.
  • the driving motor may be an ultrasonic vibration motor.
  • the ultrasonic vibration motor can make the pressure-sensitive electric toothbrush of the embodiment of the present application have a better cleaning effect.
  • the revolving matching portion may be a recessed portion, and the recessed portion may be arc-shaped.
  • the arc-shaped concave portion can better revolve and cooperate with the arc-shaped convex portion on the end surface.
  • the protruding part may be a protruding pillar, the end surface of the protruding pillar may be arc-shaped, and the protruding pillar may pass through a through slot on the connecting bracket;
  • the concave portion may be a concave arc surface, and the concave arc surface may revolve and cooperate with the convex column.
  • the driving mechanism can have a better revolving and deflection effect.
  • the protruding part is a protrusion
  • the end surface of the protrusion is arc-shaped
  • the recessed part is an arc-shaped groove
  • the revolving matching portion is a hemispherical convex portion.
  • the revolving matching portion is a straight contact portion.
  • the pressure sensing element is a Hall sensor.
  • the through groove is an elongated through groove.
  • the predetermined element is the driving mechanism
  • the controller may control the output power of the driving mechanism to decrease, or control the driving mechanism to stop outputting power.
  • a buzzer may be provided on the circuit board, and the predetermined element may be a buzzer;
  • the controller can control the buzzer to emit a warning protection sound.
  • the buzzer by controlling the buzzer to emit a warning protection sound, the user can be prompted, so that the probability of damage to the user's gums and oral cavity can be better reduced.
  • the pressure sensing element may be a mechanical limit switch.
  • the mechanical travel switch is easier to trigger, which can better guarantee the pressure sensing effect of the pressure-sensitive electric toothbrush in the embodiment of the present application.
  • a pressure-sensitive electric toothbrush which may include a handle housing, a circuit board, a connecting bracket, a driving mechanism, and a toothbrush head.
  • the brush handle housing may have opposite first and second sides;
  • the circuit board may be arranged in the handle housing close to the first side of the handle housing along the length direction of the handle housing;
  • the connecting bracket may be arranged in the handle housing close to the top end of the handle housing;
  • the driving mechanism may be arranged in the handle housing close to the top end of the handle housing, and the driving mechanism may be drivingly connected with the toothbrush head;
  • a pressure sensing element may be provided on the inner side of the circuit board or on a side of the driving mechanism close to the circuit board, and the pressure sensing element may be connected to a controller on the circuit board;
  • the pressure sensing element When the pressure sensing element is arranged on the inner side of the circuit board, the pressure sensing element may leave a pressing gap with the driving mechanism; when the pressure sensing element is arranged on the driving mechanism close to When on one side of the circuit board, the pressure sensing element may leave a pressing gap with the circuit board;
  • the outer side of the driving mechanism may be provided with a protruding part on a side close to the second side of the brush handle housing, and the end surface of the protruding part may be arc-shaped;
  • a through groove may be provided on the connecting bracket, and the protrusion on the outer side of the driving mechanism may pass through the through groove;
  • the inner side of the second side portion of the brush handle housing may be provided with a revolving matching portion, and the protruding portion may be revolvingly engaged with the revolving matching portion;
  • the controller may control a predetermined element to perform a preset protection operation.
  • the circuit board is arranged in the handle housing close to the first side of the handle housing, and the connecting bracket and the driving mechanism are close to the handle in the handle housing.
  • the top part of the housing is provided, and the driving mechanism is drivingly connected to the toothbrush head;
  • the pressure sensing element arranged on the inner side of the circuit board or on the side of the driving mechanism close to the circuit board is connected to the controller, and the pressure sensing element is connected to the driving mechanism
  • a pressing gap is left on the component or the circuit board, and the outer side of the driving component is provided with a convex part with an arc-shaped end surface on the side close to the second side part of the brush handle housing, and the convex part passes through the connecting bracket.
  • the groove, the inner side of the second side of the handle housing is provided with a revolving cooperating portion, and the protruding portion revolves with the revolving cooperating portion.
  • the toothbrush head will be offset relative to the handle due to greater compression.
  • the toothbrush head will drive the driving mechanism through the rotation of the revolving mating part and the protruding part.
  • Revolving deviation the driving mechanism generates revolving deviation and then triggers the pressure sensing element.
  • the controller controls the predetermined element to perform the preset protection operation.
  • the preset protection operation performed by the predetermined element can be Reduce the chances of the user's gums and oral cavity being damaged.
  • the driving mechanism may include a driving motor and a motor housing
  • the motor housing may include a motor housing main body
  • the driving motor may be arranged on the motor housing;
  • the driving motor may be drivingly connected with the toothbrush head
  • a pressing gap may be left between the pressure sensing element and the motor housing of the driving mechanism
  • the pressure sensing element When the pressure sensing element is disposed on the side of the driving mechanism close to the circuit board, the pressure sensing element may be disposed on the motor housing of the driving mechanism close to the circuit On one side of the board;
  • the revolving matching portion may be provided on the motor housing main body of the driving mechanism.
  • the driving motor may be an ultrasonic vibration motor.
  • the revolving matching portion may be a recessed portion, and the recessed portion may be arc-shaped.
  • the protruding part may be a protruding pillar, the end surface of the protruding pillar may be arc-shaped, and the protruding pillar may pass through the through groove on the connecting bracket;
  • the concave portion may be a concave arc surface, and the concave arc surface may revolve and cooperate with the convex column.
  • the predetermined element may be the driving mechanism
  • the controller may control the output power of the driving mechanism to decrease, or control the driving mechanism to stop outputting power.
  • Figure 1 is a schematic partial cross-sectional view of a pressure-sensitive electric toothbrush provided by an alternative embodiment of the application;
  • Figure 2 is a partial enlarged view of Figure 1;
  • Fig. 3 is a schematic structural diagram of a motor housing provided by an alternative embodiment of the application.
  • Icon 11-Brush handle housing; 111-first side; 112-second side; 113-projection; 12-circuit board; 13-connection bracket; 14-drive mechanism; 141-drive motor; 142 -Motor housing; 1421-Motor housing main body; 1422-Press plate; 1423-Revolving fitting part; 15-Toothbrush head; 16-Pressure sensing element.
  • the terms “installed”, “set”, “provided”, “connected”, and “connected” should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or a point connection; it can be directly connected, or indirectly connected through an intermediary, or between two devices, elements or components.
  • the internal communication between For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood according to specific circumstances.
  • first means two or more.
  • FIG. 1 is a schematic partial cross-sectional structure diagram of a pressure-sensitive electric toothbrush provided by an embodiment of the application
  • FIG. 2 is a partial enlarged view of FIG. 1.
  • the pressure-sensitive electric toothbrush of the embodiment of the present application includes a handle housing 11, a circuit board 12, a connecting bracket 13, a driving mechanism 14 and a toothbrush head 15.
  • the handle housing 11 has a first side 111 and a second side 112 opposite to each other;
  • the circuit board 12 is arranged in the handle housing 11 close to the first side 111 of the handle housing 11 along the length direction of the handle housing 11;
  • the connecting bracket 13 is arranged in the handle housing 11 close to the top end of the handle housing 11;
  • the driving mechanism 14 is arranged in the handle housing 11 close to the top end of the handle housing 11, and the driving mechanism 14 is drivingly connected with the toothbrush head 15;
  • a pressure sensing element 16 is provided on the inner side of the circuit board 12 or on the side of the driving mechanism 14 close to the circuit board 12, and the pressure sensing element 16 is connected to a controller (not shown in the drawings) on the circuit board 12;
  • a protrusion 113 is provided on the inner side of the second side 112 of the handle housing 11, and the end surface of the protrusion 113 is arc-shaped;
  • the connecting bracket 13 is provided with a through groove, and the protrusion 113 on the second side 112 of the handle housing 11 passes through the through groove;
  • the outer side of the driving mechanism 14 is provided with a revolving fitting portion 1423 on the side close to the second side portion 112 of the handle housing 11, and the revolving fitting portion 1423 is revolving to cooperate with the protruding portion 113;
  • the controller controls the predetermined element to perform a preset protection operation.
  • the toothbrush head 15 in FIG. 1 when the toothbrush head 15 in FIG. 1 receives a large force, the toothbrush head 15 will shift upward relative to the handle. Because the driving mechanism 14 is drivingly connected to the toothbrush head 15, the driving mechanism 14 will also be The revolving offset occurs under the revolving cooperation of the revolving matching portion 1423 and the protruding portion 113.
  • the circuit board 12 is arranged in the handle housing 11 close to the first side 111 of the handle housing 11, and the connecting bracket 13 and the driving mechanism 14 are located close to the brush in the handle housing 11
  • the top end of the handle housing 11 is provided, and the driving mechanism 14 is drivingly connected to the toothbrush head 15; the pressure sensing element 16 and the controller ( The drawings are not shown) are connected, and the pressure sensing element 16 is left with a pressing gap with the driving mechanism 14 or the circuit board 12.
  • the inner side of the second side 112 of the handle housing 11 is provided with a convex part with an arc-shaped end surface. 113.
  • the protruding portion 113 passes through the through slot on the connecting bracket 13, and the outer side of the driving mechanism 14 is provided with a revolving fitting portion 1423 on the side close to the second side 112 of the handle housing 11, which revolves to fit The portion 1423 and the protruding portion 113 revolve and cooperate.
  • the toothbrush head 15 When the toothbrush head 15 deviates, the toothbrush head 15 drives the driving member 14 to rotate and deviate through the rotation cooperation of the revolving cooperating portion 1423 and the protrusion 113, and the driving member 14 revolves and deviates Then the pressure sensing element 16 is triggered.
  • the controller controls the predetermined element to perform a preset protection operation.
  • the preset protection operation performed by the predetermined element can reduce the chance of the user's gums and oral cavity being damaged. .
  • FIG. 3 is a schematic structural diagram of a motor housing 142 provided by an embodiment of the application.
  • the driving mechanism 14 includes a driving motor 141 and a motor housing 142,
  • the driving motor 141 is arranged on the motor housing 142;
  • the driving motor 141 is drivingly connected with the toothbrush head 15;
  • the pressure sensing element 16 When the pressure sensing element 16 is disposed on the side of the driving mechanism 14 that is close to the circuit board 12, the pressure sensing element 16 is disposed on the side of the motor housing 142 of the driving mechanism 14 that is close to the circuit board 12;
  • the revolving matching portion 1423 is disposed on the motor housing 142 of the driving component 14.
  • the toothbrush head 15 When the toothbrush head 15 deviates, the toothbrush head 15 drives the drive motor 141 to deviate, and the drive motor 141 deviates and drives the motor housing 142 to revolve through the revolving cooperation of the revolving matching portion 1423 and the protruding portion 113. Therefore, the pressure sensing element 16 is triggered, the structure of the driving mechanism 14 and the setting of the revolving cooperating portion 1423 are more reasonable and scientific, which avoids the revolving cooperating portion 1423 being directly arranged on the driving motor 141, which better guarantees the driving mechanism
  • the upper revolving mating portion 1423 is revolvingly matched with the protruding portion 113 on the handle housing 11.
  • the motor housing 142 includes a motor housing main body 1421 and a pressing plate 1422,
  • the pressure sensing element 16 is disposed on the inner side of the circuit board 12 close to the bottom end of the motor housing main body 1421, and the pressing plate 1422 is disposed on the bottom end of the motor housing main body 1421;
  • the pressing plate 1422 is close to the pressure sensing element 16, and there is a pressing gap with the pressure sensing element 16;
  • the pressure sensing element 16 When the pressure sensing element 16 is disposed on the side of the driving mechanism 14 close to the circuit board 12, the pressure sensing element 16 is disposed on the pressing plate 1422 of the motor housing 142 on the side close to the circuit board 12;
  • the revolving matching portion 1423 is disposed on the motor housing main body 1421 of the driving mechanism 14.
  • the pressing plate 1422 is disposed at the bottom end of the motor housing main body 1421.
  • the press plate 1422 also follows the motor housing main body 1421 to revolve and deviate, thereby triggering the pressure sensing element 16.
  • the arrangement of the pressing plate 1422 better guarantees the triggering of the pressure-sensing element 16, thereby better guaranteeing the pressure-sensing of the pressure-sensing electric toothbrush in the embodiment of the present application.
  • the motor housing 142 may only include the motor housing main body 1421 without the pressing plate 1422.
  • the pressure sensing element 16 may be located on the circuit board 12 at the bottom of the driving motor 141. Ends.
  • the predetermined element may be the driving mechanism 14;
  • the controller controls the output power of the driving mechanism 14 to decrease, or controls the driving mechanism 14 to stop outputting power.
  • the probability of damage to the user's gums and oral cavity can be better reduced.
  • a buzzer (not shown in the figure) is provided on the circuit board 12, and the predetermined component may also be a buzzer;
  • the controller controls the buzzer to emit a warning and protection sound.
  • the buzzer By controlling the buzzer to emit a warning and protection sound, the user can be prompted, which can better reduce the chance of the user's gums and oral cavity being damaged.
  • the driving motor 141 is an ultrasonic vibration motor.
  • the ultrasonic vibration motor can make the cleaning effect of the pressure-sensitive electric toothbrush of the embodiment of the present application better.
  • the revolving mating portion 1423 is a recessed portion, and the recessed portion is arc-shaped.
  • the arc-shaped concave part can better revolve and cooperate with the arc-shaped convex part 113 on the end surface.
  • the protruding part 113 is a protruding pillar, the end surface of the protruding pillar is arc-shaped, and the protruding pillar passes through the through slot on the connecting bracket 13;
  • the concave part is a concave arc surface, and the concave arc surface is revolvingly matched with the convex column.
  • the driving mechanism 14 can have a better revolving and deflection effect.
  • the revolving mating portion 1423 may also be a hemispherical protrusion, or the revolving mating portion 1423 may also be a straight contact portion.
  • the protrusion 113 may also be a protrusion, and the end surface of the protrusion is arc-shaped.
  • the protrusion 113 is a protrusion
  • the recess is a groove
  • the groove is an arc-shaped groove.
  • the pressure sensing element 16 is a mechanical limit switch.
  • the mechanical travel switch is easier to trigger, and can better guarantee the pressure sensing effect of the pressure-sensitive electric toothbrush in the embodiment of the present application.
  • the pressure sensing element 16 may also be other components, such as a Hall sensor.
  • other components that may be used by the pressure sensing element 16 are not listed here.
  • the through slot is an elongated through slot.
  • the elongated through groove can facilitate the arrangement of the structure in the pressure-sensitive electric toothbrush of the embodiment of the present application.
  • the improvement of the pressure-sensitive electric toothbrush in the embodiment of the present application at least includes the above content.
  • the remaining content of the pressure-sensitive electric toothbrush in the embodiment of the present application please refer to the electric toothbrush in the related art. In this embodiment, Do not repeat it.
  • FIG. 1 is a schematic partial cross-sectional structure diagram of the pressure-sensitive electric toothbrush provided by the foregoing embodiment of the application
  • FIG. 2 is a partial enlarged view of FIG. 1.
  • the pressure-sensitive electric toothbrush of the embodiment of the present application includes a handle housing 11, a circuit board 12, a connecting bracket 13, a driving mechanism 14 and a toothbrush head 15.
  • the handle housing 11 has a first side 111 and a second side 112 opposite to each other;
  • the circuit board 12 is arranged in the handle housing 11 close to the first side 111 of the handle housing 11 along the length direction of the handle housing 11;
  • the connecting bracket 13 is arranged in the handle housing 11 close to the top end of the handle housing 11;
  • the driving mechanism 14 is arranged in the handle housing 11 close to the top end of the handle housing 11, and the driving mechanism 14 is drivingly connected with the toothbrush head 15;
  • a pressure sensing element 16 is provided on the inner side of the circuit board 12 or on the side of the driving mechanism 14 close to the circuit board 12, and the pressure sensing element 16 is connected to a controller (not shown in the drawings) on the circuit board 12;
  • the outer side of the driving mechanism 14 is provided with a protruding part on the side close to the second side 112 of the handle housing 11, and the end surface of the protruding part is arc-shaped;
  • the connecting bracket 13 is provided with a through slot, and the protruding part on the outer side of the driving mechanism 14 passes through the through slot;
  • the inner side of the second side 112 of the handle housing 11 is provided with a revolving fitting part, and the protruding part is revolvingly matched with the revolving fitting part;
  • the controller controls the predetermined element to perform a preset protection operation.
  • the main difference between the pressure-sensitive electric toothbrush of the embodiment of the present application and the pressure-sensitive electric toothbrush of the previous embodiment includes the interchange of the positions of the protruding part and the revolving matching part.
  • the toothbrush head 15 in FIG. 1 when the toothbrush head 15 in FIG. 1 receives a large force, the toothbrush head 15 will shift upward relative to the handle. Because the driving mechanism 14 is drivingly connected to the toothbrush head 15, the driving mechanism 14 will also be The revolving offset occurs under the revolving cooperation of the revolving mating part and the protruding part.
  • the circuit board 12 is arranged in the handle housing 11 close to the first side 111 of the handle housing 11, and the connecting bracket 13 and the driving mechanism 14 are located close to the brush in the handle housing 11
  • the top part of the handle housing 11 is provided, and the driving mechanism 14 is drivingly connected with the toothbrush head 15; the pressure sensing element 16 and the controller ( The drawing is not shown) is connected, and the pressure sensing element 16 is left with a pressing gap with the driving mechanism 14 or the circuit board 12.
  • the outer side of the driving mechanism 14 is on the side close to the second side 112 of the handle housing 11.
  • a protruding part with an arc-shaped end surface is provided, and the protruding part passes through the through groove on the connecting bracket 13, and the inner side of the second side 112 of the handle housing 11 is provided with a revolving matching part.
  • the mating part rotates and cooperates.
  • FIG. 3 is a schematic diagram of the structure of the motor housing provided by the foregoing embodiment of the application.
  • the protruding portion provided on the driving mechanism 14 is provided on the motor housing main body 1421 of the driving mechanism 14.
  • the present application provides a pressure-sensitive electric toothbrush, which reduces the chance of the user's gums and oral cavity being damaged when the toothbrush head is subjected to greater force, and improves the user's use experience.
  • the pressure-sensitive electric toothbrush of the present application is reproducible and can be widely used in the field of sanitary appliances.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Brushes (AREA)

Abstract

Est divulguée, une brosse à dents électrique à détection de pression, comprenant un boîtier de manche de brosse (11), une carte de circuit imprimé (12), un support de liaison (13), un élément d'entraînement (14) et une tête de brosse à dents (15). La carte de circuit imprimé (12) se trouve dans le boîtier de manche de brosse (11) et est disposée à proximité d'une première partie latérale (111) du boîtier de manche de brosse (11). Le support de liaison (13) et l'élément d'entraînement (14) se trouvent dans le boîtier de manche de brosse (11) et sont disposés à proximité de l'extrémité supérieure du boîtier de manche de brosse (11). L'élément d'entraînement (14) est en liaison par entraînement avec la tête de brosse à dents (15). Un élément de détection de pression (16) du côté interne de la carte de circuit imprimé (12) est connecté à un dispositif de commande, et un espace de pression est réservé entre l'élément de détection de pression (16) et l'élément d'entraînement (14). Une saillie (113) est disposée du côté interne d'une seconde partie latérale (112) du boîtier de manche de brosse (11), et la saillie (113) passe à travers une fente dans le support de liaison (13). Le côté extérieur de l'élément d'entraînement (14) est pourvu d'une partie de mise en correspondance de révolution (1423) sur un côté proche de la seconde partie latérale (112) du boîtier de manche de brosse (11), et la partie de mise en correspondance de révolution (1423) et la saillie (113) correspondent en termes de révolution. Lorsque l'élément de détection de pression (16) est déclenché, le dispositif de commande commande un élément prédéterminé pour effectuer une opération de protection prédéfinie. Lorsqu'il existe une grande quantité de contrainte sur la tête de brosse à dents (15), la brosse à dents électrique à détection de pression peut réduire la probabilité que les gencives et la cavité buccale d'un utilisateur soient endommagées.
PCT/CN2021/095185 2020-05-22 2021-05-21 Brosse à dents électrique à détection de pression Ceased WO2021233425A1 (fr)

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WO2022038626A1 (fr) * 2020-08-21 2022-02-24 Shivsagar Tewary Dispositif électromécanique compact pour réduire la résorption de crête résiduelle

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