CN213190237U

CN213190237U - Induction electric toothbrush

Info

Publication number: CN213190237U
Application number: CN202020935372.4U
Authority: CN
Inventors: 欧阳学
Original assignee: Shenzhen Ranvoo Technology Co Ltd
Current assignee: Shenzhen Ranvoo Technology Co Ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-05-14
Anticipated expiration: 2030-05-28

Abstract

The utility model discloses an respond to electric toothbrush, include the brush holder, accept in control circuit in the brush holder and be located the brush head of brush holder one end, control circuit include the circuit board, with drive arrangement that the circuit board is connected, locate the first electrically conductive piece of brush holder, locate the second electrically conductive piece of brush head and general the circuit board respectively with the electrically conductive middleware that first electrically conductive piece and second electrically conductive piece are connected, still be equipped with the switch button on the brush holder, the switch button open just first electrically conductive piece with the second electrically conductive piece is connected with external conductor respectively and when forming the return circuit, first electrically conductive piece and second electrically conductive piece pass through electrically conductive middleware with the circuit board with form the electrically conductive loop that switches on between the drive arrangement, with the drive arrangement vibration and drive brush head motion.

Description

Induction electric toothbrush

Technical Field

The utility model relates to an electric toothbrush technical field especially relates to an induction electric toothbrush.

Background

Electric toothbrushes generally have a better function of cleaning teeth by using high frequency vibration or rotation to cause physical friction between bristles and teeth to remove stains from the surfaces of the teeth.

The existing electric toothbrush is generally provided with a switch button on a brush handle, when the oral cavity is cleaned, toothpaste is generally squeezed on a toothbrush head firstly, then the switch button is turned on, and then the toothbrush is used for brushing teeth, at the moment, the toothbrush head is not contacted with the teeth for the first time, and the toothpaste on the toothbrush head can be vibrated away by the vibration of the toothbrush head; meanwhile, when the tooth brushing is finished, if the toothbrush does not stop working, when the toothbrush is taken out from the mouth, the toothbrush head still vibrates, so that toothpaste foam is splashed out, and the use experience is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem that exists now, the embodiment of the utility model provides a more intelligent, can effectively promote the response electric toothbrush who uses experience.

In order to achieve the above object, the embodiment of the present invention provides a technical solution that:

the utility model provides an induction electric toothbrush, includes the brush holder, accept in control circuit in the brush holder and be located the brush head of brush holder one end, control circuit include the circuit board, with drive arrangement that the circuit board is connected, locate the first electrically conductive piece of brush holder, locate the second electrically conductive piece of brush head and incite somebody to action the circuit board respectively with the electrically conductive middleware that first electrically conductive piece and second electrically conductive piece are connected, still be equipped with the switch button on the brush holder, the switch button is opened just first electrically conductive piece with the second electrically conductive piece is connected with the external conductor respectively and when forming the return circuit, first electrically conductive piece with the second electrically conductive piece passes through electrically conductive middleware with the circuit board with form the electrically conductive loop who switches on between the drive arrangement, in order to drive arrangement vibrates and drives brush head motion.

The conductive intermediate part comprises a first conductive intermediate part for connecting the circuit board with the first conductive part, a second conductive intermediate part for connecting the second conductive intermediate part with a driving shaft, and a third conductive intermediate part for connecting the circuit board with the driving shaft of the driving device.

The first conductive intermediate piece comprises a first metal sheet which is in surface contact with the first conductive piece, and the first metal sheet is electrically connected with the circuit board.

The third conductive intermediate piece comprises a second metal sheet connected with the circuit board in a welded mode and first conductive silica gel connected with the second metal sheet, and the first conductive silica gel is sleeved on the driving shaft.

The second conductive intermediate part comprises second conductive silica gel lapped between the second conductive piece and the driving shaft.

The brush handle is internally provided with a battery for supplying power to the control circuit, and the switch key is switched on or off to correspondingly control the connection or disconnection of the power supply between the battery and the control circuit.

The circuit board is provided with a control circuit and a detection circuit, when the switch key is turned on and the first conductive piece and the second conductive piece do not form a loop, the detection circuit detects an initial starting signal and sends the initial starting signal to the control circuit, and the control circuit drives the driving device to vibrate at a low frequency; when the switch key is turned on and the first conductive piece and the second conductive piece form a loop, the detection circuit detects a formal starting signal and sends the formal starting signal to the control circuit, and the control circuit drives the driving device to vibrate at a high frequency.

The first conductive piece is a holding part arranged on the surface of the brush handle, the second conductive piece is a brush head back arranged on the brush head and used for supporting bristles, and the holding part and the brush head back are respectively made of conductive materials.

Wherein the conductive material is conductive plastic.

An induction electric toothbrush comprises a brush handle, a control circuit accommodated in the brush handle, a battery used for supplying power to the control circuit and a brush head positioned at one end of the brush handle, the brush head comprises a brush head back and brush hairs arranged on the brush head back, the brush head back and the part of the brush handle for holding are both made of conductive materials, a switch key used for controlling the on-off between the battery and the control circuit is arranged on the brush handle, the control circuit comprises a circuit board, a driving device connected with the circuit board and a conductive intermediate piece which connects the circuit board with the brush head back and the holding part respectively, when the switch key is turned on and the brush head back and the holding part are respectively connected with an external conductor to form a loop, the brush head back and the holding part form a conductive loop through the conductive intermediate piece so as to drive the driving device to vibrate at a set frequency to drive the brush head to vibrate.

In the induction electric toothbrush provided by the above embodiment, the control circuit comprises the switch button arranged on the brush handle and the first conductive piece and the second conductive piece respectively arranged on the brush handle and the brush head, when the switch key is turned on and the first conductive piece and the second conductive piece are respectively connected with the external conductor, the conductive loop is conducted to drive the driving device to vibrate the brush head, therefore, when a user uses the electric toothbrush to clean the oral cavity, the switch button is firstly turned on, the toothbrush cannot immediately enter a working state, only when the toothbrush extends into the oral cavity, the first conductive piece and the second conductive piece which are arranged on the brush handle and the brush head are respectively contacted with the oral cavity and the hand of the user so as to conduct the conductive loop, the toothbrush starts to normally work, and the problem that the toothbrush starts to vibrate at a working frequency to shake off toothpaste on the brush head after the switch button is pressed is avoided; when the user has cleaned the oral cavity and takes out electric toothbrush from the mouth, thereby locate the electrically conductive piece of brush head and break away from the contact with the user and cut off electrically conductive loop, the toothbrush head stops vibrating with operating frequency immediately, avoids the toothbrush head to still vibrate after taking out from the mouth and lead to the foam to splash and influence electric toothbrush's use experience.

Drawings

FIG. 1 is a schematic view of an electric toothbrush according to an embodiment of the present application;

fig. 2 is a cross-sectional view of an induction powered toothbrush in an embodiment of the present application.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the drawings and specific embodiments. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the following description, reference is made to the expression "some embodiments" which describe a subset of all possible embodiments, but it should be understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.

It will also be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2 in combination, an embodiment of the present application provides an induction electric toothbrush, including a handle 11, a control circuit housed in the handle 11, and a head 13 located at one end of the handle 11, where the control circuit includes a circuit board 110, a driving device 114 connected to the circuit board 110, a first conductive member 113 and a second conductive member 131 respectively disposed on the handle 11 and the head 13, and a conductive intermediate member connecting the circuit board 110 to the first conductive member 113 and the second conductive member 131 respectively, the handle 11 is further provided with a switch button 112, when the switch button 112 is opened and the first conductive member 113 and the second conductive member 131 are connected to an external conductor respectively to form a loop, the first conductive member 113 and the second conductive member 131 form a conductive loop with the circuit board 110 and the driving device 114 through the conductive intermediate member, to drive the driving device 114 to vibrate and drive the brush head 13 to move.

In the induction electric toothbrush provided by the above embodiment, the control circuit includes the switch button 112 disposed on the brush handle 11, and the first conductive member 113 and the second conductive member 131 respectively disposed on the brush handle 11 and the brush head 13, and the conductive loop can be conducted only when the switch button 112 is turned on and the first conductive member 113 and the second conductive member 131 are respectively connected to the external conductor. Thus, when a user uses the electric toothbrush for oral cavity cleaning, the switch button 112 is firstly turned on, at the moment, the conductive loop of the induction electric toothbrush is not conducted, the driving device 114 cannot immediately enter a working state, only when the induction electric toothbrush extends into the oral cavity of the user, the first conductive piece 113 and the second conductive piece 131 which are arranged on the brush handle 11 and the brush head 13 are respectively contacted with the oral cavity and the hand of the user so as to conduct the conductive loop, the toothbrush can start to normally work, and the phenomenon that the toothbrush starts to vibrate at a working frequency to shake off toothpaste on the brush head 13 after the switch button 112 is pressed down is avoided; when the user has cleaned the oral cavity and takes out response electric toothbrush from the mouth, thereby locate the second of brush head 13 and lead to 131 and the user to break away from the contact and cut off the electrically conductive loop, toothbrush head 13 stops vibrating with operating frequency immediately, avoid toothbrush head 13 to take out the back from the mouth and still vibrate at high frequency and lead to the foam to splash and influence electric toothbrush's use experience, the user can close switch button 112 afterwards, in order to avoid the user when need not to use this response electric toothbrush, the first of brush holder 11 and brush head 13 is 113 and the second is led to the piece 131 and the contact of outer conductor and the unexpected electrically conductive loop that switches on, avoid response electric toothbrush's false start.

The brush holder 11 is substantially hollow and cylindrical, and an accommodating space for accommodating the control circuit is formed inside the brush holder 11. The end of the handle 11 remote from the head 13 is provided with a removable end cap. The first conductive member 113 is a holding portion disposed on an outer surface of the brush handle 11, and the holding portion is made of a conductive material. The brush head 13 includes a brush head back and bristles 132 disposed on the brush head back, the second conductive member 131 is the brush head back, and the brush head back is made of a conductive material. Optionally, the conductive material is a conductive plastic. The one end that brush holder 11 and brush head 13 are connected is equipped with first helicitic texture, brush head back of the head 13 with the one end that brush holder 11 is connected is equipped with second helicitic texture, passes through between brush holder 11 and the brush head 13 first helicitic texture and second helicitic texture is threaded each other and detachably connects, conveniently changes brush head 13.

Optionally, the induction electric toothbrush further comprises a battery 121 housed in the handle 11. Alternatively, the battery 121 may be a rechargeable lithium battery. The battery 121 is configured to supply power to the control circuit, the switch button 112 may be disposed between the battery 121 and the control circuit, and the switch button 112 opens or closes to correspondingly control on or off of a power connection between the battery 121 and the control circuit.

In some embodiments, the conductive intermediate parts include a first conductive intermediate part connecting the circuit board 110 with the first conductive member 113, a second conductive intermediate part connecting the second conductive intermediate part with a driving shaft 151 of the driving device 114, and a third conductive intermediate part connecting the circuit board 110 with the driving shaft 151. In an alternative embodiment, the driving device 114 is a motor, and the driving shaft 151 is a motor shaft. The first conductive intermediate member includes a first metal sheet 116 in surface contact with the first conductive member 113, and the first metal sheet 116 is electrically connected to the circuit board 110. The holding portion of the brush handle 11 includes two parts symmetrically disposed on the outer surface of the brush handle 11, and for easy identification, a mark may be disposed on the holding portion, so that a user can accurately hold the corresponding part during brushing teeth to connect the first conductive member 113 with an external conductor, i.e., the body of the user. The circuit board 110 and the first metal sheet 116 may be respectively disposed at positions facing the two portions of the holding portion, the surface of the first metal sheet 116 is an arc surface, and the first metal sheet 116 and one of the portions of the holding portion form surface contact, so that the electrical connection between the first metal sheet 116 and the holding portion is more stable, the first conductive intermediate member further includes a wire 117 connecting the first metal sheet 116 and the circuit board 110, and the first metal sheet 116 and the circuit board 110 away from the side where the circuit board 110 is located are connected by the wire 117. Optionally, the holding portion may be only disposed on one side of the outer surface of the brush handle 11, the circuit board 110 is accommodated in the brush handle 11 and disposed at a position close to the holding portion, the first metal sheet 116 is in surface contact with the holding portion, and one end of the first metal sheet is directly welded to the circuit board 110, so that the first conductive intermediate member is not connected to the circuit board 110 through the first metal sheet 116 via a wire.

The third conductive intermediate piece includes a second metal sheet 118 connected to the circuit board 110 by welding and a first conductive silica gel 119 connected to the second metal sheet 118, and the driving shaft 151 is sleeved with the first conductive silica gel 119. The second metal sheet 118 is soldered on the circuit board 110, and the second metal sheet 118 and the first conductive silicone rubber 119 also form a surface contact therebetween. First electrically conductive silica gel 119 is the periphery that drive shaft 151 was located to the annular and cover, and drive shaft 151 is the metal axle, and drive shaft 151's periphery is located to first electrically conductive silica gel 119 ring, so in the working process of drive shaft 151 vibration or rotation, can avoid drive shaft 151 and the inner wall collision of response electric toothbrush on the one hand, on the other hand also can ensure to keep good electricity between drive shaft 151 and the first electrically conductive silica gel 119 all the time. The second conductive intermediate member includes a second conductive silicone rubber 120 lapped between the second conductive member 131 and the driving shaft 151. Brush head back of the body is connected with drive shaft 151 through the electrically conductive silica gel 120 of second, so, in the response electric toothbrush working process, drive shaft 151 transmits the vibrational force for brush head back of the body through the electrically conductive silica gel 120 of second to the vibration of the brush head back of the body is brushed in the drive, and the electrically conductive silica gel 120 of second can transmit the vibration of drive shaft 151 for brush head back of the body on the one hand, and on the other hand also can form the cushion effect to the contact between drive shaft 151 and the brush head back of the body, and ensure to keep good electricity between drive shaft 151 and the brush.

Optionally, the circuit board 110 is provided with a detection circuit and a control circuit, the detection circuit is configured to detect a current signal in the conductive loop, and send the current signal to the control circuit to drive the driving device to vibrate, and the control circuit controls the driving device 114 to operate or stop operating in a corresponding state according to the current signal. Optionally, when the switch button 112 is pressed to be turned on during use of the induction electric toothbrush, the detection circuit detects an initial start signal and sends the initial start signal to the control circuit to control the driving device 114 to vibrate at a low frequency, where the low frequency may be vibration with a vibration frequency lower than a set value, such as 10Hz, the initial start signal may be that when the switch button 112 is pressed and the first conductive member 113 and the second conductive member 131 do not form a loop, the control circuit is connected to the power supply, and the detection circuit detects a small current signal flowing through the loop of the power supply, the control circuit and the driving device 114. When a user holds the holding part of the brush handle 11 and extends the brush head 13 into the oral cavity, the holding part on the brush handle 11 is contacted with the hand of the user, and when the brush hair on the brush head 13 is contacted with teeth or other parts in the oral cavity, the back of the brush head can be connected with a human body to be conducted due to the moist environment in the oral cavity during tooth brushing, and the brush head 13 and the brush handle 11 are connected with the human body to form a loop; or, the holding portion on the brush handle 11 and the back of the brush head on the brush head 13 contact with the hand and the oral cavity of the user respectively to form a loop, that is, the first conductive member 113 and the second conductive member 131 are connected with the body of the user respectively to turn on the conductive loop, at this time, the detection circuit detects a formal start signal in the conductive loop and sends the formal start signal to the control circuit, and the control circuit controls the driving device to vibrate at a high frequency, where the high frequency may be a working frequency with a vibration frequency higher than a set value, such as a vibration frequency higher than 10 Hz. Optionally, the high-frequency vibration may also be divided into a plurality of gears, the control circuit correspondingly controls the driving device 114 to operate at different set vibration frequencies according to different gears currently selected by the user, and the driving shaft 151 vibrates at the corresponding set frequency to drive the brush head 13 to vibrate; the formal start signal may be a large current signal flowing through a loop in which the first conductive member 113, the power supply, the control circuit, the driving device 114, and the second conductive member 131 are detected by the detection circuit when the conductive loop is turned on. When the user finishes cleaning the oral cavity and takes the brush head 13 out of the oral cavity, the brush head 13 is separated from the contact with the body of the user, so that the conductive loop is disconnected, the detection circuit sends the detected small current signal to the control circuit again, the control circuit controls the driving device 114 to switch to low-frequency vibration again according to the small current signal, and controls the driving device 114 to stop vibrating after the switch button 112 is disconnected.

In this embodiment, a conductive loop is formed by the holding portion located on the handle 11, the brush head back located on the brush head 13, the circuit board 110, and the conductive intermediate member connecting the circuit board 110 with the brush head back and the holding portion, respectively, when the switch button 112 is turned on, the body of the user is used as an external conductor by the inductive electric toothbrush, the brush head and the holding portion are connected with the external conductor, respectively, and the brush head back and the holding portion form a conductive loop with the circuit board 110 and the driving device 114 through the conductive intermediate member, so as to drive the driving device 114 to vibrate at a set frequency to drive the brush head 13 to vibrate. This response electric toothbrush passes through switch button 112 and brush head back of the body and the portion of gripping are connected respectively with external conductor and start the dual condition of normal vibration work as response electric toothbrush, realize response electric toothbrush when sensing brush head 13 and stretch into user's oral cavity rear and begin to vibrate with operating frequency, and sense brush head 13 and can stop vibrating with operating frequency after taking out from user's oral cavity, in order to avoid stretching into the toothbrush before formally brushing teeth or when brushing teeth after taking out from the mouth, the toothbrush head keeps the high frequency vibration of the in-process of brushing teeth, lead to toothpaste to drop or the foam spill, influence use experience, also can avoid simultaneously when the non-uses of brushing teeth brush head back of the body and the portion of gripping are connected respectively with external conductor and lead to the mistake of toothbrush to start.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An induction electric toothbrush comprises a brush handle, a control circuit accommodated in the brush handle and a brush head positioned at one end of the brush handle, it is characterized in that the control circuit comprises a circuit board, a driving device connected with the circuit board, a first conductive piece arranged on the brush handle, a second conductive piece arranged on the brush head and a conductive intermediate piece which connects the circuit board with the first conductive piece and the second conductive piece respectively, the brush handle is also provided with a switch key, when the switch key is opened and the first conductive piece and the second conductive piece are respectively connected with an external conductor to form a loop, and the first conductive piece and the second conductive piece form a conductive loop with the circuit board and the driving device through the conductive intermediate piece so as to drive the driving device to vibrate and drive the brush head to move.

2. The inductive power toothbrush of claim 1, wherein the conductive intermediate members include a first conductive intermediate member connecting the circuit board to the first conductive member, a second conductive intermediate member connecting the second conductive member to a drive shaft of the drive device, and a third conductive intermediate member connecting the circuit board to the drive shaft.

3. The inductive power toothbrush of claim 2, wherein the first conductive intermediate member comprises a first metal sheet having a surface contact with the first conductive member, the first metal sheet being electrically connected to the circuit board.

4. The inductive electric toothbrush according to claim 3, wherein the third conductive intermediate member comprises a second metal plate connected to the circuit board by soldering and a first conductive silicone rubber connected to the second metal plate, the first conductive silicone rubber being fitted over the driving shaft.

5. The induction power toothbrush of claim 4, wherein; the second conductive intermediate piece comprises second conductive silica gel lapped between the second conductive piece and the driving shaft.

6. The inductive power toothbrush of claim 1, wherein a battery for supplying power to the control circuit is further accommodated in the handle, and the on or off of the switch button is used for correspondingly controlling the connection or disconnection of the power between the battery and the control circuit.

7. The induction electric toothbrush of claim 1, wherein a control circuit and a detection circuit are provided on the circuit board, when the switch button is turned on and the first conductive member and the second conductive member do not form a loop, the detection circuit detects an initial start signal and sends the initial start signal to the control circuit, and the control circuit drives the driving device to vibrate at a low frequency; when the switch key is turned on and the first conductive piece and the second conductive piece form a loop, the detection circuit detects a formal starting signal and sends the formal starting signal to the control circuit, and the control circuit drives the driving device to vibrate at a high frequency.

8. The inductive power toothbrush according to any one of claims 1 to 7, wherein the first conductive member is a grip portion provided on a surface of the handle, the second conductive member is a head back provided on the head and supporting bristles, and the grip portion and the head back are respectively made of a conductive material.

9. The induction power toothbrush of claim 8, wherein said conductive material is a conductive plastic.

10. An induction electric toothbrush comprises a brush handle, a control circuit contained in the brush handle, a battery used for supplying power to the control circuit and a brush head positioned at one end of the brush handle, and is characterized in that the brush head comprises a brush head back and brush bristles arranged on the brush head back, the brush head back and the part of the brush handle used for holding are both made of conductive materials, a switch key used for controlling the on-off between the battery and the control circuit is arranged on the brush handle, the control circuit comprises a circuit board, a driving device connected with the circuit board and a conductive intermediate piece connecting the circuit board with the brush head back and the holding part respectively, when the switch key is opened, the brush head back and the holding part are connected with an external conductor respectively to form a loop, the brush head back and the holding part form a conductive loop through the conductive intermediate piece, so as to drive the driving device to vibrate at a set frequency to drive the brush head to vibrate.