JP3244056U - electric toothbrush - Google Patents

Abstract

[Problem] To provide an electric toothbrush that is simple in structure, easy to assemble, easy to handle, convenient to carry, and highly practical. [Solution] An electric toothbrush includes a brush head, a middle section, a tail section, and a magnetic adsorption connection device provided between the middle section and the tail section, the middle section including a middle housing. , the first end of the middle housing has a receiving groove, and the second end of the middle housing connects the brush head. The tail section includes a tail housing removably connected at one end to the receiving groove. The magnetic adsorption connection device connects a first magnetic body and a first conductor provided in a middle housing, a second magnetic body and a second conductor provided at an end of a tail housing, and a conductive connection material. The first magnetic body and the second magnetic body are fixed to the middle part and the tail part by magnetic attraction, and the conductive connecting material has one end electrically connected to the first conductor and the other end. It is connected to the second conductor to achieve signal transmission and electrical continuity between the middle stage section and the final stage section. [Selection diagram] Figure 1

Description

TECHNICAL FIELD The present application relates to the technical field of electric care equipment, and in particular, to an electric toothbrush.

Conventional electric toothbrushes can be disassembled into two or three stages, and the multi-stage structure needs to be assembled into one before use. Current assembly methods include coupling, screw-in, and snap-fit methods, all of which require complicated assembly procedures. For example, screw-type attachments require relative rotation, which can affect the electrically conductive structures inside the electric toothbrush during rotation, and thus the reliability of the electric toothbrush.

Therefore, there is a need to provide an electric toothbrush that allows more convenient and simple assembly between the stages of the electric toothbrush.

According to an embodiment of the present application, an electric toothbrush is provided, and the electric toothbrush includes a brush head, and a middle section including a middle housing having a housing groove at a first end and to which the brush head is connected to a second end. a tail section including a tail housing whose peripheral side wall at one end is removably connected to the inner wall of the housing groove; a first magnetic body; a second magnetic body; a first conductor; and a second conductor. , a magnetic attraction connection device including a conductive connection material, the first magnetic body and the first conductor are provided in the middle housing, and the second magnetic body and the second conductor are provided in the middle housing. The conductive connecting material is provided at an end of the tail housing, the first magnetic body and the second magnetic body are fixed so that the middle part and the tail part can be separated by a magnetic adsorption action, and the conductive connecting material is One end is electrically connected to the first conductor, and the other end facilitates signal transmission and electrical continuity between the middle section and the tail section when the middle section and the tail section are fixed. An electric toothbrush characterized in that it is electrically connected to the second conductor as shown in FIG.

In some embodiments of the present application, the magnetic adsorption connection device further includes a stopper provided in the middle housing and having a stopper groove recessed in a surface facing the first end surface, a body is provided in the stopper groove, the first conductor is provided on a side of the first magnetic body away from the tail step, and a positioning hole is provided penetrating the stopper groove; One end of the conductive connecting material is connected to the first conductor, and the other end passes through the positioning hole and connects to the second conductor.

In some embodiments of the present application, the bottom wall of the stopper groove is provided with a positioning base protruding toward the second end, and the positioning hole penetrates through the positioning base and the bottom wall of the stopper groove. A through hole is formed in the first magnetic body, and the positioning table is inserted into the through hole to position the first magnetic body.

For some embodiments of the present application, the positioning base has a positioning post on a surface remote from the bottom wall, the first conductor has a fixing hole, and the positioning post has a positioning post in the fixing hole. and fixing the first conductor.

In some embodiments of the present application, the magnetic adsorption connection device further includes a first connector provided on a surface of the first conductor opposite to the first magnetic body, and the first connector is provided in the middle housing. The device further includes a control circuit board, and the first connector has one end electrically connected to the first conductor and the other end connected to the control circuit board to realize signal transmission.

For some embodiments of the present application, the tail housing includes a main body and a protrusion connected to one end of the main body, the protrusion is received in the receiving groove, and the protrusion is , has a top surface facing the first end, the second conductor is provided on the top surface, and the second magnetic material is housed in the protrusion.

In some embodiments of the present application, the magnetic adsorption connection device further includes a second connector provided in the protrusion, and the top surface is provided with an opening passing through the second connector. One end is connected to the second conductor through the opening for power supply and signal transmission.

In some embodiments of the present application, the tail housing further includes a power supply circuit board, and the second conductor includes a straight part and a holding part connected to a part of the straight part. At least a portion of the straight portion is exposed from the tail housing toward the first end, the conductive connecting material is connected to the exposed portion of the straight portion, and the holding portion is It is connected to the power circuit board for power supply and signal transmission.

In some embodiments, the telescoping module includes a telescoping cylinder connected to the rotation cylinder, a fixed plate to which a tip of the rotation support frame is fixed, and a fixed plate connected to the telescoping cylinder and extending through the fixed plate. and a telescoping shaft connected to the connection lever.

In some embodiments of the present application, the protrusion has a top wall toward one end of the first end, the straight part is partially fitted into the top wall, and the conductive connecting member is partially exposed on the top wall so as to electrically connect the clamping part, the clamping part extends the top wall in a direction away from the first end, and a contact is provided on a surface of the clamping part. A part of the extending holding portion is electrically connected to the power supply circuit board via the contact.

In some embodiments of the present application, a first guide part is provided on an inner wall of the housing groove along a direction in which the middle part and the tail part are connected, and the tail housing is connected to the middle part. A second guide portion extends from one end, and the first guide portion and the second guide portion engage with each other to perform a retaining and guiding function.

Compared with the prior art, the electric toothbrush provided in the present application is provided with a magnetic adsorption connection device between the middle part and the tail part, that is, the first magnetic body and the first conductive material are provided in the middle housing. A second magnetic body and a second conductive body are provided correspondingly in the tail housing, and the first magnetic body and the second magnetic body are connected to the middle housing by magnetic attraction. By electrically connecting the first conductor and the second conductor through the conductive connecting material, the signal transmission between the middle stage part and the tail stage part is achieved. It is possible to achieve both power supply and power supply. This electric toothbrush has a simple structure, is easy to assemble due to magnetic attraction, is easy to handle, is convenient to carry, and is highly practical.

1 is a schematic configuration diagram after assembly of an electric toothbrush according to a first embodiment of the present application; FIG. 2 is a schematic exploded structural diagram of the electric toothbrush shown in FIG. 1. FIG. FIG. 3 is a schematic exploded structural diagram of the electric toothbrush shown in FIG. 2 from another perspective. 2 is a schematic exploded structural diagram of the electric toothbrush shown in FIG. 1. FIG. FIG. 5 is a schematic exploded structural diagram of the electric toothbrush shown in FIG. 4 from another perspective. 3 is a sectional view of the electric toothbrush shown in FIG. 2. FIG. 4 is a sectional view of the electric toothbrush shown in FIG. 3. FIG. FIG. 2 is a partial cross-sectional view of the electric toothbrush shown in FIG. 1 taken along line AA. FIG. 2 is a schematic configuration diagram after assembly of an electric toothbrush according to a second embodiment of the present application. 10 is a schematic exploded structural diagram of the electric toothbrush shown in FIG. 9. FIG. 10 is a schematic exploded sectional view of the electric toothbrush shown in FIG. 9. FIG. 10 is a schematic exploded structural diagram from another perspective of the electric toothbrush shown in FIG. 9. FIG. 10 is a partial sectional view taken along line BB of the electric toothbrush shown in FIG. 9. FIG.

Hereinafter, the invention in the embodiments of the present application will be described with reference to the drawings in the embodiments of the present application, and it is clear that each embodiment is only a part of the embodiments of the present application and does not cover all the embodiments.

Note that when an element is said to be "attached" to another element, it may exist directly on the other element, or it may be attached to the other element via another element. Good too. When an element is considered to be "attached" to another element, it may be attached directly to the other element or it may be attached to the other element through another element.

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 application belongs, unless defined otherwise. The terminology used in the specification of the present application is for the purpose of describing specific embodiments only and is not intended to limit the present application. The term "or/and" as used herein includes any and all combinations of one or more of the associated items. As used herein, the terms "vertical", "horizontal", "left", "right", "top", "bottom" and similar expressions are used for descriptive purposes only.

Hereinafter, some embodiments of the present application will be described in detail with reference to the drawings.

Referring to FIGS. 1, 2, and 3, the first embodiment of the present application provides an electric toothbrush 1000 applied to tooth care. The electric toothbrush 1000 includes a brush head 200, a middle section 300, and a tail section 400. The brush head 200, middle section 300 and tail section 400 can be removably connected in sequence to assemble a complete electric toothbrush 1000. The middle section 300 includes a middle housing 310, a first end 311 of the middle housing 310 has a housing groove 313, and a second end 312 of the middle housing 310 removably connects the brush head 200. The tail section 400 includes a tail housing 410, and the tail housing 410 includes a main body 411 and a protrusion 412 that connects one side of the main body 411. When the electric toothbrush 1000 is assembled, the protrusion 412 is accommodated in the accommodation groove 313 , and the peripheral side wall of the protrusion 412 is removably connected to the inner wall of the accommodation groove 313 .

In fact, the middle housing 310 is also provided with a control module (not shown) including a control circuit board 320 to control the operating mode of the brush head 200, such as the frequency of vibration and the number of rotations. A power module (not shown) including a power circuit board 420 is provided in the tail housing 410 for power supply.

4, FIG. 5, FIG. 6, FIG. 7, and FIG. 8, a magnetic attraction connection device 100 is provided between the middle housing 310 and the tail housing 410, and the magnetic attraction connection device 100 includes: It is used to connect the middle section 300 and the tail section 400 by magnetic attraction, and to conductively connect the assembled control module and power supply module. The magnetic adsorption connection device 100 includes a first magnetic body 10, a second magnetic body 20, a first conductor 30, a second conductor 40, and a conductive connecting material 50. The first conductor 30 and the conductive connecting material 50 are provided in the middle housing 310, the second magnetic body 20 and the second conductor 40 are provided in the tail housing 410, and the first magnetic body 10 and the second magnetic body 20 are provided in the middle housing 310. are connected to each other by magnetic action, one end of the conductive connecting material 50 is connected to the first conductor 30, and the other end is connected to the second conductor 40, so that the middle section 300 and the tail section 400 are connected to each other by magnetic action. A conductive connection is made between the two.

The magnetic adsorption connection device 100 includes a stopper 60 and a first connector 70 , and the stopper 60 and the first connector 70 are provided inside the middle housing 310 . Specifically, the stopper 60 has a stopper groove 61 recessed toward the surface of the second end 312 , and the first magnetic body 10 , the first conductor 30 , and the conductive connecting material 50 are provided in the stopper groove 61 . The bottom wall 611 of the stopper groove 61 has a positioning base 62 protruding toward the second end 312, and the positioning base 62 is provided with a plurality of positioning columns 63 on the surface away from the bottom wall 611. A plurality of positioning holes 64 are provided through 611. Among these, the first magnetic body 10 is provided with a through hole 101, the first magnetic body 10 is attached to the bottom wall 611 of the stopper groove 61 via the first rubber layer 11, and the positioning base 62 is penetrated through the first magnetic body 10. The hole 101 is bored to position the first magnetic body 10. The first conductor 30 is attached to the surface of the first magnetic body 10 away from the bottom wall 611 via the second rubber layer 31, and the first conductor 30 is provided with a plurality of fixing holes 301. The positioning post 63 is provided correspondingly within the fixing hole 301 to position the first conductor 30. The conductive connecting material 50 extends through the positioning hole 64 , and has one end connected to the first conductor 30 and the other end exposed through the positioning hole 64 and connected to the second conductor 40 . The first connector 70 is provided on the surface of the first conductor 30 remote from the first magnetic body 10, and the first connector 70 is electrically connected to the first conductor 30 to transmit signals and power supply.

Here, the stopper 60 positions the first magnetic body 10 via a positioning stand 62, provides a positioning hole 64 to position the conductive connecting material 50, and provides a positioning post 63 to position the first conductor 30. By doing so, it is possible to reduce friction between the parts inside the middle housing 310. It is understood that the stopper 60 can reduce the contact area between the components inside the middle housing 310 and the outside world when the middle housing 310 and the tail housing 410 are separated, thereby reducing damage to the components.

In some embodiments, a waterproof rubber ring 65 is provided on the outer circumferential wall of the stopper 60, and the waterproof rubber ring 65 is provided on the outer circumferential wall of the stopper 60 to prevent waterproofing when the middle section 300 and the tail section 400 are connected by magnetic attraction or when the electric toothbrush 1000 is used. A rubber ring 65 is used for waterproof and vibration isolation.

In some embodiments, the end of the conductive connecting material 50 on the second conductor 40 side is spherical or hemispherical, so that the contact between the end of the conductive connecting material 50 and the second conductor 40 is a point contact. Therefore, the conductive connecting material 50 can be easily slid over the second conductor 40.

In this embodiment, the number of conductive connecting members 50 is four, while the number of positioning holes 64 is four, and the four positioning holes 64 are evenly provided on the positioning base 62. The number of fixing holes 301 corresponding to the positioning posts 63 is three, and the three positioning posts 63 are provided on the positioning base 62 evenly around the positioning holes 64.

Note that, in reality, the first connector 70 may be electrically connected to a control circuit board 320 for displaying and extinguishing the LED lamp in the middle section 300.

The magnetic adsorption connection device 100 further includes a second connector 80 , the second connector 80 and the second magnetic body 20 are provided within the protrusion 412 , and the second conductor 40 is provided at the tip of the protrusion 412 . Among these, the first end 311 side of the protrusion 412 has a top surface 414, the second conductor 40 is provided on the top surface 414 via the third rubber layer 41, and the second magnetic body 20 is attached to the fourth rubber layer 414. It is provided on a surface facing the top surface 414 with the layer 21 interposed therebetween. An aperture 415 is formed through the top surface 414 , and one end of the second connector 80 is connected to the second conductor 40 through the aperture 415 . Note that one side of the second connector 80 is also connected to the power supply circuit board 420 (that is, equivalent to connecting a power supply module), and conduction and signal transmission between the middle section 300 and the tail section 400 are possible. enable transmission.

In some embodiments, a positioning groove 4141 is recessed in the top surface 414, and the second conductor 40 is provided in the positioning groove 4141. In this embodiment, both the first conductor 30 and the second conductor 40 are rigid circuit boards.

The connecting direction between the middle section 300 and the tail section 400 is defined as an assembly direction L. A first guide section 314 is provided on the inner wall of the housing groove 313 along the assembly direction L, and a first guide section 314 is provided on the outer wall of the protruding section 412. A second guide portion 413 is provided correspondingly, and the first guide portion 314 and the second guide portion 413 engage with each other to perform a retaining and guiding function.

Among these, the first guide part 314 may be a guide groove, and the second guide part 413 may be a guide rail. In other embodiments, the first guide part 314 may be a guide rail, and the second guide part 413 may be a guide groove.

In some embodiments, the second magnetic body 20 has a notch groove 201, and the second connector 80 is provided within the notch groove 201, so that the occupied volume can be reduced. In this embodiment, the notch groove 201 penetrates the second magnetic body 20 along the connection direction between the middle section 300 and the tail section 400 .

The electric toothbrush 1000 provided in the present application is provided with a magnetic adsorption connection device 100 between the middle section 300 and the tail section 400, that is, the first magnetic body 10 and the first conductive material are provided in the middle housing 310. The body 30 and the conductive connecting material 50 are provided, the second magnetic body 20 and the second conductive body 40 are provided correspondingly in the tail housing 410, and the first magnetic body 10 and the second magnetic body 20 are magnetically The connection between the middle section 300 and the tail section 400 is achieved by the suction action, and by electrically connecting the first conductor 30 and the second conductor 40 via the conductive connecting material 50, the middle section It is possible to achieve both signal transmission and power feeding between the tail section 300 and the tail section 400. This electric toothbrush 1000 has a simple structure, is easy to manufacture, has high practicality, and is easy to handle and carry due to the magnetic attraction effect.

Referring to FIGS. 9 to 13, the second embodiment of the present application provides an electric toothbrush 2000 having substantially the same configuration as electric toothbrush 1000, and the differences between the two are as follows.

The first magnetic body 10 does not have a through hole 101, the first magnetic body 10 is provided inside the stopper 60, and the plurality of conductive connecting members 50 are provided on opposite sides of the first magnetic body 10.

In this embodiment, the second conductor 40 is an elastic piece, and includes a straight part 401 and a clamping part 402 bent and connected to one end of the straight part 401. The protruding part 412 has a top wall 416 on the side facing the first end 311, and the straight part 401 is partially fitted into the top wall 416, so that the straight part 401 is connected to the top wall 416 (i.e., the top surface 414). ), the conductive connecting material 50 is connected to the exposed straight portion 401 through the positioning hole 64. By extending from the top wall 416 in the direction away from the first end 311 (that is, along the assembly direction L) so as to connect the holding part 402 to the power supply circuit board 420, the second connector 80 is unnecessary and conductive. Signal transmission can be realized.

Among these, contacts 403 are provided on the surface of the holding part 402, and one end of the power supply circuit board 420 is provided on the holding part 402 and comes into contact with the contact 403, thereby establishing electrical continuity.

In some embodiments, the second conductor 40 may be buried in the tail housing 410 using an insert molding method so that the surface of the straight portion 401 is exposed on the top surface 414.

Those skilled in the art will appreciate that the embodiments described above are not limited to the purpose of illustrating the present application, but are within the scope of the present application as long as they are within the substantial spirit of the present application. should be recognized.

1000, 2000 Electric toothbrush 100 Magnetic adsorption connection device 10 First magnetic body 11 First rubber layer 101 Through hole 20 Second magnetic body 201 Notch groove 21 Fourth rubber layer 30 First conductor 301 Fixing hole 31 Second rubber layer 40 Second conductor 401 Straight part 402 Clamping part 403 Contact point 41 Third rubber layer 50 Conductive connecting material 60 Stopper 61 Stopper groove 611 Bottom wall 62 Positioning stand 63 Positioning pillar 64 Positioning hole 65 Waterproof rubber ring 70 First connector 80 Second Connector 200 Brush head 300 Middle part 310 Middle housing 311 First end 312 Second end 313 Accommodation groove 314 First guide part 320 Control circuit board 400 Tail part 410 Tail part housing 411 Main body part 412 Projection part 413 Second guide part 414 Top surface 4141 Positioning groove 415 Opening 416 Top wall 420 Power supply circuit board L Assembly direction

Claims (10)

brush head and
a middle part including a middle housing having a housing groove at a first end and to which the brush head is connected to a second end;
a tail section including a tail housing whose peripheral side wall at one end is removably connected to the inner wall of the housing groove;
A magnetic adsorption connection device including a first magnetic body, a second magnetic body, a first conductor, a second conductor, and a conductive connecting material, wherein the first magnetic body and the first conductor are , the second magnetic body and the second conductor are provided in the end of the tail housing, and the first magnetic body and the second magnetic body have a magnetic attraction effect. The middle part and the tail part are separably fixed by a screw, one end of the conductive connecting material is electrically connected to the first conductor, and the other end of the conductive connecting material is connected to the middle part. It is characterized in that it is electrically connected to the second conductor so as to realize signal transmission and electrical continuity between the middle stage part and the tail stage part when fixed to the tail stage part. ,electric toothbrush. The magnetic adsorption connection device further includes a stopper provided in the middle housing and having a stopper groove recessed in a surface facing the first end, and the first magnetic body is provided in the stopper groove. , the first conductor is provided on a side of the first magnetic body away from the tail portion,
A positioning hole is provided through the stopper groove, and one end of the conductive connecting material is connected to the first conductor, and the other end is connected to the second conductor through the positioning hole. The electric toothbrush according to claim 1, characterized in that: The bottom wall of the stopper groove has a positioning base protruding toward the second end, and the positioning hole passes through the positioning base and the bottom wall of the stopper groove,
The electric toothbrush according to claim 2, wherein the first magnetic body is provided with a through hole, and the positioning table is inserted into the through hole to position the first magnetic body. The positioning base has a positioning post on a surface remote from the bottom wall, the first conductor has a fixing hole, and the positioning post is provided in the fixing hole to fix the first conductor. The electric toothbrush according to claim 3, characterized in that: The magnetic adsorption connection device further includes a first connector provided on a surface of the first conductor opposite to the first magnetic body,
A control circuit board is further provided in the middle housing, and the first connector has one end electrically connected to the first conductor and the other end connected to the control circuit board to realize signal transmission. The electric toothbrush according to claim 1, characterized in that: The tail housing includes a main body and a protrusion connected to one end of the main body, the protrusion being accommodated in the accommodation groove,
The protrusion has a top surface facing the first end, the second conductor is provided on the top surface, and the second magnetic body is housed in the protrusion. Electric toothbrush as described. The magnetic adsorption connection device further includes a second connector provided within the protrusion, an aperture passing through the top surface, and one end of the second connector connected to the second connector through the aperture. The electric toothbrush according to claim 6, wherein the electric toothbrush is connected to two conductors for power supply and signal transmission. further comprising a power circuit board within the tail housing;
The second conductor includes a straight part and a clamping part connected to a part of the straight part, and at least a part of the straight part extends from the tail housing toward the first end. The conductive connecting material is exposed, the conductive connecting material is connected to the exposed part of the straight part, and the holding part is connected to the power circuit board for power supply and signal transmission. The electric toothbrush according to item 6. The protruding portion has a top wall toward one end of the first end, and the straight portion is partially fitted into the top wall and extends from the top so as to electrically connect the conductive connecting material. partially exposed on the wall, the clamping portion extending the top wall in a direction away from the first end;
9. The electric motor according to claim 8, wherein a contact is provided on a surface of the holding part, and a part of the extending holding part is conductively connected to the power supply circuit board via the contact. toothbrush. A first guide part is provided on an inner wall of the housing groove along a direction in which the middle part and the tail part are connected, and a second guide part is provided extending at one end of the tail housing connected to the middle part. The electric toothbrush according to claim 1, wherein the first guide part and the second guide part are engaged with each other and are used for retaining and guiding functions.

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