CN209996517U

CN209996517U - Anion electric toothbrush

Info

Publication number: CN209996517U
Application number: CN201920552536.2U
Authority: CN
Inventors: 罗宁; 西川满; 蔡延钟
Original assignee: Ionic Co Ltd; NINGBO SEAGO ELECTRIC CO Ltd
Current assignee: Ionic Co Ltd; NINGBO SEAGO ELECTRIC CO Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2020-01-31
Anticipated expiration: 2029-04-22
Also published as: JP3224383U

Abstract

The utility model provides an anion electric toothbrush, it includes the main part, the main part is formed with the cavity, the circuit board set up in the cavity, the bullet needle, the embedding of bullet needle the injecing of main part the lateral wall of cavity, the bullet needle with the circuit board contact, the panel cover is in installing the bullet needle the surface of main part, the panel with be provided with between the bullet needle and be used for waterproof seal structure, make the panel with the bullet needle contacts indirectly, the bullet needle the panel with seal structure all can electrically conduct, makes the panel with the circuit board electricity is connected.

Description

Anion electric toothbrush

Technical Field

The utility model relates to the field of electric toothbrushes, in particular to an kinds of negative ion electric toothbrushes.

Background

In kinds of prior arts, the anion toothbrush and human body are connected in series and electrified to release anions, achieving the effect of cleaning teeth, for the anion toothbrush, it is necessary to ensure the sealing and waterproof performance, and also to make the surface of the toothbrush conduct with the circuit inside, in kinds of prior arts, ultrasonic welding is used to achieve sealing and waterproof, the effect is not good, and water leakage is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide kinds of anion electric toothbrushes with good waterproof effect.

The utility model provides an kind of anion electric toothbrush, it includes:

a body formed with a cavity;

a circuit board disposed within the cavity;

a pogo pin embedded in a sidewall of the body defining the cavity, the pogo pin being in contact with the circuit board;

the panel, the panel cover is in installing the bullet needle the surface of main part, the panel with be provided with between the bullet needle and be used for waterproof seal structure, make the panel with the bullet needle indirectly contacts, the bullet needle the panel with seal structure all can electrically conduct, makes the panel with the circuit board electricity is connected.

Preferably, the sealing structure comprises a conductive paste.

Preferably, the sealing structure further comprises a conductive foam, and the conductive foam is arranged between the conductive adhesive and the panel.

Preferably, in a direction from the outside of the cavity to the inside of the cavity, the conductive foam and the conductive adhesive partially overlap, and a part of the conductive foam does not overlap with the conductive adhesive.

Preferably, the main body is provided with a mounting port for a battery to be mounted in the cavity, the battery is used for supplying power to the circuit board, the negative ion electric toothbrush further comprises a bottom cover, the bottom cover is detachably mounted on the mounting port so as to close the cavity, and a sealing ring is arranged between the bottom cover and the main body.

Preferably, the panels include th panel and a second panel, the th panel and the second panel are spaced apart in the circumferential direction of the main body, the circuit boards include th circuit board and a second circuit board, the th circuit board and the second circuit board are in conduction, the th panel and the th circuit board are in conduction with the sealing structure through the pogo pin, and the second panel and the second circuit board are in conduction with the sealing structure through the pogo pin.

Preferably, the negative ion electric toothbrush further comprises a metal rod extending into the cavity, and the metal rod is convexly arranged on the main body along the length direction.

Preferably, the panel is connectable to a positive pole of a battery via the circuit board, and the metal rod is connectable to a negative pole of the battery via the circuit board.

Preferably, the metal rod and the circuit board are conducted by a spring, which is compressed to abut against the metal rod.

Preferably, a vibration unit is arranged in the cavity of the main body and can drive the anion electric toothbrush to vibrate.

Through adopting the technical scheme, the utility model discloses rely on the bullet needle to switch on circuit board and panel to set up seal structure between bullet needle and panel and realize waterproof sealing, play good waterproof sealing effect.

Drawings

Fig. 1 shows a cross-sectional view of an electric toothbrush according to an embodiment of the present invention.

Fig. 2 shows an exploded schematic view of an electric toothbrush according to an embodiment of the present invention.

Fig. 3 illustrates a front view of an electric toothbrush according to an embodiment of the present invention.

Fig. 4 shows a cross-sectional view along the line C-C in fig. 3.

Fig. 5 shows an enlarged view of a portion E in fig. 4.

Fig. 6 illustrates a rear view of an electric toothbrush according to an embodiment of the present invention.

Fig. 7 shows a cross-sectional view taken along line G-G in fig. 6.

Fig. 8 shows an enlarged view of a portion H in fig. 7.

Fig. 9 shows a schematic view of the structure of the positive spring and the mount installed at .

Fig. 10 shows a schematic structure of the connection of the positive electrode of the battery and the circuit board.

Fig. 11 shows a schematic structural view of the connection of the circuit connection unit and the panel unit.

Description of the reference numerals

1 main body unit 11 main body 12 metal rod 13 brush head 14 water inlet 15 water outlet 16 stepped hole 17 light guide 18 light transmission part

2 bottom cover 21 positive pole spring 22 fixing piece 23 contact point 24 sealing ring

3 circuit connecting unit 31 holder 32 circuit board 321 circuit board 322 second circuit board 323 wire 33 positive pole conducting piece 34 negative pole spring 35 head spring 36 vibrating unit

4 panel unit 41 panel 411, panel 412, second panel 42, elastic part 421, movable part 423, elastic part 43, push button 44, sealing rubber-coated

5 sealing structure 51 conductive adhesive 52 conductive foam

6 cell

A longitudinal direction U front side D back side F front side B back side.

Detailed Description

Exemplary embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the detailed description is only intended to teach one skilled in the art how to practice the invention, and is not intended to exhaust all possible ways of practicing the invention, nor is it intended to limit the scope of the invention.

Unless otherwise specified, in the following description, the longitudinal direction a refers to the longitudinal direction of the negative ion electric toothbrush, the front side U refers to the front side (head side) in the longitudinal direction, and the rear side D refers to the rear side (bottom cover side) in the longitudinal direction. The front face F refers to the front face of the anion electric toothbrush, namely the direction in which the bristles of the anion electric toothbrush face, and the back face B refers to the back face of the anion electric toothbrush, namely the direction in which the bristles of the anion electric toothbrush face away.

As shown in fig. 1 to 11, the present invention provides kinds of anion electric toothbrushes, which include a main body unit 1, a bottom cover 2, a circuit connection unit 3, a panel unit 4, and a sealing structure 5.

As shown in fig. 1 and 2, the body unit 1 includes a body 11, a metal rod 12 and a brush head 13, the body 11 is substantially cylindrical with a cavity formed therein, an end (rear side end) in a length direction a of the body 11 is provided with a mounting port, the metal rod 12 extends into the cavity through the body 11 and is convexly disposed at another end (front side end) in the length direction a of the body 11, the metal rod 12 and the body 11 can be connected by injection molding to form body, so that there is no gap between them and no water leakage occurs, the brush head 13 is detachably sleeved on the metal rod 12, the brush head 13 can be detached to replace a new brush head 13 after using period of time, the brush head 13 is provided with a water inlet 14 and a water outlet 15, the water inlet 14 and the water outlet 15 are communicated to the metal rod 12, so that liquid (such as saliva) in the cavity can wet the metal rod 12 through the water inlet 14, and the metal rod 12 can be electrically connected to the oral.

The body 11 is provided with a stepped hole 16 (see fig. 5) for mounting an elastic pin 42 described later, and the diameter of the stepped hole 16 is larger at a radially outer portion of the body 11 than at a radially inner portion of the body 11, so that the elastic pin 42 can be mounted to the body 11 from the radially outer side.

The main body unit 1 further includes a light guide portion 17 and a light transmitting portion 18, the light guide portion 17 may be connected to the circuit connection unit 3 (the holder 31), the light transmitting portion 18 is located near the light guide portion 17, and the light transmitting portion 18 is disposed in a groove on the surface of the main body 11, the wall thickness of the groove being thin, it being understood that the main body 11 may be made of plastic, and light may be transmitted when the thickness of the plastic is thin, and light emitted from the indicator lamp of the circuit connection unit 3( -th circuit board 321) may be guided by the light guide portion 17 and emitted through the light transmitting portion 18.

As shown in fig. 1, 2, 9 and 10, the bottom cover 2 is a substantially cylindrical shape with a bottom and is detachably attached to a mounting port of the main body 11, and the battery 6 can be housed in a cavity inside the main body 11 through the mounting port. The bottom cover 2 is provided with a positive electrode spring 21 and a fixing member 22, the positive electrode spring 21 is mounted to the bottom cover 2 by the fixing member 22, and the fixing member 22 is used for fixing and supporting the positive electrode spring 21. The positive electrode spring 21 may be formed by bending a metal into various shapes, and the positive electrode of the battery 6 may be electrically connected to the circuit connecting unit 3 (the circuit board 32) through the positive electrode spring 21. The positive electrode spring 21 has a contact portion 23, and the contact portion 23 is elastically deformable in a radial direction of the bottom cover 2, for example, toward a radially inner side when contacting the circuit connection unit 3.

A sealing ring 24, for example an O-ring, is provided between the bottom cap 2 and the body 11. Specifically, the lower cap 2 may be provided with an annular groove such that the packing 24 is fitted into the groove and clamped between the outer circumferential surface of the lower cap 2 and the inner circumferential surface of the body 11. The packing 24 prevents liquid from penetrating into the gap between the lower cap 2 and the main body 11, thereby performing a waterproof function.

As shown in fig. 1, 2, 10 and 11, the circuit connection unit 3 is provided in a cavity inside the main body 11. The circuit connection unit 3 includes a holder 31, a circuit board 32, a positive electrode conduction piece 33, and a negative electrode spring 34.

The circuit connecting unit 3 is used for connecting the battery 6 and the circuit board 32, so that the battery 6 supplies power to the circuit board 32.

The circuit board 32 and the negative spring 34 are connected to the bracket 31, the negative spring 34 is located at the front side U of the cavity, and the negative spring 34 is connected to the battery 6 and the circuit board 32, so as to conduct the negative electrode of the battery 6 with the circuit board 32, and supply power to the circuit board 32 through the battery 6. The battery 6 may be pressed against the negative spring 34 in the longitudinal direction when being mounted in the body 11, so that the negative spring 34 is compressed in the longitudinal direction a.

The positive electrode lead-through piece 33 is connected to the circuit board 32, the positive electrode lead-through piece 33 is located at the rear side D of the cavity, and when the bottom cover 2 and the main body 11 are mounted to the cover , the contact portion 23 of the positive electrode spring 21 can contact the positive electrode lead-through piece 33 to conduct the positive electrode of the battery 6 to the circuit board 32.

The circuit board 32 may have a plurality of pieces, for example, the circuit board 32 includes th circuit board 321 and second circuit board 322, the th circuit board 321 and second circuit board 322 are conducted through the conductive wire 323, the th circuit board 321 is located on the front face F of the cavity, the second circuit board 322 is located on the back face b of the cavity, the th circuit board 321 is provided with a switch capable of being controlled by pressing and an indicator light capable of emitting light, and the positive conducting piece 33 and the negative spring 34 are both conducted with the th circuit board 321.

The circuit board 32( th circuit board 321) is further connected with a head spring 35, the end of the head spring 35 is connected to the circuit board 32, the end abuts against the metal rod 12, so that the circuit board 32 and the metal rod 12 are electrically connected, and the head spring 35 can be compressed along the length direction A to keep abutting against the metal rod 12.

It can be understood that the positive spring 21, the negative spring 34 and the head spring 35 are all elastic, and the two components are electrically connected by using the elastic springs, so that the electrical connection can be kept stable, and poor contact of the electrical connection due to vibration and the like can be avoided.

The bracket 31 is further connected with a vibration unit 36, the vibration unit 36 is located on the front side U of the bracket 31 in the length direction A, and the negative ion electric toothbrush can be driven to vibrate integrally by driving the vibration unit 36 to achieve a better tooth cleaning effect. The vibration unit 36 may be a vibration motor.

As shown in fig. 1 to 8, the panel unit 4 includes a panel 41, a pogo pin 42, a button 43, and a sealing rubber 44.

The panel 41 covers the surface of the body 11 mounted with the pogo pin 42, and the surface of the body 11 may be provided with a groove so that the panel 41 is inserted into the groove and connected with the body 11.

The latch 42 is inserted into the stepped hole 16 and passes through the body 11, so that the latch 42 connects the circuit board 32 and the panel 41, and the panel 41 is made of a conductive material, for example, a metal material, so that the panel 41 and the circuit board 32 are electrically connected through the latch 42.

As shown in fig. 5 and 8, the latch 42 is generally cylindrical, the latch 42 includes a mounting portion 421 and a movable portion 422, the mounting portion 421 is provided with a guide portion, the movable portion 422 is mounted in cooperation with the guide portion so that the movable portion 422 can move in a longitudinal direction (axial direction) of the latch 42 with respect to the mounting portion 421, the guide portion is provided with an elastic member 423 such as a spring, and the elastic member 423 is located between the mounting portion 421 and the movable portion 422 and can move in the axial direction of the latch 42 so as to compress the elastic member 423.

The mounting portion 421 has a stepped shape and can be fitted into the stepped hole 16 of the main body 11 to bring the movable portion 422 into contact with the circuit board 32.

The panel 41 may be plural, for example, the panel 41 includes an th panel 411 and a second panel 412, the th panel 411 and the second panel 412 are spaced apart in the circumferential direction of the main body 11, the th panel 411 is provided on the front face F of the main body 11, and the second panel 412 is provided on the rear face b of the main body 11. the provision of the plural panels 41 ensures that the portion covered by the panel 41 can be grasped in use of the toothbrush.

The th panel 411 is provided with holes through which the buttons 43 can pass, the sealing rubber 44 is arranged between the th panel 411 and the main body 11 and covers the holes on the th panel 411, the sealing rubber 44 and the th panel 41 can be formed into bodies by injection molding, and pressing the buttons 43 can control the switches on the th circuit board 321.

, two buttons 43 can be provided for different functions, for example, buttons for controlling the switch and buttons for adjusting the vibration position of the vibration unit 36.

As shown in fig. 1, 5 to 8, the sealing structure 5 includes a conductive paste 51, the sealing structure 5 is disposed between the pogo pin 42 and the panel 41 for sealing a gap between the pogo pin 42 and the stepped hole 16, and the conductive paste 51 is filled in the stepped hole 16.

It is understood that the conductive paste 51 may be waterproof, and that applying the conductive paste 51 to the pogo pin 42 may serve to seal between the pogo pin 42 and the body 11 waterproof.

, the sealing structure 5 further includes a conductive foam 52, the conductive foam 52 is disposed between the conductive adhesive 51 and the panel 41, and the conductive foam 52 has elasticity and can fill the gap between the conductive adhesive 51 and the panel 41.

It can be understood that different materials have different deformation coefficients affected by temperature, and particularly, the difference between the deformation coefficients of the elastic needle 42 made of metal and the deformation coefficient of the non-metal conductive adhesive 51 is large, so that a gap may exist between the conductive adhesive 51 and the panel 41 in an environment with temperature change, and the existence of such a gap is easy to cause poor contact between the elastic needle 42 and the panel 41, and the conductive foam 52 with elasticity as a filler can solve the problem.

the conductive foam 52 is located at the edge of the conductive adhesive 51, and the conductive foam 52 and the conductive adhesive 51 partially overlap in the direction from the outside of the cavity to the inside of the cavity, it can be understood that the conductive adhesive 51 can harden the overlapping part of the conductive foam 52 and the conductive adhesive 51 and lose elasticity when cured, which can affect the effect of the conductive foam 52 as a filler, in the present invention, the part of the conductive foam 52 overlaps the conductive adhesive 51, and the rest of the conductive foam 52 does not overlap the conductive adhesive 51, and the rest can still keep elasticity to prevent the above situation.

The working principle of the anion electric toothbrush is described below.

The positive electrode of the battery 6 is connected to the circuit board 32 via the positive electrode spring 21 and the positive electrode conduction piece 33, and the negative electrode of the battery 6 is connected to the circuit board 32 via the negative electrode spring 34, so that the circuit board 32 can be energized. The metal rod 12 is connected to the circuit board 32 through the head spring 35 and then to the negative pole of the battery 6, and the panel 41 is connected to the circuit board 32 through the pogo pin 42 and then to the positive pole of the battery 6. In brushing teeth, a person's hand touches the faceplate 41 and the metal rod 12 is inserted into the oral cavity, connecting the person to the electrical circuit. That is, the battery 6, the metal rod 12, the panel 41 and the human body form a closed circuit when brushing teeth, thereby releasing negative ions into the oral cavity via the metal rod 12.

Claims

1, kinds of anion electric toothbrush, characterized by that, it includes:

a body (11), the body (11) forming a cavity;

a circuit board (32), the circuit board (32) disposed within the cavity;

a pogo pin (42), the pogo pin (42) embedded in a sidewall of the body (11) defining the cavity, the pogo pin (42) being in contact with the circuit board (32);

panel (41), panel (41) cover is installed install bullet needle (42) the surface of main part (11), panel (41) with be provided with between bullet needle (42) and be used for waterproof seal structure (5), make panel (41) with bullet needle (42) indirectly contact, bullet needle (42) panel (41) with seal structure (5) all can electrically conduct, make panel (41) with circuit board (32) electricity is connected.

2. The anion electric toothbrush according to claim 1, wherein said sealing structure (5) comprises a conductive glue (51).

3. The anion electric toothbrush according to claim 2, wherein said sealing structure (5) further comprises a conductive foam (52), said conductive foam (52) being disposed between said conductive glue (51) and said face plate (41).

4. The negative ion electric toothbrush according to claim 3, wherein the conductive foam (52) and the conductive paste (51) partially overlap in a direction from the outside of the cavity toward the inside of the cavity, and a part of the conductive foam (52) does not overlap with the conductive paste (51).

5. The negative ion electric toothbrush according to , wherein the main body (11) is provided with a mounting opening for a battery (6) to be mounted in the cavity, the battery (6) being used for supplying power to the circuit board (32), the negative ion electric toothbrush further comprising a bottom cover (2), the bottom cover (2) being detachably mounted to the mounting opening so as to close the cavity, a sealing ring (24) being provided between the bottom cover (2) and the main body (11).

6. The anion electric toothbrush according to any of claims 1 to 4, wherein the panel (41) comprises a panel (411) and a second panel (412), the panel (411) and the second panel (412) are spaced apart in a circumferential direction of the main body (11), the circuit board (32) comprises a circuit board (321) and a second circuit board (322), the circuit board (321) and the second circuit board (322) are in conduction, the panel (411) and the circuit board (321) are in conduction through the pogo pin (42) and the sealing structure (5), and the second panel (412) and the second circuit board (322) are in conduction through the pogo pin (42) and the sealing structure (5).

7. The negative ion electric toothbrush according to of any one of claims 1 to 4, further comprising a metal rod (12) extending into the cavity, the metal rod (12) being convexly provided to the main body (11) in a length direction.

8. The negative-ion electric toothbrush according to claim 7, characterized in that the faceplate (41) is connectable to a positive pole of a battery (6) via the circuit board (32), and the metal stem (12) is connectable to a negative pole of the battery (6) via the circuit board (32).

9. The anion electric toothbrush according to claim 7, characterized in that said metal rod (12) and said circuit board (32) are conducted by a spring, said spring being compressed to abut said metal rod (12).

10. The anion electric toothbrush according to of claims 1 to 4, wherein a vibration unit is arranged in the cavity of the main body (11), and the vibration unit can drive the anion electric toothbrush to vibrate.