CN213156652U - Electric toothbrush and brush holder and charging seat thereof - Google Patents
Electric toothbrush and brush holder and charging seat thereof Download PDFInfo
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- CN213156652U CN213156652U CN202020642103.9U CN202020642103U CN213156652U CN 213156652 U CN213156652 U CN 213156652U CN 202020642103 U CN202020642103 U CN 202020642103U CN 213156652 U CN213156652 U CN 213156652U
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Abstract
The utility model discloses an electric toothbrush and a brush holder and a charging seat thereof, wherein the brush holder comprises a brush holder main body and an end cover fixedly arranged at the rear end of the brush holder main body, a magnet and a positive and negative contact element are fixed on the end cover, the contact main bodies of the positive and negative contact element are ring bodies, and the two contact main bodies are respectively positioned on two concentric circles at intervals inside and outside; the projection of the magnet on the bottom wall of the end cover is positioned at the circle center of the two contact main bodies. The charging seat comprises a shell, wherein a magnet is fixed in the shell, positive and negative elastic conductive contacts are fixed on the shell, each contact is at least two and is respectively and uniformly distributed on two concentric circles at intervals, the magnet is fixed on the inner side of a top plate of an upper cover of the shell and is positioned at the circle center positions of the two concentric circles, and the diameters of the two concentric circles are the same as the diameter of the concentric circle where a contact main body of the corresponding contact element of the brush handle is positioned. When charging, the brush handle and the charging seat are in magnetic attraction butt joint at any angle, and the contact piece can be pressed to contact the elastic conductive contact to realize electric connection.
Description
Technical Field
The utility model relates to an electric toothbrush technical field still relates to electric toothbrush charging seat technical field simultaneously.
Background
Chinese patent ZL201721497637.1 discloses a magnetic suction charging device for an electric toothbrush, which comprises a first magnetic connecting end arranged at the tail end of a handle of the electric toothbrush and a second magnetic connecting end arranged on a charging seat, wherein the first magnetic connecting end comprises two first magnets arranged at intervals and positive and negative contacts arranged at intervals on a connecting line of the two magnets, and the positive and negative contacts are correspondingly connected with positive and negative electrodes of a battery of the electric toothbrush; the second magnetic connecting end comprises two second magnets, a positive electrode probe and a negative electrode probe, the two magnetic connecting ends are close to each other when the electric toothbrush is charged, the two second magnets are correspondingly attracted with the two first magnets respectively, the two magnetic connecting ends are attracted together, and the positive electrode probe and the negative electrode probe are correspondingly electrically connected with the positive electrode contact and the negative electrode contact at the moment, so that the electric toothbrush is charged; in order to prevent the two magnetic connecting ends from shifting during charging, the butt joint surfaces of the two connecting ends are correspondingly provided with a groove and a lug structure which are mutually inserted and positioned, and the groove and the lug are arranged at positions deviating from the connecting line of the positive contact and the negative contact. Therefore, when the charging device is charged, the two magnetic connecting ends can be mutually attracted and connected to be electrified to work only by aligning the directions. In daily use, a user needs to find the direction of the groove bump firstly and then tries to joint, the groove bump can be successfully jointed only by aligning the position by trying to joint for many times instead of being successfully jointed once, and great inconvenience is brought to the user.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electric toothbrush who can once dock successfully in order to realize charging without first alignment butt joint position when charging. Simultaneously, the utility model discloses still provide this electric toothbrush's brush holder and with this electric toothbrush supporting charging seat that charges for it.
In order to realize the purpose, the brush handle of the electric toothbrush of the utility model adopts the following technical proposal: the brush holder of the electric toothbrush comprises a brush holder main body and an end cover fixedly arranged at the rear end of the brush holder main body, wherein a magnet attracted with a charging seat of the electric toothbrush and a positive contact piece and a negative contact piece which are in press-contact conductive connection are fixed on the end cover; or the contact main bodies of the positive and negative contact pieces are large semi-circular ring bodies, and the two contact main bodies are oppositely arranged on two concentric circles spaced from each other inside and outside from each other left and right; the projection of the magnet on the bottom wall of the end cover is positioned at the circle center positions of the two contact main bodies; the diameters of the two concentric circles are the same as the diameters of the concentric circles where the corresponding elastic conductive contacts of the electric toothbrush charging seat are located.
The end cover comprises a cover body and a cover cap, the cover body is provided with a central column and a side wall which is coaxially sleeved on the periphery of the central column and is in a sleeve body structure, an annular space is formed between the central column and the side wall, the rear end of the annular space is provided with an annular bottom wall, and the rear section of the central column is in a hollow hole structure; the front end of the side wall is matched and connected with the shell of the brush handle main body, and the rear end of the side wall is integrally connected with the hole wall at the rear end of the central column through an annular bottom wall; the nut cap is fixedly covered at the hole at the rear end of the central column, and the magnet is positioned in the hole of the central column; and the connecting ends of the positive and negative contacts penetrate through the annular bottom wall and extend into the annular space.
The central column is of an inverted cup-shaped structure, and the cover body is fixedly connected to the brush handle main body through screws arranged on the cup bottom from the cup opening of the central column.
The wiring end comprises a contact pin integrally arranged on the contact main body, the contact pin penetrates through the annular bottom wall and extends to the annular space, and a wiring terminal is inserted into the end portion of the contact pin.
The nut cap is spirally arranged at the cup mouth of the central column, and the magnet is fixed in the magnet positioning counter bore on the inner side of the nut cap.
Concave-convex patterns for increasing the friction force of screwing and beautifying injection molding shrinkage marks are arranged on the outer surface of the cover bottom of the cover cap; the contact main bodies of the positive and negative contact pieces are pressed in corresponding grooves on the outer surface of the annular bottom wall, and guide needles for guiding the press-fitting insertion into guide insertion holes in the annular bottom wall are arranged on the contact main bodies; the annular space is filled with a sealant for sealing the positive and negative contact pieces and fixing the connecting terminal; an anti-falling top column which extends towards the front end of the cover body and is used for preventing the elastic clamping claw at the rear end of the brush holder main body from falling off the brush holder shell is also arranged in the cover body.
The utility model discloses electric toothbrush adopts following technical scheme: the electric toothbrush comprises a brush head and a brush handle of the electric toothbrush.
The utility model discloses electric toothbrush charging seat adopts following technical scheme: the electric toothbrush charging seat comprises a shell with an upper cover and a bottom cover, wherein a magnet used for attracting a charging end of an electric toothbrush brush holder is fixed in the shell, a positive elastic conductive contact and a negative elastic conductive contact which are used for being in press-contact conductive connection with the charging end of the electric toothbrush brush holder are fixed on the shell, the positive elastic conductive contact and the negative elastic conductive contact are at least two and are respectively and uniformly distributed on two concentric circles which are spaced from inside to outside, the magnet is fixed on the inner side of a top plate of the upper cover of the shell and positioned at the circle center positions of the two concentric circles, and the diameters of the two concentric circles are the same as the diameter of the concentric circle where a contact main body of a.
The positive and negative elastic conductive contacts are positioned from bottom to top and inserted on a top plate of the upper cover of the shell, and sealant for fixing the magnet and sealing and fixing the elastic conductive contacts is filled in the upper cover of the shell.
The magnet is fixed in a magnet positioning counter bore on the inner side of a top plate of the upper cover of the shell; the shell bottom cover and the shell upper cover are fixed together through ultrasonic welding; and an annular check ring for reducing the glue filling area is arranged on the periphery of the elastic conductive contact close to the outer concentric circle on the inner side of the top plate of the upper cover of the shell.
The utility model discloses when using, press close to when charging seat and electric toothbrush's brush holder rear end, under the effect of magnet, the charging seat is inhaled mutually with the brush holder and closely laminates butt joint together to with on the charging seat just, negative pole elasticity conductive contact and the brush holder just, the negative pole contact closely presses to touch and forms electrically conductive connection together, realizes charging, when being full of with charging seat and brush holder separately can. Because the charging seat is just, negative pole elasticity conductive contact has all adopted two at least contacts and respectively evenly distributed including two concentric circles of interval, and just on the electric toothbrush brush holder end cover, the contact subject of negative pole contact has then adopted torus or big semicircle torus structure, and two contact subjects locate two concentric circles of same inside and outside interval, and simultaneously, magnet in the charging seat all sets up on the centre of a circle of corresponding concentric circles with magnet in the brush holder, such structure sets up, when charging, the charging seat can both realize electrically conductive intercommunication with the brush holder in arbitrary angle butt joint, that is to say, the butt joint position need not be aligned earlier, as long as inhale the two together just can the butt joint successfully realize charging, the butt joint that charges is simple quick, very big convenience has been brought for the user. In addition, because the two magnets are positioned at the center of the concentric circles, the intensity of the magnetic attraction force is the same when the magnets are butted at any angle, and meanwhile, the press contact force generated between each elastic conductive contact of the positive pole or the negative pole and the corresponding contact piece is also balanced, so that the press contact conductive connection between the charging seat and the brush handle has higher reliability.
Drawings
FIG. 1 is an exploded view of an embodiment of the electric toothbrush of the present invention and an embodiment of the handle of the electric toothbrush of the present invention;
FIG. 2 is a schematic view of the construction of the handle of FIG. 1;
fig. 3 is an enlarged view of a portion of the rear end of the handle of fig. 2;
fig. 4 is a perspective view of the end cap of the handle of fig. 2;
FIG. 5 is a schematic perspective view of the cap of FIG. 2;
FIG. 6 is a schematic perspective view of the positive or negative contact of FIG. 2;
fig. 7 is a schematic structural diagram of an embodiment of the charging stand of the present invention;
FIG. 8 is a schematic perspective view of FIG. 7;
FIG. 9 is an exploded view of FIG. 8;
fig. 10 is a drawing showing the toothbrush handle and the charging seat of the electric toothbrush of the present invention in a charging state.
Detailed Description
The embodiment of the handle of the electric toothbrush shown in fig. 1-6 comprises a handle body 10 and an end cap fixed at the rear end of the handle body, the handle body 10 is a hand-held part having a housing 11, an electric toothbrush motor and a rechargeable battery, and the end cap is a part for charging the rechargeable battery and connected to an electric toothbrush charging seat.
The end cover comprises a cover body 13, a cover cap 18, a magnet 17, a positive electrode contact element 14 and a negative electrode contact element 15, wherein the cover body 13 is provided with a central column 19, the rear section of the central column is of a hollow hole structure, the periphery of the central column is coaxially sleeved with a side wall in a sleeve body structure, an annular space 20 is arranged between the central column and the side wall, the rear end of the annular space is provided with an annular bottom wall 21, the rear end of the side wall is integrally connected with the hole wall of the rear end of the central column through the annular bottom wall 21, so that a central hole is formed in the center of the bottom surface of the cover body, and the; the cap 18 is fixedly covered at the orifice at the rear end of the central column to seal the orifice of the central hole, and the magnet 17 is fixed in the central hole so as to be attracted with a magnet in the charging seat of the electric toothbrush to generate suction force to butt the brush handle of the electric toothbrush and the charging seat together; the contact bodies of the positive and negative contacts 14 and 15 are circular bodies and fixed in respective grooves on the outer surface of the annular bottom wall 21, the two contact bodies are respectively positioned on two concentric circles spaced from the inside and the outside, the connecting ends of the positive and negative contacts pass through the annular bottom wall 21 and extend into the annular space to be electrically connected with a lead (not shown in the figure) of the brush holder charging circuit, and the contact bodies of the two contacts are used for being in press-contact conductive connection with the positive and negative elastic conductive contacts of the charging stand during charging.
In this embodiment, the central post 19 is of an inverted cup-shaped structure, so that the cover 13 can be fixedly connected to the handle body by a screw 16 inserted into the cup opening at the rear end of the central post (i.e., the opening of the central hole) and mounted on the bottom of the cup. In other embodiments, the central column may be a sleeve structure, and the cover may be clamped or bonded to the handle body by a connection structure at the front end of the side wall of the cover.
In this embodiment, the cap 18 is fixed at the orifice at the rear end of the central column by a threaded connection, and the magnet 17 is fixed in the magnet positioning counter bore on the inner side of the cap by an adhesive method, so that the magnet is convenient to install and position, and the magnet can be close to the outer surface of the bottom end as much as possible, so that the magnet is closer to the charging seat when the magnet is in butt joint with the charging seat for charging, thereby obtaining stronger magnetic attraction force and ensuring the firmness of magnetic attraction butt joint; in addition, in order to facilitate the installation of the cap, the outer surface of the cap bottom of the cap is also provided with concave-convex patterns 28, as shown in fig. 5, so that the screwing friction force can be increased, and the injection molding shrinkage mark on the surface of the cap can be beautified. In other embodiments, the cap 18 can be fixed at the opening at the rear end of the central column by means of a snap connection, and in this case, the magnet 17 can be fixed on the inner surface of the cap, or on the inner wall of the hole in the central column, as long as the position of the magnet is as close as possible to the outer surface of the bottom end of the cap, and the projection of the magnet on the bottom wall of the end cap is ensured to be at the center position of the two contact bodies.
In this embodiment, as shown in fig. 6, the positive and negative contacts 14 and 15 are in a circular ring structure, and a contact main body 25 of the contact is integrally provided with a contact pin 26 and a guide pin 27; the contact main body 25 is assembled in a corresponding groove on the outer surface of the annular bottom wall in a press-fitting mode, the contact pin 26 penetrates through a jack on the annular bottom wall to extend into the annular space, in order to be connected with a charging lead conveniently and reliably, the wiring terminal 12 is further inserted into the end portion of the contact pin 26, the guide pin 27 is inserted into a guide jack on the annular bottom wall, and the contact pin and the guide pin play a role in guiding when the contact element is pressed and pressed obliquely. In other embodiments, the contact bodies of the positive and negative contacts may be in a structure of a large semicircular ring, and in this case, the two contact bodies are oppositely arranged on two concentric circles spaced from each other inside and outside; in addition, the end of the contact pin 26 on the contact body can be designed into a structure capable of being connected with a lead and directly used as a connecting end for connecting a charging lead; the positive and negative contact pieces can also be fixed on the cover body in a pre-embedded mode.
In this embodiment, the annular space of the cover body 13 is filled with the sealant 22, so that not only is good sealing of the positive and negative electrode contacts realized and higher safety is obtained, but also the sealant can firmly bond the contact pin 26 and the guide pin 27 of the contact element, so that the combination of the positive and negative electrode contacts and the cover body can be firmer, and in addition, the sealant also has the function of fixing the wiring terminal 12. In other embodiments, the seal may be achieved by providing a sealing structure between the end cap and the handle housing 11.
In this embodiment, an elastic claw connecting structure is provided between the brush holder housing 11 and the inner part of the brush holder at the rear end of the brush holder body of the electric toothbrush, and an anti-release top pillar 24 extending to the front end of the cover body is further provided in the cover body 13 in order to prevent the elastic claw 23 from coming out of the slot of the brush holder housing.
In this embodiment, the end cap may also adopt other structures, for example, a cap structure without a central column is adopted, but as long as it is ensured that the contact main bodies of the positive and negative contact members are arranged on two concentric circles spaced from the inside to the outside, and the projection of the magnet on the bottom wall of the end cap is located at the circle center positions of the two contact main bodies, the purpose of successfully realizing charging by one-time docking without aligning the docking direction during charging can be achieved.
The embodiment of the electric toothbrush provided by the utility model is shown in fig. 1-6, which comprises a brush holder and a brush head 9 detachably connected with the front end of the brush holder, the structure of the brush holder is the same as that of the brush holder of the electric toothbrush, and the detailed description is omitted here.
The utility model provides an embodiment of electric toothbrush charging seat is shown in fig. 7-10, it is including the casing that has upper cover 4 and bottom 1, casing upper cover 4 includes roof and the circumference confined curb plate that sets up along roof edge circumference an organic whole, be equipped with on the roof just, negative pole elasticity conductive contact 31, 32 and magnet 2, just, the quantity of negative pole elasticity conductive contact respectively be two, and two concentric circles of interval including the equipartition respectively, magnet 2 fixes on the roof inboard and is in the centre of a circle position of two concentric circles. The shell bottom cover 1 is fixed at the bottom end of the shell upper cover side plate through ultrasonic welding, and the shell upper cover and the shell bottom cover are integrated through welding, so that good sealing is formed at the bottom of the shell upper cover. In fig. 8 and 9, 5 is a decorative ring, and 6 is a USB power cord of the charging stand.
In the embodiment, the elastic conductive contacts are of a spring needle structure and are positioned from bottom to top and inserted into contact jacks formed in the top plate, contacts of the contacts protrude out of the top plate, and the elastic conductive contacts are sealed and fixed on the top plate through sealant filled in the upper cover of the shell. In specific implementation, the positive and negative elastic conductive contacts can be arranged in a straight line or in a cross shape; the number of each elastic conductive contact can also be set according to the requirement, for example, the number can be two, three or four, and the like, as long as the elastic conductive contacts are uniformly arranged on the circle.
In the concrete implementation, in order to reduce the glue filling area and reduce the using amount of the sealing glue, the inner side of the top plate is further provided with an annular retaining ring 8, the annular retaining ring is arranged on the periphery of the elastic conductive contact close to the outer concentric circle, and the sealing glue is filled in the area surrounded by the annular retaining ring 8.
In the charging seat of the embodiment, the elastic conductive contact of the charging seat is fixed on the top plate and is far away from the bottom cover of the shell, so that the charging seat obtains certain safety; the safety is further enhanced through glue pouring and sealing; the bottom cover of the shell and the upper cover of the shell are welded together, and the safety of the charging seat is further enhanced.
The utility model discloses when charging, see figure 10 and show, press close to electric toothbrush brush holder rear end and charging seat, magnet 17 and 2 produced magnetic attraction of magnet inter attraction are in the same place brush holder and charging seat butt joint, because the charging seat is just, the diameter of two concentric circles that negative pole elasticity conductive contact located is respectively just with the electric toothbrush brush holder, the diameter of the concentric circle that the contact main part of negative pole contact spare was located is the same, under the effect of magnetic attraction, just, the negative pole contact spare corresponds the pressure touch just, negative pole elasticity conductive contact (can be interior just outside the burden, can be interior outside the burden just), form electrically conductive connection, for brush holder charging circuit switch-on, realize charging.
Claims (10)
1. Electric toothbrush's brush holder, including brush holder main part and the end cover of fixed mounting in brush holder main part rear end, be fixed with on the end cover be used for with electric toothbrush charging seat attract each other magnet with press touch conductive connection just, negative pole contact, its characterized in that: the contact main bodies of the positive and negative contact pieces are annular bodies, and the two contact main bodies are respectively positioned on two concentric circles which are spaced from each other inside and outside; or the contact main bodies of the positive and negative contact pieces are large semi-circular ring bodies, and the two contact main bodies are oppositely arranged on two concentric circles spaced from each other inside and outside from each other left and right; the projection of the magnet on the bottom wall of the end cover is positioned at the circle center positions of the two contact main bodies; the diameters of the two concentric circles are the same as the diameters of the concentric circles where the corresponding elastic conductive contacts of the electric toothbrush charging seat are located.
2. The handle of an electric toothbrush of claim 1, wherein: the end cover comprises a cover body and a cover cap, the cover body is provided with a central column and a side wall which is coaxially sleeved on the periphery of the central column and is in a sleeve body structure, an annular space is formed between the central column and the side wall, the rear end of the annular space is provided with an annular bottom wall, and the rear section of the central column is in a hollow hole structure; the front end of the side wall is matched and connected with the shell of the brush handle main body, and the rear end of the side wall is integrally connected with the hole wall at the rear end of the central column through an annular bottom wall; the nut cap is fixedly covered at the hole at the rear end of the central column, and the magnet is positioned in the hole of the central column; and the connecting ends of the positive and negative contacts penetrate through the annular bottom wall and extend into the annular space.
3. The handle of an electric toothbrush of claim 2, wherein: the central column is of an inverted cup-shaped structure, and the cover body is fixedly connected to the brush handle main body through screws arranged on the cup bottom from the cup opening of the central column.
4. The handle of an electric toothbrush of claim 2, wherein: the wiring end comprises a contact pin integrally arranged on the contact main body, the contact pin penetrates through the annular bottom wall and extends to the annular space, and a wiring terminal is inserted into the end portion of the contact pin.
5. The handle of an electric toothbrush according to any of claims 2-4, wherein: the nut cap is spirally arranged at the cup mouth of the central column, and the magnet is fixed in the magnet positioning counter bore on the inner side of the nut cap.
6. The handle of an electric toothbrush of claim 5, wherein: concave-convex patterns for increasing the screwing friction force are arranged on the outer surface of the cover bottom of the cover cap; the contact main bodies of the positive and negative contact pieces are pressed in corresponding grooves on the outer surface of the annular bottom wall, and guide needles for guiding the press-fitting insertion into guide insertion holes in the annular bottom wall are arranged on the contact main bodies; the annular space is filled with a sealant for sealing the positive and negative contact pieces and fixing the connecting terminal; an anti-falling top column which extends towards the front end of the cover body and is used for preventing the elastic clamping claw at the rear end of the brush holder main body from falling off the brush holder shell is also arranged in the cover body.
7. Electric toothbrush, including the brush head, its characterized in that: further comprising a handle of the electric toothbrush according to any one of claims 1 to 6.
8. Electric toothbrush charging seat, including the casing that has upper cover and bottom, the casing internal fixation has and is used for charging the end magnet of inhaling mutually with the electric toothbrush brush holder, is fixed with on the casing to be used for charging the end with the electric toothbrush brush holder and presses and touch electrically conductive positive, negative pole elasticity conductive contact who is connected, its characterized in that: the positive and negative elastic conductive contacts are at least two and are respectively and uniformly distributed on two concentric circles spaced from the inside to the outside, the magnet is fixed on the inner side of the top plate of the upper cover of the shell and positioned at the circle centers of the two concentric circles, and the diameters of the two concentric circles are the same as the diameter of the concentric circle where the contact main body of the corresponding contact element of the electric toothbrush handle is positioned.
9. The charging stand for electric toothbrush according to claim 8, wherein: the positive and negative elastic conductive contacts are positioned from bottom to top and inserted on a top plate of the upper cover of the shell, and sealant for fixing the magnet and sealing and fixing the elastic conductive contacts is filled in the upper cover of the shell.
10. The charging stand for electric toothbrush according to claim 9, wherein: the magnet is fixed in a magnet positioning counter bore on the inner side of a top plate of the upper cover of the shell; the shell bottom cover and the shell upper cover are fixed together through ultrasonic welding; and an annular check ring for reducing the glue filling area is arranged on the periphery of the elastic conductive contact close to the outer concentric circle on the inner side of the top plate of the upper cover of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020642103.9U CN213156652U (en) | 2020-04-25 | 2020-04-25 | Electric toothbrush and brush holder and charging seat thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020642103.9U CN213156652U (en) | 2020-04-25 | 2020-04-25 | Electric toothbrush and brush holder and charging seat thereof |
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| Publication Number | Publication Date |
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| CN213156652U true CN213156652U (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020642103.9U Active CN213156652U (en) | 2020-04-25 | 2020-04-25 | Electric toothbrush and brush holder and charging seat thereof |
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| CN (1) | CN213156652U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114261292A (en) * | 2021-12-02 | 2022-04-01 | 歌尔科技有限公司 | Unmanned aerial vehicle system |
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2020
- 2020-04-25 CN CN202020642103.9U patent/CN213156652U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114261292A (en) * | 2021-12-02 | 2022-04-01 | 歌尔科技有限公司 | Unmanned aerial vehicle system |
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