CN215071713U - Electric toothbrush driver with wireless charging function - Google Patents

Abstract

The utility model relates to an electric toothbrush driver with wireless function of charging, including straight tube form casing, the casing front end has the end plate and has seted up the shaft hole on the end plate, and casing rear end sealing connection has the rear end cap, and the front portion is provided with the motor in the casing, and interior rear portion is provided with circuit board and chargeable battery, the rear portion still is provided with a plurality of receiving coils in the casing, and a plurality of receiving coil equipartitions are on shells inner wall, and each receiving coil connects in parallel on anodal charging terminal and negative pole charging terminal, and anodal charging terminal and negative pole charging terminal are connected respectively on the circuit board and just, negative pole electric connection, and the battery still with motor electric connection simultaneously for provide the electric energy to the motor. The electric toothbrush driver has high wireless charging efficiency on the premise of not increasing the length, and is suitable for a multi-angle complex wireless charging environment.

Description

Electric toothbrush driver with wireless charging function

Technical Field

The utility model relates to an electric toothbrush driver with wireless function of charging.

Background

Along with the continuous development of the charging technology, the wireless charging technology is gradually applied to the electric toothbrush, the power receiving coil is arranged at the bottom end of the electric toothbrush in the conventional wireless charging technology of the electric toothbrush, the electric toothbrush is inserted into the charger, the power transmission coil matched with the power receiving coil is arranged in the charger, an alternating magnetic field is generated through the change of the current frequency of the power transmission coil, and the alternating magnetic field enables the current to be generated in the power receiving coil, so that the battery of the electric toothbrush is charged.

Because the diameter of the electric toothbrush driver is smaller, the charging efficiency of the power receiving coil at the bottom of the electric toothbrush driver is lower, and the length of the electric toothbrush driver is increased, so that the electric toothbrush is easier to topple when the electric toothbrush is placed vertically.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the utility model provides an electric toothbrush driver with wireless function of charging, this kind of electric toothbrush driver improves wireless charging efficiency height under the prerequisite that does not increase length, and the wireless environment of charging of adaptable multi-angle complicacy.

In order to solve the technical problem, the utility model discloses a technical scheme is: electric toothbrush driver with wireless function of charging, including straight tube form casing, the casing front end has the end plate and has seted up the shaft hole on the end plate, and casing rear end sealing connection has the rear end cap, and the casing front portion is provided with the motor, and interior rear portion is provided with circuit board and chargeable battery, the casing rear portion still is provided with a plurality of receiving coils, and a plurality of receiving coil equipartitions are on shells inner wall, and each receiving coil connects in parallel on anodal charging terminal and negative pole charging terminal, and anodal charging terminal and negative pole charging terminal are connected respectively on the circuit board and just, negative pole electric connection with the battery, and the battery still simultaneously with motor electric connection for provide the electric energy to the motor.

As a preferable scheme, the cross section of the shell is a regular triangle with three corners forming round corners, the inner wall of the shell is provided with three planes, and the power receiving coils are uniformly distributed on the planes.

As a preferred scheme, be connected with the anodal shell fragment and the negative pole shell fragment that are used for connecting the battery on the circuit board perpendicularly, anodal shell fragment and negative pole shell fragment set up relatively, and the battery joint is provided with the location trip respectively between anodal shell fragment and negative pole shell fragment on the circuit board that is located the battery both sides, and the battery passes through location trip, anodal shell fragment and negative pole shell fragment location on the circuit board.

As a preferred scheme, be provided with the sealing washer in the shaft hole, this sealing washer both ends stretch out outside the shaft hole respectively, and the sealing washer both ends tip that is located outside the shaft hole radially outwards extends respectively and forms retaining ring portion, and two retaining ring portion centre gripping are in the inside and outside of casing front end-plate, and the casing front end of motor is supported with the retaining ring portion that is located casing front end-plate inboard tightly, and the main shaft of motor passes the sealing washer and stretches out outside the casing, and the main shaft closely pastes with the sealing washer and connects.

Preferably, the rear end cover is in threaded connection with the shell, and the rear end cover and the shell are sealed through a sealing ring.

The utility model has the advantages that: the utility model discloses a plurality of current-receiving coil of circumference equipartition on electric toothbrush driver's shells inner wall to connect a plurality of current-receiving coil in parallel on the battery just, negative pole, thereby make electric toothbrush driver can receive on a plurality of directions and send the electromagnetic field, have a plurality of current-receiving coil simultaneously moreover and at power transmission magnetic field variation in-process and produce electric current, charge the battery, consequently, compare with traditional wireless toothbrush driver that charges, electric toothbrush driver under the prerequisite that does not increase length improved wireless charge efficiency, specially adapted has the place of the wireless function of charging of multi-angle.

Drawings

The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a sectional view A-A of FIG. 1;

FIG. 3 is a diagram showing the electrical connection relationship between each power receiving coil and the positive and negative charging terminals;

in FIGS. 1 to 3: 1. the device comprises a shell, 101, an end plate, 2, a shaft hole, 3, a rear end cover, 4, a motor, 401, a main shaft, 402, a shell, 5, a circuit board, 6, a battery, 7, a receiving coil, 8, a positive charging terminal, 9, a negative charging terminal, 10, a positive shrapnel, 11, a negative shrapnel, 12, a positioning clamping hook, 13, a sealing ring, 1301, a check ring part, 14 and a sealing ring.

Detailed Description

The following describes in detail a specific embodiment of the present invention with reference to the drawings.

As shown in fig. 1 and 2, the electric toothbrush driver with wireless charging function includes a straight tubular housing 1, the front end of the housing 1 has an end plate 101 and a shaft hole 2 is opened on the end plate 101, the rear end of the housing 1 is hermetically connected with a rear end cap 3, a motor 4 is arranged at the front part of the housing 1, a circuit board 5 and a rechargeable battery 6 are arranged at the rear part of the housing, a plurality of current-receiving coils 7 are further arranged at the rear part of the housing 1, the current-receiving coils 7 are uniformly distributed on the inner wall of the housing 1, the current-receiving coils 7 are connected in parallel to a positive charging terminal 8 and a negative charging terminal 9, the positive charging terminal 8 and the negative charging terminal 9 are respectively connected to the circuit board 5 and are electrically connected to the positive and negative electrodes of the battery 6, and the battery 6 is also electrically connected to the motor 4 for providing electric energy to the motor 4. As shown in fig. 1, although the connection relationship between each power receiving coil 7 and the positive and negative charging terminals 8 and 9 is not explicitly shown in the drawing, fig. 3 explicitly depicts the connection relationship between each power receiving coil 7 and the positive and negative charging terminals 8 and 9, respectively, in parallel.

In this embodiment, the cross section of the housing 1 is a regular triangle with three corners forming a round angle, the inner wall of the housing 1 has three planes, and the power receiving coils 7 are uniformly distributed on each plane. In actual production, the cross section of the housing 1 is not particularly limited, and may be polygonal, circular or elliptical. The adoption of the casing 1 with the triangular cross section can effectively enlarge the size of the inner wall of the power receiving coil 7, thereby enlarging the diameter of the power receiving coil 7 so as to improve the capacity of the power receiving coil 7 for receiving a magnetic field and generating current.

Through a plurality of receiving coil 7 of circumference equipartition on the 1 inner wall of casing at the electric toothbrush driver to connect in parallel a plurality of receiving coil 7 on battery 6 is positive, negative, thereby make the electric toothbrush driver can receive on a plurality of directions and send the electromagnetic field, have a plurality of receiving coil 7 simultaneously moreover and produce electric current at power transmission magnetic field variation in-process, charge battery 6, consequently, compare with traditional wireless toothbrush driver that charges, the electric toothbrush driver improved wireless charging efficiency under the prerequisite that does not increase length, specially adapted has the place of the wireless function of charging of multi-angle.

The circuit board 5 is vertically connected with a positive elastic sheet 10 and a negative elastic sheet 11 which are used for being connected with the battery 6, the positive elastic sheet 10 and the negative elastic sheet 11 are arranged oppositely, the battery 6 is clamped between the positive elastic sheet 10 and the negative elastic sheet 11, the circuit board 5 positioned on two sides of the battery 6 is respectively provided with a positioning clamping hook 12, and the battery 6 is positioned on the circuit board 5 through the positioning clamping hook 12, the positive elastic sheet 10 and the negative elastic sheet 11.

Be provided with sealing washer 13 in the shaft hole 2, this sealing washer 13 both ends stretch out outside shaft hole 2 respectively, the sealing washer 13 both ends tip that is located outside shaft hole 2 radially outwards extends respectively and forms retaining ring portion 1301, two retaining ring portion 1301 centre gripping are in the inside and outside of 1 front end plate 101 of casing, the casing 402 front end of motor 4 tightly supports with the retaining ring portion 1301 that is located 1 front end plate 101 inboard of casing, main shaft 401 of motor 4 passes sealing washer 13 and stretches out outside casing 1, main shaft 401 closely pastes with sealing washer 13 and connects, thereby realize the reliable sealed of shaft hole 2.

The rear end cover 3 is in threaded connection with the shell 1, and the rear end cover 3 and the shell 1 are sealed through a sealing ring 14. The rear end cover 3 is connected with the shell 1 in a threaded mode, so that the rear end cover 3 can be detached, the batteries 6 can be replaced conveniently, and the service life of the electric toothbrush driver is longer.

The utility model discloses the working process is: as shown in fig. 1 and 2, when placing the electric toothbrush driver in the environment with single-angle power transmission electromagnetic field (i.e. the alternating magnetic field generated by the power transmission coil), if the power transmission coil is in the charging environment with horizontal setting, we only need to place the electric toothbrush driver on the power transmission coil horizontally, then the power receiving coil 7 opposite to the power transmission coil will generate stronger induced current, the power receiving coil 7 with a certain angle to the power transmission coil will generate weaker induced current, charge the battery 6, because the inner side wall area of the casing 1 is larger, so the number and size of the power transmission coils can be increased properly, thereby improving the charging efficiency of the electric toothbrush driver. Will electric toothbrush driver when placing in the environment that has multi-angle power transmission magnetic field, set up like the existing level of power transmission coil, also have vertical setting, perhaps all power transmission coils are vertical setting and when becoming circumferential direction and arranging, we only need place electric toothbrush driver vertically near power transmission coil, or in the middle of a plurality of power transmission coils, at this moment, every will receive the power transmission electromagnetic field and produce induced-current with power transmission coil parallel or near parallel receiving coil 7, when a plurality of receiving coil 7 simultaneous workings, electric toothbrush driver's charge efficiency just can obtain promoting greatly.

The above embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments in use, and are not intended to limit the invention; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.

Claims (5)

1. An electric toothbrush driver with a wireless charging function comprises a straight tube-shaped shell (1), wherein the front end of the shell (1) is provided with an end plate (101) and a shaft hole (2) is formed in the end plate (101), the rear end of the shell (1) is hermetically connected with a rear end cover (3), the front part in the shell (1) is provided with a motor (4), the inner rear part is provided with a circuit board (5) and a rechargeable battery (6), the electric toothbrush driver is characterized in that the inner rear part of the shell (1) is further provided with a plurality of power receiving coils (7), the power receiving coils (7) are uniformly distributed on the inner wall of the shell (1), each power receiving coil (7) is connected in parallel on an anode charging terminal (8) and a cathode charging terminal (9), the anode charging terminal (8) and the cathode charging terminal (9) are respectively connected on the circuit board (5) and are electrically connected with the anode and the cathode of the battery (6), and the battery (6) is also electrically connected with the motor (4), for supplying electrical energy to the electrical machine (4).

2. The electric toothbrush driver with wireless charging function according to claim 1, wherein the cross section of the housing (1) is a regular triangle with three corners rounded, the inner wall of the housing (1) has three planes, and the power receiving coils (7) are uniformly distributed on each plane.

3. The electric toothbrush driver with the wireless charging function according to claim 1, wherein the circuit board (5) is vertically connected with a positive elastic sheet (10) and a negative elastic sheet (11) which are used for connecting the battery (6), the positive elastic sheet (10) and the negative elastic sheet (11) are arranged oppositely, the battery (6) is clamped between the positive elastic sheet (10) and the negative elastic sheet (11), the circuit boards (5) on two sides of the battery (6) are respectively provided with a positioning hook (12), and the battery (6) is positioned on the circuit board (5) through the positioning hook (12), the positive elastic sheet (10) and the negative elastic sheet (11).

4. The electric toothbrush driver with the wireless charging function according to claim 1, wherein a sealing ring (13) is arranged in the shaft hole (2), two ends of the sealing ring (13) respectively extend out of the shaft hole (2), two end parts of the sealing ring (13) positioned outside the shaft hole (2) respectively extend outwards in the radial direction to form a retaining ring part (1301), the two retaining ring parts (1301) are clamped on the inner side and the outer side of the front end plate (101) of the shell (1), the front end of the shell (402) of the motor (4) is tightly abutted to the retaining ring part (1301) positioned on the inner side of the front end plate (101) of the shell (1), the spindle (401) of the motor (4) extends out of the shell (1) through the sealing ring (13), and the spindle (401) is tightly attached to the sealing ring (13).

5. The electric toothbrush driver with wireless charging function according to claim 1, wherein the rear end cap (3) is in threaded connection with the housing (1), and the rear end cap (3) is sealed with the housing (1) by a sealing ring (14).

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