CN208851684U - A kind of electric toothbrush of subregion vibration - Google Patents

Abstract

The utility model provides a kind of electric toothbrush of subregion vibration, including handle and brush head, brush head include brush handle and bristle, and the head of brush handle is arranged in bristle, wherein one end of handle is provided with vibration transmission rod, is provided with vibration unit in vibration transmission rod；Vibration unit includes the first vibration component and the second vibration component, first vibration component includes first motor, the first drive shaft and the first eccentric wheel, first drive shaft is fixedly connected with the first eccentric wheel, and first motor drives the first eccentric wheel to be rotated in a first direction by the first drive shaft；Second vibration component includes the second motor, the second drive shaft and the second eccentric wheel, second drive shaft is fixedly connected axially across rear with the second eccentric wheel from first motor and the first drive shaft, second motor drives the second eccentric wheel to rotate in a second direction by the second drive shaft, and first direction and second direction are opposite.Electric toothbrush provided by the utility model has many advantages, such as that grip feeling is comfortable, cleaning effect is good.

Description

A kind of electric toothbrush of subregion vibration

Technical field

The utility model relates to small stores technical field, in particular to a kind of electric toothbrush of subregion vibration.

Background technique

Traditional manual toothbrush is a kind of tool in common cleaning oral cavity, but manual toothbrush usually will appear to tooth Sordid situation is cleaned, manual operation dynamics and the lack of standardization of movement will cause bleeding gums, and enamel is caused to be ground The problems such as damage.Occur a kind of electric toothbrush on the market now, by the vibration for the vibrating elements being arranged in handle, and will vibration Dynamic be transferred on the bristle of brush head is brushed teeth, but existing electric toothbrush often exists cannot clean oral cavity, nothing well The defects of method restraining and sterilizing bacteria, meeting damage enamel.And the vibrating elements of existing electric toothbrush is generally located on handle Inside, the seismaesthesia of handle is strong when use, influences operating handle.

Summary of the invention

That the purpose of the utility model is to provide a kind of grip feelings is comfortable, cleaning effect is good, electric toothbrush with sterilizing function.

To achieve the goals above, the utility model provides a kind of electric toothbrush of subregion vibration, including handle and brush head, Power supply unit is provided in handle, brush head includes brush handle and bristle, and the head of brush handle is arranged in bristle, wherein one end of handle It is provided with vibration transmission rod, vibration unit is provided in vibration transmission rod, vibration transmission rod is out of the insertion of the tail portion of brush handle brush handle； Vibration unit include the first vibration component and the second vibration component, the first vibration component include first motor, the first drive shaft and First eccentric wheel, the first drive shaft are fixedly connected with the first eccentric wheel, and first motor is eccentric by the first drive shaft driving first Wheel is rotated in a first direction；Second vibration component include the second motor, the second drive shaft and the second eccentric wheel, the second drive shaft from First motor and the first drive shaft are fixedly connected axially across rear with the second eccentric wheel, and the second motor passes through the second drive shaft and drives Dynamic second eccentric wheel rotates in a second direction, and first direction and second direction are opposite.

As seen from the above technical solution, vibration unit is arranged in vibration transmission rod, by vibration transmission rod by vibrational energy The bristle being transferred on brush head is measured, the seismaesthesia of handle is substantially reduced, improves the grip feeling comfort level of handle, vibration transmission rod Vibrational energy transmission efficiency is high, advantageously reduces energy consumption, improves the use time for often filling primary electricity.First eccentric wheel and second The rotation direction of eccentric wheel is different, and the direction of vibration generated by the rotation of the first eccentric wheel and the second eccentric wheel is different, can brush The vibration of different directions is generated on hair, cleaning effect comprehensive can be deep into the dental surface of teeth space, out-of-flatness, accomplish comprehensively clear It is clean.

Further embodiment is that bristle installing zone is arranged in the head of brush handle, and multiple bristle peaces are provided in bristle installing zone Hole is filled, bristle is mounted in bristle mounting hole, and bristle mounting hole includes the first mounting hole and the second mounting hole, the first mounting hole Ellipsoidal cross section, the section of the second mounting hole are in an one wide narrow water droplet arc.Bristle installing zone is oval, bristle It is respectively set on the outside of the middle part of installing zone there are two the first mounting hole, other regions setting multiple second of bristle installing zone is installed Hole.

As it can be seen that the decaying of energy is big when being transmitted in the first mounting hole of ellipse due to vibrational energy, so that the first peace The vibration frequency for filling the bristle in hole is small；When being transmitted in the second mounting hole of water droplet arc due to vibrational energy, energy declines Reduce, so that the vibration frequency of the bristle in the second mounting hole is big；When brushing teeth, the bristle in the first mounting hole is located at gum position It sets, small vibration frequency is conducive to protect gum, it prevents that gum is caused to damage, and the bristle in the second mounting hole is located at tooth Surface, big vibration frequency are conducive to clean dental surface.By the clean mode of above-mentioned subregion, that is, can guarantee electronic The cleaning effect of toothbrush, and can avoid gingival lesions.

Further embodiment is that bristle is in undaform, and the length of the bristle at the middle part and both ends of bristle installing zone is greater than it The length of his bristle.

As it can be seen that the bristle of undaform is conducive to clean the recess portion of tooth end.

Further embodiment is that the tail portion of brush handle is provided with hollow connecting cavity, and connecting cavity from-inner-to-outer includes cylinder The first connecting cavity and truncated cone-shaped the second connecting cavity, the cylindrical head of vibration transmission rod, which passes through, is inserted into the after the second connecting cavity In one connecting cavity, multiple convex blocks are evenly arranged on the peripheral wall of the first connecting cavity.

As it can be seen that the cylindrical head of vibration transmission rod and the convex block of the peripheral wall of the first connecting cavity collide, thus will vibration Energy is transferred to brush head, improves the transmission efficiency of energy.

Further scheme is that power supply unit is rechargeable battery, and electric toothbrush further includes wireless charging pedestal, wireless charging It is provided with wireless transmission coil in electric pedestal, the plug connecting with wireless transmission coil, handle are provided on wireless charging pedestal Bottom be provided with the wireless receiving coil with wireless transmission coil mutual induction, wireless receiving coil connect with rechargeable battery.

It can be seen that improving the safety of charging by way of wireless charging.

Further embodiment is that wireless charging pedestal includes the second sidewall of smooth the first side wall and arc, the first side The bottom of wall and second sidewall is provided with smooth bottom wall, and the first side wall, second sidewall and bottom wall surround the receiving of upper end opening Portion is penetratingly provided with opening portion in second sidewall, and opening portion extends to bottom wall from the upper end of second sidewall, is arranged on opening portion There is contraction flow region, the lower end of handle can be inserted into receiving portion；Closed first accommodating chamber, setting in the first side wall are provided in bottom wall There is closed second accommodating chamber, the bottom of the first side wall is arranged in plug, and wireless transmission coil is arranged in the first accommodating chamber.

As it can be seen that plug is arranged on smooth the first side wall, charge convenient for wireless charging pedestal to be inserted on plate； Opening portion is set convenient for observing the variation of charged state in charging process, and is conducive to water and is flowed out from receiving portion；It is set in opening portion Setting contraction flow region can prevent handle from falling from opening portion.

Further embodiment is that first coil is provided in rechargeable battery, and the last the first magnetic, the last the first magnetic are provided in handle Positioned at the lower section of rechargeable battery, the second coil is wound on the last the first magnetic；It is located directly opposite on wireless charging pedestal with the last the first magnetic There is the last the second magnetic, be wound with tertiary coil on the last the second magnetic, the last the second magnetic potential is on the side wall of the second accommodating chamber, tertiary coil and nothing Line transmit coil is connected；The magnetic induction intensity of the last the first magnetic and the last the second magnetic is all larger than 1T.

As it can be seen that by the magnetic conductive transmitting between the last the first magnetic and the last the second magnetic, it is only small when rechargeable battery is full of fastly Portion of electrical current is slowly charged into rechargeable battery, can protect rechargeable battery in this way, avoids self discharge caused by overcharging, effectively mentions The service life of high charge battery and the decaying for reducing charged battery capacity.

Further embodiment is that the magnetic induction intensity of the last the first magnetic is 1.28T to 1.32T, and the magnetic induction of the last the second magnetic is strong Degree is 1.13T to 1.17T.

Further embodiment is to be provided with heat dissipating ring outside the second motor, heat dissipating ring is made of alumina ceramic material.

As it can be seen that can quickly radiate since alumina ceramic material radiating efficiency is high, the excessively high damage second of temperature is prevented Motor.

Detailed description of the invention

Fig. 1 is the structure chart of the electric toothbrush embodiment of the utility model.

Fig. 2 is the main view of the brush handle of the electric toothbrush embodiment of the utility model.

Fig. 3 is the cross-sectional view in the direction A-A in Fig. 2.

Fig. 4 is the bottom view of the brush handle of the electric toothbrush embodiment of the utility model.

Fig. 5 is the head construction enlarged drawing of the brush handle of the electric toothbrush embodiment of the utility model.

Fig. 6 is the left view of the brush head of the electric toothbrush embodiment of the utility model.

Fig. 7 is the structure chart of the handle of the electric toothbrush embodiment of the utility model.

Fig. 8 is the cross-sectional view of the handle of the electric toothbrush embodiment of the utility model.

Fig. 9 is the structural schematic diagram of the vibration unit of the electric toothbrush embodiment of the utility model.

Figure 10 is structure chart of the wireless charging pedestal of the electric toothbrush embodiment of the utility model under the first visual angle.

Figure 11 is structure chart of the wireless charging pedestal of the electric toothbrush embodiment of the utility model under the second visual angle.

Figure 12 is the cross-sectional view of the wireless charging pedestal of the electric toothbrush embodiment of the utility model.

Figure 13 is the charging principle figure of the electric toothbrush embodiment of the utility model.

The following is a further explanation of the present invention with reference to the accompanying drawings and embodiments.

Specific embodiment

It is the structure chart of the electric toothbrush embodiment of the utility model referring to Fig. 1, Fig. 1.In the present embodiment, electric tooth Brush includes handle 1, brush head 2 and wireless charging pedestal 3, and the upper end of handle 1 is arranged in brush head 2, and handle 1 is inserted into wireless charging pedestal It charges on 3.

Handle 1 has cylindrical shell 10, and the surface of shell 10 is provided with switch button 11, transparent cover plate 12 and mould Formula switching push button 13, the settable display module in transparent cover plate 12, the display module for example can be LED light, display module For showing the information such as electricity, vibration mode.

Brush head 2 includes brush handle 20 and bristle 21, and the head 200 of brush handle 20 is arranged in bristle 21.

Referring to fig. 2, Fig. 3 and Fig. 4, Fig. 2 are the main views of the brush handle of the electric toothbrush embodiment of the utility model, and Fig. 3 is The cross-sectional view in the direction A-A in Fig. 2, Fig. 4 are the bottom views of the brush handle of the electric toothbrush embodiment of the utility model.Brush handle 20 includes Head 200 and tail portion 201, head 200 and tail portion 201 are made of plastic material integrated molding.Head 200 is provided with bristle installation Area, is provided with multiple bristle mounting holes 210 in bristle installing zone, and bristle 21 is mounted in bristle mounting hole 210.Tail portion 201 In up-small and down-big truncated cone-shaped, it is provided with hollow connecting cavity in tail portion 201, connecting cavity from-inner-to-outer includes cylindrical the Second connecting cavity 222 of one connecting cavity 221 and truncated cone-shaped, the lower end of the second connecting cavity 222 are open end.In the first connecting cavity Multiple convex blocks 223 are evenly arranged on 221 peripheral wall, convex block 223 is axially extending along the first connecting cavity 221, in this embodiment party In formula, there are four convex blocks 223 for setting, wherein the plane where opposite two convex blocks 223 and the plane where bristle installing zone In parallel, the plane in addition where opposite two convex blocks 223 is vertical with the plane where bristle installing zone.In the second connecting cavity 222 open end is provided with the mounting groove 224,225 for being easily installed brush head, and one end of mounting groove 224 is provided with through tail portion The fixation hole 226 of 201 peripheral wall.

It is the head construction enlarged drawing of the brush handle of the electric toothbrush embodiment of the utility model referring to Fig. 5, Fig. 5.In this reality It applies in mode, 200 general ellipsoidal of head of brush handle 20, the bristle installing zone that head 200 is arranged in is oval, and setting exists The bristle mounting hole 210 of bristle installing zone includes the first mounting hole 211 and the second mounting hole 212, the section of the first mounting hole 211 Oval, the section of the second mounting hole 212 is in an one wide narrow water droplet arc.On the outside of the middle part of bristle installing zone respectively There are two the first mounting hole 211, other regions of bristle installing zone, and multiple second mounting holes 212 are arranged for setting.In the first installation In hole 211 and the second mounting hole 212 after installation bristle, the shape of the bristle in the first mounting hole 211 is oval, the second installation The shape of bristle in hole 212 is in water droplet arc, and the benefit being arranged in this way is: first mounting hole of the vibrational energy in ellipse In 211 when transmitting, the decaying of energy is big, so that the vibration frequency of the bristle in the first mounting hole 211 is small；Vibrational energy is in water droplet In second mounting hole 212 of arc when transmitting, the decaying of energy is small, so that the vibration frequency of the bristle in the second mounting hole 212 Greatly, when brushing teeth, the bristle in the first mounting hole 211 is located at gingival position, and small vibration frequency is conducive to protect gum, prevents pair Gum causes to damage, and the bristle in the second mounting hole 212 is located at dental surface, and big vibration frequency is conducive to dental surface It is cleaned.

It is the left view of the brush head of the electric toothbrush embodiment of the utility model referring to Fig. 6, Fig. 6.Brush head 2 includes brush handle 20 With bristle 21, bristle 21 is in undaform, i.e. length of the length of the bristle at middle part and both ends greater than the bristle of other positions.From a left side View sees that bristle 21 includes lug boss 213,214,215 and recess portion 216,217, and when brushing teeth, lug boss 214 is recessed with its two sides Portion 216,217 is bonded well with the part of tooth end face fallen in, so that the tooth to the part is effectively cleaned.

Referring to figs. 7 and 8, Fig. 7 is the structure chart of the handle of the electric toothbrush embodiment of the utility model, and Fig. 8 is this reality With the cross-sectional view of the handle of novel electric toothbrush embodiment.One end that handle 1 is connect with brush head 2 is provided with vibration transmission rod 14, vibration transmission rod 14 includes the tail portion 141 on cylindrical head 140 and truncated cone-shaped, and head 140 and tail portion 141 are by plastics material Material is integrally formed and is made, and the length on head 140 is less than the length of tail portion 141.Mounting blocks are provided on the periphery wall of tail portion 141 142, when by the installation to handle 1 of brush head 2, the head 140 of vibration transmission rod 14 is inserted after the second connecting cavity 222 of brush handle 20 Enter the first connecting cavity 221(referring to Fig. 3) in, when vibration transmission rod 14 is vibrated, the convex block 223(in head 140 and brush handle 20 joins See Fig. 3, Fig. 4) it collides, vibrational energy is transferred on brush handle 20, the cooperation of head 140 and convex block 223 improves vibration The transmission efficiency of energy.By mounting blocks 142 and mounting groove 224,225(referring to Fig. 3 between vibration transmission rod 14 and brush handle 20) It is fixedly connected, this connection type is simple and reliable, it can be achieved that being rapidly assembled and disassembled brush head.

Vibration unit 15 is provided in vibration transmission rod 14, vibration unit 15 provides vibrational energy.Due to vibration unit 15 It is arranged in vibration transmission rod 14, the vibrational energy of vibration unit 15 is nearly all transferred in vibration transmission rod 14, hand when use The seismaesthesia very little of handle 1, the grip feeling of handle 1 is comfortable, transmits these vibrations to brush head 2 by vibration transmission rod 14, and capacity usage ratio is high, The charging first use time increases.

Power supply unit is additionally provided in handle 1, in the present embodiment, power supply unit is rechargeable battery 16, such as lithium ion Battery is provided with the last the first magnetic 17 in the lower section of rechargeable battery 16 on 1 internal perisporium of handle, and the bottom of handle 1, which is provided with, wirelessly to be connect Take-up circle 18, wireless receiving coil 18 are connect with the positive and negative anodes of rechargeable battery 16.Rechargeable battery 16 passes through control circuit board and vibration Moving cell 15 is electrically connected, to control the operation of vibration unit 15.

It is the structural schematic diagram of the vibration unit of the electric toothbrush embodiment of the utility model referring to Fig. 9, Fig. 9.Vibration is single Member 15 includes the first vibration component and the second vibration component, and the first vibration component is located at the top of the second vibration component.First vibration Dynamic component includes first motor 150, the first drive shaft 151 and the first eccentric wheel 152, one end and first of the first drive shaft 151 Eccentric wheel 152 is fixedly connected, and the other end of the first drive shaft 151 is connect with first motor 150, and first motor 150 passes through first Drive shaft 151 drives the first eccentric wheel 152 to be rotated in a first direction, and the first eccentric wheel 152 generates the first vibration source when rotating.The Two vibration components include the second motor 153, the second drive shaft 154 and the second eccentric wheel 155, one end of the second drive shaft 154 from First motor 150 and the first drive shaft 151 are fixedly connected axially across rear with the second eccentric wheel 155, the second drive shaft 154 The other end is connect with the second motor 153, and the second motor 153 drives the second eccentric wheel 155 along second party by the second drive shaft 154 To rotation, the second eccentric wheel 155 generates the second vibration source when rotating.First direction and second direction are on the contrary, such as first direction For clockwise, then second direction be exactly counter clockwise direction；If first direction is counterclockwise second direction It is exactly clockwise.As it can be seen that the direction of vibration of the first vibration source is opposite with the direction of vibration of the second vibration source.

It is provided with heat dissipating ring 156 outside second motor 153, heat dissipating ring 156 is made of alumina ceramic material.In this embodiment party In formula, heat dissipating ring 156 is fabricated using 99 porcelain that alumina content reaches 99%, has very ideal heat dissipation effect, due to The calorific value of second motor 153 was higher, and metal heat dissipation material is unable to reach ideal heat dissipation effect, at continuous operation 20 minutes In the case of, the radiating efficiency of the heat dissipating ring 156 of the utility model is 6 times of the radiating efficiency of common metal heat dissipating ring.Heat dissipating ring 156 intracavity diameter is gradually increased from top to bottom, and the second motor 153 is located at the interior intracavitary of heat dissipating ring 156.

The electric toothbrush of referring also to Fig. 1 to Fig. 9, the utility model include at least two kinds of operating modes.

The first mode: turning on the switch button 11, presses mode switch button 13, and rechargeable battery 16 passes through control circuit board First control signal only is sent to first motor 150, first motor 150 drives the rotation of the first eccentric wheel 152, the first eccentric wheel 152 rotations generate mechanical oscillation, which is transferred on brush head 2 by vibration transmission rod 14, and the bristle 21 on brush head 2 is along one A direction vibrates, and can clean to tooth in 21 vibration processes of bristle.Continue to press mode switch button 13, changes the first control The power of signal processed, to change the vibration strong or weak of bristle 21, that is to say, that the first mode can be there are many gear.

Second of mode: pressing mode switch button 13, rechargeable battery 16 is by control circuit board simultaneously to first motor 150 and second motor 153 send second control signal, first motor 150 drive the first eccentric wheel 152 rotation, the second motor 153 The second eccentric wheel 155 is driven to rotate, the rotation direction of the first eccentric wheel 152 and the second eccentric wheel 155 is on the contrary, the vibration side generated To after on the contrary, the vibration of two opposite directions is transferred to bristle 21, two kinds of different vibrations are generated at bristle, thus to tooth Different zones can be cleaned well, and cleaning effect comprehensive can be deep into teeth space, out-of-flatness in the second mode Dental surface is accomplished to clean comprehensively.

Two different vibration components obtain two different subregion vibration modes, to obtain different cleaning effects.

Referring to Figure 10 to Figure 12, Figure 10 and Figure 11 exist for the wireless charging pedestal of the electric toothbrush embodiment of the utility model Structure chart under different perspectives, Figure 12 are the cross-sectional view of the wireless charging pedestal of the electric toothbrush embodiment of the utility model.Nothing Line charging base 3 includes the second sidewall 32 of smooth the first side wall 31 and arc, the bottom of the first side wall 31 and second sidewall 32 Portion is provided with smooth bottom wall 33, is provided with plug 310 on the first side wall 31.The first side wall 31, second sidewall 32 and bottom wall 33 The receiving portion 34 of upper end opening is surrounded, is penetratingly provided with opening portion 320 in second sidewall 32, opening portion 320 is from second sidewall 32 upper end extends to bottom wall 33, and contraction flow region 321 is provided on opening portion 320, and contraction flow region 321 reduces the two of opening portion 320 The lower end of the distance between end side wall, handle 1 can be inserted into receiving portion 34 (referring to Fig. 1).The benefit that opening portion 320 is arranged is that have It is flowed out conducive to water from the bottom of opening portion 320, it, can opening 320 in addition when LED display lamp is arranged in the lower end of handle 1 The state change for observing LED display lamp, contraction flow region 321, which is arranged, on opening portion 320 can prevent handle 1 from falling from opening portion 320 It falls.

It is provided with closed first accommodating chamber 330 in bottom wall 33, is provided with wireless transmission coil in the first accommodating chamber 330 331, plug 310 is passed through from 31 surface of the first side wall and is connect afterwards with wireless transmission coil 331.Closing is provided in the first side wall 31 The second accommodating chamber 311, be provided with the last the second magnetic 312 on the side wall of the second accommodating chamber 311.

The electric toothbrush of the utility model is charged by trickle charge principle, and charging principle figure is referring to Figure 13, by nothing The plug 310 of line charging base 3 is electrically connected with the city of 220V, and conversion module flows through wireless hair after converting alternating current to direct current Sending coil 331, the wireless receiving coil 18 in handle 1 generate induced current, and wireless receiving coil 18 and rechargeable battery 16 are just Cathode connection, charges to rechargeable battery 16.Rechargeable battery 16 is provided with first coil 160, First Line in the position close to bottom Length between circle 160 and 16 bottom wall of rechargeable battery is the 1/5 of the whole length of rechargeable battery 16.Rechargeable battery 16 is according in figure The direction of arrow A is charged section by section, and when being charged to 80%, first coil 160 has electric current to pass through, in rechargeable battery 16 in handle 1 Lower section is additionally provided with the last the first magnetic 17, and the second coil 170 is provided on the last the first magnetic 17, when generating electric current in first coil 160, Second coil 170 generates induced current accordingly, is equivalent to and the electric current in first coil 160 is drained on the second coil 170. It has been located directly opposite the last the second magnetic 312 with the last the first magnetic 17 on wireless charging pedestal 3, third line is provided on the last the second magnetic 312 Circle 313 carries out magnetic conductive transmitting, phase between the last the first magnetic 17 and the last the second magnetic 312 between the last the first magnetic 17 and the last the second magnetic 312 When the resistance very big in a resistance value, electric current is decayed in transmittance process, finally after tertiary coil 313 circuit to nothing Line receiving coil 18.It can be seen that only fraction electric current is slowly charged into rechargeable battery 16 when charging to 80%, this Sample can protect rechargeable battery 16, avoid self discharge caused by overcharging, and effectively improve the service life and drop of rechargeable battery 16 The decaying of low 16 capacity of rechargeable battery.In the present embodiment, the last the first magnetic 17 and the last the second magnetic 312 are magnetic very strong magnetic Iron, their magnetic induction intensity are all larger than 1T(tesla), neodymium iron boron strong magnet can be used for example.Preferably, the last the first magnetic Magnetic induction intensity be 1.28T to 1.32T, the magnetic induction intensity of the last the second magnetic is 1.13T to 1.17T.

Certainly, above-described embodiment is only the preferable embodiment of the utility model, and when practical application can also have more Variation, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should be included in In the protection scope of the utility model claims.

Claims (10)

1. a kind of electric toothbrush of subregion vibration, including handle and brush head, power supply unit, the brush head are provided in the handle Including brush handle and bristle, the head of the brush handle is arranged in the bristle, it is characterised in that:

One end of the handle is provided with vibration transmission rod, and vibration unit is provided in the vibration transmission rod, and the vibration passes Bar is passed to be inserted into the brush handle from the tail portion of the brush handle；

The vibration unit include the first vibration component and the second vibration component, first vibration component include first motor, First drive shaft and the first eccentric wheel, first drive shaft are fixedly connected with first eccentric wheel, and the first motor is logical Crossing first drive shaft drives first eccentric wheel to be rotated in a first direction；Second vibration component includes the second electricity Machine, the second drive shaft and the second eccentric wheel, axial direction of second drive shaft from the first motor and first drive shaft It is fixedly connected across rear with second eccentric wheel, second motor drives second bias by second drive shaft Wheel rotates in a second direction, and the first direction and the second direction are opposite.

2. electric toothbrush according to claim 1, it is characterised in that:

Bristle installing zone is arranged in the head of the brush handle, is provided with multiple bristle mounting holes, the brush in the bristle installing zone Hair is mounted in the bristle mounting hole, and the bristle mounting hole includes the first mounting hole and the second mounting hole, first peace The ellipsoidal cross section in hole is filled, the section of second mounting hole is in an one wide narrow water droplet arc.

3. electric toothbrush according to claim 2, it is characterised in that:

The bristle installing zone is oval, is respectively set that there are two first installations on the outside of the middle part of the bristle installing zone Multiple second mounting holes are arranged in other regions in hole, the bristle installing zone.

4. electric toothbrush according to claim 3, it is characterised in that:

The bristle is in undaform, and the length of the bristle at the middle part and both ends of the bristle installing zone is greater than the length of other bristles Degree.

5. electric toothbrush according to claim 4, it is characterised in that:

The tail portion of the brush handle is provided with hollow connecting cavity, and the connecting cavity from-inner-to-outer includes the first cylindrical connecting cavity With the second connecting cavity of truncated cone-shaped, the cylindrical head of the vibration transmission rod, which passes through, is inserted into described the after second connecting cavity In one connecting cavity, multiple convex blocks are evenly arranged on the peripheral wall of first connecting cavity.

6. electric toothbrush according to any one of claims 1 to 5, it is characterised in that:

The power supply unit is rechargeable battery, and the electric toothbrush further includes wireless charging pedestal, in the wireless charging pedestal It is provided with wireless transmission coil, the plug connecting with the wireless transmission coil is provided on the wireless charging pedestal, it is described The bottom of handle is provided with the wireless receiving coil with the wireless transmission coil mutual induction, the wireless receiving coil and institute State rechargeable battery connection.

7. electric toothbrush according to claim 6, it is characterised in that:

The wireless charging pedestal includes the second sidewall of smooth the first side wall and arc, the first side wall and described second The bottom of side wall is provided with smooth bottom wall, and the first side wall, the second sidewall and the bottom wall surround upper end opening Receiving portion is penetratingly provided with opening portion in the second sidewall, and the opening portion is extended to from the upper end of the second sidewall The bottom wall, contraction flow region is provided on the opening portion, and the lower end of the handle can be inserted into described accommodation section；

It is provided with closed first accommodating chamber in the bottom wall, closed second accommodating chamber, institute are provided in the first side wall The bottom that the first side wall is arranged in plug is stated, the wireless transmission coil setting is in the first receiving cavity.

8. electric toothbrush according to claim 7, it is characterised in that:

It is provided with first coil in the rechargeable battery, the last the first magnetic is provided in the handle, the last the first magnetic potential is in institute The lower section of rechargeable battery is stated, is wound with the second coil on the last the first magnetic；

The last the second magnetic, the last the second magnetic and the last the first magnetic face, the last the second are provided in second accommodating chamber Tertiary coil is wound on magnetic, the tertiary coil is connected with the wireless transmission coil；

The magnetic induction intensity of the last the first magnetic and the last the second magnetic is all larger than 1T.

9. electric toothbrush according to claim 8, it is characterised in that:

The magnetic induction intensity of the last the first magnetic is 1.28T to 1.32T, the magnetic induction intensity of the last the second magnetic be 1.13T extremely 1.17T。

10. electric toothbrush according to claim 1, it is characterised in that:

It is provided with heat dissipating ring outside second motor, the heat dissipating ring is made of alumina ceramic material.