CN218589172U - Motor, handle and electric toothbrush - Google Patents

Abstract

The application discloses motor, handle and electric toothbrush relates to oral cavity cleaning technical field. The motor comprises a motor main body and an output shaft; the output shaft comprises a first connecting part and a second connecting part which are connected, and the first connecting part is connected with the motor main body; a wire-passing hole is formed in the second connecting portion, and one end, close to the first connecting portion, of the second connecting portion extends to one end, far away from the first connecting portion, of the second connecting portion. When being applied to electric toothbrush with the motor that this application provided, need not to do extra waterproof construction for connecting in the connecting wire of information acquisition spare again to can reduce electric toothbrush's cost, improve electric toothbrush's production efficiency.

Description

Motor, handle and electric toothbrush

Technical Field

The application relates to the technical field of oral cavity cleaning, in particular to a motor, a handle and an electric toothbrush.

Background

At present, for enriching user experience, some manufacturers can integrate structural components such as a camera on a brush rod of the electric toothbrush so as to realize the versatility of the electric toothbrush.

However, when assembling the existing electric toothbrush with a camera, an additional waterproof sealing structure needs to be made for the lead wire connected to the camera, increasing the cost of the electric toothbrush.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a motor, handle and electric toothbrush, aim at solving and need do the problem of extra waterproof construction to the connecting wire among the current electric toothbrush.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

in a first aspect, an embodiment of the present application provides an electric motor, which includes a motor main body and an output shaft;

the output shaft comprises a first connecting part and a second connecting part which are connected, and the first connecting part is connected with the motor main body;

a wire-passing hole is formed in the second connecting portion, and one end, close to the first connecting portion, of the second connecting portion extends to one end, far away from the first connecting portion, of the second connecting portion.

In one embodiment of the first aspect, the wire hole includes a first opening structure, and the first opening structure is opened on a peripheral side of the second connecting portion near one end of the first connecting portion;

the inner wall of the wiring hole close to one end of the first opening structure comprises an arc transition section, and the arc transition section is opposite to the first opening structure.

In one embodiment of the first aspect, the wire hole includes a first opening structure, and the first opening structure is opened on a peripheral side of the second connecting portion near one end of the first connecting portion;

the motor still includes the flexible sleeve, the flexible sleeve is including all being annular first protection part and second protection part, the second protection part connect in the circumference of first protection part one end, first protection part is inserted and is located first open structure, the second protection part laminate in the second connecting portion are kept away from a side surface in line hole.

In one embodiment of the first aspect, the wire hole further includes a second opening structure, and the second opening structure is opened at an end of the second connection portion away from one end of the first connection portion;

the motor further comprises a flexible clamping piece, the clamping piece is inserted into one end, close to the second opening structure, of the wiring hole, a limiting hole is formed in the clamping piece, and the limiting hole is coaxial and communicated with the wiring hole.

In one embodiment of the first aspect, the clamping member is further provided with an assembling groove;

the assembly groove by the week side surface of joint spare, to the inside extension of joint spare, until with spacing hole intercommunication.

In one embodiment of the first aspect, at least one guide groove is further formed on the periphery of one end of the second connecting portion, which is away from the first connecting portion, the at least one guide groove is communicated with the wire routing hole, and one end of the guide groove, which is away from the first connecting portion, is open;

the periphery of the clamping piece is convexly provided with at least one guide block, and the at least one guide block is inserted into the at least one guide groove in a one-to-one correspondence manner.

In a second aspect, an embodiment of the present application further provides a handle, including a handle main body, a switching rod assembly, an information collecting member, and a connecting wire;

wherein the handle body comprises the motor as provided in the embodiments above;

the adapter rod assembly is connected to the second connecting part, and the information acquisition part is mounted on the adapter rod assembly;

the connecting wires are arranged in the adapter rod assembly and the wiring holes.

In one embodiment of the second aspect, a connecting hole coaxial with the output shaft is formed in the adapter rod assembly, and the second connecting portion is inserted into the connecting hole;

the periphery of the second connecting portion is further provided with at least one first positioning portion, the inner wall of the connecting hole is provided with at least one second positioning portion, and the at least one second positioning portion is in one-to-one corresponding clamping connection with the at least one first positioning portion.

In a third aspect, embodiments of the present application further provide an electric toothbrush, including the handle provided in each of the above embodiments.

In one embodiment of the third aspect, the information acquisition part is mounted at one end of the adapter rod component far away from the second connecting part;

the electric toothbrush further comprises a brush head, and the brush head is sleeved on one end of the adapter rod assembly, which is provided with the information acquisition part.

The beneficial effect of this application is: the application provides a motor, handle and electric toothbrush, electric toothbrush and handle all include this motor. Wherein, the motor can be including motor main part and the output shaft that links to each other, can open in the second connecting portion of keeping away from motor main part one end in the output shaft and be equipped with the line hole. Also, the wire hole may extend from an end of the second connection portion near the first connection portion (i.e., the portion of the output shaft for connecting to the motor main body) to an end of the second connection portion away from the first connection portion.

It can be understood that when the motor is applied to the electric toothbrush, the connecting wire connected to the information collecting member may be disposed in the wiring hole of the output shaft, i.e., the connecting wire may be led out through the wiring hole. Therefore, an additional waterproof structure for the connecting line is not needed. Therefore, the whole structure of the electric toothbrush can be simplified, and the cost can be reduced. Meanwhile, the assembling steps of the electric toothbrush can be reduced, and the assembling efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 illustrates a perspective view of an electric toothbrush in some embodiments;

FIG. 2 shows a schematic diagram of a partially exploded structure of the electric toothbrush in some embodiments;

FIG. 3 illustrates a schematic view of a partial cross-sectional structure of an electric toothbrush in some embodiments;

FIG. 4 is a partial enlarged structural view of the portion A in FIG. 3;

FIG. 5 shows a perspective view of an output shaft in some embodiments;

FIG. 6 is a schematic diagram showing a partial cross-sectional structure of an output shaft in some embodiments;

FIG. 7 is a schematic diagram showing a partial cross-sectional view of a connecting wire disposed behind an output shaft in some embodiments;

FIG. 8 illustrates a perspective view of a flexible sleeve in some embodiments;

figure 9 shows a perspective view of the clip in some embodiments;

fig. 10 shows a schematic cross-sectional structure of an adapter rod in some embodiments.

Description of the main element symbols:

100-a handle; 10-a handle body; 11-a main housing; 111-a mounting cavity; 12-a motor; 121-a motor body; 122 — an output shaft; 1221-a first connection; 1222-a second connecting portion; 1223-a wiring hole; 12231 — a first open structure; 12232-a second open structure; 1224-a guide slot; 1225-first positioning portion; 1226-arc transition; 123-a flexible sleeve; 1231-a first guard; 1232-a second guard; 124-clamping piece; 1241-limit hole; 1242-fitting slots; 1243-a guide block; 13-a main control board; 20-a stem assembly; 21-a transfer lever; 211-connecting hole; 2111-first order connection hole; 2112-second order connection hole; 2113-abutment surface; 2114-an extension; 212-a second positioning section; 22-a cover plate; 30-an information acquisition element; 40-connecting lines; 50-a scaffold; 61-bell jar; 62-a decorative piece; 200-brush head.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Embodiments provide an electric toothbrush that provides a cleaning function to a user's mouth.

As shown in fig. 1, the electric toothbrush may include a handle 100 and a head 200. The brush head 200 is detachably connected to one end of the handle 100. When the electric toothbrush is used, the handle 100 may vibrate the brush head 200 to provide a cleaning function.

Referring also to fig. 2, the handle 100 may include a handle body 10, an adaptor rod assembly 20, an information collecting member 30, and a connection cord 40.

Referring also to fig. 3, the handle body 10 may include a main housing 11, a motor 12, and a main control board 13. The main housing 11 can be used as a mounting carrier in the handle body 10, and other structural components in the handle body 10 can be mounted attached to the main housing 11. In the embodiment, the main housing 11 has a hollow structure and can form a mounting cavity 111. Portions of the motor 12 and the main control board 13 may be installed in the installation cavity 111.

As shown in fig. 2, 3 and 5, the motor 12 may include a motor body 121 and an output shaft 122. In an embodiment, the output shaft 122 may include a first connection portion 1221 and a second connection portion 1222 that are integral. The first connecting portion 1221 can be inserted into the motor body 121, and the first connecting portion 1221 is connected to the motor body 121. The second connection portion 1222 may protrude with respect to one end of the motor main body 121. When the motor 12 is in operation, the first connecting portion 1221 may be driven by the motor main body 121 to vibrate, and the vibration may be transmitted through the second connecting portion 1222. It is understood that the motor main body 121 may be electrically connected to the main control board 13, and the operation of the motor main body 121 may be controlled by the main control board 13.

In an embodiment, the second connecting portion 1222 may be disposed at one end of the main housing 11, and one end of the second connecting portion 1222 remote from the first connecting portion 1221 may protrude with respect to the main housing 11. That is, one end of the second connecting portion 1222 remote from the first connecting portion 1221 extends to the outside of the main housing 11.

In some embodiments, the handle body 10 may further include a bell jar 61 and a decorative piece 62. The bell housing 61 can be sleeved on the second connecting portion 1222 and compressed to the assembling position of the second connecting portion 1222 and the main housing 11. On the one hand, the sealing and waterproof function of the assembled position of the second connecting portion 1222 and the main housing 11 can be achieved. On the other hand, the vibration transmission of the second connecting portion 1222 to the main case 11 direction can be reduced, and a vibration damping effect can be achieved.

The decoration member 62 can be disposed at an end of the main housing 11 close to the second connecting portion 1222, and the decoration member 62 can be disposed around the bell housing 61 to provide decoration.

As shown in fig. 3, 5 and 6, a wire hole 1223 may be further formed in the second connecting portion 1222. The wire hole 1223 may extend in the axial direction of the output shaft 122. In an embodiment, the wire hole 1223 may extend from an end of the second connecting portion 1222 close to the first connecting portion 1221 to an end of the second connecting portion 1222 far from the first connecting portion 1221. The axial direction of the output shaft 122 may refer to an extending direction of the axis L.

It is understood that the wire hole 1223 may have a through hole structure, and both ends of the wire hole 1223 have an open structure. Accordingly, the wire hole 1223 can include a first opening structure 12231 and a second opening structure 12232, and the first opening structure 12231 and the second opening structure 12232 are disposed at two ends of the wire hole 1223.

In an embodiment, the first opening structure 12231 may be opened on a peripheral side of the second connecting portion 1222 near one end of the first connecting portion 1221, that is, an axial direction of the first opening structure 12231 may be perpendicular to an axial direction of the output shaft 122. In addition, the wire hole 1223 may communicate with the mounting cavity 111 of the main housing 11 through the first opening structure 12231.

In some embodiments, the second opening structure 12232 may be opened at an end of the second connecting portion 1222 far from an end of the first connecting portion 1221. That is, the axial direction of the second opening structure 12232 is coaxial with the axial direction of the output shaft 122. The wire hole 1223 may communicate with an external environment, which may refer to an external environment with respect to the main housing 11, through the second opening structure 12232.

In other embodiments, the second opening structure 12232 may also be opened on a peripheral side of an end of the second connecting portion 1222 far from the first connecting portion 1221, that is, an axial direction of the second opening structure 12232 is perpendicular to an axial direction of the output shaft 122.

As shown in fig. 3, 6 and 7, one end of the connection line 40 may be connected to the main control board 13 by welding, and may be mechanically and electrically connected at the same time. The other end of the connecting wire 40 may enter the wire routing hole 1223 through the first opening structure 12231 and may exit the wire routing hole 1223 through the second opening structure 12232 to extend to the external environment relative to the main housing 11. In some embodiments, the connecting wires 40 can be flexible cables.

In other embodiments, an end of the connection cord 40 may enter the wire hole 1223 through the second opening structure 12232, and may extend out of the wire hole 1223 through the first opening structure 12231 to extend to the mounting cavity 111, so that the end of the connection cord 40 is connected to the main control panel 13.

As shown in fig. 6 and 7, it can be appreciated that when the connecting wire 40 enters the wire running hole 1223 through the first opening structure 12231, a 90 ° turn is required. In an embodiment, the inner wall of the wire hole 1223 near one end of the first opening structure 12231 may include a circular arc transition 1226. The arc transition 1226 can be opposite the first opening arrangement 12231, and the arc transition 1226 can be concave away from the first opening arrangement 12231. In some embodiments, the arc transition 1226 may be a quarter-arc configuration.

Of course, in other embodiments, the arc transition 1226 does not preclude the use of one-eighth arc structures or one-sixth arc structures.

Thus, when one end of the connecting wire 40 extends into the wire routing hole 1223 through the first opening structure 12231, the connecting wire 40 can be guided by the arc transition section 1226, and the connecting wire 40 is driven to turn, so that the connecting wire 40 can smoothly pass through the wire routing hole 1223.

As shown in fig. 2, the output shaft 122 of the motor 12 may be made of a material having a relatively high hardness, such as metal. When the motor body 121 drives the output shaft 122 to vibrate, the output shaft 122 and the connection line 40 can move relatively.

With reference to fig. 6 to 8, the motor 12 further includes a flexible sleeve 123. The flexible sleeve 123 may be mounted at a first opening structure 12231 of the output shaft 122, and may isolate the connection line 40 from the output shaft 122 at the first opening structure 12231. Therefore, when the output shaft 122 and the connection line 40 move relatively, the abrasion of the connection line 40 at the first opening structure 12231 can be reduced, the service life of the connection line 40 can be prolonged, and the service life of the electric toothbrush can be prolonged.

As shown in fig. 8, in some embodiments, the flexible sleeve 123 may include integral first and second guards 1231, 1232. The first and second guard portions 1231 and 1232 may each have a ring-shaped structure. The second shielding portion 1232 may be circumferentially disposed at one end of the first shielding portion 1231, and the second shielding portion 1232 may extend along a radial direction of the first shielding portion 1231.

Referring to fig. 6 and 7 together, the first protection part 1231 may be inserted into the first opening structure 12231, and the first protection part 1231 may be attached to an inner wall of the first opening structure 12231. The second protection portion 1232 may be attached to an outer wall of the second connection portion 1222 (i.e., a side surface of the second connection portion 1222 away from the wire hole 1223). In addition, the second shielding portion 1232 surrounds the first opening structure 12231 in the circumferential direction. When the connection line 40 passes through the first opening structure 12231, the connection line 40 can directly pass through the flexible sheath 123, so that the connection line 40 can be prevented from contacting the first opening structure 12231 of the output shaft 122, and abrasion to the connection line 40 is reduced.

In some embodiments, the flexible sleeve 123 may be a silicone sleeve, a rubber sleeve, or a sponge sleeve.

As shown in fig. 2, 6, 7 and 9, correspondingly, the motor 12 further includes a flexible snap member 124, and the snap member 124 can be mounted to the second opening structure 12232. The connecting wire 40 can pass through the snap member 124 when passing through the second opening structure 12232.

In one embodiment, the clamping member 124 can be used to position the connection line 40 relative to the second opening structure 12232 and can also separate the connection line 40 from the output shaft 122 at the second opening structure 12232. When the output shaft 122 vibrates, the relative movement between the connection line 40 and the second opening structure 12232 can be reduced, and further, the abrasion of the output shaft 122 to the connection line 40 can be reduced, and the service life of the connection line 40, and accordingly, the service life of the electric toothbrush can be prolonged.

In some embodiments, the clip 124 may have a cylindrical structure. At least a portion of the clip 124 can be inserted into the wire hole 1223 through the second opening structure 12232. In some embodiments, the clip 124 may be fully inserted and received in the wire hole 1223.

As shown in fig. 3, 6, 7 and 9, the clip 124 may have a limiting hole 1241 formed therein, and the limiting hole 1241 may be parallel to the axial direction of the output shaft 122. One end of the limiting hole 1241 may communicate with the wire hole 1223, and the other end of the limiting hole 1241 may communicate with an external environment, which may be relative to the output shaft 122, through the second opening structure 12232. In an embodiment, the connection wire 40 may be disposed in the limiting hole 1241 and may extend to the external environment relative to the output shaft 122 through the limiting hole 1241.

In an embodiment, the shape of the limiting hole 1241 may be adapted to the shape of the connecting wire 40. The surface of the connecting wire 40 can be attached to the inner wall of the limiting hole 1241 or have a small gap. Therefore, the clamping member 124 can provide a limiting function for the portion of the connection wire 40 near the position of the second opening structure 12232, so as to fix the position of the connection wire 40 relative to the output shaft 122.

In some embodiments, the clip member 124 further has an assembling slot 1242, and the assembling slot 1242 may also penetrate through the clip member 124 along the axial direction of the output shaft 122. In addition, the assembling groove 1242 may extend from the peripheral side surface of the clip 124 toward the inside of the clip 124 until communicating with the limiting hole 1241. It is understood that the end of the slot 1242 remote from the hole 1241 may communicate with the external environment relative to the clip 124. When assembling the motor 12, the connecting wire 40 can be first installed in the limiting hole 1241 through the assembling slot 1242, and after the connecting wire 40 and the clip member 124 are assembled in place, the clip member 124 is inserted into the wire routing hole 1223 through the second opening structure 12232.

As shown in fig. 3, 5 to 7, and 9, at least one guide block 1243 is further protruded from the periphery of the clip 124. One end of the second connecting portion 1222 near the second opening structure 12232 is opened with at least one guiding slot 1224 adapted to the guiding block 1243.

In some embodiments, two symmetrical guide blocks 1243 may be protruded from the peripheral side of the clip 124, and the guide blocks 1243 may be located at an end of the clip 124 away from the first opening structure 12231. The second connecting portion 1222 may be formed with two symmetrical guiding slots 1224, and one end of the guiding slot 1224 near the second opening structure 12232 may be an opening. That is, the guide slots 1224 may be U-shaped slot structures. The depth of the guide groove 1224 may be equal to or slightly greater than the height of the guide block 1243 in parallel with the axial direction of the output shaft 122.

In other embodiments, the number of the guide blocks 1243 on the peripheral side of the clamping member 124 can be set to one, three or five, etc. according to the requirement. Correspondingly, the guide slots 1224 on the output shaft 122 may be equally arranged according to the number of the guide blocks 1243, and correspond to the guide blocks 1243 one to one.

When the clip 124 is inserted into the wire hole 1223, the two guide blocks 1243 are inserted into the two guide slots 1224 in a one-to-one correspondence. Therefore, the positioning and installation of the clamping piece 124 and the output shaft 122 can be realized. Meanwhile, the connecting wire 40 can be positioned and installed, and the torsion of the connecting wire 40 is reduced.

In addition, when the clip 124 is inserted into the wire hole 1223, the applied force can also act on the position of the guide block 1243 to avoid the connecting wire 40. Therefore, the clamping member 124 can be conveniently inserted into the wire hole 1223 by force application. Meanwhile, damage to the connection line 40 can be avoided.

In some embodiments, the clip 124 may be a silicone clip or a rubber clip.

In an embodiment, as shown in fig. 7, in the wire hole 1223, the length of the connecting wire 40 may be greater than the extended length of the wire hole 1223. That is, there is redundancy in the length of the connecting wire 40 in the routing hole 1223. When the motor body 121 drives the output shaft 122 to vibrate during the use of the electric toothbrush, the pulling force applied to the connecting wire 40 can be reduced, and the probability that the connecting wire 40 is pulled and broken is reduced, so that the service life of the connecting wire 40 can be further prolonged, and the service life of the electric toothbrush can be further prolonged.

As shown in fig. 1-3, further, the adapter rod assembly 20 may include an adapter rod 21 and a cover plate 22. The adapter rod 21 may be a hollow rod-shaped structure. Accordingly, the inside of the adapting rod 21 may be opened with a connection hole 211. The connection hole 211 may penetrate through the adapter rod 21, and an axial direction of the connection hole 211 may be coaxial with an axial direction of the output shaft 122.

Referring to fig. 6 and 9 together, one end of the adapting lever 21 may be connected to the second connecting portion 1222 of the output shaft 122. Specifically, in some embodiments, an opening of the connection hole 211 near one end of the second connection portion 1222 may be opened on an end surface of the adapting lever 21 near one end of the second connection portion 1222. A portion of the second connecting portion 1222 protruding with respect to the main housing 11 may be inserted into the connecting hole 211 of the adapter lever 21. Accordingly, the wire hole 1223 can also communicate with the connection hole 211 through the limiting hole 1241.

In some embodiments, a waterproof glue (not shown) may be further filled in the assembly gap between the second connection portion 1222 and the connection hole 211. On the one hand, a fixed connection of the output shaft 122 to the adapter rod 21 can be achieved. On the other hand, the sealing and waterproof function of the connecting position of the output shaft 122 and the adapting rod 21 can also be realized through waterproof glue.

As shown in fig. 3 and 10, in some embodiments, the connection hole 211 may be a stepped hole, that is, may include a first step connection hole 2111 and a second step connection hole 2112 communicating with each other. Wherein the first step connection hole 2111 is close to the second connection portion 1222 with respect to the second step connection hole 2112. Meanwhile, a connection position of the first-step connection hole 2111 and the second-step connection hole 2112 may be formed with an abutment surface 2113, with the abutment surface 2113 facing the second connection portion 1222 side. When the second connecting portion 1222 and the adapting rod 21 are assembled in place, an end surface of the second connecting portion 1222 near one end of the second opening structure 12232 may abut against the abutting surface 2113, thereby reflecting that the second connecting portion 1222 and the adapting rod 21 are assembled in place.

Of course, in some embodiments, the inner wall of the second step connection hole 2112 may protrude toward the first step connection hole 2111 and form an extension 2114 at a position opposite to the guide groove 1224 of the second connection portion 1222. Accordingly, the abutment surface 2113 may also extend in the direction of the first-step connection hole 2111 through the extension portion 2114. When the second connecting portion 1222 and the adapting rod 21 are assembled in place, one end of the extension portion 2114 near the first-step connecting hole 2111 may abut against the groove bottom of the guide groove 1224. That is, extension 2114 may be inserted into guide slot 1224. This also enables a fixed mounting between the second connecting part 1222 and the adapter rod 21.

As shown in fig. 4, 5 and 10, at least one first positioning portion 1225 is further provided on the peripheral side of the second connecting portion 1222. The inner wall of the first-step connection hole 2111 is further provided with at least one second positioning portion 212 engaged with the first positioning portion 1225.

In some embodiments, a first positioning portion 1225 may be disposed on the peripheral side of the second connecting portion 1222, and the first positioning portion 1225 may be in a slot-like structure. Correspondingly, the inner wall of the first-step connection hole 2111 may be provided with a second positioning portion 212, and the second positioning portion 212 may be a latch-shaped structure protruding relative to the inner wall of the first-step connection hole 2111. When the second connecting portion 1222 is connected to the adapter rod 21 in place, the second positioning portion 212 may be clamped in the first positioning portion 1225, so as to prevent the output shaft 122 and the adapter rod 21 from moving randomly, and facilitate the subsequent curing of the waterproof adhesive between the output shaft 122 and the adapter rod 21, so as to completely fix the output shaft 122 and the adapter rod 21.

In other embodiments, two, three or five first positioning portions 1225 may be disposed on the peripheral side of the second connecting portion 1222, and the first positioning portions 1225 may be a latch-shaped structure protruding relative to the outer side wall of the second connecting portion 1222. Correspondingly, the inner wall of the first-step connection hole 2111 may be provided with the same number of second positioning portions 212 as the first positioning portions 1225, and the second positioning portions 212 may be in a slot-shaped structure opened on the inner wall of the first-step connection hole 2111.

As shown in fig. 2, 3 and 10, an opening of the connecting hole 211 at an end away from the second connecting portion 1222 may be opened at a circumferential side of the adapting lever 21, and the opening may allow the bracket 50 to pass through. In some embodiments, the information collecting member 30 may be mounted on the adapting rod 21 through a bracket 50, and the bracket 50 may be opposite to an opening of the connecting hole 211 at an end away from the second connecting portion 1222. In an embodiment, the opening of the connecting hole 211 at the end away from the output shaft 122 can be closed by the cover 22, and the structural limitation of the bracket 50 and the information collecting member 30 can be realized, so as to fix the information collecting member 30 and the bracket 50 at the end of the adapting rod assembly 20 away from the second connecting portion 1222.

Referring to fig. 7 and 9, an end of the connection line 40 away from the main control board 13 may be connected to the information collecting element 30, that is, the information collecting element 30 may be electrically connected to the main control board 13 through the connection line 40. Therefore, the information acquisition part 30 and the main control board 13 can transmit information and electric energy through the connecting line 40. In an embodiment, the connecting wire 40 may be sequentially inserted into the connecting hole 211, the limiting hole 1241, the wire-passing hole 1223, and the mounting cavity 111.

In some embodiments, the information collecting element 30 may be an image collecting element such as a camera, which can collect image information. It is understood that the adapter rod assembly 20 may be provided with an escape opening for the information collecting member 30 to receive and transmit signals.

In other embodiments, the information collecting component 30 may also be a temperature sensor, a color sensor, or a distance sensor, and the like, and may collect temperature information, color information, or distance information, respectively.

As shown in fig. 1-3, a brushhead 200 is removably attached to the end of the adapter rod assembly 20 adjacent the information acquisition member 30. Specifically, the brush head 200 may be sleeved on an end of the adapter rod assembly 20 close to the information collecting member 30, and the brush head 200 may be tightly fitted and connected with the adapter rod assembly 20. When the information acquisition part 30 is not needed for information acquisition or the oral cavity cleaning function is provided through the electric toothbrush, the brush head 200 can cover the information acquisition part 30 when the adapter rod component 20 is sleeved with the brush head 200, and can provide a protection function for the information acquisition part 30, so that the service life of the information acquisition part 30 can be prolonged. It will be appreciated that when the head 200 is connected to the adapter rod assembly 20, the output shaft 122 can transmit a vibratory action through the adapter rod assembly 20 to the head 200, which can drive the head 200 to vibrate to provide a cleaning function.

When a user needs to acquire image information through the information acquisition member 30, the brush head 200 can be detached.

As shown in fig. 1 to 10, in an embodiment, the electric toothbrush can be assembled according to the following steps:

step one, the connecting wire 40 is inserted into the wire hole 1223 of the output shaft 122, and one end of the connecting wire 40 close to the first opening structure 12231 is welded to the main control board 13;

step two, the position of the connecting wire 40 close to the second opening structure 12232 is installed in the limiting hole 1241 of the clamping piece 124, and the clamping piece 124 is inserted into the wire routing hole 1223 through the second opening structure 12232;

step three, the main control board 13 and the motor 12 are installed in the main casing 11, and the bell-shaped cover 61 and the decoration piece 62 are sequentially sleeved at one end of the main casing 11 close to the second connecting portion 1222;

step four, connecting the information acquisition part 30 to one end of the connecting wire 40 far away from the main control board 13;

step five, one end of the connecting line 40, which is connected with the information acquisition part 30, penetrates through the connecting hole 211 of the adapter rod 21;

sixthly, coating waterproof glue on the peripheral side surface of the protruding part of the second connecting part 1222 relative to the main shell 11, and aligning and assembling the second connecting part 1222 and the adapting rod 21;

step seven, the information acquisition part 30 is mounted at one end of the adapter rod 21 far away from the second connecting part 1222 through the bracket 50, and covers the upper cover plate 22;

step eight, the brush head 200 is sleeved on one end of the adapting rod assembly 20 far away from the second connecting portion 1222.

In some embodiments, step four may also be performed before step one. In one embodiment, the size of the wire hole 1223 and the size of the connection hole 211 can allow the information collecting member 30 to pass through smoothly. It will be appreciated that the order of assembly of the steps of the electric toothbrush is not limited to the order of assembly provided in the above embodiments.

In the prior art, the connecting wire 40 is usually arranged outside the output shaft 122. During assembly, the connecting line 40 and the output shaft 122 are inserted through the main housing 11 in parallel. Therefore, in addition to the waterproof structure for the output shaft 122, the waterproof structure for the connection wire 40 is required, thereby increasing the cost of the electric toothbrush.

In the present application, the connection line 40 for connecting the information collecting member 30 and the main control board 13 is disposed in the output shaft 122, that is, the connection line 40 is connected out from the main housing 11 through the output shaft 122. When the electric toothbrush is assembled, the sealing and the waterproofing of the connecting wire 40 do not need to be additionally considered, a sealing and waterproofing structure does not need to be added, and only the sealing and the waterproofing of the connecting position of the output shaft 122 need to be carried out. On the one hand, the structure of the electric toothbrush can be simplified, and the cost can be reduced. On the other hand, the assembling steps of the electric toothbrush can be reduced, the assembling efficiency is improved, and the productivity is improved.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. An electric motor, characterized in that the electric motor comprises a motor main body and an output shaft;

the output shaft comprises a first connecting part and a second connecting part which are connected, and the first connecting part is connected with the motor main body;

a wire-passing hole is formed in the second connecting portion, and one end, close to the first connecting portion, of the second connecting portion extends to one end, far away from the first connecting portion, of the second connecting portion.

2. The motor of claim 1, wherein the wiring hole comprises a first opening structure, the first opening structure is arranged on the periphery of one end of the second connecting part close to the first connecting part;

the inner wall of the wiring hole close to one end of the first opening structure comprises an arc transition section, and the arc transition section is opposite to the first opening structure.

3. The motor of claim 1, wherein the wiring hole comprises a first opening structure, and the first opening structure is arranged on the periphery of one end of the second connecting part close to the first connecting part;

the motor still includes the flexible sleeve, the flexible sleeve is including all being annular first protection part and second protection part, the second protection part connect in the circumference of first protection part one end, first protection part is inserted and is located first open structure, the second protection part laminate in the second connecting portion are kept away from a side surface in line hole.

4. A motor according to any of claims 1 to 3, wherein the wiring hole further comprises a second opening structure, the second opening structure being provided at an end of the second connecting portion remote from the first connecting portion;

the motor further comprises a flexible clamping piece, the clamping piece is inserted into one end, close to the second opening structure, of the wiring hole, a limiting hole is formed in the clamping piece, and the limiting hole is coaxial and communicated with the wiring hole.

5. The motor of claim 4, wherein the clamping member is further provided with an assembling groove;

the assembly groove by the week side surface of joint spare, to the inside extension of joint spare, until with spacing hole intercommunication.

6. The motor according to claim 4, wherein at least one guide groove is further formed on the periphery of one end of the second connecting portion, which is far away from the first connecting portion, the at least one guide groove is communicated with the wiring hole, and one end of the guide groove, which is far away from the first connecting portion, is open;

the periphery of the clamping piece is convexly provided with at least one guide block, and the at least one guide block is inserted into the at least one guide groove in a one-to-one correspondence mode.

7. A handle is characterized by comprising a handle main body, a switching rod assembly, an information acquisition piece and a connecting line;

wherein the handle body comprises the motor of any one of claims 1 to 6;

the adapter rod assembly is connected to the second connecting part, and the information acquisition part is mounted on the adapter rod assembly;

the connecting wires are arranged in the adapter rod assembly and the wiring holes.

8. The handle of claim 7, wherein the adapter rod assembly has a connecting hole formed therein that is coaxial with the output shaft, and the second connecting portion is inserted into the connecting hole;

the periphery of the second connecting portion is further provided with at least one first positioning portion, the inner wall of the connecting hole is provided with at least one second positioning portion, and the at least one second positioning portion is connected with the at least one first positioning portion in a clamping mode in a one-to-one correspondence mode.

9. An electric toothbrush comprising a handle according to claim 7 or 8.

10. The electric toothbrush of claim 9, wherein the information collecting member is mounted to an end of the adapter rod assembly remote from the second connecting portion;

the electric toothbrush further comprises a brush head, and the brush head is sleeved on one end of the adapter rod assembly, which is provided with the information acquisition part.

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