CN210839296U - Motor assembly and electric toothbrush - Google Patents
Motor assembly and electric toothbrush Download PDFInfo
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- CN210839296U CN210839296U CN201922424666.0U CN201922424666U CN210839296U CN 210839296 U CN210839296 U CN 210839296U CN 201922424666 U CN201922424666 U CN 201922424666U CN 210839296 U CN210839296 U CN 210839296U
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Abstract
The utility model discloses a motor assembly and electric toothbrush relates to motor installation technical field. This motor assembly includes installing support and actuating mechanism, actuating mechanism includes the rotor, stator tooth and stator coil, the installing support is used for connecting in electric toothbrush's brush holder, the installing support is including installation lid and installation main part, be equipped with first accommodation space and the first installing opening of mutual intercommunication in the installation main part, first installing opening is located to installation lid, and with the common centre gripping rotor of installation main part in first accommodation space, the rotor can rotate for the installation main part, and be connected with electric toothbrush's brush head transmission, stator coil is around the lateral surface of locating the installation main part, stator tooth connects in the installation main part, and wear to locate stator coil, and correspond with the rotor. The motor assembly and the electric toothbrush have the characteristic of small overall size.
Description
Technical Field
The utility model relates to a motor installation technical field particularly, relates to a motor assembly and electric toothbrush.
Background
Along with the improvement of the quality of life of people, the attention on oral health care is more and more, and the electric toothbrush also more and more walks into family life.
At present, an electric toothbrush drives a brush head to act through a motor, the existing motor structure is that the motor is directly installed in a bracket after being assembled, and then the motor is wrapped by the bracket and then is installed in a shell of a brush handle, so that the whole volume of the electric toothbrush is larger.
In view of the above, it is important to develop a motor assembly and an electric toothbrush that can solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a motor assembly, it has the less characteristics of whole volume.
Another object of the present invention is to provide an electric toothbrush, which has a smaller overall size.
The utility model provides a technical scheme:
in a first aspect, an embodiment of the present invention provides a motor assembly, including a mounting bracket and a driving mechanism, where the driving mechanism includes a rotor, stator teeth, and a stator coil; the mounting bracket is used for being connected into a brush handle of the electric toothbrush, the mounting bracket comprises a mounting cover body and a mounting main body, a first accommodating space and a first mounting opening which are communicated with each other are arranged on the mounting main body, the mounting cover body is covered on the first mounting opening and clamps the rotor in the first accommodating space together with the mounting main body, and the rotor can rotate relative to the mounting main body and is used for being in transmission connection with a brush head of the electric toothbrush; the stator coil is wound on the outer side surface of the mounting main body, and the stator teeth are connected to the mounting main body, penetrate through the stator coil and correspond to the rotor.
With reference to the first aspect, in a first implementation manner of the first aspect, the mounting main body is in a strip shape, and the first mounting opening is located on a side surface of the mounting main body and can be penetrated by the rotor, so that the rotor can be installed in the first accommodating space through the first mounting opening.
With reference to the first aspect and the foregoing implementation manner, in a second implementation manner of the first aspect, one end of the installation cover body is a clamping end, the clamping end is connected to the edge of the first installation opening in a clamping manner, one end of the installation cover body, which is far away from the clamping end, is detachably connected to the edge of the first installation opening, and is detachably connected to the first installation opening.
With reference to the first aspect and the foregoing implementation manner, in a third implementation manner of the first aspect, the clamping end is configured to clamp the rotor together with the mounting main body, an end face of the clamping end is a clamping end face, a first clamping protrusion is convexly arranged on the clamping end face, and a first clamping portion is convexly arranged on the first clamping protrusion; the intercommunication is seted up at first installation open-ended border the joint breach of first accommodation space, first joint arch is located the joint breach, just first joint portion is located in the first accommodation space to support hold in the wall of first accommodation space, with detachably joint the exposed core in the installation main part.
With reference to the first aspect and the foregoing implementation manner, in a fourth implementation manner of the first aspect, an end surface of the clamping end is a clamping end surface, and a clamping interval is left between the first clamping portion and the clamping end surface; the wall surface of the first accommodating space is convexly provided with a first clamping convex block, the first clamping convex block is positioned in the clamping interval and is respectively abutted to the first clamping part and/or the clamping end surface.
With reference to the first aspect and the foregoing implementation manner, in a fifth implementation manner of the first aspect, a stator connecting portion is convexly disposed on an outer side surface of the mounting main body, a fixing hole is disposed at an end of the stator connecting portion, which is away from the mounting main body, and the fixing hole is communicated with the first accommodating space; the stator coil is wound on the stator connecting part, and the stator teeth are arranged in the fixing holes in a penetrating mode.
With reference to the first aspect and the foregoing implementation manner, in a sixth implementation manner of the first aspect, the number of the stator teeth, the number of the stator coils, and the number of the stator connecting parts are two, and the two stator connecting parts are symmetrically arranged on an outer side surface of the mounting body; the stator tooth includes tooth portion and yoke portion, yoke portion is the setting of U type, the tooth portion wear to locate in the fixed orifices, and with the middle part of yoke portion is connected, installation main part one side two tip of yoke portion respectively with the installation main part opposite side two tip of yoke portion meet.
With reference to the first aspect and the foregoing implementation manner, in a seventh implementation manner of the first aspect, one end of the mounting main body is an output end, an output opening is formed in the output end, and the mounting bracket further includes a sealing element, which is sleeved on the output end and clamped to the output end; the rotor can partially extend out of the first accommodating space from the output opening and penetrate through the sealing piece to be connected with the brush head.
With reference to the first aspect and the foregoing implementation manner, in an eighth implementation manner of the first aspect, the motor assembly further includes a power supply, and the power supply is electrically connected to the stator coil; the mounting main body is further provided with a second accommodating space and a second mounting opening which are communicated with each other, the second mounting opening is located on the side face of the mounting main body and can allow the power supply to pass through, and the second accommodating space is used for accommodating the power supply.
In a second aspect, the embodiment of the present invention further provides an electric toothbrush, which comprises a brush head, a brush handle and the motor assembly; the motor assembly comprises a mounting bracket and a driving mechanism, wherein the driving mechanism comprises a rotor, stator teeth and a stator coil; the mounting bracket is used for being connected into a brush handle of the electric toothbrush, the mounting bracket comprises a mounting cover body and a mounting main body, a first accommodating space and a first mounting opening which are communicated with each other are arranged on the mounting main body, the mounting cover body is covered on the first mounting opening and clamps the rotor in the first accommodating space together with the mounting main body, and the rotor can rotate relative to the mounting main body and is used for being in transmission connection with a brush head of the electric toothbrush; the stator coil is wound on the outer side surface of the mounting main body, and the stator teeth are connected to the mounting main body, penetrate through the stator coil and correspond to the rotor.
Compared with the prior art, the embodiment of the utility model provides a motor assembly and electric toothbrush include for prior art's beneficial effect:
the driving mechanism comprises a rotor, stator teeth and a stator coil, the mounting bracket is used for being connected in a brush handle of the electric toothbrush, the mounting bracket comprises a mounting cover body and a mounting main body, a first accommodating space and a first mounting opening are formed in the mounting main body, the first accommodating space is communicated with the first mounting opening, the mounting cover body is arranged in the first mounting opening and clamps the rotor in the first accommodating space together with the mounting main body, the rotor can rotate relative to the mounting main body, and the rotor is used for being in transmission connection with a brush head of the electric toothbrush. The stator coil is wound on the outer side surface of the mounting main body, and the stator teeth are connected to the mounting main body, penetrate through the stator coil and correspond to the rotor so as to drive the rotor to swing. Thus, the mounting main body is designed to directly mount the rotor, the stator teeth and the stator coils, so that a bracket for separately mounting the rotor, the stator coils and the stator teeth is omitted, the size of the motor assembly is reduced, a user can conveniently hold the motor assembly, and the mounting mode of clamping the rotor by the mounting cover body and the mounting main body is adopted, so that the rotor is more flexibly and conveniently assembled. And, the structure of the motor is simplified, and the noise can be reduced.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
Fig. 1 is a schematic structural view of an electric toothbrush with a motor assembly according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of an assembled motor assembly according to an embodiment of the present invention.
Fig. 3 is an exploded schematic view of a motor assembly according to an embodiment of the present invention.
Fig. 4 is a schematic perspective view of an installation cover of a motor assembly according to an embodiment of the present invention.
Fig. 5 is an enlarged view of a portion of the structure at V in fig. 3.
Fig. 6 is an enlarged view of a portion of the structure at VI in fig. 3.
Fig. 7 is an exploded schematic view of a mounting main body, a mounting cover body and a rotor of another structural form of a motor assembly according to an embodiment of the present invention.
Fig. 8 is an exploded view of the motor assembly according to the embodiment of the present invention when only the stator teeth are separated.
Fig. 9 is a schematic structural diagram of an assembled motor assembly according to an embodiment of the present invention.
Fig. 10 is a schematic cross-sectional view taken along line a-a in fig. 9.
Icon: 100-an electric toothbrush; 20-a brush head; 30-a brush handle; 10-a motor assembly; 12-mounting a bracket; 121-installing a cover body; 1211-a second catch groove; 1212-a clamping end; 1213-clamping end face; 1214-a first snap projection; 1215-a first clamping portion; 1216-guide slope; 1217-clamping interval; 1218-a second snap projection; 123-a mounting body; 1231-a first accommodating space; 12312-first mounting opening; 12313-clamping notch; 12314-Snap opening; 12315 — output opening; 12317 — output; 12316-connecting vias; 1232 — a second accommodating space; 12321-a second mounting opening; 12322-snap clip spring; 1235-first snap tab; 1236-second snap tab; 1237-stator connection; 12371-fixation hole; 1239-stator fixation; 1238-a clamping block; 125-a seal; 1251-a seal; 1252-card interface; 1253-a sealed connection; 13-a drive mechanism; 131-a rotor; 1312-a rotating shaft; 1313-iron core; 1314-a magnet; 1315-bearings; 1316-shrapnel; 132-stator teeth; 1321-tooth; 1322-yoke; 133-stator coils; 15-power supply.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. The terms "upper", "lower", "inner", "outer", "left", "right", and the like refer to orientations or positional relationships based on those shown in the drawings, or orientations or positional relationships that are conventionally used to place the products of the present invention, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used merely to facilitate the description of the present invention and to simplify the description, but do not indicate or imply that the device or component being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It is also to be understood that, unless expressly stated or limited otherwise, the terms "disposed," "connected," and the like are intended to be open-ended, and mean "connected," i.e., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The following describes in detail embodiments of the present invention with reference to the accompanying drawings.
Example (b):
referring to fig. 1, fig. 1 is a schematic structural view illustrating a motor assembly 10 applied to an electric toothbrush 100 according to an embodiment of the present invention.
An embodiment of the utility model provides a motor assembly 10, this motor assembly 10 have the less characteristics of whole volume. The motor assembly 10 can be applied to a scene requiring vibration, such as an electric toothbrush 100, a depilating apparatus, a beauty apparatus, a skin tendering apparatus, and a tooth rinsing apparatus, and the motor assembly 10 can be independently used.
In the embodiment of the present invention, the motor assembly 10 is applied to the electric toothbrush 100, the electric toothbrush 100 includes the motor assembly 10 to provide a vibration power source, and the electric toothbrush 100 may further include a brush head 20 and a brush handle 30, the motor assembly 10 may be mounted in the brush handle 30 and is in transmission connection with the brush head 20 to drive the brush head 20 to vibrate, so as to complete the brushing action.
Because the electric toothbrush 100 adopts the motor assembly 10 provided by the embodiment of the present invention, the electric toothbrush 100 also has the characteristic of small overall size.
The structural composition, the working principle and the advantageous effects of the motor assembly 10 provided by the embodiment of the present invention will be described in detail below.
Referring to fig. 2 and fig. 3, fig. 2 is a schematic perspective view of an assembled motor assembly 10 according to an embodiment of the present invention. Fig. 3 is an exploded schematic view of the motor assembly 10 according to an embodiment of the present invention.
The motor assembly 10 includes a mounting bracket 12 and a driving mechanism 13, the driving mechanism 13 includes a rotor 131, stator teeth 132 and stator coils 133, and the mounting bracket 12 is configured to be connected to the brush handle 30 of the electric toothbrush 100, wherein the mounting bracket 12 includes a mounting cover 121 and a mounting body 123, a first accommodating space 1231 and a first mounting opening 12312 are disposed on the mounting body 123, the first accommodating space 1231 is communicated with the first mounting opening 12312, the mounting cover 121 is disposed on the first mounting opening 12312 and clamps the rotor 131 in the first accommodating space 1231 together with the mounting body 123, and the rotor 131 can rotate relative to the mounting body 123, and the rotor 131 is configured to be in transmission connection with the brush head 20 of the electric toothbrush 100. The stator coil 133 is wound on the outer side surface of the mounting body 123, and the stator teeth 132 are connected to the mounting body 123, penetrate through the stator coil 133, and correspond to the rotor 131 so as to drive the rotor 131 to swing.
Thus, the mounting body 123 is designed to directly mount the rotor 131, the stator teeth 132 and the stator coils 133, so as to omit a bracket for separately mounting the rotor 131, the stator coils 133 and the stator teeth 132, reduce the volume of the motor assembly 10, facilitate the holding of a user, and enable the assembly of the rotor 131 to be more flexible and convenient by the mounting manner of jointly clamping the rotor 131 by the mounting cover 121 and the mounting body 123. And, the structure of the motor is simplified, and the noise can be reduced.
It should be noted that the motor part composed of the rotor 131, the stator coil 133 and the stator teeth 132 assembled by the above-mentioned mounting structure may have a larger diameter than the existing structure in the same size of mounting space, so as to increase the torque of the electric toothbrush 100 or reduce the power consumption of the electric toothbrush 100.
Further, the mounting body 123 is disposed in a bar shape, and the first mounting opening 12312 is located at a side surface of the mounting body 123, and the first mounting opening 12312 can allow the rotor 131 to pass through, so that the rotor 131 can be installed in the first accommodating space 1231 through the first mounting opening 12312. Thus, during assembly, the rotor 131 can be firstly disposed in the first accommodating space 1231 through the first mounting opening 12312, and then the cover 121 is connected and mounted at the first mounting opening 12312, so as to complete assembly of the rotor 131, and the assembly manner of assembling the rotor 131 on the side surface of the mounting body 123 is simple, and the assembly efficiency is high.
It should be noted that the rotor 131 may include a rotating shaft 1312, an iron core 1313, a magnet 1314, a bearing 1315, and a spring 1316, the magnet 1314 is installed on the iron core 1313, the iron core 1313 is installed on the rotating shaft 1312, and the bearing 1315 is sleeved on the rotating shaft 1312, wherein the iron core 1313 may be a ferromagnetic material, such as iron, nickel cobalt, and alloys thereof. The mounting cover 121 and the mounting body 123 jointly clamp the rotating shaft 1312 to connect the rotor 131 and the first accommodating space 1231, and the rotating shaft 1312, the iron core 1313 and the magnet 1314 can rotate relative to the mounting body 123, one end of the rotating shaft 1312 extends out of the first accommodating space 1231 from the output opening 12315 of the mounting body 123, and the other end of the rotating shaft 1312 is connected with the elastic sheet 1316, and one end of the elastic sheet 1316 far away from the rotating shaft 1312 can be clamped between the mounting body 123 and the mounting cover 121.
Thus, during assembly, the stator coil 133 and the stator teeth 132 can be assembled to the mounting body 123 before or after the rotating shaft 1312 extends into the first accommodating space 1231, the rotating shaft 1312 extends out of the output opening 12315, so that a portion of the rotating shaft 1312 extends out of the first accommodating space 1231, one end of the elastic sheet 1316 away from the rotating shaft 1312 is clamped to the mounting body 123, the mounting cover 121 is covered on the first mounting opening 12312, the mounting cover 121 and the mounting body 123 jointly clamp the bearing 1315, and the mounting cover 121 and the mounting body 123 jointly clamp the elastic sheet 1316, so as to complete assembly of the rotor 131.
With reference to fig. 2 and fig. 3, the motor assembly 10 may further include a power source 15, the power source 15 is electrically connected to the stator coil 133, the mounting body 123 may further have a second accommodating space 1232 and a second mounting opening 12321, the second mounting opening 12321 is also located on a side surface of the mounting body 123, the second mounting opening 12321 is capable of allowing the power source 15 to pass through, and the second accommodating space 1232 is used for accommodating the power source 15, when the mounting bracket 12 is assembled in the handle 30, the power source 15 may be firstly installed in the second accommodating space 1232 through the second mounting opening 12321, and then the mounting bracket 12 is installed in the handle 30, so that the power source 15 is conveniently installed.
Further, a plurality of clamping spring pieces 12322 can be arranged on the mounting main body 123, the clamping spring pieces 12322 are respectively arranged on the edges of the second mounting openings 12321, and the clamping spring pieces 12322 are used for clamping the power supply 15 together. When the power supply 15 is installed in the second accommodating space 1232, the power supply 15 pushes the plurality of clamping elastic pieces 12322 open, and after the power supply 15 is pushed into the second accommodating space 1232, the plurality of clamping elastic pieces 12322 are pressed on the outer side surface of the power supply 15, so that the power supply 15 is fixed in the second accommodating space 1232.
Referring to fig. 3 and 4, fig. 4 is a schematic perspective view of a mounting cover 121 of a motor assembly 10 according to an embodiment of the present invention.
A first retaining groove (not shown) may be formed in the mounting body 123, an end portion of the elastic sheet 1316 away from the rotating shaft 1312 is retained in the first retaining groove, a second retaining groove 1211 opposite to the first retaining groove may be formed at an end of the mounting cover 121, and when the mounting cover 121 is covered in the first mounting opening 12312, another portion of the end of the elastic sheet 1316 away from the rotating shaft 1312 may be retained in the second retaining groove 1211.
It should be noted that the second retaining groove 1211 can be a groove with an increasing caliber along the opening direction, or the opening portion of the second retaining groove 1211 is disposed with a wide mouth, so that the elastic sheet 1316 can be easily retained in the second retaining groove 1211 when the mounting cover 121 is disposed over the first mounting opening 12312.
Referring to fig. 2, 5 and 6, fig. 5 is an enlarged view of a portion of the structure at V in fig. 3. Fig. 6 is an enlarged view of a portion of the structure at VI in fig. 3.
The manner of covering the first mounting opening 12312 by the mounting cover 121 may be: one end of the mounting cover 121 is clamped to the edge of the first mounting opening 12312, and the other end of the mounting cover 121 is detachably connected to the edge of the first mounting opening 12312 to detachably cover the first mounting opening 12312. During assembly, one end of the mounting cover body 121 can be clamped on the edge of the first mounting opening 12312, and the other end of the mounting cover body is connected with the edge of the first mounting opening 12312.
Further, one end of the mounting cover 121 is a clamping end 1212, and the clamping end 1212 is an end that clamps the rotor 131 together with the mounting body 123, and an end surface of the clamping end 1212 is a clamping end surface 1213, a first engaging protrusion 1214 may be protruded on the clamping end surface 1213, and a first engaging portion 1215 may be protruded on the first engaging protrusion 1214.
Correspondingly, a clamping notch 12313 communicating with the first accommodating space 1231 may be opened at the edge of the first mounting opening 12312, after the clamping end 1212 is clamped in the clamping notch 12313, the first clamping protrusion 1214 is located in the clamping notch 12313, and the first clamping portion 1215 abuts against the inner wall of the first accommodating space 1231, in other words, the clamping notch 12313 can allow the first clamping protrusion 1214 and the first clamping portion 1215 to pass through, and when the clamping end 1212 and the mounting body 123 are connected, the clamping notch 12313 can first extend the first clamping protrusion 1214 and the first clamping portion 1215 into the first accommodating space 1231, and the mounting cover 121 is turned over, so that the first clamping portion 1215 abuts against the wall surface of the first accommodating space 1231, and meanwhile, the clamping end 1212 and the mounting body 123 clamp the bearing 1315 together, thereby locking the position of the clamping end 1212, and ensuring a stable clamping bearing 1315 between the clamping end 1212 and the mounting body 123.
It should be noted that the number of the first clamping portions 1215 may be two, and the first clamping protrusions 1214 are symmetrically disposed, and the first clamping protrusions 1214 are simultaneously abutted against the inner wall of the first accommodating space 1231 through the two first clamping portions 1215, so as to improve the stability of the clamping end 1212 and the mounting body 123 for clamping the bearing 1315.
Further, a clamping interval 1217 may be left between the first clamping portion 1215 and the clamping end face 1213, correspondingly, a first clamping protrusion 1235 is convexly disposed on the wall surface of the first accommodating space 1231, and when the clamping end 1212 is clamped in the clamping notch 12313, the first clamping protrusion 1235 is located in the clamping interval 1217, and the first clamping protrusion 1235 abuts against the first clamping portion 1215 or the clamping end face 1213, so as to limit the displacement of the clamping end 1212 on the clamping end face 1213, and further improve the stability of the clamping end 1212 and the mounting body 123 for clamping the bearing 1315. It should be noted that, in other embodiments, the first latching protrusion 1235 can also only abut against the first latching portion 1215 or the clamping end surface 1213.
It should be noted that one end of the body may be detachably attached to the mounting body 123 by a screw.
Further, the length of the clamping notch 12313 may be greater than the length of the first clamping protrusion 1214, and the wall surface of the first accommodating space 1231 may further be provided with a second clamping protrusion 1236 in a protruding manner, the second clamping protrusion 1236 is disposed near the edge of the clamping notch 12313, and the second clamping protrusion 1236 is disposed at the end of the clamping notch 12313 near the first mounting opening 12312, when the clamping and holding end 1212 and the mounting body 123 are clamped, the first clamping portion 1215 can extend into the first accommodating space 1231 from the end of the clamping notch 12313 far from the first mounting opening 12312, and moves to the first mounting opening 12312 along the edge of the clamping notch 12313 along with the first clamping protrusion 1214, so that the first clamping portion 1215 abuts against the side of the second clamping protrusion 1236 near the rotor 131, that is to say, the first clamping portion 1215 does not abut against the inner wall of the first accommodating space 1231 when extending into the first mounting opening 12312, and moves along the clamping notch 12313, the first clamping portion 1215 abuts against a side of the second clamping protrusion 1236 close to the rotating shaft 1312 to clamp the clamping end 1212 to the mounting body 123.
It should be noted that, a guiding inclined plane 1216 may be further disposed on a side of the first clamping portion 1215 close to the clamping end 1212, and the guiding inclined plane 1216 extends to a side where the first clamping portion 1215 and the second clamping protrusion 1236 abut, so that when the first clamping portion 1215 extends into the first accommodating space 1231 from the first mounting opening 12312 and moves toward the second clamping protrusion 1236 along the clamping notch 12313, the guiding inclined plane 1216 first abuts against the second clamping protrusion 1236 and gradually slides to a side of the second clamping protrusion 1236 close to the rotating shaft 1312, so that the first clamping portion 1215 abuts against a side of the second clamping protrusion 1236 close to the rotating shaft 1312.
Referring to fig. 7, fig. 7 is an exploded view of the mounting body 123, the mounting cover 121 and the rotor 131 of another structural form of the motor assembly 10 according to the embodiment of the present invention.
It should be noted that the mounting cover 121 is also connected to the mounting body 123 in the following manner, and the clamping end 1212 is detachably connected to the mounting body 123 by a connector such as a screw. A second clamping protrusion 1218 is protruded from an end of the mounting cover 121 away from the clamping end 1212, a clamping opening 12314 is further formed at an edge of the first mounting opening 12312, and the second clamping protrusion 1218 is clamped in the clamping opening 12314 to connect the end of the mounting cover 121 away from the clamping end 1212 to the mounting body 123.
Referring to fig. 8, fig. 8 is an exploded view of the motor assembly 10 according to the embodiment of the present invention when only the stator teeth 132 are separated.
The outer side surface of the mounting body 123 may be convexly provided with a stator connecting portion 1237, one end of the stator connecting portion 1237, which is away from the mounting body 123, is provided with a fixing hole 12371, the fixing hole 12371 is communicated with the first accommodating space 1231, the stator teeth 132 are inserted into the fixing hole 12371, and the stator coil 133 is wound around the stator connecting portion 1237, so that the stator teeth 132 can be directly mounted after the winding of the stator coil 133 is completed, and the assembly is convenient.
In the present embodiment, the number of the stator teeth 132, the stator coil 133, and the stator connecting portions 1237 is two, and the two stator connecting portions 1237 are symmetrically provided on the outer surface of the mounting body 123.
Further, the stator teeth 132 may include a tooth portion 1321 and a yoke portion 1322, wherein the yoke portion 1322 is disposed in a U shape, the tooth portion 1321 is disposed through the fixing hole 12371, and the tooth portion 1321 is connected to a middle portion of the yoke portion 1322, wherein the middle portion is a position corresponding to a middle portion of three equal portions when the corresponding object is divided into three equal portions in the length direction thereof. When the tooth 1321 is inserted into the fixing hole 12371, both end portions of the yoke 1322 of one side of the mounting body 123 are respectively brought into contact with both end portions of the yoke 1322 of the other side of the mounting body 123, so that the torque of the motor assembly 10 is increased. The yoke 1322 and the teeth 1321 may be made of a magnetically permeable material, such as iron, nickel cobalt, alloys thereof, and the like. Note that the yoke 1322 and the tooth 1321 may be integrally formed.
The stator connecting portion 1237 may further include a stator fixing portion 1239 that is protruded from the stator connecting portion 1237, the stator fixing portion 1239 may have an arc-shaped plate shape and may be engaged with the yoke 1322, the fixing hole 12371 may penetrate the stator fixing portion 1239, a gap may be provided between the stator fixing portion 1239 and the mounting body 123, and the stator coil 133 may be positioned in the gap to separate the stator coil 133 and the yoke 1322.
Referring to fig. 5, 9 and 10, fig. 9 is a schematic structural diagram of the motor assembly 10 according to an embodiment of the present invention when assembled. Fig. 10 is a schematic cross-sectional view taken along line a-a in fig. 9.
The mounting bracket 12 may further include a sealing element 125, the sealing element 125 is sleeved on the output end 12317, the sealing element 125 is further fastened to the output end 12317, and the rotation shaft 1312 of the rotor 131 can partially extend out of the first accommodating space 1231 through the output opening 12315 and pass through the sealing element 125 to be connected to the brush head 20 to seal the first accommodating space 1231, so as to prevent impurities such as water from entering the first accommodating space 1231 through the output opening 12315.
It should be noted that, many connecting through holes 12316 may also be disposed on the output end 12317, and many connecting through holes 12316 extend to the setting of the output opening 12315, and the material of the output end 12317 is plastic and the like, and has elastic material, a clamping block 1238 may further be disposed on the outer side surface of the mounting main body 123, and the clamping block 1238 is located at the output end 12317, and a clamping interface 1252 may be disposed on the sealing member 125, and when the sealing member 125 is sleeved on the output end 12317, the clamping block 1238 is clamped in the clamping interface 1252 to clamp the sealing member 125 and the output end 12317, and further, by disposing many connecting through holes 12316, the aperture of the output end 12317 is elastically deformed and reduced, so that the sealing member 125 is clamped in the output end 12317.
In addition, the sealing element 125 may include a sealing portion 1251 and a sealing connection portion 1253, the clamping interface 1252 is located at the sealing portion 1251, the output end 12317 is sleeved with the sealing connection portion 1253, the sealing portion 1251 is made of soft material such as rubber and is sleeved outside the sealing connection portion 1253, and meanwhile, the rotating shaft 1312 is sleeved with the sealing portion 1251 to seal the first accommodating space 1231.
The embodiment of the utility model provides a motor assembly 10's theory of operation is:
the driving mechanism 13 includes a rotor 131, stator teeth 132 and a stator coil 133, and the mounting bracket 12 is configured to be connected to the handle 30 of the electric toothbrush 100, wherein the mounting bracket 12 includes a mounting cover 121 and a mounting body 123, a first accommodating space 1231 and a first mounting opening 12312 are provided on the mounting body 123, the first accommodating space 1231 is communicated with the first mounting opening 12312, the mounting cover 121 is covered on the first mounting opening 12312 and clamps the rotor 131 in the first accommodating space 1231 together with the mounting body 123, the rotor 131 can rotate relative to the mounting body 123, and the rotor 131 is configured to be in transmission connection with the brush head 20 of the electric toothbrush 100. The stator coil 133 is wound on the outer side surface of the mounting body 123, and the stator teeth 132 are connected to the mounting body 123, penetrate through the stator coil 133, and correspond to the rotor 131, so as to drive the rotor 131 to swing. In this way, the rotor 131 and the stator are directly installed by the installation body 123, so that a bracket for separately installing the rotor 131, the stator coil 133 and the stator teeth 132 is omitted, the volume of the motor assembly 10 is reduced, and a user can conveniently hold the brush holder 30, and the installation manner of jointly clamping the rotor 131 by the installation cover 121 and the installation body 123 makes the assembly of the rotor 131 more flexible and convenient.
In summary, the following steps:
an embodiment of the utility model provides a motor assembly 10, it has the less characteristics of whole volume.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that the features in the above embodiments may be combined with each other without conflict, and various modifications and variations of the present invention are possible. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The present embodiments are to be considered as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A motor assembly is characterized by comprising a mounting bracket and a driving mechanism, wherein the driving mechanism comprises a rotor, stator teeth and a stator coil;
the mounting bracket is used for being connected into a brush handle of the electric toothbrush, the mounting bracket comprises a mounting cover body and a mounting main body, a first accommodating space and a first mounting opening which are communicated with each other are arranged on the mounting main body, the mounting cover body is covered on the first mounting opening and clamps the rotor in the first accommodating space together with the mounting main body, and the rotor can rotate relative to the mounting main body and is used for being in transmission connection with a brush head of the electric toothbrush;
the stator coil is wound on the outer side surface of the mounting main body, and the stator teeth are connected to the mounting main body, penetrate through the stator coil and correspond to the rotor.
2. The motor assembly as claimed in claim 1, wherein the mounting body is in a shape of a bar, and the first mounting opening is located at a side surface of the mounting body and is capable of allowing the rotor to pass through, so that the rotor can be installed into the first accommodating space through the first mounting opening.
3. The motor assembly according to claim 1, wherein one end of the mounting cover body is a clamping end, the clamping end is clamped with the edge of the first mounting opening, and one end of the mounting cover body, which is far away from the clamping end, is detachably connected with the edge of the first mounting opening so as to be detachably connected with the first mounting opening.
4. The motor assembly according to claim 3, wherein the clamping end is used for clamping the rotor together with the mounting body, the end face of the clamping end is a clamping end face, a first clamping protrusion is arranged on the clamping end face in a protruding mode, and a first clamping portion is arranged on the first clamping protrusion in a protruding mode;
the intercommunication is seted up at first installation open-ended border the joint breach of first accommodation space, first joint arch is located the joint breach, just first joint portion is located in the first accommodation space to support hold in the wall of first accommodation space, with detachably joint the exposed core in the installation main part.
5. The motor assembly as claimed in claim 4, wherein a clamping gap is left between the first clamping portion and the clamping end face;
the wall surface of the first accommodating space is convexly provided with a first clamping convex block, the first clamping convex block is positioned in the clamping interval and is respectively abutted to the first clamping part and/or the clamping end surface.
6. The motor assembly according to any one of claims 1 to 5, wherein a stator connecting portion is convexly disposed on an outer side surface of the mounting body, a fixing hole is disposed on an end of the stator connecting portion away from the mounting body, and the fixing hole is communicated with the first accommodating space;
the stator coil is wound on the stator connecting part, and the stator teeth are arranged in the fixing holes in a penetrating mode.
7. The electric machine assembly according to claim 6, wherein the number of the stator teeth, the stator coils and the stator connecting parts is two, and the two stator connecting parts are symmetrically arranged on the outer side surface of the mounting main body;
the stator tooth includes tooth portion and yoke portion, yoke portion is the setting of U type, the tooth portion wear to locate in the fixed orifices, and with the middle part of yoke portion is connected, installation main part one side two tip of yoke portion respectively with the installation main part opposite side two tip of yoke portion meet.
8. The motor assembly according to any one of claims 1 to 5, wherein one end of the mounting body is an output end, the output end is provided with an output opening, the mounting bracket further comprises a sealing member, and the sealing member is sleeved on the output end and is clamped on the output end;
the rotor can partially extend out of the first accommodating space from the output opening and penetrate through the sealing piece to be connected with the brush head.
9. The electric motor assembly as set forth in any one of claims 1-5, further comprising a power source electrically connected to said stator coil;
the mounting main body is further provided with a second accommodating space and a second mounting opening which are communicated with each other, the second mounting opening is located on the side face of the mounting main body and can allow the power supply to pass through, and the second accommodating space is used for accommodating the power supply.
10. An electric toothbrush comprising a head, a handle and a motor assembly as claimed in any one of claims 1 to 9;
the mounting bracket is connected in a brush handle of the electric toothbrush, and the rotor is in transmission connection with a brush head of the electric toothbrush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922424666.0U CN210839296U (en) | 2019-12-26 | 2019-12-26 | Motor assembly and electric toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922424666.0U CN210839296U (en) | 2019-12-26 | 2019-12-26 | Motor assembly and electric toothbrush |
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| Publication Number | Publication Date |
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| CN210839296U true CN210839296U (en) | 2020-06-23 |
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| CN201922424666.0U Active CN210839296U (en) | 2019-12-26 | 2019-12-26 | Motor assembly and electric toothbrush |
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| CN (1) | CN210839296U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021128702A1 (en) * | 2019-12-26 | 2021-07-01 | 广州星际悦动股份有限公司 | Electric motor assembly and electric toothbrush |
-
2019
- 2019-12-26 CN CN201922424666.0U patent/CN210839296U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021128702A1 (en) * | 2019-12-26 | 2021-07-01 | 广州星际悦动股份有限公司 | Electric motor assembly and electric toothbrush |
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Address after: Room 2001, 2002, 2003, 2004, 2005, 239 Tianhe North Road, Tianhe District, Guangzhou, Guangdong 510000 Patentee after: Guangzhou Xingxing Yuedong Co.,Ltd. Address before: 718, No.9, Linhe West Road, Tianhe District, Guangzhou, Guangdong 510000:C) (not for factory use) (office use only) No. 718, No. 9, Linhe West Road, Tianhe District, Guangzhou, Guangdong 510000 (Location: C) (not for factory use) (office use only) Patentee before: Guangzhou haoxingwan Technology Co.,Ltd. |
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