CN111035467B - Electric toothbrush - Google Patents
Electric toothbrush Download PDFInfo
- Publication number
- CN111035467B CN111035467B CN202010010961.6A CN202010010961A CN111035467B CN 111035467 B CN111035467 B CN 111035467B CN 202010010961 A CN202010010961 A CN 202010010961A CN 111035467 B CN111035467 B CN 111035467B
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- Prior art keywords
- brush
- vibration
- handle
- damping
- brush handle
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- 238000013016 damping Methods 0.000 claims abstract description 51
- 210000004209 hair Anatomy 0.000 claims abstract description 7
- 230000035939 shock Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 238000004140 cleaning Methods 0.000 abstract description 7
- 230000001680 brushing effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000862 numbness Toxicity 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
- A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/225—Handles or details thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Brushes (AREA)
Abstract
The embodiment of the invention provides an electric toothbrush, which comprises a brush handle and a brush head connected with the brush handle, wherein brush hairs are arranged on the brush head, a control board is arranged in the brush handle, and the electric toothbrush further comprises: the miniature motor is arranged in the brush handle through the matching of the damping component or the damping component and the hard connecting piece, wherein the contact area between the hard connecting piece and the inner cavity wall of the brush handle is smaller than the preset contact area so as to prevent vibration of the miniature motor from being transmitted to the brush handle; and the first end of the vibration conducting shaft is fixedly connected into the brush head, and the second end of the vibration conducting shaft stretches into the brush handle to be indirectly connected with the micro motor so as to conduct vibration of the micro motor to the brush head. The electric toothbrush provided by the embodiment of the invention can prevent vibration of the micro motor from being transmitted to the brush handle; meanwhile, the vibration of the micro motor is effectively transmitted to the brush head through the vibration transmission shaft, so that the vibration strength of the brush head is improved, and the cleaning effect of brushing teeth is enhanced; meanwhile, the brush head can be made finer, so that the toothbrush has more attractive appearance and is more convenient to use.
Description
Technical Field
The invention belongs to the technical field of small household appliances, and particularly relates to an electric toothbrush.
Background
The electric toothbrush with the hollow cup motor is provided with two mounting and fixing structures, one is directly mounted inside the position, close to the brush head, of the top of the toothbrush handle, the other is mounted inside the brush head, the two mounting and fixing modes are insufficient, the first mounting and fixing mode is adopted, a large part of vibration generated by the hollow cup motor is transmitted to the handle, the user experience feel that hands are shocked, but the vibration strength of the brush head is weak, and the cleaning effect is poor. In the second mounting and fixing mode, as the hollow cup motor is arranged in the brush head part, the brush head of the brush head part has thick appearance and is not attractive in appearance; the hollow cup motor drives the brush head to vibrate at high frequency in the use process, so that the sealing ring at the joint of the brush head and the brush handle is sealed and leaked, and each part in the brush head and the handle is easy to erode.
The Chinese patent with the publication number CN 209464114U discloses an electric toothbrush which comprises a toothbrush head body, a toothbrush handle, a transmission rod with a cavity and a miniature motor, wherein the miniature motor is arranged in the cavity of the transmission rod, and the transmission rod is arranged in the toothbrush head body, so that the toothbrush head body has larger external dimension due to the arrangement of the miniature motor in the toothbrush head body, the use is inconvenient, and a rubber ring arranged between the toothbrush head body and the toothbrush handle is easy to leak, thereby affecting an electric control assembly in the toothbrush handle and having potential safety hazards.
Disclosure of Invention
In view of the foregoing problems of the prior art, it is an object of embodiments of the present invention to provide an electric toothbrush that guides the vibration of a micro-motor to a brush head while blocking the transmission of the vibration to a handle.
The embodiment of the invention provides an electric toothbrush, which comprises a brush handle and a brush head connected with the brush handle, wherein one end of the brush head, which is far away from the brush handle, is provided with brush hairs, a control board which is arranged on an inner core bracket is arranged in the brush handle, and the electric toothbrush further comprises:
The miniature motor is arranged in the brush handle through the damping component or the matching of the damping component and the hard connecting piece, wherein the contact area of the hard connecting piece and the inner cavity wall of the brush handle is smaller than the preset contact area so as to prevent vibration of the miniature motor from being transmitted to the brush handle;
and the first end of the vibration conduction shaft is connected into the brush head, and the second end of the vibration conduction shaft stretches into the brush handle to be indirectly connected with the micro motor so as to conduct vibration of the micro motor to the brush head.
The electric toothbrush provided by the embodiment of the invention can prevent the vibration generated by the micro motor from being transmitted to the brush handle, so that the vibration sense of the hand holding the brush handle is reduced, and the comfort of a user is improved; meanwhile, vibration of the micro motor is effectively transmitted to the brush head through the vibration transmission shaft, so that the vibration intensity of the brush head provided with the brush hair is improved, and the cleaning effect is enhanced. And the miniature motor is arranged in the brush handle, so that the brush head is not thick, the appearance is attractive, and the use is convenient.
In some embodiments, the electric toothbrush further comprises a mounting part arranged in one end of the brush handle connected with the brush head and forming an annular space with the inner cavity wall of the brush handle, and the damping component comprises a first damping part arranged in the annular space and used for elastically connecting the brush handle and the mounting part;
The two ends of the mounting part along the length direction of the brush handle are respectively provided with a first mounting hole and a second mounting hole, the miniature motor part is arranged in the first mounting hole and is tightly matched with the hole wall of the first mounting hole; the second end of the vibration conducting shaft is installed in the second installation hole and is in tight fit with the hole wall of the second installation hole.
The setting of installation component is convenient for make micro motor be to hang and establishes the form, and ensures micro motor installation's stability to as few as possible with vibrations conduction for the brush holder.
In some embodiments, the first damping member includes a damping ring and at least two damping arms connected to the damping ring, the damping ring is sleeved on the mounting member and is attached to the inner cavity wall of the brush handle, and the damping arms are clamped between the outer wall of the mounting member and the inner cavity wall of the brush handle. The structural design is ingenious, and the first shock-absorbing member not only plays the roles of shock insulation and support, but also plays the role of sealing.
In some embodiments, a bracket is arranged on the inner core bracket, and the tail part of the micro motor is arranged in the bracket;
the damping assembly further comprises a second damping piece arranged between the tail part of the miniature motor and the bracket, and the second damping piece covers at least part of the side wall of the tail part of the miniature motor. Vibration generated by the micro motor is blocked by the second damping piece and transmitted to a control board on the inner core support and a brush handle which is in direct contact with and connected with the inner core support through the inner core support, so that the use comfort of the electric toothbrush is improved, and electronic components in the brush handle are protected.
In some embodiments, the hard connector is a plurality of hard sheets; the plurality of hard sheets are arranged around the same periphery of the mounting part, one end of each hard sheet is connected with the inner cavity wall of the brush handle, and the other end of each hard sheet is connected with the outer wall of the mounting part. The hard sheet has simple structure and convenient processing, can ensure smaller contact area and can ensure that the installation part is stably arranged in the brush handle.
In some embodiments, the handle, the mounting member and the rigid sheet are integrally formed and are all made of rigid plastic. The injection molding process is convenient and the process is simplified.
In some embodiments, the vibration conducting shaft is provided with an annular groove at a section in the brush head, and the brush head is provided with an annular protrusion for being embedded in the annular groove so as to limit the brush head from axially moving on the vibration conducting shaft, thereby enhancing the stability of connection.
In some embodiments, a section of the shock-conducting shaft within the brush head is at least partially a flat shaft to limit rotation of the brush head on the shock-conducting shaft.
In some embodiments, a through hole for communicating the first mounting hole and the second mounting hole is arranged between the first mounting hole and the second mounting hole, and the aperture of the through hole is smaller than that of the first mounting hole and that of the second mounting hole. The arrangement of the through holes is convenient for exhausting during installation and utilizes assembly.
In some embodiments, the first shock absorbing member and the button on the brush holder are integrally formed, and both are made of soft rubber; and/or the vibration conducting shaft is made of hard materials. The integrated molding can simplify the structure and is convenient for one-time injection molding; the hard metal is convenient to obtain materials, and can ensure effective conduction of vibration.
Compared with the prior art, the electric toothbrush provided by the embodiment of the invention can prevent vibration of the micro motor from being transmitted to the brush handle; the vibration of the miniature motor can be effectively transmitted to the brush head through the vibration transmission shaft, so that the vibration intensity of the brush head is improved, and the cleaning effect is enhanced; the brush head can be made to be tiny, so that the toothbrush has more attractive appearance and is more convenient to use.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
An overview of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all of the features of the technology disclosed.
Drawings
In the drawings, which are not necessarily drawn to scale, like numerals may describe similar components in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar components. The accompanying drawings illustrate various embodiments by way of example in general and not by way of limitation, and together with the description and claims serve to explain the inventive embodiments. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive of the present apparatus or method.
Fig. 1 is a schematic view showing a structure of an electric toothbrush according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view taken along A-A in fig. 1.
Fig. 3 is a sectional view taken along the direction B-B in fig. 2.
Fig. 4 is an exploded view of an electric toothbrush according to an embodiment of the present invention.
Fig. 5 is a schematic view showing an internal structure of an electric toothbrush according to an embodiment of the present invention.
Fig. 6 is a schematic view showing the structure of a handle of an electric toothbrush according to an embodiment of the present invention.
Fig. 7 is a cross-sectional view taken along the direction C-C in fig. 6.
Fig. 8 is a sectional view taken along the direction D-D in fig. 7.
Fig. 9 is a perspective cross-sectional view of a handle of an electric toothbrush in accordance with an embodiment of the present invention.
Fig. 10 is a schematic perspective view of a first shock absorbing member and a button in an electric toothbrush according to an embodiment of the present invention.
Fig. 11 is a schematic perspective view of a second shock absorbing member in a handle of an electric toothbrush according to an embodiment of the present invention.
Fig. 12 is a front view of a second dampening device in the handle of an electric toothbrush in accordance with an embodiment of the present invention.
Reference numerals:
1-a brush head; 2-brushing; 3-a brush handle; 4-a cavity; 5-control panel; 6-an inner core support; 7-brackets; 8-a micro motor; 9-vibrating the conductive shaft; 10-an annular groove; 11-a flat shaft; 12-mounting a component; 13-annular space; 14-a first shock absorber; 15-a damping ring; 16-a shock absorbing arm; 17-a second shock absorber; 18-a bottom pad; 19-side pads; 20-gap; 21-a hard connector; 22-through holes; 23-buttons; 24-negative electrode spring; 25-an anode shrapnel; 26-cell; 27-tail cap.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
In order to keep the following description of the embodiments of the present invention clear and concise, the detailed description of known functions and known components thereof have been omitted.
As shown in fig. 1 to 9, an embodiment of the present invention provides an electric toothbrush, which comprises a brush holder 3 and a brush head 1 connected with the brush holder 3, wherein one end of the brush head 1 far away from the brush holder 3 is provided with brush hair 2, the brush holder 3 is internally provided with a cavity 4, the cavity 4 is communicated with one end of the brush holder 3 for being connected with the brush head 1, and the cavity 4 is internally provided with an inner core bracket 6 and a control board 5 arranged on the inner core bracket 6; the electric toothbrush further comprises a micro motor 8 and a vibration conducting shaft 9, wherein the micro motor 8 is arranged in the brush handle 3 through a damping component or the cooperation of the damping component and a hard connecting piece 21, and the contact area between the hard connecting piece 21 and the inner cavity wall of the brush handle 3 is smaller than the preset contact area so as to prevent the vibration of the micro motor 8 from being transmitted to the brush handle 3; the first end of the vibration conducting shaft 9 is used for extending into the brush head 1 so that the brush head 1 is connected to the brush handle 3 through the vibration conducting shaft 9, and the second end of the vibration conducting shaft 9 extends into the brush handle 3 and is indirectly and fixedly connected with the micro motor 8 so as to conduct vibration of the micro motor 8 to the brush head 1.
According to the embodiment of the invention, the miniature motor 8 is arranged in the accommodating cavity 4 of the brush handle 3 through the damping component or the matching of the damping component and the hard connecting piece 21, so that the vibration generated by the miniature motor 8 is prevented from being transmitted to the brush handle 3 as much as possible, the vibration feeling of a hand holding the brush handle 3 is reduced, and the comfort of a user is improved; meanwhile, vibration of the micro motor 8 is effectively transmitted to the brush head 1 through the vibration transmission shaft 9, so that the vibration strength of the brush head 1 provided with the brush hair 2 is improved, and the cleaning effect is enhanced. And the micro motor 8 is arranged in the brush handle 3, so that the brush head 1 is not thick, the appearance is beautiful, and the use is convenient.
It should be noted that, one end of the brush head 1 where the brush hair 2 is arranged is defined as a front end, and one end of the brush head 1 connected with the brush handle 3 is a rear end; one end of the brush handle 3 connected with the brush head 1 is a front end, the other end of the brush handle 3 is a rear end, and the front and rear positions of other parts are consistent with the front and rear positions of the brush head 1 and the brush handle 3.
In order to stably mount the micro-motor 8 in the brush holder 3 and to transmit as little vibration as possible to the brush holder 3, in some embodiments, as shown in fig. 2 to 5 and 7 to 9, the electric toothbrush further comprises a mounting member 12, the mounting member 12 being disposed in the cavity 4 and being adjacent to the brush head 1, the mounting member 12 forming an annular space 13 with a cavity wall of the cavity 4 (the cavity wall of the cavity 4 is the cavity wall of the brush holder 3), the vibration absorbing assembly comprising a first vibration absorbing member 14 disposed in the annular space 13 for elastically connecting the brush holder 3 and the mounting member 12; the mounting component 12 is provided with a first mounting hole and a second mounting hole at two ends along the length direction of the brush holder 3 respectively, the micro motor 8 is partially arranged in the first mounting hole, in this embodiment, the front end part of the micro motor 8 is arranged in the first mounting hole, and the outer wall of the micro motor 8 is tightly matched with the hole wall of the first mounting hole; the micro motor 8 in the embodiment is cylindrical, and the front end of the micro motor is provided with an eccentric wheel for generating vibration; the first mounting hole and the second mounting hole are cylindrical holes; the second end (i.e., the rear end) of the vibration conducting shaft 9 is installed in the second installation hole, and the outer wall of the vibration conducting shaft 9 is tightly matched with the hole wall of the second installation hole, so that the vibration generated by the micro motor 8 is conducted to the brush head 1 through the installation component 12 and the vibration conducting shaft 9.
In some embodiments, as shown in fig. 10 and in combination with fig. 2, 3, 7 and 9, the first damping member 14 includes a damping ring 15 and at least two damping arms 16 connected to the damping ring 15, where the damping ring 15 is sleeved on the mounting member 12 and is attached to the inner cavity wall of the handle 3, and the damping arms 16 are sandwiched between the outer wall of the mounting member 12 and the inner cavity wall of the handle 3. In the embodiment, the shape of the mounting part 12 is cylindrical, and the front end of the mounting part protrudes out of the front end of the brush handle 3 so as to extend into the brush head 1 when being connected with the brush head 1, thereby enhancing the connection strength; the damping ring 15 is sleeved on the mounting part 12 and is positioned at the port of the containing cavity 4 of the brush holder 3 and is flush with the front end surface of the brush holder 3, the damping ring 15 has the effects of supporting and isolating vibration and simultaneously has the function of a sealing ring to prevent external dust or water and the like from entering the containing cavity 4 of the brush holder 3; the inner and outer surfaces of the damping arm 16 are cambered surfaces to respectively fit with the outer surface of the mounting part 12 and the cambered surface of the cavity wall of the accommodating cavity 4. The length and number of the shock absorbing arms 16 are not limited, and in order to enhance the stability of the mounting member 12 and reduce the cost as much as possible, in this embodiment, two shock absorbing arms 16 are provided, and the tail ends of the shock absorbing arms 16 extend to the tail ends close to the mounting member 12.
In some embodiments, as shown in fig. 4 and 5, the inner core support 6 is provided with a bracket 7, and the tail part of the micro motor 8 is arranged in the bracket 7; the damping assembly further comprises a second damping member 17 arranged between the tail of the micro-motor 8 and the bracket 7, the second damping member 17 covering at least part of the side wall of the tail of the micro-motor 8. As shown in fig. 11 and 12, and in combination with fig. 2 to 5, the second damper 17 includes a bottom pad 18 for blocking the direct connection of the micro motor 8 and the bracket 7, and a side pad 19 extending from the bottom pad 18 toward the body of the micro motor 8, the inner side of the side pad 19 being fitted to the body of the micro motor 8, the outer side of the side pad 19 being fitted to the bracket 7; the second shock absorbing member 17 blocks the vibration generated from the micro motor 8 from being transmitted to the control board 5 on the inner core support 6 and the brush handle 3 directly contacting and connected with the inner core support 6 through the inner core support 6, thereby improving the use comfort of the electric toothbrush and protecting the electronic components in the brush handle 3.
As shown in fig. 11, the side pads 19 in this embodiment are two pairs that are disposed correspondingly, and a gap 20 is formed between each pair, so that the stability of assembling the micro-motor 8 is ensured, and other requirements for installation, such as circuit wiring, can be satisfied.
The electric toothbrush of the embodiment of the invention enables the micro motor 8 to be arranged in the brush handle 3 in a similar suspending way under the cooperation of the first damping component, the second damping component and the hard connecting piece 21 so as to be isolated from the brush handle 3, and prevents the vibration generated by the micro motor from being transmitted to the brush handle 3, so that the phenomenon of overlarge vibration or even hand numbness of a user can not occur in the use process of the electric toothbrush, and the use experience is better. The electric toothbrush has the advantages of ingenious conception, reasonable structure, strong stability, convenient processing and manufacturing and convenient popularization and application.
It should be understood that the contact area between the hard connecting member 21 and the cavity wall is smaller than the predetermined contact area, which means that the predetermined contact area should be in contact with a smaller area, so as to make the vibration generated by the micro-motor 8 be transmitted to the brush handle 3 as less as possible, and prevent the vibration generated by the micro-motor from being lost, for example, the contact mode of the hard connecting member 21 and the cavity wall is point contact or line contact.
In some embodiments, as shown in fig. 9, the hard connector 21 is a hard sheet, the number of which may be one or more, and the contact of the sheet-like hard connector 21 with the cavity wall is similar to a line contact; when the number of hard sheets is plural, the plural hard sheets are disposed around the same periphery of the mounting member 12, and one end of the hard sheet is connected to the inner cavity wall of the handle 3, and the other end is connected to the outer wall of the mounting member 12. This structure ensures both the connection of the mounting member 12 with the brush handle 3 and the small contact area of the connection, which prevents the vibration of the micro motor 8 from being transmitted to the brush handle 3.
Further, for convenience in processing, the brush holder 3, the mounting member 12 and the hard sheet are integrally formed, and are made of hard plastic. The present embodiment shows two hard sheets uniformly distributed on the mounting member 12.
In some embodiments, as shown in fig. 2 to 9, an annular groove 10 is formed on a section of the vibration conducting shaft 9, which is located in the brush head 1, and an annular protrusion for being embedded in the annular groove 10 is formed on the brush head 1, so as to prevent the brush head 1 from moving in the axial direction of the vibration conducting shaft 9 when the brush head 1 is mounted on the brush handle 3, and ensure the stability of connection between the brush head 1 and the vibration conducting shaft 9.
Further, with continued reference to fig. 5, a section of the vibration conducting shaft 9 located in the brush head 1 is at least partially a flat shaft 11 to limit the brush head 1 to rotate on the vibration conducting shaft 9, so that the brush head 1 is stably limited on the vibration conducting shaft 9, vibration of the micro motor 8 is effectively transmitted to the brush head 1, vibration strength of the brush head 1 is improved, and tooth cleaning effect is improved.
The vibration transmission shaft 9 is not limited to a material that can effectively transmit the vibration of the micro motor 8, and it is preferable to use a hard material such as a stainless steel material or a hard plastic material for securing the vibration transmission effect, and a hard metal alloy material may be used.
In some embodiments, as shown in fig. 3, a through hole 22 for communicating the first mounting hole and the second mounting hole is provided between the first mounting hole and the second mounting hole, and the hole diameter of the through hole 22 is smaller than the hole diameter of the first mounting hole and the hole diameter of the second mounting hole. The through hole 22 can be used for exhausting air during installation, so that the installation is convenient and smooth.
In some embodiments, for convenience in manufacturing, the damping arm 16 of the first damping member 14 and the button 23 on the brush holder 3 are integrally formed through a connecting component, and both materials are soft rubber, so that the parts can be conveniently molded at one time, and the purpose of saving parts is achieved.
With continued reference to fig. 2 to 5, the brush holder 3 is further provided therein with components for ensuring normal use of the electric toothbrush, such as a negative spring 24, a positive spring 25, a battery 26, etc., and for mounting and dismounting the battery 26, the tail end of the brush holder 3 is provided with a detachable tail cover 27, and the tail ends of the tail cover 27 and the brush holder 3 can be detachably connected by means of connection such as screw threads or buckles.
According to the electric toothbrush disclosed by the embodiment of the invention, the miniature motor 8 is blocked from the brush handle 3 through the damping component, meanwhile, the vibration generated by the miniature motor 8 is blocked from being conducted to the brush handle 3 by means of the vibration conducting shaft 9, and the vibration generated by the miniature motor 8 is transmitted to the brush head 1 through the vibration conducting shaft 9, so that the vibration of the miniature motor 8 is effectively utilized, the vibration of the hands of a user is reduced, the vibration of the brush head 1 is stronger, and the tooth cleaning effect is improved.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more aspects thereof) may be used in combination with each other, and it is contemplated that the embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
Claims (7)
1. The utility model provides an electric toothbrush, includes the brush holder and with the brush head that the brush holder is connected, the brush head is kept away from the one end of brush holder is equipped with the brush hair, be equipped with the control panel of installing on the inner core support in the brush holder, its characterized in that, electric toothbrush still includes:
The miniature motor is arranged in the brush handle through the damping component or the matching of the damping component and the hard connecting piece, wherein the contact area of the hard connecting piece and the inner cavity wall of the brush handle is smaller than the preset contact area so as to prevent vibration of the miniature motor from being transmitted to the brush handle;
the first end of the vibration conducting shaft is connected into the brush head, and the second end of the vibration conducting shaft stretches into the brush handle and is indirectly connected with the micro motor so as to conduct vibration of the micro motor to the brush head;
The electric toothbrush further comprises a mounting part which is arranged in one end of the brush handle connected with the brush head and forms an annular space with the inner cavity wall of the brush handle, and the damping component comprises a first damping part which is arranged in the annular space and is used for elastically connecting the brush handle and the mounting part;
the two ends of the mounting part along the length direction of the brush handle are respectively provided with a first mounting hole and a second mounting hole, the miniature motor part is arranged in the first mounting hole and is tightly matched with the hole wall of the first mounting hole; the second end of the vibration conducting shaft is arranged in the second mounting hole and is in tight fit with the hole wall of the second mounting hole;
The first damping piece comprises a damping ring and at least two damping arms connected to the damping ring, the damping ring is sleeved on the mounting part and is attached to the inner cavity wall of the brush handle, and the damping arms are clamped between the outer wall of the mounting part and the inner cavity wall of the brush handle;
the inner core support is provided with a bracket, and the tail part of the miniature motor is arranged in the bracket;
the damping assembly further comprises a second damping piece arranged between the tail part of the miniature motor and the bracket, and the second damping piece covers at least part of the side wall of the tail part of the miniature motor.
2. The powered toothbrush as defined in claim 1, wherein the rigid connection is a rigid sheet; the number of the hard sheets is one or more, when the number of the hard sheets is a plurality, the hard sheets are arranged around the same periphery of the mounting part, one end of each hard sheet is connected with the inner cavity wall of the brush handle, and the other end of each hard sheet is connected with the outer wall of the mounting part.
3. The electric toothbrush according to claim 2, wherein the handle, the mounting member and the rigid sheet are integrally formed and are all of rigid plastic.
4. The electric toothbrush according to claim 1 wherein said shock-conducting shaft has an annular groove in a section thereof located in said head, said head having an annular projection for engaging said annular groove to limit axial movement of said head on said shock-conducting shaft.
5. The powered toothbrush as defined in claim 1, wherein a section of the shock-conducting shaft within the brush head is at least partially a flat shaft to limit rotation of the brush head on the shock-conducting shaft.
6. The electric toothbrush according to claim 1, wherein a through hole for communicating the first mounting hole and the second mounting hole is provided between the first mounting hole and the second mounting hole, and the hole diameters of the through holes are smaller than those of the first mounting hole and the second mounting hole.
7. The electric toothbrush according to claim 1, wherein the first shock absorbing member and the button on the handle are integrally formed, and both are made of soft rubber; and/or
The vibration conducting shaft is made of hard materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010010961.6A CN111035467B (en) | 2020-01-06 | 2020-01-06 | Electric toothbrush |
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| CN202010010961.6A CN111035467B (en) | 2020-01-06 | 2020-01-06 | Electric toothbrush |
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| CN111035467A CN111035467A (en) | 2020-04-21 |
| CN111035467B true CN111035467B (en) | 2024-08-30 |
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| CN112472344A (en) * | 2020-12-17 | 2021-03-12 | 中山智选科技有限公司 | Electric tooth brush |
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| CN211381918U (en) * | 2020-01-06 | 2020-09-01 | 佛山市顺德区庆菱压铸制品有限公司 | Electric tooth brush |
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| WO2004093719A2 (en) * | 2003-04-23 | 2004-11-04 | The Procter & Gamble Company | Electric toothbrushes |
| US7322066B2 (en) * | 2003-07-16 | 2008-01-29 | Church & Dwight Co., Inc. | Electric toothbrushes having movable, intermittently movable, and fixed bristles |
| JP2005124878A (en) * | 2003-10-24 | 2005-05-19 | Isamu Miura | Electric toothbrush |
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