CN111725936B - Motor assembly and electric toothbrush - Google Patents
Motor assembly and electric toothbrush Download PDFInfo
- Publication number
- CN111725936B CN111725936B CN202010368118.5A CN202010368118A CN111725936B CN 111725936 B CN111725936 B CN 111725936B CN 202010368118 A CN202010368118 A CN 202010368118A CN 111725936 B CN111725936 B CN 111725936B
- Authority
- CN
- China
- Prior art keywords
- motor
- clamping
- bracket
- pressure switch
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (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 invention discloses a motor assembly and an electric toothbrush, and relates to the technical field of articles for daily use. The bracket component is used for being matched with a motor and comprises a first elastic pad, a second elastic pad, a bracket main body and a cover plate. The apron just forms the chamber that holds that is used for the holding motor with support main part lock, and first bullet pad sets up in the first end that holds the chamber and is used for cooperating with the output of motor, and the second bullet pad sets up in the second end that holds the chamber and is used for cooperating with the tail end of motor. This bracket component simple structure, under the prerequisite that realizes that the extension orbit of motor axis and support main part forms the contained angle of predetermineeing, can conveniently assemble, and assembly back stable in structure, reliable, the cost is lower, is favorable to the product to be promoted.
Description
The present application is a divisional application entitled "a bracket assembly, motor assembly and electric toothbrush," filed as 201910360047.1, filed as 20190430.
Technical Field
The invention relates to the technical field of articles for daily use, in particular to a motor assembly and an electric toothbrush.
Background
The electric toothbrush makes the brush head generate high-frequency vibration through the quick rotation or vibration of the electric movement, instantly decomposes the toothpaste into fine foam and deeply cleans teeth gaps, in other words, the electric toothbrush utilizes the movement with high-speed vibration to drive the brush head to rotate or vibrate so as to achieve the effect of cleaning teeth.
For promoting electric toothbrush's user experience, can effectively contact back tooth, clear away the wisdom tooth and the back gum that are difficult to touch, the current market has promoted a toothbrush, forms between the axis of its handle and the axis of brush head and predetermines the angle, however, the product of this kind of similar structure at present, the structure is complicated, leads to the assembly inconvenient.
Disclosure of Invention
The invention aims to provide a motor assembly, wherein a bracket assembly in the motor assembly is used for being matched with a motor and then being installed in an electric toothbrush, and the motor assembly has a simple structure and is convenient to assemble.
The embodiment of the invention is realized by the following steps:
in view of the above objects, an embodiment of the present invention provides a motor assembly including a bracket assembly and a motor; the bracket component comprises a first elastic pad, a second elastic pad, a bracket main body and a cover plate; the cover plate is buckled with the support main body and forms a containing cavity for containing the motor, the first elastic cushion is arranged at the first end of the containing cavity and is used for being matched with the output end of the motor, and the second elastic cushion is arranged at the second end of the containing cavity and is used for being matched with the tail end of the motor;
the motor assembly further comprises a pressure switch; the pressure switch is arranged on the side wall of the output end of the motor; when the deflection motion of the motor exceeds a preset force value, the pressure switch touches a handle shell of the electric toothbrush, so that the pressure switch is triggered; the pressure switch transmits a signal with overlarge force to the PCB so that the PCB controls the swing frequency of a power output shaft of the motor or reduces the power-on time of the motor;
or the pressure switch is arranged inside the handle shell; when the deflection motion of the motor exceeds a preset force value, the pressure switch touches the motor, so that the pressure switch is triggered; the pressure switch transmits a signal with overlarge force to the PCB so that the PCB controls the swing frequency of a power output shaft of the motor or reduces the power-on time of the motor.
In addition, the bracket assembly provided by the embodiment of the invention can also have the following additional technical characteristics:
in an optional embodiment of the present invention, the bracket main body is provided with a first fastening structure and a second fastening structure, and the cover plate is provided with a first clamping portion and a second clamping portion;
the first elastic pad is arranged on the first buckle structure, the first clamping portion is clamped with the first buckle structure, the second elastic pad is arranged on the second buckle structure, and the second clamping portion is clamped with the second buckle structure.
In an optional embodiment of the present invention, the first fastening structure includes a front blocking portion, a fastening portion, and a positioning portion, an extending direction of the front blocking portion has an included angle with an extending track of the bracket main body, the fastening portion is located at a side of the front blocking portion close to the second fastening structure, the fastening portion and the front blocking portion form a fastening groove, and the positioning portion is located at a peripheral wall of the front blocking portion and corresponds to the fastening groove;
the first elastic cushion is provided with a clamping part and a stopping part, the clamping part is clamped with the clamping part in a matching mode, and the stopping part is clamped in the clamping groove and matched with the positioning part.
In an optional embodiment of the invention, the number of the clamping parts is two, the clamping parts are arranged on one side of the front blocking part, each clamping part comprises a lug and a spigot, a limiting space is formed between the oppositely arranged lugs, and a clamping gap is formed between each lug and the front blocking part;
the first bullet pad is protruding still to be equipped with the fixed part, and the fixed part is connected between block portion, and the spacing space is located to the fixed part card, and has the clearance with preceding fender portion between, first joint portion and lug cooperation and pass joint clearance and tang joint, block portion and tang cooperate.
In an optional embodiment of the present invention, a side of the second buckle structure close to the first buckle structure is provided with a first mating portion and a second mating portion, the first mating portion is located on the bottom wall of the bracket main body, and the second mating portion is located on the side wall of the bracket main body;
the second bullet pad is provided with first installation department and second installation department, and first installation department matches with first cooperation portion, and the second installation department matches with second cooperation portion.
In an optional embodiment of the invention, a buffer part is arranged on one side of the second elastic cushion close to the second buckle structure, and the buffer part is provided with a deformation groove.
In an optional embodiment of the present invention, the second fastening structure includes a guiding portion, the guiding portion is provided with a clamping groove, and the second fastening portion extends into the clamping groove and is fastened to the second fastening structure.
In an optional embodiment of the invention, the clamping groove comprises a first lead-in part and a second lead-in part, and a clamping ridge is arranged at the bottom end of the second lead-in part;
the second clamping portion comprises a clamping column and a limiting column, a clamping hook is arranged at the extending end of the clamping column, the clamping column is matched with the first leading-in portion, the clamping hook is clamped with the clamping edge, and the limiting column is matched with the second leading-in portion to be limited.
In an optional embodiment of the present invention, the output end of the motor is provided with a first engaging portion, the output shaft of the motor is rotatably embedded in the first engaging portion, the tail end of the motor is provided with a second engaging portion, the first elastic pad is disposed through the output shaft and engaged with the first engaging portion, and the second elastic pad is engaged with the second engaging portion.
The present invention also provides an electric toothbrush including a motor assembly.
In an alternative embodiment of the present invention, the electric toothbrush further includes a toothbrush head and a handle shell, the support assembly and the motor cooperate to form a motor assembly, the motor assembly is mounted in the handle shell, an extension track of the support body is the same as an extension track of the handle shell, and an output shaft of the motor is fixedly connected to the toothbrush head, so that an axial line of the toothbrush head and the extension track of the handle shell form a preset included angle.
The embodiment of the invention has the beneficial effects that: through the position cooperation relation of detaining between support main part and the apron, and the motor front and back end is provided with first bullet pad and second bullet pad, because first bullet pad and second bullet pad have elasticity, install in the support main part through the tight fit, can eliminate the angle interference between electric toothbrush's bracket component and the toothbrush handle center, be favorable to assembling smoothly to target in place, satisfy the axis of motor power output shaft and the toothbrush handle extension contained angle of predetermineeing between the orbit simultaneously. The bracket component has simple structure, convenient assembly, stability, reliability and lower cost, and is favorable for market promotion of products. In addition, when the brush head is stressed by more than a preset force value, namely the deflection motion of the motor exceeds the preset force value, the pressure switch transmits a signal with overlarge force to the PCB so as to control the swing frequency of a power output shaft of the motor or reduce the power-on time of the motor by the PCB, so that the friction force between internal components of the motor is reduced, the motor is effectively protected, and the service life of a product is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed 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 invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a bracket assembly provided in this embodiment 1;
FIG. 2 is an exploded view of the motor assembly;
FIG. 3 is a schematic view of the stent body of FIG. 2;
FIG. 4 is a cross-sectional view taken along the line C-C of FIG. 3;
FIG. 5 is an enlarged view of a portion of FIG. 2 at A;
FIG. 6 is a cross-sectional view taken along line D-D of FIG. 3;
FIG. 7 is an enlarged view of a portion of FIG. 2 at B;
FIG. 8 is an enlarged view of a portion of FIG. 3 at E;
FIG. 9 is a schematic view of the first elastic pad of FIG. 2 from a first perspective;
FIG. 10 is a schematic view of the first resilient pad from a second perspective;
FIG. 11 is a schematic view of the second spring washer of FIG. 2;
FIG. 12 is a schematic view of the cover plate of FIG. 2;
fig. 13 is a schematic structural diagram of a motor assembly provided in embodiment 2;
FIG. 14 is a schematic view of the motor of FIG. 13;
fig. 15 is a schematic structural view of the electric toothbrush provided in this embodiment 3.
Icon: 100-a bracket assembly; 10-a stent body; 11-a first snap feature; 111-a front stop; 112-a clamping part; 113-a lug; 114-a spigot; 115-clamping a groove; 116-a clamping gap; 117-a positioning section; 12-a second snap feature; 121-a first mating portion; 122-a second mating portion; 123-a guide installation part; 124-card slot; 125-a first lead-in; 126-a second lead-in; 127-karg; 13-a cover plate; 131-a first clamping part; 132-a buckle; 133-penetrating through holes; 135-a second snap-in part; 136-a clamp column; 137-limit column; 14-a containment chamber; 16-a first resilient pad; 161-a snap-fit portion; 162-a stop; 163-a fixed part; 18-a second spring pad; 181-a first mounting portion; 182-a second mounting portion; 183-buffer part; 184-deformation groove; 20-a motor assembly; 21-a motor; 215-an output shaft; 216-tail end; 213-first engaging portion; 217-a second snap-fit portion; 30-an electric toothbrush; 31-a toothbrush head; 32-handle shell; 33-pressure switch.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Fig. 1 is a schematic structural view of a bracket assembly 100 provided in the present embodiment, and fig. 2 is an exploded schematic view of a motor assembly 20 formed by the bracket assembly 100 and a motor 21, please refer to fig. 1 and fig. 2.
This bracket component 100 is used for cooperating with motor 21, install in the base member of electric toothbrush 30 as an organic whole, because bracket component 100 includes first bullet pad 16, second bullet pad 18, support main part 10 and apron 13, first bullet pad 16 has elasticity with second bullet pad 18, apron 13 and support main part 10 lock, and form the chamber 14 that holds that is used for holding motor 21, motor 21 includes relative output and tail end 216, the output is provided with power output shaft 215, first bullet pad 16 sets up in the first end that holds chamber 14 and is used for cooperating with the output of motor 21, second bullet pad 18 sets up in the second end that holds chamber 14 and is used for cooperating with the tail end 216 of motor 21.
It is understood that the first end of the receiving cavity 14 refers to the end of the motor 21 corresponding to the power output shaft 215 after being mounted on the bracket assembly 100, and the second end of the receiving cavity 14 refers to the end of the motor 21 corresponding to the tail end 216 of the motor 21 after being mounted on the bracket assembly 100.
To enhance the user experience of the electric toothbrush 30, the posterior teeth are effectively contacted, and the difficult-to-reach wisdom teeth and the posterior gums are removed. The central line of the handle of the electric toothbrush 30 and the axis of the neck of the toothbrush head 31 are relatively inclined, and the inclined angle is designed to be a preset included angle α, because the toothbrush head 31 is fixedly connected with the output end of the motor 21, that is, the neck of the toothbrush head 31 and the output end of the motor 21 are coaxially arranged, the central line of the push-out motor 21 and the extending track of the bracket main body 10 in the bracket assembly 100 form the preset included angle α.
In the present embodiment, the buckling position matching relationship between the bracket body 10 and the cover plate 13 and the shock-proof elastic pads arranged at the front and rear ends of the motor 21 are utilized to eliminate the angle interference between the bracket assembly 100 of the electric toothbrush 30 and the center of the toothbrush handle, which is beneficial to smooth assembly in place, and meanwhile, a preset included angle α is formed between the axis of the power output shaft 215 of the motor 21 and the extending track of the toothbrush handle. That is, during the specific assembly, the first elastic pad 16 and the second elastic pad 18 are respectively installed at two ends of the motor 21, and then the motor 21 is installed in the bracket main body 10, because the first elastic pad 16 and the second elastic pad 18 have elasticity, the first elastic pad and the second elastic pad are installed in the bracket main body 10 through tight fit, and finally the cover plate 13 is buckled to complete the assembly. Simple structure, convenient assembling, stable and reliable structure, lower cost and contribution to product popularization.
The specific structure and correspondence of the various components of the bracket assembly 100 will be described in detail below.
Referring to fig. 1 and fig. 2, the bracket body 10 is used as a main bearing component of the motor 21, and is provided with a first fastening structure 11 and a second fastening structure 12 which are matched with the cover plate 13, the first elastic pad 16 and the second elastic pad 18, the first fastening structure 11 is located at one end of the bracket body 10, the second fastening structure 12 is located at a middle position of the bracket body 10, the first elastic pad 16 is located at the first fastening structure 11, the second elastic pad 18 is located at the second fastening structure 12, the cover plate 13 includes a first fastening portion 131 and a second fastening portion 135 which are located at two ends, wherein the first fastening portion 131 is fastened with the first fastening structure 11, the second fastening portion 135 is fastened with the second fastening structure 12, and the cover plate 13 is fastened with the bracket body 10 to form the accommodating cavity 14.
Fig. 3 is a schematic view of the bracket body 10, fig. 4 is a cross-sectional view taken along the direction C-C in fig. 3, and fig. 5 is a partial enlarged view of a portion a in fig. 2, as shown in fig. 3, 4 and 5.
The first buckle structure 11 includes a front blocking portion 111, a buckling portion 112, and a positioning portion 117, where the front blocking portion is a plate-shaped structure, an extending direction of the front blocking portion 111 forms an included angle with an extending track of the bracket main body 10, and specifically, the front blocking portion is disposed perpendicular to the bracket main body 10, it can be understood that the relative perpendicular does not mean an absolute perpendicular, and as long as the included angle formed between the front blocking portion and the bracket main body 10 is within a range of 80 ° to 100 °, the front blocking portion and the bracket main body 10 may have a substantially perpendicular relationship.
Clamping portion 112 is located one side that preceding fender portion 111 is close to second buckle structure 12, clamping portion 112 has two parts from top to bottom, and form the clamping between clamping portion 112 and the preceding fender portion and establish groove 115, this clamping groove 115 is used for establishing the cooperation joint with first bullet pad 16, clamping portion 112 quantity is two, and sets up in one side of preceding fender portion relatively, clamping portion 112 all includes lug 113 and tang 114, forms spacing space between two lugs 113 that set up relatively, and first bullet pad 16 is installed when first buckle structure 11, and the fixed part 163 of first bullet pad 16 is located spacing space and realizes limiting displacement with the cooperation of lug 113, and is concrete, has joint clearance 116 between lug 113 and the preceding fender portion, and when first bullet pad 16 was installed in first buckle structure 11, the first joint portion 131 of apron 13 stretched into joint clearance 116 and clamping portion 112 block.
In the present embodiment, the engaging portions 112 are symmetrically disposed on one side of the front blocking portion, but other arrangements may be adopted, and are not limited to the symmetrical arrangement.
The positioning portion 117 is disposed in the circumferential direction of the front blocking portion 111 and corresponds to the fastening groove 115, the positioning portion 117 is protruded from the front blocking portion and extends out to both sides, and the positioning portion 117 is located at the bottom of the fastening groove 115 and is used for limiting the fitting depth of the first spring washer 16.
Fig. 6 is a sectional view taken along the direction D-D in fig. 3, fig. 7 is a partial enlarged view taken at the point B in fig. 2, and fig. 8 is a partial enlarged view taken at the point E in fig. 3, as shown in fig. 3 to 8.
One side of the second buckle structure 12 close to the first buckle structure 11 is provided with a first matching portion 121 and a second matching portion 122 (please refer to fig. 3), the first matching portion 121 is located on the bottom wall of the bracket body 10, the second matching portion 122 is located on the side wall of the bracket body 10, the second elastic pad 18 is clamped by the first matching portion 121 and the second matching portion 122, and the second matching portion 122 is only arranged on the side wall of one side of the bracket body 10, so that the fool-proof effect is achieved during installation, and an operator can easily install the second elastic pad in place.
In this embodiment, the first engaging portion 121 is a strip-shaped boss, and the second engaging portion 122 is a slot, but in other embodiments, other existing structures that can be engaged with each other may be used, and the present invention is not limited in particular.
Referring to fig. 3 and fig. 8, the second fastening structure 12 includes a guiding portion 123, and the guiding portion 123 is provided with a clamping groove 124, which is used for cooperating with the second clamping portion 135 of the cover plate 13, so that the second clamping portion 135 of the cover plate 13 extends into the clamping groove 124 and then is clamped with the second fastening structure 12.
Specifically, the card slot 124 includes a first guiding portion 125 and a second guiding portion 126, the first guiding portion 125 has a guiding function, the first guiding portion 125 is a through hole structure, the second guiding portion 126 is used for limiting, and a card edge 127 (see fig. 6) is disposed at a bottom end of the second guiding portion 126.
Fig. 9 is a structural diagram of the first elastic pad 16 viewed from a first perspective, and fig. 10 is a structural diagram of the first elastic pad 16 viewed from a second perspective, as shown in fig. 9 and 10.
The first elastic pad 16 has an inwardly recessed cavity for being sleeved on the output end of the motor 21, and a clamping portion 161, a stopping portion 162 and a fixing portion 163 are disposed on the outer side of the first elastic pad 16, wherein the clamping portion 161 is clamped with the clamping portion 112 of the first fastening structure 11 in a matching manner, and the stopping portion 162 is clamped with the clamping groove 115 of the first fastening structure 11 and is matched with the positioning portion 117.
The engagement portion 161 and the engagement portion 112 can be engaged with each other by a structure, in which the engagement portion 161 is an inward concave groove structure, and the engagement portion 112 is an outward convex bump structure; or, the engaging portion 161 is a protruding block structure protruding outward, the engaging portion 112 is a recessed groove structure recessed inward, and the protruding block is engaged into the recessed groove, so that the engaging portion 161 is engaged with the seam allowance 114 of the engaging portion 112.
The stopping portions 162 are symmetrically disposed and extend to two sides, and the stopping portions 162 are convex cylindrical structures which are just clamped in the clamping grooves 115 of the first fastening structure 11 and are attached to the positioning portions 117.
The fixing portion 163 is convexly disposed on the first elastic pad 16, and the fixing portion 163 is connected between the engaging portions 161, when assembling, the fixing portion 163 is clamped in the limiting space formed by the clamping portion 112 of the first fastening structure 11, and a gap is formed between the fixing portion 163 and the front stop portion, so that the first clamping portion 131 of the cover plate 13 can penetrate through the gap and then extend into the clamping gap 116. After the cover plate 13 is assembled with the bracket body 10, the first clamping portion 131 of the cover plate 13 is matched with the lug 113 and passes through the clamping gap 116 to be clamped with the seam allowance 114.
Fig. 11 is a schematic structural view of the second elastic pad 18, please refer to fig. 11.
The second elastic pad 18 is provided with a first mounting portion 181 and a second mounting portion 182, the first mounting portion 181 is located at the bottom of the second elastic pad 18, the second mounting portion 182 is located on the side wall of the second elastic pad 18, and a buffer portion 183 is further arranged on the rear wall of the second elastic pad 18, namely, on the side close to the second buckle structure 12.
In this embodiment, the first engaging portion 121 is a strip-shaped protrusion, and the second engaging portion 122 is a slot-shaped protrusion. Therefore, the first mounting portion 181 of the second spring washer 18 is a strip-shaped groove, the strip-shaped groove is matched with the strip-shaped boss, the second mounting portion 182 is also in a stop shape, and the stop shape of the second mounting portion 182 is engaged with the stop shape of the second matching portion 122.
Optionally, the buffer 183 is provided with a deformation groove 184, when the second elastic pad 18 is mounted on the motor 21 and then mounted with the bracket body 10 as a whole, the second elastic pad 18 is deformed by pressure, and the redundant part is extruded into the deformation groove 184, so that the mounting is easy and the buffering function can be achieved.
The first mounting portion 181 is adapted to mate with the first mating portion 121 of the second snap structure 12 and the second mounting portion 182 is adapted to mate with the second mating portion 122 of the second snap structure 12. The second elastic pad 18 is engaged with the bottom wall of the stand body 10 through the first mounting portion 181, and the second mounting portion 182 is engaged with the side wall of the stand body 10, so that the operator can easily mount the second elastic pad 18 and the stand body 10 in place without having to reverse the mounting.
Fig. 12 is a schematic structural diagram of the cover plate 13, please refer to fig. 12.
The apron 13 is including relative first joint portion 131 and the second joint portion 135 that sets up, the protruding buckle 132 that is equipped with of first joint portion 131, and first joint portion 131 has seted up and has worn to establish through-hole 133 and motor wire guide, first joint portion 131 cooperates with the first buckle structure 11 of support main part 10, buckle 132 pass behind the joint clearance 116 of first buckle structure 11 and with the tang 114 joint of card portion 112, the lug 113 of card portion 112 of establishing wears to locate and wears to establish through-hole 133 simultaneously, the stability of reinforcing post-assembly structure, so that there is not relative motion between apron 13 and the support main part 10, thereby realize the lock of first joint portion 131 and first buckle structure 11. When the motor 21 is mounted on the bracket assembly 100, the pressure switch 33 disposed on the motor 21 passes through the motor wire hole to be electrically connected to the motor 21.
Because the motor of the electric toothbrush 30 is a direct current sound wave motor, which is controlled by the duty ratio and frequency of the square wave, when the brushing force exceeds the designed force value, the toothbrush head 31 drives the motor 21 to move integrally relative to the handle, so as to trigger the pressure switch 33 inside the handle shell 32, after the pressure switch 33 is triggered, the PCB (printed circuit board) changes the PWM value of the motor to control the duty ratio and frequency to reduce the output, and the reduction of the output is to reduce the left-right swing frequency of the output shaft 215 of the output end or to reduce the power-on time of the motor 21.
Wherein, second joint portion 135 includes card post 136 and spacing post 137, the extension end of card post 136 is provided with the trip, and card post 136 cooperates with the first leading-in portion 125 of second buckle structure 12, and the trip is stupefied 127 joint with the card of second leading-in portion 126 to the joint degree of depth of control apron 13, spacing post 137 and the cooperation of second leading-in portion 126 are spacing, and the swing of restriction apron 13, thereby realize the lock of second joint portion 135 and second buckle structure 12.
The assembly process of the bracket assembly 100 and the motor 21 provided in this embodiment 1 is to mount the first elastic pad 16 on the output end of the motor 21, and mount the second elastic pad 18 on the tail end 216 of the motor 21, so as to form a motor 21 assembly; then the motor 21 assembly is installed in the accommodating cavity 14 of the bracket main body 10, in order to ensure the assembling effect, the first elastic cushion 16 is in interference fit with the first buckling structure 11 of the bracket main body 10, and the second elastic cushion 18 is in interference fit with the second buckling structure 12 of the bracket main body 10; finally, the first clamping portion 131 of the cover plate 13 is clamped into the first clamping structure 11 of the bracket body 10, and the second clamping portion 135 is clamped into the second clamping structure 12 of the bracket body 10, so that a dead-lock connection is formed.
The bracket assembly 100 provided by the embodiment 1 of the invention has the following beneficial effects: design benefit, simple structure, the equipment is convenient, through the lock between support main part 10 and the apron 13 to and the first bullet pad 16, the second bullet pad 18 that set up around the motor 21, not only can eliminate the inclination between support main part 10 extension orbit and the central axis of motor 21 output shaft 215 and interfere, can also assemble smoothly and target in place, reduction production, assembly cost, stable in structure is reliable, is favorable to the product popularization.
Example 2
The present embodiment provides a motor assembly 20, which includes a motor 21 and a bracket assembly 100 as provided in the above embodiment 1, and is specifically described as follows:
fig. 13 is a schematic structural diagram of the motor assembly 20, and fig. 14 is a schematic structural diagram of the motor 21, please refer to fig. 13 and 14.
Because support main part 10 and apron 13 enclose the synthesis and hold chamber 14, motor 21 includes output and tail end 216, motor 21 inlays and locates and hold chamber 14, the output is fixed through the first end cooperation that first bullet fills up 16 and hold chamber 14, tail end 216 is fixed through the second end cooperation that second bullet fills up 18 and hold chamber 14, the axis that satisfies motor 21's output shaft 215 forms the above-mentioned condition of predetermineeing the contained angle with the extension orbit of support main part 10 under, moreover, the steam generator is simple in structure, easy to install, the installation back stable performance.
Specifically, the output end of the motor 21 is provided with a first fastening portion 213, the output shaft 215 of the motor 21 is rotatably embedded in the first fastening portion 213, the tail end 216 of the motor 21 is provided with the first fastening portion 213, the first elastic pad 16 penetrates through the output shaft 215 and is fastened with the first fastening portion 213, and the second elastic pad 18 is fastened with the second fastening portion 217.
In this embodiment, the first engaging portion 213 and the second engaging portion 217 are cross-shaped, the output shaft 215 of the motor 21 is disposed at the center of the first engaging portion 213, the first engaging portion 213 is engaged with the inner cavity of the first elastic pad 16, and the second engaging portion 217 is engaged with the inner cavity of the second elastic pad 18.
It can be understood that the shapes of the first engaging portion 213 and the second engaging portion 217 of the end portion of the motor 21 are not limited to the above structure, and are designed according to actual requirements, of course, the motor 21 may also be a motor with an existing structure, as long as the inner cavity structure of the first elastic pad 16 matches with the shape of the first engaging portion 213, and the inner cavity structure of the second elastic pad 18 matches with the shape of the second engaging portion 217, and according to actual requirements, the inner cavity structures of the first elastic pad 16 and the second elastic pad 18 may be designed to match with the shape of the end portion of the motor 21.
Optionally, the side wall of the output end of the motor 21 is provided with a pressure switch 33, and since the motor 21 in the electric toothbrush 30 is a direct current sound wave motor, power is supplied alternately in the forward and reverse directions, thereby realizing the leftward and rightward deflection movement of the motor 21, and the power-on duration in the forward and reverse directions needs to be adjusted to be consistent, so that the motor 21 can achieve the best vibration effect and amplitude. When the force applied to the toothbrush head 31 exceeds a preset force value, the toothbrush head drives the motor 21 to move, the pressure switch 33 on the motor 21 touches the handle shell 32, so that the pressure switch 33 is triggered, the PWM value of the motor is adjusted through the PCB, the duty ratio and the frequency are controlled, and the left-right swinging frequency of the power output shaft 215 of the motor 21 or the power-on time of the motor is reduced.
Example 3
This embodiment 3 provides an electric toothbrush 30, including the motor assembly 20 provided in embodiment 2 or the bracket assembly 100 provided in embodiment 1, and fig. 15 is a schematic structural view of the electric toothbrush 30, please refer to fig. 15, which is described in detail as follows:
the electric toothbrush 30 further comprises a motor 21, a toothbrush head 31 and a handle shell 32, the bracket assembly 100 is matched with the motor 21 to form the motor assembly 20, the motor assembly 20 is installed in the handle shell 32, the extending track of the bracket main body 10 is the same as the extending track of the handle shell 32, an output shaft 215 of the motor 21 is fixedly connected with the toothbrush head 31, and the motor 21 drives the toothbrush head 31 to reciprocate, so that the axis line of the toothbrush head 31 and the extending track of the handle shell 32 form the preset included angle α.
After the motor assembly 20 and the handle shell 32 are assembled, the toothbrush head 31 is mounted, during use, when the brushing force exceeds a designed value, the toothbrush head 31 can drive the motor 21 to move integrally, during movement, the pressure switch 33 behind the handle is triggered, so that the left-right swinging frequency of the power output shaft 215 of the motor 21 is reduced or the power-on time of the motor is reduced, a gap exists between the motor 21 and the first buckling structure 11 and the second buckling structure 12 of the bracket main body 10, and a space is reserved for the displacement of the motor while vibration noise is reduced.
The value of the trigger pressure switch 33 is adjusted by the hardness, the pre-pressing size and the moving stroke of the motor 21 of the first elastic cushion 16 and the second elastic cushion 18 before and after the motor 21.
When the motor assembly 20 is assembled and connected with the handle shell 32, a preset included angle α is formed between the central axis of the handle of the electric toothbrush 30 and the axis of the neck of the toothbrush head 31, similarly, the same preset included angle α is formed between the axis of the power output shaft 215 of the motor 21 and the extending track of the bracket main body 10, when the motor assembly 20 is assembled into the handle shell 32 and can generate physical interference with the handle shell 32, the bracket main body 10 is fixed in the guide rail inside the handle shell 32, the motor assembly 20 deforms, the cover plate 13 generates forward and backward displacement through the second buckling structure 12 of the bracket main body 10, and the motor assembly 20 is conveniently and smoothly assembled.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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.
Claims (9)
1. A motor assembly, comprising a bracket assembly and a motor; the bracket assembly comprises a first elastic pad, a second elastic pad, a bracket main body and a cover plate; the cover plate is buckled with the bracket main body and forms a containing cavity for containing the motor, the first elastic cushion is arranged at the first end of the containing cavity and is used for being matched with the output end of the motor, and the second elastic cushion is arranged at the second end of the containing cavity and is used for being matched with the tail end of the motor;
the motor assembly further comprises a pressure switch; the pressure switch is arranged on the side wall of the output end of the motor; when the motor deflection motion exceeds a preset force value, the pressure switch touches a handle shell of the electric toothbrush, so that the pressure switch is triggered; the pressure switch transmits a signal with overlarge force to the PCB so that the PCB controls the swing frequency of a power output shaft of the motor or reduces the power-on time of the motor;
or the pressure switch is arranged inside the handle shell; when the deflection motion of the motor exceeds a preset force value, the pressure switch touches the motor, so that the pressure switch is triggered; the pressure switch transmits a signal with overlarge force to the PCB so that the PCB controls the swing frequency of a power output shaft of the motor or reduces the power-on time of the motor;
the bracket main body is provided with a first buckle structure and a second buckle structure, and the cover plate is provided with a first clamping part and a second clamping part;
the first elastic pad is arranged on the first buckle structure, the first clamping part is clamped with the first buckle structure, the second elastic pad is arranged on the second buckle structure, and the second clamping part is clamped with the second buckle structure;
a first matching part and a second matching part are arranged on one side, close to the first buckle structure, of the second buckle structure, the first matching part is located on the bottom wall of the support main body, and the second matching part is located on the side wall of the support main body;
the second bullet pad is provided with first installation department and second installation department, first installation department with first cooperation portion matches, the second installation department with second cooperation portion matches.
2. The motor assembly of claim 1, wherein the first locking structure comprises a front blocking portion, a locking portion and a positioning portion, the extending direction of the front blocking portion forms an included angle with the extending track of the bracket main body, the locking portion is located on one side of the front blocking portion close to the second locking structure, the locking portion and the front blocking portion form a locking groove, and the positioning portion is located on the peripheral wall of the front blocking portion and corresponds to the locking groove;
the first elastic cushion is provided with a clamping portion and a stopping portion, the clamping portion is matched and clamped with the clamping portion, and the stopping portion is clamped and arranged in the clamping groove and matched with the positioning portion.
3. The motor assembly as claimed in claim 2, wherein the number of the engaging portions is two and the engaging portions are disposed on one side of the front blocking portion, each engaging portion includes a lug and a spigot, a spacing space is formed between the lugs disposed oppositely, and an engaging gap is formed between the lug and the front blocking portion;
the first bullet pad is protruding still to be equipped with the fixed part, the fixed part connect in between the block portion, the fixed part card is located spacing space, and with the clearance has between the preceding fender portion, first joint portion with the lug cooperation just passes the joint clearance with the tang joint, block portion with the tang cooperatees.
4. The motor assembly of claim 1, wherein a buffer is disposed on a side of the second spring washer adjacent to the second snap structure, and the buffer has a deformation groove.
5. The motor assembly of claim 1, wherein the second locking structure comprises a guiding portion, the guiding portion defines a locking groove, and the second locking portion extends into the locking groove and is locked to the second locking structure.
6. The motor assembly according to claim 5, wherein the locking groove comprises a first lead-in part and a second lead-in part, and a locking ridge is arranged at the bottom end of the second lead-in part;
the second joint portion includes kelly and spacing post, the extension end of kelly is provided with the trip, the kelly with first leading-in portion cooperation just the trip with the stupefied joint of card, spacing post with the cooperation of second leading-in portion is spacing.
7. The motor assembly according to claim 1, wherein the output end of the motor is provided with a first engaging portion, the output shaft of the motor is rotatably embedded in the first engaging portion, the tail end of the motor is provided with a second engaging portion, the first elastic pad is inserted into the output shaft and is clamped with the first engaging portion, and the second elastic pad is clamped with the second engaging portion.
8. An electric toothbrush comprising a motor assembly according to any one of claims 1 to 7.
9. The electric toothbrush of claim 8, further comprising a toothbrush head and the handle housing, wherein the bracket assembly and the motor cooperate to form a motor assembly, the motor assembly is mounted in the handle housing, the extending track of the bracket body is the same as the extending track of the handle housing, and the output shaft of the motor is fixedly connected to the toothbrush head, so that the axial line of the toothbrush head and the extending track of the handle housing form a preset included angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010368118.5A CN111725936B (en) | 2019-04-30 | 2019-04-30 | Motor assembly and electric toothbrush |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010368118.5A CN111725936B (en) | 2019-04-30 | 2019-04-30 | Motor assembly and electric toothbrush |
| CN201910360047.1A CN109980831A (en) | 2019-04-30 | 2019-04-30 | A kind of bracket component, motor sub-assembly and electric toothbrush |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910360047.1A Division CN109980831A (en) | 2019-04-30 | 2019-04-30 | A kind of bracket component, motor sub-assembly and electric toothbrush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111725936A CN111725936A (en) | 2020-09-29 |
| CN111725936B true CN111725936B (en) | 2022-04-15 |
Family
ID=67087309
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910360047.1A Pending CN109980831A (en) | 2019-04-30 | 2019-04-30 | A kind of bracket component, motor sub-assembly and electric toothbrush |
| CN202010368118.5A Active CN111725936B (en) | 2019-04-30 | 2019-04-30 | Motor assembly and electric toothbrush |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910360047.1A Pending CN109980831A (en) | 2019-04-30 | 2019-04-30 | A kind of bracket component, motor sub-assembly and electric toothbrush |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN109980831A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112701830B (en) * | 2021-01-21 | 2022-03-18 | 广州市宝太电子有限公司 | Structure is prevented tearing open by (window) curtain motor tip |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1662190A (en) * | 2002-06-24 | 2005-08-31 | 皇家飞利浦电子股份有限公司 | Nodal mounted system for driving an output tool |
| CN103959620A (en) * | 2011-12-05 | 2014-07-30 | 松下电器产业株式会社 | Linear actuator structural body and oral cavity hygiene device provided with same |
| CN104488176A (en) * | 2012-07-13 | 2015-04-01 | 博朗有限公司 | Oral hygiene device with a resonant linear motor |
| CN204798048U (en) * | 2015-04-20 | 2015-11-25 | 张磊磊 | Vibration toothbrush with MP3 function |
| CN204971682U (en) * | 2015-09-16 | 2016-01-20 | 奉化市大烨宠物用品有限公司 | Shock attenuation electric toothbrush |
| CN205198181U (en) * | 2015-11-30 | 2016-05-04 | 东莞市罗曼罗兰电器科技有限公司 | Electric toothbrush's drive assembly seal structure |
| CN205514998U (en) * | 2016-01-28 | 2016-08-31 | 爱芽（北京）科技有限公司 | Electric toothbrush |
| CN106073924A (en) * | 2016-07-21 | 2016-11-09 | 东莞市雅思电子有限公司 | Electric toothbrush |
| CN205795840U (en) * | 2013-03-15 | 2016-12-14 | 洁碧有限公司 | Electric toothbrush with vibration suppression |
| CN106562831A (en) * | 2015-10-10 | 2017-04-19 | 苏州赛文电子科技有限公司 | Detachable electric toothbrush |
| CN107028673A (en) * | 2017-03-29 | 2017-08-11 | 奉化市大烨宠物用品有限公司 | A kind of electric toothbrush |
| CN206603834U (en) * | 2016-11-11 | 2017-11-03 | 罗涛 | A kind of electronic magnetcisuspension vibration acoustic toothbrush |
| CN206792507U (en) * | 2017-01-20 | 2017-12-26 | 江门市西屋厨房小家电有限公司 | A kind of shock-damping structure of electric toothbrush |
| CN207041589U (en) * | 2017-02-23 | 2018-02-27 | 深圳市加卓特科技有限公司 | Motor shock absorption pad and electric toothbrush |
| CN207382091U (en) * | 2017-07-25 | 2018-05-18 | 舒可士（深圳）科技有限公司 | A kind of motor sub-assembly of electric toothbrush |
| CN207721913U (en) * | 2017-04-20 | 2018-08-14 | 深圳市加卓特科技有限公司 | Proof fastener and electric toothbrush |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6836917B2 (en) * | 2001-05-07 | 2005-01-04 | The Procter & Gamble Company | Replaceable head electric toothbrush and connection structure therefor |
| US7627922B2 (en) * | 2005-01-10 | 2009-12-08 | Koninklijke Philips Electronics N.V. | Nodal mounted system for driving a power appliance |
| AU2012283147B2 (en) * | 2011-07-12 | 2015-01-15 | Colgate-Palmolive Company | Toothbrush and refill head for the same |
| CN205847045U (en) * | 2016-08-09 | 2016-12-28 | 东莞诺贝莱电器科技有限公司 | A kind of electric toothbrush motor |
| CN206499540U (en) * | 2016-11-07 | 2017-09-19 | 深圳市加卓特科技有限公司 | Electric toothbrush motor and electric toothbrush |
| CN209497343U (en) * | 2019-04-30 | 2019-10-15 | 上海飞科电器股份有限公司 | A kind of bracket component, motor sub-assembly and electric toothbrush |
-
2019
- 2019-04-30 CN CN201910360047.1A patent/CN109980831A/en active Pending
- 2019-04-30 CN CN202010368118.5A patent/CN111725936B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1662190A (en) * | 2002-06-24 | 2005-08-31 | 皇家飞利浦电子股份有限公司 | Nodal mounted system for driving an output tool |
| CN103959620A (en) * | 2011-12-05 | 2014-07-30 | 松下电器产业株式会社 | Linear actuator structural body and oral cavity hygiene device provided with same |
| CN104488176A (en) * | 2012-07-13 | 2015-04-01 | 博朗有限公司 | Oral hygiene device with a resonant linear motor |
| CN205795840U (en) * | 2013-03-15 | 2016-12-14 | 洁碧有限公司 | Electric toothbrush with vibration suppression |
| CN204798048U (en) * | 2015-04-20 | 2015-11-25 | 张磊磊 | Vibration toothbrush with MP3 function |
| CN204971682U (en) * | 2015-09-16 | 2016-01-20 | 奉化市大烨宠物用品有限公司 | Shock attenuation electric toothbrush |
| CN106562831A (en) * | 2015-10-10 | 2017-04-19 | 苏州赛文电子科技有限公司 | Detachable electric toothbrush |
| CN205198181U (en) * | 2015-11-30 | 2016-05-04 | 东莞市罗曼罗兰电器科技有限公司 | Electric toothbrush's drive assembly seal structure |
| CN205514998U (en) * | 2016-01-28 | 2016-08-31 | 爱芽（北京）科技有限公司 | Electric toothbrush |
| CN106073924A (en) * | 2016-07-21 | 2016-11-09 | 东莞市雅思电子有限公司 | Electric toothbrush |
| CN206603834U (en) * | 2016-11-11 | 2017-11-03 | 罗涛 | A kind of electronic magnetcisuspension vibration acoustic toothbrush |
| CN206792507U (en) * | 2017-01-20 | 2017-12-26 | 江门市西屋厨房小家电有限公司 | A kind of shock-damping structure of electric toothbrush |
| CN207041589U (en) * | 2017-02-23 | 2018-02-27 | 深圳市加卓特科技有限公司 | Motor shock absorption pad and electric toothbrush |
| CN107028673A (en) * | 2017-03-29 | 2017-08-11 | 奉化市大烨宠物用品有限公司 | A kind of electric toothbrush |
| CN207721913U (en) * | 2017-04-20 | 2018-08-14 | 深圳市加卓特科技有限公司 | Proof fastener and electric toothbrush |
| CN207382091U (en) * | 2017-07-25 | 2018-05-18 | 舒可士（深圳）科技有限公司 | A kind of motor sub-assembly of electric toothbrush |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109980831A (en) | 2019-07-05 |
| CN111725936A (en) | 2020-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH07213343A (en) | Brush to be used for purpose for personal hygiene | |
| CN111725936B (en) | Motor assembly and electric toothbrush | |
| KR20120079167A (en) | Electric toothbrush | |
| WO2006004316A1 (en) | Brushhead for an electric toothbrush | |
| CN215273521U (en) | Simple driving mechanism, electric toothbrush handle and electric toothbrush | |
| JP4773345B2 (en) | Brush head mounting system for electric toothbrush | |
| JP3637630B2 (en) | electric toothbrush | |
| KR200349249Y1 (en) | Electric toothbrush | |
| CN215080073U (en) | Body assembly and personal care equipment | |
| CN212491148U (en) | Neck massager and electrode assembly thereof | |
| CN114483900A (en) | Reciprocating movement machine core | |
| CN214105154U (en) | Neck massager | |
| CN110652370A (en) | Vibration motor, vibration module and electric toothbrush | |
| CN213525613U (en) | Electric toothbrush capable of preventing teeth from being pressed too much | |
| CN219720928U (en) | Electric toothbrush | |
| CN111973308B (en) | Electric tooth brush | |
| CN219743292U (en) | Massage head, massage mechanism, massage machine core and massage instrument | |
| CN215682048U (en) | Motor with mechanical brake | |
| CN220069899U (en) | Electric toothbrush connecting piece and electric toothbrush | |
| CN218247461U (en) | Handle and oral cleaning device | |
| CN218677799U (en) | Charging terminal, charging module, base station and cleaning system | |
| CN217162583U (en) | Neck massage instrument | |
| CN220046461U (en) | Massage head assembly and neck massage instrument | |
| JPH0316604Y2 (en) | ||
| CN115281871B (en) | Toothbrush head and electric toothbrush |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |