CN208461657U - Electromagnetic power driving mechanism and care device with the driving mechanism - Google Patents
Electromagnetic power driving mechanism and care device with the driving mechanism Download PDFInfo
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- CN208461657U CN208461657U CN201820753066.1U CN201820753066U CN208461657U CN 208461657 U CN208461657 U CN 208461657U CN 201820753066 U CN201820753066 U CN 201820753066U CN 208461657 U CN208461657 U CN 208461657U
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Abstract
The utility model discloses a kind of electromagnetic power driving mechanism and the care device with driving mechanism, including magnet assembly, two groups of standalone elastic components and movable part, the two sides of movable part are arranged in magnet assembly, magnet assembly is located at one end of movable part, magnet assembly includes coil, iron block and magnet, coil covers on iron block, magnet is arranged on elastic parts, magnet is arranged with the iron block interval for being arranged with coil, coil is powered, the iron block for being arranged with coil generates magnetism, to which driving magnet is mobile, magnet drives the elastic parts being attached thereto mobile, to drive the movable part connecting with elastic parts movement.Pass through the absorption relationship of iron block and magnet, control magnet movement, magnet drives the incorgruous movement of independent two groups of elastic parts, the movable part movement being connect to control with elastic parts, this incorgruous driving method of balance, the noise generated when movable part vibration and the vibratory sensation to shell can be obviously reduced, customer experience is more preferable, and the service life is longer.
Description
[technical field]
The utility model relates to motor-drive technique field more particularly to a kind of electromagnetic power driving mechanism and have described
The care device of driving mechanism.
[background technique]
As the improvement of people's living standards, demand of the people to electric product is more and more, especially in personal nursing
On product, for example Clean- brush class product realizes the automatic movement of brush head using automatic control mode, for example rotates, is reciprocal
Up and down motion, side-to-side movement etc..
Automatic driving method in the prior art is to realize that the reciprocating rotating of movable part drives by converter with motor.Its
It is overweight greatly generally to face volume, at high cost, noise is big, and the service life is insufficient, and the accuracy of manufacture requires the problems such as high.
For this purpose, existing many products propose the method that electromagnetic force is directly driven, especially have centainly in power toothbrush application field
Popularity rate.But in numerous designs, setting multiple groups special-shaped magnet with high costs is generally required, in order to guarantee precision and service life
Intensity largely uses metal component, and final manufacturing cost is excessively high, is unfavorable for marketing.The product of existing majority and because design on
Inadequate natural endowment, almost exist at present unsurmountable user use when grip seismaesthesia it is too strong, the problem of caused discomfort.
[utility model content]
To solve the above-mentioned problems, the utility model discloses a kind of electromagnetic power driving mechanism and has the driving mechanism
Care device, structure is simple, and using electromagnetic power driving method, noise and vibratory sensation, driving mechanism can be obviously reduced
It wears small when movement, keeps customer experience more preferable, longer life expectancy.
In order to achieve the above objectives, the utility model discloses a kind of electromagnetic power driving mechanism, including magnet assembly, elastic group
The two sides of the movable part are arranged in part and movable part, the magnet assembly, and the magnet assembly is located at one end of movable part,
The magnet assembly includes coil, iron block and magnet, and the coil covers on the iron block, and the magnet is arranged in the elasticity
On component, the magnet is arranged with the iron block interval for being arranged with the coil, and the coil leads to alternating current, is arranged with the line
The iron block of circle generates the magnetism of change in polarity, generates magnetic iron block and magnet and absorption or rejection occurs, drive the magnetic
Body is mobile, and the magnet drives the elastic parts being attached thereto mobile, to drive the institute connecting with the elastic parts
State movable part movement.
Further, the elastic parts include the first elastic parts and the second elastic parts, first elastic parts,
Second elastic parts and the movable part are linked together by articulated manner.
Further, the magnet includes the first magnet and the second magnet, first magnet and second magnet etc.
Distance is disposed side by side on the same side of the coil, and first magnet and the second magnet periodically relatively move.
Further, the density of line of magnetic force for improving the magnet is additionally provided between the magnet and the elastic parts
Iron yoke, the magnet are fixed on elastic parts together with iron yoke.
Further, the elastic parts includes thin-walled bracket and elastic portion, the thin-walled bracket include first support and
Second support, the first support and the second support are combined into U-typed hatch frame, the first support and second support
On be respectively arranged with convex block, first on the convex block of the first support on first elastic parts and second elastic parts
Convex block on bracket complements each other to form the first accommodating cavity, the convex block of the second support on first elastic parts and described the
The convex block in second support on two elastic parts complements each other to form the second accommodating cavity, and first magnet and the first iron are gripped solid
It is scheduled in the first accommodating cavity, second magnet and the second iron are gripped and is fixed in the second accommodating cavity, first magnet and first
Iron is gripped two first supports of driving and is moved together, and second magnet is gripped two second supports of driving with the second iron and moved together,
The first support moves under electromagnetic force contrary with the second support.
Further, the movable part is including the first contact, the second contact and for connecting first contact
With the connecting shaft of second contact, first contact and the first support are pivotally connected, second contact
It is pivotally connected with the second support.
Further, the elastic portion is " M " type structure or U-typed structure, and " M " the type structure or U-typed structure
Open end be fixed on convex block, the elastic portion contacts described to limit with first contact and second contact
The angle of movable part movement.
Further, the iron block is E type structure, U-shaped structure, I type structure or c-type structure.
A kind of care device is also disclosed in the utility model, including electricity described in shell, main control module and above-mentioned any one
Magnetomotive driving mechanism, the main control module and the driving mechanism are respectively contained in shell, and the shell includes main part
The head being connected with the main part, the movable part are connect with head, and the driving mechanism is electrically connected with the main control module
It connects, after the coil in the driving mechanism is powered, the movable part drives the head movement.
Further, the electric current flowed through on the coil is alternating current.
The working principle of the utility model are as follows:
It allows iron block to generate using coil energization magnetic, magnet is separately fixed with iron block, and the gap that intermediate setting is certain,
It ensure that the stability of dynamical system, and pass through absorption and mutex relation that iron block is combined with the magnetic pole of magnet different name of the same name, control
It makes the first magnet and the second magnet is incorgruous movement at any time.Magnet movement generates inertia, to can generate to shell
Jerk, but because the present apparatus realizes any time direction of motion of the first magnet and the second magnet on the contrary, to counteract
The shell active force to accommodating driving mechanism generated by inertia.Theoretically, by reasonably adjusting the weights of two groups of elastic parts
Amount, it can be achieved that shell active force offset after be zero, realize full load output and shell without seismaesthesia.The magnet of balance mode driving
After solving to the seismaesthesia of shell, the movable part movement that power is connected by elastic parts realizes main shaft output high speed and back and forth turns round
The torque turned, solves the contradiction that conventional design power output also will increase with hand-held seismaesthesia greatly.
Compared with prior art, the utility model has the following beneficial effects:
1) the utility model proposes balance mode movement the more conventional electromagnetic power design of electromagnetic power structure, can be with
The noise generated when vibration and movable part motional inertia is obviously reduced to the vibratory sensation of shell, keeps customer experience more preferable, in this way
Driving method to wear movable part during exercise small, the service life is longer；
2) structure disclosed by the utility model can directly adopt the simple rectangular magnet of geometrical body, also be able to maintain efficiently
Rate driving, avoids the special-shaped magnet that some designs must be high using cost, and cost advantage is obvious；
3) the thin-walled bracket on elastic parts is using " U " structure that Open Side Down, while being provided on movable part and mutually dividing
From the first contact and the second contact, the first contact and the second contact connect with corresponding thin-walled bracket respectively, into
Action edge transmitting, dynamic structure is simple, realizes that power passes through flexible structure conversion and transmitting, whole process gapless is viscous
It closes, transmission efficiency is high, and the sport efficiency height of movable part shows low noise, and power is abundant；
4) elastic portion is using " u "-shaped or " W-shaped, realization resonance energy storage, and combination thin-walled supporting structure, make driving mechanism
Resonance quality factor is higher.
[Detailed description of the invention]
The utility model is above-mentioned and/or additional aspect and advantage from the following description of the accompanying drawings of embodiments will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the utility model driving mechanism constitutional diagram；
Fig. 2 is the elastic parts and magnet assembly annexation figure of the utility model driving mechanism；
Fig. 3 is the utility model driving mechanism explosive view；
Fig. 4 is the utility model magnet assembly syntagmatic schematic diagram；
Fig. 5 is the direction of motion schematic diagram of magnet when the utility model coil leads to positive current；
Fig. 6 is the force resolution figure under motion state shown in the utility model Fig. 5；
Fig. 7 is the direction of motion schematic diagram of magnet when the utility model leads to negative current；
Fig. 8 is the first elastic parts of the utility model schematic diagram；
Fig. 9 is the first elastic parts of the utility model schematic diagram；
Figure 10 is the movable part perspective view of the utility model " Z " type structure；
Figure 11 is the movable part top view of the utility model " Z " type structure；
Figure 12 is the movable part schematic diagram of the utility model " O " type structure；
Figure 13 is the movable part schematic diagram of the utility model " work " type structure；
Figure 14 is the movable part structural schematic diagram of the utility model band tensioning circle；
Figure 15 is the connection relationship diagram of the utility model U-shaped iron block and coil and magnet；
Figure 16 is the corresponding sectional view of the utility model Figure 12；
Figure 17 is the connection relationship diagram of the utility model I sections block and coil and magnet；
Figure 18 is the corresponding sectional view of the utility model Figure 14；
Figure 19 is the connection relationship diagram of the utility model c-type iron block and coil and magnet；
Figure 20 is the corresponding sectional view of the utility model Figure 16；
Figure 21 is that the utility model driving mechanism is used in the structural schematic diagram in electric toothbrush.
[specific embodiment]
The utility model is further described with exemplary embodiment with reference to the accompanying drawing, it is wherein identical in attached drawing
Label all refers to identical component.In addition, if the detailed description of known technology is for showing the feature of the utility model
Be it is unnecessary, then omit it.The embodiments described below with reference to the accompanying drawings are exemplary, is only used for explaining that this is practical
It is novel, and limitations of the present invention cannot be construed to.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being used in the specification of the utility model
Wording " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or
Add other one or more features, integer, step, operation, element, component and/or their group.It should be understood that working as us
Element is claimed to be " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or can also be with
There are intermediary elements.In addition, " connection " used herein or " coupling " may include being wirelessly connected or wirelessly coupling.Used here as
Wording "and/or" include one or more associated wholes for listing item or any cell and all combinations
The direction term on relational terms such as first and second and the like and "upper" "lower" " left side " " right side ", is used merely to
It distinguishes one entity or operation from another entity or operation, without necessarily requiring or implying these entities or behaviour
There are any this actual relationship, sequence and directions between work.
Please referring to Fig. 1, Fig. 2 and Fig. 3, the utility model discloses a kind of electromagnetic power driving mechanism, including magnet assembly 10,
Elastic parts 20 and movable part 30, the magnet assembly 10 is located at wherein one end of movable part 30, described in electricity consumption magnetic drive
Movable part 30 moves reciprocatingly, and the elastic parts 20 is located at the wherein two sides of the movable part 30, to limit the movable part
30 amplitudes moved back and forth, the magnet assembly 10 include coil 11, iron block 12 and magnet 13, and 11 sets of the coil is in the iron
On block 12, the iron block 12 is fixed in the first support frame (not shown), and the magnet 13 is fixed on elastic parts 20, institute
It states and is spaced setting between the first support frame and elastic parts 20, therefore the magnet 13 and the iron block 12 for being arranged with the coil 11
Interval setting, the elastic parts 20 are connect with the movable part 30, and the coil 11 is powered, and are arranged with the coil 11
Iron block 12 generates magnetism, generates magnetic iron block and magnet 13 and absorption or rejection occurs, drive the magnet 13 mobile, institute
Stating magnet 13 drives the elastic parts 20 that is attached thereto mobile, thus drive connect with the elastic parts 20 it is described
Movable part 30 moves.It is specifically that one end of the magnet 13 is the South Pole, and one end is the arctic, when coil 11 is powered, according to ampere
Law, the iron block 12 for being arranged coil 11 can generate polarity, it is however generally that, corresponding polarity can be presented in the both ends of iron block 12, in this way,
The power that an absorption will be generated to the magnet 13 being oppositely arranged therewith or repelled.Since magnet 13 is arranged in the magnetism
On component 10, in one embodiment, magnet 13 is fixed on magnet assembly 10, and is set between magnet 13 and iron block 12
Be equipped with gap, iron block 12 is also to be fixed on the first support frame, and the first support frame is immovable, therefore when magnet 13 with magnetic
When iron block 12 generates absorption or rejection, it is mobile that magnet 13 will drive elastic parts 20, so that movable part 30 be driven to transport
It is dynamic.
Electromagnetic power driving mechanism described in the utility model uses electromagnetic power control mode, and vibration can be obviously reduced
When the vibratory sensation of noise and movable part that generates, customer experience is more preferable, and such driving method grinds movable part during exercise
Damage small, the service life is longer.
Referring to Fig. 3, magnet 13 includes the first magnet 131 and the second magnet 132, iron block 12 is " E " shape structure, the first magnetic
It is provided with certain gap between body 131 and the second magnet 132 and iron block 12, ensure that the stabilization of dynamical system.The iron block
The 1/2 of the wide about central tongue of 12 two sides tongues.Coil 11 is set in the middle position of " E " shape iron block 12, first magnet 131 with
Second magnet 132 is disposed side by side on the same side of the coil 11, and being equidistant for the coil 11, and the first magnetic
Polar direction is opposite when body 131 is put with the second magnet 132.Since the first magnet 131 and the second magnet 132 are to be fixed on
On elastic parts 20, coil 11 is set on iron block 12, and separately positioned with magnet 13, after coil 11 is powered, can make iron block
12 generate magnetism, according to the principle that the same sex is attracting, the opposite sex is repelled each other, and the first magnet 131 and the second magnet 132 can be relative to iron blocks
12 occur relative displacement, and polar direction is on the contrary, therefore the first magnet 131 when due to the first magnet 131 and the setting of the second magnet 132
It is contrary with the movement of the second magnet 132.Further, in the present embodiment, coil 11 and iron block 12 are fixed
, and relative displacement can occur for the elastic parts 20 connecting with magnet 13, therefore work as magneticaction of the magnet 13 by iron block 12
Afterwards, elastic parts 20 will move.In this embodiment, magnet 13 is realized same using androgynous multistage magnetization technology
The more double magnetic pole performances of plane.A coplanar bipolar magnet can also be constituted with simple conventional separate magnets bonding.Magnet sizes are about
For long 1 millimeter of 12 millimeters thick of 5 mm wides, made of neodymium iron boron epistasis magnet material.
A kind of preferred scheme is that the wherein side of magnet 13 is additionally provided with iron yoke 14, and magnet 13 is solid together with iron yoke 14
It is scheduled on elastic parts 20, it is the good pure iron of magnetic property that the iron yoke 14, which is a kind of soft iron of magnetic conduction, which has
Both sides function, first is that by the further integer of the magnetic line of force of magnet 13, surface centralization further promotes the magnetic of magnet 13
It is close, it makes 13 flux density of magnet under the conditions of equal volume higher, and can effectively promote about 30%, saves the materials on magnet 13
Cost.Another effect of the iron yoke 14 is counterweight energy storage, by the independent weight ratio for adjusting two panels iron yoke 14, enables two groups of independences
Elastic parts moved within the unit time and generate the opposite power of inertia phase etc., effect, to effectively eliminate the vibration of driving mechanism
It is dynamic.
- Fig. 5 referring to Figure 4 together, the left side of the first magnet 131 are the South Pole, the right is the arctic, then the second magnet 132
Positional relationship is that the left side is the arctic, and the right is the South Pole.By taking the motion conditions of the second magnet 132 as an example, when one logical to coil 11
When the electric current of forward direction, the intermediate tongue piece of the iron block 12 of " E " type structure is the arctic, and both ends tongue piece is the South Pole, and the second magnet 132
The left side is the arctic, and the right is the South Pole, at this point, the opposite sex is repelled each other since the same sex is attracting, the left side of the second magnet 132 will do it is attracting,
The right can repel each other, and such second magnet 132 has a power F mobile to upper left side, since the second magnet 132 is to be fixed on bullet
Property component 20 on, elastic parts 20 because swing arm height-to-breadth ratio greatly different difference be can move left and right, cannot move up and down
Structure, therefore this upper left mobile power F is offset to the power in 12 direction of iron block by elastic parts 20, only remaining to be moved to the left
Power is the power decomposed to the power F on upper left side mobile 12 along 12 direction of iron block and left and right directions, due to the second magnet refering to Fig. 6
132 with iron block 12 be up and down it is disposed in parallel, therefore the power F1 in the direction y in figure be decomposition the power towards iron block 12, another
Power F2 along the direction x is then the power being moved to the left, at this point, the second magnet 132 is moved to the left.
Referring to Fig. 7, the intermediate tongue piece of the iron block 12 of " E " type structure is when the connection of coil 11 is the electric current of negative sense
The South Pole, both ends tongue piece are the arctic, and since the left side of the second magnet 132 is the arctic, the right is the South Pole, therefore it is mobile to have a upper right
Power, the mobile power of this upper right counteracts in the power of vertical direction by elastic parts, then be only left power to the right, at this time second
Magnet 132 moves right.Since the first magnet 131 and the second polarity when putting of magnet 132 are opposite, therefore work as coil
When 11 energization, the first magnet 131 and 132 direction of motion of the second magnet are on the contrary, therefore the corresponding position of drive elastic parts 20
Opposite direction moves to the left and right.
Also referring to Fig. 3, in the present embodiment, elastic parts 20 includes the first elastic parts 21 and the second elastic parts
22, first elastic parts 21, second elastic parts 22 and the movable part 30 are connected to one by articulated manner
It rises.It in the present embodiment, can be by way of screw bolt and nut, wherein the first elastic parts 21 and the second elastic parts 22 difference
Positioned at both ends, and movable part 30 is located at centre, and bolt 41 is passed through from the first elastic parts 21, is then passed through after movable part and enters the
Three components are fixed together by two elastic parts 22 by nut 42.
Also referring to Fig. 8 and Fig. 9, the first elastic parts 21 is identical with the structure of the second elastic parts 22, is oppositely arranged,
The introduction that structure is carried out by taking the first elastic parts 21 as an example, please refers to Fig. 8-Fig. 9, and the first elastic parts 21 includes thin-walled bracket
211 and elastic portion 213, and convex block 212 is provided on thin-walled bracket 211, one end of elastic portion 213 is fixed on convex block 212.
Thin-walled bracket 211 is downwardly open U-typed elastic arm structure, therefore left and right pendulum can be carried out when being squeezed
It is dynamic.Thin-walled bracket 211 is divided into first support 2111 and second support 2112 by this hatch frame, the first support 2111 with
The upper end of the second support 2112 links together, lower end separation.U-typed elastic arm high tenacity and high rigidity modeling resistant to high temperature
Material production, " u "-shaped elastic arm may be up to 15000 swings per minute, and the type selecting of material is wanted can resisting fatigue and because bending repeatedly is drawn
Temperature rise and resistance pulling force of the magnet to " u "-shaped arm under the conditions of limiting temperature of cause.If " u "-shaped elastic arm material is crossed as hard as soft,
Toughness deficiency has an impact to bulk life time, and the thin-walled bracket 211 with " u "-shaped elastic arm to the greatest extent can be thin, to keep cutting as far as possible bigly
Face length-width ratio, excessively thick thin-walled bracket 211 will cause under same electromagnetism power drive, and displacement is very few, and then influence main shaft
The power pivot angle of 40 output.In the present embodiment, thin-walled bracket 211 is made of POM, and 211 thickness of thin-walled bracket is 0.5 millimeter,
About 4 millimeters high, brachium is about 20 millimeters.Plastic cement swing arm can also be replaced with spring steel plate, but cost of manufacture can rise, it is antifatigue
Stability control difficulty can increase.
Convex block 2121 and convex block 2122, first elasticity are respectively arranged in first support 2111 and second support 2112
The convex block in first support on the convex block 2121 of first support on component 21 and second elastic parts 22 cooperates
The first accommodating cavity 214 is formed, on the convex block of the second support on first elastic parts 21 and second elastic parts 22
Second support on convex block complement each other to form the second accommodating cavity, first magnet 131 and the first iron grip 141 and are fixed on
214 in one accommodating cavity, second magnet 132 and the second iron are gripped 142 and are fixed in the second accommodating cavity, first magnet 131
It grips 141 driving, two first supports with the first iron to move together, second magnet 132 and the second iron grip 142 driving two
Two brackets move together, due to the direction of motion of the first magnet 131 and the second magnet 132 on the contrary, therefore first elastic parts
21 is contrary with second support movement with the first support on second elastic parts 22.
Further, in the same elastic parts 20, due to the U-typed that first support and second support are lower ending opening
Elastic arm structure, thus when the first elastic parts 21 and the second elastic parts 22 enclose four Angle Positions can be with the side of deformation
Shape structure, when first support moves in the opposite direction with second support, mutually balance is offset each other, reaches automatic association
Multiple purpose is recalled to, also makes the resonance quality factor of driving mechanism higher, so that magnet 13 will not be fast moved to the vibration of generation
Innervation is transmitted to the external world.
Please also refer to Figure 10 and Figure 11, movable part 30 includes that the first contact 31 and first contact 31 are opposite
The second contact 32 being arranged and the connecting shaft 33 for connecting first contact 31 and second contact 32, it is described
First contact 31 is clamped in the first support 2111 of the first elastic parts 21 and the first support of the second elastic parts 22 (is schemed not
Show) between, and the second contact 32 be clamped in the first elastic parts 21 second support 2112 and the second elastic parts 22
Between two brackets.First support 2111, the second bullet when the movement of the first magnet 131, on the first elastic parts 21 of drive
Property component 22 on first support and the first contact 31 together towards the same direction move, when the second magnet 132 movement
When, it drives the second support 2112 on the first elastic parts 21, the second support on the second elastic parts 22 and second connects
Contact element 32 is moved towards the same direction together, due to the first contact 31 and the incorgruous dislocation motion of the second contact 32, and is connected
Axis 33 is between the first contact 31 and the second contact 32, therefore connecting shaft 33 twists, to drive and connecting shaft 33
The turning gear of connection reverses.
In the present embodiment, elastic portion 213 is " M " type structure or U-typed structure, and " M " the type structure or U-typed knot
The open end two sides of structure elastic portion 213 are separately fixed on convex block 2121 and convex block 2122.When the first magnet 131 and the second magnetic
When body 132 moves round about, due to elastic portion 213 be " M " type structure or U-typed structure, and its opening both ends
It is separately fixed on two different brackets, and elastic portion 213 is elastic construction, when two first supports are mobile, drives the
One contact 31 is mobile, when two second supports are mobile, drives the second contact 32 mobile, the first contact 31 connects with second
32 movement of contact element can be transmitted to elastic portion 213, generate a torsion in elastic portion 213, resonance energy storage is realized, simultaneously as bullet
Property portion 213 itself restoring force effect, first contact 31 and the second contact 32 can be prevented further mobile, also with regard to phase
Continue to reverse when in prevention connecting shaft 33.
In the present embodiment, the position that the first contact 31 on movable part 30 and the second contact 32 are contacted with connecting shaft 33
Install and be equipped with tongue 34,34 evagination of tongue on the first contact 31 and the second contact 32 it is contrary, top view is whole
Body is "Z"-shaped.The Z-shaped movable part of the present embodiment is made of pure nylon, and pure nylon, which has, is well resistant to flexible and heatproof
Performance shows good anti-fatigue performance.Entire elastic parts 20 has two panels support, it is ensured that as less as possible in longtime running
Because of the deformation that magneticaction of the long-term magnet to iron block 12 causes, can steadily be protected under the conditions of being up to 200 hours cumulative activations
The magnetic gap for holding about 0.3~0.5 millimeter has ensured the stability of dynamical system.
Further, the structure of movable part 30 is not limited to structure shown in Figure 10 and Figure 11, can also be described in Figure 12
" O " type structure, structure described in " work " type structure or Figure 14 described in Figure 13, such structure is in the first contact 31,
The elastic tension circle 35 of " O " type is arranged in position that two contacts 32 are connect with connecting shaft 33, when the first contact 31 and the
When two 32 incorgruous dislocation motions of contact, resetted by elastic tension circle 35.
Further, the structure of iron block 12 can also be U-shaped structure, I type structure or c-type structure, its working principle is that
The same, in order to reduce high frequency eddy current losses, made frequently with silicon steel sheet is stacked, naturally it is also possible to be closed using ingot iron powder
Technology for gold is realized, but efficiency is inferior to the former.When for U-shaped structure, Figure 15-Figure 16 is please referred to, two coils 11 are set,
It is separately fixed at the both ends of the iron block 12 of U-shaped structure.At this point, entire first magnet 131 is a polarity, the second magnet 132 is
One polarity, the polarity of two magnets on the contrary, be arranged in parallel respectively.When for I type structure, Figure 17-Figure 18, line are please referred to
Circle 11 is directly sleeved on iron block 12, the structure of the magnet 13 used in this case and the magnet 13 used on E sections block 12 and
Placement position is the same.The iron block 12 of another c-type structure, please refers to Figure 19-Figure 20, is only arranged a coil in middle position
11, and the structure of magnet and placement position are such as the iron block 12 of U-shaped structure.
Further, the utility model is also disclosed a kind of care device, including shell 200, main control module 300 and above-mentioned
The electromagnetic power driving mechanism 100, the main control module 300 are respectively contained in shell 200 with the driving mechanism 100
Interior, the shell 200 includes body portion 201 and head 202, and the movable part 30 is connect with head 201, the driving mechanism 100
It is electrically connected with the main control module 300, so that the coil 11 in the driving mechanism 300 is powered, the movement of movable part 30 drives head
Portion 202 moves.The electric current flowed through on the coil 11 is alternating current, in this way, the iron block 12 for being arranged with the coil 11 generates
The magnetism of change in polarity, to drive the first magnet 131 and the second magnet 132 to do periodic reverse motion, thus and driving machine
The main shaft 40 that structure 100 connects can realize reciprocal torsion.
Time-dependent current is applied to coil, in particular to alternating current be with good driving effect, conventional is positive and negative
The symmetrical square wave of half cycle, sine wave, half period square wave, asymmetric square waves etc..Coil 11 generates after by the effect of alternating electric field
Alternating electromagnetic field, iron block 12 guidance of the alternating electromagnetic field Jing Guo specific shape are bundled to 13 surface of magnet, form closure
Magnetic circuit.To prevent from being directly attracted because of the intrinsic magnetic force of magnet 13 and iron block 12, need to reasonably be arranged between magnet 13 and iron block 12
Gap.Preferred gap is 0.3~0.5 millimeter, can guarantee the stability of entire power mechanism 100 in this way.
Further, care device mentioned here can be electric toothbrush, electric cleaning face instrument or electric massage instrument etc.
Deng by taking electric toothbrush as an example, please referring to Figure 21, main control module 300 and driving mechanism 100 be equipped in body portion 202, simultaneously
Movable part 30 in driving mechanism 100 connects main shaft 40, and main shaft 40 extends to 201 position of head, and connect with head 201, head
Portion 201 is then head toothbrushes, and main shaft 40 rotates, then drives head toothbrushes to rotate, when main control module 300 provides alternating current,
Changes will occur for the magnetic force size and Orientation that iron block 12 in driving mechanism 100 generates.Usually we enable system work most
Good resonant state, that is, alternating electric field is matched with resonator system intrinsic frequency, delivery efficiency highest, drives load capacity at this time
It is most strong.
This implementation column actual tests show that entire dynamic structure is simple, high-efficient, and system resonance quality factor is high, resonance
Point is obvious.Resonance point is fallen between 250~290Hz, and after dragging toothbrush head, the output of dynamic torque is higher than 100gf.cm output pendulum
Angle is greater than 20 degree, and does not shake hand.In durability test, be applied on brush head in the load of 200gf, can cumulative operation time it is super
200 hours are spent, meets the needs of 5 year projected life of electric toothbrush.Reduce 60% compared with similar product in the dosage of magnet, economy
Benefit is evident.
Although having been illustrated with some exemplary embodiments of the utility model above, those skilled in the art will
Understand, in the case where not departing from the principle or spirit of the utility model utility model, these exemplary embodiments can be done
Change out, the range of the utility model utility model is defined by the claims and their equivalents.
Claims (10)
1. a kind of electromagnetic power driving mechanism, which is characterized in that including magnet assembly, elastic parts and movable part, the magnetism
The two sides of the movable part are arranged in component, and the magnet assembly is located at one end of movable part, and the magnet assembly includes line
Circle, iron block and magnet, the coil cover on the iron block, and the magnet is arranged on the elastic parts, the magnet with
It is arranged with the iron block interval setting of the coil, the coil leads to alternating current, and the iron block for being arranged with the coil generates polarity
The magnetism of variation generates magnetic iron block and magnet and absorption or rejection occurs, drives the magnet periodically mobile, described
Magnet drives the elastic parts being attached thereto mobile, to drive the movable part fortune connecting with the elastic parts
It is dynamic.
2. electromagnetic power driving mechanism according to claim 1, which is characterized in that the elastic parts includes the first elasticity
Component and the second elastic parts, first elastic parts, second elastic parts and the movable part pass through hinged side
Formula links together.
3. electromagnetic power driving mechanism according to claim 2, which is characterized in that the magnet includes the first magnet and the
Two magnets, first magnet and the equidistant the same side for being disposed side by side on the coil of second magnet, first magnetic
Body and the second magnet periodically relatively move.
4. electromagnetic power driving mechanism according to claim 3, which is characterized in that the magnet and the elastic parts it
Between be additionally provided with the iron yoke for improving the density of line of magnetic force of the magnet, the magnet is fixed on elastic parts together with iron yoke.
5. electromagnetic power driving mechanism according to claim 4, which is characterized in that the elastic parts includes thin-walled bracket
And elastic portion, the thin-walled bracket include first support and second support, the first support and the second support are combined into
U-typed hatch frame, is respectively arranged with convex block in the first support and second support, and first on first elastic parts
The convex block in first support on the convex block of bracket and second elastic parts complements each other to form the first accommodating cavity, and described the
The convex block mutual cooperation shape in second support on the convex block of second support on one elastic parts and second elastic parts
At the second accommodating cavity, first magnet and the first iron are gripped and are fixed in the first accommodating cavity, and second magnet is gripped with the second iron
It is fixed in the second accommodating cavity, first magnet is gripped two first supports of driving with the first iron and moved together, second magnetic
Body is gripped two second supports of driving with the second iron and is moved together, and the first support and the second support are under electromagnetic force
Mobile is contrary.
6. electromagnetic power driving mechanism according to claim 5, which is characterized in that the movable part includes the first contact
Part, the second contact and the connecting shaft for connecting first contact Yu second contact, first contact
It is pivotally connected with the first support, second contact and the second support are pivotally connected.
7. electromagnetic power driving mechanism according to claim 6, which is characterized in that the elastic portion be " M " type structure or
U-typed structure, and the open end of " M " the type structure or U-typed structure is fixed on convex block, the elastic portion and described first
Contact and second contact contact are to limit the angle that the movable part moves.
8. electromagnetic power driving mechanism according to claim 1, which is characterized in that the iron block is E type structure, U-shaped knot
Structure, I type structure or c-type structure.
9. a kind of care device, which is characterized in that including described in shell, main control module and the claims 1-8 any one
Electromagnetic power driving mechanism, the main control module and the driving mechanism be respectively contained in shell, and the shell includes master
Body portion and the head being connected with the main part, the movable part are connect with head, the driving mechanism and the main control module
It is electrically connected, after the coil in the driving mechanism is powered, the movable part drives the head movement.
10. care device according to claim 9, which is characterized in that the electric current flowed through on the coil is alternating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820753066.1U CN208461657U (en) | 2018-05-18 | 2018-05-18 | Electromagnetic power driving mechanism and care device with the driving mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820753066.1U CN208461657U (en) | 2018-05-18 | 2018-05-18 | Electromagnetic power driving mechanism and care device with the driving mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN208461657U true CN208461657U (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820753066.1U Expired - Fee Related CN208461657U (en) | 2018-05-18 | 2018-05-18 | Electromagnetic power driving mechanism and care device with the driving mechanism |
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| Country | Link |
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| CN (1) | CN208461657U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400690A (en) * | 2018-05-18 | 2018-08-14 | 东莞市沃伦电子科技有限公司 | Electromagnetic power driving mechanism and care device with the driving mechanism |
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2018
- 2018-05-18 CN CN201820753066.1U patent/CN208461657U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400690A (en) * | 2018-05-18 | 2018-08-14 | 东莞市沃伦电子科技有限公司 | Electromagnetic power driving mechanism and care device with the driving mechanism |
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Granted publication date: 20190201 |