CN104617732A - Personal cleaning and care appliance - Google Patents

Personal cleaning and care appliance Download PDF

Info

Publication number
CN104617732A
CN104617732A CN201510042433.8A CN201510042433A CN104617732A CN 104617732 A CN104617732 A CN 104617732A CN 201510042433 A CN201510042433 A CN 201510042433A CN 104617732 A CN104617732 A CN 104617732A
Authority
CN
China
Prior art keywords
transducer
permanent magnet
elastic component
drive coil
longitudinal axis
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.)
Granted
Application number
CN201510042433.8A
Other languages
Chinese (zh)
Other versions
CN104617732B (en
Inventor
戴晓国
徐振武
戴翎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Shift Electrics Co Ltd
Original Assignee
Shanghai Shift Electrics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Shift Electrics Co Ltd filed Critical Shanghai Shift Electrics Co Ltd
Priority to CN201510042433.8A priority Critical patent/CN104617732B/en
Publication of CN104617732A publication Critical patent/CN104617732A/en
Application granted granted Critical
Publication of CN104617732B publication Critical patent/CN104617732B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a personal cleaning and care appliance. The appliance comprises a driver transducer, a drive coil, the drive coil core, drive bracket. Transducer includes a drive shaft, a transducer elastic fixing member disposed about the longitudinal axis of the drive shaft in the left and right sides of the permanent magnet, a permanent magnet fixedly connected permanent magnet bracket, transducer actuator arms and transducers elastic member. Independently of the permanent magnet, the permanent magnet pole side, the other side of the permanent magnet having a magnetic polarity opposite to the example of the permanent magnet facing the driving coil in a direction of the magnetic pole N or S polarity in the direction toward the drive coil electrode of the angle between the direction of the magnetic field lines inside the permanent magnet and the driving coil core longitudinal axis is greater than 45 degrees and less than 135 degrees, the permanent magnet relative to the transducer to move the elastic member fixing member. When the drive frequency of the coil by an alternating current, the direction of movement of the permanent magnet and the driving coil core approximately parallel to the longitudinal axis, the angle between the two is greater than 170 degrees and less than 190 degrees. The appliance has simple structure, low cost, easy assembly, smooth rotation, low noise, low damping and secure.

Description

Personal cleanliness's care implement
Technical field
The present invention relates to a kind of apparatus for personal cleanliness's nursing, more particularly, relate to the personal cleanliness's care implement as electric toothbrush, electric shaver, electronic razor, Electrical Shower and so on.
Background technology
For personal cleanliness's care implements such as such as electric toothbrush, electric shaver, electronic razor, Electrical Shower, importantly, should have personal cleanliness's care implement that reciprocating motion can be converted to and make cleaning element do expection rotary motion, these personal cleanliness's care implements should simple, easy to assembly, the long service life of structure and safe and reliable.
There will be a known many for driving the Drive Structure of cleaning element.Such as motor, magnetic system and electromagnetic system.Some Drive Structure adopts bearing (such as ball bearing) to carry out supporting driver, this structure not only costliness but also complicated, but also there is the damping of noise and motor.
CN 100591301C discloses a kind of device lateral movement being converted to the rotary motion of utensil work package, wherein driven unit comprises electromagnet, side force can be produced, be combined with two permanent magnets when operating, permanent magnet is fixed to the moveable end pieces being positioned at motion transition components rear end, so that by the translation mode mobile terminal parts of side direction camber line a little.Two permanent magnets are installed on described end pieces relatively regularly.The drive actions of driven unit to be converted to torsion or the spinning movement of driving shaft by motion transition components by arranging leaf spring, driving shaft is roll brush head arm and brush again, and the longitudinal axis made it around driving shaft rotates.CN101297775B discloses a kind of method of adjustment of sympathetic vibration system spring elements, and wherein spring part does not bend, and changes its resonance frequency by fully changing the rigidity of elastic component, makes the driving frequency of its closely utensil.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of for personal cleanliness's care implement, and this cleaning appliance structure is simply compact, with low cost, easy to assembly, stability of rotation, noise are little, damping is low and safe and reliable.
For solving the problems of the technologies described above, provided by the present inventionly to comprise for personal cleanliness's care implement: handle, it comprises handle casing, the power unit in order to provide electric power to the various piece of personal cleanliness's care implement is equipped with in handle casing inside, in order to control the various mode of operation of personal cleanliness's care implement and the unlatching of personal cleanliness's care implement or the control section of closedown, in order to start or close the triggering part of described cleaning-nursing apparatus running and the electric energy of input be converted to the driver of mechanical energy output, driver comprises transducer, drive coil, drive coil iron core is in the drive coil set, for supporting support on the right side of the driver left side brackets of driver and driver, cleaning assemblies, it comprises cleaning element carrier and is distributed in the cleaning element on cleaning element carrier, and cleaning assemblies and driving shaft are removably linked together, wherein, transducer comprises the driving shaft inserting cleaning assemblies, at least one is anchored on a driver left side, the transducer elastic component fixture of right side support, at least two are arranged in the permanent magnet of the left and right sides relative to driving shaft longitudinal axis, for connecting firmly the corresponding permanent magnet support of described permanent magnet, connect firmly with permanent magnet support and the left side connected firmly with driving shaft, right hand transducer transmission arm and at least two are arranged on left side transducer elastic component and the right hand transducer elastic component of the driving shaft longitudinal axis left and right sides, left, one end of right hand transducer elastic component connects firmly with transducer elastic component fixture respectively, left, the other end of right hand transducer elastic component connects firmly with corresponding transducer transmission arm respectively, wherein, permanent magnet is separate, left side permanent magnet is being S pole or N pole towards the pole polarity in drive coil direction, right side permanent magnet is being the polarity contrary with the pole polarity of left side permanent magnet towards the pole polarity in drive coil direction, described left and right side permanent magnet is configured such that their internal magnetic field lines direction and the angle in drive coil iron core longitudinal axis direction are greater than 45 ° respectively and are less than 135 °, and left and right side permanent magnet can move relative to transducer elastic component fixture, when drive coil is the alternating current of f0 by frequency, the direction of motion of left and right side permanent magnet and drive coil iron core longitudinal axis direction less parallel, namely the angle of the two is for being greater than 170 ° and being less than 190 ° or be greater than-10 ° and be less than 10 °.
Technique scheme has the useful technique effect in following two aspects.First aspect, left and right side permanent magnet be arranged to their internal magnetic field lines direction and drive coil iron core longitudinal axis direction angle for being greater than 45 ° and being less than 135 ° time, the coil inside magnetic line of force direction that the magnetic line of force direction through drive coil formed between left and right side permanent magnet and energising drive coil are formed is that space is greater than 45 ° and is less than 135 ° and intersects, and namely between the magnetic field axis that produces of drive coil and permanent magnetic field axis, the mutual interference that produces is less.That is, the mutual interference in above-mentioned two magnetic fields is less, when the size of current in drive coil and direction change, the magnetic field that drive coil produces can change accordingly, but, due to the magnetic field axis of drive coil and the interference of permanent magnetic field axis less, the changes of magnetic field that drive coil produces is very limited on the impact of permanent magnetic field.When drive coil passes through the alternating current according to varies with cosine, because electrical conductor is in permanent magnetic field, electrical conductor is subject to the effect of electromagnetic force, electromagnetic force formula is F=NBILcos ω t, in formula, B is the magnetic density of permanent magnetic field at conductor place, Icos ω t is the electric current flow through in conductor, L is the effective length of conductor in permanent magnetic field, N is total radical of conductor, ω is the angular rate of curent change, and t is the time, is known by electromagnetic force formula, if N, B, L are constant, then F is only relevant with Icos ω t.Above-mentioned two the less magnetic fields of mutual interference can ensure that B change is less, and cleaning appliance internal structure can ensure that N, L are constant.Because cos ω t curve is smooth curve, namely electromagnetic force is a continuous gradation and without the physical quantity of sudden change, thus can ensure that cleaning appliance realizes steady shock-free motion under the driving of electromagnetic force F, the acceleration namely moved is without sudden change.Second aspect, at least two transducer elastic components are introduced in the invention, be respectively left side transducer elastic component and right hand transducer elastic component, utilize the bending strain of elastomeric material to form and there is the solid transducer of eigentone f, when transducer natural frequency f admittedly closely driving frequency f0 time, drive coil in handle casing produces and the electromagnetic force acted on the transducer makes transducer in resonance condition, when the natural frequency f of transducer equals driving frequency f0 admittedly, drive coil in handle casing produces and the electromagnetic force acted on the transducer makes transducer in resonance state.As everyone knows, the energy transfer efficiency under resonance condition or resonance state is very high.In the Drive Structure of existing employing bearing (such as ball bearing), the attaching means arranging bearing and so on is to prevent cleaning device from also there is other motion in addition to the rotation movement, but this constraint will bring noise and energy loss, too increase cost.In the present invention, owing to reasonably configuring elastic component and permanent magnet, the smooth rotation of transducer can be realized, thus eliminate some to realize the rotary motion of cleaning appliance and the attaching means (as bearing etc.) that must arrange.Because reasonable disposition permanent magnet makes the electromagnetism that transducer is subject to make a concerted effort to be approximately zero, and ingenious utilization effect torque on the transducer, can save described restraining structure, therefore make cleaning appliance structure compacter, rotation is more steady and noise is less.In addition, compared with being only provided with the structure of a transducer elastic component, the noise of cleaning appliance structure of the present invention is lower and usefulness is higher.To sum up above-mentioned two aspect Advantageous Effects, present invention achieves simple and compact for structure, with low cost, easy to assembly, that stability of rotation, noise are little, damping is low and safe and reliable target.
Preferably, left and right side permanent magnet is configured such that their internal magnetic field lines direction and the angle in drive coil iron core longitudinal axis direction are 90 °.Now, the coil inside magnetic line of force direction that the magnetic line of force direction passing drive coil formed between left and right side permanent magnet in the present invention and energising drive coil are formed is that 90 °, space is intersected, i.e. the magnetic field axis of drive coil generation and permanent magnetic field axis vertical take-off.The orthogonal of above-mentioned two magnetic fields can be interpreted as that two magnetic fields do not interfere with each other mutually, when the size of current in drive coil and direction change, the magnetic field that drive coil produces can change accordingly, but, due to magnetic field axis and the permanent magnetic field axis vertical take-off of drive coil, the changes of magnetic field that drive coil produces does not affect permanent magnetic field.When drive coil passes through the alternating current according to varies with cosine, because electrical conductor is in permanent magnetic field, electrical conductor is subject to the effect of electromagnetic force, electromagnetic force formula is F=NBILcos ω t, in formula, B is the magnetic density of permanent magnetic field at conductor place, Icos ω t is the electric current flow through in conductor, L is the effective length of conductor in permanent magnetic field, N is total radical of conductor, ω is the angular rate of curent change, and t is the time, is known by electromagnetic force formula, if N, B, L are constant, then F is only relevant with Icos ω t.Quadrature field above-mentioned in this example can ensure that B is constant, and cleaning appliance internal structure also can ensure that N, L are constant.Because cos ω t curve is smooth curve, namely electromagnetic force is a continuous gradation and without the physical quantity of sudden change, thus can ensure that cleaning appliance realizes steady shock-free motion under the driving of electromagnetic force F, the acceleration namely moved is without sudden change.
Preferably, transmission arm on the left of the transducer of personal cleanliness's care implement of the present invention, to connect firmly about the left side permanent magnet of driving shaft longitudinal axis and this transmission arm homonymy and corresponding permanent magnet support and the part be under about the left side transducer elastic component of driving shaft longitudinal axis and described transmission arm homonymy is defined as transducer left lower part, transmission arm on the right side of transducer, right side permanent magnet and corresponding permanent magnet support connect firmly and the lower part being in right hand transducer elastic component is defined as transducer lower right side part, there is at least one gap (being two gaps in the present invention) in transducer left lower part and transducer lower right side part, exist in this gap and be enough to compensate because out-of-balance force causes the magnetic field force of transducer translation, and allow at least one permanent magnet to move relative to another permanent magnet opposite polarity.This technical scheme has fully taken into account implement for personal cleaning in the past due to the error in manufacture or other disturbing factor, the size of each group of magnetic field force caused is unequal, thus destroy the state of personal cleanliness's care implement transducer stress balance, uneven stressed transducer will produce the translation trend except rotary motion, thus off-energy produce the situation of noise.Therefore, this technical scheme can adopt described two gaps, by changing the distance in described gap, effectively revises above-mentioned out-of-balance force, and then makes the motion of personal cleanliness's care implement more steady.
Preferably, the length of transducer left lower part and transducer lower right side portion gap is 0.1mm to 2mm.More preferably, the length in this gap is 0.2mm to 1mm.More effectively can playing the function for adjusting out-of-balance force in described gap thus, revising above-mentioned out-of-balance force better, and then make the motion of personal cleanliness's care implement more steady.
Preferably, in the present invention, permanent magnet can be cuboid Nd-Fe-B permanent magnet, and preferably it is about as 5mm to 30mm, is widely about 2mm to 20mm, and height is about 1mm to 10mm.This kind of permanent magnet has easy making process, normalization, standardization level advantages of higher, be easy to suitability for industrialized production, also can adopt this kind of permanent magnet of different size according to personal cleanliness's care implement of different size, to meet the needs of dissimilar personal cleanliness's care implement simultaneously.
Preferably, transducer can also be provided with four permanent magnets, and left side permanent magnet and right side permanent magnet are configured such that the reaction force size approximately equal that they are subject to, and difference in magnitude is within 10%, and direction is approximate contrary, and angular separation is within 10 °.Thus, driving shaft is subject to the effect of the equilibrant force of approximate alternation, and this alternation equilibrant force produces alternating torque, thus formation driving shaft back and forth, efficiently rotates at a high speed.
Preferably, transducer elastic component comprises Rectangular Elastic part or flap-type elastic component.Described Rectangular Elastic part or flap-type elastic component all have highly versatile, are easy to production and processing, cheap, be easy to the advantage obtaining and replace, and have good useful life, reliably constantly can absorb energy and release energy, ensure the normal steadily running of personal cleanliness's care implement.
Preferably, transducer can be provided with two transducer elastic components, and they are distributed in the left and right sides of driving shaft longitudinal axis symmetrically, and the angle of two transducer elastic components is 180 °; Left side transducer elastic component and right hand transducer elastic component are set to their bending resistant section coefficient and length approximately equal, difference in magnitude is within 10%, cause the amount of deflection of left side transducer elastic component and the amount of deflection amplitude approximately equal of right hand transducer elastic component, difference in magnitude is within 10%, and respective amount of deflection direction is contrary.Thus, driving shaft is subject to the effect of the equilibrant force of approximate alternation, and this alternation equilibrant force produces alternating torque, thus formation driving shaft back and forth, efficiently rotates at a high speed.
More preferably, the number of transducer elastic component can be multiple, especially, transducer also can be provided with three transducer elastic components, angle wherein between two transducer elastic components is 2 α, 0 ° of < α < 90 °, the angle in these two transducer elastic components between any one and the 3rd transducer elastic component is δ, δ=(360 ° of-2 α)/2.The technical scheme optimized thus can make transducer left and right side transmission arm act on the difference in magnitude of the power on driving shaft respectively within 10%, the direction of power is contrary, and the moment size of left and right side transmission arm to driving shaft longitudinal axis is similar to identical, moment direction is also identical, thus realize driving shaft drive cleaning element carrier and cleaning element steadily, reciprocating motion at high speed.
Described personal cleanliness's care implement, comprises electric toothbrush, electric shaver, electronic razor, Electrical Shower, can also be that other have the apparatus of similar functions.
Accompanying drawing explanation
Fig. 1 is the front view of personal cleanliness's care implement of the present invention;
Fig. 2 is the side partial sectional view of the care implement of personal cleanliness shown in Fig. 1;
Fig. 3 shows the front view of driver shown in Fig. 2;
Fig. 4 is the exploded view of driver shown in Fig. 3;
Fig. 5 is the stereogram of transducer;
Fig. 6 is the stereogram of drive coil shown in Fig. 4;
Fig. 7 is the schematic diagram under the assembled state of transducer and drive coil;
The principle key diagram that Fig. 8 A is the secondary winding current of drive coil shown in Fig. 7 direction and permanent magnet Impact direction;
Fig. 8 B is the principle key diagram of drive coil and permanent magnet magnetic field force;
Fig. 9 is the stereogram of the first modification transducer;
Figure 10 is the stereogram of transducer shown in Fig. 9 of arriving from another viewpoint;
Schematic diagram under the assembled state that Figure 11 A is transducer shown in Fig. 9 and modified drive coil;
The principle key diagram that Figure 11 B is drive coil secondary winding current direction shown in Figure 11 A and permanent magnet Impact direction;
Figure 12 is the stereogram of the modified drive coil shown in Figure 11 A;
Figure 13 is the schematic diagram under the assembled state of the second modification transducer and modified drive coil;
Figure 14 is modification transducer elastic component combination schematic diagram.
Main Reference Numerals illustrates:
1 is handle
2 is cleaning element carrier
3 is cleaning element
103 is seal
104 is shift knob
105 is handle casing
106 is switch
107 is control circuit wiring board
108 is charge coil
109 is rechargeable battery
110 is driver
111 is driving shaft
112 is driver left side brackets
113 is support on the right side of driver
114 is drive coil
115 is drive coil iron core
116 is left side permanent magnet
117 is right side permanent magnet
118 is left side permanent magnet support
119 is right side permanent magnet support
120 is armature winding on the left of drive coil
121 is armature winding on the right side of drive coil
122 is left side transducer elastic component
123 is right hand transducer elastic component
124 is transducer elastic component fixture
125 is transmission arm on the left of transducer
126 is transmission arm on the right side of transducer
127 is holding screw
128 is the secondary winding of drive coil
129 is the lower gap between transducer left lower part and this transducer lower right side part
130 is transducer
131 is the upper gap between transducer left lower part and this transducer lower right side part
211 is the first modification transducer drive axle
214 is the first modification transducer modified drive coil
215 is the first modification transducer modified drive iron-core coil
216 is the first modification transducer upper left-hand permanent magnet
217 is the first modification transducer lower left side permanent magnet
218 is permanent magnet on the right side of the first modification transducer bottom
219 is the first modification transducer upper right permanent magnet
222 is transducer elastic component on the left of the first modification transducer
223 is the first modification transducer right hand transducer elastic component
224 is the transducer elastic component fixture of the first modification transducer
225 is transmission arm on the left of the first modification transducer
226 is transmission arm on the right side of the first modification transducer
227 is the first modification transducer upper left-hand permanent magnet support
228 is the first modification transducer lower left side permanent magnet support
229 is the first modification transducer upper right permanent magnet support
230 is permanent magnet support on the right side of the first modification transducer bottom
231 is the first modification transducer modified drive coil secondary winding
232 is armature winding on the left of the first modification transducer modified drive coil
233 is armature winding on the right side of the first modification transducer modified drive coil
234 is the upper gap between the first modification transducer left lower part and this transducer lower right side part
235 is the lower gap between the first modification transducer left lower part and this transducer lower right side part
311 is the second modification transducer drive axle
314 is the second modification transducer modified drive coil
315 is the second modification transducer modified drive iron-core coil
316 is the second left routine permanent magnet in modification transducer top
317 is the second modification transducer lower left side permanent magnet
318 is permanent magnet on the right side of the second modification transducer bottom
319 is the second modification transducer upper right permanent magnet
322 is transducer elastic component on the left of the second modification transducer
323 is the second modification transducer right hand transducer elastic component
324 is transducer elastic component fixture on the left of the second modification transducer
325 is the second modification transducer right hand transducer elastic component fixture
326 is transmission arm on the left of the second modification transducer
327 is transmission arm on the right side of the second modification transducer
328 is the second modification transducer upper left-hand permanent magnet support
329 is the second modification transducer lower left side permanent magnet support
330 is the second modification transducer upper right permanent magnet support
331 is permanent magnet support on the right side of the second modification transducer bottom
332 is the upper gap between the second modification transducer left lower part and this transducer lower right side part
333 is the lower gap between the second modification transducer left lower part and this transducer lower right side part
334 is the gap on the left of the second modification transducer on the right side of transmission arm and this transducer between transmission arm
401 is the first transducer elastic component
402 is the second transducer elastic component
403 is the 3rd transducer elastic component
Embodiment
Exemplary hereafter using electric toothbrush as personal cleanliness's care implement, and by reference to the accompanying drawings exemplary embodiment of the present invention is described in more detail.Although only explain for electric toothbrush below, the present invention is not limited thereto.The present invention is also applicable to the apparatus that electric shaver, electronic razor, Electrical Shower etc. are nursed for personal cleanliness.
In whole accompanying drawing, similar Reference numeral represents similar parts.
For the sake of clarity, the word that have employed statement relative space position in this manual as " on ", D score, " top ", " bottom ", "left", "right", " transverse direction ", " forward ", " oppositely " etc. simply describe the correlation of an element as shown in the figure or feature and another element (one or more) or feature (one or more), wherein, drive coil longitudinal axis direction refers to and is parallel to the magnetic line of force direction that when drive coil flows through electric current, core interior produces; " on ", D score, " top ", " bottom " for driving shaft longitudinal axis, be defined as towards corresponding views along the upward direction being parallel to driving shaft longitudinal axis " on ", " top ", be defined as D score, " bottom " in downward direction along what be parallel to driving shaft longitudinal axis; " left side " and " right side ", for driving shaft longitudinal axis, is defined as on " left side " in the left side of driving shaft longitudinal axis along the direction perpendicular to driving shaft longitudinal axis towards corresponding views, is defined as on " right side " on the right side of it; " transverse direction " refers to the direction perpendicular to driving shaft longitudinal axis; " outwards " refers to and meets direction to operator perpendicular to paper; " inwardly " refers to perpendicular to the direction of paper away from operator.
In addition, the vocabulary "and/or" used in the application comprises any one and all combinations in one or more listed vocabulary be associated.
Although employ word " first " etc. in this specification to describe multiple element or component part, these elements or component part should by the restrictions of these words.These words only for distinguishing an element or component part and another element or component part, and do not comprise " sequentially ".Therefore, the ordinal number of those elements discussed below or component part is converted mutually also do not exceed the spirit and scope of the present invention.
As an example, as depicted in figs. 1 and 2, as electric toothbrush and so on for personal cleanliness nursing apparatus comprise handle 1 and removably (such as with snap-fit) be arranged on the cleaning assemblies on handle 1.Handle 1 comprises handle casing 105.Cleaning assemblies comprises cleaning element carrier 2, the cleaning element 3 be distributed on cleaning element carrier 2, and cleaning element 3 can be the article as bristle and so on.Cleaning assemblies (as brush) is such as removably linked together with snap-fit by cleaning assemblies and driving shaft 111, buckle connects can make driving handle 1 and cleaning assemblies reliably be linked together, and also can be separated driving handle 1 and cleaning assemblies easily.
Power unit, control section, triggering part and driver are equipped with in the inside of handle casing 105.Usual power unit comprises rechargeable battery 109 and charging circuit, provides electric power in order to the various piece to apparatus; Control section comprises control circuit wiring board 107, in order to the unlatching or closedown etc. of the various mode of operation and electric toothbrush that control electric toothbrush; Triggering part comprises switch 106, in order to start and to close the running of electric toothbrush; The function of driver is the mechanical energy electric energy of input being converted to output.
Handle 1 also comprises the charge coil 108 be loaded in handle casing 105, rechargeable battery 109, control circuit wiring board 107, the switch 106 be loaded on control circuit wiring board 107, the attached shift knob 104 be associated on handle casing 105, is fixed on driver 110 in handle casing 105 and seal 103, control circuit wiring board 107 and switch 106 and the electric communication of driver 110.Shift knob 104 connects with switch 106, by operation button switch 104 start switch 106.One end of seal 103 connects with cleaning element carrier 2, and the other end of seal 103 connects with driver 110, as waterproof sealing.
As shown in Figure 3 and Figure 4, driver 110 comprise transducer 130, drive coil 114, along be arranged on perpendicular to driving shaft longitudinal axis direction there is in drive coil 114 hollow space high permeance drive coil iron core 115, for supporting support 113 and holding screw 127 on the right side of the driver left side brackets 112 of driver 110 and driver, on the left of driver, the transducer elastic component fixture 124 of right side support 112,113 and transducer 130 tightened together by holding screw 127.
Transducer 130 comprises on the left of driving shaft 111, transducer elastic component fixture 124, the left side transducer elastic component 122 laying respectively at the driving shaft longitudinal axis left and right sides and right hand transducer elastic component 123, transducer and right side transmission arm 125 and 126, left side and right side permanent magnet 116 and 117 and left side and right side permanent magnet support 118 and 119, and the angle between described left and right sides transducer elastic component 122 and 123 can be 180 °.Left and right side transducer elastic component 122,123 can be linked together by injection moulding with transducer elastic component fixture 124, also can pass through injection mo(u)lding with a monoblock elastic component and transducer elastic component fixture 124.In the scheme that integral molded plastic is shaping, although adopt monoblock elastic component to make left and right transducer elastic component 122,123, because the Impact direction of left and right transducer elastic component 122,123 is different, so, still can think to be made up of two elastic components.
Certainly, transducer elastic component also can have other set-up modes, and these modes also will fall into scope of the present invention.
Cleaning assemblies removably inserts driving shaft 111, and transducer 130 and cleaning assemblies are linked together.Together with left side transducer elastic component 122 connects firmly with transducer elastic component fixture 124 respectively with one end of right hand transducer elastic component 123, the other end of left side transducer elastic component 122 and right hand transducer elastic component 123 is respectively with on the left of transducer, together with right side transmission arm 125,126 connects firmly.The left side of transducer 130 and right side permanent magnet 116 and 117, left side and right side permanent magnet support 118 and 119 and left side and right hand transducer elastic component 122,123, on the left of transducer, right side transmission arm 125,126, driving shaft 111 and transducer elastic component fixture 124 connect firmly.Transducer elastic component fixture 124 by the left of holding screw 127 and driver, right side support 112,113 connects firmly and is fixed in handle 1.Above part by being injection molded into one, also can be fitted together by mechanical connection manner.
The left side of transducer 130 and right side permanent magnet 116 and 117 and left side and right side permanent magnet support 118 and 119 surround hollow region, and this hollow region is in order to hold drive coil 114 and drive coil iron core 115.On the left of transducer, transmission arm 125, left routine permanent magnet 116 and left side permanent magnet support 118 connect firmly and the part be under left side transducer elastic component 122 is called transducer left lower part.On the right side of transducer, transmission arm 126, right side permanent magnet 117 and right side permanent magnet support 119 connect firmly and the lower part being in right hand transducer elastic component 123 is called transducer lower right side part.There is at least one gap in transducer left lower part and transducer lower right side part, is generally two gaps 129,131.This gap can allow permanent magnet 116 on the left of at least one to move relative to an opposite polarity right side permanent magnet 117.Described gap makes left side, right side permanent magnet 116,117 separate.Transducer 130 is provided with driving shaft 111 along near cleaning assemblies direction, and driving shaft 111 and cleaning assemblies are removably assembled together, and by the shape of appropriate design driving shaft 111, driving shaft 111 can be made effectively will to move with energy transferring to cleaning assemblies.
Motion analysis is carried out below in conjunction with transducer 130.See Fig. 1 to 7, user trigger the shift knob 104 of electric toothbrush thus touch switch 106 time, control system in handle 1 starts drive coil 114, and the left side armature winding 120 of drive coil 114 and right side armature winding 121 alternately pass through the alternating current that frequency is f0/2.The drive coil 114 of the magnetic field that the left side permanent magnet 116 of transducer 130 and right side permanent magnet 117 are formed and energising interacts and produces electromagnetic force.By reasonably configuring permanent magnet 116,117 relative to drive coil 114, the electromagnetic force that transducer 130 is subject to is in a basic balance, and produces torque M.Because alternating current flows through drive coil 114, the direction of the torque M on transducer 130 is also alternation.Suppose in an initial condition, the direction of the torque M of transducer is clockwise direction.Because transducer elastic component fixture 124 is fixed on the left of driver, on right side support 112,113, on the left of transducer, transmission arm 125 drives left side transducer elastic component 122 to bend along clockwise direction, left side transducer elastic component 122 bends strain, storage power, left side transducer elastic component 122 is around transducer elastic component fixture 124 bending strain along clockwise direction.Simultaneously, on the right side of transducer, transmission arm 126 drives right hand transducer elastic component 123 to bend along clockwise direction, right hand transducer elastic component 123 bends strain, and storage power, right hand transducer elastic component 123 is also around transducer elastic component fixture 124 bending strain along clockwise direction.Therefore, in the shell 105 of transducer 130 response handle 1, reciprocating rotation is made in the driving of drive coil 114.Cleaning element 3 is connected on transducer 130 by cleaning element carrier 2, and transducer 130 drives cleaning element 3 reciprocating rotation.
Creative introducing at least two transducer elastic components in the present embodiment, be respectively left side transducer elastic component 122 and right hand transducer elastic component 123, utilize the bending strain of elastomeric material to form and there is the solid transducer of eigentone f 130, when transducer 130 natural frequency f admittedly closely driving frequency f0 time, drive coil 114 in handle casing 105 produces and the electromagnetic force acted on transducer 130 makes transducer 130 be in resonance condition, when the natural frequency f of transducer 130 equals driving frequency f0 admittedly, drive coil 114 in handle casing 105 produces and the electromagnetic force acted on transducer 130 makes transducer 130 be in resonance state.As everyone knows, the energy transfer efficiency under resonance condition or resonance state is very high.In the Drive Structure of existing employing bearing (such as ball bearing), the attaching means arranging bearing and so on is to prevent cleaning device from also there is other motion in addition to the rotation movement, but this constraint will bring noise and energy loss, too increase cost.In the present invention, owing to reasonably configuring elastic component and permanent magnet, the smooth rotation of transducer 130 can be realized, thus eliminate some to realize the rotary motion of cleaning appliance and the attaching means (as bearing etc.) that must arrange.Because reasonable disposition permanent magnet makes the electromagnetism that transducer 130 is subject to make a concerted effort to be approximately zero, and ingenious utilization acts on the torque on transducer 130, can save described restraining structure, therefore makes cleaning appliance structure compacter, and rotation is more steady and noise is less.In addition, compared with being only provided with the structure of a transducer elastic component, the noise of cleaning appliance structure of the present invention is lower and usefulness is higher.
When the left side armature winding 120 of drive coil 114 by the right side armature winding 121 of electric current and drive coil 114 by electric current time, the secondary winding 128 of drive coil 114 produces induced electromotive force, secondary winding 128 and the external circuit of drive coil 114 form closed-loop path, so the secondary winding 128 of drive coil 114 produces induced current I1 equally.When the right side armature winding 121 of drive coil 114 is not by electric current by electric current for the left side armature winding 120 of drive coil 114, produce induced current I2 at the secondary winding 128 of drive coil 114.By rationally arranging circuit, the frequency of I1 with I2 can be made identical, direction is contrary, size approximately equal.
Certainly, one of ordinary skill in the art can also design other scheme, as saved the armature winding 120,121 of drive coil 114, the frequency directly making circuit produce is the secondary winding 128 of alternating current by drive coil 114 of f0, or only use a drive coil armature winding, in drive coil armature winding, flow through the alternating current that frequency is f0, to produce induced current etc. in drive coil secondary winding 128, these schemes all do not exceed the scope of the invention.
And for example Fig. 5,6,7, shown in 8A, in this example, be distributed with two removable and separate left sides, right side permanent magnet 116,117 along driving shaft longitudinal axis both sides.This two permanent magnets 116,117 edge is contrary towards the pole polarity in drive coil 114 direction.Can by left side, right side permanent magnet 116,117 is arranged to their internal magnetic field lines direction and the angle in drive coil iron core 115 longitudinal axis direction is greater than 45 ° and is less than 135 °, preferably this angle is 90 °.As shown in Figure 7, drive coil iron core 115 longitudinal axis direction is that now drive coil iron core 115 longitudinal axis direction is mutually vertical with driving shaft longitudinal axis along the inside or outward direction perpendicular to paper.
In the present invention, their internal magnetic field lines direction and the angle in drive coil iron core 115 longitudinal axis direction are arranged in left side, right side permanent magnet 116,117 when being 90 °, the coil inside magnetic line of force direction that the magnetic line of force direction through drive coil of formation between left and right side permanent magnet 116,117 and energising drive coil are formed is that 90 °, space is intersected, i.e. the magnetic field axis of drive coil 114 generation and permanent magnetic field axis vertical take-off.The orthogonal of above-mentioned two magnetic fields can be interpreted as that two magnetic fields do not interfere with each other mutually, when the size of current in drive coil 114 and direction change, the magnetic field that drive coil 114 produces can change accordingly, but, due to magnetic field axis and the permanent magnetic field axis vertical take-off of drive coil 114, the changes of magnetic field that drive coil 114 produces does not affect permanent magnetic field.When drive coil 114 passes through the alternating current according to varies with cosine, because electrical conductor is in permanent magnetic field, electrical conductor is subject to the effect of electromagnetic force, electromagnetic force formula is F=NBILcos ω t, in formula, B is the magnetic density of permanent magnetic field at conductor place, Icos ω t is the electric current flow through in conductor, L is the effective length of conductor in permanent magnetic field, N is total radical of conductor, ω is the angular rate of curent change, and t is the time, is known by electromagnetic force formula, if N, B, L are constant, then F is only relevant with Icos ω t.Quadrature field above-mentioned in this example can ensure that B is constant, and cleaning appliance internal structure also can ensure that N, L are constant.Because cos ω t curve is smooth curve, namely electromagnetic force is a continuous gradation and without the physical quantity of sudden change, thus can ensure that cleaning appliance realizes steady shock-free motion under the driving of electromagnetic force F, namely the acceleration of object of which movement is without sudden change.
In order to clearly analyze the advantage of above-mentioned quadrature field, situation when making a concrete analysis of the magnetic field axis line parallel of magnetic field of permanent magnet axis and drive coil 114 below by Fig. 8 B or overlap.
As shown in Figure 8 B, permanent magnet is distributed in the top of drive coil 114A, make the longitudinal axis of permanent magnet internal magnetic field lines direction and drive coil iron core 115A (its point to as shown in Figure 8 B along paper up or down) direction parallel, now drive coil iron core 115A longitudinal axis direction and driving shaft longitudinal axis are parallel to each other.So, the axis being parallel of the magnetic field axis that drive coil 114A produces and magnetic field of permanent magnet, the magnetic field that drive coil 114A produces and magnetic field of permanent magnet interfere with each other, and the magnetic field size and Orientation that drive coil 114A produces changes with the size and Orientation change of the electric current of drive coil 114A.The mutual interference in two magnetic fields makes the magnetic field of air gap between permanent magnet and drive coil 114A change in time and is deformity, thus the magnetic density B in air gap distorts, and causes the magnetic density B being positioned at driving shaft longitudinal axis both sides asymmetric.Size due to magnetic density B affects the size of electromagnetic force, therefore, the magnetic field of permanent magnet of mutual interference and the magnetic field of drive coil 114A can cause on the permanent magnet of the left and right sides by force unbalance, thus make the transducer of cleaning appliance also produce translation in addition to the rotation movement, and then cause noise and the poor efficiency of cleaning appliance.In addition, the magnetic field force of magnetic pole is also there is between the magnetic pole of drive coil iron core 115A and the magnetic pole of permanent magnet, this magnetic field force can be that attraction also can for repulsive force, known according to electromagnetic theory, square being inversely proportional to of the distance of this magnetic field force and permanent magnet and drive coil iron core 115A.As shown in Figure 8 B, left side permanent magnet 116A under the effect of magnetic field force F4 to left movement, the distance of permanent magnet and drive coil iron core 115A becomes large, magnetic field force F4 diminishes, right side permanent magnet 117A under the effect of magnetic field force F3 to left movement, the distance of permanent magnet and drive coil iron core 115A diminishes, and magnetic field force F3 becomes large.Obviously, the change of F4 and F3 can cause the component on the longitudinal axis direction being parallel to drive coil iron core 115A, and this component is alternating quantity, thus cause cleaning appliance transducer along the vibration in the longitudinal axis direction of drive coil iron core 115A, noise and energy loss.
In addition, the alternating magnetic field that drive coil 114A produces constantly carries out to permanent magnet 116A, 117A the magnetization process increasing magnetic and degaussing, and as shown in Figure 8 B, the permanent magnet 116A on the left side is in demagnetizing state, and the permanent magnet 117A on the right is in increasing magnetic state.In the increasing magnetic and demagnetization process of permanent magnet 116A, 117A, because hysteresis effect permanent magnet 116A, 117A can produce magnetic hysteresis loss, this kind of magnetic hysteresis loss makes energy run off, thus the efficiency of cleaning appliance is reduced.And, this increases magnetic and demagnetizing effect proposes requirements at the higher level to the material of permanent magnet 116A, 117A and performance, known according to electromagnetic theory, when the magnetic field intensity of degaussing is greater than the coercive force of permanent magnet, permanent magnet will be lost magnetism by demagnetizing, therefore, in the magnetic field axis of drive coil 114A generation and the application of magnetic field of permanent magnet axis being parallel or overlap, the coercive force of permanent magnet is greater than the magnetic field intensity of drive coil 114A generation, thus constrains the selection of permanent magnet 116A, 117A and drive coil 114A.
With magnetic field of permanent magnet axis being parallel or be overlapped in drive coil 114A magnetic field axis arranged compared with, in described example of the present invention, magnetic field of permanent magnet axis vertical take-off can overcome above-mentioned shortcoming in the layout of drive coil 114 magnetic field axis, thus cleaning appliance can be made to move more reposefully, without impact, and have higher efficiency, expand the range of choice of permanent magnet 116,117 and drive coil 114 simultaneously.
Preferred permanent magnet 116,117 can adopt length, width and height to be respectively the Nd-Fe-B permanent magnet of 5 ~ 30mm, 2mm ~ 20mm, 1mm ~ 10mm.
As shown in Fig. 4,6 and 8A, the electric current passed through in hypothesis driven coil secondary winding 128 is I1, and the sense of current as shown in Figure 8 A.Then left side permanent magnet 116 is subject to perpendicular to the outside reaction force of paper, and right side permanent magnet 117 is subject to perpendicular to the inside reaction force of paper.When drive coil 114 is not energized, left side transducer elastic component 122 is parallel with the magnetic line of force direction of left side permanent magnet 116 inside along the axis in transmission arm 125 direction on the left of transducer elastic component fixture 124 directional transducer.Equally, right hand transducer elastic component 123 is parallel with the magnetic line of force direction of right side permanent magnet 117 inside along the axis in transmission arm 126 direction on the right side of transducer elastic component fixture 124 directional transducer.In this example, left side, right hand transducer elastic component 122,123 are parallel to each other and are in same plane.
Left side permanent magnet 116 and left side transducer elastic component 122 is made to form a vibrational system by said structure in the present invention, when left side permanent magnet 116 is the reaction force perpendicular to paper is outside by direction, left side permanent magnet 116 tends to move perpendicular to paper outward direction.Left side permanent magnet 116 is subject to the constraint of left side transducer elastic component 122.When left side transducer elastic component 122 is perpendicular to paper inwardly or the power of outward direction or component or along paper direction during the effect of moment up or down, left side transducer elastic component 122 produces around the flexural deformation being axis with left side transducer elastic component 122 and transducer elastic component fixture 124 line of demarcation being subject to close to transmission arm on the left of transducer 125 region.In this example, preferably left side transducer elastic component 122 is arranged so that the corner corresponding with the amount of deflection of left side transducer elastic component 122 is less than 10 °.Therefore, left side permanent magnet 116 is when being subject to the reaction force perpendicular to paper outward direction, and left side permanent magnet 116 is along meeting the flex motion rule of left side transducer elastic component 122 perpendicular to paper outward direction and move.Also can be understood as, left side permanent magnet 116 moves along perpendicular to paper outward direction, the direction of motion and drive coil iron core 115 longitudinal axis direction less parallel, that is, its angle is greater than 170 ° and is less than or equal to 180 ° or for being greater than-10 ° and being less than or equal to 0 °.
Similarly, when right side permanent magnet 117 is subject to the reaction force perpendicular to paper is inside, right side permanent magnet 117 tends to along moving perpendicular to the direction that paper is inside.Right side permanent magnet 117 is subject to the constraint of right hand transducer elastic component 123.Right hand transducer elastic component 123 is perpendicular to paper inwardly or the power of outward direction or component or along paper direction during the effect of moment up or down, right hand transducer elastic component 123 produces around the flexural deformation being axis with right hand transducer elastic component 123 and transducer elastic component fixture 124 line of demarcation being subject to close to transmission arm on the right side of transducer 126 region.In this example, preferably right hand transducer elastic component 123 is arranged so that the corner corresponding with the amount of deflection of right hand transducer elastic component 123 is less than 10 °.Therefore, right side permanent magnet 117 is when being subject to along reaction force perpendicular to paper inward direction, and right side permanent magnet 117 is along meeting the flex motion rule of right hand transducer elastic component 123 perpendicular to paper inward direction and move.Also can be understood as, right side permanent magnet 117 moves along perpendicular to paper inward direction, the direction of motion and drive coil iron core 115 longitudinal axis direction are (namely, sensing edge is as shown in Figure 7 inside or outward direction perpendicular to paper) less parallel, that is, its angle is more than or equal to 180 ° and is less than 190 ° or for being more than or equal to 0 ° and being less than 10 °.
Obviously, when flowing through that shown in the electric current in drive coil 114 with Fig. 8 A, direction is contrary, the direction of motion of left side, right side permanent magnet 116,117 is reverse, left side permanent magnet 116 moves along perpendicular to paper inward direction, the direction of motion and drive coil iron core 115 longitudinal axis direction less parallel, its angle is more than or equal to 180 ° and is less than 190 ° or be more than or equal to 0 ° and be less than 10 °.Right side permanent magnet 117 moves along perpendicular to paper outward direction, the direction of motion and drive coil iron core 115 longitudinal axis direction less parallel, and its angle is greater than 170 ° and is less than or equal to 180 ° or for being greater than-10 ° and being less than or equal to 0 °.
In sum, when the secondary winding 128 of drive coil 114 is the alternating current of f0 by frequency, permanent magnet 116,117 is subject to the reaction force from drive coil 114 and moves, the direction of motion of left side, right side permanent magnet 116,117 and drive coil iron core 115 longitudinal axis direction less parallel, that is, its angle is for being greater than 170 ° and being less than 190 ° or be greater than-10 ° and be less than 10 °.Obviously, the permanent magnet distribution mode different from this example can also be adopted.
In another embodiment, as Fig. 9,10, shown in 11A, the first modification transducer is provided with four permanent magnets 216,217,218,219, and they are connected firmly on respective permanent magnet support 227,228,229,230.Permanent magnet support 227,228,229,230 is made up of high permeability material such as Armco iron or silicon steel sheet etc.This first modification transducer comprises: the first modification transducer permanent magnet 216,217,218,219; Permanent magnet support 229,230 on the right side of permanent magnet support 227,228, first modification transducer upper and lower part on the left of first modification transducer upper and lower part; On the left of first modification transducer, right side transmission arm 225,226; On the left of first modification transducer, right hand transducer elastic component 222,223; First modification transducer elastic component fixture 224; First modification transducer drive axle 211, these parts are connected firmly together.
In this example, first modification transducer upper left-hand permanent magnet 216 is being S pole towards the pole polarity in drive coil 114 direction, first modification transducer lower left side permanent magnet 217 is being S pole towards the pole polarity in drive coil 114 direction, first modification transducer upper right permanent magnet 219 is being N pole towards the pole polarity in drive coil 114 direction, and on the right side of the first modification transducer bottom, permanent magnet 218 is being N pole towards the pole polarity in drive coil 114 direction.First modification transducer permanent magnet 216,217,218,219 can move relative to the first transducer elastic component fixture 224.Certainly, the configuration of these permanent magnets can also have other a lot of schemes, such as right side permanent magnet 219 and 218 is being S pole towards the pole polarity in drive coil 114 direction, and left side permanent magnet 216 and 217 is being N pole towards the pole polarity in drive coil 114 direction, etc.
On the left of first modification transducer, transmission arm 225, first modification transducer upper left-hand permanent magnet support 227, first modification transducer lower left side permanent magnet support 228, first modification transducer upper left-hand permanent magnet 216, first modification transducer lower left side permanent magnet 217 connects firmly and the part be under left side transducer elastic component 222 is called the first modification transducer left lower part.On the right side of first modification transducer, on the right side of transmission arm 226, first modification transducer upper right permanent magnet support 229, first modification transducer bottom, on the right side of permanent magnet support 230, first modification transducer upper right permanent magnet 219, first modification transducer bottom, permanent magnet 218 connects firmly and the part be under right hand transducer elastic component 223 is called the first modification transducer lower right side part.There is at least one gap in the first modification transducer left lower part and the first modification transducer lower right side part, this gap can allow permanent magnet (such as permanent magnet 217) on the left of at least one first modification transducer to move relative to an opposite polarity right side permanent magnet (such as permanent magnet 218).
In this example, there are two gaps 234,235 in the first modification transducer left lower part and the first modification transducer lower right side part.These gaps make permanent magnet on the left of at least one (such as permanent magnet 217) and at least one opposite polarity right side permanent magnet (such as permanent magnet 218) separate.Also can be understood as, four moveable permanent magnets are distributed with in driving shaft longitudinal axis both sides, these four moveable permanent magnets are towards on drive coil 114 direction, and on the left of at least one, the pole polarity of permanent magnet (such as permanent magnet 217) is contrary with the pole polarity of right side permanent magnet (such as permanent magnet 218).On the left of at least one permanent magnet (such as permanent magnet 217) and an opposite polarity right side permanent magnet (such as permanent magnet 218) separate, also can be regarded as, on the left of at least one, permanent magnet (such as permanent magnet 217) can move relative to opposite polarity right side permanent magnet (such as permanent magnet 218).
Figure 11 A is the combination schematic diagram of the first modification transducer and modified drive coil; Figure 11 B is drive coil secondary winding current direction shown in Figure 11 A and permanent magnet Impact direction key diagram.Different from the modes of emplacement of the permanent magnet shown in Fig. 1-7.As shown in Figure 11 A, 11B, because the first modification transducer permanent magnet support 227,228,229,230 is made up of high permeability material, therefore, the magnetic resistance of the first modification transducer permanent magnet support is very little, and most of magnetic flux of permanent magnet circulates in permanent magnet support.According to magnetic field theory, first modification transducer upper left-hand permanent magnet support 227 forms N magnetic pole in the plane towards gap 234, first modification transducer upper right permanent magnet support 229 forms S magnetic pole in the plane towards gap 234, thus the first modification transducer upper left-hand permanent magnet support 227 produces magnetic field force towards the N magnetic pole in gap 234 and the first modification transducer upper right permanent magnet support 229 towards the S magnetic pole in gap 234, this magnetic field force is attraction, and the magnetic line of force length that the characteristic of this magnetic field force shows as in maintenance gap 234 is the shortest.
Due to foozle or other interference, cause magnetic field force F6, F8 and F5 as seen in figs. 11 a and 11b, F7 size unequal, thus destroy the state of cleaning appliance transducer stress balance, the translation trend that uneven stressed transducer will produce except rotary motion, thus off-energy produce noise, out-of-balance force can be revised effectively in the gap 234,235 in this example.Suppose F8 > F7, F6 > F5, then the inside power be subject on the right side of cleaning appliance transducer is greater than the outside power be subject on the left of cleaning appliance transducer.First modification transducer upper right permanent magnet support 229 inwardly moves relative to the first modification transducer upper left-hand permanent magnet support 227, make the magnetic line of force length in gap 234, it is the shortest that the magnetic field force be present in gap 234 produced due to the first modification transducer upper right permanent magnet support 229 and the first modification transducer upper left-hand permanent magnet support 227 tends to maintain the magnetic line of force, therefore this magnetic field force is by the motion that causes of the inside out-of-balance force of resistance, produce and act on the outside magnetic field force of the first modification transducer upper right permanent magnet support 229, thus the motion that the magnetic field force correction out-of-balance force in gap 234 produces, namely to tend to the relative position of maintenance first modification transducer upper right permanent magnet support 229 and the first modification transducer upper left-hand permanent magnet support 227 constant for this magnetic field force, make the motion of cleaning appliance more steady.The size of the magnetic field force in gap 234 determines its responsiveness to out-of-balance force, and know according to electromagnetic theory, in gap 234, the effective volume in magnetic field affects the size of magnetic field force, alternatively the size of the effect length magnetic field force in gap 234.Meanwhile, the magnetic field intensity of permanent magnet also affects the size of magnetic field force.
Drawn by lot of experiments, the length in gap 234 is preferably between 0.1mm ~ 2mm, it is further preferred that gap is 0.2mm ~ 1mm.Gap 235 has identical function, and principle is identical.Similarly, as Fig. 4, 5, shown in 7 and 13, upper gap 131 between transducer 130 left lower part and this transducer lower right side part and the lower gap 129 between transducer 130 left lower part and this transducer lower right side part have the function identical with gap 235 with gap 234, and second the upper gap 332 between modification transducer left lower part and this transducer lower right side part and the lower gap 333 between the second modification transducer left lower part and this transducer lower right side part there is the function identical with gap 235 with gap 234, be not described in detail in this.
As shown in Figure 11 B, with to the analysis classes of transducer 130 seemingly, in the first modification transducer modified drive coil 214, be distributed with four moveable permanent magnets 216,217,218 and 219 relative to driving shaft longitudinal axis both sides, and the right side permanent magnet (such as permanent magnet 218) that on the left of at least one, permanent magnet (such as permanent magnet 217) is contrary with pole polarity is separate.Two removable and separate permanent magnets 217,218 are contrary towards the respective polarity on modified drive coil 214 direction; These two removable and separate permanent magnets 217,218 are subject to the reaction force from modified drive coil 214 and move, the direction of motion of described left side, right side permanent magnet 217,218 and modified drive iron-core coil 215 longitudinal axis direction are (namely, sensing edge is as shown in Figure 11 A inside or outward direction perpendicular to paper) less parallel, that is, its angle is for being greater than 170 ° and being less than 190 ° or be greater than-10 ° and be less than 10 °.
Certainly, the position distribution of transducer permanent magnet can also have multiple, such as, can by the position of permanent magnet in transducer 130 and the first modification transducer and quantity combination in any, these schemes all do not exceed the scope of the invention.
As shown in Fig. 4,5 and 7, preferred transducer elastic component 122,123 comprises Rectangular Elastic part or flap-type elastic component.
As shown in Fig. 4,5 and 7, in the example of transducer 130, left side, right hand transducer elastic component 122,123 are cuboid metallic elastic sheet, left side, right hand transducer elastic component 122,123 two ends are fixed on the left of transducer elastic component fixture 124 and transducer respectively, right side transmission arm 125,126, left side transducer elastic component 122 accepts motion from left side permanent magnet 116 and energy, and right hand transducer elastic component 123 accepts motion from right side permanent magnet 117 and energy.In this example, transducer elastic component fixture 124 is fixed in handle 1, on the left of transducer, right side transmission arm 125,126 can relative to transducer elastic component fixture 124 meet elastic component flexure rule motion.On the left of transducer, right side transmission arm 125,126 to be fixed on above transducer elastic component 122,123 and and driving shaft 111 connect firmly, cleaning element 3 connects firmly on cleaning element carrier 2, and cleaning assemblies is removably connected on driving shaft 111.One of ordinary skill in the art can design rational driving shaft 111 and cleaning assemblies structure, make driving shaft 111 effectively drive cleaning assemblies.When removable and separate permanent magnet 116,117 is subject to the reaction force acts from drive coil 114 and moves, transducer elastic component 122,123 moves with the motion of permanent magnet 116,117, transducer elastic component 122,123 constantly absorbs energy and releases energy, when the response frequency of transducer elastic component 122,123 and the power frequency of drive coil 114 are close, the energy conversion efficiency of transducer significantly improves, and whole electric toothbrush is in high efficiency state.Motion due to left routine permanent magnet 116 is subject to the constraint of left side transducer elastic component 122, when left side permanent magnet 116 is subject to the reaction force being approximately parallel to drive coil iron core 115 longitudinal axis, on the left of transducer transmission arm 125 and left side permanent magnet 116 around with the line of demarcation of transducer elastic component fixture 124 and left side transducer elastic component 122 for axis does bending motion, equally, on the right side of transducer transmission arm 126 and right side permanent magnet 117 around with the line of demarcation of transducer elastic component fixture 124 and right hand transducer elastic component 123 for axis does bending motion.Driving shaft 111 longitudinal axis is relative to transducer elastic component 122,123 and transducer elastic component fixture 124 line of demarcation less parallel, preferably, its angle is more than or equal to 0 ° and is less than 15 °, and the longitudinal axis of driving shaft 111 to left side, the beeline of right hand transducer elastic component 122,123 is equal.
In described example, the reaction force size approximately equal that left side permanent magnet 116 and right side permanent magnet 117 are subject to, preferred amplitude difference is within 10%, direction is approximate contrary, angular separation is within 10 °, the bending resistant section coefficient of left side transducer elastic component 122 and right hand transducer elastic component 123 and length approximately equal, preferred amplitude difference is within 10%, so the amount of deflection amplitude approximately equal of the amount of deflection of left side transducer elastic component 122 and right hand transducer elastic component 123, difference in magnitude is within 10%, and respective amount of deflection direction is contrary.Therefore, driving shaft 111 is subject to the effect of the equilibrant force of approximate alternation, and this alternation equilibrant force produces alternating torque, forms driving shaft 111 and back and forth, efficiently rotates at a high speed.Equally, the first modification transducer and the second modification transducer also can obtain similar effects.
According to the present invention, the number of transducer elastic component can be multiple.As shown in figure 14, three transducer elastic components 401,402,403 can be configured, wherein two transducer elastic components, such as transducer elastic component 401 and 402, between angle be 2 α, 0 ° of < α < 90 °, the angle in these two transducer elastic components 401 and 402 between any one and the 3rd transducer elastic component 403 is δ, δ=(360 ° of-2 α)/2.
As Fig. 4, 5, shown in 7 and 14, by reasonable disposition elastic component 401, 402, the bending resistant section coefficient of 403 and length, can make on the left of transducer, the power size that right side transmission arm acts on driving shaft is similar to, preferably make on the left of transducer, right side transmission arm 125, 126 act on the difference in magnitude of the power on driving shaft within 10%, the direction of power is contrary, and left side, right side transmission arm 125, the moment size of 126 pairs of driving shaft longitudinal axis is similar to, preferably make on the left of transducer, right side transmission arm 125, 126 relative to the difference in magnitude of the moment of driving shaft longitudinal axis within 10%, the direction of moment is identical, thus realize driving shaft drive cleaning element carrier 2 and cleaning element 3 steady, reciprocating rotation at high speed.
Figure 13 shows the second modification transducer, the difference of the first modification transducer shown in the transducer shown in itself and Fig. 7, Fig. 9 is, in the embodiment shown in Fig. 7,9, single flexible fastening piece 124 or 224 is set, compared with the distance of the axis of transmission arm on the right side of transmission arm 125 or 225, transducer on the left of transducer 126 or 226 distance driving shaft 111 or 211, single transducer elastic component fixture 124 is closer to the axis of driving shaft 111; And in the example in figure 13, be provided with two flexible fastening pieces, be respectively left side transducer flexible fastening piece 324 and right hand transducer flexible fastening piece 325, compare apart from the distance of the axis of driving shaft 311 with transmission arm 327 on the right side of transmission arm on the left of transducer 326 and transducer respectively, these two flexible fastening pieces 324,325 are further from the axis of driving shaft 311.Certainly, no matter several transducer elastic component fixture is set, the common trait of these structures is: at least two transducer elastic components are distributed in the longitudinal axis both sides of driving shaft 111,211 or 311, and one end of the permanent magnet and transducer elastic component that are positioned at the longitudinal axis homonymy of driving shaft 111,211 or 311 is linked.Transducer elastic component transmission arm can relative movement relative to corresponding transducer elastic component fixture, has a pair transducer elastic component transmission arm in driving shaft longitudinal axis both sides at least.The direction of motion angle of described a pair transducer elastic component transmission arm is greater than 90 ° and is less than 270 °.Accordingly, as long as the shape of the shape of appropriate design permanent magnet, position and transducer elastic component, position, and the size of the counter-bending section factor of elastic component and anti-torsion section factor just can realize the efficient motion of cleaning device, and the range of choice of transducer elastic component physical dimension can be expanded.

Claims (11)

1. personal cleanliness's care implement, comprising:
Handle, it comprises handle casing, the power unit in order to provide electric power to the various piece of described personal cleanliness's care implement is equipped with in described handle casing inside, in order to control the various mode of operation of described personal cleanliness's care implement and the described unlatching of personal cleanliness's care implement or the control section of closedown, in order to start or close the triggering part of described personal cleanliness's care implement running and the electric energy of input be converted to the driver of mechanical energy output, described driver comprises transducer, drive coil, be arranged on the drive coil iron core in described drive coil, for supporting support on the right side of the driver left side brackets of described driver and driver,
Cleaning assemblies, it comprises cleaning element carrier and is distributed in the cleaning element on cleaning element carrier, and cleaning assemblies and driving shaft are removably linked together;
It is characterized in that, described transducer comprises the driving shaft inserting described cleaning assemblies, it is left that at least one is anchored on described driver, the transducer elastic component fixture of right side support, at least two are arranged in the permanent magnet of the left and right sides relative to described driving shaft longitudinal axis, for connecting firmly the corresponding permanent magnet support of described permanent magnet, connect firmly with described permanent magnet support and the left side connected firmly with described driving shaft, right hand transducer transmission arm and at least two are arranged on left side transducer elastic component and the right hand transducer elastic component of the described driving shaft longitudinal axis left and right sides, a described left side, one end of right hand transducer elastic component connects firmly with described transducer elastic component fixture respectively, a described left side, the other end of right hand transducer elastic component connects firmly with corresponding transducer transmission arm respectively, wherein, described left and right side permanent magnet is separate, described side permanent magnet is being S pole or N pole towards the pole polarity in drive coil direction, described opposite side permanent magnet is contrary with the pole polarity of described side permanent magnet towards the pole polarity in drive coil direction, described left and right side permanent magnet is configured such that their internal magnetic field lines direction and the angle in drive coil iron core longitudinal axis direction are greater than 45 ° respectively and are less than 135 °, and left and right side permanent magnet can move relative to described transducer elastic component fixture, when drive coil is the alternating current of f0 by frequency, the direction of motion of left and right side permanent magnet and drive coil iron core longitudinal axis direction less parallel, namely the angle of the two is greater than 170 ° and is less than 190 ° or be greater than-10 ° and be less than 10 °.
2. personal cleanliness's care implement as claimed in claim 1, it is characterized in that, described left and right side permanent magnet is configured such that their internal magnetic field lines direction and the angle in described drive coil iron core longitudinal axis direction are 90 °.
3. personal cleanliness's care implement as claimed in claim 1, it is characterized in that, transmission arm on the left of described transducer, to connect firmly about the left side permanent magnet of driving shaft longitudinal axis and this transmission arm homonymy and corresponding permanent magnet support and the part be under about the left side transducer elastic component of driving shaft longitudinal axis and described transmission arm homonymy is defined as transducer left lower part, transmission arm on the right side of described transducer, right side permanent magnet and corresponding permanent magnet support connect firmly and the lower part being in right hand transducer elastic component is defined as transducer lower right side part, at least one gap is there is between described transducer left lower part and described transducer lower right side part, exist in this gap and be enough to compensate because out-of-balance force causes the magnetic field force of transducer translation, and allow at least one permanent magnet to move relative to another permanent magnet opposite polarity.
4. personal cleanliness's care implement as claimed in claim 3, it is characterized in that, the gap length between described transducer left lower part and described transducer lower right side part is 0.1mm to 2mm.
5. personal cleanliness's care implement as claimed in claim 3, it is characterized in that, the gap length between described transducer left lower part and described transducer lower right side part is 0.2mm to 1mm.
6. personal cleanliness's care implement as claimed any one in claims 1 to 3, it is characterized in that, described left and right side permanent magnet is cuboid Nd-Fe-B permanent magnet, and it is long is 5mm to 30mm, and wide is 2mm to 20mm, and height is 1mm to 10mm.
7. personal cleanliness's care implement as claimed any one in claims 1 to 3, it is characterized in that, described transducer is provided with four permanent magnets, described left side permanent magnet and right side permanent magnet are configured such that the reaction force size approximately equal that they are subject to, difference in magnitude is within 10%, direction is approximate contrary, and angular separation is within 10 °.
8. personal cleanliness's care implement as claimed any one in claims 1 to 3, it is characterized in that, described left and right side transducer elastic component comprises Rectangular Elastic part or flap-type elastic component.
9. personal cleanliness's care implement as claimed any one in claims 1 to 3, it is characterized in that, described transducer is provided with two transducer elastic components, and they are distributed in the left and right sides of described driving shaft longitudinal axis symmetrically, and the angle of described two transducer elastic components is 180 °; Wherein, described left side transducer elastic component and described right hand transducer elastic component are set to their bending resistant section coefficient and length approximately equal, difference in magnitude is within 10%, cause the amount of deflection of left side transducer elastic component and the amount of deflection amplitude approximately equal of right hand transducer elastic component, difference in magnitude is within 10%, and respective amount of deflection direction is contrary.
10. personal cleanliness's care implement as claimed any one in claims 1 to 3, it is characterized in that, described transducer is provided with three transducer elastic components, angle wherein between two transducer elastic components is 2 α, 0 ° of < α < 90 °, angle in these two transducer elastic components between any one and the 3rd transducer elastic component is δ, δ=(360 ° of-2 α)/2.
11. personal cleanliness's care implements as claimed any one in claims 1 to 3, is characterized in that, the described apparatus for personal cleanliness's nursing comprises electric toothbrush, electric shaver, electronic razor, Electrical Shower.
CN201510042433.8A 2015-01-28 2015-01-28 Personal cleaning and care appliance Active CN104617732B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510042433.8A CN104617732B (en) 2015-01-28 2015-01-28 Personal cleaning and care appliance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510042433.8A CN104617732B (en) 2015-01-28 2015-01-28 Personal cleaning and care appliance

Publications (2)

Publication Number Publication Date
CN104617732A true CN104617732A (en) 2015-05-13
CN104617732B CN104617732B (en) 2017-04-12

Family

ID=53152062

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510042433.8A Active CN104617732B (en) 2015-01-28 2015-01-28 Personal cleaning and care appliance

Country Status (1)

Country Link
CN (1) CN104617732B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105119459A (en) * 2015-07-30 2015-12-02 北京希澈科技有限公司 Motor applied to electric toothbrush
CN105227036A (en) * 2015-10-29 2016-01-06 上海携福电器有限公司 For the conditioned circuit of the electric cleaning care appliance of individual
WO2016119136A1 (en) * 2015-01-28 2016-08-04 上海携福电器有限公司 Implement for personal cleaning and care
CN106175957A (en) * 2016-06-30 2016-12-07 上海携福电器有限公司 Fixed structure for electric cleaning apparatus driving means
WO2017070887A1 (en) * 2015-10-29 2017-05-04 上海携福电器有限公司 Adjustable circuit for personal electric cleaning care appliance
CN107394982A (en) * 2017-09-21 2017-11-24 东莞市力博得电子科技有限公司 DC micromotor
WO2018098838A1 (en) * 2016-12-02 2018-06-07 上海携福电器有限公司 Electrical appliance for cleaning and providing care, pressure alarming method using the appliance, and pressure alarming apparatus
CN109549732A (en) * 2019-01-18 2019-04-02 广州皓醒湾科技有限公司 Electric toothbrush driving frequency control method and its control system
CN111818828A (en) * 2017-12-28 2020-10-23 皇家飞利浦有限公司 Dual motion cleaning with mechanical snap-in fitting
CN112821706A (en) * 2021-01-18 2021-05-18 深圳市泓之发机电有限公司 Driving motor
WO2023071604A1 (en) * 2021-10-27 2023-05-04 科西嘉(上海)智能科技有限公司 Cleaning care appliance and transducing apparatus thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115603539A (en) 2021-06-28 2023-01-13 上海携福电器有限公司（Cn） Cleaning and nursing tool and energy conversion device and pressure alarm mechanism thereof

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06319248A (en) * 1993-04-28 1994-11-15 Tokin Corp Actuator for chucking device
JP2003308761A (en) * 2002-04-12 2003-10-31 Toshiba Corp Electromagnetic actuator
CN1703171A (en) * 2002-05-03 2005-11-30 皇家飞利浦电子股份有限公司 Apparatus for converting side-to-side driving motion to rotational motion with a spring assembly and system for tuning the spring assembly
CN101336096A (en) * 2006-01-27 2008-12-31 布劳恩股份有限公司 Electric toothbrush
CN101615836A (en) * 2008-06-25 2009-12-30 三美电机株式会社 Driver and the electric toothbrush of using it
CN102111032A (en) * 2010-04-26 2011-06-29 王凤梅 High-frequency vibration motor for electric toothbrush
EP2374430A1 (en) * 2008-12-08 2011-10-12 Sunstar Inc. Linear actuator
CN102447370A (en) * 2010-10-13 2012-05-09 德昌电机(深圳)有限公司 Actuator, electric shearing device and electrical device
CN102545526A (en) * 2010-12-20 2012-07-04 德昌电机(深圳)有限公司 Actuator
CN202776618U (en) * 2012-09-06 2013-03-13 叶洪源 Resonance-based electric toothbrush
CN103889367A (en) * 2011-10-24 2014-06-25 皇家飞利浦有限公司 Vibration compensation system for power toothbrushes
CN204392053U (en) * 2015-01-28 2015-06-10 上海携福电器有限公司 Personal cleanliness's care implement

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06319248A (en) * 1993-04-28 1994-11-15 Tokin Corp Actuator for chucking device
JP2003308761A (en) * 2002-04-12 2003-10-31 Toshiba Corp Electromagnetic actuator
CN1703171A (en) * 2002-05-03 2005-11-30 皇家飞利浦电子股份有限公司 Apparatus for converting side-to-side driving motion to rotational motion with a spring assembly and system for tuning the spring assembly
CN101297775A (en) * 2002-05-03 2008-11-05 皇家飞利浦电子股份有限公司 Method for adjusting sympathetic vibration system spring elements
CN101336096A (en) * 2006-01-27 2008-12-31 布劳恩股份有限公司 Electric toothbrush
CN101615836A (en) * 2008-06-25 2009-12-30 三美电机株式会社 Driver and the electric toothbrush of using it
EP2374430A1 (en) * 2008-12-08 2011-10-12 Sunstar Inc. Linear actuator
CN102111032A (en) * 2010-04-26 2011-06-29 王凤梅 High-frequency vibration motor for electric toothbrush
CN102447370A (en) * 2010-10-13 2012-05-09 德昌电机(深圳)有限公司 Actuator, electric shearing device and electrical device
CN102545526A (en) * 2010-12-20 2012-07-04 德昌电机(深圳)有限公司 Actuator
CN103889367A (en) * 2011-10-24 2014-06-25 皇家飞利浦有限公司 Vibration compensation system for power toothbrushes
CN202776618U (en) * 2012-09-06 2013-03-13 叶洪源 Resonance-based electric toothbrush
CN204392053U (en) * 2015-01-28 2015-06-10 上海携福电器有限公司 Personal cleanliness's care implement

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016119136A1 (en) * 2015-01-28 2016-08-04 上海携福电器有限公司 Implement for personal cleaning and care
US10463460B2 (en) 2015-01-28 2019-11-05 Shanghai Shift Electrics Co., Ltd. Personal cleaning care appliance
CN105119459B (en) * 2015-07-30 2019-04-05 北京希澈科技有限公司 A kind of motor applied in electric toothbrush
CN105119459A (en) * 2015-07-30 2015-12-02 北京希澈科技有限公司 Motor applied to electric toothbrush
CN105227036A (en) * 2015-10-29 2016-01-06 上海携福电器有限公司 For the conditioned circuit of the electric cleaning care appliance of individual
WO2017070887A1 (en) * 2015-10-29 2017-05-04 上海携福电器有限公司 Adjustable circuit for personal electric cleaning care appliance
US10418928B2 (en) 2015-10-29 2019-09-17 Shanghai Shift Electrics Co., Ltd. Adjustable circuit for personal electric cleaning care appliance
CN106175957A (en) * 2016-06-30 2016-12-07 上海携福电器有限公司 Fixed structure for electric cleaning apparatus driving means
WO2018000448A1 (en) * 2016-06-30 2018-01-04 上海携福电器有限公司 Fixing structure for use in driver apparatus of electric cleaning appliance
US10786338B2 (en) 2016-06-30 2020-09-29 Shanghai Shift Electrics Co., Ltd. Fixing structure for use in driver apparatus of electric cleaning appliance
US11234803B2 (en) 2016-12-02 2022-02-01 Shanghai Shift Electrics Co., Ltd. Electric cleaning and care appliance, pressure alarming method and apparatus for the appliance
WO2018098838A1 (en) * 2016-12-02 2018-06-07 上海携福电器有限公司 Electrical appliance for cleaning and providing care, pressure alarming method using the appliance, and pressure alarming apparatus
EP3542754A4 (en) * 2016-12-02 2019-11-13 Shanghai Shift Electrics Co., Ltd. Electrical appliance for cleaning and providing care, pressure alarming method using the appliance, and pressure alarming apparatus
CN107394982A (en) * 2017-09-21 2017-11-24 东莞市力博得电子科技有限公司 DC micromotor
CN107394982B (en) * 2017-09-21 2023-10-24 东莞市力博得电子科技有限公司 Miniature DC motor
CN111818828A (en) * 2017-12-28 2020-10-23 皇家飞利浦有限公司 Dual motion cleaning with mechanical snap-in fitting
CN109549732B (en) * 2019-01-18 2020-06-02 广州皓醒湾科技有限公司 Electric toothbrush driving frequency control method and control system thereof
CN109549732A (en) * 2019-01-18 2019-04-02 广州皓醒湾科技有限公司 Electric toothbrush driving frequency control method and its control system
CN112821706A (en) * 2021-01-18 2021-05-18 深圳市泓之发机电有限公司 Driving motor
CN112821706B (en) * 2021-01-18 2022-03-25 深圳市泓之发机电有限公司 Driving motor
WO2023071604A1 (en) * 2021-10-27 2023-05-04 科西嘉(上海)智能科技有限公司 Cleaning care appliance and transducing apparatus thereof

Also Published As

Publication number Publication date
CN104617732B (en) 2017-04-12

Similar Documents

Publication Publication Date Title
CN104617732A (en) Personal cleaning and care appliance
EP3252935B1 (en) Implement for personal cleaning and care
CN204392053U (en) Personal cleanliness&#39;s care implement
CN105207440A (en) Magnetic balance guiding linear vibration motor
CN110350753B (en) Vibration motor
US10786338B2 (en) Fixing structure for use in driver apparatus of electric cleaning appliance
CN110012398B (en) Balanced vibration system
JP7221986B2 (en) Oscillating motors and electrical devices
CN104617704A (en) Cleaning device
US9601969B2 (en) Inhibiting rocking of loads driven by plural levers
WO2015134373A1 (en) Levered loudspeakers
CN107171526B (en) Linear vibration motor
WO2020232737A1 (en) Vibration motor
CN105703593A (en) Linear vibration motor
CN106953493A (en) A kind of brushless ac vibrates micro machine
CN205509817U (en) Linear vibrating motor
CN102761226B (en) Linear vibration motor
CN204442083U (en) A kind of cleaning device
WO2016199848A1 (en) Non-contact power generator
CN209982305U (en) Electromagnetic vibrator
CN205092750U (en) Magnetic balance direction linear vibration motor
KR20200110715A (en) vertical vibrator using double-magnet
CN220067186U (en) Linear vibration mechanism and linear motor
KR101674967B1 (en) Vibration actuator
CN220067185U (en) Linear vibration mechanism and linear motor

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant