CN1327975C

CN1327975C - Electromagnetic actuator

Info

Publication number: CN1327975C
Application number: CNB031511066A
Authority: CN
Inventors: 白木学; 关口直树; 陆龙斌
Original assignee: Shicoh Motor Shanghai Co Ltd
Current assignee: Shicoh Motor Shanghai Co Ltd
Priority date: 2003-09-22
Filing date: 2003-09-22
Publication date: 2007-07-25
Anticipated expiration: 2023-09-22
Also published as: CN1600452A

Abstract

The present invention relates to an electromagnetic actuator which comprises a cover shell, a coil component and a vibratory component. The present invention is characterized in that the coil component is composed of a base, an inner side terminal, an outer side terminal and a coil, wherein the base is composed of a base plate and a hollow pipe, the inner side terminal is arranged on the bottom part in the hollow pipe, the outer side terminal is arranged on the periphery of the bottom part of the base, and the coil is sheathed outside the hollow pipe of the base; the vibratory component is sheathed on the coil component and is composed of a pole sheet, a magnet, a ring opening, a spring, a spring cover and division copper, wherein both pole ends of the magnet are respectively attracted with the inner surface of the ring opening and the end surface of the pole sheet, the ring opening is combined with the magnet and is then sheathed on the base, both sides of the outer wall of the ring opening are provided with a plurality of ear parts, the spring is sheathed on the ear parts of the ring opening, the spring cover is covered on the spring, and the division copper is arranged on the spring. Because the vibratory component is provided with an adjusting mechanism for adjusting resonant frequency, the present invention can suppress the deviation of the resonant frequency. An adjusting rod of the adjusting mechanism has simple structure and is suitable for mobile telephones with simultaneous vibration and sound and automatic production.

Description

The electromagnetic type actuator

Technical field

The present invention relates to a kind of actuator, relate in particular to a kind of being arranged in mobile phone and the beeper, the call signal of mobile phone or beeper is notified user's electromagnetic type actuator by mode of vibration.

Background technology

Prior art electromagnetic type actuator once was disclosed in WO99/39843 and indicated, and saw also shown in Figure 1ly, and this electromagnetic type actuator 10 comprises shell 11, vibrating reed 12, went up vibrating reed 13, vibrating reed 14, collar extension 15, magnetite 16, coil 17, flange 18 down; Shell 11 madial walls from top to bottom successively parallel interval be provided with vibrating reed 12, on vibrating reed 13, following vibrating reed 14; Collar extension 15 is arranged between the upper and lower vibrating reed 13,14; Magnetite 16 is provided with in the groove of collar extension 15; Coil 17 is arranged between the trench wall and magnetite 16 of collar extension 15; In the shell madial wall of last vibrating reed 13 bottoms, be embedded with flange 18.When actuator is worked, by imposing low-frequency current, generate an electromagnetic field to coil 17, through the effect of upper and lower vibrating reed 13,14, collar extension 15 begins vibration again; If apply high frequency electric to coil 17, make vibrating reed 12 begin vibration, produce ultrasonic wave; By the flange 18 that shell 11 madial walls are provided with, the upper and lower that is restricting collar extension 15 to vibration.

The shortcoming that above-mentioned prior art electromagnetic type actuator exists in actual production is used is:

1, because therefore the standard deviation that the size of the weight of collar extension 15 and upper and lower oscillating plate 13,14 exists in the prior art electromagnetic type actuator also can produce deviation in the resonant frequency that is produced, the deviation that this resonant frequency produces can not be regulated correction;

2, owing to the structural limitations of prior art electromagnetic type actuator, make it on automatic assembly line, to weld assembling automatically, so efficiency of assembling is low.

Summary of the invention

The objective of the invention is to solve the shortcoming that existing electromagnetic type actuator can not be regulated resonant frequency and assembling inconvenience, thereby provide a kind of electromagnetic type actuator of regulating resonant frequency, it is not only rational in infrastructure, and can in manufacture process, adjust resonant frequency, can can be welded on the printed base plate automatically at automatic assembly line, thereby enhance productivity.

The object of the present invention is achieved like this:

A kind of electromagnetic type actuator comprises: case, be arranged on the coil component in the case, be arranged on the vibrating mass on the coil component; Be characterized in:

Described coil component is made up of pedestal, inner terminal, outer terminal, coil; Described pedestal is made of substrate and the hollow pipe that is arranged in the substrate; Described inner terminal is arranged on the hollow pipe inner bottom part; Described outer terminal is arranged on the periphery of base bottom; Described coil is set in outside the hollow pipe of pedestal;

Described vibrating mass is set on the coil component, is made up of pole piece, magnetite, collar extension, spring, spring cup, oscillator; Described magnetite is circular plate type, and its two poles of the earth end face is connected with the end face adhesive of collar extension inner face and pole piece respectively; Described collar extension is set on the pedestal after in conjunction with magnetite, and the circular outer wall both sides of this collar extension are provided with several ears; Described spring housing is in the ear of collar extension; Described spring cup cover cap is on spring; Described oscillator is arranged on the spring.

In above-mentioned electromagnetic type actuator, wherein, described outer terminal that is arranged on base bottom and inner terminal be positioned at the conplane bottom surface of substrate on.

In above-mentioned electromagnetic type actuator, wherein, be interval with a fore shaft and a notch that several connect outer terminal on the substrate periphery of described this pedestal; The hollow tube wall of pedestal is provided with an open slot; Substrate periphery at pedestal is provided with several spring adjusting rod grooves; The substrate periphery of pedestal evenly is interval with several spring cages.

In above-mentioned electromagnetic type actuator, wherein, the periphery of described outer terminal is provided with several latch hooks, and the fore shaft on the pedestal that the substrate periphery portion of each latch hook and pedestal is provided with is suitable; Periphery in outer terminal also vertically is provided with a bonding pad, and the notch that this bonding pad passes on the substrate of pedestal is erected on substrate.

In above-mentioned electromagnetic type actuator, wherein, described coil one end is connected with the inner face of inner terminal by the open slot on the hollow pipe of pedestal; The described coil other end is connected with bonding pad on being erected at substrate.

In above-mentioned electromagnetic type actuator, wherein, described spring is connected and composed by inner ring and outer ring, and the internal diameter periphery of inner ring is provided with several notches; The outer ring evenly is interval with several adjusting rods that extends downwards; This spring adjusting rod runs through the groove of pedestal, and passes from base bottom.

In above-mentioned electromagnetic type actuator, wherein, described spring adjusting rod moves in groove, and moving the amplitude range of regulating is 8 ° to 10 °.

In above-mentioned electromagnetic type actuator, wherein, described spring cup top periphery is inwardly evenly extended several pressing plates at interval, and each pressing plate and pairing each spring cage that is located on the pedestal are suitable.

In above-mentioned electromagnetic type actuator, wherein, the outer wall of described oscillator is provided with several through holes; Oscillator bottom is provided with the notch of several boss by spring and is arranged on the collar extension.

Electromagnetic type actuator of the present invention makes it compared with prior art owing to adopted above-mentioned technical scheme, has following advantage and good effect:

1, electromagnetic type actuator of the present invention can be adjusted resonant frequency in assembling process owing to be provided with the governor motion of regulating resonant frequency in vibrating mass, so can suppress the deviation of resonant frequency, obtains bigger vibratory output.

2, electromagnetic type actuator of the present invention is adjusted resonant frequency and only needed mobile adjusting rod because the adjusting rod that is provided with in vibrating mass is the extension of spring end, and is easy and simple to handle, simple in structure.

3, electromagnetic type actuator of the present invention is arranged on the axis hole inner bottom part of pedestal because inner terminal is rounded; Outer terminal is made as the circle shape, is arranged on the periphery of bottom of pedestal, constitutes the bottom surface of electromagnetic type actuator; And be positioned at the conplane bottom surface of substrate on; When process automatic tin soldering groove on automatic assembly line, can weld automatically with printed base plate.

4, electromagnetic type actuator of the present invention it also be highly suitable in vibration and the simultaneous mobile phone of sound, and effect is also very good.

Description of drawings

By the description of a following embodiment to electromagnetic type actuator of the present invention, can further understand purpose of the present invention, specific structural features and advantage in conjunction with its accompanying drawing.Wherein, accompanying drawing is:

Fig. 1 is the structural representation of prior art electromagnetic type actuator.

Fig. 2 is the structural representation of electromagnetic type actuator of the present invention.

Fig. 3 is the decomposition texture schematic diagram of electromagnetic type actuator of the present invention.

The specific embodiment

See also Fig. 2, Fig. 3, they are the integral body of electromagnetic type actuator of the present invention and the structural representation of decomposition.Electromagnetic type actuator of the present invention is that a kind of interior call signal with mobile phone of mobile phone that is arranged on reaches a kind of device of notifying the carrier by mode of vibration.Electromagnetic type actuator of the present invention comprises case 21, is arranged on the coil component 22 of bottom in the case 21, is arranged on the vibrating mass 23 on the coil component 22.

Coil component 22 comprises: parts such as pedestal 221, inner terminal 222, outer terminal 223, coil 224.Pedestal 221 is to be made by resin material, and this pedestal 221 is made of with the vertical hollow pipe 2212 that is provided with of central part at substrate 2211 substrate 2211; Be provided with the groove 2213 of three mounting spring adjusting rods at substrate 2211 peripheries of pedestal 221, this groove 2213 is made as deep-slotted chip breaker; Be interval with three fore shaft 2214 and notches 2215 that bonding pad is installed that connect outer terminal on substrate 2211 peripheries of this pedestal 221; Hollow pipe 2212 walls of pedestal 221 are provided with an open slot 22121; Hollow pipe 2212 bottom periphery 22122 of pedestal 221 are stairstepping; Substrate 2211 peripheries of pedestal 221 evenly are interval with three spring cages 2216, and the end face of this spring cage 2216 is provided with pressing plate groove 22161, and the lateral surface of this spring cage 2216 is provided with snap close 22162.Inner terminal 222 is made by metal material, and inner terminal 222 is rounded, and the periphery of this circle inner terminal 222 is provided with flanging 2221; The stairstepping periphery 22122 that inner terminal 222 is arranged on hollow pipe 2212 bottoms of hollow pipe 2212 inner bottom parts of pedestal 221 and pedestal 221 matches.Outer terminal 223 is made by metal material, and outer terminal 223 is made as the circle shape, and the periphery of this circular outside terminal 223 is provided with several latch hooks 2231, and the fore shaft 2214 on the pedestal 221 that substrate 2211 peripheries of each latch hook 2231 and pedestal 221 are provided with is suitable; Periphery in outer terminal 223 also vertically is provided with a bonding pad 2232, and bonding pad 2232 passes the notch 2215 that bonding pad is installed on the substrate 2211 of pedestal 221 and is erected on the substrate 2211; This outer terminal 223 is arranged on the periphery of the bottom of pedestal 221, with the bottom surface of inner terminal 222, substrate 2211 formation electromagnetic type actuators, and on same baseplane.Loop coil 224 is enclosed within the outer wall at the hollow pipe 2212 of pedestal 221; These coil 224 1 ends 2241 are connected with the inner face of inner terminal 222 by the open slot 22121 on the hollow pipe 2212 of pedestal 221; Coil 224 other ends 2242 are connected with bonding pad 2232 on being erected at substrate 2211.

Vibrating mass 23 comprises: parts such as pole piece 231, magnetite 232, collar extension 233, spring 234, spring cup 235, oscillator 236.Circular plate type magnetite 232 is magnetized in both ends of the surface, wherein the extreme face of an end N fit be fixed in the collar extension 233 central part, and the extreme face of other end S is fixedlyed connected with pole piece 231 applyings.Collar extension 233 is arranged on the pedestal 221, and the circular outer wall both sides of this collar extension 233 are provided with several ears 2331.Spring 234 is leaf springs made from metal material, and spring 234 is enclosed within the outer wall 2332 of collar extension, and is shelved in the ear 2331 of collar extension 233; Spring 234 is connected and composed by inner ring 2341 and outer ring 2342, and the internal diameter periphery of spring 234 inner rings 2341 evenly is interval with three notches 2344, and spring 234 outer rings 2342 evenly are interval with three adjusting rods 2343 that extend downwards; This spring adjusting rod 2343 runs through the groove 2213 of pedestal 221 and passes from pedestal 221 bottoms, spring adjusting rod 2343 can slide in groove 2213, its amplitude of accommodation in deep-slotted chip breaker 2213 is: 8 ° to 10 ° of removable adjustings, thus can adjust resonant frequency by sliding spring adjusting rod 2343.Spring cup 235 cover caps are on the inner ring 2341 of spring 234, and annular metal spring covers 235 top periphery and inwardly evenly extends three pressing plates 2351 at interval, and pressing plate 2351 is suitable with the pressing plate groove 22161 that is located at pedestal 221 spring cages 2216 end faces; Be provided with fore shaft 2352 on the spring cup 235 of the side that is positioned at spring cup pressing plate 2351, fore shaft 2352 is suitable with the fore shaft 22162 that is located at pedestal 221 spring cages 2216 sides.The high specific gravity material is powder sintered makes by tungsten etc. for oscillator 236, it is nested with on spring inner ring 2341, oscillator 236 bottoms are provided with suitable 2361, three boss 2361 of three boss of the internal diameter perimeter notches 2344 of spring inner ring 2341 and are embedded in the notch 2344 of spring inner ring 2341; For alleviating the weight of oscillator 236, the outer wall of oscillator 236 is provided with three holes 2362.

Case 21 is nested with outside pedestal 221, after matching with the outermost perimembranous of pedestal 221, just covers whole from top.Case 21 bottoms are made of pedestal 221, outer terminal 223, inner terminal 222, and three spring adjusting rods 2343 pass from three grooves 2213 of pedestal.For guaranteeing the amplitude of up-down vibration, there is the space between the top of collar extension 233 and the case 21; There is the space between the below of pole piece 231 and the pedestal 221; Also there is the space between the below of the ear 2331 of collar extension 233 and the outer terminal 223.

Electromagnetic type actuator of the present invention is a kind of device that is arranged on the action of starting of oscillation on mobile phone printed base plate usefulness, the electromagnetic type actuator the overall weight formed by spring constant, oscillator 236 and collar extension 233, magnetite 232 and the pole piece 231 of spring 234 of vibrational system constituted mechanical vibrational system; The resonant frequency of vibrational system is by the total quality decision of the spring constant of spring 234 and oscillator 236 etc.After being applied on outer terminal 223 and the inner terminal 222 from single-frequency alternating current of printed base plate supply, carry out the instrumentation vibratory output again, in case the power frequency that applies changes, vibratory output also just changes; Equally, as the slip of stirring spring adjusting rod 2343, the resonant frequency of vibrational system also changes; Variable quantity according to spring adjusting rod 2343 slides can partly compensate the standard deviation of oscillator 236 weight and the standard deviation of spring 234; Thereby behind the alternating current that applies a single-frequency, limit instrumentation vibratory output, limit sliding spring adjusting rod 2343 just can be adjusted to vibrational system on the resonant frequency point that sets.

The operation principle of electromagnetic type actuator of the present invention is:

By applying alternating current to coil from inner terminal 222 and outer terminal 223, electromagnetic force just begins effect, spring adjusting rod 2343 slides to the circumference angle direction along groove 2213, then spring 234 outer rings begin rotation, and the oscillator 236 and the collar extension 233 that are fixed on simultaneously on the inner ring 2341 also begin rotation; Because three boss 2361 of inner ring 2341 and oscillator 236 match, three boss 2361 of oscillator 236 embed inner rings 2341, so oscillator 236 firmly has been fixed on the gyratory directions, and oscillator 236 will the above-below direction vibration; Thereby can adjust resonant frequency by sliding spring adjusting rod 2343, and can suppress the deviation of resonant frequency, the frequency of the alternating current on making resonant frequency and being applied to coil 224 reaches consistent, makes the electromagnetic type actuator that is arranged in the mobile phone that the call signal of mobile phone is reached notice mobile phone carrier by mode of vibration thus.

In sum, electromagnetic type actuator of the present invention so can suppress the deviation of resonant frequency, obtains bigger vibratory output owing to be provided with the governor motion of regulating resonant frequency in vibrating mass; Simultaneously, only need mobile adjusting rod owing to adjust resonant frequency, therefore simple in structure and easy and simple to handle; The present invention can be applicable in vibration and the simultaneous mobile phone of sound, and be convenient to automated production, therefore very practicality.

Claims

1. electromagnetic type actuator comprises: case (21), be arranged on the coil component (22) in the case (21), be arranged on the vibrating mass (23) on the coil component (22); It is characterized in that:

Described coil component (22) is made up of pedestal (221), inner terminal (222), outer terminal (223), coil (224); Described pedestal (221) is made of substrate (2211) and the hollow pipe (2212) that is arranged in the substrate (2211); Substrate (2211) periphery in pedestal (221) is provided with several spring adjusting rod grooves (2213); Described inner terminal (222) is arranged on hollow pipe (2212) inner bottom part; Described outer terminal (223) is arranged on the periphery of pedestal (221) bottom; Described coil (224) is set in outside the hollow pipe (2212) of pedestal (221);

Described vibrating mass (23) is set on the coil component (22), is made up of pole piece (231), magnetite (232), collar extension (233), spring (234), spring cup (235), oscillator (236); Described magnetite (232) is circular plate type, and its two poles of the earth end face is connected with the end face adhesive of collar extension (233) inner face and pole piece (231) respectively; Described collar extension (233) is set on the pedestal (221) after in conjunction with magnetite (232), and the circular outer wall both sides of this collar extension (233) are provided with several ears (2331); Described spring (234) is enclosed within the ear (2331) of collar extension (233); Described spring cup (235) cover cap is on spring (234); Described oscillator (236) is arranged on the spring (234);

Described spring (234) is connected and composed by inner ring (2341) and outer ring (2342), and the internal diameter periphery of inner ring (2341) is provided with several notches (2344); Outer ring (2342) evenly is interval with several adjusting rods (2343) that extends downwards; This spring adjusting rod (2343) runs through the groove (2213) of pedestal (221), and passes from pedestal (221) bottom.

2, electromagnetic type actuator according to claim 1 is characterized in that: described be arranged on the outer terminal (223) of pedestal (221) bottom and inner terminal (222) is positioned at and the conplane bottom surface of substrate (2211) on.

3, electromagnetic type actuator according to claim 1 is characterized in that: be interval with a fore shaft (2214) and a notch (2215) that several connect outer terminal on substrate (2211) periphery of described this pedestal (221); The hollow pipe of pedestal 221 (2212) wall is provided with an open slot (22121); Substrate (2211) periphery of pedestal (221) evenly is interval with several spring cages (2216).

4, according to claim 1 or 3 described electromagnetic type actuators, it is characterized in that: the periphery of described outboard end (223) is provided with several latch hooks (2231), and the fore shaft (2214) on the pedestal (221) that substrate (2211) periphery of each latch hook (2231) and pedestal (221) is provided with is suitable; Periphery in outer terminal (223) also vertically is provided with a bonding pad (2232), and the notch (2215) that this bonding pad (2232) passes on the substrate (2211) of pedestal (221) is erected on substrate (2211).

5, electromagnetic type actuator according to claim 1 is characterized in that: described coil (224) one ends (2241) are connected with the inner face of inner terminal (222) by the open slot (22121) on the hollow pipe (2212) of pedestal (221); Described coil (224) other end (2242) is connected with bonding pad (2232) on being erected at substrate (2211).

6, electromagnetic type actuator according to claim 1 is characterized in that: described spring adjusting rod (2343) moves in groove (2213), and moving the amplitude range of regulating is 8 ° to 10 °.

7, according to claim 1 or 3 described electromagnetic type actuators, it is characterized in that: described spring cup (235) top periphery is inwardly evenly extended several pressing plates (2351) at interval, and each pressing plate (2351) is suitable with pairing each spring cage (2216) that is located on the pedestal (221).

8, electromagnetic type actuator according to claim 1 is characterized in that: the outer wall of described oscillator (236) is provided with several through holes (2362); Oscillator (236) bottom is provided with the notch (2344) of several boss (2361) by spring and is arranged on the collar extension (233).