JP3469173B2 - Flat type vibration generator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small wireless device and the like.
Calls such as pagers that transmit calls by vibration
Output device, a signal receiver for the hearing impaired,
To reach the human body etc.
A massage that requires a massage effect or light vibration
Suitable for surge devices. [0002] 2. Description of the Related Art Conventionally, this type of vibration is generated.
Among the devices, the pager is a small radio calling device
It has become a typical thing, especially of the pager
The penetration rate is high. Therefore, in the following, the pager is
Explain to my heart. Conventionally, as a pager, a telephone call
The purpose of notifying the pager carrier of the
The pager's internal receiver receives the paging signal.
Beep is sounded by the internal sound generator.
I was trying to make it. However, the sounding device calls a warning sound.
Since the signal sounds no matter where, it has a bad influence on the surroundings
In places where the surrounding environment is noisy,
You will not hear the beep and you will know the phone call
Did not. [0005] As a countermeasure, in recent pagers, call
Warning not only by sound but also by vibration
Beep, and a warning signal of either sound or vibration
The issue can be selected arbitrarily. A typical vibration generator of this type of pager
Will be described below. [0007] A conventional pager vibration generator is
On the end face of a dial gap type cylindrical coreless motor
The protruding rotating shaft is made of high specific heavy metal such as tungsten.
The resulting eccentric vibrating weight (what is called a weight)
It is formed by attaching with adhesive or caulking means
ing. The eccentric vibrating weight causes a partial circular motion to cause eccentric vibration
The shape seen from the rotation axis direction is a regular disc shape
Be semicircular or fan-shaped so that they do not form
I have. [0008] Vibration using such a cylindrical coreless motor
Fix the generator inside the pager body and rotate the motor
Doing so will cause the eccentric vibrating weight to rotate in a partial circular motion,
The vibration caused by the centrifugal force generated at that time is
Propagate to the body. Therefore, those who wear pagers
The vibration is transmitted to the
Can be The mainstream of the vibration generator in the pager is
Although it has the structure described above, it has some disadvantages.
You. The drawback is that, first, the end face of the cylindrical coreless motor
Eccentric vibrating weight
Must be installed, which is very expensive. Big
The eccentric vibrating weight is made of high specific heavy metal
Need to be. Tungs is a typical high-specification heavy metal
And the tungsten is very expensive.
ing. Need to attach eccentric vibrating weight to rotating shaft
In addition, whether the eccentric vibrating weight comes off the rotating shaft
Quality control also requires a lot of time to assemble,
As a result, vibrations configured using a cylindrical coreless motor
Motion generators have the disadvantage of being expensive. [0010] Further, a cylindrical core constituting the above-mentioned vibration generator is provided.
Ares motors are conventionally as large as 10 mm in diameter.
However, these days, the diameter is 6mm, 7mm
Because it has always been small, its production is very troublesome
And the yield is poor, and a lot of time is spent on quality control.
As a result, there is a disadvantage that the cost becomes very high. In addition, like this
Very small circles such as 6mm and 7mm in diameter
The outer dimensions of the cylindrical coreless motor are only 1 mm
Just making it small makes it very difficult to make. [0011] In addition, recent pagers increasingly require more design.
It is becoming increasingly important, and it is small and
There are also more handheld types. Or put it on your watch
It has come to have a ja function. [0012] Such a card-type pager or a wristwatch
In the case of a meter-type pager, its thickness is very thin.
Generator using a conventional cylindrical coreless motor
There is no space to build in. Therefore, these pages
The loudspeaker uses a piezoelectric buzzer, etc.
Function. However, as described above,
With the sounding device, we had to consider the design
However, it has the disadvantages of the past, and measures for that
Was sought. Therefore, the present inventors have disclosed in Japanese Patent Application Laid-Open
US Patent No. 2,290,153 discloses a flat type vibration generator.
1 '. Hereinafter, this flat type vibration generator 1 '
Will be described with reference to FIG. In addition, common with the present invention
The description of the part to be performed will be described in the part of the embodiment of the present invention.
And the same thing is marked with the same code,
Sign. In FIG. 12, 7 is a rotation axis, 9 'is a case,
10 'is a bracket, 13'-1 and 13'-2 are brass
18'-1, 18'-2 are lead wires, 29 'is pre-wired.
Insulating substrate with printed wiring pattern, 11 'is flat
The vibration generating device main body 28 'is composed of six commutator pieces.
The rhombus, 38 and 39 indicate bearings. This flat type vibration generator 1 'is shown in FIG.
The known four-pole flat field poles, three-phase three-coil
Coreless flat electric motor in equidistant axial gap motor
Three flat coreless armature coils 3-1 of the armature 2 ...
.Remove one armature coil 3-3 out of 3-3
Formed armature for flat coreless eccentric vibration shown in FIG.
6 '. Such flat type
Process of forming coreless eccentric vibration armature 6 '
Will be described below. Coalescing in Three-Phase Axial Air-Gap Motor
, Three armature coils 3-1,.
3-3 is molded with resin 4 as shown in FIG.
It is formed in the shape of a regular disk. Here, just one
When the armature coil 3-3 is removed, as shown in FIG.
Hole 5 is formed in the portion of the above, and there is no armature coil 3-3.
However, the coreless flat armature is
A flat coreless eccentric vibration armature 6'-1 is configured. Obedience
Energizes the flat coreless eccentric vibration armature 6'-1
Then, the flat coreless eccentric vibration armature 6'-1 is
Generates flat type vibration that generates vibration because it rotates eccentrically
A device is obtained. In this case, two armature coils 3
-1 and 3-2 are for the case of the Y-type connection method as described later.
The purpose is to prevent points that do not generate rotational torque
At the connection point between the two armature coils 3-1 and 3-2.
It is necessary to connect to a fixed commutator piece to make an electrical short
is there. According to the above flat vibration generator,
In contrast to this, the rotating shaft 7 is
It is not necessary to protrude from the end face.
Extremely thick because it is not necessary to attach an eccentric vibrating weight
Can be formed thinly, so that card type and watch type
You can get what is suitable for a pager. And cheap
become. Here, in order to obtain a larger vibration,
The inventors of the present application have described the above flat coreless eccentric vibration electric machine.
To allow the through hole 5 of the child 6'-1 to function as an eccentric vibrating weight
Then, solder 8 is inserted as shown in FIG.
An eccentric vibration armature 6'-2 was formed. This oscillator 6 '
As a result of using -2, no vibration can be obtained.
Was. Therefore, the flat coreless eccentric shown in FIG.
Two armature coils 3-1 and 3 of the vibration armature 6'-1
-2 with an eccentric vibrating weight in the middle empty space (cavity in the frame)
In order to function as shown in FIG.
To form a flat coreless eccentric vibration armature 6'-3
Was. Use this flat type coreless eccentric vibration armature 6'-3
The coreless eccentric vibration armature 6'-2
Even more vibration was obtained, but still aimed
Large vibration could not be obtained. Then, the excess resin 4 is scraped off and removed.
Of the flat coreless eccentric vibration of the shape shown in FIG.
An armature 6 'was formed. For flat type coreless eccentric vibration
According to the flat vibration generator 1 'using the armature 6',
The flat type coreless eccentric vibration armatures 6'-1, 6'-
Vibrations greater than 2 were obtained. Moreover, with the eccentric metal weight
Since there is an advantage that the solder 8 is unnecessary, it is manufactured at low cost.
I can do this. According to the prototype sample, the armature
As for the files 3-1 and 3-2, those having a wire diameter of 0.1 mm
When a wire with a thickness of 0.6 mm was used
The flow value is 100 mA and the vibration (G) is 0.08 G
Was. The rotation speed was 6,000 rpm. The above flat type coreless eccentric vibration electric machine
Solder 8 was formed by embedding solder 8 in the location shown in FIG.
Flat having flat type coreless eccentric vibration armature 6'-4
When using a type vibration generator, the above flat type coreless
.., 6'-3.
Vibration larger than the flat type vibration generator used
I have. Another conventional example is a coreless armature coil
Japanese Patent Application Laid-Open No. 4-36847 discloses an example using
Something can be seen. To explain this,
Is a single-phase energized system,
Point is zero.
No longer. Therefore, the dead point where the torque becomes zero
A third armature coil is provided to eliminate the problem.
Without the third armature coil, this motor would rotate
Because it is not possible. First and second armature coils 2
Since only the armature coils are in the in-phase position,
Sometimes can not rotate. The above-mentioned flat type vibration generator 1 'and the like
It is useful because it can be formed thin and small. These biases
The outer dimensions of the flat vibration generator 1 ′ and the like have an axial thickness.
Ultra-thin, only 3 mm in diameter and 20 mm in diameter
Are also small. Therefore, like a watch pager
Use directly close to the skin of the human body even if the vibration amount is small
If you can feel it, call it and
Can fully achieve the purpose. However, card ties
Pagers, etc., are used in direct contact with the skin.
Therefore, a larger vibration amount is required. In the above-mentioned single-phase energized flat vibration motor,
Means that the first and second armature coils have the same size
And the third armature core
Il must place the first and second armature coils concentrically.
Mass production is difficult. Besides, three electric machines
The child coil can increase the number of windings to gain torque.
Does not come, and as a result, large torque cannot be obtained.
It cannot actually be used for mobile phones
No. Moreover, in the case of the single-phase flat vibration motor,
Are the first and second armature coils and the third armature coil.
Has to be wound to a different size,
It is difficult to mass-produce. So very annoying
And the field poles (permanent magnets) used are complex
Configuration must be adopted. The reason is that
Having no startup processing means has a dead point
It is nothing but a single-phase motor. Therefore, the world
To form substantially non-magnetic poles other than magnetic poles (permanent magnets)
And separate field poles (permanent magnets)
A complex configuration that does not exist. Follow
Complex, expensive and high torque
Can not be used, and it has no practical value.
I don't see any customizations. There are various other disadvantages here
Then, the details are omitted. [Problems to be solved by the invention] The present invention has been made based on such a problem.
With this, a large vibration is obtained compared to the conventional one, and the card
Type and wristwatch type pager, etc.
An extremely useful product that can be formed inexpensively.
It is an object to obtain a vibration generator. [0026] SUMMARY OF THE INVENTION The object of the present invention is as follows.
N-pole and S-pole magnetic poles so that adjacent magnetic poles are different polesTo
4 in totalFixed 4 poles (15)
And brushes (13-1, 13-2)
And faces the field poles via an axial gap.
Eccentrically rotating air-core type armature coil group
Type coreless eccentric vibration armature and an electrically connected armature
Axial space as rotor with wire commutator (28)
In the gap type flat vibration generator, the flat core
Armatures for eccentric vibration are three armatures with different phases
Coil groups (3-1, 3-2, 3-3) are arranged in three phases
So that the phases are shifted in the circumferential direction and
It is formed in an eccentric shape that does not become a
Position facing the armature coil (3-2) located in the middle
The other two armature coils (3-1 and 3-3)
The effective conductor portion (3
a) and (3a ') are positioned so that the armature core
Other remaining within the range where the file (3-2) is located.
The torque by two armature coils (3-1 and 3-3)
The two armature coils (3
-1 and 3-3) contribute to the generated torque.
a) and (3a ') are configured to add weight,
The three armature coil groups (3-1, 3-2, 3-3)
The effective conductors (3a) and (3a ') are in mechanical angle, respectively.
Armature cores that are arranged with a 90 degree opening angle and are adjacent
That the iles are arranged 30 degrees in the circumferential direction
One terminal of each of the three armature coils is electrically
Common connection, the other terminal is connected to each predetermined commutator piece
Was itIt is characterized by. [0027] [0028] [0029] [0030] According to the present invention, the positive and negative power sources are electrically connected to each other.
Connected brush and sliding commutator in a predetermined direction
Energize the armature coil group to generate torque
The armature for eccentric vibration moves in a partial circular motion in a predetermined direction.
Eccentric rotation. Due to the eccentric rotation of this armature for eccentric vibration
The centrifugal force caused by the radial and circumferential eccentric amounts
Since it propagates to the flat vibration generator main body, the flat vibration
Vibration is applied to a device equipped with a raw device, for example, the pager body.
The pager carrier has a vibrating call.
And let you know.Three armature coil groups (3
-1, 3-2, 3-3) are the effective conductor portions (3
a) and (3a ′) are mechanical angles having an opening angle of 90 degrees.
And the armature coil adjacent to it is 30 degrees in the circumferential direction
Each of the three armature coils
Are electrically connected in common, and the other terminal is
Each armature coil is connected to a predetermined commutator piece,
A point at which no rotational torque is generated can be prevented, and
One structure is simple and a large rotating torque can be obtained. [0032] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS.
The magnetic poles of the N and S poles so that
Four-pole field pole 1 formed with 2P (P is 2) poles
5 as a stator and brushes 13-1, 13-
2, facing the field poles via an air gap in the axial direction
And consists of a group of air-core type armature coils that rotate eccentrically
Flat type coreless eccentric vibration armature and electric
With a commutator 28 connected to the
In the gap type flat vibration generator, the flat core
Armatures for eccentric vibration are three armatures with different phases
The coil groups 3-1,..., 3-3 are arranged in a three-phase arrangement.
Phase shifted in the circumferential direction and superimposed and viewed from the axial direction
Formed in an eccentric shape that does not become a perfect circular plate, and in the middle
At the position facing the armature coil 3-2 located at
One of each of the two armature coils 3-1 and 3-3
Effective conductor portions 3a and 3a 'contributing to the generated torque
The armature coil 3-1 is located
The other two armature coils 3-1
3-3.
To the generated torque of the three armature coils 3-1 and 3-3.
So that the weight due to the effective conductor portions 3a and 3a '
An embodiment of the configured flat vibration generator will be described.
You. Incidentally, in the following second embodiment and the following, the first embodiment
Many examples, drawings and explanations overlap, so
With reference to the description of the first embodiment,
In the following two embodiments, an electric motor for flat coreless eccentric vibration
The explanation will focus on the child. The armature used in the present invention
The coils 3-1,..., 3-3 are armature coils 3-
1, ..., 3-3 are arranged so as to overlap doubly.
Therefore, it is used for the above-mentioned flat type vibration generator 1 '.
Armature coils 3-1,..., 3-3 thicker than
Formed thinly. [0033] [First Embodiment] FIG. 1 shows a four-pole field magnet.
The three air-core type armature coils 3-1,.
The armature is shifted in phase in the circumferential direction so that
The coils 3-1,..., 3-3 are in the axial direction with respect to each other.
Does not form a perfect circular plate when viewed from the axial direction of the double overlap
Flat coreless eccentric vibration armature 6 formed in eccentric shape
-1 faces the field pole 15 via an axial gap.
Axial flattened flat type vibration generator
FIG. 2 is an exploded perspective view of the apparatus 1-1, and FIG.
FIG. 1 is a longitudinal sectional view of the flat type vibration generator 1-1.
Means that the rotating shaft does not protrude from the axial end surface.
It has a shape. Hereinafter, mainly in FIG. 1 and FIG.
A flat type vibration generator 1-1 according to an embodiment will be described. An axial thickness of 3 mm and a diameter of 20 mm
Open end of flat cup-shaped case 9 made of magnetic material
(The lower opening end on the drawing) is a disk-shaped
By closing with racket 10, flat type vibration generator main body
11 are formed. Case 9 and bracket 10
Also serves as a data yoke. The bracket 10 is made of an iron substrate.
It is formed using. On the upper surface of the bracket 10,
Power is supplied to the positive power terminal 14-1 and the negative power terminal 14-2.
Two power supplies as shown in FIG. 3 for pneumatic connection
Conductive patterns 12-1 and 12-2 are substantially annularly etched.
It is formed by means such as ching. The conductive pattern 12
-1, 12-2, a comb-shaped positive power supply terminal 14-1
13-1 connected to the negative side and the negative power supply terminal 14-2
The brush 13-2 connected to the side (see FIG. 4) is described later.
The commutator 28 is composed of six commutator pieces 28-1,.
8-6, and the commutator pieces 28-1,..., 2
The brushes 13-1 and 13 which are electrically slid with 8-6.
-2 is a positive power terminal 14-1 and a negative power terminal 14-
Two brushes 13-1, 13 electrically connected to two sides
-2 is the open angle width of one magnetic pole of the field pole 15 (9 in mechanical angle).
(0 degree, 180 degree electrical angle).
It is treated with an edge thin film (see FIG. 4). FIG. 4 shows a brush
13-1 (or 13-2) along the line X-X 'in FIG.
FIG. The side of the case 9 is cut out to form a through hole 16.
And the outer periphery of the bracket 10 facing the through hole 16.
The power supply lead wire is formed by extending radially outward.
A piece 17 is formed. After extending the mounting piece 17
The positive power terminal 14 is connected to the conductive patterns 12-1 and 12-2.
Lead 18-1 for connecting to the -1 side, negative power supply end
Solder the lead wire 18-2 for connecting to the terminal 14-2 side.
Electrical connection is made by reference numeral 19 (see FIG. 1). At the center of the bracket 10 is a fixed shaft with a flange.
A through-hole 21 for press-fitting and fixing the lower end of the base 20 is formed.
Until the flange 22 contacts the bracket 9 with the through hole 21.
Then, the fixed shaft 20 is press-fitted and fixed in the through hole 21 and the fixed shaft 2 is fixed.
0 is the center of the inner surface of the case 9 via the slider 23
Part is abutted and slid. The fixed shaft 20 has a flat type
Ares eccentric vibration armature 6-1 is rotatably supported
You. On the outer periphery of the fixed shaft 20, an oil-less metal
A cylindrical bearing 24 such as is rotatably mounted.
A cylindrical spacer 25 made of a non-magnetic metal is provided on the outer periphery of the bearing 24.
And mold the cylindrical resin 26 to make the flat commutator substrate 2
7 and three phase fan-shaped three-phase cores
, ..., 3-3 are connected to the substrate 27.
Flat coreless eccentric vibration armature 6 formed by fixing
-1 is rotatably supported. The flat coreless eccentric vibration armature 6-1
Magnetic poles adjacent to each other through the axial gap
, N and S poles were alternately magnetized along the circumferential direction
Field annular magnetic poles 15 arranged concentrically with fixed shaft 20
It is fixed to the upper surface of the bracket 10 by an adhesive.
You. Flat type coreless eccentric vibration armature 6-1
Indicates that the eccentric vibration armature 6-1 is rotated.
As a result, the armature 6-1 for eccentric vibration rotates eccentrically and vibrates.
To fallThree air-core typeArmature coil 3-1, ...
・ 3-3GroupThe phase is shifted in the circumferential direction so that it is superimposed twice
Of eccentric shape that does not become a perfect circular plate shape when viewed from the axial direction
Phase armature configuration (see FIGS. 1, 6 and 7).
See). The armature coils 3-1,.
Radial effective conductors 3a, 3a 'contribute to generated torque
However, the circumferential conductors 3b and 3c do not contribute to the generated torque.
It has become a bad thing. Moreover, each armature coil 3-1, ...
・ 3-3 is an efficient flat vibration generator 6-1
In order to form, the open angle between the effective conductors 3a and 3a '
Equal to the width of one magnetic pole of the field pole 15 (which is 4 poles)
A fan frame with a width of 90 degrees in machine angle.
ing. Thin flat core with good vibration efficiency
In order to obtain an armature 6-1 for eccentric vibration, an armature coil
3-1 and 3-3 are arranged in the circumferential direction so that they do not overlap each other.
The armature coils 3-1 and 3 are arranged at an interval of 0 degree.
Armature coil 3-2 at the intermediate position of -3
, Arranged in the order of armature coils 3-1,..., 3-3
Armature coils 3-1 and 3-3 and 3-2
Eccentric type that does not form a perfect circular plate shape when viewed from the overlapping axial direction
Shape. A more specific method will be described.
The coreless eccentric vibration armature 6-1 has different phases.
The three armature coil groups 3-1,..., 3-3
The other two air-core type armature coils 3-1 and 3-3 are arranged next to each other.
The armature coil at an intermediate position between the armature coils 3-1 and 3-3.
The slave coils 3-2 are superposed. This way, true
Other than the armature coil 3-2
Of the remaining two armature coils 3-1 and 3-3
Effective conductor portions 3a and 3a 'contributing to one generated torque
Is located at the center of gravity,
As a result, larger vibration can be obtained. So
Furthermore, within the range where the armature coil 3-2 is located,
The other two armature coils 3-1 and 3-3
The torque generated by the two
Effective to contribute to the generated torque of armature coils 3-1 and 3-3
Since the weight is added by the conductors 3a and 3a ', the center of gravity
Vibration due to larger centrifugal force due to weight increase in
There are benefits that occur. It is extremely easy to manufacture in mass production.
No. The flat coreless eccentric vibration armature 6-1
A commutator substrate 27 is fixed on the lower surface concentrically with the fixed shaft 20.
Is defined. The commutator substrate 27 is a printed circuit board or the like.
Brushes 13-1 and 13-2 slide on the lower surface of insulating substrate 29
Commutator pieces 28-1,..., 28-6
The flow element 28 is formed by etching means or the like (FIG. 5).
And FIG. 7). The commutator pieces 28-1 and 28-4 are formed on an insulating substrate.
29 is formed on the lower surface of the substrate 29 by etching means or the like.
Electrical connection with the
On the upper surface of the insulating substrate 29, as shown in FIG.
Printed wiring pattern 31 formed by
Therefore, commutator pieces 28-2 and 28-5, and 28-3 and 28-
6 and the armature coils 3-1,..., 3
-3 are electrically connected in common to each other,
The other terminal of the coil 3-1 is connected to the commutator piece 28-1,
The other terminal of the coil 3-2 is connected to the commutator piece 28-5.
The other terminal of the child coil 3-3 is electrically connected to the commutator piece 28-3.
It is connected by means such as soldering. The armature coils 3-1 and 3-3 are made of an adhesive.
To the commutator substrate 27 to form an armature coil 3-2.
Of the armature coils 3-1 and 3-3 by the adhesive
Flat coreless eccentric vibration machine by bonding to top surface
The child 6-1 is formed. The above-mentioned coreless flat armature 2 and eccentricity
Like vibration armatures 6 ', 6'-1, ..., 6'-4
In such a case, the armature coils 3-1,.
3 is the winding start terminal 32 of the armature coil 3-1,.
-As shown in Fig. 1 and Fig. 6 because it is located at the inner peripheral position of 3-3
,..., 3-3.
Along the top surface of the commutator substrate 27 (insulating substrate 29).
It is electrically connected to the lint wiring pattern 31 by soldering.
Must be connected to. By doing so, the flat type vibration generator
1 ', the thickness is as thin as 3 mm,
9 and eccentric vibration armatures 6 ', 6'-1,..., 6'
-4, the gap length in the axial direction between the upper surfaces is very small.
For forming windings of the armature coils 3-1,..., 3-3
Thin flat vibration even with only one electric wire
Not only can the raw device 1 'not be formed,
Rubbing with the source 9 may cause a disconnection. However, in the case of the present invention, the armature core
The files 3-1 and 3-3 are attached to the commutator substrate 27 with an adhesive.
The armature coil 3-2 is also bonded by an adhesive.
It is superposed and adhered on the upper surface of the armature coils 3-1 and 3-3.
Therefore, the winding start terminal 32 of the armature coils 3-1 and 3-3
Along the upper surfaces of the armature coils 3-1 and 3-3.
The printed circuit board on the upper surface of the sprinkle board 27 (insulating board 29)
Even when soldered to the turn 31, the armature coils 3-1, 3
-3 has an armature coil 3-2 on its upper surface, and an armature coil 3-2.
Case 3 and flat coreless eccentric vibration
Empty between the upper surfaces of the moving armature 6-1 (armature coil 3-2)
Since there is a gap, the winding of the armature coils 3-1 and 3-3 starts.
The terminal 32 does not become an obstacle. The problem here is that the armature coil 3-
Coreless armature coil disposed on the upper surface of 1, 3-3
This is the winding start terminal 32 of the rule 3-2. Therefore, in the case of the present invention, the above-mentioned flat core
In the case of the armature 6-1 for less eccentric vibration, at least
The armature core on the side where the axial distance is far from the field pole 15
The winding start terminal 32 inside the file 3-2 is connected to the field pole 1
Directly through the side closer to the axial distance with respect to 5, the above rectification
Commutator piece 28-5 of printed circuit board 27 and printed wiring turn
31 and electrically connected to the armature coil 3-
The winding start terminal 32 of 2 does not become an obstacle.
You. This is because the armature coil is located below the armature coil 3-2.
3-1 and 3-3 are arranged, and the armature coil
Of the armature coil 3-2 on the upper surfaces of the coils 3-1 and 3-3.
The winding start terminal 32 of the armature coil 3-2 is passed through by the thickness.
Gap between the upper surface of the armature coils 3-1 and 3-3
This is because it can be formed between the cases 9. A flat type vibration generator according to a first embodiment of the present invention.
According to 1-1, such as a battery of a pager incorporating the same.
Power is supplied to the power terminals 14-1, 14-2, the brush 13-1,
13-2, three armature coils 3 via the commutator 28, etc.
-1,..., 3-3 can obtain rotational torque in appropriate directions
Like figure5If you turn on electricity as shown in the left of Fleming
Generates torque that rotates in a predetermined direction according to the law of the hand
Therefore, flat coreless eccentric vibration around the fixed shaft 20
Armature 6-1 rotates in a predetermined direction. The flat coreless eccentric vibration armature 6-1 is
When rotating in a predetermined direction, a rotation torque in a predetermined direction is obtained sequentially.
Brushes 13-1 and 13-2 and commutator strips
The sliding position of 28-1,..., 28-6 changes,
A continuous rotation torque in a predetermined direction is generated. Flat here
The coreless eccentric vibration armature 6-1 is formed eccentrically.
Eccentric rotation with partial circular motion
You. Radius of the eccentric vibration armature 6-1 due to eccentric rotation
And the eccentricity in the circumferential direction becomes vibration, and the flat vibration generator
Propagating to the main body 11, the flat vibration generator 1-1
Vibration is transmitted to the device equipped with
That the pager carrier has a vibrating call.
I can let you know. According to the flat type vibration generator 1-1,
Very thin and small as described above, two
When describing the data of the prototype sample, one sample is
The armature coils 3-1 and 3-3 have a wire diameter of 0.11 mm.
Is formed by winding 45 turns, and the armature coil 3-2 is wire-connected.
It is formed by winding 35 turns of 0.11 mm diameter
At this time, compared with the conventional flat vibration generator 1 ', the current
The value is as small as 80 to 85 mA, and the vibration (G) is also 0.
It was very large at 1 to 0.12G. pager
According to the flat type vibration generator 1-1 used for
Ideally, there should be little vibration and large vibration can be obtained
Is very favorable. In addition, armature
Il 3-1 and 3-3 are better than armature coils 3-2.
It is formed thick immediately. Describe the data of another prototype sample
And the armature coils 3-1 and 3-3 have a wire diameter of 0.12 mm.
Armature coil 3-2
Is formed by winding a wire having a wire diameter of 0.11 mm for 45 turns.
However, as compared with the conventional flat vibration generator 1 ',
Although the current value was as small as 90 to 110 mA,
Some were kinky. However, the vibration (G) is between 0.13 and
A very large value of 0.15 G was obtained. In addition, armature coil
3-1 and 3-3 are slightly less than armature coil 3-2
Is formed to be thin. According to the flat type vibration generator 1-1 of the present invention.
Considering the purpose of obtaining a large vibration and
Armature coils 3-1, 3-3 and armature coils 3-2
Change the number of winding turns and change the thickness to flatten
The coreless eccentric vibration armature 6-1 is formed. This
As in the following embodiment, three armature coils
The coils are not wound under the same conditions,
The number and thickness may be variously changed. [0057] Second Embodiment FIG. 8 shows a flat type vibration according to a second embodiment of the present invention.
Type Coreless Eccentric Vibration Electric Machine for Generator 1-2
The perspective view of child 6-2 is shown. This flat vibration generator 1-
2 is a flat coreless eccentric vibration armature 6 of the first embodiment.
-1 to make the eccentric vibration armature 6-
1 is molded with resin 33 except for the commutator 28 and the like.
To form a flat coreless eccentric vibration armature 6-2.
It has become something. All other configurations and operations are flat type vibration
Since there is no difference from the generator 1-1, its detailed
Description is omitted. [0058] Third Embodiment FIG. 9 shows a flat type vibration according to a third embodiment of the present invention.
Flat coreless eccentric vibrating electric machine for generator 1-3
FIG. 6 is a side elevational view of the child 6-3 along the circumferential direction.
X-Y of the flat coreless eccentric vibration armature 6-1 in FIG.
Vibration efficiency is further increased when the wire is longitudinally sectioned along the circumferential direction.
Eccentric metal weights 34-1 and 34-2 to increase
It has been attached. Fig. 10 shows the generation of flat vibration
Flat coreless eccentric vibration armature 6 for device 1-3
3 shows a perspective view of FIG. In the case of this embodiment as well,
Only the Ales eccentric vibration armature 6-3 is different.
Therefore, a common part with the flat type vibration generator 1-1
The drawings and description are omitted. The flat type vibration generator 1 of the third embodiment.
Reference numeral 3 denotes the flat type coreless eccentric vibration armature 6-1.
Armature coil on the upper surface of the three armature coils 3-1 and 3-3
Utilizing that there is an empty space that does not overlap with
Eccentric vibrating weight 3 to increase vibration in the space.
4-1 and 34-2 for flat coreless eccentric vibration
An armature 6-3 is formed. For eccentricity
The vibrating weights 34-1 and 34-2 are flat coreless eccentric vibrations
To be placed on the outer periphery of the armature 6-3 for large centrifugal force
It is desirable that vibrations can be obtained. For this reason,
Eccentric vibrating weights 34-1 and 34-2 are arranged on the outer periphery of
I have. That is, for the flat type coreless eccentric vibration
In order not to increase the axial thickness of the armature 6-1,
In the radial direction that contributes to one generated torque of the coil 3-1
The other generation of the extended conductor portion 3a and the armature coil 3-3
Another radially extending conductor portion 3a 'contributing to the torque
In the radial direction that contributes to the torque generated by the armature coil 3-2
The eccentric metal is provided on the surface that does not overlap with the extended conductors 3a, 3a '.
Flat coreless eccentric with fixed weights 34-1 and 34-2
The vibration armature 6-3 is formed. In this case, vibration efficiency due to eccentricity is increased.
In order to change the specific gravity of the eccentric metal weights 34-1 and 34-2,
Or different amounts. The flat coreless eccentric vibrating armature 6-
In the case of 3, mold with resin to make it firm.
You may. Alternatively, an armature indicated by reference numeral 35 in FIG.
Metal for eccentricity in empty space between coils 3-1 and 3-3
A weight may be arranged, or the hollow portion 36 in the frame of the armature coil 3-2 may be disposed.
An eccentric metal weight may be provided at the inner position. [0064] [Fourth Embodiment] Alternatively, as shown in FIG.
Only the eccentric metal weight 34-1 or 34-2 is in the above position
Flat coreless eccentric vibration installed by appropriate design specifications
The armature 6-4 for vibration is formed, and the armature 6-4 for vibration is used.
Alternatively, the flat vibration generator 1-4 may be configured. still,
In FIG. 11, the eccentric metal weight 34-2 is connected to the armature coil 3-3.
It is arranged on the upper surface of. Also in this case, FIG.
The empty space between the armature coils 3-1 and 3-3 indicated by 5
Eccentric metal weights on the armature coil 3-2
An eccentric metal weight may be provided at a position inside the hollow portion 36 in the frame.
No. A flat type in which these eccentric metal weights 34-1 and the like are arranged
The coreless eccentric vibration armature 6-4 is also the flat core type
As with the armature 6-2 for eccentric vibration,
May be formed. [0065] According to the present invention, the conventional flat coreless
Compared to a flat type vibration generator using an eccentric vibration armature
Therefore, the thickness of the flat vibration generator in the axial direction should not be changed.
And each armature coil is thinner in the axial direction.
So that the armature coil group formed in
Using the formed three-phase flat coreless eccentric vibration armature
Is larger than the conventional flat type vibration generator.
Generates a great vibration force. Moreover, it greatly contributes to centrifugal force
Other armatures at the center of gravity where
Considering the torque and weight of the coil, it is practical
This is a flat type vibration generator that exhibits excellent effects.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a flat type vibration generator according to a first embodiment of the present invention. FIG. 2 is a longitudinal sectional view of the flat vibration generator. FIG. 3 is an explanatory plan view of a brush. FIG. 4 is a vertical sectional view taken along line XX ′ in FIG. 3; FIG. 5 shows a field pole, a flat coreless eccentric vibration armature,
It is a development view with a commutator and a brush. FIG. 6 is a plan view of a flat coreless eccentric vibration armature. FIG. 7 is a bottom view of the flat coreless eccentric vibration armature. FIG. 8 is a top perspective view of a flat coreless eccentric vibration armature constituting a flat vibration generator according to a second embodiment of the present invention. FIG. 9 is a longitudinal sectional view of a flat coreless eccentric vibration armature constituting a flat vibration generating device according to a third embodiment of the present invention, which is developed in a longitudinal direction in a circumferential direction. FIG. 10 is a top perspective view of the flat coreless eccentric vibration armature. FIG. 11 is a top perspective view of a flat coreless eccentric vibration armature constituting a flat vibration generator according to a fourth embodiment of the present invention. FIG. 12 is an exploded perspective view of a conventional flat type vibration generator. FIG. 13 is a perspective view of a coreless flat armature in a known axial air gap type electric motor having four poles of flat field poles and three-phase three-coils arranged uniformly. FIG. 14 is a top perspective view of a flat coreless eccentric vibration armature used in a conventional flat vibration generator. FIG. 15 is a top perspective view of a flat coreless eccentric vibration armature used in a conventional flat vibration generator. FIG. 16 is a top perspective view of a flat coreless eccentric vibration armature used in a conventional flat vibration generator. FIG. 17 is a top perspective view of a flat coreless eccentric vibration armature used in a conventional flat vibration generator. [Description of Signs] 1-1,..., 1-4, 1 ′ Flat-type vibration generating device 2 Coreless flat armature 3-1,..., 3-3, 3′-1,. 3'-3
Coreless armature coils 3a, 3a 'Effective conductors 3b, 3c contributing to generated torque Conductor 4 not contributing to generated torque Resin 5 Through-holes 6-1 ... 6-4, 6'-1, ... , 6'-4
Flat coreless eccentric vibration armature 7 Rotating shaft 8 Solder 9, 9 'Case 10, 10' Bracket 11 11 'Flat vibration generator main body 12-1, 12-2 Power supply conductive pattern 13-1, 13- 2, 13'-1, 13'-2 Brush 14-1 Positive power supply terminal 14-2 Negative power supply terminal 15 Field pole 16 Through hole 17 Power supply lead wire mounting pieces 18-1, 18-2, 18'-1, 18'-2 Lead wire 19 Solder 20 Flanged fixed shaft 21 Through hole 22 Flange 23 Slider 24 Bearing 25 Cylindrical spacer 26 Cylindrical resin 27 Flat commutator substrate 28, 28 'Commutator 28-1 ,..., 28-6 Commutator pieces 29, 29 ′ Insulating boards 30, 31 Printed wiring patterns 32 Starting winding terminals 33 Resins 34-1, 34-2 Eccentric metal weights 35 Empty spaces 36 In-frame cavity portions 37 Connection points 38, 39 Bearing

Continued on the front page (51) Int.Cl. ⁷ Identification code FI H02K 7/065 H02K 7/065 23/54 23/54 23/58 23/58 Z (72) Inventor Yasunobu Hiratsuka Shimotsuruma, Yamato City, Kanagawa Prefecture No. 3854 1 Techno Plaza Yamato Shiko Giken Co., Ltd. (56) References JP-A-6-292344 (JP, A) JP-A-55-122467 (JP, A) JP-A-63-290153 (JP, A) (58) Field surveyed (Int.Cl. ⁷ , DB name) H02K 7/065 H02K 23/54

Claims (1)

(57) [Claims] [Claim 1] N is set so that adjacent magnetic poles have different polarities.
And a magnetic field pole (15) formed of a total of four magnetic poles and S poles as a stator and a brush (13-
1, 13-2), a flat coreless eccentric vibration armature comprising an air core type armature coil group which faces the field poles via an air gap and rotates eccentrically, and the armature In the axial gap type flat vibration generating device having a rotor provided with a commutator (28) electrically connected to the armature, the flat coreless eccentric vibration armatures each have three different phases. Coil group (3-1, 3-2, 3-3)
Are formed in an eccentric shape which does not form a perfect circular plate shape when viewed from the axial direction while being superposed and shifted in the circumferential direction so as to form a three-phase arrangement, and the armature coil (3-
The effective conductor portions (3a) and (3a ′) contributing to the generated torque of one of the other two armature coils (3-1 and 3-3) are located at a position facing 2). Therefore, even within the range where the armature coil (3-2) is located, the other two armature coils (3-1 and 3-
3) and the weights of the effective conductors (3a) and (3a ') which contribute to the torque generated by the two armature coils (3-1 and 3-3) are added. And three armature coil groups (3-1 , 3
-2, 3-3) are effective conductor portions (3a) and
(3a ') is arranged with a 90 degree mechanical angle.
And the adjacent armature coils overlap by 30 degrees in the circumferential direction
And one of the three armature coils
Terminals are electrically connected in common, and the other terminals are
A flat vibration generator connected to a fixed commutator piece .