JP2002112500A - Power supply mechanism component for motor and its mounting structure - Google Patents

Abstract

(57) [Summary] [PROBLEMS] A small electric motor mounted inside a portable device housing,
A motor power supply mechanism component for electrically conducting connection between the housing-side drive circuit board that drives the motor and the housing-side drive circuit board is obtained. SOLUTION: A plurality of independent thin plate-shaped leaf spring terminals each having a joint plane portion corresponding to each corner terminal portion of a polygonal solder reflow chip substrate at an end of an electric motor are connected to each side of the polygonal chip substrate. It is arranged in the same direction in the linear direction and is separated from each other, and each of the leaf spring terminals is resin-molded into a substantially ring-shaped plate with a resin insulating material that is molded into a connected integral shape, thereby forming a power supply mechanism component.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply terminal structure for small electric motors, and more particularly to a silent vibration alarm device used as a calling system by vibration (vibration) of a mobile communication device, particularly a mobile phone. Wiring circuit boards that serve as electric motors and drive circuits on the mobile device side as power supply components to be mounted in combination with the cooling fan device such as the small flat vibration generator that is configured or the small cooling fan motor that is mounted on the mobile electronic device The present invention relates to a power supply mechanism component for establishing electrical continuity with a land portion and a mounting structure thereof.

[0002]

2. Description of the Related Art Conventionally, in a flat brushless vibration motor, like a cylindrical coreless vibration motor of another form used as a vibration generator, a vibration motor main body is mounted on a mobile phone housing side such as a printed circuit board. A number of fixing methods have been devised. At the same time, improvements have been made for the purpose of simplifying the connection structure of the motor-side power supply section and reducing the number of steps in the assembly process. As one example, when mounting the vibration generating device on a portable device, the vibration generating device itself is designed in a unit shape as a kind of small chip electronic component.

[0003] From this point of view, most of the electronic components mounted on portable equipment such as recent mobile phones are chipped, and each component is mounted on a wiring board on the housing side by a reflow soldering method. Are designed to be fixed by wiring. As described above, it is inevitable to use the reflow soldering connection method for the vibration motor parts which are indispensable to the silent vibration calling device mounted on the mobile phone.

[0004] In response to this problem, the present applicant has already realized the following as Japanese Patent Application No. 2000-151883 filed earlier. FIG. 7 is a schematic diagram showing a mounting mode of a flat vibration motor mounted on a drive circuit board, which is an example of the content of the earlier application. In the figure, 100 is a chip substrate 1 for wiring.
02 is a substantially disk-shaped flat brushless vibration motor assembled by mounting each component described later on the chip substrate 10
Power supply portions are solder-connected to the land portions R of the motor driving circuit board 150 at four locations by a reflow soldering method in the side cross-section concave portions of FIG.

[0005] The terminal shape of the reflow solder mounting portion of the flat type vibration motor 100 is a half-moon-shaped cutout portion formed on the peripheral edge of the chip substrate 102, and more specifically, the flat type to which the chip substrate 102 is mounted. The shape of the concave terminal portion 120 of the power supply connection portion formed on a part of the side cross section of the chip substrate 102 in the perspective views shown in FIGS. .

FIG. 9 is a schematic perspective view of both sides of the substrate showing only the chip substrate 102 partially. When the concave terminal portion 120 on the peripheral edge of the chip substrate 102 is further enlarged, the enlarged view of the inside of a circle is shown. It becomes such a partial shape. The upper and lower surface portions including the vertical surface shown by hatching on the substrate side cross section are patterned, and the side cross section portion where the conductive metal portion is mainly exposed becomes the power supply terminal portion.

By using the chip substrate 102 as a stator base of a flat motor structure, for example, as shown in FIG.
The brushless type flat vibration motor 100 shown in FIG. The internal configuration of the vibration motor 100 in FIG.
A shaft 107 serving as a rotation axis is fitted and fixed at the center of the disk-shaped rotor yoke 105 as a rotor part, and a substantially fan-shaped eccentric weight 104 is fixed to a part of a peripheral edge of one surface of the rotor yoke 105,
A flat ring-shaped magnet with almost the same outer diameter on the other side
106 is integrally fixed to the rotor yoke 105, thereby constituting an eccentric rotor portion V that generates vibration due to whirling force.

On the other hand, a chip substrate 10
2, a plurality of winding coils 111 arranged at equal angle connections, and each winding coil 111 and the rotor shaft 1 at its center position.
A stator resin 110 member that integrally mold-fixes a bearing 108 that supports the 07, a magnetic attraction plate 113 made of a metallic magnetic material disposed below the chip substrate 102, and an outer case 103 that covers the entire eccentric rotor portion V By combining these, a flat brushless vibration motor having the shape shown in FIG. 10 is completed.

At this time, the outer case 103 is attached to the eccentric rotor portion V
After that, the outer case-side clasp 114 is finally inserted into the four fixing portions 112 having a convex shape arranged on a part of the mold body of the stator resin 110 member, and the convex shape is formed. Is thermally deformed to fix the entire exterior case 103.

The flat vibration motor 10 constructed as described above
Since the rotor yoke 105, the eccentric weight 104, and the magnetic attraction plate 113 disposed and fixed on the bottom side of the chip substrate 102 are all made of a metallic magnetic material, magnetic attraction acts on the stator part side, and Is prevented from coming out in the thrust direction. On the rotor side, the rotor yoke 105
The eccentric weight 104 and the eccentric weight 104 both serve as a back yoke of the ring-shaped magnet 106, and can perform a highly efficient and stable rotational motion in a magnetic circuit.

The flat type vibration motor 100 in the form of a small and small-diameter electronic component chip incorporated as described above reflows on a circuit board 150 which is a housing-side drive circuit component of a cellular phone or the like in the form shown in FIG. It can be easily attached with solder. This eliminates the need for a conventional connection method using a lead wire or a lead wire with terminal socket, etc., and can be mounted as a single functional component on a board using a mounter device or the like, and fixed by reflow soldering. Thus, mass production automation in the production process has become possible.

[0012]

SUMMARY OF THE INVENTION An object of the invention of the prior application is to provide a flat-type vibration motor with a power feeding mechanism mounted on a portable device, particularly a mobile phone, etc., in order to perform an operation by a reflow soldering connection method. The chip board on which the winding coil, which is the base of the vibration motor, is mounted, is designed with a power supply structure that is optimal for direct connection to the circuit board. The vibration motor itself is directly and firmly connected and fixed on a substrate by a reflow soldering method, the connection operation process is simplified, and the overall thickness of the portable device is reduced.

Although the above-described conventional structure has improved the assembly productivity and solved the problems and objectives of the related art, it is also required to further reduce the thickness and supply power according to the mounting specifications of each manufacturer for each application. Improvements corresponding to the structure have been continuously desired. More specifically, the basic structure and accessory parts, including the reduction in the number of parts (integration of functional parts), the diversification of the power supply mechanism, as well as the reduction in thickness,
In other words, it has been desired to diversify with an accessory having a common power supply portion on the motor side and a conductive structure with the circuit board side.

[0014]

According to the present invention, in order to solve the above-mentioned problems, according to the present invention, a small motor mounted in a housing of a portable device and a housing-side drive circuit board for driving the motor are electrically connected. As the power supply terminal component to be electrically connected, a plurality of independent thin plate-shaped leaf spring terminals each having a joint plane portion corresponding to each corner terminal portion of the polygonal solder reflow chip substrate at the end of the motor form the polygon. The power supply mechanism parts are arranged in the same direction in the straight direction of each side of the chip substrate and are resin-molded into a substantially ring-shaped plate with a resin insulating material that molds the respective leaf spring terminals into a connected integral shape.

By attaching this, the motor and the housing-side drive circuit board for driving the motor can be combined face-to-face in the housing, and it is easy to electrically conduct and connect with the spring elastic force of the leaf spring terminal. Structure. Of course, 2
By providing thin plate-shaped leaf spring terminals corresponding to the poles or more poles and arranging them symmetrically as necessary, it is possible to cope with a wide variety of motors.

Exceptionally, in the case of a cylindrical motor, the chip substrate at the end of the motor may be circular instead of polygonal, and the shape of the power supply mechanism component side must be arranged in accordance with the shape so that the joining plane portion is circular. Becomes Further, the arrangement direction of the leaf spring terminals may be a two-pole facing type or a two-pole parallel type.

According to a second aspect of the present invention, at least two outer sides of the motor-side polygonal chip substrate mounted and fixed on a part of a substantially annular plate-shaped resin insulator which integrally molds each of the leaf spring terminals. The resin-integrated protruding holder portion that fits and holds the above outer diameter portion was molded.

This makes it easy to align the motor connection end with the chip substrate, and easily performs a solder reflow process at the joint plane portion of the leaf spring terminal corresponding to each corner terminal of the chip substrate. be able to.

In the third and fourth aspects, the vibration generating device and the cooling fan device are provided on the housing side of the portable device by attaching the power supply mechanism component to the flat type small brushless vibration motor and the small brushless fan motor. It can be easily mounted in terms of space and structure.

According to the fifth and sixth aspects of the present invention, a shaft serving as a rotating shaft is fixedly arranged at the center of the disk-shaped rotor yoke, and a substantially fan-shaped eccentric weight or a radial rotating blade is mounted and fixed on a part of the periphery of one surface of the rotor yoke. Further, on the other side, a flat ring-shaped magnet having substantially the same outer diameter is fixed to the rotor yoke to form an integral rotor portion, and as the stator side, a plurality of winding coils arranged at equal angle connection, and each winding coil, As a flat type brushless vibration motor composed of a bearing that supports the rotor shaft at its center position and an outer case that covers the entire rotor portion, a polygon solder reflow chip substrate at the connection end on the motor side is used.
A thin plate coil integrated chip substrate insert-molded with a sheet-like laminated coil arranged at a plurality of equal angle connections, and a board shape with an opening hole in the center of the substrate for mounting a bearing part that supports the shaft. .

As a result, it is possible to reduce the number of parts and cost by integrating the main functional parts, as well as reducing the thickness of the conventional stator part structure.

According to a seventh aspect of the present invention, in the mounting structure of the small motor device incorporated in the housing of the portable device, the power supply portion for establishing a conductive connection between the main body housing side driving circuit board and the motor terminal portion is provided. The power supply mechanism parts described in 2 are arranged, and a connection flat portion of a leaf spring terminal serving as an independent thin plate-like power supply terminal and each corner terminal portion of the polygonal solder reflow chip substrate at a connection end on the motor side are soldered. After the connection is fixed by reflow, the motor device itself is set in the housing so that the leaf spring terminal portion comes into contact with the land portion of the main body housing side circuit board with spring elasticity, and is sandwiched between the holding portions of the combined housing side case. An electric motor mounting structure for holding and fixing the current was adopted.

In addition, in the present invention, the connection flat portion of the leaf spring terminal serving as the independent thin plate-shaped power supply terminal and each corner terminal portion of the polygonal solder reflow chip substrate at the motor connection end portion are subjected to solder reflow. At the time of wire connection fixing or after wire connection fixing, an elastic sheet material of an arbitrary shape is inserted into the thickness space between the leaf spring terminal portion and the chip substrate surface, and the leaf spring terminal portion and the land of the main body housing side circuit board are inserted. The mounting structure of the motor is set in the housing so that the parts are reinforced and contacted by the elastic force of the elastic sheet in addition to the spring elasticity of the leaf spring terminals, and is sandwiched by the holding parts of the housing side case to be combined, and the current is held and fixed. And

This makes it possible to simplify and automate the assembly and attachment of the electric motor device to the housing of the portable device. In addition, according to the eighth aspect, even if the elasticity of the elastic body sheet is reduced, By elastic repulsion,
The required energizing contact pressure can be maintained. The elastic member may be of any shape as long as it fills the thickness space between the leaf spring terminal portion and the chip substrate surface. May be filled. Alternatively, structurally, an elastic member may be directly bonded to the terminal surface of the leaf spring terminal on the chip substrate side.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an example of a power supply mechanism component according to the present invention will be described, and a manufacturing process of the power supply mechanism component will be briefly described with reference to FIGS.

First, the manufacturing process of the power supply mechanism component will be described.
A description will be given from the molding stage of the material. FIG. 2A shows a leaf spring terminal 2.
This shows a state in which the ribbon material 40 is punched out by press working for the purpose of simultaneously arranging a plurality of pieces, that is, arranging each side of a square in the same direction in the linear direction. In this case, the metal material used as the ribbon material 40 is a copper alloy such as general phosphor bronze that has been subjected to gold plating.

Next, as shown in FIG. 2B, resin molding is applied to the leaf spring terminal 2 portion. Resin insulation for molding a plurality of independent thin plate-shaped leaf spring terminals 2 having a joint flat surface portion 4 corresponding to each corner terminal portion of a square solder reflow chip substrate at the connection end portion of the electric motor side, which will be described later, into a combined integral shape. Resin molded into a substantially ring-shaped plate with the material,
Fig. 2 (c) of the ribbon material shown as a resin molded body 3 and subsequently indicated by a broken line
At the V section to complete individual power supply mechanism parts.

FIG. 1 is a schematic view of the completed power supply mechanism component as viewed from two directions, and a partial cross-sectional view showing the structure of a partly leaf spring terminal. In the drawing, 1 indicates the entire power supply mechanism component of the present invention, 2 is a leaf spring terminal serving as a power supply terminal portion having spring properties, and 3 is a resin insulating material that molds the leaf spring terminal 2 into a connected integral shape. A resin molded body molded into a ring-shaped plate, 4 represents a joint flat portion corresponding to each corner terminal portion of the square solder reflow chip substrate at the connection end on the motor side, and 5 represents a contact portion of a leaf spring terminal, respectively. I have.

The terminal structure of the power supply mechanism component 1 shown in FIG.
As is clear from the BB cross-sectional view partially showing the plate spring terminal 2, the plate spring terminal 2 itself has a spring property in the plate thickness direction, and is designed so as to protrude outward from the position indicated by the broken line in the drawing.

The power supply mechanism component 1 is combined with a square solder reflow type chip substrate 52 serving as a connection end on the motor side shown in FIG. FIG. 3 shows the quadrangular solder reflow chip substrate 52 and the joining surface side of the power supply mechanism component 1 side by side at the same magnification, and the chip substrate 52 and the power supply mechanism component 1 are independent thin plate-shaped plates serving as power supply terminals. Spring terminal 2
The connection flat portion 4 and the corner terminal portions N of the square solder reflow chip substrate 52 at the connection end on the motor side are connected and fixed by solder reflow, and are integrally assembled.

At this time, the chip substrate 52 to be mounted on the protruding holder portion 33 integral with the resin insulator on a part of the substantially annular plate of the resin molded body 3 for integrally molding each of the leaf spring terminals 2 is connected. By fixing the outer diameters of the respective sides of the outer periphery of the combination, the positioning and fixing of the combination is further stabilized.

The square solder reflow chip substrate 52
As shown in FIG. 5 (a), is a thin plate coil integrated type chip substrate obtained by insert-molding a sheet-like laminated coil 55 which is connected and arranged at an equal angle of 60 degrees at six places. A thin board formed by integrating individual components of the stator resin 110, the winding coil 111, and the chip substrate 102 of FIG. 10 shown in the above-mentioned conventional example in a board shape having an opening hole for mounting a bearing component that supports the rotor shaft. This is a coil insert type chip substrate. FIG. 5B shows a bearing 88 which is fitted and fixed to the central portion of the substrate and supports the rotor shaft in two directions.

FIG. 4 is a plan view, a rear view, and a side view of a flat type vibration motor to which a power supply mechanism component is attached.
Further, FIG. 6 shows a schematic diagram of the internal structure of the flat vibration motor and a diagram specifically showing a structure of mounting the flat vibration motor to a device housing.

The vibration generating device (flat vibration motor 70) in which the power supply mechanism component is mounted on the motor side of the electric motor is connected to the contact portion 5 at the end of the leaf spring terminal 2 by the housing-side drive circuit board of the portable body.
The holder 200 in the housing A is dropped into the holder 201 in the housing A via the cushion material 209 so as to make contact with the land R of the spring 200 through the cushion material 209, and is set together with the drive circuit board 200. The motor (vibration generator) is sandwiched, and the housing-side drive circuit board 200 for driving the motor (vibration generator) is electrically conductively connected by the spring elastic force of the leaf spring terminal 2.

With this mounting structure, when the flat vibration motor is operated as a vibration generator, the leaf spring terminal 2 of the power feeding mechanism component 1 is pressed against the drive circuit board 200, and the leaf spring terminal 2 and the chip board surface The elastic sheet 20 inserted in the thickness space portion can be reinforced by the elastic force of the elastic sheet 20 itself in addition to the spring elastic force of the leaf spring terminal 2, so that even if the spring elasticity decreases, the elastic sheet
The required elastic contact pressure can be maintained by the elastic repulsion force of 20. The elastic member may be of any shape as long as it fills the thickness space between the leaf spring terminal portion and the chip substrate surface, and is usually made of elastic urethane rubber or urethane foam which also serves as insulation.

Next, an example of a combination of the power supply mechanism component of the present invention with another electric motor will be described, and an example of a mounting structure of the electric motor will be briefly described. 11 to 13 show an application example of a small brushless fan motor. The reference numerals in the drawings are the same as those described above, and the description thereof is omitted.However, the basic configuration is different from the eccentric weight of the rotor portion, in which a rotor for air blowing is installed in the rotor portion, In addition, an opening 83 for suction at the center in the axial direction of the outer case that covers the entire rotor section, and discharge to several places around the cylindrical surface (blast)
The opening 82 is provided for each, and a small flat fan motor 80 is obtained.

The internal structure of the fan will be described with reference to FIGS. The fan motor shown in the figure is a disk-shaped rotor yoke.
A shaft 87 serving as a rotation axis is disposed at the center of the rotor yoke 85, and a radial rotor 81 is mounted and fixed on one side of the rotor yoke 85, and a flat ring-shaped magnet 86 having substantially the same outer diameter is provided on the other side of the rotor yoke 85. And the rotor part fixed integrally with the centrifugal fan blades as a blower generation source, and as the stator side,
An outer case that covers the rotor section and guides the centrifugal airflow generated in the rotor section to the discharge side opening 82 in the centrifugal direction, and at the same time, provides an axial suction side opening 83 for guiding the airflow.
It consists of 89 and.

The direction of air flow by the fan follows the arrow shown in FIG. 13B from the suction side of the opening 83 to the discharge side of the opening 82. In principle, the airflow discharged from the opening 82 of the outer case 83 becomes negative pressure due to the airflow discharged from the opening 82 of the outer case 83 due to the centrifugal fan structure of the rotor rotating blades 81. The cycle of occurrence is repeated.

This fan motor (flat fan motor 8
No. 0) is mounted in a portable device by the same mounting structure as the flat type vibration motor 70, and blows outside air around a circuit board inside the housing to play a role of providing a cooling effect. Structurally, as shown in FIG.
From 02, the airflow flows to the outlet 204 of the in-housing holder unit 201, and further functions to release hot air to the outside of the housing while air-cooling the heated electronic components on the circuit board 203 inside the housing. I do.

As a result, the heat storage inside the ultra-small portable device having a very high mounting density is reduced, and it becomes a powerful heat control device component for the latest mobile terminal devices which are desired to be small, thin and high-performance. . This fan motor is particularly suitable for places where local exhaust or local cooling is required around the CPU in high-performance notebook PCs, and where the mounting space is, for example, about 10 mm in diameter and about 3 mm in thickness. It is an ultra-compact and high-performance fan motor that can be applied sufficiently.

It should be noted that the above-described flat brushless vibration motor and flat brushless fan motor are shown as one embodiment of an electric motor,
The present invention is not limited to a brushless motor,
The power supply mechanism parts and mounting structure of the present invention can be applied to a flat motor with a brush having the same shape. It is needless to say that it is possible to place the power supply on the power supply.

[0042]

As described above, according to the power supply mechanism component structure of the present invention, the polygonal solder reflow chip substrate at the connection flat portion of the leaf spring terminal serving as an independent thin plate-shaped power supply terminal and the motor connection end portion is formed. Each corner terminal can be easily connected and fixed by solder reflow, and the motor device itself with this power supply mechanism component attached to the power supply point for conducting connection between the main body housing side drive circuit board and the motor terminal portion The spring terminal portion can be set in the housing so as to be brought into contact with the land portion of the main body housing side circuit board with spring elasticity, and can be held and fixed by being sandwiched by the holding portion of the housing side case to be combined.

As described above, by attaching the flat type vibration motor to the end portion in the thickness direction of the flat type vibration motor, the motor and the housing-side circuit board for driving the motor are combined face-to-face in the housing, and the spring of the leaf spring terminal is provided. The structure can be electrically connected by elastic force. In addition, since a fixed part for holding the motor is not required and the power supply can be directly arranged on the circuit board surface of the housing device side without connecting members such as lead wires, it is possible to incorporate the power supply device into the portable device side. Can be simplified, and the number of parts can be reduced. Therefore, it is possible to reduce the size and thickness of the portable device, to increase the number of automated parts for assembling the portable device as a whole, to improve mass productivity, and to reduce the manufacturing cost.

Further, when the connection flat portion of the leaf spring terminal serving as the independent thin plate-like power supply terminal and each corner terminal portion of the polygonal solder reflow chip substrate at the motor connection end are connected and fixed by solder reflow. Or after fixing the connection,
In the space in the thickness direction between the leaf spring terminal and the chip board surface,
By inserting an elastic sheet material of an arbitrary shape, the leaf spring terminals and the lands of the circuit board on the body housing side are reinforced by the elastic force of the elastic sheet in addition to the spring elasticity of the leaf spring terminals. Can be set in the housing so as to make stable contact.

When the power supply mechanism component of the present invention is combined with the solder reflow type motor, the power supply mechanism component is part of an attached part, and the motor itself is directly solder reflowed to the circuit board depending on the mounting and fixing specification. It is also possible to fix the connection, and it can respond to the power supply structure according to the design specifications of each manufacturer for each application. In addition, it is possible to select not only flat vibration motors but also flat motors, such as flat fan motors, according to the form on the electric motor side, and to share the basic structure and parts including diversification of the power supply mechanism.

[Brief description of the drawings]

FIG. 1 is a schematic external view of a power supply mechanism component according to the present invention viewed from two directions, and a partial cross-sectional structural view.

FIG. 2 is a schematic process diagram illustrating a flow of a manufacturing process of a power supply mechanism component according to the present invention up to a stage of molding from a material.

FIG. 3 is a schematic diagram showing a combination form of a power supply mechanism component and a solder reflow chip substrate according to the present invention.

FIG. 4 is a plan view, a back view, and a plan view of the flat type vibration motor according to the present invention.
FIG.

FIG. 5 is a plan view and a side view of a solder reflow chip substrate and a bearing used in the flat type vibration motor according to the present invention.

FIG. 6 is a structural sectional view showing an example of an internal structure of a flat type vibration motor according to the present invention and an example of attachment to an apparatus housing.

FIG. 7 is a perspective view illustrating a mounting mode of a flat vibration motor according to the related art on a drive circuit board.

FIG. 8 is a perspective view illustrating the structure of a chip substrate incorporated in a conventional flat vibration motor end.

FIG. 9 is a perspective view illustrating the external structure of a chip substrate used in a conventional flat vibration motor.

FIG. 10 is an exploded perspective view illustrating the internal structure of a conventional flat type vibration motor.

FIG. 11 is a plan view, a back surface, and side views of the flat fan motor according to the present invention;

FIG. 12 is a diagram showing an internal rotor structure of a flat fan motor according to the present invention.

FIG. 13 is a cross-sectional view of the internal structure of the flat fan motor according to the present invention, and a schematic diagram showing the flow of airflow by the fan.

FIG. 14 is a schematic cross-sectional view showing an example of mounting the flat fan motor according to the present invention to an equipment housing.

[Explanation of symbols]

 1 Power supply mechanism parts 2 Leaf spring terminal 3 Resin molded body 4 Joint plane part 5 Contact part 13, 113 Magnetic attraction plate 20 Elastic sheet 33 Holder part 40 Ribbon material 52 Coil insert type chip board 55 Laminated coil 70, 100 Flat vibration Motor 73, 103 Outer case 80 Flat fan motor 81 Rotor blade 82, 83 Opening 84, 104 Eccentric weight 85, 105 Rotor yoke 86, 106 Magnet 87, 107 Shaft 88, 108 Bearing (bearing) 102 Chip substrate 110 Stator resin 111 Wound coil 112 Fixed part 114 Clasp part 150, 200 Circuit board 201 Holder part in housing 202 Inlet 203 Pushed part in housing 204 Outlet 209 Cushion N Corner terminal R Land V Eccentric rotor

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) H02K 15/02 H02K 15/02 A 5H605 15/12 15/12 E 5H607 21/24 21/24 M 5H615 29/00 29 / 00 Z 5H621 H05K 7/12 H05K 7/12 A M 7/20 7/20 HF term (reference) 4E353 AA16 AA18 AA20 AA21 BB02 BB05 BB07 CC01 CC04 CC16 CC25 CC32 CC33 CC40 DD05 DD11 DR03 DR15 DR19 DR29 DR32 DR36 DR44 DR53 DR56 EE01 GG01 GG11 GG16 GG20 5D107 AA12 AA13 BB20 DD09 5E322 AB04 AB07 AB08 AB11 BA01 BB02 5H019 AA07 AA09 AA10 CC02 DD06 DD10 EE07 EE09 5H604 AA08 BB01 BB10 BB13 CC03 CC03 DB03 CC03 DB01 CC03 EC04 GG07 GG18 5H607 AA12 BB01 BB07 BB09 BB13 CC01 DD03 DD16 EE57 FF04 FF12 JJ03 JJ05 5H615 AA01 BB01 BB07 BB15 PP01 PP12 PP14 QQ02 QQ08 QQ19 SS16 SS18 SS44 TT33 5H621 BB06 GB01 GB14

Claims (8)

[Claims] 1. A small motor mounted inside a housing of a portable device, and a housing-side drive circuit board for driving the motor,
A plurality of independent thin plate-shaped leaf spring terminals each having a joint flat portion corresponding to each corner terminal portion of the polygonal solder reflow chip substrate at the end of the motor, The polygonal chip substrate is spaced apart in the same direction in the linear direction of each side, and each of the leaf spring terminals is resin-molded into a substantially ring-shaped plate with a resin insulator that is molded into a connected integral shape. Power supply mechanism parts for motors. 2. An outer diameter portion of at least two outer peripheral sides of a motor-side polygonal chip substrate to be mounted and fixed is fitted into a part of a substantially annular plate of a resin insulator which integrally molds the respective leaf spring terminals. 2. A protruding holder part integral with the resin insulator to be inserted and held is formed.
A power supply mechanism component for an electric motor as described in the above. 3. The vibration generator using a power supply mechanism component for an electric motor according to claim 1, wherein the electric motor is a flat type small brushless vibration motor. 4. The cooling fan device according to claim 1, wherein said electric motor is a flat-type small brushless fan motor. 5. A shaft serving as a rotation axis is disposed at the center of a disk-shaped rotor yoke, a substantially fan-shaped eccentric weight is placed and fixed on a part of the periphery of one surface of the rotor yoke, and a flat surface having substantially the same outer diameter is mounted on the other surface. An eccentric rotor unit in which a ring-shaped magnet is fixed to a rotor yoke is used as a vibration source, and a plurality of winding coils arranged at equal angle connections are arranged on the stator side with respect to each other. A flat type brushless vibration motor comprising a bearing for supporting the rotor, and an outer case covering the entire rotor portion, wherein a polygonal solder reflow chip substrate at the end of the motor has a sheet-like lamination in which a plurality of portions are arranged at equal angle connections. This is a thin sheet coil integrated type chip board with insert-molded coils, and a bearing part that supports the shaft at the center of the board. 4. The vibration generator for an electric motor according to claim 3, wherein the vibration generator has a shape having an opening for mounting an article. 6. A shaft serving as a rotation axis is disposed at the center of a disk-shaped rotor yoke, radial rotors are mounted and fixed in the peripheral direction of one surface of the rotor yoke, and a flat ring-shaped member having substantially the same outer diameter is provided on the other surface. An integral rotor section in which a magnet is fixed to a rotor yoke is used as an air blowing source by a centrifugal fan rotor, and a plurality of winding coils arranged in a uniform angle connection as a stator side, and each of the winding coils and the rotor section at the center position. A flat brushless fan motor configured by a bearing that supports a shaft, and an outer case that covers the rotor portion and guides airflow from the axial flow direction to the centrifugal direction, wherein a polygonal solder reflow chip substrate at an end of the motor is provided. It is a thin-plate coil integrated type chip substrate that is insert-molded with a sheet-like laminated coil in which a plurality of locations are arranged at equal angle connections. 5. The cooling fan device according to claim 4, wherein the cooling fan device has a shape having an opening hole for mounting a bearing component for supporting a shaft at a center central portion. 7. The power supply according to claim 1 or 2, wherein in the mounting structure of the small motor device incorporated in the housing of the portable device, the power supply point for conducting connection between the main body housing side drive circuit board and the motor terminal portion is provided. After arranging the mechanical parts and connecting and fixing the connection flat part of the leaf spring terminal which is an independent thin plate-shaped power supply terminal and each corner terminal part of the polygon solder reflow chip substrate at the motor connection end by solder reflow, The motor device itself is set in the housing such that the leaf spring terminal side is brought into contact with the land portion of the main body housing side circuit board with spring elasticity, and is sandwiched between holding portions of the housing side case to be combined, and is electrically held and fixed. The mounting structure of the motor device. 8. A method for connecting and fixing a connection flat portion of a leaf spring terminal serving as the independent thin plate-shaped power supply terminal and each corner terminal portion of a polygon solder reflow chip substrate at a motor connection end by solder reflow. Or, after the wiring is fixed, an elastic sheet material of an arbitrary shape is inserted into a space in the thickness direction between the leaf spring terminal portion and the chip substrate surface, and the leaf spring terminal portion and the land portion of the main body housing side circuit board are connected. In addition to the spring elasticity of the leaf spring terminal, it is reinforced by the elastic force of the elastic sheet, set in the housing so as to make contact, sandwiched by the holding part of the housing side case to be combined, and fixed by energization holding. The mounting structure of the electric motor device.