JPH11234996A - Spindle motor and rotor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To speedily and easily secure the electric continuity state of the terminal of a motor coil and a printed board conductive line by sticking a face opposite to a face where the sandwiching tool of a printed board is provided to a face facing the motor coil with adhesive and sandwiching the terminal of the motor coil by the sandwiching tool. SOLUTION: In a printed board with connection function A, eight conductive lines 12 whose both ends are connection parts 12a are printing-wired on the frame-like substrate 11 of a magnifying glass constituted of a circular part and a linear part. The sandwiching tool 13 is stuck to the vicinity of the respective connection parts 12a of the substrate 11 by adhesive 14. The sandwiching tool 13 is formed of a conductor material and it has a base part 13a and a valley-like sandwiching part 13b swelled in to two mountain form from the base part 13a. The base part 13a of the sandwiching tool 13 and the connection parts 12a of the conductive lines 12 are electrically connected by solder 15. The number of poles and the number of lines are not regulated. At the time of assembling a motor, a motor coil terminal and the printed board conductive lines can speedily and easily be set in an electric connective state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention makes it possible to quickly and easily establish an electrically conductive state between a terminal of a motor coil and a conductive wire printed on a printed circuit board at the time of assembling a motor, and has a very small connection space. Spindle motor, which can be quickly and easily connected
And a rotator device.

[0002]

2. Description of the Related Art In the process of assembling an ultra-small electromechanical device, for example, a spindle motor for a HDD (rotor diameter is about 15 mm), the connection between a terminal of a motor coil and a conductive wire on a printed circuit board must be extremely small and soldered. For this reason, a skilled worker uses a microscope to perform manual soldering. For this reason, the productivity is not improved and the production cost is high.

[0003] It is difficult to solder the terminal of the motor coil and the connection portion of the conductive wire of the printed circuit board in assembling the spindle motor because the coil terminal of the motor coil is printed on the surface of the motor frame facing the motor coil. In the case of a spindle motor that is connected to conductive wires printed on a board at the time of assembly, it is necessary to solder with a soldering iron under the stator inside the motor and perform soldering. Is extremely fine, so it is necessary to use a microscope to make the solder extremely small, and at that time, the end of the motor coil cannot be stabilized to the position to be soldered,
In the case of a spindle motor where the coil terminal of the motor coil is connected to the conductive wire printed on the printed circuit board pasted on the outer surface of the motor frame when assembling, use a microscope because the coil wire diameter is extremely small. This is because it is necessary to make the solder extremely small, and at that time, the end of the motor coil cannot be stabilized to the soldering position by shaking.

[0004]

SUMMARY OF THE INVENTION The present invention has been devised in view of the above points, and provides a quick and simple electrical connection between a terminal of a motor coil and a conductive wire printed on a printed circuit board during motor assembly. Another object of the present invention is to provide a spindle motor and a rotating body device that can quickly and easily connect even if the connection space is extremely small.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a spindle motor in which a coil terminal of a motor coil is connected at the time of assembly to a conductive wire printed on a printed circuit board attached to a surface of the motor frame facing the motor coil. In the printed circuit board, a clamp made of a conductive material is attached in advance in the vicinity of the connection portion of the conductive wire, and the clamp and the connection portion of the conductive wire are connected in an electrically conductive state. The surface of the printed circuit board opposite to the surface on which the clip is attached is attached to the surface of the motor frame facing the motor coil by an adhesive, and the coil terminal of the motor coil is attached to the clip. An object of the present invention is to provide a spindle motor characterized in that a motor coil and a conductive line printed on a printed circuit board are brought into an electrically conductive state by being sandwiched.

The present invention also provides a spindle motor in which a coil terminal of a motor coil is passed through a small hole provided in a motor frame and connected to a conductive wire printed on a printed circuit board attached to an outer surface of the motor frame. The printed circuit board is provided with a small hole for passing a coil terminal of a motor coil passed through a small hole provided in the motor frame, and a clipping member made of a conductive material is provided in advance near a connection portion of the conductive wire. And the clamp and the connection portion of the conductive wire are electrically connected to each other, and the surface of the printed circuit board opposite to the clamp is opposed to the motor coil of the motor frame by an adhesive. The coil end of the motor coil passed through the small hole provided in the motor frame is passed through the small hole provided on the printed circuit board, and then the motor coil is inserted into the clipping tool. By sandwiched the coil terminal is to the conductive lines printed on the motor coil and the printed circuit board to provide a spindle motor, which is a electrically conductive.

The present invention also provides a spindle motor in which a coil terminal of a motor coil is passed through a small hole provided in a motor frame and connected to a conductive wire printed on a printed circuit board attached to an outer surface of the motor frame. The printed circuit board is provided with a small hole for passing a coil terminal of a motor coil passed through a small hole provided in the motor frame, and a clipping member made of a conductive material is provided in advance near a connection portion of the conductive wire. A surface of the printed circuit board opposite to the holding member is attached to a surface of the motor frame facing the motor coil by an adhesive, and the coil of the motor coil is passed through a small hole provided in the motor frame. After passing the terminal through the small hole provided in the printed circuit board, the coil terminal of the motor coil is clamped to the clamp, and furthermore, the clamp and the connection portion of the conductive wire are electrically connected. Conduction state to be connected, or a connection portion between the motor coil terminals and the printed printed conductive lines on the substrate of the coil is to provide a spindle motor which is characterized in that it is connected.

The present invention also provides a spindle motor in which a coil terminal of a motor coil is passed through a small hole provided in a motor frame and connected to a conductive wire printed on a printed circuit board attached to an outer surface of the motor frame. The printed circuit board is provided with a clip in advance near the connection portion of the conductive wire, and a surface of the printed circuit board opposite to the clip is attached to a surface of the motor frame facing the motor coil of the motor frame with an adhesive. Is provided, the coil terminal of the motor coil passed through the small hole provided in the motor frame is passed through the small hole provided in the printed circuit board, and then the coil terminal of the motor coil is clamped to the clamping device. A spindle motor characterized in that the coil terminals are connected to conductive wires printed on a printed circuit board by soldering or bonding. It is to.

Another object of the present invention is to provide a rotating device using the spindle motor as a drive source.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. 1 (a), 1 (b) and 1 (c). FIG.
(A) shows a spindle motor according to one embodiment of the present invention. FIG. 1B shows a printed circuit board with a connection function mounted on a spindle motor. FIG. 1C shows a connection state between a coil terminal of a motor coil and a conductive line of a printed circuit board having a connection function.

The spindle motor M1 is an ultra-thin and ultra-small spindle motor having a fluid dynamic pressure bearing, and electrically connects a coil terminal of a motor coil to a conductive wire of a printed circuit board provided inside the motor. Connected. The spindle motor M1 is provided with a support shaft portion 1b at both ends of a thrust bearing portion 1a having thrust dynamic pressure generating grooves formed on both surfaces and a radial bearing portion 1c having radial dynamic pressure generating grooves formed on the peripheral surface.
Shaft 1, housing 2, and press ring 3
A motor frame 4 for supporting the housing 2;
A rotor 5 fixedly fitted to the support shaft portion 1b of the rotating shaft 1,
A stator 6 press-fitted and fixed to the outer periphery of the housing 2 and a four-pole motor coil 7 provided on the stator 6, for example.
A permanent magnet 8 provided on the rotor 5, a magnet 9 for media chuck fixed on the upper surface of the rotor 5, and a printed circuit board A with a connection function adhered to the upper surface of the motor frame 4 with a double-sided tape 10. The periphery of the rotating shaft 1 is filled with lubricating oil, and the coil terminal 7a of the motor coil 7 is connected to the printed circuit board A having a connection function.

As shown in FIGS. 1 (b) and 1 (c), the printed circuit board A with a connection function is provided with connection portions 12a at both ends of a magnifying glass frame-shaped substrate 11 comprising an annular portion and a straight portion. The eight conductive lines 12 are printed and wired, and a holding member 13 is attached to the substrate 11 in the vicinity of each of the connection portions 12a with an adhesive 14. The holding member 13 is formed of a conductive material, and has a base 13a and a valley-shaped holding portion 13b protruding from the base 13a in a two-peak shape. The base 13a of the clip 13 and the connection 12a of the conductive wire 12 are electrically connected by solder 15 to each other. Note that the number of poles and the number of lines are not limited.

The substrate 11 is a hard substrate made of paper epoxy resin, bakelite, or glass epoxy resin. The substrate 11 may be a flexible substrate made of a heat-resistant film such as polyimide. In this case, the printed wire is printed on one heat-resistant film, laminated with another heat-resistant film, and the printed wire is used as the conductive wire 12. If the connection portion at the end is exposed without being laminated, the durability of the conductive wire 12 can be ensured and an electrical short can be avoided. Further, the clip 13 can be moved to a position overlapping the conductive wire 12 near the connection portion 12a. It is preferable because it can be attached.

Instead of the solder 15, the base 13 a of the clamp 13 and the connection 12 a of the conductive wire 12 are formed by bonding.
May be connected. Soldering or bonding requires a mounting space, but if there is no mounting space at the mounting location, it is preferable to pre-apply solder or bonding. Further, when the holding member 13 is formed of a conductive material, neither solder nor bonding is performed.
A conductive adhesive may be used as the adhesive 14, and the clip 14 may be bonded to the substrate 11 by overlapping the adhesive 14 with the end of the connection portion 12 a of the conductive wire 12.

As described above, if the clip 13 attached to the substrate 11 is previously connected to the conductive wire 12 printed on the substrate 11 in an electrically conductive state, the motor coil to be connected is connected. The terminal 7a of 7 only needs to be firmly clamped so as not to come off from the valley-shaped clamping portion 13b of the clamping device 13 which is protruded in a mountain shape. When the terminal 7a of the motor coil 7 is covered with an insulating protective film, the terminal is sandwiched after removing the insulating protective film.

This connection method is also applied to a case where the clip 13 is formed of a conductive material. In this embodiment, the coil terminal 7a of the motor coil 7 is
The space required to clamp the valley-shaped clamping portion 13b of No. 3 is large enough to insert the tweezers from the horizontal direction, and is much thinner and smaller than the space required for soldering. And easy to do.

Next, a second embodiment of the present invention will be described with reference to FIG.
This will be described with reference to (a), (b), and (c). FIG.
As shown in FIG. 2A, a spindle motor M2 according to this embodiment uses a printed circuit board B with a connection function shown in FIG. 2B instead of the printed circuit board A with a connection function shown in FIG. The point provided on the lower surface of the motor frame 4 is different from the spindle motor of the first embodiment shown in FIG.

Hereinafter, the components of the spindle motor according to this embodiment are the same as those of the spindle motor according to the first embodiment, and the same reference numerals are given to the same components, and description thereof is omitted. Only the elements will be described. As shown in FIG. 2A, the printed circuit board B having a connection function is accommodated in a concave portion 4 a formed on the lower surface of the motor frame 4 for sticking. As shown in FIGS. 2B and 2C, the printed circuit board B with a connection function is provided with a small hole 13c in the base 13a of the holding member 13 and a small hole 11a in the substrate 11, and The holes 13 c and 11 a coincide with each other, and the motor frame 4 also has small holes 11 a in the substrate 11.
Are provided with small holes 4b.

Therefore, when the terminal 7a of the motor coil 7 is passed through the small hole 4b formed in the motor frame 4, the terminal 7a of the motor coil 7 is passed through the small hole 11a of the substrate 11 and the small hole 13c of the holding member 13. The terminal 7 of the motor coil 7
a is firmly clamped so as not to come off in the valley-shaped clamping portion 13b protruding in the shape of the mountain of the clamping device 13.
Terminal 7a and conductive line 12 printed on substrate 11
And are electrically connected. Note that the small holes 13c are not necessarily provided, but in this case, the small holes 11c are provided so that the pinching tool 13 does not cover the small holes 11a.

In this embodiment, since the coil terminal 7a of the motor coil 7 can be guided to the outside of the motor to clamp the valley-shaped clamping portion 13b of the clamping device 13, the space required for the connection work is sufficient. In addition, since there is no need for soldering or bonding, connection can be performed quickly and easily. In this embodiment, since the connection is external, the solder 15 is not attached to the printed circuit board B with the connection function in advance, and after the coil terminal 7a of the motor coil 7 is clamped to the clamp 13 to the board 11. The coil terminal 7a may be soldered or bonded to the connection portion 12a of the printed conductive wire 12.

Next, a third embodiment of the present invention will be described with reference to FIGS. 3 (a), 3 (b) and 3 (c). FIG.
As shown in FIG. 3A, a spindle motor M3 according to this embodiment uses a printed circuit board C with a connection function shown in FIG. 3B instead of the printed circuit board A with a connection function shown in FIG. The point provided on the upper surface of the motor frame 4 is different from the spindle motor of the first embodiment shown in FIG.

In the following, the same components as those of the first embodiment will be denoted by the same reference numerals as those of the spindle motor of the first embodiment, and description thereof will be omitted. Only the elements will be described. As shown in FIGS. 3 (b) and 3 (c), the printed circuit board C with a connection function is composed of a magnifying glass frame-shaped substrate 11 composed of an annular portion and a straight line portion. The conductive wire 12 is printed and wired, and a clip 16 is attached near a connection portion 12 a located in the annular portion of the substrate 11. The holding member 16 is formed by press-forming a conductive plate material to form a small hole 1.
6a and a tongue piece 16b formed by cutting two cut lines on one side of the small hole 16a and bending the cut line between the two cut lines toward the opposite substrate side. Therefore, if the coil end 7a of the motor coil 7 is inserted into the small hole 16a of the clipping tool 16 and the tongue piece 16b is bent back to be flat, the tongue piece 1
6b reduces the area of the small hole 16a, and the coil terminal 7
a can be pinched. The clamping force of the clamping device 16 is greater than the clamping force of the clamping device 13 shown in FIG. 1, and the clamping device 16 is strongly clamped so as to bite into the coil end 7a. Therefore, the clip 16 is brought into an electrically conductive state with the coil terminal 7a.

In this embodiment, the space for inserting the coil end 7a of the motor coil 7 into the small hole 16a of the holding member 16 and returning the tongue piece 16b to be flat so as to solder is provided. Since a small space that is thinner than the required space is sufficient, connection can be performed quickly and easily. continue,
FIGS. 4A, 4B, and 4C show a fourth embodiment of the present invention.
This will be described with reference to FIG.

As shown in FIG. 4A, the spindle motor M4 according to this embodiment is different from the printed circuit board C with the connection function shown in FIG. 3B in that the connection function shown in FIG. The difference from the spindle motor of the third embodiment shown in FIG. 3 is that a printed circuit board D provided on the lower surface of the motor frame 4 is provided. Hereinafter, with respect to the components of the spindle motor according to this embodiment, the same reference numerals are given to the same components as those of the spindle motor according to the third embodiment, and description thereof will be omitted. Only different components will be described. explain.

As shown in FIG. 4A, the printed circuit board D with a connection function is attached to a concave portion 4a formed on the lower surface of the motor frame 4 in order to adhere thereto. FIG. 4 (b),
As shown in (c), the printed circuit board D with a connection function is:
Magnifying glass frame-shaped substrate 1 consisting of an annular part and a straight part
1, eight conductive wires 12 each having a connection portion 12a at both ends.
Are printed and wired, and a clip 16 is attached near the connection portion 12 a located in the annular portion of the substrate 11. The holding member 16 is formed by press-forming a conductive plate material, forming a small hole 16a and two cut lines on one side of the small hole 16a, and bending the gap between the two cut lines toward the opposite substrate side. Tongue piece 16b
have. The substrate 11 is provided with a small hole 11a corresponding to the small hole 16a of the holding member 16, and the motor frame 4 is provided with a small hole 4a corresponding to the small hole 11a of the substrate 11.
b is provided. Therefore, when the coil terminal 7a of the motor coil 7 is passed through the small hole 4b provided in the motor frame 4, the terminal 7a of the motor coil 7
a can be passed through the small hole 16a of the clipping tool 16 and the tongue piece 16b of the clipping tool 16 is bent back to be flat,
The tip of the tongue piece 16b reduces the area of the small hole 16a, and can hold the coil terminal 7a, so that the clipping tool 16 is electrically connected to the coil terminal 7a.

In this embodiment, since the coil end 7a of the motor coil 7 can be guided to the outside of the motor and clamped by the clamp 16, the space required for the connection work can be sufficiently secured. Since there is no need for soldering or bonding, connection can be performed quickly and easily. In this embodiment, since the connection is made externally, the solder 15 is not attached to the printed circuit board D having the connection function in advance, and the board 11 is inserted after the coil terminal 7a of the motor coil 7 is attached to the attachment 16.
The coil terminal 7a may be soldered or bonded to the connection portion 12a of the conductive wire 12 printed and printed.

A printed circuit board E with a connection function shown in FIG. 5 is used instead of the printed circuit board B with a connection function shown in FIG. 2B and the printed circuit board D with a connection function shown in FIG. 4B. can do. The printed circuit board E with the conductor fixing function is a magnifying glass frame-shaped substrate 11.
, Eight conductive wires 12 each having a connection portion 12a at both ends are printed and wired, and a clip 17 is attached to an annular portion of the substrate 11. The holding member 17 is formed in a ring shape from a non-conductive material, and the connecting portion 1 is formed so as not to cover the connecting portion 12a of the conductive wire 12 printed on the substrate 11.
A small hole 17a is provided in a portion corresponding to 2a, and a small hole similar to the small hole 16a and the tongue piece 16b of the clipping tool 16 shown in FIG. 17b
And a tongue piece 17c are provided.
A small hole 11a is provided in the substrate 11 corresponding to 7b. Therefore, in FIG. 4 (a), the coil end 7a passed through the small hole 4b of the motor frame 4 is further passed through the small holes 11a and 17b, and then the tongue piece 17c is crimped back so that the bending is flat and the tongue piece 17c is returned. After the coil terminal 7a is strongly clamped by the piece 17c, the coil terminal 7a is further inserted into the small hole 17a.
Soldering in the vicinity of the connection portion 12a exposed in the inside, or cutting off the excess of the coil terminal 7a sandwiched by the tongue piece portion 17c, and exposing the terminal end of the coil terminal 7a and the connection portion exposed in the small hole 17a. 12a is connected by bonding.

The small hole 17b and the tongue piece 1 similar to the small hole 16a and the tongue piece 16b of the clipping tool 16 shown in FIG.
7c, instead of providing the pinch 7c shown in FIG.
A valley-shaped holding portion similar to the third valley-shaped holding portion 13b may be provided. FIG. 6 shows that the spindle motor M of FIG.
1 shows a rotator device employing No. 1. This rotating device is a hard disk device, and a rotating disk H such as a magnetic disk or an optical disk is attached to a rotor of a spindle motor M1.
Is attached. The rotating device has the functions, functions, and effects of the spindle motor of the present invention.

[0029]

As described above, according to the spindle motor and the rotator device of the present invention, the terminal of the motor coil and the conductive wire printed on the printed circuit board can be quickly and easily electrically connected at the time of assembling the motor. The connection state can be established, and the connection state can be quickly and easily established even if the connection space is extremely small.

[Brief description of the drawings]

FIG. 1 relates to a spindle motor according to a first embodiment of the present invention, in which (a) shows a longitudinal sectional view of the spindle motor, (b) is a sectional view taken along Ib-Ib in (a),
(C) is an enlarged sectional view of a connection point between a motor coil and a conductive wire on a printed circuit board.

FIGS. 2A and 2B are longitudinal sectional views of a spindle motor according to a second embodiment of the present invention, and FIG. 2B is a sectional view taken along line IIb-IIb in FIG.
(C) is an enlarged sectional view of a connection point between a motor coil and a conductive wire on a printed circuit board.

3A and 3B relate to a spindle motor according to a third embodiment of the present invention, in which FIG. 3A is a longitudinal sectional view of the spindle motor, FIG. 3B is a sectional view taken along line IIIb-IIIb in FIG.
(C) and (d) are enlarged cross-sectional views of a connection point between a motor coil and a conductive wire on a printed circuit board.

4A is a longitudinal sectional view of a spindle motor according to a fourth embodiment of the present invention, FIG. 4B is a longitudinal sectional view of the spindle motor, FIG. 4B is a sectional view taken along line IVb-IVb in FIG.
(C) is an enlarged sectional view of a connection point between a motor coil and a conductive wire on a printed circuit board.

FIG. 5 is a front view showing details of a printed circuit board with a conductor fixing function mounted on a spindle motor according to a fifth embodiment of the present invention.

FIG. 6 is a schematic perspective view of a rotator device employing the spindle motor of FIG. 1 as a rotary drive source.

[Explanation of symbols]

 M1 ··· spindle motor 1a ··· thrust bearing 1b ··· support shaft 1c ··· radial bearing 1 ··· rotary shaft 2 ··· housing 3 ··· press ring 4 ··· motor frame 5 ... rotor 6 ... stator 7 ... motor coil 7a ... coil end 8 ... permanent magnet 9 ... magnet for media chuck 10 ... double-sided tape A ... print with connection function Substrate 11 ... Substrate 11a ... Small hole 12 ... Conducting wire 12a ... Connection portion 13 ... Scrapper 13a ... Base 13b ... Valley-shaped sandwiching portion 13c ... Small Hole 14: Adhesive 15: Solder M2: Spindle motor B: Printed circuit board with connection function 4a: Depression of motor frame 4b: Small hole M3: Spindle motor C: printed circuit board with connection function 16: clamp 16a: small hole 16b: tongue piece M4: spindle motor D: printed circuit board with connection function 11a: small hole E: Printed circuit board with connection function 17: Clamping tool 17a: Small hole 17b: Small hole 17c: Tongue piece H: Rotated disk

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Isamu Takehara 1-8-1, Nakase, Mihama-ku, Chiba-shi Inside Seiko Instruments Inc. (72) Inventor Takashi Ishida 1-8-1, Nakase, Mihama-ku, Chiba-shi, Chiba Inside Iko Instruments Co., Ltd. (72) Inventor Shinichi Hayashizaki 1-8-1, Nakase, Mihama-ku, Chiba City, Chiba Prefecture Inside Inko Instruments Co., Ltd. (72) Hiromasa Shimaguchi 1-8-1, Nakase, Mihama-ku, Chiba City, Chiba Inside Instruments Co., Ltd. (72) Inventor Katsushige Konno 1-8-8 Nakase, Mihama-ku, Chiba-shi, Chiba Seiko Instruments Inc.

Claims (5)

[Claims] 1. A spindle motor in which a coil terminal of a motor coil is connected to a conductive line printed on a printed circuit board attached to a surface of the motor frame facing the motor coil, wherein the printed circuit board is formed of the conductive wire. In the vicinity of the connection portion, a clip made of a conductive material is attached in advance, and the clip and the wire connection portion of the conductive wire are connected in an electrically conductive state,
A surface of the printed circuit board opposite to the surface on which the clip is provided is adhered to a surface of the motor frame facing the motor coil by an adhesive, and a coil terminal of the motor coil is pinched by the clip. A spindle motor wherein the motor coil and a conductive line printed on a printed circuit board are brought into an electrically conductive state by being attached. 2. A spindle motor in which a coil terminal of a motor coil is passed through a small hole provided in a motor frame and connected to a conductive wire printed on a printed circuit board attached to an outer surface of the motor frame. A small hole through which the coil terminal of the motor coil is passed through the small hole provided in the motor frame is provided, and a clamp made of a conductive material is attached in advance near the connection portion of the conductive wire, and The clamp and the connection portion of the conductive wire are electrically connected to each other, and a surface of the printed circuit board opposite to the clamp is attached to a surface of the motor frame facing the motor coil by an adhesive. The coil terminal of the motor coil is passed through the small hole provided in the motor frame, the coil terminal of the motor coil is passed through the small hole provided in the printed circuit board, and then the coil terminal of the motor coil is inserted into the clamp. By pinched, spindle motor, characterized in that the conductive lines printed on the motor coil and the printed circuit board is electrically conductive. 3. A spindle motor in which a coil terminal of a motor coil is passed through a small hole provided in a motor frame and connected to a conductive wire printed on a printed circuit board attached to an outer surface of the motor frame. A small hole for passing a coil terminal of a motor coil passed through a small hole provided in the motor frame; a clamp made of a conductive material is provided in advance near a connection portion of the conductive wire; A surface of the substrate opposite to the holding member is attached to a surface of the motor frame facing the motor coil by an adhesive, and a coil terminal of the motor coil passed through a small hole provided in the motor frame is printed. After passing through the small hole provided on the substrate, the coil terminal of the motor coil is clamped to the clipping tool, and the clipping tool and the connection portion of the conductive wire are electrically connected. Spindle motor, characterized in that either continue to, or the connection portion between the motor coil terminals and the printed printed conductive lines on the substrate of the coil is connected. 4. A spindle motor in which a coil terminal of a motor coil is passed through a small hole provided in a motor frame and connected to a conductive wire printed on a printed circuit board attached to an outer surface of the motor frame, wherein the printed circuit board is In the vicinity of the connection portion of the conductive wire, a clamp is attached in advance, and the surface of the printed circuit board opposite to the clamp is attached to a surface of the motor frame facing the motor coil by an adhesive. And passing the coil terminal of the motor coil passed through the small hole provided in the motor frame through the small hole provided in the printed circuit board, and then clamping the coil terminal of the motor coil to the clipper. A spindle motor, which is connected to a conductive wire printed on a printed circuit board by soldering or bonding. 5. A rotating device using the spindle motor according to claim 1 as a rotation drive source.