JP2590649Y2 - Rotating electric machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating electric machine having a printed circuit board on which electronic components such as transistors are mounted on an end flange supporting a rotating shaft of a rotor.

[0002]

2. Description of the Related Art In a rotary electric machine such as a DC brushless motor having a drive circuit using an electronic circuit and a speed control circuit, a rotary shaft of a rotor is supported by a metal end flange.
The printed circuit board on which the electronic components are mounted is screwed to the end flange in a state where the printed circuit board is orthogonal to the rotation axis, and the rotating electric machine body and the electronic circuit portion are integrally assembled. A power transistor or the like that generates a lot of heat among the electronic components is mounted in a state where its heat radiation surface is in contact with a component contact surface provided on an end flange acting as a heat sink.

FIG. 7 shows an example of such a rotating electric machine. In this rotating electric machine, a rotating body 101 in which a rotor 1 is formed substantially in a cup shape, and a permanent magnet 102 on an inner peripheral surface of a peripheral wall portion of the rotating body.
Is attached, and a rotating shaft 104 is fixed to a boss 103 provided at the center of the bottom wall of the rotating body 101. Reference numeral 2 denotes a stator having an armature coil 202 wound around a stator core 201 having a magnetic pole portion facing the magnetic pole of the permanent magnet 102 of the rotor. A metal end flange having a flange portion 301 disposed orthogonal to the rotation shaft 104 and a rotation shaft support portion 302 upright from the flange portion 301 to support the rotor 1 and the stator 2. 3 are provided. The rotating shaft 104 is rotatably supported by a pair of bearings 4 and 4 fitted to the rotating shaft support portion 302 of the end flange, and a fitting formed on the outer peripheral portion on one end side of the rotating shaft support portion 302. The stator 2 is fixed to the rotating shaft support portion 302 by screws 501, 501,... While the inner peripheral portion of the stator core 201 is fitted to the portion and the step portion.

[0004] Reference numeral 6 denotes a printed circuit board on which an electronic component 7 having a large heat generation such as a power transistor constituting an electronic circuit and other electronic components not shown are mounted.
Are attached by screws 502, 502,... Of the flange portion 301 of the end flange in a state perpendicular to the rotating shaft 104. On the outer peripheral side of the flange portion 301, a component mounting portion 303 having a component contact surface 303a located on substantially the same plane as one surface (upper surface) of the printed circuit board 6 is provided. Part 7
Are arranged in a state where the heat radiating surface is in contact with the component contact surface 303a, and the component mounting portion 303 is
It is fixed to. Electronic components such as power transistors 7
Are soldered to the conductive portion of the printed circuit board 6.

In this example, the component mounting portion 303 and the flange portion 301 act as a heat sink, and dissipate the heat generated from the electronic component 7 such as a power transistor.
And the flange portion 301 to transmit the component mounting portion 30
The heat is radiated through the flange 3 and the flange portion 301.

FIG. 8 shows another example of a mounting structure for an electronic component that generates a lot of heat. Although not shown in FIG. 8, the configuration of the main body of the rotating electric machine in this example is shown in FIG. This is similar to the example shown. In the example shown in FIG. 8, an upright portion 304 extending parallel to the rotation axis (not shown) of the rotor is provided as a component mounting portion at the end of the flange portion 301 of the end flange. In this example, the inner side surface of the upright portion 304 is used as a component contact surface 304a.
4a, the screws 503, 50
Are fixed to the standing portion 304 by 3,.

[0007]

In the conventional rotary electric machine shown in FIG. 7, a component mounting portion 303 to which a heat-generating electronic component 7 such as a power transistor is mounted is provided at an end of the flange portion 301 of the end flange. , And extend in a direction perpendicular to the rotation shaft 104. Therefore, the lateral length of the end flange 3 (measured in a direction perpendicular to the rotating shaft 104; the same applies hereinafter) becomes longer, and the outer dimensions of the rotating electric machine including the end flange 301 become larger. There was a problem of becoming.

In the conventional rotary electric machine shown in FIG. 8, the upright portion 304 as a component mounting portion is formed so as to protrude from an end of the flange portion 301 in a direction parallel to the rotary shaft 104. The lateral length of the flange 3 can be reduced. However, in this rotating electric machine, the screw 501 for fixing the stator 2 to the flange 3 and the screw 502 for fixing the substrate 6 to the flange 3 are tightened in the axial direction of the stator, while the electronic components 7 such as a power transistor are tightened. It is necessary to tighten the screw 503 for attaching the screw 50 from a direction perpendicular to the axial direction of the stator.
There has been a problem that the work of tightening 1, 502 and 503 becomes complicated, and the workability of assembling the rotating electric machine is poor.

An object of the present invention is to reduce the outer length of the end flange by reducing the lateral length of the end flange and making the direction of tightening the screws for screwing each component the same. Another object of the present invention is to provide a rotating electric machine having good assembling workability.

[0010]

According to the present invention, a rotating shaft of a rotor is supported on an end flange, and a printed circuit board on which electronic components requiring heat radiation are mounted is screwed to the end flange in a state of being orthogonal to the rotating shaft. The present invention relates to a rotating electric machine having a structure in which the heat radiating surface of an electronic component is stopped and is brought into contact with a component contact surface provided on an end flange.

In the present invention, an upright portion extending parallel to the rotation axis is provided on the end flange, and a side surface inside the upright portion serves as a component contact surface, and the upright portion has an opening at the tip end surface. A screw hole is provided.

The electronic component is arranged with its heat radiating surface in contact with the component contact surface, and is fixed to the upright portion by a fixture fixed to the tip of the upright portion.

The fixing tool used in the present invention comprises a first plate portion having a mounting hole and a second plate portion bent from the tip of the first plate portion to the back side of the first plate portion. It is formed in a shape having integrally. The fixture is arranged with a part of the back surface of the first plate portion along the leading end surface of the upright portion, and the first plate portion is screwed into the screw hole of the upright portion through the mounting hole. It is fastened to the upright part by the fixing attachment screw. In this state, the second plate portion of the fixture elastically contacts the surface of the electronic component on the side opposite to the heat radiation surface, and presses the electronic component toward the component contact surface.

[0014] The first plate portion of the fixing device has an end flange.
Before being fixed to the upright portion, it is bent along a bending line extending substantially parallel to the plate surface of the second plate portion so as to have a convex shape on the back surface side. in this case,
When the fixing tool fixing screw fastens the first plate portion to the upright portion, the head of the fixing tool mounting screw moves the region on both sides of the bending line of the first plate portion toward the tip end surface of the upright portion. The position of the bending line is set so that the second plate portion is displaced toward the electronic component by tightening.

[0015]

As described above, when the upright portion extending in parallel with the rotation axis is provided on the end flange, and the inner side surface of the upright portion is the component contact surface with which the heat radiating surface of the electronic component contacts, Since the lateral length of the flange can be reduced, the outer dimensions of the rotating electric machine can be reduced.

[0016] As described above, when configured to secure the electronic component to the standing part by screwing the first plate portion of the fixture to the tip face of the upright portion, the fixture for fixing the electronic component The tightening direction of the mounting screws can be the same as the tightening direction of the screws for fixing the stator and the printed circuit board. Therefore, the workability of the screw tightening operation at the time of assembling the rotating electric machine can be improved, and the assembling of the rotating electric machine can be facilitated.

As described above, when the electronic component is pressed against the component contact surface by the second plate portion of the fixture and is fixed to the upright portion, the heat generated in the electronic component is transferred to the end flange. Since the heat can be dissipated through the upright portion, the heat dissipated from the electronic component can be improved.

Further, as described above, the first plate portion of the fixture is bent and formed into a convex shape on the back surface side, and the fixing attachment screw is bent along the bending line of the first plate portion. When the area on both sides of the first plate is fastened to the end face side of the upright part, the first plate part
The second plate portion can be displaced toward the electronic component when tightened with the fixture mounting screw, so that the pressing force with which the second plate portion presses the electronic component can be increased. Therefore, before the first plate portion is fastened, the second plate portion can be lightly in contact with the electronic component or slightly separated from the electronic component, and the first plate portion can be fastened. In this state, it is possible to prevent the repulsive force that the second plate portion receives from the electronic component from being transmitted to the first plate portion side, thereby facilitating the positioning of the first plate portion.

[0019]

1 to 4 show a DC brushless motor in which a printed circuit board on which electronic parts constituting a drive circuit, a speed control circuit and the like of the motor are mounted is screwed to an end flange of the motor and provided on the end flange. 1 shows an embodiment in which the present invention is applied to a rotating electric machine in which an electronic component requiring heat dissipation is brought into contact with and fixed to a component contact surface. In the figure, 1 is a rotor of an electric motor, 2 is a stator disposed inside the rotor 1,
3 is an end flange made of a metal material, 4 and 4 are rotors 1.
, A bearing for supporting the rotating shaft 104 on the end flange 3, reference numeral 6 denotes a printed circuit board on which electronic components are mounted, reference numeral 7 denotes an electronic component requiring heat dissipation such as a power transistor, and reference numeral 8 denotes fixing the electronic component 7 to the end flange 3. It is a fixture for.

The rotor 1 has a permanent magnet 102 mounted on the inner peripheral surface of a peripheral wall of a cup-shaped rotor 101 made of a magnetic material. The rotor 1 is rotated by a boss 103 provided at the center of the bottom wall of the rotor 101. The shaft 104 is fixed. Permanent magnet 10
The magnetic field forming regions 2 are magnetized in the radial direction to form a magnet field in which magnetic poles having different polarities are alternately arranged in the circumferential direction.

The stator 2 disposed inside the rotor 1 has:
An annular stator core 201 having a magnetic pole portion facing the magnetic pole of the rotor 1 on an outer peripheral portion, and an armature coil 202 having a predetermined number of phases (for example, three phases) wound around a slot of the stator core.
It consists of

The end flange 3 is made of a metal material such as a light alloy, and has a flange portion 301 arranged perpendicular to the rotary shaft 104 and a rotary shaft support portion provided upright from the flange portion. 302 and an upright portion 304 provided at an end of the flange portion 301 are integrally provided.
The rotating shaft 104 is rotatably supported by a pair of bearings 4 and 4 fitted in the rotating shaft support 302. A fitting portion 3 formed on the outer peripheral portion on one end side of the rotating shaft support portion 302
The inner peripheral portion of the stator core 201 is fitted to 02 a, and the end of the stator core 201 is in contact with a stepped portion 302 b formed at an intermediate portion of the rotating shaft support portion 302. Stator core 201
Are screws 5 that are tightened in a direction parallel to the rotation shaft 104.
., Are fixedly fixed to the rotating shaft support portion 302 by reference numerals 01, 501,.

The electronic component 7 has a state in which a large number of terminals 702 are arranged in a line from one end of a substantially rectangular parallelepiped main body 701 containing a plurality of heating elements such as power transistors constituting a switching circuit of a motor driving circuit. The other side surface orthogonal to the terminal lead-out surface of the main body 701 is a heat radiation surface 701a.

The upright portion 304 of the end flange 3 constitutes a component mounting portion for mounting an electronic component requiring heat radiation.
In order to reduce the length in the direction perpendicular to the axis 4, the flange portion 301 is provided so as to extend from the end of the flange portion 301 in parallel with the rotating shaft 104, and the inner side surface of the upright portion 304 is in contact with the component. This is the surface 304a.

The electronic component 7 is arranged with its heat radiation surface 701a in contact with the component contact surface 304a of the upright portion 304, and is fixed to the upright portion 304 by the fixture 8.
The tips of the plurality of terminals 702 of the electronic component are soldered to the conductive portion of the printed circuit board 6.

The electronic component 7 is mounted on the upright portion 304 of the end flange.
Is made of an elastic material such as a spring steel plate, and as shown in FIG. 3, is arranged with a part of the back surface 801A along the front end surface 304b of the upright portion 304 of the end flange. A first plate portion 801 and a second plate portion bent from the tip of the first plate portion 801 at an acute angle α to the first plate portion before being fixed to the upright portion 304. 80
2 and a bent portion 803 that is bent from the rear end of the first plate portion 801 in a direction perpendicular to the rear end of the first plate portion. Are the fixing device fixing screws 50
3 are provided with mounting holes 801a, 801a for passing through. Although not shown, the upright portion 3 of the end flange 3
04 is provided with screw holes that can be aligned with the mounting holes 801a, 801a, and that are open in the front end surface 304b of the upright portion.

The first plate portion 801 is provided with fixing fixture mounting screws 5.
The bent line 80 extending in a direction substantially parallel to the plate surface of the second plate portion 802 so as to have a shape of an inverted letter that is convex on the rear surface side before being fastened to the upright portion 304 by the third plate portion 03.
4 is formed by bending. In this case, taken fixture
When the attaching screw fastens the first plate portion 801 to the upright portion 304, the head of the fixture mounting screw 503 is attached to the first plate portion 80.
The position of the bending line 804 is set so that the regions on both sides of the one bending line 804 are fastened to the tip end side of the upright portion 304. In the present embodiment, the bending line 804 is
The positions of the bending lines are set so as to pass through the centers of 01a and 801a. In the present embodiment, the second plate portion 8
The distal end 802a of the electronic component 7 is formed to have an outwardly curved shape, and the distal end 802a contacts the surface of the electronic component 7 on the side opposite to the heat radiation surface.

The acute angle α formed by the first plate portion 801 and the second plate portion 802 is, as shown in FIG.
When the first plate portion 801 is fastened to the upright portion 304 with the fixing member mounting screw 503, the first plate portion 801 is aligned with the position of the screw hole provided in the distal end surface 304b of the upright portion 304.
Contact portion 3 of the tip 802a of the plate portion and the upright portion 304
The distance d between the electronic component 7 and the heat radiation surface 701a of the electronic component 7 is set to be smaller than the thickness (thickness of the main body 701) between the heat radiation surface 701a and the surface opposite to the heat radiation surface.

FIG. 3 shows a procedure for fixing the electronic component 7 to the upright portion 304 of the end flange by the fixture 8 in this embodiment. When assembling the rotating electric machine of the present embodiment, first, as shown in FIG.
Are fixed to the end flange 301 by screws 502, 502,.... At this time, the heat radiation surface 701a of the electronic component 7 is brought into contact with the component contact surface 304a of the upright portion 304 of the end flange, and the first plate portion 801 of the fixing tool 8 is brought into contact with the tip of the upright portion 304. Then, the third plate portion 803 is brought into contact with the end of the surface opposite to the component contact surface of the upright portion 304, and the mounting holes 801a, 801a are inserted into the screw holes provided in the upright portion. Align. In this state, the distal end portion 802a of the second plate portion 802 of the fixture is slightly in contact with the surface 701b of the electronic component 7 on the side opposite to the heat radiation surface 701a or is slightly away from the electronic component. The first plate portion 801 is the upright portion 30
4 is inclined with respect to the front end surface 304b. At this time, no repulsive force due to the spring property of the second plate portion acts on the first plate portion 801, so that the first plate portion 801 can be easily positioned. Then the mounting hole 801a, the solid into the screw hole of the standing portion through 801a
The first plate portion 801 is fastened to the distal end surface 304b of the upright portion by screwing the fixing tool mounting screws 503 and 503.
When the fixing fixture mounting screws 503 and 503 are tightened, the heads 503 a and 503 a of the screws are positioned on both sides of the bending line 804 of the first plate portion 801, and the front end surface 304 of the upright portion 304.
As shown in FIGS. 4A and 4B, the second plate portion 802 is displaced toward the electronic component to tighten the first plate portion 801 and the second plate portion. The fixture is elastically deformed so that the angle formed by the fixing member 802 becomes large (α → α ′, α ′> α). Therefore, the tip portion 802a of the second plate portion makes strong elastic contact with the surface 701b of the electronic component 7 opposite to the heat radiation surface,
The second plate portion 802 strongly presses the electronic component 7 toward the component contacting surface 304 a of the upright portion 304 to push the electronic component 7 to the upright portion 3.
04 fixed. To ensure tight areas on both sides of the fold line 804 by a fixture mounting screws 503, in this embodiment, the washer 9 between the first plate portion 801 of the head portion and the fixture of the screws 503 Is interposed. Instead of the washer, a plate member provided with a hole through which the screw passes may be used, and the first plate portion 801 may be directly tightened with the head of the screw without using a washer or the like.

According to the above-described embodiment, the heat generated from the electronic component 7 that requires heat radiation is transmitted to the upright portion 304 and the flange portion 301 of the end flange 3 acting as a heat sink. Dissipated through section 301. Solid fixing the fixture 8 to the upright portion 304
The fixing tool mounting screws 503 and 503 are screws 501 and 505 for fixing the stator 2 to the rotating shaft support portion 302 of the end flange.
And the printed circuit board 6 are screwed in the same direction as the screws 502, 502,... For screwing the printed circuit board 6 to the flange portion 301 of the end flange, so that the workability of screw tightening at the time of assembly work is improved. it can. The upright portion 304 for mounting the electronic component 7 requiring heat radiation is provided so as to extend from the end of the flange portion 301 of the end flange 3 so as to extend in parallel with the rotating shaft 104, so that the length of the end flange 3 in the lateral direction is provided. (A length measured in a direction perpendicular to the rotating shaft 104) can be reduced, and the rotating electrical machine can be prevented from becoming large.

In the above embodiment, the fixing member 8 is formed of an elastic plate such as a spring steel plate. However, the fixing member may be formed of a synthetic resin having elasticity and low thermal deformation into a required shape. good.

In the above embodiment, the bending line 804 of the first plate portion 801 is set so as to pass through the center of the mounting holes 801a, 801a. However, the first plate portion is erected by the fixing device mounting screw 503. When the screw is fastened to the part 304, the screw may tighten the region on both sides of the bending line.
a, 801a need not pass through the center. Also mounting fixture
When a plate member such as a washer is interposed between the head of the screw 503 and the first plate portion 801, even if the bending line 804 is set at a position slightly deviated from the mounting holes 801a, 801a. good.

As described above, in the present invention, the fixture
Although the first plate portions 801 of the are folded molded, 5
(A) The first plate portion 801 that is not bent and formed as shown in (A), and the first plate portion 801 is formed such that the first plate portion 801 forms an acute angle α with the first plate portion with respect to the first plate portion. Back side of plate part 80
It is also conceivable that the electronic component is fixed to the upright portion using a fixture having the second plate portion 802 bent to the 1A side.
You.

Further , as shown in FIG. 5B , the first plate portion 801 is bent along a bending line 804 'set at a position where the first plate portion 801 is not tightened by the fixing tool mounting screw 503 . It is also conceivable to use a fixture.

When a fixing tool as shown in FIG. 5A or 5B is used, the mounting hole 801 of the first plate portion 801 is also used.
When the first plate portion 801 is brought into close contact with the distal end surface of the upright portion 304 by aligning the first plate portion 801a with the screw hole provided in the upright portion 304, the fixture 8 is elastically deformed and the second plate portion 801a is deformed. Part 80
2 and the length of the first plate 801 from the rear end to the front end so that the electronic component 2 presses the electronic component with a predetermined pressure.
The electronic component can be fixed by setting the angle α between the first plate portion 802 and the second plate portion 802 in advance.

However, FIG. 5A or FIG.
Tighten the screws when using the fixings as shown
In the state before, a spring force acts on the first plate portion 801.
First, the mounting holes 801a, 801a of the first plate
It is easy to perform the work of aligning with the screw holes of the upright section 304.
A problem arises.

On the other hand, the embodiment shown in FIGS.
As in the example, the first plate portion 801 of the fixing device is
4 and bend along the fixing screws 503 and 503
To tighten the area on both sides of the fold line
And before the screws 503 and 503 are tightened,
Since almost no spring force acts on the first plate portion 801, the first
The mounting holes 801a, 801a of the plate
It is possible to easily perform the work of aligning with the screw hole of 04
it can.

In the above embodiment, the rotating electric machine is a DC brushless motor, and the upright portion 3 provided on the end flange is provided.
Although the case where the electronic component 7 requiring heat dissipation fixed to 04 is a transistor or the like used in the drive circuit of the electric motor is taken as an example, the present invention generally supports the rotating shaft of the rotor on the end flange, The printed circuit board on which the electronic components requiring heat dissipation are mounted is screwed to the end flange in a state perpendicular to the rotation axis, and the heat dissipating surface of the electronic component requiring discharge contacts the component contact surface provided on the end flange. The present invention can be applied to a rotating electric machine to be mounted.

In the above embodiment, the second plate portion 802 of the fixture 8 is bent so as to form an acute angle α with the first plate portion 801. However, as shown in FIG. 2 plate parts 8
In the case where the protruding portion 802b protruding toward the electronic component is formed on the second plate 02, the second plate portion 802 may be bent so as to form an angle of 90 degrees or an obtuse angle with the first plate portion 801.

[0040]

As described above, according to the present invention, the upright portion extending parallel to the rotation axis is provided on the end flange, and the inner side surface of the upright portion is brought into contact with the heat radiating surface of the electronic component. Since the component contact surface is used, the lateral length of the end flange can be reduced, and the outer dimensions of the rotating electric machine can be reduced.

According to the present invention, the electronic component is fixed to the upright portion by screwing the first plate portion of the fixture to the tip end surface of the upright portion. The direction in which the screws are tightened can be the same as the direction in which the screws for fastening the stator and the printed circuit board are screwed. Therefore, the workability of the screw tightening operation at the time of assembling the rotating electric machine can be improved, and the assembling of the rotating electric machine can be facilitated.

Further, according to the present invention, the electronic component is pressed against the component contact surface by the second plate portion of the fixture and is fixed to the upright portion. The heat can be dissipated through the upright portion, and the heat dissipated from the electronic component can be improved.

[0043] According to or the present invention, the first plate portion of the fastener molded bent in a convex shape on the back side, screw on both sides of the region of the upright portion of the first plate portion of the folding line Since the second plate portion is displaced toward the electronic component and pressed against the electronic component when tightened to the distal end surface side, the second plate portion is not fastened before the first plate portion is fastened. Lightly touch the electronic components,
Alternatively, the first plate portion can be slightly separated from the electronic component to prevent a spring force from acting on the first plate portion before the first plate portion is fastened. Can be easily positioned.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view of a fixture used in the embodiment of FIG.

FIGS. 3A and 3B show a procedure of fixing an electronic component by a fixing tool in the embodiment of FIG. 1, wherein FIG. 3A is a perspective view showing a state before fixing, and FIG. 3B is a state after fixing. It is a perspective view.

FIGS. 4A and 4B are explanatory diagrams showing changes in the shape of the fixture when the fixture is fastened.

FIGS. 5A and 5B are perspective views showing different examples of the fixing tool used in the reference example .

FIG. 6 is a perspective view showing another modification of the fixing device used in the present invention.

FIG. 7 is a sectional view showing an example of a conventional rotating electric machine.

FIG. 8 is a side view showing a portion of another conventional rotating electrical machine different from the example of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Rotor 104 Rotation shaft 2 Stator 3 End flange 304 Standing part 304a Parts contact surface 304b Tip surface of standing part 503 Fixing fixture screw 6 Printed circuit board 7 Electronic component requiring heat dissipation 701a Electronic component heat dissipation surface 8 Fixing Tool 801 First plate portion 802 Second plate portion 804 Bending line

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H02K 5/00-5/26 F16B 1/00-47/00

Claims (1)

(57) [Scope of request for utility model registration] 1. A rotating board of a rotor is supported on an end flange, and a printed circuit board on which an electronic component requiring heat radiation is mounted is screwed to the end flange in a state of being orthogonal to the rotating shaft. Wherein the heat radiating surface is brought into contact with a component contact surface provided on the end flange, wherein the end flange is provided with an upright portion extending parallel to the rotating shaft, and a side surface inside the upright portion. The upright portion is provided with a screw hole opened at the tip end surface thereof, and the electronic component is disposed with its heat dissipation surface in contact with the component contact surface, The fixture is fixed to the upright portion by a fixture fixed to the tip of the upright portion. The fixture is a first plate portion having a mounting hole and a first plate portion from the tip end of the first plate portion. The second bent to the back side
State of the plate portion is formed in a shape having integrally and placed along a portion of the back surface of the first <br/> plate portion on the distal end surface of the standing portion
Then, the first plate portion is fastened to the distal end surface of the upright portion by a fixture mounting screw screwed into the screw hole of the upright portion through the mounting hole , and the first plate portion of the fixture is Before being fixed to the upright
In the state described above, the second
Fold along the bending line that extends almost parallel to the plate surface
And the fixing fixture mounting screw is
When the plate portion is fastened to the upright portion, the fixture is attached.
The area on both sides of the bending line of the first plate part is
The second plate is fastened to the end face side of
Position of the bending line so that it can be displaced toward the
The rotating electric machine wherein the second plate portion is set and elastically contacts the surface of the electronic component opposite to the heat dissipation surface to press the electronic component toward the component contact surface.