JP2015006079A - Control device integrated rotary electric machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save time and efforts for alignment by forcibly positioning distal ends of frame terminals and distal ends of connector terminals.SOLUTION: A control device 1 of a motor for an electrically-driven power steering device comprises: a housing 6 with which a housing through hole is formed; a frame 3 including a plurality of frame terminals 8; a heat sink 7 with which a heat sink through hole 9 is formed; a control substrate 35 which is accommodated within the housing 6, includes an electronic component and is electrically connected with pedestal ends of the frame terminals 8; an external connection connector 4 including a plurality of connector terminals 13 of which the distal ends are connected with those of the frame terminals 8; and a guide member 2 provided in the heat sink through hole 9 and including a plurality of insertion holes 10. The distal end of each frame terminal 8 and the distal end of each connector terminal 13 are inserted into each insertion hole 2, respectively.

Description

  The present invention relates to a controller-integrated rotating electrical machine in which a controller is integrated with a motor, for example, a motor for an electric power steering apparatus.

  2. Description of the Related Art Conventionally, in a motor for an electric power steering apparatus in which a control device that controls driving of a motor is integrated with the motor, a connection terminal for a control unit that inputs an external signal and a connection terminal for a connector of an external connection connector are connected to each other at the distal ends. (See, for example, Patent Document 1).

Japanese Patent Application No. 2012-118527 (FIGS. 2 and 14)

  In this motor for an electric power steering device, the front ends of a plurality of juxtaposed control connection terminals and the front ends of a plurality of juxtaposed connector connection terminals are individually welded with each other facing each other. There was a problem that it took a lot of time and effort and the workability was poor.

  An object of the present invention is to solve such a problem, and it is easy to adjust the position of the tip of the frame terminal and the tip of the connector terminal of the external connection connector. The object is to obtain a body-type rotating electrical machine.

A control apparatus-integrated dynamoelectric machine according to the present invention includes a housing in which a housing through hole is formed in a housing projecting portion projecting in a radial direction,
A frame having a plurality of frame terminals housed in the housing;
A heat sink that is fixed in surface contact with the frame and has a heat sink through hole formed in a heat sink protrusion protruding in the radial direction;
A control board that is housed in the housing and has an electronic component for computing an external signal from outside the housing and is electrically connected to the base end of the frame terminal;
An external connector having a plurality of connector terminals provided in the housing through-hole and electrically connected at the tip and the tip of the frame terminal;
The heat sink through hole and a guide member having a plurality of insertion holes,
In each insertion hole, the tip of each frame terminal and the tip of each connector terminal electrically connected to the frame terminal are inserted, and the tips are electrically connected to each other. The external signal is transmitted to the control board via a connector terminal and a frame terminal.

  According to the control apparatus-integrated dynamoelectric machine according to the present invention, a plurality of front end portions of each frame terminal and front end portions of connector terminals electrically connected to the frame terminals are inserted into the heat sink through holes of the heater sink. Since the guide member having the insertion hole is provided, the distal end portion of the frame terminal and the distal end portion of the connector terminal are forcibly positioned, and the workability that takes time for alignment is improved.

It is a perspective view which shows the time of seeing the control apparatus of the motor for electric power steering apparatuses of Embodiment 1 of this invention from the external connection connector side. It is a perspective view which shows the time of seeing the control apparatus of FIG. 1 from the heat sink side. It is a disassembled perspective view of the control apparatus of FIG. It is a perspective view which shows the time of seeing the flame | frame of FIG. 1 from the external connection connector side. It is a perspective view which shows the time of seeing the flame | frame of FIG. 1 from the heat sink side. It is a front view which shows the heat sink of FIG. It is a perspective view which shows the time of seeing the guide member of FIG. 1 from the outer side direction of an external connection connector. It is a perspective view which shows the time of seeing the guide member of FIG. 1 from the heat sink side. It is a perspective view which shows the time of seeing the guide member of FIG. 1 from the inner side direction of an external connection connector. It is a bottom view which shows the housing of FIG. It is a perspective view which shows the external connection connector of FIG. FIG. 12 is a perspective view showing the external connection connector of FIG. 11 when inverted in the vertical direction. FIG. 3 is a perspective view showing when the outer cover of FIG. 2 is removed. It is a perspective view which shows the external cover of FIG. FIG. 15 is a perspective view showing the outer cover of FIG. 14 when inverted in the vertical direction. It is principal part sectional drawing of FIG. It is principal part sectional drawing of FIG. It is a disassembled perspective view which shows the motor for electric power steering apparatuses of Embodiment 2 of this invention. It is principal part sectional drawing of FIG.

  Hereinafter, the motor for an electric power steering apparatus according to each embodiment of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding members and parts will be described with the same reference numerals.

Embodiment 1 FIG.
1 is a perspective view of a motor control device 1 for an electric power steering apparatus according to Embodiment 1 of the present invention as viewed from the external connector 4 side, and FIG. 2 is a view of the control device 1 of FIG. FIG. 3 is an exploded perspective view of the control device 1 of FIG.
A control device 1 for a motor for an electric power steering device, which is a rotating electric machine integrated with a control device, incorporated in the electric power steering device, includes a frame 3 and a control board 35 shown in FIGS. Yes. A heat sink 7 shown in FIG. 6 is provided on the housing 6 so that the frame 3 is fixed in surface contact.
The heat sink 7 is provided with a heat sink protrusion 30 protruding in the radial direction. An arc-shaped heat sink through hole 9 is formed in the heat sink protrusion 30.
The guide member 2 shown in FIGS. 7 to 9 is fitted into the heat sink through hole 9.
The guide member 2 is provided with an outer cover 5 shown in FIGS.
Further, as shown in FIG. 10, the holding portion 32 of the external connection connector 4 shown in FIGS. 11 and 12 is fitted into the housing through hole 14 formed in the housing protruding portion 31 protruding in the radial direction. . The housing protrusion 31 has the same shape as the heat sink protrusion 30 and is disposed so as to overlap.

The frame 3 is provided with a plurality of frame terminals 8 extending toward the heat sink 7, frame pins 12, and motor connection terminals 24 connected to a motor (not shown).
The control board 35 is formed with a connection hole 36 into which the base end portion of each frame terminal 8 on the external connection connector 4 side is inserted. By inserting the base end portion of the frame terminal 8 into the connection hole 36, the frame terminal 8 and the electronic component of the control board 35 that controls the drive of the motor are electrically connected.
The guide member 2 is provided with a plurality of rectangular insertion holes 10.
The guide member 2 is provided with a pair of guide positioning holes 11 into which the frame pins 12 are fitted and a pair of arcuate walls 19 on the surface on the housing 6 side, and on the surface opposite to the housing 6. A pair of cover positioning holes 16 into which the cover pins 17 of the outer cover 5 shown in FIG. 15 are fitted are provided.
The guide member 2 is fixed to a predetermined position with respect to the frame 3 by inserting the frame pin 12 into the guide positioning hole 11.
Further, the outer cover 5 is fixed to a predetermined position with respect to the guide member 2 by inserting the cover pins 17 into the cover positioning holes 16.

In the external connection connector 4, the connector terminal 13 extends into the housing 6, and the distal end portion penetrates the insertion hole 10 in the same manner as the frame terminal 8 whose distal end portion penetrates each insertion hole 10 of the guide member 2. . In each insertion hole 10, the distal end portion of the frame terminal 8 and the distal end portion of the connector terminal 13 pass through in pairs.
Each connection terminal portion 15 to which the distal end portion of the frame terminal 8 and the distal end portion of the connector terminal 13 are connected is exposed to the outside from the insertion hole 10 of the guide member 2 as shown in FIG. Each of the connection terminal portions 15 is joined by welding in a state where the distal end portion of the frame terminal 8 and the distal end portion of the external connection connector terminal 13 overlap each other.
Thus, the frame terminal 8 and the electronic component of the control board 35 are electrically connected by electrically connecting the distal end of the frame terminal 8 and the distal end of the external connection connector terminal 13 by welding. The external signal from outside 6 is transmitted to the electronic components of the control board 35 via the frame terminal 8, and the motor is driven based on the signal processed there.

FIG. 16 is a cross-sectional view of the main part of FIG. 13, and the insertion hole 10 of the guide member 2 has a tapered shape whose inner diameter gradually decreases in the direction in which the frame terminal 8 and the connector terminal 13 are inserted.
FIG. 17 is a cross-sectional view of the main part of FIG. 2, in which the guide member 2 is inserted inside the surface of the heat sink 7 and is fitted into the heat sink through hole 9. The sealant 20 is used for sealing.

According to the vehicle control device of this embodiment, each insertion hole 10 of the guide member 2 provided in the heat sink through-hole 9 is electrically connected to the distal end portion of each frame terminal 8 and the frame terminal 8. The tip portions of the connector terminals 13 are inserted, and the tip portions are electrically connected by welding.
Therefore, the tip of each frame terminal 8 and the tip of each connector terminal 13 that is electrically connected to the frame terminal 8 are forcibly positioned. Connection workability is improved.

  In addition, each insertion hole 10 has a tapered shape in which the inner diameter gradually decreases along the insertion direction of each distal end portion of the frame terminal 8 and the connector terminal 13, so that the insertion operation of each distal end portion can be performed smoothly. Welding can be performed in a state where the inserted tip portions face each other, and welding defects can be reduced.

  Further, since the guide member 2 is fitted into the heat sink through-hole 9, foreign matter scattered during welding of the tip portions and foreign matter from the atmosphere enter the housing 6 and cause an electrical failure (short circuit). It can be prevented from occurring.

  Further, since the guide member 2 has the walls 19 along the rows arranged by the plurality of insertion holes 10, the aluminum housing 6, which is a peripheral conductor member, each frame terminal 8, and each connector terminal 13. Can be electrically disconnected from each other.

  Further, since the guide member 2 has the guide positioning hole 11 into which the frame pin 12 is inserted, the guide member 2 can be positioned and fixed at a predetermined position with respect to the frame 3 by a simple insertion operation. It is possible to smoothly insert the distal ends of the frame terminal 8 and the connector terminal 13.

  Further, since the guide member 2 has a cover positioning hole 16 into which a cover pin 17 formed in the outer cover 5 covering the heat sink through hole 9 is inserted, the outer cover 5 can be attached to the heat sink 7 by a simple insertion operation. Can be positioned and fixed at a predetermined position.

  In addition, the guide member 2 is inserted inward of the heat sink 7 and is fitted in the heat sink through hole 9. Since there is a low step between the guide member 2 and the heat sink 7, the sealant 20 is used. When sealing between the outer cover 5 and the heat sink 7, the sealing agent 20 leaking inside is retained on the upper surface of the guide member 2 and contributes to the sealing as it is, so that the sealing performance is improved. .

Embodiment 2. FIG.
18 is an exploded perspective view showing the control device 1 according to Embodiment 2 of the present invention, and FIG. In FIG. 18, the housing 6 and the control board 35 are omitted.
In this embodiment, a pair of guides 23 are fixed to the edge of the frame 3. The guide 23 includes an insertion hole 34 into which the motor connection terminal 24 of the frame 3 and the motor terminal 22 of the motor 21 are inserted, and a guide wall 33 that guides insertion when the motor terminal 22 is inserted into the motor insertion hole 34. Is formed.
Other configurations are the same as those of the vehicle control device 1 of the first embodiment.

  According to the vehicle control apparatus 1 of this embodiment, the motor terminal 22 guided by the guide wall 33 of the guide 23 is inserted into the motor insertion hole 34 and is in surface contact with the motor connection terminal 24. And the workability of welding between the motor terminal 22 and the motor connection terminal 24 is improved.

  In each of the above embodiments, the motor for the electric power steering apparatus has been described as the controller-integrated rotating electric machine, but a generator may be used instead of the motor.

  1 Control device, 2 guide member, 3 frame, 4 external connection connector, 5 external cover, 6 housing, 7 heat sink, 8 frame terminal, 9 heat sink through hole, 10 insertion hole, 11 guide positioning hole, 12 frame pin, 13 connector Terminal, 14 Housing through hole, 15 Connection terminal, 16 Cover positioning hole, 17 Cover pin, 18 Guide part, 19 Wall, 20 Sealant, 21 Motor, 22 Motor terminal, 23 Guide, 24 Motor connection terminal, 30 Heat sink protrusion , 31 Housing protrusion, 32 holding part, 33 guide wall, 34 motor insertion hole, 35 control board, 36 connection hole.

Claims (9)

A housing in which a housing through-hole is formed in a radially protruding housing projecting portion;
A frame having a plurality of frame terminals housed in the housing;
A heat sink that is fixed in surface contact with the frame and has a heat sink through hole formed in a heat sink protrusion protruding in the radial direction;
A control board that is housed in the housing and has an electronic component for computing an external signal from outside the housing and is electrically connected to the base end of the frame terminal;
An external connector having a plurality of connector terminals provided in the housing through-hole and electrically connected at the tip and the tip of the frame terminal;
The heat sink through hole and a guide member having a plurality of insertion holes,
In each insertion hole, the tip of each frame terminal and the tip of each connector terminal electrically connected to the frame terminal are inserted, and the tips are electrically connected to each other. The controller-integrated rotating electrical machine transmits the external signal to the control board via a connector terminal and a frame terminal.   2. The controller-integrated rotating electrical machine according to claim 1, wherein the insertion hole has a tapered shape having an inner diameter that gradually decreases along the insertion direction of the tip portion.   The control device-integrated dynamoelectric machine according to claim 1, wherein the guide member is fitted into the heat sink through hole.   The said guide member is the said external connection connector side, The wall which electrically interrupts | blocks with a surrounding conductor member is provided in the outer side of the row | line | column arranged by the said some insertion hole. The control device-integrated rotating electrical machine according to claim 1.   The guide member has a guide positioning hole into which a frame pin formed in the frame is inserted, and the guide member is positioned and fixed with respect to the frame by inserting the frame pin into the guide positioning hole. The control apparatus-integrated dynamoelectric machine according to any one of claims 1 to 4.   The guide member has a cover positioning hole into which a cover pin formed on an outer cover that covers the heat sink through hole is inserted, and the cover pin is inserted into the cover positioning hole, so that the outer cover The controller-integrated dynamoelectric machine according to any one of claims 1 to 5, which is positioned and fixed with respect to a member.   The guide member is provided in the heat sink through hole so as to be immersed inside a surface of the heat sink, and a sealant is interposed between the outer cover and the guide member at an inner edge portion. The controller-integrated rotating electrical machine according to any one of 1 to 6.   A guide having a motor insertion hole into which the motor connection terminal of the frame is inserted and a guide wall for guiding insertion when the motor terminal is inserted into the motor insertion hole is provided at the edge of the frame. The control device-integrated dynamoelectric machine according to any one of claims 1 to 7.   The controller-integrated rotating electrical machine according to any one of claims 1 to 8, wherein the controller-integrated rotating electrical machine is a motor for an electric power steering device.

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