JP2009093956A - Fixing structure for female terminal and motor unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixing structure for a female terminal, preventing firm fixing of a movable connection piece caused by flowing-in of a melted solder when soldering the female terminal on a circuit board with a movable connection piece movable in response to insertion of a male terminal and attaining stable insertion of the male terminal. <P>SOLUTION: The female terminal 55 is provided with: a leaf spring 61 (movable connection piece) brought into press contact with the male terminal 17 by obtaining elastic force movable in response to insertion of the male terminal 17; and a pawl 62 (fixing section) fixed by soldering on the circuit board 51. A window section 63 and a bending-up piece 64 for restraining flowing of the melted solder 65 from the pawl 62 to the leaf spring 61 are arranged between the pawl 62 and the leaf spring 61. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is a female terminal fixing structure having a movable connection piece that moves with the insertion of a male terminal and presses and contacts the male terminal, and a fixing part for fixing to a circuit board by soldering, In addition, the present invention relates to a motor device integrally including a circuit board having the female terminal.

  When the female terminal is fixed to the circuit board, for example, as disclosed in Patent Document 1, the claw part provided on the female terminal is inserted into the mounting hole of the circuit board, and the claw part is formed on the back surface after the insertion. Generally, a fixing structure for fixing by soldering is used.

By the way, like a female terminal currently disclosed by patent document 1, a leaf | plate spring is attached to a female terminal for the purpose of facilitating insertion and insertion of a male terminal, pressing and contacting a male terminal and ensuring electrical connection. Some are provided with a section.
JP 2007-89267 A

  However, in the case where the free end side of the leaf spring portion is located near the claw portion as in the female terminal of Patent Document 1 described above, the molten solder when soldering on the back surface of the circuit board is the circuit board. However, depending on the case, it may reach the free end side of the leaf spring portion through the female terminal.

  When the solder reaches the free end side of the leaf spring portion in this way, the free end side of the leaf spring portion may be fixed by the solder and the elastic deformation of the leaf spring portion may be hindered. A situation that makes it difficult to insert the mold terminal occurs.

  The present invention has been made in order to solve the above-mentioned problems, and its purpose is to melt when soldering a female terminal having a movable connecting piece that moves with insertion of the male terminal to a circuit board. Fixing structure of female terminal capable of preventing fixation of movable connecting piece due to solder flow and stabilizing insertion of male terminal, and motor integrally including circuit board having the female terminal To provide an apparatus.

  In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that a movable connecting piece that obtains an elastic force by moving in accordance with insertion of a male terminal and is in press contact with the male terminal, and soldered to a circuit board A female terminal fixing structure having a fixing part for fixing at a position between the fixing part and the movable connecting piece, and suppressing the flow of molten solder from the fixing part toward the movable connecting piece. The gist of the invention is that a flow suppressing part is provided.

  According to the present invention, the female terminal is provided with a movable connection piece that is elastically moved by insertion of the male terminal and is brought into press contact with the male terminal, and fixed for being fixed to the circuit board by soldering. And a flow suppressing portion is provided between the fixed portion and the movable connecting piece. Then, when soldering the fixed portion of the female terminal, the flow of molten solder from the fixed portion toward the movable connecting piece is suppressed by the flow suppressing portion provided between the fixed portion and the movable connecting piece. Accordingly, the movable connecting piece is prevented from being fixed due to the flow of molten solder, and the elastic deformation of the movable connecting piece due to the insertion of the male terminal is prevented from being obstructed.

  According to a second aspect of the present invention, in the fixing structure of the female terminal according to the first aspect, the flow suppressing portion is disposed at least on the shortest straight line connecting the fixed portion and the movable connecting piece. The gist.

  In this invention, the flow suppression part is disposed at least on the shortest straight line connecting the fixed part of the female terminal and the movable connecting piece. Thereby, the flow of the molten solder which goes to a movable connection piece from a fixed part can be suppressed effectively.

  According to a third aspect of the present invention, in the female terminal fixing structure according to the first or second aspect, the flow suppressing portion is a window portion or a protruding portion formed integrally with the female terminal. The gist.

In the present invention, the flow suppressing portion is a window portion or a protruding portion, and is integrally formed with the female terminal, so that it does not require a separate part and can be handled with a simple configuration such as a window portion or a protruding portion.
According to a fourth aspect of the present invention, in the fixing structure of the female terminal according to the third aspect, the window portion and the protruding portion are formed by bending a cut and raised piece provided on the female terminal toward the movable connecting piece. The gist is that both were formed.

  In the present invention, the cut and raised piece itself is formed as a protruding portion by bending the cut and raised piece provided on the female terminal toward the movable connecting piece, and an opening formed by the cut and raised portion is formed as a window portion. Accordingly, the flow of the molten solder can be more effectively suppressed by both the window portion and the protruding portion, and both of them can be easily formed by merely raising a part of the female terminal.

  According to a fifth aspect of the present invention, in the female terminal fixing structure according to any one of the first to fourth aspects, the fixing portion includes a plurality of fixing portions, and the flow suppressing portion includes the plurality of fixing portions. The gist is that it was provided correspondingly.

  In this invention, when there are a plurality of fixing portions of the female terminal, the flow suppressing portion is provided corresponding to the plurality of fixing portions. That is, it is possible to individually form a flow suppressing portion that matches each fixed portion of the female terminal, and it is possible to reduce the size of the flow suppressing portion while effectively suppressing the flow of molten solder.

  A sixth aspect of the present invention is the female terminal fixing structure according to any one of the first to fifth aspects, wherein the fixing portion is a claw portion through which an attachment hole provided in the circuit board is inserted. The gist of the invention is that it is soldered to the claw portion on the back side after the circuit board is inserted.

  In this invention, the female terminal is provided with a claw portion through which the mounting hole provided in the circuit board is inserted as a fixing portion, and is soldered to the claw portion on the back surface side after the circuit board is inserted. Fixed. In the female terminal of this configuration, since the solder terminal is soldered to the claw portion on the back surface side inserted through the circuit board, it is difficult for the molten solder to flow from the claw portion to the movable connection piece. By providing the flow suppressing portion with respect to the terminal, it is possible to more reliably prevent the movable connecting piece from being fixed due to the flow of molten solder.

  According to a seventh aspect of the present invention, a drive circuit device that controls driving of the motor unit is integrally provided, and the male terminal provided on the motor unit side and the drive circuit device are configured. A motor device having a configuration in which the motor unit and the drive circuit device are electrically connected by connection to a female terminal provided on a circuit board, wherein the female terminal is any one of claims 1 to 6. The gist of the invention is that it is fixed on the circuit board with the fixing structure according to claim 1.

  In the present invention, when the female terminal is fixed to the circuit board by soldering, it is possible to prevent the movable connection piece of the female terminal from flowing in by molten solder, so that the motor unit having the male terminal, The electrical connection with the drive circuit device having the female terminal is smoothly performed.

  According to the present invention, when soldering a female terminal having a movable connection piece that moves along with the insertion of the male terminal to a circuit board, the movable connection piece is prevented from sticking due to the flow of molten solder. It is possible to provide a female terminal fixing structure capable of stabilizing the insertion of the motor and a motor device integrally including a circuit board having the female terminal.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
FIG. 1 shows an axial sectional view of an actuator 1 according to the present embodiment. The actuator 1 of the present embodiment is provided in a vehicle headlight device (not shown), and adjusts the optical axis of the headlight. The actuator 1 includes a motor unit 10, an output unit 30 driven by the driving force of the motor unit 10, and a drive circuit unit 40 that controls the driving of the motor unit 10.

  First, the motor unit 10 will be described. The motor unit 10 of this embodiment is a stepping motor. The motor housing 11 constituting the motor unit 10 has a bottomed cylindrical shape having a notch 11b on the side wall 11a. A synthetic resin housing cover 12 is provided in the opening of the motor housing 11, and the motor unit 10 is fixed to the housing cover 12.

  An annular stator 13 is fixed to the inner peripheral surface of the motor housing 11. The two stator cores 14 constituting the stator 13 are arranged side by side in the axial direction, and the cross-sectional shapes cut along the radial direction are respectively U-shaped. A coil bobbin 15 made of an insulating synthetic resin and having a U-shaped cross-section cut along the radial direction is disposed inside the U-shape of each stator core 14. A winding 16 wound around the coil bobbin 15 is accommodated inside the U-shape formed by each coil bobbin 15. The winding 16 generates a rotating magnetic field when a drive current is supplied.

  In the coil bobbin 15, base ends of a plurality of male terminals 17 made of a conductive metal material and having a substantially strip shape are fixed at positions corresponding to the notches 11 b of the motor housing 11. Each male terminal 17 has a portion extending along the axial direction by being bent twice in the shape of a crank in the vicinity of the base end portion, and the distal end side thereof has a rotating shaft 22 of the rotor 21 described later. Extends along a direction perpendicular to the plane S1 including the rotation axis L1. In FIG. 1, the plane S1 is a plane perpendicular to the paper surface. And the front-end | tip part of each male terminal 17 protrudes toward the outward of the motor housing 11 from the notch part 11b of the motor housing 11. FIG. The ends of the windings 16 are fixed to the male terminals 17 by caulking, whereby the male terminals 17 and the windings 16 are electrically connected.

  A rotor 21 is disposed on the radially inner side of the stator 13 so as to be rotatable with respect to the motor housing 11. The rotation shaft 22 constituting the rotor 21 is formed with an insertion hole 22a penetrating along the axial direction at the center in the radial direction. The rotary shaft 22 is a shaft formed by a bearing 23 disposed in the radial center of the bottom 11c of the motor housing 11 and a bearing 24 disposed in a position facing the bearing 23 in the housing cover 12 in the axial direction. It is supported. A substantially cylindrical magnet 25 magnetized is fixed to the outer peripheral surface of the rotating shaft 22. A screw portion 22b is formed at a position near the housing cover 12 on the inner peripheral surface of the rotating shaft 22, that is, the surface constituting the insertion hole 22a. Such a rotor 21 is rotated by a rotating magnetic field generated by the winding 16.

  Next, the output unit 30 will be described. About half of the output shaft 31 constituting the output unit 30 in the axial direction is accommodated in the insertion hole 22a. A screw portion 31a that is screwed with the screw portion 22b is formed on the outer peripheral surface of the portion of the output shaft 31 that is accommodated in the insertion hole 22a. On the other hand, a portion of the output shaft 31 that is not accommodated in the insertion hole 22 a protrudes from the through hole 12 a formed in the housing cover 12 toward the outside of the motor unit 10. An output shaft cover 32 is attached to a portion of the output shaft 31 that protrudes toward the outside of the motor unit 10 so that the output shaft 31 cannot rotate in the circumferential direction and cannot be removed. The tip of the output shaft 31 is connected to the vehicle headlight device via the output shaft cover 32. A flange portion 32a extending outward in the radial direction is formed at the end of the output shaft cover 32 on the motor portion 10 side.

  A substantially cylindrical accommodating portion 33 is formed around the periphery of the through-hole 12 a so as to surround the outer peripheral portion of the output shaft cover 32. The housing portion 33 holds the output shaft cover 32 so that rotation in the circumferential direction relative to the housing portion 33 is impossible and movement in the axial direction is allowed. A retaining ring 34 is attached to the distal end side of the housing portion 33.

  In such an output unit 30, when the rotor 21 rotates, the output shaft 31 having a screw portion 31 a that engages with a screw portion 22 b formed on the rotary shaft 22 in accordance with the rotation direction of the rotor 21. It is moved along the axial direction. When the output shaft 31 is moved in the protruding direction, when the output shaft 31 is moved by a predetermined distance, the flange portion 32a comes into contact with the retaining ring 34, and the output shaft 31 is further moved in the same direction. Movement is restricted.

  Next, the drive circuit unit 40 will be described. The circuit unit side housing 41 constituting the drive circuit unit 40 is made of synthetic resin and is arranged so as to close the notch portion 11b of the motor housing 11. The circuit unit side housing 41 includes a circuit housing portion 42 having a quadrangular shape when viewed from a direction perpendicular to the plane S1 including the rotation axis L1 of the rotation shaft 22, and the connector portion is integrated at a location not shown. Is formed. The connector unit receives power from a vehicle battery (not shown) and supplies a drive current for rotational driving to the motor unit 10 via the drive circuit unit 40.

  The circuit housing portion 42 is provided with a circuit housing recess 43 having a rectangular cross section that opens toward the outside in the radial direction of the motor unit 10 (opens in a direction perpendicular to the plane S1). An opening formed across the housing cover 12 is closed by a lid portion 44 disposed in parallel to the plane S1 after the drive circuit device 50 described later is accommodated. A terminal receiving recess 45 having a square cross section that opens in the same direction as the opening direction of the receiving recess 43 is formed at the bottom of the circuit receiving recess 43. The male terminal 17 is inserted into each terminal receiving recess 45 through an insertion hole 45a at the bottom.

  On the side wall 46 of the circuit housing portion 42, a positioning step 46 a is formed at an intermediate position in the height direction on the inner side surface of the side wall 46 by reducing the plate thickness from the opening of the circuit housing recess 43. Incidentally, the side wall 46 on the side in contact with the housing cover 12 is formed such that the opening side end face of the circuit accommodating recess 43 is at the same height as the positioning step 46a. On the positioning step 46a, the circuit board 51 of the drive circuit device 50 is disposed, and the circuit board 51 is positioned in the housing recess 43. As a result, the circuit board 51 of the drive circuit device 50 arranged on the positioning step 46a is positioned and mounted so as to be parallel to the plane S1.

  The drive circuit device 50 accommodated in the circuit accommodating portion 42 controls energization to control the driving of the motor portion 10. The circuit board 51 of the drive circuit device 50 has a rectangular plate shape corresponding to the circuit housing recess 43. A plurality of circuit elements 52 for controlling driving of the motor unit 10, that is, for controlling energization to the windings 16, are mounted on the circuit board 51. The circuit board 51 is electrically connected to the connector (not shown) for receiving power supply from the outside, and the male terminal 17 is positioned when the board 51 is positioned on the positioning step 46a. The female terminals 55 stand upright so as to be perpendicular to the circuit board 51. By inserting the male terminals 17 into these female terminals 55, the drive circuit device 50 and the motor unit 10 are electrically connected.

Here, the female terminal 55 will be described in detail with reference to FIGS.
The female terminal 55 is formed by bending a single metal plate having conductivity. The female terminal 55 has a cylindrical portion 60 having a rectangular cylindrical shape by four side wall portions 56 to 59. The lower end surface of the cylindrical portion 60, that is, the end surface on the circuit board 51 side is formed flat. In addition, the cylinder part 60 is formed in the thickness which can be inserted in the said terminal accommodating recessed part 45 (refer FIG. 1). Further, the dimension between the opposing side wall parts 56 and 58 is longer than the thickness of the male terminal 17, and the dimension between the opposing side wall parts 57 and 59 is sufficiently longer than the width of the male terminal 17.

  As shown in FIG. 2B, chamfered guide surfaces 57a and 59a are provided at the front end portions (the end portions opposite to the circuit board 51) of the pair of side wall portions 57 and 59 facing each other. It has been. The guide surfaces 57a and 59a are planar. Further, as shown in FIG. 2A, leaf springs that are folded back from the upper end portion toward the inside of the cylindrical portion 60 and extend to the base end portion side are provided on the other side wall portions 56 and 58, respectively. Each part 61 is formed. Each leaf spring portion 61 has a substantially square shape when viewed from the side, and a contact convex portion 61a is formed on the protruding portion of the square shape. The front end portion 61b that is a free end of each leaf spring portion 61 is in contact with the projecting portions 56a and 58a that are convex on the inner side of the side wall portions 56 and 58, respectively. When the male terminal 17 is inserted into the cylindrical portion 60 from the distal end side of the female terminal 55, these two leaf spring portions 61 sandwich the male terminal 17 at each contact convex portion 61a with its elastic force. .

  Further, as shown in FIGS. 2A to 2C, the base end portion of the side wall portions 56 and 58 on the side having the leaf spring portion 61 is opposite to the extending direction of the side wall portions 56 and 58 from the end surface. Two claw portions 62 extending in the direction are formed in each of the side wall portions 56 and 58. There are a total of four claw portions 62 (only two are shown in FIGS. 2 (a) and 2 (b)), and each side wall portion 56, 58 is provided in the vicinity of each corner portion of the cylindrical portion 60 having a rectangular cylindrical shape. Two are arranged with a predetermined distance from each other. On the other hand, the circuit board 51 has four attachment holes 51a (only two are shown in FIG. 2A) through which the respective claw portions 62 are inserted when the female terminal 55 is assembled to the circuit board 51. ) Penetrates in the thickness direction of the substrate 51.

  Further, in the vicinity of the claw portions 62 at the base end portions of the side wall portions 56 and 58, a window portion 63 having a square shape equivalent to the width dimension of the claw portion 62 is formed. A total of four are provided in one female terminal 55. Each window part 63 is arranged on a straight line that goes in the direction opposite to the extending direction of each claw part 62, in this case, on the shortest straight line that connects each claw part 62 and the leaf spring part 61. The window portion 63 is formed by bending a square cut and raised piece 64 that leaves one side of the base end side of the side wall portions 56 and 58 to the inside of the cylindrical portion 60 at a substantially right angle.

  In the female terminal 55 configured as described above, each claw portion 62 is inserted into each mounting hole 51a of the substrate 51 so that the base end surface of the cylindrical portion 60 is in contact with the circuit substrate 51. It is bent to face each other and attached to the circuit board 51. The female terminal 55 is fixed in an upright state in the vertical direction of the circuit board 51 by electrically and mechanically fixing the claws 62 bent on the back side of the circuit board 51 with the solder 65.

  At the time of this soldering, the melted solder 65 from the back side of the circuit board 51 wraps around the mounting hole 51a of the board 51 and the cylinder part 60 side which is the main body of the female terminal 55 by the action of capillary action or the like. . In this case, further flow of the molten solder 65 is suppressed by the window portions 63 provided at positions corresponding to the respective claw portions 62. Further, since the cut and raised piece 64 is bent and protrudes on the inner side where the leaf spring portion 61 is provided, further flow of the molten solder 65 is more reliably suppressed by both of them. That is, the window portion 63 and the cut and raised piece 64 function as a flow suppressing portion that suppresses the flow of the molten solder 65 from the claw portion 62 toward the leaf spring portion 61. In this way, the flow of the molten solder 65 into the distal end portion 61b of the leaf spring portion 61 is suppressed, so that the elastic deformation of the leaf spring portion 61 due to the insertion of the male terminal 17 is prevented from being obstructed. The In particular, as in the present embodiment, when the leaf spring portion 61 and the side wall portions 56 and 58 (projecting portions 56a and 58a) are in contact with each other, inflow of the molten solder 65 due to capillary action is more likely to occur between them. Therefore, the significance of suppressing the flow of the molten solder 65 by the window portion 63 and the cut and raised piece 64 is great.

  As shown in FIG. 1, when the drive circuit device 50 configured as described above is mounted on the circuit unit side housing 41, the drive circuit device 50 has a circuit so that the female terminal 55 side faces the motor unit 10 side. It is inserted into the housing recess 43. At this time, the circuit board 51 of the drive circuit device 50 is inserted so as to be parallel to the plane S1 including the rotation axis L1 of the rotation shaft 22, which means that the female terminal 55 and the male terminal 17 are connected to each other. The connection direction is the direction in which the male terminal 17 is inserted into the female terminal 55, and the terminals 17 and 55 are connected simultaneously with the insertion of the drive circuit device 50 into the circuit housing recess 43. In this case, the female terminal 55 is configured to come into pressure contact with the male terminal 17 by moving the leaf spring portion 61 as the male terminal 17 is inserted. Since the flow of the solder 65 at the time of soldering the terminal 55 prevents the leaf spring portion 61 from being fixed, the insertion of the male terminal 17 for each product is stable. The circuit board 51 of the drive circuit device 50 is disposed so as to contact the positioning step 46a in the circuit housing recess 43, and is disposed in parallel with the plane S1. Thereafter, the opening of the circuit accommodating recess 43 is closed by the lid portion 44, and the drive circuit portion 40 is assembled integrally with the motor portion 10.

Next, characteristic effects of the present embodiment will be described.
(1) In the present embodiment, the female terminal 55 provided on the drive circuit device 50 side obtains an elastic force by moving along with the insertion of the male terminal 17 on the motor unit 10 side, and the male terminal 17 A leaf spring portion 61 as a movable connecting piece that makes pressing contact and a claw portion 62 as a fixing portion that is fixed to the circuit board 51 by soldering are provided. Between the claw portion 62 and the leaf spring portion 61 of the female terminal 55, a window portion 63 and a cut and raised piece 64 are provided for suppressing the flow of the molten solder 65 from the claw portion 62 toward the leaf spring portion 61. It has been. Therefore, when soldering to the claw part 62 of the female terminal 55, the leaf spring part is separated from the claw part 62 by the window part 63 and the cut-and-raised piece 64 provided between the claw part 62 and the leaf spring part 61. The flow of the molten solder 65 toward 61 is suppressed. As a result, it is possible to prevent the leaf spring portion 61 from being fixed due to the flow of the molten solder 65, and to prevent the elastic deformation of the leaf spring portion 61 accompanying the insertion of the male terminal 17 from being obstructed. It is possible to stabilize the insertion of the mold terminal 17. Thereby, the electrical connection between the motor unit 10 having the male terminal 17 and the drive circuit device 50 having the female terminal 55 can be smoothly performed.

  (2) In the female terminal 55 used in the present embodiment, the window portion 63 and the cut and raised piece 64 that suppress the flow of the molten solder 65 are arranged on the shortest straight line connecting the claw portion 62 and the leaf spring portion 61. . Thereby, the flow of the molten solder 65 from the claw portion 62 toward the leaf spring portion 61 can be effectively suppressed.

  (3) In the female terminal 55 used in the present embodiment, the cut and raised piece 64 itself is melted by the bending solder 65 by bending the cut and raised piece 64 provided in the cylindrical portion 60 to the inside of the cylindrical portion 60 (the leaf spring portion 61 side). In addition, the opening formed by cutting and raising becomes a window portion 63 that similarly suppresses the flow of the molten solder 65. Thereby, the flow of the molten solder 65 can be more effectively suppressed by both the window portion 63 and the cut-and-raised piece 64, and both can be easily formed only by cutting and raising a part of the female terminal 55. Further, since the window portion 63 and the cut-and-raised piece 64 are integrally formed with the female terminal 55, no separate parts are required, and it is possible to cope with such a simple configuration.

  (4) In the female terminal 55 used in the present embodiment, the window portion 63 and the cut-and-raised piece 64 are provided corresponding to the claw portion 62, respectively. That is, the window portion 63 and the cut and raised piece 64 that match each claw portion 62 of the female terminal 55 can be individually formed, and the window portion 63 and the cut and raised piece 64 are effectively suppressed while suppressing the flow of the molten solder 65. It is possible to reduce the size.

  (5) The female terminal 55 used in the present embodiment includes a claw portion 62 through which the mounting hole 51a provided in the circuit board 51 is inserted as a fixing portion, and the claw portion 62 on the back surface side after the circuit board 51 is inserted. Are fixed to the circuit board 51 by soldering. Since the female terminal 55 having this configuration is soldered to the claw portion 62 on the back surface side through which the circuit board 51 is inserted, it is difficult for the molten solder 65 to flow from the claw portion 62 to the leaf spring portion 61. By providing the window part 63 and the cut-and-raised piece 64 for suppressing the flow of the molten solder 65 with respect to the female terminal 55 having such a configuration, the leaf spring part 61 is more firmly fixed by the flow of the molten solder 65. It can be surely prevented.

In addition, you may change embodiment of this invention as follows.
In the above embodiment, the window portion 63 is formed by cutting and raising between the claw portion 62 and the leaf spring portion 61 where soldering is performed, and bending the piece 64 to the inside, and the plate of the molten solder 65 is formed by both of them. Although the flow to the spring part 61 side is suppressed, the present invention is not limited thereto, and for example, as shown in FIGS. 3A and 3B, the window part 63 may be simply punched out. The flow of the molten solder 65 toward the leaf spring portion 61 can be suppressed with only the window portion 63. Further, the shape, number, and position of the window portion 63 are appropriately changed, and the window portion 63 is not provided, and the window portion 63 is not appropriately provided. May be.

  Further, the shape of the portion other than the window 63 and the cut and raised piece 64 in the female terminal 55 may be changed as appropriate. For example, as a fixing portion for fixing the female terminal 55 by soldering, four claw portions 62 are provided in the vicinity of the corner portion of the rectangular cylindrical tube portion 60, but the shape, number, and position of the claw portions 62 are all provided. For example, the number of the claw portions 62 may be two as a whole with only one set of diagonals. Further, the claw portion 62 that is inserted into the mounting hole 51a of the circuit board 51 is used as the fixing portion of the female terminal 55. Good. Moreover, although the two leaf | plate spring parts 61 are provided, for example, one may be sufficient.

  In the above embodiment, the motor unit 10, the output unit 30 that converts the rotational motion of the motor unit 10 into a linear motion, and the drive circuit unit 40 that drives and controls the motor unit 10 are applied to the actuator 1. However, the present invention is not limited to this. For example, the present invention may be applied to a motor device that includes a motor unit and a drive circuit unit and has a connection mode using a male terminal and a female terminal between them. In addition to the connection by the female terminal between the motor unit and the drive circuit unit, the present invention may be applied to all types in which the female terminal is fixed to the circuit board.

It is sectional drawing of the actuator in this embodiment. (A)-(d) is a figure for demonstrating the female-type terminal used by this embodiment. (A) (b) is a figure for demonstrating the female terminal in another example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Motor part, 17 ... Male terminal, 50 ... Drive circuit device, 51 ... Circuit board, 51a ... Mounting hole, 55 ... Female terminal, 61 ... Leaf spring part (movable connection piece), 62 ... Claw part (fixed) Part), 63 ... window part (flow suppressing part), 64 ... cut and raised pieces (flow suppressing part and projecting part), 65 ... solder.

Claims (7)

A structure for fixing a female terminal having a movable connecting piece that is elastically moved by insertion of the male terminal and is in press contact with the male terminal, and a fixing portion for fixing to the circuit board by soldering Because
A female terminal fixing structure, wherein a flow suppressing portion for suppressing the flow of molten solder from the fixed portion toward the movable connecting piece is provided between the fixed portion and the movable connecting piece. The female terminal fixing structure according to claim 1,
The female terminal fixing structure, wherein the flow suppressing part is disposed at least on a shortest straight line connecting the fixing part and the movable connecting piece. The female terminal fixing structure according to claim 1 or 2,
The structure for fixing a female terminal is characterized in that the flow suppressing part is a window part or a protrusion part integrally formed with the female terminal. In the fixing structure of the female terminal according to claim 3,
A fixing structure of a female terminal, wherein both the window portion and the protruding portion are formed by bending a cut and raised piece provided on the female terminal toward the movable connecting piece. The female terminal fixing structure according to any one of claims 1 to 4,
A fixing structure for a female terminal, wherein a plurality of the fixing portions are provided, and the flow suppressing portion is provided corresponding to the plurality of fixing portions. In the female terminal fixing structure according to any one of claims 1 to 5,
The fixing portion is a claw portion that passes through a mounting hole provided in the circuit board, and is soldered to the claw portion on the back surface side after the circuit board is inserted. Female terminal fixing structure. A drive circuit device for controlling the driving of the motor unit is integrally provided, a male terminal provided on the motor unit side, and a female terminal provided on a circuit board constituting the drive circuit device A motor device having a configuration in which the motor unit and the drive circuit device are electrically connected by connection to
The motor device according to claim 1, wherein the female terminal is fixed on the circuit board with the fixing structure according to claim 1.

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