JP2020088998A - Motor actuator - Google Patents

Abstract

To provide a motor actuator which eliminates chattering sound to achieve improvement of contact reliability.SOLUTION: A motor actuator 1 of the invention has a motor 50, a connector side terminal 40, and a housing 2. The motor 50 has a power feeding terminal 56b which is fixed to a bracket 52 and supplies electric power to a commutator 54. The connector side terminal 40 has a power feeding terminal 42. The power feeding terminal has a first tip part 42c. The power feeding terminal 56b has a second tip part 56c and an elastic part 56d formed continuously from the second tip part 56c. The first tip part 42c and the second tip part 56c are electrically connected by welding.SELECTED DRAWING: Figure 3

Description

The present invention relates to a motor actuator for operating a blower path switching door in a vehicle air conditioner, for example.

As a motor actuator of this type, for example, in Patent Document 1, a motor having a power supply terminal as a drive source, a connector-side terminal arranged at an insertion port of an external connector to supply external electric power to the motor, and a connector side An actuator device including a pair of power supply terminals connected to the terminals and contacting the power supply terminals of the motor in a state in which an elastic force is applied is described. Thereby, external electric power can be supplied to the power supply terminal of the motor, and when the motor operates, the ventilation path switching door connected to this actuator device operates.

JP 2012-90510 A

However, in the actuator device described in Patent Document 1, since the power supply terminal is in contact with the power supply terminal of the motor in a state in which the elastic force is applied, the power supply terminal and the motor are vibrated due to vibration of the motor itself or the vehicle. There is a possibility that problems may occur in an electric vehicle that is particularly required to be quiet because contact failure easily occurs at a contact portion of a power supply terminal and chatter noise is generated.

Further, the actuator device described in Patent Document 1 is a useful technique from the viewpoint that the power supply terminal and the power supply terminal of the motor can be easily connected, but when the motor is attached to the case, the power supply is performed. If a positional deviation occurs in the positional relationship between the power supply terminal and the power supply terminal of the motor, a contact failure may occur.

Therefore, the present invention provides a motor actuator that eliminates chatter noise and improves contact reliability.

The motor actuator of the present invention is
A motor case, a bracket attached to the motor case, a rotating shaft pivotally supported by the motor case and the bracket, a commutator fixed to the rotating shaft, and a commutator fixed to the bracket. A motor having a power supply terminal for supplying power,
A connector side terminal having a power supply terminal,
A housing having a lower case and an upper case for internally fixing the motor and the connector-side terminal,
The power supply terminal and the power supply terminal are electrically connected by welding,
One of the power supply terminal and the power supply terminal has an elastic portion.

In the motor actuator of the present invention, since the power supply terminal and the power supply terminal are electrically connected by welding, contact reliability is improved. However, if the power supply terminal and the power supply terminal are welded after the connector side terminal and the motor are installed in one case, it is difficult to weld due to the welding work inside the case, and the inside of the case may become dirty. There is.
Therefore, in the motor actuator of the present invention, it is considered that the power feeding terminal and the power feeding terminal are welded and integrated outside the case so that the welding work is easy and the inside of the case is not contaminated, and then these are incorporated into the case. Be done.
However, in this case, although the welding work is easy and the inside of the case is kept clean, if the connector terminal integrated by welding and the motor are misaligned in the case, an excessive load is applied to the welded part. In addition, poor connection may occur.
Therefore, in the motor actuator of the present invention, one of the power supply terminal and the power supply terminal has an elastic portion. When the connector-side terminal and the motor, which are welded and integrated, are incorporated into the case, the elastic portion absorbs the deviation.
As described above, in the motor actuator of the present invention, since the power supply terminal and the power supply terminal are welded, chatter noise is eliminated to improve contact reliability, and an excessive load is applied to the welded portion even if the case is misaligned with respect to the case. Moreover, since it is outside the case, it is easy to weld and the inside of the case does not get dirty.

It is a completed product of the motor actuator 1 which concerns on embodiment of this invention, (a) is a top view, (b) is sectional drawing of the cutting line AA of (a). 1A is a plan view of the upper case 20 of FIG. 1A viewed from the inside, and FIG. 1B is a plan view of the upper case 20 of FIG. 2A is a plan view excluding the output shaft 32 and the reduction gear 31 of FIG. 2B, and FIG. 2B is a cross-sectional view taken along the line BB of FIG. 3A is an enlarged view of arrow C in FIG. 3A, and FIG. 3B is an enlarged view of arrow D in FIG. 3B.

In this specification, the assembling direction of the upper case 20 and the lower case 10 in FIG. 1B is referred to as “assembling direction” (X direction), and the first direction perpendicular to the assembling direction in FIG. The direction is called the “first direction” (Y direction), and in FIG. 2B, the direction parallel to the assembly direction and the rotation axis 53 perpendicular to the first direction is the “axial direction” (Z direction). 2B, the radial direction about the rotary shaft 53 is simply referred to as “radial direction”.

Hereinafter, embodiments of the present invention will be exemplarily described with reference to the drawings.

The motor actuator 1 of the present invention is shown in FIGS. 1 to 4 and is used, for example, as a drive source for an air flow control valve of an air conditioner.

The motor actuator 1 includes a lower case (one case) 10, an upper case (the other case) 20, a reduction gear 31, an output shaft 32, a connector side terminal 40, and a motor 50.

The lower case 10 has a substantially quadrilateral bottom plate 11, a side plate 12 provided upright from the peripheral edge of the bottom plate 11, and an open end formed by the side plate 12.
The upper case 20 has a substantially quadrilateral upper plate 21, a side plate 22 provided below the peripheral edge of the upper plate 21, and an open end formed by the side plate 22.

The housing 2 having a predetermined internal space is formed by incorporating the opening end of the upper case 20 into the opening end of the lower case 10. Inside the housing 2, a motor 50, a reduction gear 31, an output shaft 32, a connector side terminal 40, etc. are arranged.
Further, the lower case 10 is provided with a recess 16 for inserting and fixing the motor 50, and the upper case 20 is provided with a recess 26 for inserting and fixing the motor 50.

Further, one of the side plates 12 and 22 of the housing 2 is formed with one external connector insertion port 14 and 24 protruding from the side plates 12 and 22. An unillustrated connector is inserted into the insertion ports 14 and 24 from an external device. The external device is electrically connected to connector pins 43, which will be described later, provided in the insertion ports 14 and 24 when the connector is inserted into the insertion ports 14 and 24.

The insertion ports 14 and 24 are formed in the side plates 12 and 22 that directly face a bracket 52 of the motor 50, which will be described later. The side plates 12 and 22 are formed in the direction perpendicular to the axial direction. Further, the insertion ports 14 and 24 and the motor 50 are arranged without overlapping in the axial direction of the motor. Further, the insertion direction of the insertion port is parallel to the axial direction of the motor.

The reduction gear 31 has two gears and is connected to a worm gear 58 described later.
The output shaft 32 is formed of a hard resin and has a flange-shaped output gear having a groove on the outer periphery, and the output gear is connected to the reduction gear 31. The output shaft 32 is axially supported by shaft holes formed in the lower case 10 and the upper case 20.
A pattern substrate 33 that detects the rotational position of the output shaft 32 is fixed to one surface of the output shaft 32, and the pattern substrate 33 rotates integrally with the rotation of the output shaft 32.

The connector-side terminal 40 includes a pattern brush 41 that contacts the pattern substrate 33, a power supply terminal 42 that is connected to the power supply terminal 56b, a connector pin 43 for connecting to an external device, and an insulating resin that holds these. And a holding portion 44.
The connector-side terminal 40 is fixed by heat staking by inserting a protrusion provided on the lower case 10 into a hole of a mounting portion integrally provided on the holding portion 44.

When the pattern brush 41 is brought into sliding contact with the pattern substrate 33, the voltage value corresponding to the position of the output shaft 32 is detected, and the rotational position of the output shaft 32 is known.

The two power supply terminals 42 supply power from an external device to the power supply terminal 56b of the motor.
The two power supply terminals 42 are made of a rigid conductive material and have a rectangular cross section.
The two power supply terminals 42 have one power supply terminal and the other power supply terminal, and are respectively drawn from the holding portion 44 in the first direction. That is, the two power supply terminals 42 are arranged at different positions on the upper side and the lower side in the axial direction so as not to overlap with each other when viewed from the mounting direction, and are arranged at the same height when viewed in the axial direction. And is pulled out from the holding portion 44 to the same length in the first direction.

The two power supply terminals 42 include a linear first tip portion (one tip portion) 42c and a linear first main body portion (one main body portion) 42d formed continuously with the first tip portion 42c. Have.

The connector pin 43 is fixed to the insertion ports 14 and 24 and can be connected to a connector of an external device.

The motor 50 has a motor case 51, a bracket 52, a stator, a rotor, and a motor brush 56, and is inserted and fixed in the recesses 16 and 26 of the lower case 10 and the upper case 20. There is.

The motor case 51 is made of a metal material and includes a cylindrical portion and an upper plate, and a radial bearing is press-fitted in the center of the upper plate.
The bracket 52 is fitted into the opening of the motor case 51, and is integrally formed of an insulating material such as resin. A circular recess is formed in the center of the bracket 52, and the bottom of the recess serves as a thrust bearing. A radial bearing is press-fitted into the recess. The outer diameter of the bracket 52 is substantially the same as the inner diameter of the cylindrical portion of the motor case 51.

The stator is fixed to the inner peripheral surface of the cylindrical portion of the motor case 51, and is made of a permanent magnet that is cylindrical and has N and S poles alternately magnetized along the circumferential direction.
The rotor is fixed to the rotating shaft 53, an armature core that is fixed to the rotating shaft 53 and is formed by laminating a plurality of thin steel plates, a copper wire wound around the armature core in a coil shape, and the rotating shaft 53. And a commutator 54 electrically connected to the copper wire.
The rotary shaft 53 is inserted into a radial bearing and rotatably supported. Then, one end of the rotary shaft 53 projects from the motor case 51 and a worm gear 58 is fixed thereto, and the other end is supported by a thrust bearing.

Further, the side plates 12 and 22 are arranged close to each other at the lower end of the bracket 52.

The bracket 52 is provided with a pair of motor brushes 56 so as to be in sliding contact with the commutator 54 and to flow an electric current.
The motor brush 56 is made of a rigid conductive material such as copper or copper alloy, and is formed into a substantially thin flat plate having a flat surface 56ba and a side surface 56bb. The flat surface 56ba is wider than the side surface 56bb, and the side surface 56bb is narrower than the flat surface 56ba.

As shown in FIG. 3B, the two motor brushes 56 are arranged inside the bracket 52 in line symmetry about the rotation shaft 53.
One end 56a of the motor brush is fixed to the inside of the bracket 52 while being in contact with the commutator 54, and the other end 56b of the motor brush is fed from the bracket 52 radially outward (in the first direction). It is a terminal. The one end 56a of the motor brush and the power supply terminal 56b are made of the same member without breaks.

The motor brush 56 is inserted and fixed inside the bracket 52. Specifically, the motor brush 56 is inserted and fixed inside the bracket 52 in the axial direction from the side surface 56bb. Therefore, as shown in FIG. 4A, when viewed from the assembling direction, the power supply terminal 56b can be seen as a wide plane 56ba.

Since there are two motor brushes 56, the power supply terminal 56b has one power supply terminal and the other power supply terminal. The power supply terminal 56b is so-called laterally protruding so as to protrude in the radial direction of the motor.

Further, one ends 56a of the two motor brushes are fixed at the same position in the axial direction when viewed from the assembling direction. If the entire shape of the motor brush is flat, if the two power supply terminals 56b are pulled out from the bracket 52 in the radial direction, the two power supply terminals 56b will overlap when viewed from the mounting direction. Then, when viewed from the assembling direction, it becomes difficult to electrically connect the two overlapping power supply terminals 56b and the two power supply terminals 42 whose positions are changed to the upper side and the lower side in the axial direction.

Therefore, the two power supply terminals 56b have a shape that is deformed to the upper side and the lower side in the axial direction when viewed from the assembling direction (FIG. 4A). Therefore, the two power supply terminals 42 and the two power supply terminals 56b can be easily electrically connected. That is, one power supply terminal and one power supply terminal can be electrically connected, and the other power supply terminal and the other power supply terminal can be electrically connected.

Further, the two power supply terminals 56b are respectively drawn out from the bracket 52 to the outside in the radial direction (in the first direction). If the overall shape of the motor brush is flat, the two power supply terminals 56b are arranged at different heights in the assembling direction when viewed from the axial direction. Then, when viewed from the axial direction, the two power supply terminals 56b arranged at different heights and the two power supply terminals 42 arranged at the same height become difficult to be electrically connected, but in the present embodiment. The two power supply terminals 56b arranged at different heights are used for electrical connection. Specifically, as shown in FIG. 4(b), one power supply terminal located at a higher position in the assembling direction as viewed from the axial direction is in contact with the upper side of the one power supply terminal, and also in the assembling direction. The other power supply terminal at the lower position is arranged so as to contact the lower side of the other power supply terminal. With this configuration, one power supply terminal and one power supply terminal can be electrically connected, and the other power supply terminal and the other power supply terminal can be electrically connected.

Further, the two power supply terminals 56b are respectively drawn out from the bracket 52 radially outward (in the first direction) when viewed from the mounting direction.
The power supply terminal 56b is continuous with the linear second tip portion (the other tip portion) 56c and the second tip portion 56c at a portion radially outwardly (in the first direction) from the motor case 51. The elastic portion 56d is formed, and the second main body portion (the other main body portion) 56e is formed continuously with the elastic portion 56d.

Specifically, as shown in FIG. 4B, the elastic portion 56d is a projecting U-shaped elastic curved portion having a U-shaped cross section that protrudes upward or downward in the assembling direction. Has an end. One end portion is formed continuously with the second tip portion 56c, and the other end portion is formed continuously with the second main body portion 56e.
The elastic curved portion is formed by press working to be thinner than the second tip portion 56c and the second main body portion 56e. Therefore, the thickness H1 of the elastic bending portion is thinner than the thickness H2 of the second main body portion.

Then, when a force is applied to the second distal end portion 56c of the power supply terminal from the assembling direction, the first direction, or the axial direction, one end of the elastic bending portion causes the other end of the elastic bending portion (the second main body portion). With the end point of 56e as a base point, it moves in the elastic deformation range in the assembling direction, the first direction, or the axial direction, and when the force disappears, the original shape is restored.

In the present invention, the elastic moduli of the second tip portion 56c and the second main body portion 56e of the power feeding terminal are set higher than the elastic modulus of the elastic bending portion of the power feeding terminal, for example, 20 times or more, preferably 50 times. As described above, it is more preferably 100 times or more. Therefore, when a force is applied to the second tip portion 56c of the power supply terminal, the second tip portion 56c and the second body portion 56e elastically deform very slightly, but the second tip portion and the second body portion elastically deform. Is small enough to be ignored.

And when welding the 1st tip part 42c and the 2nd tip part 56c, after making the 1st tip part 42c and the 2nd tip part 56c contact, the 1st tip part and the 2nd tip part are not illustrated from both outer sides. Applying welding current to the welding electrode while applying pressure with the welding electrode. As a result, the electric current concentrates on the point contact portion between the first tip portion 42c and the second tip portion 56c, and spot welding is performed. The welded portion does not include the elastic portion, that is, the portion other than the elastic portion. This is because if the welded portion is an elastic portion, the elastic portion will not undergo a predetermined elastic deformation.

With the above-described configuration, the rotation of the motor can be transmitted to the rotation shaft of the air flow control valve of the air conditioning device via the worm gear 58, the reduction gear 31, and the output shaft 32.

The motor actuator 1 of this example includes a motor 50, a connector-side terminal 40, and a housing 2.
The motor 50 includes a motor case 51, a bracket 52 attached to the motor case 51, a rotary shaft 53 pivotally supported by the motor case 51 and the bracket 52, a commutator 54 fixed to the rotary shaft 53, and a bracket 52. And a power feeding terminal 56b that is fixed to the power feeding terminal 56b to feed power to the commutator 54.
The connector-side terminal 40 has a power supply terminal 42.
The housing 2 includes a lower case 10 and an upper case 20 that internally fix the motor 50 and the connector-side terminal 40.

The power supply terminal 42 and the power supply terminal 56b are electrically connected by welding.
The power feeding terminal 42 has an elastic portion.

Therefore, in the motor actuator of this example, the power supply terminal and the power supply terminal are electrically connected by welding, so that the contact reliability is improved. However, if the power supply terminal and the power supply terminal are welded after the connector side terminal and the motor are installed in the lower case, it is difficult to weld due to the welding work inside the case, and the inside of the case may become dirty. is there.
Therefore, in the motor actuator of this example, it may be possible to weld the power supply terminal and the power supply terminal outside the case so that the inside of the case is not contaminated so that the welding work is easy, and then these are incorporated into the case. Be done.
However, in this case, although the welding work is easy and the inside of the case is kept clean, if the connector terminal integrated by welding and the motor are misaligned in the case, an excessive load is applied to the welded part. In addition, poor connection may occur.
Therefore, the power supply terminal of this example has an elastic portion. When the connector-side terminal and the motor, which are welded and integrated, are incorporated into the case, the elastic portion absorbs the deviation.
As described above, in the motor actuator of this example, since the power supply terminal and the power supply terminal are welded, chatter noise is eliminated to improve contact reliability, and an excessive load is applied to the welded portion even if the case is misaligned. Moreover, since it is outside the case, it is easy to weld and the inside of the case does not get dirty.

In the present invention, the elastic moduli of the first tip portion 42c and the first main body portion 42d of the power feeding terminal are set higher than the elastic modulus of the elastic portion of the power feeding terminal, for example, 20 times or more, preferably It is 50 times or more, more preferably 100 times or more. Therefore, when the connector-side terminal integrated by welding and the motor are misaligned with respect to the case, the first tip portion 42c and the first main body portion 42d are extremely slightly elastically deformed, but the first tip portion is deformed. The elastic deformation of 42c and the first main body 42d is so small that it can be ignored.
Further, when the connector-side terminal integrated by welding and the motor are assembled in the lower case, the mounting deviation is within the elastic deformation range of the elastic portion. Therefore, if there is a misalignment, an excessive load is not applied to the welded portion, and an electrically good connection state is maintained in the welded portion.

Further, the power feeding terminal 42 has a first tip portion 42c.
The power supply terminal 56b has a second tip portion 56c and an elastic portion 56d formed continuously with the second tip portion 56c.
The first tip portion 42c and the second tip portion 56c are electrically connected by welding.

Therefore, in the motor actuator of this example, the first tip portion and the second tip portion are electrically connected by welding, so that the contact reliability is improved. However, when the first tip and the second tip are welded after the connector-side terminal and the motor are installed in the lower case, it is difficult to weld due to the welding work inside the case, and the inside of the case becomes dirty. There is a possibility that
Therefore, in the motor actuator of the present example, the first tip portion and the second tip portion are welded and integrated outside the case so that the inside of the case is easy to be welded and the inside of the case is not contaminated, and then these are incorporated into the case. It is possible.
However, in this case, although the welding work is easy and the inside of the case can be kept clean, if the connector side terminal and the motor are misaligned in the lower case, an excessive load is applied to the welded part, resulting in poor connection. It can happen.
Therefore, the power supply terminal has a second tip portion and an elastic portion formed continuously with the second tip portion.
When the connector-side terminal and the motor, in which the first tip portion and the second tip portion are welded and integrated, are incorporated into the lower case, the elastic portion absorbs the deviation.
As described above, in the motor actuator of this example, since the first tip portion and the second tip portion are welded, chattering noise is eliminated to improve contact reliability, and even if there is a mounting deviation in the case, the welded portion is excessive. Load is not applied, and because it is outside the case, it is easy to weld and the inside of the case does not get dirty.

Further, the power supply terminal 42 is pulled out from the connector side terminal 40 in a first direction perpendicular to the direction in which the lower case 10 and the upper case 20 are assembled.
The power supply terminal 56b is pulled out from the motor 50 in the first direction.
Therefore, in the motor actuator of this example, since the power supply terminal and the power supply terminal are arranged in the first direction, the terminal on the connector side and the motor can be electrically connected in the shortest distance, and the space for arranging the terminal can be provided. Can be made smaller.

Further, the first direction is one direction in the radial direction of the motor.
The motor 50 has a motor brush 56.
One end 56a of the motor brush is fixed to the inside of the bracket 52 while being in contact with the commutator 54, and the other end of the motor brush is a power supply terminal 56b.
The one end 56a of the motor brush and the power supply terminal 56b, which is the other end of the motor brush, are formed of the same member without breaks.
Therefore, in the motor actuator of this example, this motor serves as a lateral power supply terminal, and when the motor brush is extended in the radial direction of the motor, the extended portion becomes the power supply terminal as it is, and the terminal can be easily routed. You can

Further, the power supply terminal 56b has a second main body portion 56e formed continuously with the elastic portion.
Further, since the thickness H1 of the elastic bending portion, which is the elastic portion, is smaller than the thickness H2 of the second main body portion, the elastic bending portion is easily elastically deformed.

Further, since the elastic portion 56d is a protruding elastic curved portion, it can be easily configured.

Further, since the elastic bending portion has a U-shaped cross section, it can be easily configured.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above, and various modifications other than the above can be carried out without departing from the spirit of the invention.

In the above description of the embodiment, the power supply terminal 56b is laterally projected from the motor case in the radial direction of the motor, but the present invention is not limited to this.
For example, the power supply terminals may be vertically projected so as to project in the axial direction of the motor from the bracket 52, instead of horizontally. The vertically extending power supply terminal has a shape that extends around the outside of the bracket, and the power supply terminal and the power supply terminal are electrically connected by welding.

In the description of the above embodiment, the elastic portion 56d is an elastic curved portion having a U-shaped cross section. If the tip of the power supply terminal is elastically deformable when a force is applied in the assembling direction, the first direction, or the axial direction, and returns to the original shape when the force disappears, It is not limited to the U-shaped cross section.
The elastic portion may be, for example, an elastic curved portion having a V-shaped cross section or a W-shaped cross section.

Further, in the above description of the embodiment, the elastic portion is the elastic bending portion, but the present invention is not limited to this. The elastic portion may be, for example, an elastic non-curved portion which is a linear leaf spring. The elastic non-curved portion is formed into a plate-shaped leaf spring thinner than the thickness of the second tip portion and the second main body portion, for example, by press working. The elastic non-curved portion is slightly deformable in the first direction.

Further, in the description of the above-described embodiment, the power supply terminal 56b is an elastic portion that is a linear second tip portion (the other tip portion) 56c and an elastic bending portion that is formed continuously with the second tip portion 56c. Although it has 56d and the 2nd main part 56e formed in a continuous manner with elastic part 56d, the present invention is not limited to this.
For example, the power supply terminal does not have a linear second tip portion (the other tip portion) formed therein, and includes an elastic bending portion having a U-shaped cross section and a second main body portion formed continuously with the elastic bending portion. You may have one. In this case, one end of the elastic bending portion having a U-shaped cross section is welded to the first tip (one tip) 42c.
Also in this example, the above-described effects can be obtained.

Further, in the above description, the elastic portion 56d is formed on the power supply terminal 56b, but the present invention is not limited to this. For example, the elastic portion is not formed on the power supply terminal but is formed on the power supply terminal. Good.
Specifically, the power feeding terminal is formed by a linear third tip portion (one tip portion), the above-mentioned elastic portion formed continuously with the third tip portion, and the elastic portion continuously formed. And a third main body (one main body). Also. The power supply terminal has a linear fourth tip portion (the other tip portion) and a linear fourth main body portion (the other main body portion) formed continuously with the fourth tip portion.
Then, the third tip portion and the fourth tip portion are electrically connected by welding.

Further, in the above description, the welding method is spot welding, but solder connection may be used.

Further, in the above description, the power supply terminal and the tip of the power supply terminal are welded, but since the welded portion is supported by the case, the following configuration may be adopted.
For example, the lower case 10 may have one rising portion formed inside. The rising portion is erected from the bottom plate 11 in the assembling direction and has a flat end portion.
The above-mentioned power supply terminal and the welded portion of the power supply terminal are placed and supported on the end of the rising portion.
A groove may be provided on the end face of the rising portion, and the welded portion of the power supply terminal and the power supply terminal may be fitted into this groove.

1 Motor Actuator 2 Housing 10 Lower Case 11 Bottom Case Bottom Plate 12 Lower Case Side Plate 13 Stand Up 14 Lower Case Insertion Port 16 Recess 20 Upper Case 21 Upper Case Upper Plate 22 Upper Case Side Plate 24 Upper Case Insertion Port 26 Concave portion 31 Reduction gear 32 Output shaft 33 Pattern substrate 40 Connector side terminal 41 Pattern brush 42 Feeding terminal 42a Feeding terminal flat surface 42b Feeding terminal side surface 42c First tip (one tip)
42d First body portion (one body portion)
43 connector pin 44 holding part 50 motor 51 motor case 52 bracket 53 rotating shaft 54 commutator 56 motor brush 56a one end of motor brush 56b the other end of motor brush (power supply terminal)
56ba Flat surface at the other end of the motor brush 56bb Side surface at the other end of the motor brush 56c Second tip portion (other tip portion)
56d Elastic part (elastic curved part with U-shaped section)
56e Second body portion (other body portion)
58 Worm gear

Claims (7)

A motor case, a bracket attached to the motor case, a rotating shaft pivotally supported by the motor case and the bracket, a commutator fixed to the rotating shaft, and a commutator fixed to the bracket. A motor having a power supply terminal for supplying power,
A connector side terminal having a power supply terminal,
A housing having a lower case and an upper case for internally fixing the motor and the connector-side terminal,
The power supply terminal and the power supply terminal are electrically connected by welding,
One of the power feeding terminal and the power feeding terminal has an elastic portion. Either one of the power feeding terminal and the power feeding terminal has one tip portion and the elastic portion formed continuously with the one tip portion,
Either of the power feeding terminal and the power feeding terminal has the other tip portion,
The motor actuator according to claim 1, wherein the one tip portion and the other tip portion are electrically connected by welding. The power supply terminal is pulled out from the connector-side terminal in a first direction perpendicular to an assembling direction of the lower case and the upper case,
The motor actuator according to claim 2, wherein the power supply terminal is pulled out from the motor in the first direction. The first direction is one radial direction of the motor,
The motor has a brush for the motor,
One end of the motor brush is fixed to the inside of the bracket while contacting the commutator, the other end of the motor brush is the power supply terminal,
The motor actuator according to claim 3, wherein one end of the motor brush and the other end of the motor brush are made of the same member having no break. Either one of the power supply terminal and the power supply terminal has a main body formed continuously with the elastic portion,
The motor actuator according to claim 1, wherein a thickness of the elastic portion is thinner than a thickness of the main body portion. The motor actuator according to claim 1, wherein the elastic portion is a protruding elastic curved portion. The motor actuator according to claim 6, wherein the elastic bending portion has a U-shaped cross section.

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