JP2019033640A - Speed reducer-equipped motor unit - Google Patents

Abstract

To provide a speed reducer-equipped motor unit capable of sufficiently reducing the outer dimension of a board accommodating chamber in a thickness direction of a control board by appropriately arranging the control board and each connector terminal.SOLUTION: Speed reducers 8 and 10 are disposed in gear accommodating chambers 3 and 4 of a main body casing 2 and an output shaft 9a of a motor 9 is connected from the right side. A board accommodating chamber 5 is defined on the right side of the gear accommodating chambers 3 and 4, and a control board 12 is arranged inside the gear accommodating chambers 3 and 4 along the axis Cm of the output shaft 9a. In the board accommodating chamber 5, two power supply connector terminals 14 are vertically juxtaposed on the rear surface of the control board 12, and press-fitted ends 14a of the base ends thereof are press-fitted into a terminal holes 12a of the control board 12, and five signal connector terminals 15 are juxtaposed vertically on the front face of the control board 12, and the press-fitted ends 15a of the base ends thereof are press-fitted into the terminal holes 12b of the control board 12. The distal ends of the connector terminals 14 and 15 are oriented to the right side so as to be included in the connector portion 16b of the connector cover 16.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a motor unit with a speed reducer, and more particularly to a connector structure of a control board for driving and controlling a motor.

  As a conventional motor unit with a reduction gear of this type, for example, a power window unit can be cited. FIG. 1 is a perspective view showing a power window unit according to an embodiment of the present invention. Since the appearance is the same as that of a conventional power window unit, the configuration will be described with reference to FIG.

  The gear housing chambers 3 and 4 defined in the main body casing 2 of the power window unit 1 are provided with a speed reducer composed of a worm wheel and a worm, and the output shaft 8a of the worm wheel is forward of the gear housing chambers 3 and 4. Protruding. A motor 9 is fastened to the right side of the main casing 2, and the output shaft of the motor 9 is connected to the worm in the gear housing chambers 3 and 4.

  A substrate housing chamber 5 is defined in the main body casing 2 so as to be adjacent to the right side of the gear housing chambers 3 and 4, and a control substrate 12 (shown by a broken line in the drawing) is disposed in the substrate housing chamber 5. Are electrically connected to the motor 9. A connector 17 is provided on the right side of the control board 12. Power is supplied from the outside through the connector 17, and the motor 9 is driven and controlled by the control board 12 according to an operation signal input through the connector 17. It has become.

  As the connector structure of the power window unit 1 configured as described above, for example, the technique of Patent Document 1 can be applied. FIG. 7 is a schematic diagram showing the positional relationship between the control board 12 and the power supply and signal connector terminals when the technique of Patent Document 1 is applied to the power window unit 1, and is a cross-sectional view taken along the line IV-IV in FIG. Since it corresponds to the figure, the top, bottom, left, and right and front and rear directions are expressed following FIG.

  In the substrate storage chamber 5, the control substrate 12 is disposed in a posture along the axis Cm of the output shaft 9 a of the motor 9. Press-fit ends 114a and 115a formed at the base ends of the plurality of connector terminals 114 and 115 are press-fitted into the terminal holes 12a and 12b provided in the control board 12 from the rear, and each connector terminal 114 and 115 has a right angle. The tip is directed to the right side along the plate surface of the control board 12.

  The connector terminals 114 and 115 are roughly classified into power supply and signal, and are respectively spaced apart from each other in the front-rear direction (thickness direction of the control board 12) across the axis Cm of the output shaft 9a of the motor 9. Are arranged in a vertical direction along the plate surface (a direction perpendicular to the paper surface). The distal ends of the connector terminals 114 and 115 are included in the connector portion 16b of the connector cover 16, and a mating connector (hereinafter referred to as a vehicle-side connector) is connected to the connector formed thereby from the right side.

  The shape of the connector portion 16b and the arrangement of the connector terminals 114 and 115 therein are determined corresponding to the vehicle-side connector. With respect to the board thickness direction (front-rear direction), the width B of the connector portion 16b is set, and power is fed within the width B of the connector portion 16b so as to secure a separation distance A across the axis Cm of the output shaft 9a. The front and rear positions of the signal and signal connector terminals 114 and 115 are set. Based on these conditions, the front and rear positions of the control board 12 are set so that the base ends of the connector terminals 114 and 115 can be connected, and the control board 12 and the connector terminals 114 and 115 can be accommodated. Thus, the substrate storage chamber 5 is defined.

Japanese Patent No. 3123391

However, when the connector structure of Patent Document 1 is applied to the power window unit 1, there is a problem that the outer dimension of the substrate housing chamber 5 cannot be sufficiently reduced in the front-rear direction.
That is, as shown in FIG. 7, in the technique of Patent Document 1, in order to avoid the row of signal connector terminals 115 connected on the control board 12 and to secure the separation distance A, the row of power supply connector terminals 114 is arranged. It is necessary to greatly separate from the control board 12, and the separation distance a is inevitably larger than the separation distance A.

  As a result, the space in the front-rear direction necessary for accommodating the control board 12 and the connector terminals 114 and 115 is the distance a of the power supply connector terminal 114 from the control board 12, the plate thickness c of the control board, and the connector. When the terminals 114 and 115 are press-fitted and fixed, the dimension e is obtained by adding the protruding lengths d of the press-fit ends 114a and 115a. For this reason, at least the dimension e is required as the inner dimension of the substrate storage chamber 5, but the dimension e is inevitably increased in order to secure a large separation distance a as described above, and the outer dimension of the substrate storage chamber 5 is increased. It could not be reduced sufficiently.

  The present invention has been made to solve such problems, and the object of the present invention is to arrange the control board and each connector terminal appropriately so that the outside of the board housing chamber in the thickness direction of the control board is achieved. An object of the present invention is to provide a motor unit with a speed reducer that can sufficiently reduce the size.

  In order to achieve the above object, a motor unit with a speed reducer according to the present invention is attached to a speed reducer disposed in a gear housing chamber of a main body casing from one side with respect to the main body casing, and the output shaft is connected to the output shaft. A motor coupled to the speed reducer in a gear housing chamber, a substrate housing chamber defined in the body casing so as to be adjacent to the gear housing chamber on one side, and an axis of an output shaft of the motor; A control board electrically connected to the motor, and a base end inserted into and fixed to a terminal hole penetrating the control board. Oriented in the same direction along the plate surface of the control board and included in the connector housing, and each tip is disposed in the connector housing so as to form a plurality of rows separated from each other in the plate thickness direction of the control board. First In the motor unit with a speed reducer provided with the second connector terminal, the first connector terminal is disposed on one side surface of the control board, and a base end is inserted and fixed to the terminal hole from the one side surface. The second connector terminal is disposed on the other side surface of the control board, and a base end is inserted and fixed to the terminal hole from the other side surface (Claim 1).

  According to the motor unit with a speed reducer configured as described above, since the first and second connector terminals are disposed on both side surfaces of the control board, each connector terminal is not restricted by the mating connector terminal. It becomes possible to arrange in the vicinity of the control board. As a result, for example, as shown in FIG. 6, the dimension obtained by adding the plate thickness c of the control board 12 to the distances a and b of the first and second connector terminals 14 and 15 from the control board 12. It is sufficient to ensure e as the inner dimension of the substrate housing chamber 5, and the outer dimension of the substrate housing chamber 5 corresponding to the thickness direction of the control substrate 12 can be reduced.

  In addition, when the mating connector is connected to the connector housing, a moment centered on the base end (connection to the control board) is generated at each connector terminal that receives the pressing force. It can be a factor that breaks the connection. However, since the first and second connector terminals are disposed close to the control board, the moment generated by the pressing force is small and damage is prevented.

As another aspect, it is preferable that the tip ends of the first and second connector terminals are arranged substantially symmetrically across the axis of the output shaft of the motor in the thickness direction of the control board (Claim 2). .
According to the motor unit with a reduction gear configured as described above, the first and second connector terminal rows are arranged substantially symmetrically across the axis of the output shaft of the motor, and the first and second connector terminals are arranged in a symmetrical manner. A control board is disposed between them. Therefore, in the substrate thickness direction, the control substrate is arranged at a position close to the axis of the output shaft. Inevitably, the substrate housing chamber for housing the control board is also located close to the axis of the output shaft, and the adjacent motor and the substrate housing chamber are arranged substantially in the substrate thickness direction. A good installation property is realized with a so-called well-contained shape with less unevenness.

As another aspect, the first connector terminal is farther away in the plate thickness direction than the second connector terminal with respect to the control board, and the bent portion of the first connector terminal is placed in the board housing chamber. It is preferable that a terminal position restricting portion for restricting the position by contacting from the other side is formed.
According to the motor unit with a speed reducer configured as described above, the second connector terminal comes close to the control board and the moment at the time of connector connection is suppressed, and the separation distance between the first and second connector terminals ( The first connector is separated from the control board in order to secure (corresponding to A shown in FIG. 6), but the moment is prevented by being regulated by the terminal position regulating part formed in the board accommodating chamber. Is done. Therefore, for any connector terminal, damage to the connecting portion due to the moment when the connector is connected is prevented, and only the terminal position restricting portion for the first connector terminal needs to be formed in the board housing chamber. The shape inside the substrate housing chamber is simplified.

As another aspect, the first and second connector terminals are spaced apart from each other in the plate thickness direction with respect to the control board, respectively, in the board housing chamber, and at the bent portions of the first and second connector terminals, respectively. It is preferable that a pair of terminal position restricting portions that are in contact with each other from the other side to restrict the position is formed.
According to the motor unit with a speed reducer configured as described above, the first and second connectors are separated from the control board, but the positions thereof are regulated by the terminal position regulating portions formed in the board housing chamber. Generation of moment when connecting the connector is prevented. Therefore, any connector terminal is prevented from being damaged due to a moment when the connector is connected.

As another aspect, it is preferable that the connector housing is directed to the one side together with the ends of the first and second connector terminals.
According to the motor unit with a speed reducer configured as described above, the connector housing protrudes from the board housing chamber to one side. However, since the motor also protrudes to one side, the shape of the motor unit is packable. Is kept in a good substantially square shape.

As another aspect, it is preferable that the control board disposed in the board housing chamber has a substantially rectangular shape.
According to the motor unit with a speed reducer configured as described above, the rectangular control board is disposed in the board housing chamber.

  According to the motor unit with a reduction gear of the present invention, the outer dimension of the substrate housing chamber in the thickness direction of the control board can be sufficiently reduced by appropriately arranging the control board and each connector terminal.

It is a perspective view which shows the power window unit of embodiment. It is a right view which similarly shows a power window unit. It is a front view of the power window unit which showed the positional relationship of a reduction gear, a motor, and a control board without showing a main part casing. FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1 showing the power window unit. It is a right view of the power window unit which made the main body casing unillustrated. FIG. 5 is a schematic diagram of FIG. 4 showing a positional relationship between a control board and power supply and signal connector terminals in the power window unit of the embodiment. It is a schematic diagram which shows the positional relationship of the control board in the power window unit of patent document 1, and the connector terminal for electric power feeding and a signal.

Hereinafter, an embodiment in which the present invention is embodied in a power window unit that is installed in a door of a vehicle and moves up and down a window will be described.
FIG. 1 is a perspective view showing a power window unit according to the present embodiment, FIG. 2 is a right side view showing the same power window unit, and FIG. It is a front view of a power window unit. Hereinafter, according to FIG.

  The main body casing 2 of the power window unit 1 is made of a synthetic resin material. The wheel housing chamber 3 (corresponding to the gear housing chamber of the present invention), the worm housing chamber 4 (corresponding to the gear housing chamber of the present invention), and the substrate described below. The storage chamber 5 is integrally formed. The wheel housing chamber 3 has a circular shape when viewed from the front, and mounting brackets 6 are integrally formed at the lower left and right two locations and the upper one location of the wheel housing chamber 3. A worm wheel 8 is supported in the wheel housing chamber 3 so as to be rotatable about an axis Cw extending in the front-rear direction, and an output shaft 8 a of the worm wheel 8 projects forward from the wheel housing chamber 3.

  As shown in FIG. 3, a worm storage chamber 4 is drilled from the right side at a position above the wheel storage chamber 3 of the main casing 2, and the inside thereof communicates with the upper portion of the wheel storage chamber 3 positioned on the lower side. Yes. A flange portion 9b of a brushed motor 9 (hereinafter simply referred to as a motor) is fastened to the right side surface of the main casing 2 by screws 11 from the right side (corresponding to one side of the present invention). 9 a is inserted and arranged in the worm storage chamber 4. In the worm storage chamber 4, a worm 10 is connected to the output shaft 9 a and meshes with the worm wheel 8, and the worm wheel 8 and the worm 10 constitute a speed reducer 7.

  The power window unit 1 is mounted at a predetermined position in the door of the vehicle via three mounting brackets 6, and a serration 8b formed on the output shaft 8a of the worm wheel 8 is connected to the window lifting mechanism. Then, when the output shaft 9a of the motor 9 rotates in a predetermined direction, the rotation is decelerated through the worm 10 and the worm wheel 8, and then transmitted from the output shaft 8a to the window lifting mechanism, and the window corresponds to the rotation direction. Rises or falls.

  A substrate housing chamber 5 is defined in the main body casing 2 so as to be adjacent to the wheel housing chamber 3 on the right side. As a whole, the substrate storage chamber 5 has a rectangular box shape opened to the right side, and a control substrate 12 having a rectangular shape is disposed in the inside along the axis Cm of the output shaft 9a of the motor 9. . A connector cover 16 is detachably attached to the opening of the substrate storage chamber 5 from the right side, and the opening of the substrate storage chamber 5 is closed by a cover portion 16 a of the connector cover 16.

  A pair of upper and lower board-side terminals 13 are attached to the upper part of the control board 12 in the board housing chamber 5, and the control board 12 is electrically connected to the motor 9 via these board-side terminals 13. Further, the base ends of a plurality of connector terminals 14 and 15 (power supply and signal connector terminals described later) are connected to the lower right side of the control board 12, and the distal ends of the connector terminals 14 and 15 are the connectors of the connector cover 16. It is enclosed in the part 16b (equivalent to the connector housing of this invention). A connector 17 is constituted by the connector terminals 14 and 15 and the connector cover 16, and the structure around the connector 17 is a characteristic part of the present invention.

  The connector 17 is connected to a connector on the other side (vehicle side) from the right side. Power is supplied from the outside through the connector 17 and an operation signal is input through the connector 17. The control board 12 has a function of driving and controlling the motor 9. For example, the control board 12 drives the motor 9 on the basis of an operation signal input in response to the raising / lowering operation of the window, and based on a motor rotation angle detected by a rotation angle sensor (not shown). The elevating position of the window is determined, and the motor 9 is automatically stopped at the fully closed position or the fully open position.

  The connector terminals 14 and 15 are roughly classified into a power supply connector terminal 14 (corresponding to the first connector terminal of the present invention) and a signal connector terminal 15 (corresponding to the second connector terminal of the present invention). As described in [Background Art] with reference to FIG. 7, the front and rear positions of the connector terminals 14 and 15 correspond to the mating connector so that a separation distance A is secured within the width B of the connector portion 16 b. It is determined.

  However, in the technique of Patent Document 1, in order to avoid the row of signal connector terminals 115 connected on the control board 12 and to secure the separation distance A, the row of power supply connector terminals 114 is increased from the top of the control board 12. It is necessary to separate (equivalent to the separation distance a). For this reason, in order to ensure the separation distance a, the space e required in the front-rear direction (corresponding to the thickness direction of the control board of the present invention) increases, and the outer dimension of the substrate housing chamber 5 cannot be reduced sufficiently. It was.

  In view of such a problem, the present inventor, in the technology of Patent Document 1, the signal board terminals 114 and 115 are arranged on one side surface of the control board 12 together. It was noted that it was necessary to arrange the row of connector terminals 114 for power feeding while avoiding the row of connector terminals 115. That is, if the power supply and signal connector terminals 114 and 115 are provided on both sides of the control board 12, the connector terminals 114 and 115 are connected to the control board 12 without being restricted by the mating connector terminals 115 and 114. Proximity can be provided. Hereinafter, the connector structure of the power window unit 1 of this embodiment based on this knowledge will be described.

4 is a cross-sectional view taken along the line IV-IV of FIG. 1 showing the power window unit 1, and FIG. 5 is a right side view of the power window unit 1 with the main body casing 2 not shown.
As shown in FIGS. 3 to 5, terminal holes 12 a and 12 b for connecting power supply and signal connector terminals 14 and 15 are provided in the lower right side of the control board 12. The terminal holes 12a of the power supply connector terminals 14 are provided in a total of four locations so as to form a line in the vertical direction, and the terminal holes 12b of the signal connector terminals 15 form two lines in the vertical direction at the right adjacent position. As shown in FIG.

  A total of two power supply connector terminals 14 are arranged in the vertical direction on the rear surface of the control board 12 (corresponding to one aspect of the present invention), and a pair of upper and lower press-fits are provided at the base end of each power supply connector terminal 14. An end 14a is projected. These press-fit ends 14 a are press-fitted into the terminal holes 12 a from the rear surface of the control board 12, so that the base ends of the power supply connector terminals 14 are connected to the control board 12.

  Each power supply connector terminal 14 is bent at a right angle, and each tip is directed to the right side along the plate surface while being separated from the rear surface of the control board 12. As shown in FIG. 4, corner portions formed on the inner wall of the substrate housing chamber 5 come into contact with bent portions of the power supply connector terminals 14 from the left side (corresponding to the other side of the present invention), which will be described later. Thus, the corner functions as the terminal position restricting portion 18.

In addition, a total of five signal connector terminals 15 are arranged in the vertical direction on the front surface (other side surface) of the control board 12, and each signal connector terminal 15 is kept in contact with the control board 12. Each tip is directed rightward along the plate surface of the control board 12. A pair of left and right press-fit ends 15a project from the base end of each signal connector terminal 15 toward the control board 12, and these press-fit ends 15a are press-fitted into the terminal holes 12b from the front surface of the control board 12. The base end of each signal connector terminal 15 is connected to the control board 12.
In addition, the connection of the base end of each connector terminal 14 and 15 to the control board 12 is not restricted to press fitting, For example, you may solder.

  As a result, the power supply connector terminal 14 is directed rightward on the rear surface of the control board 12, and the signal connector terminal 15 is directed rightward on the front surface of the control board 12. The distal ends of all the connector terminals 14 and 15 are encased in the connector portion 16b of the connector cover 16, and the connector portion 16b is also directed to the right side together with the connector terminals 14 and 15, and the connector on the other side (vehicle side) from the right side. Are to be connected.

  Then, at the rear side position in the connector portion 16b, the power supply connector terminals 14 are arranged in the vertical direction along the plate surface of the control board 12, and at the front side position in the connector portion 16b, the signal connector terminals 15 are vertically moved. There is a line in the direction. In the front-rear direction, the axis Cm of the output shaft 9a of the motor 9 is positioned between the power supply connector terminal 14 and the signal connector terminal 15. In other words, the front-rear direction position of the control board 12 is set so that the power supply connector terminal 14 and the signal connector terminal 15 are located at equal distances across the axis Cm of the output shaft 9a of the motor 9, and the control board A substrate housing chamber 5 is defined so as to accommodate 12 and connector terminals 14 and 15.

  In this way, the rows of the power supply and signal connector terminals 14 and 15 are arranged symmetrically across the axis Cm of the output shaft 9a because only the connector cover 16 is used as a special product and the power window unit 1 is arranged. This is to make the same design symmetrical.

6 is a schematic diagram of FIG. 4 showing the positional relationship between the control board 12 and the power supply and signal connector terminals 14 and 15 in the power window unit 1 of the embodiment, which is compared with that of Patent Document 1 shown in FIG. However, the effect of this embodiment is demonstrated.
In any of the connector structures, in order to correspond to the vehicle-side connector, the power supply and signal for securing the separation distance A within the width B of the connector portion 16b of the connector cover 16 and the width B of the connector 16b in the front-rear direction. The front and rear positions of the connector terminals 14, 15, 114, and 115 are set under the same conditions.

  In the technique of Patent Document 1 shown in FIG. 7, since the power supply and signal connector terminals 114 and 115 are arranged on the rear surface of the control board 12, the signal connector terminals 115 connected on the control board 12. Therefore, it is necessary to secure a separation distance a larger than the separation distance A in order to arrange the row of power supply connector terminals 114 while avoiding the row. For this reason, the dimension e required as the inner dimension of the substrate housing chamber 12 (the separation distance a + the thickness c of the control substrate 12 + the protruding length d of the press-fit ends 114a and 115a) also increases. The separation distance a is used only for the arrangement of the power supply connector terminal 114, and a larger dead space E than is necessary for element arrangement on the control board 12 is formed on the left side of the power supply connector terminal 114. End up.

  On the other hand, in this embodiment shown in FIG. 6, since the power supply and signal connector terminals 14 and 15 are arranged on both side surfaces of the control board 12, each connector terminal 14 and 15 is connected to the other connector terminal. It is possible to dispose the control board 12 close to the control board 12 without being restricted by 15 and 14. Specifically, it is only necessary to separate the power supply and signal connector terminals 14 and 15 from the control board 12 by the distances a and b, respectively, and the thickness c of the control board 12 is added to the separation distances a and b. The dimension e is required as the inner dimension of the substrate storage chamber 5. Since the dimension e is equal to the distance A between the power supply and signal connector terminals 14 and 15, as a result, the formation of the dead space E described above can be prevented and the inner dimension e of the substrate housing chamber 5 can be reduced.

  In addition, since the press-fit ends 15a and 14a of the mating connector terminals 15 and 14 are located within the separation distances a and b of the connector terminals 14 and 15, the press-fit ends 14a and 15a as in Patent Document 1 are located. The fact that the protrusion length d is not included in the dimension e is one of the factors that can reduce the dimension e. As a result, the inner dimension e required for the substrate accommodating chamber 5 of the present embodiment is much smaller than the inner dimension e required in Patent Document 1, and the substrate accommodating chamber corresponding to the thickness direction of the control substrate 12. The outer size of 5 can be greatly reduced.

Furthermore, not only can the outside dimension of the substrate housing chamber 5 in the front-rear direction be reduced, but also the power window unit 1 can be formed into a so-called well-fitted shape suitable for installation in the door.
In any of the connector structures, the power supply and signal connector terminals 14, 15, 114, and 115 are arranged symmetrically across the axis Cm of the output shaft 9 a of the motor 9. However, in the technique of Patent Document 1 shown in FIG. 7, as a result of arranging both rows of power supply and signal connector terminals 114 and 115 on the rear surface of the control board 12, the control board 12 with respect to the axis Cm of the output shaft 9a. Is offset greatly forward. Inevitably, the substrate housing chamber 5 is also expanded forward to accommodate the control substrate 12, and is offset from the axis Cm of the output shaft 9 a and thus the motor 9.

  Since the motor 9 and the substrate housing chamber 5 adjacent to each other in the vertical direction are offset in the front-rear direction, the power window unit 1 has a so-called uneven shape with a poor fit. For this reason, careful consideration is required to prevent interference with peripheral members such as a window lifting mechanism during installation in the door, and installation in the door is not good.

  On the other hand, in the present embodiment shown in FIG. 6, the rows of power supply and signal connector terminals 14 and 15 are symmetrically arranged across the axis Cm of the output shaft 9a of the motor 9, and these power supply and signal connectors are arranged. A control board 12 is disposed between the terminals 14 and 15. For this reason, in the front-rear direction, the control board 12 is disposed at a position close to the axis Cm of the output shaft 9a.

  Inevitably, the substrate storage chamber 5 for storing the control substrate 12 is also positioned so as to substantially coincide with the axis Cm of the output shaft 9a without being largely offset, and the motor 9 and the substrate storage chamber 5 adjacent to each other in the vertical direction are arranged. Since the power window unit 1 substantially coincides in the front-rear direction, the power window unit 1 has a so-called constricted shape with less unevenness. For this reason, it can install without requiring much consideration for the interference prevention with the peripheral member in a door, and can implement | achieve favorable installation property.

  In addition, in this embodiment, the connector portion 16b of the connector cover 16 is also directed to the right side together with the tips of the power supply and signal connector terminals 14 and 15. For this reason, as shown in FIG. 1, the connector portion 16b projects from the board housing chamber 5 to the right side. However, since the motor 9 also projects to the right side, the shape of the power window unit 1 when viewed from the front is approximately. It is kept in a square shape. In the case of mass transportation, the substantially square-shaped power window unit 1 has a good packing property and can increase the loading capacity per pallet. Therefore, not only the performance as a product but also a completely different advantage of convenience during transportation before that is obtained.

On the other hand, the operation and effect when the vehicle-side connector is connected to the connector 17 of the power window unit 1 installed in the door will be described.
A pressing force to the left side acts on the power supply and signal connector terminals 14 and 15 when the connector 17 is connected by contact with the connector terminal of the vehicle side connector. Each connector terminal 14, 15 that has received a pressing force generates a moment centered on the base end (the location where it is connected to the control board 12), and the excessive moment causes damage such as cracks at the location where the control board 12 is connected It can be a factor to be generated.

  In the technique of Patent Document 1 shown in FIG. 7, the connector portion 16b and the connector terminals 114 and 115 are coupled by the coupling member 100, and the connector portion 16b receives a pressing force acting on the connector terminals 114 and 115 when the connector is connected. It is designed to prevent moments from occurring and eventually damage. In order to employ such a configuration, after the connector terminals 114 and 115 are coupled to the connector portion 16 b by the coupling member 100, the base ends of the connector terminals 114 and 115 are connected to the terminal holes 12 a and 12 b of the control board 12. It is necessary to press fit. For this reason, it is not applicable to the configuration of this embodiment in which the base ends of the power supply and signal connector terminals 14 and 15 are press-fitted from both sides of the control board 12.

  However, as already described, since the connector terminals 14 and 15 of this embodiment are arranged close to each other on both sides of the control board 12, the moment generated when receiving the pressing force is originally small. By taking the measures described, damage due to moment is reliably prevented.

  As described above, in the present embodiment, each signal connector terminal 15 is kept in contact with the control board 12, whereas each power supply connector terminal 14 is further separated from the control board 12. ing. The signal connector terminal 15 in contact with the control board 12 has a very small separation distance b (shown in FIG. 6), and the moment generated by the pressing force is extremely small. Is prevented in advance.

  Further, the separation distance a (shown in FIG. 6) of the power supply connector terminal 14 is sufficiently smaller than the separation distance a formed by the power supply connector terminal 114 of Patent Document 1, and therefore the moment generated by the pressing force is originally originally. Although it is small, it is relatively large compared to the separation distance b of the signal connector terminal 15. However, since the terminal position restricting portion 18 is in contact with the bent portion of each power feeding connector terminal 14 from the left side to regulate the position, each power feeding connector terminal 14 is subjected to a pressing force when the connector 17 is connected. In this case, no moment is generated, and there is no possibility that the connection portion with the control board 12 is damaged.

  As described above, the signal connector terminal 15 is brought into contact with the control board 12 to suppress the moment when the connector is connected, and the power supply and the signal connector terminals 14 and 15 are secured for securing the separation distance A. The connector terminal 14 is separated from the control board 12, and the occurrence of moment is prevented by the terminal position restricting portion 18 formed in the board housing chamber 5.

  Therefore, in any of the connector terminals 14 and 15, it is possible to prevent damage to the connection portion with the control board 12 due to the moment when the connector is connected, and the board housing chamber 5 has a single unit for the power supply connector terminal 14. Only one terminal position restricting portion 18 may be formed. For this reason, since the main body casing 2 can be easily resin-molded by preventing the shape of the substrate housing chamber 5 from becoming complicated, the power window unit 1 can be manufactured while preventing damage to the connection portion with the control substrate 12. Cost can be reduced.

  This is the end of the description of the embodiment, but the aspect of the present invention is not limited to this embodiment. For example, in the above-described embodiment, the power window unit 1 that lifts and lowers the window is embodied, but the type of the motor unit is not limited to this, and can be arbitrarily changed. For example, the motor unit can be applied to a sunroof opening / closing motor unit. Also good.

  In the above embodiment, the power supply connector terminal 14 and the signal connector terminal 15 are separately provided on both sides of the control board 12, but the arrangement and types of the connector terminals 14 and 15 are not limited thereto. . For example, the power supply connector terminal 14 and the signal connector terminal 15 may be mixed on both sides of the control board 12, or if another power supply path is provided for power supply, only the signal connector terminal 15 is controlled. It may be disposed on both sides of the substrate 12. Further, any one of the connector terminals 14 and 15 may be one instead of a plurality, and the arrangement of the connector terminals 14 and 15 is also included in the present invention.

  In the above embodiment, the tip ends of the power supply connector terminal 14 and the signal connector terminal 15 are arranged in two rows on both sides of the control board 12, but the row of the connector terminals 14 and 15 is not limited to this. Instead, for example, one row may be added to form a three-row arrangement.

In the above embodiment, the rows of the power supply and signal connector terminals 14 and 15 are arranged symmetrically across the axis Cm of the output shaft 9a of the motor 9, but it is not always necessary to arrange them symmetrically with respect to the axis Cm. It is good also as arrangement of.
Further, in the above embodiment, the signal connector terminal 15 is brought into contact with the control board 12 and the position restriction by the terminal position restricting portion 18 is not required. However, the signal connector terminal 15 is not necessarily brought into contact with the control board 12. Absent. Therefore, in order to ensure the separation distance A, the power supply and signal connector terminals 14 and 15 may be separated from the control board 12. In this case, similarly to the terminal position restricting portion 18 of the power feeding connector terminal 14, a new terminal position restricting portion is provided in the board housing chamber 5 so as to contact the bent portion of the signal connector terminal 15 from the left side. What is necessary is just to form additionally.

1 Power window unit 2 Body casing 3 Wheel housing (gear housing)
4 Worm storage chamber (gear storage chamber)
5 Substrate chamber 8 Worm wheel (reduction gear)
9 Motor 9a Output shaft 10 Worm (reduction gear)
12 Control board 12a, 12b Terminal hole 14 1st connector terminal (connector terminal for electric power feeding)
15 Second connector terminal (signal connector terminal)
16b Connector part (connector housing)
18 Terminal position restricting section

Claims (6)

A speed reducer disposed in the gear housing chamber of the main body casing;
A motor attached to the main body casing from one side and having an output shaft connected to the speed reducer in the gear housing chamber;
A substrate housing chamber defined in the main body casing to be adjacent to the gear housing chamber on the one side;
A control board disposed in the board housing chamber in a posture along the axis of the output shaft of the motor and electrically connected to the motor;
A base end is inserted and fixed in a terminal hole penetrating the control board, and each distal end is enclosed in a connector housing in the same direction along the plate surface of the control board. In the motor unit with a speed reducer, the first and second connector terminals arranged so that the front ends form a plurality of rows separated from each other in the thickness direction of the control board.
The first connector terminal is disposed on one side surface of the control board, and a base end is inserted and fixed to the terminal hole from the one side surface,
The motor unit with a speed reducer, wherein the second connector terminal is disposed on the other side surface of the control board and has a base end inserted and fixed into the terminal hole from the other side surface. 2. The speed reducer according to claim 1, wherein tips of the first and second connector terminals are arranged substantially symmetrically across an axis of the output shaft of the motor in a thickness direction of the control board. Motor unit with. The first connector terminal is far away in the plate thickness direction with respect to the control board than the second connector terminal,
3. The speed reducer according to claim 1, wherein the board housing chamber is formed with a terminal position restricting portion for restricting a position by contacting a bent portion of the first connector terminal from the other side. Motor unit with. The first and second connector terminals are spaced apart from each other in the thickness direction with respect to the control board,
2. The substrate housing chamber is formed with a pair of terminal position restricting portions for restricting positions by contacting the bent portions of the first and second connector terminals respectively from the other side. 2. A motor unit with a reduction gear according to 2. The motor unit with a reduction gear according to any one of claims 1 to 4, wherein the connector housing is oriented to the one side together with leading ends of the first and second connector terminals. The motor unit with a reduction gear according to any one of claims 1 to 5, wherein the control board disposed in the board housing chamber has a substantially rectangular shape.

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