JP3545874B2 - Sunroof drive - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention belongs to the technical field of a sunroof drive device for opening and closing a sunroof provided on a roof of a vehicle.
[0002]
[Prior art]
Generally, a sunroof provided on a roof of a vehicle includes an opening / closing panel for opening / closing a roof opening, a panel support mechanism for supporting the opening / closing panel so as to be slidable and tiltable, and a driving cable (spiral cable). It comprises a sunroof drive device (motor with a speed reduction mechanism) for opening and closing operation. In such a device, it is necessary to automatically stop the motor drive at the fully closed position, the fully opened slide position, and the fully opened tilt position.Therefore, the sunroof drive device includes a position detection mechanism for detecting an open / close operation position. And a control circuit for switching the motor drive based on the position detection.
[0003]
[Problems to be solved by the invention]
By the way, the position detecting mechanism is configured by using a cam gear interlocked with driving of a motor and a detection switch for detecting a rotational position of the cam gear, but conventionally, a plate-shaped member extended to a reduction gear case is used. The cam gear, the detection switch, and the control board (including the relay) were arranged side by side on the frame, so the length and width dimensions could not be increased, and the terminals of the detection switch were connected via lead wires. It is necessary to connect to the control board, and there is a disadvantage that the soldering process is complicated.
[0004]
[Means for Solving the Problems]
SUMMARY OF THE INVENTION The present invention has been made for the purpose of providing a sunroof drive device capable of solving these problems in view of the above situation, and the invention of claim 1 is directed to a cam gear linked to motor drive. A sunroof drive device, comprising: a detection switch for detecting a rotational position of the cam gear; a control board for switching motor drive based on a detection signal of the detection switch; and a control unit frame for incorporating the control board. The control board is opposed to the upper surface or the lower surface of the cam gear at a predetermined interval, and the detection switch is mounted on a side portion of a support frame portion forming a control portion frame, and is provided between the control substrate and the cam gear. This is a sunroof drive device which is arranged in a space and has terminals T of the assembled detection switches directly soldered to a control board. That is, since the cam gear, the detection switch, and the control board are arranged so as to overlap in the vertical direction, the length and width dimensions can be made as small as possible. Therefore, the lead wire is not required, and the soldering process can be simplified.
[0005]
According to a second aspect of the present invention, there is provided a sunroof drive device comprising: a cam gear interlocked with driving of a motor ; a detection switch for detecting a rotational position of the cam gear; and a control board for switching motor driving based on a detection signal of the detection switch. The control board is opposed to the upper surface or the lower surface of the cam gear at a predetermined interval, and the terminals of the detection switch arranged in the space between the control board and the cam gear are directly connected to the control substrate . This is a sunroof drive device in which at least a part of a relay provided for switching a motor drive based on a detection signal is arranged in a space between a cam gear and a control board. That is, since the relay enters the space between the cam gear and the control board, the length and width can be further reduced.
[0006]
According to a third aspect of the present invention, there is provided a sunroof drive according to the first aspect, wherein the relay for switching the motor drive based on the detection signal of the detection switch is provided so as to avoid a space between the cam gear and the control board. Device. In other words, since the distance between the cam gear and the control board can be set smaller than the height of the relay, the thickness can be as large as possible while the cam gear, the detection switch, and the control board are vertically stacked. It is possible to reduce the size.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, one embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a sunroof drive device (motor having a speed reduction mechanism). The sunroof drive device 1 is an open / close panel (not shown) supported by a panel support mechanism (not shown) so as to be able to slide and open and tilt. ) Is installed in an attic space of a vehicle to be opened and closed via a drive cable (spiral cable).
[0008]
Reference numeral 2 denotes a motor unit of the sunroof drive device 1. The motor unit 2 includes a bottomed cylindrical yoke 3, a motor shaft 4, a rotor core (not shown), a commutator (not shown), and a brush (see FIG. Although not shown), a permanent magnet (not shown) and the like are incorporated therein, the distal end side of the motor shaft 4 protrudes from the yoke 3 and its outer peripheral surface extends over a predetermined range. The worm 4a is integrally formed.
[0009]
Reference numeral 9 denotes a reduction unit integrally assembled with the motor unit 2. The reduction unit 9 includes a reduction gear case 10, a worm wheel 11 that meshes with the worm 4a, and a slip clutch mechanism (torque). An output gear shaft 13 and the like, which are integrally rotatably connected via a limiter 12, are incorporated. When the worm 4a and the worm wheel 11 drive the output gear 13a in the forward and reverse directions with the reduced motor power, the drive cable meshing with the output gear 13a performs a push / pull operation, and the opening / closing panel slides based on the push / pull operation. (Including a lift operation) and a tilt opening / closing operation are performed, and all of the above basic configurations are conventional.
[0010]
Reference numeral 10a denotes a control unit frame integrally formed with the reduction gear case 10 to incorporate the drive control unit 14. The control unit frame 10a includes a frame unit 10b having openings at upper and lower sides, and a support shaft. The supporting frame portion 10c is erected on the supporting frame portion 10d, but the two frame portions 10b and 10d are partially integrated via the reinforcing frame portions 10e and 10f. The necessary strength is secured.
[0011]
Reference numeral 15 denotes a cam gear rotatably supported by the support shaft 10c via a cam guide 16. On the outer peripheral surface of the cam gear 15, upper and lower two-stage meshing gears 15a and 15b shifted from each other by a half pitch are provided. On the other hand, on the lower surface of the cam gear 15, a first cam groove 15c and a second cam groove 15d are formed. The meshing gears 15a and 15b intermittently mesh with a partial gear 17 provided on the output gear shaft 13, and rotate the cam gear 15 by a predetermined pitch each time the output gear shaft 13 makes one rotation. When the pitch is set so that the cam gear 15 rotates by approximately 360 ° when is pushed and pulled over the entire range (operating range from the slide fully open position to the tilt fully open position), the rotational positions of the cam grooves 15c and 15d are adjusted. , The fully-closed position, the fully-slided position, and the fully-tilted position of the open / close panel can be detected.
[0012]
LS1 and LS2 are first and second limit switches (detection switches) arranged opposite to the lower surface of the cam gear 15, and the limit switches LS1 and LS2 are arranged at positions corresponding to the cam grooves 15c and 15d, respectively. The switch is switched to “OFF” when the push button is pressed against the lower surface of the cam gear 15, and is switched to “ON” when the push button is inserted into the cam grooves 15 c and 15 d. That is, as shown in FIG. 10, when the motor is normally driven (at the time of tilt closing operation and at the time of slide opening operation), the second limit switch LS2 detects the fully closed position and the fully opened position of the slide, while at the time of motor reverse driving ( During the slide closing operation and the tilt opening operation), the first limit switch LS1 detects the fully closed position and the fully opened tilt position. Notches 10g and 10h are cutouts formed in the frame 10b for facilitating the screwing operation of the first and second limit switches LS1 and LS2.
[0013]
Reference numeral 18 denotes a control board (printed board) for switching the motor drive based on the detection signals of the limit switches LS1 and LS2 and an external sunroof operation signal. The control board 18 includes first and second limit switches. LS1, LS2, a motor lead wire 19, a power lead wire 20, an operation signal input connector 21, a relay unit 22 and the like are connected by soldering to form a motor drive control circuit 23 as shown in FIG. 18 is mounted below the cam gear 15 at a predetermined interval, and the terminals T of the first and second limit switches LS1 and LS2 previously mounted between the control board 18 and the cam gear 15 are directly connected to the control board 18. It is designed to be connected by soldering. That is, since the cam gear 15, the limit switches LS1, LS2, and the control board 18 are arranged vertically in an overlapping manner, the length and width of the drive control unit 14 can be reduced as much as possible. In addition, since the terminals T of the limit switches LS1 and LS2 are directly connected by soldering to the control board 18, no lead wire is required and the soldering process can be simplified. Since the motor drive control circuit 23 employs a general circuit, a detailed description is omitted.
[0014]
By the way, the relay unit 22 is configured by mounting a first relay RY1 for reverse rotation drive of the motor and a second relay RY2 for forward rotation of the motor in a case body having a rectangular shape in a plan view. The relay unit 22 of the present embodiment is arranged vertically along the tip frame of the frame portion 10b, avoiding the space between the cam gear 18 and the control board 18. That is, since the distance between the cam gear 15 and the control board 18 can be set smaller than the height of the relay unit 22, the cam gear 15, the limit switches LS1, LS2, and the control board 18 are vertically overlapped. Nevertheless, the thickness dimension can be made as small as possible. On the other hand, as shown in FIGS. 12 and 13, at least a part of the relay unit 22 is arranged laterally along the side frame of the frame 10 b so as to be located in the space between the cam gear 15 and the control board 18. It is also possible. In this case, since the space between the cam gear 15 and the control board 18 is also used as the space for arranging the relay unit 22, there is an advantage that the length and width of the drive control unit 14 can be further reduced.
[0015]
Reference numerals 24 and 25 denote a pair of upper and lower cover members. Of the cover members 24 and 25, the upper cover member 24 formed of a metal plate covers the upper openings of the speed reduction unit 9 and the drive control unit 14. While being assembled from above, the resin-molded lower cover body 25 is assembled from below to cover the lower opening of the drive control unit 14. That is, the control unit frame 10a for incorporating the drive control unit 14 is a frame frame unit 10b having upper and lower openings, and the upper and lower openings are covered with separate covers 24 and 25, respectively. The mounting direction of the substrate 18 can be freely set, and the degree of freedom in layout can be increased.
[0016]
When assembling the drive control unit 14 of the sunroof drive device 1 configured as described above, first, the first and second limit switches LS1 and LS2 are assembled to the side surface of the support frame unit 10d. Next, the control board 18 to which the motor lead wire 19, the power supply lead wire 20, the operation signal input connector 21, and the relay unit 22 are soldered is assembled from the lower opening of the frame portion 10b. The terminals T of the first and second limit switches LS1, LS2 are directly soldered to the control board 18. On the other hand, a cam gear 15 and a cam guide 16 are assembled from the upper opening of the frame 10b, and then the upper and lower openings of the frame 10b are covered with a pair of upper and lower covers 24 and 25, respectively.
[0017]
As described above, in the present embodiment, the control board 18 is mounted below the cam gear 15 at a predetermined interval, and the first and second limit switches previously mounted between the control board 18 and the cam gear 15 are mounted. Since the terminals T of LS1 and LS2 are directly soldered to the control board 18, the cam gear 15, the limit switches LS1 and LS2, and the control board 18 are vertically overlapped and the length and width of the drive control unit 14 can be adjusted. If possible, the lead wires of the limit switches LS1 and LS2 are not required, and the soldering process can be simplified.
[0018]
In addition, since the relay unit 22 is arranged vertically along the end frame of the frame portion 10b while avoiding the space between the cam gear 18 and the control board 18, the distance between the cam gear 15 and the control board 18 is reduced. The height can be set smaller than the height of the relay unit 22. As a result, the thickness can be adjusted while the cam gear 15, the limit switches LS1, LS2, and the control board 18 are vertically overlapped. It can be as small as possible.
[0019]
Further, the relay unit 22 may be arranged laterally along the side frame of the frame portion 10b so that at least a part of the relay unit 22 is located in the space between the cam gear 15 and the control board 18. In this case, the space between the cam gear 15 and the control board 18 is also used as the space for arranging the relay unit 22, and the length and width of the drive control unit 14 can be further reduced.
[0020]
Further, the control unit frame 10a for incorporating the drive control unit 14 is a frame frame unit 10b having an opening at the top and bottom, and after incorporating control components into the frame unit 10b from the upper and lower directions, the upper and lower openings are formed. Are covered with separate cover members 24 and 25, respectively, so that the direction in which the cam gear 15 and the control board 18 are incorporated can be freely set to improve the assembling workability. Can also contribute to
[Brief description of the drawings]
FIG. 1 is a plan view of a sunroof drive device.
FIG. 2 is a bottom view of the same.
FIG. 3 is a side view of the same.
FIG. 4 is a plan view of the sunroof drive device in a state where a cam gear and a control board are removed.
FIG. 5 is a bottom view of the same.
FIG. 6 is a side view of the same.
FIG. 7 is a front view of the same.
FIG. 8 is a plan view showing the inside of a drive control unit.
FIG. 9 is a longitudinal sectional view of the same.
FIG. 10 is an explanatory diagram of an operation of a limit switch.
FIG. 11 is a circuit diagram showing a sunroof drive control circuit.
FIG. 12 is a plan view showing another example of the drive control unit.
FIG. 13 is a longitudinal sectional view of the same.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 sunroof drive device 2 motor unit 9 reduction unit 10 reduction gear case 10a control unit frame 10b frame frame unit 10d support frame unit 15 cam gear 18 control board 22 relay unit 24 upper cover body 25 lower cover body LS1 first limit switch LS2 second Limit switch T terminal

Claims (3)

A cam gear interlocked with motor driving; a detection switch for detecting a rotational position of the cam gear; a control board for switching motor driving based on a detection signal of the detection switch; and a control unit frame for incorporating the control board. In the sunroof drive device, the control board is opposed to an upper surface or a lower surface of a cam gear at a predetermined interval, and the detection switch is mounted on a side surface portion of a support frame portion that forms a control unit frame. A sunroof drive device which is arranged in a space between the cam switch and the cam gear, and in which the terminal T of the assembled detection switch is directly soldered to a control board. In a sunroof drive device including a cam gear linked to motor driving, a detection switch for detecting a rotational position of the cam gear, and a control board for switching motor driving based on a detection signal of the detection switch, the control board includes a cam gear. The motor is driven based on the detection signal of the detection switch while the terminal of the detection switch arranged in the space between the control substrate and the cam gear is directly connected to the control substrate while facing the upper surface or the lower surface with a predetermined interval. A sunroof drive device wherein at least a part of a relay provided for switching is arranged in a space between a cam gear and a control board. 2. The sunroof drive device according to claim 1, wherein a relay for switching motor drive based on a detection signal of the detection switch is provided so as to avoid a space between the cam gear and the control board.

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