JP7287154B2 - Motorcycle control device - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to control devices for motorcycles.

A technique of mounting a heat-generating component next to a surface-mounted connector is known.

JP 2018-010884 A

By the way, when mounting a driving driver that generates a driving signal for driving a turn signal lamp for a motorcycle on a circuit board, heat generation and noise of the driving driver adversely affect (for example, other electronic components on the circuit board A suitable arrangement that can reduce the adverse effects on

Accordingly, an object of the present disclosure is to achieve proper placement of a drive driver that generates a drive signal for driving a turn signal light for a motorcycle.

In one aspect, a circuit board;
a drive driver mounted on the circuit board for generating a drive signal for driving a turn signal light for a motorcycle;
a surface mount connector mounted on the circuit board and having a rectangular shape when viewed in a direction perpendicular to the circuit board;
a wiring formed on the circuit board and electrically connecting the driving driver and a terminal at a corner of the rectangle among a plurality of terminals of the surface mount connector ;
One or more of the driving drivers are provided for each of the four motorcycle turn signal lights,
A control device for a motorcycle is provided, wherein all four terminals at the corners of the rectangle among the plurality of terminals of the surface mount connector are electrically connected to the plurality of drive drivers.
Also, in another aspect,
a circuit board (30);
a drive driver (40) mounted on the circuit board for generating a drive signal to drive a turn signal light for a motorcycle;
a surface mount connector (50) mounted on the circuit board and having a rectangular shape when viewed in a direction perpendicular to the circuit board;
including a wiring (70) formed on the circuit board and electrically connecting the driving driver and the rectangular corner terminals of the plurality of terminals (54) of the surface mount type connector; ,
There is provided a motorcycle control device, wherein at least four of the plurality of drive drivers are provided near corners of the rectangle with respect to the surface mount connector.

Advantageous Effects of Invention According to the present disclosure, it is possible to realize proper placement of a drive driver that generates a drive signal for driving a turn signal light for a motorcycle.

FIG. 4 is a diagram schematically showing a mounting state of a display device according to one embodiment; 1 is a system diagram schematically showing a motorcycle control system according to an embodiment; FIG. FIG. 2 is a plan view schematically showing how the motorcycle control device is mounted on a circuit board; FIG. 4 is an explanatory diagram of allocation destinations for multiple terminals of a connector;

Each embodiment will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a diagram schematically showing a mounting state of a display device 1 according to one embodiment.

The display device 1 is mounted on a motorcycle. The display device 1 displays various vehicle information such as vehicle speed and engine speed. The display device 1 is mounted at a position where the user (driver) can easily see it. In FIG. 1, the display device 1 is arranged between the steering wheels B of the motorcycle A and functions as an instrument.

FIG. 2 is a system diagram schematically showing the motorcycle control system 2 according to this embodiment.

The motorcycle control system 2 includes a motorcycle control device 20 . The motorcycle control device 20 is electrically connected to the above-described display device 1 and the direction indicator lamp 4 for the motorcycle.

The direction indicator lights 4 are provided at appropriate locations on the motorcycle. In this embodiment, two pairs of direction indicator lights 4 are provided on the front and rear sides. Each of the four directional indicator lights 4 uses an LED (Light Emitting Diode) as a light source.

The motorcycle control device 20 is composed of, for example, a microcomputer. The motorcycle control device 20 controls the display device 1, the turn signal lights 4, and the like.

In this embodiment, in particular, the motorcycle controller 20 controls lighting of the direction indicator lights 4 . Since the direction indicator lamp 4 uses an LED as a light source as described above, lighting is controlled by a pulse signal having a predetermined period (for example, about 1.5 Hz).

FIG. 3 is a plan view schematically showing a mounting state of specific electronic components on the circuit board 30 of the motorcycle control device 20. As shown in FIG. FIG. 4 is an explanatory diagram of allocation destinations for multiple terminals of the connector 50 . In the following description, the top view refers to the view of FIG. 3, which is the view seen in the direction perpendicular to the circuit board 30. As shown in FIG. In FIG. 4, only some of the terminals 54 are denoted by reference numerals for ease of viewing.

The circuit board 30 is mounted inside the case of the display device 1, for example.

The circuit board 30 is mounted with various electronic components related to the motorcycle control device 20, as well as a constant voltage circuit that generates a low voltage based on power from a battery (not shown), and the like.

In this embodiment, a driver 40 and a connector 50 are mounted on the circuit board 30 as schematically shown in FIG. 3 schematically shows only part of the circuit board 30 (that is, shows only part of the electronic components mounted on the circuit board 30). Accordingly, electronic components other than the driver 40 and the like shown in FIG. 3 are also mounted on the circuit board 30 . The circuit board 30 may be the only circuit board provided on the motorcycle. In this case, since a relatively large number of electronic components are mounted on the circuit board 30, the configuration according to this embodiment described below is preferable.

The driving driver 40 is for driving the four direction indicator lights 4 , and one driver is provided for each direction indicator light 4 . Note that in a modification, two or more drivers 40 may be provided for one directional indicator light 4 . Each driving driver 40 pulse-drives the LED, which is the light source of the corresponding direction indicator light 4, according to a command from the microcomputer (not shown) of the motorcycle control device 20. FIG. As a result, the turn signal lamp 4 is lit (blinks) in a predetermined manner.

The connector 50 is of a surface mount type and is provided on one surface of the circuit board 30 (the surface visible in FIG. 3). The connector 50 is joined to the circuit board 30 by a solder reflow process or the like.

As schematically shown in FIGS. 3 and 4, the connector 50 has a rectangular shape when viewed from above. As schematically shown in FIG. 4, the connector 50 has fixing terminals 52 at both longitudinal ends of a rectangle and a plurality of terminals 54 along the longitudinal direction. As schematically shown in FIG. 4, the terminals 54 extend in two rows along the longitudinal direction when viewed from above. That is, the connector 50 has terminals 54 provided at predetermined intervals along the longitudinal direction on both sides in the lateral direction.

By the way, as described above, the driving driver 40 pulse-drives the LED, which is the light source of the direction indicator light 4, and thus can become a source of noise. Further, the drive driver 40 operates based on a power supply voltage of 8V, which is higher than 5V of the microcomputer, for example, and consumes relatively high power, so it tends to generate a relatively large amount of heat.

Therefore, on the circuit board 30, an appropriate arrangement is desired that can reduce the adverse effects of the heat generated by the driver 40 and noise.

In this regard, in this embodiment, the driver 40 is mounted on the surface of the circuit board 30 on the same side as the connector 50, and is provided near the rectangular corner 59 of the connector 50, as shown in FIG. . It should be noted that “near the corner 59 ” is closer to the corner 59 than other electronic components on the circuit board 30 . This makes it easier for the heat of the drive driver 40 to be transferred to the fixing terminals 52 of the connector 50 . As a result, a configuration in which the heat of the drive driver 40 can be dissipated through the fixing terminals 52 can be realized, and the heat dissipation of the drive driver 40 can be efficiently improved. Hereinafter, the configuration in which the driver 40 is arranged in the vicinity of the rectangular corner 59 of the connector 50 in this way is also referred to as "arrangement of the driver 40 in the vicinity of the corner of the connector".

Further, in this embodiment, as conceptually indicated by an arrow R1 in FIG. Each driver 40 is electrically connected to the terminal 54 at the end of the rectangle in the longitudinal direction. The electrical connection between the terminals 54 and the drive driver 40 may be realized by wiring (printed wiring) 70 (schematically shown in FIG. 3). Hereinafter, the configuration in which the driving drivers 40 are electrically connected to the terminals 54 at the rectangular corners 59 of the connector 50 in this manner is also referred to as "allocation of the driving drivers 40 to the connector corner terminals".

In the example shown in FIGS. 3 and 4 , each of the four drive drivers 40 is electrically connected to a corresponding one of the four rectangular corner terminals 54 of the connector 50 . That is, the terminals 54 at the four rectangular corners of the connector 50 are all assigned to the driver 40 . As a result, the distance between the rectangular corners 59 of the connector 50 and the drive driver 40 on the circuit board 30 can be effectively shortened. can be increased to

Also, in this embodiment, each of the four wirings 70 connecting the four drivers 40 and the corresponding terminals 54 does not cross other wirings formed on the circuit board 30 . As a result, adverse effects (adverse effects on operations of other electronic components on the circuit board 30) caused by noise radiated from the wirings 70 of the four drivers 40 can be reduced. Formation of the wiring 70 in such a manner that it does not intersect with other wirings is facilitated by the arrangement of the driver 40 near the corner of the connector and the allocation of the driver 40 to the terminal of the connector corner as described above. be done. That is, due to the arrangement of the drive drivers 40 in the vicinity of the connector corners and the assignment of the drive drivers 40 to the connector corner terminals as described above, four wirings connecting the four drive drivers 40 and the corresponding terminals 54 are provided. Since the wiring length of each of the wirings 70 can be made relatively short, restrictions on routing of other wirings that may be caused by the four wirings 70 can be minimized. As a result, wiring that intersects the wirings 70 related to the four drivers 40 and other wirings (for example, wirings in the inner layer of the circuit board 30) can be easily avoided, and radiation from the wirings of the four drivers 40 can be avoided. adverse effects of noise (adverse effects on the operation of other electronic components on the circuit board 30) can be reduced.

Although each embodiment has been described in detail above, it is not limited to a specific embodiment, and various modifications and changes are possible within the scope described in the claims. It is also possible to combine all or more of the constituent elements of the above-described embodiments.

For example, in the embodiment described above, the four drivers 40 are all electrically connected to one of the four rectangular corner terminals 54 of the connector 50, but the present invention is not limited to this. For example, only some of the four drivers 40 may be electrically connected to any one of the four rectangular corner terminals 54 of the connector 50 . In this case, the other drive driver 40 may be electrically connected to the terminal 54 one inside the terminal 54 at the corner. In this case, the corner terminals 54 may be used to connect the ground line and the power supply line.

Moreover, in the above-described embodiment, the four drivers 40 are all arranged near the terminals 54 at the four rectangular corners of the connector 50, but the present invention is not limited to this. For example, only some of the four drivers 40 may be arranged near the terminals 54 at the four rectangular corners of the connector 50 .

1 display device 2 motorcycle control system 4 direction indicator 20 motorcycle control device 30 circuit board 40 drive driver 50 connector 52 fixing terminal 54 terminal 59 corner 70 wiring A motorcycle B steering wheel

Claims (4)

a circuit board (30);
a drive driver (40) mounted on the circuit board for generating a drive signal to drive a turn signal light for a motorcycle;
a surface mount connector (50) mounted on the circuit board and having a rectangular shape when viewed in a direction perpendicular to the circuit board;
including a wiring (70) formed on the circuit board and electrically connecting the driving driver and the rectangular corner terminals of the plurality of terminals (54) of the surface mount type connector; ,
One or more of the driving drivers are provided for each of the four motorcycle turn signal lights,
all the four terminals at the corners of the rectangle among the plurality of terminals of the surface mount connector are electrically connected to the plurality of driving drivers;
Control device for motorcycles. a circuit board (30);
a drive driver (40) mounted on the circuit board for generating a drive signal to drive a turn signal light for a motorcycle;
a surface mount connector (50) mounted on the circuit board and having a rectangular shape when viewed in a direction perpendicular to the circuit board;
including a wiring (70) formed on the circuit board and electrically connecting the driving driver and the rectangular corner terminals of the plurality of terminals (54) of the surface mount type connector; ,
At least four of the plurality of drive drivers are provided near corners of the rectangle with respect to the surface-mounted connector,
Control device for motorcycles. 3. The motorcycle control device according to claim 1, wherein said wiring does not cross other wirings formed on said circuit board. The control device for a motorcycle according to any one of claims 1 to 3 , wherein the driving driver pulse-drives an LED that is a light source of the direction indicator light.

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