JPS62103937A - Changeover apparatus of electric system circuit for vehicle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a switching device for a vehicle electrical circuit, and particularly to a switching device for a circuit that does not require frequent switching.

(Prior Art) Some electrical circuits for vehicles require switching only once or twice a year. For example, Utility Model No. 55-3222
In the concealed wiper structure disclosed in No. 4, the wiper stop position is changed in summer and winter so that the wiper is not concealed in winter and is in a rice-up state in order to prevent the wiper from freezing. There is also a timing belt replacement warning light switching circuit, which automatically switches after thousands of kilometers and lights up a warning light to notify you that it is time to replace the belt, but the former When the time comes for the wiper stop position to change, and for the latter when the warning light lights up, the circuits are manually switched, and the switched circuits then perform the specified function again. It is made to be.

Conventionally, the above switching operation has been performed by disconnecting the single-pole male coupler and single-pole female coupler connected to the cord and connecting one of them to another single-pole male coupler or single-pole female coupler. a pair of one in the state
Regardless of the polar male coupler and the single-pole female coupler, the remaining idle single-pole male (female) couplers are not in a locked state, so there is a problem in that they hit the vehicle body and generate a banging sound when the vehicle is photographed. As a countermeasure for this problem, applying soundproofing treatment will cause an increase in cost, and using a changeover switch instead of replacing the coupler as described above is not recommended considering that the changeover operation is only performed once or twice a year. This is extremely wasteful and causes further cost increases.

Furthermore, since the coupled couplers are not fixed to the vehicle body, contact failure is likely to occur when external forces are applied to the couplers, such as when photographing the vehicle.

(Purpose of the Invention) The present invention has been made in view of the above circumstances, and provides a switching method for electrical circuits for vehicles that has a simple structure that is inexpensive and does not cause knocking noise or poor contact when photographing the vehicle. The purpose is to provide a device.

(Structure of the Invention) A switching device for a vehicle electrical circuit according to the present invention includes a three-pole coupler provided in a fuse box, and a conductive member that selectively conducts electricity between two of the three-pole coupler. It is characterized by this.

The conductive member may be formed into substantially the same shape as an autofuse, for example, in order to facilitate circuit switching, but is not particularly limited thereto.

(Example) An example of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a switching device for a vehicle electrical circuit according to this embodiment.

A plurality of two-pole couplers 2 are arranged within the fuse box 1, and auto fuses 3 are connected as appropriate. Further, in the fuse box 1, a three-pole coupler 4 is arranged in parallel with these two-pole couplers 2. Multi-pole 4a, 4b of 3-pole coupler 4.

4C are arranged on the same straight line, and the distance between the two adjacent poles is smaller than the distance between the two poles of the two-pole coupler 2, which causes the auto fuse 3 to be connected incorrectly. It seems like it never happens. In the three-pole coupler 4, a shorter 5 having conductivity between a pair of terminals 5a and Sb is connected to the two-pole coupler 4a and 4b or 4b.
and 4c, so as to conduct electricity between the two connected electrodes. The shorter 5 is formed to have the same head cross-sectional shape as the auto fuse 3, and as shown in FIG. can be easily attached and detached.

3 to 6 are diagrams showing examples in which the above switching device is applied to a summer/winter switching device for a rise-up wiper.

As shown in FIG. 3, the rise-up wiper 7 has a
It has a structure that can take three modes: RUN), B (PAUSE), and C (PARK). That is, in the winter, when the wiper 7 is in the operating state, it rotates as shown in A, and when it is not in the operating state, it is stationary at the position B, and in the summer, when it is in the operating state, it rotates as shown in the position B. As in the winter, it rotates as shown in A, and when it is inactive, it is stored in position C below the bonnet 8, which is roughly one step lower than position B, and remains stationary. As described above, in order to prevent the wiper from freezing in the winter, the static position of the wiper 7 is changed between summer and winter, and the summer/winter switching device is used to change the position. This summer/winter switching device is normally switched twice a year.

In Figure 4, the rise-up wiper 7 is set to A (RIJN) above.
The wiper drive circuit is shown when the wiper is in the state.

In the figure, the interlocking changeover switch 9 shown at the upper center is set to "L", for example.
When the wiper drive motor 11 is turned on, power is supplied from the power supply 10 to the wiper drive motor 11, and the wiper 7 (see FIG. 3) is operated. At this time, since the summer/winter switching device 12 shown at the lower right in the figure is not energized, the wiper 7 is driven in the same way regardless of summer or winter. Note that the summer "S" and winter "rW" of the summer/winter switching device 12 are
To switch J, connect a pair of terminals 5a, 5b of shorter 5 shown in FIG.
This can be easily done by performing a replacement operation between a and 4b.

FIG. 5 shows that the rise-up wiper 7 is
) shows the wiper drive circuit in the state.

When the interlocking changeover switch 9 is set to rOFFJ and the summer/winter switching device 12 is set to winter rWJ, the power supply 10
Since no power is supplied to the wiper drive motor 11 from the wiper drive motor 11, the wiper 7 does not operate and remains stationary at the position B described above.

Figure 6 shows that the rise-up wiper 7 is at the above C (PARK).
The wiper drive circuit is shown in the state shown in FIG.

When the summer/winter switching device 12 is set to summer “S”,
Even when the interlocking changeover switch 9 is turned to rOFFJ, power is supplied from the power supply 10 to the wiper drive motor 11. However, the direction of the current is opposite to that in the case of FIG. 4, and therefore the wiper drive motor 11 is rotated in the reverse direction.

When the wiper drive motor 11 reverses, the wiper is moved down one step from the above position B and is stored at the above position C. At this point, the interlocking switch 13 shown at the lower left in the figure is automatically switched to the position shown by the broken line, and the wiper drive motor 11 is stopped.

As described above, the switching device for a vehicle N-equipped circuit according to this embodiment can switch the circuit with the same ease as attaching and detaching the auto fuse 3, and furthermore, the shorter 5 is a three-pole coupler. 4, handling does not deteriorate easily and high reliability can be ensured. The three-pole coupler 4 may be mounted inside the fuse box 1 as shown in FIG. 1, or may be mounted on the outer surface of the fuse box 1, such as a side wall. Further, the switching device according to this embodiment can be applied not only to a rise-up wiper but also to a timing belt replacement time warning light switching circuit and other circuits that do not require frequent switching operations.

(Effects of the Invention) As detailed above, the switching device for a vehicle electrical circuit according to the present invention selectively switches between a three-pole coupler provided in a fuse box and two of the three-pole couplers. Because it consists of a conductive member that conducts electricity, it can be easily and extremely compactly formed, and even general users can easily perform switching operations. Furthermore, couplers connected to conventional cords can be It is possible to eliminate the knocking noise caused by poor contact and loose couplers that tend to occur in the connecting structure.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of a switching device for a vehicle electrical circuit according to the present invention, FIG. 2 is a perspective view showing how the conductive member of the switching device is handled, and FIG. 3 is a perspective view to which the switching device can be applied. FIGS. 4, 5, and 6 are diagrams of a rise-up wiper drive circuit in which the switching device is incorporated. 1...Fuse box 4...3-pole coupler 5.
··short bar

Claims (1)

[Claims] A switching device for a vehicle electrical circuit, comprising a three-pole coupler provided in a fuse box, and a conductive member that selectively conducts electricity to two of the three-pole coupler.