JPH019060Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automobile door key switch system, and in particular, when the door key is inserted into the door lock cylinder, the necessary electrical load is applied to the ignition switch in addition to unlocking and locking the door. This invention relates to a door key switch system that is electrically connected so that it can be operated in the same way as when it is inserted.

Until now, there has never been a vehicle in which the necessary electrical loads such as power windows, window wipers, electric sunroofs, etc. can be operated simply by operating the door key in the same way as when inserting an ignition switch. If you get out of the car and try to lock the door, or afterwards, if you notice that the window or sunroof is left open or the wipers are stuck in the middle, try locking the door again. It was a hassle to open it, put in the ignition key, and then have to operate the necessary electrical loads.

In view of this problem, the present invention connects a door key switch, which is turned on when a door key is inserted into a door lock cylinder, in parallel to an ignition switch connected in series to a power supply, and also connects an ignition switch connected in series to a power supply. When the door key switch is turned on, the operating switch and the electrical load are connected in series and power is supplied from the power supply to the load group in which multiple load circuits are connected in parallel. An object of the present invention is to provide a door key switch system which can bring a load group into a state equivalent to when an ignition switch is turned on by turning on the ignition switch.

The present invention will be explained in detail below based on illustrated embodiments. FIG. 1 shows an example of the mechanism of a door key switch, in which a door key 4 is attached to a door lock cylinder 3 in a cylinder case 2 attached to a door panel 1.
When the key 4 is inserted, the tip of the key 4 pushes the slide rod 5 inside the cylinder 3, and the movement of the rod 5 pushes the operating rod 6a of the limit switch 6 that constitutes the door key switch, turning it on. Incidentally, by turning the key 4, the link portion 7 engaged with the cylinder 2 performs a conventional door locking/unlocking movement. Conversely, when the door key 4 is removed, the rod 5 is returned so as to partially protrude into the cylinder 3 due to the elastic return force of the operating rod 6a of the limit switch 6.

FIG. 2 shows another example of the door key switch mechanism. In this embodiment, when the door key 4 is inserted into the cylinder 3, the operating rod 6a of the limit switch 6, which is attached to the side of the cylinder case 2, is directly pushed by the tip of the key 4, turning the switch 6 on. ing. When the key 4 is removed, the spring 6b expands and pushes the operating rod 6a, returning the tip to a state in which it partially protrudes into the cylinder 3.

A door key switch with such a configuration is
The circuit configuration is as shown in FIGS. 3 to 5. In the example shown in Fig. 3, the door key switch SW ₂ of the present invention is installed in parallel with the conventional ignition switch SW ₁ .
This is an example in which electrical loads L ₁ , L ₂ , such as windshield wipers, power windows, and sunroofs are connected.
L ₃ and their load operating switches S ₁ , S ₂ , S ₃
The door key switch SW ₂ is connected in series with the . Vb is a battery power supply. However, if you forget to close the window or sunroof after turning off the ignition switch SW ₁ , getting out of the car, and locking the doors, or discovering that the wipers have stopped halfway, insert the key into the lock cylinder of the door. When the door is opened, the operation switches S ₁ , S ₂ , S ₃
The necessary loads L ₁ , L ₂ , L ₃ , etc. can be moved by operating the above.

FIG. 4 shows another circuit example. In this example, the relay switch for ignition relay Re
RSW has operation switches S ₁ , S ₂ , S ₃ and loads L ₁ , L ₂ ,
L ₃ is connected, and door key switch SW ₂ is connected in parallel to ignition switch SW ₁ .
When ignition switch SW ₁ or door key switch SW ₂ is turned on, relay Re is activated to close relay contact RSW, making it possible to operate the required load.

Figure 5 shows part of the load that can be operated when ignition switch SW ₁ is turned on.
This is an example of a circuit that can be operated equivalently even when SW ₂ is on. i.e. ignition switch
SW ₁ has a load LD that is directly driven when ignition switch SW ₁ is turned on, such as an ignition coil, and a load LD that is directly driven when ignition switch SW 1 is turned on, such as an ignition coil, and an ignition switch such as a wiper, turn, sunroof, power window, etc.
Even if SW ₁ is turned on, there are other operation switches S ₁ , S ₂ , S ₃
Loads L ₁ , L ₂ , L ₃ that cannot be driven unless the
are connected in parallel, and the door key switch
SW ₂ is connected to power supply Vb in series with relay Re. The switch RSW of the relay Re is normally located at the contact point on the ignition switch SW ₁ side, and when the door key switch SW ₂ is turned on and energizes the relay Re, it switches to the b contact side and activates the ignition switch.
The operation switch S ₁ is equivalent to when SW ₁ is turned on.
Only the loads L ₁ , L ₂ , and L ₃ driven by S ₂ and S ₃ are made operable. By doing this, unnecessary load is not driven by operating the door key switch SW ₂ , and consumption of the battery Vb can be suppressed.

As described above, the present invention is equipped with a door key switch that is set to a state equivalent to the on state of the ignition switch, and is switched by inserting the key into the door lock cylinder, so that the door can be locked after exiting the vehicle. If you realize that you forgot to close the power windows or electric sunroof when you open the car or after locking the car, you don't have to open the door, insert the key, and turn on the ignition switch.
It has the advantage of being able to operate the necessary load while the key is inserted in the door.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a door lock cylinder portion according to one embodiment of the present invention, Fig. 2 is a sectional view of another embodiment of the door lock cylinder portion, and Figs. 3 to 5 are respective embodiments of the present invention. It is a circuit diagram. SW ₁ ...Ignition switch, SW ₂ ...Door key switch, _L1 , _L2 , _L3 ...Electrical load,
S ₁ , S ₂ , S ₃ ...operation switches.

Claims (1)

[Scope of utility model registration request] an ignition switch connected in series to a power source; a door key switch connected in parallel to the ignition switch and turned on when a door key is inserted into a door lock cylinder;
A plurality of load circuits each having an operation switch and an electrical load connected in series are connected in parallel, and when the ignition switch or the door key switch is turned on, power is supplied from the power supply. Features a door key switch system.