JPH0618068Y2 - Engine starter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improvement of an engine starting device, and more particularly to an engine starting device capable of controlling a preheating circuit thereof.

(Prior Art) Generally, if the engine is cold in a cold region, it is difficult to start the engine, and thus it is required to preheat the engine. For this reason, the engine starting device used in such an area is provided with a preheating circuit which is connected to the preheating contact of the starting switch to preheat the engine. In this case, the starting contact of the starting switch may not be able to be closed without passing through the preheating contact. In this case, the preheating circuit is activated immediately after the preheating contact is closed to facilitate the preheating operation of the driver. As a result, the preheating circuit is always driven even when preheating is not required.

(Object of the Invention) An object of the present invention is to provide an engine starting device that prevents the preheating circuit from being driven even when the preheating contact is closed when preheating is not required.

(Structure of the Invention) An engine starter according to the present invention is a starter switch having at least an off contact, a preheat contact, and a start contact, in which the preheat contact and the start contact are arranged in the order of operation direction of the movable contact from the off contact. And a preheating circuit including a relay connected to the preheating contact and excited through the preheating contact and a heater energized by the excitation of the relay, and the preheating between the preheating contact of the starting switch and the relay. It is characterized by having a preheat control circuit that excites the relay when the contact remains closed for a predetermined time or longer.

With this configuration, when preheating is required, the preheating circuit can be driven by slowly turning the start switch and keeping the preheating contact closed for a predetermined time. When preheating is not needed, the preheating contact can be quickly opened. By passing, it is possible to avoid driving the preheating circuit.

(Embodiment) An embodiment of the present invention will be described in detail with reference to the drawings. The drawing shows an engine starting device 10 according to the present invention. The engine starting device 10 includes an OFF contact 12A and an accessory contact 12B. Normal on contact 12C and preheat contact 12D
And a starting switch 12 having a starting contact 12E and a preheating circuit 14 connected to the preheating contact 12D of the starting switch 12 for preheating the engine. The starting switch 12 includes an off contact 12A, an accessory contact 12B, an on contact 12C, a preheating contact 12D, and a starting contact 12E.
D and the starting contact 12E are arranged. Therefore, when the movable contact 13 is rotated in the operating direction, the engine cannot be started unless it passes through the preheating contact 12D, and the preheating contact 12D and the starting contact 12E are not closed at the same time. The preheating contact 14 is connected to the preheating contact 12D and is excited by the preheating contact 12D.
8A and a relay 18 including a relay contact 18B that is closed by excitation of the relay coil 18A;
6 is connected via the relay contact 18B to the relay 18
And a heater 20 which is energized by the excitation of.

The engine starting device 10 of the present invention includes a starting switch 12
Preheat contact 12D and relay coil 18A of preheat circuit 14
And a preheat control circuit 22 for driving the preheat circuit 14 when the preheat contact 12D is continuously closed for a predetermined time, for example, 2 seconds or more. The preheat control circuit 22 includes a timer, for example, and is configured not to energize the relay 18 unless the preheat contact 12D remains closed for a predetermined time.

Therefore, when the driver needs to preheat the engine when turning the start switch 12, the preheat control circuit 22 energizes the relay 18 by operating the start switch 12 so as to close the preheat contact 12D for a predetermined time. Can be energized. Further, when it is not necessary to preheat the engine, the preheat control circuit 2 is operated even if the preheat contact 12D is temporarily closed by operating the start switch 12 quickly.
2 does not energize the relay 18, so the preheating circuit 14
Is never driven.

(Effect of the Invention) According to the present invention, as described above, when preheating is not required, the preheating circuit is not driven even if the preheating contact is closed by operating the start switch quickly, so that the battery is wasted. There is a real benefit that can prevent consumption.

[Brief description of drawings]

The drawing is a cross-sectional view of an engine starting switch according to the present invention. 10 ... Engine starter, 12 ... Start switch,
12D ... preheating contact, 12E ... starting contact, 14 ... preheating circuit, 22 ... preheating control circuit.

Claims (1)

[Scope of utility model registration request] 1. A starting switch having at least an off contact, a preheating contact, and a starting contact, in which the preheating contact and the starting contact are arranged in this order from the off contact to the operating direction of the movable contact.
In a starting device for an engine, which is connected to the preheating contact and is excited from the preheating contact, and a preheating circuit including a heater energized by the excitation of the relay, a preheating contact of the starting switch and the relay An engine starting device comprising a preheating control circuit for exciting the relay when the preheating contact is continuously closed for a predetermined time or more.