JPS6122133B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an automatic warm-up device for an automobile.

Prior Art Generally, in order to run a car smoothly in winter or in a cold region, it is necessary to warm up the engine to the normal operating temperature before driving.

Conventionally, the above-mentioned warm-up operation required the driver to enter the driver's seat and perform the warm-up operation for a predetermined period of time when the vehicle was started, which caused the inconvenience that the vehicle could not be started immediately.

OBJECTS OF THE INVENTION The present invention aims to provide a device that automatically performs the warm-up operation at a preset time to facilitate operation for the driver.

Composition of the Invention This invention is installed in the middle of a table wire connecting a chiyoke valve and a chiyoke knob that are always pulled in the opening direction by a spring or the like, and when the chiyoke valve is in an open position, it is directly connected to the chiyoke knob, and when the chiyoke valve is in a closed position, the chiyoke knob is in a state of direct connection. A cup cylinder that does not interfere with the engine and is held in place by a stopper in the closed position, and a first bimetal timer that intermittently opens and closes a starter power source for starting the engine when the start time setting timer times out. , detects a predetermined rotational speed of the engine and
an engine rotation detection relay that cuts off power to the bimetal timer and supplies power to the second bimetal timer to set a predetermined warm-up time; The present invention is characterized in that it includes a solenoid that releases the stopper from the stopper in order to move the check valve set at the closed position to the fully open position.

Embodiment FIG. 1 shows the basic electrical circuit of the device of the present invention, where 1 is a main switch and 2 is a timer for setting the starting time. 3 is a relay contact of a relay that detects the engine's output rotation speed and operates.It is normally connected to contact 3a, and when the engine output rotation speed reaches a predetermined rotation speed, contact 3b is connected.
connected to the side. A first bimetal timer 4 is opened at predetermined intervals during operation, and repeats the operation of starting the starter 5 for, for example, 3 seconds and stopping it for 6 seconds. 6 is a second bimetal timer connected to contact 3b, which starts operating when electricity is supplied from contact 3b, and operates for a set time (5 to 10
quantile), contact 6a is turned on and solenoid 7 is energized and excited. The first bimetal timer 4 is configured as shown in FIG. That is,
In Figure 3, terminal 4a is connected to the power supply side, terminal 4b
are connected to the starter 5 side, and the center of an upwardly curved spring plate 4d is fixed on the terminal 4b via the fulcrum 4c.
Normally, one end of the terminal 4a and one end of the terminal 4a are connected to the contacts 4e, 4.
f are brought into contact with each other, the other end of the spring plate 4d is pressed into contact with the bolt 4h at the tip of the bimetal 4g, and the heating coil 4i is wound around the bimetal 4g. When energized, the contacts 4e and 4f are connected from the terminal 4a.
One is from the spring plate 4d to the bolt 4h.
to the bimetal 4g heating coil 4i, and the other one is from the spring plate 4d to the fulcrum 4c and the terminal 4.
so that it is supplied to the starter 5 via b,
After a predetermined period of time (for example, 3 seconds) has passed after energization,
By bending the bimetal 4g downward and bending the spring plate 4d to the reverse side through the bolt 4h, contact 4 is formed.
e and 4f are turned off to cut off the power to the heating coil 4i and starter 5, and after a predetermined period of time (for example, 6 seconds), the bimetal 4g is restored and the spring plate 4d is restored, and the contacts 4e and 4f are brought into contact again. , this operation is repeated.

Regarding the second bimetal timer 6, although not shown, the contact point is normally open, and when the engine speed detection relay 3 switches to the contact point 3b side, the bimetal heating coil 6b is continuously energized, and after a set time, the bimetal is configured to bend and continue to close contact 6a.

Fig. 2 shows the relationship between the check valve 8 and the check knob 9. It is designed to be able to move forward and backward at all times using a spring (not shown) or the like. In FIG. 2, 12 is a coupling, and this coupling 12 is provided midway between cable wires 13 and 14.
That is, one end of one cable wire 13 is connected to the yoke valve 8, and the other end is connected to the coupling 1.
It is connected to one end of 2. One end of the other cable wire 14 is connected to the tie yoke knob 9, and the other end is inserted into the other end of the coupling ring 12 as follows. That is, the coupling 12 and the coupling knob 9 are directly connected when the coupling valve 8 is in the fully open position, and the coupling knob 9 and the coupling 12 do not interfere with each other when the coupling valve 8 is in the closed position. And coupling 12
has a locking portion 12a on a part thereof, and a stopper 15 correspondingly locks to the locking portion 12a of the coupling 12 when the valve 8 is in the closed position to lock and hold the coupling 12 in that position.
is provided. This stopper 15 functions to release the coupling 12 and return the choke valve 8 to the fully open position when the solenoid 7 shown in FIG. 1 is energized.

Next, the operation procedure will be explained.

First, close the main switch 1, set the start time setting timer 2 to the desired time, and pull the check knob 9. The state changes from a to b in Fig. 2, the coupling 12 is pulled, and at the same time the check valve 8 is turned on. In the closed position, the stopper 15 is locked to the locking portion 12a, and the coupling 12 is stopped and held in the state shown in FIG. 2b. Therefore, even if you pull the check knob 9 once and then release it, the check valve 8 will not close to the stopper 15 and the coupling 12.
It is held in the closed position by the locking of the yoke knob 9.
The chisel moves back and forth as shown in Figure 2c.

Thereafter, the above state is maintained until the solenoid 7 is energized.

When the time set in the starting time setting timer 2 is reached, the timer 2 is turned on, energizing the ignition 16 and starter 5, and starting the engine with the check valve 8 closed. Ru. At this time, a rich air-fuel mixture is supplied to the engine, and the first bimetal timer 4 causes the starter 5 to repeat the ON-OFF operation until the engine speed reaches a predetermined rotation speed. When the predetermined rotation speed is reached, the rotation speed detection relay 3 is activated and the contact point 3b is activated.
switch to the side. As a result, the second bimetal timer 6 starts operating. However, this second bimetal timer 6 is for setting the warm-up operation time, and the contact 6a is not activated until the predetermined set time elapses after the energization is started as described above.
Since I will not turn on the
is intermittently maintained in the closed position, and the engine continues to warm up on its own without assistance from the starter 15. Then, when the set time of the second bimetal timer 6 has elapsed, the contact 6a closes and the solenoid 7 is energized, and the stopper 15 releases the coupling 12, so the check valve 8 is returned to the fully open position and the warm-up operation is completed. death,
The engine operation system returns to the state shown in FIG. 2a, and the engine continues to operate in an idling state, waiting for the driver to board the vehicle.

Therefore, the driver can get into the car after the warm-up operation has been completed, and the driver does not have to perform the warm-up operation himself before starting the vehicle.

Effects of the Invention As explained above, this invention has a coupling that is installed in the middle of the cable wire connecting the check valve and the check knob, and is held in place by a stopper in the closed position of the check valve, and a timer for setting the start time that starts the engine. A first bimetal timer that intermittently opens and closes a starter power source for starting the engine; and a first bimetal timer that detects a predetermined rotational speed of the engine and cuts off power to the first bimetal timer, and also for a predetermined warm-up operation time. The engine rotation detecting relay energizes the second bimetal timer to set the timing, and the stop valve, which was previously set to the closed position by the stopper via the coupling ring, is moved to the fully open position due to the timeout of the second bimetal timer. Since the vehicle is equipped with a solenoid for releasing the locking by the stopper, the warm-up operation can be automatically performed at any time, and the operational convenience for the driver is significantly improved.

[Brief explanation of the drawing]

FIG. 1 is an electrical circuit diagram of the device according to the invention, FIG.
The figure is an explanatory diagram of the operation sequence of a chiyoke operation system to which the same device is applied, and FIG. 3 is an example of a bimetal timer. 1... Main switch, 2... Timer for setting start time, 3... Engine speed detection relay, 4
...First bimetal timer, 5...Starter, 6...Second bimetal timer, 7...Solenoid, 8...Chiyoke valve, 9...Chiyoke knob, 10...Intake pipe, 11...Instrument panel, 12
... Coupling, 13, 14 ... Cable wire, 15 ... Stopper, 12a ... Locking part,
16...Ignition.

Claims (1)

[Claims] 1 A coupling is installed in the middle of the cable wire that connects the check valve and the check knob, and is held in place by a stopper when the check valve is in the closed position, and the starter power is intermittently supplied to start the engine when the start time setting timer times out. A first bimetal timer that opens and closes according to
cut off the power to the bimetal timer, and
An engine rotation detection relay that energizes a second bimetallic timer that sets a predetermined warm-up time, and a stopper that has previously been set to the closed position via a coupling ring by a stopper when the second bimetallic timer times out is set to the fully open position. 1. An automatic warm-up operation device for an automobile, comprising a solenoid for releasing the locking by the stopper in order to cause the vehicle to shift to .