Improved energy-saving starter with one-key starting function and control method

Abstract

The invention provides an improved energy-saving starter with a one-key starting function and a control method. The improved energy-saving starter is characterized by comprising a starting switch module, a composite relay module, a starting module and a reset module, wherein the starting switch module comprises a starting switch, a contactor and a timing switch; the composite relay module is composed of a first relay and a second relay; the starting module comprises a permanent magnet, a reset spring, a main binding post, a contact disc, a movable iron core, a pull-in coil, a direct-current motor, a brass sleeve and a shifting fork mechanism; and the reset module comprises a return coil. The problem of energy consumption of a retaining coil in the prior art is solved, and the problems of unsuccessful starting, thorough power shortage of a storage battery and the like caused by unreasonable contact time of the direct-current motor and a flywheel are solved.

Description

technical field [0001] The invention belongs to the fields of vehicle engineering and electrical equipment, and in particular relates to an improved energy-saving starter with a one-button start function and a control method. Background technique [0002] At present, the commonly used starter control system circuits of engineering vehicles (automobiles) include: key switch direct control type, starting type with relay and starting type with composite relay, etc. [0003] There are following shortcomings in these schemes: [0004] In the starting process of the key switch direct control type, since the current passing through the key switch and the electromagnetic switch is generally above 35A or higher, the working current is too large, which makes the more delicate key switch easy to burn out; [0005] The starting type with relay adopts the principle of relay to control the electromagnetic switch of the starter, avoiding the large current passing through the key switch du...

AI Technical Summary

Problems solved by technology

[0004] In the starting process of the key switch direct control type, since the current passing through the key switch and the electromagnetic switch is generally above 35A or higher, the working current is too large, which makes the more delicate key switch easy to burn out;

[0005] The starting type with relay adopts the principle of relay to control the electromagnetic switch of the starter, avoiding the large current passing through the key switch during starting, making the current through the key switch controllable and improving the working environment of the key switch, but it cannot prevent the secondary The collision between the starter gear and the flywheel ring gear caused by repeated starting occurs;

[0006] With compound relay starting type, the generator neutral point voltage is introduced into the compound relay control method to solve the above problem, but it lacks self-locking function, that is, it may fail to start normally due to insufficient starting contact time;

[0007] At the same time, the common disadvantage of the above three methods is: during the starting process, the holding coil is used to keep the movable iron core to attract the contact plate to short-circuit the suction and pull coil, so that the DC motor can start and run at high speed. However, the holding coil is connected in parallel with the DC motor. On the vehicle battery, the resistance value of the coil is kept very small (about twice the resistance of the DC motor), and about 1 / 3 of the battery current is diverted, which makes the limited-capacity battery lose power and reduces the starter by about 1 / 3. The electromagnetic starting torque of 3 reduces the starting performance, so in practical applications, it is necessary to increase the size of the mechanical equipment of the starter or cooperate with the gear reduction device to increase the starting torque of the starter, which increases the cost of the engineering vehicle. It is also easy to fail to start again due to power loss

"The scheme partially solves the problems existing in the prior art, but its own design scheme also has some inherent defects and needs to be improved. For example, it is difficult to control the opening time of the start switch. If the start switch is stuck, it will Cause problems such as malfunction of the entire device

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