阅读说明：本技术 一种起动机开关 (Starter switch ) 是由 周新沙 于 2020-04-26 设计创作，主要内容包括：本发明涉及一种起动机开关,包括点火开关及与点火开关相连接的起动机,起动机包括吸合线圈、保持线圈、动触片、第一静触点、第二静触点及与吸合线圈相连接的电机,点火开关、第一静触点均与电源连接,第二静触点与吸合线圈连接,动触片连接有复位弹簧,吸合线圈的匝数多于保持线圈的匝数。本申请的起动机开关,通过减少保持线圈的匝数,使得吸引线圈与保持线圈匝数不相等,在开关断电时,流经两组线圈的电流一致,方向相反,电磁力不能完全抵消,剩余电磁力作用方向与复位弹簧的回位收缩方向一致,加快复位弹簧回位,提高了开关触点的断电速度,由原来的约10ms加快为约6ms。(The invention relates to a starter switch, which comprises an ignition switch and a starter connected with the ignition switch, wherein the starter comprises an attraction coil, a holding coil, a movable contact piece, a first fixed contact, a second fixed contact and a motor connected with the attraction coil, the ignition switch and the first fixed contact are both connected with a power supply, the second fixed contact is connected with the attraction coil, the movable contact piece is connected with a reset spring, and the number of turns of the attraction coil is more than that of the holding coil. The utility model provides a starter switch, through reducing the number of turns of holding coil for attract coil and holding coil number of turns inequality, when the switch outage, the electric current of two sets of coils of flowing through is unanimous, and opposite direction, electromagnetic force can not offset completely, and residual electromagnetic force acts on the direction unanimous with reset spring's return shrink direction, accelerates reset spring return, has improved the outage speed of switch contact, accelerates to be about 6ms by original about 10 ms.)

1. A starter switch comprises an ignition switch (1) and a starter (2) connected with the ignition switch (1), wherein the starter (2) comprises an attraction coil (3), a holding coil (4), a movable contact piece (5), a first fixed contact (6), a second fixed contact (7) and a motor (8) connected with the attraction coil (3), the ignition switch (1) and the first fixed contact (6) are both connected with a power supply (9), the second fixed contact (7) is connected with the attraction coil (3), the movable contact piece (5) is connected with a reset spring (11), and the starter switch is characterized in that the number of turns of the attraction coil (3) is more than that of the holding coil (4).

2. Starter switch according to claim 1, characterized in that the power source (9) is a battery.

3. Starter switch according to claim 2, characterized in that the battery switch (10) of the normally closed type of the first stationary contact (6) is connected to a battery.

Technical Field

The invention relates to the technical field of starters, in particular to a starter switch.

Background

The existing starter switch generally comprises an attraction coil and a holding coil, the two groups of coils are different in wire diameter and same in turn number, when the switch is powered off, the two groups of coils are consistent in current, consistent in turn number and opposite in direction, a movable iron core is reset under the action of a reset spring under the condition that electromagnetic force disappears, the power-off time is about 10ms, the power-off speed is slow, and the starter cannot stop working immediately.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a starter switch, which solves the technical problems that the existing automobile starter switch is slow in power-off speed, and a starter cannot stop working immediately.

The invention is realized by the following technical scheme:

a starter switch comprises an ignition switch and a starter connected with the ignition switch, wherein the starter comprises an attraction coil, a holding coil, a movable contact piece, a first fixed contact, a second fixed contact and a motor connected with the attraction coil, the ignition switch and the first fixed contact are both connected with a power supply, the second fixed contact is connected with the attraction coil, the movable contact piece is connected with a reset spring, and the number of turns of the attraction coil is more than that of the holding coil.

Further, the power supply is a storage battery.

Further, the battery switch of the first stationary contact constantly closed type is connected to the battery.

Compared with the prior art, the invention has the beneficial effects that:

according to the starter switch provided by the invention, the number of turns of the holding coil is reduced, so that the number of turns of the attraction coil is more than that of the holding coil, when the switch is powered off, the currents flowing through the two groups of coils are consistent and opposite in direction, because the number of turns of the attraction coil is large, the electromagnetic force generated by the attraction coil is large, the magnetic force of the two groups of coils cannot be completely offset, the acting direction of the remaining electromagnetic force is consistent with the return direction of the return spring, the return of the return spring is accelerated, the power-off speed of the switch contact is improved, and the original speed is accelerated to about 6ms from about 10.

Drawings

FIG. 1 is an electrical schematic diagram of a starter switch according to an embodiment of the present invention;

FIG. 2 is an electrical schematic diagram of a starter switch according to an embodiment of the present invention when engaged;

FIG. 3 is an electrical schematic diagram of a starter switch according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a starter switch according to an embodiment of the present invention.

In the figure:

1. an ignition switch; 2. a starter; 3. attracting a coil; 4. a holding coil; 5. a movable contact spring; 6. a first stationary contact; 7. a second stationary contact; 8. a motor; 9. a power source; 10. a battery switch; 11. a return spring; i (a) represents the current flowing through the pull-in coil, and the arrow represents the current direction; i (b) represents the current flowing through the holding coil, and the arrow represents the current direction; i (0) represents the main current applied to the motor and the arrows represent the direction of the current.

Detailed Description

The following examples are presented to illustrate certain embodiments of the invention in particular and should not be construed as limiting the scope of the invention. The present disclosure may be modified from materials, methods, and reaction conditions at the same time, and all such modifications are intended to be within the spirit and scope of the present invention.

As shown in fig. 1-4, the starter switch of the present application includes an ignition switch 1 and a starter 2 connected to the ignition switch 1, where the starter 2 includes an attraction coil 3, a holding coil 4, a movable contact 5, a first stationary contact 6, a second stationary contact 7, and a motor 8 connected to the attraction coil 3, the ignition switch 1 is connected to a power supply 9, the power supply 9 is a storage battery, and a storage battery switch 10 of a normally closed type of the first stationary contact 6 is also connected to the storage battery; the second fixed contact 7 is connected with the pull-in coil 3, the movable contact 5 is connected with a return spring 11, and the number of turns of the pull-in coil 3 is more than that of the holding coil 4.

The specific working process is as follows:

closing the ignition switch 1, enabling the attraction coil 3 and the holding coil 4 to work simultaneously, enabling a current I (a) flowing through the attraction coil 3 and a current I (b) flowing through the holding coil 4 to be in the same direction, enabling the I (0) to be 0, enabling the movable contact 5 to be connected with the first fixed contact 6 and the second fixed contact 7 in a right-moving mode, enabling the main loop to be connected, enabling voltages at the head end and the tail end of the attraction coil 3 to be the same, enabling the attraction coil 3 to be short-circuited, enabling the current I (a) flowing through the attraction coil 3 to be 0, enabling the current I (0) to enter a motor 8 of a starter, enabling a reset spring 11 to be in a stretching state under the state, and enabling the current of a;

the ignition switch 1 is switched off, the current of the power supply 9 enters the attraction coil 3 from the switch contact and then enters the holding coil 4, at the moment, the attraction coil 3 and the holding coil 4 are connected in series, the I (a) and the I (b) have the same magnitude and opposite directions, the current of the switch coil is indicated as shown in figure 3, because the number of turns of the attraction coil 3 is more than that of the holding coil 4, the electromagnetic force generated by the attraction coil 3 is more than that of the holding coil 4, the electromagnetic force of the two groups of coils cannot be completely counteracted, the action direction of the residual electromagnetic force is consistent with the return direction of the return spring 11, the residual electromagnetic force acts on the return spring 11 together, the return of the return spring 11 is accelerated, further, the power-off speed of the switch contact is improved, and the original speed of.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.