KR100616734B1 - Electromagnetic starter switch - Google Patents

Abstract

assignment

The coil manufacturing time is shortened, and damage caused by wear of the wire is reduced.

Resolution

In the electronic switch for starter according to the present invention, a switch case coupled at one side opening of the solenoid case, a fixed iron core composed of a pair of fixed contacts fixed in the switch case, a tube portion and a flange portion 9a, and the fixed iron core A movable iron core that folds in relation to the coil, a coil that moves the movable iron core in a direction in contact with the fixed iron core by being excited, a rod that moves together with the movable iron core, and the reciprocating movement of the rod A movable contact which is folded to a fixed contact and electrically connects to and disconnects between the fixed contacts, and an outer periphery of the flange portion 9a has rescue lines 33a, 33b, 34a, 34b of the coil. Notches 32a and 32b are formed to guide the outside to the outside.

Starter, switch

Description

Electronic switch for starter {ELECTROMAGNETIC STARTER SWITCH}

1 is a cross-sectional view showing an electronic switch for starter according to Embodiment 1 of the present invention.

FIG. 2 is a front view of the fixing iron core in a state where the bobbin is in contact with the flange portion of the fixing iron core of FIG. 1. FIG.

3 is a front view of the plate of FIG.

4 is a view when the plate is seen from the left side of FIG. 1 in a state before fixing the switch case to the solenoid case of FIG. 1; FIG.

♠ Explanation of symbols on the main parts of the drawings.

1: Solenoid Case 1a: Caulking Part

2: switch case 3, 4: fixed contact

7: bobbin 8: coil

9: fixed iron core 1O: movable iron core

11: Gary Spring 12: Rod

15: movable contact 3O: plate

32a: first notch 32b: second notch

33a, 33b, 34a, 34b: rescue line 37a: first hole for rescue line

37b: hole for the second rescue ship

Technical field

The present invention relates to an electronic switch for a starter for turning on and off the electricity to the starter motor.

Background technology

Conventionally, a solenoid case, a switch case coupled at one side opening of the solenoid case, a pair of fixed contacts fixed to each other at intervals in the switch case, and provided in the solenoid case, ) And a fixed iron core composed of a flange portion extending in a radially outward direction from an end of the tube portion, a movable iron core capable of reciprocating in a direction foldable with respect to the fixed iron core, and from the fixed iron core. 개) a gripping spring for adding the movable iron core in a direction to be moved, and a bobbin provided on the outside of the tube portion and the movable iron core of the fixed iron core, and the direction of contact with the fixed iron core against the ridge spring by being excited. A coil for moving the movable iron core to the rod, a rod moving together with the movable iron core, and a semi-moving of the rod ( An electronic switch for a starter, which is provided on the iron core side and has a movable contact which is folded to the fixed contact by the reciprocating movement of the rod and electrically connects and blocks the fixed contact, is known (for example, See Patent Document 1).

[Patent Document 1]

Japanese Patent Laid-Open No. 2001-2O2862 (FIG. 1)

In the starter electronic switch, although the hole for the rescue line is formed in the flange portion of the fixed iron core to guide the rescue line of the coil to the outside, the coil can be manufactured by winding the conductor in the bobbin. In this case, it takes time to pass the lead through the hole for the rescue line, and there is a problem in that the production time of the coil is long and the lead is easily worn on the inner wall surface of the hole for the rescue line.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the coil manufacturing time is shortened, and damage caused by wear of the lead wires during coil production is reduced.

In the electronic switch for starter according to the present invention, a solenoid case, a switch case coupled at one side opening of the solenoid case, a pair of fixed contacts fixed to each other in the switch case, and provided in the solenoid case, The fixed iron core consisting of the tube part and the flange part extended in the radially outward direction from the end of this tube part, the movable iron core which can reciprocate in the direction which fold | folds with respect to this fixed iron core, and the said movable iron core in the direction to open from the said fixed iron core Gary spring and the coil which is provided through the bobbin on the outer side of the tube portion and the movable iron core of the fixed iron core, by moving the movable iron core in the direction in contact with the fixed iron core against the Gary spring by being excited, and the movable A rod moving with the iron core, and the rod It is provided on the side of a semi-moving iron core, and is provided with the movable contact which is folded by the said fixed contact by the reciprocating movement of the said rod, and electrically connects and interrupts between the said fixed contacts, and is provided in the outer peripheral part of the said flange part. The notch part which leads out the rescue line of the said coil is formed outside.

Best Mode for Carrying Out the Invention

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described about drawing.

Embodiment 1

BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing which shows the electronic switch for starters by Embodiment 1 of this invention.

In the figure, the switch case 2 is coupled to the opening end of the cylindrical solenoid case 1 via the packing 3. In the switch case 2, a pair of fixed contacts 4 are fixed at intervals from each other. Each fixed contact 4 is provided with a terminal 5, respectively. In addition, in FIG. 1, since the fixed contact 4 and the terminal 5 are disposed to face each other in the vertical direction with respect to the ground, only one fixed contact 4 and the terminal 5 are shown. not.

The cylindrical bobbin 7 is accommodated in the solenoid case 1. On the outer circumferential portion of the bobbin 7, a coil 8 composed of a primary coil 8a and a secondary coil 8b provided on the outside of the primary coil 8a is supported. The fixed iron core 9 has a flange portion 9a joined to an end surface of the bobbin 7 on the switch case 2 side, and a cylindrical portion 9b inserted into the bobbin 7. On the flange portion 9a of the fixed iron core 9, a round-plate flat plate 30 made of a magnetic body overlaps. The fixed iron core 9 is fixed to the solenoid case 1 by a screw 31 penetrating the switch case 2.

In the bobbin 7, a movable iron core 10 which can reciprocate with respect to the inner wall surface of the bobbin 7 is inserted, and one end of the movable iron core 10 is folded in a cross section of the cylindrical portion 9b. . In addition, the other end of the movable iron core 10 protrudes out of the solenoid case 1. Between the other end of the movable iron core 10 and the solenoid case 1, there is provided a garry spring 11 for adding the movable iron core 10 in the direction of opening from the fixed iron core 9.

On the axis line of the movable iron core 10, the rod 12 which moves with the movable iron core 10 is provided. The rod 12 has a large diameter portion 12a fixed to the movable iron core 10 and a small diameter portion 12b adjacent to the large diameter portion 12a.

The support member 13 and the ring-shaped support plate 14 which are reciprocally movable in the axial direction are provided in the edge part of the switch case 2 side of the small diameter part 12b of the rod 12. As shown in FIG.

Between the support member 13 and the support plate 14, a flat plate-shaped movable contact 15 which is folded by a pair of fixed contacts 4 is provided. Between the large diameter part 12a of the rod 12 and the support member 13, the contact spring 16 which adds the movable contact 15 to the fixed contact 4 side is provided.

FIG. 2: is a front view of the fixing iron core 9 in the state in which the bobbin 7 was in contact with the flange part 9a of the fixing iron core 9 of FIG.

The donut-shaped flange part 9a is provided with the 1st notch part 32a and the 2nd notch part 32b which oppose each other in the outer peripheral part. One rescue line 33a of the primary coil 8a is drawn out from the first U-shaped notch 32a, and the primary coil 8a is provided from the second U-shaped notch 32b. The other rescue line 33b of () is derived.

In addition, one rescue line 34a of the secondary coil 8b is derived from the second notch portion 32b, and the other of the secondary coil 8b is derived from the first notch portion 32a. The rescue line 34b of is derived. This rescue line 34b is connected to the flange portion 9a by welding.

The flange portion 9a is formed with a screw hole 35 to which the screw 31 is screwed. In addition, a positioning hole 36 is formed in the vicinity of the screw hole 35, and a projection (not shown) formed in the switch case 2 penetrates the positioning hole 36, thereby fixing a fixed iron core ( The relative position of the switch case 2 with respect to 9) is determined.

FIG. 3 is a front view of the plate 30 of FIG. 1, in which the first rescue line hole 37a is formed in the plate 30 so as to face the first notch portion 32a, and the second furnace 30 is formed. A second rescue ship hole 37b is formed opposite the teeth 32b.

In the plate 30, a screw hole 38 is formed to face the screw hole 35, and a positioning hole 39 is formed to face the positioning hole 36.

FIG. 4 is a view when the plate 30 is seen from the left side of FIG. 1 in a state before the switch case 2 is fixed to the solenoid case 1 of FIG. 1, and the plate 30 and the fixed iron core ( 9) is fixed to the solenoid case 1 by the caulking part 1a formed by plastically deforming the outer peripheral end of the solenoid case 1 to the inner diameter side.

Next, the operation of the starter electronic switch of the above configuration will be described.

When the coil 8 is not excited, the movable iron core 10 is opened from the fixed iron core 9 by the spring force of the opening spring 11, and the movable contact 15 is also opened from the fixed contact 4. It is. For this reason, no current flows between the pair of fixed contacts 4.

On the other hand, when the coil 8 is excited, the movable iron core 10 and the movable contact 15 move together with the rod 12 to the left side of FIG. 1 against the elastic force of the gary spring 11. With the movement, the pinion (not shown) is extruded and engaged with the ring gear (not shown) via a shift lever (not shown) provided on the semi-moving contact 15 side of the rod 12, and the pinion and ring gear At the nearly engaged point, the movable iron core 10 abuts against the fixed iron core 9. At this time, the movable contact 15 also abuts on the fixed contact 4. As a result, the fixed contacts 4 are electrically connected to each other via the movable contact 15, current flows between the pair of terminals 5, the starter motor is energized, and the engine starts.

In addition, since the movable iron core 10 and the rod 12 are moved to the left side of FIG. 1 even after the movable contact 15 contacts the fixed contact 4, the support member 13 and the movable contact. 15 is moved relative to the right side of FIG. 1 with respect to the rod 12, and the contact spring 16 is compressed. Thereby, the contact pressure of the movable contact 15 with respect to the fixed contact 4 can be obtained.

According to the starter electronic switch of the above structure, the notch portion 32a which leads the rescue lines 33a, 33b, 34a, 34b of the coil 8 to the outer periphery of the flange portion 9a of the fixed iron core 9 to the outside. , 32b are formed, and when the coil 8 is wound around the bobbin 7 to manufacture the coil 8, the degree of freedom in passing the conductor through the notches 32a, 32b is high, and it can be passed quickly. While the manufacturing time of the coil 8 is shortened, the damage by abrasion at the time of manufacturing the coil 8 is reduced.

Moreover, the round plate-shaped plate 30 in which the rescue line holes 37a and 37b are formed in correspondence with the notch parts 32a and 32b is matched with the surface of the flange part 9a by the switch case 2 side. This plate 30 is fixed to the solenoid case 1 by a caulking portion 1a formed by plastically deforming the outer peripheral end of the solenoid case 1 to the inner diameter side. The caulking portion 1a is in close contact with the outer circumferential portion of the c), and waterproofness of the starter electronic switch is ensured.

In addition, the plate is fixed to the solenoid case, for example, a screw may be used as a matter of course.

Moreover, the plate 30 which is in surface contact with the flange part 9a is comprised by the magnetic body, and the plate 30 comprises a magnetic circuit with the flange part 9a which comprises the magnetic circuit of the magnetic force line which the coil 8 produced | generated. Therefore, even if the thickness of the flange portion 9a is reduced, the magnetic resistance of the magnetic circuit does not increase, and the provision of the plate 30 does not increase the dimension in the axial direction.

In the electronic switch for starter according to the present invention, since the notch portion which leads the coil rescue line to the outside is formed at the outer peripheral edge of the flange portion of the fixed iron core, when the coil is wound around the bobbin to manufacture the coil, Since the tooth can be passed quickly, the manufacturing time of the coil is shortened, and the damage caused by the wear of the conductive wire during coil production is reduced.

Claims (3)

With solenoid case, A switch case joined at one side opening of the solenoid case, A pair of fixed contacts fixed at intervals within the switch case, A fixed iron core provided in the solenoid case and composed of a cylinder portion and a flange portion extending in a radially outward direction from an end of the cylinder portion; A movable iron core capable of reciprocating in a direction that is folded against the fixed iron core, Gary spring for adding the movable iron core in the direction to open from the fixed iron core, A coil provided on the outer side of the tube portion and the movable iron core of the fixed iron core through a bobbin and moving the movable iron core in a direction in contact with the fixed iron core against the Gary spring by being excited; A rod moving together with the movable iron core, A movable contact provided on the side of the semi-moving iron core of the rod and folded on the fixed contact by reciprocating movement of the rod to electrically connect and block the fixed contact; The starter electronic switch, characterized in that the notched portion for leading the rescue line of the coil to the outer periphery of the flange portion. The method of claim 1, On the surface of the flange part of the flange part, a flat plate in which a hole for a rescue ship is formed in contact with the notch part abuts, and this plate is formed by plastically deforming the outer peripheral end of the solenoid case to the inner diameter side. An electronic switch for starter, which is fixed to the solenoid case by a caulking portion. The method of claim 2, And said plate is made of a magnetic material.

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