JPS61259428A - electromagnetic switch device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electromagnetic switch device suitable for use in a starter motor.

[Conventional technology]

Conventionally, this type of electromagnetic switch device
No. 9, Utility Model No. 57-14347 or Utility Model Application No. 59-
No. 11160, and is configured as shown in FIG. To roughly explain this based on the same figure, 1
is an electromagnetic switch, 2 is a plunger, 3 is a solenoid coil, 4 is a movable contact member, 5 and 6 are fixed contact members, 7
and 8 is a relay, 9 and 10 are coils, 11 and 12 are normally open contacts, 13 is a key switch, 14 is a battery, 15 and 16 are DC motors, 17 and 18 are motor rotation shafts, and 19 and 20 are overrunning clutches , 21 and 22 are pinions, 23 is an internal gear, 24 is an output rotating shaft, 25 and 26 are bearings, 27 is a helical spline, 28 is a stopper, 29 is a sleeve, 3
0 is a lever retaining groove, 31 is a shift lever 132 is a binion, and 33 is a ring gear.

In the electromagnetic switch device configured in this manner, when the key switch 13 is closed, the solenoid coil 3 is connected to the buffer relay 14 and energized. For this reason,
The plunger 2 moves to the left in the figure, and the shift lever 31
rotates counterclockwise in the figure, and the pinion 32 moves on the output rotation shaft 24 rightward in the figure and meshes with the ring gear 33. At this time, since the movable contact member 4 contacts the fixed contact members 5 and 6, the coil 9.10 is energized and the normally open contact 11.12 is closed, thereby causing the DC motor 15.
16 is connected to the battery 14 and rotates. The rotational force of these electric motors 15, 16 is transmitted to the ring gear 33 via the output rotating shaft 24, and the engine is started.

Note that the pinion 32 is connected to the ring gear 3 when the engine is started.
3, the rotational force of one of the DC motors 15 or 16 is transmitted to the pinion 32, and the pinion 32 moves on the output rotation shaft 24 until it meshes with the ring gear 33 at the normal position, and then moves. The contact element 4 contacts the fixed contact element 5.6.

[Problem that the invention seeks to solve]

By the way, in this type of electromagnetic switch device, two relays 7.8 are required to energize the two DC motors 15.16, which makes the structure complicated and the device large. There was a problem.

[Means for solving problems]

The electromagnetic switch device according to the present invention includes three fixed contact members, each of which is connected to two electric motors and a power source.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an electromagnetic switch device that can simplify the structure and downsize the device.

[For production]

In the present invention, the fixed contact members are composed of three pieces, and each of these fixed contact members is connected to two electric motors and a power source, so there is no need for a relay to energize the two electric motors, which was required in the past. becomes.

〔Example〕

FIG. 1 is a circuit diagram showing an electromagnetic switch device according to the present invention,
Figures 2 and 3 are exploded perspective views and rear views showing the main parts of the electromagnetic switch device, and Figure 4 is IV-IV of Figure 3.
FIG. In the figure, the reference numeral 41 indicates a mild steel type yoke, which has a pilot part 41a and an inner flange (not shown) at both ends, and is formed into a cylindrical shape as a whole.

42 is a bobbin made of nylon resin, which is housed in the yoke 1, and has a solenoid coil 43.42 on its outer circumferential surface. A holding coil 44 is wound around it. 45 has an insertion hole 45 in the center.
It is a fixed iron core having a diameter of 1.a, and is caulked and fixed to the pilot part 41a together with a switch cap 46 made of synthetic resin. Reference numeral 47 denotes a movable member having a flange 47a and a retaining ring circumferential groove 47b, which is inserted through the insertion hole 45a and movable in the axial direction within the bobbin 42, and has a retaining ring 48 at one end. A movable contact member 49 is loosely fitted through an insulating bushing 50. This movable contact member 49 is made of a pressed electrolytic copper material, and has an insertion hole 49a in the center through which the movable member 47 is inserted. Reference numeral 51 denotes three fixed contact members facing the movable contact member 49, which are mounted in the through holes 46a provided in the switch cap 46 using toothed washers 52. These three fixed contact members 51 are made of electrolytic copper header processed material, have spherical convex portions 53 on their contact surfaces, and are positioned at 120° intervals on the same circumference. This stabilizes the switching operation and provides a large-capacity switching mechanism.

These fixed contact members 51 are each connected to two DC motors 54 and a power source 55, and when the movable contact member 49 contacts the fixed contact members 51, both DC motors 54 are connected to the power source 55. configured to connect. Spring 56 and 57 have a biasing force in the axial direction of the yoke 41, and are elastically loaded between the retaining ring 48 and the switch cap 46 and between the flange 47a and the insulating bushing 50, respectively. . In addition, 5
Reference numeral 8 denotes a lead wire for energizing the solenoid coil, which is soldered to a connector 60 which is caulked and fixed to the switch cap 46 with a stopper 59. Further, 61 is an insulating washer interposed between the retaining ring 48 and the movable contact member 49, 62 is a connector connected to the solenoid coil 43, 63 is a key switch, and 64 is a packing.

In the electromagnetic switch device configured in this way, when the key switch 63 is closed, the solenoid coil 43
Due to the excitation force, the movable member 47 moves upward in FIG. The engine is started in the same manner as described above.

As described above, according to the electromagnetic switch device according to the present invention, the fixed contact members 51 are composed of three pieces, and these fixed contact members 5
1 are connected to two DC motors 54 and a power source 55, so there is no need for a relay for energizing the two motors, which was required in the past.5 Note that in this embodiment, the movable contact member 49 Although an example has been shown in which the contact surface of the movable contact member 49 and the convex portion 53 are provided on the contact surface of the fixed contact member 51, the present invention is not limited to this. It is also possible to provide a convex portion on the contact surface of the movable contact member 49, or it is also possible to provide a convex portion only on the contact surface of the movable contact member 49.

In addition, the power source 55 of the fixed contact member 51 according to this embodiment
If an electrical contact member such as silver or tungsten is fixed to the surface of the fixed contact member 51 connected to the contact member 51, the contact capacitance balance of the device will be improved.

Furthermore, although this embodiment shows an example in which the invention is applied to a starter motor, the present invention can also be applied to ordinary electric machines.

〔Effect of the invention〕

As explained above, according to the present invention, the fixed contact member is
Since these fixed contact members are each connected to two electric motors and a power source, there is no need for a relay to energize the two electric motors, which was required in the past, simplifying the structure and making the device more compact. It is possible to measure the

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing an electromagnetic switch device according to the present invention,
Figures 2 and 3 are exploded perspective views and rear views showing the main parts of the electromagnetic switch device, and Figure 4 is IV-IV of Figure 3.
5 is a sectional view showing a conventional electromagnetic switch device. 43... Solenoid coil, 45-- Fixed iron core, 47... Movable member, 49... Movable contact member, 51... Fixed contact member, 54... DC motor, 55...Power supply. Agent Masuo Oiwa Figure 1 49: Movable pupil p, upper body 51/l Ryokan Retsuko Gansho 60-99935 No. 2,
Name of the invention: Electromagnetic switch device 3; Relationship with the amended case Patent applicant address: 2-2-3 Marunouchi, Chiyoda-ku, Tokyo Name (601) Mitsubishi Electric Corporation Representative: Moriya Shigi 4; Agent Address ゛ 2-2-3 Marunouchi, Chiyoda-ku, Tokyo, Column 6 of Detailed Description of the Invention of the Specification Subject to Amendment, “Said Yoke 1” on page 5, line 7 of the Specification Subject to Amendment It is corrected to "the yoke 41."

Claims (3)

[Claims] (1) A fixed contact member that is contacted by a movable contact member when the movable member is moved by the excitation force of a solenoid coil, and two electric motors that are connected to a power source by the contact of the movable contact member to the fixed contact member. An electromagnetic switch device comprising three fixed contact members, each of which is connected to both the electric motors and the power source. (2) The electromagnetic switch device according to claim 1, wherein the contact surface of the movable contact member is a convex surface. (3) The electromagnetic switch device according to claim 1, wherein the contacted surface of the fixed contact member is a convex surface.