JPH0834079B2 - Electromagnetic relay - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electromagnetic relay suitable for controlling automobile electrical components and the like that involve forward / reverse rotation of a motor and forward / reverse movement of a plunger.

[Prior Art] In recent years, the development perspective of automobiles is to automate various on-board equipment,
It is aimed at higher quality, and various automobile electrical components such as automatic door lock, power window, automatic seat belt, automatic sunroof, automatic seat control, retractable headlight control, etc. have been developed.

The basic mechanism of these automobile electrical components is to rotate the armature of the motor forward and backward, and to operate the plunger of the solenoid forward and reverse. Generally, two electromagnetic relays as shown in FIG. 5 are used. It has a circuit configuration. Note that FIG. 6 is a waveform diagram of the drive pulse for operating the electromagnetic relay and the current flowing through the motor.

That is, when one of the electromagnetic relays A is driven by the drive pulse x, the current i flowing through the motor M causes the electric contact a _{1 of} the electromagnetic relay A and the electric contact b of the electromagnetic relay B from the battery D.
Flow through ₂ , for example, in the forward direction. Further, when the electromagnetic relay A is released and the other electromagnetic relay B is driven by the drive pulse y, the current i passes through the electric contact b _{1 of} the electromagnetic relay B and the electric contact a ₂ of the electromagnetic relay A in the opposite direction to the above direction. Flow to. In this way, by driving either one of the electromagnetic relays A and B, the circuit configuration is such that the motor M is rotated in a desired direction.

[Problems to be Solved] As described above, the basic electric circuit of the conventional automotive electric component uses two electromagnetic relays because the electromagnetic relays can only perform simple operations of turning on and off. For this reason, the structure of the electric components of the vehicle becomes complicated, and high functionality,
There was a problem that space saving and miniaturization to meet the needs of diversification could not be achieved. This is the same not only for automobile electrical components but also for various electric devices including a basic electric circuit that requires two electromagnetic relays as shown in FIG.

The present invention has been made in view of the above-mentioned problems, and includes two movable contacts that can operate independently, and a fixed make contact for contacting and separating these movable contacts,
Space saving by integrating fixed break contacts
The purpose is to provide an electromagnetic relay that can be miniaturized.

[Means for Solving the Problems] In order to achieve the above object, according to the present invention, a base made of a flat plate-like electrical insulating material and an external lead-out terminal inserted from an upper surface into a mounting hole provided in the base are fixed. First and second electromagnetic blocks, a fixed make contact terminal member vertically having two fixed make contacts in the horizontal direction, which are fixed by being inserted from the upper surface into a mounting hole provided in the base, and provided on the base. An electromagnetic relay comprising: a fixed break contact terminal member vertically having two fixed break contacts in a horizontal direction, which is fixed by being inserted into the mounting hole from the upper surface, and a mounting hole for mounting a movable contact spring member, The first electromagnetic block and the second electromagnetic block each have a bilaterally symmetrical structure, a coil in which a core is mounted and wound around a spool, and a yoke mechanically and magnetically connected to one end of the core, Has a hinge spring fixed to the yoke, an armature movably supported by the hinge spring with the end of the yoke as a fulcrum, and an armature facing the other end of the core, and a movable contact vertically. And the movable contact spring member interlocking with the armature, the base fixes the first and second electromagnetic blocks side by side in the longitudinal direction in a bilaterally symmetrical posture, and fixes the fixed make contact terminal member and the fixed member. The break contact terminal member is fixed with the respective contacts facing each other, and the movable contact spring member is attached so that the movable contacts are located between these contacts.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view of the electromagnetic relay according to the present embodiment, and FIG. 2 is a perspective view showing the same internal assembled state.

In the drawing, 100 is a flexure-type first electromagnetic block, and 200 is a flexure-type second electromagnetic block. Each of the electromagnetic blocks 100 and 200 has a coil 3 which has a core 1 therein and is wound around a spool 2. Both ends of the lead wire forming the coil 3 are connected to two external lead-out terminals 4 provided on the spool 2.

A yoke 5 is provided near the side of the coil 3, and one end of this yoke 5 is mechanically and magnetically connected to one end of the core 1. An armature 6 is formed in a dogleg shape, and has a window 6a and a convex insulator 6b at one end. The armature 6 is movably supported with the end of the yoke 5 as a fulcrum by a hinge spring 7 having one end engaged with the yoke 5 and the other end inserted through the window 6a and magnetically coupled. The other end of the armature 6 is opposed to the other end of the core 1 by the support of the yoke 5 and is attracted to the excited core 1 when the coil 3 is energized.

The hinge spring 7 is made of a conductive material and has one end connected to the yoke 5. Reference numeral 8 is a movable contact spring member formed in a substantially L shape by a material having elasticity,
Movable contacts 9 are provided on both surfaces of the tip.

The above configuration is common to the first and second electromagnetic blocks 100 and 200, but is different in that the assembled state is a bilaterally symmetrical structure.

Reference numeral 300 denotes a fixed make contact terminal member, which is formed in a substantially T-shape, has two fixed make contacts 31 and 32 arranged vertically on both ends, and has an external lead-out terminal 33 extending downward. There is. Fixed break contact terminal member 400 is almost T
The fixed break contacts 41, 42 are formed in a letter shape and are arranged side by side on the vertical portions of both ends, and the external lead-out terminal 43 is extended downward.

Reference numeral 500 denotes a base made of an electrically insulating material, and on its upper surface, mounting holes 51 and 52 for inserting and supporting the external lead-out terminals 3 of the respective electromagnetic blocks, and the movable contact terminal 10 as well.
Mounting holes 53 and 54 for supporting and fixing through, and mounting holes 55 and 56 for supporting and fixing through the external lead terminals 33 and 43 of the fixed make contact terminal member 300 and the fixed break contact terminal member 400, respectively. It is provided.

Thereby, the above-mentioned first and second electromagnetic blocks 100, 20
The fixed contact terminal member 300, the fixed make contact terminal member 300, and the fixed break contact terminal member 400 are fixed to the upper surface of the base 500 with the base end portion.

The first and second electromagnetic blocks 100, 200 are mounted on the base 500 side by side in the longitudinal direction in symmetrical postures. Further, the fixed make contact terminal member 300 fixes the external lead-out terminal 33 by inserting it into the mounting hole 55 of the base 500.
Similarly, the fixed break contact terminal member 400 fixes the external lead-out terminal 43 by inserting it into the mounting hole 56 of the base 500.

Each contact terminal member 300, 40 supported and fixed in this way
The contact points 31 and 41 of 0 and the contact points 32 and 42 of 0 are placed at positions facing each other. The movable contact spring members 8 have the movable contact terminals 10 attached to the mounting holes 5 of the base 500 so that the movable contact spring members 8 have symmetrical positions.
Insert it in 3,54 and fix it. The movable contact spring member 8
The movable contacts 9 and 9 of the contact terminals 31 and 3 of the contact terminal members 300 and 400, respectively.
It is located between 2,41,42. The movable contacts 9 and 9 come into contact with the fixed break contacts 41 and 42 when the current to the coil 3 is cut off, while they are pressed by the insulator 6b of the armature 6 when energized,
Contact the fixed make contacts 31, 32. These operations can be controlled independently for each electromagnetic block 100, 200.

FIG. 3 is a circuit diagram of the electromagnetic relay described above. As can be seen from the figure, a structure is provided in which two movable contacts 9 that can be operated independently are provided, and the fixed make contacts 31 and 32 and the fixed break contacts 41 and 42 that contact and separate the movable contacts 9 are integrated respectively. It has become. Moreover, the base
Since the 500 is commonly used, it is possible to make it smaller, save space, and reduce the number of parts.

In FIG. 1, reference numeral 600 denotes a cover, which is made of acrylic or the like, and whose open end is bonded to the base 500 in a state of covering the above-mentioned structural portion. The cover 600 is not essential to the present invention, and may be left as it is as a final product as shown in FIG. 2 if necessary.

The present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the scope of the invention. Further, the application is not limited to automobile electrical components.

[Effects of the Invention] As described above, according to the present invention, two movable contacts that can operate independently of each other are provided, and a fixed make contact and a fixed break contact for contacting and separating these movable contacts are integrated respectively, In addition to downsizing the electromagnetic relay, it is possible to realize space saving and downsizing of an electric device using this electromagnetic relay.

Also, attach all the members that make up the electromagnetic relay, that is, the first and second electromagnetic blocks, the movable contact spring (armature), the fixed make contact terminal member, and the fixed break contact terminal member all from one direction on the upper surface of the base. It has excellent manufacturability and can be easily adapted to automatic production lines.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an electromagnetic relay according to an embodiment of the present invention,
2 is a perspective view showing an internal assembly state, FIG. 3 is a circuit diagram showing the same circuit configuration, FIG. 4 is a circuit diagram showing a conventional example, and FIG. 5 is a driving pulse for operating an electromagnetic relay. It is a wave form diagram of the electric current which flows into a motor. 100: First electromagnetic block 200: Second electromagnetic block 300: Fixed make contact terminal member 400: Fixed break contact terminal member 500: Base 1: Core, 2: Spool 3: Coil, 4: External lead terminal 5: Yoke , 6: Armature 6a: Window, 6b: Insulator 7: Hinge spring 8: Moving contact spring member, 9: Moving contact 10: Moving contact terminal

Claims (1)

[Claims] 1. A base (50 made of a flat electrical insulating material.
0) and the first and second electromagnetic blocks (100, 200) fixed by inserting the external lead-out terminals (4, 4) from the upper surface into the mounting holes (51, 52) provided in the base (500), A fixed make contact terminal member (300) vertically having two fixed make contacts in the horizontal direction, which are fixed by being inserted from the upper surface into a mounting hole (55) provided in the base (500), and the base (500) A fixed break contact terminal member (400) vertically having two fixed break contacts in the horizontal direction, which is fixed by inserting it from the top surface into a mounting hole (56) provided in, and a movable contact spring member (8, 8). Mounting holes for mounting (53,54)
And an electromagnetic relay comprising: the first and second electromagnetic blocks (100, 200) each having a bilaterally symmetrical structure, in which the core (1, 1) is internally mounted to the spool (2, 2). Winding coil (3, 3), yoke (5, 5) mechanically and magnetically connected to one end of the core (1, 1), and hinge spring fixed to the yoke (5, 5) (7,7) and the hinge springs (7,7) are movably supported with the ends of the yokes (5,5) as fulcrums and face the other end of the cores (1,1). The movable contact spring member (8, 6) having the movable armature (6, 6) and the movable contact (9, 9) provided vertically and interlocking with the armature (6, 6).
8), the base (500) fixes the first and second electromagnetic blocks (100, 200) side by side in the longitudinal direction in a symmetrical position, and fixes the fixed make contact terminal member (300),
The fixed break contact terminal member (400) is fixed with the respective contacts (31, 32) (41, 42) facing each other, and the movable contact is provided between these contacts (31, 32) (41, 42). Contact (9,
An electromagnetic relay characterized in that the movable contact spring members (8, 8) are attached so that the respective 9) are located.