JP2000090800A - Hinged type electromagnetic contactor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a work easy and to reduce cost by providing a projection at a wall part tip on a side which is apart from an extension part of a guide starting end part of a first groove part, providing a notched part expanded toward the first groove part side on a fixed iron core of a second groove part and providing an oblique surface to guide winding to a winding starting location of a main body part of a spool on an extension part of a tip side wall part of the fixed iron core. SOLUTION: At a tip of a wall part 76 of a guide starting end part of a groove part 75 guiding winding 20 to a spool main body 51 side, a projection 77 is provided. At a base end side wall part 57 of a second groove part 78 to guide winding 20 to a winding starting location of a spool main body 51, a notched part is provided, a collar part 52b is exposed and an oblique surface 80 is formed. When winding 20 is wound on the main body part 51 of a spool 50, winding 20 bound in a binding part 64 of a binding terminal 60a is slid to the groove part 75 side along the projection 77 and is inserted into the groove part 75. Next, winding 20 is bent in a radial direction of the spool main body 51, winding 20 is put on a wall part of the collar part 52b exposed by the notch, winding 20 is slid by the oblique surface 80 and winding 20 is inserted into the second groove part 78.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge type electromagnetic contactor used for a motor or the like.

[0002]

2. Description of the Related Art As a conventional hinge type electromagnetic contactor of this type, for example, the one shown in FIG. 9 is known. The hinge type electromagnetic contactor 1 includes an upper frame 2 and a lower frame 3, and the upper frame 2 has a fixed contact 4,
A contact support 7 movably approaching and moving away from the fixed contact 4 while holding the movable contact 5 and the contact spring 6, and a return spring for urging the contact support 7 away from the fixed contact 4. (Biasing member) 8 and lower frame 3
And an insulating plate 9 for partitioning between them.

On the other hand, the lower frame 3 has an electromagnet 10
, A substantially L-shaped yoke 12, a spool 13, an armature 14, and the like are accommodated.

The fixed core 11 has a columnar shape and is arranged so that its axis is parallel to the moving direction of the contact support 7, and the base end is fixed to the yoke 12. The spool 13 includes a cylindrical main body 21 that is fitted around the fixed iron core 11 in a state in which the winding 20 is wound.
Are provided with brim portions 22a and 22b at both ends. An extension 23 extending in the direction of the distal end of the fixed iron core 11 is provided on the periphery of the flange 22b provided on the distal end side of the fixed iron core 11 in each of the flange portions 22a and 22b.

[0005] The armature 14 is arranged opposite to the distal end of the fixed iron core 11, and its base end is rotatably engaged with the yoke 12, and the engaging portion is used as a rotating shaft of the armature 14. The tip of the armature 14 is engaged with an engaging portion 7 a provided on the contact support 7.

Further, projections 27a are formed on both sides of the distal end of the armature 14 in the width direction, and the armature 14 is fixed between the projection 27a and the extending portion 23 of the spool 13 of the fixed core 11. An armature spring 15 biasing in a direction away from the distal end is interposed.

Next, the operation of the hinge type electromagnetic contactor 1 will be described. When the winding 20 is excited in the state shown in FIG. 9, a magnetic path is formed in the fixed core 11, the yoke 12 and the armature 14, and the armature 14 is formed. Rotates in a direction approaching the distal end of the fixed iron core 11 with the rotation axis as a fulcrum, and enters a suction state. The distal end of the armature 14 fixes the engaging portion 7 a of the contact support 7 against the urging force of the return spring 8. Press to the contact 4 side. As a result, the contact support 7 moves toward the fixed contact 4 and the movable contact 5 comes into contact with the fixed contact 4 and the contact is closed.

When the excitation of the winding 20 is released in the contact closed state, the contact support 7 moves to the side separated from the fixed contact 4 by the biasing force of the return spring 8 and the contact spring 6, and the engaging portion 7a is armatured. The distal end of the fixed armature 11 is pushed away from the distal end of the fixed core 11 to rotate the armature 14 in the same direction, whereby the movable contact 5 separates from the fixed contact 4 and returns to the contact open state, and these operations are repeated. The contact is opened and closed by the switch.

By the way, in FIG. 10 to FIG.
Reference numerals 0a and 30b denote a pair of helical terminals arranged on the outer surface side of the extending portion 23 of the spool 13 so as to be separated from each other in the radial direction of the main body 21. The lashing terminals 30a and 30b are integrally provided on the outer surface side of the extending portion 23 of the spool 13 corresponding to the lashing terminals 30a and 30b.
a, 31b, a substantially U-shaped contact portion 33 inserted into the mounting portions 31a, 31b from an opening 32 provided on the radially outer side of the spool body portion 21; And a shank 34 projecting outward in the radial direction and shaving the end of the winding 20.

An external wiring is connected to the contact portion 33, and a connecting portion 34 of the connecting terminal 30a is provided.
, The starting end of the winding 20 is kinked and soldered, and the ending of the winding 20 is kinked and soldered to the kinking portion 34 of the kinking terminal 30b.

The winding 20 tied to the shank 34 is provided between the shank 34 and the extension 23 of the shank terminal 30a.
Groove 3 for guiding the spool 13 to the main body 21 side of the spool 13
5, the first groove 35 is formed by a wall of the extension 23 and a wall 36 facing the outer surface of the wall. The wall of the flange 22b of the spool 13 and the wall 37 disposed on the base end side of the fixed iron core 11 of the wall.
The winding 20 guided in the first groove 35 is guided inward in the radial direction of the spool body 21 so that
The second groove 38 for guiding to the winding start position is formed.

On the other hand, a third portion for guiding the terminal end of the winding 20 wound around the spool body 21 to the lashing portion 34 between the lashing portion 34 and the extension portion 23 of the lashing terminal 30b. A groove 39 is arranged, and the third groove 39 is formed by a wall of the extension 23 and a wall 40 facing the outer surface of the wall.

In order to wind the winding 20 around the main body 21 of the spool 13, first, the starting end of the winding 20 is soldered to the shaving portion 34 of the shaving terminal 30a, and then the winding is performed. The wire 20 is inserted into the first groove 35 and into the second groove 38 to guide the winding 20 to the winding start position of the main body 21. Next, the winding 20 is wound around the spool body 21, and after the winding is completed, the end of the winding 20 is connected to the third groove 39.
And guided to the lashing portion 34 of the lashing terminal 30b,
Next, the terminal end of the winding 20 is tied to the tying part 34 and soldered.

[0014]

However, in such a conventional hinge type electromagnetic contactor 1, the gang terminal 3 is provided.
The operation of inserting the starting end of the winding 20 tied to the tying part 34a into the first groove part 35 and the second groove part 38 and leading it to the winding start position of the spool body 21 is very time-consuming. There is an inconvenience that it hinders a reduction in manufacturing cost and that it is difficult to automate by a machine.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned disadvantage, and a spool is formed by inserting a starting end of a winding wound on a buckling portion of a buckling terminal into a first groove portion and a second groove portion. An object of the present invention is to provide a hinge type electromagnetic contactor capable of facilitating an operation of guiding a main body portion to a winding start position, reducing manufacturing cost, and enabling automation of the operation by a machine. I do.

[0016]

In order to achieve the above object, a hinge type electromagnetic contactor according to a first aspect of the present invention comprises a columnar fixed core having a base end fixed to a substantially L-shaped yoke, and a winding. In addition to having a cylindrical main body that is fitted around the fixed iron core in a state in which the wire is wound, the main body has flanges provided at both ends of the main body. A spool having an extending portion extending from a peripheral edge of a collar portion provided on the distal end side of the fixed iron core toward the distal end of the fixed iron core; and an end of the winding attached to an outer surface side of the extending portion. A main body of the spool, the main body of the spool having a barb terminal having a barb portion whose portion is barbed, and a starting end of the winding disposed between the barb portion and the extending portion and wrapped around the barb portion; A first groove portion guided to the side of the spool, and the winding guided by the first groove portion is connected to a book of the spool. A second groove that guides radially inward of the portion and guides it to the winding start position of the main body; and a second groove that is disposed to face a distal end of the fixed iron core and has a base end rotatably engaged with the yoke. Armature, a contact support in which a tip end of the armature is engaged, the contact support moves toward and away from the fixed contact while holding the movable contact by the rotating operation of the armature, and the contact support is separated from the fixed contact. A hinge-type electromagnetic contactor provided with a biasing member for biasing the first groove portion, wherein a projection is provided at a tip of a wall portion of the guide start end portion of the first groove portion on a side away from the extending portion, and the second A notch portion extending toward the first groove portion is provided in a wall portion of the groove portion on the base end side of the fixed core, and an extension of a wall portion on the distal end side of the fixed core of the second groove portion is provided. The winding start position of the main body of the spool Characterized in that a slope for guiding.

According to a second aspect of the present invention, there is provided a hinge type electromagnetic contactor according to the first aspect, wherein a first stopper portion for preventing detachment of the lashing terminal is provided at a mounting portion of the lashing terminal.
The elastic terminal is provided with elasticity.

According to a third aspect of the present invention, there is provided the hinge type electromagnetic contactor according to the first or second aspect, wherein a second stopper portion for preventing the winding from coming off is provided at the buckling portion of the buckling terminal. And

[0019]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIGS. FIG. 1 is a front view showing the structure of a spool of a hinge type electromagnetic contactor according to an embodiment of the present invention, showing a state before winding a coil on a main body of the spool, and FIG. 3, FIG. 3 is a bottom view of FIG. 1, FIG. 4 is a right side view of FIG. 1, FIG. 5 is a cross-sectional view taken along line VV of FIG. 1, and FIG. FIG. 7 is a right side view of FIG. 6, and FIG. 8 is VIII of FIG.
FIG. 8 is a sectional view taken along line VIII. In this embodiment, only different portions from the hinge type electromagnetic contactor 1 described in the conventional example (FIG. 9) will be described, and overlapping portions will be described with the same reference numerals.

The spool 50 has a cylindrical main body 51 which is fitted around the fixed iron core 11 in a state where the winding 20 is wound, and flanges 52a, 52 are provided at both ends of the main body 51.
b are provided respectively. Each brim 52a, 52b
Flange 52b provided on the distal end side of fixed iron core 11
The extension 5 extending in the tip direction of the fixed iron core 11
3 are provided.

On the outer surface of the extension portion 53 of the spool 50,
A pair of hair terminals 60a and 60b are arranged apart from each other in the radial direction of the main body 51. Hair terminal 60a,
60b has a spring property, and the tie terminals 60a and 60b
b, the openings 6 of the lashing terminal mounting portions 61a and 61b provided integrally on the outer surface side of the extension portion 53 of the spool 50.
2, a substantially U-shaped contact portion 63 inserted into the mounting portions 61a and 61b, and an end of the winding 20 protruding from the contact portion 63 radially outward of the spool body 51. And a lashing portion 64 to be provided.

The opening 6 of the gang terminal mounting portions 61a and 61b
Numerals 2 are directed outward in the radial direction of the spool main body 51.
A locking projection (first stopper portion) 65 for preventing the helmet terminals 60a and 60b inserted into 1b from coming off is provided. When inserting the lashing terminals 60a, 60b into the lashing terminal attachment portions 61a, 61b, the lashing terminals 60a, 60b are moved over the locking projections 65 by the resiliency of the above-mentioned lashing terminals 60a, 60b.

An external wiring is connected to the contact portion 63, and a connecting portion 64 of the connecting terminal 60a is provided.
, The starting end of the winding 20 is tied and soldered, and the ending of the winding 20 is tied and soldered to the tying portion 64 of the tying terminal 60b. Also,
A locking projection (second stopper) 66 for preventing the winding 20 from coming off is provided at the tip of each of the bending portions 64 of the bending terminals 60a and 60b.

The winding 20 tied to the tying portion 64 is provided between the tying portion 64 and the extending portion 53 of the tying terminal 60a.
A first groove 75 is provided to guide the first groove 75 to the spool body 51 side, and the first groove 75 is formed by a wall of the extension 53 and a wall 76 opposed to the outer surface of the wall. Have been. A projection 77 projecting outward is provided at the tip of the wall 76 located at the guide start end of the first groove 75. The winding 20 tied to the tying portion 64 of the tying terminal 60a is hooked on the projection 77, and the winding 20 is arranged substantially parallel to the first groove 75. In this state, the winding 20 is removed. By sliding the wire 20 along the protrusion 77 toward the first groove 75, the winding 20 is inserted into the first groove 75.

The wall of the flange 52b of the spool 50 (second wall)
Between the grooved portion of the fixed core 11 and the wall 57 disposed on the base end of the fixed core 11.
The winding 20 guided by the groove 75 of the spool main body 51
A second groove 78 is formed to be guided inward in the radial direction of the main body 51 and guided to the winding start position of the main body 51. Second groove 78
The first groove 7 is formed in the wall 57 on the base end side of the fixed iron core 11.
A notch 79 extending toward the fifth side is provided, and the winding 20 is provided at an extension of the wall of the flange 52 a constituting the second groove 78 at a position where the main body 51 of the spool 50 starts winding. A guiding slope 80 is provided. After inserting the winding 20 into the first groove 75, the winding 20 is inserted into the spool body 51.
Is bent inward in the radial direction and placed on the wall of the flange 52b exposed by the notch 79. In this state, the winding 20 is slid on the slope 80 and inserted into the second groove 78, and It is led to the winding start position 51.

On the other hand, a third terminal for guiding the terminal end of the winding 20 wound around the spool body 51 to the connecting portion 64 between the connecting portion 64 and the extending portion 53 of the connecting terminal 60b. A groove portion 81 is provided, and the third groove portion 81 is formed by a wall portion of the extension portion 53 and a wall portion 82 arranged to face the outer surface of the wall portion.

In order to wind the winding 20 around the main body 51 of the spool 50, first, the starting end of the winding 20 is tied and soldered to the tying portion 64 of the tying terminal 60a, and then The winding 20 tied to the tying portion 64 is
In this state, the winding 20 is slid along the protrusion 77 toward the first groove 75 so that the winding 20 is slid toward the first groove 75. Insert at 75.

Next, the winding 20 is connected to the spool body 51.
Is bent inward in the radial direction and is placed on the wall of the flange 52b exposed by the notch 79. In this state, the winding 20 is
The groove 78 is inserted into the second groove 78 by sliding on a slope 80 provided on an extension of the flange 52b constituting the groove 78b, and is guided to the winding start position of the spool body 51.

Next, the winding 20 is wound around the spool body 51, and after the winding is completed, the end of the winding 20 is connected to the third groove 81.
And guided to the lashing portion 64 of the lashing terminal 60b,
The end of the winding 20 is tied to the tying part 64 and soldered.

As described above, in this embodiment, the projection 7 is provided at the tip of the wall 76 located at the guide start end of the first groove 75.
7, a notch 79 extending toward the first groove 75 is provided in the wall 57 of the second groove 78 on the base end side of the fixed core 11, and a notch 79 is formed in the wall of the flange 52 b. Since the extending portion is provided with the inclined surface 80 for guiding the winding 20 to the winding start position of the main body 51 of the spool 50, the starting end of the winding 20 tied to the tying portion 64 of the tying terminal 60a is set to the first position. The spool body 5 is inserted into the groove 75 and the second groove 78 and
The operation of leading to the first winding start position is facilitated, so that the manufacturing cost can be reduced, and the operation can be automated by a machine.

[0031]

As is apparent from the above description, according to the first aspect of the present invention, the starting ends of the windings wound on the connecting portions of the connecting terminals are connected to the first groove and the second groove. The operation of inserting and guiding to the winding start position of the spool body can be facilitated to reduce the manufacturing cost, and furthermore, there is obtained an effect that the operation can be automated by a machine.

According to the second aspect of the present invention, in addition to the first aspect of the present invention, there is an effect that the lashing terminal inserted into the lashing terminal mounting portion can be properly prevented from coming off from the mounting portion. can get.

According to the invention of claim 3, claim 1 or 2
In addition to the invention described above, the effect that the winding wound on the kinked portion can be prevented from coming off satisfactorily can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view showing a structure of a spool of a hinge type electromagnetic contactor as an example of an embodiment of the present invention, showing a state before winding a winding on a main body of the spool.

FIG. 2 is a plan view of FIG.

FIG. 3 is a bottom view of FIG. 1;

FIG. 4 is a right side view of FIG.

FIG. 5 is a sectional view taken along line VV of FIG. 1;

FIG. 6 is a front view showing a state in which a winding is wound around a main body of the spool.

FIG. 7 is a right side view of FIG.

8 is a sectional view taken along line VIII-VIII in FIG.

FIG. 9 is a schematic sectional view of a hinge type electromagnetic contactor.

FIG. 10 is a front view showing a structure of a spool of a conventional hinge type electromagnetic contactor, showing a state in which a winding is wound around a main body of the spool.

FIG. 11 is a right side view of FIG.

FIG. 12 is a sectional view taken along line XII-XII of FIG. 10;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 2 ... Upper frame 3 ... Lower frame 4 ... Fixed contact 5 ... Movable contact 7 ... Contact support 8 ... Return spring (biasing member) 11 ... Fixed iron core 12 ... Yoke 14 ... Armature 15 ... Armature spring 20 ... Winding 50 ... Spool 51: Body 52a: Collar 52b: Collar (wall on the distal end side of fixed iron core of second groove) 53 ... Extended part 57: Wall of fixed iron core of second groove near base end 60a , 60b ... helmet terminal 61a, 61b ... helmet terminal mounting portion 64 ... helmet portion 65 ... locking projection (first stopper portion) 66 ... locking projection (second stopper portion) 75 ... first groove portion 76: wall portion on the side away from the extending portion of the first groove portion 77: projection 78: second groove portion 79: notch portion 80: slope

Claims (3)

[Claims] A fixed core having a base end fixed to a substantially L-shaped yoke; a cylindrical main body externally fitted to the fixed core in a state in which a winding is wound; A flange provided at both ends of the main body, and extending from a peripheral edge of a collar provided at a distal end side of the fixed core in each flange in a tip direction of the fixed core. A spool having an extended portion, a terminal attached to an outer surface of the extended portion, and a terminal having an edge to which the end of the winding is attached; and a terminal having the extension and the extension. And a first groove for guiding the start end of the winding wound on the tether to the main body side of the spool, and the winding guided by the first groove. A second groove portion which is guided radially inward of the main body portion of the spool and guides the spool to a winding start position of the main body portion; An armature opposed to the distal end of the core, the base end of which is rotatably engaged with the yoke; and the armature has its distal end engaged and holds the movable contact by the rotating operation of the armature. A hinge type electromagnetic contactor comprising: a contact support that moves toward and away from a fixed contact; and an urging member that urges the contact support toward a side separated from the fixed contact, wherein a guide start end of the first groove portion is provided. A notch extending toward the first groove side in a wall portion of the second groove portion at a base end side of the fixed iron core, the protrusion being provided at a tip of a wall portion on a side away from the extension portion; A hinge for providing a winding to a winding start position of the main body of the spool in an extension of a wall portion of the second groove portion on a tip end side of the fixed iron core. Type electromagnetic contactor. 2. The mounting device according to claim 1, wherein a first stopper portion for preventing detachment of the lashing terminal is provided at a mounting portion of the lashing terminal, and elasticity is imparted to the lashing terminal. Hinge type electromagnetic contactor. 3. The hinge-type electromagnetic contactor according to claim 1, wherein a second stopper portion for preventing the winding from coming off is provided at the buckling portion of the buckling terminal.