JPS59127337A - Terminal board unit - 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 [Technical Field] The present invention relates to a terminal board device applied to an electric relay or the like.

[Background technology]

Conventionally, in a relay, a terminal plate having contacts is fixed by caulking. However, there are problems in that it not only takes up space in the height direction, but also requires a caulking process. In addition, there are devices in which the terminal plate is formed into a U-shape and fixed by press-fitting, but it has not been possible to securely fix the terminal plate in all directions.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a terminal board device that is small in size, allows a terminal board to be easily attached by only a full-scale operation, and provides reliable fixing in all directions.

[Disclosure of the invention]

This invention provides a terminal plate which is bent into an L shape, has a contact point on one side line of a vertical piece, and has a terminal screw screw hole in a horizontal piece, and the other side edge of the vertical piece of the terminal plate. A fitting notch provided on the top edge and an elastic cutout piece formed diagonally on the tip edge, and an outer surface of the vertical piece portion and an elastic cutout piece formed so that the terminal plate can be inserted from the other side edge side. A terminal board mounting frame having a pair of facing rising partition walls whose end surfaces touch, and an upper surface of the horizontal piece provided on the terminal board mounting frame, respectively.
A standing wall that abuts the side edge, a receiving protrusion that abuts the other side edge of the lower surface of the horizontal piece, a fitting protrusion that fits into the fitting notch, and a fitting groove into which the elastic cut piece is press-fitted. A side wall with
The terminal screw is provided with a terminal screw that is screwed into the screw hole and engaged with the vertical wall.

A first embodiment in which this invention is applied to a polarized electromagnetic relay is described below.
This is shown in Figures 6 to 6. Figure 1 shows the basic principle. 1st
The yoke 1 is formed into a U-shape by left and right side pieces 2 and 3 and a horizontal piece 4 that connects the left and right side pieces 2 and 3, and the left and right side pieces 2 and 3 have inner surfaces of each other as polarized surfaces. 2a and 3a. The second yoke 5 faces the horizontal piece 4 with a length shorter than the distance between the left and right side pieces 2 and 3 of the first yoke 1. The left and right outer surfaces of the second yoke 5 are polarized surfaces 5a and 5b. The permanent magnet 6 is interposed between the first yoke 1 and the second yoke 5, and its magnetization axis direction is perpendicular. This first degree second yoke 1,5
, permanent magnets 6 are arranged one block above the other. The armature 7 is of a horizontal transition type, and is formed into an H shape by left and right side pieces 8 and 9 and a horizontal rod lO connecting these left and right side pieces 8 and 9, and both the inner and outer surfaces of the left and right side pieces 8 and 9. The armature surface 8
a.

8b, 9a, and 9b. The inner and outer contact surfaces 8a, 8t>, 9a, 9 of this left and right side piece 8°9
b is the inner and outer contact surfaces 2a of the first and second yokes 1.5,
3a.

Confronting 5a and 5b, air gear 7 a l b l
c.

Do each of d. The horizontal rod 10 of the armature 7 is attached to the coil 11.
is penetrated. In Fig. 1, the solid line X indicates the permanent magnet 6
The dotted line Y is the magnetic flux of the coil 11.

2 to 5 embody the basic principle of FIG. 1. The upper and lower first yokes are housed in a box 12 made of synthetic resin that is open at the top.

In this case, the upper and lower first yokes 1 are rotated by 90 degrees from FIG.
Left side piece 2 on IJm14. Horizontal piece 4 touches.

The winding frame I5 of the coil 11 has the following structure.

The coil 11 is wound around the winding trunk 16.
6 has a hole 17 through which the armature 7 passes, side walls 18 and 19 are integrally formed with the winding drum 16 on the left and right sides, and upper and lower second The yoke 5 is fixed in a state rotated by 90 degrees from FIG. 1. The left and right side walls 18 and 19 are provided with notches 20 to facilitate fitting and fixing of the second yoke 5.

Further, the right side wall 19 is provided with a groove 21 into which a receiving blade terminal fitting 22 to which the coil 11 is connected is inserted.

A cover 23 made of synthetic resin is placed over and fixed to the upper opening of the box 12. An insulating plate 24 is interposed between the cover 23 and the box 12.

This cover 23 has the following structure.

The cover 23 has an upper wall 25, a side wall 26 including lowered side walls, and an external separate 27 that is divided into a plurality of parts, and an external separate 27 that is located at the same position as the external separate 27. It consists of an internal separate part 28 and a lower opening cavity 29 that crosses this internal separate part 28.

External terminal boards 30 are fixed to both outer chambers divided by both side walls 26 and external separates 27 of the cover 23. This terminal board 30 has vertical plug blades 31 integrally formed on both sides of the rightmost end, and has a cover 23 and a box 1.
When combined with 2, the receiving blade terminal fitting 22 of the coil winding frame 15
The electrical connection with the coil 11 is completed. The other terminal board 30 is provided with a fixed contact 32 and is located in an image-side interior chamber 33 divided by an interior separate 28 .

Further, a movable base 34 is located in the cavity 29 of the lower opening of the cover 23 and moves parallel to the armature 7 made of synthetic resin.

This movable base 34 has a through-hole 35 formed at a position corresponding to the inner chamber 33 of the cover 23, and a contact plate 36 with contact points 37 protruding on both sides and a contact plate 36 for contact pressure. A coil spring 38 is provided. Contact point 3 of this movable base 34
7 and the contact point 32 of the cover 23 face each other in the inner chamber 33, and are separated when the movable table 34 moves.

This falling of the movable base 34 is prevented by the above-mentioned insulating plate 24. The coupling between the movable base 34 and the armature 7 is reversed and performed by -39.

A shaft 40 is passed through the center of the reversing lever 39, and supported by the shaft hole 41 in the right side wall 19 of the coil winding frame 15.

In the relationship between the reversing lever 39 and the armature 7, the shaft 42 is completely passed through the lower end thereof, the shaft 42 is fitted into the groove 44 of the connecting body 43 from above, and the right end of the armature 7 is inserted into the connecting body 43 to apply the force. It deforms under pressure and becomes a stopper portion 7b.

The left end of the armature 7 is similarly inserted into the left piece 8 and deformed under pressure, and the non-magnetic regular plate 45 is interposed at the same time as the pull-out stopper 7a is stopped. This plate 45 is provided to cant both ends of the magnetic characteristic curve of the permanent magnet 6 and to use the most stable range.

In the relationship between the reversing lever 39 and the movable base 34, the upper end 39a of the reversing lever 39 is hooked into a notch 46 at the lower opening.

Therefore, the armature 7 is 1. If it moves horizontally to the right as indicated by arrow Z, the reversing tray <-39 rotates counterclockwise around the solid shaft 40, and the movable base 34 moves horizontally to the left as indicated by arrow V, which is opposite to the armature 7. The contacts 32 and 37 of each chamber join together. The bonding is maintained by the magnetic flux of the permanent magnet 6 according to the principle diagram shown in FIG.

The armature 7 is pressed in the direction of arrow Z by a chevron-shaped flat plate spring 47. This mountain-shaped flat spring 47 has its top portion 47a in contact with the left side stopper portion 7a of the armature 7, and both ends 47b in contact with the left side wall 14 of the box 12.

The movable base 34 is pressed by a coil spring 48 in a direction opposite to the direction of arrow Y. This coil spring 48 is connected to the movable base 34
It is located between the display column 49 and the left side wall 26 of the cover 23.

The spring pressures of these two springs 47 and 48 will act on the armature 7 and the movable base 34 in opposite directions, and the armature 7 will shift from the state where it is attracted by the magnetic flux of the permanent magnet 6 to the opposite direction. This makes it easier to separate the parts.

The display column 49 of the movable table 34 protrudes from a small hole 50 in the upper wall 25 of the cover 23, and from that position, the internal operation can be confirmed from the outside.

A terminal cover 51 further covers the upper wall 25 of the cover 23. This terminal cover 51 has driver operation holes 53 for terminal screws 52 in number corresponding to the number of terminal plates 30 on both sides.

In addition, to install it, put out the hook feet 54 on both sides and cover 2.
3 into the small hole 55 of the upper wall 25.

Furthermore, skirts 56 are hung down from both sides of the terminal cover 51 to be located between the external separators 27 of the cover 23 and to minimize exposure of the terminal board 30.

In FIGS. 6 and 7, the fixing structure of the terminal plate 30 is simplified. The terminal plate 32 is bent into an L-shape, has fixed contacts 32 on the inner surface and side edges of the vertical piece, and has terminal screw holes 6 on the horizontal piece.
It has 0. ! ,Ta. A fitting notch 61 is provided on the other side of the vertical piece of the terminal plate 30, and an elastic cut-out piece 62 is formed diagonally on the tip edge. The cover 23 serves as a frame for attaching the terminal board, and the width of the inner chamber 33 divided by each internal separate 28 serving as a rising partition wall is equal to the width of the terminal board 3.
It is formed to a width that allows 0 to be press-fitted. The cover 23 includes: a vertical wall 63 that abuts against the upper side edge of the horizontal piece of the terminal plate 30 (FIG. 6 is shown upside down); and a receiving protrusion 64 that abuts the other side edge of the lower surface. A horizontal wall 67 is provided with a horizontal fitting protrusion 65 into which the fitting notch 61 fits and a fitting groove 66 into which the elastic cut and raised piece 62 is press-fitted.

The fitting protrusion 65 and the receiving protrusion 64 are provided on the side wall 68.

The terminal screw 52 is inserted through a stopper 69 , and the stopper 69 engages with the vertical wall 63 .

The procedure for fixing the terminal board 30 will be explained. The terminal plate 30 is inserted in the Y direction into the inner chamber 33 between the internal separates 28, and the upper surface of the horizontal piece portion contacts the vertical wall 63. The fitting notch 61 is press-fitted into the fitting protrusion 65, and the elastic raised piece 62 is press-fitted into the fitting groove 66. In addition, the front edge of the terminal plate 30 is placed on the receiving protrusion 64. Next, the terminal screw 52 is inserted into the inner chamber 33 in the Z direction and screwed into the terminal screw screw hole 60 of the terminal board 30.

Since the terminal board 30 is fixed in this manner, movement in each direction can be restricted as follows. The Z direction is restricted by the vertical wall 63 and the upper surface 30a of the horizontal piece of the terminal board 30.
and the contact between the lower surface 30b of the horizontal piece and the receiving protrusion 64, and the engagement and fitting between the fitting groove 66 and the lower end surface 30c of the vertical piece of the terminal plate 30. This is achieved by press-fitting the notch 61 and the fitting protrusion 65. Regulation in the Y direction is provided by the end surface 69a of the stopper 69 of the terminal screw 52 and the vertical wall 6.
3 and you can get it. The restriction in the X direction is due to the contact between the vertical wall 63 and the upper surface 30a of the terminal board 30, and the contact between the fitting groove 66 and the terminal board 30.
The fitting with the vertical piece part of 0, the width of the terminal board 30 and the internal separation...
The relationship between the widths of the rates 28 and 28 is obtained.

In this way, movement control in all three directions x, y, and z is obtained, and this is achieved only by press-fitting the terminal plate 30 and attaching the terminal screws 52. Therefore, it is easy to attach the terminal board 30, and the terminal board 30 can be made compact.

FIGS. 8 and 9 show other embodiments. In this example, the front end 30d of the vertical piece portion of the terminal plate 30 is extended, and the vertical protrusion 70 that fits this extended portion is formed to have a force of −23. This is similar to the example.

〔Effect of the invention〕

The terminal board device of the present invention has the advantage that it can be formed compactly, the terminal board can be easily attached by only full-length work, and reliable fixation can be obtained in all directions.

[Brief explanation of the drawing]

Fig. 1 is a basic principle diagram of a polarized electromagnetic relay to which an embodiment of the present invention is applied, Fig. 2 is a sectional view showing its specific structure, Fig. 3 is a sectional side view of Fig. 2, and Fig. 4 5 is a sectional plan view, FIG. 5 is an exploded perspective view, FIG. 6 is an enlarged perspective view of the fixed portion of the terminal board, FIG. FIG. 8 is a perspective view of the terminal plate fixing portion of the cover in another embodiment, and FIG. 9 is a bottom view thereof. 7.7-=r Cha, 11... Coil, 15... Winding frame, 23. Cover (terminal board mounting frame), 28... Internal cell wall (rising bulkhead), 30. Terminal board, 52 Terminal screw, 60 Terminal screw screw hole, 62/Elastic cut piece, 63
... Vertical wall, 64... Receiving protrusion, 65... Fitting protrusion, 6
6... Fitting groove, 67, side wall, 69, stopper Figure 2 Figure 3 Figure 4

Claims (1)

[Scope of Claims] A terminal board that is bent into an L-shape, has a contact point on one side edge of a vertical piece, and has a terminal screw hole in a horizontal piece; A fitting notch provided on the other side edge and an elastic cutout piece formed diagonally on the tip edge, and the terminal plate is formed so that the terminal plate can be inserted from the other side edge side, and the outer surface and the side of the vertical piece portion are A terminal board mounting frame having a pair of facing upright partition walls in which the tip surfaces of the one part are in contact, and a standing wall provided in this terminal board mounting frame and abutting the upper surface and the side edge of the horizontal part, respectively, A receiving protrusion that comes into contact with the other side line on the lower surface of one part,
A fitting protrusion that fits into the fitting notch. and (iii) a terminal board device comprising a side wall with a fitting groove into which the elastic cut and raised piece is press-fitted, and a terminal screw which is screwed into the terminal screw screw hole and engaged with the vertical wall.