JPH0112759Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a container device for electrical equipment such as a circuit cutter or disconnector, and its purpose is to temporarily fix the combined container so that it does not come apart. Moreover, the purpose is to enable easy assembly.

The following description will be given based on drawings of FIGS. 1 to 8 of an overcurrent relay showing an embodiment of the electrical device body device of the present invention. Reference numeral 1 denotes the body of the overcurrent relay, which includes a side plate 2a and a side plate 2a. Upper and lower plates 2b, 2c and left and right side plates 2d, 2 formed on the upper, lower, left and right sides of this side plate 2a.
A pair of one-opening covers 2 configured with e and e are combined with each other facing each other in the front and back. Therefore, a space 1a is formed inside this container body 1. The rivets 3 are used as connectors for holding the covers 2 together, and are inserted into holes 2f formed at the four corners of the top, bottom, left and right of the side plate 2a of the cover 2. Of course, stud 3
Screws may be used instead. Reference numeral 4 designates a fixture for this overcurrent relay, which has holes 5a and 5 through which the studs 3 are inserted.
The upper plate 2b of the vessel body 1 is formed into a U-shape with a connecting piece 4c having a screw hole 6 for a mounting screw, which connects the upper ends of the front and rear end pieces 4a and 4b with the upper end pieces 4a and 4b. The connecting piece 4c is fitted into the groove 7a formed in the side plate 2a for positioning, and the end pieces 4a, 4b are fitted into the grooves 7b, 7b formed in the side plate 2a of the cover 2, which are connected to the groove 7a, so that the cover 2 does not come apart. Temporarily fix the holes 5a and 4b of both end pieces 4a and 4b.
5b and the upper left and right rivets 3 of the holes 2f formed in the cover 2 are inserted to attach the cover 2. Note that the groove 7a formed in the upper plate 2b of the vessel body 1 is provided as necessary.

The following structural mechanical parts are housed in the space 1a of the container body 1. That is, 8 is a holding plate installed inside the container body 1, and includes a vertical board 8a and a side plate 8 formed by bending the front and rear sides of this vertical board 8a to the right.
b and a horizontal plate 8c formed by bending the lower side of the vertical board 8a to the left, and a protruding piece 8d at the lower end of the side plate 8b fits into a recessed receiving part 2g formed at the center of the lower end of the side plate 2a of the cover 2. Both ends of the handle pin 10, which is inserted through the hole 9 formed at the upper end of the side plate 8b and bridged between the side plates 8b, are fitted into the hole receiving part 2h formed at the center of the upper end of the side plate 2a of the cover 2, and the container body is closed. It is fixed at 1. 11 is a handle,
It is centrally supported by the aforementioned handle pin 10, one end of which is an operating end 11a that protrudes from a window hole 1b formed in the upper plate 2b of the container body 1, and the other end is a fork-shaped cam end 1.
1b. 12 is a hole through which the handle pin 10 formed on the handle 11 is inserted. 13 is a trip link whose upper end 13a fits into the cam end 11b of the handle 11, and both 13 are connected by a support shaft 14.
a, 11b. 15 is a hole formed in the cam portion 11b of the handle 11 through which the support shaft 14 is inserted;
Reference numeral 6 denotes a hole formed at the upper end 13a of the trip link 13, through which the support shaft 14 is inserted. 17 is handle 1
Attach the handle pin 1 to the winding part 17a with the return spring 1.
0 is inserted and held, and one end 17 of this winding portion 17a is
b on the side plate 8b of the holding plate 8, and the other end 1
7c is hooked onto the support shaft 14 to impart a counterclockwise spring force to the handle 11. Reference numeral 18 is a link, which connects the front and rear side plates 18a, 18b and this front and rear side plate 1.
Connecting plate 18c connecting the upper right sides of 8a and 18b
The upper end 1 between the side plates 18a and 18b
The lower end 13b of the trip link 13 is fitted into 8d, and both 18d and 13b are pivotally supported by studs 19.
Reference numeral 20 denotes a hole formed in the link 18 through which the stud 19 is inserted, and 21 a hole formed in the trip link 13 through which the stud 19 is inserted. Therefore, the trip link 13 rotates around the stud 19,
In this rotation, the clockwise rotation is caused by the connection plate 18c between the stopper piece 13c formed between the upper end 13a and the lower end 13b of the trip link 13 and the link 18.
It will stop at the position where it comes into contact with. Reference numeral 22 is a trip lever consisting of a lever part 22a and a shaft part 22b fixed to one end of this lever part 22a, and a notch part 22c with a semicircular shaft cross section is formed in the center of this shaft part 22b. There is. Furthermore, this shaft portion 22b is inserted into a hole 23 formed at the upper left end of the link 18, and an E-shaped retaining ring 24 is fitted to the end of the shaft portion 22b to prevent it from coming off. Reference numeral 25 is a trip lever spring spring, which has a winding portion 25.
The shaft portion 22b of the trip lever 22 is inserted and held through the link 1.
8 and the other end 25c is hooked on the lever portion 22a of the trip lever 22 to apply a clockwise spring force to the trip lever 22 around the shaft portion 22b. Reference numeral 18d designates a hook piece for a trip lever spring spring 25 formed on the link 18 and serving also as a rotation stopper for the trip lever 22.
When the lever portion 22a of the trip lever 22 is in contact with the hook piece 18d formed on the link 18, the hook piece 13d formed on the left end of the trip link 13 is hooked on the shaft portion 22b of the trip lever 22, and the rivet is engaged. The rotation of the trip link 13 about the rotation point 19 is stopped in both the clockwise and counterclockwise directions, and when the trip lever 22 rotates counterclockwise, the hook 13d of the trip link 13 engages with the notch 22c of the trip lever 22. This allows the trip link 13 to rotate. 26 is a movable contact;
27 is a movable contact plate with the movable contact 26 fixed to the right end, and the center of this plate is connected to the side plate 18a of the link 18,
Both are pivotally supported by a rivet 28 which is fitted into the lower end 18e between 18b. 29 is the side plate 18a of the link 18;
a hole 30 formed in 18b through which the stud 28 is inserted;
is a hole formed in the movable contact plate 27 through which a stud 28 is inserted. The point of this hole 30 becomes the point of action of the opening/closing operation. 31 is a long hole formed at the left end of the movable contact plate 27, 32 is a support shaft that is inserted through this long hole 31, and both ends of this support shaft 32 are inserted into a hole 33 formed at the lower end of the side plate 8b of the holding plate 8. By inserting it, the movable contact plate 27 is pivotally supported on the holding plate 8. Reference numeral 34 denotes an opening spring, which includes coil spring parts 34a and 34b through which a supporting shaft 32 is inserted between the side plate 8b of the holding plate and the movable contact plate 27, and this coil spring part 34.
The acting part 34c and the coil spring part 34 are hooked on the movable contact plate 27 connecting the opposite ends of the parts a and 34b.
Side plate 8b of retaining plate 8 formed at the other end of a, 34b
These hook pieces 34d and 34e are hooked onto a key piece 8e formed by bending the lower ends of the side plate 8b inward to apply a counterclockwise spring force to the movable contact plate 27. It is granted.

Therefore, the coil spring 34a of this opening spring 34,
At 34b, the movable contact plate 27 is connected to the side plate 8b of the holding plate 8.
It is positioned without wobbling in between.
35 is a fixed contact that separates from the movable contact 26; 36 is an inverted L-shaped terminal plate with the fixed contact 35 fixed at one end; Fix it. Reference numeral 38 is an amateur, which includes a substrate 38a, a suction plate 38b formed by bending the upper side of the substrate 38a to the left, and the substrate 3.
It consists of a balancer plate 38c formed by bending the rear side of the substrate 8a to the right and an action plate 38d formed by bending the front side of this board 38a left and right. The armature 38 is pivotally supported on the holding plate 8 by a support shaft 39 that is fitted into the middle between the side plates 8b of 8. 40 is a hole through which the support shaft 39 formed on the balancer plate 38c and the action plate 38d of the armature 38 is inserted, and 41 is a hole through which the support shaft 39 formed on the side plate 8b of the holding plate 8 is inserted. 42 is an amateur spring spring, which has a winding portion 42a.
is inserted between the balancer plate 38c and the action plate 38d by a support shaft 39 and held, one end 42b is hooked on the lower side of the base plate 38a of the armature 38, and the other end 42c is hooked on the side plate 8b of the holding plate 8, amateur 38
A clockwise spring force is applied to the support shaft 39. Note that clockwise rotation of the armature 38 is controlled by a protruding piece 38 formed at the lower end of the balancer plate 38c.
e comes into contact with the holding plate 8 and stops. 38f is an extruded protrusion formed at the lower end of the action plate 38d of the armature 38;
separate from. 43 is a coil, 44 is a coil frame that holds the coil 43, and 45 is a pot. The horizontal plate 8c is inserted through the pot 45 and fixed. The pot 45 has a bottomed cylindrical cylinder 45a with a return spring 45b and a movable iron core 45c installed inside the cylinder 45.
a is closed by a head 45d.
Incidentally, brake oil or the like is put in the cylinder 45a.
The head 45d of this pot 45 faces the suction plate 38b of the armature 38. 46 is a cylinder 45a of a pot 45 formed on the horizontal plate 8c.
This is a hole into which the cylinder 45a is fitted and fixed with solder, adhesive, or the like. 47 is coil 4
3 and the movable contact plate 27. 48 is a terminal plate to which the other end 43b of the coil 43 is connected, and is fitted into a groove 49 formed at the left end of the lower plate 2c of the container body 1 and fixed therein. 50 is a back plate which closes an alarm switch mounting hole 51 formed in the center of the lower plate 2c of the container body 1. To explain the operating state of this constituent mechanical part, Fig. 5a
and b indicates the off state, and the movable contact plate 27 is separated from the fixed contact 35 by the spring force of the opening spring 34, and the support shaft 32 is pressed against the lower end side of the elongated hole 31. However, this rotation is stopped when the left end of the movable contact plate 27 comes into contact with the base plate 8a of the holding plate 8. Further, the operating end 11a of the handle 11 is tilted to the left, and the cam end 11b pulls up the upper end 13a of the trip link 13.
The lower end 13b of the link 18 is pulled up by the upper end 18d, and the stopper piece 13c of the trip link 13
and the connecting plate 18c of the link 18 are in contact with each other, and since the trip lever 22 is applied with a clockwise spring force by the trip lever spring spring 25, the hooking piece 13d of the trip link 13 is attached to the shaft portion 22b of the trip lever 22. It's getting stuck. Further, the armature 38 is applied with a clockwise spring force by the armature spring spring 42, and the stopper piece 38e comes into contact with the holding plate 8 and is stopped. When the handle 11 is tilted to the right from this OFF state, the cam portion 11b pushes down the upper end 13a of the trip link 13, thereby causing the hooking piece 13d of the trip link 13 to move to the trip lever 2.
2, the lower end 13b of the trip link 13 pushes down the upper end 18d of the link 18, and this lower end 18e pushes down the movable contact plate 27, causing it to rotate about the support shaft 32. When the movable contact plate 27 rotates and the movable contact 26 comes into contact with the fixed contact 35, the left end of the movable contact plate 27 is pushed down around the contact point, and the support shaft 32 moves within the elongated hole 31, causing the return spring to release. The spring force of 34 applies contact pressure to the contacts 26 and 35. At this time, a counterclockwise rotational force is applied to the trip link 13 around the stud 19, and a clockwise rotational force is applied to the link 18 around the stud 19, so that the link 18 is in the ON state as shown in FIGS. 6a and b. Stop. That is, with respect to the straight line X connecting the handle pin 10 and the stud 28, the spindle 14 is on the left side and the nail stud 19 is on the right side, and the rotation of the handle 11 is also stopped by the rotational force of the trip link 13.
At this time, the lever portion 22a of the trip lever 22 faces the extrusion projection 38f of the armature 38.
Therefore, by closing the contacts 26 and 35, the terminal board 3
6 - Fixed contact 35 - Movable contact 26 - Movable contact plate 2
7-braided wire 47-coil 43-terminal plate 48 and current flows therethrough. Furthermore, when this current becomes an overcurrent such as a short circuit current or an overload current, the magnetic flux generated in the coil 43 moves the movable iron core 45c to the head 45d.
The suction force that suctions the suction plate 38b of the armature 38 of the pot 45 is strengthened, and finally the suction plate 38b of the armature 38 is suctioned. When the armature 38 is sucked, the extrusion protrusion 38f pushes the lever part 22a of the trip lever 22, rotates the shaft part 22b, releases the hook 13 of the trip link 13, and rotates the trip link 13 counterclockwise. occurs, resulting in the situation as shown in Figures 7a and 7b. Furthermore, the handle 11 is reversed to the left by the handle spring spring 17, and the movable contact plate 27 is further rotated in the opening direction by the return spring 34, returning to the state shown in FIGS. 5a and 5b.

These structural mechanical parts are housed in the space 1a of the container body 1, and the pair of covers 2 constituting the container body 1 are temporarily fixed with the fixtures 4 and fixed with the studs 3. This can be done using the fixture 4, which reduces the amount of unraveling of the vessel 1 once assembled and facilitates assembly. For example, as shown in FIG.
When installing the vessels 1 by temporarily fixing them with the fixtures 4 and installing them by inserting the studs 3 that connect the vessels 1 together, it is difficult to assemble the vessels 1 because there is a considerable amount of loosening of the vessels 1. becomes extremely easy.

Incidentally, although an overcurrent relay is used in the embodiment, the present invention is not limited to this.

As described above, the present invention has a container body 1 in which a space 1a for storing structural mechanical parts is formed by combining a pair of covers 2 each having one opening facing each other, and a groove 7b formed in a side plate 2a of this cover 2. , 7b, and a connecting piece 4c having a screw hole 6 that connects the two end pieces 4a, 4b.
Through holes 5a, 5b formed in communication with both end pieces 4a, 4b of this fixture 4 and both covers 2, 2,
2f, and a connecting tool 3 that passes through 2f, temporary fixation can be performed by attaching the fitting 4 to the combined vessel 1, and once combined the vessel 1 is less likely to come apart, making assembly easier. At the same time, there is an effect that the connecting tool 3 can fix the container body 1 and the fixture 4 to which the electrical equipment is attached can be fixed all at once.

[Brief explanation of the drawing]

Figures 1 to 8 show an embodiment of the present invention, in which Figure 1 is a perspective view from above on the right side, Figure 2 is an exploded perspective view of Figure 1, and Figure 3 is an exploded perspective view of Figure 2. FIG. 4 is a right side view of a cross section of the main part, FIG. 5 shows the off state, FIG. 6 shows the on state, FIG. 7 shows the trip state, and FIGS. In FIG. 7, a is a front view with the cover removed, b is a cross-sectional view of the main part, and FIG. 8 is a right side view of the cross-section of the main part when a large number of parts are connected. 1... Vessel, 2... Cover, 2a... Side plate, 2
f...Hole, 3...Tack, 4...Fixing tool, 4a and 4b...End piece, 4c...Connecting piece, 5a and 5b
... hole, 6 ... screw hole, 7b ... groove.

Claims (1)

[Scope of utility model registration request] A container body in which a pair of covers with one opening are combined to face each other to form a space for storing structural parts inside, both end pieces that fit into grooves formed in the side plate of this cover, and screws connecting these both end pieces. An electrical device consisting of a fixture that holds both U-shaped covers with connecting pieces having holes, and a connector that is inserted through through holes formed in communication with both end pieces of the fixture and the two covers. Body equipment.