JPH0545029Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a conductive connection device, and more specifically, a bent base of a narrow conductive plate, usually called a bus bar, is inserted into a slit provided in a projecting wall of an insulating base. This invention relates to a connection device that prevents bent pieces of a narrow conductive plate from being deformed by external force or accidentally shifting when held together.

[Prior Art] Conventionally, there is a connector housing for making electrically conductive connections as described in, for example, Japanese Utility Model Publication No. 10306/1983.

In this conventional technology, in a connector housing that accommodates a plurality of female bipolar terminals that are provided by fitting one side into a plurality of male terminals arranged in parallel, a connector housing is provided inside a frame body that opens upwardly and downwardly and perpendicularly to the longitudinal side wall. A partition wall is provided to form a plurality of terminal accommodating chambers, and an inclined guide surface is formed on the left and right side walls of the frame body and a lower edge of the partition wall, and the lower end of the partition wall is positioned on the inner and outer sides that do not match the lower opening end of the frame body. This is a connector housing characterized in that the connector housing is located in the

[Problem to be solved by the invention] In the conventional technology described above, the lid body is screwed to the wiring board while the flange formed protruding from the lower part of the housing is pressed down around the hole in a separately prepared lid plate. The housing is attached to the wiring board.

Therefore, it is necessary to separately prepare a cover plate, which is complicated in terms of parts management and increases costs.
The first problem is that it is difficult to work in narrow or dark places because it requires screwing, and a tool such as a screwdriver is required.

In particular, in this conventional example, the base of the rising part (bent piece) of the narrow circuit board cannot be held down by the bottom surface of the housing, and the top surface of the circuit board away from the base is wired at the bottom of the slanted inner surface of the housing's collar. Since it is in pressure contact with the substrate, there is a second problem in that the rising portion is easily deformed or displaced by external force.

In order to eliminate the above-mentioned problems, this invention involves directly inserting the bent base (rising base) of a narrow conductive plate disposed on the insulating base into a slit formed in the protruding wall of the insulating base. The purpose is to prevent the bending piece from deforming and shifting its position by holding it in place, and also to make the lid plate and its screw fixing unnecessary by locking the locking piece of the heat-resistant cylindrical body to the ridge of the insulating base. shall be.

[Means for Solving the Problems] The purpose of this invention described above is to provide an insulating base made of plastic, a pair of reel edges provided on both sides of the protruding edge of this insulating base, and each terminal end of each of these reel edges. a protruding wall protruding from the surface of the base in the vicinity; an elongated narrow conductive plate partially inserted into a slit in the protruding wall and disposed on the insulating base;
The narrow conductive plate is provided with a bent piece formed substantially parallel between the edges of the rail, a through hole through which the bent piece passes, and a groove that engages with the rail edge, and a locking elastic piece is connected to the edge of the rail. each comprises an insulating cylindrical body that is secured to the edge and attached to the insulating base, and a male engaging body that is provided with a female connecting piece that is inserted into the bent piece within the cylindrical body. This is accomplished by holding the base of the bent piece between the protruding wall and the slit.

[Function] By inserting the base of the bent piece of the narrow conductive plate (bus bar) fixedly arranged on the insulating base into the slit formed in the protruding wall of the insulating base, the base of the bent piece is attached to the protruding wall. The bent piece can be held against the female connecting piece, so that the bent piece will not be unnecessarily deformed or displaced due to external forces such as insertion and removal of the female connecting piece.

When the insulating base is pushed in from the front, aiming at the rail edge and applying the concave groove of the cylinder, the locking piece of the cylinder will be pushed by the pressing stress exerted by the ridge of the insulating base on its lower slope. After the gap narrows while bending against the elasticity, the end face of the locking bullet snaps into the inner surface of the protruding edge of the insulating base as the pushing is continued, and engages elastically, and by one-shot locking. The cylindrical body can be attached to the insulating base in a so-called "cassette pop" style.

In particular, during this mounting, the bent piece of the bus bar is clamped in advance at its base within the slit of the projecting wall as described above, so automatic mounting is facilitated.

Further, by inserting the female connecting piece into the bent piece, the bent piece is further firmly supported and fixed.

[Example] Examples will be described with reference to the drawings.

First of all, the basic structure of this invention is as shown in Figs. 1 and 2. The insulating base 1 is made of plastic and is formed into an approximately shaped cross section, and the protruding edge 2 is connected to the upper part of a pair of notches 3, 3 provided on both sides of the protrusion 2. The rail edges 4 that form a pair,
form 4.

A protruding wall 5 integrally protrudes from the surface of the base 1 near each end of each of these rail edges 4, 4.
For example, an end portion of a narrow conductive plate 6 in the form of an elongated metal strip, which is partially inserted into the slit 5a along one surface and arranged on the insulating base 1, is bent almost parallel between the rail edges 4, 4. A narrow bent piece 7 is provided.

Further, a through hole 8 through which the bent piece 7 is passed is formed as shown in FIG. An insulator is attached to the insulating base 1 as shown in FIGS. 3 and 5 by locking a locking bullet 10 as shown in FIGS. A cylindrical body 11 made of a heat-resistant plastic such as 66 nylon is disposed.

The cylindrical body 11 may be formed with a large through hole 8 as shown in FIG. 12.

A male engaging body 1 is provided with a female connecting piece 12 as shown in FIGS. 3 and 5, which is inserted into the bent piece 7 in this cylindrical body 11 as shown in FIG.
3, respectively, and attach the base 7A of the bent piece 7 to the protruding wall 5 with its slit 5a.
The electrically conductive connection device according to this invention is constructed by sandwiching the parts as shown in FIG. 4 and FIG.

In addition, the part indicated by the reference numeral 17 in each figure is a locking claw for locking the female connecting piece 12 in the male engaging body 13 as shown in FIG. 5, 6 and 7 at the connection part 18.
As shown in the figure, lead-out wires with insulating coatings are electrically connected, and numerals 15 and 16 are convex and concave portions formed on the cylinder body 11 and the male engaging body 13, respectively, as shown in FIG. 1, for regulating the insertion direction. It is.

Furthermore, the cylinder 11 may be cylindrical, and the male engagement body 13 may be correspondingly formed into a hollow cylinder.

In addition, an example has been described in which two narrow conductive plates 6 and two bent pieces 7 are provided, but in each case, one each or a plurality of three or more are provided on an insulating base 1.
The number of female connecting pieces 12 and the shape of the male engaging body 13 and the cylindrical body 11 may be selected in accordance with the number of female connecting pieces 12.

Since the conductive connection device of this invention has the above-described configuration, first, as shown in FIGS. When the locking bullet 10 is pushed in while applying the groove 9 of the cylindrical body 11, the locking bullet 10 bends against the elasticity due to the pressing stress caused by the ridge 2 of the notch 3 applied to the lower inclined surface of the locking bullet 10. Gap 1
9 becomes narrower, the end face of the locking elastic piece 10 is brought into contact with the inner surface of the protruding edge 2 of the insulating base 1 by continuing the above-mentioned pushing.
As shown in the figure, it snaps into elastic engagement,
By one-shot locking, the cylindrical body 11 can be attached to the insulating base 1 in a so-called "cassette-pond" manner as shown in FIGS. 3 and 5.

At the time of this insertion, the base 7 of the bent piece 7 of the narrow conductive plate 6 (bus bar) fixedly arranged on the insulating base 1
A is inserted into the slit 5a formed in the protruding wall 5 of the insulating base 1 as described above, and the second one is inserted into the protruding wall 5.
Since it is clamped in advance as shown in the figure and FIG.
Automatic insertion is also easy.

Even after the above-mentioned insertion, the bent piece 7 remains in the fifth position.
As shown in Fig. 6, the female connecting piece 12 is connected to the cylinder body 1.
It will not be unnecessarily deformed or misaligned due to external force such as when it is inserted or removed within the device.

The narrow conductive plate 6 can be connected to an external circuit via its bent piece 7, female connecting piece 12, and lead wire 14.

The examples shown in FIGS. 8 to 11 show other embodiments of this invention.

First, in the example shown in FIG. 8, the narrow-width conductive plate of the previous embodiment is bent as shown in the figure and laid flat along the surface of the insulating base 1, and the upright portion 6a of the narrow-width conductive plate 6 is attached to the projecting wall 5. This is an example in which the support is inserted into a narrow slit 5a.

Next, in the case shown in FIG. 9, a narrow conductive plate 6 placed flat on an insulating base 1 is bent while remaining flat as shown in the figure, and these flat narrow conductive plates 6 and a bent piece 7 are formed.
This is an example in which the bent base 7A is inserted and supported within the wide and shallow slit 5a of the projecting wall 5.

Furthermore, in the example shown in FIG.
This is an example in which the upright narrow conductive plates 6, 6 and the base 7A of the bent piece 7 are inserted and supported within the narrow slit 5a.

Furthermore, in FIG. 11, when the narrow conductive plates 6, 6 placed flat on the base 1 are bent as shown in the figure, a bent piece 7 is formed.
is made to stand upright, and its base 7A has a narrow slit 5a.
In this example, the narrow conductive plates 6, 6 are supported by being inserted into the wide slit 5a.

Further, in each of the above examples, the insulating base 1 has a cross-sectional shape, but the insulating base 1 is a simple plate-like body as shown in FIG. The protruding edge 2 crossing the portion 3 may be firmly fixed to the back surface of the insulating base 1 either integrally or separately as shown in FIG. 13.

A locking piece 10 that is elastically engaged with the upper part of the projecting edge 2 as shown in FIG. 14 is provided on the lower surface of the cylinder 11 so that the cylinder can 11 may be locked.

In these other embodiments, parts designated by the same reference numerals as those in the basic embodiment indicate parts having the same effect.

Furthermore, the locking bullet piece 10 pushes the cylinder 11 from the back surface of the insulating base 1 against its elasticity.
Since it can be easily removed, it can be easily replaced in the event of a defect.

[Effects of the invention] Since this invention is configured as described above, it produces the effects described below.

Rail edges 4, 4 forming a pair from the front of the insulating base 1
When the cylinder body 11 is pushed in while aiming at the groove 9, the locking bullet piece 10 of the cylinder body is pressed against the elasticity of the pressing stress by the ridge 2 of the insulating base 1 applied to the inclined surface. However, after the gap 19 narrows, as the pushing is continued, the locking bullet 10 comes off from the flange 2 and returns to its original position with a snap, elastically engaging with the 2 surfaces of the flange, and the cylinder is closed by one locking. The body 11 can be attached to the insulating base 1 in a so-called "cassette-pond" manner.

During this installation, the narrow conductive plates 6, 6 and the bent base 7A are inserted and supported in the slit 5a of the projecting wall 5 in advance, so automatic insertion can be easily carried out and the assembly yield can be reduced. There is a first effect, such as improved performance.

In addition, the above-mentioned insertion does not require work such as tightening screws, so no tools such as a screwdriver are required.Furthermore, there is no need for other parts such as a cover plate for fixing the cylinder, so it is easy to work and can be used in narrow spaces. The second effect is that it can be implemented by groping, even in a dark place, and it is advantageous in terms of cost.

In particular, in this invention, the narrow conductive plate 6
The base 7A of the bent piece 7 of the (bus bar) is the insulating base 1
Since the female connecting piece 12 is inserted into the slit 5a formed in the protruding wall 5 and is clamped in advance by the protruding wall 5, the female connecting piece 12 can be easily inserted into and removed from the bent piece. The female connecting piece 12 for the bending piece 7 does not accidentally deform or shift its position.
By inserting the bent piece 7, the bent piece 7 is further firmly supported and fixed, so that the third effect is that the electrical connection can be maintained in good condition for a long period of time.

[Brief explanation of the drawing]

The figures show one embodiment of this invention; Fig. 1 is a perspective view of the insulating base and the narrow conductive plate separated, and Fig. 2 is a cylindrical body with the narrow conductive plate attached to the insulating base. FIG. 3 is a perspective view of the cylindrical body attached to the insulating base with the male engaging body facing forward; FIG. 4 is a vertical sectional side view of the embodiment shown in FIG. 2; The figures are a vertical sectional side view of the embodiment shown in FIG.
9, 10 and 11 are respectively perspective views showing main parts of other embodiments of the narrow conductive plate and insulating substrate, and FIG. 12 is a vertical sectional side view showing another example of the cylindrical body. FIG. 13 is a perspective view showing another example of the insulating base;
FIG. 14 is a longitudinal sectional side view of the cylinder shown in FIG. 13 in which it is inserted and locked into the insulating base. 1... Insulating base, 2... Projection, 3... Notch,
4...Rail edge, 5...Protruding wall, 5a...Slit, 6...Narrow conductive plate, 7...Bent piece, 7A...
Base, 8... Through hole, 9... Concave groove, 10... Locking bullet piece, 11... Cylindrical body, 12... Female connection piece, 13...
...Male engaging body.

Claims (1)

[Scope of utility model registration request] An insulating base 1 made of plastic, a pair of rail edges 4, 4 provided on both sides of the protruding edge 2 of this insulating base 1, and a surface of the base 1 near each end of each of these rail edges 4, 4. A projecting wall 5 and an elongated narrow conductive plate 6 partially inserted into the slit 5a of the projecting wall 5 and disposed on the insulating base 1.
A bent piece 7 is formed on the narrow conductive plate 6 to be substantially parallel between the rail edges 4, a through hole 8 through which the bent piece 7 passes, and a groove that engages the rail edge 4. 9 are formed respectively, and an insulating cylinder 11 is attached to the insulating base 1 by locking the locking elastic pieces 10 to the protrusion 2, and the bending piece 7 is inserted into the cylinder body 11. and a male engaging body 13 provided with a female connecting piece 12, and a base 7A of the bent piece 7 is held between the protruding wall 5 and the slit 5a.