JPH024426Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is installed between a line (electric line, transmission line) and electrical equipment connected to it, and a plug device containing an electric element can be freely attached. The present invention relates to a jack board device for inserting the electrical element into the middle of a line, or separating the line side from the electrical equipment side.

(b) Conventional technology There is a gap between the line and the electrical equipment connected to it.
Overvoltage protection devices are installed on power lines to protect the lines and electrical equipment from undesired high voltages. This overvoltage protection device consists of a plug-in device that houses a protection element that protects connected equipment from undesired high voltages and high currents that enter from the line, and a plug-in device that can be attached or removed from the line as desired. It also includes a jack board device for cutting the track.

The present invention relates to a jack disk device among these, and a conventional jack disk device of this type is that of Utility Model Publication No. 52-45131. This device uses multiple terminals that are integrally formed with a terminal piece that connects to the line, a jack spring piece that comes into contact with the plug of the plug-in device to be attached, and a conductor piece that connects them. , Attach the conductor pieces of these terminals to the insulating base, protrude the terminal pieces of the opposing terminals outward from both sides of the insulating base, and bring the ends of the jack spring pieces into contact with each other to attach the terminals to the insulating base. It is placed inside the jack hole.

Another conventional technique uses a plurality of terminals in which a terminal piece, a jack spring piece, and a conductor piece are formed separately, and the tip of the jack spring piece comes into contact between two opposing terminal parts. There is a device that is mounted on an insulating base in this way and uses the elasticity of the conductor piece to mechanically and electrically connect the terminal piece and the jack spring piece.

(c) Problems to be solved by the invention Regarding the former of the above conventional jack panel devices,
The terminal is made by pressing a metal plate into a terminal piece,
Since the jack spring piece and the conductor piece are integrally formed, there is a problem in that the thickness of each part of the terminal, which has a different function, is constant, which causes an inconvenience. That is, for example, if the plate thickness is made to match the jack spring piece, the strength of the terminal piece will be insufficient, which is particularly problematic when the terminal piece is attached with screws. In addition, since each part of the terminal is integrated, there is a drawback that the press mold and the like are complicated.

In addition, in the latter of the above-mentioned conventional jack panel devices, each part of the terminal is manufactured separately, which increases the number of parts, making assembly work troublesome and increasing the cost of the product. Since the connection is made by utilizing the elasticity of the conductor piece interposed between the two, there are problems such as the electrical reliability is not necessarily high.

The present invention solves the above-mentioned conventional problems, and allows so-called metal fittings such as terminals and jack spring pieces to be made of appropriate plate thickness and material so that the functions of these parts can be fully demonstrated. Provides a jack panel device that can reduce the cost of molds for metal fittings by simplifying the shape and reducing the number of parts, and also improves the reliability of connections and improves assembly workability. The purpose is to

(d) Means for Solving the Problems In order to solve the above problems, the jack panel device of the present invention has terminal piece arrangement parts formed on both sides, and jack holes arranged vertically in the center. an insulating base made of an insulating material and horizontally provided with a plurality of hole grooves which are formed on both sides of the jack hole and connect the jack hole and each of the terminal piece arrangement portions at both ends; A terminal made of a conductive metal member having a terminal piece part to be connected and a conductor piece part connected to the terminal piece part, a slit formed at the tip of the conductor piece part, and a contact part formed on one end side. and a jack spring piece made of an elastic conductive metal member with a protrusion formed on the other end.
A plurality of sets are arranged in the jack hole of the insulating base with their contact parts in contact with each other, and the conductor piece of the terminal is inserted into the hole groove of the insulating base to open the slit. Fit into the protrusion of the above jack spring piece,
The terminal piece portion of the terminal is arranged in the terminal piece portion placement portion of the insulating base.

(E) Effect According to the present invention, the metal fittings are constituted by a terminal in which the terminal piece and the conductor piece are integrated, and a jack spring piece that is separate from the terminal, and the terminal and the jack spring piece are each made up of a terminal and a conductor piece. The plate thickness and material can be selected to suit the requirements, and by configuring the metal fittings in two pieces, the mold is simpler than if they were all integrated.

Furthermore, place the jack spring pieces in the jack hole of the insulating base with their contact parts touching each other, insert the conductor piece of the terminal into the hole groove of the insulating base, and open the slit provided at the tip. By fitting the protrusions on the jack spring piece, the metal fittings can be easily fixed to the insulating base and assembled, and the conductor piece and jack spring piece are securely connected by fitting their slits and protrusions. will be done.

(F) Embodiments Examples of the present invention will be described below with reference to the drawings. In FIGS. 1 to 5, 1 is a jack panel device according to the present invention, and 50 is a plug device that is attached to the jack panel device 1 and accommodates, for example, a protector, a transformer, a relay, a timer, etc.

The configuration of the jack board device 1 will be explained in detail below.

The jack board device 1 includes an insulating base 2, a plurality of terminals 21A, 21'A, 21B, 21'B, a plurality of jack springs 28, and the like.

The insulating base 2 has a substantially trapezoidal shape and is made of an insulating material with good moldability such as phenolic resin, and has a plurality of recessed parts on both sides in the longitudinal direction, which are arranged in two stages and have a partition wall 3 between them. A terminal piece arrangement portion 4 is formed. It should be noted that among the terminal piece arrangement portions 4, the one at the center of the lower stage is for a ground terminal. Since screw terminals are arranged in each of these terminal piece arrangement parts 4, a nut mounting recess 5 and a screw clearance hole 6 following the nut mounting recess are formed on the upper surface thereof. Also, the insulation base 2
A hole 7 for accommodating a jack spring piece for a ground terminal is drilled in the center from the bottom side, and on both sides of the hole 7, a hole 8 with a large width is provided with a step 10a in the middle from the top side.
A plurality of jack holes 10 are formed in which two small-width holes 9 are formed, and projecting edges 11 are formed on the upper edges of the small-width holes 9. Further, locking holes 12, 12 are formed on both sides of the jack hole 10 in the longitudinal direction of the base, for locking a bent locking portion 31 at the other end of the jack spring piece 28 at its edge. Furthermore, the jack hole 10 of the insulating base 2
A plurality of hole grooves 13 are provided horizontally on both sides of the jack hole 10, connecting the top of the stepped portion 10a of the jack hole 10 and the plurality of terminal piece arrangement portions 4 on both sides. A hole groove 14 is provided horizontally connecting the part arrangement part 4 and the jack part spring piece receiving hole 7.

15 is a screw insertion hole for mounting the jack board device 1; 16 is a recess for arranging a display plate 17 with a predetermined display for distinguishing the terminals of the terminal piece arrangement portion 4; and 18 is a plug. A jack hole into which the ground terminal 51 of the device 50 is inserted; 19 is a mounting screw 52 which fixes the plug device 50 to the jack panel device 1;
This is the insertion hole.

The metal fittings fixed to the insulating base 2 use terminals 21A, 21'A, 21B, 21'B and jack spring pieces 28, as shown in FIG. 5 and FIGS. 7 to 9. .

The terminals have different shapes depending on whether they are arranged on the upper or lower stage of the terminal piece arrangement section 4 of the insulating base 2, and are symmetrical in shape at the left and right positions of the same stage.

The terminals 21A and 21'A shown in FIG. 8 are arranged in the upper terminal piece arrangement part 4, and include a terminal piece part 23 with a screw insertion hole 22 and a conductor connected thereto. a conductor piece 24;
A slit 25 is formed at the tip of the slit 25, and a guide portion 26 is formed at the tip of the slit 25. Further, the terminals 21B and 21'B shown in FIG. 9 are arranged in the lower terminal piece part arrangement part 4, and the conductor part 24 is formed in an L shape including a rising part 24a. The configuration is the same as that of the terminals 21A and 21'A.

The jack spring piece 28 has a contact portion 30 formed at the tip of an inverted U-shaped plug receiving portion 29 at one end, a protrusion 32 formed at a linear connecting portion 31 at the other end, and a bent locking portion at the tip. 33 is formed.

Then, the jack spring pieces 28 are made into a set of two, and the contact portions 30 of the jack spring pieces 28 are brought into contact with each other to open the jack hole 10.
The plug receiving portion 29 is placed on the stepped portion 10a, one end thereof is locked to the protruding edge portion 11, and the bent locking portion 33 is locked to the locking hole 12.
Further, the conductor pieces 24 of the two terminals 21A, 21'A and the two terminals 21B, 21'B are inserted into the respective predetermined hole grooves 13 of the insulating base 2, and the slits 25 at the tips thereof are inserted. It fits into the protrusion 32 of the jack spring piece 28, and the four terminals 21A, 21'A, 21B,
The terminal piece portion 23 of 21'B is placed in the terminal piece placement portion 4.

This terminal piece part 23 has a nut 36 arranged in the mounting recess 5 of the terminal piece part arrangement part 4, and a screw 39 is screwed to the nut 36 with a washer 37 and a spring washer 38 interposed therebetween, so that it functions as a screw terminal. configured.

Further, reference numeral 40 designates a ground terminal plate, in which an L-shaped jack spring piece 41 is placed in the housing hole 7 and is inserted into the hole groove 14, and terminal piece parts 43, 43 are provided with screw insertion holes 42, 42 at both ends. Place the screws 39 and nuts 36 in the terminal piece placement area 4 at the center of the lower row on both sides.
etc., to form a screw terminal.

44 is the plug device 5 at the ground terminal plate 40.
a screw hole for screwing the mounting screw 52 of 0;
Reference numerals 45 and 45 indicate holes through which the mounting screws of the jack board device 1 pass.

In addition, terminals 21A, 21'A, 21B, 21'B
Each terminal piece portion 23 is not limited to a screw terminal.

(g) Effects of the invention As stated above, the jack panel device of the invention has the following effects:
Since the conductive metal fittings used consist of terminals and jack spring pieces, it is possible to select the appropriate plate thickness and material for each of these parts to fully demonstrate its function.
Furthermore, by simplifying the shape of the metal fittings and reducing the number of parts, the metal fittings can be made cheaper.
Furthermore, the jack spring piece is arranged in the jack hole of the insulating base, the conductor piece of the terminal is inserted into the hole groove, and the slit of the conductor piece is fitted with the protrusion of the jack spring piece. is fixed to the insulating base and assembled, and the jack spring piece and the terminal are fitted and connected, which has the effect of improving assembly work efficiency and improving the reliability of the connection part.

[Brief explanation of the drawing]

Figure 1 is a plan view of the jack disk device equipped with a plug device, Figure 2 is a side view of the same, and Figure 3 is the first
4 is a sectional view taken along line BB of FIG. 1, FIG. 5 is an exploded perspective view of the entire structure, FIG. 6 is an explanatory diagram of the connections between terminals and jack spring pieces, and FIG. is a perspective view of the jack spring piece, and FIGS. 8 and 9 are perspective views of the terminal. 1...Jack panel device, 2...Insulating base, 4...
...Terminal piece arrangement part, 10...Jack hole, 13...
...Hole groove, 21A, 21'A, 21B, 21'B...
Terminal, 23...Terminal piece part, 24...Conductor piece part, 2
5...Slit, 28...Jack spring piece, 30
...Contact part, 32...Protrusion.

Claims (1)

[Scope of utility model registration request] Terminal piece arrangement portions are formed on both sides, jack holes are formed in the center in a vertical direction, and the jack holes and the terminal piece arrangement portions on both sides respectively correspond to each other on both sides of the jack hole. It has an insulating base made of an insulating material horizontally provided with a plurality of holes connecting the lines, a terminal piece part connected to the line, and a conductor piece part connected to the terminal piece part. It consists of a terminal made of a conductive metal member with a slit formed at its tip, and a jack spring piece made of an elastic conductive metal member with a contact portion formed on one end and a protrusion on the other end. A plurality of sets of two terminals are arranged in the jack hole of the insulating base with their contact parts in contact with each other, and the conductor piece of the terminal is inserted into the hole groove of the insulating base. A jack board device in which a slit is fitted into a protrusion of the jack spring piece, and a terminal piece portion of the terminal is arranged in a terminal piece portion arrangement portion of the insulating base.