JP4809204B2 - Clamper terminal - Google Patents

Description

  The present invention relates to a clamper terminal for clamping and connecting a wire, and in particular, a clamper terminal used for clamping and connecting a plurality of wires having different wire diameters such as signal wires and power supply wires to communication equipment and measuring equipment. About.

  FIG. 5 is a diagram showing a clamper terminal according to the prior art. In a clamper terminal 501, which is also called a conventional screwless terminal, a structure in which a wire 511 is connected by a clamp is formed between a plate-like electrode 503 and a copper plate electrode 503 and a spring plate 504 such as a steel plate in a housing 502. The wire 511 is clamped and fixed to the electrode 503 to be connected. When the push button 506 is pressed when the wire 511 is fixed to the electrode 503, the space between the copper plate electrode 503 and the spring plate 504 is widened. The wire 511 is inserted between them, and then the push button 506 is released, the copper plate is released. By narrowing the gap between the electrode 503 and the spring plate 504, the wire 511 is clamped between the electrode 503 of the copper plate and the spring plate 504 to be fixed and connected to the electrode 503. Therefore, the wire 511 can be easily connected as compared with a screw terminal that fixes and connects the wire 511 to the electrode 503 by screwing. Therefore, the clamper terminal is also called a screwless terminal.

  However, in principle, the number of wire rods that can be connected to one terminal is one. For this reason, in order to connect two or more (plural) wire rods having different wire diameters to one terminal, two or more wire rods are crimped to one crimping terminal having a rod-shaped tip, and then the crimping terminal is connected to one electrode. Or connecting a plurality of wire rod introduction portions with different wire diameters to one electrode corresponding to one terminal via the wire introduction portion. This complicates the terminal structure.

  Also, when using crimp terminals, in order to crimp multiple wires to the crimp terminals, it is necessary to match the wire diameter size of the wire in terms of the structure of the crimp terminals, and crimp wires with different wire diameters to one crimp terminal. It is difficult to do.

  In principle, the clamper terminal according to the prior art can connect only one wire to one terminal, but the clamper terminal prepared for communication equipment and measuring equipment must connect two or more wires to one terminal. It may not be possible.

  In this case, if the wire diameter of the wire to be connected is the same, a plurality of wires can be connected to one terminal by using the crimp terminal as described above, but the crimp terminal and the crimp tool must be prepared in advance. Don't be.

  Further, when a plurality of wire rods having different wire diameters are connected to the clamper terminal, it is necessary to prepare a relay terminal or the like because the crimp terminal cannot be used as described above. However, the relay terminal cannot be used if there is no space for installation.

  As described above, a clamper terminal for connecting a plurality of wires having different wire diameters without providing a relay terminal or the like has a plurality of wire introduction portions for accommodating wires having different wire diameters for one electrode corresponding to one terminal. It must be provided individually or must be provided with a plurality of terminals, and therefore the structure of the terminals is complicated.

  In the clamper terminal according to the prior art, since the shape of the spring plate holding the wire to the electrode is a single plate, when connecting a plurality of wires having different wire diameters, a wire with a small wire diameter is applied to the electrode with the spring plate. There is a problem that it cannot be suppressed.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide a clamper terminal having a simple structure capable of connecting a plurality of wire rods having different wire diameters with a single clamper terminal.

The clamper terminal according to the present invention that achieves the above object is a clamper terminal for clamping a plurality of wire rods, an electrode to which the plurality of wire rods are connected, and a spring plate having a comb-shaped tip for pressing the plurality of wire rods And when the plurality of wires are inserted between the electrode and the spring plate, the wire moves against the spring force of the spring plate and expands between them, and is pressed against the electrode by the spring plate and connected. A clamp assisting member that moves in a direction to narrow the space by the spring force of the spring plate, the electrode is a rod-shaped member, and the spring plate is comb-shaped with a body portion that houses the clamp assisting member. And a tip portion, and is formed in a conical shape having the electrode as a central axis .

Further, the clamper terminal according to the present invention is a clamper terminal for clamping a plurality of wire rods, the electrode to which the plurality of wire rods are connected, and an integrated structure with the electrode, and a tip that holds the plurality of wire rods is combed. When the two spring plates and the plurality of wire rods are inserted between the two spring plates, the spring plates are moved against the spring force of the spring plates so as to widen the gap between the plurality of wire rods. And a clamp assisting member that moves in a direction to narrow the gap between the two spring plates when connected to the electrode by the spring force of the spring plate.

The clamper terminal according to the present invention is a clamper terminal that clamps a plurality of wires, and is electrically connected to the plurality of wires, and is formed around a rod-like electrode, around the electrode, and has a tip. Conical and comb-shaped with the electrode at the center, and can move in a direction to widen between the electrode and the spring plate against the spring force of the spring plate and the spring plate that holds the plurality of wires And a clamp assisting member that narrows the space between the electrode and the spring plate by the spring force of the spring plate.

  According to the present invention, since the tip of the spring plate is comb-shaped, if one wire is fixed to one or a plurality of comb-shaped spring plates, a plurality of wires having different wire diameters are fixed to one terminal. Even so, the tip of the spring plate is divided into combs, and the opening between each spring plate (the portion corresponding to the teeth of the comb) and the electrode is determined according to the wire diameter of each wire. A plurality of wire rods having different wire diameters can be fixed and connected to one terminal by being bitten by a spring plate or a plurality of spring plates and individually holding onto the electrode.

According to the present invention, a plurality of wire rods having different wire diameters can be connected to one terminal of the clamper terminal, so that the following effects can be obtained as compared with the conventional clamper terminal.
-A rod-shaped crimping terminal and its crimping tool are not required, and accordingly, a wire processing operation for crimping the wire to the crimping terminal is not required, and an effect of cost reduction can be obtained.
・ A relay terminal is not required and a relay cable is not required. As a result, the terminal mounting space can be reduced and the cost can be reduced.
In addition, by integrating the separated electrodes and the spring plate, it is possible to reduce the number of parts of the terminal, and thus reduce the occurrence of manufacturing defects.

  FIG. 1 is a view showing a clamper terminal according to a first embodiment of the present invention, (A) is a perspective view showing a state before fixing the wire to the terminal, and (B) to (D) are wires. It is a perspective view which shows the step which fixes to a terminal.

  In the following description of the first to third embodiments, for convenience, FIGS. 1 to 3 (A) to (D) show only one wire, but FIGS. 1 to 3 (A) to (D). The clamper terminals (hereinafter simply referred to as terminals) 1, 101, 201 shown in FIG. 1) fix a plurality of wire rods 11, 111, 211 having different wire diameters therein.

  A terminal 1 shown in FIG. 1A is accommodated in a housing 2. As shown in FIGS. 1A to 1D, the terminal 1 fixes a plurality of wire rods 11 having different wire diameters between the electrode 3 housed in the housing 2 and the comb-like spring plate 4. It is. A lead wire 5 is connected to the electrode 3. The push button 6 which is a clamp auxiliary member is an introduction portion for inserting the wire 11 between the electrode 3 and the spring plate 4. The spring plate 4 is widened by pushing and the spring plate 4 is narrowed by releasing the push. Chew. The housing 2 is placed on the surface of the printed circuit board 7, and the lead wires 5 of the electrodes 3 penetrate the printed circuit board 7 and are usually soldered on the back surface of the printed circuit board 7.

  In the embodiments described below, the electrode and / or spring plate may be formed using a metal such as copper or steel, but using a beryllium copper alloy made by adding several percent beryllium to copper. What was shape | molded is preferable. This is because beryllium copper alloy combines high strength comparable to special steel and excellent spring property while making use of the good properties of copper, and is optimal as a conductive spring material.

  FIG. 1B shows a state immediately before the wire 11 is fixed between the electrode 3 in the housing 2 of the terminal 1 and the spring plate 4 and the wire 11 and the electrode 3 are connected. The electrode 3 and the spring plate 4 are preferably installed in the housing 2 so as to cover the electrode 3 made of a beryllium copper plate with the spring plate 4 having a comb-like tip.

  FIG. 1C shows a state in which the wire 11 is inserted into the housing 2 of the terminal 1. When the wire 11 is connected to the electrode 3, by pushing a clamp auxiliary member (hereinafter referred to as “push button”) 6, the comb-like spring plate 4 is expanded, and the electrode 3 and the spring plate in the housing 2 of the terminal 1. The wire 11 can be inserted between the four.

  Thereafter, when the push button 6 is released, the push button 6 returns to its original position by the spring force of the spring plate 4, and the comb-like spring plate 4 presses the wire 11 to the biting electrode 3 and connects.

  FIG. 1D shows a state in which the wire 11 is connected to the electrode 3 in the housing 2 of the terminal 1. When the push button 6 is released, the push button 6 returns to the original position due to the spring force of the spring plate 4, and the comb-like spring plate 4 presses the wire 11 against the electrode 3 to press the wire 11 and the electrode 3. Is connected. Since the comb-like spring plate 4 has a portion where the wire 11 is pressed against the electrode 3, the wire rods 11 having different wire diameters can be connected by the maximum number of the comb-like spring plates 4. Further, since the wire 11 is held by the edge of the spring plate 4, it does not come off easily.

  When the wire 11 is removed from the terminal 1, the push button 6 is pushed in so that the wire 11 pushed into the electrode 3 by the spring plate 4 becomes free and can be removed from the terminal 1.

  2A is a cross-sectional view of the terminal 1 shown in FIG. 1B cut along a plane P. FIG. 2B shows the terminal 1 shown in FIG. It is the figure seen from. As shown in FIG. 2A with the housing 2 omitted, the wire 11 is inserted between the electrode 3 and the spring plate 4, is bitten by the spring plate 4, is pushed into the electrode 3 by the spring plate 4, It is electrically connected to the printed circuit board 7 through the electrode 3 and the electrode lead 5.

  As shown in FIG. 2B, the plurality of wires 11-1, 11-2, and 11-3 are pushed into the electrode 3 by the spring plate 4 and connected to the electrode 3. The spring plate 4 includes a main body portion 41 that accommodates a push button (not shown) and a comb-shaped tip portion 42. Although the wire diameters of the wire rods 11-1 and 11-2 are the same, the wire rod 11-3 is different from the wire rods 11-1 and 11-2 in that the wire rod 11-3 has a comb-shaped tip portion of the spring plate 4 with respect to one wire rod. 42 is pushed in by the board divided into two. Thus, according to the first embodiment of the present invention, a plurality of wires having different wire diameters can be fixed to the terminal. Further, the tip portion 42 of the spring material 4 is divided according to the size of the wire diameter of the wire 11. The distal end portion 42 is preferably divided on a one-to-one basis with respect to the wire diameter of the wire 11, and when the wire diameter of the wire 11 is larger than the section width of the distal end portion 42, it is appropriately divided into two, three, etc. The wire 11 is fixed to the terminal using a plurality of sections.

  FIG. 3 is a view showing a clamper terminal according to a second embodiment of the present invention, (A) is a perspective view showing a state before the wire is fixed to the terminal, and (B) to (D) show the wire. It is a perspective view which shows the step which fixes to a terminal.

  A terminal 101 shown in FIG. 3A is accommodated in the housing 102. As shown in FIGS. 3A to 3D, the electrode 103 made of rod-shaped copper accommodated in the housing 102 is placed so as to cover a conical spring plate 104 having a comb-like tip. The terminal 101 fixes a plurality of wires 111 having different wire diameters between the electrode 103 accommodated in the housing 102 and the comb-shaped spring plate 104. A lead wire 105 is connected to the electrode 103. The push button 106 is an introduction portion for inserting the wire 111 between the electrode 103 and the spring plate 104, and the spring plate 104 is expanded by pushing, and the spring plate 104 is narrowed by releasing the push to bite the wire 111. The housing 102 is placed on the surface of the printed circuit board 107, and the lead wire 105 of the electrode 103 penetrates the printed circuit board 107 and is usually soldered on the back surface of the printed circuit board 107.

  FIG. 3B shows a state immediately before the wire 111 is fixed between the electrode 103 in the housing 102 of the terminal 1 and the spring plate 104 and the wire 111 and the electrode 103 are connected. The electrode 103 and the spring plate 104 are preferably installed in the housing 102 so that the electrode 103 made of a beryllium copper plate is covered with a spring plate 104 having a comb-like tip.

  FIG. 3C shows a state where the wire 111 is inserted into the housing 102 of the terminal 101. When connecting the wire 111, the push-button 106 is pushed to spread the conical spring plate 104 and the wire 111 between the electrode 103 in the housing 102 of the terminal 101 and the spring plate 104. Can be inserted.

  Thereafter, when the push button 106 is released, the push button 106 returns to its original position by the spring force of the spring plate 104, and the comb-like spring plate 104 presses the wire 111 to the bit electrode 103 and connects.

  FIG. 3D shows a state in which the wire 111 is connected to the electrode 103 in the housing 102 of the terminal 101. When the push button 106 is released, the push button 6 returns to the original position by the spring force of the spring plate 104, and the comb-like spring plate 104 presses the wire 111 against the electrode 103 and presses the wire 111 and the electrode 103. Is connected. Since the comb-shaped spring plate 104 has a portion for pressing the wire material 111 against the electrode 103, the wire material 111 having different wire diameters can be connected to the tip portion of the comb-shaped spring plate 104 by the maximum number. Further, since the wire rod 111 is held by the edge of the spring plate 104, it does not easily come off.

  When the wire 111 is removed from the terminal 101, the push button 106 is pushed in so that the wire 111 pushed into the electrode 103 by the spring plate 104 becomes free and can be removed from the terminal 101. Further, by forming the comb-shaped spring plate 104 into a conical shape, the spring plate 104 is arranged on the circumference, which is suitable when a space cannot be secured in the longitudinal direction as compared with the terminal 1 of the first embodiment. is there.

  FIG. 4 is a view showing a clamper terminal according to a third embodiment of the present invention, (A) is a perspective view showing a state before the wire is fixed to the terminal, and (B) to (D) are wires. It is a perspective view which shows the step which fixes to a terminal.

  A terminal 201 shown in FIG. 4A is accommodated in a housing 202. As shown in FIGS. 4A to 4D, the electrode 203 made of copper accommodated in the housing 202 is not a structure in which the spring plate 204 is separated, but the material of the electrode 203 and the comb-like spring plate 204 is used. Made of beryllium copper and integrated structure. Thereby, the contact resistance between the wire 211 and the electrode 203 becomes small. The terminal 201 fixes a plurality of wire rods 211 having different wire diameters between the electrode 203 accommodated in the housing 202 and the comb-shaped spring plate 204. A lead wire 205 is connected to the electrode 203. The push button 206 is an introduction portion into a space where the wire 211 is sandwiched between the spring plates 204, and the spring plate 204 is widened by pushing, and the spring plate 204 is narrowed by releasing the push to engage the wire 211 with the spring plate 204. . The housing 202 is placed on the surface of the printed circuit board 207, and the lead wire 205 of the electrode 203 penetrates the printed circuit board 207 and is usually soldered on the back surface of the printed circuit board 207.

  The structure of the terminal 201 is such that the electrode 203 and the comb-shaped spring plate 204 are made of the same material, for example, beryllium copper, so that the number of members constituting the terminal 201 is reduced, and defects in manufacturing the terminal 201 are caused. Can be reduced. Also, the connecting structure of the wire 211 is not to press and connect the wire 211 to the electrode (copper plate) 203 with the spring plate 204 but to connect the wire 211 with the two spring plates 204 that are opposed to each other. The wire can be held by one edge, and the holding force of the wire is stronger than that of the terminal 1 according to the first embodiment. Therefore, the contact failure between the wire and the electrode in the terminal 201 is reduced.

  FIG. 4B shows a state immediately before the wire 211 is sandwiched and fixed between the two spring plates 204 in the housing 202 of the terminal 201 and the wire 211 and the electrode 203 are connected. The electrode 203 and the spring plate 204 are installed in the housing 202 so that the two spring plates 204 whose tips are comb-shaped are covered with the electrode 203 preferably made of a beryllium copper plate.

  FIG. 4C shows a state in which the wire 211 is inserted into the housing 202 of the terminal 201. When connecting the wire 211 to the electrode 203, the comb-like spring plate 204 can be spread by pushing the push button 206, and the wire 211 can be inserted between the two spring plates 204 in the housing 202 of the terminal 201.

  Thereafter, when the push button 206 is released, the push button 206 returns to the original position by the spring force of the spring plate 204, and the wire 211 is held between the two comb-like spring plates 204 and pressed. The wire 211 is connected to the electrode 203 that is integral with the spring plate 204.

  4D shows a state in which the wire 211 is sandwiched between two comb-shaped spring plates 204 in the housing 202 of the terminal 201 and connected to the electrode 203. FIG. When the push button 206 is released, the push button 206 returns to the original position due to the spring force of the spring plate 204, and the two comb-shaped spring plates 204 engage the wire 211 and press the wire 211 against the spring plate 204. . Thereby, the electrode 203 connected to the spring plate 204 and the wire 211 are connected. Since the comb-shaped spring plate 204 has a portion that presses the wire 211, the wire 211 having different wire diameters can be connected by the maximum number of the comb-shaped spring plates 204. Further, since the wire 211 is held by the edge of the spring plate 204, it does not easily come off.

  When the wire 211 is removed from the terminal 201, the push button 206 is pushed in so that the wire 211 sandwiched between the two spring plates 204 becomes free and can be removed from the terminal 201.

(Appendix 1)
In the clamper terminal that clamps multiple wires,
An electrode to which the plurality of wires are connected;
A spring plate having a comb-shaped tip for holding the plurality of wires;
When the plurality of wires are inserted between the electrode and the spring plate, the wire moves against the spring force of the spring plate in a direction to widen the space, and is pressed and connected to the electrode by the spring plate A clamp auxiliary member that moves in a direction to narrow the space by the spring force of the spring plate;
A clamper terminal characterized by comprising: (1)

(Appendix 2)
The electrode is a flat plate,
The spring plate includes a main body portion for accommodating the clamp auxiliary member and a comb-shaped tip portion, and is formed into a flat plate parallel to the electrode.
The clamper terminal according to appendix 1. (2)

(Appendix 3)
The electrode is a rod-shaped member,
The spring plate includes a main body portion for accommodating the clamp auxiliary member and a comb-shaped tip portion, and is formed into a conical shape with the electrode as a central axis.
The clamper terminal according to appendix 1. (3)

(Appendix 4)
In the clamper terminal that clamps multiple wires,
An electrode to which the plurality of wires are connected;
Two spring plates that are integrated with the electrode and have a comb-shaped tip that holds the plurality of wires,
When the plurality of wire rods are inserted between the two spring plates, the wire rods move in a direction to widen against the spring force of the spring plates, and the plurality of wire rods are sandwiched between the two spring plates. A clamp auxiliary member that moves in a direction to narrow the space by the spring force of the spring plate when connected to the electrode;
A clamper terminal characterized by comprising: (4)

(Appendix 5)
The electrode comprises a copper material;
The clamper terminal according to any one of appendices 1 to 4.

(Appendix 6)
The spring plate comprises a copper material;
The clamper terminal according to any one of appendices 1 to 5.

(Appendix 7)
The electrode comprises a beryllium copper alloy;
The clamper terminal according to any one of appendices 1 to 4.

(Appendix 8)
The spring material comprises a beryllium copper alloy;
The clamper terminal according to any one of Supplementary Notes 1 to 4 or Supplementary Note 7.

(Appendix 9)
The tip of the spring material is divided according to the wire diameter of the wire,
The clamper terminal according to any one of appendices 1 to 8.

(Appendix 10)
The tip of the spring material is divided into one-to-one according to the wire diameter of the wire.
The clamper terminal according to any one of appendices 1 to 8.
(Appendix 11)
The plurality of wires include wires having different wire diameters,
The clamper terminal according to any one of appendices 1 to 10. (5)

It is a figure which shows the clamper terminal which concerns on 1st Embodiment of this invention, (A) is a perspective view which shows the state before fixing a wire to a terminal, (B)-(D) fixes a wire to a terminal. It is a perspective view which shows the step which carries out. (A) is sectional drawing which cut | disconnected the terminal shown to (B) of FIG. 1 by the plane P, (B) is the figure which looked at the terminal shown to (B) of FIG. 1 from the spring board side. It is a figure which shows the clamper terminal which concerns on 2nd Embodiment of this invention, (A) is a perspective view which shows the state before fixing a wire to a terminal, (B)-(D) fixes a wire to a terminal. It is a perspective view which shows the step which carries out. It is a figure which shows the clamper terminal which concerns on 3rd Embodiment of this invention, (A) is a perspective view which shows the state before fixing a wire to a terminal, (B)-(D) fixes a wire to a terminal. It is a perspective view which shows the step which carries out. It is a figure which shows the clamper terminal by a prior art.

Explanation of symbols

1, 101, 201 Terminal 2, 102, 202 Housing 3, 103, 203 Electrode 4, 104, 204 Spring plate 5, 105, 205 Electrode lead 6, 106, 206 Clamp auxiliary member (push button)
7, 107, 207 Printed circuit board 11, 11-1, 11-2, 11-3, 111, 211 Wire rod 41 Main body 42 Front end

Claims (5)

In the clamper terminal that clamps multiple wires,
An electrode to which the plurality of wires are connected;
A spring plate having a comb-shaped tip for holding the plurality of wires;
When the plurality of wires are inserted between the electrode and the spring plate, the wire moves against the spring force of the spring plate in a direction to widen the space, and is pressed and connected to the electrode by the spring plate A clamp auxiliary member that moves in a direction to narrow the space by the spring force of the spring plate;
Equipped with a,
The electrode is a rod-shaped member,
The clamper terminal according to claim 1, wherein the spring plate includes a main body portion for accommodating the clamp auxiliary member and a comb-shaped tip portion, and is formed in a conical shape having the electrode as a central axis . In the clamper terminal that clamps multiple wires,
An electrode to which the plurality of wires are connected;
Two spring plates that are integrated with the electrode and have a comb-shaped tip that holds the plurality of wires,
When the plurality of wire rods are inserted between the two spring plates, the wire rods move in a direction to widen against the spring force of the spring plates, and the plurality of wire rods are sandwiched between the two spring plates. A clamp auxiliary member that moves in a direction to narrow the space by the spring force of the spring plate when connected to the electrode;
A clamper terminal characterized by comprising: A clamper terminal for clamping a plurality of wires,
An electrode that is electrically connected to the plurality of wires and has a rod shape;
A spring plate formed around the electrode, the tip of which is conical and comb-shaped around the electrode, and holds down the plurality of wires;
Clamp assist that is movable in a direction that widens the space between the electrode and the spring plate against the spring force of the spring plate, and that narrows the space between the electrode and the spring plate by the spring force of the spring plate A clamper terminal comprising a member. 4. The clamper terminal according to claim 3, wherein the spring plate has a main body portion for accommodating the auxiliary clamp member and a comb-shaped tip portion. 4. The clamper terminal according to claim 3, wherein the plurality of wires include wires having different wire diameters.

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