JPH04102566U - electrical connection terminal - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] To provide an electrical connection terminal that can improve the end treatment of the core wire when the connection wire is crimped to the electrical connection terminal. [Configuration] Electrical connection part 1 for fitting and connecting one side to the other side
Covered crimping piece 13 for crimping the connecting wire 14 to the other side.
In the electrical connection terminal 11, in which a wire attachment portion formed by a and a core wire crimping piece 13b is integrally formed by bending a punched conductive thin sheet metal, when the connecting wire 14 is crimped to the core wire crimping piece 13b. A spring-up prevention protrusion 16 is provided which extends substantially horizontally toward the electrical connection portion 12 side adjacent to the core wire and suppresses the spring-up of the core wire end from above.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention improves the end treatment of the core wire when crimping the connecting wire to the electrical connection terminal. This invention relates to electrical connection terminals that can be

0002

[Conventional technology]

The object of this invention is to bend a punched conductive thin sheet metal and The electrical connection part that fits into the connection part and the wire attachment part that crimps the connecting wire are integrated. The electrical connection part is connected to the mounting hole of the printed circuit board or the other electrical Fit the electrical connection terminal of the electrical connection terminal, etc. to the mating connection part, and if necessary, This is an electrical connection terminal that is used by being housed in a housing.

0003 For example, as shown in the electrical connection terminal 1 in Figure 8, it is necessary to attach the printed circuit board that is the mating connection. An electrical connection part 2 for fitting into a mounting hole is formed on one side, and a connecting wire 4 is formed on the other side. This is an electrical connection terminal that is integrally formed with an electric wire attachment part 3 for crimping. The wire attachment portion 3 of the electrical connection terminal 1 is formed by punching and folding a conductive thin sheet metal. Covering crimping piece 3a and core wire crimping piece 3 each having a U-shaped cross section by bending and forming. b is provided, and the sheathing portion 4a of the connecting wire 4 is connected to the core wire on the sheathing crimp piece 3a. The core part 4b of the connecting wire 4 is attached to the crimping piece 3b with the anvil of an automatic crimping machine (not shown). Each is held in a crimped state by a crimper. Note that the wire attachment part 3 is A stopper 3c for preventing over-insertion is provided protruding from the bottom side of the covering and crimping piece 3a.

0004 Further, the electrical connection portion 2 of the electrical connection terminal 1 includes a semi-cylindrical protrusion piece 2a and the protrusion piece. 2a has a flexible structure that branches from the rear end side and protrudes to the left and right in a tapered shape that widens at the end. 9 and 10, the projecting piece 2a is penetrated into the mounting hole 5a of the printed circuit board 5, and the retaining lance 2b is inserted into the mounting hole 5a of the printed circuit board 5. When inserting through the attachment hole 5a, the diameter is once reduced and then expanded to form the back side of the printed circuit board 5. Locked to the surface.

[0005] When the electrical connection part 2 is passed through the mounting hole 5a as described above, the core of the wire mounting part 3 is With the wire crimping piece 3b fitted into the mounting hole 5a, the electrical connection terminal 1 is attached to the printed board. The electrical connection terminal 1 is fixed to the printed circuit board 5 by soldering. It will be worn.

[0006]

[Problem that the idea aims to solve]

However, in the conventional electrical connection terminal 1 as described above, it is difficult to connect to the core wire crimp piece 3b. When the core wire portion 4b of the electric wire 4 is crimped and gripped, the electrical connection portion is removed from the core wire crimp piece 3b. The tip side of the core wire portion 4b protruding toward the second side springs up, causing irregularities. For this , when installing it on the printed circuit board 5, it may be difficult to insert it into the mounting hole 5a, or the mounting After landing, the raised part may come into contact with other live parts adjacent to it, causing a short circuit accident. There was a risk of rubbing it. Therefore, the present invention proposes an electrical connection that can solve the problems of these conventional technologies. The purpose is to provide terminals.

[0007]

[Means to solve the problem]

The gist of this invention is to connect an electrical connection part that is fitted and connected to the other side on one side, and an electric connection part that is connected to the other side. The wire attachment part is made up of a wire crimping piece and a core wire crimping piece. In electrical connection terminals that are integrally formed by bending thin sheet metal, the above-mentioned core wire When the connecting wires are crimped, each crimp piece extends approximately horizontally toward the adjacent electrical connection part. The electric wire is equipped with a spring-preventing protrusion that suppresses the spring-up of the core wire terminal from above. This is an air connection terminal.

[0008]

【Example】

The present invention will be explained in detail below based on illustrated embodiments. The electrical connection terminal 11 according to this embodiment is similar to the electrical connection terminal 1 according to the conventional example described above. It has all the configurations. That is, as shown in Fig. 1, the electrical connection terminal 11 is fitted into the mounting hole of the printed circuit board An electrical connection part 12 is formed on one side, and a connecting wire 14 is crimped on the other side. A wire attachment portion 13 is integrally formed.

[0009] The wire attachment portion 13 has a covering portion 14a of the connecting wire 14 as shown in FIGS. 2 to 4. The coated crimp piece 13a crimp-grips the core wire portion 14b of the connecting wire 14. The core wire crimping pieces 13b each have a U-shaped cross section, and the covering crimping pieces 1 A stopper 13c for preventing over-insertion is provided protruding from the bottom side of 3a. In addition, a printed circuit board 15 is attached to the electrical connection part 12 as shown in FIGS. 5 and 6. A semi-cylindrical plunger piece 12a penetrates through the hole 15a, and a semi-cylindrical plunger piece 12a penetrates through the mounting hole 15a. A flexible retaining lance 12b that is locked to the back surface of the printed circuit board 15 is a protruding piece 1. It is formed protrudingly on the rear end side of 2a.

0010 In addition to the above-mentioned configuration, there is also a spring-up prevention protrusion 16 as a configuration unique to the present invention. is provided. This spring-up prevention protrusion 16 is provided at each upright position of the core wire crimping piece 13b. The electrical connection terminals 11 are arranged so as to protrude from the respective parts toward the adjacent electrical connection parts 12. It is formed integrally with the core wire crimping piece 13b during the punching process, and is connected to the anvil and the crimping piece 13b. When the connecting wires 14 are crimped by The core wire is extended in a shape and is attached to the upper surface of the core wire end protruding from the core wire crimping piece 13b. , so press down from above to prevent the end of the core wire from springing up.

[0011] Therefore, the electrical connection terminal 11 is attached to the printed circuit board 15 as shown in FIGS. 5 and 6. When installing, the electrical connection part 12 can be easily and reliably penetrated into the mounting hole 15a. At the same time, after installation, the core wire terminal may come into contact with other live parts adjacent to it, causing a short circuit accident. The fear of causing this is also eliminated. In addition, by providing this spring-up prevention protrusion 16, Therefore, when the connecting wire 14 is crimped, the core wire portion 1 is attached to the electrical connecting terminal 11. The tolerance for positioning accuracy of 4b has increased, so even if the positioning accuracy is somewhat rough, the necessary pressure can be maintained. You can get clothes. Furthermore, this spatter prevention protrusion 16 prevents the solder from coming out during soldering. Since it is easy to apply, the bond between the core wire crimping piece 13b and the printed circuit board 15 is also strong.

0012 Next, another embodiment of the present invention will be described with reference to FIG. This embodiment uses conventionally known male electrical connection terminals (tabs) 21 used in pairs. This is applied to a female electrical connection terminal (receptacle) 31. This male electrical connection terminal 21 has an electrical connection portion of a female electrical connection terminal 31 on one side. The electrical connection part 22 is fitted and connected to the electrical connection part 32, and the electrical connection part 22 is connected to the electrical connection part 32. The wire attachment part 23 connects the sheathing crimp piece 23a that crimply holds the sheathing part 24a and the core wire part 24b. It is integrally formed by a core wire crimping piece 23b that is crimped and gripped. Further, the female electrical connection terminal 31 has an electrical connection portion of the male electrical connection terminal 21 on one side. 22, and the other side has an electric connection part 32 to which a connecting wire 34 is crimped. The wire attachment part 33 presses and holds the sheathing part 34a between the sheathing crimping piece 33a and the core wire part 34b. It is integrally formed by a core wire crimping piece 33b that is crimped and gripped.

[0013] The wire attachment portion 23 of the male electrical connection terminal 21 has a core wire crimping piece 23b. A spring-up prevention protrusion 26 extends from the female electrical connection terminal 3 toward the electrical connection portion 22 side. The wire attachment portion 33 of No. 1 has a wire crimping piece 33b to the electrical connection portion 32 side to prevent it from springing up. A stop protrusion 36 is provided in a protruding manner. Each of these spring-up prevention protrusions 26, 36 As in the case of the spring-up prevention protrusion 16 in the embodiment described above, during the punching process, It is molded integrally with the core wire crimping pieces 23b and 33b, and the anvil and the crimper When the connecting wires 24 and 34 are crimped by The core wire ends extend substantially horizontally and protrude from the core wire crimping pieces 23b, 33b. It is applied to the upper surface to prevent the core wire from springing up from above.

[0014] This may cause the core wire terminal to come into contact with other live parts adjacent to it, causing a short circuit accident. Also, when crimping the connecting wires 24, 34, the electrical connection terminals 21, 3 The tolerance for positioning accuracy of the core wire portions 24b, 34b with respect to 1 is increased, and the positioning accuracy is improved. Even if the surface is made somewhat rough, the necessary crimp can be obtained.

[0015]

[Effect of the idea]

As is clear from the above examples, the spring on the core part of the crimped connecting wire The electrical connection terminal of the present invention provided with the anti-corrosion protrusion provides the following effects. First, an electrical connection terminal that fits and connects the electrical connection part to the mounting hole of the printed circuit board; In addition, even in the case of a pair of male and female electrical connection terminals that are mated and connected to each other, the core wire terminal This reduces the risk of short circuits caused by contact with other live parts adjacent to the Tolerance of positioning accuracy of the core wire relative to the electrical connection terminal when crimping the connecting wire Even if the positioning accuracy is somewhat rough due to the increased degree of pressure, the necessary crimping can be obtained. Also, especially the electrical connection end that fits and connects the electrical connection part to the mounting hole of the printed circuit board. In the case of a child, the electrical connections can be easily and securely attached to the printed circuit board. Not only can it be passed through the hole, but it also makes it easier for the solder to adhere when soldering. The bond between the core wire crimping piece and the printed circuit board is also strengthened.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a state in which a connecting wire is crimped to an electrical connecting terminal according to an embodiment of the present invention.

FIG. 2 is a perspective view of an electrical connection terminal according to an embodiment of the present invention.

FIG. 3 is a plan view of an electrical connection terminal according to an embodiment of the present invention.

FIG. 4 is a side view of an electrical connection terminal according to an embodiment of the present invention.

FIG. 5 is a plan view of the electrical connection terminal according to the embodiment of the present invention in use.

FIG. 6 is a side view of the electrical connection terminal according to the embodiment of the present invention in use.

FIG. 7 is a perspective view of an electrical connection terminal in use according to another embodiment of the present invention.

FIG. 8 is a perspective view of a conventional electrical connection terminal in which a connecting wire is crimped.

FIG. 9 is a plan view of a conventional electrical connection terminal in use.

FIG. 10 is a side view of a conventional electrical connection terminal in use.

[Explanation of symbols]

11, 21, 31 Electrical connection terminal 12, 22, 32 Electrical connections 12a Plunging piece 12b Locking lance 13, 23, 33 Wire attachment part 13a, 23a, 33a Covered crimp piece 13b, 23b, 33b Core wire crimping piece 13c Stopper to prevent over-insertion 14, 24, 34 Connection wire 14a, 24a, 34a Covering part 14b, 24b, 34b Core wire part 15 Printed circuit board 15a Mounting hole 16, 26, 36 Spring-up prevention protrusion

Claims (1)

[Scope of utility model registration request] Claim 1: A punched conductive thin sheet metal is formed by bending an electrical connection part to be fitted and connected to the other side on one side, and an electric wire attachment part made of a covered crimping piece and a core wire crimping piece to crimp the connecting wire on the other side. In the electrical connection terminal integrally formed, the core wire crimping pieces each extend substantially horizontally toward the adjacent electrical connection portion when the connecting wire is crimped, and prevent the core wire ends from springing up from above. An electrical connection terminal characterized by having a protrusion that prevents it from popping up.