JP3410985B2 - Continuous terminal mounted on the base - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique of a continuous terminal formed into a connector integrated with a case. More specifically, the shape of the continuous terminal is improved so that the continuous terminal can be easily cut off after molding.

[0002]

2. Description of the Related Art As a conventional technique for fixing terminals by resin molding, for example, one shown in FIG. 4 is generally used. In this structure, the continuous terminal 2 having the bridging portion 21 and the shoulder portion 28 as shown in FIG. 4A is stamped and produced from a plate material by a press, and as shown in FIG.
Is molded and fixed to the base 12. After that, continuous terminal 2
The bridging part 21 of FIG.
As shown in (C), an independent terminal was manufactured by cutting and electrically disconnecting the continuous terminal 2.

[0003]

However, in the above-mentioned conventional technique, the bridging portion 21 and the shoulder portion 28 for electrically disconnecting the continuous terminal 2 are provided, but the bridging direction is the bridging direction. The cross-sectional dimension of the portion 21 is, for example, a vertical length (L) of about 3 mm and a plate thickness (t) of 1 mm, which requires a large cutting force. Therefore, since the area of the shoulder portion 28 of the continuous terminal 2 that is in contact with the die 6 that receives the cutting force is a small plate thickness portion of the material, distortion occurs due to crushing or buckling of the shoulder portion 28 during cutting, and It sometimes gave damages such as cracks and caused deterioration of the terminal holding strength. Also,
The bridging portion 21 is often not completely cut to generate burrs, which is a cause of poor insulation between terminals.

Further, if the bridging portion 21 is narrowed to facilitate cutting, the alignment of the continuous terminals 2 is deformed by a slight external force before the base 12 is molded, and it becomes difficult to insert the continuous terminal 2 into the molding die. Standardized and high quality continuous terminals 2
I couldn't.

The present invention is to solve the above-mentioned problems, and in order to facilitate cutting of the bridging portion 21 of the continuous terminal 2 as in the embodiment of FIG. 1, the continuous terminal 2 is connected to the upper connection terminal. The portion 23, the lower connection terminal portion 24, the overlapping bent portion 22 that is folded and overlapped at substantially the center, and the bridging portion 21 that connects the overlapping bent portions 22 to each other are fixed to the base 12. The present invention provides a continuous terminal mounted on a base.

[0006]

In order to solve the above-mentioned problems, the present invention is as follows. First, the invention according to claim 1 is fixed to the base 12, and the upper connection terminal portion 23 and the lower connection terminal are provided. Portion 24 and overlapping bent portion 22 formed by folding and folding in a substantially central portion
And a continuous terminal 2 including a bridge portion 21 connecting the overlapping bent portions 22 to each other, and the bridge portion 21 is cut and separated to provide a continuous terminal attached to a base. .

The invention according to claim 2 is the same as claim 1
In the invention described above, the continuous terminal mounted on the base according to claim 1 is characterized in that the bridging portion 21 of the overlapping bent portion 22 is completely cut.

The invention according to claim 3 is the same as claim 1
In the described invention, the bridging portion 21 of the overlapping bent portion 22 is
The continuous terminal mounted on the base according to claim 1, wherein one end is cut and a bent residual piece 26 is provided at the other end.

According to a fourth aspect of the present invention, in the power window switch, the continuous terminal 2 is simultaneously formed in the connector 11 integrated with the case 1, and the continuous terminal 2 has an upper connection terminal portion 23 and a lower connection terminal portion. 24, a continuous terminal made up of an overlapping bent portion 22 that is folded and folded substantially in the center, and a bridging portion 21 that connects the overlapping bent portions 22 to each other, and the bridging portion 21 is cut and separated. A continuous terminal mounted on a base is provided.

[0010]

1 to 3 are views showing an embodiment of the present invention. Hereinafter, in order to clarify the present invention, its configuration will be described with reference to the drawings. 1 in the drawing is a case, 1
1 is a connector, 12 is a base, 2 is a continuous terminal, 21 is a bridging portion, 22 is an overlapping bent portion, 23 is an upper connecting terminal portion, 2
4 is a lower connection terminal portion, 25 is a cut surface, 26 is a bent residual piece,
27 is a V groove, 3 is a printed circuit board, 4 is an electronic component, and 7 is an operation knob. Each of these configurations will be described below.

First, the case 1 is made by resin molding in which the connector portion 11 and the base 12 are integrated.
A continuous terminal 2 is molded and fixed to the terminal 2 at the same time.
The continuous terminal 2 includes an upper connection terminal portion 23, a lower connection terminal portion 24 arranged coaxially therewith, and a continuous terminal 2
It is composed of an overlapping bent portion 22 formed by projecting in a right angle direction and being folded and overlapped at a substantially center thereof, and a bridging portion 21 connecting the overlapping bent portions 22 to each other. The continuous terminal 2 is embedded in the base 12 and fixed, and then the bridging portion 21 is cut to make each connection terminal independent.

An embodiment will be described below with reference to FIG. FIG. 1A is a perspective view showing the shape of the continuous terminal 2. The upper connection terminal portion 23 and the lower connection terminal portion 24 are coaxially aligned with each other, and the upper connection terminal portion 23 is further provided with a printed circuit board. The stress at the time of connecting 3 and the stress at the time of attaching / detaching the external connector to / from the lower side connecting terminal portion 24 can be controlled by the overlapping bending portion 22 formed by folding the continuous terminal 2 in a substantially perpendicular direction and projecting at a right angle. The overlapping bent portion 22 is absorbed by converting
Also absorbs the impact when the bridging portion 21 connecting the continuous terminals 2 is cut. Further, the continuous terminals 2 are connected by a plurality of bridging portions 21 before being embedded and molded in the base 12 so as to facilitate storage and automatic production. FIG. 1B is a perspective view showing the shape of the second embodiment of the continuous terminal 2. The V groove 27 is formed on the upper surface of the bridging portion 21 to form the base 12 and then the base 12 is easily cut. 12 is not distorted.

FIG. 1 (c) shows a base 12 having the structure shown in FIG. 1 (a).
2 shows a state in which the continuous terminal 2 is fixed by resin molding, the bridging portion 21 is exposed in the horizontal direction from the resin molding portion of the base 12, and the bridging portion 21 is cut in the plate thickness direction (t) and for cutting. Since the driving directions of the jigs are the same, it is possible to easily cut. FIG.1 (d) has shown the Example which cut | disconnected the bridge part 21 of the continuous terminal 2, and the bridge part 21 was completely cut | disconnected,
The cut surface 25 becomes visible. In FIG. 1E, one end of the bridging portion 21 of the continuous terminal 2 is cut and the tip shape of the punch 5 is slanted so that the bent residual piece 26 remains at the other end. Unlike complete cutting, the bridging portion 21 does not scatter, and the cause of short circuit between terminals can be eliminated.

FIG. 2 is a view showing a state in which the bridging portion 21 of the continuous terminal 2 is cut by a press die in the continuous terminal according to the present invention. FIG. 2 (a) illustrates the cutting of the bridging portion 21. It is a diagram showing a connector 11, a base 12, and a continuous terminal 2.
The case 1 formed by simultaneously molding is placed in the die 6, and the bridging portion 21 can be cut by moving the punch 5 in the direction of the arrow. FIG. 2B is an explanatory view of a state in which the bridge portion 21 is bent,
FIG. 1E shows the punch 5 and the die 6 at the time of bending shown in FIG. 1E. The overlapping bent portion 22 is placed on the die 6, and the die 5 is not present at the bridging portion 21. Bridge part 2
1 can be bent by pressing.

FIG. 3 is a diagram showing an embodiment in which a continuous terminal according to the present invention is applied to a power window switch. Figure 3
FIG. 3A is a cross-sectional view, and is a cross-section taken along the arrow AA of the plan view of FIG. The printed circuit board 3 including the electronic component 4 and the operation knob 7 can be easily inserted into the continuous terminal 2.

[0016]

EFFECTS OF THE INVENTION In a continuous terminal molded in a connector integrated with a case, an overlapping bent portion projecting at a right angle is provided substantially at the center of a lower connecting terminal portion, and the continuous terminal is formed in the overlapping bent portion. By providing the bridging portion that connects the two to each other, the cutting direction of the bridging portion matches the plate thickness direction (t) of the material, so that an excessive cutting force is not required. Therefore, at the time of cutting the bridging portion, stress is not transmitted to the base, a crack is not generated, and the base strength is not deteriorated. Further, since the bridging portion can be easily cut, distortion or burrs do not occur on the cut surface, and the cause of insulation failure can be eliminated.

Further, even if the vertical length of the bridging portion is increased, the cutting direction is the thickness direction so that the cutting is easy and the alignment of the continuous terminals can be maintained. Therefore, the continuous terminals can be automatically inserted into the forming die. However, the manufacturing efficiency can be improved.

Further, the stress at the time of connecting a printed circuit board having an electronic component incorporated in the upper connecting terminal portion and the stress at the time of attaching / detaching an external connector to / from the lower connecting terminal portion are converted and absorbed by the overlapping bending portions. It does not damage the base and the surrounding area. As described above, it is possible to provide a continuous terminal mounted on a highly reliable base.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention,
(A) is a perspective view which shows the shape of Example 1 of a continuous terminal. FIG. 6B is a perspective view showing the shape of the continuous terminal according to the second embodiment. FIG. 1C is a perspective view showing a state where the continuous terminal of FIG. 1A is fixed to the base. (D) is a perspective view showing Example 3 in which the bridge portion of the continuous terminal is cut.
(E) is a perspective view showing Example 4 in which the other end of the bridging portion of the continuous terminal is bent.

FIG. 2 is a cross-sectional view showing a state in which a bridging portion of a continuous terminal is cut by a press die in the continuous terminal according to the present invention,
(A) is sectional drawing which shows the form which cut | disconnects a bridge part.
(B) is a perspective view showing a state in which the bridge portion is bent.

FIG. 3 is a diagram showing an embodiment in which a continuous terminal according to the present invention is applied to a power window switch, FIG.
A sectional view (b) taken along line A-A of FIG.

FIG. 4 is a diagram showing a structure of a continuous terminal according to a conventional technique, and FIG. 4A is a perspective view of the continuous terminal. FIG. 7B is a perspective view in which a continuous terminal is fixed to the base. (C) is a perspective view showing a form in which a bridging portion of the continuous terminal is cut.

[Explanation of symbols]

1 case 2 continuous terminals 3 printed circuit boards 4 electronic components 5 punches 6 dice 7 Operation knob 11 connectors 12 base 21 Bridge 22 Overlap part 23 Upper connection terminal 24 Lower connection terminal 25 cut surface 26 Folded pieces 27 V groove 28 Shoulder

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H01R 43/16 H01R 13/405 H01R 23/02

Claims (4)

(57) [Claims] 1. An upper connection terminal portion (23) fixed to a base (12), a lower connection terminal portion (24), and an overlapping bent portion (22) formed by folding the upper connection terminal portion (24) at approximately the center. Attached to a base characterized by comprising a continuous terminal (2) consisting of a bridging portion (21) connecting the overlapping bent portions (22) to each other, the bridging portion (21) being cut and separated. A continuous terminal. 2. The continuous terminal mounted on a base according to claim 1, wherein the bridging portion (21) of the overlapping bent portion (22) is completely cut. 3. The invention according to claim 1, wherein the bridging portion (21) of the overlapping bent portion (22) has one end cut off and a bent remaining piece (26) at the other end. A continuous terminal attached to the base. 4. A continuous terminal (2) is simultaneously molded in a connector (11) integrated with a case (1) in a power window switch, the continuous terminal (2) being an upper connecting terminal portion (23) and a lower side. A connecting terminal portion (24), an overlapping bent portion (22) formed by folding and overlapping at a substantially central portion, and the overlapping bent portion (2
2) A continuous terminal mounted on a base, comprising a continuous terminal composed of a bridging portion (21) connecting the two to each other, the bridging portion (21) being cut and separated.