JP3010295U - Eyelet - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide an eyelet that can be easily attached to a printed circuit board without using a caulking machine and can temporarily fix an inserted electronic component. [Structure] An eyelet D fixed to a printed circuit board 4 is integrated with an insertion hole 2 into which a lead wire 5 of an electronic component 5a is inserted, a flange portion 1 provided at an end of the insertion hole 2, and the flange portion 1. And a plurality of elastic tongues 3 formed so as to surround the insertion hole 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electrical connection terminal, and more particularly to an eyelet which is a connection terminal used when attaching a lead wire of an electronic component to a printed board.

[0002]

[Prior art]

 Conventionally, an eyelet T having a structure in which a flange portion 8 is attached to one end surface of a cylindrical body portion 9 as shown in FIG. 3 has been proposed.

The method of using the eyelet T is as follows. First, the cylindrical body portion 9 of the eyelet T is inserted into the round hole 4a formed in the printed substrate 4 as shown in FIG. 3 (a), and the caulking machine 10 is inserted as shown in FIG. 3 (b). Then, the lower end 9a of the cylindrical body portion 9 exposed from the back surface of the printed circuit board 4 is swaged, and then the lead wire 5 of the electronic component 5a is inserted as shown in FIG. As shown in (d), the electronic component 5a and the eyelet T are soldered 11 to the printed board 4.

[0004]

[Problems to be solved by the device]

 However, in the above-mentioned conventional eyelet, after inserting the eyelet T into the printed board 4, the eyelet T is swaged by the caulking machine 10 so as not to fall off from the round hole 4a. Therefore, it has to be fixed, so that the work is time-consuming and time-consuming, and there is a drawback that an expensive caulking machine is required.

In addition, when the printed circuit board 4 is moved after the lead wire 5 of the electronic component 5a is inserted into the eyelet T, there is a drawback that the electronic component 5a falls off from the printed circuit board 4 due to vibration. It was

The present invention has been made in view of the above drawbacks, and an object of the present invention is to mount an eyelet on a printed circuit board without using a caulking machine and insert the eyelet into the eyelet. It aims to provide an eyelet that can temporarily fix parts.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the eyelet according to the present invention comprises an eyelet for fixing to a printed circuit board, an insertion hole for inserting a lead wire of an electronic component, a collar portion provided at an end of the insertion hole, and It is characterized in that it is constituted by a plurality of elastic tongue pieces which are integrally formed with the collar portion and are provided so as to surround the insertion hole. Alternatively, the tongue piece is bent in a substantially V-shape to form a bent portion, and the bent portion and the collar portion are configured to sandwich the printed circuit board. Further, the tip ends of the plurality of tongues sandwich the lead wire of the electronic component inserted in the insertion hole. Further, a slit is provided between the tongues. It is characterized by

[0008]

[Action]

 When the eyelet according to the present invention is inserted into the round hole formed in the printed circuit board, the bent portion of the tongue abuts against the round hole of the printed circuit board, so that the tongue is displaced toward the center of the insertion hole. To do. When the bent portion penetrates the round hole of the printed circuit board, the bent portion expands and eventually the printed circuit board is sandwiched between the bent portion and the collar portion, and the eyelet is fixed to the printed circuit board.

When the lead wire of the electronic component is inserted into the insertion hole of the eyelet in this state, the lead wire is inserted so as to widen the tip portion of the tongue piece, so that the electronic component is fixed to the eyelet. At this time, since the tongue piece is expanded by inserting the lead wire, the eyelet is more firmly fixed to the printed circuit board. In this state, the electronic components are securely fixed to the printed circuit board, so even if the printed circuit board is moved, the electronic parts will not drop off from the printed circuit board due to vibration, and the electronic parts can be easily placed on the printed circuit board. Can be fixed.

[0010]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing an embodiment of an eyelet of the present invention, and FIG. 2 is a diagram showing a procedure for assembling electronic components.

In the figure, D is an eyelet of the present invention, and 4 is a printed circuit board having a round hole 4b for fixing the eyelet D. The eyelet D according to the present invention is formed integrally with the circular insertion hole 2 into which the electronic component is inserted, the disk-shaped flange portion 1 provided at the end of the insertion hole 2, and the flange portion 1. It is composed of a plurality of (for example, four) tongue pieces 3 having elasticity. The tongue pieces 3 are bent in a substantially V-shape to form a bent portion 3b, and the bent portion 3b is projected outward. Is forming. Further, since the tip portion 3a of the tongue piece 3 is bent toward the center, the lead wire (terminal) 5 of the electronic component 5a can be held. Further, slits 7 are provided between the tongues 3 in order to facilitate the movement of the four tongues 3.

When the eyelet D configured as described above is inserted into the round hole 4a provided on the printed circuit board 4, the bent portion 3b provided on the tongue piece 3 abuts on the round hole 4a of the printed circuit board 4, so that the tongue The piece 3 shifts toward the center. Eventually, when the bent portion 3b penetrates the round hole 4a of the printed circuit board 4, the bent portion 3b expands, and the printed circuit board 4 is sandwiched between the bent portion 3b and the collar portion 1, and the eyelet D is attached to the printed circuit board 4. Fixed.

When the lead wire 5 of the electronic component 5a is inserted into the insertion hole 2 of the eyelet D in this state, the lead wire 5 is inserted while the tip portion 3a of the tongue piece 3 is widened. It is fixed to Tomé D. At this time, since the tongue piece 3 is expanded by inserting the lead wire 5, the eyelet D is more firmly fixed to the printed board 4. In this state, the lead wire 5 is securely fixed to the printed circuit board 4, so that even if the printed circuit board 4 is moved, the electronic component 5a does not drop off from the printed circuit board 4 due to vibration, and the electronic component 5a is printed. It can be easily fixed on the substrate 4.

Reference numeral 6 is a solder for soldering the lead wire 5 of the electronic component 5 a and the tip 3 a of the eyelet D to the pattern on the printed board 4. Although four tongue pieces 3 are provided in the present invention, more tongue pieces 3 may be provided.

[0015]

[Effect of device]

 Since the eyelet according to the present invention is configured as described above, it is possible to temporarily fix the electronic component on the printed circuit board with a simple structure and to assemble it without crimping, so special equipment is also required. No, the cost will be reduced.

[Brief description of drawings]

1A is a plan view of an embodiment according to the present invention, FIG. 1B is a bottom view of FIG. 1A, and FIG. 1C is FIG.
It is an AA sectional view of (a).

2 (a) is a state diagram of inserting the eyelet shown in FIG. 1 into a printed circuit board, FIG. 2 (b) is a state diagram of inserting electronic parts into the eyelet shown in FIG. 1, and FIG. It is a soldering state figure of the eyelet shown in FIG.

FIG. 3 (a) is a state diagram of a conventional eyelet insertion state, FIG. 3 (b) is a state diagram of crimping the eyelet shown in FIG. 3 (a),
FIG. 3C is a state diagram of inserting the electronic component after crimping the eyelet shown in FIG. 3A, and FIG. 3D is a soldering state diagram of the electronic component shown in FIG. 3C.

[Explanation of symbols]

 D Eyelet 1 Collar 2 Insertion hole 3 Tongue 3a Tip of tongue 3b Bent of tongue 4 Printed circuit board 5 Lead wire 5a Electronic component 6 Solder 7 Slit

Claims (4)

[Scope of utility model registration request] 1. An eyelet for fixing to a printed board, an insertion hole for inserting a lead wire of an electronic component, a flange portion provided at an end portion of the insertion hole, and the flange portion are integrally formed, and An eyelet comprising a plurality of elastic tongues provided so as to surround the insertion hole. 2. The tongue piece is bent in a substantially V-shape to form a bent portion, and the bent portion and the collar portion sandwich the printed circuit board. Eyelet described. 3. The eyelet according to claim 1, wherein the tip ends of the plurality of tongues sandwich the lead wire of the electronic component inserted in the insertion hole. 4. The eyelet according to claim 1, wherein a slit is provided between the tongue pieces.