JPH0561962U - Temporary fixing structure of contact terminal to printed circuit board - Google Patents

Abstract

(57) [Abstract] [Purpose] To facilitate soldering, reduce man-hours, prevent connection failure, and improve stability in a structure for temporarily fixing contact terminals to a printed circuit board. In the temporary fixing structure of the contact terminal 3 to the printed circuit board 2, the tip end 11 is elastically deformed by extending integrally from the terminal main body 8 and directed toward the terminal main body 8 side through a bent portion 12 bent in the middle. The terminal portion 10 which is a possible free end is inserted into the through hole 5 of the printed board 2 and is temporarily fixed by the urging force of the tip portion 11.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure for temporarily fixing contact terminals to a printed circuit board, and more particularly to a technique effectively applied to a structure for temporarily fixing contact terminals to a printed circuit board in a stacking manifold block.

[0002]

[Prior Art]

 As a temporary fixing structure of the contact terminal to the printed circuit board of this kind, there is, for example, the following structure.

That is, the structure of temporarily fixing the contact terminals to the printed circuit board is a structure in which two terminal portions extending in an arc shape from the terminal body are inserted into through holes of the printed circuit board and are temporarily fixed by fitting. Is becoming

[0004]

[Problems to be solved by the device]

 However, in the above-mentioned conventional structure for temporarily fixing the contact terminals to the printed circuit board, two terminal portions extending in a round shape from the terminal body are inserted into the through holes of the printed circuit board and temporarily fixed by fitting. Therefore, there is a problem that soldering is difficult and man-hours increase.

Further, there is a problem in that the soldering connects the opening end of the through hole and the terminal, and therefore the connection is insufficient, lacks stability, and causes poor connection.

An object of the present invention is to provide a temporary fixing structure of a contact terminal to a printed board which can facilitate soldering and reduce the number of steps.

Another object of the present invention is to provide a temporary fixing structure of a contact terminal to a printed circuit board, which can prevent a connection failure and improve stability.

The above and other objects and novel features of the present invention will be apparent from the description of this specification and the accompanying drawings.

[0009]

[Means for Solving the Problems]

 The temporary fixing structure of the contact terminal to the printed circuit board of the present invention extends integrally from the terminal main body, is directed toward the terminal main body side through the bent portion that is bent in the middle, and the free end is an elastically deformable end. The terminal part is inserted into the through hole of the printed circuit board and is temporarily fixed by the biasing force of the tip.

[0010]

[Action]

 When temporarily fixing the contact terminal to the printed circuit board, insert the terminal part of the contact terminal into the through hole of the printed circuit board from the bent part, and temporarily fix it by the biasing force of the tip.

When soldering is performed in this temporarily fixed state, the molten solder can easily flow into the through holes, so that soldering can be facilitated and the number of steps can be reduced.

[0012] Since the inner peripheral surface of the through hole and the terminal portion can be connected by soldering, the connection can be ensured, the occurrence of connection failure can be prevented, and the stability can be improved.

Further, since the terminal portion is composed of only one terminal member, the contact terminal can be downsized.

Further, since the end surface of the terminal body can be brought into contact with the printed circuit board, the height of the contact terminal from the printed circuit board can be reduced and the space can be saved.

[0015]

【Example】

 1 is a partial cross-sectional view showing a stacking manifold block having a structure for temporarily fixing contact terminals to a printed circuit board according to an embodiment of the present invention, and FIG. 2 shows a structure for temporarily fixing contact terminals to a printed board of FIG. FIG. 3 is a partial cross-sectional view showing the details of the structure for temporarily fixing the contact terminals to the printed circuit board shown in FIG. 2, and FIG. It is a figure.

A printed circuit board 2 is provided in the stacking manifold block 1, and the printed circuit board 2 has a solenoid circuit of a solenoid valve 4 mounted on the stacking manifold block 1 printed on it. The straight pin header 6, the diode array 7 and the contact terminal 3 are inserted into the through hole 5 of the printed circuit board 2 and electrically connected by soldering.

This embodiment is applied to a temporary fixing structure of the contact terminals 3 to the printed circuit board 2 in the stacking manifold block 1.

That is, the contact terminal 3 includes a terminal body 8, two contacts 9 that are bent at right angles from both sides of the base portion of the terminal body 8 and face each other, and The one terminal portion 10 extending therefrom is integrally formed by pressing a conductive metal plate.

The two contactors 9 are of a pin-socket type, and one or the other of which has a play to follow the movement of the other party at the time of connection, and the plug 13 protruding from the solenoid portion 4 a of the solenoid valve 4. It has a function of inserting and electrically connecting.

The one terminal portion 10 extends integrally from the terminal main body 8 and is directed toward the terminal main body 8 side through a bent portion 12 bent in the middle, and the tip portion 11 serves as an elastically deformable free end. In this structure, such a terminal portion 10 is inserted into the through hole 5 of the printed circuit board 2 and temporarily fixed by the urging force of the tip portion 11.

Next, the operation of this embodiment will be described.

When the contact terminal 3 is temporarily fixed to the printed circuit board 2, the printed circuit board 2 in which the solenoid circuit of the solenoid valve 4 is printed is used, and the through hole 5 of the printed circuit board 2 is provided with the contact terminal 3 of the contact terminal 3. The terminal portion 10 is inserted from the bent portion 12 and temporarily fixed by the biasing force of the tip portion 11.

When soldering is performed in this temporarily fixed state, the molten solder can be easily poured into the through holes 5, so that the soldering can be facilitated and the number of steps can be reduced.

Further, since soldering can be performed by connecting the inner peripheral surface of the through hole 5 and the terminal portion 10, it is possible to secure the connection, prevent the occurrence of connection failure, and improve the stability. be able to.

Since the terminal portion 10 is composed of only one terminal member, the contact terminal 3 can be downsized.

Further, since the lower end surface D of the terminal main body 8 can be brought into contact with the printed circuit board 2, the height H of the contact terminal 3 from the printed circuit board 2 can be reduced and space can be saved. ..

Although the invention made by the present inventor has been specifically described based on the embodiments, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the gist of the invention. Needless to say.

For example, in the above-mentioned embodiment, the case of the contact terminal having the pin-socket type contact has been described, but the present invention is not limited to this, and the present invention can be applied to a contact terminal having a knife blade type contact. it can.

In the above description, the invention made by the present inventor is mainly described as a temporary fixing structure of a contact terminal to a printed circuit board on which a circuit pattern for a solenoid circuit of a solenoid valve is formed, which is the field of application of the invention. However, it can also be applied to a structure for temporarily fixing contact terminals to a printed circuit board on which a circuit pattern for another electronically connected circuit such as a position sensor is formed.

[0030]

[Effect of the device]

 The effects obtained by the typical ones of the inventions disclosed in the present application will be briefly described as follows.

(1). A terminal portion that extends integrally from the terminal body, is directed toward the terminal body side through a bent portion that is bent in the middle, and has a tip portion that is an elastically deformable free end that is a through hole of a printed circuit board. Since the structure is such that it is inserted into the through hole and temporarily fixed by the biasing force of the tip, when soldering is performed in this temporarily fixed state, the molten solder can easily flow into the through hole to facilitate soldering and reduce man-hours. Can be reduced.

(2) Since the inner peripheral surface of the through hole and the terminal portion can be connected by soldering, it is possible to ensure the connection, prevent the occurrence of connection failure, and improve the stability.

(3) Since the terminal portion is composed of only one terminal member, the contact terminal can be downsized.

(4) Since the end surface of the terminal main body is brought into contact with the printed circuit board, the height of the contact terminal from the printed circuit board can be reduced and space can be saved.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing a stacking manifold block having a structure for temporarily fixing a contact terminal to a printed circuit board according to an embodiment of the present invention.

FIG. 2 is a side view showing a structure for temporarily fixing the contact terminals to the printed circuit board of FIG.

FIG. 3 is a partial cross-sectional view showing details of a structure for temporarily fixing the contact terminals to the printed circuit board in FIG.

4 is a partial cross-sectional view showing details of a structure for temporarily fixing the contact terminals to the printed circuit board in FIG.

[Explanation of symbols]

 1 Stacking manifold block 2 Printed circuit board 3 Contact terminal 4 Solenoid valve 4a Solenoid part 5 Through hole 6 Straight pin header 7 Diode array 8 Terminal body 9 Contactor 10 Terminal part 11 Tip part 12 Bent part 13 Plug D Lower end surface H height

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Mikiyasu Aoki 3 2-3 Marunouchi, Chiyoda-ku, Tokyo Inside Koganei Manufacturing Co., Ltd.

Claims (3)

[Scope of utility model registration request] 1. A terminal portion that extends integrally from a terminal body, is directed toward the terminal body side through a bent portion that is bent in the middle, and has a tip portion that is an elastically deformable free end is inserted into a through hole of a printed circuit board. The contact terminal is temporarily fixed to the printed circuit board, which is temporarily fixed by the urging force of the tip portion. 2. The structure for temporarily fixing a contact terminal to a printed circuit board according to claim 1, wherein the terminal portion is composed of only one terminal member. 3. The temporary fixing structure of a contact terminal to a printed circuit board according to claim 1, wherein an end surface of the terminal body is brought into contact with the printed circuit board.