JPH0636153U - Switch contact structure - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To provide a switch contact structure capable of connecting circuit patterns provided on the front side and the back side of a printed circuit board on the printed circuit board. [Structure] The circuit pattern applied to the printed circuit board was made possible by using both front and back surfaces of the printed circuit board, and further the circuit pattern applied to the front surface of the printed circuit board and the back surface of the printed circuit board were applied. As a switch contact structure for connecting with a circuit pattern, a back side circuit pattern formed on the back side of the printed circuit board is pierced through the printed circuit board, and a first contact portion is provided on the front side of the printed circuit board.
The second side of the circuit pattern on the front side opposite to the first contact portion
A switch contact capable of connecting the first contact portion and the second contact portion by a movable contact located on the front side of the printed circuit board, the contact portion being formed concentrically with the first contact portion. And

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a switch contact structure in which a plurality of conductive circuit patterns are formed on a printed circuit board and the conductive circuit patterns are connected by movable contacts.

[0002]

[Prior art]

 As a conventional switch contact structure of this type, there is a structure as shown in FIGS. That is, 1 is a printed circuit board, and a pair of circuit patterns 2 and 3 are formed on the surface (one surface) of the printed circuit board 1. At both ends of these circuit patterns 2 and 3, a movable contact ( Contact points 2a, 3a are formed to contact with (not shown).

[0003]

[Problems to be solved by the device]

 However, in the switch contact structure having such a structure, since the pair of circuit patterns 2 and 3 is formed on one surface of the printed circuit board 1, when the circuit formation space of the printed circuit board 1 is small. However, the layout of the circuit patterns 2 and 3 is unavoidably forced, and sometimes it is difficult to form a switch contact circuit on the same printed circuit board 1.

[0004]

[Means for Solving the Problems]

 The present invention has been made by paying attention to such a conventional defect. The circuit pattern applied to the printed circuit board can be configured by using both front and back surfaces of the printed circuit board, and moreover, the printed circuit board can be configured. As a switch contact structure that connects the circuit pattern on the front side of the board and the circuit pattern on the back side of the printed board, the back side circuit pattern formed on the back side of the printed board is printed through the printed board. A first contact portion is provided on the front side of the substrate, and a second contact portion of the front side circuit pattern, which is opposed to the first contact portion, is formed concentrically with the first contact portion, The switch contact that can connect the first contact portion and the second contact portion by the movable contact located on the front side of the printed circuit board is provided on each of the front side and the back side of the printed circuit board. And to provide a switch contact structure capable of connecting the road pattern on the printed circuit board.

[0005]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.

In FIGS. 3 and 4, reference numeral 11 denotes a printed circuit board, a front side circuit pattern 12 is formed on the front side of the printed circuit board 11, and a back side circuit pattern 13 is formed on the back side of the printed circuit board 11. Are formed. As means for extending the back side circuit pattern 13 to the front side of the printed circuit board 11, a through hole 14 is formed at a predetermined position of the printed board 11, and the back side circuit pattern 13 is utilized by utilizing this through hole 14. 13 is extended to the front side of the printed circuit board 11, and the first contact portion 15 connected to this extended end is radially formed on the front side of the printed circuit board 11.

The second contact portion 16 connected to the front side circuit pattern 12 is patterned on the front side of the printed circuit board concentrically with the first contact portion 15.

In this way, the back side circuit pattern 13 formed on the back side of the printed circuit board 11 is extended to the front side of the printed circuit board through the through hole 14, and the first contact portion 15 is formed at this extended end. In addition, the second contact portion 16 connected to the front circuit pattern 12 formed on the front side of the printed circuit board 11 is formed concentrically with the first contact portion. The switch operation is performed by the front side of the printed circuit board 11 by the pushing operation of the movable contact 17 located between the first contact portion 15 and the second contact portion 16.

Therefore, according to this embodiment, switching of the circuit patterns 12 and 13 formed on both front and back sides of the printed circuit board 11 is performed by pushing the movable contacts arranged on the front side of the printed circuit board 11. In a printed circuit board with switch contacts, a large number of circuit configurations can be made by using both front and back surfaces of the board.

[0010]

【The invention's effect】

 As described above, according to the present invention, the back side circuit pattern 13 formed on the back side of the printed circuit board 11 is extended to the front side of the printed circuit board 11 through the through hole 14 formed in the printed circuit board 11. The first contact portion 15 connected to the extension end is formed on the printed board 11, and the second contact portion 16 connected to the front circuit pattern 12 formed on the front side of the printed board 11. Since the switch contact structure is formed on the printed circuit board 11 concentrically with the first contact part, according to this structure, in a printed circuit board having switch contacts, the front and back surfaces of the circuit board can be used in large numbers. The effect is that the circuit configuration can be performed.

[Brief description of drawings]

FIG. 1 is a side view showing a switch contact structure of a conventional example.

FIG. 2 is a plan view of FIG.

FIG. 3 is a sectional view showing a switch contact structure according to an embodiment of the present invention.

FIG. 4 is a plan view showing a switch contact structure according to an embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 ... Printed circuit board 12 ... Front side circuit pattern 13 ... Back side circuit pattern 14 ... Through hole 15 ... 1st contact part 16 ... 2nd contact part 17 ... Movable contact

Claims (1)

[Scope of utility model registration request] 1. A back side circuit pattern (13) formed on the back side of a printed circuit board (11) is provided on the printed circuit board (1).
1) It is made to extend to the front side of the printed circuit board (11) through the through hole (14) formed in 1), and the first contact part (15) connected to this extended end is placed on the printed circuit board (11). The second contact portion (16) formed and further connected to the front side circuit pattern (12) formed on the front side of the printed circuit board (11) is concentrically arranged with the first contact point on the printed circuit board ( 11) A switch contact structure formed on the above.