JP5004820B2 - Connection structure between circuits - Google Patents

Description

  The present invention relates to a connection structure between circuits related to the connection between a circuit body body circuit and a connection partner circuit.

  For example, a technique disclosed in Patent Document 1 below is known as a connection structure between a circuit body circuit and a connection counterpart circuit. In FIG. 4, the circuit body 1 includes a flat board 2 formed along the horizontal direction of the figure, a bus bar-like circuit 3 arranged on the board 2, and the board 2. And a support plate 4 that sandwiches the circuit 3.

  The circuit body 1 is formed with an opening 6 for connection with a pin terminal 5 of an electromagnetic solenoid that is a connection counterpart. A pair of spring contact portions 7 coupled to the circuit 3 are exposed in the opening 6. At the tip of each spring contact portion 7, an end portion 8 is formed that is bent by 90 ° and extends in the direction of connection with the pin terminal 5 (vertical direction in the figure). The interval between the end portions 8 is set according to the diameter of the pin terminal 5. The pin terminal 5 is connected to an electromagnetic solenoid circuit.

In the above configuration, when the pin terminal 5 is inserted into the opening 6 for electrical connection with the electromagnetic solenoid, the pin terminal 5 and the end 8 of the spring contact portion 7 come into contact with each other to form a connection state. When the pin terminals 5 are inserted between the end portions 8, the spring contact portions 7 are pushed by the pin terminals 5 to cause a slight deflection, thereby widening the interval between the end portions 8 and pin terminals. 5 is inserted.
Japanese Patent Publication No. 5-30037

  The prior art has a problem that when the pin terminal 5 and the spring contact portion 7 are displaced at the time of connection, so-called dosing occurs. When pinching occurs, the pin terminal 5 and the spring contact portion 7 may be deformed or damaged (there may not be covered by the elasticity of the spring contact portion 7), so that the conventional technology has a low contact reliability. Has a point.

  Moreover, in the said prior art, since the connection structure which inserts the pin terminal 5 between the edge parts 8 of the spring contact part 7 is employ | adopted, the problem that a contact stroke must be taken comparatively long Has a point.

  The present invention has been made in view of the above circumstances, and it is an object to provide a connection structure between circuits capable of ensuring high contact reliability and shortening a contact stroke. And

  The circuit-to-circuit connection structure according to the first aspect of the present invention, which has been made to solve the above-described problems, has a terminal on the connection partner side as a planar electrode, while the circuit body has one end as a fixed end and the other. An L-shaped torsion bar terminal having an end side as a contact portion and a one end side parallel to the planar electrode is provided, and the circuit body main body is provided via the L-shaped torsion bar terminal and the planar electrode. And the circuit on the other side of the connection are connected.

  According to the present invention having such characteristics, when the L-shaped torsion bar terminal and the planar electrode come into contact with each other at the time of connection, a force in the torsional direction is generated in the L-shaped torsion bar terminal, and this force is in contact with the portion Act on. Even if the contact stroke is short, sufficient contact pressure is ensured by the torsional force generated at the L-shaped torsion bar terminal. In addition, according to the present invention, since the L-shaped torsion bar terminal is twisted, a doggy-like state does not occur. Furthermore, according to the present invention, since the terminal on the connection partner side is formed on the planar electrode, the positional deviation of the contacted portion by the planar electrode is absorbed.

  The circuit-to-circuit connection structure according to claim 2 is the circuit-to-circuit connection structure according to claim 1, wherein the tip of the contact portion of the L-shaped torsion bar terminal is inclined toward the planar electrode. It is characterized in that it is arranged and formed in a closed state.

  According to the present invention having such characteristics, the contact state between the L-shaped torsion bar terminal and the planar electrode is further improved.

  According to the present invention as set forth in claim 1, it is possible to ensure high contact reliability by adopting a structure in which circuits are connected by contact between an L-shaped torsion bar terminal and a planar electrode, There is an effect that the contact stroke can be shortened.

  According to the second aspect of the present invention, the contact state between the L-shaped torsion bar terminal and the planar electrode is further improved by tilting the contact portion of the L-shaped torsion bar terminal. There is an effect that can be.

  Hereinafter, description will be given with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a connection structure between circuits of the present invention. 2A is a plan view of a connection structure between circuits, and FIG. 2B is a front view. 3A is an enlarged view of an arrow A in FIG. 2B, and FIG. 3B is a connection state. In FIG. 1, the arrow X is defined as the left-right direction, the arrow Y is defined as the up-down direction, and the arrow Z is defined as the front-rear direction.

  In FIGS. 1 and 2, reference numeral 11 indicates, for example, an electromagnetic solenoid on the connection partner side. A plurality of electromagnetic solenoids 11 are provided, and are assembled to a base member (not shown) at a predetermined interval. The electromagnetic solenoids 11 are assembled so as to be lined up in the left-right direction (three in the figure, but not limited to this number). The electromagnetic solenoid 11 is provided with a planar electrode 12 protruding upward. The planar electrode 12 is connected to a circuit (not shown) inside the electromagnetic solenoid 11. The planar electrode 12 is formed so that this shape is a short cylindrical shape as shown in the figure, for example. Reference numeral 13 in the planar electrode 12 indicates a flat contact surface.

  A base member (not shown) for fixing the electromagnetic solenoid 11 is formed as a valve body for the electromagnetic solenoid 11, for example. In such a base member, a fixing portion (for example, including a screw hole) for fixing a circuit body main body 14 to be described later is formed. For example, the fixed portions are arranged and formed on both sides of the electromagnetic solenoids 11 arranged in a line.

  The circuit body as indicated by reference numeral 14 includes an insulating portion 15 having insulating properties, a circuit (not shown) inserted into the insulating portion 15, for example, and an opening 16 of the insulating portion 15 connected to the circuit (not shown). And an L-shaped torsion bar terminal 17 that is exposed through the terminal. When the L-shaped torsion bar terminal 17 comes into contact with the planar electrode 12 of the electromagnetic solenoid 11 to form a connection state at this portion, the circuit body 14 is electrically connected to a circuit (not shown) of the electromagnetic solenoid 11. Connection is like a complete connection.

  The insulating portion 15 has a plurality of openings 16 as described above. The opening 16 is formed in accordance with the arrangement of the electromagnetic solenoid 11. The opening 16 is formed so as to penetrate the insulating portion 15 in the vertical direction. An L-shaped torsion bar terminal 17 is provided inside the opening 16.

  The insulating portion 15 is formed with a fixing portion (not shown, including, for example, a screw insertion hole) on the circuit body main body 14 side in accordance with the arrangement of the fixing portion of the base member (not shown). The circuit body main body 14 is fixed to the base member using a bolt (not shown).

  The L-shaped torsion bar terminal 17 is formed by bending a pin having a round cross section into an L shape. One end of the L-shaped torsion bar terminal 17 is connected to a circuit (not shown) and is fixed to the insulating portion 15 to be a fixed end. One end of the L-shaped torsion bar terminal 17 is formed into a shape that becomes a torsion bar parallel to the contact surface 13 of the planar electrode 12 in the electromagnetic solenoid 11.

  Here, when the one end side is called a torsion bar portion 18, the torsion bar portion 18 is a portion having a function as a torsion bar. A contact portion 20 is connected to the torsion bar portion 18 via a bent portion 19. The contact portion 20 is a portion on the other end side of the L-shaped torsion bar terminal 17. The contact portion 20 is formed so as to extend obliquely downward such that the tip thereof is inclined toward the planar electrode 12.

  In this embodiment, the contact portion 20 is formed to have such a length that the tip slightly protrudes outside the opening 16, in other words, a length that slightly protrudes below the lower surface 21 of the insulating portion 15. ing. The tip of the contact portion 20 is formed in a hemispherical shape. An indent 22 (see FIG. 3) for contacting the contact surface 13 of the planar electrode 12 with a point is formed below the tip of the contact portion 20. In addition, the width dimension of the contact part 20 is set so that it may become smaller than the diameter of the contact surface 13 of the plane electrode 12 (it shall be an example).

  In the above configuration, when the circuit body main body 14 is fixed to a base member (not shown) using a bolt (not shown), the L-shaped torsion bar terminal 17 of the circuit body main body 14 becomes a planar electrode of the electromagnetic solenoid 11 as shown in FIG. 12, the connection state between the circuit body 14 and the circuit of the electromagnetic solenoid 11 is formed.

  Until the L-shaped torsion bar terminal 17 comes into contact with the planar electrode 12, the contact portion 20 is inclined obliquely downward as shown in FIG. 3A, and the position shown in FIG. Until the contact portion 20 is displaced. At this time, since a force in the twisting direction is generated in the torsion bar portion 18, this force acts on a portion where the L-shaped torsion bar terminal 17 and the planar electrode 12 come into contact with each other. Since the displacement amount of the contact portion 20 is small as can be seen from FIG. 3, according to the connection structure of the present invention, even if the contact stroke is short, the force in the torsional direction generated in the L-shaped torsion bar terminal 17 is sufficient. Contact pressure can be secured.

  According to the connection structure of the present invention, since the planar electrode 12 is used, it is possible to absorb the positional deviation of the contacting portions. Further, the connection structure of the present invention can prevent the occurrence of sticking as in the conventional example. Therefore, according to the connection structure of the present invention, high contact reliability can be ensured.

  In addition, according to the connection structure of the present invention, even if the assembled state of the electromagnetic solenoid 11 is poor and the position of the planar electrode 12 is slightly moved up and down, this vertical displacement is absorbed by the L-shaped torsion bar terminal 17. be able to. Therefore, high contact reliability can be ensured.

  It goes without saying that the present invention can be variously modified without departing from the spirit of the present invention.

It is a perspective view which shows one Embodiment of the connection structure between the circuits of this invention. (A) is a top view of the connection structure between circuits, (b) is a front view. (A) is an enlarged view of arrow A in FIG. 2 (b), (b) is a diagram of the connection state. It is sectional drawing of the connection structure between the circuits of a prior art example.

Explanation of symbols

11 Electromagnetic solenoid (connection side)
12 Planar electrode 13 Contact surface 14 Circuit body body 15 Insulating part 16 Opening part 17 L-shaped torsion bar terminal 18 Torsion bar part (one end side)
19 Bent part 20 Contact part (other end side)
21 bottom 22 indent

Claims (2)

The terminal on the connection partner side is formed as a planar electrode, while one end of the circuit body is a fixed end, the other end is a contact portion, and the one end is a torsion bar shape parallel to the planar electrode. A circuit-to-circuit connection structure characterized by providing a character-shaped torsion bar terminal, and connecting the circuit body body circuit and the connection counterpart circuit via the L-shaped torsion bar terminal and the planar electrode . In the connection structure between the circuits according to claim 1,
The connection structure between circuits, wherein the contact portion of the L-shaped torsion bar terminal is arranged and formed in a state in which the tip thereof is inclined toward the planar electrode.

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