JPH10199355A - Connecting structure of part with lead terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the connecting work efficiency of lead terminals and an installing member. SOLUTION: Installing holes 23 are formed to a bus bar (installing members) 20, and a pair of elastic abutting members 22 extending obliquely from both ends of the bus bar 20 to the inner side are provided. When a tact switch (a part with lead terminals) 10 is installed to the bus bar 20, the lead terminals 12 are penetrated in the installing holes 23. As a result, since the lead terminals 12 are pushed in between both elastic abutting members 22 and expand them, both elastic abutting members 22 hold the lead terminals 12 elastically by their elastic restoring force, and thereby, the lead terminals 12 are connected allowable to conduct to bus bar 20. Since it is unnecessary to apply soldering by processing in such a way, the workability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a structure for connecting a component having lead terminals to a mounting member such as a bus bar.

[0002]

2. Description of the Related Art When a component having a lead terminal such as a tact switch is mounted on a mounting member such as a bus bar, the lead terminal is inserted into a through hole formed in the mounting member, and the inserted portion is soldered. A method of fixing to a mounting member has been adopted. As a result, the lead terminals are connected to the mounting member in a conductive manner.

[0003]

However, in the above conventional connection method, it is necessary to further perform a soldering step after the step of inserting the lead terminal into the through hole.
There was a disadvantage that work efficiency was poor. The present invention has been made in view of the above circumstances, and has as its object to improve the connection work efficiency.

[0004]

The invention according to claim 1 is a connection structure for connecting a lead terminal of a component with a lead terminal to a mounting member in a conductive manner, wherein the mounting member has the lead terminal. An elastic contact portion capable of elastically contacting the lead terminal is provided, and the lead terminal and the mounting member are electrically connected to each other by the elastic contact of the elastic contact portion. Have.

According to a second aspect of the present invention, in the first aspect of the present invention, the mounting member is provided with a mounting hole through which the lead terminal can be penetrated, and the elastic contact portions are formed from both edges of the mounting member. It is characterized in that a pair is formed so as to extend inward, and a penetrating portion of the lead terminal into the mounting hole is sandwiched by the pair of elastic contact portions. According to a third aspect of the present invention, in the first aspect of the present invention, a mounting hole is formed in the mounting member so that the lead terminal can be inserted, and a hole edge of the mounting hole extends in a direction in which the lead terminal is inserted. Said elastic contact portion which is capable of elastic bending,
The present invention is characterized in that the lead terminal inserted into the mounting hole comes into contact with the elastic contact portion while causing elastic bending.

According to a fourth aspect of the present invention, in the first aspect of the invention, a pair of the elastic contact portions are formed so as to rise from the mounting member by cutting and raising, and the lead terminals are elastically formed by the pair of elastic contact portions. It has a feature in that it is configured to be pinched between the two.

[0007]

Actions and effects of the present invention

<Claim 1> Since the connection between the lead terminal and the mounting member is performed by bringing the elastic contact portion provided on the mounting member into elastic contact with the lead terminal, soldering is unnecessary, and the connection at the time of connection is not required. Excellent workability. In addition, since the contact is made elastically, the contact reliability is high.

In connection, when the lead terminal is penetrated through the mounting hole, a pair of elastic abutting portions contact the penetrating portion so as to elastically sandwich the lead terminal. And the mounting member are electrically connected to each other. <Claim 3> At the time of connection, when the lead terminal is inserted into the mounting hole, the elastic abutment portion is elastically bent by the lead terminal. And the mounting member are connected.

In the connection, when a lead terminal is fitted between a pair of elastic contact portions, the elastic contact portion is pushed out and elastically contacts the lead terminal by its elastic restoring force. Thus, the lead terminal and the mounting member are connected.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION

<First Embodiment> Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. The component 10 with lead terminals according to the present embodiment is used as a tact switch, and includes a main body 11 having a surface covered with rubber and having a push button 11A on an upper surface, and a pair of right and left extending from the lower surface of the main body 11. And the lead terminal 12 in the form of an elongated plate. A stopper 13 is formed at an intermediate height of each lead terminal 12, and a wedge-shaped stopper portion 14 is formed at a lower end of the lead terminal 12.

The tact switch 10 is mounted so as to be inserted over a pair of bus bars (mounting member, which is a constituent element of the present invention). In the mounted state, the pair of lead terminals 12 can be connected to the pair of bus bars 20. Connected to. The pair of bus bars 20 form an inverted triangle when viewed from the front side, and have a horizontal main body 21 and a pair of left and right elastic abutting portions 2 extending diagonally downward and inward from both left and right edges of the main body 21.
Consists of two. The pair of elastic contact portions 22 can elastically bend in the opening direction.
Are set to a dimension smaller than the plate thickness of the lead terminal 12. The main body 21 has a lead terminal 1
2 are formed. The opening size of the mounting hole 23 in the front-rear direction is set to a size that is slightly larger than the width of the lead terminal 12. Therefore, when the lead terminal 12 is inserted into the mounting hole 23, the stopper 13 It cannot be penetrated. The opening size of the mounting hole 23 in the left-right direction is set slightly larger than the width of the retaining portion 14, and the penetration of the retaining portion 14 into the mounting hole 23 is allowed. Further, in the vertical direction, the distance between the upper surface of the main body 21 and the lower end of the elastic contact portion 22 is set slightly smaller than the distance between the lower edge of the stopper 13 and the upper surface of the retaining portion 14.

When the lead terminal 12 is connected to the bus bar 20, when the lead terminal 12 is inserted into the mounting hole 23, the retaining portion 14 is inserted between the two elastic contact portions 22 to push it. When the retaining portion 14 passes through the elastic contact portion 22, the elastic contact portion 22 is displaced so as to be closed by its elastic restoring force, and the portion of the lead terminal 12 immediately above the retaining portion 14 is formed by the two elastic contact portions. The lead terminal 12 and the bus bar 20 are connected to each other in a conductive manner.

In this state, the stopper 13 is
By contacting the upper surface of the lead terminal 12, further insertion of the lead terminal 12 is restricted, and the retaining portion 14 is locked to the lower end of the elastic contact portion 22 so that the lead terminal 12
Is prevented from falling out of the mounting hole 23, so that the tact switch 10 is stably held on the bus bar 20. Also,
When the lead terminal 12 is to be removed, the elastic contact portion 22 is bent to open using, for example, a jig or the like, and in this state, the retaining portion 14 is passed between the two elastic contact portions 22 and the lead terminal 12 is removed. May be extracted from the mounting hole 23.

As described above, in the present embodiment, the elastic contact portion 22 of the bus bar 20 is brought into elastic contact with the lead terminal 12 by its elastic restoring force, so that the lead terminal 1
2 and the bus bar 20 are connected, so that a soldering step is not required and the workability at the time of connection is excellent.
In addition, since the lead terminals 12 and the bus bars 20 are in elastic contact with each other, contact reliability is increased. Furthermore, at the end of the step of inserting the lead terminal 12 into the mounting hole 23, the wedge-shaped retaining portion 14 is smoothly inserted between the two elastic contact portions 22, so that the operability is excellent.

Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIGS. In the tact switch 30 according to the second embodiment, the lead terminal 32 extending from the main body 31 is formed in a thick vertically long plate shape, and the left and right sides are triangularly cut at substantially the center in the vertical direction. Thus, a pair of held portions 33 is formed. At the lower end of the lead terminal 32, a wedge-shaped guide portion 34 is formed. On the other hand, a slit-shaped mounting hole 41 is formed in each of the pair of bus bars 40, and slit-shaped cutouts 42 extending in both left and right directions are formed at both front and rear ends of each mounting hole 41. The left and right hole edge portions of the mounting hole 41, that is, the portion between the front cutout portion 42 and the rear cutout portion 42 constitute a pair of left and right elastic contact portions 43. The two elastic contact portions 43
Is set smaller than the thickness of the lead terminal 32,
The elastic contact portion 43 is capable of elastically bending in the up-down direction.

When connecting the lead terminals 32 to the bus bar 40, the lead terminals 32 are inserted into the mounting holes 41. Accordingly, the two elastic contact portions 43 are elastically bent downward. Then, the held portion 33 is moved to the two elastic contact portions 43.
When the elastic contact portion 43 is inserted into a position corresponding to
And the lead terminal 32 is elastically sandwiched by the elastic contact portions 43. Thereby, the lead terminal 3
2 is electrically connected to bus bar 40. In this state, the movement of the lead terminal 32 in the insertion / removal direction with respect to the attachment hole 41 is regulated by the engagement between the elastic contact portion 43 and the held portion 33, so that the tact switch 30 is stably attached to the bus bar 40. In the attached state, the elastic contact portion 43 is in a substantially horizontal state, and can be elastically bent in any of the upper and lower directions. Therefore, when the tact switch 30 is detached from the bus bar 40, the lead terminal 32 may be forcibly pulled out from the mounting hole 41 while elastically bending the elastic contact portion 43 upward against the elastic force of the elastic contact portion 43.

In the second embodiment, the elastic contact portions 43 are also provided.
Since the lead terminal 32 and the bus bar 40 are connected by elastic contact with the lead terminal 32, a soldering step is not required, and the workability in the connection operation is excellent. When the lead terminal 32 is inserted into the mounting hole 41, the wedge-shaped guide portion 34 of the lead terminal 32 smoothly enters between the two elastic contact portions 43, so that the operability of insertion is improved. I have.

<Third Embodiment> Next, a third embodiment of the present invention will be described with reference to FIG. In the tact switch 50 according to the third embodiment, the lead terminal 52 extending from the main body 51 has an elongated pin shape with a circular cross section.
At a substantially central position in the vertical direction, a pinched portion 53 that is cut so as to reduce the diameter is formed. In addition, a tapered guiding portion 54 is formed at the lower end of the lead terminal 52. On the other hand, each of the pair of bus bars 60 is formed with a pair of elastic contact portions 61 by cutting and raising a region extending from the mounting position of the lead terminal 52 to both front and rear sides. Each of the elastic contact portions 61 rises in a semi-cylindrical shape, and a pair of elastic contact portions 61 form a substantially cylindrical mounting space 62 into which the lead terminals 52 are inserted. The pair of elastic abutting portions 61 can elastically bend in a direction in which they expand, and the interval between them is set slightly smaller than the outer diameter of the lead terminal 52. At a relatively high position of the elastic contact portion 61, a reduced diameter portion 63 corresponding to the pinched portion 53 of the lead terminal 52 is formed.

When connecting the lead terminals 52 to the bus bar 60, each lead terminal 52 is connected to a pair of elastic contact portions 61, respectively.
Between the two. Accordingly, the elastic contact portions 61 are elastically bent so as to expand in the front-rear direction. When the clamped portion 53 is inserted to a position corresponding to the reduced diameter portion 63, the elastic contact portion 61 is displaced in the closing direction by the elastic restoring force so that the reduced diameter portion 63 is sandwiched by the clamped portion 53. Fits. As a result, the lead terminal 52 is elastically sandwiched by the elastic contact portions 61 and is connected to the bus bar 60 in a conductive manner. In this state, engagement of the reduced diameter portion 63 and the clamped portion 53 causes the lead terminal 52 to move.
The tact switch 50 is stably attached to the bus bar 60. When removing the tact switch 50 from the bus bar 60, the lead terminal 52 may be forcibly pulled out against the elasticity of the elastic contact portion 61.

In the second embodiment, the elastic contact portions 61 are also provided.
Since the lead terminal 52 and the bus bar 60 are connected by elastic contact with the lead terminal 52, a soldering step is not required, and the workability in the connection operation is excellent. When the lead terminal 52 is inserted between the two elastic contact portions 61, the tapered guiding portion 54 of the lead terminal 52 smoothly enters between the two elastic contact portions 61. Operability is improved. Further, since the elastic contact portion 61 has a semi-cylindrical shape, the movement of the lead terminal 52 in the front-rear direction (direction in front of the elastic contact portion 61) and also in the left-right direction are restricted. ing. <Other Embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. Various changes can be made without departing from the scope of the invention.

(1) In the above embodiment, the case where the component with a lead terminal is a tact switch is described. However, the present invention provides a component with a lead terminal other than a tact switch, such as a resistor, a capacitor, a coil, a reed switch, and the like. The present invention can also be applied to electronic components such as transistors, diodes, and LEDs. (2) In the above embodiment, the case where the mounting member is a bus bar has been described. However, the present invention can be applied to a case where the mounting member is a member other than the bus bar, such as a circuit board. As a contact structure between the circuit board or the like and the lead terminal when applied to a circuit board or the like, for example, a connection member having the same structure as the bus bar of each of the above embodiments is mounted on the circuit board or the like, and the connection member and the lead terminal are connected to each other. May be brought into contact with each other in a conductive manner. (3) In the first embodiment, the cross-sectional shape of the bus bar is an inverted triangle, but the cross-sectional shape of the bus bar may be another shape such as an arc or a square.

(4) In the first and second embodiments, a pair of elastic contact portions are brought into contact with each lead terminal, but one elastic contact portion is brought into contact with each lead terminal. You may make it do. (5) Although the lead terminals are cylindrical in Embodiment 3, the lead terminals may be prismatic or plate-shaped.

[Brief description of the drawings]

FIG. 1 is a perspective view of a component with lead terminals and a mounting member according to a first embodiment.

FIG. 2 is a cross-sectional view showing a state in which a component with lead terminals is connected to a mounting member in the first embodiment.

FIG. 3 is a sectional view taken along line XX of FIG. 2;

FIG. 4 is a perspective view of a component with a lead terminal and a mounting member according to a second embodiment.

FIG. 5 is a cross-sectional view showing a state in which a component with lead terminals is connected to a mounting member in the second embodiment.

FIG. 6 is a perspective view of a component with lead terminals and a mounting member according to a third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Tact switch (part with a lead terminal) 12 ... Lead terminal 20 ... Bus bar (mounting member) 22 ... Elastic contact part 23 ... Mounting hole 30, 50 ... Tact switch (part with a lead terminal) 32, 52 ... Lead terminal 40 , 60: bus bar (mounting member) 41: mounting hole 43, 61: elastic contact portion

Claims (4)

[Claims] 1. A connection structure for connecting a lead terminal of a component with a lead terminal to a mounting member in a conductive manner, wherein the mounting member has an elasticity capable of elastically contacting the lead terminal. A connection structure for a component with a lead terminal, characterized in that a contact portion is provided, and the lead terminal and the mounting member are electrically connected to each other by the elastic contact of the elastic contact portion. 2. The mounting member is provided with a mounting hole through which the lead terminal can be penetrated, and a pair of the elastic contact portions are formed so as to extend inward from both edges of the mounting member. 2. The connection structure for a component with a lead terminal according to claim 1, wherein a portion of the lead terminal penetrating the mounting hole is sandwiched between the pair of elastic contact portions. 3. The mounting member has a mounting hole through which the lead terminal can be inserted, and a hole edge of the mounting hole allows the elastic contact to be elastically bent in the insertion direction of the lead terminal. 2. A lead terminal according to claim 1, wherein said lead terminal inserted into said mounting hole comes into contact with said elastic contact portion while causing elastic deformation. Connection structure of parts. 4. A pair of elastic contact portions are formed so as to rise from the mounting member by cutting and raising, and the lead terminals are elastically sandwiched by the pair of elastic contact portions. The connection structure for a component with a lead terminal according to claim 1.