JP2002289291A - Spring connector parts and spring connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide spring connector parts and a spring connector which do not waste materials but can use inexpensive materials so as to drastically reduce the manufacturing costs and do not damage electronic parts to be attached due to occurrence of burrs and so on. SOLUTION: A spring connector part that one end of an energized wire is fixed with a predetermined pitch in the length direction of a hoop-shaped plate and a spring connector that a required number of single parts made of wires cut out of a plate of the part are contained in a synthetic resin case.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component for a spring connector and a spring connector, and more particularly to a spring which can significantly reduce manufacturing costs by eliminating waste of materials and which is hard to damage electronic components to be mounted. The present invention relates to a connector part and a spring connector.

[0002]

2. Description of the Related Art A plurality of metal terminals are housed in a synthetic resin case as a surface mounting connector used for mounting electronic components on a substrate, and are electrically connected to the electronic components by the metal terminals. There is a connector having a structure in which a contact portion and a fixing portion to be soldered to a substrate are formed on the front and back surfaces of a case. Generally, a metal terminal of such a connector is manufactured by punching a single plate material into a fixed shape having a curved portion as shown in FIG. 8, and the curved portion of the metal terminal forms a contact portion of the connector. Spring properties are provided. Such a connector having a spring property at the contact portion is generally called a spring connector, which can be easily detached without requiring soldering for mounting electronic components, and a circuit fixed at an unstable position. It has the feature that electrical signals can be transmitted to the substrate by freely changing the contact.

[0003] However, in the production by punching such a plate material, the die for punching is very complicated and expensive, and the remaining 60 to 7 parts of the punched plate material are used.
As much as 0% of the material is wasted because it is discarded, and much beryllium copper is usually used for the plate to provide spring properties, which results in increased manufacturing costs. Was invited. The contact portion is usually formed with a radius (R), but this radius is formed only in the movable direction, and burrs are easily generated on one side in the section of the plate material in the punching direction, and an edge is formed on the corner portion. Therefore, there is a problem in that a portion that comes into contact with the electronic component when it is detached is cut off to cause a contact failure.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and it is possible to use a low-priced material without wasting the material. An object of the present invention is to provide a spring connector component and a spring connector that do not damage electronic components mounted due to the occurrence of burrs and the like.

[0005]

According to the first aspect of the present invention,
The present invention relates to a component for a spring connector, wherein one end of a wire material provided with a spring property is fixed at a predetermined pitch in a length direction of a hoop-shaped plate material. In the invention according to claim 2, a protrusion is formed on a surface near one end of the wire, and a through hole is formed at a predetermined pitch in a length direction of the plate, and the protrusion is inserted into the through hole. 2. The component for a spring connector according to claim 1, wherein the wire is fixed to a plate. The invention according to claim 3 relates to the spring connector component according to claim 1 or 2, wherein a hemispherical radius is formed at the other end of the wire. The invention according to claim 4 relates to the component for a spring connector according to any one of claims 1 to 3, wherein the spring property of the wire is provided by bending.

The invention according to claim 5 relates to the spring connector component according to claim 4, wherein the bent portion is further subjected to a crushing process. The invention according to claim 6 is characterized in that a required number of single components made of a wire separated from the plate of the spring connector component according to any one of claims 1 to 5 is accommodated in a synthetic resin case. Spring connector.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a spring connector component and a spring connector according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a part for a spring connector according to the present invention. Component for spring connector according to the present invention (1)
Is formed by fixing one end of a wire (2) provided with a spring property at a predetermined pitch in a length direction of a hoop-shaped plate (3).

For fixing the wire (2) to the plate (3), for example, as shown in FIG. 2, a projection (4) is formed on the surface near one end of the wire (2) by bending or embossing. At the same time, it can be performed by forming through holes (5) at a predetermined pitch in the length direction of the plate material (3), and inserting and projecting the protrusions (4) into the through holes (5). However,
In the present invention, the method of fixing the wire (2) to the plate (3) is not particularly limited, and another method such as fixing by laser welding may be used.

A hemispherical radius (R) is formed at the other end of the wire (2) as shown in an enlarged portion in the circle of FIG. This other end is a part that contributes to the attachment and detachment of the electronic component when assembled as a spring connector. Due to the formation of a hemispherical radius at this part, the contact point is severely damaged when the electronic component is attached and detached. There is no fear.

[0010] The intermediate portion of the wire (2) is provided with spring properties by being bent by bending. The specific curved shape is not particularly limited as long as it can provide a spring property capable of giving appropriate flexibility to the other end of the wire (2) when assembled as a spring connector. S type, Ω type, L according to the degree of springiness
It can be curved into any shape such as a shape and a U-shape.
At this time, it is also possible to control the bending shape by crushing the curved portion of the wire rod (2) to form an elliptical cross section.

A notch (7) may be formed as shown in the drawing at a position near the other end in the middle of the wire (2), more specifically, near a portion overlapping the plate (3). preferable. The cuts (7) are provided to facilitate cutting of the wire (2) in a later step.

As the material of the wire (2), it is possible to use beryllium copper, phosphor bronze, etc., which are used for ordinary spring connector parts. The wire (2) is partially plated in order to ensure good conductivity and solderability. In the present invention, only the portions that become contact points are plated with gold, and the subsequent portions are inexpensive. It is preferable to reduce the manufacturing cost by replacing with a simple plating. Specifically, for example, a configuration in which one end portion (contact portion with an electronic component) is plated with gold, and an intermediate portion near the other end portion (connection portion to the substrate) is plated with solder or nickel is exemplified. it can.

In the plate member (3), in addition to the above-mentioned through-hole (5), a second through-hole (6) is formed in the longitudinal direction at the same pitch as the through-hole (5). The formation of the second through-hole (6) makes it possible to feed the components at a pitch when assembling the spring connector, resulting in excellent production efficiency. The plate material (3) in the present invention plays only a role of feeding components in the spring connector manufacturing process, so that the performance as a terminal of the spring connector is not required as in the related art. Therefore, an inexpensive metal material such as iron can be used as the material of the plate material (3).

FIG. 3 is a front view of the spring connector according to the present invention, FIG. 4 is a longitudinal sectional view of the spring connector according to the present invention, FIG. 5 is a plan view of the spring connector according to the present invention, and FIG. It is a bottom view of the spring connector concerning the present invention. A spring connector (8) according to the present invention is a component (9) composed of a wire (2) cut off at a notch (7) from a plate (3) of a component (1) for a spring connector configured as described above. A required number (18 in the illustrated example) is alternately and alternately housed in the synthetic resin case (10). still,
In the illustrated example, the wire member uses the spring connector part (1) curved into an Ω shape, but the curved shape is not limited to this as described above. In the illustrated example, the wire is crushed so that the cross section of the wire becomes elliptical, but this is not necessarily required.

The synthetic resin case (10) is made of a heat-resistant insulating material such as polyamide resin, polyphenylene sulfide resin, polybutylene terephthalate resin, liquid crystal polymer resin, etc., and has a substantially rectangular parallelepiped overall shape. . On the bottom of the synthetic resin case (10), slit holes (11) for inserting the parts (9) of the parts (1) for the spring connector are formed in parallel at regular intervals, and from the top to the front. Slit holes (12) are formed at equal intervals in parallel so as to have a staggered positional relationship between the corner portion and the corner portion from the upper surface to the back surface, and these slit holes (12) are formed in parallel with the slit holes (11). It communicates inside the case.

Next, a method for manufacturing a spring connector component and a spring connector according to the present invention will be described. FIG. 7 is a plan view schematically showing a flow direction of a plate and a wire in the connector processing machine. First, the hoop-shaped plate material (3) is fed into the processing die from the X direction in the die plane portion of the connector processing machine, and the wire (2) is fed into the processing die from the Y direction. Next, a through hole (6) for transport is opened in the plate material (3) at a first location of the processing die portion in the X direction, and a second through hole (5) for fastening is opened at a second location. And sent to the machine center of the processing machine. At the same time, a wire rod (2) is formed at a first position of the processing die in the Y direction.
An embossing projection (4) for fastening is machined into the center of the machine, and is sent to the center of the machine. At the second point, a bending process of a predetermined shape, and a hemispherical rounded tip and a notched portion (7) are machined. (2) becomes a spring-like connector terminal, and the protruding portion (4) is pushed into the through hole (5) to fasten the wire (2) and the plate (3).

The above operation is repeated by the connector processing machine, and the wire (2) is fastened at a predetermined pitch to the hoop-shaped plate (3) in which the through hole (6) for transport is opened. The part for a spring connector according to the invention) is taken up by a take-up machine positioned at a leading end in a feed direction of the processing machine. The wound spring connector parts are:
Only the wire (3) is partially plated with gold, and is wound again by another winding machine. The spring connector part of this other winding machine is attached to a feed portion of a mounting connector assembling machine, and the wire rod (2) is cut off at the notch (7) by the assembling machine, and the synthetic resin case ( By mounting them one by one in the predetermined positions of 10), the mounting spring connector (8) according to the present invention is completed.

In the spring connector (8) obtained in this manner, the bottom part where one end of the wire (2) is exposed from the case (10) becomes a fixed part to be soldered to the substrate, and the wire ( The upper surface portion where the portion (2) near the other end (near the cut portion by the cut (7)) is exposed from the case (10) becomes a contact portion electrically connected to the electronic component. And by the curved part formed in the wire (2),
An appropriate spring property is given to the contact portion.

[0019]

As described above, the first aspect of the present invention is characterized in that one end of a spring-imparted wire is fixed at a predetermined pitch in the length direction of the hoop-shaped plate. Because it is a part for a spring connector, there is very little waste of material compared to the part obtained by punching a conventional plate material, and the combination of wire and plate material is adjusted according to the function and characteristics required for the product. Since they can be freely combined and can be manufactured using inexpensive materials, the manufacturing cost can be significantly reduced. In the invention according to claim 2, a protrusion is formed on a surface near one end of the wire, and a through hole is formed at a predetermined pitch in a length direction of the plate, and the protrusion is inserted into the through hole. Then, the wire is fixed to the plate, so that the wire can be reliably positioned and fixed with respect to the plate.

The invention according to claim 3 is characterized in that a hemispherical radius is formed at the other end of the wire.
Or because it is a component for a spring connector according to 2,
A highly reliable contact can be realized without the contact being severely damaged by the attachment and detachment of the electronic component.
The invention according to claim 4 is the component for a spring connector according to any one of claims 1 to 3, wherein the spring properties of the wire are imparted by bending. A desired degree of springiness can be imparted.

According to a fifth aspect of the present invention, in the spring connector part according to the fourth aspect, the bent portion is further subjected to a squeezing process, so that the shape of the bending is controlled. be able to. The invention according to claim 6 is characterized in that a required number of single components made of a wire separated from the plate of the spring connector component according to any one of claims 1 to 5 is accommodated in a synthetic resin case. Because the spring connector is used, most of the wire material can be used as it is as a terminal, and since the plate material is not used as a terminal, inexpensive materials can be used. It is an excellent connector that does not damage the electronic components to be mounted due to the occurrence of the noise.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a part for a spring connector according to the present invention.

FIG. 2 is a perspective view showing a method of fixing a wire to a plate.

FIG. 3 is a front view of a spring connector according to the present invention.

FIG. 4 is a longitudinal sectional view of a spring connector according to the present invention.

FIG. 5 is a plan view of a spring connector according to the present invention.

FIG. 6 is a bottom view of the spring connector according to the present invention.

FIG. 7 is a plan view schematically showing a flow direction of a plate and a wire in the connector processing machine.

FIG. 8 is an explanatory view of a method of manufacturing a metal terminal which is a component of a conventional spring connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Spring connector parts 2 Wire rod 3 Plate material 4 Projection part 5 Through hole 8 Spring connector 9 Single component 10 Synthetic resin case

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Minoru Goto 59-115, Sakanaka, Kanazu-cho, Sakai-gun, Fukui Prefecture F-term (in reference) 3J059 AB04 AD05 BA32 BB01 BC01 CA03 CB02 EA02 EA03 GA23 5E023 AA04 AA08 AA16 AA22 BB09 CC22 CC26 DD26 EE02 FF07 GG06 HH16 HH22 HH28

Claims (6)

[Claims] 1. A component for a spring connector, wherein one end of a wire material provided with a spring property is fixed at a predetermined pitch in a length direction of a hoop-shaped plate material. 2. A projecting portion is formed on a surface near one end of the wire, and a through hole is formed at a predetermined pitch in a length direction of the plate, and the projecting portion is inserted into the through hole to form a wire. The component for a spring connector according to claim 1, wherein the component is fixed to a plate material. 3. The spring connector component according to claim 1, wherein a hemispherical radius is formed at the other end of the wire. 4. The component for a spring connector according to claim 1, wherein the spring property of the wire is imparted by bending. 5. The component for a spring connector according to claim 4, wherein the bent portion is further subjected to a crushing process. 6. A spring connector, wherein a required number of single components made of a wire separated from a plate material of the spring connector component according to claim 1 is accommodated in a synthetic resin case. .