JPH1167374A - Metal fixture for electrical connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a metal fixture for an electrical connector, with which it is unlikely for a load to be applied to the connection part of a contact, even through the other connector as the mating party is pried up and down when it is being inserted. SOLUTION: This configuration consists of a contact 14, an insulating member 12 for holding fast the contact 14, and a metal fixture 20 to fix the insulating member 12 to a board 24, wherein the metal fixture 20 is composed of a pressure fit part 36 secured to the insulating member 12, a leg for fixing 32 to be inserted fast in a mounting hole 28 in the board 24, and a coupling part 38 to the leg 32 with the pressure fit part 36. A connection part 34 for a land which protrudes in the same direction as that of the leg 32 and given such a shape as being connectable with the board 24 is furnished on the side with coupling 38 of the pressure fit part 36, and it is arranged so that the connection part 22 of the contact 14 with the board 24 is positioned between the leg 32 and the connection part 34 for land.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixture for an electric connector mounted on a circuit board in an electric device.

[0002]

2. Description of the Related Art Referring to FIG.
Will be described. FIG. 3A is a partial perspective view of a conventional electric connector and a substrate, and FIG. 3B is a perspective view of a conventional fixing device. The conventional electrical connector 60 mainly includes the insulator 12, the contact 14, and the fixture 62. The insulator 12 is an electrically insulating plastic and is manufactured by a known technique such as injection molding.
A required number of the contacts 14 are inserted and fixed in the insulator 12. The contact 14 is made of metal, and is manufactured by a known technique such as press working. The contact 14 is composed of three parts, a connecting part 22 connected to the land 30 of the substrate 24, a fixed part fixed to the insulator 12, and a contact part contacting a contact of a mating connector.

The fixing bracket 62 is also made of metal, and is manufactured by a known technique such as press working. As shown in FIG. 3B, the fixing bracket 62 includes a press-fitting portion 36 fixed to the insulator 12 and a fixing leg 32 inserted into the mounting hole 28 of the substrate 24.
And a connecting portion 38 connecting the press-fitting portion 36 and the fixing leg portion 32. Generally, when the electrical connector is fixed to the substrate 24, a fixing bracket 62 is often used. By adopting the above-described configuration, the fixing bracket 62 temporarily fixes the electric connector 60 (that is, firmly fixes the electric connector so that the electric connector does not float off the board at the time of soldering) and a mating connector (not shown). This is used in order to minimize the force applied to the contact portion 22 when it is fitted to the connection portion 22 of the contact.

[0004]

As shown in FIG. 3 (A),
The mating connector is desirably inserted into the electrical connector 60 in the direction of the arrow “b”. However, the electrical connector 60
When a mating connector is fitted to a connector, the connector is often squeezed vertically and horizontally. That is, when the mating connector is fitted to the electrical connector 60, the force applied to the electrical connector 60 is not only a horizontal shearing force but also a force for peeling up and down. When the peeling force is applied up and down,
When the soldering position of the fixing bracket 62 is deeper than the soldering position of the contact 14 (the connecting portion 22), if the soldering position is increased, the contact 14 is easily loaded.
If the soldering position of the fixing bracket 62 is closer to the soldering position of the contact 14 (the connection portion 22), the contact 14 is liable to be subjected to a load if it is squeezed downward.
Therefore, the soldering position of the contact 14 (the connecting portion 2)
2) Depending on the soldering position of the fixture 62, a load is likely to be applied to the soldered portion of the contact 14 (connection portion 22), and in some cases, the soldered portion of the contact 14 (connection portion 22) may be damaged. There was a problem to be solved. If the connecting portion 22 of the contact 14 is damaged, there arises a problem that a contact failure occurs, and if the damaged contact 14 contacts an adjacent contact 14, a short circuit occurs. Further, when the connecting portion 22 of the contact 14 is damaged, there arises a problem that the electric connector 60 itself needs to be replaced or the board 24 itself needs to be replaced. Therefore, it leads to an increase in cost.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is difficult for a load to be applied to a connection portion of a contact of an electric connector even when the mating connector is inserted in a vertical direction when a mating connector is inserted. An object of the present invention is to provide a fixture for the electric connector 10.

[0006]

An object of the present invention is to provide a contact and an insulator for holding and fixing the contact.
An electrical connector 10 comprising: a fixing member 20 for fixing the insulator 12 to the substrate 24;
Is an electric connector comprising a press-fit portion 36 fixed to the insulator 12, a fixing leg 32 inserted into and fixed to the mounting hole 28 of the board 24, and a connecting portion 38 connected to the fixing leg 32 and the press-fit portion 36. 10, the land connecting portion 3 protrudes in the same direction as the fixing leg portion 32 on the connecting portion 38 side of the press-fitting portion 36 and can be connected to the substrate 24.
4 and the connecting portion 22 of the contact 14 to the substrate 24 is provided with the fixing leg 32 and the land connecting portion 3.
4 can be achieved.

Further, the land connecting portion 34 is formed in a substantially L-shape. With such a shape, it is easy to connect to the fixing metal land 26 of the substrate 24 and at the same time,
Since no mounting holes are provided in the substrate 4, the pattern of the substrate 24 is not damaged. A fixing leg A42 protruding in the same direction as the fixing leg 32 is provided substantially at the center of the press-fit portion 36. By providing the fixing leg portion A42, the electric connector 10 can be more firmly fixed, and at the same time, the connecting portion 22 of the contact 14 is surely arranged between the fixing leg portion 32 and the fixing leg portion A42. As a result, no load is applied to the connection portion 22 of the contact 14.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An electrical connector 10 according to the present invention will be described with reference to FIGS. FIG. 1A is a partial perspective view of the electrical connector 10 and the substrate 24 of the present invention, and FIG. 1B is a perspective view of the fixing bracket 20 of the present invention.
FIG. 2A is a partial perspective view of the electric connector 10 and the substrate 24 using another fixing bracket 201 of the present invention,
(B) is a perspective view of a fixing bracket 201 of another example of the present invention. The electrical connector 10 of the present invention is also mainly composed of the insulator 12, the contact 14, and the fixing brackets 20, 201. Although the size of the electric connector 10 varies in size, in this embodiment, the length is about 30 mm, the width is about 20 mm, and the thickness is about 10 mm. The length varies depending on the contact pitch size and the number of cores. In this embodiment, the contact pitch is 1.27 mm and the number of cores is 20. The contact pitch may be, for example, 0.5 to 2 mm, the number of cores may be, for example, 20 to 200, and may be appropriately designed depending on the function and size.

The structure of each component will be described with reference to the drawings. First, the fixing bracket 20, which is a point part of the present invention, will be described with reference to FIG. This fixture 20 is also made of metal as in the prior art, and is manufactured by press working of a known technique. As the material of the fixing bracket 20, brass, phosphor bronze, beryllium copper, and the like are generally used because spring properties and mechanical strength are required, but brass is preferable in consideration of economy. This fixing bracket 20
The insulator 12 is fixed by press fitting or insert molding. The fixing bracket 20 is attached to the insulator 12 as shown in FIG.
It is inserted and fixed from the direction of the arrow “A” in FIG.

The fixing bracket 20 includes a press-fit portion 36 fixed to the insulator 12, a land connecting portion 34 connected to the fixing metal land 26 of the board 24, and a fixing leg 32 fixed to the board 24. It comprises a portion 36 and a connecting portion 38 connecting the fixing leg 32. Each component will be described. The press-fitting portion 36 fixes the fixture 20 to the insulator 12 by press-fitting the insertion hole of the flange portion 18 of the insulator 12 with a jig (not shown) or the like. The shape and size of the press-fit portion 36 are
2 is appropriately designed according to the shape and size of the insertion hole, the strength of the flange portion 18 of the insulator 12, the projected area on the substrate 24, the required strength, and the like. On the opposite side of the press-fit portion 36, approximately 9
A fixing leg 32 protruding in the direction rotated by 0 degrees is provided. The fixing legs 32 serve to temporarily fix the electric connector 10 to the mounting holes 28 of the board 24 and completely connect the electric connector 10 to the board 24 after soldering such as reflow soldering.
It is for fixing to. In consideration of the role, in this embodiment, it is formed into a forked shape having spring properties. As long as the role can be satisfied, one piece may be used instead of the bifurcated shape.

A connecting portion 3 for connecting the press-fitting portion 36 and the fixing leg 32 is provided between the press-fitting portion 36 and the fixing leg 32.
8 are provided. On the connecting portion 38 side of the press-fitting portion 36, a substantially L-shaped land connecting portion 34 protruding in the same direction as the fixing leg portion 32 is provided. The land connecting portion 34 is provided with the contact 14 and the fixing leg 32.
At the same time, by soldering at the time of reflow, it is for fixing the electric connector 10 more firmly,
Further, this is for eliminating a load on the contact 14 when a mating connector (not shown) is inserted or removed. In this embodiment, the land connecting portion 34 is shown as having a substantially L-shape in consideration of the pattern of the substrate 24, but may be the same as the fixing leg portion 32 as long as the above-mentioned role can be satisfied.
In the present embodiment, the land connection portion 34 is bent in an L shape so as to face outward when the fixing bracket 20 is fixed to the insertion hole of the insulator 12. Any material can be used as long as it can be fixed to the land 26. The material may be bent in the opposite direction or may have a substantially "U" shape. The size of the land connection portion 34 is appropriately designed in consideration of preventing a load from being applied to the contact 14 and the size of the electrical connector 10.

Next, the insulator 12 will be described.
This insulator is also an electrically insulating plastic, as in the prior art, and is manufactured by known injection molding or the like. PBT, PET, PA, PPS, LCP and the like are used as the material of the insulator 12 because heat resistance and moldability are required. LCP is preferable in consideration of formability and step stability. The insulator 12 mainly includes a main body 15, a fitting portion 16, and a flange 18. The body portion 15 of the insulator 12 is provided with a hole into which a required number of contacts 14 are inserted. The contact 14 is held and fixed to the hole by press fitting, patching (lance), or the like.

At a substantially central portion of the main body 15 of the insulator 12, there is provided a fitting portion 16 which projects in the opposite direction from which the connecting portion 22 of the contact 14 projects. The fitting portion 16 is a portion to be fitted with a mating connector. Further, flange portions 18 are provided on both sides of the body portion 15 in the length direction of the insulator 12 so as to protrude in a direction opposite to the fitting portion 16. The flange portion 18 is provided with an insertion hole to which the fixing bracket 20 is fixed. The size of the insertion hole is appropriately designed in consideration of the strength of the insulator 12 when the fixing bracket 20 is fixed. Further, the insulator 12 has a connection portion 22 of the contact 14 between the main body portion 15 and the flange portion 18.
It is arranged to cover.

Finally, the contact 14 will be described. The contact 14 is fixed to the insulator 12 by press fitting or patching (lance). The contact 14 is also made of metal as in the related art, and is manufactured by a known press working. As a material of the contact 14, beryllium copper, phosphor bronze, or brass having good spring properties is generally used. Brass is preferred in consideration of cost and conductivity. The contact 14 also includes three parts: a connection part 22 connected to the land 30 of the substrate 24, a fixed part fixed to the insulator 12, and a contact part that comes into contact with the contact of the mating connector. In this embodiment,
Although the surface mount type (SMT type) is illustrated, an L-type deep type may be used.

Referring to FIG. 2, another fixing bracket 201 will be described. The fixing member 201 includes a press-fit portion 36 fixed to the insulator 12 and a fixing member land 26 of the substrate 24.
, A fixing leg 32 fixed to the substrate 24, a fixing leg A 42, a press-fitting portion 36, and a connecting portion 38 connecting the fixing leg 32.
The description of the same parts as those of the fixing bracket 20 in FIG. 1B is omitted, and the structure will be described only for the different parts. The difference from the fixing bracket 20 is that the fixing bracket 201 is provided with a fixing leg A42. The fixing leg 32 is provided substantially at the center of the press-fit portion 36.
And is provided to project in the same direction. Like the fixing leg 32, the fixing leg A42 also serves to reduce the load applied to the contact 14 when the mating connector is inserted and removed, and to more securely fix the electrical connector 10 to the board 24. It is. The shape of the fixing leg portion A42 is also bifurcated in the present embodiment in order to have a spring property similarly to the fixing leg portion 32. However, any shape can be used as long as the above role can be satisfied. May be.

[0016]

According to the present invention, the following effects can be obtained by adopting the above structure. A land connecting portion 34 protruding in the same direction as the fixing leg 32 on the connecting portion 38 side of the press-fitting portion 36 and having a shape connectable to the substrate 24;
2 is located between the fixing leg portion 32 and the land connection portion 34, so that the connection portion 22
Has become harder to load. By making the land connecting portion 34 substantially L-shaped, it becomes easy to connect to the fixing metal land 26 of the substrate 24 and at the same time, since the mounting hole is not provided in the substrate 24, the pattern of the substrate 24 is Does not hurt. Provision of the fixing leg portion A42 protruding in the same direction as the fixing leg portion 32 substantially at the center of the press-fit portion 36 allows the electric connector 10 to be fixed more firmly and at the same time ensures reliable contact. Since the connecting portion 22 of the contact 14 can be disposed between the fixing leg portion 32 and the fixing leg portion A42, no load is applied to the connecting portion 22 of the contact 14. -Since the load on the connecting portion 22 of the contact 14 is hard to be applied, the connecting portion 22 of the contact 14 is not damaged, and it is not necessary to replace the connector 10 or the board 24 itself. -Since the connection portion 22 of the contact 14 is no longer damaged, poor contact and short circuit no longer occur.

[Brief description of the drawings]

FIG. 1A is a perspective view of an electrical connector of the present invention and a partial perspective view of a substrate. (B) It is a perspective view of the fixture of this invention.

FIG. 2A is a perspective view of an electrical connector using another fixture of the present invention and a partial perspective view of a board. (B) It is a perspective view of the fixture of another example of this invention.

FIG. 3A is a perspective view of a conventional electrical connector and a partial perspective view of a substrate. (B) It is a perspective view of the conventional fixture.

[Explanation of symbols]

 10, 60 Electrical connector 12 Insulator 14 Contact 15 Main body 16 Fitting part 18 Flange part 20, 201, 62 Fixing part 22 Connecting part 24 Board 26 Land for fixing part 28 Mounting hole 30 Land 32 Fixing leg part 34 For land Connecting part 36 Press-fit part 38 Connecting part 40 Mounting hole A 42 Fixing leg A

Claims (3)

[Claims] 1. An electric connector comprising a contact, an insulator for holding and fixing the contact, and a fixture for fixing the insulator to a substrate, wherein the press fitting includes a fixing fitting fixed to the insulator. In a fixing bracket for an electric connector, comprising: a fixing leg inserted and fixed in a mounting hole of a substrate; and a connecting portion connected to the fixing leg and the press-fitting portion, wherein the fixing leg is provided on a connecting portion side of the press-fitting portion. Providing a land connection part that projects in the same direction and can be connected to the board,
A metal fitting for an electrical connector, wherein a connecting portion of the contact to the substrate is located between the fixing leg portion and the land connecting portion. 2. A fixing fitting for an electrical connector according to claim 1, wherein said land connection portion is formed in a substantially L-shape. 3. A fixing fitting for an electrical connector according to claim 1, wherein a fixing leg portion A is provided substantially at the center of said press-fitting portion and protrudes in the same direction as said fixing leg portion.