JPH10255931A - Electric connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To minimize the dimension between base boards, simplify the positioning of a connector with the base boards, and mutually connect the base boards by one connector by imparting a spring property to the contact, bringing both ends of the contact into contact with the bases, and providing fixing means for pressing both the ends to the base boards on both longitudinal sides of an insulator. SOLUTION: Contact parts 16, 16 on both ends of a contact 14 are free and pressed to base boards 24, 24, and the fixed part 26 thereof are fixed to an insulator 12. Thus, the contact 14 of an electric connector 10 is allowed to communicate with the base boards 24, 24. The contact parts 16, 16 are protruded to the upper surface and lower surface of the insulator 12. The contact 14 is formed into substantially C-shape so as to be deflectable when arrowed directional (a) and arrowed directional (b) forces are added thereto. Fixing means for pressing the contact parts 16, 16 of the contact 14 to the base boards 24, 24, for example, forked lock pin type fixtures 22 having engaging parts 23 are provided on both longitudinal sides of the insulator 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric connector for connecting two substrates used in an electronic device.

[0002]

FIG. 3 is a sectional view of a plug connector 50 and a receptacle connector 70 of a conventional electrical connector 10. As shown in FIG. The plug connector 50 and the receptacle connector 70 of the conventional electric connector 10 mainly include the contacts A and B5.
4 and 74 and insulators A and B 52 and 72.

First, the plug connector 50 will be described. The plug connector 50 has a plurality of contacts A5.
4 is held and fixed to the insulator A52 by press fitting or the like. The contact A54 is made of metal, and is manufactured by a known technique such as press working. This contact A54
Is a connecting portion A58 connected to the substrates 24, 24 and an insulator A
52, and a contact portion A60 that contacts the contact B74 of the receptacle connector 70. The insulator A52 is an electrically insulating plastic and is manufactured by known injection molding or the like. The insulator A52 is provided with a fitting protrusion 62, and the contact portion A6 of the contact A54 is provided from the fitting protrusion 62.
0 protrudes outward in the width direction.

Next, the receptacle connector 70 will be described. In the receptacle connector 70, a plurality of contacts B74 are held / pressed into the insulator B72 or the like.
Fixed. The contact B74 is made of metal and is manufactured by a known technique such as press working. The contact B74 is connected to a connection portion B78 connected to the substrates 24, 24.
And a fixed portion B76 fixed to the insulator B72 and a contact portion B80 that contacts the contact A54 of the plug connector 50. The insulator B72 is an electrically insulating plastic, and is manufactured by known injection molding or the like. The insulator B72 is provided with a fitting groove 82 into which the fitting convex portion 62 of the plug connector 50 is inserted, and the contact portion B80 of the contact B74 projects from the fitting groove 82 inward in the width direction.

The electrical connector 10 includes a plug connector 50
Of the fitting groove 62 of the receptacle connector 70
2 in the direction of arrow C, the contact portion A60 of the contact A54 of the plug connector 50 and the contact portion B80 of the contact B74 of the receptacle connector 70.
Are in electrical contact with each other.

[0006]

As described above, the distance between the substrates 2
4 and 24 are electrically connected by two connectors (ie, the plug connector 50 and the receptacle connector 7).
0) is required, and there is a problem that the cost increases. Further, in recent years, as electronic devices have been miniaturized, there has been a problem that when two connectors are used, it is extremely difficult to reduce the size between the substrates 24, 3 to 3 mm or less. When two connectors are used, there is a problem that the alignment between the two connectors is very troublesome due to the processing accuracy of the components of the two connectors, the mounting accuracy of the connectors to the substrates 24, 24, and the like. There was also a problem that it took a lot of time to assemble.

According to the present invention, the distance between boards can be reduced, the position of the connector and the board can be easily adjusted, and the number of assembly steps can be reduced.
It is an object of the present invention to provide an electrical connector 10 that can connect one board to another.

[0008]

SUMMARY OF THE INVENTION An object of the present invention is to provide a contact having a spring property, contacting both ends of the contact with a substrate, and fixing means for pressing both ends of the contact against the substrate. This can be achieved by providing on both sides in the longitudinal direction.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION

An embodiment of the present invention will be described below with reference to FIG. FIG. 1A shows an electric connector 1 according to the present invention.
FIG. 1B is a perspective view of the electrical connector 1 of the present invention.
FIG. 2 is a cross-sectional view when 0 is attached to two substrates 24, 24.
FIG. 2 shows that the contact portion 16 of the contact 14 of FIG.
FIG. 9 is a side view of the electrical connector 10 showing another fixing means for pressing the connectors 4 and 24.

The electrical connector 10 according to the present invention mainly comprises a contact 14 and an insulator 12. Although the size of the electric connector 10 varies in size, in the present embodiment, the length is about 12 mm, the width is about 4 mm, and the height is about 3 mm.
The length varies depending on the contact pitch size and the number of cores. In this embodiment, the contact pitch is 1.0 mm,
The number of cores is 20. 0.5 as contact pitch
1.5 to 1.5 mm, etc., and the number of cores may be 4 to 100 cores.

First, the contact 14, which is a point of the present invention, will be described. This contact 14 is shown in FIG.
It has a substantially C shape as shown in FIG. The contact 14 has a contact portion 1 whose both ends are pressed against the substrates 24, 24.
6 and 16 and 3 of the fixing portion 26 fixed to the insulator 12
It is composed of parts. The contact 14 is held and fixed to the insulator 12, and is manufactured by a known press working or the like, similarly to the related art. As a material of the contact 14, beryllium copper or phosphor bronze having a good spring property is used. Considering the spring properties and workability, phosphor bronze is preferred.

The fixing portion of the contact 14 is formed by the insulator 1
2 is fixed by press-fitting or pinching. In consideration of assembly and the like, a fixing method by press fitting is preferable. The contact portions 16 at both ends of the contact 14 are free ends and are pressed against the substrates 24. By pressing, the contacts 14 of the electrical connector 10 and the substrates 24, 24
Is conducted. Therefore, the contact portions 16, 16 protrude from the upper surface (upper side in FIG. 1A) and the lower surface (lower side in FIG. 1A) of the insulator 12. The protruding amount is appropriately designed in consideration of the contact pressure to the substrates 24, 24 and the like. In this embodiment, the protruding amount is set to about 0.5 mm to satisfy a contact pressure of 30 g.

Each of the contact portions 16 and 16 is
4. Do not damage the substrate 24, 24 or
It is curved in consideration of the contact with the surface. Contact 14
Any shape may be used as long as the contact 14 can bend when the contact portions 16, 16 are pressed against the substrates 24, 24. Therefore, FIG.
The contact 14 is made to bend when a force is applied in the direction of the arrow "a" or in the direction of the arrow "b".

Next, the insulator 12 which is another point of the present invention will be described. This insulator 12 also
It is manufactured by well-known injection molding or the like, similarly to the related art. As the material of the insulator 12, PBT, PET, PA, PPS, LCP
Etc. are used. PBT is preferred in consideration of formability and mechanical strength. On both sides of the insulator 12 in the longitudinal direction, fixing means for pressing the contact portions 16, 16 of the contact 14 against the substrates 24, 24 are provided. As this fixing means, the contact portion 16 of the contact 14 is
Anything can be used as long as it can be pressed against the 24. For example, as shown in FIG.
Alternatively, a lock pin type separate component 22 having an engaging portion A23 on the side to be inserted into the fork may be used. The fixing tool 22 may be any metal or nonmetal as long as it can be fixed to the substrate 24, and is preferably metal in consideration of the pressing force, strength, and the like. Examples of the material include steel, brass, and stainless steel (stainless steel).

Further, as shown in FIG. 2, a fixture 221 provided with an engaging portion B25 on the side to be inserted into the substrates 24, 24 and integrated with the insulator 12 may be used. The fixtures 20 and 221 have a spring property because they are inserted into the substrate. In addition to the above two methods, there are methods such as screwing.

On both sides of the insulator 12 in the width direction, insertion grooves 18 into which the contacts 14 are inserted and fixed are provided. The contact 14 is fixed to the insulator 12 by inserting the contact 14 into the insertion groove 18 from the width direction. The size of the insertion groove 18 is approximately 0.05 to 0.15 mm larger than the contact 14 at the portion to be inserted, and approximately 0.05 to 0.1 mm smaller at the fixed portion. The insertion groove 18 may have any size and shape as long as the contact 14 is inserted and fixed, and is appropriately designed according to the strength of the insulator 12 and the like.

[0018]

The present invention has the following remarkable effects by the above-described structure. It is not necessary to use two connectors (that is, the plug connector 50 and the receptacle connector 60) to electrically connect the boards 22, 22, so that the boards 22, 22 can be connected with one connector. Was. -Costs can be reduced. -Since a single connector can be used to connect the boards, the height between the boards can be reduced (the size between the boards can be reduced) and can be reduced to 3 mm or less.・ Since the two connectors are not used, they can be easily assembled without being affected by the processing accuracy of the components of the two connectors or the mounting accuracy of the connectors to the substrates 24, 24, etc.
Assembly man-hours can be reduced.

[Brief description of the drawings]

FIG. 1A is a perspective view of an electrical connector of the present invention. (B) It is A-A 'sectional drawing of the electric connector of (A).

FIG. 2 shows another embodiment of the means for fixing the electrical connector to the substrate according to the present invention.

FIG. 3 is a cross-sectional view of a plug connector and a receptacle connector of a conventional electrical connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Electric connector 12 Insulator 14 Contact 16 Contact part 18 Insertion groove 20 Flange part 22, 221 Fixture 23 Engagement part A 24 Board 25 Engagement part B 26 Fixation part 50 Plug connector 52 Insulator A 54 Contact A 56 Fixation part A 58 Connection part A 60 Contact part A 62 Fitting convex part 70 Receptacle connector 72 Insulator B 74 Contact B 76 Fixed part B 78 Connection part B 80 Contact part B 82 Fitting groove

Claims (3)

[Claims] A male and female connector comprising a contact and an insulator for holding and fixing a plurality of contacts, wherein the electrical contact connects between boards with the male and female connector, wherein the contact has a spring property. An electrical connector wherein both ends of the contact are brought into contact with the substrate, and fixing means for pressing both ends of the contact against the substrate are provided on both longitudinal sides of the insulator. 2. The electrical connector according to claim 1, wherein said contacts are substantially C-shaped. 3. The electrical connector according to claim 1, wherein both ends of the contact are free ends, and both ends protrude from the insulator.