JPH10255930A - 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 spring property to the contact, fixing one end of the contact to one base board, bringing the other end into contact with the other base board, and providing fixing means for pressing the contact to the base boards on both longitudinal sides of an insulator. SOLUTION: A connecting part 18 in one end of a contact 14 is soldered to a base board 22. The fixed part of the contact 14 is fixed to an insulator 12 by press-in. A connecting part 16 in the other end of the contact 14 is pressed onto the other base board 22 to allow the contact 14 of an electric connector 10 to communicate with the base board 22. Therefore, the contact part 16 is protruded on the upper surface of the insulator 12. The contact 14 is formed into substantially C-shape so as to be deflectable when an arrowed directional (a) force is added thereto. Fixtures 20 having engaging parts 24 are provided on both longitudinal sides of the insulator 12 as fixing means for pressing the contact part 16 of the contact 14 to the base board 22.

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. 4 is a sectional view of a plug connector 50 and a receptacle connector 60 of a conventional electrical connector 10. As shown in FIG. The plug connector 50 and the receptacle connector 60 of the conventional electric connector 10 mainly include the contacts A and B1.
41 and 142 and insulators A and B 121 and 122.

First, the plug connector 50 will be described. The plug connector 50 includes a plurality of contacts A1
41 is held and fixed to the insulator A121 by press fitting or the like. The contact A141 is made of metal, and is manufactured by a known technique such as press working. This contact A
141 is a connection part A181 connected to the substrate 22, a fixed part fixed to the insulator A121, and the receptacle connector 6
No. 3 of the contact portion A 161 that contacts the contact B 142 of No. 0
It is composed of parts. The insulator A121 is an electrically insulating plastic, and is manufactured by known injection molding or the like. A fitting projection 52 is provided on the insulator A121, and a contact portion A161 of the contact A141 projects outward in the width direction from the fitting projection 52.

Next, the receptacle connector 60 will be described. In the receptacle connector 60, a plurality of contacts B142 are held and fixed to the insulator B122 by press fitting or the like. The contact B142 is made of metal, and is manufactured by a known technique such as press working. The contact B142 is connected to a connection portion B1 connected to the substrate 22.
82 and a fixing portion fixed to the insulator B122 and a contact portion B16 that contacts the contact A141 of the plug connector 50.
It is composed of two parts. The insulator B122
Is an electrically insulating plastic and is manufactured by known injection molding or the like. The insulator B122 is provided with an insertion groove 62 into which the fitting projection 52 of the plug connector 50 is inserted. From the fitting groove 62, the contact portion B162 of the contact B142 projects inward in the width direction.

The electrical connector 10 includes a plug connector 50
Is inserted into the insertion groove 6 of the receptacle connector 60.
2, the contact portion A161 of the contact A141 of the plug connector 50 and the contact portion B162 of the contact B142 of the receptacle connector 60 are brought into contact with each other to be electrically connected.

[0006]

As described above, the distance between the substrates 2
2 and 22 are electrically connected by two connectors (that is, the plug connector 50 and the receptacle connector 6).
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 distance between the substrates 22 to 3 mm or less. In the case where two connectors are used, depending on the processing accuracy of the components of the two connectors and the mounting accuracy of the connectors to the substrate 22, etc.
There is a problem that the alignment between the two connectors is very troublesome, and there is also a problem that it takes a lot of man-hour 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 It is an object of the present invention to make a contact have a spring property, fix one end of the contact to one substrate, contact the other end of the contact with the other substrate, and This can be attained by providing fixing means for pressing the substrate on the side with which the other end of the insulator comes into contact on both sides in the longitudinal direction of the insulator.

[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 22. FIG.
FIG. 4 is a cross-sectional view of the electrical connector 10 when another embodiment of the contact 14 which is a point portion of the present invention is used. FIG. 3 is a side view of the electrical connector 10 showing fixing means for pressing the contact portion 16 of the other contact 14 of FIG.

The electrical connector 10 according to the present invention mainly comprises a contact 14 and an insulator 12. Although the size of the electrical connector 10 varies in size, in this embodiment, the length is about 12 mm, the width is about 4 mm, and the height is about 1.5 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
And the number of cores is 20. The contact pitch may be 0.5 to 1.5 mm or the like, and the number of cores may be 4 to 1
A number of cores, for example, are conceivable, and are appropriately designed according to functions and the like. In this embodiment, the surface mounting (hereinafter, referred to as SMT) is illustrated as the shape of the contact tail, but a dip type may be used.

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 is composed of three parts: a connecting part 18 connected to one substrate 22, a fixing part fixed to the insulator 12, and a contact part 16 pressed by the other substrate 22. 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 connecting portion 18 at one end of the contact 14
It is soldered to the substrate 22 by reflow or the like at the same time as other electronic components. The shape of the connecting portion 18 is appropriately designed depending on the shape of the contact tail (the method of connecting to the substrate 22) and the like. The fixing portion of the contact 14 is
2 is fixed by press fitting or heat fusion. In consideration of assembly and the like, a fixing method by press fitting is preferable. The contact portion 16 at the other end of the contact 14 is pressed against the other substrate 22. By pressing, the contact 14 of the electrical connector 10 and the substrate 22 are conducted. Therefore, the contact portion 16 protrudes from the upper surface of the insulator 12 (upper side in FIG. 1A). The amount of protrusion is appropriately designed in consideration of the contact pressure to the substrate 22 and the like.
In order to satisfy the contact pressure of g, the thickness is set to about 0.5 mm.

The contact portion 16 is curved in order to prevent the substrate 22 from being damaged and to make contact with the substrate 22. The shape of the contact 14 may be any shape as long as the contact 14 can bend when the contact portion 16 is pressed against the substrate 22. Therefore, as shown in FIG. 1B, the contact 14 is bent in a substantially C-shape when a force in the direction of the arrow “a” is applied. Another shape of the contact 14 was substantially Y-shaped as shown in FIG. Even with this shape, the contact 14 can bend even when a force is applied 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, or the like is used because moldability and heat resistance are considered as in the related art. Considering moldability and heat resistance, PP
S is good. Fixing means for pressing the contact portions 16 of the contacts 14 against the substrate 22 are provided on both sides in the longitudinal direction of the insulator 12. Any fixing means may be used as long as the contact portion 16 of the contact 14 can be pressed against the substrate 22. For example, as shown in FIG. 1 (A), a lock pin type separate component 2 having an engaging portion A24 on the side to be inserted into a generally used substrate 22 and divided into two forks.
It may be 0. The fixing tool 20 may be any metal or nonmetal as long as it can be fixed to the substrate 22, and metal is preferable in consideration of the pressing force and strength. Examples of the material include steel, stainless steel (stainless steel), and brass.

Further, as shown in FIG. 3, a fixture 20 having an engaging portion B26 on the side to be inserted into the substrate 22 and being integral with the insulator 12 is provided.
It may be one. The fixtures 20 and 201 have spring properties because they are inserted into the substrate. In the two examples described above, the case where the engaging portion is provided only on the contact portion 16 side of the contact 14 is described.
It is better to provide an engaging part provided on the contact part 16 so that the contact part 16 can be temporarily fixed. 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 19 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 19 from the width direction. The size of the insertion groove 19 is about 0.05 to 0.1 mm larger than the contact 14 at the part to be inserted, and about 0.05 to 0.1 mm smaller at the fixed part. The insertion groove 19 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, the assembly can be easily performed without being affected by the processing accuracy of the components of the two connectors, the mounting accuracy of the connectors to the substrate 22, and the like, and the number of assembling steps 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 is an embodiment of another contact of the electric connector of the present invention.

FIG. 3 is a view showing another embodiment of the means for fixing the electric connector to the substrate according to the present invention.

FIG. 4 is a sectional view of a plug connector and a receptacle connector of a conventional electric connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Electrical connector 12 Insulator 121 Insulator A 122 Insulator B 14 Contact 141 Contact A 142 Contact B 16 Contact part 161 Contact part A 162 Contact part B 18 Connection part 181 Connection part A 182 Connection part B 19 Insertion groove 20, 201 Fixture 22 Substrate 24 Engagement part A 26 Engagement part B 50 Plug connector 60 Receptacle connector 62 Fitting groove

Claims (4)

[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 the boards with the male and female connectors, wherein the contact has a spring property. And fixing means for fixing one end of the contact to one substrate, bringing the other end of the contact into contact with the other substrate, and pressing the contact against the substrate on the other side with which the other end of the contact contacts. An electrical connector provided on both longitudinal sides of a body. 2. The electrical connector according to claim 1, wherein said contacts are substantially C-shaped. 3. The electrical connector according to claim 1, wherein said contacts are substantially Y-shaped. 4. The electrical connector according to claim 1, wherein a side of the contact pressing the substrate protrudes from the insulator.