JP3076979B2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector which is sandwiched between a pair of electronic components and electrically connects the two components. Examples of the pair of electronic components are an LSI having a land and a printed circuit board. It is.

[0002]

2. Description of the Related Art A conventional first connector described in Japanese Utility Model Laid-Open No. 5-17946 will be described with reference to FIGS.

As shown in FIGS. 6 and 7, a pair of contacts 31 and 35 have the same shape and are formed of a substantially U-shaped leaf spring. One ends 32 and 36 of the contacts 31 and 35 are locked to the insulator 39 and the other end 3
The contacts 3 and 37 connect and lock the contacts 31 and 35 to each other, and the curved portions 34 and 38 contact a pair of electronic components.

[0004] As shown in FIG.
9, a through hole 40 is formed in the connection direction of the pair of electronic components. As shown in FIG. 6 and FIG.
Are provided with three projections 41 on each side.

FIG. 6 shows a through hole 40 of the insulator 39.
5 shows a state in which the pair of contacts 31 and 35 are inserted. The pair of contacts 31 and 35 are connected to one end portions 32 and 36, respectively.
Are locked to the three projections 41 on each side of the through hole 40, and are in surface contact with each other near the other ends 33 and 37. The curved portions 34 and 38 of the pair of contacts 31 and 35 protrude from the through hole 40 to the outside in the vertical direction. The pair of contacts 31, 35 has not been elastically deformed yet in the state of FIG.

A pair of contacts 3 located in the state shown in FIG.
When a pair of electronic components (not shown) are assembled from the upper and lower directions of 1, 35, the state shown in FIG. 10 is reached. The pair of contacts 31 and 35 are elastically deformed and contact each other at two points at the other ends 33 and 37, and the curved portions 34 and 38 are in contact with lands (not shown) of the pair of electronic components. At this time, the pair of contacts 31, 35 elastically deform and repel each other in the connection direction, and the repulsive force is generated by the pair of contacts 31, 35.
35, and the contact force between the curved portions 34, 38 of the pair of contacts 31, 35 and the land of the pair of electronic components.

Next, a second conventional connector described in the publication will be described with reference to FIGS. 11 and 12. FIG.

As shown in FIG. 11, the pair of contacts 51 and 56 have the same shape and are formed of a substantially U-shaped leaf spring. One end 5 of contacts 51 and 56
2 and 57 are locked by the insulator 61 and the other end 5
3 and 58 are in contact with the pair of electronic components,
Reference numerals 4 and 59 make sliding contact with the insulator 61, and the other flat plate portions 55 and 60 make sliding contact with each other.

As shown in FIG. 12, a through hole 62 is formed in the insulator 61 in a direction in which a pair of electronic components are connected. One protrusion 63 is provided on each side of the through hole 62.

A pair of contacts 51 and 56 are inserted into the through hole 62 at the center of FIG.
Reference numeral 7 is locked to a protrusion 63 on each side of the insulator 61. When a pair of electronic components (not shown) are assembled from above and below, one of the flat plates 54, 59 of the pair of contacts 51, 56 comes into sliding contact with each wall surface of the through hole 62 of the insulator 61, and the other contacts. The flat plate portions 55 and 60 are in sliding contact with each other, and reach a state inside the through hole 62 on the right side in FIG. The operation principle of the second conventional connector is the same as that of the first conventional connector.

The pair of contacts 31 and 35 of the conventional first connector make two-point contact, while the pair of contacts 51 and 56 of the second conventional connector make a planar contact.

[0012]

In the conventional first connector, when the pair of contacts 31, 35 are connected to the pair of electronic components, the bending portions 34, 38 are moved from the position shown in FIG.
It largely moves in the left-right direction to the position of 0. For this reason, if the land of the electronic component is small, the curved portions 34 and 38 may be displaced from the land. In addition, the bending portion 34,
Since the contact force between the contact 38 and the land of the pair of electronic components depends on the repulsive force due to the inclination of the pair of contacts 31 and 35,
weak.

In the second connector of the related art, the contact force between the other ends 53 and 58 of the pair of contacts 51 and 56 and the lands of the pair of electronic components depends on the repulsive force due to the inclination of the pair of contacts 51 and 56. Because weak.

Therefore, the present invention is intended to improve the drawbacks of the conventional two connectors and to provide a connector having a strong contact force between a pair of contacts and a pair of electronic components and having good connection characteristics between the pair of contacts. Is what you do.

[0015]

The present invention employs the following means to solve the above-mentioned problems.

(1) A pair of contacts made of a leaf spring having the same shape, and an insulator having a through-hole into which the pair of contacts are inserted in a state where the pair of contacts face each other upside down are inserted, and each of the contacts is an electronic device. An end portion that contacts the component, a first flat plate portion that slides into contact with the first flat plate portion of the mating contact, a folded portion that slides in contact with the inner wall of the through hole, and a second flat plate portion. When the electronic components are connected to each other, the pair is formed integrally from the other end of the through hole provided on both sides of the through hole, the other end of the protrusion being slidably in contact with the inclined surface of the protrusion. The connector is an elastically deformed connector.

(2) The connector according to (1), wherein a protrusion provided on the first flat plate portion of each of the contacts is located between the protrusion and the one end of the mating contact.

(3) A constricted portion provided between the second flat plate portion and the other end portion of each of the contacts engages with each of the projecting portions in a state where each of the electronic components is not connected. The connector according to (1) or (2) above.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 3, the pair of contacts 1 and 9 have the same shape and are manufactured from a leaf spring by press working. In a use state, the pair of contacts 1 and 9 are overlapped in the direction of the arrow in FIG.
As shown in FIGS. 1 and 2, the insulator 17 is inserted into a large number of through holes 18 opened in the vertical and horizontal directions.

The contact 1 includes one end curved portion 2, a first flat plate portion 3, a projection 4 provided substantially at the center of the first flat plate portion 3, a folded portion 5, and a second flat plate portion 6. , Neck 7
And from the other end curved portion 8 to be integrally formed in a substantially U-shape.

As shown in FIG. 4, the insulator 1
A pair of identically shaped projections 19 and 23 are provided on the inner walls on both sides of each through hole 18 of 7 so as to face upside down. The protrusion 19 includes an inclined surface 20, a vertical surface 21, and a step 2.
2 are formed.

FIG. 4 shows an unconnected state of the pair of electronic components. The folded portion 5 and the other end curved portion 8 of the contact 1 respectively contact the inner wall of the through hole 18 of the insulator 17.
The constriction 7 is engaged with the protrusion 19. The contact 9 is the same as the contact 1. The projections 4 of the contact 1 and the projections 12 of the contact 9 reliably contact the first flat plate portions 11 and 3 of the mating contacts 9 and 1, respectively, and are close to each other. Running. The above-mentioned pair of contacts 1 and 9 are through holes 1
The structure inserted in 8 also functions to prevent the pair of contacts 1 and 9 from coming off.

In this state, a pair of contacts 1
When the pair of electronic components 27 and 29 is assembled from above and below, the electronic components 27 and 29 are connected as shown in FIG. At this time, the land 28 of the electronic component 27 is
Since the one-end curved portion 2 of the contact 1 is pushed downward, the other-end curved portion 8 and the folded portion 5 are in sliding contact with the inclined surface 20 of the projecting portion 19 and the inner wall of the through hole 18, respectively. Further, the land 30 of the electronic component 29 is connected to the one-end curved portion 10 of the contact 9.
Is pressed in the vertical direction, so that the other end curved portion 16 and the folded portion 13
Are in sliding contact with the inclined surface 24 of the projection 23 and the inner wall of the through hole 18, respectively. Further, the constricted portion 7 and the second flat plate portion 6 slightly approach the first flat plate portion 3 due to the elastic deformation of the contact 1, and the constricted portion 15 and the second flat plate portion 14 due to the elastic deformation of the contact 9. Slightly approach the first flat plate portion 11. Projection 4 of first flat plate 3 and second flat plate 11
The projections 12 are spaced apart from each other but strongly contact the contacts 9 and 1 on the other side.

When the projections 4 and 12 are formed in a semi-cylindrical shape as in the present embodiment, they play a role of stable contact resistance with a small load. Further, the projections 4 and 12 can be removed from the contacts 1 and 9 so that the first flat plate portions 3 and 11 can be brought into contact with each other over a wide area. Further, the constricted parts 7, 1
Since 5 engages with the protruding portions 19 and 23, it helps to stabilize the position of the pair of contacts 1 and 9 in the through hole 18, but is not necessarily essential. When the constricted portions 7 and 15 are omitted, the second flat plate portions 6 and 14 are extended and connected to the other end curved portions 8 and 16.

[0026]

As is apparent from the above description, the present invention has the following advantages.

(1) Since the contact force between the pair of contacts and the pair of electronic components can be increased and the connection characteristics between the pair of contacts can be improved, the connection reliability can be increased.

(2) The pair of contacts can be prevented from coming out of the through holes.

(3) The self-inductance of the connector can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a connector according to an embodiment of the present invention.

FIG. 2 is a perspective view of a part of the connector according to the embodiment of the present invention.

FIG. 3 is a perspective view of a pair of contacts in the connector according to the embodiment of the present invention.

FIG. 4 is a cross-sectional view of the connector according to the embodiment of the present invention and a pair of electronic components, showing an unconnected state.

FIG. 5 is a cross-sectional view of the connector according to the embodiment of the present invention and a pair of electronic components, showing a connection state.

FIG. 6 is a cross-sectional view showing an unconnected state of a conventional first connector.

FIG. 7 is a perspective view of a contact in a conventional first connector.

FIG. 8 is a cross-sectional view showing an unconnected state of a conventional first connector. 7 is a cross-sectional view in a direction orthogonal to the direction of the cross-sectional view of FIG.

FIG. 9 is a plan view of a conventional first connector.

FIG. 10 is a sectional view showing a connection state of a conventional first connector.

FIG. 11 is a perspective view of a contact in a conventional second connector.

FIG. 12 is a cross-sectional view showing an unconnected state of a conventional second connector.

[Explanation of symbols]

 1, 9 Contact 2, 10 One end curved portion 3, 11 First flat plate portion 4, 12 Projection 5, 13 Folded portion 6, 14 Second flat plate portion 7, 15 Constricted portion 8, 16 Other end curved portion 17 Insulator 18 Through hole 19,23 Projection 20,24 Inclined surface 21,25 Vertical surface 22,26 Step 27,29 Electronic component 28,30 Land

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 13/24 H01R 12/00-12/38

Claims (3)

(57) [Claims] 1. A pair of contacts made of a leaf spring having the same shape, and an insulator having a through-hole into which the pair of contacts are superimposed and inserted upside down so as to be inserted, wherein each of the contacts is an electronic component. A first flat plate portion slidingly contacting the first flat plate portion of the mating contact; a folded portion slidingly contacting the inner wall of the through hole; a second flat plate portion; When the electronic components are connected to each other, the pair of contacts are formed integrally with each other in a substantially U-shape from the other end portion that slides on the inclined surface of each protrusion provided on both sides of the through hole. Is a connector characterized by being elastically deformed and crimped. 2. The contact provided on the first flat plate portion of each of the contacts is located between the protrusion and the one end of the counterpart contact.
The connector described. 3. A constricted portion provided between the second flat plate portion and the other end portion of each contact engages with each of the projecting portions in a state where each of the electronic components is not connected. The connector according to claim 1 or 2, wherein