JP2001351707A - Card edge connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To insert two circuit boards, using zero insertion force without making soldered connections, thus preventing damage to electrodes and contacts and preventing the narrowing of intervals therebetween and contact failures. SOLUTION: A plurality of contacts 100 are provided, each having both a spring part 130 connecting contact parts 110 and 120 together into a U-form and a holding and fixing part 140. An insulator 300 is provided, in which a contact holding part 310 for holding and fixing the contacts 100 by means of the holding and fixing part 140 and aligning the contacts, two parallel planes, and a partition plate 330 connecting with the planes and including two slopes getting closer together as they approach one side are arranged, so that when circuit boards 800 and 900 are inserted along the two slopes, the interval between the inserted parts is about equal to or greater than the thickness of each circuit board. When the circuit boards are held parallel to each other, the contact parts 110 and 120 are pressed into contact with the electrodes of the circuit boards.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card edge connector, and more particularly, to a card connector in which a plurality of electrodes are arranged along one side of a first circuit board and a second circuit board. It belongs to a card edge connector that holds these circuit boards in parallel with each other and electrically connects the circuit boards.

[0002]

2. Description of the Related Art In a conventional card edge connector for electrically connecting a first circuit board and a second circuit board, an example of a relatively simple and inexpensive structure (first example) is shown in FIG. 4
As shown in (a) and (b), it is of a type that is connected to one circuit board by soldering.

In the example shown in FIG. 4A, soldering portions of a plurality of contacts 100x are arranged so as to protrude outward along one side surface of the insulator 300x, and the contact portions are formed on the insulator 300x. The plurality of contacts 100x are arranged and held and fixed to the insulator 300x. The holding and fixing portions are held and fixed to the insulator 300x. Then, the soldered portions of the plurality of contacts 100x are soldered (500) to the plurality of electrodes of the circuit board 900x, and the card edge connector is connected to the circuit board 900x.
To be mounted and implemented.

When the circuit board 800x is mounted and fitted to the card edge connector, the circuit board 800x
Is inserted obliquely into the insulator 300x to reduce the insertion force (substantially zero) to prevent damage to the contacts and the like, and then to move the plurality of contacts 100x in parallel with the circuit board 900x. Is brought into pressure contact with the corresponding electrode of the circuit board 800x. In this state, the circuit boards 800x and 900x are held and fixed to each other and are electrically connected.

In the example shown in FIG. 4 (b), a plurality of first contacts 100y and a plurality of second contacts 200y are provided on an insulator 300y on opposite sides, and their respective soldered portions are placed outside. The respective contact portions are arranged inside the insulator 300y, and the respective holding and fixing portions are held and fixed, arranged and held and fixed. And a plurality of first
Contact 100y and the plurality of second contacts 20
The soldering portion 0y is connected by soldering to a plurality of electrodes of the circuit board 900y, and the card edge connector is mounted on the circuit board 900y.

The circuit board 8 to this card edge connector
The mounting and fitting of 00y, the holding and fixing between the circuit boards 800y and 900y, and the electrical connection are the same as those in the case of FIG. In these examples, a plurality of contacts (100x, 1
00y, 200y) to the circuit board (900x, 900y).
It is necessary to perform the soldering connection in step y), which requires tools, equipment, and work, which complicates the electrical connection between the two circuit boards. Therefore, a card edge connector has been introduced, which can easily electrically connect two circuit boards without using a tool or equipment.

FIG. 5 shows a card edge connector which can electrically connect two circuit boards by simply inserting the two circuit boards (second conventional example). The card edge connector of the second example includes a plurality of contacts 1
00z and an insulator 300z for arranging, holding and fixing the plurality of contacts 100z. Details of these components are as follows.

First, a substrate connector portion including a plurality of electrodes arranged and formed on one surface of a (first) circuit board 800z is inserted into each of the plurality of contacts 100z. (2) a first holding / contacting portion 151 that holds and presses the plurality of electrodes in correspondence and pressure while holding the connector portion from both sides, and a first spring portion 131 that connects these in a U-shape; Circuit board 90
0z, a board connector part including a plurality of electrodes arranged and formed on the surface thereof is inserted along one side, and the board connector part is sandwiched from both sides, and at the same time, correspondingly and in pressure contact with the plurality of electrodes. Second clamping / contact portion 15
2 and a second spring portion 132 connecting these in a U-shape.
And the holding and fixing portion 140 connecting the first spring portion 131 and the second spring portion 132 to each other in a U-shape including the first and second spring portions 131 and 132.
z, and are integrally formed of an elastic conductor (metal or the like).

The insulator 300z includes a plurality of slits 320z for inserting, holding and fixing a plurality of contacts 100z, and a first board insertion portion (symbols and names are omitted) into which the first circuit board 800z is inserted. , A second circuit board insertion portion (symbol,
(The name is omitted in the drawing), and the first holding / contact portion 151 of the plurality of contacts 100z
And its second pinching / contacting portion 1
52 is inserted into the corresponding slit 320z so that the holder 52 is disposed in the second substrate insertion portion, and the holding and fixing portion 140
Hold and fix with z.

In the card edge connector of the second example, two circuit boards 800z and 900z are inserted in parallel with each other, and these circuit boards 8
00z and 900z are sandwiched and held from both sides of the board connector portion.

In the card edge connector according to the second example, the board connector portion is sandwiched between and makes pressure contact with its electrodes, so that the opposed edge portions are narrower than the thickness of the circuit board 800z (900z). Pair sandwiching / contact part 151
Since the board connector is inserted between (152), the insertion force increases, and the contact 100
There is a risk of damaging the electrodes of the z connector and the board connector.
Since it is inserted into z and held and fixed, it takes time to assemble it. In order to solve these problems, FIG.
As shown in (a) and (b), a plurality of pattern electrodes made of an elastic metal conductor 700 are formed on an insulating film 600 and are bent.
The first and second board connector insertion portions 651 and 652 are formed so that the board insertion directions intersect on the extension line thereof at the same level as the thickness dimensions of 0z and 900z. After the circuit boards 800z and 900z are inserted into the board connector insertion portions 651 and 652, the circuit boards 8
00z and 900z are held by the substrate holding member 400z so as to be parallel to each other, so that the insulating film 60
0 and the plurality of electrodes of the board connector portion of the circuit boards 800z and 900z by the bending force of the elastic metal conductor 700;
There is an example (third conventional example) in which a plurality of pattern electrodes made of an elastic metal conductor 700 are brought into pressure contact with each other (for example, see Japanese Patent Application Laid-Open No. 9-320707).

[0012]

In the first example, the conventional card edge connector described above has a plurality of contacts 1.
00x, 100y, 200y to the circuit boards 900x, 9
Since it has a configuration and structure for soldering connection to 00y, tools and equipment and work for it are required,
There is a problem that the electrical connection work between the two circuit boards becomes complicated, and in the second example, the circuit boards 800z, 9
A pinch / contact portion 1 for pinching each of the 00z board connector portions from both surfaces and making pressure contact with the electrodes.
Since the board connector portion is inserted into the board connectors 51 and 152, there is a problem that the insertion force is increased and the electrodes of the board connector portion and the holding / contact portions 151 and 152 of the contacts 100z may be damaged. The problem that the distance between the two circuit boards cannot be reduced because the two circuit boards are sandwiched, and the sandwiching / contact portions 151 and 152 of the contacts 100z are formed by the spring portions 131 and 132 and There is a problem that a plurality of electrodes cannot be formed on both sides of the board connector portion to be multi-core because the connection is made by the holding and fixing portion 140z. In the third example, the elastic metal conductor is formed on the insulating film 600. A plurality of pattern electrodes are formed and bent by the method 700, and the size of the board insertion opening is substantially equal to the thickness of the circuit board, and the board insertion method is There is formed a board connector insertion portion 651 so as to intersect By extension, and then these are led shape, these substrates connector insertion portion 65
After inserting the board connector portions of the respective circuit boards into 1,652, these circuit boards are held in parallel with each other, so that the insulating film 600 and the elastic metal conductor 700 are bent by the bending force. Since the structure and structure of the pattern electrode 700 are brought into pressure contact with each other, the insertion force is small and the electrodes and contacts on the circuit board can be prevented from being damaged.
Since the plurality of pattern electrodes of 00 are formed on one plane of the insulating film 600 and are connected to each other, it is necessary to press the flatness with high precision, and if the flatness precision is reduced or deformed, In addition, there is a risk that a contact failure may occur, and the insulating film 600 and the elastic metal conductor 700 are bent to obtain a contact pressure between the electrode and the contact by the force. There is a problem in that the reduction of the interval between them is limited.

[0013] An object of the present invention is to make it possible to easily connect two circuit boards electrically without soldering, and to insert the circuit board with zero insertion force, thereby making it possible to connect the circuit boards. It is possible to prevent the electrodes of the circuit board from being damaged, and at the same time, to narrow the distance between the two circuit boards, to eliminate the risk of poor contact, and to easily connect the electrodes on both sides of the board connector. Accordingly, an object of the present invention is to provide a card edge connector which can be further multi-core.

[0014]

According to a first aspect of the present invention, there is provided a card edge connector comprising a plurality of first and second circuit boards arranged along one side on one surface thereof. A board connector portion including an electrode is inserted, and the first circuit board and the second circuit board are held in parallel with each other and such that the electrode forming surface of the board connector faces outside, and the first circuit board and the second circuit board are held together. A card edge connector for electrically connecting a circuit board and a second circuit board, wherein the card edge connector has the following configurations to achieve the above object. (A) a first contact portion for contacting and connecting to a corresponding electrode of the first circuit board, and a second contact portion for contacting and connecting to a corresponding electrode of the second circuit board, respectively. And a spring portion for connecting the first contact portion and the second contact portion in a U-shape, and a holding and fixing portion provided at a predetermined portion of the spring portion, A plurality of contacts for connection between outer electrodes integrally formed of an elastic conductor; (b) when the board connector portions of the first circuit board and the second circuit board are inserted and held, A board connector holding portion including a board tip holding wall for contacting a tip portion of the connector, and the plurality of outer electrode connection contacts are provided with first and second contact portions in the board connector holding portion. So that they can be placed and elastically displaced A first contact holding portion that is held, fixed and arranged by the holding and fixing portion, and a first circuit board that holds the first circuit board and the second circuit board in parallel with each other by contacting their inner surfaces. A partition including a first plane and a second plane, and a first slope and a second slope connected to the first plane and the second plane, respectively, and the distance between the first plane and the second plane is reduced as approaching one side. The first slope and the second slope of the partition plate and the one side portion are provided between the first contact portion and the second contact portion of the plurality of outer electrode connection contacts. A predetermined gap is arranged between one side and a board tip holding wall of the board connector holding section, and a gap is provided between the first slope and its extension face and the first contact section. Is equal to or greater than the thickness dimension of the first circuit board, The distance between the second inclined surface and its extension surface and the second contact portion is substantially equal to or greater than the thickness dimension of the second circuit board, and the first plane and its extension surface The distance between the first contact portion and the second contact portion is smaller than the thickness dimension of the first circuit board, and the distance between the second contact surface and the second plane and the extension surface thereof is the second contact portion. An insulator arranged so as to be narrower than the thickness of the circuit board of No. 2.

A card edge connector according to a second aspect of the present invention comprises a first circuit board and a second circuit board.
A board connector portion including a plurality of electrodes arranged and formed on one surface thereof is inserted along the side, and the first circuit board and the second circuit board are connected in parallel with each other and the electrodes of the board connector are connected to each other. A card edge connector for holding a forming surface inside and electrically connecting between a first circuit board and a second circuit board. It is characterized by having. (A) a first contact portion for contacting and connecting to a corresponding electrode of the first circuit board, and a second contact portion for contacting and connecting to a corresponding electrode of the second circuit board, respectively. And approximately U between the first contact portion and the second contact portion.
The first U-shaped opening is connected to the first
A spring portion having a shape in which the distance between the contact portion and the opening end including the second contact portion increases as the distance from the contact portion increases. When the board connector portions of the first circuit board and the second circuit board are inserted and held, the outer surfaces of the first and second circuit boards are brought into contact with each other. A board connector holding section including a first board outer holding wall and a second board outer wall, and a board tip holding wall that abuts the board connector tip portions of the first and second circuit boards during insertion and holding of the board. A first plane parallel to a plane including the wall surface of the first substrate outer surface holding wall and having an interval larger than the thickness dimension of the first circuit board, and a wall surface of the second substrate outer surface holding wall. Parallel to the plane containing A second plane larger than the thickness dimension of the second circuit board, and a first slope and a second slope connected to each of the first and second planes, and the distance between the first and second planes is reduced as approaching one side. A plurality of the inner-electrode connection contacts, each of which has a first contact portion protruding from an extension surface of the first slope in a portion forming the first plane and the second plane. And the second contact portions thereof protrude from the second plane without protruding from the extension surface of the second slope, and are arranged so as to be elastically displaceable. A partition plate provided with a contact holding portion to be fixed, wherein a first slope and a second slope of the partition plate and a portion of one side are provided in the board connector holding portion with the one side and the one side. Set in advance between the substrate tip holding wall The minimum distance between the first inclined surface and its extension surface and the first substrate outer surface holding wall is set to be equal to or greater than the thickness dimension of the first circuit board. A minimum distance between the second inclined surface and its extension surface and the second substrate outer surface holding wall is equal to or greater than a thickness dimension of the second circuit board, and the first substrate An interval between a plane including the wall surface of the outer surface holding wall and the first contact portion is smaller than a thickness dimension of the first circuit board, and a plane including the wall surface of the second substrate outer surface holding wall and the second surface. The distance between the second contact portion and the second contact portion is the second
Insulators arranged to be narrower than the thickness of the circuit board

According to a third aspect of the present invention, there is provided a card edge connector comprising: a first circuit board and a second circuit board;
A board connector portion including a plurality of electrodes arranged and formed on both sides thereof is inserted along the side to hold the first circuit board and the second circuit board in parallel with each other.
A card edge connector for electrically connecting between the first circuit board and the second circuit board, the plurality of electrodes being arrayed on outer surfaces of the first circuit board and the second circuit board, respectively. And a first contact portion for contact-connecting with a corresponding electrode on an inner surface of the first circuit board, in addition to the card edge connector of the first invention, wherein A second contact portion for contacting connection with a corresponding electrode on the inner surface of the second circuit board;
And the second contact portion are connected in a substantially U-shape. On the substantially U-shaped opening side, the closer to the opening end including the first contact portion and the second contact portion, And a spring portion having a shape with a widened interval, wherein a plurality of contacts for connection between the inner electrodes, which are integrally formed of an elastic conductor, are connected to a first plane and a second plane of a partition plate of the insulator. The first contact portion is formed on the first portion of the partition plate.
Protruding from the first plane without protruding from the extension surface of the slope of the second plane, and each second contact portion does not protrude from the extension surface of the second slope of the partition plate. , And are arranged and held so as to be elastically displaceable.

Further, in addition to the card edge connector of the first invention, the second invention or the third invention of the present application, the first circuit board and the second circuit board are held and fixed in parallel with each other.
It comprises a substrate holding member.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In a first embodiment of the present invention, a plurality of electrodes arrayed and formed on one surface of a first circuit board and a second circuit board along one side thereof. And the first circuit board and the second circuit board are held in parallel with each other and with the electrode forming surface of the board connector facing outside. A card edge connector for electrically connecting between the second electrode and the second circuit board, comprising: a plurality of outer electrode connection contacts and an insulator;
Details of these components are as follows.

Each of the plurality of outer electrode-to-electrode connection contacts has a first contact portion for making contact connection with a corresponding electrode of the first circuit board, and a corresponding contact electrode of the second circuit board. A second contact portion for contact connection, a spring portion for connecting the first contact portion and the second contact portion in a U-shape, and a spring portion provided at a predetermined portion of the spring portion And a holding / fixing portion, and are integrally formed of an elastic conductor.

The insulator includes a board tip holding wall for abutting the tip of the board connector when the board connector portion of each of the first circuit board and the second circuit board is inserted and held. The board connector holding portion and the plurality of outer electrode connection contacts are respectively held and fixed such that the first contact portion and the second contact portion are disposed in the board connector holding portion and can be elastically displaced. And a first holding unit that holds the first circuit board and the second circuit board in parallel with each other by contacting the inner surfaces thereof.
And a partition plate including a first slope and a second slope connected to the first plane and the second plane, respectively, and the distance between the first and second planes is reduced as approaching one side. Wherein the first slope and the second slope of the partition plate and the one side portion are located between the first contact portion and the second contact portion of the plurality of outer electrode-to-electrode connection contacts. A predetermined gap is arranged between the one side and the board tip holding wall of the board connector holding unit,
The distance between the first slope and the extension thereof and the first contact portion is equal to or greater than the thickness of the first circuit board, and the second slope and the extension thereof are provided. A distance between the first contact portion and the first contact portion is equal to or greater than a thickness dimension of the second circuit board; The distance between the second contact surface and the second plane is smaller than the thickness of the second circuit board, and the distance between the second plane and its extended surface and the second contact portion is smaller than the thickness of the second circuit board. It is arranged to be narrow.

With such a configuration and structure,
By making it possible to easily electrically connect the two circuit boards without soldering and without any tools or equipment for that purpose, by inserting the two circuit boards diagonally The insertion force can be reduced to zero to prevent the contacts and the electrodes of the board connector from being damaged. In addition, the two circuit boards and the partition plate can be connected to the first and second contacts of one contact. Since the structure is such that these circuit boards are electrically connected to each other by being sandwiched between the contact portions, the interval between the circuit boards can be reduced, and since the contact portions of the plurality of contacts are independent of each other, In addition, it is possible to apply an appropriate contact pressure to each of them, and it is possible to eliminate a risk of occurrence of poor contact.

A second embodiment of the present invention is directed to a board connector portion including a plurality of electrodes arrayed on one surface along one side of each of a first circuit board and a second circuit board. Is inserted to hold the first circuit board and the second circuit board in parallel with each other and with the electrode forming surface of the board connector facing inward. A card edge connector for electrically connecting with a circuit board, the card edge connector including a plurality of contacts for connection between inner electrodes and an insulator, and details of these components are as follows.

Each of the plurality of inner-electrode connection contacts has a first contact portion for contacting connection with a corresponding electrode of the first circuit board, and a corresponding contact electrode of the second circuit board. A second contact portion for contact connection is connected in a substantially U-shape between the first contact portion and the second contact portion, and the first U-shaped opening side connects the first contact portion with the first contact portion. A spring portion having a shape in which the distance between the contact portion and the second contact portion is increased as approaching the opening end including the contact portion and the second contact portion.

When the board connector portions of the first circuit board and the second circuit board are inserted and held, the insulator contacts the outer surfaces of the first and second circuit boards. Let the first parallel to each other
A substrate outer surface holding wall and a second substrate outer surface holding wall, and
A board connector holding portion including a board tip holding wall for bringing the board connector tip portions of the first and second circuit boards into contact when the board is inserted and held, and a plane parallel to the plane including the wall surface of the first board outer surface holding wall. The distance between the first plane and the plane including the wall surface of the second substrate outer surface holding wall is larger than the thickness of the first circuit board, and the distance is parallel to the thickness of the second circuit board. A second plane wider than the dimension, and a first slope and a second slope connected to each of the first and second planes, and the distance between the first plane and the second plane decreases as approaching one side; The plurality of inner electrode-to-electrode connection contacts are provided on the portion forming the second plane, and the respective first contact portions are not protruded from the extension surface of the first slope but are protruded from the first plane. Protruding, the respective second contact portions of which A partition plate provided with a contact holding portion that projects from the second flat surface without protruding from the extension surface of the second inclined surface and is arranged and fixed so as to be elastically displaceable. The first slope, the second slope, and one side portion are disposed in the board connector holding portion with a preset gap between the one side and the board tip holding wall, and A minimum distance between the first slope and its extension surface and the first board outer surface holding wall is equal to or greater than a thickness dimension of the first circuit board, and the second slope and its extension A minimum distance between the surface and the second board outer surface holding wall is equal to or greater than a thickness dimension of the second circuit board, and a plane including a wall surface of the first board outer surface holding wall; The distance between the first contact portion and the first contact portion is the thickness dimension of the first circuit board. Ri narrow spacing between the planar and the second contact portion including the wall surface of the second substrate outer surface retaining wall is arranged to be narrower than the thickness of the second circuit board.

With such a configuration and structure,
Between the two circuit boards, each of these circuit boards,
The contact between the electrodes formed on the inner surface is press-contacted and connected between the two electrodes. Can be narrow. Other functions and effects are the same as those of the first embodiment.

According to a third embodiment of the present invention, a board connector portion including a plurality of electrodes arrayed on both sides of one side of a first circuit board and a second circuit board is inserted. A card edge connector for holding the first circuit board and the second circuit board in parallel with each other and electrically connecting the first circuit board and the second circuit board, It has a configuration and structure in which the plurality of contacts for connection between inner electrodes of the second embodiment are coupled to the first embodiment described above.

With such a configuration and structure,
It has the same function and effect as the above-described first and second embodiments, and at the same time, the electrical connection to the electrodes formed on both surfaces of each of the two circuit boards is facilitated, and the multi-core connection is further achieved. There is an operational effect that it can be performed.

[0028]

Next, embodiments of the present invention will be described with reference to the drawings. FIGS. 1A and 1B are a partial cross-sectional plan view and a cross-sectional side view taken along the line AA of the first embodiment of the present invention. The first embodiment is different from the first circuit board 800 in FIG.
And a board connector portion including a plurality of electrodes arrayed on one surface along one side of each of the second circuit board 900 and the second circuit board 900, and these circuit boards 800 and 900 are inserted.
Are held in parallel with each other and with the electrode forming surface of the board connector on the outside.
A card edge connector for electrically connecting between the outer electrodes, a plurality of contacts 100 for connection between outer electrodes,
It has a configuration including an insulator 300 and a substrate holding member 400, and details thereof are as follows.

A plurality of contacts 10 for connection between outer electrodes
0 (hereinafter, simply referred to as contacts 100) are first contact portions 110 for contacting and connecting to corresponding electrodes (of the board connector portion) of the circuit board 800, respectively. A) a second contact 120 for contacting connection with a corresponding electrode;
Spring portion 130 connecting between the contact portion 120 and the contact portion 120
And a holding and fixing portion 140 provided at an intermediate portion of the U-shaped vertical bar portion of the spring portion 130 so as to protrude inwardly of the U-shape, and an elastic conductor (for example, metal) It is formed integrally.

The insulator 300 is mounted on the circuit board 80.
A board connector holding portion 340 including a board tip holding wall 341 for contacting the tip portion of the board connector at the time of inserting and holding the board for inserting and holding the board connector portion of 0,900; The contacts 100 are inserted into the corresponding slits 320 and held by the respective holding / fixing portions 140 so that the contact portions 110 and 120 are disposed within the board connector holding portion 340 and can be elastically displaced.
First and second planes for fixing and arranging the contact holding portion 310 and the circuit boards 800 and 900 in parallel with each other by contacting the inner surfaces thereof, and each of these two planes. And a partition plate 330 including a first slope and a second slope, the spacing of which decreases as approaching one side.
Are disposed between the contact portions 110 and 120 of the plurality of contacts 100 with a predetermined gap between one side and the substrate tip holding wall 341. The distance between the first contact surface 110 and the first slope and the extension surface thereof is equal to or greater than the thickness dimension of the first circuit board 800, and the distance between the second slope and the extension surface thereof is The interval between the second contact portion 120 and the second circuit board 9
00, the distance between the first contact surface 110 and the first plane and its extended surface and the first contact portion 110 is smaller than the thickness of the first circuit board 800, The distance between the second contact portion 120 and the plane of the
Are arranged to be smaller than the thickness dimension of the circuit board 900 of FIG.

The board holding member 400 holds the two circuit boards 800 and 900 in parallel with each other when holding the two circuit boards 800 and 900 by holding and fixing the side of the side opposite to the board connector.

In the first embodiment, the circuit board 80
As shown by a two-dot chain line and an arrow in FIG. 1B, the substrate connector portion 0,900 has a first slope and a first contact portion 1.
10 and between the second inclined surface and the second contact portion 120 such that the inner surface thereof is in contact with each inclined surface, and one side thereof (the front end of the circuit board) is connected to the substrate. It is inserted until it comes into contact with the tip holding wall 341. Thereafter, the circuit boards 800 and 900 are rotated so that the inner surfaces thereof come into contact with the first and second planes of the partition plate 330 so as to be parallel to each other, and the side opposite to the board connector Is held and fixed by the substrate holding member 400.

When the circuit boards 800 and 900 are inserted, the distance between the slopes and the contact portions (110 and 120) is equal to or greater than the thickness of the circuit boards 800 and 900. It can be inserted with zero force, and the contact portions 110 and 120 of the contact 100 and the circuit board 80
The electrodes of the 0,900 board connector are not damaged. Further, when the circuit boards 800 and 900 are held in parallel with each other, the partition plate 33 contacting the inner surface thereof.
Since the distance between the first and second planes 0 and the extension surfaces thereof and the first and second contact portions 110 and 120 is smaller than the thickness dimension of these circuit boards, the contact portion 110 ,
120 makes pressure contact with the corresponding electrodes of these circuit boards 800 and 900. At this time, the contact portions 110 and 120
Is a slit 320 of each of the plurality of contacts 100.
Since the displacements are not hindered and are independent of each other, they come into pressure contact with the corresponding electrodes with appropriate contact pressures, and no contact failure occurs.

In the first embodiment, two circuit boards 800 and 900 and a partition plate 330 are sandwiched between the contact portions 110 and 120 of one contact 100, and these circuit boards 800 and 900 The circuit boards 800 and 90 are electrically connected to each other.
The interval between zeros can be narrowed. Also, as can be seen from the above description, there is no need for a soldering operation or tools and equipment for the soldering operation, and a simple operation of inserting two circuit boards and holding them in parallel with each other is simple.
The two circuit boards can be electrically connected.

FIGS. 2A and 2B are a partial cross-sectional plan view and a cross-sectional side view taken along the line AA of the second embodiment of the present invention. In the second embodiment, the first circuit board 800
a and a second circuit board 900a, a board connector portion including a plurality of electrodes arrayed on one side thereof is inserted along one side of each of the circuit boards 800a and 900a.
00a are held in parallel with each other and the electrode forming surface of the board connector faces inward.
And a plurality of contacts 2 for connection between inner electrodes.
00, the insulator 300a, and the substrate holding member 40
0, and details thereof are as follows.

A plurality of contacts 20 for connection between inner electrodes
0 (hereinafter simply referred to as a contact 200) is a first contact portion 210 for contacting and connecting with a corresponding electrode (of the board connector portion) of the circuit board 800a, and a contact portion with a corresponding electrode of the circuit board 900a. The second contact portion 220 for connection and the contact portions 210 and 220 are connected to each other in a substantially U-shape. On the substantially U-shaped opening side, the closer to the opening end including these contact portions 210 and 220, And a spring portion 230 having such a shape that the interval is widened, and is integrally formed of an elastic conductor (metal or the like).

The insulator 300a is connected to the circuit board 80.
When the circuit board connectors of the circuit boards 800a and 900a are inserted and held, respectively.
A first substrate outer surface holding wall 342 and a second substrate outer surface holding wall 343 which are in parallel with each other,
In addition, these circuit boards 800a, 9
A board connector holding portion 340a including a board tip holding wall 341 for abutting a board connector tip portion of the first board connector 340a;
The first surface of the first circuit board 800a is parallel to a plane including the wall surface of the board outer surface holding wall 342 and the interval thereof is larger than the thickness dimension of the first circuit board 800a.
And a second plane parallel to the plane including the wall surface of the second substrate outer surface holding wall 343 and having an interval larger than the thickness dimension of the second circuit board 900a, and the first and second planes It includes a first slope and a second slope, which are connected to each other and the distance between them becomes smaller as approaching one side, and a plurality of grooves 33 are formed in a portion forming the first plane and the second plane.
1a is formed, a plurality of contacts 200 are inserted and held and fixed in these grooves 331a, and the contact portions 21 are formed.
A partition plate 330a provided with a contact holding portion in which a portion 0, 220 protrudes from the first and second planes and does not protrude from an extension surface of the first and second slopes;
The first and second slopes and one side portion of the partition plate 330a are disposed in the board connector holding portion 340a.
A predetermined gap is provided between the one side and the substrate tip holding wall 341, and a minimum distance between the first inclined surface and its extension surface and the first substrate outer surface holding wall 342. Is equal to or greater than the thickness dimension of the first circuit board 800a, and the minimum distance between the second slope and its extension and the second board outer surface holding wall 343 is the thickness of the second circuit board 900a. The distance between the first contact portion 210 and a plane including the wall surface of the first substrate outer surface holding wall 342 is smaller than the thickness dimension of the first circuit board 800a. The distance between the plane including the wall surface of the second substrate outer surface holding wall 343 and the second contact portion 220 is the second circuit substrate 900.
It is arranged to be smaller than the thickness dimension of a.

The board holding member 400 holds the two circuit boards 800a and 900a in parallel with each other when holding the circuit boards 800a and 900a by holding and fixing the side of the side opposite to the board connector.

In the second embodiment, the circuit board 80
As in the first embodiment, the board connector portions 0a and 900a are inserted obliquely so that the inner surface thereof contacts the first and second slopes of the partition plate 330a.
One side (tip of the circuit board) is inserted until it contacts the board tip holding wall 341. And these circuit boards 800
a, 900a are rotated until their outer surfaces contact the substrate outer surface holding walls 342, 343, and are held and fixed in parallel by the substrate outer surface holding walls 342, 343 and the substrate holding member 400. At this time, the plurality of electrodes arranged and formed on the inner surfaces of the circuit boards 800a and 900a are connected under pressure by the corresponding contacts 200.

When the circuit boards 800a and 900a are inserted, the minimum distance between the board outer surface holding walls 342 and 343 with respect to the first and second slopes of the partition plate 330a is substantially equal to the thickness of these circuit boards. Since the contact 200 does not protrude from the extension of the circuit board 80,
0a and 900a can be inserted with no insertion force, and the electrodes and contacts 200 are not damaged.
Also, the contact portions 21 of each of the plurality of contacts 200
0,220, without its displacement being impeded, and
Since these are independent of each other, they come into contact with the corresponding electrodes at appropriate contact pressures, and no contact failure occurs.

A contact 200 held and fixed to a partition plate 330a is provided between the circuit boards 800a and 900a.
Is merely sandwiched, so that the space between these circuit boards can be reduced. The point that two circuit boards can be easily electrically connected without soldering is also the same as in the first embodiment.

FIGS. 3A and 3B are a partial cross-sectional plan view and a cross-sectional side view taken along the line AA of the third embodiment of the present invention. In the third embodiment, in addition to the card edge connector of the above-described first embodiment, a partition plate 330 of the insulator is formed by forming a plurality of grooves 331b in portions forming the first and second planes. As the partition plate 330b, the plurality of contacts 200 for connection between the inner electrodes in the second embodiment described above are inserted into the plurality of grooves 331b of the partition plate 330b.
Each of the first contact portions 210 is the first contact portion 210 of the partition plate 330b.
The second contact portions 220 protrude from the second plane without protruding from the extension surface of the second slope without protruding from the extension surface of the second slope. A configuration in which it is held and fixed so that it can be displaced,
It has a structure.

In the third embodiment, the first
In addition to having the same operation and effect as the embodiments and the second embodiment, the electrical connection between a plurality of electrodes formed on both surfaces of each of the two circuit boards is facilitated, and the multi-core connection is further improved. There is an effect that can be.

[0044]

As described above, the present invention is applicable to a case where a plurality of electrodes formed on the outer surfaces of the first and second circuit boards to be connected are electrically connected to each other. A plurality of contacts for connecting between the outer electrodes, each having a spring portion connecting the first and second contact portions in a U-shape, can be elastically displaced from the first and second contact portions to the insulator by the insulator. The insulator is provided with the first and second planes parallel to each other, and the first and second slopes which are connected to these planes and whose distance decreases as approaching one side. A partition plate including the inclined surface and one side portion so as to be arranged between the first and second contact portions of the plurality of contacts for connection between the outer electrodes; The distance between the extension surface and the first contact portion is the distance between the first contact to be inserted and connected. The distance between the second inclined surface and its extended surface and the second contact portion is the same as or larger than the thickness of the second circuit board to be inserted and connected. The distance between the first plane and its extended surface and the first contact portion is smaller than the thickness dimension of the first circuit board, and the distance between the second plane and its extended surface and the The distance between the second contact portion and the second contact portion is smaller than the thickness dimension of the second circuit board. After being inserted while being in contact with the inclined surface of No. 2, the first and second circuit boards are easily inserted with zero insertion force without soldering connection by holding and fixing them so as to be parallel to each other. This can prevent the contact part and the substrate electrode from being damaged, and at the same time, There is an effect that the distance between the boards can be reduced and the occurrence of poor contact can be prevented, and a plurality of electrodes formed on the inner surfaces of the first and second circuit boards, respectively. When electrical connection is made between the plurality of inner electrodes, each of the first and second contact portions is provided in a substantially U-shape and has a spring portion so as to become wider toward the opening side. The contact for inter-connection is formed by a first and second parallel planes parallel to each other and a partition plate including the first and second slopes which are connected to these planes and whose interval decreases as approaching one side. Provided on the insulator, the contact portion is held and fixed on the plane portion of the partition plate so that the contact portion protrudes from the flat surface without protruding from the extension surface of the slope, and the insulator has first and second portions. In contact with the outer surface of each of the two circuit boards A board connector holding portion including first and second board outer surface holding walls for holding them in parallel and a board tip holding wall with which the tip of the circuit board contacts is provided. The second slope and one side portion are the first slope.
The minimum distance between the inclined surface and its extended surface and the first substrate outer surface holding portion is equal to or greater than the thickness dimension of the first circuit board, and the second inclined surface and its extended surface and the second substrate The minimum distance between the first holding portion and the outer surface holding portion is equal to or greater than the thickness dimension of the second circuit board, and the first space between the first contact portion and the flat surface including the wall surface of the first board outer surface holding wall. The interval is smaller than the thickness dimension of the first circuit board, and the interval from the first plane is larger than the thickness dimension of the first circuit board. The structure and the structure are such that the distance from the contact portion is smaller than the thickness of the second circuit board, and the distance from the second plane is larger than the thickness of the second circuit board. , The second circuit board, the inner surface of which is the first,
After being inserted into contact with the second inclined surface, by holding and fixing them so as to be parallel to each other, the same effect as in the case of the above-described connection between the outer electrodes is obtained. By incorporating a plurality of contacts for connection between the inner electrodes in the case of the connection between the inner electrodes described above, the same effect as in the above case can be obtained. In this case, it is possible to easily connect a plurality of electrodes formed on both surfaces of the device, thereby enabling further multi-core connection.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional plan view and a cross-sectional side view taken along the line AA, showing a first embodiment of the present invention.

FIG. 2 is a partial cross-sectional plan view and a cross-sectional side view taken along line AA, showing a second embodiment of the present invention.

FIG. 3 is a partial cross-sectional plan view and a cross-sectional side view taken along AA, showing a third embodiment of the present invention.

FIG. 4 is a side view showing a first example of a conventional card edge connector.

FIG. 5 is a cross-sectional side view showing a second example of a conventional card edge connector.

FIG. 6 is a side view showing a third example of a conventional card edge connector before a circuit board is inserted, and a side view of a state where the card edge connector is held parallel after the insertion.

[Explanation of symbols]

100, 100x to 100z Contact 110, 120 Contact part 130, 131, 132 Spring part 140, 140z Holding and fixing part 151, 152 Nipping / contact part 200, 200y Contact 210, 220 Contact part 230 Spring part 300, 300a, 300b, 300x ３００300z insulator 310, 310z contact holding part 320, 320z slit 330, 330a, 330b partition plate 331a, 331b groove 340, 340a substrate connector holding part 341 substrate tip holding wall 342, 343 substrate outer surface holding wall 400, 400z substrate holding member 500 Solder connection part 600 Insulating film 651, 652 Board connector insertion part 700 Elastic metal conductor 710, 720 Contact part 800, 800a, 800b, 800x to 800z Circuit board 900, 900a, 900b, 900x to 900z circuit board

Claims (4)

[Claims] 1. A board connector portion including a plurality of electrodes arranged and formed on one surface along one side of each of a first circuit board and a second circuit board is inserted into the first circuit board and the second circuit board. The circuit board and the second circuit board are parallel to each other,
And a card edge connector for holding the electrode formation surface of the board connector on the outside and electrically connecting the first circuit board and the second circuit board with each other. A card edge connector comprising: (A) a first contact portion for contacting and connecting to a corresponding electrode of the first circuit board, and a second contact portion for contacting and connecting to a corresponding electrode of the second circuit board, respectively. And a spring portion for connecting the first contact portion and the second contact portion in a U-shape, and a holding and fixing portion provided at a predetermined portion of the spring portion, A plurality of contacts for connection between outer electrodes integrally formed of an elastic conductor; (b) when the board connector portions of the first circuit board and the second circuit board are inserted and held, A board connector holding portion including a board tip holding wall for contacting a tip portion of the connector, and the plurality of outer electrode connection contacts are provided with first and second contact portions in the board connector holding portion. So that they can be placed and elastically displaced A first contact holding portion that is held, fixed and arranged by the holding and fixing portion, and a first circuit board that holds the first circuit board and the second circuit board in parallel with each other by contacting their inner surfaces. A partition including a first plane and a second plane, and a first slope and a second slope connected to the first plane and the second plane, respectively, and the distance between the first plane and the second plane is reduced as approaching one side. The first slope and the second slope of the partition plate and the one side portion are provided between the first contact portion and the second contact portion of the plurality of outer electrode connection contacts. A predetermined gap is arranged between one side and a board tip holding wall of the board connector holding section, and a gap is provided between the first slope and its extension face and the first contact section. Is equal to or greater than the thickness dimension of the first circuit board, The distance between the second inclined surface and its extension surface and the second contact portion is substantially equal to or greater than the thickness dimension of the second circuit board, and the first plane and its extension surface The distance between the first contact portion and the second contact portion is smaller than the thickness dimension of the first circuit board, and the distance between the second contact surface and the second plane and the extension surface thereof is the second contact portion. An insulator arranged so as to be narrower than the thickness of the circuit board of No. 2. 2. A board connector portion including a plurality of electrodes arranged and formed on one surface of one side of each of a first circuit board and a second circuit board is inserted into each of the first circuit board and the second circuit board. The circuit board and the second circuit board are parallel to each other,
And a board edge connector for holding the electrode forming surface of the board connector on the inside and electrically connecting the first circuit board and the second circuit board with each other. A card edge connector comprising: (A) a first contact portion for contacting and connecting to a corresponding electrode of the first circuit board, and a second contact portion for contacting and connecting to a corresponding electrode of the second circuit board, respectively. And approximately U between the first contact portion and the second contact portion.
The first U-shaped opening is connected to the first
A spring portion having a shape in which the distance between the contact portion and the opening end including the second contact portion increases as the distance from the contact portion increases. When the board connector portions of the first circuit board and the second circuit board are inserted and held, the outer surfaces of the first and second circuit boards are brought into contact with each other. A board connector holding section including a first board outer holding wall and a second board outer wall, and a board tip holding wall that abuts the board connector tip portions of the first and second circuit boards during insertion and holding of the board. A first plane parallel to a plane including the wall surface of the first substrate outer surface holding wall and having an interval larger than the thickness dimension of the first circuit board, and a wall surface of the second substrate outer surface holding wall. Parallel to the plane containing A second plane larger than the thickness dimension of the second circuit board, and a first slope and a second slope connected to each of the first and second planes, and the distance between the first and second planes is reduced as approaching one side. A plurality of the inner-electrode connection contacts, each of which has a first contact portion protruding from an extension surface of the first slope in a portion forming the first plane and the second plane. And the second contact portions thereof protrude from the second plane without protruding from the extension surface of the second slope, and are arranged so as to be elastically displaceable. A partition plate provided with a contact holding portion to be fixed, wherein a first slope and a second slope of the partition plate and a portion of one side are provided in the board connector holding portion with the one side and the one side. Set in advance between the substrate tip holding wall The minimum distance between the first inclined surface and its extension surface and the first substrate outer surface holding wall is set to be equal to or greater than the thickness dimension of the first circuit board. A minimum distance between the second inclined surface and its extension surface and the second substrate outer surface holding wall is equal to or greater than a thickness dimension of the second circuit board, and the first substrate An interval between a plane including the wall surface of the outer surface holding wall and the first contact portion is smaller than a thickness dimension of the first circuit board, and a plane including the wall surface of the second substrate outer surface holding wall and the second surface. The distance between the second contact portion and the second contact portion is the second
Insulators arranged to be narrower than the thickness of the circuit board 3. A board connector portion including a plurality of electrodes arranged and formed on both sides thereof along one side of each of the first circuit board and the second circuit board, and the first and second circuit boards are inserted.
Holding the circuit board and the second circuit board in parallel with each other,
A card edge connector for electrically connecting between the first circuit board and the second circuit board, the card edge connector being arranged and formed on an outer surface of each of the first circuit board and the second circuit board. 2. The card edge connector according to claim 1, wherein each of the plurality of electrodes has a corresponding connection, and a first contact portion for making contact connection with a corresponding electrode on an inner surface of the first circuit board. And a second contact portion for contacting connection with a corresponding electrode on the inner surface of the second circuit board, and substantially U between the first contact portion and the second contact portion.
The first U-shaped opening is connected to the first
A spring portion having a shape in which the distance increases as approaching the opening end including the contact portion and the second contact portion, and a plurality of internal electrode connection contacts integrally formed of an elastic conductor. The first plane does not protrude from a portion of the partition plate of the insulator that forms the first plane and the second plane from the extension surface of the first slope of the partition plate. And the second contact portions are arranged, held and fixed so as to be elastically displaceable by projecting from the second plane without projecting from the extension surface of the second slope of the partition plate. Card edge connector. 4. The card edge connector according to claim 1, further comprising a board holding member for holding and fixing the first circuit board and the second circuit board in parallel with each other. Consisting of a card edge connector.