JP2002134202A - Receptacle for electronic parts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate occurring a contact failure between an electrode terminal of electronic parts and an electrode part of a receptacle main body by putting on and taking off of the electronic parts, and comparatively simplify a structure, and facilitate manufacturing. SOLUTION: The electrode part 10 of the receptacle main body 10b is prepared by making a punching work of an elastic plate material of a prescribed thickness, and on both ends has a pair of contacts 23, 24 respectively contacting with an electrode terminal 2a of CPU 2 which is electronic parts and contacting with an electrode terminal 17a of a printed-circuit board 17 which is a connected electronic parts, and has crawling parts 25 (25a, 25b and 25c) being successively installed in parallel, existing between the pair of contacts 23, 24 and connecting the pair of contacts 23, 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a socket for an electronic component, and more particularly, to a method in which an electronic component such as a CPU or an MPU is pressed against the socket main body to make contact between an electrode terminal of the electronic component and an electrode portion of the socket main body. The present invention relates to an electronic component socket for maintaining contact between an electrode portion of a socket body and an electrode terminal of a connected electronic component.

[0002]

2. Description of the Related Art Recently, CPUs having a large number of electrode terminals,
Electronic components such as MPUs include those having a pin grid array type electrode terminal and those having a ball grid array type electrode terminal or land grid array type electrode terminal at lower manufacturing cost. An electronic component socket having such an electrode terminal is mounted on a printed circuit board, and an electronic component socket is used to electrically connect the electrode terminal of the electronic component to a circuit of the printed circuit board (US Pat.
221,209, US Patent 5,518,410).

Heretofore, as this kind of socket for electronic parts, there has been known a socket for holding the connection between the electrode terminal of the electronic part and the electrode terminal of the socket body by pressing the electronic part against the socket body. I have. More specifically, one end edge of the socket body and one end edge of the pressing member are connected by a hinge member, the pressing member is swung about the connection position, and the pressing member presses the electronic component toward the socket body. In this state, the electronic member is fixed to the socket body by hooking an openable and closable hook as a latch mechanism attached to the other end of the pressing member to the hooking portion of the socket body, and the electrode terminal of the electronic member and There is known one that maintains contact with an electrode terminal of a socket body. By using this kind of socket for electronic components, it is possible to easily attach and detach electronic components, unlike electrode terminals that are fused by soldering by reflow or the like, and replacement or maintenance of components is easy. There is a merit of becoming.

[0004]

The shapes of the electronic components and the electrode terminals of the socket body vary depending on the material and the manufacturing process. Further, in the electronic component having a plurality of electrode terminals and the socket body, since the surface portion holding the plurality of electrode terminals has a certain area, the load applied by the pressing member that presses the electronic component against the socket body is more than one. There is a possibility that the electrode terminals may become non-uniform. In order to prevent poor contact between the electronic component and the socket body due to such individual differences of the electrode terminals themselves and uneven load, a socket having a movable contact terminal member that contacts the electrode terminal of the electronic component is used. Have been.

However, in this electronic component socket, both the certainty of the contact between the movable contact member and the support member at the set position and the ease of the return of the movable contact member to the projecting position are simultaneously satisfied. It has proven difficult and complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems. An electronic component having a relatively simple structure without causing a contact failure between an electrode terminal of the electronic component and an electrode portion of the socket body due to attachment / detachment of the electronic component. An object of the present invention is to provide a socket for parts.

[0007]

In order to attain this object, an electronic component socket according to the present invention is provided by pressing an electronic component against a socket body to thereby provide an electrode terminal of the electronic component and an electrode of the socket body. In the electronic component socket formed by connecting the electrode portion of the socket body to the electrode terminal of the connected electronic component while maintaining contact with the portion, the electrode portion of the socket body is formed by punching an elastic plate material having a predetermined thickness. A pair of contacts at both ends respectively contacting the electrode terminals of the electronic component and the electrode terminals of the connected electronic component, and a series of meandering portions interposed between the pair of contacts and connecting the pair of contacts. Have.

In the electronic component socket according to the present invention, the meandering portions include a pair of contact meandering portions located at both ends connected to the pair of contacts, respectively, and a pair of contact meandering portions located between the pair of contact meandering portions. And an intermediate meandering part having a shape larger than the contact meandering part.

In the electronic component socket according to the present invention, the meandering portion is substantially U-shaped or V-shaped.

According to this electronic component socket, the structure is relatively simple without the occurrence of contact failure between the electrode terminal of the electronic component and the electrode portion of the socket body due to the attachment / detachment of the electronic component, and the manufacturing is easy. Become. Further, according to the electronic component socket of the present invention, the structure of the electrode portion is relatively simple as compared with the conventional contact, so that the CP
When applied to U, it is possible to meet the demand for a short path (reduction in inductance and impedance) accompanying an increase in the clock frequency of the CPU, that is, an increase in the speed of the personal computer.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a CPU socket as an electronic component socket used when a CPU as an electronic component is mounted on a main board in a computer will be described below with reference to the drawings. I do.

First, with reference to FIG. 1, an outline of mounting a CPU 2 and a pressing member 3 as electronic components to an electronic component socket 1 according to an embodiment of the present invention will be described.

As shown in FIG. 1, a CPU as an electronic component
A guide member (CP) is provided on the upper surface of the electronic component socket 1 having the electrode portion 23 with which the second electrode terminal 2a (FIG. 3) is in contact.
Along the outer edge 2b of U2 and the inner side 1e of the socket body 10b in the electronic component socket 1).
2, and the pressing member 3 is mounted thereon. Fixing wires 4 and 5 (for example, metal wires) as fixing members are attached to two opposing side edges of the pressing member 3. This fixing wire 4,
5 is hooked on a fixed hook 6 provided on a side edge of the electronic component socket 1 and a movable hook 7 as a movable hook member, respectively. Then, when the operation lever 8 as an operation member is tilted from the position indicated by the broken line to the position indicated by the solid line in the drawing while the CPU 2 and the pressing member 3 are mounted, the movable hook 7 moves downward, whereby the pressing member 3 is moved. Move down, C
PU2 is pressed to the electronic component socket 1 side. A driving mechanism for moving the movable hook 7 up and down will be described later.

The pressing member is applicable as long as a fixing member such as a fixing wire can be attached thereto. For example, when a cooling device including a cooling fan 3a and a radiating fin 3b is used as a pressing member as in the example shown in FIG.
There is an advantage that a cooling device which is indispensable to the device can be securely attached.

FIG. 3 shows a CPU connected to the electronic component socket 1.
FIG. 5 is an explanatory view showing the mounting operation of the pressing member 2 and the pressing member 3. FIG.
In the state before mounting (a), the distal end of the movable hook 7 moves upward, and the distal end of the fixing wire 5 attached to the pressing member 3 is easily hooked. Then, as shown in FIG. 3B, the CPU 2 and the pressing member 3 are placed on the electronic component socket 1, and the distal end of the fixing wire 5 on the pressing member 3 side is hooked on the fixing hook 6 and fixed. To the tip of the movable hook 7
After hooking on b, the working lever 8 is swung in the direction of the arrow Rl. Then, as shown in FIG. 3 (c), a stopper 1 having an operation lever 8 formed on a side wall surface of the electronic component socket 1 is formed.
5 so that the notch 8a formed on the side surface of the operation lever 8 on the side of the electronic component socket 1 is replaced with the convex latch portion 14 formed on the side wall surface of the electronic component socket 1.
And latch. Since the working lever 8 is formed of an elastic member and is pivotally supported by the crankshaft portion 11, when the working lever 8 is swung in the direction of the arrow Rl, the working lever 8 is The operation lever 8 is formed on the side wall surface of the electronic component socket 1 by sliding along the downwardly inclined surface and swinging so as to escape to the outside, and sliding the side surface of the operation lever 8 on the convex latch portion 14. Stopper 1
5 so that the notch 8 a formed on the side surface of the operation lever 8 on the side of the electronic component socket 1 is engaged with the convex latch portion 14 formed on the side wall surface of the electronic component socket 1. Latch. By the swing of the repetition lever 8, the distal end portion 7b of the movable hook moves downward (in the direction of the arrow R4 in the figure) to urge the fixing wire 5 downward, and the CPU 2 is electrically operated via the pressing member 3. It is pressed against the component socket 1.

When the CPU 2 is to be removed from the electronic component socket 1, the processing lever 8 formed of an elastic member is swung outward so as to be separated from the side surface of the electronic component socket 1. The engagement between the notch 8a and the latch 14 of the electronic component socket 1 is released.

FIG. 2 is an explanatory view of a driving device groove for moving the movable hook 7 up and down. As shown in FIG.
The main part of the drive groove is constituted by a crank lever 12 as a booster composed of an operation lever 8 and a crank shaft part 11 which are connected to be substantially perpendicular to each other. The crankshaft 11 of the crank lever 12 is connected to the socket body 1 at one edge of the electronic component socket 1.
0b and the upper cover member 1c. In addition, the movable hook 7 is attached to the central portion of the crankshaft 11 in accordance with the rotation of the crankshaft 11.
An eccentric shaft portion 11a is formed to abut one end of the movable hook 7 so that the movable hook 7 is moved to a pressing position pressed toward the electronic component socket 1. In addition, the movable hook 7
It is mounted between the socket body 10b and the upper cover member 1c so as to be rotatable around a shaft member 7a mounted so as to penetrate the side wall.

In this drive mechanism, when the operating lever 8 is swung in the direction of arrow R1 as shown in FIG. 2 (b), the crankshaft 11 rotates in the direction of arrow R4, and accordingly the center of the crankshaft 11 is rotated. The eccentric shaft portion 11a of the portion swings in the direction of arrow R3. By the swing of the eccentric shaft 11a, the movable hook 7 whose end is in contact with the eccentric shaft 11a rotates in the direction of arrow R2 about the shaft member 7a. as a result,
As shown in FIG. 2 (c), the distal end 7b of the movable hook 7 for hooking the fixing wire 5 moves downward. A spring (not shown) is provided on the shaft member 7a of the movable hook 7 as urging means for urging the movable hook 7 to a release position where the pressing force by the pressing material is reduced or eliminated. .

In the electronic component socket 1 of the present invention, by pressing the CPU 2 as an electronic component against the socket body 10b, the electrode terminal 2a of the CPU 2 as the electronic component is pressed.
(FIG. 3A) and the electrode portions 23 of the socket body 10b (FIGS. 1, 4, 5A, 5C, and 5E) are kept in contact with each other, and the electrode portions 24 of the socket body 10b are maintained. Are connected to electrode terminals 17a of a printed circuit board 17 which is a connected electronic component.

The electrode terminals 2a of the CPU 2, which is an electronic component, are constituted by ball grid array electrode terminals or land grid array electrode terminals.

As shown in FIG. 4, in the electronic component socket 1 of the present invention, the electrode portion 10 of the socket main body 10b is formed by punching an elastic plate material having a predetermined thickness (for example, 0.08 mm) and forming electronic components on both ends. Electrode terminal 2a of CPU2 as a component
(FIGS. 3 and 5E) and a pair of contacts 23 and 24, respectively, which contact the electrode terminals 17a of the printed circuit board 17 as the connected electronic component, and a pair of contacts 23 and 2 respectively.
And a meandering portion 25 which is interposed between the four and connects the pair of contacts 23 and 24 in a row.

In the electronic component socket of the present invention, the meandering portion 25 preferably includes a pair of contact meandering portions 25a and 25c located on both ends 26a and 26b connected to the pair of contacts 23 and 24, respectively. ,
An intermediate meandering portion 25b is located between the pair of contact meandering portions 25a and 25c and has a larger shape than the pair of contact meandering portions 25a and 25c.

In the electronic component socket of the present invention, the meandering portions 25a, 25b, 25c are substantially U-shaped (C-shaped) or V-shaped.

As the elastic plate, for example, the same plate as that suitable for a piano wire can be used.

The socket body 10b is provided with a slot 20 into which the electrode section 10 is fitted. After the electrode section 10 is fitted into the slot 20, an insulating cover 22 covering the slot 20 is covered on the socket body 10b. (FIGS. 5A and 5C)
(E)). The contacts 23 and 24 of the electrode section 10 protrude from the slot 20 through the cover opening 27 and the slot opening 28 due to the elasticity of the electrode section 10 itself. Thus, the socket connector of the electrode unit 10 is assembled. Then
As shown in FIGS. 5C and 5D, the printed circuit board 17 as the electronic component to be connected is mounted such that the electrode terminal 17a of the printed circuit board 17 as the electronic component to be connected comes into contact with the contact 24 of the electrode member 10. Is done. Finally, FIG. 5 (e),
As shown in (f), the CPU 2 as an electronic component is pressed against the socket body 10b by the pressing member 3 (FIGS. 1 to 3), and the CPU 2 as the electronic component is mounted. FIG.
FIGS. 5B and 5C show the elastic configuration of the electrode unit in the connector assembly state of the electrode unit in FIGS.
These are shown in (d) and (f), respectively.

As shown in FIG. 6, in the electronic component socket 1 of the present invention, the electrode portion 10 having the contact 23 is provided.
Are arranged in a dot matrix form in a row direction x and a column direction y and oriented diagonally (z direction). According to such a dot matrix-type diagonally oriented arrangement, the space factor is improved.

The cover opening 27 provided in the insulating cover 22 which is attached to the main body 10b and covers the slot 20 is formed by the slot 2
At the position where the contact 23 of the electrode portion 10 is fitted corresponding to 0, the dot matrix is arranged diagonally in the dot matrix form as described above.

In the thus configured electronic component socket 1 of the present invention, when the CPU 2 as an electronic component is pressed against the socket body 10b by the pressing member 3 (FIGS. 1 to 3), FIG. As shown in (f), the electrode terminal 2a (FIG. 3 (a)) of the CPU 2 as an electronic component comes into contact with the contact 23 of the electrode portion 10 of the socket body 10b, and the contact of the electrode portion 10 of the socket body 10b. 24 and the electrode terminals 17 of the printed circuit board 17 which is the connected electronic component
a is contacted.

In this case, the contacts 23 of the electrode section 10
A meandering portion 25 (25a, 25b, 25c) formed by punching an elastic plate material in a state where 24 is in contact with the electrode terminal 2a of the CPU 2 as an electronic component and the electrode terminal 17a of the printed circuit board 17 as an electronic component to be connected. ) Is bent by the elastic force, so that the contact between the electrode terminal 2a of the CPU 2 as an electronic component and the contact 23 of the socket main body 10b, the contact 24 of the socket main body 10b and the electrode terminal 17a of the printed board 17 as the connected electronic component. Is good. The contacts 23 and 24 of the electrode unit 10 are electrically connected to the electrode terminal 2a of the CPU 2 as an electronic component and the electrode terminal 17a of the printed circuit board 17 as an electronic component to be connected.
In contacting with the contact 23 of the electrode unit 10,
Since the straight portions of the contacts 23 and 24 of the electrode portion 10 fall if only the large meandering portion 25b having a large shape is provided in the meandering portion 24, the meandering portion 25 has both ends 26a and 26b of the large meandering portion 25b. By forming a pair of contact meandering portions 25a and 25c located on the respective sides, it is possible to prevent the straight portions of the contacts 23 and 24 from falling down and to stabilize the contact state mechanically. It is possible.

[0030]

As is apparent from the above description, according to the electronic component socket of the present invention, the attachment / detachment of the electronic component causes poor contact between the electrode terminal of the electronic component and the electrode portion of the socket body. The structure is relatively simple and the manufacture is easy. Further, according to the electronic component socket of the present invention, since the structure of the electrode portion is relatively simple as compared with the conventional contact, when applied to a CPU as an electronic component, the clock frequency of the CPU is increased, that is, It is possible to meet the demand for a short path (reduction in inductance and impedance) accompanying the speeding-up of personal computers.

[Brief description of the drawings]

FIG. 1 is a perspective view of an electronic component socket, a CPU, and a pressing member according to an embodiment of the present invention.

2A is an exploded perspective view of an electronic component socket, a crank lever, and a movable hook according to one embodiment of the present invention, and FIGS. 2B and 2C are respectively before and after operation of an operation lever. The perspective view of a crank lever and a movable hook.

FIGS. 3A to 3C are explanatory views of an operation of attaching a CPU and a pressing member to an electronic component socket, respectively.

FIG. 4 is a diagram showing a connector assembly of an electrode unit according to one embodiment of the present invention.

FIGS. 5A and 5B are diagrams showing a connector assembly of an electrode unit and an electrode unit in that state in one embodiment of the present invention, and FIGS. 5C and 5D are printed circuit boards, respectively. Diagram showing the mounting and the electrode part in that state,
(E), (f) is a figure which shows the operation state after contacting an electrode part by mounting CPU, and the electrode part in that state, respectively.

FIG. 6 is a diagram showing an arrangement of electrode portions on a socket body according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Socket for electronic components 2 ... Electronic component (CPU) 2a ... Electrode terminal of electronic component 10 ... Electrode part 10b ... Socket body 10c ... Elastic plate material 17: Connected electronic component (printed circuit board) 17a: Electrode terminal of connected electronic component 23, 24: Contact 25: Meandering portion 25a, 25c: Contact meandering portion 25b .... meandering part 26a, 26b ... both ends

Claims (3)

[Claims] An electronic component is pressed against a socket main body to maintain contact between an electrode terminal of the electronic component and an electrode portion of the socket main body, and to connect the electrode portion of the socket main body to an electronic component to be connected. In the electronic component socket connected to the electrode terminal, the electrode portion of the socket body is formed by punching an elastic plate material having a predetermined thickness and forming an electrode terminal of the electronic component and an electrode terminal of the connected electronic component on both ends. A pair of contacts that respectively contact the pair of contacts, and a meandering portion that is interposed between the pair of contacts and connects the pair of contacts in a row in a row. 2. The meandering section includes a pair of contact meandering sections located at both ends connected to the pair of contacts, respectively, and the pair of contact meandering sections located between the pair of contact meandering sections. 2. The electronic component socket according to claim 1, further comprising an intermediate meander having a larger shape. 3. The meandering portion is substantially U-shaped or V-shaped.
2. The electronic component socket according to claim 1, wherein the socket has a character shape.