JP3665952B2 - ZIF socket connector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ZIF socket connector, and more particularly to a ZIF socket connector for measuring a contact resistance value of a counterpart contact member, that is, an electronic component to be measured.
[0002]
[Prior art]
Japanese Utility Model Publication No. 63-168974 is a conventional example of this type of ZIF socket connector.
[0003]
[Problems to be solved by the invention]
However, in the conventional example, when measuring the resistance value of the counterpart contact member, that is, the electronic component to be measured, the contact resistance is not taken into consideration, and there is a drawback that a precise resistance value cannot be measured.
[0004]
Therefore, a technical problem of the present invention is to provide a ZIF socket connector capable of measuring an accurate value even when measuring a delicate resistance such as a contact resistance.
[0005]
[Means for Solving the Problems]
The present invention employs the following means in order to solve the problems.
[0006]
(1) A plurality of contacts, a base insulator that stores the contacts in a predetermined direction, and a slider that is mounted on the base insulator and slides in a direction perpendicular to the predetermined direction,
The slider is slid, and the side surface of at least one contact is pushed and moved so that the contact pinches one of a plurality of lead terminals of the electronic component to be measured, thereby the electronic component to be measured A ZIF socket connector for connecting one of the lead terminals to the contact,
The plurality of contacts include a contact pair of one and the other contact pieces, and the one and the other contact pieces are arranged so as to be separated from each other and face each other.
The one contact piece and the other contact piece are in contact with one of the lead terminals of the electronic component, a holding part that is held by the base insulator, and extend from the holding part, and come out from the inside of the base insulator. Lead terminal part,
The one contact piece is formed by shifting the contact portion and the terminal portion in a direction perpendicular to the arrangement direction of the one contact piece,
The ZIF socket connector, wherein the other contact piece is formed by shifting the contact portion and the terminal portion in the arrangement direction of the other contact piece .
[0007]
(2) In the ZIF socket connector according to (1),
An electronic component using a ZIF socket connector, wherein a resistance value of the electronic component is measured by connecting so that the contact pair corresponds to one lead terminal of the electronic component to be measured Of measuring the resistance value.
[0008]
(3) A contact pair used for a ZIF socket connector for holding and receiving a mating contact member,
One contact piece of the contact pair is formed on a predetermined plane,
One lead terminal portion extending in a predetermined direction; one curved portion extending at a pitch perpendicular to the one lead terminal portion on the predetermined plane; and from the curved portion, While extending along the predetermined direction on a predetermined plane and having one contact portion that contacts when receiving the mating contact member,
The other contact piece is formed on a substantially parallel curved surface spaced from the predetermined plane, and the curved surface includes an orthogonal surface orthogonal to the predetermined plane;
The other lead terminal extending along the predetermined direction; a step extending from the other lead terminal by the other pitch so as to form the orthogonal plane; and the predetermined from the step A contact pair for use in a ZIF socket connector, characterized by having a contact portion extending along a direction and contacting the other contact member when receiving the mating contact member.
[0009]
(4) A ZIF socket connector using the contact pair according to (3),
The ZIF socket connector, wherein the base insulator has holes for receiving one and the other contacts of the contact pair, respectively, so as to be adjacent to each other.
[0010]
[Action]
The contact pairs used in the ZIF socket connector of the present invention act as one and the other contact pieces that are independent and spaced apart from each other.
[0011]
One contact piece is curved and extends by a predetermined pitch in a direction orthogonal to a predetermined direction on a predetermined plane (one plane), thereby forming a curved portion. The bending portion acts as a holding portion that is held in one of the adjacent holes of the base insulator.
[0012]
The other contact piece is formed on a substantially parallel curved surface spaced from a predetermined plane. The curved surface includes an orthogonal surface orthogonal to a predetermined plane, and forms a stepped portion extending so as to have the other pitch on the orthogonal surface. This step portion acts as a holding portion that is held by the other of the adjacent holes of the base insulator.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Prior to describing a ZIF socket connector according to an embodiment of the present invention, a related invention will be described.
[0014]
(Related invention)
11 to 16, a ZIF socket connector 11 according to the related invention includes a Y-shaped movable contact 13, a base insulator 15 having a hole 16, a cover insulator 17 having a hole 18, and a hole. A slider 19 having a portion 20, a lever 21 having a convex portion or a crank portion 22 for sliding the slider 19, an L-shaped metal fitting 23, and a mounting screw 25 are provided.
[0015]
Assume that the electronic component to be measured is a resistor. In order to measure the value of this resistor, the ZIF socket connector 11 is assembled, and then the electronic device to be measured is inserted into the hole 18 of the cover insulator 17 and attached.
[0016]
Referring to FIG. 16, lever 21 is rotated and driven 90 degrees. At this time, the crank portion 22 of the lever 21 pushes and slides the slider 19 in the lateral direction, and one contact piece of the Y-shaped contact 13 is pressed by the other contact piece. Therefore, as a result of the operation of closing both contact pieces of the Y-shaped contact 13, the terminals of the electronic component to be measured are sandwiched by the contacts 13 from both sides.
[0017]
By the way, in the related invention, as shown in FIG. 17, the resistance value is measured after connecting a measuring instrument to one and the other contact pieces of the contact 13, that is, both ends (two terminals).
[0018]
FIG. 18 shows the principle of a four-terminal measurement method in which a current line and a sensing line are separated, and a precise contact resistance, that is, a precision resistance value can be obtained from the two-terminal measurement method of FIG.
[0019]
However, in the related invention, as shown in FIGS. 19 and 20, the contact pieces of the contact 13 are connected to each other, so that the conductor resistance between the two terminals is added to the actually measured resistance value. As a result, when measuring a delicate resistance such as a contact resistance, an accurate resistance value cannot be measured.
[0020]
(Embodiment of the Invention)
Now, a ZIF socket connector according to an embodiment of the present invention will be described with reference to the drawings.
[0021]
1 to 9, a ZIF socket connector 31 according to an embodiment of the present invention includes a movable contact 33, a base insulator 35 having a hole portion 36 for receiving the contact 33, and a cover having a hole portion 38. An insulator 37, a slider 39 having a hole 40, a lever 41 having a convex portion for sliding the slider 39, that is, a crank portion 42, an L-shaped metal fitting 43, and a mounting screw 45 are provided.
[0022]
As shown in FIG. 2B, the feature of the present invention is that the central portion of the Y-shaped movable contact 13 of the related invention of FIG. It was made independent.
[0023]
One contact piece 33-1 is formed on a predetermined plane (one plane) and extends in a predetermined direction, and is bent by one pitch P1 from the lead terminal 33-1a. And a curved portion 33-1b extending and a contact portion 33-1c. The bending portion 33-1b extends by bending one pitch P1 in a direction orthogonal to a predetermined direction on a predetermined plane.
[0024]
The other contact piece is formed on a substantially parallel curved surface spaced from a predetermined plane (one plane). The curved surface includes an orthogonal surface orthogonal to a predetermined plane. The other contact piece includes a lead terminal 33-2a, a stepped portion 33-2b extending from the lead terminal 33-2a by the other pitch P2 on the orthogonal plane, and a contact portion 33-2c. The separation distance is a predetermined distance between both lead terminal portions 33-1a and 33-2a, and the other pitch is set to a predetermined distance between both contact portions 33-1c and 33-2c. P2 is added. One and the other pitches P1 and P2 have substantially the same dimensions.
[0025]
More specifically, the pair of left and right contacts 33 used in the ZIF socket connector 31 according to the embodiment of the present invention is the electronic component to be measured (mating contact member) (see FIGS. 10A and 10C). The lead terminal of the measuring resistor R1 is sandwiched and received.
[0026]
One contact piece 33-1 shown on the left side of FIG. 2B is formed on a predetermined plane. One contact piece 33-1 includes one lead terminal portion 33-1a extending in a predetermined direction; only one pitch P1 orthogonal to one lead terminal portion 33-1a on a predetermined plane. One bending portion 33-1b extending in a bending manner; extending from the bending portion 33-1b in a T shape along a predetermined direction on a predetermined plane, and contacting when receiving the mating contact member It has one contact part 33-1c (T-shaped part).
[0027]
The other contact piece 33-2 shown on the right side of FIG. 2B is the other lead terminal portion 33-2a extending in a predetermined direction along a predetermined plane; A stepped portion 33-2b extending from the other lead terminal portion 33-2a and extending by the other pitch P2 on a plane orthogonal to the other plane; a step in a predetermined direction along a predetermined plane It has a T shape extending from the portion 33-2b and has another contact portion 33-2c (T shape portion) that comes into contact when the counterpart contact member is received.
[0028]
The curved portion 33-1b of the one contact piece 33-1 and the stepped portion 33-2b of the other contact piece 33-2 each act as a holding portion held in the hole portion 36 of the base insulator 35.
[0029]
3 (A) and 3 (B), in the base insulator 35 shown in FIG. 3 (B), the holes 36 for receiving the one and other contact pieces 33-1 and 33-2 are mutually connected. Adjacent holes are arranged in a staggered pattern.
[0030]
The operation of the ZIF socket connector 31 will be described after the ZIF socket connector 31 is assembled with reference to FIGS. First, the lever 41 standing vertically is tilted sideways and rotated and driven 90 degrees. At this time, the crank portion 42 of the lever 41 pushes the slider 39 in the lateral direction, and the slider 39 slides.
[0031]
At the same time, one contact piece 33-1 is pressed by the other contact piece 33-2. Therefore, as a result of operating so that both the contacts 33 close, the terminal of the object to be measured is clamped by the contacts 33 from both sides.
[0032]
By the way, when the electronic device to be measured has two lead terminals such as a resistor, referring to FIGS. 10A, 10B, and 20, the one and other contact pieces 33-1 and 33-2 includes a resistance value of the resistor R1 to be measured by connecting four terminals, c and d of one lead terminal and a and b of the other lead terminal, to a measuring instrument (digital voltmeter). Can be measured.
[0033]
Referring to FIG. 10C and FIG. 18, one lead terminal of the measured resistor R1 is connected to the contact piece 33-1 or 33-2. Therefore, any one of + I, -S, -I, and + S is connected to one and the other lead terminals, and measurement is performed with a four-terminal connection, whereby a very accurate resistance value can be measured.
[0034]
More specifically, when measuring the resistance using the ZIF socket connector of the present invention, as shown in FIG. 10C, two independent contacts 33 are in contact with one lead terminal of the resistor R1 to be measured. Therefore, the cables for the current (I) and the sensing line (S) are provided independently. The contact 33 is in contact with both lead terminals of the resistor R1, that is, the resistance value can be accurately measured from the α point to the β point.
[0035]
【The invention's effect】
According to the ZIF socket connector of the present invention, by cutting the center portion of the Y-shaped contact, forming a contact pair, that is, one and the other contact piece, and arranging each in adjacent holes of the insulator, Even when a delicate resistance such as a contact resistance is measured, there is an effect that a ZIF socket connector capable of measuring an accurate value can be provided.
[0036]
In addition, no force is required to attach / detach the electronic component to be measured. For this reason, it is possible to expect the effects that the insertion / extraction is easy, the contact stability is increased, and the risk of deforming the lead terminal of the electronic component to be measured is reduced.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a ZIF socket connector 31 according to an embodiment of the present invention.
2A is a perspective view of a Y-shaped contact 13 used in the ZIF socket connector 11 of the related invention of FIG.
(B) It is a perspective view of a pair of left and right contacts 33 used in the ZIF socket connector 31 according to the embodiment of the present invention of FIG. 1, that is, one contact piece 33-1 and the other contact piece 33-2.
3A is a top view of a base insulator 15 used in the ZIF socket connector 11 of the related invention of FIG.
(B) It is a top view of the base insulator 35 used for the ZIF socket connector 31 by embodiment of this invention of FIG.
4 is a top view of a cover insulator 37 used in the ZIF socket connector 31 according to the embodiment of the present invention shown in FIG.
FIG. 5 is a conceptual side view of one and the other contact pieces 33-1 and 33-2 for explaining that contacts are incorporated in a staggered manner in the insertion direction indicated by a dotted line.
6A is a top view of the slider 39 of the ZIF socket connector 31 according to the embodiment of the present invention. FIG.
(B) It is a side view of the L-shaped metal fitting 43.
FIG. 4C is a side view of the lever 41.
7A is a cc cross-sectional view of a ZIF socket connector 31 according to an embodiment of the present invention. FIG.
(B) It is dd sectional drawing of the ZIF socket connector 31 by embodiment of this invention.
FIG. 8A is a normal cross-sectional view of the ZIF socket connector 31 according to the embodiment of the present invention.
(B) It is aa sectional drawing when the lever 41 of (A) is tilted.
FIG. 9A is a bb cross-sectional view of the ZIF socket connector 31 in a normal state according to the embodiment of the present invention.
(B) It is bb sectional drawing when the lever 41 of (A) is tilted.
FIG. 10A shows a case where a resistance to be measured R1 is inserted between adjacent holes A and B formed in the cover insulator of the ZIF socket connector 31 according to the embodiment of the present invention and the resistance value is measured. FIG.
(B) It is a figure for demonstrating the 4-terminal measuring method using the ZIF socket connector 31 of FIG.
(C) It is a figure for demonstrating the principle of the 4-terminal measuring method of this invention.
FIG. 11 is an exploded perspective view of the ZIF socket connector 11 of the related invention.
12 is a top view of a cover insulator 17 constituting the ZIF socket connector 11 of FIG.
13 is a top view of a slider 19 constituting the ZIF socket connector 11 of FIG.
14 is a top view of a base insulator 15 constituting the ZIF socket connector 11 of FIG.
15 is a cross-sectional view of the ZIF socket connector 11 of FIG. 11 and shows a normal time when the lever 21 is disposed on the upper side.
16 is a cross-sectional view of the ZIF socket connector 11 of FIG. 11, showing the lever 21 tilted sideways.
FIG. 17 is a diagram for explaining the principle of the two-terminal measurement method.
FIG. 18 is a diagram for explaining the principle of a four-terminal measurement method.
FIG. 19 is a diagram for explaining a two-terminal measurement method according to a related invention.
FIG. 20 is a diagram for explaining a four-terminal measurement method according to a related invention.
[Explanation of symbols]
11 ZIF socket connector 13 of related invention 15 Y-shaped movable contact 15 Base insulator 17 Cover insulator 19 Slider 21 Lever 23 L-shaped bracket 25 Mounting screw 31 ZIF socket connector 33 according to the embodiment of the present invention Movable in Y-shape Contact 33-1 One contact piece 33-1a One lead terminal portion 33-1b One curved portion (holding portion) having a pitch P1
33-1c One contact part (T-shaped part)
33-2 The other contact piece 33-2a The other lead terminal portion 33-2b The step portion (holding portion) having the other pitch P2
33-2c The other contact part (T-shaped part)
36 hole portion 35 base insulator 37 cover insulator 38 hole portion 39 slider 40 hole portion 41 lever 42 convex portion (crank portion)
43 L-shaped bracket 45 Mounting screw

Claims (4)

A plurality of contacts, a base insulator that stores these contacts in a predetermined direction, and a slider that is mounted on the base insulator and slides in a direction perpendicular to the predetermined direction,
The slider is slid and the side surface of at least one contact is pushed and moved so that the contact pinches one of a plurality of lead terminals of the electronic component to be measured. A ZIF socket connector for connecting one of the lead terminals to the contact,
The plurality of contacts are composed of contact pairs of one and the other contact pieces, and the one and the other contact pieces are arranged so as to be separated from each other and face each other.
The one and the other contact pieces extend from the contact portion that contacts one of the lead terminals of the electronic component, the holding portion held by the base insulator, and exits from the inside of the base insulator Lead terminal part,
The one contact piece is formed by shifting the contact portion and the terminal portion in a direction perpendicular to the arrangement direction of the one contact piece,
The ZIF socket connector, wherein the other contact piece is formed by shifting the contact portion and the terminal portion in the arrangement direction of the other contact piece . The ZIF socket connector according to claim 1,
An electronic component using a ZIF socket connector, wherein a resistance value of the electronic component is measured by connecting so that the contact pair corresponds to one lead terminal of the electronic component to be measured Of measuring the resistance value. A pair of contacts used for a ZIF socket connector for holding and receiving a mating contact member,
One contact piece of the contact pair is formed on a predetermined plane,
One lead terminal portion extending in a predetermined direction; one curved portion extending at a pitch perpendicular to the one lead terminal portion on the predetermined plane; and from the curved portion, While extending along the predetermined direction on a predetermined plane and having one contact portion that contacts when receiving the mating contact member,
The other contact piece is formed on a substantially parallel curved surface spaced from the predetermined plane, and the curved surface includes an orthogonal surface orthogonal to the predetermined plane;
The other lead terminal extending along the predetermined direction; a step extending from the other lead terminal by the other pitch so as to form the orthogonal plane; and the predetermined from the step A contact pair for use in a ZIF socket connector, characterized by having a contact portion extending along a direction and contacting the other contact member when receiving the mating contact member. A ZIF socket connector using the contact pair according to claim 3,
The ZIF socket connector, wherein the base insulator has holes for receiving one and the other contacts of the contact pair, respectively, so as to be adjacent to each other.

Images