WO2000070716A1 - Connecteur multiple - Google Patents

Connecteur multiple Download PDF

Info

Publication number
WO2000070716A1
WO2000070716A1 PCT/JP2000/003094 JP0003094W WO0070716A1 WO 2000070716 A1 WO2000070716 A1 WO 2000070716A1 JP 0003094 W JP0003094 W JP 0003094W WO 0070716 A1 WO0070716 A1 WO 0070716A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
contacts
connector
housing
mating connector
Prior art date
Application number
PCT/JP2000/003094
Other languages
English (en)
Japanese (ja)
Inventor
Masahiko Yamabe
Toshihiro Ichihashi
Original Assignee
Advantest Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Advantest Corporation filed Critical Advantest Corporation
Publication of WO2000070716A1 publication Critical patent/WO2000070716A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/82—Coupling devices connected with low or zero insertion force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits

Definitions

  • the present invention is applied to a performance board, a mother board, an interface board, and the like of an IC test apparatus, and particularly relates to a socket-type LIF (Low Intertion Force) multi-pole connector with reduced insertion / extraction force.
  • LIF Low Intertion Force
  • FIG. 1 schematically shows a conventional socket-type multi-pole connector.
  • the front surface of the housing 11 is formed with an insertion hole 12 into which the mating connector is inserted, and a plurality of spring material contacts 14 and 15 protruding from the bottom surface of the insertion hole 12 are arranged in two rows facing each other.
  • the housing 11 is integrally molded with the base 13 of the housing 11.
  • the contacts 14, 15 gradually approach each other as they move away from the base 13 to the front side of the housing 11, and then are folded back near the free end.
  • the closest parts are the arc-shaped contact parts 16 and 17.
  • Each of the contacts 14, 15 protrudes outside from the bottom surface of the housing 11 to form second contact portions 18, 19, and the intermediate portions in the protruding direction are curved so as to approach each other, and the contact portions are formed. 2 1, 22
  • the plug-type multi-pole connector inserted into and removed from this socket-type multi-pole connector is configured as shown in Fig. 2.
  • a support 26 is integrally formed in the middle of one surface of the base 25 so as to protrude along the longitudinal direction, and contacts 27 and 28 are molded and held on the base 25 along both side surfaces of the support 26.
  • the arrangement intervals of the contacts 27 and 28 are the same as the arrangement intervals of the contacts 14 and 15 of the socket-type multi-pole connector.
  • each of the three contacts 14a, 14b, 14c and 15a, 15b, 15c, or the contacts 27a, 27b, 27c and 28a, 28b, 28 c indicates that the middle contacts 14b, 15b, 27b, 28b are used for signal lines, and the connectors 14a, 14c, 15a, 15c, 27a, 27c, 28a, 28c are each used for the ground wire.
  • contact 15a, 15b, 15c, 28a, 28b, 28c are not shown.
  • IC test equipment When inserting the plug-type connector into the socket-type connector, press and widen the distance d between the contact parts 16 and 17 of the contacts 14 and 15 to make the contact parts 16 and 17 and the contacts 27 and 28 With the contact pressure.
  • IC test equipment may have as many as 300000 pins. If the required insertion force per pin is 300 g, a total force of about 1 t is required. Becomes In order to reduce the total insertion force, the insertion force per pin can be reduced by increasing the distance d between the contact parts 16 and 17 or by reducing the spring constant of the contacts 14 and 15. And However, if the contact distance d is increased or the spring constant is reduced, sufficient contact pressure cannot be obtained, and the reliability of electrical contact decreases.
  • the contact portion of the contact is shifted in the connector insertion / removal direction.
  • the contacts whose contact portions are shifted are substantially uniformly distributed on the contact array.
  • each contact is formed in the housing.
  • the stopper prevents entry into the insertion opening of the mating connector.
  • a biasing force is applied to the contact portion of the contact in the direction of the insertion opening.
  • FIG. 1A is a sectional view taken along the line 1A-1A in FIG. 1B showing a conventional socket-type multi-pole connector
  • FIG. 1B is a sectional view taken along the line 1B-1B in FIG. 1A.
  • FIG. 2A is a front view showing a conventional plug-type multi-pole connector
  • FIG. 2B is a side view of FIG. 2A.
  • FIG. 3 is a perspective view schematically showing a base portion and a contact in the embodiment of FIG.
  • FIG. 4 is a sectional view taken along line 414 of FIG.
  • FIG. 5 is a perspective view showing the support frame 38 in the embodiment of FIG.
  • FIG. 6A is a front view showing the base portion 36 and the contacts 14 and 18 in the embodiment of FIG. 8
  • FIG. 6B is a sectional view taken along the line 6B—6B of FIG. 6A
  • FIG. Fig. 6 is a sectional view taken along line 6C-6C of A.
  • FIG. 7 is a perspective view showing the cover 46 in the embodiment of FIG.
  • FIG. 8 is a plan view showing an embodiment of the present invention.
  • FIG. 9 is a perspective view showing a part of the inside of the cover 46 as viewed from one side of the insertion opening 54 from the base.
  • FIG. 10 is a front view showing an example of a mating plug type multipolar connector of the embodiment of FIG.
  • FIG. 11 is a sectional view taken along line 11--11 of FIG.
  • FIG. 12 is a sectional view schematically showing a state in which a plug-type multi-pole connector is partially inserted into the embodiment of FIG.
  • FIG. 13 is a diagram showing the relationship between the insertion distance and the insertion force of the plug-type connector for this embodiment and that of the prior art.
  • the two prismatic base portions 36, 37 are offset to one side opposite to each other, and a plurality of spring material contacts 14, 15 are inserted into the insert mold. They are arranged and held in the longitudinal direction on the base portions 36 and 37 of the synthetic resin material. These base portions 36 and 37 are inserted and supported in the support frame 38 as shown in FIG.
  • the supporting frame 38 is an elongated rectangular frame, and a longitudinal beam 39 extending in the longitudinal direction at the center of the bottom surface thereof, and horizontal beams 41, 42 are provided at regular intervals on both sides thereof in the frame 38. It is formed integrally with the frame 38 as a molded product of a synthetic resin material.
  • the cross beams 41, 42 are offset from one another by half the spacing pitch.
  • the contacts 14 and 15 protrude from the bottoms of the base portions 36 and 37, respectively, and are referred to as second contacts 18 and 19, respectively, and these second contacts 18 and 19 are referred to as “background”. As shown in the section “Techniques”, three contacts are formed into pairs, and each of the three contacts 18 and 19 is formed by vertical beams 39 and horizontal beams 41 and 42. It protrudes below the frame 38 through the rectangular openings 43 and 44.
  • the contacts 14 and 18 held on one base portion 36 have three sets of contact portions 16 a, 16 b, 16 c, 21 c, 21 b, and 21 b, respectively.
  • the center 16b, 21b in 21c is different from the base 16a, 16c, 21a, 21c in the distance from the base 36. That is, the distance L1 of the contact portions 16a and 16c from the base portion 36 is larger than the distance L2 of the contact portion 16b from the base portion 36, and the contact portions 21a and 21c
  • the distance L 3 from the base 36 to the contact portion 21 b is smaller than the distance L 4 from the base 36 to the contact portion 21b.
  • Contact 14a, 14c faces contact 15c, 15a, respectively, and contacts 18a, 18a, as shown by the broken lines between the opposing contacts in FIG. contact with c 19c and 19a, respectively, with contact 14b facing between contacts 15a and 15c, and contact 15b facing between contacts 14a and 14c.
  • contact 18b is opposite between contacts 19a and 19c
  • contact 19b is opposite between contacts 18a and 18c.
  • the shapes of the contacts 14, 15, 18 and 19 are almost the same as those shown in the prior art, and as shown in FIG.
  • the rectangular parallelepiped cover 46 made of a synthetic resin molded product shown in FIG. 7 is connected to the connector 14 as shown in FIG.
  • Engaging pieces 47, 48 which are covered from the sides of the frame 38 and extend to the lower sides on both sides of the cover 46, are formed in shallow engaging recesses 49, 51 (see FIG. 5) formed on both outer surfaces of the frame 38. And are engaged with each other.
  • the cover 46 and the frame 38 are fixed to each other by, for example, screws.
  • Each of the holes 101 and 102 in FIGS. 5 and 7 is a screw hole.
  • the front (top) plate 53 of the cover 46 is formed with insertion openings 54 into which the insertion portions of the mating plug type connectors are inserted.
  • Small holes for engagement 55, 56 are arranged in the face plate 53 along the longitudinal direction of the upper plate 53.
  • Each of the engagement small holes 55 and 56 is also a set of three engagement small holes 55a, 55b, 55c and engagement small holes 56a, 56b, 56c, respectively.
  • the three sets of engagement holes 55a, 55b, and 55c have free ends 57 &, 57b, and 57c of the contacts 14a, 14b, and 14 (, respectively.
  • the contacts 14a, 14b, and 14c are biased in the direction of the insertion opening 54, respectively.
  • the contact 14b has a low height from the base portion 36, as shown in FIG. Is formed with a rectangular cylindrical portion 58 communicating with the inner surface thereof, and the free end portion 57b of the contact 14b is engaged with the rectangular cylindrical portion 58. That is, the small hole for engagement of The inner peripheral wall acts as a stopper to prevent the free end of each contact from entering the insertion opening 54.
  • the free ends of the contacts 15a, 15b, and 15c are inserted into the engagement small holes 56a, 56b, and 56c, and the insertion opening 54 side.
  • the inner peripheral surface is elastically pressed against the inner peripheral surface, and a biasing force in the direction of the insertion opening 54 is applied.
  • the contact portions 16 and 17 of the contacts 14 and 15 slightly protrude into the insertion opening 54 when viewed from the insertion opening 54 side, and when the mating connector is inserted, the contact portion of the mating connector is disconnected. The contact is made with a sufficient contact pressure.
  • Engagement small hole 55
  • the cover 46 is attached to the base part 36 with the space between the contacts 14 and 15 widened by a jig whose cross section is almost the same as the shape of the opening 54. , 37 from the contacts 14, 15 side, and the jig should be pulled out after each contact is inserted into the corresponding small hole.
  • metal plate reinforcing plates 61 and 62 are attached to both side surfaces of the cover 46 to increase the strength.
  • a plug-type multi-pole connector to be connected to this socket-type multi-pole connector is configured as shown in FIGS. 10 and 11, for example.
  • the base 25 and the supporting portion 26 extending in the longitudinal direction and protruding at the center of one surface thereof are integrally formed by a synthetic resin molded product, and the contact receiving grooves 63 and 64 are formed on both side surfaces of the supporting portion 26. Are formed, and these grooves 63,
  • the slit 64 penetrates the base 25, that is, a slit-like small hole communicating with the grooves 63 and 64 is formed through the base 25.
  • the contacts 27 and 28 are accommodated in the contact accommodating grooves 63 and 64, respectively, and are fixed by being engaged with the base 25.
  • the contact portions 65 and 66 projecting below the base 25 of the contacts 27 and 28 are pressed against the terminals formed on the printed wiring board when the base 25 is arranged and fixed on the printed wiring board, and the electrical contact is generated. Connected to.
  • the contacts 27b and 28b make contact with the contacts 14b and 15b, and the gap between these contacts 14b and 15b is expanded, and the plug-
  • the contact portions 16b and 17b of the contacts 14b and 15b contact the contact portions of the contacts 27b and 28b, respectively.
  • the height L 1 of the contact portions 16 a, 16 c, 17 a, 17 c with respect to the base portion and the base portions 36, 37 of the contact portions 16 b, 17 b are adjusted so as to perform such an operation.
  • Height L 2 is selected. Looking at only this, in this embodiment, first spread 2/3 of all contacts, then spread the remaining 1/3, so that it spreads rather than spread all contacts simultaneously. The insertion force is distributed twice, with only 2/3 at first and 1/3 afterwards.
  • each contact 14, 15 has its free end engaged with the engaging small hole 55, 56 of the housing (cover 46), and a biasing force is applied to the opening 54 side.
  • the contact pressure between the contact portions 16 and 17 and the contacts 27 and 28 can be sufficiently high. Therefore, the angle ⁇ (see FIG. 4) of the slopes of the contact portions 16 and 17 on the opening 54 side with respect to the surface perpendicular to the base portions 36 and 37 can be made smaller than that of the conventional one, and the insertion force becomes smaller accordingly.
  • connector input for example, as shown by the solid line in Fig.
  • a peak 71 occurs when the contact portions 16a, 16c, 17a, and 17c are expanded, and the insertion force becomes extremely small in the state shown in Fig. 12.
  • a peak 72 smaller than the peak 71 occurs, and thereafter, a small insertion force is obtained.
  • an extremely large peak 73 insertion force is first required to spread the contact portion of all the connections.
  • the contact portions 21b and 22b of the multi-terminals 32 and 33 of the printed wiring board 31 with respect to the contacts 18 and 19 are also spread out.
  • the contact parts 21a, 21c, 22a, and 22c are expanded after they are maximally expanded, the insertion force is smaller than when these are simultaneously expanded.
  • the height of the contact part with respect to the base parts 36 and 37 was set as a set of three contacts, and in each set, the height at the center was lower and that at both sides was higher, but the height at the center was higher. However, both sides may be lowered. Also, the height of the contact portion with respect to the base portions 36, 37 may be different for every other contact 14, 15, 15, 18, 19. Further, the height of the contact portion with respect to the base portions 36 and 37 is not limited to two, but may be any of three or more heights. In addition, in the arrangement direction of the contacts 14, 15, 15, 18 and 19, the height of the contact portion with respect to the base portion is alternately or sequentially changed in three stages for each of a plurality of continuous lines 2 to 10 lines. The shifting may be repeated.
  • each contact arrangement may be divided into four sets in the arrangement direction, and the height of the contact portions may be changed alternately in the contact arrangement direction.
  • the contact portions of each height are distributed almost uniformly in the contact arrangement direction so that the insertion force at the time of connector insertion is substantially uniform in the contact arrangement direction. Is preferred.
  • the insertion force can be achieved by making the contact part of the contact contact stepwise without simultaneously contacting the mating connector when inserting the mating connector. It is only necessary to be able to reduce.
  • the height of the contact portions is not changed, that is, all the contact portions are set at the same height from the base portion, and the insertion force is reduced by applying a biasing force toward the opening side to each contact. You may do so. Conversely, those having a different height from the base of the contact portion may be arranged without giving a biasing force to the contact.
  • the housing is constituted by the two base portions, the frame body and the cover. However, if necessary, a part or all of them may be constituted integrally.
  • the contact portions of the contacts 18 and 19 may be of a surface mount type like the plug type connector shown in FIG. As described above, according to the present invention, the connector insertion force is dispersed and reduced. In addition, sufficient contact pressure can be obtained, reliable electrical connection can be made, and the length in the insertion / removal direction can be reduced.
  • the height with respect to the base may be changed when the contact is mounted on the housing (the base in the embodiment), and the number of parts may be reduced.
  • the contact parts are shifted in the insertion / removal direction for both the contact inside the housing and the contact outside the housing, both the internal and external contacts must be attached to the housing at the same time. A product with a displaced contact portion is obtained.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

Ce connecteur multiple comprend des ensembles de contacts (14a, 14b, 14c) agencés de manière répétée au niveau d'angles droits avec la surface papier, et maintenus dans une portion de base (26), ainsi que des ensembles de contacts (15a, 15b, 15c) agencés de manière répétée au niveau d'angles droits avec la surface papier et maintenus dans une portion de base (37), les hauteurs des portions de contact (16a, 16b) de chaque ensemble de contacts (14a, 14c) et celles des portions de contact (17a, 17c) de chaque ensemble de contacts (15a, 15c), par rapport aux portions de base, étant supérieures à celles des portions de contact (16b, 17b) des contacts (14b, 15b) par rapport à la portion de base; les extrémités libres des contacts sont respectivement insérées dans des petits trous (55, 56) ménagés dans la plaque de surface supérieure (53) d'un couvercle (46) et sont accrochées du côté ouverture (54) de façon qu'une force exercée par poussée vers l'ouverture (54) soit communiquée à chaque contact.
PCT/JP2000/003094 1999-05-13 2000-05-15 Connecteur multiple WO2000070716A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13215999 1999-05-13
JP11/132159 1999-05-13

Publications (1)

Publication Number Publication Date
WO2000070716A1 true WO2000070716A1 (fr) 2000-11-23

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ID=15074753

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/003094 WO2000070716A1 (fr) 1999-05-13 2000-05-15 Connecteur multiple

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WO (1) WO2000070716A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004047478A (ja) * 1999-11-26 2004-02-12 Advantest Corp コネクタ
JP2007035564A (ja) * 2005-07-29 2007-02-08 Nippon Deikkusu:Kk ハンダレス接続用のコネクタとこのコネクタに接続されるプラグ
JP2009266427A (ja) * 2008-04-22 2009-11-12 Mitsubishi Electric Corp 基板接続構造
WO2023185271A1 (fr) * 2022-03-31 2023-10-05 中航光电科技股份有限公司 Structure de douille décalée en feuille élastique multicouche et connecteur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63109469U (fr) * 1987-01-08 1988-07-14
JPH01128379A (ja) * 1987-11-11 1989-05-22 Fujitsu Ltd カード用コネクタ
JPH03131078U (fr) * 1990-04-16 1991-12-27
JPH06104057A (ja) * 1991-10-07 1994-04-15 Molex Inc 電気カードエッジコネクターアセンブリー

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63109469U (fr) * 1987-01-08 1988-07-14
JPH01128379A (ja) * 1987-11-11 1989-05-22 Fujitsu Ltd カード用コネクタ
JPH03131078U (fr) * 1990-04-16 1991-12-27
JPH06104057A (ja) * 1991-10-07 1994-04-15 Molex Inc 電気カードエッジコネクターアセンブリー

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004047478A (ja) * 1999-11-26 2004-02-12 Advantest Corp コネクタ
JP2007035564A (ja) * 2005-07-29 2007-02-08 Nippon Deikkusu:Kk ハンダレス接続用のコネクタとこのコネクタに接続されるプラグ
JP2009266427A (ja) * 2008-04-22 2009-11-12 Mitsubishi Electric Corp 基板接続構造
WO2023185271A1 (fr) * 2022-03-31 2023-10-05 中航光电科技股份有限公司 Structure de douille décalée en feuille élastique multicouche et connecteur

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