JP2011134660A - Zif connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ZIF connector in which a receptacle is easily inserted into and pulled out of a plug. <P>SOLUTION: A receptacle 10 includes: a first housing 1 having a first opening 1k; a first shutter 11 for closing the first opening 1k; a pair of cam blocks 1a, 1b rotating inside the first housing 1; dual-in-line first contacts 3, 3 supported by the pair of cam blocks 1a, 1b; and a tab contact 5 which pushes contact points 3c of each of the first contacts 3, 3 away from each other. A plug 20 includes: a second housing 2 having a header portion 2h and a second opening 2k; a second shutter 21 for closing the second opening 2k; and second contacts 4 arranged parallel to each other with the header portion 2h therebetween. The pair of cam blocks 1a, 1b each have a cam piece 1c that pushes the pair of first contacts 3, 3 toward each other such that the contact point 3c comes in contact with the second contact 4. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a ZIF connector. In particular, the present invention relates to a structure of a ZIF (Zero Insertion Force) connector that makes the force when inserting and removing the connector almost zero.

  For example, in order to easily insert and remove a printed circuit board having an edge connector into a dual in-line connector in which contacts are arranged in two rows, the dual in-line connector has contacts of a pair of opposing contacts. A contact opening / closing mechanism for opening and closing is provided.

  In addition, a contact opening / closing mechanism may be provided in the receptacle in order to easily insert / remove the plug (connector) into / from the dual inline type multipolar receptacle (connector).

  There are two types of such contact opening / closing mechanisms: a normally open type in which the contacts of a pair of opposed contacts are normally open, and a normal closed type in which the contacts of a pair of opposed contacts are normally closed.

  A normally open contact opening / closing mechanism that rotates a pair of eccentric cams arranged on the outside of a pair of opposing contacts to close the contacts of these contacts with each other, and the center (inside) of the pair of opposing contacts A normally-closed contact opening / closing mechanism is disclosed in which the disk cams arranged on are rotated to open the contacts of these contacts (see, for example, Patent Document 1).

JP 2002-343510 A

  The connector having the contact opening / closing mechanism described above, that is, the ZIF connector is provided with an opening / closing lever that protrudes from the housing of the connector in order to rotate the cam. The ZIF connector is configured so as to open and close the contacts of a pair of opposing contacts by operating the open / close lever.

  However, a connector, a so-called board-to-board connector, in which a receptacle mounted on the surface of one printed circuit board and a plug mounted on the surface of the other printed circuit board are connected, and the surfaces of these printed circuit boards face each other. In (Board to Board Connector), there is a problem that it is difficult to operate the open / close lever.

  In addition, electric / electronic devices to which these receptacles or plugs are attached include portable devices that are used outdoors, and these receptacles and plugs are required to have a waterproof structure that prevents intrusion of rainwater and the like. However, there is also a problem that waterproofing is difficult by projecting the open / close lever to the outside of the housing.

  If a ZIF connector capable of easily inserting and removing one connector into and from the other connector without providing an opening / closing lever can be realized, there is no need to operate the opening / closing lever, which is convenient. Further, if a ZIF connector can be realized in which one connector can be easily inserted into and removed from the other connector without providing an opening / closing lever, the ZIF connector can be waterproofed. The above can be said to be the subject of the present invention.

  The present invention has been made in view of such a problem, and is a ZIF connector in which one connector can be easily inserted into and removed from another connector without operating an opening / closing lever. The purpose is to provide.

  The present inventors configure a ZIF connector by a receptacle having a normally open type contact opening / closing mechanism and a plug having a header portion, and when the header portion is inserted into a recess provided in the receptacle, the pair of contacts are closed. We found that these problems can be solved by creating a mechanism and disposing waterproof shutters in the recesses of the receptacle and the opening of the plug, respectively. Based on this, the following new ZIF connector was invented. It came to do.

  (1) A ZIF connector in which a receptacle and a plug can be fitted to each other, wherein the receptacle has a first opening having a substantially rectangular shape on one surface and a hollow inside, and the first housing. A first shutter that closes the first opening from the inside of the first housing, and a pair of shafts that are disposed to face the inside of the first housing, and that are pivotally connected to the inner wall of the first housing. And a plurality of bellows-shaped first contacts whose intermediate portions are fixed to the cam block and contact points are provided at the front end portions, and a plurality of first contacts arranged in parallel so that these contact points are opposed to each other. One contact and a fixed end are fixed to the inner wall of the first housing, a free end is in contact with a base end of the first contact, and a pair of the contacts are urged to open each other. A plurality of tab contacts, a pair of pins arranged so as to face the inside of the first housing, projecting from the other surface of the first housing toward one surface, and guiding the first shutter; And a pair of first urging members for urging the first shutter toward the first opening, and the plug is erected at a central portion of one surface, and A flat header portion that can be inserted into the opening, a frame portion that surrounds the header portion, and a second opening that is opened between the header portion and the frame portion, the first housing being capable of inserting the first housing. A second housing having two openings; a pair of holes into which the pins can be inserted; a second shutter that closes the second opening from the inside of the second housing; and one end and the other end in an L shape Bent into the header A plurality of second contacts arranged in parallel in a direction in which the one end portions oppose each other with a first portion interposed therebetween, and a pair of second urging members that urge the second shutter toward the second opening The cam block is engaged with the first shutter that is moved by being pushed by the header portion, and the pair of the contacts are in contact with one end portion of the second contact. ZIF connector with cam piece to close one contact.

  In the ZIF connector according to the invention of (1), the receptacle and the plug can be fitted to each other. The receptacle includes a first housing having a hollow inside, a first shutter, and a pair of cam blocks.

  The first housing has a substantially rectangular first opening on one surface. The first shutter closes the first opening from the inside of the first housing. The pair of cam blocks are disposed to face the inside of the first housing. In addition, the cam block has a pair of shafts projecting at both ends rotatably connected to the inner wall of the first housing.

  The receptacle includes a plurality of bellows-shaped first contacts, a plurality of tab contacts, a pair of pins, and a pair of first biasing members. The first contact has an intermediate portion fixed to the cam block and a contact at the tip. The plurality of first contacts are arranged in parallel in a pair so that their contact points face each other.

  The tab contact has a fixed end fixed to the inner wall of the first housing and a free end in contact with the base end of the first contact. The free ends of these tab contacts urge the force in a direction to open the pair of contacts of the first contact.

  The pair of pins are arranged to face the inside of the first housing. These pins protrude from the other surface of the first housing toward one surface. These pins can guide the first shutter. The pair of first urging members includes these pins. The pair of first urging members urge the first shutter toward the first opening.

  On the other hand, the plug includes a second housing and a second shutter. The second housing has a flat header portion, a frame portion, and a second opening. The header portion is erected at the center of one surface of the second housing. The header portion can be inserted into the first opening. The frame part surrounds the header part. The second opening is opened between the header portion and the frame portion. A first housing can be inserted into the second opening.

  The second shutter has a pair of holes in both wings into which a pair of pins can be inserted. The second shutter closes the second opening from the inside of the second housing.

  The plug includes a plurality of second contacts and a pair of second urging members. One end and the other end of the second contact are bent in an L shape. And these 2nd contacts are arranged in parallel by a pair in the direction which one end part opposes with the header part in between. The pair of second urging members urges the second shutter toward the second opening.

  The cam block has a cam piece. The cam piece can close the pair of first contacts so that the first shutter that is moved by being pushed by the header portion is engaged, and the pair of contacts are in contact with one end of the second contact.

  Here, the housing has an insulating property. The insulating housing may be a housing made of a non-conductive material, and a synthetic resin can be molded to obtain an insulating housing having a desired shape.

  The housing may be rectangular, which means that the receptacle and plug according to the invention are rectangular connectors having a rectangular coupling surface. And the receptacle and plug by this invention have the 1st opening and 2nd opening which can be mutually fitted.

  The cam block is made of an insulating synthetic resin, and fixes intermediate portions of the plurality of first contacts. The plurality of first contacts may be fixed to the cam block by press-fitting, and the first contacts may be fixed to the cam block by integrally forming the plurality of first contacts with the cam block.

  The contact has conductivity, and a conductive contact having a desired shape can be obtained by punching or bending a conductive metal plate. In consideration of easiness of processing, spring characteristics, conductivity, and the like, for example, a copper alloy is preferably used for the contact, but the contact is not limited to the copper alloy.

  The plurality of first contacts being arranged in a pair so that their contacts are opposed to each other means that the receptacle according to the present invention is a dual in-line type connector. The dual in-line type connector has contacts arranged in two rows. Further, the parallel arrangement means that they are arranged in a row in close proximity to each other.

  In a state where the plug is not inserted into the receptacle, the contact of the pair of first contacts facing each other is biased by the tab contact. That is, the receptacle according to the present invention has a normally open type contact opening / closing mechanism.

  When the plug is inserted into the receptacle, it is pushed by the header portion and the first shutter moves inside the first housing. When the first shutter is engaged with the cam piece and the plug is further inserted into the receptacle, the pair of cam blocks rotate in the direction in which the pair of contact points facing each other close. And a pair of contact can contact the one end part of the 2nd contact.

  The ZIF connector according to the invention of (1) can operate the contact opening / closing mechanism only by inserting and removing the plug into the receptacle without providing an opening / closing lever for operating the contact opening / closing mechanism. The ZIF connector according to the invention of (1) is convenient because the plug can be easily inserted into and removed from the receptacle without providing an opening / closing lever on the receptacle.

  The ZIF connector according to the invention of (1) facilitates waterproofing because the open / close lever does not protrude outside the housing. The ZIF connector according to the invention of (1) can be suitably used for electric / electronic devices used outdoors.

  (2) The first housing has a frame-shaped first seal member that is in contact with the outer edge of the first shutter and waterproofs, and the second housing is in contact with the outer edge of the second shutter. The ZIF connector according to (1), having a frame-shaped second seal member that waterproofs and a frame-shaped third seal member that contacts and waterproofs the inner edge of the third opening that escapes the header portion.

  (3) The plurality of first contacts include a plurality of first signal contacts having a narrow width disposed at a central portion of the cam block, and a pair of wide first width contacts disposed on both wings of the first signal contacts. A plurality of second contacts, a plurality of second signal contacts having a narrow width connected to the first signal contact, and a second power supply contact having a large width connected to the first power contact. The plurality of tab contacts include a plurality of narrow third signal contacts disposed in the central portion of the first housing and a pair of wide width disposed on both wings of the third signal contacts. The ZIF connector according to (1) or (2), including a third power contact.

  (4) The ZIF connector according to any one of (1) to (3), wherein the receptacle is surface-mounted on one printed circuit board, and the plug is surface-mounted on the other printed circuit board.

  The ZIF connector according to the present invention can easily insert and remove the receptacle from the plug without providing an opening / closing lever. The ZIF connector according to the present invention is convenient because there is no need to operate the opening / closing lever. Further, the ZIF connector according to the present invention facilitates waterproofing because the open / close lever does not protrude outside the housing.

It is a perspective view showing the composition of the ZIF connector by one embodiment of the present invention, and is a state figure which arranged the receptacle and the plug opposite. It is a perspective exploded view showing the configuration of the receptacle according to the embodiment. FIGS. 3A and 3B are views showing a configuration of a receptacle according to the embodiment, FIG. 3A is a plan view of the receptacle, FIG. 3B is a front view of the receptacle, FIG. 3C is a bottom view of the receptacle, and FIG. ) Is a right side view of the receptacle. It is a perspective exploded view showing the configuration of the plug according to the embodiment. FIG. 5A is a plan view of the plug, FIG. 5B is a front view of the plug, FIG. 5C is a bottom view of the plug, and FIG. ) Is a right side view of the plug. It is a perspective sectional view showing the composition of the ZIF connector by the above-mentioned embodiment, and is a state figure before inserting a receptacle in a plug. It is a perspective sectional view showing the configuration of the ZIF connector according to the embodiment, and is a state diagram just before inserting the receptacle into the plug. It is a perspective sectional view showing the composition of the ZIF connector by the above-mentioned embodiment, and is a state figure in the middle of inserting a receptacle in a plug. It is a longitudinal cross-sectional view which shows the structure of the ZIF connector by the said embodiment, and is a state figure before inserting a receptacle in a plug. It is a longitudinal cross-sectional view which shows the structure of the ZIF connector by the said embodiment, and is a state figure in the middle of inserting a receptacle into a plug. It is a longitudinal cross-sectional view which shows the structure of the ZIF connector by the said embodiment, and is a state figure which inserted the receptacle completely in the plug.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

[Configuration of ZIF connector]
First, the configuration of a ZIF connector according to an embodiment of the present invention will be described. FIG. 1 is a perspective view showing a configuration of a ZIF connector according to an embodiment of the present invention, in which a receptacle and a plug are arranged to face each other.

  FIG. 2 is an exploded perspective view showing the structure of the receptacle according to the embodiment. 3A and 3B are views showing the configuration of the receptacle according to the embodiment, FIG. 3A is a plan view of the receptacle, FIG. 3B is a front view of the receptacle, and FIG. 3C is a bottom view of the receptacle. FIG. 3D is a right side view of the receptacle.

  FIG. 4 is a perspective exploded view showing the configuration of the plug according to the embodiment. 5A and 5B are diagrams showing the configuration of the plug according to the embodiment. FIG. 5A is a plan view of the plug, FIG. 5B is a front view of the plug, and FIG. 5C is a bottom view of the plug. FIG. 5D is a right side view of the plug.

  Referring to FIG. 1, a ZIF connector (hereinafter abbreviated as a connector) 100 according to an embodiment of the present invention can fit a receptacle 10 and a plug 20 to each other. The receptacle 10 is surface-mounted on one printed circuit board 1p. The plug 20 is surface-mounted on the other printed circuit board 2p. The connector 100 according to the embodiment realizes a board-to-board connector in which the surfaces of the printed boards 1p and 2p are opposed to each other.

(Receptacle structure)
Next, the configuration of the receptacle 10 according to the embodiment of the present invention will be described. Referring to FIGS. 1 to 3, the receptacle 10 includes a first housing 1 having a substantially rectangular parallelepiped outer shape and a hollow inside. The first housing 1 has a substantially rectangular first opening 1k on one surface. The first opening 1 k communicates with the inside of the first housing 1 and faces the opening provided on the other surface (bottom surface) of the first housing 1.

  In addition, the receptacle 10 includes a strip-shaped first shutter 11. The first shutter 11 closes the first opening 1 k from the inside of the first housing 1. A pair of guide holes 11h and 11h are provided on both wings of the first shutter 11 in the longitudinal direction. The first shutter 11 includes a shield plate 11a for electromagnetic shielding.

  2 and 3, the receptacle 10 includes a pair of cam blocks 1a and 1b. The pair of cam blocks 1 a and 1 b are disposed to face the inside of the first housing 1. Each of these cam blocks 1a and 1b has a pair of cylindrical shafts 11s and 11s protruding from both ends. These shafts 11 s and 11 s are rotatably connected to the inner wall of the first housing 1.

  Further, the pair of cam blocks 1a and 1b have cam pieces 1c protruding in a step shape on one surface. Although the cam block 1a and the cam block 1b are the same, they are distinguished by changing the reference numerals for convenience of explanation.

  The receptacle 10 includes a plurality of bellows-shaped first contacts 3. The intermediate portions of the first contacts 3 are fixed to the cam blocks 1a and 1b by integral molding. A contact 3 c is provided at the tip of the first contact 3. The plurality of first contacts 3 are arranged in parallel as a pair so that their contact points 3c face each other.

  The plurality of first contacts 3 include a plurality of first signal contacts 31 and a pair of first power supply contacts 32 and 32. The plurality of first signal contacts 31 have a narrower width and are arranged at the center of the cam blocks 1a and 1b. The pair of first power supply contacts 32 and 32 have a wide width, and are disposed on both wings of the plurality of first signal contacts 31.

  The receptacle 10 includes a plurality of U-shaped tab contacts 5 that are grouped so as to face each other. The tab contact 5 is fixed to the inner wall of the first housing 1 by press-fitting a fixed end portion of a piece 5a that is inverted in a U shape. Further, the free end portion of the piece 5a is in contact with the base end portion of the first contact 3, and urges a force in a direction to open the pair of contact points 3c and 3c. Furthermore, the other piece 5b of the tab contact 5 extends to the bottom surface of the first housing 1 and can be soldered to the printed circuit board 1p (see FIG. 1).

  The plurality of tab contacts 5 include a plurality of third signal contacts 51 and a pair of third power supply contacts 52 and 52. The plurality of third signal contacts 51 have a narrower width and are arranged at the center of the first housing 1. The pair of third power supply contacts 52, 52 has a wide width, and is disposed on both wings of the plurality of third signal contacts 51.

  The plurality of third signal contacts 51 are arranged one-on-one so as to correspond to the plurality of first signal contacts 31. The pair of third power contacts 52 and 52 are arranged one-on-one so as to correspond to the pair of first power contacts 32 and 32.

  2 and 3, the receptacle 10 includes a pair of reinforcing tabs 7a and 7b. These reinforcing tabs 7a and 7b are formed by bending a developed conductive metal plate. These reinforcing tabs 7a and 7b have a vertical piece 71 and a horizontal piece 72 that are refracted substantially at right angles. The reinforcing tab 7a and the reinforcing tab 7b are the same, but for the sake of convenience of description, the reference numerals are changed and distinguished.

  The vertical piece 71 is press-fitted into the inner walls of both wings of the first housing 1. The vertical piece 71 has a pair of support pieces 73 and 73 that partially project and support the pair of opposed shafts 11s and 11s. The pair of support pieces 73 and 73 have tip portions formed in an arc shape so as to rotatably support the pair of shafts 11s and 11s. The horizontal piece 72 extends to the bottom surface of the first housing 1 and can be soldered to the printed circuit board 1p.

  The pair of reinforcing tabs 7 a and 7 b have pins 7 p that protrude from the horizontal piece 72 and extend substantially parallel to the vertical piece 71. The pair of pins 7p and 7p are arranged so as to face the inside of the first housing 1.

  The pair of pins 7p and 7p are fitted in a pair of guide holes 11h and 11h provided on both wings of the first shutter 11. The first shutter 11 can be moved inside the first housing 1 by being guided by the pair of pins 7p and 7p. The pair of pins 7p and 7p have their tips slightly projecting from one surface (surface) of the first housing 1.

  The receptacle 10 includes compression coil springs 7s and 7s serving as a pair of first urging members. These compression coil springs 7s and 7s have a pair of pins 7p and 7p, respectively. One end of these compression coil springs 7 s and 7 s is in contact with both blades of the first shutter 11. The other ends of the compression coil springs 7s and 7s are in contact with the pair of horizontal pieces 72 and 72. Accordingly, the compression coil springs 7s and 7s can urge the first shutter 11 toward the first opening 1k.

  The first housing 1 has a frame-shaped first seal member 91 inside. The first seal member 91 is attached to the inner wall of the first housing 1 so as to surround the first opening 1k. Then, the first seal member 91 comes into contact with the outer edge of the first shutter 11 so that the receptacle 10 can be waterproofed.

(Plug configuration)
Next, the configuration of the plug 20 according to the embodiment of the present invention will be described. Referring to FIG. 1 or FIG. 4 and FIG. 5, the plug 20 includes a second housing 2 whose outer shape is a substantially rectangular parallelepiped. The second housing 2 has a flat header portion 2h, a frame portion 2f, and a second opening 2k. The header portion 2 h is erected at the center of one surface of the second housing 2. The header portion 2h can be inserted into the first opening 1k.

  The frame part 2f surrounds the header part 2h. The second opening 2k is opened between the header portion 2h and the frame portion 2f. The second opening 2k communicates with the inside of the second housing 2 and faces an opening provided on the other surface (bottom surface) of the second housing 2. The first housing 1 can be inserted into the second opening 2k.

  The plug 20 includes a second shutter 21 in the form of a strip plate. The second shutter 21 closes the second opening 2k from the inside of the second housing 2. The second shutter 21 has a pair of holes 21h and 21h on both wings. A pair of pins 7p and 7p can be inserted into these holes 21h and 21h.

  The second shutter 21 has a rectangular third opening 23h at the center. The third opening 23h is fitted to the header portion 2h. The second shutter 21 has a shield plate 21a for electromagnetic shielding.

  The plug 20 includes a plurality of strip-shaped second contacts 4 grouped so as to face each other. The second contact 4 has one end 4a and the other end 4b bent in an L shape. The second contact 4 has a press-fitting piece 4c that is bent in an L shape at the other end 4b and faces the one end 4a.

  One end portion 4a of the second contact 4 is press-fitted into a groove 21d provided on the mounting surface of the header portion 2h. The plurality of second contacts 4 are arranged in parallel with each other in a direction in which the one end portions 4a are opposed to each other with the header portion 2h interposed therebetween.

  One end 4 a of the second contact 4 is press-fitted into the inner wall of the second housing 2 from the bottom surface. The header portion 2 h is supported by the second housing 2 via a plurality of second contacts 4. The other end 4b of the second contact 4 can be soldered to the printed circuit board 2p (see FIG. 1).

  The plurality of second contacts 4 include a plurality of second signal contacts 41 and a pair of second power supply contacts 42 and 42. The plurality of second signal contacts 41 have a narrower width and are arranged at the center of the header portion 2h. The pair of second power contacts 42, 42 have a wide width, and are disposed on both wings of the plurality of second signal contacts 41.

  The plurality of second signal contacts 41 are arranged one-on-one so as to correspond to the plurality of first signal contacts 31. Further, the pair of second power contacts 42 and 42 are arranged one-on-one so as to correspond to the pair of first power contacts 32 and 32.

  4 and 5, the plug 20 includes a pair of reinforcing tabs 6a and 6b. These reinforcing tabs 6a and 6b are formed by bending a developed conductive metal plate. These reinforcing tabs 6a and 6b have a vertical piece 61 and a horizontal piece 62 that are refracted substantially at right angles. Although the reinforcing tab 6a and the reinforcing tab 6b are the same, they are distinguished by changing the reference numerals for convenience of explanation.

  The vertical piece 61 is press-fitted into the inner walls of both wings of the second housing 2. A pin 6 p protrudes from the horizontal piece 62 at the center of the vertical piece 61. The pin 6p extends substantially parallel to the vertical piece 61. A compression coil spring 6s is interposed in the pin 6p. That is, the plug 20 includes the compression coil springs 6s and 6s serving as a pair of second urging members.

  One end of these compression coil springs 6 s and 6 s is in contact with both blades of the second shutter 21. The other ends of the compression coil springs 6s and 6s are in contact with the pair of horizontal pieces 62 and 62. Therefore, these compression coil springs 6s and 6s urge the second shutter 21 toward the second opening 2k.

  The distal end portions of the pair of horizontal pieces 62 and 62 extend to the center portion inside the second housing 2 and are press-fitted into both wings of the header portion 2h. That is, the header portion 2 h is supported by the second housing 2 via the pair of horizontal pieces 62 and 62. The pair of reinforcing tabs 6a and 6b have a pair of support pieces 63 and 63 that extend to the opposite side of the horizontal pieces 62 and 62 and can be soldered to the printed circuit board 2p.

  The second housing 2 includes a frame-shaped second seal member 82 and a frame-shaped third seal member 83 inside. The second seal member 82 is attached to the inner wall of the second housing 2 so as to surround the second opening 2k. The plug 20 can be waterproofed by contacting the second seal member 82 so as to be in close contact with the outer edge of the second shutter 21.

  On the other hand, the third seal member 83 is attached to the outer wall of the header portion 2h so as to surround the periphery of the flange portion 20h of the header portion 2h. And the 3rd seal member 83 contact | abuts to the inner edge of the 3rd opening 23h which escapes the header part 2h, and the plug 20 can be waterproofed.

[Operation of ZIF connector]
Next, the operation and action of the ZIF connector 100 will be described while supplementing the configuration of the ZIF connector 100 according to the embodiment.

  FIG. 6 is a perspective sectional view showing the configuration of the ZIF connector according to the embodiment, and is a state diagram before the receptacle is inserted into the plug. FIG. 7 is a perspective cross-sectional view illustrating the configuration of the ZIF connector according to the embodiment, and is a state diagram immediately before inserting the receptacle into the plug. FIG. 8 is a perspective sectional view showing the configuration of the ZIF connector according to the embodiment, and is a state diagram in the middle of inserting the receptacle into the plug.

  FIG. 9 is a longitudinal sectional view showing the configuration of the ZIF connector according to the embodiment, and is a state diagram before inserting the receptacle into the plug. FIG. 10 is a longitudinal sectional view showing the configuration of the ZIF connector according to the embodiment, and is a state diagram in the middle of inserting the receptacle into the plug. FIG. 11 is a vertical cross-sectional view showing the configuration of the ZIF connector according to the embodiment, in which the receptacle is completely inserted into the plug.

  First, the assembly procedure of the receptacle 10 will be described with reference to FIG. 2 and FIG. 6 or FIG. First, the first seal member 91 is attached to the inner wall of the first housing 1 using an adhesive or the like. Next, the first shutter 11 and the pair of cam blocks 1 a and 1 b are temporarily inserted into the first housing 1. A plurality of first contacts 3 are integrally formed in advance with the pair of cam blocks 1a and 1b.

  Next, the pair of reinforcing tabs 7 a and 7 b are press-fitted from the bottom surface of the first housing 1 with the compression coil spring 7 s interposed in the pin 7 p. As shown in FIG. 9, the pair of compression coil springs 7 s and 7 s can urge the first shutter 11 toward the first opening 1 k. The shafts 11 s and 11 s of the pair of cam blocks 1 a and 1 b are supported so as to be rotatable inside the first housing 1.

  Next, the fixed ends of the pieces 5 a of the plurality of tab contacts 5 are press-fitted from the bottom surface of the first housing 1. And the free end part of the piece 5a of the some tab contact 5 contact | abuts to the base end part of the 1st contact 3, and the state which opens a pair of opposing contact 3c * 3c mutually is maintained.

  Next, the assembly procedure of the plug 20 will be described with reference to FIG. 4 and FIG. 6 or FIG. First, the second seal member 82 and the third seal member 83 are respectively attached to the second housing 2 and the header portion 2h using an adhesive or the like.

  Next, in a state where the second shutter 21 is interposed in the header portion 2h, the one end portions 4a of the plurality of second contacts 4 are press-fitted into the mounting surface of the header portion 2h. Further, the tip portions of the horizontal pieces 62 of the pair of reinforcing tabs 6a and 6b are press-fitted into both wings of the header portion 2h.

  Next, with the compression coil spring 6s interposed between the pair of pins 6p and 6p, the plurality of second contacts 4 and the pair of reinforcing tabs 6a and 6b are press-fitted from the bottom surface of the second housing 2, and the plug 20 Assembly is complete.

  Next, the operation of the ZIF connector 100 according to the embodiment will be described. Referring to FIG. 6 or FIG. 9, in the receptacle 10, the first shutter 11 closes the first opening 1 k from the inside of the first housing 1. The plurality of first contacts 3 have a pair of opposing contacts 3c and 3c open to each other. On the other hand, in the plug 20, the second shutter 21 closes the second opening 2 k from the inside of the second housing 2.

  Referring to FIG. 7, when the receptacle 10 is inserted toward the plug 20, one surface of the first housing 1 comes into contact with the second shutter 21 through the second opening 2k. Further, the header portion 2h contacts the first shutter 11 via the first opening 1k.

  Referring to FIG. 8, when the receptacle 10 is further inserted toward the plug 20, the second shutter 21 moves toward the bottom surface of the second housing 2 against the pair of compression coil springs 6 s and 6 s. Further, the first shutter 11 moves toward the bottom surface of the first housing 1 against the pair of compression coil springs 7 s and 7 s. The pair of pins 7p and 7p are inserted into a pair of holes 21h and 21h provided in the second shutter 21.

  Referring to FIG. 10, when the receptacle 10 is further inserted toward the plug 20, the first shutter 11 that is moved by being pushed by the header portion 2h eventually has a pair of cam pieces provided on the pair of cam blocks 1a and 1b. Engages 1c and 1c.

  Next, in the process from FIG. 10 to FIG. 11, the pair of cam pieces 1 c and 1 c are pushed by the first shutter 11, and the pair of cam blocks 1 a and 1 b have a pair of opposed contacts with the shaft 11 s as a fulcrum. 3c and 3c rotate in the closing direction.

  As shown in FIG. 11, in a state where the receptacle 10 is completely inserted into the plug 20, the pair of first contacts 3, 3 are closed to each other, and these contact points 3 c, 3 c are connected to one end 4 a of the second contact 4. In contact. When the receptacle 10 is removed from the plug 20, a series of operations proceeds in reverse, returning to the initial state.

  As described above, the ZIF connector 100 according to the embodiment can easily insert / remove the receptacle 10 into / from the plug 20 without providing an opening / closing lever. The ZIF connector 100 according to the embodiment is convenient because it is not necessary to operate the opening / closing lever. In addition, the ZIF connector 100 according to the embodiment facilitates waterproofing because the open / close lever does not protrude outside the housing.

  In the receptacle 10 according to the embodiment, the first housing 1 has a frame-shaped first seal member 91 that is in contact with the outer edge of the first shutter 11 to be waterproof, so that the receptacle 10 can be waterproofed alone. In the plug 20 according to the embodiment, the second housing 2 abuts against the outer edge of the second shutter 21 to be waterproofed with a frame-shaped second seal member 82 and the inner edge of the third opening 23h that escapes the header portion 2h. Since the frame-shaped third seal member 83 that contacts and waterproofs is provided inside, the plug 20 can be waterproofed alone.

  In the ZIF connector 100 according to the embodiment, the pair of first contacts 3 and 3 are closed to each other after the receptacle 10 is fitted to the plug 20, and these contact points 3 c and 3 c are in contact with one end portion 4 a of the second contact 4. . Accordingly, since the wiping distance (sliding distance) between the first contact 3 and the second contact 4 is short, it is possible to extend the life of the first contact 3 and the second contact 4. In other words, it is possible to increase the number of insertions / removals of the receptacle 10 and the plug 20.

  In the receptacle 10 according to the embodiment, a pair of pins 7 p and 7 p provided on the pair of reinforcing tabs 7 a and 7 b are electrically connected to a shield plate 11 a provided inside the first shutter 11. On the other hand, in the plug 20 according to the embodiment, a pair of pins 6 p and 6 p provided on the pair of reinforcing tabs 6 a and 6 b are electrically connected to a shield plate 21 a provided inside the second shutter 21.

  When the receptacle 10 is inserted into the plug 20, the pair of pins 7p and 7p are electrically connected to the shield plate 21a before the first contact 3 and the second contact 4 come into contact with each other. Accordingly, the static electricity charged in the first housing 1 or the second housing 2 can be released to the other printed circuit board 2p or one printed circuit board 1p through the pair of reinforcing tabs 7a and 7b or the pair of reinforcing tabs 6a and 6b. it can. That is, the ZIF connector 100 according to the embodiment is provided with a countermeasure against electrostatic discharge (ESD).

DESCRIPTION OF SYMBOLS 1 1st housing 1a * 1b A pair of cam block 1c Cam piece 1k 1st opening 2 2nd housing 2f Frame part 2h Header part 2k 2nd opening 3 1st contact 3c Contact point 4 2nd contact 4a One end part 4b Other end part 5 Tab contact 6s compression coil spring (second biasing member)
7p · 7p A pair of pins 7s Compression coil spring (first biasing member)
DESCRIPTION OF SYMBOLS 10 Receptacle 11 1st shutter 11s * 11s A pair of shaft 20 Plug 21h * 21h A pair of hole 100 ZIF connector

Claims (4)

A ZIF connector in which the receptacle and the plug can be fitted to each other,
The receptacle is
A first housing having a substantially rectangular first opening on one side and having a hollow interior;
A first shutter for closing the first opening from the inside of the first housing;
A pair of cam blocks disposed opposite to the inside of the first housing and having a pair of shafts projecting at both ends rotatably connected to the inner wall of the first housing;
A plurality of first contacts arranged in parallel so that the intermediate portion is fixed to the cam block and a contact is provided at a tip portion, and the contacts are opposed to each other;
The fixed end is fixed to the inner wall of the first housing, the free end is in contact with the base end of the first contact, and the pair of contacts of the first contact are biased in a direction to open each other. Multiple tab contacts,
A pair of pins arranged to face the inside of the first housing and projecting from the other surface of the first housing toward the one surface to guide the first shutter;
A pair of first urging members that embed these pins and urge the first shutter toward the first opening;
The plug is
A flat plate-like header portion standing on the central portion of one surface and insertable into the first opening, a frame portion surrounding the header portion, and a second opening opened between the header portion and the frame portion A second housing having a second opening into which the first housing can be inserted;
A second shutter having a pair of holes into which the pin can be inserted in both wings and closing the second opening from the inside of the second housing;
A plurality of second contacts in which one end and the other end are bent in an L shape, and the one end is disposed in parallel with each other with the header portion in between;
A pair of second biasing members that bias the second shutter toward the second opening,
The cam block closes the pair of first contacts so that the first shutter that is moved by being pushed by the header portion engages and the pair of contacts contacts one end of the second contact. ZIF connector with cam piece. The first housing has a frame-shaped first seal member which is in contact with an outer edge of the first shutter and waterproofs,
The second housing includes a frame-shaped second seal member that contacts and is waterproofed against the outer edge of the second shutter, and a frame-shaped third seal member that contacts and waterproofs the inner edge of the third opening that escapes the header portion. And a ZIF connector according to claim 1. The plurality of first contacts are:
A plurality of first signal contacts having a narrow width disposed at a central portion of the cam block;
A pair of wide first power contacts arranged on both wings of these first signal contacts,
The plurality of second contacts include a plurality of narrow second signal contacts connected to the first signal contacts, and a wide second power contact connected to the first power contacts,
The plurality of tab contacts include a plurality of third signal contacts having a narrow width disposed at the center of the first housing, and a pair of third power contacts having a large width disposed on both wings of the third signal contacts. The ZIF connector according to claim 1, comprising:   The ZIF connector according to claim 1, wherein the receptacle is surface-mounted on one printed circuit board, and the plug is surface-mounted on the other printed circuit board.

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