JP2006221926A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector which makes it difficult to make unauthorized electrical connections of a contact lead section on a side-type connector. <P>SOLUTION: A connector 10 is mounted on a printed circuit board 1p, while a mating connector is inserted roughly in parallel with a mounting plane 11p on the printed circuit board 1p. The connector 10 is provided with a housing 1 having a contact compartment 11 with either one of ends open and a contact 2 held inside the housing 1. On the contact 2, its lead section 21 is extended into the contact compartment 11 toward an aperture 11a, and is bended at right angle approximately. Then, the lead section 21 protrudes out of the contact compartment 11 to be joined with the printed circuit board 1p. A plane on the housing 1 with the lead section 21 projected is joined against the printed circuit board 1p, and is provided with a cover 3 for blocking the aperture 11a. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a connector for electrical connection. In particular, it relates to the structure of a connector mounted on a printed circuit board.

  For example, one connector is mounted on a printed board, the other connector has an electric wire, and the printed board and the electric wire are electrically connected by connecting one connector and the other connector. In the power supply connector, the one connector is called a jack, and usually two or three male contacts are inserted into the jack for the printed circuit board. On the other hand, the other connector coupled to the jack is called a plug, and a female contact is usually inserted.

  In a shell type multi-pole connector, the one connector is called a receptacle, and usually a plurality of male contacts are inserted. On the other hand, the other connector is called a plug and usually has a plurality of female contacts inserted therein. The receptacle is then coupled to the plug.

  Of such a pair of connectors, for example, the plug has a plurality of crimp contacts, and the ends of the electric wires are crimped to the crimp contacts. In such a crimping connector (plug), a part of the crimping portion (crimp barrel) of the crimping contact is exposed. The above-described crimp connector is used in gaming machines such as pachinko and pachislot machines, for example.

  On the other hand, there are those who try to illegally acquire pachinko balls and medals by applying various illegal operations to the gaming machines as described above. A fraudulent person called a so-called Goto master attempts to perform an operation such as shorting the exposed portion of the crimp connector disposed inside the gaming machine or connecting an unauthorized circuit board to the exposed portion of the crimp connector. Plan.

  A connector cover that can be applied to an existing crimp connector and prevents electrical connection to the exposed portion of the crimp connector with a simple configuration in order to prevent unauthorized operation of the crimp connector provided in the gaming machine as described above. (For example, refer to Patent Document 1).

The connector cover according to Patent Document 1 is composed of a pair of connector covers having the same shape that are fitted with a crimping connector sandwiched therebetween and attached to the crimping connector. And it is set as the structure which covers the connection area | region of an electric wire and a contact in the state which clamped the crimp connector. By fitting the pair of connector covers to each other and holding the crimping connector between them, the connection part between the contact and the electric wire is covered with the connector cover, and unauthorized electrical connection to the crimping connector from the outside can be prevented. It will be possible.
JP 2003-331946 A

  As a connector paired with the above-described crimp connector, for example, there is a printed circuit board connector (jack or receptacle). The printed circuit board connector includes a vertically mounted connector (so-called top type connector) in which a mating connector is coupled from a direction orthogonal to the component mounting surface of the printed circuit board, and the component mounting surface of the printed circuit board. There are two types of connectors (so-called side-type connectors) in which the mating connector is coupled from the direction parallel to the connector.

  When a so-called top-type connector is used in a gaming machine as described above, the contact lead portion is generally surrounded by a housing on the component mounting surface of the printed circuit board, so that an unauthorized person is electrically connected to this contact. It is quite difficult to do.

  On the other hand, a so-called side connector generally has a lead portion of a contact protruding from a housing, bent at a substantially right angle, and soldered to a component mounting surface of a printed circuit board. As described above, the side-type connector has the lead portion of the contact exposed to the outside, and an unauthorized person can easily make an electrical connection to the contact.

  There is a demand for measures that make it difficult for an unauthorized person to make an electrical connection to a contact of a side connector attached to a printed circuit board. For example, after mounting the side-type connector on a printed circuit board, a measure can be considered in which the exposed portion of the contact is coated with an insulating synthetic resin. However, the above-mentioned measures cause the inconvenience that the side-type connector is replaced for maintenance or repair and then coated again. Further, after mounting the side connector on the printed circuit board, a measure may be considered in which the exposed portion of the contact is enclosed with a cover (or cap) together with the housing. However, assembling another member such as a cover is considered undesirable because it involves a new mounting operation in a situation where automatic mounting is widespread. It is preferable that the above-mentioned countermeasure is included in the structure of the side connector. That is, these may be the subject of the present invention.

  In view of such problems, the present invention provides a connector that makes it difficult for a lead portion of a contact included in the side-type connector to be illegally electrically connected in a side-type connector mounted on a printed circuit board. With the goal.

  In order to satisfy the above object, the inventor provides a four-wall contact housing chamber at one end of the side-type connector and closes the contact housing chamber with a cover. The following new connector has been invented that makes it difficult to electrically connect the lead portion of the contact disposed in the room.

  (1) A connector in which a mating connector is inserted substantially parallel to a mounting surface of a printed circuit board and is mounted on the printed circuit board, and an insulating housing having a contact housing chamber having one end opened; A plurality of conductive contacts held inside the housing, wherein the plurality of contacts have one lead portion extending into the contact housing chamber toward the opening and bent at a substantially right angle. The housing protrudes out of the contact housing chamber and is joined to the printed circuit board. The flat surface of the housing from which the lead protrudes is in contact with the printed circuit board and is provided with an insulating cover that closes the opening. Connector.

  In the invention of (1), the mating connector is inserted in substantially parallel to the mounting surface of the printed circuit board, and is mounted on the printed circuit board, and has an insulating property having a contact accommodating chamber having one end opened. And a plurality of conductive contacts held inside the housing.

  The mating connector may be a connector with electric wires or a printed circuit board connector. Therefore, the combination of the mating connector and the connector according to the present invention may be a so-called wire-to-board connector, or a so-called board-to-board connector. Also good.

  The printed board is preferably a hard board (rigid board), and may be a double-sided printed board or a multilayer printed board. For example, this printed circuit board is used in gaming machines such as pachinko and pachislot machines.

  This connector into which the mating connector is inserted substantially parallel to the mounting surface of the printed circuit board may be a horizontally mounted connector, a so-called side connector. The connector may be a power connection jack or a shell-type multipolar receptacle. Further, a lock mechanism may be provided on this connector in order to ensure mechanical or electrical coupling with the mating connector.

  The mounting of the connector on the printed board includes at least that a plurality of contacts provided on the connector are joined to the printed board. As described later, the case where the connector main body (housing) is engaged with the printed circuit board by appropriate locking means may be included. For example, a flange with a stop hole may be provided in the housing, and the flange may be fixed to the printed board with a fastener such as a screw.

  The insulating housing may be a housing made of a non-conductive material. For example, an insulating housing is obtained by molding engineering plastics such as PPS (polyphenylene sulfide) or PBT (polybutylene terephthalate). be able to.

  This housing may have a contact accommodating chamber having one end opened, and the other end may be provided with a connector accommodating chamber having a connection opening into which the mating connector is inserted, for example. The connector housing chamber may be a cavity for holding a contact called an insert cavity or a contact cavity. The contact storage chamber is a space including a place for holding or storing the contact, and may include a space formed in the housing. A part of the contacts may be arranged in the contact storage chamber by insertion, holding, storage, or the like. The contact accommodating chamber may be provided with a partition wall so as to isolate a plurality of contacts from each other, and the contact accommodating chamber may be divided into a plurality of accommodating chambers.

  This housing is formed in a substantially rectangular parallelepiped shape, for example. Then, a four-wall contact housing chamber opened at one end is formed. The housing only needs to have at least a flat surface that comes into contact with the mounting surface of the printed circuit board. For example, the surface facing the flat surface may be formed of a curved surface including an arc.

  The conductive contact may be a contact made of a conductive material, and is preferably made of a conductive metal. For example, this contact can be obtained by molding a metal plate such as copper, iron, or aluminum. In view of ease of processing and conductive performance (low electrical resistance), this contact is preferably made of copper. This contact may be a male contact, for example an elongate pin contact or an elongate plate contact.

  The contact is held inside the housing. For example, the contact is provided with a spear-shaped protrusion (contact lance), or the housing is provided with a spear-shaped protrusion (housing lance), and the contact and the housing are engaged. For example, the contact may be pressed and held inside the housing.

  In the invention of (1), the plurality of contacts are bent at substantially right angles with one lead portion extending into the contact accommodating chamber toward the opening. The lead portion protrudes out of the contact housing chamber and is joined to the printed board. A flat surface of the housing from which the lead portion protrudes is in contact with the printed circuit board, and an insulating cover for closing the opening is provided.

  For example, the contact accommodating chamber and the connector accommodating chamber are blocked by a partition, and one lead portion extends from the partition toward the opening into the contact accommodating chamber. For example, the other lead portion extends from the partition to the connector housing chamber. One lead portion extending into the contact accommodating chamber toward the opening means that the one lead portion does not extend outside the opening. The lead portion is bent at a substantially right angle, protrudes out of the contact housing chamber, and is joined to the printed board.

  Joining a lead part to a printed circuit board includes inserting the lead part into a through-hole provided in the printed circuit board and soldering, and providing a lead termination in the lead part. It may include press-fitting to a through hole provided in the printed circuit board by press-in. The press termination may be a solid type having no elasticity or a compliant type having a spring structure.

  For example, one lead portion of the contact may be bent at a substantially right angle in advance and may be press-fitted into the housing, and after the contact is press-fitted into the housing, the one lead portion may be bent at a substantially right angle. .

  This cover closes the opening of the housing because at least the lead part of the contact is covered with the cover so that one lead part cannot be seen from the outside, or one lead part from the outside is electrically or physically Inability to contact may be included. This cover is preferably made of a non-conductive material as in the housing, and is not limited to the same material as the housing as long as it is a non-conductive material. As this cover, for example, engineering plastic can be molded to obtain a substantially flat cover.

  The connector according to the present invention includes a housing and a plurality of contacts, and an opening provided at one end of the housing is closed by a cover. A connector with a cover is mounted on the printed board. In the connector according to the present invention, the contact is accommodated in the four-wall type contact accommodating chamber, and the opening of the contact accommodating chamber is closed with the cover. It is difficult. The connector according to the present invention makes it difficult to illegally connect to the contacts.

  (2) The connector according to (1), wherein the plurality of contacts are fixed inside the housing.

  For example, the contact may be a fixed contact that is difficult to remove after being incorporated into the housing by a method such as integral molding or press-fitting.

  (3) The connector according to (1) or (2), wherein a plurality of cutout grooves for allowing the one lead portion to protrude out of the contact housing chamber are provided in the opening.

  For example, in this contact, one lead portion is bent at a substantially right angle in advance, and the other lead portion is press-fitted into the housing. And the site | part from the bending part of a lead part to a front-end | tip is penetrated by a notch groove, and it can press-fit without being interrupted by opening.

  (4) The connector according to any one of (1) to (3), wherein the cover is fitted from the opening toward the inside of the housing.

  For example, the cover is provided with a pair of opposing claws, and the pair of claws are inserted into the housing from the opening. On the other hand, a pair of opposed sawtooth cuts may be formed in the opening, and the pair of claws and the pair of cuts may be fitted. After the cover is fitted into the opening, it is preferable that the cover is fitted by so-called “fitting” which cannot be easily removed, but the cover may be detachably fitted into the opening.

  (5) The connector according to any one of (1) to (4), wherein a locking unit that engages with the printed circuit board is provided on a plane of the housing from which the one lead portion protrudes.

  For example, a pair of slit pins are provided on the flat surface of the housing from which one lead portion protrudes, and the pair of slit pins are press-fitted into a locking hole provided on the printed circuit board, so that the connector and the print The substrate may be engaged. That is, this pair of slot pins may be used as the locking means. Further, for example, a pair of hooks are provided so as to protrude on the plane of the housing from which one lead portion protrudes, and the pair of hooks are inserted into locking holes provided in the printed circuit board so that the connector and the printed circuit board are You may make it engage. That is, this pair of hooks may be used as the locking means.

  Thus, by providing a locking means that engages with the printed circuit board on the flat surface of the housing from which one lead portion protrudes, this connector is not easily detached from the printed circuit board when the mating connector is inserted or removed. Reinforced so that.

  (6) The connector according to any one of (1) to (5), wherein the contacts are a pair of plate contacts.

  For example, the connector according to the present invention may be a power jack for transmitting power for power. Such a power jack is preferably a pair of plate contacts. The plate-like contact is also called a tab contact.

  The connector according to the present invention includes a housing and a plurality of contacts, and an opening provided at one end of the housing is closed by a cover. A connector with a cover is mounted on the printed board. In the connector according to the present invention, the contact is accommodated in the four-wall type contact accommodating chamber, and the opening of the contact accommodating chamber is closed with the cover. It is difficult. The connector according to the present invention makes it difficult to illegally connect to the contacts.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective external view showing an embodiment of a connector according to the present invention. In FIG. 1, the connector is viewed from one end side. FIG. 2 is a perspective external view of the connector according to the embodiment. FIG. 2 is viewing the connector from the other end side. FIG. 3 is a perspective external view of the connector according to the embodiment. FIG. 3 is a state diagram in which the cover is closed to the connector.

  FIG. 4 is a plan view of the connector according to the embodiment. FIG. 5 is a front view of the connector according to the embodiment. FIG. 6 is a bottom view of the connector according to the embodiment. FIG. 7 is a right side view of the connector according to the embodiment. FIG. 8 is a left side view of the connector according to the embodiment. 4 to 8 are state diagrams in which the cover is not attached to the connector.

  FIG. 9 is a cross-sectional view taken along the line AA of FIG. 7, and is a state diagram in which a cover is attached to the connector.

  First, the configuration of the connector according to the present invention will be described. In FIG. 9, the connector 10 is mounted on the printed circuit board 1p. In FIG. 5, a mating connector (not shown) is inserted substantially parallel to the mounting surface 11p of the printed circuit board 1p. In FIG. 5, the mating connector is inserted into the connector 10 from the direction of the arrow X1, and the mating connector is removed in the direction of the arrow X2.

  In FIG. 1, a connector 10 includes an insulating housing 1 having a contact accommodating chamber 11 having one end opened. The connector 10 also includes a pair of conductive contacts 2 held inside the housing 1. In FIG. 2, the connector 10 is provided with a connector housing chamber 12 having a connection opening 12a into which the mating connector is inserted at the other end.

  As shown in FIGS. 1 to 3, the housing 1 is formed in a substantially rectangular parallelepiped shape. In FIG. 1, a partition wall 13 is provided in the contact accommodating chamber 11, and the pair of contacts 2 are separated from each other by the partition wall 13. The contact accommodating chamber 11 has a rectangular opening 11a (see FIG. 7). On the other hand, the connector housing chamber 12 is provided with a partition wall 14, and the pair of contacts 2 are isolated from each other by the partition wall 14 (see FIGS. 2 and 9). The connector housing chamber 12 has a rectangular connection opening 12a (see FIG. 8).

  As shown in FIG. 9, the contact housing chamber 11 and the connector housing chamber 12 are blocked by a partition wall 15. A pair of contacts 2 is press-fitted into the partition wall 15 and held inside the housing 1. The pair of contacts 2 are fixed contacts that are difficult to remove after being assembled into the housing 1.

  9, one lead portion 21 of the contact 2 extends from the partition wall 15 into the contact accommodating chamber 11 toward the opening 11a (see FIG. 1). The lead portion 21 is bent at a substantially right angle, protrudes out of the contact housing chamber 11, and is soldered to the printed circuit board 1p. The flat surface of the housing 1 from which the lead portion 21 projects is in contact with the printed circuit board 1p.

  On the other hand, the other lead portion 22 of the contact 2 extends into the connector housing chamber 12 from the partition wall 15 toward the connection opening 12a (see FIG. 8) (see FIG. 8 or FIG. 9). The lead part 22 contacts a contact (not shown) of the mating connector.

  In FIG. 1, a pair of notch grooves 11b are provided in the opening 11a. As described above, the lead 2 of the contact 2 is bent at a substantially right angle in advance, and the lead 21 is press-fitted into the housing 1. And the site | part from the bending part of the lead part 21 to a front-end | tip is penetrated by the notch groove 11b, and it can press-fit, without interrupting | blocking by the opening 11a (refer FIG. 9).

  1 to 3, the connector 10 is provided with an insulating cover 3 that closes the opening 11a. The cover 3 is fitted toward the inside of the housing 1 from the opening 11a.

  As shown in FIG. 2, the cover 3 is provided with a pair of opposing claws 32 protruding from a substantially flat cover body 31. On the other hand, a pair of opposed sawtooth-shaped cuts 16 are formed in the opening 11a (see FIG. 1). When the pair of claws 32 are inserted into the housing 1 through the opening 11 a together with the cover body 31, the pair of claws 32 are elastically deformed inward from each other and then returned to fit into the pair of cuts 16. After the cover 3 is fitted into the opening 11a, the cover 3 is fitted by so-called "fitting kill" which cannot be easily removed.

  1 to 3, a pair of slit pins 4 that engage with the printed circuit board 1p are provided on the plane of the housing 1 from which the lead portion 21 protrudes. The slit pin 4 is a metal plate bent in an L shape, and one bent piece 41 is press-fitted into the pair of grooves 17 (see FIGS. 1 and 2). On the other hand, the other bent piece 42 of the slit pin 4 is formed with a slit. The pair of slit pins 4 protrudes from the flat surface of the housing 1 and serves as locking means that engages with a locking hole (not shown) provided in the printed circuit board 1p.

  Next, the operation of the present invention will be described. The connector 10 includes a housing 1 and a pair of contacts 2, and an opening 11 a provided at one end of the housing 1 is closed by a cover 3. Then, the connector 10 with the cover 3 is mounted on the printed board 1p (see FIG. 9).

  In the connector 10, the contact 2 is accommodated in a four-wall type contact accommodating chamber 11, and the opening 11 a of the contact accommodating chamber 11 is closed with a cover 3. Then, since the lead portion 21 of the contact 2 is covered with the cover 3, it is difficult for the lead portion 21 to come into electrical or physical contact from the outside. Thus, the connector according to the present invention makes it difficult to electrically connect the contact without exposing the contact as in the prior art. The connector according to the present invention makes it difficult to illegally connect to the contacts.

  Further, the connector 10 is provided with a pair of slit pins 4 that engage with the printed circuit board 1p on the plane of the housing 1 from which the lead portion 21 protrudes. The pair of slit pins 4 reinforces the connector 10 so that the connector 10 is not easily detached from the printed circuit board 1p with respect to the mating connector.

  The connector according to the present invention presents a power jack for transmitting power for power as an embodiment. A pair of plate contacts were used as contacts of the power jack. These two plate contacts can be used in a relationship such as positive / negative or positive / ground.

  The connector according to the present invention presents a power jack as an embodiment, but is not limited to this power jack. If the technical idea according to the present invention is applied, it may be applied to, for example, a multipolar receptacle. In addition, the connector by this invention can be used as a side type connector without attaching a cover depending on use environment. That is, the purchaser can select either a connector with a cover or a connector without a cover.

1 is a perspective external view showing an embodiment of a connector according to the present invention. FIG. 2 is a perspective external view of the connector according to the embodiment. FIG. 2 is a perspective external view of the connector according to the embodiment, in which a cover is closed by the connector. It is a top view of the connector by the embodiment. It is a front view of the connector by the embodiment. It is a bottom view of the connector by the embodiment. It is a right view of the connector by the said embodiment. It is a left view of the connector by the said embodiment. It is AA arrow sectional drawing of FIG. 7, and is a state figure in which the cover was attached to the connector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing 1p Printed circuit board 2 Contact 3 Cover 10 Connector 11 Contact accommodating chamber 11a Opening 11p Mounting surface 21 One lead part

Claims (6)

The mating connector is inserted almost parallel to the mounting surface of the printed circuit board, and is mounted on this printed circuit board,
An insulating housing having a contact housing chamber with one end opened, and a plurality of conductive contacts held inside the housing;
The plurality of contacts are bent at substantially right angles with one lead portion extending toward the opening into the contact housing chamber,
This lead part protrudes outside the contact housing chamber and is joined to the printed circuit board.
The connector is provided with an insulating cover that abuts the plane of the housing from which the lead portion protrudes and is in contact with the printed circuit board and closes the opening.   The connector according to claim 1, wherein the plurality of contacts are fixed inside the housing.   The connector according to claim 1, wherein a plurality of cutout grooves are provided in the opening for projecting the one lead portion out of the contact accommodating chamber.   The connector according to claim 1, wherein the cover is fitted from the opening toward the inside of the housing.   The connector according to any one of claims 1 to 4, wherein locking means for engaging with the printed circuit board is provided on a plane of the housing from which the one lead portion protrudes.   The connector according to claim 1, wherein the contacts are a pair of plate contacts.

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