JP2012142164A - Card edge connector unit having cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a card edge connector unit which enables connectors to be fixed to a substrate and prevents contaminants from adhering to a surface of the substrate.SOLUTION: A card edge connector unit 100 comprises: a substrate 130 having multiple conductive pads at end parts; a first connector 110 connected with one end of the substrate 130; a second connector 120 connected with the other end of the substrate 130; and covers 140 and 150 enclosing the substrate 130. The covers 140 and 150 respectively include cover fixation parts for fixing the first connector 110 and the second connector 120. The first connector 110 and the second connector 120 respectively include connector fixation parts 114, 115, 124, and 125 for being fixed to the cover fixing part.

Description

  The present invention relates to a card edge connector unit having a cover.

  Conventionally, a card edge connector board is configured by disposing a conductive pad on one end of a circuit board such as a printed circuit board, and one end of this board is inserted into the connector so that the conductive pad and the connector are inserted into the connector. Electrical connection with the provided contacts and fixation between the board and the connector are performed.

  If the board and the connector are not firmly fixed, the board will move, resulting in poor contact between the conductive pad and the contact. In order to solve this, a device such as a metal lock spring mechanism or a latch mechanism is provided on the connector (Patent Documents 1 and 2).

  For example, Patent Document 1 includes an insulating housing attached to a parent board, and a latch member attached to the housing and holding the child board, and the latch member is formed at an edge of the child board. There is described a card edge connector having a child board retaining portion that prevents the child board from coming off in the horizontal direction by engaging with the inner wall of the semicircular recess.

  Since these metal lock spring mechanisms and latch mechanisms are used by being attached to a connector, there has been a problem that the mounting process is required or an extra space for the mechanism is required.

  On the other hand, when contaminants such as dust and toner, especially conductive contaminants, adhere to the surface of the substrate, there is a problem that the operation becomes unstable.

JP 2002-190354 A JP 2009-129710 A

  The present invention has been made to solve the above-mentioned problems, and the connector and the board are more firmly fixed, and the adhesion of contaminants to the surface of the board is prevented. Furthermore, since other parts (particularly conductive parts) do not come into contact with the substrate surface by the cover, they can be arranged without choosing the arrangement location.

  According to one aspect of the present invention, a card edge connector unit is provided. The card edge connector unit includes a board on which a plurality of conductive pads are arranged at an end, a first connector connected to one end of the board, a second connector connected to the other end of the board, And a cover surrounding the substrate. The cover includes a cover fixing portion for fixing the first connector and the second connector, and the first connector and the second connector include a connector fixing portion for fixing to the cover fixing portion.

  ADVANTAGE OF THE INVENTION According to this invention, the contact reliability of the contact in a connector and the conductive pad of a board | substrate can be improved, and adhesion of the contaminant to the surface of a board | substrate can be prevented. Furthermore, in the card edge connector unit of the present invention, the cover does not contact other conductive parts on the surface of the substrate, so it can be placed regardless of the place of placement. For example, a double-sided tape or an adhesive layer is placed on the cover. By applying, it can be easily fixedly arranged at a desired position.

It is the schematic perspective view which looked at the exploded view of the card edge connector unit which concerns on one Embodiment of this invention from diagonally upward. It is the schematic perspective view which looked at the card edge connector unit which concerns on one Embodiment of this invention from diagonally upward. It is the schematic perspective view which looked at the exploded view of the card edge connector unit which concerns on another embodiment of this invention from diagonally upward. It is the schematic perspective view which looked at the card edge connector unit which concerns on another embodiment of this invention from diagonally upward. It is the schematic perspective view which looked at the exploded view of the card edge connector unit which concerns on another embodiment of this invention from diagonally upward. It is the schematic perspective view which looked at the card edge connector unit which concerns on another embodiment of this invention from diagonally upward. It is the schematic perspective view which looked at the exploded view of the card edge connector unit which concerns on another embodiment of this invention from diagonally upward. It is the schematic perspective view which looked at the card edge connector unit which concerns on another embodiment of this invention from diagonally upward. It is the schematic of one example of use of the card edge connector unit of this invention. It is the schematic of one example of use of the card edge connector unit of this invention.

  Hereinafter, a card edge connector unit according to an embodiment of the present invention will be described with reference to the drawings. This unit can be used in office automation equipment such as printers and fax machines, electronic equipment such as vending machines and medical instruments, and networks such as sensor networks and home security networks. Further, it may be used as a slave unit when the internal wiring of the electronic device or the network wiring is converted into a serial bus.

  This card edge connector unit is equipped with a cover that surrounds the board, so that it is possible to prevent adhesion of dirt to the board, and at the same time, this cover and the connector connected to the board are fixed to make it like an exoskeleton. The board is protected, and the contact reliability between the contact in the connector and the conductive pad of the board is also improved. Furthermore, since the substrate surface is protected by the cover, other conductive components existing inside or around the network of the electronic apparatus do not come into contact with the substrate, and these conductive components can be arranged without worrying about them.

  A card edge connector unit 100 according to an embodiment of the present invention shown in FIG. 1 includes a first connector 110, a second connector 120, a substrate 130, a cover upper part 140, and a cover lower part 150.

  The first connector 110 and the second connector 120 are fitted to the connection partner board 130. These connectors include conductive contacts 111 and 121 (not shown) and housings 112 and 122 that hold them, and the conductive contacts are electrically connected to cables 113 and 123.

  The housing of the connector includes connector fixing portions 114, 115, 124, and 125. In FIG. 1, a recess provided in the housing is the connector fixing portion. In addition to the concave shape, the connector fixing portion may have other shapes such as a convex shape that can fix the connector housing and the cover.

  The substrate 130 has a plurality of conductive pads 131 and 132 disposed thereon. In addition, an integrated circuit, a resistor, an electrolytic capacitor, and the like can be disposed on the substrate. If the card edge connector unit is used as a slave unit, a slave integrated circuit and an address setting unit are mounted.

  One end 137 of the board is fitted to the first connector 110 and the other end 138 is fitted to the second connector 120. The conductive pads 131 and 132 of the board are electrically connected to the conductive contacts of the corresponding connectors. By arranging the contacts so as to press against the substrate, the conductive pads and the contacts are electrically connected, but in this state, the fixing is not sufficient. In FIG. 1, one end and the other end are arranged in the longitudinal direction (180 degree direction) of the substrate, but they may be arranged in the 90 degree direction as shown in FIGS. Further, as shown in FIGS. 5 and 6, the other end may be arranged in each of the 90-degree direction and the 180-degree direction.

  Next, the cover will be described. In FIG. 1, the cover surrounding the substrate includes two separable cover parts (cover upper part 140 and cover lower part 150), but the cover may be integrally molded. The cover upper part 140 has fitting convex parts 141 and 142 and is fitted with the fitting concave parts 153 and 154 of the cover lower part 150 to form a cover. Similarly, the cover lower part 150 also has fitting convex parts 151 and 152 and is fitted with fitting concave parts 143 and 144 (not shown) of the cover upper part 140.

  When fitting the fitting concave portion and the fitting convex portion, by fitting them from above and below along the fixing portions 114, 115, 124, 125 of the first connector and the second connector, as shown in FIG. Cover fixing portions 201, 202, 203, 204 of the cover 200 are fixed to the connector fixing portions 114, 115, 124, 125 of the first and second connectors. Since the cover and the first and second connectors are fixed in this manner, the fitting between the board and the first and second connectors is stable, and between the contact of each connector and the conductive pad of the board. Higher contact reliability can be obtained.

  In addition, the cover upper part 140 and the cover lower part 150 can also reduce the number of parts by making it the same shape.

  Cover materials include polyacetal, polyamide, polycarbonate, modified polyphenylene ether, polybutylene terephthalate, polyethylene terephthalate, ultra high molecular weight polyethylene, syndiotactic polystyrene, amorphous polyarylate, polysulfone, polyethersulfone, polyphenylene sulfide, poly Various resins such as ether ether ketone, polyimide, polyether imide, fluororesin, and liquid crystal polymer can be used, but polycarbonate may be used from the viewpoint of processability and strength. In addition, a transparent material (including a colored transparent material such as milky white transparent material) may be used so that the substrate can be seen from the outside of the cover.

  The card edge connector units 300 and 400 according to another embodiment of the present invention shown in FIGS. 3 and 4 are similar to those shown in FIGS. The configuration is almost the same as that of the card edge connector unit shown in FIG. The fitting convex portions 341, 342, 343, 344 (not shown) of the cover 340 are connected to the fitting concave portion of the cover lower portion 350 and the fixing portions 314, 315, 324, 325 of the first connector and the second connector. As shown in FIG. 4, the cover fixing portions 401, 402, 403, 404 of the cover are fixed to the connector fixing portions 314, 315, 324, 325 of the first and second connectors. Is done.

  The card edge connector units 500 and 600 according to another embodiment of the present invention shown in FIGS. 5 and 6 include one end 537 of the substrate 530, the other end 538 in the 180-degree direction, and another other end in the 90-degree direction. The configuration is almost the same as that of the card edge connector unit shown in FIGS.

  The card edge connector units 700 and 800 according to another embodiment of the present invention shown in FIGS. 7 and 8 are the card edge connector units shown in FIGS. 1 and 2 except that the shapes of the cover upper part 740 and the cover lower part 750 are changed. And substantially the same configuration.

  FIG. 9 shows an example in which the card edge connector unit of the present invention is used as a slave unit when an electronic device or a network wiring is converted into a serial bus. At this time, the substrate of the slave unit includes an address setting unit and a slave integrated circuit.

  The board 930 of the slave unit 900 connected via the cable (serial bus) 913 from the control circuit unit 960 that sequentially outputs a plurality of data signals to the slave circuit board 960 receives the data signal corresponding to the slave unit board from the control circuit unit 960. When received, the data signal is fetched. The slave integrated circuit determines from the address setting unit whether or not the address of the received data signal corresponds to its own address. Various elements such as a motor and a sensor are connected to the end 970 of the slave unit, and each element operates based on a data signal from the control circuit unit 960 received via the slave unit.

  Although only two slave units are shown in FIG. 9, a plurality of slave units are required when used in electronic equipment or in network wiring, and the cover of the present invention is provided on each or a part thereof. A card edge connector unit having the same can be used.

  FIG. 10 shows a state before the card edge connector unit 1000 of the present invention is attached to the component 1200 inside the electronic device via the double-sided tape 1100. This double-sided tape can be replaced with a material having a function of bonding surfaces together such as an adhesive layer and a hook-and-loop fastener.

  As described above, those skilled in the art can make various modifications in accordance with the embodiment to be implemented within the scope of the present invention.

100, 200, 300, 400, 500, 600, 700, 800, 900 Card edge connector unit 110 First connector 120, 320, 520, 560 Second connector
130, 330, 530, 930 Substrate 140, 340, 740 Cover upper part 150, 350, 750 Cover lower part 201, 202, 203, 204, 401, 402, 403, 404 Cover fixing part 114, 115, 124, 125, 314 315, 324, 325 Connector fixing part

Claims (6)

A substrate having a plurality of conductive pads disposed at an end thereof, a first connector connected to one end of the substrate, a second connector connected to the other end of the substrate, and a cover surrounding the substrate A card edge connector unit comprising:
The cover includes a cover fixing portion for fixing the first connector and a cover fixing portion for fixing the second connector;
The first connector and the second connector include a connector fixing portion for fixing to the cover fixing portion,
Card edge connector unit.   The cover fixing portion is a convex portion, the connector fixing portion is a concave portion, and the cover, the first connector, and the second connector are fixed by fitting the concave portion and the convex portion. The card edge connector unit according to 1.   The card edge connector unit according to claim 1, wherein the cover includes two separable cover portions.   The card edge connector unit according to any one of claims 1 to 3, wherein the substrate includes a slave integrated circuit and an address setting unit.   The card edge connector unit according to any one of claims 1 to 4, wherein the substrate includes one end and the other end arranged in a 180-degree direction. The card edge connector unit according to any one of claims 1 to 4, wherein the substrate includes one end and the other end arranged in a 90-degree direction.