JP4519724B2 - Connector fixing structure - Google Patents

Description

  The present invention relates to a connector fixing structure for fixing a connector to a board.

  In a conventional connector fixing structure for fixing a connector to a substrate, generally, a fixing bracket 1 formed by bending a band-shaped metal plate as shown in FIG. 8 into a substantially L shape is used. The fixing bracket 1 includes a connector mounting piece 3 to be mounted on the connector 2 and a board joining piece 5 provided on the board 4 so as to be connected to one end edge of the connector mounting piece 3 horizontally. And the board | substrate joining piece 5 is soldered to the land provided in the board | substrate 4, and the connector 2 is fixed to the board | substrate 4 (for example, refer patent document 1).

JP-A-8-130055

  By the way, in recent years, the mounting space on the substrate 4 tends to be reduced due to the downsizing of electronic devices and the like, and the fixture 1 for fixing the connector 2 to the substrate 4 is also required to be downsized. However, along with the downsizing of the fixing metal 1, there is a possibility that the bonding strength between the fixing metal 1 and the board 4 is lowered and the fixing strength of the connector 2 to the board 4 is lowered.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to improve the bonding strength between the fixing bracket and the substrate, thereby securing the fixing strength of the connector to the substrate sufficiently. To provide a structure.

  In order to achieve the above object, the connector fixing structure according to the present invention is characterized by the following points.

A connector fixing structure for fixing a connector to a board, wherein the connector mounting piece is attached to the connector, and is soldered to a land provided on the board so as to be connected to the connector mounting piece horizontally with the board. Board fixing piece, and the fixing fitting extends from the connector mounting piece in a direction substantially perpendicular to the connector mounting piece , with a slight gap between the board connecting piece and the edge of the board connecting piece. And a small piece arranged in an upright state on the substrate, and the small piece is soldered to the land integrally with the substrate bonding piece. In addition, a plurality of the small pieces are extended from the connector mounting piece and arranged at intervals.

  According to the connector fixing structure described above, a small piece placed in a state standing on the board with a slight gap between the edges of the board joining piece is soldered to the land integrally with the board joining piece. The solder infiltrates into the gap between the edge of the board joining piece and the small piece and wets and spreads the small piece so that a solder fillet is formed with a sufficient height from the board. Compared to the case where a small piece is not formed, the joint area between the solder and the fixing bracket is increased by the amount of the fillet, so that the bonding strength between the solder and the fixing bracket is improved. The bonding strength between the fixing bracket and the substrate can be improved.

  In the connector fixing structure described above, preferably, a part of the board bonding piece is cut out, and the small piece is in the cutout part with a slight gap between the inner edge of the cutout part of the board bonding piece. Be placed. According to this, even if a small piece is provided, the occupation area of the fixing bracket on the substrate does not increase.

  According to the connector fixing structure according to the present invention, it is possible to improve the bonding strength between the fixing metal fitting and the substrate, thereby sufficiently securing the fixing strength of the connector to the substrate.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a preferred embodiment of a connector fixing structure according to the invention will be described in detail with reference to the drawings.

  1 is a perspective view of a first embodiment of a connector fixing structure of the present invention, FIG. 2 is a perspective view of a fixing bracket, FIG. 3 is a perspective view showing mounting of the fixing bracket to a land, and FIG. IV sectional view, FIG. 5 is a perspective view of a fixture according to the second embodiment of the connector fixing structure of the present invention, FIG. 6 is a perspective view of the fixture according to the third embodiment of the connector fixing structure of the present invention, FIG. 7 is a perspective view of a fixture according to a fourth embodiment of the connector fixing structure of the present invention.

(First embodiment)
As shown in FIG. 1, the connector fixing structure of the present embodiment includes a set of fixing fittings 12 for fixing the connector 11 to the substrate 10.

  The connector 11 includes a plurality of connection terminals 13 and a housing 14 that holds the connection terminals 13 in a state of being aligned in parallel with the upper surface of the substrate 10. The housing 14 is provided with a generally rectangular tube-shaped hood 15 that is provided at the tip of each of the plurality of connection terminals 13 and that surrounds a contact portion that is electrically connected to the connection terminal of the other connector. ing. Then, connector mounting pieces 16 of the fixing bracket 12 to be described later are respectively mounted on both outer side surfaces of the hood 15 disposed substantially perpendicular to the upper surface of the substrate 10.

  As shown in FIG. 2, the fixing bracket 12 is formed of a single metal plate as a whole, is disposed substantially perpendicular to the upper surface of the substrate 10, and is a connector attached to the outer surface of the hood 15 of the connector 11. A mounting piece 16 and a board joining piece 17 provided on the lower end edge of the connector mounting piece 16 horizontally with the upper surface of the board 10 are provided.

  Projecting pieces 18 are provided on both side edges of the upper end portion of the connector mounting piece 16. On the other hand, a pair of ribs 19, 19 extending vertically are formed on the outer surface of the hood 15 of the connector 11 to which the connector mounting piece 16 is mounted. Engagement grooves 20 into which the protruding pieces 18 of the mounting piece 16 can be inserted from above are formed. The connector mounting piece 16 is mounted on the outer surface of the hood 15 by entering from above between a pair of ribs 19 and 19 and accommodating the protruding pieces 18 in the engaging grooves 20 of the ribs 19 respectively. Yes.

  The fixing metal 12 further includes small pieces 21 and 21 that are arranged so as to stand vertically on the upper surface of the substrate 10. Each small piece 21 is formed by bending a small piece extending on the side edge of the connector joining piece 16 at a substantially right angle so as to follow the side edge of the board joining piece 17. A slight gap g is provided between the lower edge of each small piece 21 and the side edge of the substrate bonding piece 17.

  As shown in FIGS. 3 and 4, the board bonding piece 17 and the small pieces 21 and 21 are integrally soldered to a land 23 provided on the upper surface of the board 10. An appropriate amount of solder is preliminarily deposited on the lands 23, and the substrate bonding pieces 17 and the small pieces 21, 21 are appropriately heated and cooled while the substrate bonding pieces 17 and the small pieces 21 and 21 are placed on the lands 23. 21 is soldered to the land 23.

  The land 23 is formed to be slightly larger than the outer shape including the board joining piece 17 and the small pieces 21, 21, and the melted solder draws a skirt from the outermost peripheral edges of the board joining piece 17 and the small pieces 21, 21 and fillets 25 is formed.

  Further, the melted solder infiltrates into the gap g between the side edge of the board bonding piece 17 and the lower end edge of the small piece 21. The small piece 21 is formed to be higher than the height (thickness) of the side edge of the board bonding piece 17, and the solder that has infiltrated into the gap g extends further upward from the side edge of the board bonding piece 17. A fillet 26 is formed so as to wet and spread up the side surface 21a. Compared to the case where the small piece 21 is not formed, the bonding area between the solder and the fixing bracket 12 is increased by the amount of the fillet 26, so that the bonding strength between the solder and the fixing bracket 12 is improved, so that the solder is removed. The bonding strength between the fixing metal 12 and the substrate 10 is improved.

  As described above, according to the connector fixing structure of the present embodiment, the small pieces 21, 21 arranged in a state where the substrate joining piece 17 is erected on the board 10 with a slight gap g between the both side edges of the board joining piece 17 are arranged on the board. By soldering to the land 23 integrally with the joining piece 17, the solder penetrates into the gaps g between the both side edges of the board joining piece 17 and the small pieces 21, 21, so that the small pieces 21, 21 are scooped up. The fillet 26 spreads and is formed with a sufficient height from the substrate 10. Compared to the case where the small piece 21 is not formed, the bonding area between the solder and the fixing bracket 12 is increased by the amount of the fillet 26. Therefore, the bonding strength between the solder and the fixing bracket 12 is improved, and consequently the solder. The bonding strength between the fixing metal 12 and the substrate 10 can be improved.

  Here, the small piece 21 has a thin plate shape, and the gap g between the lower edge of the small piece 21 and the side edge of the substrate bonding piece 17 is also very small. Therefore, the area occupied by the substrate bonding piece 17 on the substrate 10 is small. That is, the area occupied by the fixing bracket 12 is substantially the same as that when the small piece 21 is not formed.

(Second Embodiment)
Next, a second embodiment of the connector fixing structure of the present invention will be described with reference to FIG. Note that the connector fixing structure of the present embodiment is different from the connector fixing structure of the first embodiment described above only in the shape of the fixing bracket, and the description of the other members is omitted because it is common to other members. The description of the fixing bracket is simplified by attaching the same reference numerals to the portions common to the fixing bracket 12 of the first embodiment.

  As shown in FIG. 5, the fixing metal fitting 112 used in the connector fixing structure of this embodiment is disposed substantially perpendicular to the upper surface of the substrate 10 and is attached to the outer surface of the hood 15 of the connector 11. And a board joining piece 117 connected to the lower end edge of the connector mounting piece 116 horizontally with the upper surface of the board 10.

  The fixing metal 112 further has small pieces 121 and 121 arranged in a state of standing upright on the upper surface of the substrate 10. Each small piece 121 is formed by bending a small piece extending on the side edge of the connector bonding piece 116 so as to be along the side edge of the board bonding piece 117, and further bending the tip portion so as to be along the front edge of the board bonding piece 117. Is formed. A slight gap g is provided between the lower end edge of each small piece 121 and the side edge and front end edge of the substrate bonding piece 117.

  The board bonding piece 117 and the small pieces 121 and 121 are integrally soldered to the land 23 provided on the upper surface of the board 10. The molten solder infiltrates into the gap g between the side edge and front end edge of the board bonding piece 117 and the lower end edge of each small piece 121. Each small piece 121 is formed higher than the thickness of the board bonding piece 117, and the solder that has infiltrated the gap g extends the inner surface of each small piece 121 further upward from the side edge and the front edge of the board bonding piece 117. Wet and spread so as to crawl up and form a fillet.

  According to the present embodiment, as compared with the fixture 12 of the first embodiment described above, the solder and the solder formed by the amount of the fillet formed between the front end edge of the board joining piece 117 and the inner side surface of the tip portion of each small piece 121. The bonding area between the fixing metal 112 and the fixing metal 112 is increased. Therefore, the bonding strength between the solder and the fixing metal 112 is further improved, and as a result, the bonding strength between the fixing metal 112 and the substrate 10 via the solder is further improved. Can do.

(Third embodiment)
Next, a third embodiment of the connector fixing structure of the present invention will be described with reference to FIG. Note that the connector fixing structure of the present embodiment is different from the connector fixing structure of the first embodiment described above only in the shape of the fixing bracket, and the description of the other members is omitted because it is common to other members. The description of the fixing bracket is simplified by attaching the same reference numerals to the portions common to the fixing bracket 12 of the first embodiment.

  As shown in FIG. 6, the fixing fitting 212 used in the connector fixing structure of the present embodiment is disposed substantially perpendicular to the upper surface of the substrate 10 and is attached to the outer surface of the hood 15 of the connector 11. And a board joining piece 217 provided on the upper surface of the board 10 so as to be parallel to the lower end edge of the connector mounting piece 216. The board bonding piece 217 has a substantially rectangular shape extending from the connecting portion with the connector mounting piece 216 toward the front edge at the center in the width direction of the board bonding piece 217 and penetrating the board bonding piece 217 in the thickness direction. A notch 227 is formed in the notch.

  The fixing fitting 212 further has a small piece 221 that is arranged in a state of standing upright on the upper surface of the substrate 10. The small piece 221 is connected in a state where one side edge is connected to the connector mounting piece 216 by a substantially L-shaped slit 228 cut into the connector mounting piece 216 continuously to the notch 227 of the board bonding piece 217. It is a small piece separated from the connector mounting piece 216, and is formed by bending the side edge connected to the connector mounting piece 216 and raising it to the board bonding piece 227 side. The lower end edge of the small piece 221 is disposed in the cutout portion 227 of the board bonding piece 217, and a slight gap g is provided between the lower end edge of the small piece 221 and the inner edge of the cutout portion 227 of the board bonding piece 217. ing.

  The board bonding piece 217 and the small piece 221 are integrally soldered to the land 23 provided on the upper surface of the board 10. The melted solder infiltrates into the gap g between the inner edge of the notch 227 of the board bonding piece 217 and the lower edge of the small piece 221. The small piece 221 is formed to be higher than the thickness of the board bonding piece 217, and the solder that has infiltrated into the gap g scoops up the side surface of the small piece 221 from the inner edge of the notch 227 of the board bonding piece 217 further upward. So as to form a wetting spread fillet.

  According to the present embodiment, the point that the height of the solder fillet is secured by the small pieces 221 arranged in an upright state on the substrate 10 to improve the bonding strength between the solder and the fixture 212 is the first embodiment described above. However, by disposing the small piece 221 in the notch 227 of the substrate bonding piece 217, it is possible to avoid an increase in the area occupied by the substrate bonding piece 217 on the substrate 10, that is, the area occupied by the fixing bracket 212. Can do.

(Fourth embodiment)
Next, a fourth embodiment of the connector fixing structure of the present invention will be described with reference to FIG. The connector fixing structure of the present embodiment is different from the connector fixing structure of the third embodiment described above only in the shape of the fixing bracket. The other members are the same, and the description thereof is omitted. The description of the fixing bracket will be simplified by giving the same reference numerals to the portions common to the fixing bracket 212 of the third embodiment.

  As shown in FIG. 7, the fixing fitting 312 used in the connector fixing structure of the present embodiment is disposed substantially perpendicular to the upper surface of the substrate 10 and is attached to the outer surface of the hood 15 of the connector 11. And a board joining piece 317 provided on the lower surface of the connector mounting piece 316 horizontally with the upper surface of the board 10. A cutout portion 327 that is cut out in a substantially rectangular shape so as to penetrate the substrate bonding piece 317 in the thickness direction is provided at the center of the substrate bonding piece 317.

  The fixing metal fitting 312 is folded back so that the small pieces respectively extending on both side edges of the connector joining piece 316 join each other at the center in the width direction of the connector joining piece 316, and the front ends thereof are the front end edges of the board joining piece 317. It has the small pieces 321 and 321 formed by bending so that it may face. A drooping portion 321 b that extends into the cutout portion 327 of the substrate bonding piece 317 and is erected perpendicularly to the upper surface of the substrate 10 is extended from the distal end portion of each small piece 321. A slight gap g is provided between the lower end edge of the hanging part 321 b of each small piece 321 and the inner edge of the notch 327 of the substrate bonding piece 317. In addition, a slight gap G is also provided between both hanging parts 321b and 321b.

  The substrate bonding piece 317 and the small pieces 321 and 321 are integrally soldered to the land 23 provided on the upper surface of the substrate 10. The melted solder infiltrates a gap g between the inner edge of the notch 327 of the board bonding piece 317 and the lower edge of the hanging part 321b of each small piece 321. Each small piece 321 is formed to be higher than the thickness of the board bonding piece 317, and the solder infiltrated into the gap g is further lowered upward from the inner edge of the notch 327 of the board bonding piece 317 toward the upper part 321b of the small piece 321. A wet fillet is formed so as to crawl up the sides of the film. Further, the melted solder infiltrates into the gap G between the two hanging parts 321b and 321b, and forms a wet fillet so as to scoop up the side surfaces of both hanging parts 321b and 321b.

  According to the present embodiment, the hanging portion 321b of the small piece 321 for securing the height of the solder fillet is disposed in the notch 327 of the board joining piece 317, and the occupied area of the fixing bracket 312 on the board 10 is increased. Is the same as in the third embodiment described above, but the hanging portions 321b of the plurality of small pieces 321 are arranged in the notches 327 so as to fill the notches 327 of the substrate bonding pieces 317, and the plurality A large number of fillets can be formed between the drooping portion 321b of the small piece 321 and the inner edge of the cutout portion 327, and between the plurality of drooping portions 321b, so that the bonding area between the solder and the fixture 312 can be increased. As a result, the bonding strength between the solder and the fixing metal 312 can be further improved, and as a result, the bonding strength between the fixing metal 312 and the substrate 10 via the solder can be further improved.

  In addition, this invention is not limited to embodiment mentioned above, In the range which does not deviate from the summary of this invention, it can change suitably.

It is a perspective view of 1st Embodiment of the connector fixing structure of this invention. (A) and (B) are the perspective views of the fixing bracket seen from a mutually different angle. It is a perspective view which shows mounting to the land of a fixing metal fitting. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 3. It is related with 2nd Embodiment of the connector fixing structure of this invention, (A), (B) is a perspective view of the fixing metal fitting seen from a mutually different angle. It is related with 3rd Embodiment of the connector fixing structure of this invention, (A), (B) is a perspective view of the fixing metal fitting seen from a mutually different angle. It is related with 4th Embodiment of the connector fixing structure of this invention, (A), (B) is a perspective view of the fixing bracket seen from a mutually different angle. It is a perspective view which shows the conventional connector fixing structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Board | substrate 11 Connector 12 Fixing bracket 16 Connector mounting piece 17 Board | substrate joining piece 21 Small piece 23 Land g Crevice

Claims (3)

A connector fixing structure for fixing a connector to a board,
A mounting bracket having a connector mounting piece mounted on the connector, and a board joining piece soldered to a land provided on the board connected to the connector mounting piece horizontally with the board;
A small piece in which the fixing bracket extends from the connector mounting piece in a direction substantially orthogonal to the connector mounting piece , with a slight gap between the fixing piece and the edge of the board joining piece, and standing on the board. Further comprising
The connector fixing structure, wherein the small piece is soldered to the land integrally with the board joining piece. A part of the substrate bonding piece is cut away,
2. The connector fixing structure according to claim 1, wherein the small piece is disposed in the notch with a slight gap between the small piece and an inner edge of the notch of the board bonding piece. 3. The connector fixing structure according to claim 1, wherein a plurality of the small pieces are extended from the connector mounting piece and are spaced from each other . 4.

Images