JP2008084561A - Board shield connector connection structure - Google Patents

Abstract

To provide a connection structure for a shield connector for a substrate having a high ground effect and excellent shielding properties.
A shield connector for board 11 having an inner conductor terminal soldered to a signal pattern 44 of a printed board 12 and an outer conductor terminal soldered to a ground pattern 45 of the printed board 12 is fixed to the printed board 12. The fixing member 36 is integrally formed with the connector housing 17 by a resin material that can be plated, and is continuously plated from the fixing member 36 to a portion that contacts the outer conductor terminal of the connector housing 17. The fixing member 36 is electrically connected to the ground pattern 45 and is electrically connected to the outer conductor terminal by inserting the fixing portion 38 of the fixing member 36 into the through hole 48 of the printed circuit board 12 and soldering. It is assumed that the connection structure 10 is made.
[Selection] Figure 1

Description

  TECHNICAL FIELD The present invention relates to a connection structure for a shield connector for a board, and more particularly to a connection structure for a shield connector for a board that is preferably used for connecting a shielded wire to a printed circuit board in an electronic / electric device such as a vehicle such as an automobile. It is.

  2. Description of the Related Art Conventionally, electronic devices such as automobiles and the like have been provided with a printed circuit board on which electronic components, ICs (integrated circuits), and the like are mounted. As a result, shielded wires corresponding to high-frequency signals are connected. A board shield connector is used to relay-connect the shielded electric wire and the printed board.

  As a board | substrate shield connector, what is shown, for example in FIG. 10 etc. is known (patent document 1). As shown in FIG. 10, the board shield connector 70 has an inner conductor terminal 71 formed in a substantially L shape, an outer conductor terminal 72 covering the outer periphery of the inner conductor terminal 71, and an insulating state between the two terminals. And a connector housing 74 for housing them.

  The board shield connector 70 is usually assembled at a predetermined location on the printed board 80. A board assembly tab 75 of the inner conductor terminal 71 protruding from the lower end of the board shield connector 70 is inserted into a through hole 81 provided in the printed circuit board 80 and is electrically connected by a signal pattern 84 on the printed circuit board 80 and solder. Connected. At the same time, the board assembly tab 76 of the outer conductor terminal 72 protruding from the lower end of the board shield connector 70 is inserted into the through hole 82 provided in the printed board 80, and the ground pattern 85 on the printed board 80 and solder are used. Electrically connected.

  At this time, the mounting hole 78 of the mounting portion 77 projecting on both sides of the connector housing 74 and the pin hole 83 of the printed circuit board 80 are aligned, the assembly pin 79 is inserted, and the board shield connector 70 is attached to the printed circuit board 80. Fixed.

JP 2005-209423 A

  However, in the above-described conventional board shield connector connection structure, the connection of the outer conductor terminal 72 to the ground pattern 85 of the printed circuit board 80 is performed via the thin board assembly tab 76. The grounding area of the conductor terminal 72 to the ground pattern 85 is small. Therefore, there is a possibility that the ground effect is low and high shielding properties are hardly exhibited.

  The problem to be solved by the present invention is to provide a connection structure for a shield connector for a substrate, which has a high ground effect and excellent shielding properties.

  In order to solve the above problems, the board shield connector connection structure according to the present invention includes an inner conductor terminal solder-connected to a signal pattern on a printed board, an outer conductor terminal solder-connected to a ground pattern on the printed board, and these A connection structure for connecting a printed circuit board to a printed circuit board shield connector in which a connector terminal composed of a dielectric interposed therebetween is accommodated in a resin connector housing. It has a fixing member for fixing to the substrate, and this fixing member has conductivity, and is characterized in that it is conductively connected to the ground pattern and conductively connected to the outer conductor terminal. is there.

  In this case, the fixing member is formed of a conductive material, and a fixing portion that is conductively connected to the ground pattern and fixed to the printed board, and a connection portion that is conductively connected to the outer conductor terminal. And it is good to have a connecting part which connects these.

  The fixing member is integrally formed with the connector housing by a resin material that can be plated, and is continuously plated from the fixing member to a portion that contacts the outer conductor terminal of the connector housing. It is preferable that the outer conductor terminal is conductively connected to the pattern.

  In these cases, the printed circuit board is formed with a through hole that is connected to the ground pattern and passes through the distal end portion of the fixing member, and the fixing member has a slit-like gap portion that is formed from the proximal end to the distal end. A pair of elastic connection pieces that diverge toward the end, and a locking portion that locks to an opening edge of the through hole is formed bulging at the tip of the pair of elastic connection pieces. The tip portion of the fixing member is elastically deformed when passing through the through hole, and the tip portion of the fixing member is elastically restored when the locking portion passes through the through hole. What is soldered in a state of being locked to the opening edge of the through hole can be shown as a preferable example.

  Further, the printed circuit board is formed with a through hole connected to the ground pattern and inserted through the front end portion of the fixing member, and is engaged with an opening edge of the through hole on both side surfaces of the front end of the fixing member. A stop portion is formed to bulge, and a gap portion is formed between the engaging portions formed on both side surfaces for elastically deforming the distal end portion of the fixing member having the engaging portion. When the stop portion passes through the through hole, the distal end portion of the fixing member is elastically deformed, and when the locking portion passes through the through hole, the distal end portion of the fixing member is elastically restored, and the locking portion Can be shown as a suitable example that is soldered in a state of being engaged with the opening edge of the through hole.

  According to the board shield connector connection structure of the present invention, the board shield connector is fixed to the printed circuit board via the fixing member, and the fixing member is conductively connected to the ground pattern of the printed circuit board by providing conductivity. In addition, since it is conductively connected to the outer conductor terminal, the grounding area of the outer conductor terminal to the ground pattern becomes larger than before, the ground effect is enhanced, and the shielding property is excellent.

  In this case, the fixing member is conductively connected to the ground pattern via a fixing portion formed of a conductive material and fixed to the printed circuit board, and is also conductive to the outer conductor terminal via the connecting portion. What is connected and has a configuration in which the fixed portion and the connecting portion are connected via the connecting portion reliably exhibits the above-described effects.

  Further, the fixing member is integrally formed with the connector housing by a resin material that can be plated, and plating is continuously performed from the fixing member to a portion that contacts the outer conductor terminal of the connector housing, and the ground Those that are conductively connected to the pattern and conductively connected to the outer conductor terminal also reliably exhibit the above-described effects. Furthermore, the board shield connector can be fixed to the printed board without increasing the number of components.

  In these cases, a fixing member having a pair of elastic connection pieces which are formed in the printed circuit board and connected to the ground pattern, and in which a slit-like gap is formed and branches from the base end toward the tip end. When the distal end portion is inserted and the engaging portion bulged and formed at the distal end of each elastic connecting piece passes through the through hole, the distal end portion of the fixing member is elastically deformed by the slit-shaped gap portion, and When the locking part passes through the through hole, the tip of the fixing member is elastically restored, and the locking part is locked to the opening edge of the through hole. It becomes easy to fix.

  And since the said latching | locking part is soldered in the state latched in the opening edge of the said through-hole, the fixed strength to the printed circuit board of the board | substrate shield connector becomes high.

  Similarly, the distal end portion of the fixing member is inserted into a through hole formed in the printed circuit board and connected to the ground pattern, and a locking portion bulging on both side surfaces of the distal end of the fixing member passes through the through hole. Sometimes, the tip portion of the fixing member is elastically deformed by the gap formed between the locking portions, and when the locking portion passes through the through hole, the tip portion of the fixing member is elastically restored, Even if the locking portion is locked to the opening edge of the through hole and soldered in this state, it becomes easy to fix the board shield connector to the printed board, and to the printed board of the board shield connector. The fixing strength of becomes higher.

  Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view illustrating a connection structure of a board shield connector according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view illustrating the board shield connector. 3 and 4 are views for explaining plating applied to the board shield connector. FIG. 5 is a schematic diagram illustrating a process in which the fixing portion is locked in the through hole of the printed board. FIG. 6 is a side view showing the connection structure of the board shield connector according to the first embodiment of the present invention. Hereinafter, the direction in which the mating coaxial connector is fitted will be described as the front side, and the opposite direction will be described as the rear side.

  As shown in FIG. 1, the board shield connector connection structure 10 according to the first embodiment has a board shield connector 11 connected to a printed board 12.

  As shown in FIG. 2, the board shield connector 11 includes an inner conductor terminal 13 soldered to the signal pattern on the printed board, an outer conductor terminal 14 soldered to the ground pattern on the printed board, and these A connector terminal 16 including a dielectric 15 interposed therebetween is configured to be accommodated in a connector housing 17 made of resin. A signal line of a shielded wire (not shown) is connected to the inner conductor terminal 13 so that a high frequency signal is transmitted. The outer conductor terminal 14 is connected to the shielded wire of the shielded wire, and the inner conductor terminal 13 Cover the surroundings and shield electromagnetically.

  The inner conductor terminal 13 is formed in a substantially inverted L shape in which a drooping portion 19 hangs downward from the base end of the pin-shaped horizontal portion 18 by punching a conductive plate material. The proximal end side of the pin-shaped horizontal portion 18 is formed to have a slightly larger diameter than the distal end side thereof, and includes a locking projection 20.

  The hanging portion 19 is inserted into a through-hole electrically connected to the ground pattern of the printed circuit board and connected to a desired signal pattern on the printed circuit board. When the horizontal portion 18 is connected to an inner conductor terminal of a mating shield connector (not shown), an electric signal is transferred between the shielded electric wire and the printed board.

  The dielectric 15 in which the inner conductor terminal 13 is accommodated is formed of a resin insulating material having a predetermined dielectric constant, and is assembled between the inner conductor terminal 13 and the outer conductor terminal 14. Between the two. In the dielectric 15, a storage chamber 22 having a vertically long opening surface 21 is formed inside, and a horizontal cylinder portion 23 is formed to extend in front of the storage chamber 22.

  An insertion hole 24 into which the pin-like horizontal portion 18 of the inner conductor terminal 13 is inserted is formed in the horizontal cylinder portion 23 in the front-rear direction, and the rear side communicates with the storage chamber 22. When the horizontal portion 18 of the inner conductor terminal 13 is inserted into the insertion hole 24, the inner conductor terminal 13 is pressed into the dielectric 15 by being pressed by a locking protrusion 20 bulging and formed on the proximal end side having a slightly larger diameter from the distal end side. Is supposed to be retained.

  The outer conductor terminal 14 is formed in a cylindrical shape by punching a conductive plate material and then bent by a press or the like, and the dielectric 15 can be accommodated in the internal accommodation chamber 25. The front tip portion is a fitting portion 26 to be fitted with the outer conductor terminal of the mating shield connector, and the inner conductor terminal 13 inserted into the insertion hole 24 of the dielectric 15 accommodated in the accommodation chamber 25. The tip of the horizontal portion 18 protrudes from the dielectric 15 and is disposed in the fitting portion 26.

  On the upper surface of the central portion of the outer conductor terminal 14, a locking piece 27 is provided so as to be bent upward and deformable. A bent piece 29 having a size covering the rear opening 28 is formed at the rear end of the upper surface of the outer conductor terminal 14 so as to be accommodated in the accommodation chamber 25 of the outer conductor terminal 14 by being bent downward. The dielectric 15 is covered from the rear and the rear opening 28 is closed to prevent the shield performance of the board shield connector 11 from being deteriorated.

  A pair of left and right connection tabs 30, 30 protrude downward at the lower end of the rear portion of the outer conductor terminal 14 and are inserted through a through hole electrically connected to the ground pattern of the printed circuit board. The

  The connector housing 17 is integrally formed of an insulating resin, and accommodates a connector terminal 16 in which the inner conductor terminal 13 is held inside the dielectric 15 and the dielectric 15 is accommodated in the outer conductor terminal 14. It is designed to be fixed.

  A terminal housing chamber 31 that opens in the front-rear direction is formed through the rear portion of the connector housing 17 so that the outer conductor terminal 14 can be inserted from the rear opening surface 32. A locking projection 33 is formed on the ceiling surface of the terminal accommodating chamber 31 to lock the locking piece 27 of the outer conductor terminal 14 and prevent the outer conductor terminal 14 from coming off.

  In front of the terminal accommodating chamber 31, a hood portion 34 having an open front surface is provided so that the front portion of the mating shield connector can be accommodated. A stopper 35 that is engaged with the connector housing of the mating shield connector projects from the upper edge of the hood portion 34. A fitting portion 26 of the outer conductor terminal 14 protrudes from the terminal accommodating chamber 31 toward the hood portion 34 so that the outer conductor terminal of the mating shield connector accommodated in the hood portion 34 can be fitted. Yes.

  Fixing members 36 for fixing the board shield connector 11 to the printed board are integrally formed on the connector housing 17 on both side surfaces of the connector housing 17. The connector housing 17 and the fixing member 36 are integrally formed of a resin material that can be plated.

  As shown in FIG. 3, the fixing member 36 has a fixing portion 38 projecting from the lower end of a substantially rectangular parallelepiped base portion 37. The fixing portion 38 includes a pair of elastic connection pieces 40 and 40 that are formed with slit-like voids 39 and branch from the proximal end toward the distal end. A locking portion 41 bulges out at the tip of the pair of elastic connecting pieces 40, 40, and can be locked to the opening edge of the through hole that is electrically connected to the ground pattern of the printed circuit board. .

  As shown in FIG. 3, the locking portion 41 includes an insertion slope 41 c extending outward from the most distal end portion 41 a to the outermost end portion 41 b of the inner side surface 40 a of the elastic connection piece 40, and the elastic connection piece from the outermost end portion 41 b. 40 is formed with a locking slope 41d extending inward to the outer side surface 40b of the 40, and bulges outward from the outer side surface 40b of the elastic connecting piece 40. The insertion inclined surface 41c has a gentle slope so that the tip of the fixing portion 38 can be easily inserted into the through hole of the printed circuit board, and the locking inclined surface 41d is the tip of the fixing portion 38 inserted into the through hole of the printed circuit board. The angle is steep so that the hole is locked to the opening edge of the through hole.

  The entire fixing portion 38 has a so-called snap-fit structure in which the pair of elastic connecting pieces 40 and 40 branched by the slit-shaped gap portion 39 can be elastically deformed in the inner direction.

  The fixing member 36 is formed with a through-hole having a substantially square cross section that reaches the side surface of the inner connector housing 17 from the outer surface thereof, and communicates with the through-hole formed from the side surface of the connector housing 17 to the inner side. Yes. That is, the through hole 42 extends from the outer surface of the fixing member 36 to the inside of the connector housing 17, and is continuously connected from the fixing member 36 to the inside of the connector housing 17.

  The fixing member 36 has conductivity by being plated on the surface. As shown in FIG. 3, plating is performed from the tip of the fixing portion 38 to the through hole 42. The entire inner surface of the through hole 42 is also plated, reaches the inside of the hood portion 34 of the connector housing 17 and continues to the rear side. Subsequently, as shown in FIG. 4 (front view), plating is continuously applied up to a portion 43 in contact with the outer conductor terminal 14 on the back wall from which the fitting portion 26 of the outer conductor terminal 14 protrudes.

  Thus, since the plating is continuously applied from the tip of the fixing portion 38 to the portion 43 that contacts the outer conductor terminal 14 of the connector housing 17, the tip of the fixing portion 38 is electrically connected to the ground pattern of the printed circuit board. If the through hole is inserted and connected to the through hole, the fixing member 36 is electrically connected to the ground pattern and electrically connected to the outer conductor terminal 14.

  Examples of the resin material that can be plated constituting the connector housing 17 and the fixing member 36 include Idemitsu Zarek (syndiotactic polystyrene resin composition) and Toray Toyolac (ABS resin).

  Examples of the plating metal applied to the resin material that can be plated in order to impart conductivity to the fixing member 36 and the like include gold plating, nickel plating, and tin plating.

  The plating method is not particularly limited, and any of dry and wet methods can be applied, and wet plating is preferable from the advantage that it can be easily performed. In wet plating, either electrolytic plating or electroless plating may be used. The plating may be applied to the entire fixing member 36 and the entire connector housing 17, or may be partially applied to a part of the fixing member 36 and a part of the connector housing 17. For partial plating, for example, the masking tape, a rubber-like insulator, a polymer resist, or the like may be used by masking a portion not to be plated. Further, a composite material may be formed by multi-layer molding of the above-described resin that can be plated and a general resin used for the connector housing, and plating may be performed on the resin portion that can be plated.

  The board shield connector 11 is connected to the printed board 12 as follows.

  As shown in FIG. 1, the printed circuit board 12 is formed with a signal pattern 44 and a ground pattern 45 being insulated from each other, and through holes 46 and 47 are electrically connected to each other. . Then, the drooping portion 19 of the inner conductor terminal 13 of the board shield connector 11 and the pair of left and right connection tabs 30 and 30 of the outer conductor terminal 14 are respectively inserted into the through holes 46 and 47 of the printed board 12. At the same time, the distal end of the fixing portion 38 of the fixing member 36 integrally formed with the connector housing 17 is inserted into the through hole 48 that is electrically connected to the ground pattern 45.

  Here, the process of inserting the tip of the fixing portion 38 into the through hole 48 will be described with reference to FIG.

  As shown in FIG. 5A, the inner diameter A of the through hole 48 formed in the printed circuit board 12 is substantially the same as or slightly wider than the distance B between the outer side surfaces of the pair of elastic connection pieces 40, 40 of the fixing portion 38. And the distance C between the outermost ends of the locking portion 41 is narrower.

  As shown in FIG. 5B, when the distal end of the fixing portion 38 is inserted into the through hole 48, the insertion slope 41 c is brought into contact with the edge 48 a on the surface side of the through hole 48, so that the distal end of the fixing portion 38 is Is inserted, the edge 48a on the surface side of the through hole 48 slides from the lower side to the upper side of the insertion slope 41c. Along with this, the pair of elastic connection pieces 40, 40 are elastically deformed in the inner direction.

  Next, as shown in FIG. 5C, when the outermost end portion 41 b of the locking portion 41 passes through the through hole 48, the pair of elastic connection pieces 40, 40 are not elastically deformed by a restoring force due to their own elasticity. Return to the state. At this time, the locking slope 41d contacts the edge 48b on the back surface side of the through hole 48 and the locking portion 41 is locked, so that the locking slope 41d is temporarily fixed to the printed circuit board 12 with the lower end surface of the connector housing 17. The This facilitates soldering the tips of the hanging portions 19 of the inner conductor terminals 13, the tips of the connection tabs 30 of the outer conductor terminals 14, and the tips of the fixing portions 38 of the fixing member 36 to the printed circuit board 12.

  Next, as shown in FIG. 6, in the board shield connector 11 temporarily fixed to the printed circuit board 12, the hanging portion 19 of the inner conductor terminal 13 and the pair of left and right connection tabs 30, 30 of the outer conductor terminal 14 are fixed. The tip of the part 38 is soldered to the printed circuit board 12. As a result, the inner conductor terminal 13 is electrically connected to the signal pattern 44 on the printed circuit board 12 via the drooping portion 19, and the outer conductor terminal 14 is connected via the pair of left and right connection tabs 30, 30 and the fixing portion 38. And electrically connected to the ground pattern 45 on the printed circuit board 12.

  As described above, the board shield connector 11 is simply temporarily fixed to the printed circuit board 12 by the fixing portion 38, and the leading end of the drooping portion 19 of the inner conductor terminal 13 and the leading end of the connection tab 30 of the outer conductor terminal 14 are connected to the printed circuit board 12. It is easy to solder. The board shield connector 11 can be fixed to the printed circuit board 12 by soldering the tip of the fixing portion 38 simultaneously with the soldering, so that the board shield connector 11 can be easily fixed to the printed circuit board 12.

  At this time, the locking portion 41 at the distal end of the fixing portion 38 is soldered in a state of being locked to the opening edge 48b of the through hole 48, so that the fixing strength of the distal end of the fixing portion 38 to the printed circuit board 12 is increased. Furthermore, since the gap between the tip end portion of the elastic connection piece 40 inserted through the through hole 48 and the tip end portion of the elastic connection piece 40 is also filled with solder, the fixing strength of the fixing portion 38 tip to the printed circuit board 12 is further increased. ing.

  Next, the connection structure of the board shield connector according to the second embodiment of the present invention will be described. The board shield connector 50 according to the second embodiment is different from the first embodiment in the fixing member for fixing the board shield connector 50 to the printed circuit board and the connection structure between the fixing member and the outer conductor terminal. Since other configurations are the same, the same components are denoted by the same reference numerals, and redundant description is omitted. FIG. 7 is a cross-sectional view illustrating the board shield connector according to the second embodiment, and FIG. 8 is a front view illustrating the board shield connector according to the second embodiment.

  As shown in FIGS. 7 and 8, the fixing member 51 for fixing the board shield connector 50 to the printed circuit board is formed into a predetermined shape by punching a conductive plate and then bending it with a press or the like. , A connection portion 52 that is conductively connected to the outer conductor terminal 14, a fixing portion 54 that is conductively connected to the ground pattern and is fixed to the printed circuit board, and a connecting portion 53 that connects them.

  The connecting portion 52 is formed of a pair of plate pieces that are located on one end side of the plate-like connecting portion 53 and extend in the width direction of the connecting portion 53. The connection portion 52 is connected to the outer conductor terminal 14 so as to cover the outer periphery of the outer conductor terminal 14 at the back of the hood portion 34 of the connector housing 17.

  The connecting portion 53 is bent downward from the connecting portion 52 disposed at the back of the hood portion 34 of the connector housing 17, extends to the tip of the hood portion 34 through the bottom surface of the hood portion 34, and is further turned back at the tip of the hood portion 34. And is accommodated in a kerf 58 provided in a substantially U-shape on the front end side of the bottom wall of the hood portion 34.

  On the other end side of the connecting portion 53, a pair of fixing portions 54, 54 extending in the width direction of the connecting portion 53 is formed to be extended and bent downward at an intermediate position. As in the fixing portion 36 of the board shield connector 11 according to the first embodiment, the fixing portion 54 can be elastically deformed in a pair of elastic connecting pieces 56 and 56 by the slit-shaped gap portion 55 inward. It has a so-called snap-fit structure. And the latching | locking part 57 bulgingly formed at the front-end | tip of a pair of elastic connection piece 56,56 is electrically with the ground pattern of the printed circuit board 12 by the elastic deformation and elastic return of a pair of elastic connection piece 56,56. It can be locked to the opening edge of the through-hole 48 to be connected. Note that the fixing member 51 can be insert-molded into the connector housing 17.

  In the board shield connector 50, the drooping portion 19 is soldered to the through hole 46 and the inner conductor terminal 13 is electrically connected to the signal pattern 44 on the printed board 12 in the same manner as the board shield connector 11 according to the first embodiment. The distal ends of the pair of left and right connection tabs 30 and 30 and the fixing portion 54 are soldered to the through holes 47 and 48 so that the outer conductor terminal 14 is electrically connected to the ground pattern 45 on the printed circuit board 12.

  In the board shield connectors 11 and 50 according to the first embodiment and the second embodiment, the shape of the fixing portions 38 and 54 may be as shown in FIG. 9, for example.

  As shown in FIG. 9, locking portions 60 bulge out on both side surfaces of the front end of the fixing portion 59, and at the opening edge of the through hole 48 that is electrically connected to the ground pattern 45 of the printed circuit board 12. It can be locked.

  The locking portion 60 includes an insertion slope 60 c that extends outward from the most distal end portion 60 a of the fixing portion 59 to both outermost end portions 60 b, and a locking slope that extends inward from both outermost end portions 60 b to both side surfaces of the fixing portion 59. 60d, and bulges outward from both side surfaces of the fixing portion 59.

  The insertion inclined surface 60c has a gentle inclination so that the tip of the fixing portion 59 can be easily inserted into the through hole 48 of the printed circuit board 12, and the locking inclined surface 60d is a fixing inserted into the through hole 48 of the printed circuit board 12. The angle is steep so that the tip of the portion 59 is locked to the opening edge of the through hole 48.

  A gap portion 61 is formed between the locking portions 60 and 60 formed on both side surfaces of the distal end of the fixed portion 59, and the distal end of the fixed portion 59 has a pair of beam portions 62 and 62 sandwiching the gap portion 61. Is formed so as to bulge outward, and when the pair of beam portions 62, 62 are pressed toward the gap portion 61, they are elastically deformed inward.

  The fixing portion 59 is inserted into the through hole 48 electrically connected to the ground pattern 45 of the printed circuit board 12 by elastically deforming and elastically returning the tip, as in the so-called snap fit structure described above. And locked. When the distal end of the fixing portion 59 is soldered, it is electrically connected to the ground pattern 45 on the printed circuit board 12 together with the pair of left and right connection tabs 30 and 30 of the outer conductor terminal 14.

  At this time, the board shield connector is simply temporarily fixed to the printed circuit board 12, and the tip of the hanging portion 19 of the inner conductor terminal 13 and the tip of the connection tab 30 of the outer conductor terminal 14 are easily soldered to the printed board 12. . At the same time as this soldering, the tip of the fixing portion 59 is also soldered so that the board shield connector can be fixed to the printed circuit board 12. Therefore, it becomes easy to fix the board shield connector to the printed circuit board 12.

  Further, since the locking portion 60 at the distal end of the fixing portion 59 is soldered in a state of being locked to the opening edge 48b of the through hole 48, the fixing strength of the distal end of the fixing portion 59 to the printed circuit board 12 is high.

  According to the board shield connector connection structure 10 configured as described above, the board shield connectors 11 and 50 have the fixing members 36 and 51 for fixing to the printed circuit board 12. 51 has conductivity and is conductively connected to the ground pattern 45 of the printed circuit board 12 and is also conductively connected to the outer conductor terminal 14, so that the grounding area of the outer conductor terminal 14 to the ground pattern 45 is larger than the conventional one. Therefore, the ground effect is enhanced and the shielding property is excellent.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

  For example, in the above embodiment, a board shield connector that relay-connects one shielded electric wire and a printed board is shown, but it goes without saying that it may have a multipolar inner conductor terminal and an outer conductor terminal.

  The connection structure of the shield connector for a board according to the present invention is suitably used for connecting a shielded wire to a printed circuit board in an electronic / electric device such as a vehicle such as an automobile.

It is a perspective view showing the connection structure of the shield connector for substrates concerning a first embodiment of the present invention. It is sectional drawing showing the shield connector for boards. It is a side view explaining the plating performed to the board | substrate shield connector. It is a front view explaining the plating given to the shield connector for substrates. It is a schematic diagram which shows the process in which a fixing | fixed part latches in the through-hole of a printed circuit board. It is a side view showing the connection structure of the shield connector for substrates concerning a first embodiment of the present invention. It is sectional drawing showing the shield connector for boards which concerns on 2nd embodiment of this invention. It is a front view showing the shield connector for substrates concerning a second embodiment of the present invention. It is a schematic diagram showing the shape of another fixing | fixed part. It is a perspective view showing the connection structure of the conventional shield connector for substrates.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Board shield connector connection structure 11 Board shield connector 12 Printed board 13 Inner conductor terminal 14 Outer conductor terminal 15 Dielectric 16 Connector terminal 17 Connector housing 36 Fixing member 38 Fixing part 44 Signal pattern 45 Ground patterns 46, 47, 48 Through hole

Claims (5)

A connector housing comprising a resin-made connector terminal composed of an inner conductor terminal soldered to a signal pattern on the printed circuit board, an outer conductor terminal soldered to the ground pattern of the printed circuit board, and a dielectric interposed therebetween Is a connection structure to the printed board of the shield connector for the board accommodated in the board,
The board shield connector has a fixing member for fixing to the printed circuit board, and the fixing member has conductivity and is conductively connected to the ground pattern and conductively connected to the outer conductor terminal. A connection structure of a shield connector for a board, characterized in that   The fixing member is formed of a conductive material, and a fixed portion that is conductively connected to the ground pattern and fixed to the printed circuit board, a connection portion that is conductively connected to the outer conductor terminal, and these The connecting structure for a board shield connector according to claim 1, further comprising a connecting portion for connecting the two.   The fixing member is integrally formed with the connector housing by a resin material that can be plated, and is continuously plated from the fixing member to a portion in contact with the outer conductor terminal of the connector housing to form the ground pattern. 2. The connection structure for a shield connector for a board according to claim 1, wherein the connection structure is conductively connected and is electrically connected to the outer conductor terminal.   The printed circuit board is formed with a through hole that is connected to the ground pattern and passes through the distal end portion of the fixing member, and the fixing member is formed with a slit-shaped gap and branches from the proximal end toward the distal end. A pair of elastic connection pieces is provided, and a locking portion for locking to the opening edge of the through hole is formed bulging at the tip of the pair of elastic connection pieces. The distal end portion of the fixing member is elastically deformed when passing, and the distal end portion of the fixing member is elastically restored when the locking portion passes through the through hole, so that the locking portion is an opening edge of the through hole. 4. The connection structure for a shield connector for a board according to claim 2, wherein the connection structure is soldered in a state of being locked to the board.   The printed circuit board is formed with through holes that are connected to the ground pattern and pass through the front end portion of the fixing member. Locking portions that are engaged with the opening edges of the through holes are formed on both side surfaces of the front end of the fixing member. And a gap for elastically deforming the distal end portion of the fixing member having the engaging portion is formed between the engaging portions formed on the both side surfaces. The tip portion of the fixing member is elastically deformed when passing through the through hole, and the tip portion of the fixing member is elastically restored when the locking portion passes through the through hole. 4. The connection structure for a shield connector for a board according to claim 2, wherein the connection structure is soldered in a state of being locked to an opening edge of the through hole.

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