JP2011216413A - Printed circuit board with board terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printed circuit board with a board terminal with a new structure which can attain compactness in size and can reduce manufacturing cost in a simpler structure.SOLUTION: In the printed circuit board with a board terminal, a connection part 24 of the board terminal 22 is projected outward from an outer peripheral edge 48 of the printed circuit board 20 by overlapping the board terminal 22 on an outer peripheral part 40 of the printed circuit board 20. A pair of legs 30, 30 are integrally formed on a base end side of the board terminal 22 by bending them, and the legs 30, 30 are soldered by inserting them into through-holes 42a, 42b. Further, a fixed projection 36 located between the legs 30, 30 at a connection part 24 side and projecting in the same direction with the legs 30, 30 is press-fitted to and fixed on a press-fitting hole 44 of the printed circuit board 20.

Description

  The present invention relates to a printed circuit board with a substrate terminal provided with a substrate terminal to be connected to an external electric component, and more particularly to a printed circuit board with a substrate terminal in which the substrate terminal protrudes laterally.

  Conventionally, as an internal circuit of an electrical junction box such as a junction box mounted on an automobile, a printed circuit board with a board terminal provided with a board terminal to be connected to an external electrical component such as a fuse or a connector has been used. . Such a printed circuit board with terminal for a substrate is described in, for example, Japanese Patent Application Laid-Open No. 2009-153319 (Patent Document 1), in addition to a circuit board terminal which is provided by being orthogonally raised from the surface of the printed circuit board. As described above, there is one in which the board terminal is bent in an L-shape and protruded to the side of the outer peripheral side of the board in parallel with the surface of the printed board.

  By the way, the printed circuit board with a substrate terminal described in Patent Document 1 and the like in which the substrate terminal protrudes to the side of the substrate is an external electric component with respect to the L-shaped substrate terminal. In order to secure a supporting force for insertion and removal, a board terminal is assembled to a resin material such as a connector base, and the board terminal is supported by the resin material.

  However, since such a structure requires a separate resin material, there is a problem in that the number of parts is increased and the structure is complicated. Further, since the board terminal is raised from the printed board and extended to the side, an extra material is required for raising the board terminal. Furthermore, there is a problem that the protruding height of the board terminal from the printed board is increased, resulting in an increase in size.

JP 2009-153319 A

  The present invention has been made in the background of the above-mentioned circumstances, and the problem to be solved is a novel structure capable of reducing the manufacturing cost with a simpler structure while reducing the size. It is providing the printed circuit board with the terminal for board | substrates.

  A first aspect of the present invention is a printed circuit board with a terminal for a substrate in which a terminal for a substrate connected to an external electrical component through a printed wiring is provided on the printed circuit board, in an outer peripheral portion of the printed circuit board, A pair of through-holes and a press-fitting hole are provided, and the board terminal is overlapped with the outer peripheral portion of the printed board, and a connection portion with the external electrical component provided on the front end side Are arranged in a state of projecting outward from the outer peripheral edge of the printed circuit board, and a pair of legs are bent and integrally formed on the base end side of the board terminal, and the pair of legs are formed as described above. While being inserted and soldered through a through hole, the board terminal is positioned between the pair of legs and located closer to the connecting part than the pair of legs, and protrudes in the same direction as the pair of legs. Bending the fixed protrusion Formed and, that the fixing protrusion and press-fitted into the press-fitting hole of the printed circuit board, characterized.

  According to the present invention, the fixed protrusion integrally formed with the board terminal is press-fitted and fixed in the press-fitting hole of the printed board. As a result, when the external electrical component is inserted into or removed from the board terminal, the board terminal can be attached to the printed board without using a special resin member such as a connector base against the pushing force or tensile force exerted on the board terminal. Can be directly supported. As a result, the structure can be simplified and the manufacturing efficiency can be improved by reducing the number of parts.

  In particular, the board terminal is provided with a pair of legs, and the fixed protrusion is provided between the pair of legs on the connection part side with the external electrical component. As a result, the pair of leg portions and the fixed protrusion are positioned at each vertex of the triangle, and the board terminal can be stably supported at three points with respect to the printed board. That is, when an external electrical component is inserted or removed, a fixed protrusion that is positioned away from the leg portion is external to an external force that rotates the board terminal on the surface of the printed board or an external force that floats from the printed board. The terminal for the board can be stably supported by exerting the resistance moment force with the distance from the leg as the arm length based on the press-fitting and fixing force to the printed board. And, since the press-fit fixing point (fixed protrusion) to the printed circuit board is located closer to the connecting part than the pair of legs, external force transmission to the soldering part during insertion / extraction to / from the external electrical component is performed. It can suppress more effectively. On the other hand, the external force in the direction in which the board terminal is brought closer to the printed board can be supported by bringing the board terminal into contact with the surface of the printed board.

  Furthermore, according to the present invention, the board terminals are arranged along the surface of the printed board without being raised from the printed board. Thereby, it is possible to reduce the thickness of the printed board with the terminal for a board and to reduce the material for the terminal for the board. Further, since the board terminals are provided on the outer peripheral portion of the printed board, the printed board can be used more effectively.

  According to a second aspect of the present invention, in the one described in the first aspect, the leg portion of the board terminal is loosely inserted into the through hole of the printed board, and the leg The projecting dimension of the part is larger than the projecting dimension of the fixed projecting part.

  According to this aspect, when soldering the board terminal to the printed board, the leg portion can be easily inserted into the through hole without requiring a special pushing force. First, the pair of leg portions are loosely inserted into the through holes to easily ensure the insertion state of the through holes, and the press fitting operation can be performed with the fixed protrusions positioned in the press fit holes. Assembling can be performed more easily and reliably.

  A third aspect of the present invention is the one described in the first or second aspect, wherein a plurality of the pair of through holes and the press-fitting holes are provided along the outer peripheral portion of the printed circuit board. It is.

  According to this aspect, a plurality of board terminals can be arranged on the outer peripheral portion of the printed board, and the printed board can be used more effectively. The press-fitting holes corresponding to the pair of through holes are located away from the straight line of the through holes. Therefore, even when a large number of through holes are arranged in a straight line, the press-fitting holes are used as marks. The corresponding pair of through holes can be easily recognized. Furthermore, when trying to insert the leg portion into a different through hole, since there is no press-fit hole at a position corresponding to the fixed protrusion, it is impossible to assemble the board terminal. Thereby, the incorrect assembly | attachment of the terminal for board | substrates can be prevented effectively.

  According to a fourth aspect of the present invention, in the one described in any one of the first to third aspects, the substrate terminal is an integrally molded product obtained by punching and bending a conductive metal plate. The pair of press contact blades are opposed to each other in the connection portion of the board terminal, and the space between the opposing surfaces of the pair of press contact blades is opened to the front end side of the board terminal in the protruding direction from the printed circuit board. On the other hand, a cut is formed on the base end side of the board terminal, and the pair of legs are integrally formed by bending both sides of the cut, and the cut The fixed protrusion is integrally formed by bending a protrusion formed between the pair of legs in the same direction as the legs.

  According to this aspect, the board terminal can be manufactured at low cost. And a fuse, a relay, etc. can be easily connected by pinching | interposing the terminal of an external electrical component with a pair of press contact blade.

  According to a fifth aspect of the present invention, there is provided the insulating member according to any one of the first to fourth aspects, wherein an insulating member is superposed on a superposed surface of the board terminal in the printed circuit board. The printed circuit board is sandwiched between the board terminals, and the printed board is provided with a bus bar with the insulating member in between, and the bus bar is connected to the external electrical component. A connection portion is formed to protrude outward from the printed board in the same direction as the board terminal, and the external electrical component is connected by the connection portion of the board terminal and the connection portion of the bus bar. An electrical component connecting portion is configured.

  According to this aspect, the electrical component connecting portion can be formed in a simple configuration and compactly by the bus bar and the board terminal. That is, when trying to combine the bus bar with the terminal for the board assembled on the resin pedestal etc., it becomes necessary to consider the shape of the resin pedestal so that the bus bar can be arranged, so the structure becomes complicated and large Invite. However, according to the present invention, since the board terminal is directly along the surface of the printed board without using a resin pedestal or the like, the combination with the bus bar can be realized with a simple configuration and compactly. I can do it.

  Furthermore, by effectively using an insulating member that insulates the printed circuit board from the bus bar and holding the board terminal, the board terminal can be more effectively prevented from lifting from the printed circuit board without increasing the number of components. I can do it. As a result, it is possible to more stably insert / remove external electrical components and reduce the risk of solder cracks.

  According to a sixth aspect of the present invention, in the fifth aspect, the insulating member is provided with a locking protrusion that engages with the bus bar in the insertion / extraction direction of the external electric component. It is what.

  In this way, when the external electric component is inserted into and removed from the bus bar, the locking protrusion engages with the bus bar, so that the play of the bus bar can be suppressed. Thereby, the external electrical component can be more stably inserted into and removed from the electrical component connecting portion.

  According to the present invention, by fixing the fixed protrusion integrally formed with the board terminal into the press-fitting hole of the printed board, the board terminal can be placed on the surface of the printed board without using a special member such as a resin base. In this state, it can be projected sideways and supported by a printed circuit board. Thereby, the manufacturing cost can be reduced by downsizing and simplification of the structure.

The disassembled perspective view of the electrical-connection box which accommodates the printed circuit board with the terminal for board | substrates as one Embodiment of this invention. The top view of the terminal for board | substrates. The side view of the terminal for board | substrates. The top view which shows the principal part of a printed circuit board. The side view which shows the assembly | attachment state to the printed circuit board shown in FIG. 4 of the terminal for board | substrates shown in FIG. The front view which shows the overlapping state of the insulation member and the bus-bar to the printed circuit board with a terminal for board | substrates. The perspective view of the assembly | attachment state of the electrical-connection box shown in FIG.

  Embodiments of the present invention will be described below with reference to the drawings.

  First, FIG. 1 shows an electrical connection box 12 in which a printed circuit board 10 with a terminal for a board as an embodiment of the present invention is accommodated. The electrical junction box 12 has a structure in which a printed circuit board 10 with a substrate terminal in which an insulating member 16 and a bus bar 18 are overlapped is accommodated between a lower case 14 and an upper case (not shown).

  A plurality of substrate terminals 22 are fixed to the printed circuit board 20 in the printed circuit board with substrate terminals 10. 2 and 3 show the board terminal 22. The substrate terminal 22 is an integrally molded product having a surface plated with tin or the like and is bent by press punching a conductive metal plate such as iron, copper, or brass.

  A connecting portion 24 is formed on the distal end side (right side in FIG. 2) of the board terminal 22. The connection portion 24 has a so-called tuning fork shape that has been widely used for connection to a fuse or the like, and a pair of press contact blades 26, 26 are provided on a flat plate portion 28 provided at the center portion of the board terminal 22. It protrudes from and is opposed to each other with a gap. Thereby, the space between the opposing surfaces of the press contact blades 26, 26 is opened to the front end side (right side in FIG. 2) in the protruding direction from the flat plate portion 28 of the press contact blades 26, 26.

On the other hand, a pair of leg portions 30 are integrally formed on the base end side (left side in FIG. 2) opposite to the connection portion 24 in the board terminal 22. The leg portions 30, 30 extend perpendicular to the flat plate portion 28, and in the present embodiment, have a substantially constant longitudinal rectangular cross-sectional shape over substantially the entire length in the extending direction. In addition, the size of the cross section of the leg portions 30 and 30 is set to a size that can be loosely inserted into through holes 42a and 42b described later. The pair of leg portions 30 are formed at the same position in the length direction of the board terminal 22 (left and right direction in FIG. 2).

  Note that the leg portions 30, 30 are, for example, when the developed shape of the outer shape of the board terminal 22 is punched from a conductive metal plate, the width direction of the base end side opposite to the connection portion 24 in the board terminal 22 (see FIG. 2, in the vertical direction), a notch 32 is formed in the central portion and opens in the base end side and extends in the length direction of the board terminal 22 (left and right direction in FIG. 2). The pair of leg portions 30 are integrally formed by bending each of the both side portions of the notch 32 vertically at the intermediate portion in the length direction. In addition, in the both sides of the notch 32, the width dimension of the formation part of the leg parts 30 and 30 is made slightly small.

  Further, a fixed protrusion 36 is integrally formed at the center of the cut 34 in the width direction of the bottom 34. The fixed protrusion 36 protrudes from the bottom 34 to the base end side, and is integrally formed by bending a protrusion piece located between the leg parts 30 and 30 in the same direction as the leg parts 30 and 30. Accordingly, the fixed protrusion 36 is positioned between the leg portions 30 and 30 in the width direction of the board terminal 22 (vertical direction in FIG. 2), and is fixed to the leg portions 30 and 30 with respect to the flat plate portion 28. It protrudes in the same direction. Further, the fixed protrusion 36 is located closer to the connecting portion 24 than the leg portions 30 and 30. The fixed protrusion 36 protrudes with a substantially constant square cross-sectional shape, and the protruding tip 38 has a tapered shape in which the four outer peripheral surfaces approach each other, and is press-fitted into a press-fit hole 44 described later. It is considered easy. Further, as shown in FIG. 3, the protruding dimension of the fixed protrusion 36 (the vertical dimension in FIG. 3) is made smaller than the protruding dimension of the leg portions 30 and 30.

  A plurality of such board terminals 22 are fixed to the outer peripheral portion 40 of the printed board 20 by soldering as shown in FIG. A plurality of terminal mounting portions 46 including a pair of through holes 42 a and 42 b and one press-fitting hole 44 are formed in the outer peripheral portion 40 of the printed circuit board 20. The through holes 42 a and 42 b penetrate the printed circuit board 20 with a cross-sectional shape that is slightly larger than the cross-sectional shape of the leg portions 30 and 30 so that the leg portions 30 and 30 of the board terminal 22 can be loosely inserted. It is installed. The through holes 42 a and 42 b are arranged along the outer peripheral end surface 48 that is the outer peripheral edge portion of the printed circuit board 20. A press-fitting hole 44 is formed at an intermediate portion between the through holes 42a and 42b and located closer to the outer peripheral end face 48 than the through holes 42a and 42b. The press-fitting hole 44 penetrates the printed circuit board 20 with a circular cross-sectional shape that is slightly smaller than the cross-sectional shape of the fixed protrusion 36 in the board terminal 22. The through holes 42a and 42b are formed with lands 50 at the periphery of the opening as is well known in the art, and are electrically connected to printed wiring (not shown) formed on the printed circuit board 20. No land 44 is formed as a simple through hole that is not connected to the printed wiring.

  A plurality of such terminal mounting portions 46 are formed along the outer peripheral end surface 48 in the outer peripheral portion 40 of the printed circuit board 20. Thus, the plurality of through holes 42a and 42b are formed on a straight line extending along the outer peripheral end surface 48, and the plurality of press-fitting holes 44 are arranged on the outer peripheral end surface 48 rather than the arrangement straight line of the through holes 42a and 42b. On the side, they are arranged on a straight line extending along the outer peripheral end surface 48.

  The board terminals 22 are soldered to the terminal mounting portions 46, respectively. As shown in FIG. 5, the board terminal 22 is soldered by the leg portions 30 and 30 being loosely inserted into the through holes 42a and 42b. At the same time, the fixed protrusion 36 is press-fitted into the press-fit hole 44 and fixed. The insertion amount of the leg portions 30 and 30 and the fixed protrusion 36 is defined by the board terminal 22 coming into contact with the surface 52 of the printed board 20. As a result, the board terminal 22 is fixed to the printed board 20 at the leg portions 30 and 30 and the fixed projection 36, and the leg portions 30 and 30 are electrically connected to a printed wiring (not shown). In the fixed state to the printed circuit board 20, the board terminal 22 is superimposed on the surface 52 of the outer peripheral portion 40 of the printed circuit board 20, and the connection portion 24 protrudes outward from the outer peripheral end surface 48 of the printed circuit board 20. . In this way, the plurality of board terminals 22 are attached to the outer peripheral portion 40 with the connection portions 24 protruding outward from the printed board 20, thereby configuring the printed board 10 with board terminals.

  As shown in FIG. 1, the insulating member 16 and the bus bar 18 are overlaid on the printed circuit board 10 with terminal for board. The insulating member 16 is formed of a non-conductive synthetic resin, and has a bus bar mounting portion 54 having a plate shape approximately the same size as the printed circuit board 20, and from the bus bar mounting section 54 toward the printed circuit board 20. It has the support part 56 which protrudes.

  A plurality of locking protrusions 58 are formed on the bus bar mounting portion 54. The locking protrusion 58 is a rectangular protrusion protruding from the bus bar mounting portion 54, and is an outer peripheral portion of the bus bar mounting portion 54 corresponding to the outer peripheral portion 40 of the printed circuit board 20. It is formed at predetermined intervals on a straight line along the outer peripheral end face 59. Note that the protruding height dimension of the locking protrusion 58 is slightly larger than the thickness dimension of the bus bar 18.

  Further, in the support portion 56, an accommodation recess 60 is formed at a position where it is overlapped with the outer peripheral portion 40 of the printed circuit board 20. The housing recess 60 has a groove shape that opens in the outer peripheral end surface 62 located on the same side as the outer peripheral end surface 48 of the printed circuit board 20 and the bottom surface 64 of the support portion 56 in the support portion 56, and the inner surface that corresponds to the groove bottom surface A pressing surface 66 is provided. The depth dimension from the bottom surface 64 of the housing recess 60 is substantially equal to the thickness dimension of the board terminal 22.

  On the other hand, the bus bar 18 is formed into a desired circuit shape by press punching a conductive metal plate such as iron, copper, or brass having a surface plated with tin or the like. The fusible link connection portion 70 and the like are bent and raised as necessary. In the bus bar 18, a plurality of connection portions 72 are formed to protrude outward from the bus bar 18 at predetermined intervals at an end portion of the bus bar mounting portion 54 located on the outer peripheral end face 59 side. The connecting portion 72 has the same shape as the connecting portion 24 of the board terminal 22. In addition, notches 74 are formed on both sides of the protruding base end portion of each connection portion 24.

  Then, as shown in FIG. 6, the insulating member 16 is overlaid on the surface 52 of the printed circuit board 10 with terminal for a board, and the bus bar 18 is overlaid on the bus bar mounting portion 54 of the insulating member 16. It has become. Thereby, the overlapping portion of the plurality of substrate terminals 22 with the printed circuit board 20 is accommodated in the accommodation recess 60 of the insulating member 16, and each substrate terminal 22 is connected to the surface 52 of the printed circuit board 20 and the insulating member 16. While being sandwiched by the pressing surface 66, the connecting portion 24 protrudes outward from the outer peripheral end surface 48 of the printed circuit board 20 and the outer peripheral end surface 62 of the insulating member 16. A bus bar 18 is disposed on the printed circuit board 20 with the insulating member 16 interposed therebetween. When the bus bar 18 is mounted on the bus bar mounting portion 54, the connection portion 72 projects from the outer peripheral end surface 59 of the bus bar mounting portion 54 outward in the same direction as the connection portion 24 of the board terminal 22. The notch 74 is adapted to fit with the locking projection 58.

  As a result, the connection portions 24 of the board terminals 22 provided on the printed board 10 with board terminals and the connection portions 72 of the bus bars 18 are connected to the printed board 20 and the insulating member 16 outside the printed board 20. They are opposed to each other at a predetermined interval in the overlapping direction (vertical direction in FIG. 6). Accordingly, the plurality of fuse connection portions 76 as electrical component connection portions are located outside the printed circuit board 20 by the connection portion 24 of the board terminal 22 and the connection portion 72 of the bus bar 18 which are opposed to each other. It is formed at a predetermined interval in the length direction of the outer peripheral end surface 48 of the substrate 20 (left and right direction in FIG. 6).

  As shown in FIG. 1, the printed circuit board 10 with board terminals, the insulating member 16, and the bus bar 18 are housed in a case including a lower case 14, an upper case (not shown), and a side case 78. The lower case 14 is formed of a non-conductive synthetic resin, and has a substantially rectangular box that is integrally formed with a peripheral wall 84 over the entire circumference of the plate portion 82 that covers the back surface 80 of the printed circuit board 20. It is made into a shape. In the peripheral wall 84, a rectangular notch-shaped window portion 86 that opens in a protruding direction from the plate portion 82 of the peripheral wall 84 is formed at a portion located on the outer peripheral portion 40 side of the printed circuit board 20. A slit-like fitting groove 88 is formed.

  On the other hand, the side case 78 is made of non-conductive synthetic resin, and a plurality of fuse accommodating portions 92 are formed on a plate portion 90 having a substantially longitudinal rectangular shape. The fuse accommodating portion 92 has a conventionally known shape, and is a rectangular recess capable of accommodating the fuse 96 (see FIG. 7). A plurality of such fuse accommodating portions 92 are formed side by side in the length direction of the plate portion 90 so as to correspond to the plurality of fuse connecting portions 76 provided on the printed circuit board 10 with a substrate terminal. Although not necessarily clear from the drawings, in each fuse accommodating portion 92, a terminal insertion hole that penetrates the plate portion 90 at a position corresponding to the connection portion 24 of the board terminal 22 and the connection portion 72 of the bus bar 18 is provided. Is open.

  Then, as shown in FIG. 7, the connection portion 24 of the board terminal 22 and the connection portion 72 of the bus bar 18 protrude into the fuse housing portions 92 through the terminal insertion holes of the side cases 78. As a result, the side case 78 is mounted on the side surface of the printed circuit board 10 with the board terminal on the outer peripheral end surface 48 side, and a plurality of fuse mounting portions 94 are formed.

  Further, the lower case 14 is assembled from the back surface 80 side of the printed circuit board 10 with the terminal for board. As a result, as shown in FIG. 7, the printed board 10 with board terminals, the insulating member 16, and the bus bar 18 are accommodated in the lower case 14. At the same time, the plate portion 90 of the side case 78 is inserted into the fitting groove 88 of the lower case 14 and assembled to the lower case 14, and a plurality of fuse accommodating portions 92 are projected to the side of the lower case 14 through the window portion 86. The And the electrical connection box 12 is formed by assembling the upper case which is not illustrated. A fuse 96 as an external electrical component is inserted into the fuse housing portion 92 of the electrical connection box 12 and connected to the connection portion 24 of the board terminal 22 and the connection portion 72 of the bus bar 18, thereby not shown. The printed wiring of the printed circuit board 20 and the bus bar 18 are electrically connected.

  According to the present embodiment, as shown in FIG. 5, the fixed protrusion 36 integrally formed with the board terminal 22 is press-fitted and fixed to the press-fit hole 44 of the printed board 20. As a result, when the fuse 96 is inserted into and removed from the connection portion 24, the board terminal 22 can be firmly supported in the insertion and removal direction of the fuse 96 (left and right direction in FIG. 5). As a result, without using a special resin material such as a pedestal, the supporting force of the board terminal 22 is ensured to suppress the risk of solder cracks, and the board terminal 22 is directly connected to the surface 52 of the printed board 20. It can be protruded to the side in a state where As a result, it is possible to reduce the thickness of the printed circuit board 10 with terminal for a substrate, simplify the structure, and reduce the manufacturing cost.

  In particular, the fixed protrusion 36 is positioned closer to the connecting portion 24 than the leg portions 30 and 30 that are the soldering portions, and the board terminal 22 is positioned between the pair of leg portions 30 and 30 and the fixed protrusion. Since it is fixed to the printed circuit board 20 at three points of the portion 36, when the fuse 96 is inserted and removed, an external force in the left and right direction (up and down direction in FIG. 2) on the surface 52 of the printed circuit board 20 with respect to the board terminal 22. When an external force is exerted on the surface of the printed circuit board 20 or when an external force is exerted on the surface 52 of the printed circuit board 20 (upward in FIG. 5), the fixed protrusion 36 is press-fitted into the press-fit hole 44. By exerting a resistance moment force with the distance from the portion 30 to the fixed projection 36 as an arm length, it is possible to effectively prevent the board terminal 20 from being displaced in the left-right direction and lifted from the printed board 20, and the board terminal 20 down While supporting it regularly, generation | occurrence | production of a solder crack can be suppressed. In particular, since the board terminal 22 is pressed by the pressing surface 66 of the insulating member 16, the floating can be prevented more effectively. On the other hand, when an external force in the direction toward the printed circuit board 20 side (downward in FIG. 5) is applied to the substrate terminal 22, the substrate terminal 22 contacts the surface 52 of the printed circuit board 20 and is displaced. By being limited, it is possible to stably support the board terminal 22 and suppress the occurrence of solder cracks. In addition, the bus bar 18 can obtain a supporting force with respect to insertion / extraction of the fuse 96 by engaging the locking projection 58 provided on the insulating member 16 with the notch 74 in the insertion / extraction direction of the fuse 96. ing. Thereby, more stable insertion / extraction can be performed.

  Since the board terminal 22 can be directly fixed to the printed circuit board 20 in a laterally projecting state without using a resin material such as a pedestal, the bus bar 18 combined with the board terminal 22 has a simple configuration. And can be arranged compactly. At the same time, it is not necessary to raise the board terminal 22 from the printed board 20, so that the material of the board terminal 22 can be reduced.

  In addition, since the plurality of board terminals 22 are arranged on the outer peripheral portion 40 of the printed board 20, a larger effective space of the printed board 20 can be secured. Furthermore, as in the present embodiment, even if a large number of through holes 42a and 42b are arranged in a straight line, the corresponding through holes 42a and 42b can be easily identified using the press-fit holes 44 as marks, If the leg portions 30 and 30 are to be inserted through the through hole 42b of one terminal mounting portion 46 and the through hole 42a of the other terminal mounting portion 46 by mistake, they are press-fitted into the positions corresponding to the fixed protrusions 36. Since the hole 44 does not exist, erroneous assembly of the board terminal 22 can be prevented.

  Further, the projecting dimension of the fixed projection 36 of the board terminal 22 is made smaller than the projecting dimension of the leg parts 30 and 30, and the leg parts 30 and 30 are loosely inserted into the through holes 42a and 42b. It has become. Accordingly, when the board terminal 22 is assembled to the printed board 20, the through holes 42a and 42b are required without requiring a special pushing force when the legs 30 and 30 are loosely inserted before the press fitting of the fixed protrusion 36. The fixed protrusion 36 can be press-fitted into the press-fitting hole 44 after being inserted and positioned. Thereby, the press-fitting work of the fixed protrusion 36 can be performed more easily and reliably.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited by the specific description. For example, as the shape of the connection portion of the board terminal, various shapes can be appropriately employed according to the terminal shape of the external electric component to be connected. Therefore, for example, the connecting portion may be formed in a flat plate-like tab shape so that a connector as an external electrical component can be connected.

  In the above embodiment, the plurality of board terminals are arranged only on one outer peripheral part of the printed board, but it is of course possible to arrange them on the plurality of outer peripheral parts. Furthermore, the board terminal does not necessarily have to be combined with the bus bar, and the electrical component connecting portion may be configured with only the board terminal. Alternatively, two printed circuit boards with board terminals may be stacked, and the board terminals may cooperate to form the electrical component connection portion.

  Further, for example, in the printed circuit board 20 of the above-described embodiment, by providing a board terminal protruding perpendicular to the back surface 80 and projecting the board terminal to a connector hood or the like provided on the plate portion 90 of the lower case 14, Of course, it is possible to form a connection portion with an electrical component on the plate portion 82 of the lower case 14 as necessary.

10: Printed board with terminal for board, 16: Insulating member, 18: Bus bar, 20: Printed board, 22: Terminal for board, 24: Connection part (connection part of terminal for board), 30: Leg part, 32: Notch , 34: bottom, 36: fixed protrusion, 40: outer peripheral portion, 42a, b: through hole, 44: press-fit hole, 48: outer peripheral end surface (outer peripheral edge portion of the printed circuit board), 58: locking protrusion, 72: Connection part (bus bar connection part), 76: fuse connection part (electric part connection part), 96: fuse (external electric part)

Claims (6)

In the printed circuit board with the terminal for a board provided on the printed circuit board, the terminal for the board connected to the external electrical component through the printed wiring,
The outer peripheral portion of the printed circuit board is provided with a pair of through holes and a press-fitting hole,
The board terminal is overlapped with the outer peripheral portion of the printed circuit board, and a connection portion with the external electrical component provided on the front end side is disposed in a state of protruding outward from the outer peripheral edge of the printed circuit board. With
While bending and integrally forming a pair of legs on the base end side of the board terminal, the pair of legs are inserted through the through holes and soldered,
In the terminal for the board, between the pair of legs, a fixed protrusion that is positioned closer to the connecting part than the pair of legs and protrudes in the same direction as the pair of legs is bent and formed integrally. And
A printed board with a terminal for a board, wherein the fixing protrusion is press-fitted and fixed into the press-fitting hole of the printed board.   The leg portion of the board terminal is loosely inserted into the through hole of the printed circuit board, and the projecting dimension of the leg part is larger than the projecting dimension of the fixed projecting part. Item 8. A printed circuit board with a terminal for a substrate according to Item 1.   The printed circuit board with a terminal for a board according to claim 1 or 2, wherein a plurality of the pair of through holes and the press-fitting holes are provided along the outer peripheral portion of the printed circuit board. The substrate terminal is an integrally molded product obtained by punching and bending a conductive metal plate,
The connecting portion of the board terminal has a shape in which a pair of press contact blades are opposed to each other, and a space between the opposing surfaces of the pair of press contact blades is opened to the front end side in the protruding direction of the board terminal from the printed board. While being
A notch is formed on the base end side of the board terminal, and the pair of legs are integrally formed by bending both sides of the notch,
The fixed protrusion is integrally formed by bending a protrusion formed between the pair of legs at the bottom of the notch in the same direction as the legs. The printed circuit board with the terminal for a board | substrate as described in a term. While the insulating member is superimposed on the overlapping surface of the board terminal in the printed board, the board terminal is sandwiched between the insulating member and the printed board,
A bus bar is disposed on the printed board with the insulating member interposed therebetween,
The bus bar has a connection portion with the external electrical component formed to protrude outward from the printed board in the same direction as the board terminal,
The board terminal according to any one of claims 1 to 4, wherein an electrical component connection section to which the external electrical component is connected is constituted by the connection section of the board terminal and the connection section of the bus bar. Printed circuit board.   The printed board with terminal for a board according to claim 5, wherein a locking protrusion that engages with the bus bar in the insertion / extraction direction of the external electric component protrudes from the insulating member.

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