JP5935095B2 - Electrical junction box - Google Patents

Description

  The present invention relates to an electrical connection box provided with a printed circuit board, and more particularly, to a connection part of a board terminal provided on the printed circuit board, a side part connection part to which an electrical component is connected from the side of the printed circuit board. The present invention relates to an electrical junction box provided.

  Conventionally, in an electrical connection box mounted on an automobile or the like, a printed circuit board is accommodated therein, and a connection portion of a substrate terminal connected to a conductive path of the printed circuit board or an insulation placed on the printed circuit board The connection part provided on the bus bar supported by the board can be connected to external electrical parts such as fuses and connectors via part connection parts such as fuse connection parts and connector connection parts opened on the surface. Yes. In particular, in recent years, with the demand for miniaturization and high density of the electrical junction box, there are those in which the board terminals are bent in an L shape and provided with side part connection portions that open on the side surfaces of the electrical junction box. Are known. For example, those described in Japanese Patent Application Laid-Open No. 2012-115053 (Patent Document 1).

  By the way, in such an electrical junction box, as is clear from FIGS. 1 and 4 of Patent Document 1, an insulating plate on which a bus bar provided with a connection portion is placed, a connection portion of a board terminal, and a bus bar The terminal holding base such as a fuse base for holding the connecting portion is directly fixed to the printed circuit board. The reason for adopting such a structure is that when soldering board terminals and bus bars to the printed circuit board, due to the difference in coefficient of linear expansion between the printed circuit board and the insulating plate or terminal holding base, when heat is drawn after soldering, This is because the insulating plate and the terminal holding base are displaced relative to the printed board. Therefore, it is intended that the amount of relative displacement with respect to each printed circuit board is reliably suppressed by directly attaching the insulating plate and the terminal holding base individually to the printed circuit board.

  However, in order to directly attach both the insulating plate and the terminal holding base to the printed circuit board that becomes hot during soldering, the insulating plate and the terminal holding base are required to have high heat resistance, and an expensive synthetic resin material with high heat resistance is required. I had to use. In particular, in an electrical junction box provided with a side part connection part, a plurality of board terminals erected by soldering one end part to a printed circuit board are bent in an L shape and provided at the other end part. The connecting portion is disposed on the side component connecting portion. Therefore, since the terminal holding base supports a large insertion / extraction force applied in a direction perpendicular to the standing direction of the substrate terminal, an increase in size is inevitable. Therefore, in the electrical junction box provided with the side part connecting portion of the conventional structure, there is a problem that a large terminal holding base has to be formed of an expensive heat-resistant material, and an increase in cost is inevitable. .

JP 2012-115053 A

  The present invention has been made in the background as described above, and the problem to be solved is an electrical connection box provided with a side component connecting portion for connecting an electrical component to the printed circuit board from the side. An object of the present invention is to provide an electrical junction box having a novel structure capable of reducing the ratio of the high heat-resistant resin in the side part connection portion.

  Hereinafter, embodiments of the present invention made to solve the above-described problems will be described. In addition, the component employ | adopted in each aspect as described below is employable by arbitrary combinations as much as possible.

In the first aspect of the present invention, a side component connecting portion for connecting an electrical component to the printed circuit board from the side is provided, and the side component connecting portion is bent in an L shape to A board terminal having a soldered part soldered to the printed circuit board at the end and a terminal side connecting part at the other end, a bus bar provided with a bus bar side connecting part, the terminal side connecting part, and the In an electrical connection box configured to include a terminal holding base on which a bus bar side connection portion is disposed and an insulating plate that is placed on the printed board and supports the bus bar, the terminal holding base is It is mounted on the printed board via an insulating plate, and the terminal holding base and the insulating plate are fixed to the printed board with a common fastening member, and the electric component is mounted on the terminal holding base. Part housing part to be mounted Characterized in that it is integrally formed.

According to this aspect, the terminal holding base can be fixed to the printed circuit board via the insulating plate by skillfully using the insulating plate that holds the bus bar constituting the side part connecting portion. Therefore, when the board terminal is soldered to the printed board, the heat of the printed board is transferred to the fuse pedestal by using an insulating plate, and the terminal holding pedestal becomes hot. This can advantageously be prevented. As a result, the material for the terminal holding base, which must be large for supporting the L-shaped substrate terminal, is not an expensive synthetic resin material such as PBT glass fiber 30 with high heat resistance, but PBT, PA, etc. General-purpose engineering plastics can be used. Therefore, the material cost is reduced and the cost can be reduced by improving workability such as easy processing. Further, in the conventional structure described in Patent Document 1, the component housing portion such as the fuse housing portion is separated from the terminal holding base such as the fuse base, and the component housing portion is configured by using inexpensive general-purpose engine plastics or the like. In contrast, the use of expensive synthetic resin materials with high heat resistance has been reduced, but in this mode, the terminal holding base is not required to have high heat resistance in the first place and is formed of general-purpose engineering plastics. As a result, the component housing portion and the terminal holding base can be integrally formed. As a result, the number of parts is reduced, and the work of assembling the part housing part to the terminal holding part is not required, so that improvement in workability and further cost reduction can be achieved advantageously.

  In addition, since the insulating plate and the terminal holding part are fixed to the printed circuit board by a common fastening member, even when the linear expansion coefficients of the terminal holding base and the insulating plate are different, the heat is drawn after soldering. Their relative displacement is prevented by a common fastening member. Therefore, the occurrence of solder cracks can be advantageously prevented.

  According to a second aspect of the present invention, in the electrical junction box according to the first aspect, while the fixing bolt is employed as the common fastening member, the screw hole formed in the terminal holding base is configured to By overlapping the insertion hole provided in the printed circuit board and the screw through hole provided in the insulating plate, and inserting the fixing bolt through the insertion hole and the screw through hole and screwing into the screw hole. The terminal holding base and the insulating plate are fixed to the printed board.

  According to this aspect, the terminal holding base and the insulating plate can be printed at the same time simply by inserting the insertion hole provided in the printed circuit board and the screw through hole provided in the insulating plate and screwing the fixing bolt into the screw hole. It can be fixed to the substrate. The insulating plate and the terminal holding base can be firmly and easily fastened to the printed board with a fixing bolt as a common fastening member. Thereby, improvement of workability | operativity and the further improvement of the reliability of a soldering part can be aimed at.

  According to the electrical junction box of the present invention, since the terminal holding base is fixed to the printed board through the insulating plate that is placed on the printed board and supports the bus bar, the terminal holding base is heated at the time of soldering. This can be advantageously prevented. Thereby, it is not necessary to use a highly heat-resistant material for the terminal holding base, and the cost can be reduced due to a reduction in material cost and ease of processing. Moreover, since it is fixed to the printed circuit board by a common fastening member, the relative displacement between the terminal holding base and the insulating plate at the time of heat drawing after soldering can be prevented, and the occurrence of solder cracks and the like can be advantageously prevented.

The disassembled perspective view of the electrical-connection box as one Embodiment of this invention. The top view of the printed circuit board shown in FIG. III-III sectional drawing in FIG. The disassembled perspective view of the fuse module of the printed circuit board shown in FIG. The top view of the insulating board shown in FIG. The perspective view seen from the left side of the printed circuit board shown in FIG. The A section enlarged view of FIG.

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

  The electrical junction box 10 as one Embodiment of this invention is shown by FIGS. As shown in FIG. 1, the electrical junction box 10 constitutes an internal circuit between an upper case 12 and a lower case 14 formed by injection molding or the like with a synthetic resin such as polypropylene (PP) or polyamide (PA). The printed circuit board 16 is accommodated. In the following description, unless otherwise specified, “upper” means the upper case 12 side, and “lower” means the lower case 14 side.

  As shown in FIG. 1 and FIG. 2, a fuse module as a side component connecting portion that connects a fuse as an electric component (not shown) from one side to the printed board 16 at one end portion of the printed board 16. 18 is provided. As conventionally known, various electrical components (not shown) such as relays and connectors are mounted on the printed circuit board 16 together with the fuse module 18. 3 and 4, the fuse module 18 includes an insulating plate 20 that is placed on the printed circuit board 16 and supports bus bars 26 and 28, which will be described later, and a fuse base 22 as a terminal holding base. Yes. Further, the fuse module 18 includes a plurality of bus bars 26 and 28 mounted on and supported by the upper surface of the insulating plate 20 and a plurality of board terminals 30 a to 30 c soldered to the printed circuit board 16. .

  More specifically, the substrate terminals 30a to 30c are formed in an L shape that is punched from a metal plate such as copper or a copper alloy and bent at a right angle. A soldering portion 31 to be soldered to the printed circuit board 16 is provided at one end portion of each substrate terminal 30. The sizes of the board terminals 30a to 30c are different from each other, and the projecting heights from the printed board 16 when standing on the printed board 16 are different from each other. Further, a terminal-side connecting portion 33 having a tuning fork shape is provided at the other end portion of each substrate terminal 30. Although not shown in detail, the terminal side connection portion 33 has a known tuning fork shape having a pair of press contact blades, and a tab-like connection terminal of a fuse (not shown) is press-fitted between the press contact blades. It has become so.

  Further, the bus bars 26 and 28 placed on the insulating plate 20 are formed of a metal plate such as copper or copper alloy punched by press working. As shown in FIG. 3, the bus bar 26 has a crank shape, and has a substantially flat plate-like upper wall portion 34, bent perpendicularly from the upper wall portion 34, and perpendicular to the upper wall portion 34. A rear wall portion 36 that extends and a flat plate portion 38 that is bent perpendicularly from the lower end of the rear wall portion 36 and extends perpendicularly to the rear wall portion 36 are provided. As shown in FIGS. 6 and 7, a tab terminal 40 protrudes from the side edge of the bus bar 26. On the other hand, the bus bar 28 has a flat plate shape extending in the horizontal direction. A vertical wall portion 41 extending downward is provided at one end portion of the bus bar 28 and is locked to the side surface of the insulating plate 20. A tab terminal 42 protrudes from the vertical wall portion 41 of the bus bar 28. These tab terminals 40 and 42 are fitted with connectors provided at electric wire terminals (not shown), and external power and signals are input to the bus bars 26 and 28. ing.

  In addition, a plurality of soldering portions 44 projecting toward the printed circuit board 16 are integrally formed at the extending end portion of the bus bar 26 on the flat plate portion 38 side, and a through hole 46 penetrating the printed circuit board 16 is formed. It is inserted and fixed by soldering.

  A bus bar side connection portion 50a having a plurality of tuning fork shapes is integrally formed in a parallel state at the extended end portion on the upper wall portion 34 side of the bus bar 26. A part of it is shown in FIG. The bus bar side connection portion 50a of the bus bar 26 has a well-known tuning fork shape including a pair of press contact blades spaced apart from each other, and a tab-like connection terminal of a fuse (not shown) is press-fitted between the press contact blades. It has become. Similarly, the bus bar 28 is also formed with a bus bar side connection portion 50b having a plurality of tuning fork shapes at the edge thereof. A part of it is shown in FIG.

  Such bus bars 26 and 28 are placed and supported on the insulating plate 20 placed on the printed circuit board 16. As shown in FIG. 5, the insulating plate 20 has a substantially rectangular flat plate shape as a whole, and in order to ensure heat resistance when soldering the bus bar 26 and the board terminals 30 a to 30 c to the printed board 16, It is an integrally molded product formed from a non-conductive synthetic resin such as PBT containing high glass fiber. As shown in FIG. 5, a plate-like support portion 56 in which the bus bars 26 and 28 are accommodated is provided on a part of the insulating plate 20 (upper left portion in FIG. 5). An insertion hole 58 through which the soldering portion 44 of the bus bar 26 is inserted is provided in the peripheral portion of the support portion 56. Further, leg portions 60 that are formed to protrude toward the printed circuit board 16 are provided at appropriate positions on the outer peripheral edge of the insulating plate 20.

  As shown in FIG. 5, a plurality of first insertion holes 62, a plurality of second insertion holes 64, and a plurality of third insertion holes 66 are provided at an intermediate portion in the depth direction (vertical direction in FIG. 5) of the insulating plate 20. Are formed in a straight line in the width direction of the insulating plate 20 (left and right direction in FIG. 5) at different positions in the depth direction of the insulating plate 20. Furthermore, a plurality of support pins 68 are formed in parallel on the insulating plate 20 so as to be positioned closer to the edge of the insulating plate 20 than the third insertion hole 66. The support pin 68 has a bar shape with a substantially convex cross section protruding upward from the insulating plate 20. The support pins 68 are positioned between the third insertion holes 66 in the width direction of the insulating plate 20. Further, at the corners at both ends in the width direction of the insulating plate 20, leg portions 70 are formed as concave portions having a ¼ circular shape extending in a range of approximately 90 °. A screw through hole 72 is formed through the central portion of the leg portion 70.

  On the other hand, the fuse pedestal 22 is made of non-conductive synthetic resin such as general-purpose engineering plastics such as PBT and PA, which has lower heat resistance than the insulating plate 20, and is substantially equal to the insulating plate 20 as shown in FIG. It has a longitudinal block shape having a width direction dimension.

  In the fuse pedestal 22, a plurality of electrical component mounting portions 74 penetrating the fuse pedestal 22 in the front-rear direction (left-right direction in FIG. 6) are arranged in a straight line in the longitudinal direction of the fuse pedestal 22 and vertically (See FIG. 4). Each electrical component mounting portion 74 accommodates and arranges each terminal side connection portion 33 provided on the plurality of board terminals 30a to 30c and each bus bar side connection portion 50 provided on the bus bars 26 and 28. ing. Specifically, for example, in the portion shown in FIG. 3, the upper housing groove 76 that houses and holds the side edge portion of the bus bar side connection portion 50 a of the bus bar 26 on the upper wall portion of the electrical component mounting portion 74 a provided in the upper stage. However, the opening is formed behind the fuse base 22 (leftward in FIG. 3). Further, a lower housing groove 78 for housing and holding the side edge of the terminal side connection portion 33a of the board terminal 30a is formed in the lower wall portion of the electrical component mounting portion 74a so as to open to the rear of the fuse base 22. Yes. On the other hand, an upper housing groove 80 for housing and holding the side edge of the bus bar side connection portion 50b of the bus bar 28 opens to the rear of the fuse base 22 on the upper wall portion of the electrical component mounting portion 74b provided in the lower stage. Is formed. In addition, a lower accommodation groove 82 that accommodates and holds the side edge portion of the terminal side connection portion 33b of the board terminal 30b is formed in the lower wall portion of the electrical component mounting portion 74b so as to open to the rear of the fuse base 22. Yes.

  Engaging protrusions 84 projecting toward the printed circuit board 16 are integrally formed at both ends in the width direction of the fuse base 22 (see FIGS. 4 and 6). The engaging protrusion 84 has a cylindrical shape, and is provided with a screw hole 86 that opens on the bottom surface side (printed circuit board 16 side) (see FIG. 3).

  In the fuse pedestal 22, fuse housing portions 88a and 88b as component housing portions are integrally formed at the front opening portions of the respective electric component mounting portions 74a and 74b so as to open to the front. Can be installed. The fuse housing portions 88a and 88b are substantially rectangular recesses, and a case portion of a fuse (not shown) inserted into the electric component mounting portions 74a and 74b is accommodated and held.

  When assembling the fuse module 18 having the above-described structure, as shown in FIG. 3, first, the bus bar side connection portions of the bus bars 26 and 28 are arranged from the rear side (left side in FIG. 3) of the fuse base 22. 50 and the terminal-side connecting portions 33 of the board terminals 30a to 30c are inserted into predetermined upper and lower receiving grooves 76, 78, 80, 82 in the electric component mounting portions 74a, 74b. In the fuse pedestal 22 shown in FIG. 4, the bus bar side connection portions 50 of the predetermined bus bars 26 and 28 and the terminal side connection portions 33 of the board terminals 30a to 30c are arranged on the electrical component mounting portions 74a and 74b. The pressure contact blades of the connection portions 33 and 50 are exposed from the fuse housing portions 88a and 88b provided at the front openings of the electric component mounting portions 74a and 74b.

  In this manner, the fuse base 22 in which the bus bars 26 and 28 and the plurality of substrate terminals 30a to 30c are accommodated is overlapped with the insulating plate 20 from above. At this time, the fuse pedestal 22 is inserted into a plurality of support pin insertion holes (not shown) provided at corresponding positions of the fuse pedestal 22 by projecting the plurality of support pins 68 projecting from the insulating plate 20, respectively. 20 can be positioned and assembled. Although not shown, each support pin 68 is fitted into a recess formed in the side edge of each connection portion 33, 50, so that the tab terminal of the fuse is pressed against each connection portion 33, 50. It is the same as the conventional structure described in Patent Document 1 that the insertion / extraction force can be supported when inserting / removing between the blades.

  When the fuse pedestal 22 is overlaid on the insulating plate 20 in this way, the soldering portion 44 provided on the bus bar 26 and the soldering portion 31 provided on each board terminal 30 are provided on the insulating plate 20. The insertion hole 58 is inserted into any one of the first insertion hole 62, the second insertion hole 64, and the third insertion hole 66 so as to protrude below the insulating plate 20. For example, in the portion shown in FIG. 3, the soldering portion 44 provided in the bus bar 26 passes through the insertion hole 58 of the insulating plate 20 and protrudes downward, and the soldering portion 31 a of the board terminal 30 is the first. While the one insertion hole 62 is inserted, the soldered portion 31b of the board terminal 30 is inserted through the third insertion hole 66 and protrudes downward. In FIG. 3, it can also be seen that the soldered portion 31 c of the board terminal 30 c arranged in the back passes through the second insertion hole 64 and protrudes downward.

  When the fuse pedestal 22 is superimposed on the insulating plate 20, the engaging protrusion 84 of the fuse pedestal 22 is placed on the screw through hole 72 formed in the leg portion 70 of the insulating plate 20, and the engaging protruding portion. A screw hole 86 provided in 84 is positioned substantially coaxially in a screw through hole 72 provided in the insulating plate 20. Here, as shown in FIG. 4 and FIG. 6, locking claws 90, 90 project in the vicinity of the engaging projection 84 on both sides in the longitudinal direction of the fuse base 22. As shown in an enlarged view in FIG. 7, an engagement frame body 92 projecting in a cantilever manner on the outer surface of the leg portion 70 of the insulating plate 20 is lock-fitted to these locking claws 90, 90. It is like that. As a result, the fuse base 22 and the insulating plate 20 are locked and fixed in a positioned state.

  Such a fuse module 18 is placed on one side end of the printed circuit board 16. When the fuse module 18 is placed on the printed circuit board 16, the soldered portion 44 of the bus bar 26 protruding from the insulating plate 20 and the soldered portions 31 a to 31 c of the substrate terminals 30 a to 30 c are provided to penetrate the printed circuit board 16. The through holes 46 are respectively inserted. In addition, screw holes 86 provided in the engaging protrusions 84 of the fuse base 22 and the screw through holes 72 formed in the leg portions 70 of the insulating plate 20 that are aligned substantially coaxially with each other are formed in the printed circuit board 16. It is aligned and overlapped on the provided insertion hole 94 (see FIG. 3). Then, from the back surface side of the printed circuit board 16, the fixing bolt 96 as a common fastening member is inserted into the insertion hole 94 and the screw through hole 72 and screwed into the screw hole 86 of the engagement protrusion 84. The protrusion 84 is fixed to the printed circuit board 16 via the insulating plate 20. As a result, the fuse base 22 is firmly fixed to the printed circuit board 16, and the insulating plate 20 is sandwiched and fixed between the engagement protrusion 84 of the fuse base 22 and the printed circuit board 16. In short, the fuse pedestal 22 is placed on the printed circuit board 16 via the insulating plate 20, and the fuse pedestal 22 and the insulating plate 20 are fastened together with the printed circuit board 16 with fixing bolts 96 as a common fastening member. It is fixed.

  In this state, after fixing the fuse module 18 on the printed circuit board 16, the soldered portion 44 of the bus bar 26 inserted into the through hole 46 of the printed circuit board 16 and the soldered portions 31a to 31c of the substrate terminals 30a to 30c. Etc., and an electrical component such as a relay (not shown) mounted on the same surface as the fuse module 18 on the printed circuit board 16 is soldered to the printed circuit board 16 by a known method such as flow soldering. As a result, the fuse module 18 is disposed and fixed to the side of the printed circuit board 16, and the bus bar 26 and the board terminals 30 a to 30 c are electrically connected to the printed wiring (not shown) provided on the printed circuit board 16. It is done.

  The printed circuit board 16 having such a structure is accommodated between the upper case 12 and the lower case 14, and the upper case 12 and the lower case 14 are assembled to each other, whereby the electrical junction box 10 is configured. The fuse housing portions 88a and 88b of the fuse module 18 are accommodated between the side opening portions 98a and 98b of the cases 12 and 14 in the accommodated state in the cases 12 and 14 (see FIG. 1). As a result, the fuse module 18 which is a side component connecting portion is disposed to be opened laterally. A fuse (not shown) as an electrical component is inserted and attached to each fuse housing portion 88a, 88b from the side of the printed circuit board 16. The tab terminals of the fuses inserted in the fuse housing portions 88a and 88b are connected to the bus bar side connection portions 50 of the bus bars 26 and 28 disposed in the electric component mounting portions 74a and 74b and the board terminals 30a to 30c. It is press-fitted between the press contact blades of the terminal side connection portion 33 and connected.

  According to the electrical junction box 10 in the present embodiment, in order to support the bus bars 26 and 28 constituting the fuse module 18 on the printed circuit board 16, the insulating plate 20 placed on the printed circuit board 16 is skillfully used. The fuse base 22 is fixed to the printed circuit board 16 via the insulating plate 20. Therefore, when the soldering portion 44 of the bus bar 26 and the soldering portions 31a to 31c of the board terminals 30a to 30c are soldered to the printed board 16, the heat of the printed board 16 is transmitted to the fuse base 22. The insulating plate 20 can be used for buffering, and the fuse base 22 can be advantageously prevented from becoming high temperature. Therefore, it is possible to form the large fuse pedestal 22 with a cheaper material such as general-purpose engineering plastics such as PBT and PA, instead of expensive synthetic resin materials such as PBT glass fiber 30 having high heat resistance. Cost reduction can be achieved.

  Further, since the fuse base 22 and the insulating plate 20 are fastened and fixed to the printed circuit board 16 by the common fixing bolt 96, the linear expansion coefficients of the fuse base 22 and the insulating plate 20 are different. Even if it is, the relative displacement at the time of heat drawing after soldering can be prevented by the fixing bolt 96. Therefore, it is possible to advantageously prevent the occurrence of solder cracks and the like due to their relative displacement.

  Further, the insulating plate 20 and the fuse pedestal 22 can be simultaneously connected by simply inserting the insertion hole 94 of the printed circuit board 16 and the screw through hole 72 of the insulating plate 20 and screwing the fixing bolt 96 into the screw hole 86 of the fuse pedestal 22. The printed circuit board 16 can be firmly and easily fastened together. Thereby, improvement of workability | operativity and the further improvement of the reliability of a soldering part can be aimed at.

  In addition, since the fuse base 22 can be made of an inexpensive material such as general-purpose engineering plastic, the fuse housing portions 88a and 88b to which the fuses are mounted can be formed integrally with the fuse base 22. Therefore, compared to the conventional structure in which the fuse housing parts 88a and 88b are separately formed and assembled with an inexpensive material having lower heat resistance than the fuse pedestal 22, the number of parts is reduced, and the fuse pedestal 22 is provided. The work of assembling the fuse housing portions 88a and 88b is not necessary, and the workability can be improved and the cost can be further reduced.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited by the specific description. For example, although an example in which a fuse is connected as the side component connecting portion has been shown, the side component connecting portion may be connected to another electrical component such as a relay or a connector. In that case, the shapes of the bus bars 26 and 28 and the terminal side connection portions 33 provided on the board terminals 30a to 30c may be tab shapes other than the tuning fork shape. The shape and number of the bus bars 26 and 28 and the board terminals 30a to 30c, the arrangement layout, and the like are arbitrarily changed depending on the required circuit configuration.

  Further, the common fastening member for fixing the fuse pedestal 22 as the terminal holding pedestal and the insulating plate 20 to the printed circuit board 16 is not limited to the fixing bolt 96 as illustrated, but a press-fit tab, other adhesive member, etc. Any material can be used as long as the terminal holding base can be fixed to the substrate 16 with a single fastening member via the insulating plate 20.

10: Electrical connection box, 16: Printed circuit board, 18: Fuse module (side part connection part), 20: Insulating plate, 22: Fuse base (terminal holding base), 26, 28: Bus bar, 30a to c: Board terminals , 31a to c: soldered portion, 33a, b: terminal side connecting portion, 50a, b: bus bar side connecting portion, 72: screw through hole, 86: screw hole, 88a, b: fuse housing portion (component housing portion) , 94: insertion hole, 96: fixing bolt (common fastening member)

Claims (2)

A side component connecting portion for connecting electrical components from the side to the printed circuit board is provided, and the side component connecting portion is bent in an L shape and soldered to the printed circuit board at one end. A board terminal having a soldered portion and a terminal side connection portion at the other end, a bus bar provided with a bus bar side connection portion, and the terminal side connection portion and the bus bar side connection portion. In an electrical junction box configured to include a terminal holding base and an insulating plate that is placed on the printed board and supports the bus bar,
The terminal holding base is placed on the printed board via the insulating plate, and the terminal holding base and the insulating plate are fixed to the printed board with a common fastening member ,
An electrical junction box, wherein the terminal holding base is integrally formed with a component housing portion to which the electrical component is mounted .   While the fixing bolt is used as the common fastening member, the insertion hole provided in the printed board and the screw through hole provided in the insulating plate are overlapped with the screw hole formed in the terminal holding base. 2. The terminal holding base and the insulating plate are fixed to the printed circuit board by aligning and inserting the fixing bolt into the screw hole through the insertion hole and the screw through hole. Electrical junction box.

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