JP5403360B2 - Electrical junction box - Google Patents

Description

  The present invention relates to an electrical connection box mounted on an automobile or the like, and relates to an electrical connection box in which terminals of electrical components are inserted into and extracted from board terminals of a printed circuit board housed inside.

  Conventionally, an electric junction box such as a junction box has been used for the purpose of improving the efficiency of electric wiring of automobiles and improving maintainability. A printed circuit board or the like constituting an internal circuit is accommodated inside the electrical connection box, and the other end side of the plurality of board terminals soldered to the conductive path of the printed circuit board is connected to the case of the electrical connection box. It protrudes to the outside through the insertion hole in the provided electrical component mounting portion. Then, by attaching electrical components such as connectors, fuses, and relays provided on the electric wire terminal to the electrical component mounting portion, the terminals of these electrical components are connected to the board terminals.

  By the way, when an electrical component is inserted into and removed from the electrical component mounting portion, a large external force is applied to the soldered portion of the board terminal due to the frictional resistance between the board terminal and the electrical component terminal. Therefore, for example, as disclosed in Japanese Patent Application Laid-Open No. 2007-259590 (Patent Document 1), the substrate terminal is mounted and held on a holder such as a base made of synthetic resin, and the holder is attached to the case of the printed circuit board and the electrical connection box. The structure which avoids that the external force at the time of electrical component insertion / extraction directly exerts on a soldering part is employ | adopted.

  However, in such an electrical junction box having a conventional structure, since a separate part called a holder is required, the number of parts increases, and it is necessary to form a specific holder for each type of connector, etc. Worsened and increased costs. In addition, since the holder is placed on the printed board, there is a problem in that the use area of the printed board is limited.

  In particular, with the increase in in-vehicle electrical components in recent years, the demand for higher density and miniaturization of electrical junction boxes is increasing, and for the purpose of effective use of printed circuit boards, direct printing without holding on a pedestal etc. The use of board terminals protruding on the board is increasing. With respect to such an upright board terminal, a load at the time of pulling out an electrical component is directly applied, and therefore an effective countermeasure has been desired.

JP 2007-259590 A

  The present invention has been made in the background of the above-mentioned circumstances, and the solution is to realize the effective use of the printed circuit board while reducing the load on the circuit board terminal when inserting / removing electrical components with a small number of components. An object of the present invention is to provide an electrical junction box having a novel structure.

In the first aspect of the present invention, a circuit body is laminated with an insulating plate sandwiched with respect to a printed circuit board, and a board terminal protrudes on the surface of the printed circuit board on the lamination side, In the electrical junction box in which the board terminal protrudes to the outside of the case through the insertion hole of the electrical component mounting portion formed in the case that accommodates the printed board and the circuit body, While a latching portion is formed on the surface, a pressing portion that presses the latching portion is integrally formed on the insulating plate , and the terminal length of the board terminal sandwiching the latching portion is formed. A connecting portion that rises on the surface of the printed circuit board and a soldered portion that is soldered to the conductive path of the printed circuit board are formed on both sides in the vertical direction, and the pressing portion is separated from the soldered portion. Further, in the printed circuit board, a plurality of the substrate terminals are arranged and arranged, and an opening window is formed at a position corresponding to the electrical component mounting portion of the case on the insulating plate. And the pressing portion that is overlapped with the respective locking portions of the plurality of substrate terminals is integrally formed with a crosspiece structure that extends linearly across the opposing edge portions of the opening window . Is a feature.

  According to the first aspect, when pulling out an electrical component such as a connector, the pressing portion integrally formed on the insulating plate presses the locking portion of the board terminal toward the printed circuit board, so that the pulling load when mounting the electrical component is Is dispersed in the insulating plate, and the load exerted on the soldering portion of the board terminal is alleviated.

  In particular, the pressing portion is merely superimposed on the locking portion of the board terminal, and does not protrude from the printed board. Therefore, it is possible to reliably reduce the load on the soldering portion of the board terminal when the electrical component is pulled out without limiting the use area of the mounting surface of the printed board.

In addition, since the pressing portion is formed by skillfully using an insulating plate disposed between other circuits stacked on the printed circuit board, the number of parts can be reduced. In addition, as a circuit body laminated | stacked on both sides of an insulating board with respect to a printed circuit board, arbitrary circuit bodies, such as a printed circuit board, a bus-bar circuit, and a single core wire circuit, may be employ | adopted.
According to the first aspect of the present invention, since the soldered portion is exposed without being covered with the pressing portion, visual confirmation of the soldered portion is facilitated.
Moreover, according to the 1st aspect of this invention, the extension part of a pressing part is connected to the peripheral part of an opening window by providing a pressing part ranging over the opposing edge part of an opening window, and a pressing part The rigidity is maintained. Thereby, a deformation | transformation of a press part can be prevented and the load to the board | substrate terminal at the time of electrical component insertion / extraction can be hold | maintained with sufficient intensity | strength. In particular, it can be advantageously employed when the board-side terminals are all constituted by board upright terminals.
According to a second aspect of the present invention, in the one described in the first aspect, a reinforcing portion that extends from a peripheral portion of the opening window and is connected to the pressing portion is integrally formed with the insulating plate together with the pressing portion. It is what has been done.

In the third aspect of the present invention , a circuit body is laminated with an insulating plate sandwiched between printed circuit boards, and a board terminal is projected on the surface of the printed circuit board on the lamination side, In the electrical junction box in which the board terminal protrudes to the outside of the case through the insertion hole of the electrical component mounting portion formed in the case that accommodates the printed board and the circuit body, While the latching part overlapped on the surface is formed, the pressing part for pressing the latching part is integrally formed on the insulating plate , and corresponds to the electrical component mounting part of the case on the insulating plate An opening window is formed at a position where the opening window extends from the periphery of the opening window into the opening window and the pressing portion is formed, while extending from the other part of the periphery of the opening window. Reinforcing portion which is connected to the pressing portion Te is, that it is integrally formed on the insulating plate together with the pressing portion, and wherein.

According to the third aspect, by integrally forming the reinforcing portion that extends from a peripheral portion different from the peripheral portion of the opening window from which the pressing portion extends, the rigidity of the pressing portion is maintained, and the deformation of the substrate terminal can be maintained. It can be stably blocked.
According to a fourth aspect of the present invention, in the device according to the third aspect, in the board terminal, on the both sides in the terminal length direction across the locking part, the connection part rising on the surface of the printed circuit board and the terminal A soldering portion soldered to the conductive path of the printed circuit board is formed, and the pressing portion is provided at a position separated from the soldering portion.
According to a fifth aspect of the present invention, in the one described in any one of the first to fourth aspects, a peripheral portion of the electrical component mounting portion in the case is overlapped with the insulating plate. is there.
According to the fifth aspect, since the peripheral portion of the electric component mounting portion is supported on the printed board by the insulating plate, the pushing force at the time of inserting the electric component is distributed to the insulating plate, and the soldering of the board terminal is performed. The load on the part is alleviated.

According to a sixth aspect of the present invention, in the one according to any one of the first to fifth aspects, the pressing portion is provided on the outer peripheral surface of the connection portion that rises on the surface of the printed board in the board terminal. It is provided with a gap.

  According to the sixth aspect, even when the pressing portion is deformed due to thermal expansion due to heat during soldering or use, the pressing portion can be prevented from coming into contact with the substrate terminal. As a result, it is possible to avoid the problem that the substrate terminal is twisted due to the contact of the pressing portion.

  According to the present invention, the locking portion of the board terminal that is superimposed on the printed board is pressed by the pressing portion that is integrally formed with the insulating plate. As a result, the printed circuit board can be effectively utilized while reducing the load on the board terminal when the electrical part such as the connector attached to the electrical part mounting part is pulled out from the electrical part mounting part with a small number of parts. .

The disassembled perspective view which shows the electrical-connection box as one Embodiment of this invention. The top view of the electric junction box shown in FIG. The principal part expanded sectional view of the III-III direction in FIG. The perspective view of the printed circuit board which comprises the electrical-connection box shown in FIG. FIG. 5 is a perspective view of a state where an insulating plate is placed on the printed board shown in FIG. 4. The top view which expands and shows the principal part in FIG. The top view which expands and shows the principal part in FIG. The top view which expands and shows the principal part in FIG. The top view which expands and shows the principal part in FIG.

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

1-3, the electrical junction box 10 as one Embodiment of this invention is shown. The electrical junction box 10 includes a case 11 configured by combining an upper case 11a and a lower case 11b. Inside the case 11 are a first printed circuit board 12 as a printed circuit board, an insulating plate 14 placed on the first printed circuit board 12, and a second printed circuit board 16 as a circuit body placed on the insulating plate 14. Are accommodated in a superposed state. In the following description, the vertical direction means the vertical direction in FIGS. 1 and 3 in principle. Further, in FIGS. 1 and 3, the upper case 11a is positioned on the lower side, b Ake over scan 11b is shown in a state which is positioned on the upper side.

  More specifically, the first printed circuit board 12 is configured such that a conductive path 21 is formed on the surface of the insulating base material 20 as shown in FIG. 3, and a plurality of male terminals 23 are provided as shown in FIG. Are mounted and electrical components such as the base connector 22 and the relay 24 are mounted. In FIG. 4, the conductive path 21 is not shown.

  The first printed circuit board 12 is also provided with a plurality of so-called upright board terminals 26 that are directly attached to the first printed circuit board 12 without being held by terminal pedestals or the like. Each of the plurality of substrate terminals 26 is formed by press-punching a conductive metal plate such as a copper alloy, and is a rectangular flat plate with a crank-shaped locking portion 28 provided at an intermediate portion in the longitudinal direction. (See FIG. 3). And the connection part 30 with the other party is provided in the longitudinal direction one side on both sides of the latching | locking part 28, and the soldering part 32 is provided in the other side.

  Such a board terminal 26 is attached to the first printed circuit board 12 in a state in which the locking portion 28 is superimposed on the surface of the first printed circuit board 12. In this state, the soldering part 32 is inserted through a through hole 34 formed in the first printed circuit board 12, and the connection part 30 stands up substantially vertically from the surface of the first printed circuit board 12. Then, the solder terminal 32 is soldered to the land 36 provided on the conductive path 21 formed on the back surface of the first printed circuit board 12, whereby the substrate terminal 26 is fixed to the first printed circuit board 12. It has become so.

  FIG. 5 shows an insulating plate 14 placed on the back side of the first printed circuit board 12. The insulating plate 14 is made of a synthetic resin and has a thick rectangular flat plate shape as a whole. The insulating plate 14 is provided with a substrate support portion 38 on which the second printed circuit board 16 is placed, and the thickness dimension of the substrate support portion 38 is made larger than that of other portions.

  The substrate support portion 38 of the insulating plate 14 is provided with a plurality of component housing holes 40 having a substantially constant rectangular cross-sectional shape and penetrating the insulating plate 14 in the thickness direction. Then, in a state where the insulating plate 14 is placed on the first printed board 12, the base connector 22 and the relay 24 mounted on the first printed board 12 are received in the component receiving holes 40. ing.

  In the insulating plate 14, a plurality of opening windows 42 a to 42 d, 44 a to 46 b, 46 a to 46 b are formed in a substantially rectangular cross section at the peripheral portion of the substrate support portion 38 (portions not covered by the second printed circuit board 16). It is formed penetrating in the direction. The plurality of opening windows 42a to 42d, 44a to 46b, 46a to 46b are provided at positions corresponding to later-described connector housing portions 92a to 92h provided on the lower case 11b. Then, in a state where the insulating plate 14 is placed on the first printed circuit board 12, the pedestal connector 22 protruding from the first printed circuit board 12 is inserted and disposed in the opening windows 42a to 42d. A pedestal connector 22 and a board terminal 26 projecting from the first printed circuit board 12 are respectively inserted into the windows 44a and 44b. Further, only a plurality of board terminals 26 protruding from the first printed circuit board 12 are inserted into the opening windows 46a and 46b.

  In particular, the opening windows 44a-b and the opening windows 46a-b through which the board terminals 26 are inserted are integrally provided with pressing portions 48, 50, 52 extending from the peripheral edge portions of the opening windows 44, 46 into the windows. Is formed. Hereinafter, specific shapes of the pressing portions 48, 50, and 52 pressed by the locking portions 28 of the upright board terminal 26 will be described in detail.

  In FIG. 6, the opening window 44 a in the insulating plate 14 placed on the first printed circuit board 12 is shown enlarged in a top view. The pedestal connector 22 is accommodated in a substantially central portion of the opening window 44a, and the alignment direction of the male terminals 23 arranged in two rows is parallel to the longitudinal direction (vertical direction in FIG. 6) of the opening window 44a. Is arranged. In the longitudinal direction of the opening window 44a, two board terminals 26 are provided on both sides of the base connector 22, and the width direction of each board terminal 26 is parallel to the longitudinal direction of the opening window 44a. It is arranged in a line so that

  The pair of side surfaces 58a and 58b opposed to each other in the longitudinal direction of the opening window 44a are respectively provided with pressing portions 48a and 48b extending in a straight line with a substantially constant rectangular cross section toward the inside of the opening window 44a. Each of the pressing portions 48a and 48b extends to the vicinity of the base connector 22 and extends across the two board terminals 26, respectively. The upper end surfaces of the pressing portions 48 a and 48 b are substantially flush with the surface of the insulating plate 14 and are smoothly connected, while the lower end surfaces of the pressing portions 48 a and 48 b are higher than the back surface of the insulating plate 14. Is located.

  Each of the pressing portions 48a and 48b having such a structure is overlapped with a locking portion 28 provided on the substrate terminal 26, as in the pressing portion 48b shown in FIG. 26 locking portions 28 are pressed. In this state, the side surfaces of the pressing portions 48 a and 48 b are opposed to the outer peripheral surface of the connection portion 30 of each board terminal 26 with a gap. As a result, even if the pressing portions 48a and 48b are thermally expanded, contact with each board terminal 26 is avoided.

  Further, the peripheral portion of the opening window 44a extends from the other part of the peripheral portion into the opening window 44a in a direction perpendicular to the extending direction of the pressing portions 48a and 48b, and is connected to the pressing portions 48a and 48b. Reinforcing portions 64a and 64b are integrally formed.

  Each of the reinforcing portions 64a and 64b has a pair of side surfaces 58c and 58d facing each other in the short side direction (left and right direction in FIG. 6) of the opening window 44a on the inner peripheral surface of the opening window 44b. ) With a substantially constant rectangular cross-sectional shape. The reinforcing portions 64a and 64b are connected to the pressing portions 48a and 48b between the substrate terminals 26 and 26, respectively. Thereby, the rigidity of the elongate press part 48a, 48b extended from the side surfaces 58a, 58b of the opening window 44a is ensured.

  The upper end surface of the reinforcing portion 64a is flush with the upper end surface of the pressing portion 48a and the insulating plate 14 and is smoothly continuous. The upper end surface of the reinforcing portion 64b is the same as the upper end surface of the pressing portion 48b and the insulating plate 14. It is flat and smoothly continuous. Although not explicitly shown in the drawing, the lower end surface of the reinforcing portion 64a is flush with the lower end surface of the pressing portion 48a and is connected smoothly, and the lower end surface of the reinforcing portion 64b is below the pressing portion 48b. It is flush with the end face and is connected smoothly.

  Next, FIG. 7 shows an enlarged view of the opening window 44b in the insulating plate 14 placed on the first printed circuit board 12 in a top view. The pedestal connector 22 is accommodated in a substantially central portion of the opening window 44b, and the alignment direction of the male terminals 23 arranged in two rows is parallel to the longitudinal direction (vertical direction in FIG. 7) of the opening window 44b. Is arranged. In the longitudinal direction of the opening window 44b, two board terminals 26 are aligned on one side (upper side in FIG. 7) of the base connector 22 so that the width direction thereof is parallel to the longitudinal direction of the opening window 44b. They are provided at the same position in the long side direction of the opening window 44b with an appropriate interval in the short side direction (left and right direction in FIG. 7) of the opening window 44b. On the other hand, two terminals project from the other side (lower side in FIG. 7) of the base connector 22 at a position corresponding to one side, and one of them is constituted by the board terminal 26 (right side in FIG. 7). The other is constituted by a bus bar terminal 87 supported by a bus bar insulating plate 86 described later.

  Similar to the opening window 44a, the pair of side surfaces 62a and 62b opposed to each other in the longitudinal direction of the opening window 44b have pressing portions 50a and 50b extending straight in a substantially constant rectangular cross section toward the inside of the opening window 44b. 50c is provided. Each pressing part 50a, 50b, 50c extends to the vicinity of the base connector 22 through the board terminal 26 over the locking part 28, respectively. The upper end surfaces of the pressing portions 50a, 50b, and 50c are substantially flush with the surface of the insulating plate 14 and are smoothly continuous, while the lower end surfaces of the pressing portions 50a, 50b, and 50c are It is located above the back side.

  Each of the pressing portions 50a to 50c having such a structure is overlapped with a locking portion 28 provided on each substrate terminal 26 at the lower end surface, similarly to the pressing portion 48b shown in FIG. The locking portion 28 of the board terminal 26 is pressed. And the side surface of each pressing part 50a-50c has opposed the outer peripheral surface of the connection part 30 of each board | substrate terminal 26 across the clearance gap.

  In addition, since each pressing part 50a-50c has suppressed the extension length from the side surfaces 62a and 62b of the opening window 44b small compared with the pressing parts 48a and 48b provided in the opening window 44a, There is no reinforcement by the reinforcement part.

  Next, in FIGS. 8 and 9, the opening windows 46 a and 46 b in the insulating plate 14 placed on the first printed circuit board 12 are respectively shown in an enlarged view in a top view. Note that the opening window 46a and the opening window 46b have the same basic structure, except that the number of board terminals 26 to be inserted is different, and therefore the opening window 46a will be described in detail below. About 46b, the description is abbreviate | omitted by attaching | subjecting the same figure number.

  A plurality of substrate terminals 26 are inserted into the opening window 46a. The plurality of substrate terminals 26 are arranged in two rows extending in the longitudinal direction of the opening window 46a (vertical direction in FIG. 8), and the width direction of each substrate terminal 26 is parallel to the longitudinal direction of the opening window 46a. It is arranged to become.

  The opening window 46a is provided with two bar-shaped pressing portions 52a and 52b extending across the edges facing each other in the long side direction of the opening window 46a. Each of the pressing portions 52a and 52b has a shape that extends straightly with a substantially constant rectangular cross-section between a pair of side surfaces 68a and 68b facing each other in the long side direction of the opening window 46a on the inner peripheral surface of the opening window 46a. The upper end surfaces of the pressing portions 52 a and 52 b are flush with the surface of the insulating plate 14 and are smoothly continuous with the surface of the insulating plate 14.

  The lower end surface of the pressing portion 52a is located above the back surface of the insulating plate 14, and, like the pressing portion 48b shown in FIG. 3, the locking portion provided on each board terminal 26 forming one row. 28 is superimposed. Thereby, the pressing part 52a presses the locking part 28 provided on each board terminal 26 forming one row.

  The lower end surface of the pressing portion 52b is located on the front side of the back surface of the insulating plate 14, and, like the pressing portion 48b shown in FIG. 3, the latch provided on each board terminal 26 forming the other row. Overlaid on the portion 28. Thereby, the pressing part 52b is pressing the latching | locking part 28 provided in each board | substrate terminal 26 which forms the other row | line | column.

  Further, similarly to the pressing portion 48b shown in FIG. 3, the pressing portions 52a and 52b are spaced apart from the connection portions 30 of the respective board terminals 26 protruding upward from the locking portions 28 where the lower end surfaces thereof are overlapped. It is arranged.

  The second printed circuit board 16 is placed on the substrate support portion 38 of the insulating plate 14 having such a structure. The second printed circuit board 16 has a structure in which a conductive path (not shown) is formed on at least one surface of the insulating base material 78, and a base connector 80 is mounted thereon.

  The first printed circuit board 12 in which the insulating plate 14 and the second printed circuit board 16 are laminated as described above is accommodated in the case 11. That is, the lower case 11b is overlaid from the second printed circuit board 16 side, and the upper case 11a is overlaid from the first printed circuit board 12 side, but is abutted with each other at the periphery of each opening and fixed to each other. Thereby, the electrical connection box 10 is configured in which the first printed circuit board 12 in which the insulating plate 14 and the second printed circuit board 16 are stacked and disposed is accommodated in the case 11.

  As shown in FIG. 3, a bus bar in which a bus bar 85 for forming a power supply circuit to the first printed board 12, the second printed board 16 and the like is assembled between the first printed board 12 and the upper case 11a. Insulating plates 86 for use are stacked. One of the bus bar terminals 87 provided at the edge of the bus bar 85 protrudes from the back surface of the first printed circuit board 12 through a through hole 88 formed in the first printed circuit board 12 (see FIG. 4).

  The lower case 11b is provided with a plurality of connector housing portions 90 and 92 as electrical component mounting portions having a peripheral wall protruding from the outer surface. The connector housing portions 90 a to 90 c are provided at positions corresponding to the base connector 80 mounted on the second printed circuit board 16. The connector housing portions 92 a to 92 h are provided at positions corresponding to the opening windows 42, 44, 46 formed in the insulating plate 14.

  Terminal insertion holes 94 are formed in the bottom walls of the connector housing portions 90a to 90c, and the male terminals 96 provided on the base connector 80 project toward the outside of the case 11 through the terminal insertion holes 94. Yes. Terminal insertion holes 98 are formed in the bottom walls of the connector housing portions 92 a to 92 h, and the male terminals 23 and the board terminals 26 provided on the base connector 22 are moved to the outside of the case 11 through the terminal insertion holes 98. Protrusively.

  Further, as shown in FIG. 3, the bottom wall of the connector accommodating portion 92e provided at a position corresponding to the opening window 44a extends over the entire periphery with respect to the peripheral edge portion of the opening window 44a in the insulating plate 14. It is superimposed. Although not shown, the bottom walls of the connector housing portions 92d, 92g, and 92h provided at the positions corresponding to the opening windows 44b, 46a, and 46b are the same as the connector housing portion 92e. Are overlapped over the entire periphery with respect to the peripheral portions of the opening windows 44b, 46a, 46b.

  An external connector provided at a terminal of an external wire (not shown) is inserted into such connector housing portions 90 and 92. Thereby, an external electric wire is connected to the male terminal 96 projecting in the connector housing portion 90, the male terminal 23 projecting in the connector housing portion 92, and the board terminal 26. .

  In the electrical junction box 10 as described above, the pressing portions 48, 50, 52 are superimposed on the locking portion 28 provided on the board terminal 26, so that the connector housing portions 92d, 92e, 92g, 92h The pulling load exerted on the board terminal 26 when the inserted external connector is pulled out is distributed to the insulating plate 14. Thereby, the load exerted on the soldered portion of the board terminal 26 when the external connector is pulled out from the connector housing portions 92d, 92e, 92g, and 92h can be reduced. As a result, it is possible to prevent the occurrence of defects such as cracks in the soldered portion of the board terminal 26.

  Since the bottom walls of the connector housing portions 92d, 92e, 92g, and 92h are overlapped with the pressing portions 48, 50, and 52 that are overlapped with the locking portion 28 of the board terminal 26, the pressing portions 48, 50, and 52 The rigidity can be increased. Therefore, it is possible to further reduce the load exerted on the soldered portion of the board terminal 26 when the external connector is pulled out from the connector housing portions 92d, 92e, 92g, and 92h.

  Since the pressing portions 48, 50, and 52 are not placed on the first printed circuit board 12 so as to protrude greatly, the use area of the first printed circuit board 12 is not limited, and the first printed circuit board 12 is effectively used. Can be used.

  Because the pressing portions 48, 50, 52 are formed on the first printed circuit board 12 by skillfully using the insulating plate 14 required for mounting another circuit body such as the second printed circuit board 16, etc. There is no need to separately provide components for reducing the load exerted on the upright board terminal 26.

  Since the bottom walls of the connector housing portions 92d, 92e, 92g, and 92h are overlapped with the peripheral portions of the opening windows 44a, 44b, 46a, and 46b formed in the insulating plate 14, the external connectors are connected to the connector housing portions 92d and 92e. , 92g, 92h, the insertion load is dispersed in the insulating plate 14. Thereby, the load exerted on the soldered portion of the board terminal 26 when the external connector is inserted into the connector housing portions 92d, 92e, 92g, and 92h can be reduced.

  Since the pressing portions 48, 50, 52 are superimposed on the intermediate portion in the extending direction of the locking portion 28, the soldered portion 32 of the board terminal 26 is not covered with the pressing portions 48, 50, 52. Therefore, it becomes easy to confirm the soldered portion of the board terminal 26.

  Since a gap is formed between the connection part 30 of the board terminal 26 and the pressing parts 48, 50, 52, even if the pressing parts 48, 50, 52 are deformed by heat generated during soldering or use, the pressing part It is possible to avoid contact of the connection portions 30 of 48, 50, and 52. As a result, it is possible to prevent the occurrence of problems such as twisting of the substrate terminal 26 due to the contact of the pressing portions 48, 50, 52 with the connection portion 30.

With the reinforcing portion 64a is connected with respect to the pressing portion 48 a, since the reinforcing portion 64b is articulated with respect to the pressing portion 48 b, it is possible to increase the rigidity of the pressing portion 48 a, 48 b . Therefore, it is possible to further reduce the load exerted on the soldered portion of the board terminal 26 when the external connector is pulled out from the connector housing portion 92e.

Since the pressing portions 52a and 52b extend across the edge portions facing each other in the long side direction of the opening windows 46a and 46b, the rigidity of the pressing portions 52a and 52b can be increased. Therefore, it is possible to further reduce the load exerted on the soldered portion of the board terminal 26 when the external connector is pulled out from the connector housing portions 92g and 92h.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited by the specific description. For example, the pressing portion does not need to be in contact with the locking portion from the beginning as in the embodiment. When the pulling load is applied and the substrate terminal is deformed or displaced, the pressing portion may contact the locking portion. Even in this case, it is possible to prevent the substrate terminal from being further deformed or displaced by the pressing portion coming into contact with the locking portion.

  Of course, it is also possible to connect a reinforcement part to the press parts 52a and 52b provided in the opening windows 46a and 46b.

10: Electrical connection box , 11: Case , 12: First printed board (printed board), 14: Insulating board, 16: Second printed board (circuit body ), 26: Board terminal, 28: Locking part, 30: Connection part, 32: Soldering part, 44: Opening window, 46: Opening window, 48: Pressing part, 50: Pressing part, 52: Pressing part, 54: Pressing part, 64: Reinforcing part, 92 : Connector housing part ( Electrical component mounting part)

Claims (6)

A circuit body is stacked on an insulating board with respect to the printed circuit board, and a board terminal protrudes from the surface of the printed circuit board on the side of the stacked circuit body, and accommodates the printed circuit board and the circuit body. In the electrical junction box in which the board terminal protrudes outside the case through the insertion hole of the electrical component mounting part formed in the case,
A locking portion that is superimposed on the surface of the printed circuit board is formed at the base end portion of the substrate terminal, while a pressing portion that presses the locking portion in the insulating plate is integrally formed , and
In the board terminal, on both sides of the terminal length direction across the locking part, a connection part rising on the surface of the printed board and a soldering part soldered to the conductive path of the printed board are formed. The pressing portion is provided apart from the soldering portion, and
In the printed circuit board, a plurality of the board terminals are arranged and arranged, while an opening window is formed at a position corresponding to the electrical component mounting portion of the case on the insulating plate, and the plurality of board terminals The electrical connection box , wherein the pressing portion superimposed on each of the locking portions is integrally formed with a crosspiece structure extending linearly across the opposing edge portions of the opening window . The electrical junction box according to claim 1, wherein a reinforcing portion that extends from a peripheral portion of the opening window and is connected to the pressing portion is integrally formed with the insulating plate together with the pressing portion. A circuit body is stacked on an insulating board with respect to the printed circuit board, and a board terminal protrudes from the surface of the printed circuit board on the side of the stacked circuit body, and accommodates the printed circuit board and the circuit body. In the electrical junction box in which the board terminal protrudes outside the case through the insertion hole of the electrical component mounting part formed in the case,
A locking portion that is superimposed on the surface of the printed circuit board is formed at the base end portion of the substrate terminal, while a pressing portion that presses the locking portion in the insulating plate is integrally formed, and
An opening window is formed at a position corresponding to the electrical component mounting portion of the case on the insulating plate, and the pressing portion is formed by extending from the peripheral edge of the opening window into the opening window, An electrical junction box , wherein a reinforcing portion extending from another portion of the peripheral edge of the opening window and connected to the pressing portion is integrally formed with the insulating plate together with the pressing portion . In the board terminal, on both sides of the terminal length direction across the locking part, a connection part rising on the surface of the printed board and a soldering part soldered to the conductive path of the printed board are formed. The electrical connection box according to claim 3 , wherein the pressing portion is provided apart from the soldering portion. The electrical junction box according to any one of claims 1 to 4, wherein a peripheral portion of the electrical component mounting portion in the case is overlaid on the insulating plate.   The electrical connection box according to any one of claims 1 to 5, wherein the pressing portion is provided with a gap with respect to an outer peripheral surface of a connection portion that rises on a surface of the printed board in the board terminal.

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