JP2017199630A - Bus bar and electric connection box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bus bar which enables reduction of influence of stress caused by rotational force of screwing.SOLUTION: A bus bar 50 includes: a power supply member attachment part 51; a reinforcement part 53; and an output part. An attachment hole 51a for attracting another member with a screw is formed at the power supply member attachment part 51. Bending is formed in the reinforcement part 53. The output part is connected with the power supply member attachment part 51 through the reinforcement part 53 and outputs electric power to the outside. The reinforcement part 53 is formed with a first surface part 53a, a third surface part which is disposed so as to face the first surface part 53a and be spaced away from the first surface part 53a when viewed in a screw insertion direction, and a second surface part 53b which connects the first surface part 53a with the third surface part. The output part disposed in a direction different from that of the third surface part is connected with the third surface part.SELECTED DRAWING: Figure 2

Description

  The present invention mainly relates to a bus bar attached by a fixture such as a screw.

  2. Description of the Related Art Conventionally, a bus bar that supplies power to an electrical component arranged on a substrate or the like and transmits an electrical signal is known. In this type of bus bar, a screw-type bus bar that is attached to another member using an attachment such as a bolt is known. Patent Document 1 discloses this screw-type bus bar.

  The bus bar of Patent Document 1 is connected to a board disposed inside the switch box, and supplies power to the electrical components on the board. The bus bar is formed with an insertion hole for inserting a screw. By inserting and tightening screws into the insertion holes of the bus bar, the bus bar is attached to the terminal of the connection partner.

Japanese Patent Application Laid-Open No. 2006-10259

  Here, when the bus bar is attached to another member using screws, stress is applied to the bus bar due to the rotational force of the screws. However, Patent Document 1 does not describe any stress applied to the bus bar due to the rotational force of screwing.

  The present invention has been made in view of the above circumstances, and a main object thereof is to provide a bus bar in which the influence of stress due to the rotational force of screwing is reduced.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

  According to a first aspect of the present invention, a bus bar having the following configuration is provided. That is, this bus bar includes an attachment portion, a reinforcement portion, and an output portion. An attachment hole for attaching another member with a screw is formed in the attachment portion. The reinforcement portion is bent. The output part is connected to the attachment part via the reinforcing part, and outputs an electric signal or electric power to the outside. The reinforcing portion includes a first surface portion, a third surface portion disposed so as to face the first surface portion with a gap when viewed in the screw insertion direction, the first surface portion, and the And a second surface portion connecting the third surface portion. The output unit arranged in a different direction from the third surface portion is connected to the third surface portion.

  Thereby, by providing the reinforcement part of said structure, since the influence of the stress applied to a bus bar by the rotational force of screwing can be reduced, damage or a deformation | transformation of a bus bar can be prevented.

  In the bus bar, it is preferable that the first surface portion has a longer length in the insertion direction of the screw than the second surface portion and the third surface portion.

  Thereby, since the stress applied to the bus bar at the time of screwing can be dispersed, damage or deformation of the bus bar can be prevented more reliably.

  In the bus bar, the output portion preferably has a smaller width than the third surface portion of the reinforcing portion.

  Thereby, since the width | variety of the 3rd surface part of a reinforcement part is larger than an output part, the electric energy which can be supplied can be increased. From another viewpoint, since the width of the output portion is smaller than that of the third surface portion of the reinforcing portion, the positions of the bus bar and other components are less likely to interfere with each other.

  In the bus bar, it is preferable that the thickness direction of the reinforcing portion and the insertion direction of the screw are perpendicular to each other.

  As described above, when the thickness direction of the reinforcing portion and the screw insertion direction are perpendicular to each other, the bus bar is easily damaged or deformed because the bus bar is bent by the rotational force of the screwing. Therefore, the effect of the present invention that the bus bar is hardly damaged or deformed when screwed can be utilized more effectively.

  According to the 2nd viewpoint of this invention, the electrical junction box of the following structures is provided. That is, the electrical junction box includes the bus bar, the substrate, and the case. The output portion of the bus bar is connected to the substrate. The case covers at least a part of the bus bar and the substrate.

  As a result, it is possible to realize an electrical junction box having a configuration in which the bus bar is hardly damaged or deformed when screwed.

  In the electrical junction box, it is preferable that a first contact portion that contacts the second surface portion of the reinforcing portion is formed on the substrate or the member that supports the substrate.

  Thereby, damage or a deformation | transformation of a bus-bar (especially 2nd surface part of a reinforcement part) can be prevented more reliably.

  In the electrical junction box, it is preferable that a first contact portion that contacts the third surface portion of the reinforcing portion is formed on the substrate or the member that supports the substrate.

  Thereby, damage or a deformation | transformation of a bus-bar (especially 3rd surface part of a reinforcement part) can be prevented more reliably.

  In the electrical junction box, the case preferably includes a second contact portion that contacts the bus bar when viewed in the screw insertion direction.

  Thereby, since the case is in contact with the bus bar, damage or deformation of the bus bar can be more reliably prevented.

  In the electrical junction box, it is preferable that a part of the bus bar is exposed from the case.

  Thereby, the heat of a bus bar can be dissipated efficiently. Therefore, when the bus bar outputs power to the outside, a large amount of power can be supplied.

  In the electrical junction box, the case is preferably slidable with respect to the bus bar and the substrate.

  Thereby, a case can be attached or detached easily.

  In the electrical junction box, it is preferable that the bus bar is disposed on the end side of the substrate.

  Thereby, since a bus bar does not become obstructive easily, an electrical component can be arranged efficiently.

  In the electrical junction box, the open portion of the space surrounded by the first surface portion, the second surface portion, and the third surface portion of the reinforcing portion is positioned on the side opposite to the edge side of the substrate. The bus bar is preferably arranged.

  As a result, the open portion of the space surrounded by the first surface portion, the second surface portion, and the third surface portion can be directed to the center side of the substrate. The space inside the box can be used effectively.

  In the electrical junction box, it is preferable that the attachment portion has a plate shape, and the insertion direction of the screw and the thickness direction of the substrate are perpendicular to each other.

  Thereby, since the screw is inserted in the direction along the surface of the substrate, the size of the electrical junction box in the thickness direction can be reduced as compared with the configuration in which the screw insertion direction and the thickness direction of the substrate are parallel.

The perspective view which shows the electrical junction box which concerns on one Embodiment of this invention. The perspective view which shows the electric junction box of the state which removed the case. The perspective view which shows the shape of a bus-bar and a 1st contact part. The perspective view which shows the shape of a bus bar. AA sectional view seen in the insertion direction of a screw.

  Next, embodiments of the present invention will be described with reference to the drawings.

  An electrical junction box 1 shown in FIG. 1 is configured as a junction box disposed in an engine room of an automobile, for example. As shown in FIGS. 1 and 2, the electrical junction box 1 includes a case 10, a first base portion 20, a second base portion 30, and a substrate (electronic circuit substrate) 41. In addition, electrical components 42, terminals 43, and bus bars 50 are attached to the substrate 41.

  In the following description, the thickness direction of the substrate 41 is referred to as “substrate thickness direction”, the longitudinal direction of the substrate 41 (that is, the longitudinal direction of the electrical junction box 1) is referred to as “substrate longitudinal direction”, and insertion of screws for attaching the bus bar 50 is inserted. The direction is referred to as “screw insertion direction”. These three directions are orthogonal to each other in the present embodiment.

  The case 10 is a member that covers the substrate 41, the electrical component 42, the terminal 43, and the bus bar 50 (specifically, covers at least a part of these members). The case 10 is configured to be slidable with respect to the first base portion 20 and the second base portion 30, and the case 10 can be attached and detached by sliding the case 10. As shown in FIG. 1, the case 10 includes a first terminal connection portion 11, a second terminal connection portion 12, and a bus bar attachment portion 13.

  The 1st terminal connection part 11 is located in the edge part of the one side (screw insertion origin side) of a screw insertion direction. The 1st terminal connection part 11 is a frame-shaped part, and the terminal 43 is arrange | positioned inside. Thereby, the connector of the electrical junction box 1 is comprised. A mating connector is connected to the connector of the electrical junction box 1. The 2nd terminal connection part 12 is located in the other side (screw insertion destination side) of a screw insertion direction. The 2nd terminal connection part 12 is a frame-shaped part, and the terminal 43 is arrange | positioned inside. Thereby, the connector of the electrical junction box 1 is comprised. A mating connector is connected to the connector of the electrical junction box 1. A bus bar 50 is attached to the bus bar attaching portion 13 (details will be described later).

  As shown in FIG. 2, the first base portion 20 includes a first terminal insertion portion 21, a first substrate attachment portion 22, and a first contact portion 24.

  The 1st terminal insertion part 21 is arrange | positioned over the whole board | substrate longitudinal direction in the edge part of the insertion origin side of a screw insertion direction. A terminal 43 attached to the substrate 41 is inserted into the first terminal insertion portion 21. The terminal 43 inserted into the first terminal insertion portion 21 is located inside the first terminal connection portion 11. The terminal 43 inserted in the 1st terminal connection part 11 is connected to the terminal of the other party connector.

  The first substrate mounting portion 22 is arranged at two corners of the end portion on the insertion source side in the screw insertion direction among the four corners of the substrate 41 (only one is shown in FIG. 2). The first board mounting portion 22 has an insertion hole into which a fixture such as a screw can be inserted. The screw or the like is inserted into the insertion hole of the first board mounting portion 22 and the insertion hole formed in the substrate 41. The substrate 41 can be attached to the first base portion 20 by tightening.

  The first contact portion 24 reinforces the bus bar 50 by contacting the bus bar 50 so that the bus bar 50 is not damaged or deformed when the bus bar 50 is attached (details will be described later).

  As shown in FIG. 2, the second base portion 30 includes a second terminal insertion portion 31, a second substrate attachment portion 32, and a first contact portion 24.

  The second terminal insertion portion 31 is disposed at the end on the insertion destination side in the screw insertion direction. A terminal 43 attached to the substrate 41 is inserted into the second terminal insertion portion 31. The terminal 43 inserted into the second terminal insertion portion 31 is connected to the terminal of the mating connector in the same manner as described above.

  The second substrate mounting portion 32 is disposed at two corners of the end on the insertion destination side in the screw insertion direction among the four corners of the substrate 41 (only one is shown in FIG. 2). The second board attachment portion 32 is formed with an insertion hole into which a fixture such as a screw can be inserted. The screw or the like is inserted into the insertion hole of the first board attachment portion 22 and the insertion hole formed in the substrate 41. The substrate 41 can be attached to the second base portion 30 by tightening.

  The bus bar 50 is formed by bending a plurality of conductive plate-like members. The bus bar 50 outputs electric power supplied from another member to the substrate 41 (specifically, the electric component 42). As shown in FIGS. 2 to 4, the bus bar 50 includes a power supply member attachment portion (attachment portion) 51, a reinforcement portion 53, an engagement protrusion 54, and an output portion 56.

  The power supply member mounting portion 51 is disposed so that the thickness direction coincides with the screw insertion direction. Another member (power supply member) for supplying power is attached to the power supply member attachment portion 51. Specifically, an attachment hole 51a is formed in the power supply member attachment portion 51, and another member for supplying electric power is attached to the attachment hole 51a by using an attachment such as a screw. The output part 56 is connected to the power supply member attaching part 51 through the reinforcing part 53. As a result, the power transmitted to the power supply member mounting portion 51 is output from the output portion 56 via the reinforcing portion 53.

  The reinforcing portion 53 is a portion that reinforces the bus bar 50. The reinforcing portion 53 includes a first surface portion (first portion) 53a, a second surface portion (second portion) 53b, and a third surface portion (third portion) 53c. The first surface portion 53a to the third surface portion 53c are formed in a plate shape.

  The first surface portion 53a is arranged so that the thickness direction matches the substrate thickness direction. The first surface portion 53 a is connected to one end portion in the substrate thickness direction (the end portion on the side close to the substrate 41) of the power supply member attachment portion 51. Further, the power supply member attaching portion 51 is connected to the end portion in the longitudinal direction of the first surface portion 53a. The bus bar 50 is bent so that the thickness direction of the power supply member mounting portion 51 and the first surface portion 53a changes by approximately 90 degrees. Further, the first surface portion 53a is formed with a protruding portion 50a that protrudes in the substrate longitudinal direction (direction perpendicular to the thickness direction of both the power supply member attaching portion 51 and the first surface portion 53a).

  The second surface portion 53b is arranged so that the thickness direction coincides with the substrate longitudinal direction. The second surface portion 53b is connected to one end portion of the first surface portion 53a in the substrate longitudinal direction (the end portion on the side close to the through groove 13c). The bus bar 50 is bent so that the thickness direction of the first surface portion 53a and the second surface portion 53b changes by approximately 90 degrees.

  The 3rd surface part 53c is arrange | positioned so that the thickness direction may correspond with a substrate thickness direction. Accordingly, when viewed in the screw insertion direction (FIG. 5), the first surface portion 53a and the third surface portion 53c are arranged so as to face each other with a gap therebetween. The third surface portion 53c is connected to one end portion (the end portion closer to the substrate 41) in the substrate thickness direction of the second surface portion 53b. The bus bar 50 is bent so that the thickness directions of the second surface portion 53b and the third surface portion 53c change by approximately 90 degrees. Further, the third surface portion 53c is formed with an engagement protrusion 54 that protrudes toward the insertion source side in the screw insertion direction.

  Thus, since the reinforcement part 53 is comprised by the substantially U shape, the intensity | strength of the bus-bar 50 can be improved. The length of the first surface portion 53a in the screw insertion direction is longer than that of the second surface portion 53b and the third surface portion 53c. The lengths of the second surface portion 53b and the third surface portion 53c in the screw insertion direction are the same, but they may be different. Further, since the open portion of the space surrounded by the first surface portion 53a to the third surface portion 53c faces the inner side in the longitudinal direction of the substrate (that is, the side opposite to the end side (end portion) of the substrate 41), Since the electrical component 42 can also be positioned, the space inside the electrical junction box 1 can be effectively utilized.

  The output unit 56 is arranged so that the thickness direction matches the substrate longitudinal direction. The output portion 56 is connected to the other end portion of the third surface portion 53c in the longitudinal direction of the substrate (the end portion on the side far from the through groove 13c). The bus bar 50 is bent so that the thickness direction of the third surface portion 53c and the output portion 56 changes by approximately 90 degrees.

  Here, in the bus bar 50, the length in the direction in which the exposed opposing side surfaces are connected is referred to as the width. For example, since the upper side surface and the lower side surface of FIG. 4 are exposed in the output unit 56, the length in the direction in which they are connected (that is, the screw insertion direction) is the width. Further, since the upper side surface and the lower side surface of FIG. 4 are also exposed in the third surface portion 53c, the length in the direction in which they are connected (that is, the screw insertion direction) is the width. The width of the third surface portion 53 c is larger than the width of the output portion 56. Therefore, since the area of the cross section perpendicular to the power transmission direction can be increased, the amount of power that can be supplied to the substrate 41 can be increased. If it demonstrates from another viewpoint, since the width | variety of the output part 56 is smaller than the 3rd surface part 53c, the bus-bar 50, the electrical component 42, etc. become difficult to interfere. Note that the width of the third surface portion 53c and the width of the output portion 56 may be the same.

  An output projection 56a and a reinforcing projection 56b are formed at one end of the output portion 56 in the substrate thickness direction (the end near the substrate 41). The output protrusion 56a is inserted into the through hole of the substrate 41, and outputs power to the substrate 41 (specifically, a power supply circuit formed on the substrate 41). The reinforcing protrusion 56 b is not inserted into the substrate 41 and contacts the surface of the substrate 41.

  A large stress is applied to the bus bar 50 having a configuration in which other members are attached with screws as in the present embodiment due to the rotational force at the time of screwing. In particular, the portion of the bus bar 50 whose thickness direction is perpendicular to the screw insertion direction (specifically, the reinforcing portion 53 and the output portion 56) has a force in a direction to bend the plate-like portion by the rotational force at the time of screwing. Therefore, the portion is easily damaged or deformed. In this respect, in this embodiment, since the reinforcing portion 53 configured in a substantially U shape by including at least two bends is formed on the bus bar 50, the influence of the stress applied to the bus bar 50 by the screwing rotational force is reduced. Therefore, damage or deformation of the bus bar 50 can be prevented. Furthermore, since the length of the first surface portion 53a in the screw insertion direction is long, the stress applied to the first surface portion 53a of the bus bar 50 during screwing can be dispersed, so that damage or deformation of the bus bar 50 can be prevented more reliably.

  Next, the positional relationship between the bus bar 50 and other members, particularly the structure for further reinforcing the bus bar 50 will be described in detail.

  First, the positional relationship between the bus bar 50 and the case 10 will be described. As shown in FIGS. 1 and 5, the case 10 is formed with a through hole 13 a, a second contact portion 13 b, a through groove 13 c, and an insertion portion 13 d as the bus bar mounting portion 13. The bus bar attaching portion 13 is a surface (side surface, surface) perpendicular to the substrate thickness direction of the case 10 and is formed in the vicinity of the end portion in the substrate longitudinal direction. The bus bar attaching portion 13 may be formed on another surface of the case 10, for example, a surface (another side surface) perpendicular to the substrate longitudinal direction.

  The through hole 13a is formed in the vicinity of the end on the insertion source side in the screw insertion direction. The through hole 13a is a rectangular through hole, and is configured such that the depth direction of the hole coincides with the screw insertion direction. When the case 10 is slid along the screw insertion direction, the boundary portion between the power supply member attaching portion 51 and the first surface portion 53a comes into contact with the edge portion of the through hole 13a. Thereby, the slide of the case 10 can be stopped at an appropriate position. Moreover, since the through hole 13a can expose the attachment hole 51a of the power supply member attachment portion 51, another member can be attached to the bus bar 50 after the case 10 is attached.

  The 2nd contact part 13b is plate shape, and is arrange | positioned so that the thickness direction may correspond with a board | substrate thickness direction. The 2nd contact part 13b contacts the 1st surface part 53a, as shown in FIG.1 and FIG.5. Thereby, since the bus bar 50 (especially 1st surface part 53a) can be reinforced, damage or a deformation | transformation of the bus bar 50 can be prevented.

  The through groove 13c is a groove formed below the through hole 13a so that the longitudinal direction coincides with the screw insertion direction. As shown in FIGS. 1 and 5, the second surface portion 53 b of the bus bar 50 enters the through groove 13 c. Since the through groove 13c is formed from the lower end of the case 10 (the end on the insertion destination side in the screw insertion direction) to the mounting position of the bus bar 50, even if the bus bar 50 is bent, The case 10 can be slid while maintaining the state where a part of the first surface portion 53a is in contact with the case 10 (second contact portion 13b) while exposing the first surface portion 53a). Specifically, the surface of the first surface portion 53a facing the substrate 41 is in surface contact with the second contact portion 13b.

  The insertion portion 13d is a groove that is formed in parallel with the through groove 13c and that the depth direction coincides with the longitudinal direction of the substrate (the thickness direction of the output portion 56). As shown in FIG. 5, the first surface portion 53a is inserted into the insertion portion 13d. Specifically, the end portion (end side) opposite to the end portion (end side) connected to the second surface portion 53b of the first surface portion 53a is inserted into the insertion portion 13d. In addition, since the protrusion part 50a mentioned above is also inserted in 13 d of insertion parts, the insertion part 13d is formed in the depth which the said protrusion part 50a can insert. Thereby, it is possible to prevent the bus bar 50 from being detached from the case 10 during the sliding of the case 10.

  Next, the positional relationship between the bus bar 50 and the first base portion 20 will be described. As shown in FIG. 3, the first contact portion 24 of the first base portion 20 is formed with a slide groove 24a, an outer contact portion 24b, and an inner contact portion 24c.

  The slide groove 24a is a groove formed so that the longitudinal direction coincides with the screw insertion direction. As shown in FIG. 5, a protrusion formed inside the case 10 is inserted into the slide groove 24a. Accordingly, the case 10 can be slid with respect to the first base portion 20.

  As shown in FIG. 3, the outer contact portion 24 b is an L-shaped member, and includes a portion whose longitudinal direction matches the substrate longitudinal direction and a portion whose longitudinal direction matches the substrate thickness direction. . As shown in FIG. 5, the outer contact portion 24 b is disposed so as to contact the outer surface of the bus bar 50. Specifically, the outer contact portion 24b is in contact with the outer surface (substrate 41 side) of the third surface portion 53c and the outer surface (end portion side in the substrate longitudinal direction) of the second surface portion 53b. Thereby, since the bus bar 50 (especially the reinforcement part 53) can be reinforced, damage or a deformation | transformation of the bus bar 50 can be prevented.

  As shown in FIG. 3, the inner contact portion 24 c is a substantially U-shaped member, and includes two portions whose longitudinal direction matches the substrate longitudinal direction and a portion connecting the two portions. The As shown in FIG. 5, the inner contact portion 24 c is disposed so as to contact the inner surface of the bus bar 50. Specifically, the inner contact portion 24c contacts the inner surface of the third surface portion 53c (opposite side of the substrate 41) and the inner surface of the second surface portion 53b (opposite side of the end in the substrate longitudinal direction). doing. Thus, in this embodiment, since the bus bar 50 is sandwiched between the outer contact portion 24b and the inner contact portion 24c, damage or deformation of the bus bar 50 can be prevented more reliably.

  Further, an unillustrated engagement hole into which the engagement protrusion 54 can be inserted is formed between the slide groove 24a and the outer contact portion 24b. The engagement protrusion 54 is press-fitted into the engagement hole. Thereby, the bus bar 50 can be fixed to the first base portion 20.

  As described above, the bus bar 50 according to the present embodiment includes the power supply member attaching portion 51, the reinforcing portion 53, and the output portion 56. The power supply member attachment portion 51 is formed with an attachment hole 51a for attaching another member with a screw. The reinforcing portion 53 is bent. The output part 56 is connected to the power supply member attaching part 51 via the reinforcing part 53 and outputs electric power to the outside. The reinforcing portion 53 includes a first surface portion 53a, a third surface portion 53c disposed so as to face the first surface portion 53a with an interval when viewed in the screw insertion direction, and a first surface portion 53a. A second surface portion 53b that connects the third surface portion 53c is formed. An output unit 56 arranged in a direction different from that of the third surface portion 53c is connected to the third surface portion 53c.

  Thereby, by providing the reinforcing portion 53 having the above-described configuration, it is possible to reduce the influence of the stress applied to the bus bar 50 and the substrate 41 by the rotational force of the screwing, so that the bus bar 50 can be prevented from being damaged or deformed.

  In the bus bar 50 of the present embodiment, the first surface portion 53a is longer in the screw insertion direction than the second surface portion 53b and the third surface portion 53c.

  Thereby, since the stress applied to the bus bar 50 during screwing can be dispersed, damage or deformation of the bus bar 50 can be prevented more reliably.

  Further, in the bus bar 50 of the present embodiment, the output part 56 is smaller in width than the third surface part 53 c of the reinforcing part 53.

  Thereby, since the width | variety of the 3rd surface part 53c is larger than the output part 56, the electric energy which can be supplied can be increased. From another viewpoint, since the width of the output portion 56 is smaller than that of the third surface portion 53c, the positions of the bus bar 50 and other components are less likely to interfere with each other.

  In addition, the electrical junction box 1 of the present embodiment includes a bus bar 50, a substrate 41, and a case 10. The output unit 56 of the bus bar 50 is connected to the substrate 41. The case 10 covers at least a part of the bus bar 50 and the substrate 41.

  Thereby, the electrical junction box 1 having a configuration in which the bus bar 50 is hardly damaged or deformed when screwed can be realized.

  In the electrical junction box 1 of the present embodiment, the first base portion 20 that supports the substrate 41 has the second surface portion 53b and the third surface portion of the reinforcing portion 53 of the bus bar 50 when viewed in the screw insertion direction. A first contact portion 24 that contacts 53c is formed.

  Thereby, since the 1st contact part 24 is contacting the reinforcement part 53, damage or deformation | transformation of the bus-bar 50 can be prevented more reliably.

  Moreover, in the electrical junction box 1 of this embodiment, the case 10 includes a second contact portion 13b that contacts the bus bar 50 (specifically, the reinforcing portion 53) when viewed in the screw insertion direction.

  Thereby, since case 10 is contacting bus bar 50, damage or deformation of bus bar 50 can be prevented more certainly.

  In the electrical junction box 1 of the present embodiment, a part of the bus bar 50 is exposed from the case 10.

  Thereby, the heat of the bus bar 50 can be dissipated efficiently. Therefore, when the bus bar 50 outputs power to the outside, a large amount of power can be supplied.

  Further, in the electrical junction box 1 of the present embodiment, the case 10 can slide with respect to the bus bar 50 and the substrate 41.

  Thereby, case 10 can be attached or detached easily.

  Further, in the electrical junction box 1 of the present embodiment, the bus bar 50 is arranged on the end side of the substrate 41 when viewed in the thickness direction of the substrate 41.

  Thereby, since the bus bar 50 does not easily get in the way, the electric component 42 can be arranged efficiently.

  In the electrical junction box 1 of the present embodiment, the open portion of the space surrounded by the first surface portion 53a, the second surface portion 53b, and the third surface portion 53c of the reinforcing portion 53 is on the side opposite to the end side of the substrate 41. Bus bar 50 is arranged to be located.

  As a result, the space surrounded by the first surface portion 53a, the second surface portion 53b, and the third surface portion 53c can be directed toward the center side of the substrate 41. The space inside the box 1 can be used effectively.

  In the electrical junction box 1 of the present embodiment, the power supply member mounting portion 51 is plate-shaped, and the screw insertion direction and the thickness direction of the substrate 41 are perpendicular to each other.

  Thereby, since a screw is inserted in a direction along the surface of the substrate 41, the size of the electrical junction box 1 in the thickness direction can be reduced as compared with a configuration in which the screw insertion direction and the thickness direction of the substrate 41 are parallel. .

  The preferred embodiment of the present invention has been described above, but the above configuration can be modified as follows, for example.

  In the above embodiment, the bus bar 50 outputs power to the substrate 41, but may alternatively be configured to output an electrical signal. In this case, an electric signal is supplied to the bus bar 50 from another member attached to the power supply member attaching portion 51. Moreover, electric power may be supplied to the bus bar 50 through a screw attached to the attachment hole 51a, or the screw may only fix a member and electric power may be supplied to the bus bar 50 from another part.

  In the above embodiment, the slide groove 24a is formed in the first contact portion 24, but the slide groove 24a may be formed in another member. Further, the first contact portion 24 may not be formed on the first base portion 20, and may be a separate member from the first base portion 20. For example, the first contact portion 24 may be formed on the second base portion 30 or the substrate 41. Moreover, although the 1st contact part 24 is contacting both the 2nd surface part 53b and the 3rd surface part 53c of the reinforcement part 53, you may contact only any one.

  In the above embodiment, the bending formed on the bus bar 50 is bent so that the angle changes abruptly (so that a crease is formed), but may be bent so as to be bent. Therefore, the reinforcing portion 53 may be formed by bending the plate material with a large curvature radius only once to make a substantially U shape.

  In the above embodiment, the first surface portion 53a and the third surface portion 53c of the reinforcing portion 53 are parallel to each other, but may not be parallel as long as the surfaces face each other when viewed in the screw insertion direction.

  The case 10 may cover not all of the bus bar 50 but the whole. Moreover, you may cover so that members other than the bus-bar 50 may be exposed. Moreover, the attachment method of case 10 is arbitrary and may be comprised by the container part and lid part which can be attached or detached.

  The position, shape, and orientation of the members constituting the electrical junction box 1 are arbitrary and can be changed as appropriate. For example, the screw insertion direction and the substrate thickness direction may be parallel. Further, the bus bar 50 may be arranged at the central portion instead of the end portion in the substrate longitudinal direction. Moreover, the open part of the reinforcement part 53 may face the edge part of a board | substrate longitudinal direction.

  Although the example which applies this invention to the electrical junction box 1 arrange | positioned at the engine room of a motor vehicle was shown above, the electric junction box arrange | positioned other than the engine room of a motor vehicle, and the electric junction box used other than a motor vehicle The present invention can also be applied to.

DESCRIPTION OF SYMBOLS 1 Electrical connection box 10 Case 13b 2nd contact part 20 1st base part 24 1st contact part 24a Slide groove 24b Outer contact part 24c Inner contact part 30 2nd base part 41 Board | substrate 42 Electrical component 43 Terminal 50 Bus bar 51 Power supply member Mounting part (Mounting part)
53 Reinforcement part 54 Engagement protrusion 56 Output part 56a Output protrusion 56b Reinforcement protrusion

Claims (13)

An attachment part in which an attachment hole for attaching another member with a screw is formed;
A reinforcement part in which a bend is formed;
Connected to the mounting part via the reinforcing part, and an output part for outputting an electric signal or electric power to the outside;
With
In the reinforcing part,
A first surface portion;
A third surface portion disposed so as to face the first surface portion with an interval when viewed in the insertion direction of the screw;
A second surface portion connecting the first surface portion and the third surface portion;
Is formed,
The bus bar, wherein the output portion arranged in a direction different from the third surface portion is connected to the third surface portion. The bus bar according to claim 1,
The bus bar according to claim 1, wherein the first surface portion has a longer length in the insertion direction of the screw than the second surface portion and the third surface portion. The bus bar according to claim 1 or 2,
The output bar has a smaller width than the third surface portion of the reinforcing portion. A bus bar according to any one of claims 1 to 3,
A bus bar, wherein a thickness direction of the reinforcing portion and an insertion direction of the screw are perpendicular to each other. A bus bar according to any one of claims 1 to 4,
A substrate to which the output part of the bus bar is connected;
A case covering at least part of the bus bar and the substrate;
An electrical junction box comprising: The electrical junction box according to claim 5,
The electrical connection box, wherein the substrate or a member supporting the substrate is formed with a first contact portion that contacts the second surface portion of the reinforcing portion. The electrical junction box according to claim 5,
The electrical connection box, wherein the substrate or a member supporting the substrate is formed with a first contact portion that contacts the third surface portion of the reinforcing portion. The electrical junction box according to any one of claims 5 to 7,
The said case is provided with the 2nd contact part which contacts the said bus bar when it sees in the insertion direction of the said screw, The electrical junction box characterized by the above-mentioned. The electrical junction box according to any one of claims 5 to 8,
A part of the bus bar is exposed from the case. The electrical junction box according to any one of claims 5 to 9,
The electrical connection box, wherein the case is slidable with respect to the bus bar and the substrate. The electrical junction box according to any one of claims 5 to 10,
The electrical connection box, wherein the bus bar is disposed on an end side of the substrate. The electrical junction box according to any one of claims 5 to 11,
The bus bar is arranged so that an open portion of a space surrounded by the first surface portion, the second surface portion, and the third surface portion of the reinforcing portion is located on the side opposite to the edge side of the substrate. An electrical junction box characterized by. The electrical junction box according to any one of claims 5 to 12,
The electrical connection box, wherein the attachment portion is plate-shaped, and the insertion direction of the screw and the thickness direction of the substrate are perpendicular to each other.

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