Electrical junction box

Abstract

To provide an electrical junction box that is less prone to busbar vibration. [Solution] The electrical junction box comprises a first member having a busbar, a first rib that abuts against the busbar, and a locking portion, and a second member having a holding portion that maintains the locked state by the locking portion and a support portion that is in contact with the back surface of the busbar, wherein the first rib abuts against the surface of the busbar, and together with the support portion, the first rib holds the busbar by sandwiching it.

Description

Technical Field

[0001] The present disclosure relates to an electrical connection box.

Background Art

[0002] A structure for holding a bus bar incorporated in an electrical connection box while sandwiching it is known.

[0003] For example, Patent Document 1 discloses "a bus bar plate having a positive terminal and a negative terminal, and a plurality of bus bars each having a screw portion formed on one of these terminals are arranged in series while corresponding the positive terminal and the negative terminal, and a control board connected to these bus bars is integrally provided; a cylindrical shape, a positive terminal and a negative terminal are coaxially provided at one end, and among these terminals, a plurality of cells each having a screw portion threadably engageable with the screw portion formed on the terminal of the same pole as the terminal having the screw portion formed on the bus bar are provided, and as each screw portion of each cell is threadably engaged with each screw portion of each bus bar, a connection form in which terminals of different poles from the terminals having these screw portions formed thereon are brought into contact with each other is adopted to connect a plurality of cells in series through each bus bar."

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Patent Document 1 discloses that in the above-mentioned cell module structure, "the busbar plate comprises a first plate disposed on the mounting side of the cell and a second plate that holds the busbar together with the first plate, and the first plate is characterized in that it receives a reaction force from the busbar plate generated by the screwing torque when the threaded portion of the cell is screwed into the threaded portion of the busbar, and also has an engaging portion that engages with the busbar to prevent the busbar from coming off." However, if the above-mentioned cell module structure has a gap between at least one of the first plate and the second plate and the busbar, the busbar may vibrate.

[0006] One embodiment aims to provide an electrical junction box in which the busbar is less prone to vibration. [Means for solving the problem]

[0007] An electrical junction box in one embodiment comprises a first member having a busbar, a first rib that abuts against the busbar, and a locking portion, and a second member having a holding portion that maintains the locked state by the locking portion, and a support portion that is in contact with the back surface of the busbar, wherein the first rib abuts against the surface of the busbar, and the first rib, together with the support portion, holds the busbar by sandwiching it. [Effects of the Invention]

[0008] According to one embodiment, the busbar is less prone to vibration. [Brief explanation of the drawing]

[0009] [Figure 1] An exploded view showing the electrical junction box of the embodiment. [Figure 2] A perspective view showing the electronic components of the embodiment. [Figure 3] Perspective view I showing an electrical junction box of an embodiment. [Figure 4] Perspective view II showing the electrical junction box of the embodiment. [Figure 5] A perspective view showing the second member of the embodiment. [Figure 6] A perspective view showing the second member and busbar of the embodiment. [Figure 7] A plan view showing the electrical junction box of the embodiment. [Figure 8] Cross-sectional view AA showing the electrical junction box of the embodiment. [Figure 9] A magnified view of the CC section in Figure 7. [Modes for carrying out the invention]

[0010] The embodiments of this disclosure will be described below with reference to the drawings. The drawings and specific configurations used in each embodiment should not be used to interpret the disclosure. In all drawings, identical or corresponding components are denoted by the same reference numerals, and common descriptions are omitted.

[0011] In this disclosure, the +X direction, -X direction, +Y direction, -Y direction, +Z direction, and -Z direction are defined as follows: The +Z direction is the direction in which the surface of the first busbar faces. The -Z direction is the direction opposite to the +Z direction. Hereinafter, when the +Z direction and -Z direction are not distinguished, they will simply be referred to as the "Z direction". The +Y direction is the direction in which the extension extends from one end of the first connection in the busbar. The -Y direction is the direction opposite to the +Y direction. Hereinafter, when the +Y direction and -Y direction are not distinguished, they will simply be referred to as the "Y direction". The +X direction and -X direction are directions that intersect (e.g., are orthogonal to) the Y direction and the Z direction. The +X direction is the direction in which the projection of the locking part faces. The -X direction is the direction opposite to the +X direction. Hereinafter, when the +X direction and -X direction are not distinguished, they will simply be referred to as the "X direction".

[0012] In the following, the X and Y directions may be referred to as the "horizontal direction" if they are not distinguished. In the following, the Z direction may be referred to as the "vertical direction." However, these expressions are for the sake of explanation and do not limit the installation orientation of the electrical junction box 100.

[0013] <First Embodiment> Hereinafter, the electrical connection box 100 of an embodiment will be described with reference to the drawings. As shown in FIG. 1, the electrical connection box 100 includes an electronic component 1, a bus bar 2, a first member 3, and a second member 4. For example, the electrical connection box 100 may be mounted on a mobility unit such as an electric vehicle.

[0014] (Configuration of Electronic Component) The electronic component 1 is, for example, a connector, a fuse, a relay (e.g., a mechanical relay or a semiconductor relay), a capacitor, a branching component, various sensors (e.g., a current sensor or a voltage sensor), an electronic control unit, or an electronic component unit formed by unitizing two or more of these. Note that the type of the electronic component 1 is not limited to the above examples. The electronic component 1 is, for example, a heat-generating component that generates heat when energized. Hereinafter, a fuse will be cited as an example of the electronic component 1.

[0015] As shown in FIGS. 1 to 2, the electronic component 1 is an electronic component in which two terminals 13 are separately arranged at both horizontal ends. The electronic component 1 has, for example, a case 11, a component main body portion 12, and a plurality of terminals 13.

[0016] (Case) The case 11 is an outer member that forms most of the outer shape of the electronic component 1. The case 11 is made of, for example, synthetic resin and has insulating properties. The case 11 houses the component main body portion 12. Note that the case 11 and the component main body portion 12 may be integrally formed.

[0017] (Component Main Body Portion) The component main body portion 12 is a portion that performs the main function of the electronic component 1. For example, when the electronic component 1 is a fuse, the component main body portion 12 includes a fusing portion that is blown when an overcurrent flows. When the electronic component 1 is a relay, the component main body portion 12 includes a switching portion (e.g., a contact portion) that switches between a conductive state and a non-conductive state. For example, when the electronic component 1 is a capacitor, the component main body portion 12 includes a portion that accumulates electric charge.

[0018] (Terminal) Terminal 13 is an electrical connection part exposed to the outside of the case 11. Terminal 13 is electrically connected to the component body 12 inside the case 11. In this embodiment, the electronic component 1 includes terminals 13A and terminal 13B as a plurality of terminals 13. One of terminals 13A and terminal 13B is the positive terminal. The other of terminals 13A and terminal 13B is the negative terminal. For example, in this embodiment, the first connection part and terminal 13A are electrically connected.

[0019] In this embodiment, the terminals are arranged separately at both ends of the electronic component 1 in the horizontal direction (e.g., the Y direction). Each terminal 13 has a mounting hole 13h into which a fastening member 71 (e.g., a screw or bolt), described later, is attached. The mounting hole 13h opens in the Z direction. For example, the mounting hole 13h of the electronic component 1 is a through hole through which the fastening member 71 passes.

[0020] The arrangement of terminals 13 of electronic component 1 is not limited to the above example. For example, multiple terminals 13 may be arranged side by side at one end of electronic component 1. For example, a relay is an example of an electronic component in which multiple terminals 13 are arranged side by side at one end of electronic component 1.

[0021] In this embodiment, the electrical junction box 100 suppresses vibrations of the busbar 2, and consequently, suppresses vibrations of the electronic component 1 electrically connected to the busbar 2. Vibrations of the electronic component 1 can occur when vibrations of the busbar 2 are transmitted to it.

[0022] (Bus bar configuration) As shown again in Figure 1, the busbar 2 is a wiring member (electrical connection member) that electrically connects multiple electrical components. The busbar 2 is made of metal (for example, copper or a copper alloy) and is conductive. In this embodiment, the busbar 2 is electrically connected to terminal 13A of the electronic component 1. When the electronic component 1 is a fuse, the current flowing through the busbar 2 is monitored. At least a portion of the busbar 2 (for example, the extended portion 22) is supported by the support portion 41 of the second member 4.

[0023] The busbar 2 has, for example, a first connecting portion 21, an extension portion 22, a second connecting portion 23, and an extension portion 24. In this embodiment, each of the first connecting portion 21, the extension portion 22, the second connecting portion 23, and the extension portion 24 is plate-shaped. That is, each of the first connecting portion 21, the extension portion 22, the second connecting portion 23, and the extension portion 24 has a flattened rectangular cross-sectional shape.

[0024] (First connection point) The first connection portion 21 is the part that electrically connects the busbar 2 and the electronic component 1. The first connection portion 21 is provided at one end of the busbar 2. The first connection portion 21 has an insertion hole 21h through which a fastening member 71 (e.g., a screw or bolt) passes. After fastening with the fastening member 71, the mating part 81 (e.g., a nut) comes into contact with the back surface 2BS of the busbar 2. The first connection portion 21 is an example of a "fastening portion".

[0025] (extension part) The extension portion 22 is a portion that extends in a predetermined direction and is provided between the first connecting portion 21 and the second connecting portion 23. For example, in this embodiment, the extension portion 22 extends from the first connecting portion 21 along the Y direction.

[0026] (Second connection point) The second connection portion 23 is the part that electrically connects the electronic component 1, which is electrically connected to the busbar 2, to other components or devices. The second connection portion 23 is provided at one end of the busbar 2. The second connection portion 23 has an insertion hole 23h through which a fastening member 72 (e.g., a screw or bolt) passes. After fastening with the fastening member 72, the mating part 82 (e.g., a nut) comes into contact with the back surface 2BS of the busbar 2.

[0027] (extension) The extension 24 is a portion of the busbar 2 that has been extended for the purpose of increasing the heat dissipation area and / or the heat capacity for heat storage (heat absorption). The extension 24 is a portion that is not used for electrical connections. In this embodiment, the extension 24 is connected to the first connection 21 and extends along the vertical direction.

[0028] Furthermore, in this embodiment, the extension portion 24 extends so as to intersect the direction in which the extension portion 22 extends. The rotation of the busbar 2 is suppressed when the extension portion 24 extending in this direction contacts the second member 4. Loosening of the fastening member 71 (e.g., a screw or bolt) and / or fastening member 72 (e.g., a screw or bolt) is suppressed. The mating parts 81 (e.g., a nut) and 82 (e.g., a nut) are housed in the recess 41R described later.

[0029] The busbar 2 has an opening 2EX corresponding to the projection 43. When fastening members 71 and / or 72 to the busbar 2, the busbar 2 may rotate in the same direction as the tightening torque due to the sliding of the fastening members relative to the fastened members. The rotation of the busbar 2 is suppressed when the opening 2EX is inserted through the projection 43. By suppressing the rotation of the busbar 2, loosening of the fastening members 71 (e.g., screws or bolts) and / or 72 (e.g., screws or bolts) is suppressed.

[0030] Furthermore, the busbar 2 has a notch 2NO corresponding to the projection 44. When fastening members 71 and / or 72 to the busbar 2, the busbar 2 may rotate in the same direction as the tightening torque due to the sliding of the fastening members against the fastened members. The rotation of the busbar 2 is suppressed when the projection 44 contacts the notch. By suppressing the rotation of the busbar 2, loosening of the fastening members 71 (e.g., screws or bolts) and / or 72 (e.g., screws or bolts) is suppressed.

[0031] (Composition of the first component) As shown in Figures 1, 3, and 4, the first member 3 is a member that protects the busbar 2 from the outside. In this embodiment, the first member 3 has an opening on a part of the surface facing the +Z direction, but is not limited to this.

[0032] The first member 3 is lockable to the second member 4. By locking, the first member 3 protects the busbar 2. The first member 3, like the second member 4 described later, is made of, for example, synthetic resin and has insulating properties. The first member 3 comprises a cover portion 31, at least one or more ribs 32 (rib 32A, rib 32C, rib 32D), and a locking portion 33. The ribs 32 are located on the side of a predetermined direction when viewed from the fastening members (fastening members 71, fastening members 72). For example, rib 32A is located on the +Y direction side when viewed from the fastening members (fastening members 71, fastening members 72). Rib 32A is an example of the "first rib" and / or the "third rib". For example, rib 32C is located on the +X direction side when viewed from the fastening members (fastening members 71, fastening members 72). Rib 32C is an example of the "first rib" and / or the "third rib". For example, rib 32D is located on the -X side when viewed from the fastening members (fastening members 71 and 72). Rib 32D is an example of a "first rib" and / or a "third rib".

[0033] (Cover section) The cover portion 31 protects the busbar 2. In this embodiment, the cover portion 31 has an opening on a part of the surface facing the +Z direction, but is not limited to this. The cover portion 31 forms the main part of the first member 3. The support portion 41 forms the base (insulating base) of the second member 4. As shown in Figure 1, the cover portion 31 has a curved surface 31c. The curved surface 31c forms a step between itself and the upper surface of the cover portion 31. When the first member 3 and the second member 4 are locked together, the curved surface 31c is adjacent to the stepped surface 41c, which will be described later, in the Z direction. The curved surface 31c, like the stepped surface 41c, has a surface that follows a part of the outer shape of the electronic component 1. When the electronic component 1 is arranged along the curved surface 31c, the enlargement of the body of the electrical connection box 100 is suppressed.

[0034] (rib) As shown in Figures 3 and 4, the ribs 32 (ribs 32A, ribs 32C, and ribs 32D) abut against the surface 2S of the busbar 2. When the first member 3 and the second member 4 are locked together, the ribs 32 press against the busbar 2. The ribs 32 are adjacent to the first connecting portion 21, which is the fastening portion. For example, in this embodiment, ribs 32C and ribs 32D are positioned in the X direction so as to sandwich the first connecting portion 21. Also, since the electronic component 1 is located in the Y direction, rib 32A is positioned on the +Y direction side so as not to interfere with the electronic component 1. That is, in this embodiment, the ribs 32 are positioned so as to surround the fastening portion within a range that does not interfere with the electronic component 1. The number of ribs 32A, ribs 32C, and ribs 32D at each position is set as appropriate. When the first member 3 is provided with multiple ribs 32, the wider the distance between one rib 32 and the other rib 32, the easier it is to suppress vibrations of the busbar 2.

[0035] Furthermore, the rib 32 may be adjacent to the second connecting portion 23, which is a fastening portion.

[0036] (Locking part) The locking portion 33 is used to lock the first member 3 and the second member 4. An example of the locking portion 33 is a snap-fit ​​claw. The snap-fit ​​claw has an arm portion 33AR and a protruding portion 33PR which is a part of the arm portion. In this embodiment, the arm portion 33AR is formed by providing a slit SL (see Figures 1 and 3) in a part of the first member 3. The protruding portion 33PR protrudes from the arm portion 33AR in a direction intersecting the direction in which the arm portion 33AR extends. In this embodiment, the protruding portion 33PR protrudes toward the second member 4 in the X direction and locks into the retaining portion 42 described later. When the protruding portion 33PR is pressed when locking into the retaining portion 42, the arm portion 33AR oscillates in a predetermined direction.

[0037] (Structure of the second component) As shown in Figures 5 and 6, the second member 4 is a support member that supports the bus bar 2. The second member 4 is in contact with the back surface 2BS of the bus bar 2. The second member 4 is made of, for example, synthetic resin and has insulating properties. The second member 4 includes, for example, a support portion 41, a holding portion 42, a projection portion 43, and a projection portion 44.

[0038] (Support part) The support portion 41 is a plate-shaped part within the second member 4. The support portion 41 is plate-shaped and oriented horizontally. The support portion 41 forms the main part of the second member 4. The support portion 41 forms the base (insulating base) of the second member 4.

[0039] The support portion 41 has a first surface 41a, a second surface 41b, and a stepped surface 41c. The first surface 41a is a surface oriented in the +Z direction. The first surface 41a is a plane that aligns with the horizontal direction. The stepped surface 41c is adjacent to the first surface 41a and forms a step between them. The stepped surface 41c has a surface that follows a part of the outer shape of the electronic component 1.

[0040] As shown in Figure 5, the support portion 41 on the first surface 41a is subjected to multiple weight-reducing cutouts. During the weight-reducing process, at least one rib 41L is provided on the support portion 41. The rib 41L abuts against the back surface 2BS of the busbar 2. When the first member 3 and the second member 4 are locked together, the rib 41L presses against the busbar 2. The rib 41L is an example of a "second rib". The second surface 41b is located on the opposite side from the first surface 41a. The second surface 41b is a surface oriented in the -Z direction. The second surface 41b is a plane that aligns with the horizontal direction. The second surface 41b is the mounting surface when the mobility unit is mounted.

[0041] (recess) On the support portion 41 on the first surface 41a, recesses 41R (recesses 41R1 and 41R2) for accommodating mating parts 81 and / or mating parts 82 are provided on the support portion 41. When viewed from the Z direction, the recesses 41R have an outer shape corresponding to the shape of the mating parts 81 and / or mating parts 82 to be accommodated. Recess 41R1 has an outer shape corresponding to the mating part 81 to be accommodated (e.g., a nut). Recess 41R2 has an outer shape corresponding to the mating part 82 to be accommodated (e.g., a nut). When fastening the fastening member 71, the mating part 81 moves in the Z direction due to the rotation prevention of the mating part 81 by the recess 41R1. When fastened, the mating part 81 comes into contact with the back surface 2BS of the bus bar 2. When fastening the fastening member 72, the mating part 82 moves in the Z direction due to the rotation prevention of the mating part 82 by the recess 41R2. When fastened, the mating part 82 comes into contact with the back surface 2BS of the bus bar 2.

[0042] (holding part) The holding portion 42 is used to maintain the locked state between the first member 3 and the second member 4 by the locking portion 33. An example of the holding portion 42 is the protruding portion 42PR. The protruding portion 42PR protrudes from the second member 4 in a direction intersecting the direction in which the arm portion 33AR extends. In this embodiment, the protruding portion 42PR protrudes toward the first member 3 in the X direction. When the first member 3 and the second member 4 are locked together, the protruding portion 42PR causes the arm portion 33AR to oscillate in a predetermined direction.

[0043] (protrusion) As shown in Figure 6, the projection 43 serves as a guide for the busbar 2 during assembly. As described above, the presence of the opening 2EX in the busbar 2 effectively suppresses its rotation. This suppression of the busbar 2's rotation prevents loosening of the fastening members 71 (e.g., screws or bolts) and / or 72 (e.g., screws or bolts).

[0044] (protrusion) As shown in Figure 6, the projection 44 serves as a guide for the terminal 13A during assembly. As described above, the presence of the notch 2NO in the busbar 2 effectively suppresses the rotation of the busbar 2. By suppressing the rotation of the busbar 2, loosening of the fastening member 71 (e.g., a screw or bolt) and / or fastening member 72 (e.g., a screw or bolt) is suppressed.

[0045] (Bus bar status) Figures 7 to 10 show the first member 3 and the second member 4 in the locked position. The state of the busbar 2 when the first member 3 and the second member 4 are locked together will be described in detail below.

[0046] As shown in Figure 8, when the first member 3 and the second member 4 are locked together, the first member 3 moves in the SL direction. At this time, the inclined surface of the holding part 42 (projection part 42PR) presses the projection part 33PR from the inside to the outside of the first member 3. The arm part 33AR elastically deforms in the direction in which the projection part 33PR is pressed. Next, after the projection part 33PR overcomes the inclined surface, the elastic deformation of the arm part 33AR returns to normal, and the first member 3 and the second member 4 are locked together.

[0047] As shown in Figures 8-9, when the first member 3 and the second member 4 are locked together, the ribs 32 (ribs 32A, ribs 32C, and ribs 32D) contact the surface 2S of the busbar 2, and together with the support portion 41, the ribs 32 hold the busbar 2 between them. In this embodiment, due to weight reduction in the support portion 41, the support portion 41 has at least one or more ribs 41L. When the first member 3 and the second member 4 are locked together, the ribs 32 contact the surface 2S of the busbar 2, and together with the ribs 41L, the ribs 32 hold the busbar 2 between them.

[0048] (Mechanism of Action and Effects) In this embodiment, the electrical junction box 100 comprises a bus bar 2, a first member 3 having first ribs (ribs 32A, ribs 32C, ribs 32D) that abut against the bus bar 2, and a locking portion 33, and a second member 4 having a holding portion 42 that maintains the locked state by the locking portion 33, and a support portion 41 that is in contact with the back surface 2BS of the bus bar 2. The first ribs (ribs 32A, ribs 32C, ribs 32D) abut against the surface 2S of the bus bar 2, and together with the support portion 41, the first ribs (ribs 32A, ribs 32C, ribs 32D) hold the bus bar 2 between them. With this configuration, the first ribs (ribs 32A, ribs 32C, and ribs 32D) contact the surface 2S of the busbar 2, and together with the support portion 41, the first ribs (ribs 32A, ribs 32C, and ribs 32D) hold the busbar 2 in place. A portion of the busbar 2 is pressed against the first ribs (ribs 32A, ribs 32C, and ribs 32D), making the busbar 2 less prone to vibration. Therefore, in the electrical junction box 100 according to this embodiment, the busbar is less prone to vibration.

[0049] Furthermore, because the member in contact with the busbar 2 is the rib portion (rib 32A, rib 32C, rib 32D) of the first member 3, the surface pressure on the busbar 2 can be increased compared to the case where the entire surface 2S of the busbar 2 is pressed by the first member 3. Therefore, in the electrical junction box 100 according to this embodiment, the busbar is less prone to vibration.

[0050] In this embodiment, the support portion 41 further includes a second rib (rib 41L) that abuts against the busbar 2, and the first ribs (ribs 32A, ribs 32C, ribs 32D) together with the second rib (rib 41L) hold the busbar 2 between them. With this configuration, the support portion 41 has ribs (ribs 41L), which allows for greater surface pressure on the busbar 2 compared to the case where the second member 4 presses against the entire back surface 2BS of the busbar 2. Therefore, in the electrical junction box 100 according to this embodiment, the busbar is less prone to vibration.

[0051] In this embodiment, the electrical junction box 100 further comprises an electronic component 1, the busbar 2 has a fastening portion (first connection portion 21), the electronic component 1 is fastened to the fastening portion (first connection portion 21), and the first ribs (ribs 32A, ribs 32C, ribs 32D) are adjacent to the fastening portion (first connection portion 21). With this configuration, the busbar 2 is pressed around the fastening portion (first connection portion 21) to which the electronic component 1 is fastened, which makes it easier to suppress vibrations transmitted to the electronic component 1 via the busbar 2.

[0052] Furthermore, depending on the difference in fastening force of the fastening member 71 that fastens at the fastening portion (first connection portion 21) (for example, the difference in axial force depending on the size of the bolt), the fastening may loosen due to vibration of the busbar 2. On the other hand, if the first ribs (ribs 32A, ribs 32C, and ribs 32D) are arranged adjacent to the fastening portion (first connection portion 21), vibration of the busbar 2 is more easily suppressed, and the fastening of the fastening member 71 is less likely to loosen.

[0053] In this embodiment, the first member 3 further comprises a third rib (rib 32A, rib 32C, rib 32D) that contacts the busbar 2. With this configuration, increasing the number of ribs 32 that contact the busbar 2 makes the busbar 2 less prone to vibration.

[0054] (Variation 1) The support portion 41 may have, for example, a housing portion that holds a part of the busbar 2. The housing portion is a recess provided on the first surface 41a of the support portion 41 and recessed in the first direction (-Z direction). When viewed from the Z direction, the housing portion has an outer shape corresponding to the shape of the busbar 2 to be housed. In this modified example, "the housing portion is recessed in the first direction (-Z direction)" may include cases where a part of the total length of the housing portion is recessed in the -Z direction. For example, in the above embodiment, the housing portion may hold the extended portion 22 of the busbar 2.

[0055] (Modification 2) The busbar 2 may be bent if it has multiple extensions 22 that extend in a predetermined direction.

[0056] One embodiment and its variations have been described above. However, the embodiments and variations are not limited to the examples described above. For example, the embodiments and variations may be implemented in combination with each other. [Explanation of Symbols]

[0057] 100 Electrical junction box 1 Electronic components 11 cases 12. Main body of the component 13 terminals 13A terminal 13B terminal 13h mounting holes 2 bus bars 2BS (back side) 2S surface 21 First connection section 21h Through hole 22 Stretching section 23 Second connection section 23h Through hole 24 Extension 2EX aperture 3. First component 31 Cover section 31c curved surface 32 Ribs 32A Rib 32C Rib 32D Rib 33 Locking part 33AR arm 33PR protrusion 4. Second member 41 Support part 41a 1st page 41b 2nd side 41c Step surface 41L Rib 41R recess 41R1 recess 41R2 recess 42 Holding part 42PR protrusion 43 Protrusion 44 Protrusion 71 Fastening members 72 Fastening members 81 Opponent 82 The other party SL Slit

Claims

1. Bus bar and, A first member comprising a first rib that abuts against the busbar and a locking portion, A second member comprising a holding portion that maintains the locked state by the aforementioned locking portion, and a support portion that is in contact with the back surface of the busbar, Equipped with, The first rib contacts the surface of the busbar, and together with the support portion, the first rib holds the busbar between its legs. Electrical junction box.

2. The support portion further comprises a second rib that abuts against the busbar, The first rib, together with the second rib, holds the busbar in place. The electrical junction box according to claim 1.

3. Equipped with additional electronic components, The bus bar has a fastening portion, The aforementioned electronic component is fastened to the fastening portion, The first rib is adjacent to the fastening portion, An electrical junction box according to claim 1 or claim 2.

4. The first member further comprises a third rib that abuts against the busbar. An electrical junction box according to claim 1 or claim 2.

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