Electrical Junction Boxes and Wire Harnesses

Abstract

To improve versatility.SOLUTION: An electric connection box 1 comprises an electric connection box body 2, a support member 3, and an external electronic component block 4. An internal electronic component ID is stored inside the electric connection box body 2. The support member 3 is provided outside the electric connection box body 2. The external electronic component block 4 provided to be attachable / detachable to / from the support member 3 outside the electric connection box body 2 installs a relay D1 or fuses D2, D3 as external electronic component OD. Further, the electric connection box 1 provided to be attachable / detachable to / from the support member 3 outside the electric connection box body 2 comprises a connector block 5 with which a connector C provided at a terminal of a wiring material W can engage. The support member 3 comprises a locking part 35 for locking one of the external electronic component block 4 and the connector block 5 in an attachable / detachable manner.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an electrical junction box and a wire harness. [Background technology]

[0002] A vehicle such as an automobile is provided with a wire harness having an electric circuit that electrically connects various electric devices mounted on the vehicle to a power source. An electric junction box is provided in the electric circuit, and a relay and a fuse are mounted in the electric junction box (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-25737 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the electrical junction box configured as described above has room for further improvement in terms of versatility, for example, in terms of adapting to the type, specifications, grade, option variations, etc. of the vehicle in which it is installed.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an electrical junction box and a wire harness that can improve versatility. [Means for solving the problem]

[0006] In order to solve the above problems, the electrical junction box according to the present invention includes an electrical junction box main body that accommodates internal electronic components therein; a support member that is provided on the exterior of the electrical junction box main body; and an external electronic component block that is detachably provided on the exterior of the electrical junction box main body with respect to the support member and that mounts a relay or a fuse as an external electronic component. a connector block that is detachably provided on the support member outside the electrical junction box body and that can be fitted with a connector provided at an end of a wiring material; Equipped with The support member has a first locking portion that detachably locks either the external electronic component block or the connector block, and a second locking portion that detachably locks the connector block, and the first locking portion and the second locking portion are arranged on a non-opposing surface of the support member that is located opposite to a facing surface of the support member that faces the electrical junction box body in the horizontal direction, on both sides of a vertical direction that intersects with the horizontal direction, and along a vertical direction that intersects with the horizontal and vertical directions, and the external electronic component block is locked to the first locking portion along the vertical direction, and the connector block is locked to the first locking portion and the second locking portion along the vertical direction. It is characterized by:

[0007] In order to solve the above problems, a wire harness according to the present invention includes a first wiring member and a second wiring member that constitute mutually independent circuit systems, an electric junction box body that houses internal electronic components electrically connected to the first wiring member, and a support member provided on the outside of the electric junction box body. ,before an external electronic component block that is detachably provided on the support member outside the electrical junction box body and that includes a relay or a fuse as an external electronic component electrically connected to the second wiring material; and a connector block that is detachably provided on the support member outside the electrical junction box body and that can be fitted with a connector provided at an end of a wiring material. and an electrical junction box having the support member has a first locking portion for detachably locking either the external electronic component block or the connector block, and a second locking portion for detachably locking the connector block, the first locking portion and the second locking portion being arranged on a non-opposing surface of the support member opposite to a facing surface of the support member that faces the electrical junction box body in the horizontal direction, on both sides of a vertical direction intersecting the horizontal direction, and along a vertical direction intersecting the horizontal and vertical directions, the external electronic component block is locked to the first locking portion along the vertical direction, and the connector block is locked to the first locking portion and the second locking portion along the vertical direction. . [Effects of the Invention]

[0008] The electrical junction box and the wire harness according to the present invention can improve versatility. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view showing an electrical junction box and a wire harness according to an embodiment. [Figure 2] FIG. 2 is an exploded perspective view of the electrical junction box according to the embodiment, as viewed from one side in the lateral direction. [Figure 3] FIG. 3 is an exploded perspective view of the electrical junction box according to the embodiment, as viewed from the other lateral side. DETAILED DESCRIPTION OF THE INVENTION

[0010] [Embodiment] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to these embodiments. Furthermore, the components in the following embodiments include those that are easily replaceable by those skilled in the art, or those that are substantially identical.

[0011] Fig. 1 is a perspective view showing an electric junction box 1 and a wire harness WH1 according to an embodiment. Fig. 2 is an exploded perspective view of the electric junction box 1 according to an embodiment as viewed from one side in the lateral direction X. Fig. 3 is an exploded perspective view of the electric junction box 1 according to an embodiment as viewed from the other side in the lateral direction X.

[0012] 1 to 3, X is the horizontal direction of the electrical junction box 1. Y is the vertical direction of the electrical junction box 1. Z is the up-down direction of the electrical junction box 1. The up-down direction Z includes an upward direction Z1 and a downward direction Z2. Furthermore, the horizontal direction X, the vertical direction Y, and the up-down direction Z are perpendicular to each other.

[0013] The electrical junction box 1 according to the embodiment shown in Figures 1, 2, and 3 is mounted on a vehicle such as an automobile and incorporated into a wire harness WH1. The wire harness WH1 is, for example, a collection of wiring materials W used for power supply and signal communication to connect a power source mounted on the vehicle to various electrical devices (not shown), and the wiring materials W are connected to the power source or various electronic components using connectors or the like. The wire harness WH1 includes a first wiring material W1, a second wiring material W2, and the electrical junction box 1. In this embodiment, the first wiring material W1 and the second wiring material W2, for example, constitute circuit systems independent of each other. The wiring material W including the first wiring material W1 and the second wiring material W2 is formed, for example, by a metal rod, an electric wire, a bundle of electric wires, etc. The metal rod is a conductive rod-shaped member whose exterior is covered with an insulating covering. An electric wire is a conductor (core) made of multiple conductive metal wires, the outside of which is covered with an insulating covering. An electric wire bundle is a bundle of the above-mentioned electric wires. The wiring material W is shown by a virtual line in FIG. 1 and is omitted in other figures. The wire harness WH1 bundles and aggregates multiple wiring materials W, and is electrically connected to an electric junction box 1 via connectors or the like provided at the ends of the bundled wiring materials W. The wire harness WH1 may also be configured to include grommets, protectors, exterior materials, fixing devices, etc.

[0014] The first wiring material W1 constitutes a first circuit system E1. The first wiring material W1 is electrically connected to an internal electronic component ID (see FIG. 3) disposed inside the electrical junction box body 2, an electrical device mounted on the vehicle, or a power source.

[0015] The second wiring material W2 constitutes a second circuit system E2, and is electrically connected to an external electronic component OD, an electrical device mounted on the vehicle, or a power source.

[0016] The electrical junction box 1 houses internal electronic components ID such as connectors, fuses, relays, capacitors, and electronic control units in an electrical junction box body 2. The electrical junction box 1 is installed, for example, in the engine room or the interior of a vehicle.

[0017] The wire harness WH1 electrically connects a power source, such as a battery or an alternator, to each electrical device installed in the vehicle via the electrical junction box 1 and wiring material W. The electrical junction box 1 distributes power supplied from the power source to each electrical device inside the vehicle. The electrical junction box 1 may also be called a junction box, fuse box, relay box, etc., but in this embodiment, these are collectively referred to as the electrical junction box 1. The electrical junction box 1 of this embodiment includes an electrical junction box main body 2, a support member 3, and an external electronic component block 4. The configuration of the electrical junction box main body 2 will be described in detail below with reference to the drawings.

[0018] The electrical junction box body 2 is formed, for example, in the shape of a box having a body storage space inside. The electrical junction box body 2 is provided with internal electronic components ID inside (see FIG. 3). The internal electronic components ID are electronic components that perform various functions. A plurality of internal electronic components ID are provided inside the electrical junction box body 2, and the first wiring material W1 is electrically connected to each of them. The electronic components include, for example, capacitors, relays, resistors, transistors, fuses, fusible links, connectors, IPS (Intelligent Power Switch), and microcomputers. Note that the electrical junction box body 2 may hold the internal electronic components ID with a portion exposed to the outside.

[0019] The electrical junction box body 2 also has horizontal body side surfaces 21a and 21b located on both sides in the horizontal direction X, vertical body side surfaces 22a and 22b located on both sides in the vertical direction Y, a body top surface 23a located at the top in the vertical direction Z, and a body bottom surface 23b located at the bottom in the vertical direction Z. That is, the electrical junction box body 2 according to the embodiment is formed in a rectangular parallelepiped shape. Furthermore, the electrical junction box body 2 includes a cover 24 that covers the body top surface 23a. The cover 24 covers the first wiring material W1 extending from a connector (not shown) that is fitted to the body top surface 23a. The cover 24 has cover engagement claws (not shown), and the support member 3 has cover engagement receivers (not shown) that can engage with the cover engagement claws. The cover 24 is attached to the support member 3 by engaging the cover engagement claws with the cover engagement receivers. Next, the support member 3 will be described.

[0020] The support member 3 is provided outside the electrical junction box body 2 and attached to the electrical junction box body 2. The support member 3 is made of, for example, synthetic resin. As shown in FIGS. 2 and 3, the support member 3 includes, for example, a support member base 31, a support member upper portion 32, a support member lower portion 33, and a support member side portion 34.

[0021] The support member base 31 is the main body of the support member 3 and is formed in a rectangular flat plate shape. The support member base 31 faces one of the lateral body side surfaces 21a, 21b, located on both sides of the electrical junction box main body 2 in the lateral direction X, the lateral body side surface 21a, in the lateral direction X. An upper portion 31a of the support member base 31 in the vertical direction Z protrudes upward in the vertical direction Z1 from the main body upper surface 23a of the electrical junction box main body 2. As shown in FIG. 2 , the support member base 31 has a facing surface 31f1 and a non-facing surface 31f2. The facing surface 31f1 is a surface of the support member base 31 located on the lateral body side surface 21a side in the lateral direction X. The non-opposing surface 31f12 is a surface located opposite the opposing surface 31f1 in the horizontal direction X of the support member base 31. The support member base 31 is provided with a plurality of locking portions 35 on the non-opposing surface 31f2. More specifically, the support member 3 is provided with a plurality of locking portions 35 arranged along the up-down direction Z on one side of the non-opposing surface 31f2 in the vertical direction Y. In addition, the support member 3 is provided with a plurality of locking portions 35 arranged along the up-down direction Z on the other side of the non-opposing surface 31f2 in the vertical direction Y. The support member 3 is provided with arrangement regions 35s1 in which the locking portions 35 located on both sides of the non-opposing surface 31f2 in the vertical direction Y are arranged, and with a non-arrangement region 35s2 in which the locking portions 35 are not arranged and which is located at the center of the non-opposing surface 31f2 in the vertical direction Y (see FIG. 2).

[0022] 2, the locking portion 35 according to the embodiment includes a first locking portion (locking portion) 35a to which either the external electronic component block 4 or the connector block 5 can be attached or detached, and a second locking portion 35b to which the connector block 5 can be attached or detached. In other words, the support member 3 has the first locking portion (locking portion) 35a to which either the external electronic component block 4 or the connector block 5 can be attached or detached.

[0023] As shown in FIGS. 2 and 3, each first locking portion 35a is formed, for example, by a first locking claw 351a. First locking receiving portions 352a capable of locking the first locking claws 351a are provided on the external electronic component block 4 and a first connector block 5a (described later) (see FIG. 3). The first locking receiving portions 352a have first locking spaces 352as into and into which the first locking claws 351a can be inserted and removed. The locking portion 35 according to this embodiment has, for example, two first locking portions 35a. Note that the first locking portion 35a may be formed by a first locking receiving portion, and first locking claws may be provided on the external electronic component block 4 and the first connector block 5a.

[0024] As shown in FIGS. 2 and 3, each second locking portion 35b is formed, for example, by a second locking claw 351b. Second locking receiving portions 352b capable of locking the second locking claws 351b are provided on the second connector block 5b (see FIG. 3). The second locking receiving portions 352b have second locking spaces 352bs into and into which the second locking claws 351b can be inserted and removed. The locking portion 35 according to the embodiment has, for example, seven second locking portions 35b. Note that the second locking portions 35b may be formed by second locking receiving portions, and second locking claws may be provided on the second connector block 5b.

[0025] The support member upper portion 32 is formed in a flat plate shape and faces the main body upper surface 23a of the electrical junction box main body 2 in the vertical direction Z. The support member upper portion 32 according to the embodiment has a first support member upper portion 321 (see FIG. 1) located at one end of the support member base 31 in the vertical direction Y, and a second support member upper portion 322 (see FIG. 3) located at the other end of the support member base 31 in the vertical direction Y.

[0026] The support member lower portion 33 faces the main body lower surface 23b of the electric junction box main body 2 in the vertical direction Z, and is formed in a flat plate shape.

[0027] The support member side portion 34 is formed in a flat plate shape and faces one of the vertical body side surfaces 22a of the vertical body side surfaces 22a, 22b located on both sides of the vertical direction Y of the electrical junction box body 2.

[0028] 3, the support member 3 has mounting portions 36 for mounting the electric junction box main body 2 to a vehicle. The mounting portions 36 according to the embodiment have, for example, a first mounting portion 36a on the support member lower portion 33 and a second mounting portion 36b on the support member side portion 34. Each mounting portion 36 is formed, for example, in a flat plate shape and has a through hole 361 through which the tip of a bolt Bo is inserted. The electric junction box 1 is mounted to the vehicle via the support member 3 by threading a bolt Bo inserted through the through hole 361 and a vehicle through hole 61 formed in a mounting plate 6 provided on the vehicle into a nut Nu that is threaded onto the bolt Bo.

[0029] The support member 3 configured as described above has an accommodation space S3 formed by the support member base 31, the support member upper portion 32, the support member lower portion 33, and the support member side portions 34. An operator places the electric junction box main body 2 in the accommodation space S3 of the support member 3, thereby attaching the electric junction box main body 2 to the support member 3. Then, with the electric junction box main body 2 accommodated in the accommodation space S3, the support member 3 is attached to the mounting plate 6 of the vehicle with bolts Bo and nuts Nu. With the support member 3 attached to the mounting plate 6, the opposing surface 31f1 of the support member 3 and the lateral body side surface 21a of the electric junction box main body 2 come into contact, and the support member 3 presses the electric junction box main body 2 against the mounting plate 6, thereby holding the electric junction box main body 2 in place. Next, the external electronic component block 4 will be described.

[0030] The external electronic component block 4 is detachably provided on the support member 3 outside the electrical junction box body 2, and is equipped with a relay D1 or fuses D2 and D3 as external electronic components OD. The external electronic component block 4 is formed of, for example, an insulating synthetic resin.

[0031] Here, the relay D1 is, for example, a current-carrying / cutting-off switching component that turns on or off the current flowing from a power source to an electrical device based on a command from a control unit. The fuses D2 and D3 are, for example, circuit protection components that cut off the overcurrent by melting a fusible element when an overcurrent flows, thereby preventing the overcurrent from flowing to the electrical device. In this embodiment, the relay D1 and the fuses D2 and D3 are all provided on the second circuit system E2 formed by the second wiring material W2.

[0032] The external electronic component block 4 has a plurality of cavities 4h for inserting the external electronic components OD. More specifically, the external electronic component block 4 has a first cavity 4h1 for inserting the relay D1, a second cavity 4h2 for inserting the fuse D2, and a third cavity 4h3 for inserting the fuse D3.

[0033] In the external electronic component block 4, an external electronic component OD and a second wiring material W2 are incorporated into the cavity 4h, and the second wiring material W2 is electrically connected to the external electronic component OD. For example, in the external electronic component block 4, terminals or the like provided on the ends of the second wiring material W2 are inserted into and fitted to each cavity 4h from one side in the vertical direction Y (e.g., the right side in FIG. 1). Furthermore, in the external electronic component block 4, each external electronic component OD is inserted into and fitted to each cavity 4h from the other side in the vertical direction Y (e.g., the left side in FIG. 1). With this configuration, the external electronic component OD and each second wiring material W2 are electrically connected to each other while assembled and mounted in the external electronic component block 4, and form a second circuit system E2.

[0034] The electrical junction box 1 according to the embodiment also includes a connector block 5. Next, the connector block 5 will be described.

[0035] The connector block 5 is detachably mounted on the support member 3 outside the electrical connection box main body 2, and can be fitted with a connector C provided at the end of the second wiring material W2. The connector C according to the embodiment includes a first connector C1 located on one side of the connector block 5 in the vertical direction Y, and a second connector C2 located on the other side in the vertical direction Y.

[0036] The connector block 5 has a conductive electrical connection portion (not shown) therein, and a connector C provided at an end of the second wiring material W2 is electrically connected via the electrical connection portion. For example, the first connector C1 is inserted into the connector block 5 from one side in the vertical direction Y (e.g., the right side in FIG. 1) and mated. Furthermore, the second connector C2 is inserted into the connector block 5 from the other side in the vertical direction Y (e.g., the left side in FIG. 1) and mated. With this configuration, the second wiring material W2 of the first connector C1 and the second wiring material W2 of the second connector C2 are electrically connected to each other when the first connector C1 and the second connector C2 are mated to the connector block 5, thereby forming a second circuit system E2.

[0037] The connector block 5 according to the embodiment has a first connector block 5a attached to the support member 3 by a first locking portion 35a, and a second connector block 5b attached to the support member 3 by a second locking portion 35b.

[0038] Next, a description will be given below of the assembly of the electrical junction box 1. First, an operator places the electrical junction box main body 2 in the accommodation space S3 of the support member 3 and attaches the electrical junction box main body 2 to the support member 3.

[0039] Next, the worker moves a connector (not shown) provided at the end of the first wiring material W1 upward Z1 in the vertical direction Z to engage it with the main body bottom surface 23b of the electrical junction box main body 2, electrically connecting the internal electronic component ID to the power supply, etc. via the first wiring material W1. The worker also moves a connector (not shown) provided at the end of the first wiring material W1 downward Z2 in the vertical direction Z to engage it with the main body top surface 23a of the electrical junction box main body 2, electrically connecting the internal electronic component ID to the power supply, etc. via the first wiring material W1.

[0040] Next, the worker assembles the cover 24 to the electrical junction box body 2, and covers the first wiring material W1 with the cover 24.

[0041] Next, the worker moves the external electronic component block 4 to one side in the vertical direction Y (for example, to the right in FIG. 2) relative to the support member 3. Then, the worker attaches the external electronic component block 4 to the support member 3 by engaging the first locking claw 351a with the first locking receiving portion 352a (see FIG. 3) with the first locking portion 35a.

[0042] Next, the worker inserts and fits terminals, etc., provided at the ends of the second wiring material W2 into each cavity 4h of the external electronic component block 4 from one side in the vertical direction Y (for example, the right side in FIG. 2). Then, the worker inserts and fits each external electronic component OD into each cavity 4h of the external electronic component block 4 from the other side in the vertical direction Y (for example, the left side in FIG. 2). Then, the external electronic components OD and each second wiring material W2 are electrically connected to each other when assembled and mounted on the external electronic component block 4, and the power source and the electrical equipment are electrically connected with the external electronic components OD interposed therebetween.

[0043] Next, the worker moves the first connector block 5a to the other side in the vertical direction Y (for example, the left side in FIG. 2) relative to the support member 3. Then, the worker attaches the first connector block 5a to the support member 3 by engaging the first locking claw 351a with the first lock receiving portion 352a (see FIG. 3).

[0044] Next, the worker moves the first connector C1 provided at the end of the second wiring material W2 to the other side in the vertical direction Y (e.g., the left side in FIG. 2) relative to the first connector block 5a, thereby fitting it to the first connector block 5a. The worker also moves the second connector C2 provided at the end of the second wiring material W2 to one side in the vertical direction Y (e.g., the right side in FIG. 2) relative to the first connector block 5a, thereby fitting it to the first connector block 5a. Then, the worker electrically connects the external electronic component OD to a power source or the like via the first connector block 5a and the second wiring material W2.

[0045] Next, the worker moves the first connector C1 provided at the end of the second wiring material W2 in either direction in the vertical direction Y relative to the second connector block 5b to fit it to the second connector block 5b. The worker also moves the second connector C2 provided at the end of the second wiring material W2 in either direction in the vertical direction Y relative to the second connector block 5b to fit it to the second connector block 5b. Then, the worker electrically connects the external electronic component OD to a power source or the like via the second connector block 5b and the second wiring material W2.

[0046] Finally, the worker moves the second connector block 5b in either direction in the vertical direction Y relative to the support member 3, and engages the second locking claw 351b with the second locking receiving portion 352b, thereby attaching the second connector block 5b to the support member 3 using the second locking portion 35b.

[0047] As described above, the electrical junction box 1 and wire harness WH1 according to the embodiment include a support member 3 and an external electronic component block 4. The support member 3 is provided outside the electrical junction box main body 2. The external electronic component block 4 is detachably provided on the support member 3 outside the electrical junction box main body 2 and includes a relay D1 or fuses D2 and D3 as external electronic components OD. Therefore, when the relays or fuses provided inside the electrical junction box main body 2 are insufficient to accommodate all of the electrical devices installed in a vehicle, the electrical junction box 1 according to the embodiment includes the external electronic component block 4 provided outside the electrical junction box main body 2 via the support member 3. By mounting the relays D1 or fuses D2 and D3 on the external electronic component block 4, the electrical junction box 1 can easily increase the number of relays D1 or fuses D2 and D3 as needed without modifying the electrical junction box main body 2. As a result, the electrical junction box 1 according to the embodiment can be used with improved versatility. Furthermore, in the electrical connection box 1 etc. of the embodiment, the number of relays D1 or fuses D2, D3 can be increased outside the electrical connection box main body 2 as needed, so that the number of relays and fuses located inside the electrical connection box main body 2 can be reduced, making the electrical connection box main body 2 less expensive.

[0048] Furthermore, the electrical junction box 1 according to the embodiment includes a first connector block (connector block 5) 5a that is detachably attached to the support member 3 outside the electrical junction box main body 2 and that can be fitted with a connector C provided at an end of the wiring material W. The support member 3 has a first locking portion (locking portion) 35a that detachably locks either the external electronic component block 4 or the first connector block (connector block 5) 5a. Therefore, in the electrical junction box 1 according to the embodiment, the attachment positions of the external electronic component block 4 and the first connector block 5a relative to the support member 3 can be changed depending on the shape of the space in the vehicle in which the electrical junction box 1 is installed. As a result, the versatility of the electrical junction box 1 according to the embodiment can be further improved.

[0049] Furthermore, the support member 3 in the electrical junction box 1 according to the embodiment has an attachment portion 36 for attaching the electrical junction box main body 2 to a vehicle. Therefore, the support member 3 in the electrical junction box 1 according to the embodiment can reduce the number of parts compared to a support member that is separately provided with the attachment portion 36 for attaching the electrical junction box main body 2 to a vehicle and the first locking portion (locking portion) 35a for locking the external electronic component block 4 on which the external electronic component OD is mounted. As a result, the electrical junction box 1 according to the embodiment can be easily assembled.

[0050] The above-described electric junction box 1 has been described as including a support member base 31 in the electric junction box main body 2 that faces the lateral body side surface 21a in the lateral direction X, and the support member base 31 is provided with a locking portion 35. However, the electric junction box 1 according to the embodiment is not limited to this. Alternatively, the electric junction box main body 2 may have a support member base 31 that faces the lateral body side surface 21b in the lateral direction X in accordance with the available space of the vehicle on which the electric junction box 1 is to be mounted, and the support member base 31 may be provided with a locking portion 35. Of course, the electric junction box 1 according to the embodiment is not limited to this. The locking portion 35 may be provided on the support member upper portion 32, the support member lower portion 33, or the support member side portion 34 in accordance with the available space of the vehicle on which the electric junction box 1 is to be mounted. Furthermore, the electric junction box 1 according to the embodiment can change the position at which the locking portion 35 is provided depending on the available space of the vehicle on which the electric junction box 1 is to be mounted, thereby further improving versatility.

[0051] The connector block 5 described above electrically connects one second wiring material W2 provided in the first connector C1 to one second wiring material W2 provided in the second connector C2 via an electrical connection portion. However, the connector block 5 according to the embodiment is not limited thereto. For example, it may electrically connect a plurality of second wiring materials W2 provided in the first connector C1 to one second wiring material W2 provided in the second connector C2. Of course, the connector block 5 according to the embodiment is not limited thereto. For example, it may electrically connect one second wiring material W2 provided in the first connector C1 to a plurality of second wiring materials W2 provided in the second connector C2. Furthermore, the connector block 5 according to the embodiment is not limited thereto. For example, it may electrically connect a plurality of second wiring materials W2 provided in the first connector C1 to a plurality of second wiring materials W2 provided in the second connector C2.

[0052] Furthermore, a block used in an existing electrical junction box may be used without modification as the external electronic component block 4. If a block used in an existing electrical junction box is used without modification as the external electronic component block 4, the external electronic component block 4 can be mass-produced, thereby making it possible to produce the external electronic component block 4 at low cost.

[0053] The above-described external electronic component block 4 is supported by the support member 3 via the first locking portions 35a. However, the electrical junction box 1 according to the embodiment is not limited to this, and may have a frame portion formed integrally with the support member 3. A pair of opposing walls of the frame portion may each have a locking portion, and the external electronic component block may have a locking receiving portion that can engage with the locking portions. [Explanation of symbols]

[0054] 1 Electrical junction box 2 Electrical junction box body 3 Support member 35a 1st locking part (locking part) 36 Mounting part 4 External Electronic Components Block 5a First connector block (connector block) C Connector ID internal electronic components OD External Electronic Components D1 Relay D2, D3 fuses E1 1st circuit system E2 2nd circuit system W Routing material W1 1st wiring material W2 2nd wiring material

Claims

1. an electrical junction box body that houses internal electronic components; a support member provided on the exterior of the electrical junction box body; an external electronic component block that is detachably provided on the support member outside the electrical junction box body and that includes a relay or a fuse as an external electronic component; a connector block that is detachably provided on the support member outside the electrical connection box body and that can be fitted with a connector provided at an end of a wiring material, The support member is a first locking portion that detachably locks either the external electronic component block or the connector block; a second locking portion that detachably locks the connector block, The first locking portion and the second locking portion are the electrical connection box body is laterally opposed to the opposing surface of the support member, the electrical connection box body being opposed to the opposing surface of the support member, and the electrical connection box body is laterally ... the external electronic component block is engaged with the first engaging portion along the vertical direction, The electrical junction box is characterized in that the connector block is engaged with the first engaging portion and the second engaging portion along the vertical direction.

2. The support member is arrangement regions in which the first locking portion and the second locking portion are arranged, the arrangement regions being located on both sides of the non-opposing surface in the longitudinal direction; a non-arrangement area located at the center of the non-opposing surface in the vertical direction, where the first locking portion and the second locking portion are not arranged, the connector is configured to be able to be fitted to the connector block locked by the first locking portion or the second locking portion from the non-placement area side along the vertical direction; 2. The electrical junction box according to claim 1.

3. The support member has a mounting portion for mounting the electric junction box body to a vehicle.

3. The electrical junction box according to claim 1 or 2.

4. a first wiring material and a second wiring material that constitute circuit systems independent of each other; an electrical connection box having an electrical connection box main body that houses internal electronic components electrically connected to the first wiring material, a support member provided outside the electrical connection box main body, an external electronic component block that is detachably provided on the support member outside the electrical connection box main body and that carries a relay or fuse as an external electronic component electrically connected to the second wiring material, and a connector block that is detachably provided on the support member outside the electrical connection box main body and that can be fitted with a connector provided at the end of the wiring material; Equipped with The support member is a first locking portion that detachably locks either the external electronic component block or the connector block; a second locking portion that detachably locks the connector block, The first locking portion and the second locking portion are the electrical connection box body is laterally opposed to the opposing surface of the support member, the electrical connection box body being opposed to the opposing surface of the support member, and the electrical connection box body is laterally ... the external electronic component block is engaged with the first engaging portion along the vertical direction, The wire harness is characterized in that the connector block is engaged with the first engaging portion and the second engaging portion along the longitudinal direction.

Images