JP2017034941A - Electrical junction box, wire harness system, and wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric connection box, a wire harness system, and a wire harness which can reduce the number of post-fitting as much as possible.SOLUTION: An electric connection box (1) comprises fitting parts (13, 14) which can fit circuit connection components (81, 82) to the electric connection box (1). The fitting parts include a first portion (11) to which terminals (11a, 11b) to be connected to an internal electric circuit of the electric connection box are attached; and a second portion (12) which can be coupled to and removed from the first portion, and to which terminals to be connected to external electric wires (91, 92) of the electric connection box are attached. The first portion and the second portion are coupled to each other to form the fitting parts.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an electrical connection box, a wire harness system including an electrical connection box and a wire harness, and a wire harness.

  Conventionally, an electrical junction box (for example, a power box incorporating a fuse cassette, a relay cassette, a fusible link cassette, etc.) has been used to transmit power and control signals to various electrical components via a wire harness. ing. The wire harness generally has a plurality of sub-harnesses for connecting the electrical junction box and a plurality of electrical components. The wire harness is manufactured by combining (bundling) a plurality of sub-harnesses. On the other hand, the sub-harness generally has one or more electric wires and terminals (or connectors for inserting the terminals) attached to the ends of the electric wires. The sub-harness is manufactured by combining (bundling) one or a plurality of electric wires and inserting the terminals of the electric wires into the connector as necessary.

  One of the conventional electrical junction boxes incorporates a plurality of relays and fuses, and a plurality of sub-harnesses are connected to the electrical junction box. In this conventional electric junction box, relays are concentratedly arranged at specific locations of the electrical junction box to form relay portions, and fuses are concentrated at other specific locations to form fuse portions. Yes. And some of the some electric wires which each sub-harness has are connected to a relay part, and other parts are connected to a fuse part. In other words, in this electrical connection box, a plurality of electric wires included in the sub-harness are dispersed in a plurality of locations of the electrical connection box (see, for example, Patent Document 1).

  Hereinafter, for convenience, a series of systems including the wire harness manufactured as described above and the electrical junction box will be referred to as a “wire harness system”.

JP-A-2005-212726

  In the above-described conventional electrical junction box, since the plurality of electric wires of the sub-harness are dispersed at a plurality of locations of the electrical junction box, the individual electric wires (terminals) are in an independent state (specification) when the sub-harness is manufactured. Is not attached to the target). And when a subharness is attached to an electrical junction box, each electric wire will be attached to the relay part or fuse part of an electrical junction box. That is, in the conventional electrical junction box, so-called “rear fitting” is required.

  Since the post-fit is generally difficult to automate by a machine, it is usually performed manually by an operator. However, it is desirable to reduce the number of post-fits as much as possible from the viewpoint of improving the work efficiency when attaching the sub-harness to the electrical junction box and also from the viewpoint of improving the work efficiency when configuring the wire harness system.

  In view of the above problems, an object of the present invention is to provide an electrical junction box that can reduce the number of back-fits as much as possible, and a wire harness system and a wire harness that can reduce the number of back-fits as much as possible.

In order to achieve the above-described object, the electrical junction box according to the present invention has the following features (1) and (2).
(1)
An electrical junction box having a mounting portion to which circuit connection parts can be attached,
The mounting portion is
A first portion to which a terminal connected to an electric circuit inside the electric junction box is attached, and a second portion that can be separated from or coupled to the first portion, and is connected to an electric wire outside the electric junction box. A second portion that can be attached, and the attachment portion is formed by combining the first portion and the second portion.
Be an electrical junction box.
(2)
In the electrical junction box described in (1) above,
The circuit connecting component is
At least one of a fuse, a relay and a fusible link,
Be an electrical junction box.

Furthermore, the wire harness system according to the present invention has the following features (3) to (6).
(3)
A wire harness system comprising a wire harness and an electrical junction box,
The wire harness is
A plurality of sub-harnesses for connecting the electrical junction box and a plurality of electrical components, wherein each of the plurality of sub-harnesses has specifications determined according to the electrical components to be connected; Have
The electrical junction box is
A plurality of connection portions corresponding one-to-one with the plurality of sub-harnesses, wherein at least one of the plurality of connection portions is a single connection portion that satisfies a specification of a sub-harness to be connected, Have
The single connection part is:
A first portion to which a terminal connected to an electric circuit inside the electric junction box is attached;
The sub-harness to be connected is
A second part that can be separated or combined with the first part, and has a second part to which a terminal connected to an electric wire in the sub-harness to be connected is attached;
The first part and the second part are:
When the first part and the second part are combined, an attachment part to which a circuit connection component can be attached is formed.
It must be a wire harness system.
(4)
In the wire harness system according to (3) above,
Each of the plurality of sub-harnesses is
Connecting the electrical junction box and one or more electrical components installed in a specific area of an automobile to which the wire harness system is applied;
It must be a wire harness system.
(5)
In the wire harness system according to (3) or (4) above,
Each of the plurality of sub-harnesses is
Connecting the electrical junction box and one or more electrical components that realize a specific system of an automobile to which the wire harness system is applied;
It must be a wire harness system.
(6)
In the wire harness system according to any one of (3) to (5) above,
The circuit connecting component is
At least one of a fuse, a relay and a fusible link,
It must be a wire harness system.

Furthermore, the wire harness according to the present invention has the following features (7) to (10).
(7)
A wire harness comprising a plurality of sub-harnesses for connecting an electrical junction box and a plurality of electrical components,
Each of the plurality of sub-harnesses is
It has specifications determined according to the electrical components to be connected,
At least one of the plurality of sub-harnesses is
Among the plurality of connection parts that the electric connection box has to correspond to the plurality of sub-harnesses one-to-one, the connector part corresponding to the single connection part that satisfies the specifications of the sub-harness to be connected alone,
The connector part is
A first part provided in the single connection part and a second part that can be separated or combined with a first part to which a terminal connected to an electric circuit inside the electrical connection box is attached, and the connection target A second portion to which a terminal connected to the electric wire in the sub-harness is attached, and when the first portion and the second portion are combined, a mounting portion to which a circuit connection component can be attached is formed.
Wire harness.
(8)
In the wire harness described in (7) above,
Each of the plurality of sub-harnesses is
Configured to connect the electrical junction box and one or more electrical components installed in a specific area of an automobile to which the wire harness is applied,
Wire harness.
(9)
In the wire harness described in (7) above,
Each of the plurality of sub-harnesses is
Connecting the electrical junction box and one or more electrical components that realize a specific system of an automobile to which the wire harness is applied;
And configured to connect,
Wire harness.
(10)
In the wire harness according to any one of (7) to (9) above,
The circuit connecting component is
At least one of a fuse, a relay and a fusible link,
Wire harness.

  According to the configuration of (1) above, the attachment portion (for example, a cavity into which a fuse is inserted) for attaching the circuit connection component to the electrical junction box is divided into the first portion and the second portion. Therefore, at the time of manufacturing the sub-harness connected to the electrical junction box, an electric wire (terminal) corresponding to the second part separated from the first part can be attached as necessary. Such attachment to the second part can generally be automated by a machine. That is, so-called “first fitting” is possible. Therefore, even if the electrical junction box of the present invention distributes a plurality of electric wires to a plurality of locations of the electrical junction box as in the conventional electrical junction box, the mounting portion at each of the plurality of locations is the first. If it divides | segments into a part and a 2nd part and attaches a 2nd part to an electric wire previously, a back fitting can be avoided. Therefore, the electrical junction box of this configuration can reduce the number of post-fits as much as possible.

  According to the configuration of (2) above, the electrical connection box of the present invention can be configured as an electrical connection box to which circuit connection parts (fuses, relays and fusible links) generally used in automobiles can be attached.

  According to the configuration of (3) above, for the sub-harness connected to the connection portion (single connection portion) that satisfies the specifications of the sub-harness to be connected alone, it is necessary to route the wires toward the other connection portions. There is no. Therefore, at the time of manufacturing the sub-harness, all the electric wires included in the sub-harness are collectively attached to the second part (connector or the like) corresponding to the first part of the single connection part. Such attachment to a connector or the like can generally be automated by a machine. That is, so-called “first fitting” is possible. Therefore, the wire harness system of this configuration can reduce the number of post-fittings as compared with the conventional system by the amount of the single connection portion. Furthermore, the number of back-fittings can be reduced as the number of single-connection parts increases, and ideally, the number of back-fittings can be reduced to zero by making all the connection parts into single connection parts. Therefore, the wire harness system of this configuration can reduce the number of post-fits as much as possible.

  By the way, the above “specification” means a function required for the sub-harness corresponding to the electrical component to be connected (for example, attaching a specific electric wire in the sub-harness to a fuse having a specific allowable current, Other specific electric wires are attached to relays having specific characteristics). Furthermore, the above-mentioned “satisfying the specification alone” indicates that one connection portion satisfies the specification of the sub-harness to be connected without depending on other connection portions. In addition, the connection part “satisfying the specification alone” does not necessarily have to be configured in a single connector shape, and may be configured in a collective shape in which a plurality of connectors are collected in one place.

  According to the configuration of (4) above, when the wire harness system is applied to an automobile, the sub-harness can be made independent for each specific area of the automobile. As a result, when a malfunction occurs in the sub-harness corresponding to a specific area, only the sub-harness needs to be repaired or exchanged, so that the maintainability of the wire harness system can be improved. Moreover, if the electrical components installed in a specific area are the same, the same sub-harness can be used even if the vehicle type is different, so the versatility of the wire harness system can be improved.

  According to the configuration of (5) above, when the wire harness system is applied to an automobile, the sub-harness can be made independent for each specific system of the automobile. Thereby, like the said (4), the maintainability and versatility of a wire harness system can be improved. Furthermore, according to this structure, the expandability of a wire harness system is also improved. Specifically, for example, it relates to a standard sub-harness corresponding to electrical equipment related to equipment that is standard equipment on automobiles (hereinafter referred to as “standard electrical equipment”), and equipment that is selectively equipped on automobiles. If the optional sub-harness corresponding to the electrical component (hereinafter referred to as “optional electrical component”) is configured separately, the corresponding optional sub-harness can be added to the wire harness system according to the selected optional electrical component. It will be good. This eliminates the need for electric wires or the like (so-called “discard circuit”) that are preliminarily installed in the wire harness system regardless of the presence or absence of optional electrical components.

  According to the configuration of (6) above, the wire harness system of the present invention can be configured as a wire harness system to which circuit connection parts (fuses, relays and fusible links) generally used in automobiles can be attached.

  According to the configuration of the above (7), as in the above (3), the sub-harness connected to the single connection portion does not need to be routed toward the other connection portion, and “ First fit "is possible. Therefore, if the wire harness of this structure is used, the number of back-fittings can be reduced as much as possible.

  According to the configuration of the above (8), as in the above (4), when the wire harness is applied to the automobile, the sub-harness can be made independent for each specific area of the automobile. Thereby, the maintainability and versatility of the wire harness system can be improved.

  According to the configuration of (9), as in the case of (5), when the wire harness is applied to an automobile, the maintainability, versatility, and expandability of the wire harness can be improved.

  According to the configuration of (10) above, the wire harness of the present invention can be configured as a wire harness to which circuit connection parts (fuses, relays and fusible links) generally used in automobiles can be attached, as in (6) above. .

  By the way, the above configurations (4) and (5) may be combined to divide the sub-harness for each area of the automobile and divide the sub-harness for each system within each area. Similarly, the configurations of the above (8) and (9) may be combined to divide the sub-harness for each area of the automobile and divide the sub-harness for each system within each area.

  According to the present invention, the electric wire can be “first-fitted” to the second portion constituting the mounting portion of the electrical junction box as necessary. As a result, the number of post-fits can be reduced as much as possible as compared with the conventional electrical junction box.

  In other words, according to the present invention, it is possible to “first-fit” the sub-harness connected to the single connection portion of the electrical connection box. As a result, the wire harness system and the wire harness of the present invention can reduce the number of post-fits as much as possible as compared with the conventional system and the wire harness of the conventional system.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a schematic diagram illustrating an electrical junction box according to Embodiment 1-1 of the present invention. FIG. 2 is a schematic view showing a structure of an attachment portion for attaching a circuit connection component to the electrical junction box shown in FIG. FIG. 3 is a schematic diagram illustrating a state in which the circuit connection component is attached to the attachment portion illustrated in FIG. 2. FIG. 4 is a schematic view showing an electrical junction box according to Embodiment 1-2 of the present invention. FIG. 5 is a schematic view showing a structure of an attachment portion for attaching a circuit connection component to the electrical junction box shown in FIG. FIG. 6 is a schematic view showing a state in which the circuit connection component is attached to the attachment portion shown in FIG. FIG. 7 is a schematic diagram illustrating an electrical junction box according to Embodiment 1-3 of the present invention. FIG. 8 is a schematic diagram showing a structure of an attachment portion for attaching a circuit connection component to the electrical junction box shown in FIG. FIG. 9 is a schematic view showing a state in which the circuit connection component is attached to the attachment portion shown in FIG. FIG. 10 is a schematic diagram illustrating a wire harness system and a vehicle to which the wire harness according to Embodiment 2-1 of the present invention is applied. FIG. 11 is a schematic diagram for explaining the wire harness system and the wire harness shown in FIG. 10 in more detail. FIG. 12 is a schematic diagram for explaining the wire harness system and the wire harness according to the embodiment 2-2 of the present invention in more detail. FIG. 13 is a schematic diagram illustrating a wire harness system and a vehicle to which the wire harness according to Embodiment 2-3 of the present invention is applied. FIG. 14 is a schematic diagram for explaining the wire harness system and the wire harness shown in FIG. 13 in more detail.

<Embodiment of electrical junction box>
(Embodiment 1-1)
Hereinafter, a first embodiment of an electrical junction box according to the present invention (hereinafter referred to as “first electrical junction box 1”) will be described with reference to FIGS. In the first electrical junction box 1, the concept of the electrical junction box in the present invention is applied to the fuse cassette 10.

  As shown in FIG. 1, the first electrical junction box 1 has a fuse cassette 10 and a cover 71 in which the fuse cassette 10 is stored. The fuse cassette 10 has a first portion 11 and a second portion 12 that constitute an attachment portion (details will be described later) to which a circuit connection component can be attached.

  More specifically, as shown in FIG. 2, the first portion 11 is provided with terminals 11a and 11b (in this example, a tuning fork terminal connected to the bus bar) connected to the electric circuit inside the first electric connection box 1. It has been. On the other hand, the second portion 12 can be separated from or coupled to the first portion 11 and corresponds to the terminals connected to the external electric wires 91 and 92 of the first electrical connection box 1 (corresponding to the tuning fork terminals 11a and 11b of the first portion 11). Tuning fork terminal (not shown) is attached.

  Then, as shown in FIG. 3, when the first portion 11 and the second portion 12 are joined, attachment portions 13 and 14 (cavities in this example) are formed. Fuses 81 and 82 as circuit connection parts are attached to the attachment portions 13 and 14, respectively.

  Thus, in the 1st electrical junction box 1 which has fuse cassette 10, corresponding electric wire (terminal) 91 and 92 can be attached to the 2nd part 12 separated from the 1st part 11 as needed. . Therefore, even when an electric wire in an independent state (a state where it is not attached to a specific target) can be generated like a conventional electric junction box, if the electric wire is attached to the second portion 12 in advance (first fitting) You can avoid back-fitting. Therefore, the first electrical junction box 1 can reduce the number of post-fits as much as possible.

(Embodiment 1-2)
Next, a second embodiment of an electrical junction box according to the present invention (hereinafter referred to as “second electrical junction box 2”) will be described with reference to FIGS. In the second electrical junction box 2, the concept of the electrical junction box in the present invention is applied to the relay cassette 20.

  As shown in FIG. 4, the second electrical junction box 2 has a relay cassette 20 and a cover 72 in which the relay cassette 20 is stored. The relay cassette 20 has a first portion 21 and a second portion 22 that constitute an attachment portion (details will be described later) to which a circuit connection component can be attached.

  More specifically, as shown in FIG. 5, the first portion 21 is provided with a cavity 21 a in which a terminal (not shown) connected to an electric circuit inside the second electric connection box 2 is stored. On the other hand, the second part 22 can be separated from or coupled to the first part 21, and cavities 22 a, 22 b, and 22 c are provided in which terminals connected to the electric wires 93 to 95 outside the second electrical connection box 2 are stored. ing.

  Then, as shown in FIG. 6, when the first portion 21 and the second portion 22 are coupled, the cavity 21a and the cavities 22a, 22b, and 22c constitute an attachment portion. This attachment portion is attached with a four-pole relay (not shown) as a circuit connection component.

  Thus, also in the 2nd electrical junction box 2 which has the relay cassette 20, if the electric wires 93-95 are attached to the 2nd part 22 in advance (it fits first), back fitting can be avoided. Therefore, the second electrical junction box 2 can reduce the number of post-fits as much as possible.

(Embodiment 1-3)
Next, a third embodiment of the electrical junction box according to the present invention (hereinafter referred to as “third electrical junction box 3”) will be described with reference to FIGS. In the third electrical junction box 3, the concept of the electrical junction box in the present invention is applied to the fusible link cassette 30.

  As shown in FIG. 7, the third electrical junction box 3 has a fusible link cassette 30 and a cover 73 in which the fusible link cassette 30 is stored. The fusible link cassette 30 has a first portion 31 and a second portion 32 that constitute an attachment portion (details will be described later) to which a circuit connection component can be attached.

  More specifically, as shown in FIG. 8, terminals 31 a and 31 b connected to the electric circuit inside the third electric connection box 3 are attached to the first portion 31. On the other hand, the second portion 32 can be separated from or coupled to the first portion 31, and terminals connected to the electric wires 96 to 98 outside the third electrical connection box 3 are attached.

  Then, as shown in FIG. 9, when the first portion 31 and the second portion 32 are joined together, an attachment portion 33 (in this example, a cavity) is formed. A fusible link (not shown) as a circuit connecting component is attached to the attachment portion 33.

  Thus, also in the 3rd electrical junction box 3 which has the fusible link cassette 30, if the electric wires 96-98 are attached to the 2nd part 32 in advance (it fits first), back fitting can be avoided. Therefore, the third electrical junction box 3 can reduce the number of post-fits as much as possible.

<Embodiments of wire harness system and wire harness>
(Embodiment 2-1)
Next, an embodiment in which the electrical junction box according to the present invention is applied to a wire harness system and a wire harness will be described. Specifically, referring to FIGS. 10 and 11, the first embodiment of the wire harness system according to the present invention (hereinafter referred to as “first system 100”) and the wires provided in the first system 100 will be described below. A harness (an assembly of a plurality of sub-harnesses) will be described.

  As shown in FIG. 10, the first system 100 is applied to an automobile 900 and includes an electrical connection box (power supply box) 110 and a plurality of sub-harnesses 120, 130, 140, 150, and 160. The plurality of sub-harnesses 120 to 160 are bundled with a tape or the like (not shown) to form a wire harness. Each of the plurality of sub-harnesses 120 to 160 connects one or a plurality of electrical components installed in a specific area (details will be described later) of the automobile 900 and the power supply box 110. The power supply box 110 is connected to the battery 905 of the automobile 900.

  Specifically, the sub-harness 120 connects the horn 910, the headlamp 915, the direction indicator 920, and the power supply box 110 that are installed in the left area of the engine room of the automobile 900. The sub-harness 130 connects combustion-related devices 925, 930, 935 and 940 (specifically, fuel injectors and igniters) installed in the engine area of the automobile 900 and the power supply box 110. The sub harness 140 connects the headlamp 945 and the direction indicator 950 installed in the right area of the engine room of the automobile 900 and the power supply box 110.

  On the other hand, the sub-harness 150 includes an instrument panel 955 (specifically, various electrical components such as a meter attached to the instrument panel 955) and a door 960 (specifically, installed in the right area of the interior of the automobile 900). Are connected to the power supply box 110 and the ABS actuator 965 and the like. Further, the sub-harness 160 connects the ABS actuator 970 and the door 975 (specifically, various electrical components in the door 970) installed in the left area of the interior of the automobile 900 and the power supply box 110. Yes.

  More specifically, as shown in FIG. 11, the power supply box 110 is connected to the battery 905 via the power supply cable 980 and has a plurality of connection portions 111, 112, 113, 114, 115. . The connection parts 111 to 115 correspond to the sub harnesses 120 to 160 on a one-to-one basis. Each of the connection parts 111 to 115 is configured to satisfy each specification of the sub-harnesses 120 to 160 (specification determined according to the electrical component to be connected) as a single unit. From this configuration, each of the connection portions 111 to 115 is also referred to as a single connection portion.

  For example, the connection unit 111 collectively arranges functions necessary for operating the horn 910, the headlamp 915, and the direction indicator 920 to which the sub-harness 120 is connected in one place. It is formed to do. On the other hand, the sub-harness 120 corresponding to the connecting portion 111 is a connector in which terminals of electric wires corresponding to the respective electrical components (horn 910, headlamp 915, and direction indicator 920) are inserted (pre-fitted). It forms so that it may have the part 121 and the terminal 122,123,124 connected to each of these electrical components.

  More specifically, the connection part (single connection part) 111 has a first part (for example, the first part 11 in FIG. 3) to which a terminal connected to an electric circuit inside the power supply box 110 is attached. On the other hand, the connector part 121 of the sub-harness 120 connected to the connection part 111 is a second part that can be separated or combined with the first part, and is a second part to which a terminal connected to the electric wire in the sub-harness 120 is attached. It has a portion (for example, the second portion 12 in FIG. 3). When the first part and the second part are coupled to each other, the first part and the second part form a mounting part (for example, the cavities 13 and 14 in FIG. 3) to which a circuit connection component (for example, the fuses 81 and 82 in FIG. 3) can be mounted. It has become.

  As described above, the first to third electrical connection boxes 1 to 3 (see FIGS. 1 to 9) described above can be used as the electrical connection box (power supply box) 110 in the first system 100.

  Note that the attachment part formed by the first part of the connection part 111 and the second part of the sub-harness 120 is not limited to the attachment part of the fuses 81 and 82 shown in FIG. 3, but the attachment part of the four-pole relay shown in FIG. And the attachment part of a fusible link etc. which are shown in FIG. 9 may be sufficient.

  Thereby, the sub harness 120 can transmit electric power, a control signal, etc. which are required for the electrical components 910-920 only by connecting the connector part 121 to the connection part 111. FIG. Therefore, the sub harness 120 does not need to have an electric wire for connecting to the other connection parts 112-115. As a result, it is possible to eliminate the need for the back fitting of the sub harness 120. Area 1 corresponding to sub-harness 120 represents the left area of the engine room.

  Similarly, the connection unit 112 collectively arranges functions necessary for operating the combustion-related devices 925, 930, 935, and 940 to which the sub-harness 130 is connected in one place. It is formed as follows. As a result, the sub-harness 130 includes a connector part 131 into which terminals of electric wires corresponding to each of the electrical components are inserted (pre-fitted), and terminals 132 to 135 connected to the electrical components. It is formed to have. The same applies to the connection portions 113 to 115, the sub harness 140 is formed to have the connector portion 141 and the terminals 142 and 143, and the sub harness 150 is formed to have the connector portion 151 and the terminals 152 to 156. The harness 160 is formed to have a connector part 161 and terminals 162 and 163. Area 2 corresponding to sub-harness 130 represents the right area of the engine room, area 3 corresponding to sub-harness 140 represents the engine area, area 4 corresponding to sub-harness 150 represents the right area in the room, and An area 5 corresponding to the harness 160 represents the left area in the room.

  In the first system 100, the terminal 156 of the sub-harness 150 and the terminal 162 of the sub-harness 160 are connected by an electric wire 170 for mutual communication between the ABS actuators 965 and 970. The electric wires 170 are inserted (rearly fitted) into the terminals 156 and 162 manually after the sub-harnesses 160 and 170 are connected to the power supply box 110. When there is an electric wire or the like that does not pass through the power supply box 110, the number of post-fits in the wire harness system cannot be made zero. However, in the first system 100, the back fitting can be eliminated except for the back fitting of the electric wire 170.

  As described above, the wire harness (and the aggregate of the sub-harnesses 120 to 160) in the first system 100 is connected to the connecting portions 111 to 115 (in other words, the first part at the time of manufacturing the sub-harnesses 120 to 160). ) Corresponding to the connector portions 121, 131, 141, 151, 161 (in other words, the second portion) are all attached together. Therefore, the first system 100 can reduce the number of post-fits as much as possible.

(Embodiment 2-2)
Next, a second embodiment of the wire harness system according to the present invention (hereinafter referred to as “second system 200”) will be described with reference to FIG.

  As illustrated in FIG. 12, the second system 200 includes an electrical connection box (power supply box) 210 and a plurality of sub-harnesses 220, 230, 240, 250, and 260. The plurality of sub-harnesses 220 to 260 are bundled with a tape or the like (not shown) to form a wire harness. In the second system 200, unlike the first system 100, each of the plurality of sub-harnesses 220 to 260 connects one or a plurality of electrical components that realize a specific system of the automobile 900 and the power supply box 210. ing. The power box 210 is connected to the battery 905 via a power cable 980.

  Specific examples of the systems 1 to 5 in the figure include an air conditioner system, a car navigation system, an engine combustion control system, an ABS system, and a back monitor system.

  In this way, even when the sub-harnesses 220 to 260 are divided for each system of the automobile 900, the back-fit can be made unnecessary for the sub-harnesses 220 to 260 as in the first system 100. Therefore, the second system 200 can reduce the number of post-fits as much as possible.

(Embodiment 2-3)
Next, a third embodiment of the wire harness system according to the present invention (hereinafter referred to as “third system 300”) will be described with reference to FIGS. 13 and 14, the same members as those shown in FIGS. 10 and 11 are denoted by the same reference numerals as those assigned to the members shown in FIGS. Detailed description of these members will be omitted as appropriate.

  As shown in FIG. 13, the third system 300 includes an electric connection box (power supply box) 310 and a sub-harness in addition to the first system 100 (a wire harness system provided with sub-harnesses 120 to 160 for each area of the automobile 900). 320. The sub harness 320 forms a wire harness by itself. The sub-harness 320 includes an electrical component (back monitor camera 985 as an optional electrical component) and an instrument panel 955 for realizing a specific system (specifically, a back monitor system) of the automobile 900, and a power supply box 310. And connected. The power supply box 310 is connected to the battery 905 of the automobile 900.

  More specifically, as shown in FIG. 14, the power supply box 310 is connected to the battery 905 via the power supply cable 990 and has a connection portion 311. The connection part 311 has a one-to-one correspondence with the sub-harness 320. The connection unit 311 is configured to satisfy the specifications of the sub-harness 320 (specifications determined according to the electrical components to be connected) alone.

  For example, the connection unit 311 collectively arranges functions necessary for operating the back monitor camera 985 and the instrument panel 955 to which the sub-harness 320 is connected in one place (for example, a relay and a fuse). Is formed. On the other hand, the sub-harness 320 corresponding to the connection portion 311 has a connector portion 321 in which terminals of electric wires corresponding to the respective electrical components (back monitor camera 985 and instrument panel 955) are inserted (pre-fitted). And terminals 322 and 323 connected to each of the electrical components. In addition, the system 6 in FIG. 14 represents a back monitor system.

  Thereby, the sub harness 320 can transmit electric power and control signals necessary for the electrical components 955 and 985 only by connecting the connector portion 321 to the connection portion 311. Therefore, the sub harness 320 does not need to have an electric wire for connecting to another connection part (for example, the connection parts 112-115 of the power supply box 110). As a result, it is possible to eliminate the need for the back fitting of the sub harness 320.

  As described above, as in the third system 300, the sub-harnesses 120 to 160 are divided for each area of the automobile 900, and the sub-harness 320 corresponding to a specific system (optional equipment) is added. Even if it exists (that is, even if the classification for each area and the classification for each system are combined), the number of back-fits can be reduced as much as possible.

<Other embodiments>
The present invention is not limited to the above embodiment, and various modifications can be employed within the scope of the present invention.

  For example, the third system 300 described above is configured to include a power supply box 310 that is different from the power supply box 110 of the first system 100. However, the third system 300 is not necessarily provided with the power supply box 310 different from the power supply box 110, and includes only the power supply box 110 (for example, a connection portion 371 for connecting the sub-harness 320 to the power supply box 110 is added). May be configured.

Here, the characteristics of the embodiment of the electrical junction box according to the present invention described above are briefly summarized in the following (1) and (2).
(1)
An electrical connection box (1) having attachment portions (13, 14, 21a, 22a to 22c, 33) to which circuit connection parts (81, 82, relays and fusible links not shown) can be attached,
The mounting portion is
A first part (11, 21, 31) to which terminals (11a, 11b, tuning fork terminals not shown, 31a, 31b) connected to an electric circuit inside the electric junction box are attached and separated from the first part or A second part that can be coupled and a second part (12, 22, 32) to which a terminal connected to the electric wires (91 to 98) outside the electrical junction box can be attached, and the first part And the second part are combined to form the attachment part,
Electrical junction box.
(2)
In the electrical junction box described in (1) above,
The circuit connecting component is
At least one of a fuse (81, 82), a relay (not shown) and a fusible link (not shown);
Electrical junction box.

Furthermore, the features of the embodiment of the wire harness system according to the present invention described above are briefly summarized in the following (3) to (6).
(3)
A wire harness system (100) comprising a wire harness (an assembly of 120, 130, 140, 150, 160) and an electrical junction box (110),
The wire harness is
A plurality of sub-harnesses (120, 130, 140, 150, 160) for connecting the electrical junction box and a plurality of electrical components (910-975), each of the plurality of sub-harnesses being connected Having a plurality of sub-harnesses having specifications determined according to electrical components,
The electrical junction box is
A plurality of connection portions (111 to 115) corresponding to the plurality of sub-harnesses on a one-to-one basis, wherein at least one of the plurality of connection portions is a single connection portion that satisfies the specifications of the connection-target sub-harness alone. Connecting portion,
The single connection portion (111 to 115)
A first portion (11, 21, 31) to which a terminal connected to an electric circuit inside the electric junction box is attached;
The sub-harness to be connected is
A second part (12, 22, 32) that can be separated or combined with the first part, and has a second part to which a terminal connected to the electric wire in the sub-harness to be connected is attached;
The first part and the second part are:
When the first part and the second part are combined, attachment parts (13, 14, 21a, 22a to 22c, 33) to which circuit connection parts (81, 82, relay fusible link not shown) can be attached. Form)
Wire harness system.
(4)
In the wire harness system according to (3) above,
Each of the plurality of sub-harnesses (120 to 160)
Connecting the electrical junction box (110) and one or more electrical components (910-975) installed in a specific area (area 1-5) of an automobile to which the wire harness system is applied;
Wire harness system.
(5)
In the wire harness system according to (3) above,
Each of the plurality of sub-harnesses (220 to 260, 320)
Connecting the electrical junction box (210, 310) and one or a plurality of electrical components (985) for realizing a specific system (system 1 to 5, 6) of an automobile to which the wire harness system is applied;
Wire harness system.
(6)
In the wire harness system according to any one of (3) to (5) above,
The circuit connecting component is
At least one of a fuse (81, 82), a relay (not shown) and a fusible link (not shown);
Wire harness system.

Furthermore, the characteristics of the embodiment of the wire harness according to the present invention described above are briefly summarized in the following (7) to (10).
(7)
A wire harness including a plurality of sub-harnesses (120 to 160) for connecting the electrical junction box (110) and a plurality of electrical components (910 to 975),
Each of the plurality of sub-harnesses is
It has specifications determined according to the electrical components to be connected,
At least one of the plurality of sub-harnesses is
A connector corresponding to a single connection portion that satisfies the specifications of the sub-harness to be connected among the plurality of connection portions (111 to 115) that the electric connection box has to correspond to the plurality of sub-harnesses on a one-to-one basis. Part (121-161),
The connector part is
The first part (11, 21, 31) provided in the single connection part (111-115) is separated from or coupled to the first part to which a terminal connected to an electric circuit inside the electric connection box is attached. The second part (12, 22, 32) is a second part to which a terminal connected to the electric wire in the sub-harness to be connected is attached, and the first part and the second part are Forming attachment parts (13, 14, 21a, 22a to 22c, 33) to which circuit connecting parts (81, 82, relay / fusible link not shown) can be attached when combined,
Wire harness.
(8)
In the wire harness described in (7) above,
Each of the plurality of sub-harnesses (120 to 160)
The electrical junction box (110) and one or more electrical components (910-975) installed in a specific area (area 1-5) of the automobile to which the wire harness is applied are connected. Configured,
Wire harness.
(9)
In the wire harness described in (7) above,
Each of the plurality of sub-harnesses (220 to 260, 320)
Connecting the electrical junction box (210, 310) and one or a plurality of electrical components (985) for realizing a specific system (system 1-5, 6) of an automobile to which the wire harness is applied;
And configured to connect,
Wire harness.
(10)
In the wire harness according to any one of (7) to (9) above,
The circuit connecting component is
At least one of a fuse (81, 82), a relay (not shown) and a fusible link (not shown);
Wire harness.

1, 2, 3 Electrical junction box 10 Fuse cassette 20 Relay cassette 30 Fusible link cassette 11, 21, 31 First part 11a, 11b, 31a, 31b Terminal 12, 22, 32 Second part 13, 14, 21a, 22a -22c, 33 Mounting part 81, 82 Fuse 91-98 Electric wire 100, 200, 300 Wire harness system 110, 210, 310 Power supply box (electrical connection box)
111, 112, 113, 114, 115 Connection part 211, 212, 213, 214, 215 Connection part 311 Connection part 120, 130, 140, 150, 160 Sub harness 220, 230, 240, 250, 260 Sub harness 320 Sub harness 121, 131, 141, 151, 161 Connector part 321 Connector part

Claims (10)

An electrical junction box having a mounting portion to which circuit connection parts can be attached,
The mounting portion is
A first portion to which a terminal connected to an electric circuit inside the electric junction box is attached, and a second portion that can be separated from or coupled to the first portion, and is connected to an electric wire outside the electric junction box. A second portion that can be attached, and the attachment portion is formed by combining the first portion and the second portion.
Electrical junction box. The electrical junction box according to claim 1,
The circuit connecting component is
At least one of a fuse, a relay and a fusible link,
Electrical junction box. A wire harness system comprising a wire harness and an electrical junction box,
The wire harness is
A plurality of sub-harnesses for connecting the electrical junction box and a plurality of electrical components, wherein each of the plurality of sub-harnesses has specifications determined according to the electrical components to be connected; Have
The electrical junction box is
A plurality of connection portions corresponding one-to-one with the plurality of sub-harnesses, wherein at least one of the plurality of connection portions is a single connection portion that satisfies a specification of a sub-harness to be connected, Have
The single connection part is:
A first portion to which a terminal connected to an electric circuit inside the electric junction box is attached;
The sub-harness to be connected is
A second part that can be separated or combined with the first part, and has a second part to which a terminal connected to an electric wire in the sub-harness to be connected is attached;
The first part and the second part are:
When the first part and the second part are combined, an attachment part to which a circuit connection component can be attached is formed.
Wire harness system. The wire harness system according to claim 3,
Each of the plurality of sub-harnesses is
Connecting the electrical junction box and one or more electrical components installed in a specific area of an automobile to which the wire harness system is applied;
Wire harness system. The wire harness system according to claim 3,
Each of the plurality of sub-harnesses is
Connecting the electrical junction box and one or more electrical components that realize a specific system of an automobile to which the wire harness system is applied;
Wire harness system. In the wire harness system according to any one of claims 3 to 5,
The circuit connecting component is
At least one of a fuse, a relay and a fusible link,
Wire harness system. A wire harness comprising a plurality of sub-harnesses for connecting an electrical junction box and a plurality of electrical components,
Each of the plurality of sub-harnesses is
It has specifications determined according to the electrical components to be connected,
At least one of the plurality of sub-harnesses is
Among the plurality of connection parts that the electric connection box has to correspond to the plurality of sub-harnesses one-to-one, the connector part corresponding to the single connection part that satisfies the specifications of the sub-harness to be connected alone,
The connector part is
A first part provided in the single connection part and a second part that can be separated or combined with a first part to which a terminal connected to an electric circuit inside the electrical connection box is attached, and the connection target A second portion to which a terminal connected to the electric wire in the sub-harness is attached, and when the first portion and the second portion are combined, a mounting portion to which a circuit connection component can be attached is formed.
Wire harness. The wire harness according to claim 7,
Each of the plurality of sub-harnesses is
Configured to connect the electrical junction box and one or more electrical components installed in a specific area of an automobile to which the wire harness is applied,
Wire harness. The wire harness according to claim 7,
Each of the plurality of sub-harnesses is
Connecting the electrical junction box and one or more electrical components that realize a specific system of an automobile to which the wire harness is applied;
And configured to connect,
Wire harness. In the wire harness as described in any one of Claims 7-9,
The circuit connecting component is
At least one of a fuse, a relay and a fusible link,
Wire harness.

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