JP4613117B2 - Electric wire arrangement structure in electric junction box and electric wire arrangement method in electric junction box - Google Patents

Description

  The present invention relates to an electrical junction box (that is, an electric junction block) such as a relay box or a fuse box used for a vehicle such as an automobile. In particular, an electrical component such as a relay or a fuse is used. Electric wire arrangement structure for arranging electric wires electrically connected to the plurality of electric components on the connection box main body of the electric connection box accommodated, and an electric wire arrangement method in the electric connection box About.

  As an example of a conventional electrical junction box, a junction box main body containing a plurality of electrical components and a cover attached to the junction box main body so as to cover electric wires electrically connected to the electrical components {under (lower) And a wire converging member that partially restrains the electric wire so that the electric wire does not protrude outside the cover in order to prevent the electric wire from being caught when the cover is attached to the junction box body. Are known (see Patent Document 1).

  In this electrical junction box, the wires that must be routed in the wire routing space that is defined between the cover and the junction box main body protrude from the wire routing space, for example, with the edge of the cover. Although it is configured not to be caught between the junction box body, for example, depending on the design of a vehicle such as an automobile, the height dimension (size) of the electrical junction box may be partially reduced. Accordingly, the shape of the cover attached to the upper or lower part of the junction box body, and in particular, the cable routing space formed between the cover and the junction box body is also partially limited (ie, the cover and junction box). If there is a space that is wide enough to route the bundle of wires between the main unit and a space that is too narrow to route the bundle of wires), consider the shape of the cover If the bundle is not routed well on the junction box body, It can not be assembled in the over.

  By the way, although it is not an electric junction box as mentioned above, in a protector (namely, electric wire protector) provided with an upper case and a lower case {under (lower) cover}, a plurality of electric wires as a bundle, An explanation will be given of what is configured so as to be successfully routed in the wire routing space between the upper case and the lower case (see Patent Document 2).

  The upper case and the lower case of the protector are provided with pin insertion holes penetrating up and down at appropriate positions at equal intervals in the transverse direction of the case at their both ends and the bent portion. In this protector, when the lower case is placed on the wiring board, the pins of the wiring board for restricting the direction of the electric wire are passed through the pin insertion holes of the lower case, and the lower case It is comprised so that a some electric wire may be guided in a case. Therefore, in this protector, the upper case is attached to the lower case placed on the wiring board in this way, so that the electric wire is well within the electric cable routing space between the upper case and the lower case. It can be easily routed.

  In addition to the electrical junction box described above, a general electrical junction box used for a vehicle such as an automobile includes, for example, a relay, a fuse, and a power to a headlamp electrically connected in series to a power supply line to a heater. Relays and fuses that are electrically connected in series to the supply line, and relays and fuses that are electrically connected in series to the power supply line to the fan motor for the radiator, and electricity in series to the power supply line to the fan motor for the capacitor Electrical components that generate heat at a relatively high temperature are accommodated for a relatively long period of time, such as relays and fuses that are connected electrically.

  In particular, when a bundle of electric wires as heat sources is arranged in the vicinity of such an electrical component as a large heat source, the heat sources interfere with each other. For this reason, as measures for avoiding such thermal interference, it is conceivable to change the arrangement of the electrical components or increase the cross-sectional area of the conductor of the electric wire. However, such measures not only further reduce the design flexibility of the electrical junction box, but are also disadvantageous in terms of cost.

  Patent Document 1 does not have any teaching or suggestion related to avoiding thermal interference as described above. It should be noted that Patent Document 2 directed to a simple wire routing technique in a protector different from an electrical junction box having a junction box body that houses electrical components serving as heat sources naturally avoids thermal interference. I do not teach or suggest that.

JP 2001-2111528 A Japanese Utility Model Publication No. 60-190114

  The present invention has been made in view of the above-described circumstances, and an object thereof is to prevent a bundle of electric wires from passing in the vicinity of an electric component that becomes a heat source that generates heat at a relatively high temperature for a relatively long period of time. It is providing the electric wire wiring structure for wiring an electric wire in this way, and the wiring method of the electric wire in an electric junction box.

In order to achieve the above-described object, the wire routing structure according to the present invention is
An electrical junction box, a jig, and a plurality of electric wires having a wire bundle part,
Can be attached to the junction box body so as to cover a junction box main body in which a plurality of electrical components are accommodated and a plurality of pin insertion holes are formed, and a portion of the electric wire electrically connected to the plurality of electrical components. A wire mounting space formed between the connection box main body and the cover in the electric connection box provided with a cover, a jig base, and a direction in which the bundle of electric wires is routed on the connection box main body A plurality of jig pins arranged on the jig base to regulate the electric wire, and the electric wires bundled and arranged so as to form the electric wire bundle portion using the jig A routing structure,
The connection box body is mounted on the jig base so that the tip portions of the jig pins respectively penetrating the pin insertion holes of the connection box body protrude from the surface of the connection box body covered with the cover. Placed,
The wire is guided by the tip of the jig pin while being bundled and restrained on the junction box body, and the jig pin and the pin insertion hole are electrically connected to a heater among the plurality of electric components. Electrically connected to the headlamp, an electrical component electrically connected to the fan motor for the radiator, and an electrical component electrically connected to the fan motor for the capacitor The electric wire bundle part is formed so as to be disposed away from the electric component serving as a heat source, thereby avoiding being routed in the vicinity of the electric component serving as the heat source,
It is characterized by.

In addition, in order to achieve the above-described object, the method of wiring the electric wire in the electric junction box according to the present invention is as follows.
A junction box body containing a plurality of electrical components, and a cover attachable to the junction box body so as to cover a plurality of electric wires electrically connected to the plurality of electrical components. A method for routing the wires in a bundle in a wire routing space formed between the junction box body and the cover,
A preparation step of preparing a jig having a jig base and a plurality of jig pins arranged on the jig base in order to regulate a direction in which the bundle of electric wires is routed on the junction box body; ,
While passing the jig pins through the pin insertion holes of the connection box body, the connection box body is arranged such that the tip of the jig pins protrudes from the surface of the connection box body covered by the cover. A placing step for placing on the jig table;
A routing step that guides the tip of the jig pin while bundling the electric wires and restrains it on the junction box body,
Detachment step for removing the junction box body from the jig;
Including
The jig pin and the pin insertion hole are electrically connected to the electric component electrically connected to the heater, the electric component electrically connected to the headlamp, and the radiator fan motor among the plurality of electric components. The electric component to be connected and the electric component to be a heat source including the electric component to be electrically connected to the fan motor for the capacitor are arranged so as to keep the bundle of the electric wires away from the electric component and thereby the vicinity of the electric component to be the heat source The wire bundle is avoided from passing through.

  In the above-described electric wire arrangement structure and electric wire arrangement method in the electric junction box according to the present invention, the jig pin of the jig and the pin insertion hole of the junction box body are electrically connected to the heater. Electrical components that are heat sources such as electrical components that are electrically connected to the headlamp, electrical components that are electrically connected to the fan motor for the radiator, and electrical components that are electrically connected to the fan motor for the capacitor Therefore, it is avoided that the bundle of electric wires is routed in the vicinity of the electric component serving as a heat source.

  Further, in the above-described electric wire arrangement structure and electric wire arrangement method in the electric junction box according to the present invention, in order to regulate the direction of the jig base and the bundle of electric wires on the junction box main body. A connection box in which a jig having a plurality of jig pins arranged on a jig base is inserted into the pin insertion hole of the connection box body, and the tip of the jig pin is covered with a cover. After placing the connection box body on the jig base so that it protrudes from the surface of the body, it is guided by the tip of the jig pin and restrained on the connection box body while bundling the wires, so even if the vehicle Depending on the design, the dimensions (size) of the electrical junction box must be partially reduced, and accordingly the shape of the cover attached to the junction box body, in particular the wire that the cover forms with the junction box body There is also a partial restriction on the routing space (i.e., the electrical connection between the cover and the junction box body). Even if a space that is wide enough to route a bundle of wires and a space that is too narrow to route a bundle of wires) occurs, It can be successfully routed on the junction box body, and thus the problem that the cover cannot be assembled to the junction box body can be solved.

  According to the present invention, it is possible to avoid a bundle of electric wires from passing in the vicinity of an electric component that becomes a heat source that generates heat at a relatively high temperature for a relatively long period in the electric junction box.

  The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading through the best mode for carrying out the invention described below with reference to the accompanying drawings.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to FIGS.

  FIG. 1 is a front view of an embodiment of an electric cable arrangement structure for explaining an electric cable arrangement method in an electric junction box according to the present invention, and FIG. 2 is a diagram illustrating how a jig pin of a jig is connected to an electric junction box. The side view for demonstrating the step of the wiring method in the electrical-connection box based on this invention which shows the state just before stabing in a box main body, FIG. 3 is a jig | tool pin of a jig | tool of an electrical-connection box FIG. 4 is a side view for explaining the steps of the electric cable routing method in the electrical junction box according to the present invention, showing a state where the junction box body has been stabbed, and FIG. 4 is attached to the junction box body of FIG. FIG. 5 is a side view for explaining the steps of the electric wire routing method in the electric junction box according to the present invention, and FIG. 5 shows the jig pin of the jig removed from the junction box main body of FIG. Side for explaining the steps of the wiring method of the electric wire in the electric junction box according to the present invention, showing the state FIG, 6 is a front view of the junction box body alone, shown in Figures 1-5, and Figure 7 is a side view showing a state of attaching the modification of the lower cover in the connection box body.

  As shown in FIGS. 1 to 5, an electric wire routing structure 100 according to an embodiment of the present invention includes an electric connection box 10, a jig 50, and a plurality of electric wires 35. More specifically, the electric wire routing structure 100 is electrically connected to the junction box body 1 in which eight electrical components 11 to 18 are accommodated and a plurality of pin insertion holes 20 are formed, and to the eight electrical components 11 to 18. The lower cover 5 (see FIGS. 4 and 5) attached to the junction box body 1 so as to cover the portion of the wire harness 30 in which the eight electric wires 35 each having two conductor portions 34 connected to each other are bundled. And an upper cover (not shown) attached to the connection box body 1 so as to cover a surface opposite to the surface covered with the lower cover 5 of the connection box body 1. 1 on the jig base 51 in order to regulate the direction of the bundle of the electric wires 35 on the jig base 51 and the connection box body 1 in the electric wire routing space WRS formed between the first cover 1 and the lower cover 5. A jig 50 having a plurality of jig pins 52 arranged (see FIG. Referring to FIG. 5.) Using a wire routing structure for routing by the wire 35 into a bundle to form a plurality of the wire bundle 31 to the wire harness 30.

  As is apparent from FIGS. 2 and 3, in this electric cable routing structure 100, the junction box body 1 in which the tip portions of the jig pins 52 that respectively penetrate the pin insertion holes 20 of the junction box body 1 are covered with the lower cover. The connection box main body 1 is placed on the jig base 51 so as to protrude from the surface.

  As shown in FIGS. 1 and 3, the electric wires 35 are guided by the tip portions of the jig pins 52 while being bundled, and are restrained by the electric wire converging member such as the binding band 45 on the connection box body 1.

  The jig pin 52 and the pin insertion hole 20 are a relay or a fuse that is electrically connected in series to the electric wire 35 that is the power supply line 35a to the heater (not shown) among the eight electric components 11 to 18. The electrical component 12, the electrical component 13 such as a relay or a fuse that is electrically connected in series to the electric wire 35 that is a power supply line 35b to the headlamp, and the electric wire 35 that is a power supply wire 35c to the fan motor for the radiator. An electrical component 15 such as a relay or a fuse electrically connected in series, an electrical component 16 such as a relay or a fuse electrically connected in series to an electric wire 35 that is a power supply line 35d to the capacitor fan motor, etc. For a relatively long period of time such that the bundle of wires 35 is placed away from electrical components that generate heat at a relatively high temperature. (In other words, the wire harness 30) wire 35 which is prevented from being routed in the vicinity of the electrical components 12, 13, 15 comprising a source wire bundle portion 31 is formed.

  The remaining electrical parts 11, 14, 17, and 18 are, for example, electrical parts such as relays or fuses electrically connected in series to the power supply line (electric wire 35) to the brake lamp, and power to the blinker lamp. Electrical components such as relays or fuses electrically connected in series to the supply line (electric wire 35), electrical components such as relays or fuses electrically connected in series to the power supply line (electric wire 35) to the courtesy lamp Compared to the power supply line (electric wire 35) to the ABS (anti-lock brake system), the relay is electrically connected in series or electrical components such as fuses, etc. for a relatively short period of time or intermittently. It is an electrical component with low heat generation. In this embodiment, as is apparent from FIG. 1, the electrical component 18 may be an electrical component that generates heat at a relatively high temperature for a relatively long period. Even in this case, the wire bundle portion 31 of the electric wire 35 (that is, the wire harness 30) is avoided from being routed in the vicinity of the electric component 18.

  As shown in FIG. 6, the junction box main body 1 has eight electrical component storage chambers 7, in which the electrical components 11 to 18 are accommodated, and by a locking mechanism (not shown), respectively. The electrical component storage chamber 7 is locked.

  Next, the procedure (step) of the wiring method of the electric wire 35 in the electrical junction box 10 according to the present invention will be described.

  First, as shown in FIG. 2, the above-described jig 50 having the jig base 51 on which a plurality of jig pins 52 extending vertically and parallel to the upper surface of the jig base 51 is prepared. Then, it is installed at a predetermined place (that is, a preparation step).

  Next, as shown in FIG. 1, FIG. 3, and FIG. 6, the jig pins 52 pass through the pin insertion holes 20 of the junction box main body 1, and the tip portions of the jig pins 52 are moved to the lower cover 5. The connection box body 1 is placed on the jig base 51 so as to protrude from the surface of the connection box body 1 covered with (namely, a placement step).

  Then, the wire 35 is guided by the tip of the jig pin 52 while being bundled, and is restrained on the connection box main body 1 by a wire converging member such as a binding band 45 (ie, a routing step).

  Next, as shown in FIGS. 1 and 4, the lower cover 5 is attached to the junction box body 1 so as to cover the portion of the wire harness 30 in which the electric wires 35 electrically connected to the electrical components 11 to 18 are bundled. Attach (ie, cover attachment step).

  Then, as shown in FIG. 5, the junction box body 1 to which the lower cover 5 is attached is removed from the jig 50 (that is, a separation step).

  As described above, the jig pin 52 of the jig 50 and the pin insertion hole 20 of the junction box body 1 are electrically connected to the heater, the electrical component 13 is electrically connected to the headlamp, and the radiator. The electric wire 15 is electrically connected to the fan motor, and the electric component 16 is electrically connected to the capacitor fan motor. Therefore, it is avoided that the bundle of the electric wires 35 is routed in the vicinity of the electric components 12, 13, 15, and 16 serving as heat sources. In other words, the wire bundle portion 31 of the electric wire 35 (that is, the wire harness 30) is routed so as to bypass the place where the electrical components 12, 13, 15, 16 of the junction box body 1 are arranged.

  In addition, a jig 50 having a jig base 51 and a plurality of jig pins 52 arranged on the jig base 51 in order to regulate the direction in which the bundle of the electric wires 35 is routed on the connection box main body 1. , The jig pin 52 is passed through the pin insertion hole 20 of the connection box body 1, and the connection box is formed such that the tip of the jig pin 52 protrudes from the surface of the connection box body 1 covered with the lower cover 5. After the main body 1 is placed on the jig base 51, the electric wire 35 is guided by the tip of the jig pin 52 while being bundled and restrained on the connection box main body 1. The size (size) of the electric connection box 10a shown in FIG. 7 must be partially reduced, and accordingly, the shape of the lower cover 6 attached to the connection box main body 1, particularly the lower cover 6 is the connection box main body. 1 is also a partial restriction {i.e. A space large enough to route a bundle of electric wires 35 between the cover 6 and the junction box body 1 (that is, in the modification shown in FIG. 7, a large cover portion 6a of the lower cover 6 is formed. Space) and a space that is too narrow to route the bundle of electric wires 35 (that is, in the modification shown in FIG. 7, a space formed by the small cover portion 6 b of the lower cover 6) occurs. However, in consideration of the shape of the lower cover 6, the bundle of the electric wires 35 can be routed well on the connection box main body 1, so that the lower cover 6 cannot be assembled to the connection box main body 1.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, in the above-described embodiment, the wires 35 are routed in a bundle in the wire routing space WRS formed between the junction box body 1 and the lower cover 5 (or 6) in the electrical junction box 10 (or 10a). Although it was provided with a structure, it is not limited to this, The structure which wires the electric wire 35 in a bundle in the electric wire wiring space WRS formed between the junction box main body 1 and an upper cover (not shown). Needless to say, it may be provided. The electrical junction box 10 (or 10a) is mounted on the vehicle with the lower cover 5 (or 6) facing down in the actual use state.

  As is clear from FIGS. 1 and 6, the pin insertion hole 20 may or may not be specially formed in the connection box body 1. As is clear from FIGS. 1 and 3, the jig pins 52 are not only inserted into the pin insertion holes 20 formed in the connection box body 1 but are also arranged outside the connection box body 1. Also included.

It is a front view of one embodiment of an electric wire arrangement structure for explaining an electric wire arrangement method in an electric junction box concerning the present invention. It is a side view for demonstrating the step of the wiring method in the electric junction box which concerns on this invention which shows the state immediately before the jig | tool pin of a jig | tool stabs in the junction box main body of an electrical-machine junction box. It is a side view for demonstrating the step of the wiring method in the electrical-connection box based on this invention which shows the state which the jig | tool pin of the jig stabbed into the connection box main body of the electrical-connection box. It is a side view for demonstrating the step of the wiring method in the electric junction box which concerns on this invention which shows the state which attached the lower cover to the junction box main body of FIG. It is a side view for demonstrating the step of the wiring method in the electric junction box which concerns on this invention which shows the state by which the jig | tool pin of the jig | tool was extracted from the junction box main body of FIG. It is a front view of the junction box main body single-piece | unit shown by FIGS. It is a side view which shows the state which attached the modification of the lower cover to the connection box main body.

Explanation of symbols

100: Wire routing structure 1: Junction box body 5, 6: Lower cover (cover)
10, 10a: Electrical junction boxes 11-18: Electrical components (12, 13, 15, 16: Electrical components serving as heat sources)
20: Pin insertion hole 20
30: Wire harness 31: Electric wire bundle part 34: Conductor part 35: Electric wire 45: Binding band (electric wire converging member)
50: Jig 51: Jig base 52: Jig pin WRS: Electric wire arrangement space

Claims (2)

An electrical junction box, a jig, and a plurality of electric wires having a wire bundle part,
Can be attached to the junction box body so as to cover a junction box main body in which a plurality of electrical components are accommodated and a plurality of pin insertion holes are formed, and a portion of the electric wire electrically connected to the plurality of electrical components. A wire mounting space formed between the connection box main body and the cover in the electric connection box provided with a cover, a jig base, and a direction in which the bundle of electric wires is routed on the connection box main body A plurality of jig pins arranged on the jig base to regulate the electric wire, and the electric wires bundled and arranged so as to form the electric wire bundle portion using the jig A routing structure,
The connection box body is mounted on the jig base so that the tip portions of the jig pins respectively penetrating the pin insertion holes of the connection box body protrude from the surface of the connection box body covered with the cover. Placed,
The wire is guided by the tip of the jig pin while being bundled and restrained on the junction box body, and the jig pin and the pin insertion hole are electrically connected to a heater among the plurality of electric components. Electrically connected to the headlamp, an electrical component electrically connected to the fan motor for the radiator, and an electrical component electrically connected to the fan motor for the capacitor The electric wire bundle part is formed so as to be disposed away from the electric component serving as a heat source, thereby avoiding being routed in the vicinity of the electric component serving as the heat source,
Electric wire routing structure characterized by A junction box body containing a plurality of electrical components, and a cover attachable to the junction box body so as to cover a plurality of electric wires electrically connected to the plurality of electrical components. A method for routing the wires in a bundle in a wire routing space formed between the junction box body and the cover,
A preparation step of preparing a jig having a jig base and a plurality of jig pins arranged on the jig base in order to regulate a direction in which the bundle of electric wires is routed on the junction box body; ,
While passing the jig pins through the pin insertion holes of the connection box body, the connection box body is arranged such that the tip of the jig pins protrudes from the surface of the connection box body covered by the cover. A placing step for placing on the jig table;
A routing step that guides the tip of the jig pin while bundling the electric wires and restrains it on the junction box body,
Detachment step for removing the junction box body from the jig;
Including
The jig pin and the pin insertion hole are electrically connected to the electric component electrically connected to the heater, the electric component electrically connected to the headlamp, and the radiator fan motor among the plurality of electric components. The electric component to be connected and the electric component to be a heat source including the electric component to be electrically connected to the fan motor for the capacitor are arranged so as to keep the bundle of the electric wires away from the electric component and thereby the vicinity of the electric component to be the heat source A method of routing an electric wire in an electric junction box, characterized in that the bundle of electric wires is avoided.

Images