JP2009131004A - Electrical connection box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To arrange a cable-arranging member at its place on the outside of a connection box body, without using an external facing part and without causing the strength of the connection box body to deteriorate. <P>SOLUTION: An electrical connection box 1 has the connection box body 2 housing an electrical component. The electrical connection box 1 has a protective means 4 positioned on a cable-arranging path 10, under a state of being disposed in upright direction, toward the outside from the connection box body 2 along the cable-arranging path R for the cable-arranging member 10, arranged outside the connection box body 2 and protecting the cable-arranging member 10, in a region corresponding to the cable-arranging path R on the surface of the connection box body 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electrical junction box fixed to a structure such as a body of an automobile.

  In general, automobiles as moving bodies are equipped with a wide variety of electronic devices such as lamps such as head lamps and tail lamps, and motors such as motors for starter motors and air conditioners.

  In order to supply electric power to the various electronic devices described above, the automobile has arranged junction blocks at appropriate locations. The junction block is composed of various electric circuit units such as a large number of fuses and relays.

  Note that the junction block may include a fuse, a relay, a bus bar, and the like, and thus is also referred to as a fuse block, a relay box, or an electrical connection box. In the present specification, the above-described fuse block, relay box, and junction block are collectively referred to as an electrical connection box.

When such an electrical junction box is attached to a structure such as a vehicle by a fixing member such as a bolt, a wire harness is provided adjacent to the electrical junction box. The wire harness includes a plurality of electric wires and a connector attached to an end portion of the electric wires. The connector is fitted to various electronic devices mounted on the automobile described above and the box body described above. As an attachment structure for preventing the wire harness from being damaged, an attachment structure shown in Patent Document 1 has been conventionally known.
JP 2005-312113 A

  In addition, when the wire harness is positioned and fixed in the above-described electrical junction box without damaging it, the junction box body of the electrical junction box is covered with an exterior part such as a corrugate (corrugated tube). Since the wire harness covered with the exterior part is increased in weight by the weight of the exterior part, there is a problem that the cost is increased due to the exterior part. Further, by fixing the exterior parts to the junction box body, there is a problem that external force, stress, and the like are applied to the fixed portion of the junction box body, and the strength of the junction box body is reduced. Furthermore, when the wire harness is fixed in a bent state, there is a problem that external force, stress, and the like applied to the fixed portion of the junction box body increase, and the strength of the junction box body further decreases.

  Therefore, in view of the above-described problems, the present invention provides an electrical junction box in which a routing member can be routed to a routing position outside the junction box body without using exterior parts and without reducing the strength of the junction box body. It is an issue to provide.

  The electrical connection box according to claim 1, which has been made according to the present invention to solve the above-mentioned problems, is an electrical connection box having a connection box main body that accommodates electrical components, and a routing member that is routed outside the connection box main body. In the state where the wiring member is protected from standing in the region corresponding to the wiring path on the surface of the connection box main body and standing outward from the connection box main body along the wiring path of It has the protective means to position, It is characterized by the above-mentioned.

  According to the electrical junction box of the present invention described in claim 1, since the routing member routed outside thereof can be positioned in the routing path in a state protected by the protection means, the exterior of the routing member Protection by parts or the like can be eliminated.

  According to a second aspect of the present invention, in the electrical junction box according to the first aspect, the protection means is erected outward from the junction box body so as to sandwich the routing path, and the routing member It is characterized by having a pair of protective walls formed at a height higher than the cross section.

  According to the electrical junction box of the present invention described in claim 2, the pair of protective walls having a height equal to or higher than the cross-sectional height of the routing member are erected outward from the junction box body. It is possible to assemble the wiring member only by positioning it between the protective walls.

  According to a third aspect of the present invention, in the electrical junction box according to the first aspect, the protection means includes a protective wall covering a desired range of the wiring member, and the wiring member between the protective wall. It has the side wall which forms the accommodation space for accommodating, and the accommodation hole for accommodating the said wiring member near the said accommodation space along the said connection box main body, It is characterized by the above-mentioned.

  According to the electrical junction box of the present invention described in claim 3, the protective wall can reliably protect a desired range of the routing member, for example, a region to which an external force is applied, a region to be protected, and the like. The member can be set close to the connection box main body and set in the receiving space from the receiving hole.

  As described above, according to the electrical junction box of the present invention described in claim 1, since the arrangement member arranged on the outside can be positioned in the arrangement route while being protected by the protection means, Protection of the cable member by the exterior parts or the like becomes unnecessary, which can contribute to the reduction of exterior parts. Moreover, the strength of the junction box body in the routing path can be improved by forming the protective means along the routing path. Further, since the protective means is formed by protruding outward from the junction box body, the space in the junction box body is not reduced. Therefore, it is possible to provide an electrical junction box that can route the routing member to the routing position outside the junction box body without using exterior parts and without reducing the strength of the junction box body.

  According to the second aspect of the present invention, in addition to the effect of the first aspect of the invention, the wiring member can be assembled only by positioning the wiring member between the pair of protective walls. Efficiency can be improved.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1, the wiring member can be protected by the protective wall regardless of the fixing position of the electric connection box, and the wiring member is connected to the connection box. Since it can be set close to the main body and placed in the accommodation space from the accommodation hole, it is possible to give flexibility to the installation location of the electrical junction box and to improve the efficiency of the wiring member wiring work. Can do.

  Hereinafter, an electrical junction box according to an embodiment of the present invention will be described with reference to the drawings of FIGS.

  1 to 3, the electrical junction box 1 is mounted on an automobile. The electrical junction box 1 has a box-shaped junction box body 2, a fixing means 3 for fixing the junction box body to a structure (not shown) such as a body of an automobile, and a protection means 4. ing.

  The junction box body 2 is made of, for example, an insulating synthetic resin such as polypropylene terephthalate and is formed by a well-known injection molding. The junction box main body 2 includes a lower cover 21, a main cover 22 mounted on the upper side of the lower cover 21, and an upper cover 23 mounted on the upper side of the main cover. And the junction box main body 2 is shape | molded in box shape by the lower cover 21, the main cover 22, and the upper cover 23 being assembled | attached sequentially.

  As shown in FIG. 1, the lower cover 21 includes a substantially flat base wall 211 and a peripheral wall 212 extending from the peripheral edge of the base wall 211 along a direction substantially orthogonal to the base wall 211. And is formed in a bottomed cylindrical shape. The peripheral wall 212 is formed with an opening 213 through which a wire harness, an electric wire, and the like (not shown) are led out from the electrical junction box 1.

  As shown in FIG. 2 and the like, the main cover 22 has a peripheral wall 221 formed in substantially the same shape as the peripheral wall 212 of the lower cover 21 and continuous to the peripheral wall 212, and a housing portion 222 provided in the peripheral wall 221. is doing. The accommodating part 222 accommodates these electrical components 5 in the junction box main body 2 by mounting a plurality of various electrical components 5 such as relay blocks, fuses, and connectors.

  As shown in FIG. 2 and the like, the upper cover 23 is extended from the top wall 231 located on the upper side of the junction box body 2 and the peripheral portion of the top wall 231 along a direction substantially orthogonal to the top wall 231. The peripheral wall 232 is formed. In the present embodiment, the case where the upper cover 23 is formed of a translucent synthetic resin will be described. However, the upper cover 23 can be formed of a non-translucent synthetic resin.

  Each of the lower cover 21 and the main cover 22 is formed with a plurality of engaging portions 214 and 223 near the edges facing each other, and the engaging portions 214 and 223 engage with each other so that the lower cover 21 and the main cover 22 are engaged with each other. The cover 22 is fixed. Each of the main cover 22 and the upper cover 23 is formed with a plurality of engaging portions 224 and 233 near the edges facing each other. The cover 22 and the upper cover 23 are fixed.

  The fixing means 3 has a plurality (three in FIG. 1) of brackets 31. Of the three brackets 31, one is formed integrally with the peripheral wall 212 of the lower cover 21, and the other is formed integrally with the peripheral wall 221 of the main cover 22. And each of the bracket 31 is fixed to the said structure with fasteners, such as a volt | bolt.

  As shown in FIGS. 1 to 3, the protection means 4 stands outward from the junction box body 2 along the routing path R of the routing member 10 routed outside the junction box body 2. It is configured to be positioned on the routing route R in a state where the routing member 10 is protected in a region corresponding to the routing route R on the surface of the junction box body.

  In addition, as the wiring member 10, a wire harness, an electric wire, a hose etc. are mentioned, for example, The cross-sectional shape has a different shape, such as circular and a square. The routing route R is a route on the surface of the junction box body 2 of the routing member 10 when the routing member 10 is fixed to the junction box body 2.

  The protection means 4 includes a pair of protective walls 41 that are erected outward from the connection box body 2 so as to sandwich the wiring path R and that are higher than the wiring member 10, and the pair of protective walls The wall 41 has a plurality of ribs 42 for preventing the wall 41 from falling down, and is integrally formed with the junction box body 2.

  Each of the pair of protective walls 41 is formed in a rectangular flat plate shape. As shown in FIG. 3, the height of the protective wall 41 is designed to be larger by the length T than the diameter of the routing member 10 having a circular cross section. Note that the length T is a predetermined range in consideration of the influence of external force at the grounding location of the electrical junction box 1 such as a length 0 equal to the height of the routing member 10 or a predetermined length from the height. By setting within, the height of the cross section of the routing member 10 or more can be realized. Further, the height of the cross section of the routing member 10 differs depending on the cross-sectional shape of the routing member 10, and is the height from the surface of the lower cover 21 when the routing member 10 is fixed to the connection box body 2.

  In the present embodiment, the distance between the pair of protective walls 41 is described as being designed to be slightly larger than the diameter of the protective member 10, but the present invention is not limited to this, The protective member 10 can be arbitrarily designed such that the protective member 10 is sandwiched by being the same as or slightly narrower than the diameter.

  The rib 42 extends from the outer side of the protective wall 41 and the surface of the lower cover 21 and is formed in a triangular shape. By forming the ribs 42 on the outer surface of the protective wall 41 in this way to prevent inward tilting, the pair of protective walls 41 form a concave groove whose inside is a flat surface. Can be assembled smoothly. The rib 42 may be formed inside the protective wall 41.

  The protective means 4 covers the range of the routing member 10 in which the weight of all of the pair of protective walls 41 and the plurality of (eight in FIG. 1) ribs 42 corresponds to the length of the routing route R. It is designed to be lighter than the weight of the exterior parts (corrugated etc.). By designing in this way, it is possible to contribute to the reduction of the number of members mounted on an automobile or the like and the weight reduction of the members.

  The routing member 10 is assembled to the electrical junction box 1 having the above-described configuration as follows. First, when the molded electrical junction box 1 is fixed to the structure by the fixing means 3, the protection member 10 is positioned between the pair of protection walls 41 of the protection means 4, and the junction box body 2 is Fixed by clamping. Thereby, the routing member 10 will be in the state protected by the pair of protection walls 41, and will be protected from the external force from the direction A in FIG. Further, since the pair of protective walls 41 are formed higher than the height of the cross section of the routing member 10, it is possible to protect from the external force from the direction B by the upper end portions thereof.

  In the present embodiment, the case where the wiring member 10 is fixed to the connection box body 2 by clamping or the like will be described. For example, the ends of the pair of protective walls 41 are closed by contacting the structure. Thus, a fixing method such as fixing the wiring member 10 can be arbitrarily determined. Further, when the wiring member 10 is fixed to the junction box body 2 by tape fastening, the external force, stress, etc. applied to the fixing portion are reduced, so that the fixing of the wire harness due to a problem such as tape peeling is released. Can be prevented. Further, various embodiments such as the above-described protection means 4 being positioned on the routing route R of the wiring member 10 without providing clamping, tape fastening or the like for fixing the wiring member 10 to the junction box body 2 are provided. It can also be.

  The electrical junction box 1 of the first embodiment described above can be positioned in the routing route R in a state where the routing member 10 routed outside the junction box body 2 is protected by the protection means 4. Protection of the rope member 10 by an exterior component or the like is not necessary, which can contribute to the reduction of exterior components. In addition, by forming the protection means along the routing route R, the strength of the junction box body in the routing route R can be improved. In addition, since the protection means 4 is formed so as to protrude outward from the junction box body 2, the space in the junction box body 2 is not reduced. Accordingly, it is possible to provide the electrical junction box 1 that can route the routing member 10 to the routing position outside the junction box body 2 without using exterior parts and without reducing the strength of the junction box body 2. .

  Moreover, since it can assemble | attach only by positioning the wiring member 10 between a pair of protective walls 41, efficiency improvement of the wiring operation of the wiring member 10 can be achieved.

  In addition, although Example 1 mentioned above demonstrated the case where the routing path | route R in the electrical junction box 1 was linear, this invention is not limited to this, The routing path | route R is curvilinear shape, bending shape, etc. Different embodiments can be provided.

  For example, as shown in FIG. 4, when the routing route R is substantially L-shaped, the protection means 4 is substantially L-shaped so as to stand outward from the junction box body 2 so as to sandwich the routing route R. And having a pair of protective walls 41. By adopting such a structure, the routing member 10 is not covered with the conventional exterior member, and therefore the flexibility with respect to bending is superior to that of the conventional one. Therefore, as shown in FIG. be able to.

  In the electrical junction box 1 of Example 1 described above, the preferred embodiment has been described when installing in a place where the external force from the direction B in FIG. 3 is small, but in Example 2, the external force from the direction B is applied. A preferred embodiment will be described when it is installed at a location.

  5 to 8, an electrical junction box 1 includes a box-like junction box main body 2, a fixing means 3 for fixing the junction box main body to a structure (not shown) such as a body of an automobile, and protection. And means 4. In addition, since the basic structure of the junction box main body 2 and the fixing means 3 of the electrical junction box 1 is the same as Example 1 mentioned above, only the structure of the different protection means 4 is demonstrated below.

  The protection means 4 includes a protection wall 43 that covers a desired range of the routing member 10, a side wall 44 that forms an accommodation space for accommodating the routing member 10 between the protection wall 43, and the arrangement The cable member 10 includes an accommodation hole 45 for accommodating the cable member 10 close to the accommodation space along the junction box main body, and a plurality of ribs 42 for preventing the protective wall 43 from falling down.

  The protective wall 43 has an upright portion 431 extending from the surface of the lower cover 21 and a cover portion 432 extended from the end portion of the upright portion 431 so as to cover the routing member 10 and has a substantially inverted L-shaped cross section. Is formed. Although the protective wall 43 is formed so as to cover the routing member 10 in the entire range corresponding to the routing route R, various embodiments such as partially covering can be used. The protective wall 43 is prevented from falling toward the routing member 10 by the plurality of ribs 42 described above.

  In the present embodiment, the case where the protective wall 43 is formed in an approximately L-shaped cross section will be described. However, the present invention is not limited to this, and various shapes such as a circular arc shape can be used.

  The side wall 44 is formed to extend from the surface of the lower cover 21 so as to face the protective wall 43 and to be shorter than the protective wall 43. The side wall 44 forms an accommodation space 46 for accommodating the routing member 10 between the side wall 44 and the protective wall 43. The accommodation hole 45 is a space formed between the end portion 433 of the cover portion 432 of the protective wall 43 and the end portion 441 of the side wall 44.

  Note that the protection means 4 has a range of the routing member 10 in which all the weights of the protection wall 43, the side wall 44, and the plurality of (four in FIG. 5) ribs 42 correspond to the length of the routing path R. It is designed to be lighter than the weight of the exterior parts (corrugated, etc.) when covered. By designing in this way, it is possible to contribute to the reduction of the number of members mounted on an automobile or the like and the weight reduction of the members.

  The routing member 10 is assembled to the electrical junction box 1 having the above-described configuration as follows. First, when the molded electrical junction box 1 is fixed to the structure by the fixing means 3, the routing member 10 is slid toward the protection means 4 along the lower cover 21 by an operator or the like, and the side wall 44. And is accommodated in the accommodation space 46 from the accommodation hole 45. Thereby, the routing member 10 is protected from the external force etc. from both the direction A and the direction B in FIG.

  The electrical junction box 1 of the first embodiment described above can be positioned in the routing route R in a state where the routing member 10 routed outside the junction box body 2 is protected by the protection means 4. Protection of the rope member 10 by an exterior component or the like is not necessary, which can contribute to the reduction of exterior components. In addition, by forming the protection means along the routing route R, the strength of the junction box body in the routing route R can be improved. In addition, since the protection means 4 is formed so as to protrude outward from the junction box body 2, the space in the junction box body 2 is not reduced. Accordingly, it is possible to provide the electrical junction box 1 that can route the routing member 10 to the routing position outside the junction box body 2 without using exterior parts and without reducing the strength of the junction box body 2. .

  Further, the wiring member 10 can be protected by the protective wall 43 regardless of the fixing position of the electrical connection box 1 with respect to the structure, and the wiring member 10 is brought close to the lower cover 21 of the connection box body 2 so as to receive the accommodation hole 45. Therefore, the installation place of the electrical junction box 2 can be provided with a degree of freedom, and the wiring member 10 can be routed more efficiently.

  In addition, Example 1, 2 mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

It is a downward perspective view which shows the external appearance of the electrical junction box which concerns on Example 1. FIG. 1 is an upper perspective view showing an external appearance of an electrical junction box according to Example 1. FIG. FIG. 2 is a partially enlarged side view in which the protection means in FIG. 1 is enlarged. It is a downward perspective view which shows the other form of the electrical-connection box which concerns on Example 1. FIG. It is a downward perspective view which shows the external appearance of the electrical junction box which concerns on Example 2. FIG. It is an upper perspective view which shows the external appearance of the electrical junction box which concerns on Example 2. FIG. It is the expansion perspective view which expanded the protection means shown in the part X in FIG. It is the elements on larger scale which expanded the protection means in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electrical junction box 2 Junction box main body 3 Fixing means 4 Protection means 5 Electrical component 10 Arrangement member 41 Protection wall 42 Rib 43 Protection wall 44 Side wall 45 Housing hole R Arrangement route

Claims (3)

In an electrical junction box having a junction box body that houses electrical components,
In an area corresponding to the routing path on the surface of the junction box body, standing up from the junction box body along the routing path of the routing member routed outside the junction box body An electrical junction box comprising protection means for positioning the routing member in the routing path in a protected state.   The protective means has a pair of protective walls that are erected outward from the junction box body so as to sandwich the wiring path and that are formed at a height equal to or higher than the cross section of the wiring member. The electrical junction box according to claim 1.   The protective means includes a protective wall that covers a desired range of the routing member, a side wall that forms an accommodation space for accommodating the routing member between the protective wall, and the connection member The electrical connection box according to claim 1, further comprising: a housing hole for housing the housing space close to the housing space.

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