JP6297948B2 - Electrical junction box - Google Patents

Description

  The present invention relates to an electrical junction box that covers an opening of an electrical component housing portion that houses electrical and electronic components with an electrical and electronic component cover.

Conventionally, an electrical junction box mounted on a vehicle and distributing and supplying electric power supplied from a power source to various electrical components includes a box main body provided with an electrical and electronic component housing portion for housing electrical and electronic components such as fuses, and electrical and electronic components. And an electric / electronic component cover covering the opening of the housing portion.
As shown in FIG. 8A, the electrical junction box 100 has a handle 121 on the outer surface of the electrical / electronic component cover 120 so that the electrical / electronic component cover 120 can be easily detached from the box body 110. Is protruding. The operator picks up the handle 121 and removes the electric / electronic component cover 120 from the box body 110.

  By the way, the electrical connection box mounted on the vehicle has a limited installation location, and may be disposed near the feet of the passenger. In such a case, in the electrical / electronic component cover having a handle portion protruding from the outer surface of the electrical / electronic component cover, as shown in FIG. 8 (b), an external force is applied by the handle portion being caught on the passenger's foot. As a result, the electrical / electronic component cover may be detached from the electrical / electronic component housing portion.

  In order to solve such a problem, an electric junction box having a slide movement type electric component cover in which the moving direction for removing the electric and electronic component cover is limited has been proposed (for example, see Patent Document 1). ).

  The electrical junction box described in Patent Literature 1 is provided with a mounting portion for electrical and electronic components, and in the electrical junction box in which the mounting portion is covered with a lid, the lid is attached in the vicinity of the mounting portion of the junction box body. A holding part for holding the part slidably is provided, and a lid is slid on the holding part to cover the mounting part.

JP 2002-199549 A

  However, since the electric junction box described in Patent Document 1 has a handle portion protruding from the upper surface of the electric / electronic component cover, the occupant's foot is caught by the handle portion, and the electric / electronic component cover is moved in the sliding direction. When force is applied, the electric / electronic component cover may be detached.

  This invention is made | formed in view of the above, Comprising: It aims at providing the electrical-connection box which can make an electrical-electronic component cover difficult to remove | separate with respect to the contact from the outside.

In order to solve the above-described problems and achieve the object, an electrical junction box according to claim 1 of the present invention includes a box main body provided with an electrical / electronic component housing part for housing electrical / electronic components, and the electrical / electronic component. An electrical junction box that covers an opening formed in the housing portion and has an electrical and electronic component cover that is attached to and detached from the box body portion by sliding movement, so that the box body portion extends in parallel with the sliding movement direction. A box-side slide guide part, and a cover-side slide guide part provided on the electric / electronic component cover so as to extend in parallel to the sliding movement direction, the box-side slide guide part or the cover-side slide guide part Any one of these is a convex slide guide convex portion extending linearly in the slide movement direction, and the other is linearly extending in the slide movement direction. A slide guide groove recessed possible fit and press-fitted to guide the sliding movement of the electric and electronic parts covered by sliding while pressed into the cover-side slide guide portion relative to the box-side slide guide portion It has a slide guide part.

The electric connection box according to claim 1 of the present invention, in the above invention, the slide guide portion, the box-side slide guide portion or either of the cover-side slide guide portion is a straight line in the sliding direction And the other is a concave slide guide groove that extends linearly in the sliding movement direction and can be press-fitted into the slide guide convex.

In the electrical junction box according to claim 2 of the present invention, in the above invention, the slide guide portion is either the slide guide convex portion or the slide guide groove portion, or the slide guide convex portion and the slide. A plurality of guide groove portions are arranged in parallel in a direction perpendicular to the slide movement direction.

In the electrical junction box according to claim 3 of the present invention, in the above invention, the slide guide portion has a triangular cross section perpendicular to the slide movement direction, and the slide guide groove portion slides. The groove shape in the direction orthogonal to the moving direction forms a triangular shape corresponding to the slide guide convex portion.

In the electrical junction box according to claim 4 of the present invention, in the above invention, either the box side slide guide part or the cover side slide guide part is partially provided in a movement section in the slide movement direction. It is characterized by.

  The electrical connection box according to claim 1 of the present invention enables the slide guide portion to slide and press-fit the electrical / electronic component cover so that the electrical / electronic component cover can be attached to the box body portion. Can be made difficult to be detached from external contact.

In the electrical junction box according to the first aspect of the present invention, the pressing force required for press-fitting can be adjusted by adjusting the fitting due to the unevenness between the slide guide convex portion and the slide guide groove portion.

In the electrical junction box according to claim 2 of the present invention, the combination of the slide guide convex portion and the slide guide groove portion which are fitted to each other need not be limited to one. It can be easily attached to the main body.

The electrical connection box according to claim 3 of the present invention is characterized in that the slide guide convex portion for press-fitting is adjusted by adjusting a contact condition between the vertex of the slide guide convex portion and the vertex of the groove bottom of the slide guide groove portion. And the slide guide groove can be easily adjusted.

In the electric junction box according to claim 4 of the present invention, the cover-side slide guide portion may be press-fitted into the box-side slide guide portion in a part of the moving section in the slide movement direction. It is possible to suppress a decrease in wearability due to press fitting of the cover.

FIG. 1 is an exploded perspective view showing the vicinity of an electrical / electronic component housing portion of an electrical junction box according to an embodiment of the present invention. 2A is a perspective view of the electrical connection box in the state where (a) slides and attaches the electrical / electronic component cover to the box body, and (b) attaches the electrical / electronic component cover to the box body. It is a perspective view of the electrical junction box of the completed state. FIG. 3A is a view showing a cross section of the outline of the box main body and the electric / electronic component cover mounted on the box main body, and FIG. 3B is adjusting the contact condition of the slide guide convex portion and the slide guide groove portion. It is a figure for demonstrating the dimension setting for doing. FIG. 4 is an enlarged view of the periphery of the slide guide convex portion and the slide guide groove portion shown in FIG. FIG. 5A shows slide guide convex portions and slide guide groove portions that are different from the slide guide convex portions and slide guide groove portions used for mounting the electric / electronic component cover shown in FIG. It is the figure which showed the state which mounted | wore the box main-body part using the electric and electronic component cover, (b) is the figure which expanded the periphery of the slide guide convex part and slide guide groove part which were shown to (a). FIG. 6 is an exploded perspective view showing the vicinity of the electrical / electronic component housing portion of the electrical junction box of the first modification. FIG. 7A is a diagram showing a cross section of the outer shell of the box body and the electric / electronic component cover mounted on the box body, and FIG. 7B is a pair of slide guide walls, slide guide protrusions, FIG. FIG. 8 is a diagram for explaining the prior art.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of an electrical junction box according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is an exploded perspective view showing the vicinity of an electrical / electronic component housing portion of an electrical junction box according to an embodiment of the present invention.
2A is a perspective view of the electrical connection box in the state where (a) slides and attaches the electrical / electronic component cover to the box body, and (b) attaches the electrical / electronic component cover to the box body. It is a perspective view of the electrical junction box of the completed state.
In FIG. 2, the fuse is not shown.
FIG. 3A is a view showing a cross section of the outline of the box main body and the electric / electronic component cover mounted on the box main body, and FIG. 3B is adjusting the contact condition of the slide guide convex portion and the slide guide groove portion. It is a figure for demonstrating the dimension setting for doing. FIG. 4 is an enlarged view of the periphery of the slide guide convex portion and the slide guide groove portion shown in FIG. FIG. 5A shows slide guide convex portions and slide guide groove portions that are different from the slide guide convex portions and slide guide groove portions used for mounting the electric / electronic component cover shown in FIG. It is the figure which showed the state which mounted | wore the box main-body part using the electric and electronic component cover, (b) is the figure which expanded the periphery of the slide guide convex part and slide guide groove part which were shown to (a).
The electrical junction box 1 according to the embodiment of the present invention is mounted on a vehicle, for example, and distributes and supplies power supplied from a power source to various electrical components.

  The electrical connection box 1 includes a box body 10 provided with an electrical / electronic component housing 11 for housing electrical / electronic components F, and an opening 11 a formed in the electrical / electronic component housing 11.

  The electrical connection box 1 includes a box side slide guide portion 31 provided on the box main body portion 10 so as to extend in parallel with the slide movement direction, and a cover provided on the electric / electronic component cover 20 so as to extend in parallel with the slide movement direction. And a slide guide portion 30 for guiding the slide movement of the electric / electronic component cover 20 by sliding the cover side slide guide portion 32 while press-fitting the cover side slide guide portion 32 into the box side slide guide portion 31. Have

  The box body portion 10 is made of a synthetic resin material, and houses a plurality of fuses F as electrical and electronic components in the electrical and electronic component housing portion 11.

The electrical / electronic component accommodating part 11 accommodates a plurality of fuses F in alignment, and each accommodated fuse is connected to an electric circuit (not shown) in the electrical / electronic component accommodating part 11.
The electrical / electronic component housing part 11 is formed with a rectangular opening 11a for inserting the fuse F, and a pair of box sides parallel to the sliding direction in the wall 12 provided so as to border the opening 11a. A box-side slide guide portion 31 is formed on each of the slide direction walls 13 and 13.
The box-side slide guide part 31 formed on one box-side slide direction wall 13 guides the sliding movement of the electric / electronic component cover 20 in a pair with the box-side slide guide part 31 formed on the other box-side slide direction wall 13. .

The box-side slide guide portion 31 is a convex slide guide convex portion 31a that extends linearly in the slide movement direction.
More specifically, the slide guide convex portion 31a has a triangular cross section perpendicular to the slide movement direction.

Three slide guide convex portions 31a are arranged in parallel in a direction orthogonal to the slide movement direction.
More specifically, the three slide guide convex portions 31a are arranged side by side so that the apexes P1 are equally spaced and a triangular groove is formed between the adjacent slide guide convex portions 31a.

  Moreover, each slide guide convex part 31a is formed so that it may extend from one end of the box side sliding direction wall 13 to the other end. That is, each slide guide convex portion 31a is formed over almost the entire movement section in the slide direction.

  The electrical / electronic component cover 20 is made of a synthetic resin material, and has a rectangular ceiling wall 21 corresponding to the shape of the opening 11a of the electrical / electronic component housing 11 and a surface on the side where the mounting to the box body 10 is started by sliding movement. Except for the surrounding wall 22 erected along the edge of the ceiling wall 21.

  The ceiling wall 21 forms a flat surface with an upper surface. For this reason, the electrical / electronic component cover 20 is not provided with a handle as an operation unit for sliding movement.

The enclosure wall 22 forms a cover-side slide guide portion 32 on each of the pair of cover-side slide direction walls 23 and 23 parallel to the slide movement direction among the walls forming the enclosure wall 22.
The cover side slide guide portion 32 formed on one cover side slide direction wall 23 guides the sliding movement of the electric / electronic component cover 20 in a pair with the cover side slide guide portion 32 formed on the other cover side slide direction wall 23. .

The cover-side slide guide portion 32 is a concave slide guide groove portion 32a that extends linearly in the slide movement direction and can be press-fitted into the slide guide convex portion 31a.
More specifically, in the slide guide groove portion 32a, the groove shape in the direction orthogonal to the slide movement direction has a triangular shape corresponding to the slide guide convex portion 31a.

  Further, three slide guide groove portions 32a are arranged side by side in a direction orthogonal to the slide movement direction. More specifically, the three slide guide groove portions 32a are arranged side by side so that the apexes P2 of the groove bottoms are equally spaced and a triangular convex portion is formed between the adjacent slide guide groove portions 32a.

As shown in FIG. 3B, the box-side slide guide portion 31 and the cover-side slide guide portion 32 are configured such that the distance S1 between the apexes P1 of the pair of slide guide convex portions 31a and the pair of slide guides. By adjusting the interval S2 of the apex P2 of the groove bottom of the groove 32a, the cover side slide guide part is set to slide while being press-fitted into the box side slide guide part.
More specifically, the interval S1 between the apexes P1 of the pair of slide guide convex portions 31a is adjusted to be larger than the interval S2 between the apexes P2 of the groove bottoms of the pair of slide guide groove portions 32a.
Further, by adjusting the size of the difference between the interval S1 and the interval S2, the contact condition between the slide guide convex portion 31a and the slide guide groove portion 32a for press-fitting is adjusted.

  Further, the box-side slide guide portion 31 and the cover-side slide guide portion 32 have a plurality of slide guide convex portions 31a and slide guide groove portions 32a arranged in a direction orthogonal to the slide movement direction, as shown in FIG. In addition, the electric / electronic component cover 20 can be attached to the box body 10 even if the slide guide convex portion 31a and the slide guide groove portion 32a are fitted in a combination different from that shown in FIGS.

Next, the procedure for mounting the electric / electronic component cover 20 on the box body 10 and the operation of each part will be described.
First, the operator faces the mounting start side of the electric / electronic component cover 20 toward the box body 10, and the pair of slide guide protrusions 31 a and 31 a of the box main body 10 and the pair of slide guides of the electric / electronic component cover 20. After fitting the end portions with the groove portions 32a and 32a, the electric / electronic component cover 20 starts to move in the sliding movement direction (see FIG. 2A).

Thereafter, the operator further moves the electric / electronic component cover 20 in the sliding movement direction, and completes the mounting of the electric / electronic component cover on the box body (see FIG. 2B).
At this time, the electric / electronic component cover 20 moves the slide guide groove portion 32a from the slide guide protrusion portion 31a and the slide guide groove portion 32a until the mounting completion position is reached after the guide in the slide movement direction is started. Continue to press fit in the slide movement direction with respect to 31a.
Here, since the pressing force necessary for the press-fitting is adjusted so as not to be excessive, workability is not hindered.
In addition, since the electric / electronic component cover 20 that has been mounted on the box body 10 is press-fitted into the slide guide groove 32a and the slide guide protrusion 31a, the box body 11 has an appropriate holding force. Held.
When the electric / electronic component cover 20 is detached from the box body 10, for example, an operator removes the electric / electronic component cover 20 by grasping the pair of cover-side sliding direction walls 23, 23 of the electric / electronic component cover 20. Slide in the direction you want.

  The electrical junction box 1 according to the embodiment of the present invention enables the slide guide portion 30 to slide and attach to the box main body portion 10 while press-fitting the electrical / electronic component cover 20. 20 can be made difficult to be detached from external contact.

  In addition, the electrical junction box 1 according to the embodiment of the present invention can adjust the pressing force necessary for press-fitting by adjusting the fitting of the slide guide convex portion 31a and the slide guide groove portion 32a due to the unevenness.

  Moreover, since the electrical junction box 1 according to the embodiment of the present invention does not have to limit the combination of the slide guide convex portion 31a and the slide guide groove portion 32a that are fitted to each other, the electrical / electronic component cover 20 is not limited to one. It can be easily attached to the box body 10.

Moreover, the electrical junction box 1 according to the embodiment of the present invention adjusts the contact condition between the apex P1 of the slide guide convex portion 31a and the apex P2 of the groove bottom of the slide guide groove portion 32a, thereby sliding for press-fitting. The degree of contact between the guide protrusion 31a and the slide guide groove 32a can be easily adjusted.
(Modification 1)

Next, Modification 1 of the electrical junction box 1 according to the embodiment of the present invention will be described with reference to FIG.
FIG. 6 is an exploded perspective view showing the periphery of the electrical / electronic component housing part 11 of the electrical junction box 2 of the first modification.
The electrical connection box 2 of the first modification is different from the electrical connection box 1 of the embodiment in that the box-side slide guide portion 31 is partially provided in the movement section in the slide movement direction.
Other configurations are the same as those in the embodiment, and the same components as those in the embodiment are denoted by the same reference numerals.

The electrical junction box 2 partially provides the slide guide convex portion 31a in the movement section in the slide movement direction.
Each slide guide convex part 31a is formed in the edge part of the slide movement direction near side of a pair of box side slide direction wall 13 and 13, and the edge part of a back | inner side.
In other words, the slide guide convex portions 31 a are provided at the four corners of the outer rectangular wall 12 provided so as to border the opening 11 a of the electric and electronic component housing portion 11. Thereby, compared with the electrical connection box 1 of the embodiment, the distance between the slide guide groove and the slide guide convex portion in the sliding movement direction while being press-fitted is reduced, and the electrical / electronic component cover 20 by the box body 10 is reduced. The holding power is not reduced.

  The electrical connection box 2 of this modification 1 has the same effect as the electrical connection box 1 of the embodiment, and has a slide guide groove portion 32a as a cover side slide guide portion 32 in a part of the movement section in the slide movement direction. Since it suffices to press-fit into the slide guide convex portion 31a as the box-side slide guide portion 31, it is possible to suppress the deterioration of the mountability due to the press-fitting of the electric / electronic component cover 20.

In addition, although the electrical connection box 2 of this modification 1 illustrated what provided the slide guide convex part 31a partially in the movement area in a slide movement direction, it is not restricted to this, The box side slide guide part 31 or cover Any one of the side slide guide portions 32 may be partially provided in the movement section in the slide movement direction. That is, instead of the slide guide convex portion 31a, the slide guide groove portion 32a may be partially provided in the movement section in the slide movement direction.
(Modification 2)

Next, the modification 2 of the electrical junction box 1 which concerns on the Example of this invention is demonstrated using FIG.
7A is a diagram showing a cross-section of the outline of the box body 10 and the electric and electronic component cover 20 attached to the box body, and FIG. 7B is a pair of slide guide walls 31b and 31b. It is the perspective view which expanded the slide guide rib 32b.
The electrical connection box 3 of the second modification is different from the electrical connection box 1 of the embodiment in that the slide guide portion 40 does not guide the electrical and electronic component cover in the sliding movement direction by fitting the convex portion and the groove portion.
Other configurations are the same as those in the embodiment, and the same components as those in the embodiment are denoted by the same reference numerals.

  The slide guide portion 40 includes a box side slide guide portion 31 provided on the box body portion 10 so as to extend in parallel with the slide movement direction, and a cover side slide guide provided on the electric / electronic component cover so as to extend in parallel with the slide movement direction. Part 32.

The box-side slide guide portion 31 is formed on each of the pair of box-side slide direction walls 13 and 13 parallel to the slide movement direction.
The box-side slide guide portion 31 has a pair of slide guide wall portions 31b and 31b that extend in parallel to the slide movement direction and face each other.

The pair of slide guide wall portions 31b and 31b slide and move while press-fitting a slide guide rib 32b (described later) of the electric / electronic component cover 20.
More specifically, the pair of slide guide wall portions 31b and 31b has a mountain shape in which opposing surfaces are continuous in the guide moving direction so that the electric and electronic component cover 20 can move in the sliding direction while applying pressure to sandwich the slide guide rib 32b. To form.
In other words, the pair of slide guide wall portions 31b and 31b are formed such that apexes of a mountain sandwiching the slide guide rib 32b on opposite surfaces are spaced apart in the slide movement direction.
As a result, it is possible to obtain a holding force for holding the electric / electronic component cover 20 on the box body 10 while allowing the electric / electronic component cover 20 to slide.

The cover side slide guide portion 32 forms a cover side slide guide portion 32 on each of the pair of cover side slide direction walls 23, 23.
The cover-side slide guide portion 32 is a convex slide guide rib 32b that extends linearly in the slide movement direction and can be press-fitted and fitted with a pair of slide guide wall portions 31b and 31b.

  The electrical connection box 3 according to the second modified example enables the slide guide portion 40 to be slid and moved to the box main body portion 10 while press-fitting the electrical / electronic component cover 20. As with the box 1, the electric / electronic component cover 20 can be made difficult to be detached from external contact.

  In the electrical connection boxes 1, 2, and 3 according to the embodiment of the present invention, the slide guide portions 30 and 40 include a pair of box side slide guide portions 31 and 31 and a pair of cover side slide guide portions 32 and 32. The slide guide portions 30 and 40 are not limited to this, but the slide guide portions 30 and 40 slide and move the electric / electronic component cover 20 by press-fitting the cover-side slide guide portion into the box-side slide guide portion. It only has to come to guide you. That is, the box-side slide guide portion 31 and the cover-side slide guide portion 32 may not be provided in pairs.

  Moreover, although the electrical connection boxes 1, 2, and 3 which concern on the Example of this invention illustrated what does not provide the handle used as the operation part for slidingly moving to the electrical / electronic component cover 20, you may provide a handle. Absent.

  The invention made by the present inventor has been specifically described based on the above-described embodiments of the invention. However, the present invention is not limited to the above-described embodiments of the invention and does not depart from the gist thereof. Various changes can be made.

1, 2 and 3 Electrical connection box 10 Box body 11 Electrical and electronic component housing 11a Opening 12 Wall 13 Box-side sliding direction wall 20 Electrical and electronic component cover 21 Ceiling wall 22 Enclosure wall 23 Cover-side sliding direction wall 30, 40 Slide guide Part 31 Box side slide guide part 31a Slide guide convex part (box side slide guide part)
31b Slide guide wall (box side slide guide)
32 Cover side slide guide part 32a Slide guide groove part (cover side slide guide part)
32b Slide guide rib (cover side slide guide)
F fuse (electrical and electronic parts)

Claims (4)

An electric / electronic component cover that covers an opening formed in the electric / electronic component housing portion and that is attached to / detached from the box main body portion by sliding movement. And in an electrical junction box comprising:
A box-side slide guide portion provided on the box body portion so as to extend in parallel with the slide movement direction; and a cover-side slide guide portion provided on the electric and electronic component cover so as to extend in parallel with the slide movement direction. ,
Either the box-side slide guide part or the cover-side slide guide part is a convex slide guide convex part that extends linearly in the slide movement direction, and the other extends linearly in the slide movement direction, and the slide guide It is a concave slide guide groove that can be press-fit into the convex part,
An electrical junction box, comprising: a slide guide portion that guides the slide movement of the electrical / electronic component cover by sliding the cover side slide guide portion while being press-fitted into the box side slide guide portion. The slide guide portion is
2. The slide guide convex portion or the slide guide groove portion, or both the slide guide convex portion and the slide guide groove portion are arranged in parallel in a direction perpendicular to the slide movement direction. Electrical connection box as described in. The slide guide portion is
A cross section in which the slide guide convex portion is orthogonal to the slide movement direction has a triangular shape,
The electrical connection box according to claim 1 or 2 , wherein a groove shape of the slide guide groove portion in a direction orthogonal to a slide movement direction forms a triangular shape corresponding to the slide guide convex portion . Either the box side slide guide part or the cover side slide guide part is
The electrical junction box according to claim 1, 2 or 3 , wherein the electrical junction box is partially provided in a movement section in a slide movement direction .

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