JP2545765Y2 - Electrical junction box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application field] The present invention relates to an electric junction box used for wiring of an electric circuit of an automobile, and is provided with a protective wall for a connector with a rear holder which is coupled to an outer surface of the case. The electrical connection state can be maintained.

[Conventional technology]

Generally, an electric connection box is configured by stacking and housing wiring boards mainly composed of bus bars in a case, mounting a large number of fuses and relays on the outer surface of the case, and providing a connector insertion portion for a wire harness. .

As shown in FIG. 4, a plurality of connector insertion portions 2 are provided on an upper surface 1a of a case 1 by using the height of an outer peripheral wall 1b as shown in FIG. As shown in FIGS. 6 and 7, there is a type in which a connector 3 with a rear holder in which a rear holder 5 is connected to a connector body (insulating housing) 4 by a hinge 6 is fitted and locked by a locking arm 7. The rear holder 5 prevents a connector terminal (not shown) inserted inside the connector main body 4 from slipping off.

[Problem to be Solved by the Invention] As shown in FIG. 7, in the conventional electric connection box, although the connector body 4 is fitted into the connector insertion portion 2 and housed inside, the rear holder 5 and the hinge 6 are not fitted. Case upper surface 1a
, The hinge 6 may be damaged by the external force F, or the rear holder 5 may come off, and the electric connection box lacks reliability.

An object of the present invention is to provide an electric junction box which does not have such a drawback and can maintain a stable electric connection.

[Means for solving the problem]

In order to achieve the above object, in the present invention, a frame-shaped connector insertion portion is provided on the inner surface of the case of the electric connection box,
In the electric connection box in which the connector main body of the connector with a rear holder is fitted into the connector insertion portion, the upper surface of the rear holder when the connector main body is inserted into the connector insertion portion on the outer peripheral side of the case of the connector insertion portion. And a rib for preventing rattling of the rear holder on the inner surface of the protective wall.

Hereinafter, the above configuration will be specifically described with reference to the drawings showing the embodiments.

〔Example〕

FIG. 1 is a perspective view of the electric connection box according to the present invention, and FIG. 2 is a sectional view taken along the line II-II of FIG.
3 is a plan view of FIG. 2, and FIG. Also, the same components as those in the conventional example will be described using the same reference numerals.

In FIG. 1, a plurality of frame-shaped connector insertion portions 2 are recessed on the upper surface 1a 'of the case 1 as in the conventional case.
By forming the outer periphery of the case of the connector insertion portion 2 one step higher than the inner side, the protection wall 8 is raised and coupled, and the protection wall 8 is provided with a rib 9 for preventing rattling vertically.

In this embodiment, by forming the outer peripheral wall 1b 'of the case 1 one step higher according to the height of the rear holder 5 (FIGS. 5 and 6), the protective wall 8 is commonly used for the plurality of connector insertion portions 2.
However, protective walls 8 may be provided individually in necessary connector insertion portions 2. The height of the protection wall 8 is equal to or higher than the height of the rear holder 5 as is apparent from FIG.

In the figure, reference numeral 10 denotes a lower case, 11 denotes a bus bar, and 12 denotes an insulating substrate.

[Action]

As shown in FIGS. 2 and 3, when the connector 3 with the rear holder is fitted to the connector insertion portion 2, a part of the rear holder 5 and the hinge 6 are concealed and protected from the outside by the protection wall 8, so that There is no possibility that the hinge 6 is damaged by receiving an external force from the outer peripheral side of the case.

In addition, even if an external force F is applied to the rear holder 5 in the direction of the arrow, the rear wall 5 is supported by the protective wall 8, so that the holder 5 does not particularly have the hinge 6 and is a separate component from the connector body 4. Even if it is formed as, there is no fear of coming off. The rib 9 has the advantage that the protective wall 8 can be formed thinner together with the reinforcement. Further, it is conceivable to provide the protective wall 8 over the entire circumference of the connector insertion portion 2, but in this case, not only is it inconvenient to attach and detach the connector 3 with the rear holder, but also a warp is formed on the frame wall of the insertion portion 2. Is easy to occur and the appearance is not good.

[Effect of the invention]

As described above, according to the present invention, the rear holder and the hinge of the rear holder-equipped connector that is externally fitted and connected to the connector insertion portion of the electric connection box are protected from external force by the protection wall, and the rear holder is detached or hinged. There is no risk of damage, a highly reliable electrical connection state can be ensured, and the strength of the case can be improved by the ribs of the protective wall.

[Brief description of the drawings]

FIG. 1 is a perspective view of an electric connection box according to the present invention, FIG. 2 is a sectional view taken along line II-II of FIG. 1 in a state where a connector with a rear holder is fitted, and FIG. 3 is a plan view of a portion of FIG. Fig. 4, Fig. 4 is a perspective view of a case of a conventional electric junction box, Fig. 5 is a perspective view of a connector with a rear holder, Fig. 6 is a perspective view as viewed from the rear side in Fig. 5, and Fig. 7 is a conventional electric connection box. It is sectional drawing which shows the fitting state of the connector with a rear holder in a connection box. DESCRIPTION OF SYMBOLS 1 ... Case, 2 ... Connector insertion part, 3 ... Connector with rear holder, 4 ... Connector body, 5 ... Rear holder, 6 ... Hinge, 8 ... Protective wall, 9 ... Rib.

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 63-74027 (JP, U) Japanese Utility Model Sho 62-12276 (JP, U) Japanese Utility Model Sho 55-2038 (JP, U) Japanese Utility Model Sho 58- 28420 (JP, Y2)

Claims (1)

(57) [Scope of request for utility model registration] 1. An electric connection box in which a frame-shaped connector insertion portion is provided on an inner surface of a case of an electric connection box, and a connector main body of a connector with a rear holder is fitted into the connector insertion portion. A protective wall raised to the upper surface of the rear holder or more when the connector body is inserted into the connector insertion portion of the connector body is connected to the outer peripheral side of the case, and a rib for preventing backlash of the rear holder is projected on the inner surface of the protective wall. An electric connection box, characterized by being provided.