JPH0515037A - Box having cover - Google Patents

Abstract

PURPOSE:To improve the heat resistance and the acid resistance of a box, which has a cover, by dividing the cover into a main cover, which covers the whole of the acid-resistant box, and a side cover, which covers the fixed part of a terminal board for a power source, and constituting the side cover out of acid-resistant material. CONSTITUTION:This is equipped with a heat-resistant box 21, which stores electric parts, a terminal board 23, to which the fixing part of this box 21 is fixed and which is conductive with the electric parts, and a cover 25, which covers the cover 25 entirely. The cover 25 is composed of a main cover 39, which covers approximately the whole of the box 21, and a side cover 41, which covers the fixed part of the terminal board 23 for a power source. The side cover 41 is locked to the box side 21 with a sub engaging part 35 hidden from outside and an engaging part 35, and the main cover 39 and the side cover 41 are coupled with each other with an engaging part 45 and a part 51 to be engaged, and at least, the side cover 41 is constituted of acid-resistant material. The engaging part of the side cover 41 is hardly influenced by acid, so the oxidation by battery liquid and others is prevented, and the falling off is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a box having a cover such as a fusible link box having a fusible link connected to a battery mounted on a vehicle or the like.

[0002]

2. Description of the Related Art As a conventional box for housing electrical parts, for example, a fusible link box 1 (hereinafter referred to as "fusible link box 1" shown in FIG. 6 disclosed in Japanese Utility Model Laid-Open No. 62-130054).
There is a FL box 1). This FL box 1 stores a fusible link as an electric component,
One end of the FL box 1 is fixed and a power supply terminal plate 5 supported by a support member 3 made of an insulating material is provided. One end of the power supply terminal plate 5 is electrically connected to the terminal of the fusible link, and the other end projects from the FL box 1 and is connected to a battery terminal (not shown). An upper portion of the FL box 1 is covered with a main cover 7, and a fixed portion of the power supply terminal plate 5 which cannot be covered with the main cover 7 is covered with a side cover 9. The side cover 9
Is F in consideration of installation work and maintenance of the terminal board 5.
The L box 1 is provided so as to be openable and closable via a hinge 11. The main cover 7 is formed of an acid-resistant synthetic resin such as polypropylene, and the FL box 1 and the side cover 9 are both formed of a heat-resistant synthetic resin such as nylon.

[0003]

By the way, since the fusible link is directly connected to the battery terminal and a relatively large current flows from the battery, it is easy to generate heat and the FL box 1
Is required to have heat resistance. On the other hand, the FL box is arranged near the battery terminal and is oxidized by the battery fluid,
It is necessary to prevent corrosion and acid resistance is required.

Therefore, as shown in FIG. 6, when both the FL box 1 and the side cover 9 are made of a heat-resistant synthetic resin, the hinge 11 is vulnerable to acid, and the hinge 11 is cracked. There is a problem that the side cover 9 falls off.

Therefore, an object of the present invention is to provide a box having a cover capable of improving heat resistance and acid resistance.

[0006]

In order to solve the above problems, the present invention provides a heat-resistant box in which electric parts are housed, a power supply terminal plate fixed to the box and electrically connected to the electric parts, A cover for entirely covering the box is provided, and the cover is divided into a main cover for covering substantially the entire box and a side cover for covering a fixing portion of the power supply terminal plate, and at least the side cover is acid-resistant. It is characterized by being composed of a conductive material.

[0007]

The cover is divided into a main cover that covers almost the entire box and a side cover that covers the fixed portion of the power supply terminal plate, and the side cover is composed of a sub-engaging portion and a sub-engaged portion that are hidden from the outside. Since it is locked to the box side, the main cover and the side cover are joined by the engaging part and the engaged part, and at least the side cover is made of an acid resistant material,
The part that is easily affected by acid will be made acid resistant. Further, the locking of the side cover with respect to the box side is less likely to be affected by the outside, and the acid resistance is improved. Moreover, the box is heat resistant and resistant to heat.

[0008]

Embodiments of the present invention will be described in detail below with reference to FIGS.

FIG. 1 is an exploded perspective view showing the overall construction of the present invention, FIG. 2 is a perspective view showing the connection between an FL box and a side cover, FIG. 3 is a partially cutaway side view of FIG. 2, and FIG. FIG. 5 is a perspective view showing the entire configuration including a cover, and FIG. 5 is a partially cutaway side view of FIG.

FIG. 1 shows a fusible link box 21 (hereinafter referred to as FL box 21) as a box for accommodating a fusible link (not shown) as an electric component, and a power source terminal plate 23 fixed to the box. The F
A cover 25 that covers the entire L box 21 is shown.

The FL box 21 is made of heat-resistant synthetic resin such as nylon (for example, heat distortion temperature 14
It is molded at 9 to 182 ° C (value of 4.6 Kg / cm ² ) and the like. The FL box 21 has a cavity 27 for accommodating a fusible link (not shown), a recess 29 for fixing the power supply terminal plate 23 is provided on one wall, and a main male lock 31 is provided on both side walls. It is provided. In addition, an insulating support member 3 for supporting the protruding terminal 23a of the power supply terminal plate 23 is provided above the recess 29.
3 is projected upward. Sub male locks 35 as sub engaging portions are provided on both side walls of the support member 33.

The power supply terminal plate 23 is integrally formed with the projecting terminal 23a connected to a terminal of a battery (not shown) and a fixing portion 23b fixed to the recess 29 of the FL box 21. The fixing portion 23b is tightened and fixed in the recess 29 by a fixing screw 37, and the protruding terminal 23a is insulated and supported by the supporting member 33.

The cover 25 is divided into a main cover 39 and a side cover 41, and an integral cover 25 is formed by connecting respective engaging portions and engaged portions described later, and the FL box 21 is formed. It is configured to cover the whole of the.

The main cover 39 is formed of an acid-resistant synthetic resin such as polypropylene, and is formed in a box shape with an open bottom as shown in FIG. 1 so as to cover the FL box 21 substantially entirely. Is configured. The front side surface of the main cover 39 is provided with an opening 43 having a space slightly larger than the width of the support member 33, and a pair of slide flanges 45 as engaging portions are provided on both sides of the opening 43. Are provided integrally. Further, on both side walls of the main cover 39, main female locks 47 that are removably engaged with the main male locks 31 provided on the FL box 21 are provided. Then, by engaging the main female lock 47 of the main cover 39 with the main male lock 31 of the FL box 21, the main cover 39 is positioned and fixed in a state of covering the FL box 21.

The side cover 41 is the main cover 3
Similar to the example 9, it is formed of a synthetic resin having an acid resistance such as polypropylene and is formed into a plate-like body having a width dimension slightly larger than the opening 43 of the main cover 39 as shown in FIG. A pair of protrusions 49 are integrally provided on the inner side of the ends. Slide grooves 51 are provided on the outer surfaces of the protrusions 49 as engaged parts for releasably engaging the slide flange 45 of the main cover 39, and the sub male lock is provided on the inner surface thereof. 35
A sub female lock 53 is provided as a sub-engaged portion that is detachably engaged with the. And the side cover 41
By engaging the sub female lock 53 of the sub male lock 35 with the sub male lock 35 and fitting the slide flange portion 45 of the main cover 39 into the slide groove portion 51, the side cover 41 closes the opening 43 of the main cover 39. It is positioned and fixed on the FL box 21 side. Further, on the inner surface of the lower end portion of the side cover 41, there is provided a projecting plate 55 having a T-shaped cross-section, the projecting portion being provided inwardly and having its tip end engaged with the front side wall of the FL box 21.

Next, a procedure for assembling the cover 25 will be described.

First, as shown in FIGS. 2 and 3, the sub female lock 53 of the site cover 41 is engaged with the sub male lock 35 provided on the support member 33 of the FL box 21 to which the power supply terminal plate 23 is fixed. Then, the side cover 41 is positioned and fixed to the FL box 21. When fixing this,
The site cover 41 is slid with respect to the FL box 21 from the lower side of FIG. This slide is restricted by the protruding plate 55 coming into contact with the lower end of the power supply terminal plate 23,
It can be installed smoothly.

Next, the slide flange portion 4 of the main cover 39 is inserted into the slide groove portion 51 provided in the side cover 41.
5 is fitted to connect the main cover 39 and the side cover 41, and the main male lock 31 provided on the FL box 21 is engaged with the main female lock 47 of the main cover 39 to attach the main cover 39 to the FL box. Position and fix at 21.

As described above, the cover 25 is formed in a state where the main cover 39 and the side cover 41 are combined, and the entire FL box 21 is covered by positioning and fixing each of them to the FL box 21.

In this case, the FL box 21 which is easily affected by the heat of the power source voltage through the power source terminal plate 23 is heat resistant, and deformation by heat is suppressed. Further, the sub male lock 35 and the sub female lock 53 are located at positions hidden from the outside, and substantially the entire FL box 21 is covered with the acid-resistant main cover 39 and the side cover 41, and the peripheral edge of the side cover 41 is the main cover. Since it is arranged so as to be substantially inside of 21, the side cover 41 is prevented from falling off by preventing oxidation due to the battery liquid.

[0021]

As is apparent from the above, according to the configuration of the present invention, the box affected by the power supply voltage is resistant to heat, at least the side cover is acid resistant, and the side cover is engaged on the box side. The sub-engaging part and sub-engaged part to be performed are hidden from the outside, and almost the entire box is covered with the main cover, so the side cover engagement is unlikely to be affected by acid, preventing it from falling off. can do.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing the overall configuration of an embodiment.

FIG. 2 is a perspective view showing a combination of an FL box and a side cover.

FIG. 3 is a partially cutaway side view of FIG.

FIG. 4 is a perspective view showing an overall configuration.

5 is a partially cutaway side view of FIG. 4. FIG.

FIG. 6 is a perspective view showing a conventional example.

[Explanation of symbols]

 21 Fusible Link Box (Box) 23 Power Terminal Plate 25 Cover 39 Main Cover 41 Side Cover 35 Sub Male Lock (Sub Engagement Part) 45 Slide Collar Part (Engagement Part) 51 Slide Groove Part (Engaged Part) 53 Sub female lock (sub engaged part)

Claims (1)

Claim: What is claimed is: 1. A heat-resistant box for accommodating electric parts, a power supply terminal plate fixed to the box and electrically connected to the electric parts, and a cover for covering the box as a whole. It is characterized in that the cover is divided into a main cover that covers almost the entire box and a side cover that covers the fixing portion of the power supply terminal plate, and at least the side cover is made of an acid resistant material. Box with cover.