JPH073230U - Electrical junction box - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a miniaturized electrical junction box. In an electrical junction box having a base box 1 and an upper cover for covering the base box 1, and having a plurality of relay housings 4 in the base box 1, a vertical partition wall 5 is provided in the base box 1.
The partition wall 5 is provided between the upper cover and the upper cover.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric junction box used for internal wiring of an automobile.

[0002]

[Prior art]

 As shown in FIG. 3, for example, a conventional electrical junction box is configured by housing a large number of relays 3 in a box-shaped base box 1 having an opening at the top and covering an upper cover 2 from above. 4 is a relay housing. A large number of relays are mounted on this electrical junction box. Therefore, not only the temperature of these relays rises due to self-heating, but also the temperature of the relays is further affected by the heat generation of the adjacent relay. As a result, problems such as the base box and upper cover being melted and the terminals connecting the relays being deteriorated occur. In order to prevent such problems, the size of the wire is increased to reduce the amount of heat generated, and the distance between relays is increased to reduce the effect of radiant heat.

[0003]

[Problems to be solved by the device]

 However, the above-mentioned electric junction box has the following problems. That is, if the wire size is increased, the cost becomes high, and it is difficult to increase the distance between the relays in order to reduce the effect of radiant heat due to space restrictions.

[0004]

[Means and actions for solving the problem]

 The present invention provides an electrical junction box that solves the above problems. In an electrical junction box that includes a base box and an upper cover that covers the base box, and the relay box is equipped with a plurality of relays, the relay boxes are provided between the relays. A partition wall is provided, and the partition wall has a gap between the partition wall and the upper surface of the upper cover. As described above, when the partition wall is provided between the relays, the partition wall blocks the radiant heat between the relays, so that the relay does not receive the radiant heat of another adjacent relay. On the other hand, since there is a gap between the partition wall and the upper surface of the upper cover, air convection occurs and the temperature distribution is made uniform. Therefore, according to the present invention, the interval between adjacent relays can be reduced and the electrical junction box can be downsized.

[0005]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. FIG. 1 is a perspective view of a base box used in an embodiment of an electrical junction box according to the present invention. The outer shape of the base box 1 is the same as the conventional one, but a cross-shaped partition wall 5 is provided between the four relay housings 4 provided inside. The height of the partition wall 5 is set so that a gap is formed between the partition wall 5 and the upper inner surface of the upper cover when the upper cover (not shown) is covered. In the base box 1 as described above, the radiant heat between the four relays is blocked by the partition wall 5, but the temperature distribution due to air convection is not disturbed. FIG. 2 is a perspective view of an upper cover used in another embodiment. The upper cover 2 is provided with a cross-shaped partition wall 5, and a gap is provided between the partition wall 5 and the upper surface inside the upper cover 2. When the upper cover 2 provided with such a partition wall 5 is used, it is not necessary to provide the partition wall 5 in the base box 1 shown in FIG. In the above embodiment, the partition walls are provided between all the relay housings, but partition walls may be partially provided, and the number and shape of the partition walls are not limited to those in the above embodiment.

[0006]

[Effect of device]

 As described above, according to the present invention, in an electrical connection box that includes a base box and an upper cover that covers the base box, and a plurality of relays are mounted in the base box, a partition is provided between the relays. Since the partition wall has an air gap between the partition wall and the upper surface of the upper cover, there is an excellent effect that the relay interval can be reduced and the electrical junction box can be miniaturized without hindering the temperature uniformity due to convection.

[Brief description of drawings]

FIG. 1 is a perspective view of a base box used in an embodiment of an electrical junction box according to the present invention.

FIG. 2 is a perspective view of an upper cover used in another embodiment of the electrical junction box according to the present invention.

FIG. 3 is a perspective view of a conventional electrical junction box.

[Explanation of symbols]

 1 base box 2 upper cover 3 relay 4 relay housing 5 bulkhead

Claims (1)

[Scope of utility model registration request] 1. An electric junction box comprising a base box and an upper cover to cover the base box, wherein a plurality of relays are mounted in the base box, and partition walls are provided between the relays, and the partition walls form an upper surface of the upper cover. An electrical junction box, characterized in that it has an air gap between them.