JPH1076854A - Mounting structure of heat generation part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent heating of a heat generation part efficiently by providing a ventilation hole for introducing external air into a bottom face of a heat generation part storage chamber. SOLUTION: A ventilation hole 12 is formed like a knotched section at substantially the center of a bottom face of a battery storage chamber, and the battery storage chamber is opened downward (ground surface side) through the ventilation hole 12. A mounting base seat 13 is attached to an inner side (upper side) of this ventilation hole 12 in such a manner that it covers the whole ventilation hole 12. Both end parts of this mounting base seat 13 are folded downward to form leg parts 13a, 13a, both leg parts 13a, 13a are welded along side parts on the right and left of the ventilation hole 12, and the mounting base seat 13 is attached on an inner side of the ventilation hole 12 across a fixed interval. A transformer 14 for charging as a heat generation part is attached on a top face of the mounting base seat 13 which is attached in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a heat-generating component such as a charging transformer in a battery-powered forklift. In the following description,
Components that need to be actively cooled to prevent overheating are called "heating components."

[0002]

2. Description of the Related Art In general, a charging transformer generates heat during charging, and therefore is likely to overheat when it is installed in a small space. However, in a small battery-powered forklift, for example, the space for mounting the forklift is limited to a narrow place. For this reason, in a conventional small battery-type forklift, it has been difficult to mount such a heat-generating component in a limited space while reliably preventing overheating of the heat-generating component. Therefore, a small battery-type forklift employs a configuration in which the charging device is installed outside the machine stand.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a heat-generating component mounting structure capable of mounting such a heat-generating component in a limited space while reliably preventing overheating.

[0004]

For this purpose, in the mounting structure according to the first aspect, a ventilation hole for introducing outside air is provided on the bottom surface of the heat generating component storage chamber, and a mounting pedestal is provided inside the ventilation hole. Provided in a covering manner at an interval with respect to the ventilation hole,
A heat-generating component is mounted on the mounting base.

According to this mounting structure, since the mounting pedestal is provided so as to cover the ventilation hole, intrusion of water into the heat-generating component storage chamber is prevented. Since the ventilation holes are provided on the bottom surface, the water is easily drained. On the other hand, since the mounting pedestal is provided at a distance from the ventilation hole, the outside air is easily introduced into the heating component storage chamber through the ventilation hole, so that even if the heating component storage room is a narrow space. In addition, the ventilation of the storage room is smoothly performed, so that the overheating of the heat-generating component can be efficiently prevented.

According to a second aspect of the present invention, a ventilation hole for introducing outside air is provided on the bottom surface of the battery storage compartment of the battery type forklift, and a mounting base is provided inside the ventilation hole with respect to the ventilation hole. A heat-generating component is mounted on the mounting base at intervals.

According to this mounting structure, since the mounting pedestal is provided so as to cover the ventilation hole, the intrusion of water into the battery storage chamber is prevented, and even if it does, it is possible to prevent the water from entering. Since the pores are provided on the bottom surface, the water is easily drained. On the other hand, since the mounting pedestal is provided at an interval with respect to the ventilation hole, outside air is easily introduced into the battery storage room through the ventilation hole, and thereby the ventilation of the storage room is smoothly performed. Even if the heat generating component is mounted in a narrow space in the battery storage room, overheating can be efficiently prevented.

[0008] In the two mounting structures according to the first and second aspects, the heat-generating components include hydraulic components such as an oil cooler in addition to the electrical components such as the charging transformer.
All components that need to be actively cooled to prevent overheating are covered.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS.
A description will be given based on FIG. FIG. 1 shows the whole battery-powered forklift 1. 2 is a handle in the figure, 3
Denotes a cabin, 4 denotes a fork, 5 denotes a mast for supporting the same in a vertically movable manner, 6 denotes a body frame, and 7 denotes a weight disposed at a rear portion thereof. A battery storage room 8 is provided at the center of the body frame 6 and between both side frames 6a, 6a, in which two battery cases B, B are stored. A battery (not shown) is housed.

The battery storage chamber 8 has a front cross plate 10 on the front side, a rear cross plate 11 on the rear side, and side members 6a, 6 on the left and right sides.
6a. Further, as shown in FIG. 3, the cabin 3
Is normally closed by the toe board 9 which forms the floor of the vehicle, and the toe board 9 is opened at the time of charging.

A recess 10a, 11a is formed in the center of the upper edge of each of the cross plates 10, 11 in a cut shape. Although not shown, a chain or a chain constituting a steering system passes through the recess 10a, 11a. Various electric wiring, hydraulic piping, and the like pass through the battery storage room 8.

Further, through these concave portions 10a, 11a,
The upper part of the battery storage room 8 communicates with the outside.

Next, a vent hole 12 is formed in a notch shape substantially at the center of the bottom surface of the battery storage room 8, and the battery storage room 8 is opened downward (toward the ground) through the vent hole 12. .

A mounting pedestal 13 is attached to the inside (upper side) of the ventilation hole 12 so as to cover the entire ventilation hole 12. Both ends of the mounting pedestal 13 are bent downward to form legs 13a, 13a, and both legs 13a, 13a are welded along the left and right sides of the ventilation hole 12, so that the mounting pedestal 13 is attached to the ventilation hole 12a. It is attached at a fixed interval inside the.

A charging transformer 14 as a heat-generating component is mounted on the upper surface of the mounting base 13 thus mounted.

According to the mounting structure configured as described above, since the mounting base 13 is provided so as to cover the ventilation hole 12, water is prevented from entering the battery storage chamber 8, and if the mounting base 13 is provided, Even in the case of intrusion, since the ventilation holes 12 are provided on the bottom surface, the water is easily drained.

On the other hand, the mounting pedestal 13 is provided at a fixed distance from the ventilation hole 12 (the ventilation hole 12 is not closed by the mounting pedestal 13). The outside air is easily introduced into the inside 8. For this reason, even if the charging transformer 14 is installed in a narrow space between the battery cases B, B, the ventilation of the battery storage room 8 is performed smoothly, so that the overheating of the charging transformer 14 can be efficiently prevented. .

The outside air introduced into the battery storage chamber 8 through the ventilation hole 12 is discharged to the outside of the battery storage chamber 8 through the recesses 10a and 11a as shown by arrows in FIG. The flow of outside air from the bottom to the top is ensured.

Various modifications can be made to the embodiment described above. For example, the charging transformer 14 is illustrated as a heat-generating component, but the present invention can be widely applied to other electric components such as a motor, hydraulic components such as an oil cooler, and other components that generate heat during use and need to be actively cooled. .

Although the vent hole 12 has been described as being opened in a substantially rectangular shape, the vent hole 12 may have another shape such as a circular hole, and a net or a net for more reliably preventing foreign matter from entering the vent hole. A door may be attached, and it is essential that the outside air be easily introduced.

The mounting pedestal 13 is not limited to the illustrated embodiment. For example, the mounting pedestal is provided in an overhanging manner from the side of the battery case B, and a predetermined interval is provided above the ventilation hole. It may be provided to cover.

[Brief description of the drawings]

FIG. 1 is an overall side view of a battery-powered forklift.

FIG. 2 is a cross-sectional view of a battery storage room.

FIG. 3 is a longitudinal sectional view of a battery storage room.

FIG. 4 is a perspective view of a battery storage room. In this drawing, the flow of outside air is indicated by arrows.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Battery type forklift 6 ... Body frame, 6a ... Side frame 8 ... Battery storage room 9 ... Toe board 10 ... Front cross plate 11 ... Rear cross plate 12 ... Vent hole 13 ... Mounting pedestal 14 ... Charging transformer (heat generating component)

Claims (2)

[Claims] 1. A ventilation hole for introducing outside air is provided on a bottom surface of a heat-generating component storage chamber, and a mounting pedestal is provided inside the ventilation hole at a distance from the ventilation hole so as to cover it.
A heat generating component mounting structure, wherein a heat generating component is mounted on the mounting base. 2. A vent hole for introducing outside air is provided on a bottom surface of a battery storage compartment of a battery type forklift,
A mounting structure for a heat-generating component, wherein a mounting pedestal is provided inside the ventilation hole so as to cover at a distance from the ventilation hole, and a heat-generating component is mounted on the mounting pedestal.