JP2001341949A - Elevator control board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thin and inexpensive elevator control board. SOLUTION: This elevator control board 1 for internally storing a heat pipe cooler is constituted such that opening parts are arranged in two surfaces opposed at the shortest distance in parallel to the vertical direction on this elevator control board, and a heat radiating fin part 4 and a cooling fan 5 of the heat pipe cooler are arranged between the opening parts, and a cooling wind taken in from one of the opening parts by the cooling fan is blown off from the other opening part by passing through the heat radiating fin part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator control device, and more particularly to a thin control panel installed in a hoistway.

[0002]

2. Description of the Related Art Japanese Patent Laid-Open Publication No. Sho 60-180484 relates to an elevator control device, which effectively cools a semiconductor element, a capacitor, and a resistor for regenerative power consumption of a control device for controlling a three-phase induction motor for driving an elevator. A preferred cooling device is described.

[0003]

Conventionally, as shown in FIG. 5, there was no space restriction on the control panel 1 so that the control panel 1
There was no problem even if the volume was large. In addition, a large-sized heat sink made of inexpensive aluminum or the like is used without any restrictions on the space of the heat sink 11, and the semiconductor element 2 is mounted thereon.

[0004] Such a heat sink requires a certain volume in order to secure the cooling capacity, and has been a bottleneck in making the control panel thinner.

An object of the present invention is to provide a thin and inexpensive elevator control panel.

[0006]

SUMMARY OF THE INVENTION In an elevator control panel having a heat pipe type cooler built therein, the elevator control panel is opposed to the elevator control panel in the vertical direction and at the shortest distance.
An opening is provided on one surface, and the radiating fins of the heat pipe cooler and the cooling fan are arranged between the openings,
The cooling fan is configured such that cooling air taken in from one of the openings by the cooling fan passes through the radiation fins and is discharged from the other opening.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a main circuit of an elevator has a main circuit element 2, which is a heating element, a block portion 3 of a heat pipe cooler on which the main circuit element is mounted, and a heat pipe for cooling the main circuit. These main circuits are formed by a fin portion 4 of the cooler and a fan 5 for forcibly cooling the fin portion. FIG. 2 shows a control panel, which is divided into a control panel main body 9 and a maintenance and inspection door 10.
The opening 6 is provided in parallel with the vertical direction of the control panel and at the shortest distance. FIG. 3 shows a main circuit. The cooling unit is composed of a fan 5, a duct 8 and a fin 4. The duct 8 is installed so as to cover the fin 4 so that cooling air does not enter the control panel from the fin 4. You. The duct 8 has an effect of reducing the loss of the wind speed of the cooling air to improve the cooling effect, and an effect of improving the reliability by preventing dust and dust contained in the outside air from being mixed into the control panel. The cooling unit is the opening 6 in the control panel of FIG.
The cooling air taken in from one of the openings by the fan 5 is quickly discharged from the other opening through the radiation fins 4. Further, since the fan 5 is attached to the maintenance inspection door side and has a structure that is easy to remove as shown in FIG. 3, when the fan 5 breaks down, replacement is easy and excellent in maintainability. The installation of the fan 5 is considered to blow the cooling air from the fin 4 in the direction of the fan 5 and in the opposite direction. However, in the method described later, since the swirling flow of the fan hits the fin and a pressure loss occurs, Blowing in the direction of the fan 5 from the fin 4 increases the cooling capacity.
FIG. 4 shows a single heat pipe cooler, which comprises a block 3, fins 4 and a heat pipe 7.

[0008]

As described above, the provision of the duct in the cooling section reduces the loss of the velocity of the cooling air to improve the cooling effect, and prevents the dust and dirt contained in the outside air from being mixed into the control panel. This has the effect of improving reliability.
In addition, since the fan is attached to the maintenance inspection door and has a structure that is easy to remove, the fan can be easily replaced when it breaks down, and the maintenance is excellent. As described above, according to the present invention, it is possible to enhance the cooling effect with a simple configuration, and to form an inexpensive and thin control panel having excellent reliability and maintainability.

[Brief description of the drawings]

FIG. 1 is a perspective view of a control panel containing a main circuit of the present invention.

FIG. 2 is a diagram showing a control panel main body and a control panel maintenance / inspection door of the present invention.

FIG. 3 is a diagram showing a cooling unit of the cooler for each component.

FIG. 4 is a view showing a heat pipe cooler of the present invention.

FIG. 5 is a diagram showing an example of a conventional cooler.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Control panel, 2 ... Main circuit element, 3 ... Heat pipe cooler block part, 4 ... Heat pipe cooler fin part, 5 ... Fan, 6 ... Opening, 7 ... Heat pipe, 8 ... Duct, 9
... control panel body, 10 ... control panel maintenance and inspection door, 11 ... heat sink.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tadashi Ariki 832-2 Himeguchi Service, Horiguchi, Hitachinaka City, Ibaraki Prefecture (72) Inventor Shunsuke Mine 1070 Ma, Hitachinaka City, Ibaraki Prefecture Hitachi, Ltd. In-house elevator group (72) Inventor Koichi Sato 1070 Ma, Hitachinaka-shi, Ibaraki F-term in Hitachi, Ltd. elevator group (reference) 3F002 GA00

Claims (4)

[Claims] 1. An elevator control panel incorporating a heat pipe type cooler, wherein an opening is provided on two surfaces of the elevator control panel parallel to each other in a vertical direction and at a short distance, and between the openings. In addition to arranging the radiating fins and the cooling fan of the heat pipe cooler, the cooling fan takes in cooling air taken in from one of the openings through the radiating fins and is discharged from the other opening. Elevator control panel. 2. The elevator control panel according to claim 1, wherein one of the openings provided in the control panel is a door surface provided for maintenance and inspection, and the other is a surface facing the door surface. 3. The control panel for an elevator according to claim 1, wherein the cooling fan is installed between a maintenance inspection door surface of the control panel and a radiation fin portion. 4. The cooling fan according to claim 1, wherein the cooling fan covers the outer periphery of the radiating fin portion so that cooling air taken in from one of the openings is discharged from the other opening through the radiating fin. An elevator control panel, characterized in that: