Honeycomb heat exchange type control panel heat dissipation device

The honeycomb heat exchanger addresses heat dissipation challenges in control panels by increasing surface area without volume increase, using forced air cooling to enhance efficiency and prevent dust-related problems.

JP2025114427APending Publication Date: 2025-08-05I DOS KIKAKU CO LTD
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Patent Information

Application Number
JP2024018197
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-01-24
Publication Date
2025-08-05

AI Technical Summary

Technical Problem

Existing power control devices in control panels face issues with heat dissipation without ventilation, which can lead to dust accumulation and potential short-circuit fires, and existing solutions like air conditioners or Peltier devices are not suitable due to volume constraints and dust risks.

Method used

A honeycomb heat exchanger is used to increase surface area without increasing volume, combined with forced air cooling using inside and outside air circulation fans to dissipate heat effectively.

Benefits of technology

The honeycomb heat exchanger enhances heat dissipation efficiency by increasing surface area without increasing volume, achieving comparable results to larger panels while avoiding dust-related issues.

✦ Generated by Eureka AI based on patent content.

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Abstract

To dissipate heat generated from an apparatus arranged inside a control panel using a honeycomb heat exchanger constituted of a small diameter pipe of a round shape, a square shape, a hexagonal shape without ventilation.SOLUTION: An inside air circulating blower (3) is attached to an inside air chamber inlet (1). An upper side of an inside air vent pipe (6) of a honeycomb heat exchanger body (5) is joined to a chamber flange (8) by a sealing bush (9) and connected to the inside air chamber inlet. A lower side of the inside air vent pipe (6) is joined to a chamber flange by a sealing bush and a sealing clamp and coupled to an inside air chamber outlet (11). Air inside a control panel is circulated by an inside air circulation blower.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] In order to dissipate the heat generated by the electronic devices inside the control panel without ventilation, a honeycomb heat exchanger is used, with the inside air vent pipes and outside air vent pipes arranged in a checkerboard pattern. The system is separated into an inside air circulation system and an outside air circulation system, and powerful inside air circulation fans and outside air circulation fans are used to circulate the inside air and outside air, thereby performing the heat exchange. By reducing the diameter of the inside air vent pipe and outside air vent pipe, it is possible to obtain a heat exchanger area (surface area) equal to or greater than the surface area of the control panel, with only a few tenths of the volume of the control panel, and this provides the same heat dissipation effect as if the volume of the control panel were increased. Furthermore, by increasing the thermal conductivity of the ventilation pipe material, the heat dissipation effect can be further improved.

[0002] In order to dissipate the heat generated inside the control panel without ventilating it, it is necessary to increase the surface area of the control panel. By installing a honeycomb heat exchanger, it is possible to increase the surface area without increasing the internal volume, thereby improving the efficiency of the heat exchanger. Summary of the Invention Problems that the invention aims to solve

[0003] Power control devices placed inside a control panel need to be placed at a certain distance from each other, and depending on the volume of the control panel, a ventilation fan may be necessary, but in a dusty environment, dust can be drawn into the control panel, causing oxidation and disconnection of electronic circuits, and there is a risk of short-circuit fires due to conductive dust. Therefore, by using a honeycomb heat exchanger to increase the surface area without increasing the volume and by providing forced air cooling, it is possible to dissipate heat from the control panel without using a heat exchanger such as an air conditioner or Peltier.

[0004] An inside air vent pipe that is a certain length longer than the heat exchanger body and an outside air vent pipe of the same length as the heat exchanger are arranged in a checkerboard pattern inside the heat exchanger body, or an outside air vent pipe that is a certain length longer than the heat exchanger body is arranged in a checkerboard pattern inside the heat exchanger body to form an outside air vent pipe, the inside air vent pipes are bundled together with a sealed bushing and attached to the chamber flange with a sealed clamp, an inlet / outlet chamber is attached, the inside air circulation ventilator and outside air vent pipe are bundled together and joined to the inlet / outlet chamber, an outside air circulation ventilator is arranged, air is circulated by the inside air circulation ventilator and outside air circulation ventilator, and heat generated inside the control panel is dissipated.

[0005] By using a honeycomb heat exchanger, the surface area can be increased without increasing the volume of the control panel, improving the surface heat dissipation efficiency. A box that is only a few tens of the size of the control panel can achieve the same heat dissipation effect as if the control panel itself were several times larger. [Brief explanation of the drawings]

[0006] [Figure 1] 1 is a configuration diagram showing a first embodiment of the invention according to this application. DETAILED DESCRIPTION OF THE INVENTION

[0007] The inside air chamber inlet (1) and the inside air circulation blower (3) are attached, and the upper part of the inside air vent pipe (6) of the honeycomb heat exchanger body (5) is bundled and joined to the chamber flange (8) with the sealing bush (9) and sealing bush (10), and connected to the inside air chamber inlet (1) with the chamber packing (13). The bottom of the inside air vent pipe (6) is bundled and connected to the chamber flange (8) with a tight fitting bush (9) and a tight fitting clamp (10), and then connected to the inside air chamber outlet (2) with a chamber packing (13). An outdoor air circulation fan (4) is installed at the outdoor air chamber inlet (2) and connected to the upper side of the outdoor air vent pipe (7) of the honeycomb heat exchanger body (5), and the lower side of the outdoor air vent pipe (7) is connected to the outdoor air chamber outlet (12). [Explanation of symbols]

[0008] 1. Inside air chamber inlet 2. Fresh air chamber inlet 3 Internal air circulation fan 4. Fresh air circulation fan 5. Honeycomb heat exchanger body 6. Internal air vent pipe 7. Outside air vent pipe 8 Chamber flange 9 Sealing bushing 10 Sealing Clamp 11 Inside air chamber outlet 12 Outside air chamber outlet 13 Flange packing

Claims

1. This honeycomb heat exchanger type control panel heat dissipation device uses a honeycomb heat exchanger in which inside air vent pipes and outside air vent pipes are arranged in a checkerboard pattern inside the heat exchanger body, and is grouped together for each inside air vent pipe and outside air vent pipe, connected to the inside air chamber inlet / outlet and the outside air chamber inlet / outlet, and is equipped with an inside air circulation blower and an outside air circulation blower.

2. This honeycomb heat exchanger type control panel heat dissipation device is configured by alternately arranging inside air vent pipes and outside air vent pipes in a checkerboard pattern, or by outside air vent pipes formed by fitting inside air vent pipes in a checkerboard pattern in the heat exchanger main body, forming a honeycomb structure, grouping the inside air vent pipes together to form an inside air circulation system, and grouping the outside air vent pipes together to form an outside air circulation system, and performing heat exchange via closely spaced vent pipes.

3. The inside air vent pipe is integrated with a sealed bush, a chamber flange is attached, sealed with a tight clamp, and connected to the inlet and outlet chambers with tight packing to form a honeycomb heat exchanger that isolates the inside air from the outside air. This is a honeycomb heat exchanger type control panel heat dissipation device.

4. This honeycomb heat exchange type control panel heat dissipation device can easily expand the heat exchange area by reducing the diameter of round, square, and hexagonal ventilation pipes and arranging them closely together, thereby expanding the surface area as much as possible relative to the volume.