Toshiba teli BG030 Leitfaden

D4212829A

http://www.toshiba-teli.co.jp/index.htm

CCD Camera

BG B/W Series

BG030

BG031

BG080

BG130

Thermal design manual

Ver.1.0

Information contained in this document is subject to change without prior notice.

D4212829A

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1 Overview

In order to meet the request from customers, this BG B/W series are pursued ultra-compact and a high

frame rate.

However, since the surface area of this camera is small, the heat radiation capability of this camera is

small. Therefore, in a customer's usage environment, it is necessary to radiate the heat of this camera

by thermal radiation, thermal conduction, and convection.

This document instantiates the data for help of a heat radiation design with a customer's machine and

equipment.

2 Specifications

Operation Ambient conditions

Operation assurance Temperature: 0°C to +40 °C, Cam era housing temperature: less than 50 °C

Humidity: 10% to 90% (no condensation)

Notes on Heat Radiation:

The temperature of camera housing must be kept less than 50 °C.

Please provide sufficient heat radiation depending on your installation.

D4212829A

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3 The heat radiating route

The heat radiating route from this camera is Fig. 1.

The heat radiating model of Fig. 1 is shown in Fig. 2.

Ambient temperature [ ℃ ]

Lens Cables Fixed unit

Case temperature [ 50℃ max ]

Inner component

CCD Camera

Tcom

Rcam

Rcam : Thermal resistance inside the camera [℃/W]

Rth : Thermal resistance between the camera and environment [℃/W]

Tcom : Inner component temperature [℃]

Tc : Case temperature of the camera [℃]

Ta : Ambient temperature [℃]

Rth

Fig2. Heat radiating model

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4 Heat radiation concept

4.1 Lens

By using a lens with large surface area, the heat is conducted from the camera to the lens, and the

heat radiation capability improves.

4.2 Cable

By using the shielded cable which strengthened frame GND, the heat is conducted from the

camera to the cable, and the heat radiation capability improves.

4.3 Camera fixed unit

By using a camera fixed unit with large surface area, the heat is conducted from the camera to the

camera fixed unit, and the heat radiation capability improves.

Moreover, by using the camera fixed unit painted black, the heat radiation capability improves.

4.4 Convection

By circulating the air of the ambient environment of a camera, the heat radiation capability

improves.

5 Heat radiation example

Examples measured at our company are shown below. These examples were measured under PoE

power supply.

Camera specification can be satisfied under example conditions.

5.1 Example 1

< Heat radiation conditions >

- Lens : C-mount lens (16mm) *Outside dimension = Φ29mm x L33mm

- LAN Cable / Camera Cable

- Camera fixed unit : Aluminum plate (no paint)

*Outside dimension = H110mm x W110mm x D8mm

- Other : Without air convection. The aluminum plate was installed on the stand without heat

radiation capability.

Camera mode Power consumption Rth Tc Ta

All pixel readout （SXGA 30fps) 3.8W 3.4℃/W 50℃37℃

D4212829A

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5.2 Example 2

< Heat radiation conditions >

- Lens : C-mount lens (16mm) *Outside dimension = Φ29mm x L33mm

- LAN Cable / Camera Cable

- Camera fixed unit : Aluminum plate (Black paint)

*Outside dimension = H120mm x W180mm x D10mm

- Other : Without air convection. The aluminum plate was installed on the stand without heat

radiation capability.

Camera mode Power consumption Rth Tc Ta

All pixel readout （SXGA 30fps) 3.8W 2.8℃/W 50℃39℃

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