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Cooling device and endoscope light source device

A technology of a cooling device and a light source device, which is applied in the directions of endoscope, installation, optics, etc., can solve the problems of decreased cooling efficiency, hindered miniaturization of the cooling device and light source device for endoscope, and rising air temperature, etc.

Active Publication Date: 2017-09-26
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In a cooling device for cooling a plurality of solid-state light-emitting elements, for example, when a plurality of heat dissipation parts are arranged along the flow direction in a flow path, the temperature of the air rises toward the downstream side, resulting in a decrease in cooling efficiency.
Decreased cooling efficiency leads to an increase in the size of the heat dissipation unit, which hinders the miniaturization of the cooling device and the light source device for endoscopes

Method used

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  • Cooling device and endoscope light source device
  • Cooling device and endoscope light source device
  • Cooling device and endoscope light source device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0018] The endoscope light source device 1 of the present embodiment is a device that emits light for illuminating an object to be observed through the endoscope 100 . The endoscope 100 has a configuration for optically imaging a predetermined observation site in a subject such as a human body or a structure, and outputting the image to a display device (not shown). The structure of the endoscope 100 is well known, and thus description thereof will be omitted.

[0019] Such as figure 1 As shown, the light source device 1 for an endoscope has a connector part 2 connected to a plug part 101 provided in an endoscope 100 . The connector unit 2 is provided on the housing front surface 1 a of the light source device 1 for an endoscope. A first end portion 102 a of an optical fiber cable 102 inserted into the endoscope 100 is arranged in the plug portion 101 . The light incident on the first end portion 102a of the optical fiber cable 102 is emitted toward the subject of the endos...

no. 2 approach

[0072] Next, a second embodiment of the present invention will be described. Hereinafter, only the points of difference from the first embodiment will be described, and the same reference numerals will be assigned to the same components as those in the first embodiment, and descriptions thereof will be appropriately omitted.

[0073] Figure 6 It is a diagram showing the arrangement of the power supply unit 3 , the control unit 4 , and the light source drive unit 5 in the casing of the light source device 1 for an endoscope. Figure 6 It is a diagram when the inside of the casing of the light source device 1 for an endoscope is viewed from above.

[0074] Such as Figure 6 As shown, on the right side of the illuminating light emitting device 10 ( Figure 6 The lower part of the middle) is equipped with a power supply unit 3 . The external shape of the power supply part 3 is a box shape, and has a power supply circuit inside. The external shape of the power supply unit 3 i...

no. 3 approach

[0082] Next, a third embodiment of the present invention will be described. Hereinafter, only the points of difference from the first embodiment will be described, and the same reference numerals will be assigned to the same components as those in the first embodiment, and descriptions thereof will be appropriately omitted.

[0083] Figure 7 It is a sectional view of the vicinity of the connector part 2 of the light source device 1 for an endoscope. Such as Figure 7 As shown, the connector part 2 holds the plug part 101 of the endoscope 100 in a state where the plug part 101 is inserted so that the first end part 102a of the optical fiber cable 102 is located near the focal point of the converging lens 104 of the illumination light emitting device 10 .

[0084] The outer peripheral portion of the optical fiber cable 102 near the first end portion 102 a is covered with a cylindrical connector 103 . The connector part 2 has a joint abutment part 2 a against which the end su...

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PUM

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Abstract

A cooling device in which heat generated by a plurality of heat generating parts is radiated in a cooling medium in a plurality of radiating parts provided so as to correspond respectively to the plurality of heat generating parts, wherein the cooling device includes a first radiating part provided so as to correspond to a first heat generating part having the smallest value of a radiation performance index calculated by dividing the temperature increase amount during maximum heat generation of a heat generating part among the plurality of heat generating parts by the maximum heat generation amount, a second radiating part provided so as to correspond to a second heat generating part having the second smallest value of the radiation performance index, a first flow path in which the first radiating part is positioned and through which the cooling medium passes, and a second flow path in which the second radiating part is positioned and which is independent of the first flow path through which the cooling medium flows.

Description

technical field [0001] The present invention relates to a cooling device for cooling a plurality of heat generating parts, and a light source device for an endoscope. Background technique [0002] For example, as disclosed in Japanese Patent Laid-Open No. 2013-215435, a light source device for an endoscope including a plurality of solid light emitting elements such as LEDs and laser diodes is known. [0003] Since the solid light emitting element generates heat during driving, when the solid light emitting element is used as a light source in the endoscope light source device, it is necessary to provide a cooling device for cooling the solid light emitting element. As a cooling device for cooling a plurality of solid-state light-emitting elements, a configuration is considered in which a plurality of heat-dissipating parts such as heat sinks provided for each solid-state light-emitting element are disposed in a flow path through which air as a cooling medium flows. [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B1/06G02B23/26
CPCA61B1/06G02B23/26G02B7/008G02B23/2469G02B27/145A61B1/00117A61B1/00126A61B1/0669A61B1/0684A61B1/128
Inventor 代田雄高渡部正晃
Owner OLYMPUS CORP