WO2021238239A1 - 内窥镜插入部散热结构 - Google Patents

内窥镜插入部散热结构 Download PDF

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Publication number
WO2021238239A1
WO2021238239A1 PCT/CN2021/072722 CN2021072722W WO2021238239A1 WO 2021238239 A1 WO2021238239 A1 WO 2021238239A1 CN 2021072722 W CN2021072722 W CN 2021072722W WO 2021238239 A1 WO2021238239 A1 WO 2021238239A1
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Prior art keywords
heat
heat transfer
insertion part
dissipation structure
insertion portion
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PCT/CN2021/072722
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English (en)
French (fr)
Inventor
顾良
李苏云
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卓外（上海）医疗电子科技有限公司
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Priority claimed from CN202020895136.4U external-priority patent/CN212546878U/zh
Priority claimed from CN202010451100.1A external-priority patent/CN113712486A/zh
Application filed by 卓外（上海）医疗电子科技有限公司 filed Critical 卓外（上海）医疗电子科技有限公司
Priority to DE212021000317.6U priority Critical patent/DE212021000317U1/de
Publication of WO2021238239A1 publication Critical patent/WO2021238239A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
    • A61B1/128—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements provided with means for regulating temperature

Definitions

  • the invention belongs to the field of endoscopes, and particularly relates to a heat dissipation structure of an insertion part of an endoscope.
  • An endoscope is a small electronic medical device.
  • various electronic devices are placed in the insertion part of the endoscope.
  • Some electronic devices in the insertion part of the endoscope constitute a heat source, and the internal design space is limited, which easily leads to heat concentration, not only easy to cause the device The shortened lifespan will also cause certain harm to the human body.
  • most endoscopes have incomplete heat dissipation design. There is no heat conduction design or only conducts heat in a small area. Most endoscopes sacrifice image performance and reduce power consumption to ensure the operating temperature of the equipment.
  • the purpose of the present invention is to provide a heat dissipation structure for the insertion part of an endoscope, which can dissipate the temperature of the front end of the insertion part to the back in time, avoid the concentration of heat at the front end, and realize the uniform distribution of heat throughout the insertion part, which improves
  • the working environment of the electronic device is convenient to manufacture and install and unload, and the cost is low.
  • a heat dissipation structure for an insertion part of an endoscope comprising a heat transfer tube extending from the front end to the back end of the insertion part, and a heat source, a heat conduction sheet, a heat conduction sheet pressing block and a heat transfer bracket at the front end of the insertion part;
  • the tight surface presses the front end of the heat transfer sheet against the back of the heat source, the back end of the heat transfer sheet bypasses the heat transfer sheet pressing block and extends to the heat absorption surface of the heat transfer bracket and is fixed in close contact with the heat transfer bracket and the heat transfer tube.
  • the heat generated by the heat source is uniformly distributed to the entire insertion part after sequentially passing through the heat conducting sheet, the heat transfer bracket and the heat transfer tube with high thermal conductivity.
  • it further comprises a heat preservation material at the front end of the insertion part, and the heat preservation material is used for isolating the heat source and heat transfer between the heat transfer bracket and the outer tube of the insertion part.
  • the heat preservation material is a plastic material.
  • the front end of the heat transfer bracket is matched with the mounting hole on the thermally conductive sheet pressing block through the mounting shaft.
  • the mounting hole on the thermal conductive sheet compression block and the compression surface are connected by cantilever structures on both sides, the thermal conductive sheet passes between the cantilever structures on both sides, and the cantilever structure is used to bear the thermal conductivity of the thermal conductive sheet compression block.
  • the main pressure is used to bear the thermal conductivity of the thermal conductive sheet compression block.
  • the rear end of the heat transfer bracket is in interference fit with the heat transfer tube through the connecting surface.
  • the heat absorption surface is located on the outside of the heat transfer bracket, and the front side, or the front side and the back side of the heat absorption surface on the heat transfer bracket are provided with inclined surfaces for the natural transition of the thermal conductive sheet.
  • the heat-conducting sheet is made of a sheet-like flexible heat-conducting material with a single-sided adhesive, and the heat transfer bracket and the heat transfer tube are made of high-strength metal or non-metal heat-conducting materials.
  • the outer surface of the heat transfer tube is covered with a thermally conductive sheet for auxiliary heat dissipation.
  • This structure can dissipate the temperature of the front end of the insertion part to the rear end in time, avoiding the concentration of heat at the front end, and realize the uniform distribution of heat throughout the insertion part, which improves the working environment of the electronic device; the structure is relatively simple, and it is convenient to manufacture and assemble and disassemble. low cost.
  • Fig. 1 is a longitudinal sectional view of an embodiment of the present invention.
  • Fig. 2 is a partial enlarged view of Fig. 1.
  • Fig. 3 is a schematic diagram of the structure of the thermal conductive sheet pressing block in Fig. 1.
  • Fig. 4 is a schematic diagram of the structure of the heat transfer bracket in Fig. 1.
  • a heat dissipation structure for the insertion part of an endoscope includes a heat transfer tube 1 extending from the front end to the rear end of the insertion part, a heat source 5 located at the front end of the insertion part, a thermal conductive sheet 3, and a thermal conductive sheet pressing block 4 and the heat transfer bracket 2; the thermal conductive sheet pressing block 4 presses the front end of the thermal conductive sheet 3 on the back of the heat source 5 through the pressing surface 43, and the rear end of the thermal conductive sheet 3 bypasses the thermal conductive sheet pressing block 4 and extends to the heat transfer bracket
  • the heat-absorbing surface 23 of 2 is attached and fixed, the heat transfer bracket 2 is attached to the heat transfer tube 1, and the heat generated by the heat source 5 passes through the heat conducting sheet 3 with high thermal conductivity, the heat transfer bracket 2 and the heat transfer tube 1 in turn.
  • This structure can dissipate the temperature of the front end of the insertion part to the rear end in time, avoiding the concentration of heat at the front end, and realize the uniform distribution of heat throughout the insertion part, which improves the working environment of the electronic device; the structure is relatively simple, and it is convenient to manufacture and assemble and disassemble. low cost.
  • the structure further includes a thermal insulation material 6 located at the front end of the insertion part, and the thermal insulation material 6 is used to isolate the heat source 5 and the heat transfer between the heat transfer bracket 2 and the outer tube 7 of the insertion part.
  • the thermal insulation material 6 is preferably a plastic material.
  • the rear end of the heat transfer bracket 2 is in interference fit with the heat transfer tube 1 through the connecting surface 24, and there is no gap, which improves the heat transfer efficiency.
  • the outer surface of the heat transfer tube 1 is covered with a thermally conductive sheet 3 for auxiliary heat dissipation.
  • the front end of the heat transfer bracket 2 is matched with the mounting hole 41 on the thermally conductive sheet pressing block 4 through the mounting shaft 21, which plays a role in positioning and ensures the thermal conductive sheet 3 Installation accuracy.
  • the mounting hole 41 on the thermally conductive sheet pressing block 4 and the pressing surface 43 are connected by the cantilever structures 42 on both sides, and the thermally conductive sheet 3 is separated from the cantilever structures 42 on both sides. Passing through, the cantilever structure 42 is used to bear the main pressure of the thermally conductive sheet pressing block 4.
  • the heat absorption surface 23 is located outside the heat transfer bracket 2, the front side of the heat absorption surface 23 on the heat transfer bracket 2, or the front side and the back side,
  • the inclined surface 22 for the natural transition of the thermal conductive sheet 3 is provided to avoid bending damage of the thermal conductive sheet 3.
  • the thermal conductive sheet 3 preferably adopts a single-sided adhesive-backed sheet-like flexible thermal conductive material, and the heat transfer bracket 2 and the heat transfer tube 1 preferably use high-strength metal or non-metal thermal conductive materials.

Abstract

一种内窥镜插入部散热结构，包括从插入部前端延伸至后端的传热管（1）以及位于插入部前端的热源（5）、导热片（3）、导热片压紧块（4）和传热支架（2）；导热片压紧块（4）通过压紧面（43）将导热片（3）前端贴合压在热源（5）背面，导热片（3）后端绕过导热片压紧块（4）后延伸至传热支架（2）的吸热面（23）且贴合固定，传热支架（2）与传热管（1）贴合固定。热源（5）产生的热量依次通过导热效率高的导热片（3）、传热支架（2）和传热管（1）后均布至整个插入部，该结构能将插入部前端温度及时散至后端，避免了热量集中在前端，而且能实现整个插入部的热量均布，提高了电子器件的工作环境，制作和装卸方便，成本低。

Description

内窥镜插入部散热结构 技术领域
本发明属于内窥镜领域，尤其涉及一种内窥镜插入部散热结构。
背景技术
内窥镜属于小型的电子医疗设备，一般在其插入部内安放有各种电子器件，内窥镜插入部内的部分电子器件构成发热源，而内部设计空间有限，容易导致热量集中，不仅容易导致器件寿命减短，对于人体也会造成一定的危害。目前的多数内窥镜内部的散热设计并不完善，没有热传导的设计或者只在小范围内传导热量，多数是通过牺牲图像性能、降低功耗来保证设备使用温度。
发明内容
本发明的目的是提供一种内窥镜插入部散热结构，该结构能将插入部前端温度及时散至后端，避免了热量集中在前端，而且能实现整个插入部的热量均布，提高了电子器件的工作环境，制作和装卸方便，成本低。
本发明所采用的技术方案是：
一种内窥镜插入部散热结构，包括从插入部前端延伸至后端的传热管以及位于插入部前端的热源、导热片、导热片压紧块和传热支架；导热片压紧块通过压紧面将导热片前端贴合压在热源背面，导热片后端绕过导热片压紧块后延伸至传热支架的吸热面且贴合固定，传热支架与传热管贴合固定，热源产生的热量依次通过导热效率高的导热片、传热支架和传热管后均布至整个插入部。
优选地，还包括位于插入部前端的保温材料，保温材料用于隔断热源和传热支架与插入部外管的热传递。
进一步地，保温材料为塑胶材料。
优选地，传热支架前端通过安装轴与导热片压紧块上的安装孔配合。
进一步地，导热片压紧块上的安装孔和压紧面之间通过两侧的悬臂结构连接，导热片从两侧的悬臂结构之间穿过，悬臂结构用于承担导热片压紧块的主压力。
优选地，传热支架后端通过连接面与传热管过盈配合。
优选地，吸热面位于传热支架的外侧，传热支架上吸热面的前侧，或者前侧和后侧，设有用于导热片自然过渡的斜面。
优选地，导热片采用单面背胶的薄片状柔性导热材料，传热支架和传热管采用强度高的金属或非金属导热材料。
优选地，传热管外表面贴覆有用于辅助散热的导热片。
本发明的有益效果是：
该结构能将插入部前端温度及时散至后端，避免了热量集中在前端，而且能实现整个插入部的热量均布，提高了电子器件的工作环境；该结构比较简单，制作和装卸方便，成本低。
附图说明
图1为本发明实施例的纵剖图。
图2为图1的局部放大图。
图3为图1中导热片压紧块的结构示意图。
图4为图1中传热支架的结构示意图。
图中：1-传热管；2-传热支架；21-安装轴；22-斜面；23-吸热面；24-连接面；3-导热片；4-导热片压紧块；41-安装孔；42-悬臂结构；43-压紧面；5-热源；6-保温材料；7-插入部外管。
具体实施方式
下面结合附图和实施例对本发明作进一步说明。
如图1至图4所示，一种内窥镜插入部散热结构，包括从插入部前端延伸至后端的传热管1以及位于插入部前端的热源5、导热片3、导热片压紧块4和传热支架2；导热片压紧块4通过压紧面43将导热片3前端贴合压在热源5背面，导热片3后端绕过导热片压紧块4后延伸至传热支架2的吸热面23且贴合固定，传热支架2与传热管1贴合固定，热源5产生的热量依次通过导热效率高的导热片3、传热支架2和传热管1后均布至整个插入部。该结构能将插入部前端温度及时散至后端，避免了热量集中在前端，而且能实现整个插入部的热量均布，提高了电子器件的工作环境；该结构比较简单，制作和装卸方便， 成本低。
如图1和图2所示，在本实施例中，该结构还包括位于插入部前端的保温材料6，保温材料6用于隔断热源5和传热支架2与插入部外管7的热传递，进一步避免了前端温度过高；保温材料6优选为塑胶材料。
如图1和图2所示，在本实施例中，传热支架2后端通过连接面24与传热管1过盈配合，没有间隙，提高了热传导效率。
如图1和图2所示，在本实施例中，传热管1外表面贴覆有用于辅助散热的导热片3。
如图1至图4所示，在本实施例中，传热支架2前端通过安装轴21与导热片压紧块4上的安装孔41配合，起到了定位的作用，保证了导热片3的安装精度。
如图3所示，在本实施例中，导热片压紧块4上的安装孔41和压紧面43之间通过两侧的悬臂结构42连接，导热片3从两侧的悬臂结构42之间穿过，悬臂结构42用于承担导热片压紧块4的主压力。
如图1、图2和图4所示，在本实施例中，吸热面23位于传热支架2的外侧，传热支架2上吸热面23的前侧，或者前侧和后侧，设有用于导热片3自然过渡的斜面22，避免导热片3弯折损伤。
在本实施例中，导热片3优选采用单面背胶的薄片状柔性导热材料，传热支架2和传热管1优选采用强度高的金属或非金属导热材料。
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，可做出很多改进形式，均属于本发明的保护之内。

Claims (9)

  1. 一种内窥镜插入部散热结构，其特征在于：包括从插入部前端延伸至后端的传热管以及位于插入部前端的热源、导热片、导热片压紧块和传热支架；导热片压紧块通过压紧面将导热片前端贴合压在热源背面，导热片后端绕过导热片压紧块后延伸至传热支架的吸热面且贴合固定，传热支架与传热管贴合固定，热源产生的热量依次通过导热效率高的导热片、传热支架和传热管后均布至整个插入部。
  2. 如权利要求1所述的内窥镜插入部散热结构，其特征在于：还包括位于插入部前端的保温材料，保温材料用于隔断热源和传热支架与插入部外管的热传递。
  3. 如权利要求2所述的内窥镜插入部散热结构，其特征在于：保温材料为塑胶材料。
  4. 如权利要求1所述的内窥镜插入部散热结构，其特征在于：传热支架前端通过安装轴与导热片压紧块上的安装孔配合。
  5. 如权利要求4所述的内窥镜插入部散热结构，其特征在于：导热片压紧块上的安装孔和压紧面之间通过两侧的悬臂结构连接，导热片从两侧的悬臂结构之间穿过，悬臂结构用于承担导热片压紧块的主压力。
  6. 如权利要求1所述的内窥镜插入部散热结构，其特征在于：传热支架后端通过连接面与传热管过盈配合。
  7. 如权利要求1所述的内窥镜插入部散热结构，其特征在于：吸热面位于传热支架的外侧，传热支架上吸热面的前侧，或者前侧和后侧，设有用于导热片自然过渡的斜面。
  8. 如权利要求1所述的内窥镜插入部散热结构，其特征在于：导热片采用单面背胶的薄片状柔性导热材料，传热支架和传热管采用强度高的金属或非金属导热材料。
  9. 如权利要求1所述的内窥镜插入部散热结构，其特征在于：传热管外表面贴覆有用于辅助散热的导热片。
PCT/CN2021/072722 2020-05-25 2021-01-19 内窥镜插入部散热结构 WO2021238239A1 (zh)

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CN202020895136.4U CN212546878U (zh) 2020-05-25 2020-05-25 内窥镜插入部散热结构
CN202010451100.1 2020-05-25
CN202020895136.4 2020-05-25
CN202010451100.1A CN113712486A (zh) 2020-05-25 2020-05-25 内窥镜插入部散热结构

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CN105411507A (zh) * 2010-09-29 2016-03-23 富士胶片株式会社 内窥镜设备和用于释放由内窥镜设备的成像元件产生的热量的方法
CN103476319A (zh) * 2011-07-19 2013-12-25 奥林巴斯医疗株式会社 内窥镜装置
JP5747351B2 (ja) * 2011-12-07 2015-07-15 オリンパス株式会社 内視鏡
CN203341708U (zh) * 2012-03-26 2013-12-18 富士胶片株式会社 内窥镜
CN109124548A (zh) * 2018-07-09 2019-01-04 卓外（上海）医疗电子科技有限公司 具备良好热处理的电子内窥镜

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