CN116008341A - Thermal insulation box temperature control conduction detection device - Google Patents

Abstract

Translated fromChinese

本发明旨在提供一种热量沿着单一方向的传导、实时监测产品上下温度及导热速度且能够精准测出产品热阻的保温盒子温度控制传导检测装置。本发明包括上盒子和位于所述上盒子正下方的下盒子，所述上盒子与所述下盒子的对立端均开设有开口，所述上盒子内设置有内盒子，所述内盒子的底部设有开口，所述下盒子内设置有所述内框，所述内盒子的内部从上至下依次设置有软木、加热片、第一导热铝块，所述内框处设置有第二导热铝块，所述第一导热铝块的内部和所述第二导热铝块的内部均设置有温度传感器，所述上盒子的开口和所述下盒子的开口进行紧贴时，所述第一导热铝块与所述第二导热铝块夹持的空间与产品夹具相适配。本发明应用于热阻测量的技术领域。

The present invention aims to provide a thermal insulation box temperature control conduction detection device that conducts heat along a single direction, monitors the product's upper and lower temperatures and heat conduction speed in real time, and can accurately measure the product's thermal resistance. The present invention comprises an upper box and a lower box located directly below the upper box, the opposite ends of the upper box and the lower box are provided with openings, the upper box is provided with an inner box, and the bottom of the inner box An opening is provided, the inner frame is arranged in the lower box, cork, a heating sheet, and a first heat-conducting aluminum block are arranged in the inner box from top to bottom, and a second heat-conducting aluminum block is arranged in the inner frame. Aluminum block, the inside of the first heat-conducting aluminum block and the inside of the second heat-conducting aluminum block are provided with temperature sensors, when the opening of the upper box and the opening of the lower box are in close contact, the first The space clamped by the heat-conducting aluminum block and the second heat-conducting aluminum block is adapted to the product fixture. The invention is applied to the technical field of thermal resistance measurement.

Description

Translated fromChinese

一种保温盒子温度控制传导检测装置A thermal insulation box temperature control conduction detection device

技术领域technical field

本发明应用于热阻测量的技术领域,特别涉及一种保温盒子温度控制传导检测装置。The invention is applied to the technical field of thermal resistance measurement, and in particular relates to a temperature control conduction detection device for a thermal insulation box.

背景技术Background technique

热阻是指当有热量在物体上传输时，在物体两端温度差与热源的功率之间的比值，单位为开尔文每瓦特，K/W，或摄氏度每瓦特，℃/W；接触热阻是指当热量流过两个相接触的固体的交界面时，界面本身对热流呈现出明显的热阻；导热系数是指在稳定传热条件下，1m厚的材料，两侧表面的温差为1度，K，℃，在一定时间内，通过1平方米面积传递的热量，单位为瓦/米·度 ，W/m·K；虽然任何外表上看来接触良好的两个物体，直接接触的实际面积只是交界面的一部分，其余部分都是缝隙。热量依靠缝隙内气体的热传导和热辐射进行传递，而它们的传热能力远不及一般的固体材料，接触热阻使热流流过交界面时，沿热流方向温度 T发生突然下降，同时反映材料的导热性能，热阻越大，其导热性越差，反之，热阻越小，其导热性越优良。无论是热阻还是导热系数，都可以反映出材料的导热性能。产品的导热性能越好，则产品产生的工作热就越易散发出去。Thermal resistance refers to the ratio between the temperature difference at both ends of the object and the power of the heat source when heat is transmitted on the object, the unit is Kelvin per watt, K/W, or Celsius per watt, °C/W; contact thermal resistance It means that when heat flows through the interface of two contacting solids, the interface itself presents obvious thermal resistance to heat flow; thermal conductivity refers to the temperature difference between the two sides of a material with a thickness of 1m under stable heat transfer conditions. 1 degree, K, ℃, the heat transferred through an area of 1 square meter within a certain period of time, the unit is W/m·degree, W/m·K; although any two objects that appear to be in good contact on the outside, are in direct contact The actual area of is only a part of the interface, and the rest are gaps. The heat is transmitted by the heat conduction and heat radiation of the gas in the gap, and their heat transfer ability is far less than that of ordinary solid materials. When the heat flow flows through the interface due to the contact thermal resistance, the temperature T suddenly drops along the heat flow direction, and at the same time reflects the temperature of the material. Thermal conductivity, the greater the thermal resistance, the poorer the thermal conductivity, on the contrary, the smaller the thermal resistance, the better the thermal conductivity. Both thermal resistance and thermal conductivity can reflect the thermal conductivity of materials. The better the thermal conductivity of the product, the easier it is for the working heat generated by the product to dissipate.

在产品结构成型后，需要对产品进行环境测试，由于产品使用环境一般是在一定温度下进行存储运行或者工作，又或者产品不断进出高温区低温区，这就需要模拟环境来进行高低温存储以及高低温运行的测试，因此有必要了解产品在自然环境中的可靠性，用来确定元件、设备或其他产品在高温环境下使用、运输或贮存能力。现有技术的测试产品热阻的装置大多是在液体里进行测试，中国专利CN202126420U公开了一种PCB基板热阻检测组件，其简单使用发热件和恒温水浴箱通过发热源对PCB基板进行发热并通过两温度传感器测试PCB基板两面的温度，然后根据相应公式算出PCB基板的热阻，然而其发热源传导热量的方向不固定，发热源传导的热量不能完全传输给PCB基板，导致测量的热阻不够准确。After the product structure is formed, it is necessary to conduct environmental tests on the product. Since the product use environment is generally stored and operated at a certain temperature, or the product is constantly entering and leaving the high temperature area and low temperature area, this requires a simulated environment for high and low temperature storage and High and low temperature operation tests, so it is necessary to understand the reliability of the product in the natural environment to determine the ability of components, equipment or other products to be used, transported or stored in high temperature environments. Most of the devices for testing the thermal resistance of products in the prior art are tested in liquid. Chinese patent CN202126420U discloses a PCB substrate thermal resistance detection component, which simply uses a heating element and a constant temperature water bath to heat the PCB substrate through a heat source and The temperature on both sides of the PCB substrate is tested by two temperature sensors, and then the thermal resistance of the PCB substrate is calculated according to the corresponding formula. However, the direction of heat conduction by the heat source is not fixed, and the heat conducted by the heat source cannot be completely transmitted to the PCB substrate, resulting in the measured thermal resistance. Not accurate enough.

发明内容Contents of the invention

本发明所要解决的技术问题是克服现有技术的不足，提供了一种热量沿着单一方向的传导、实时监测产品上下温度及导热速度且能够精准测出产品热阻的保温盒子温度控制传导检测装置。The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a thermal insulation box temperature control conduction detection that conducts heat along a single direction, monitors the product's upper and lower temperatures and heat conduction speed in real time, and can accurately measure the product's thermal resistance device.

本发明所采用的技术方案是：本发明包括上盒子和位于所述上盒子正下方的下盒子，所述上盒子与所述下盒子的对立端均开设有开口，所述上盒子内设置有内盒子，所述内盒子的底部设有开口，所述下盒子内设置有所述内框，所述内盒子的内部从上至下依次设置有软木、加热片、第一导热铝块，所述内框处设置有第二导热铝块，所述第一导热铝块的内部和所述第二导热铝块的内部均设置有温度传感器，所述上盒子的开口和所述下盒子的开口进行紧贴时，所述第一导热铝块与所述第二导热铝块夹持的空间与产品夹具相适配。The technical solution adopted in the present invention is: the present invention includes an upper box and a lower box located directly below the upper box, the opposite ends of the upper box and the lower box are provided with openings, and the upper box is provided with An inner box, the bottom of the inner box is provided with an opening, the lower box is provided with the inner frame, and the interior of the inner box is provided with cork, a heating sheet, and a first heat-conducting aluminum block in sequence from top to bottom, so that The inner frame is provided with a second heat-conducting aluminum block, the inside of the first heat-conducting aluminum block and the inside of the second heat-conducting aluminum block are both provided with temperature sensors, the opening of the upper box and the opening of the lower box When performing close contact, the space clamped by the first heat-conducting aluminum block and the second heat-conducting aluminum block is adapted to the product fixture.

由上述方案可见，将安装有产品的产品夹具放置在所述第二导热铝块上，当所述上盒子压合在所述下盒子时，所述第一导热铝块的上下端分别紧贴于所述第一导热铝块、所述第二导热铝块，外部电源对所述加热片进行加热，产生的热量经过所述第一导热铝块内的温度传感器，然后穿透产品夹具，其次所述第二导热铝块内的温度传感器检测实时温度，最后经过公式计算产品的热阻。所述保温盒子温度控制传导检测装置能够了解产品在自然环境中的可靠性，用来确定元件、设备或其他产品在高温环境下使用、运输或贮存能力。由于所述内盒子仅在底部设有开口，同时所述加热片的背面使用所述软木进行隔开，保证热量从上往下传导，沿着单一方向进行传导，所述保温盒子温度控制传导检测装置能够实时监测到产品上下面实时的温度及导热速度。It can be seen from the above scheme that the product fixture installed with the product is placed on the second heat-conducting aluminum block, and when the upper box is pressed on the lower box, the upper and lower ends of the first heat-conducting aluminum block are in close contact with each other. Based on the first heat-conducting aluminum block and the second heat-conducting aluminum block, the external power supply heats the heating sheet, and the heat generated passes through the temperature sensor in the first heat-conducting aluminum block, and then penetrates the product fixture, followed by The temperature sensor in the second heat-conducting aluminum block detects the real-time temperature, and finally calculates the thermal resistance of the product through a formula. The thermal insulation box temperature control conduction detection device can know the reliability of the product in the natural environment, and is used to determine the use, transportation or storage capabilities of components, equipment or other products in high temperature environments. Since the inner box is only provided with an opening at the bottom, and the back of the heating sheet is separated by the cork to ensure heat conduction from top to bottom and conduction along a single direction, the temperature control conduction detection of the heat preservation box The device can monitor the real-time temperature and heat conduction speed of the product above and below in real time.

一个优选方案是，所述内盒子的顶部和所述内框的底部分别设置有上水冷板和下水冷板，所述上水冷板和所述下水冷板均与外部的恒温水箱导通连接。A preferred solution is that the top of the inner box and the bottom of the inner frame are respectively provided with an upper water cooling plate and a lower water cooling plate, and both the upper water cooling plate and the lower water cooling plate are conductively connected to an external constant temperature water tank.

一个优选方案是，所述上盒子的内部、所述下盒子的内部以及所述内盒子的内部均包裹有气凝胶。A preferred solution is that the inside of the upper box, the inside of the lower box and the inside of the inner box are all wrapped with aerogel.

一个优选方案是，所述第一导热铝块的底端和所述第二导热铝块的顶端均设置有导热片。A preferred solution is that both the bottom end of the first heat-conducting aluminum block and the top end of the second heat-conducting aluminum block are provided with heat-conducting sheets.

一个优选方案是，所述内盒子的顶端通过导热膏与所述上水冷板连接。A preferred solution is that the top of the inner box is connected to the upper water cooling plate through thermal paste.

一个优选方案是，所述上盒子的底端设置有密封圈，所述密封圈位于所述内盒子的外圈，所述上盒子通过所述密封圈与所述下盒子密封配合。A preferred solution is that a sealing ring is provided at the bottom of the upper box, and the sealing ring is located on the outer ring of the inner box, and the upper box is sealingly engaged with the lower box through the sealing ring.

一个优选方案是，所述上盒子与所述下盒子均为隔热玻璃纤维材料一体成型。A preferred solution is that both the upper box and the lower box are integrally formed of heat-insulating glass fiber material.

一个优选方案是，所述上盒子的底端设置有销钉，所述下盒子开设有与所述销钉相适配的销钉孔。A preferred solution is that a pin is provided at the bottom of the upper box, and a pin hole matching the pin is opened in the lower box.

附图说明Description of drawings

图1是本发明的立体结构示意图；Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

图2是所述上盒子的立体结构示意图；Fig. 2 is a schematic diagram of the three-dimensional structure of the upper box;

图3是所述下盒子的立体结构示意图；Fig. 3 is a schematic diagram of the three-dimensional structure of the lower box;

图4是所述上盒子的立体结构分解示意图；Fig. 4 is an exploded schematic view of the three-dimensional structure of the upper box;

图5是所述下盒子的立体结构分解示意图；Fig. 5 is an exploded schematic diagram of the three-dimensional structure of the lower box;

图6是本发明的截面图。Fig. 6 is a cross-sectional view of the present invention.

具体实施方式Detailed ways

如图1至图6所示，在本实施例中，本发明包括上盒子1和位于所述上盒子1正下方的下盒子2，所述上盒子1与所述下盒子2的对立端均开设有开口，所述上盒子1内设置有内盒子3，所述内盒子3的底部设有开口，所述下盒子2内设置有所述内框4，所述内盒子3的内部从上至下依次设置有软木5、加热片6、第一导热铝块7，所述内框4处设置有第二导热铝块8，所述第一导热铝块7的内部和所述第二导热铝块8的内部均设置有温度传感器9，所述上盒子1的开口和所述下盒子2的开口进行紧贴时，所述第一导热铝块7与所述第二导热铝块8夹持的空间与产品夹具相适配。As shown in Figures 1 to 6, in this embodiment, the present invention includes an upper box 1 and a lower box 2 positioned directly below the upper box 1, the opposite ends of the upper box 1 and the lower box 2 are both There is an opening, the upper box 1 is provided with aninner box 3, the bottom of theinner box 3 is provided with an opening, the lower box 2 is provided with the inner frame 4, and the inside of theinner box 3 is from the upper Cork 5, heating sheet 6, and first heat-conductingaluminum block 7 are provided in sequence from bottom to bottom. A second heat-conductingaluminum block 8 is provided at the inner frame 4. The inside of the first heat-conductingaluminum block 7 and the second heat-conducting aluminum block The inside of thealuminum block 8 is provided with atemperature sensor 9, when the opening of the upper box 1 and the opening of the lower box 2 are in close contact, the first heat-conductingaluminum block 7 and the second heat-conductingaluminum block 8 are clamped The holding space is suitable for the product fixture.

在本实施例中，所述内盒子3的顶部和所述内框4的底部分别设置有上水冷板10和下水冷板16，所述上水冷板10和所述下水冷板16均与外部的恒温水箱导通连接。所述上水冷板10内部水温控制传导到所述内盒子3里面，提供测试环境，所述内盒子3通过外部恒温水箱设置温度，保证所述内盒子3的环境温度，通过所述加热片6加热提供热源，实现热传递的单向性，所述下水冷板16设置一个低温，为了更有效地把产品的热量带走，外部恒温水箱输出温度一定的水流，水流经所述上水冷板10，热传导到所述内盒子3，保证所述内盒子3内部环境温度稳定。In this embodiment, the top of theinner box 3 and the bottom of the inner frame 4 are respectively provided with an upper water-cooledplate 10 and a lower water-cooledplate 16, and the upper water-cooledplate 10 and the lower water-cooledplate 16 are connected with the outer The constant temperature water tank conduction connection. The internal water temperature control of the upperwater cooling plate 10 is conducted to the inside of theinner box 3 to provide a test environment. The temperature of theinner box 3 is set by an external constant temperature water tank to ensure the ambient temperature of theinner box 3. Through the heating sheet 6 Heating provides a heat source to achieve unidirectional heat transfer. The lowerwater cooling plate 16 is set at a low temperature. In order to take away the heat of the product more effectively, the external constant temperature water tank outputs water with a certain temperature, and the water flows through the upperwater cooling plate 10 , the heat is conducted to theinner box 3 to ensure that the internal environment temperature of theinner box 3 is stable.

在本实施例中，所述上盒子1的内部、所述下盒子2的内部以及所述内盒子3的内部均包裹有气凝胶11。所述气凝胶用于保证外部环境不影响内部的热量传递，起到隔绝热量的作用。In this embodiment, the inside of the upper box 1 , the inside of the lower box 2 and the inside of theinner box 3 are all wrapped withairgel 11 . The airgel is used to ensure that the external environment does not affect the internal heat transfer, and plays the role of heat insulation.

在本实施例中，所述第一导热铝块7的底端和所述第二导热铝块8的顶端均设置有导热片12。所述导热片12能够实现软接触以及更好的热传导，降低接触热阻。In this embodiment, the bottom end of the first heat-conductingaluminum block 7 and the top end of the second heat-conductingaluminum block 8 are both provided with heat-conductingfins 12 . Theheat conducting sheet 12 can realize soft contact and better heat conduction, and reduce contact thermal resistance.

在本实施例中，所述内盒子3的顶端通过导热膏与所述上水冷板10连接。所述上水冷板与所述内盒子3顶部的接触点使用导热膏，增加两者之间的热传导，使导热效果更快。In this embodiment, the top of theinner box 3 is connected to the upperwater cooling plate 10 through thermal paste. The contact point between the upper water-cooled plate and the top of theinner box 3 uses thermal paste to increase the heat conduction between the two and make the heat conduction effect faster.

在本实施例中，所述上盒子1的底端设置有密封圈13，所述密封圈13位于所述内盒子3的外圈，所述上盒子1通过所述密封圈13与所述下盒子2密封配合。当外部驱动机构驱动所述上盒子1下压所述下盒子2时，所述密封圈13隔绝了内部与外部的气体交换，避免影响测试的准确度。In this embodiment, the bottom of the upper box 1 is provided with asealing ring 13, and thesealing ring 13 is located on the outer ring of theinner box 3, and the upper box 1 is connected to the lower box 1 through thesealing ring 13. Box 2 seal fit. When the external drive mechanism drives the upper box 1 to press down the lower box 2, thesealing ring 13 isolates the gas exchange between the inside and the outside, so as to avoid affecting the accuracy of the test.

在本实施例中，所述上盒子1与所述下盒子2均为隔热玻璃纤维材料一体成型。In this embodiment, the upper box 1 and the lower box 2 are integrally formed of heat-insulating glass fiber material.

在本实施例中，所述上盒子1的底端设置有销钉14，所述下盒子2开设有与所述销钉14相适配的销钉孔15。In this embodiment, the bottom of the upper box 1 is provided with apin 14 , and the lower box 2 is provided with apin hole 15 matching with thepin 14 .

本发明的工作原理：将安装有产品的产品夹具放置在所述第二导热铝块上，外部驱动机构驱动所述上盒子下压所述下盒子，所述上盒子通过所述密封圈与所述下盒子密封配合，外部恒温水箱输出温度一定的水流，水流经所述上水冷板和所述下水冷板，热传导到所述内盒子，外部电源对所述加热片进行加热，产生的热量经过所述第一导热铝块内的温度传感器，然后穿透产品夹具，其次所述第二导热铝块内的温度传感器检测实时温度，最后经过公式计算产品的热阻。The working principle of the present invention: place the product fixture with the product on the second heat-conducting aluminum block, the external drive mechanism drives the upper box to press down the lower box, and the upper box passes through the sealing ring and the The lower box is sealed and matched, and the external constant temperature water tank outputs a water flow with a certain temperature. The water flows through the upper water cooling plate and the lower water cooling plate, and the heat is conducted to the inner box. The external power supply heats the heating sheet, and the heat generated passes through the The temperature sensor in the first heat-conducting aluminum block then penetrates the product fixture, and then the temperature sensor in the second heat-conducting aluminum block detects the real-time temperature, and finally calculates the thermal resistance of the product through a formula.

Claims (8)

1. The utility model provides a heat preservation box temperature control conduction detection device, includes box (1) and is located box (2) under going up box (1), go up box (1) with the opening has all been seted up to the opposite end of box (2) down, be provided with interior box (3) in last box (1), the bottom of interior box (3) is equipped with the opening, be provided with inside casing (4) in box (2) down, its characterized in that: inside from last cork (5), heating plate (6), first heat conduction aluminium piece (7) have set gradually down of interior box (3), inside casing (4) department is provided with second heat conduction aluminium piece (8), the inside of first heat conduction aluminium piece (7) with the inside of second heat conduction aluminium piece (8) all is provided with temperature sensor (9), go up the opening of box (1) with when the opening of box (2) down hugs closely, first heat conduction aluminium piece (7) with the space and the product anchor clamps looks adaptation of second heat conduction aluminium piece (8) centre gripping.

2. The thermal box temperature control conduction detection apparatus as recited in claim 1, wherein: the top of the inner box (3) and the bottom of the inner frame (4) are respectively provided with an upper water cooling plate (10) and a lower water cooling plate (16), and the upper water cooling plate (10) and the lower water cooling plate (16) are connected with an external constant-temperature water tank in a conducting mode.

3. The thermal box temperature control conduction detection apparatus as recited in claim 1, wherein: aerogel (11) is wrapped in the upper box (1), the lower box (2) and the inner box (3).

4. The thermal box temperature control conduction detection apparatus as recited in claim 1, wherein: the bottom end of the first heat conduction aluminum block (7) and the top end of the second heat conduction aluminum block (8) are both provided with heat conduction sheets (12).

5. A thermal cassette temperature controlled conductance detector as defined in claim 2, wherein: the top end of the inner box (3) is connected with the upper water cooling plate (10) through heat conduction paste.

6. The thermal box temperature control conduction detection apparatus as recited in claim 1, wherein: the bottom of the upper box (1) is provided with a sealing ring (13), the sealing ring (13) is positioned on the outer ring of the inner box (3), and the upper box (1) is in sealing fit with the lower box (2) through the sealing ring (13).

7. The thermal box temperature control conduction detection apparatus as recited in claim 1, wherein: the upper box (1) and the lower box (2) are made of heat-insulating glass fiber materials in an integrated mode.

8. The thermal box temperature control conduction detection apparatus as recited in claim 1, wherein: the bottom of the upper box (1) is provided with a pin (14), and the lower box (2) is provided with a pin hole (15) matched with the pin (14).

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