WO2023082455A1 - 逆流式节能热交换器芯体 - Google Patents

逆流式节能热交换器芯体 Download PDF

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Publication number
WO2023082455A1
WO2023082455A1 PCT/CN2022/000146 CN2022000146W WO2023082455A1 WO 2023082455 A1 WO2023082455 A1 WO 2023082455A1 CN 2022000146 W CN2022000146 W CN 2022000146W WO 2023082455 A1 WO2023082455 A1 WO 2023082455A1
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heat
heat conduction
core
fresh air
indoor exhaust
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PCT/CN2022/000146
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English (en)
French (fr)
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肖正广
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肖正广
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Publication of WO2023082455A1 publication Critical patent/WO2023082455A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units

Definitions

  • the invention belongs to the technical field of heat energy exchange, and in particular relates to a core body of a counterflow energy-saving heat exchanger.
  • air conditioner disease nasal congestion, dizziness, fatigue, and memory loss.
  • air-conditioning disease nasal congestion, dizziness, fatigue, and memory loss.
  • the main reasons for the occurrence of "air-conditioning disease” are: after the air conditioner is turned on, the sealing performance of the indoor space is improved, the indoor air is not circulated, resulting in a decrease in oxygen content, and the human body is not suitable for symptoms caused by various harmful gases volatilized from interior decoration materials.
  • indoor ventilation is a better method: it not only solves the problem of indoor air pollution, but also solves the problem of indoor air staleness, so the fresh air series products gradually enter people's lives.
  • fresh air fans There are two main types of fresh air series products on the market: fresh air fans and fresh air conditioners.
  • the function of the fresh air fan is to ventilate the room when the air conditioner is cooling in summer and heating the room in winter, so that the indoor air can be circulated. After sterilization, filtration and other methods, it is input into the room, so that the room is filled with fresh and clean air all the time.
  • the fresh air conditioner is to add air dust filter, auxiliary sterilization device, small fan and other accessories to the existing indoor unit of the air conditioner in the market, so that the fresh air conditioner has both the function of the air conditioner and the function of the fresh fan.
  • the principle of using fresh air fans or fresh air conditioners to ventilate the room is to ensure that the indoor air quality is improved, but also to minimize the impact on the indoor temperature, so as to save the energy consumption of air conditioning in summer and indoor heating in winter, so as to achieve energy saving. purpose of emission reduction.
  • people have added a heat exchange function in the fresh air series products.
  • the energy-saving method of the fresh air fan products on the market is: the outdoor fresh air and the indoor exhaust air respectively flow from the quadrilateral heat exchange core or the hexagonal heat exchange core in a cross-flow manner.
  • the temperature difference and the humidity difference, the two hot and cold air flows through the heat conduction sheet to conduct temperature and exchange humidity, and complete the temperature and humidity exchange process.
  • Due to the special structure of the quadrangular heat exchange core and the hexagonal heat exchange core they are rarely used in fresh air air conditioners.
  • the fresh air air conditioner has the fresh air function, the energy loss is serious, and the purpose of energy saving and emission reduction has not been achieved.
  • the logarithmic average temperature difference (the average value of the integral temperature difference of the cold and hot fluid in the heat transfer process in the heat exchanger). Because the logarithmic average temperature difference is the largest during countercurrent, the countercurrent method can improve the heat exchange efficiency of outdoor fresh air and indoor exhaust air in the core of the fresh fan heat exchanger.
  • the present invention is an improved counterflow energy-saving heat exchanger core based on the disadvantages of low heat exchange efficiency of the quadrangular heat exchange core and the hexagonal heat exchange core.
  • the flow direction of the outdoor fresh air and indoor exhaust air in the core is the countercurrent direction;
  • the core is equipped with multi-layer heat conduction sheets, and the heat conduction sheets are made of metal materials such as copper foil or aluminum foil ,
  • the heat exchange core is a sensible heat exchange core, and when the heat conduction sheet is made of moisture-conducting paper or moisture-conducting film with heat and moisture conduction functions, the heat exchange core is a total heat exchange core;
  • the core body is formed by alternately stacking a layer of heat conduction sheet support body and a layer of heat conduction sheet;
  • the sensible heat exchange core can use copper foil heat conduction sheet or aluminum foil heat conduction sheet
  • Such metal materials have the characteristics of compression and extension, and are pressed into the shape of the heat conduction sheet support body to directly replace the heat conduction sheet support body;
  • One side of the body is provided with an outdoor fresh
  • the outdoor fresh air and indoor exhaust air flow in the core in a counter-flow direction.
  • the core body is formed by alternately stacking one layer of heat conduction sheet support and one layer of heat conduction sheet.
  • the sensible heat exchange core can be pressed into the shape of the heat conduction plate support by utilizing metal materials such as copper foil heat conduction sheets or aluminum foil heat conduction sheets, which have the characteristics of compression and extension, directly replacing the heat conduction sheet support.
  • the outdoor fresh air and the indoor exhaust air flow in the core body in a manner of alternately interspersed with each other.
  • the two column-shaped tuyeres of the heat-conducting sheet support body are arranged to intersect, and the shape of the tuyere is not limited to the column-shaped tuyere, and can also be designed in other shapes such as circular or triangular.
  • a plurality of air flow deflectors are arranged in the support body of the heat conducting sheet.
  • a plurality of support points of the heat conduction sheet are provided in the support body of the heat conduction sheet, and the support points of the heat conduction sheet can also be designed in other shapes of cuboid, and the position is fixed by the support point positioning belt.
  • the heat conducting sheet adopts a sensible heat exchange core made of metal materials such as copper foil or aluminum foil, which can adjust the temperature of the fresh air leading to the room; the heat conducting sheet adopts moisture conducting paper or moisture conducting The full heat exchange core made of wet film can adjust the temperature and humidity of the fresh air leading to the room.
  • the logarithmic mean temperature difference is increased through the countercurrent flow direction of outdoor fresh air and indoor exhaust air in the heat exchanger core.
  • the outdoor fresh air and the indoor exhaust air flow in alternate layers in the heat exchanger core. There is a temperature and humidity difference between the outdoor fresh air and the indoor exhaust air, and the temperature and humidity are conducted on both sides of the heat conduction sheet to complete the display. Thermal or total heat exchange process.
  • a sensible heat exchange core or a total heat exchange core can be assembled, and the method of parallel or series connection can be selected according to the indoor temperature and humidity requirements to adjust the temperature and temperature of the fresh air in the room. humidity.
  • Metal materials such as copper foil heat conduction sheets or aluminum foil heat conduction sheets have the characteristics of compression and extension, and can be pressed into the shape of the heat conduction sheet support to directly replace the heat conduction sheet support.
  • the heat exchange efficiency of the sensible heat exchange core remains unchanged, the simplified the production process.
  • the misalignment of the two column-shaped air outlets of the support body of the heat-conducting sheet prevents the flowing part of the internal outdoor fresh air or the indoor exhaust air from being biased to one side.
  • the multiple air flow deflectors in the core will balance the flow air volume of the outdoor fresh air and indoor exhaust air on the entire heat conduction sheet, preventing the outdoor fresh air and indoor exhaust air from directly Flow from the air inlet to the air outlet.
  • the supporting points of the heat conduction fins support the two adjacent heat conduction fins, so that the outdoor fresh air and indoor exhaust air can flow smoothly in the core, and the internal air can also generate eddy currents to enhance heat transfer.
  • Fig. 1 is a schematic diagram of the principle of the core body of the counterflow energy-saving heat exchanger proposed by the present invention.
  • FIG. 2 is a schematic structural view of a heat conducting sheet support body.
  • Figure 3 is a schematic diagram of the principle of the heat exchange method of the quadrilateral heat exchange core used in the fresh air blower on the market, which is only used as a reference for comparison.
  • Figure 4 is a schematic diagram of the principle of the heat exchange method of the hexagonal heat exchange core used in fresh air blowers on the market, which is only used as a reference for comparison.
  • the core body of the counterflow energy-saving heat exchanger the flow direction of the outdoor fresh air and the indoor exhaust air in the core body 1 is the countercurrent direction;
  • the core body 1 is provided with multi-layer heat conducting fins 3;
  • the heat conducting fins 3 are made of copper
  • the heat exchange core is a sensible heat exchange core;
  • the heat conduction sheet 3 is made of moisture conducting paper or film with heat conduction and moisture conduction functions, the heat exchange core is a total heat exchange Core body;
  • the core body 1 is provided with a multi-layer heat conduction sheet support body 2;
  • the core body 1 is formed by alternately stacking one layer of heat conduction sheet support body 2 and one layer of heat conduction sheet 3;
  • the indoor exhaust air flows in the core body 1 by means of alternating interlayers;
  • the outdoor fresh air inlet 4 and the indoor exhaust air outlet 7 are arranged on one side of the core body 1;
  • An indoor exhaust air inlet 6 and an outdoor fresh air outlet 5 are provided.
  • the two column-shaped tuyere 8 of the heat conduction sheet support body 2 are arranged crosswise; the heat conduction sheet support body 2 is provided with a plurality of air flow guide plates 9; the heat conduction sheet support body 2 is provided with There are a plurality of support points 10 of the heat conduction sheet; each support point 10 of the heat conduction sheet is fixed in position by a support positioning belt 11 .
  • the flow direction of the outdoor fresh air and the indoor exhaust air in the core body 1 is the counter-flow direction; the outdoor fresh air enters the core body 1 alternately from the outdoor fresh air inlet 4 and flows through the heat conducting sheet 3 , flows out from the outdoor fresh air outlet 5 on the other side of the core body 1, and enters the room; the indoor exhaust air enters the core body 1 alternately from the indoor exhaust air inlet 6, flows through the heat conducting sheet 3, and flows from the core body 1
  • the indoor exhaust air outlet 7 on the other side is exhausted to the outside; the outdoor fresh air and indoor exhaust air conduct temperature and exchange humidity through both sides of the heat conducting sheet 3 to complete the process of sensible heat or total heat exchange.
  • the counter-flow energy-saving heat exchanger core of the present invention can replace the quadrilateral heat exchange core and the hexagonal heat exchange core currently used in fresh air fans on the market, and also solve the problem of quadrilateral heat exchange core and hexagonal heat exchange core.
  • Shaped heat exchange core body is difficult to be used as the heat exchange function of fresh air conditioner.
  • Fresh air-conditioning products and fresh air-conditioning products can keep the original temperature and humidity in the room without much change when ventilating the room during the summer air-conditioning cooling and winter indoor heating seasons, making fresh air-conditioning products and fresh air-conditioning products more energy-saving and environmentally friendly .

Abstract

本发明公开了一种逆流式节能热交换器芯体，属于热能交换技术领域。通过逆流方式对室内外冷热空气进行通风换热，芯体内的室外新风和室内排风的流动方向是逆流方向，芯体内设有多层导热片，芯体是由一层导热片支撑体和一层导热片相互交替堆叠而成的，室外新风和室内排风在芯体内是相互交替隔层的方法进行流动，本发明的主要用途是新风机和新风空调在进行室内通风换气时，能够起到冷热能量回收的作用。

Description

逆流式节能热交换器芯体 技术领域
本发明属于热能交换技术领域，具体而言，涉及一种逆流式节能热交换器芯体。
背景技术
随着科学技术的不断发展，室内装饰材料品种日新月异，各种装饰风格效果不断更新，人们在欣赏舒适家居的同时，也关注到室内空气污染日趋严重问题。
现实生活中空调产品的普及，人们在适宜的温度下工作和生活，提高了工作效率，增加了人们舒适生活的指数。但是人们对空调长期的依赖性，容易发生“空调病”这些症状：鼻塞、头晕、乏力、记忆力减退等现象。发生“空调病”的主要原因是：空调开启后室内空间密封性能提高，室内空气不流通造成氧气含量下降，再加上室内装饰材料挥发出来的各种有害气体等原因引起的人体不适应症状。
人们在享受室内舒适生活的同时，室内空气不清新问题也被提上议事日程，人们迫切需要解决室内空气污染和室内空气不新鲜问题。在众多方法中，对室内进行通风换气是一种较佳的方法：既解决了室内空气污染难题，又解决了室内空气不新鲜的问题，因此新风系列产品逐渐走进人们的生活。
市场上的新风系列产品主要有两类：新风机产品和新风空调器产品。
新风机的功能是在夏季空调制冷和冬季室内供暖的时候，对室内进行通风换气，能够使室内空气产生循环，一方面把室内污浊的空气排到室外，另一方面把室外新鲜的空气经过杀菌、过滤等方法处理后，再输入到室内，让房间里每时每刻都是新鲜干净的空气。
新风空调就是在市场上现有的空调器室内机中增加了空气灰尘过滤网、辅助杀菌装置、小型风机等配件产品，使新风空调既有空调器的功能，又有新风机的功能。
采用新风机或者是新风空调对室内进行通风换气的原则是：既要保证提高室内空气品质，又要尽量减少对室内温度的影响，节省夏季空调制冷和冬季室内供暖时的能源消耗，达到节能减排的目的。为了解决这个问题，人们在新风系列产品内增加了热交换功能。
目前市场上的新风机产品节能的方式是：室外新风和室内排风分别从四边形热交换芯体或者是六边形热交换芯体内呈交叉流的方式流动，，由于导热片两侧气流存在温度差和湿度差，两股冷热气流通过导热片发生传导温度和交换湿度现象，完成温度和湿度交换过程。由于四边形热交换芯体和六边形热交换芯体的特殊结构，很少用在新风空调中，新风空调虽然有新风功能，但是能量损失严重，没有达到节能减排的目的。
由于市场上现有的新风机，室外新风和室内排风在新风机热交换器芯体内的流动方式是交叉流，而不是采用逆流方式，因此新风机热交换器芯体热交换效率低。
为了提高新风机热交换器芯体的热交换效率，就要提高对数平均温差(冷热流体在热交换器中传热过程温差的积分的平均值)。因为逆流时对数平均温差最大，所以采用逆流的方式，才能提高室外新风和室内排风在新风机热交换器芯体内的热交换效率。
发明内容
本发明是根据上述四边形热交换芯体和六边形热交换芯体热交换效率低的不足之处，而改进的一种逆流式节能热交换器芯体。
为了实现上述目的，本发明采用了如下技术方案：
逆流式节能热交换器芯体，所述芯体内的室外新风和室内排风的流动方向是逆流方向；所述芯体内设有多层导热片，所述导热片选用铜箔或铝箔等金属材料时，则热交换芯体为显热交换芯体，所述导热片选用具有导热导湿功能的导湿纸或导湿膜时，则热交换芯体为全热交换芯体；所述芯体内设有多层导热片支撑体；所述芯体是由一层导热片支撑体和一层导热片相互交替堆叠而成的；所述显热交换芯体可以利用铜箔导热片或铝箔导热片等金属材料具有压延伸展的特性，压制成导热片支撑体的形状，直接替代导热片支撑体；所述室外新风和室内排风在芯体内是相互交替隔层的方法进行流动；所述在芯体的一侧设有室外新风进口和室内排风出口；所述在芯体的另一侧设有室内排风进口和室外新风出口；所述导热片支撑体的两个立柱形风口都是交叉设置，风口形状不限定为立柱形风口，还可以设计成圆形或三角形等其它形状；所述导热片支撑体内设有多个风量导流板；所述导热片支撑体内设有多个导热片支撑点， 所述导热片支撑点还可以设计成长方体其它形状；所述每个导热片支撑点都由支撑点定位带进行位置固定。
优选地，所述室外新风和室内排风在芯体内流动的方向是逆流方向。
优选地，所述芯体是由一层导热片支撑体和一层导热片相互交替堆叠而成的。
优选地，所述显热交换芯体可以利用铜箔导热片或铝箔导热片等金属材料具有压延伸展的特性，压制成导热片支撑体的形状，直接替代导热片支撑体。
优选地，所述室外新风和室内排风在芯体内是相互交替隔层的方法进行流动。
优选地，所述导热片支撑体的两个立柱形风口都是交叉设置，风口形状不限定为立柱形风口，还可以设计成圆形或三角形等其它形状。
优选地，所述导热片支撑体内设有多个风量导流板。
优选地，所述导热片支撑体内设有多个导热片支撑点，导热片支撑点还可以设计成长方体其它形状，并由支撑点定位带进行位置固定。
优选地，所述导热片采用铜箔或铝箔等金属材料制成的显热交换芯体，可以调节通向室内新风的温度；所述导热片采用具有导热和导湿功能的导湿纸或导湿膜制成的全热交换芯体，可以调节通向室内新风的温度和湿度。
本发明具有以下有益效果：
通过室外新风和室内排风在热交换器芯体内逆流流动的方向，提高了对数平均温差。
通过室外新风和室内排风在热交换器芯体内相互交替隔层的方法进行流动，室外新风和室内排风之间存在温度和湿度差，在导热片两侧进行传导温度和交换湿度，完成显热或全热交换过程。
通过选用金属箔或导湿膜不同的导热材料，就可以组装出显热交换芯体或全热交换芯体，并可以根据室内温度和湿度要求选择并联或串联的方法来调节室内新风的温度和湿度。
通过铜箔导热片或铝箔导热片等金属材料具有压延伸展的特性，压制成导热片支撑体的形状，直接替代导热片支撑体，在显热交换芯体热交换效率不变的情况下，简化了生产工序。
通过室外新风和室内排风从立柱形风口进入芯体内时，内部空间增大，导热面积增加；同理，内部空间增大，风速就会降低，延长了温度和湿度的交换时间。
通过导热片支撑体的两个立柱形风口错位设置，防止内部室外新风或者是室内排风流动部位偏向一侧。
通过室外新风和室内排风从立柱形风口进入芯体时，芯体内的多个风量导流板会均衡室外新风和室内排风在整张导热片的流动风量，防止室外新风和室内排风直接从进风口流向排风口。
通过导热片支撑点支撑相邻的两张导热片，使室外新风和室内排风在芯体内的流动畅通，还能让内部空气产生涡流现象，强化热能换热。
附图说明
图1是本发明提出的逆流式节能热交换器芯体的原理示意图。
图2是导热片支撑体的结构示意图。
图3是市场上新风机使用的四边形热交换芯体的热交换方法原理示意图，仅作为参考对比。
图4是市场上新风机使用的六边形热交换芯体的热交换方法原理示意图，仅作为参考对比。
在图中：1、芯体；2、导热片支撑体；3、导热片；4、室外新风进口；5、室外新风出口；6、室内排风进口；7、室内排风出口；8、立柱形风口；9、风量导流板；10、导热片支撑点；11、支撑点定位带；12、四边形热交换芯体的室外新风流动方向；13、四边形热交换芯体的室内排风流动方向；14、六边形热交换芯体的室外新风流动方向；15、六边形热交换芯体的室内排风流动方向。
最佳实施方式
以下对在附图中提供的本发明实施方式的详细描述，并非是在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施方式。基于本发明中的实施方式，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施方式，都属于本发明的保护范围。
参照图1，逆流式节能热交换器芯体，芯体1内的室外新风和室内排风的流动方向是逆流方向；芯体1内设有多层导热片3；所述导热片3选用铜箔或铝箔等金属材料时，则热交换芯体为显热交换芯体；所述导热片3选用具有 导热导湿功能的导湿纸或导湿膜时，则热交换芯体为全热交换芯体；所述芯体1内设有多层导热片支撑体2；所述芯体1是由一层导热片支撑体2和一层导热片3相互交替堆叠而成；所述室外新风和室内排风在芯体1内是相互交替隔层的方法进行流动；所述在芯体1的一侧设有室外新风进口4和室内排风出口7；所述在芯体1的另一侧设有室内排风进口6和室外新风出口5。
参照图2，所述导热片支撑体2的两个立柱形风口8都是交叉设置；所述导热片支撑体2内设有多个风量导流板9；所述导热片支撑体2内设有多个导热片支撑点10；所述每个导热片支撑点10都是由支撑定位带11进行位置固定。
在本发明实施例中，室外新风和室内排风在芯体1内的流动方向是逆流方向；室外新风从室外新风进口4依次相互交替隔层地进入芯体1内，流经导热片3后，从芯体1另一侧的室外新风出口5流出，进入室内；室内排风从室内排风进口6依次相互交替隔层地进入芯体1内，流经导热片3后，从芯体1另外一侧的室内排风出口7排出，排到室外；室外新风和室内排风通过导热片3的两侧进行相互传导温度和交换湿度，完成显热或全热交换过程。
工业实用性
本发明所述的逆流式节能热交换器芯体，可以替代市场上的新风机现在所采用的四边形热交换芯体和六边形热交换芯体，也解决了四边形热交换芯体和六边形热交换芯体难以用作新风空调的热交换功能。新风机产品和新风空调产品在夏季空调制冷和冬季室内供暖季节，对室内进行通风换气的时候， 可以保持室内原有的温度和湿度变化不大，使新风机产品和新风空调产品更加节能环保。
以上仅为本发明的优选实施方式而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围内。

Claims (1)

  1. 逆流式节能热交换器芯体，包括芯体(1)；导热片支撑体(2)；导热片(3)；室外新风进口(4)；室外新风出口((5)；室内排风进口(6)；室内排风出口(7)；立柱形风口(8)；风量导流板(9)；导热片支撑点(10))；支撑点定位带(11)组成；其特征在于：所述芯体(1)内的室外新风和室内排风的流动方向是逆流方向；所述芯体(1)内设有多层导热片(3)；所述导热片(3)选用铜箔或铝箔等金属材料时，则热交换芯体为显热交换芯体；所述导热片(3)选用具有导热导湿功能的导湿纸或导湿膜时，则热交换芯体为全热交换芯体；所述芯体(1)内设有多层导热片支撑体(2)；所述芯体(1)是由一层导热片支撑体(2)和一层导热片(3)相互交替堆叠而成的；所述显热交换芯体可以利用铜箔导热片或铝箔导热片等金属材料具有压延伸展的特性，压制成导热片支撑体(2)的形状，直接替代导热片支撑体(2)；所述室外新风和室内排风在芯体(1)内是相互交替隔层的方法进行流动；所述在芯体(1)的一侧设有室外新风进口(4)和室内排风出口(7)；所述在芯体(1)的另一侧设有室内排风进口(6)和室外新风出口(5)；所述导热片支撑体(2)的两个立柱形风口(8)都是交叉设置，风口形状不限定为立柱形，还可以设计成圆形或三角形等其它形状；所述导热片支撑体(2)内设有多个风量导流板(9)；所述导热片支撑体(2)内设有多个导热片支撑点(10)，所述导热片支撑点(10)还可以设计成长方体其它形状；所述每个导热片支撑点(10)都由支撑点定位带(11)进行位置固定。
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