WO2015067138A1 - Serial water-cooled heat sink based on damping resistor - Google Patents
Serial water-cooled heat sink based on damping resistor Download PDFInfo
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- WO2015067138A1 WO2015067138A1 PCT/CN2014/089786 CN2014089786W WO2015067138A1 WO 2015067138 A1 WO2015067138 A1 WO 2015067138A1 CN 2014089786 W CN2014089786 W CN 2014089786W WO 2015067138 A1 WO2015067138 A1 WO 2015067138A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
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- H01C1/08—Cooling, heating or ventilating arrangements
- H01C1/082—Cooling, heating or ventilating arrangements using forced fluid flow
Definitions
- the invention relates to a heat sink, in particular to a series water-cooled heat sink based on a damping resistor.
- the UHV DC converter valve uses multiple thyristors in series to commutate, and the damping circuit is connected in parallel with the thyristors.
- the problem of its pressure equalization After accumulating energy, the snubber capacitor is released as a pulse and is consumed in the damping resistor connected in series with it. Therefore, the damping resistor needs to have good pulse power withstand capability and heat dissipation.
- the indirect water cooling method uses a damping resistor rod to be inserted into the heat sink, and the heat is dissipated indirectly by the cooling water in the radiator.
- the disadvantages of this method are: first, the heat dissipation capability is weak; second, the heat sink volume comparison Big; third, the radiator consumes a lot of water.
- the other method uses direct water cooling, and the damping resistor is placed in the water path of the PVDF housing, and the cooling water is directly contacted with the resistor for cooling.
- Direct cooling is more efficient than indirect cooling, but it has its limitations: First, because the metal resistance is directly in contact with water, special anti-corrosion electrodes are required, which increases the complexity of structural design. Second, The water capacity of the waterway is small, the dry burning capacity is poor, and the current interruption time is generally less than 3 seconds. Third, the shell material is PVDF, and its pressure resistance is worse than that of the metal material. Fourth, the design of the thyristor and the damper resistor heat sink are independent, which not only increases the overall size of the structure, but also reduces the reliability of the waterway connection because of the many connection interfaces.
- Thyristors consume a lot of power during operation, resulting in high junction temperatures. To ensure that it works properly, it must be cooled with a water-cooled radiator.
- the thyristor radiator is an indispensable component of the water-cooling system of the converter valve. Its function is to carry the heat generated by the thyristor into the system through the coolant. After the second heat exchange, the absorbed heat is dissipated into the air. Heat exchange device. Therefore, the performance of the thyristor radiator directly affects the performance and reliability of the converter valve.
- thyristors and damping resistors are one of the core cooling targets for water-cooled systems. Therefore, the rationality of the design of the thyristor and the damper resistor heat sink plays a very important role in the good operation of the water cooling system.
- the present invention provides a series water-cooled heat sink based on a damping resistor, which integrates the heat dissipation functions of the thyristor and the damping resistor in series, has a small volume, strong heat dissipation capability, simple structure, and large water capacity. , pressure resistance and other characteristics.
- the invention provides a series-connected water-cooled heat sink based on a damping resistor, the heat sink comprising a heat sink body, a thyristor and a resistor, the heat sink body comprising an aluminum panel, a radiator cavity formed by a water channel and a waterway wall, and a water inlet And a water outlet; the thyristor is attached to a surface of the aluminum panel, and the water inlet and the water outlet are respectively disposed at a top and a bottom of the heat sink body, and the heat sink cavity is provided with two Located inside the aluminum panel; the resistor is disposed within the waterway wall.
- the water channel includes a thyristor heat dissipation channel and a damping resistor cooling water channel connected in series.
- the damping resistor heat dissipating water channel is a spiral structure, and the thyristor heat dissipating water channel is a serpentine structure or a spiral structure.
- the bottom of the damping resistor cooling water channel is made of aluminum material, and the water channel walls on both sides are insulating materials.
- the water channel wall of the thyristor heat dissipating water channel is made of aluminum material and has a thickness of 5 to 10 mm.
- the resistor includes a damping resistor and a power-carrying resistor; the damping resistor is a damping resistor for the high-voltage DC power transmission converter valve, and the energy-receiving resistor is a power-receiving resistor for the high-voltage DC power transmission converter valve.
- the damping resistor and the energizing resistor are connected to the lead through corresponding resistance terminals.
- the heat sink cavity includes a damping resistor heat sink cavity and a thyristor heat sink cavity, both of which are fixed to the aluminum panel by soldering.
- the plating thickness is 0.01 mm.
- the surface of the water channel is plated by a high-temperature electroless nickel plating process in the following order: joint sealing, degreasing, descaling, light extraction, intermediate layer plating, electroless nickel plating, passivation, drying, low temperature annealing;
- the technical parameters of the coating are as follows: thickness: 0.008 mm; surface hardness: R45; nickel content: 93%; gloss: matt; bonding force: sheet bending test qualified.
- the damping resistor is in close contact with the heat-conducting insulating material, and the cooling water directly carries the heat away through the waterway wall. Compared with the method of introducing the indirect cooling damping resistance, the cooling effect is greatly improved;
- FIG. 1 is a front elevational view of a series water-cooled heat sink based on a damping resistor in an embodiment of the present invention
- FIG. 2 is a schematic bottom view of a series water-cooled heat sink based on a damping resistor in an embodiment of the present invention
- FIG. 3 is a schematic cross-sectional view of a series water-cooled heat sink A based on a damping resistor according to an embodiment of the present invention
- FIG. 4 is a cross-sectional view showing a B-direction of a series water-cooled heat sink based on a damping resistor according to an embodiment of the present invention
- 1- radiator main body 2-damper resistance radiator cavity, 3-thyristor radiator cavity, 4-aluminum panel, 5-thyristor fitting surface, 6-inlet, 7-outlet, 8- Damping resistor cooling water channel, 9-damping resistor cooling channel water channel wall, 10-energy resistor, 11-damping resistor, 12-thyristor cooling channel, 13-thyristor cooling channel water channel wall.
- the present invention provides a series-connected water-cooled heat sink based on a damping resistor, the heat sink comprising a heat sink body 1, a thyristor and a resistor, the heat sink body 1 comprising a heat sink cavity formed by an aluminum panel 4, a water channel and a waterway wall
- the water inlet 6 and the water outlet 7; the thyristor is attached to the surface of the aluminum panel 4, and the water inlet 6 and the water outlet 7 are respectively disposed at the top and the bottom of the heat sink body 1, respectively.
- the chamber is provided with two and located inside the aluminum panel 4; the resistor is disposed within the channel wall.
- the water channel includes a thyristor heat dissipating channel 12 and a damping resistor cooling water channel 8 connected in series.
- the damping resistor heat dissipating water channel 8 has a spiral structure
- the thyristor heat dissipating water channel 12 has a serpentine structure or a spiral structure.
- the bottom of the damping resistor cooling water channel 8 is made of aluminum, and the water channel walls 9 on both sides are insulating materials.
- the water channel wall 13 of the thyristor heat dissipating water channel is made of an aluminum material and has a thickness of 5 to 10 mm.
- the resistor includes a damping resistor 11 and a capacitor resistor 10; the damping resistor 11 is a damping resistor for a high-voltage DC transmission converter valve, and the energy-carrying resistor 10 is a resistor for a high-voltage DC transmission converter valve.
- Both the damping resistor 11 and the energizing resistor 10 are connected to the leads through corresponding resistor terminals.
- the heat sink cavity includes a damping resistor heat sink cavity 2 and a thyristor heat sink cavity 3, both of which are fixed to the aluminum panel 4 by soldering.
- the plating thickness is 0.01 mm.
- the surface of the water channel is plated by a high-temperature electroless nickel plating process in the following order: joint sealing, degreasing, descaling, light extraction, intermediate layer plating, electroless nickel plating, passivation, drying, low temperature annealing;
- the technical parameters of the coating are as follows: thickness: 0.008 mm; surface hardness: R45; nickel content: 93%; gloss: matt; bonding force: sheet bending test qualified.
- the water-cooled heat sink structure provided by the invention has stronger water pressure resistance than the PVDF water resistance heat dissipation structure.
- the aluminum panel 4 on the upper and lower surfaces is also the heat-dissipating contact surface of the thyristor, and the thyristor is radiated by forced convection.
- This design integrates the thyristor heat sink and the water-cooled damping resistor in series into one structure, which simplifies the structure of the water-cooled system and reduces the interface of the water-cooled system, thereby improving system reliability.
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Abstract
A serial water-cooled heat sink based on a damping resistor, the heat sink comprising a heat sink body, a thyristor and a resistor. The heat sink body comprises an aluminum panel, a heat sink cavity comprising a water channel and water channel wall, a water inlet and a water outlet; the thyristor conforms to the surface of the aluminum panel; the water inlet and water outlet are respectively disposed on the top and bottom of the heat sink body; two heat sink cavities are disposed inside the aluminum panel; and the resistor is disposed inside the water channel wall.
Description
本发明涉及一种散热器，具体讲涉及一种基于阻尼电阻的串联水冷散热器。The invention relates to a heat sink, in particular to a series water-cooled heat sink based on a damping resistor.
特高压直流技术的快速发展对我国能源的优化配置起到了重要作用，工程中特高压直流换流阀采用多个晶闸管串联的方式进行换流，使用并联于晶闸管两端阻尼回路很好地解决了其均压的问题。阻尼电容在积累能量后，以脉冲形式释放并消耗在与之串联的阻尼电阻上。因此，阻尼电阻需要具备良好脉冲功率耐受能力以及散热性。The rapid development of UHV DC technology plays an important role in the optimal allocation of energy in China. In the project, the UHV DC converter valve uses multiple thyristors in series to commutate, and the damping circuit is connected in parallel with the thyristors. The problem of its pressure equalization. After accumulating energy, the snubber capacitor is released as a pulse and is consumed in the damping resistor connected in series with it. Therefore, the damping resistor needs to have good pulse power withstand capability and heat dissipation.
目前投入使用的换流阀阻尼电阻的散热方式主要有两种：一种采用间接水冷方式，首先将热量传至与阻尼电阻接触的散热器表面，后由散热器内部循环冷却水将热量带走；间接水冷方式是用阻尼电阻棒插入散热器内，通过散热器中冷却水间接带走热量的方式散热，这种方式的缺点是：第一，散热能力较弱；第二，散热器体积比较大；第三，散热器耗水量大。另一种采用直接水冷方式，将阻尼电阻布局在PVDF壳体的水路中，冷却水直接接触电阻进行冷却。直接水冷方式散热能力比间接冷却法有所提高，但是还有它的局限性：第一，由于金属电阻直接与水接触，要有专门的防腐电极，增加了结构设计的复杂性；第二，水路的容水量较小，干烧能力差，断流时间一般小于3秒；第三，壳体材料为PVDF，其耐压能力较金属材料差。第四，晶闸管和阻尼电阻散热器设计都是独立的，这样不仅增加了结构整体尺寸，还因为连接接口多而减小了水路连接的可靠性。There are two main ways to dissipate the damping resistors of the converter valve that are currently in use: one uses indirect water cooling to first transfer heat to the surface of the radiator that is in contact with the damping resistor, and then the cooling water inside the radiator is used to remove the heat. The indirect water cooling method uses a damping resistor rod to be inserted into the heat sink, and the heat is dissipated indirectly by the cooling water in the radiator. The disadvantages of this method are: first, the heat dissipation capability is weak; second, the heat sink volume comparison Big; third, the radiator consumes a lot of water. The other method uses direct water cooling, and the damping resistor is placed in the water path of the PVDF housing, and the cooling water is directly contacted with the resistor for cooling. Direct cooling is more efficient than indirect cooling, but it has its limitations: First, because the metal resistance is directly in contact with water, special anti-corrosion electrodes are required, which increases the complexity of structural design. Second, The water capacity of the waterway is small, the dry burning capacity is poor, and the current interruption time is generally less than 3 seconds. Third, the shell material is PVDF, and its pressure resistance is worse than that of the metal material. Fourth, the design of the thyristor and the damper resistor heat sink are independent, which not only increases the overall size of the structure, but also reduces the reliability of the waterway connection because of the many connection interfaces.
晶闸管在工作时功耗很大，导致结温很高。为保证其能够正常工作，必须采用水冷散热器对其进行冷却。晶闸管散热器是换流阀水冷却系统中不可缺少的一个组成部分，其作用是将晶闸管产生的热量通过冷却液携带到系统中，经过二次热交换，将所吸收的热散发到空气中的热交换装置。因此，晶闸管散热器性能的好坏直接影响换流阀的性能效果及其可靠性。Thyristors consume a lot of power during operation, resulting in high junction temperatures. To ensure that it works properly, it must be cooled with a water-cooled radiator. The thyristor radiator is an indispensable component of the water-cooling system of the converter valve. Its function is to carry the heat generated by the thyristor into the system through the coolant. After the second heat exchange, the absorbed heat is dissipated into the air. Heat exchange device. Therefore, the performance of the thyristor radiator directly affects the performance and reliability of the converter valve.
水冷系统在当前被广泛应用于直流输电换流阀冷却中，而晶闸管和阻尼电阻是水冷系统的核心冷却对象之一。因此，晶闸管和阻尼电阻散热器设计的合理性对水冷系统的良好运行起到非常重要的作用。Water-cooled systems are currently widely used in DC transmission converter cooling, and thyristors and damping resistors are one of the core cooling targets for water-cooled systems. Therefore, the rationality of the design of the thyristor and the damper resistor heat sink plays a very important role in the good operation of the water cooling system.
发明内容Summary of the invention
为了克服上述现有技术的不足，本发明提供一种基于阻尼电阻的串联水冷散热器，将晶闸管和阻尼电阻的散热功能串联整合在一起，具有体积小，散热能力强，结构简单，水容量大，耐压能力强等特点。In order to overcome the above deficiencies of the prior art, the present invention provides a series water-cooled heat sink based on a damping resistor, which integrates the heat dissipation functions of the thyristor and the damping resistor in series, has a small volume, strong heat dissipation capability, simple structure, and large water capacity. , pressure resistance and other characteristics.
为了实现上述发明目的，本发明采取如下技术方案：
In order to achieve the above object, the present invention adopts the following technical solutions:
本发明提供一种基于阻尼电阻的串联水冷散热器，所述散热器包括散热器主体、晶闸管和电阻，所述散热器主体包括铝质面板、水道和水道壁构成的散热器腔体、进水口以及出水口；所述晶闸管贴合在所述铝质面板的表面，所述进水口和出水口分别设于所述散热器主体的顶部和底部，所述散热器腔体设有两个，且位于所述铝质面板的内部；所述电阻设置在所述水道壁内。The invention provides a series-connected water-cooled heat sink based on a damping resistor, the heat sink comprising a heat sink body, a thyristor and a resistor, the heat sink body comprising an aluminum panel, a radiator cavity formed by a water channel and a waterway wall, and a water inlet And a water outlet; the thyristor is attached to a surface of the aluminum panel, and the water inlet and the water outlet are respectively disposed at a top and a bottom of the heat sink body, and the heat sink cavity is provided with two Located inside the aluminum panel; the resistor is disposed within the waterway wall.
所述水道包括串联的晶闸管散热水道和阻尼电阻散热水道。The water channel includes a thyristor heat dissipation channel and a damping resistor cooling water channel connected in series.
所述阻尼电阻散热水道为螺旋型结构，所述晶闸管散热水道为蛇形结构或螺旋型结构。The damping resistor heat dissipating water channel is a spiral structure, and the thyristor heat dissipating water channel is a serpentine structure or a spiral structure.
所述阻尼电阻散热水道底部为铝质材料，其两侧的水道壁为绝缘材料。The bottom of the damping resistor cooling water channel is made of aluminum material, and the water channel walls on both sides are insulating materials.
所述晶闸管散热水道的水道壁采用铝质材料，其厚度为5～10mm。The water channel wall of the thyristor heat dissipating water channel is made of aluminum material and has a thickness of 5 to 10 mm.
所述电阻包括阻尼电阻和取能电阻；所述阻尼电阻为高压直流输电换流阀用阻尼电阻，所述取能电阻为高压直流输电换流阀用取能电阻。The resistor includes a damping resistor and a power-carrying resistor; the damping resistor is a damping resistor for the high-voltage DC power transmission converter valve, and the energy-receiving resistor is a power-receiving resistor for the high-voltage DC power transmission converter valve.
所述阻尼电阻和取能电阻均通过相应的电阻端子接引线。The damping resistor and the energizing resistor are connected to the lead through corresponding resistance terminals.
所述散热器腔体包括阻尼电阻散热器腔体和晶闸管散热器腔体，两者均与铝质面板采用焊接方式固定。The heat sink cavity includes a damping resistor heat sink cavity and a thyristor heat sink cavity, both of which are fixed to the aluminum panel by soldering.
在压铸前，所述水道的表面做如下工艺处理：Before the die casting, the surface of the water channel is treated as follows:
1)进行110目喷砂；1) Perform 110 mesh sandblasting;
2)电镀，镀层厚度为0.01mm。2) Electroplating, the plating thickness is 0.01 mm.
所述水道表面的电镀采用高温化学镀镍工艺，流程依次为：接头封闭，除油，去氧化皮，出光，中间层电镀，化学镀镍，钝化，干燥，低温退火；The surface of the water channel is plated by a high-temperature electroless nickel plating process in the following order: joint sealing, degreasing, descaling, light extraction, intermediate layer plating, electroless nickel plating, passivation, drying, low temperature annealing;
镀层技术参数如下：厚度：0.008mm；表面硬度：R45；镍含量：93％；光泽：亚光；结合力：薄片弯折试验合格。The technical parameters of the coating are as follows: thickness: 0.008 mm; surface hardness: R45; nickel content: 93%; gloss: matt; bonding force: sheet bending test qualified.
与现有技术相比，本发明的有益效果在于：Compared with the prior art, the beneficial effects of the present invention are:
1、通过将散热器和阻尼电阻串联到一个整体水冷散热器内，节省了特高压直流换流阀模块内部空间，简化了内部结构，减小了换流阀总体积，同时提高了水冷系统接口的可靠性；1. By connecting the heat sink and the damping resistor in series to an integral water-cooled radiator, the internal space of the UHV DC converter valve module is saved, the internal structure is simplified, the total volume of the converter valve is reduced, and the interface of the water cooling system is improved. Reliability
2、采用将阻尼电阻与导热绝缘材料紧密接触，冷却水通过水道壁直接将热量带走，与之前介绍间接冷却阻尼电阻的方法相比，冷却效果获得很大程度提升；2. The damping resistor is in close contact with the heat-conducting insulating material, and the cooling water directly carries the heat away through the waterway wall. Compared with the method of introducing the indirect cooling damping resistance, the cooling effect is greatly improved;
3、通过将电阻包裹在导热绝缘材料内的方式，省去了电阻的防腐电极的设计，从而降低了散热器结构复杂性；3. By wrapping the resistor in the heat conductive insulating material, the design of the anticorrosive electrode of the resistor is omitted, thereby reducing the structural complexity of the heat sink;
4、将散热器腔体及铝质面板焊接，增强了电阻的耐水压能力。4. Welding the heat sink cavity and the aluminum panel to enhance the water pressure resistance of the resistor.
图1是本发明实施例中基于阻尼电阻的串联水冷散热器主视示意图；1 is a front elevational view of a series water-cooled heat sink based on a damping resistor in an embodiment of the present invention;
图2是本发明实施例中基于阻尼电阻的串联水冷散热器仰视示意图；2 is a schematic bottom view of a series water-cooled heat sink based on a damping resistor in an embodiment of the present invention;
图3是本发明实施例中基于阻尼电阻的串联水冷散热器A向剖面示意图；3 is a schematic cross-sectional view of a series water-cooled heat sink A based on a damping resistor according to an embodiment of the present invention;
图4是本发明实施例中基于阻尼电阻的串联水冷散热器B向剖面示意图；
4 is a cross-sectional view showing a B-direction of a series water-cooled heat sink based on a damping resistor according to an embodiment of the present invention;
其中，1-散热器主体，2-阻尼电阻散热器腔体，3-晶闸管散热器腔体，4-铝质面板，5-晶闸管贴合面，6-进水口，7-出水口，8-阻尼电阻散热水道，9-阻尼电阻散热水道的水道壁，10-取能电阻，11-阻尼电阻，12-晶闸管散热水道，13-晶闸管散热水道的水道壁。Among them, 1- radiator main body, 2-damper resistance radiator cavity, 3-thyristor radiator cavity, 4-aluminum panel, 5-thyristor fitting surface, 6-inlet, 7-outlet, 8- Damping resistor cooling water channel, 9-damping resistor cooling channel water channel wall, 10-energy resistor, 11-damping resistor, 12-thyristor cooling channel, 13-thyristor cooling channel water channel wall.
下面结合附图对本发明作进一步详细说明。The invention will be further described in detail below with reference to the accompanying drawings.
本发明提供一种基于阻尼电阻的串联水冷散热器，所述散热器包括散热器主体1、晶闸管和电阻，所述散热器主体1包括铝质面板4、水道和水道壁构成的散热器腔体、进水口6以及出水口7；所述晶闸管贴合在所述铝质面板4的表面，所述进水口6和出水口7分别设于所述散热器主体1的顶部和底部，所述散热器腔体设有两个，且位于所述铝质面板4的内部；所述电阻设置在所述水道壁内。The present invention provides a series-connected water-cooled heat sink based on a damping resistor, the heat sink comprising a heat sink body 1, a thyristor and a resistor, the heat sink body 1 comprising a heat sink cavity formed by an aluminum panel 4, a water channel and a waterway wall The water inlet 6 and the water outlet 7; the thyristor is attached to the surface of the aluminum panel 4, and the water inlet 6 and the water outlet 7 are respectively disposed at the top and the bottom of the heat sink body 1, respectively. The chamber is provided with two and located inside the aluminum panel 4; the resistor is disposed within the channel wall.
所述水道包括串联的晶闸管散热水道12和阻尼电阻散热水道8。The water channel includes a thyristor heat dissipating channel 12 and a damping resistor cooling water channel 8 connected in series.
所述阻尼电阻散热水道8为螺旋型结构，所述晶闸管散热水道12为蛇形结构或螺旋型结构。The damping resistor heat dissipating water channel 8 has a spiral structure, and the thyristor heat dissipating water channel 12 has a serpentine structure or a spiral structure.
所述阻尼电阻散热水道8底部为铝质材料，其两侧的水道壁9为绝缘材料。The bottom of the damping resistor cooling water channel 8 is made of aluminum, and the water channel walls 9 on both sides are insulating materials.
所述晶闸管散热水道的水道壁13采用铝质材料，其厚度为5～10mm。The water channel wall 13 of the thyristor heat dissipating water channel is made of an aluminum material and has a thickness of 5 to 10 mm.
所述电阻包括阻尼电阻11和取能电阻10；所述阻尼电阻11为高压直流输电换流阀用阻尼电阻，所述取能电阻10为高压直流输电换流阀用取能电阻。The resistor includes a damping resistor 11 and a capacitor resistor 10; the damping resistor 11 is a damping resistor for a high-voltage DC transmission converter valve, and the energy-carrying resistor 10 is a resistor for a high-voltage DC transmission converter valve.
所述阻尼电阻11和取能电阻10均通过相应的电阻端子接引线。Both the damping resistor 11 and the energizing resistor 10 are connected to the leads through corresponding resistor terminals.
所述散热器腔体包括阻尼电阻散热器腔体2和晶闸管散热器腔体3，两者均与铝质面板4采用焊接方式固定。The heat sink cavity includes a damping resistor heat sink cavity 2 and a thyristor heat sink cavity 3, both of which are fixed to the aluminum panel 4 by soldering.
在压铸前，所述水道的表面做如下工艺处理：Before the die casting, the surface of the water channel is treated as follows:
1)进行110目喷砂；1) Perform 110 mesh sandblasting;
2)电镀，镀层厚度为0.01mm。2) Electroplating, the plating thickness is 0.01 mm.
所述水道表面的电镀采用高温化学镀镍工艺，流程依次为：接头封闭，除油，去氧化皮，出光，中间层电镀，化学镀镍，钝化，干燥，低温退火；The surface of the water channel is plated by a high-temperature electroless nickel plating process in the following order: joint sealing, degreasing, descaling, light extraction, intermediate layer plating, electroless nickel plating, passivation, drying, low temperature annealing;
镀层技术参数如下：厚度：0.008mm；表面硬度：R45；镍含量：93％；光泽：亚光；结合力：薄片弯折试验合格。The technical parameters of the coating are as follows: thickness: 0.008 mm; surface hardness: R45; nickel content: 93%; gloss: matt; bonding force: sheet bending test qualified.
本发明提供的水冷散热器结构比PVDF水电阻散热结构的耐水压能力强。同时上下表面的铝质面板4也是晶闸管的散热接触面，通过强迫对流方式给晶闸管散热。本设计将晶闸管散热器和水冷阻尼电阻串联整合到一个结构中，简化了水冷系统的结构，并减少了水冷系统的接口，从而提高系统可靠性。The water-cooled heat sink structure provided by the invention has stronger water pressure resistance than the PVDF water resistance heat dissipation structure. At the same time, the aluminum panel 4 on the upper and lower surfaces is also the heat-dissipating contact surface of the thyristor, and the thyristor is radiated by forced convection. This design integrates the thyristor heat sink and the water-cooled damping resistor in series into one structure, which simplifies the structure of the water-cooled system and reduces the interface of the water-cooled system, thereby improving system reliability.
最后应当说明的是：以上实施例仅用以说明本发明的技术方案而非对其限制，尽管参照上述实施例对本发明进行了详细的说明，所属领域的普通技术人员应当理解：依然可以对本发明的具体实施方式进行修改或者等同替换，而未脱离本发明精神和范围的任何修改或者等同替换，其均应涵盖在本发明的权利要求范围当中。
Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present invention and are not limited thereto, although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be The invention is to be construed as being limited by the scope of the appended claims.
Claims (10)
- 一种基于阻尼电阻的串联水冷散热器，其特征在于：所述散热器包括散热器主体、晶闸管和电阻，所述散热器主体包括铝质面板、水道和水道壁构成的散热器腔体、进水口以及出水口；所述晶闸管贴合在所述铝质面板的表面，所述进水口和出水口分别设于所述散热器主体的顶部和底部，所述散热器腔体设有两个，且位于所述铝质面板的内部；所述电阻设置在所述水道壁内。A series-connected water-cooled heat sink based on a damping resistor, wherein the heat sink comprises a heat sink body, a thyristor and a resistor, and the heat sink body comprises a heat sink cavity formed by an aluminum panel, a water channel and a waterway wall, a water outlet and a water outlet; the thyristor is attached to a surface of the aluminum panel, and the water inlet and the water outlet are respectively disposed at a top and a bottom of the heat sink body, and the heat sink cavity is provided with two And located inside the aluminum panel; the resistor is disposed within the waterway wall.
- 根据权利要求1所述的基于阻尼电阻的串联水冷散热器，其特征在于：所述水道包括串联的晶闸管散热水道和阻尼电阻散热水道。The series-connected water-cooled heat sink based on a damping resistor according to claim 1, wherein the water channel comprises a thyristor heat dissipating water channel and a damping resistor heat dissipating water channel connected in series.
- 根据权利要求2所述的基于阻尼电阻的串联水冷散热器，其特征在于：所述阻尼电阻散热水道为螺旋型结构，所述晶闸管散热水道为蛇形结构或螺旋型结构。The series-connected water-cooled heat sink based on a damping resistor according to claim 2, wherein the damping resistor heat dissipation channel is a spiral structure, and the thyristor heat dissipation channel is a serpentine structure or a spiral structure.
- 根据权利要求3所述的基于阻尼电阻的串联水冷散热器，其特征在于：所述阻尼电阻散热水道底部为铝质材料，其两侧的水道壁为绝缘材料。The series-connected water-cooled heat sink based on a damping resistor according to claim 3, wherein the bottom of the damping resistor heat dissipation channel is made of aluminum, and the water channel walls on both sides are insulating materials.
- 根据权利要求3所述的基于阻尼电阻的串联水冷散热器，其特征在于：所述晶闸管散热水道的水道壁采用铝质材料，其厚度为5～10mm。The series-connected water-cooled heat sink based on a damping resistor according to claim 3, wherein the water channel wall of the thyristor heat dissipating water channel is made of aluminum material and has a thickness of 5 to 10 mm.
- 根据权利要求1所述的基于阻尼电阻的串联水冷散热器，其特征在于：所述电阻包括阻尼电阻和取能电阻；所述阻尼电阻为高压直流输电换流阀用阻尼电阻，所述取能电阻为高压直流输电换流阀用取能电阻。The series-connected water-cooled heat sink based on a damping resistor according to claim 1, wherein the resistor comprises a damping resistor and a power-receiving resistor; and the damping resistor is a damping resistor for a high-voltage DC power transmission converter valve, wherein the energy is The resistance is the energy-receiving resistor for the high-voltage DC transmission converter valve.
- 根据权利要求6所述的基于阻尼电阻的串联水冷散热器，其特征在于：所述阻尼电阻和取能电阻均通过相应的电阻端子接引线。The series-connected water-cooled heat sink based on a damping resistor according to claim 6, wherein the damping resistor and the energizing resistor are connected to the lead through corresponding resistor terminals.
- 根据权利要求1所述的基于阻尼电阻的串联水冷散热器，其特征在于：所述散热器腔体包括阻尼电阻散热器腔体和晶闸管散热器腔体，两者均与铝质面板采用焊接方式固定。The tandem resistor-based series water-cooled heat sink according to claim 1, wherein the heat sink cavity comprises a damping resistor radiator cavity and a thyristor heat sink cavity, and both are welded to the aluminum panel. fixed.
- 根据权利要求2所述的基于阻尼电阻的串联水冷散热器，其特征在于：在压铸前，所述水道的表面做如下工艺处理：The tandem resistor-based series water-cooled heat sink according to claim 2, wherein the surface of the water channel is processed as follows before die casting:1)进行110目喷砂；1) Perform 110 mesh sandblasting;2)电镀，镀层厚度为0.01mm。2) Electroplating, the plating thickness is 0.01 mm.
- 根据权利要求9所述的基于阻尼电阻的串联水冷散热器，其特征在于：所述水道表面的电镀采用高温化学镀镍工艺，流程依次为：接头封闭，除油，去氧化皮，出光，中间层电镀，化学镀镍，钝化，干燥，低温退火；The series-connected water-cooled heat sink based on the damping resistor according to claim 9, wherein the surface of the water channel is plated by a high-temperature electroless nickel plating process, and the flow sequence is: joint sealing, degreasing, descaling, light output, intermediate Layer plating, electroless nickel plating, passivation, drying, low temperature annealing;镀层技术参数如下：厚度：0.008mm；表面硬度：R45；镍含量：93％；光泽：亚光；结合力：薄片弯折试验合格。 The technical parameters of the coating are as follows: thickness: 0.008 mm; surface hardness: R45; nickel content: 93%; gloss: matt; bonding force: sheet bending test qualified.
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| CN103578667B (en) * | 2013-11-11 | 2016-04-20 | 国家电网公司 | A kind of series connection water-filled radiator based on damping resistance |
| CN104282642B (en) * | 2014-09-28 | 2017-06-06 | 国家电网公司 | A kind of water-cooling heat radiating device |
| TWI551843B (en) * | 2015-01-19 | 2016-10-01 | 深圳興奇宏科技有限公司 | Cold plate structure and manufacuring method |
| CN105915075A (en) * | 2016-04-27 | 2016-08-31 | 许继集团有限公司 | Direct current power transmission converter valve and water cooling apparatus |
| CN105916349A (en) * | 2016-04-27 | 2016-08-31 | 许继集团有限公司 | Direct current power transmission converter valve and water cooling radiator |
| CN106533131B (en) * | 2016-11-18 | 2023-07-14 | 云南电网有限责任公司电力科学研究院 | DC converter valve with pulse excitation device |
| CN108495528B (en) * | 2018-04-17 | 2024-02-13 | 全球能源互联网研究院有限公司 | Heat dissipation device |
| CN108492950B (en) * | 2018-04-17 | 2024-02-13 | 全球能源互联网研究院有限公司 | Thyristor and damping resistor heat dissipation mechanism |
| CN115482981A (en) * | 2021-06-16 | 2022-12-16 | 北京科益虹源光电技术有限公司 | Coiled liquid resistance device, radiator comprising same and case |
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| CN201570334U (en) * | 2009-11-27 | 2010-09-01 | 中国电力科学研究院 | Damping resistance indirect water-cooling device of direct current converter valve |
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| CN103578667A (en) * | 2013-11-11 | 2014-02-12 | 国家电网公司 | Series water-cooled radiator based on damping resistors |
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