WO2020124522A1 - 一种便于散热的配电柜 - Google Patents

一种便于散热的配电柜 Download PDF

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Publication number
WO2020124522A1
WO2020124522A1 PCT/CN2018/122542 CN2018122542W WO2020124522A1 WO 2020124522 A1 WO2020124522 A1 WO 2020124522A1 CN 2018122542 W CN2018122542 W CN 2018122542W WO 2020124522 A1 WO2020124522 A1 WO 2020124522A1
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Prior art keywords
cabinet
blower
power distribution
heat dissipation
bottom plate
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PCT/CN2018/122542
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English (en)
French (fr)
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刘天龙
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烟台三水电器有限公司
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Publication of WO2020124522A1 publication Critical patent/WO2020124522A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56—Cooling; Ventilation

Definitions

  • the invention relates to a power distribution cabinet convenient for heat dissipation, and belongs to the technical field of electric appliance control.
  • the power distribution cabinet is mostly used for power users such as power plants, substations, factories and mines. It is used as a power distribution system with AC 50-60HZ and a rated working current of 3150A. It is used for power conversion, distribution and control of power, lighting and distribution equipment.
  • the structure design of the distribution cabinet in the existing design is generally to install all electrical components on the bottom plate, and then install the bottom plate on the inner wall of the cabinet of the distribution cabinet through screws, because the long-term operation of the distribution cabinet will cause the cabinet Of electrical components generate heat accumulation, if the heat dissipation is not good, it is easy to cause the electrical components in the distribution cabinet to malfunction, maintenance costs increase, and if it can not be found in time, there will be a big hidden safety hazard;
  • the solution is to install an exhaust fan on the side wall of the cabinet to extract the heat generated by the electrical components inside the cabinet to the outside of the cabinet. Since the heat that causes high temperature comes from the electrical component itself, the temperature of the electrical component itself is very high, but the exhaust fan The hot air in the cabinet can only be evacuated indirectly, so this heat dissipation effect is not ideal.
  • the present invention provides a power distribution cabinet that is easy to dissipate heat, which is convenient for discharging heat in the cabinet in time, guarantees the normal operation of the power distribution cabinet, and extends the service life of the power distribution cabinet.
  • a power distribution cabinet that facilitates heat dissipation includes a cabinet body, a cabinet door, and a bottom plate for installing electrical components.
  • the bottom plate is provided with several hollow heat dissipation holes, and the inner wall of the cabinet body
  • At least two isolation frames are fixedly installed, the bottom plate is installed on the isolation frame, at least one exhaust fan is installed on the top of the cabinet and the side walls of the cabinet, and at least one blower connecting the inside and the outside of the cabinet is installed on the inner wall of the cabinet.
  • the air inlet of the blower communicates with the outside of the cabinet
  • the air outlet of the blower communicates with the inside of the cabinet
  • a dust-proof device with a filtering function is provided outside the blower
  • the dust-proof device includes a dust cover and a filter net at both ends, One end of the dust cover is connected to the air inlet of the blower, and a filter net is installed at the other end.
  • the beneficial effects of the present invention are: by providing a bottom plate with heat dissipation holes and an isolation frame between the bottom plate and the inner wall of the cabinet, the air circulation at the bottom plate is increased to prevent the electrical components on the bottom plate from generating excessive heat and causing heat accumulation;
  • An exhaust fan and a blower are provided, so that the normal temperature air outside the cabinet enters the cabinet from the blower, and the hot air in the cabinet is discharged from the cabinet by the exhaust fan, so that the two form a circulating air flow, thereby accelerating the heat inside the cabinet
  • the discharge improves the heat dissipation efficiency of the cabinet body, thereby prolonging the service life of the power distribution cabinet.
  • the present invention can also be improved as follows.
  • a temperature sensor and a PLC control unit are installed on the bottom plate, the temperature sensor is electrically connected to the PLC control unit, and the PLC control unit is electrically connected to the exhaust fan and the blower, respectively.
  • the beneficial effect of adopting the above further scheme is that, by setting a temperature sensor and a PLC control unit, the temperature around the bottom plate in the cabinet is monitored, and the signal is fed back to the PLC control unit, and the PLC control unit acts on the blower and exhaust fan to control the cabinet The heat in the body is discharged outside the cabinet in time.
  • an air inlet duct is also installed on the dustproof device, one end of the air inlet duct is communicated with the filter screen, and the other end extends to the side wall of the cabinet body to communicate with the outside atmosphere.
  • the beneficial effect of adopting the above further scheme is that, by setting the air inlet duct, it is suitable for the working condition where the power distribution cabinet is placed against the wall, which is beneficial to the air circulation of the air inlet of the blower and improves the heat dissipation efficiency.
  • a reinforcement layer is provided on the peripheral edges of the bottom plate, and reinforcement ribs are provided on the inner side of the cabinet door.
  • reinforcing ribs use C-shaped steel.
  • the beneficial effect of adopting the above further scheme is that, by providing a reinforcement layer and reinforcement ribs, the structural strength of the power distribution cabinet is improved, and the service life of the power distribution cabinet is extended.
  • the filter screen can be detachably installed.
  • the beneficial effect of using the above further scheme is to facilitate timely cleaning and maintenance of the filter screen.
  • the shape of the heat dissipation hole is a long hole or a round hole.
  • the beneficial effect of using the above further solution is to avoid heat accumulation at the bottom plate and maintain air circulation.
  • Figure 1 is a front view of the present invention
  • FIG. 2 is a schematic structural view of the present invention without electrical components installed
  • Example 3 is a rear view of the power distribution cabinet of Example 1;
  • Example 4 is a right side view of the power distribution cabinet of Example 1;
  • Figure 6 is a schematic diagram of the bottom plate structure
  • FIG. 7 is a partial rear cross-sectional view of the power distribution cabinet of Embodiment 2.
  • cabinet body 2. cabinet door, 3. exhaust fan, 4. ribs, 5. isolation frame, 6. blower, 7. dust cover, 8. filter screen, 9. bottom plate, 10. inlet Air duct, 11. Side wall of cabinet, 12. Inside wall of cabinet, 91. Heat dissipation hole, 92. Reinforcement layer.
  • a power distribution cabinet convenient for heat dissipation includes a cabinet body 1, a cabinet door 2 and a bottom plate 9 for installing electrical components.
  • the inside of the cabinet door 2 is provided with reinforcement ribs 4 which are made of C-shaped steel and reinforced by setting Ribs 4, improve the structural strength of the power distribution cabinet and prolong the service life of the power distribution cabinet
  • the bottom plate 9 is provided with a number of hollow heat dissipation holes 91, and the shape of the heat dissipation holes 91 is a long hole to avoid the Heat accumulates to maintain air circulation.
  • the surrounding edges of the bottom plate 9 are provided with reinforcement layers 92.
  • At least two isolation frames 5 are welded and installed on the inner wall 12 of the cabinet.
  • the isolation frame 5 is made of channel steel.
  • the bottom plate 9 is installed on the isolation frame 5, the top of the cabinet 1 and the side wall 11 of the cabinet are equipped with two exhaust fans 3, the inner wall of the cabinet 1 is installed with two blowers 6 connecting the inside of the cabinet 1 and the outside, and the air inlet of the blower 6 communicates with the cabinet 1 outside, the air outlet of the blower 6 communicates with the inside of the cabinet 1, and the outside of the blower 6 is provided with a dustproof device with a filtering function, the dustproof device includes a dustproof cover 7 and a filter screen 8 that are open at both ends, so One end of the dust cover 7 is connected to the air inlet of the blower 6, and the other end is installed with a filter screen 8.
  • the filter screen 8 is detachably installed, which facilitates timely cleaning and maintenance of the filter screen 8.
  • a temperature sensor and a PLC control unit are installed on the bottom plate 9, the temperature sensor is electrically connected to the PLC control unit, the PLC control unit is electrically connected to the exhaust fan 3 and the blower 6, respectively, and the temperature sensor is selected from Siemens QAC21.
  • the PLC control unit uses Siemens S7-200. By setting a temperature sensor and a PLC control unit, the temperature around the bottom plate 9 in the cabinet 1 is monitored, and the signal is fed back to the PLC control unit.
  • the PLC control unit acts on the blower 6 and The exhaust fan 3 exhausts the heat in the cabinet 1 to the outside of the cabinet in time.
  • the air circulation at the bottom plate 9 is increased To prevent the electrical components on the bottom plate 9 from generating too much heat and causing heat accumulation; by setting the exhaust fan 3 and the blower 6, the ambient temperature air outside the cabinet 1 is entered into the cabinet 1 by the blower 6, and the hot air in the cabinet 1 The cabinet 1 is discharged by the exhaust fan 3 to form a circulating air flow, thereby accelerating the discharge of heat inside the cabinet 1, improving the heat dissipation efficiency of the cabinet 1, and extending the service life of the power distribution cabinet.
  • a power distribution cabinet convenient for heat dissipation includes a cabinet body 1, a cabinet door 2 and a bottom plate 9 for installing electrical components.
  • the inside of the cabinet door 2 is provided with reinforcement ribs 4 which are made of C-shaped steel and reinforced by setting Ribs 4, improve the structural strength of the power distribution cabinet and prolong the service life of the power distribution cabinet.
  • the bottom plate 9 is provided with a number of hollow heat dissipation holes 91.
  • the shape of the heat dissipation holes 91 is a circular hole shape to avoid Heat accumulates to maintain air circulation.
  • the surrounding edges of the bottom plate 9 are provided with reinforcement layers 92.
  • At least two isolation frames 5 are welded and installed on the inner wall 12 of the cabinet.
  • the isolation frame 5 is made of channel steel.
  • the bottom plate 9 is installed on the isolation frame 5, the top of the cabinet 1 and the side wall 11 of the cabinet are equipped with an exhaust fan 3, the inner wall of the cabinet 1 is installed with two blowers 6 connecting the inside of the cabinet 1 and the outside, and the air inlet of the blower 6 communicates with the cabinet 1 Outside, the air outlet of the blower 6 communicates with the inside of the cabinet 1, and the outside of the blower 6 is provided with a dustproof device with a filtering function.
  • the dustproof device includes a dustproof cover 7 and a filter screen 8 that are open at both ends. One end of the dust cover 7 is connected to the air inlet of the blower 6, and the other end is installed with a filter screen 8.
  • the filter screen 8 can be detachably installed to facilitate timely cleaning and maintenance of the filter screen 8.
  • the dust filter device is also installed Air duct 10, one end of the air inlet duct 10 communicates with the filter screen 8, and the other end extends to the side wall 11 of the cabinet body to communicate with the outside atmosphere.
  • Air duct 10 By providing the air inlet duct 10, it is suitable for the working condition where the power distribution cabinet is placed against the wall. It is conducive to the air circulation of the air inlet of the blower 6 and improves the heat dissipation efficiency.
  • a temperature sensor and a PLC control unit are installed on the bottom plate 9, the temperature sensor is electrically connected to the PLC control unit, the PLC control unit is electrically connected to the exhaust fan 3 and the blower 6, respectively, and the temperature sensor is selected from Siemens QAC21.
  • the PLC control unit uses Siemens S7-200. By setting a temperature sensor and a PLC control unit, the temperature around the bottom plate 9 in the cabinet 1 is monitored, and the signal is fed back to the PLC control unit.
  • the PLC control unit acts on the blower 6 and The exhaust fan 3 exhausts the heat in the cabinet 1 to the outside of the cabinet in time.
  • the air circulation at the bottom plate 9 is increased To prevent the electrical components on the bottom plate 9 from generating too much heat and causing heat accumulation; by setting the exhaust fan 3 and the blower 6, the ambient temperature air outside the cabinet 1 is entered into the cabinet 1 by the blower 6, and the hot air in the cabinet 1 The cabinet 1 is discharged by the exhaust fan 3 to form a circulating air flow, thereby accelerating the discharge of heat inside the cabinet 1, improving the heat dissipation efficiency of the cabinet 1, and extending the service life of the power distribution cabinet.

Abstract

一种便于散热的配电柜，包括柜体（1）、柜门（2）和用于安装电器元件的底板（9），该底板上设置若干个镂空的散热孔（91），柜体内壁安装至少两个隔离架（5），该底板安装在隔离架上，柜体顶部和柜体侧壁均安装至少一个排气扇（3），柜体内壁安装至少一个连通柜体内部与外部的鼓风机（6），该鼓风机的进风口连通柜体外部，该鼓风机的出风口连通柜体内部，该鼓风机外部设置具有过滤功能的防尘装置，该防尘装置包括两端开口的防尘罩（7）和过滤网（8），该防尘罩的一端与鼓风机的进风口连接，另一端安装过滤网，便于将柜体内的热量及时排出，保证配电柜的正常运行，延长配电柜的使用寿命。

Description

一种便于散热的配电柜 技术领域
本发明涉及一种便于散热的配电柜，属于电器控制技术领域。
背景技术
配电柜多用于发电厂、变电站、厂矿企业等电力用户，作为交流50-60HZ，额定工作电流至3150A的配电系统中，作为动力、照明及配电设备的电能转换、分配与控制之用，现有设计中的配电柜的结构设计一般是将所有的电器元件安装在底板上，然后将底板通过螺丝安装在配电柜的柜体内壁上，因为配电柜长期运行会导致柜体内的电器元件产生热量积聚，如果不能很好的散热，极易导致配电柜内的电器元件发生故障，维修成本增加，而且如果不能及时发现则会存在很大的安全隐患；现有技术中的解决方案是在柜体侧壁安装排风扇，将柜体内电器元件产生的热量抽出至柜体外，由于导致高温的热量来源于电器元件自身，所以电器元件自身的温度是很高的，但是排气扇只能间接的抽走柜体内的热空气，所以这种散热效果并不理想。
发明内容
本发明针对现有技术存在的不足，提供一种便于散热的配电柜，便于将柜体内的热量及时排出，保证配电柜的正常运行，延长配电柜的使用寿命。
本发明解决上述技术问题的技术方案如下：一种便于散热的配电柜，包括柜体、柜门和用于安装电器元件的底板，所述底板上设置若干个镂空的散热孔，柜体内壁固定安装至少两个隔离架，所述底板安装在隔离架上，柜体 顶部和柜体侧壁均安装至少一个排气扇，柜体内壁安装至少一个连通柜体内部与外部的鼓风机，所述鼓风机的进风口连通柜体外部，所述鼓风机的出风口连通柜体内部，所述鼓风机外部设置具有过滤功能的防尘装置，所述防尘装置包括两端开口的防尘罩和过滤网，所述防尘罩的一端与鼓风机的进风口连接，另一端安装过滤网。
本发明的有益效果是：通过设置带有散热孔的底板以及在底板与柜体内壁之间设置隔离架，增加底板处的空气流通，防止底板上的电器元件产生热量过多导致热量积聚；通过设置排气扇和鼓风机，实现柜体外部的常温空气由鼓风机进入柜体，同时柜体内的热空气由排气扇排出柜体，使两者形成流通的空气流，从而加速柜体内部热量的排出，提高了柜体的散热效率，从而延长配电柜的使用寿命。
在上述技术方案的基础上，本发明还可以做如下改进。
进一步，所述底板上安装温度传感器和PLC控制单元，所述温度传感器与PLC控制单元电连接，所述PLC控制单元分别与排气扇和鼓风机电连接。
采用上述进一步方案的有益效果是，通过设置温度传感器和PLC控制单元，对柜体内底板周围的温度进行监测，并将信号反馈至PLC控制单元，通过PLC控制单元作用于鼓风机和排气扇将柜体内的热量及时排出至柜体外。
进一步，所述防尘装置上还安装进风管道，所述进风管道一端与过滤网连通，另一端延伸至柜体侧壁与外部大气连通。
采用上述进一步方案的有益效果是，通过设置进风管道，适用于配电柜靠墙放置的工况，有利于鼓风机进风口的空气流通，提高散热效率。
进一步，所述底板的四周边缘部设置加固层，所述柜门内侧设置加固筋。
进一步，所述加固筋采用C型钢。
采用上述进一步方案的有益效果是，通过设置加固层和加固筋，提高配电柜的结构强度，延长配电柜的使用寿命。
进一步，所述过滤网可拆卸安装。
采用上述进一步方案的有益效果是，便于对过滤网进行及时清理与维护。
进一步，所述散热孔的形状为长条孔或圆孔形状。
采用上述进一步方案的有益效果是，避免底板处的热量积聚，保持空气流通。
附图说明
图1为本发明的主视图；
图2为本发明未安装电器元件的结构示意图；
图3为实施例1配电柜的后视图；
图4为实施例1配电柜的右视图；
图5为本发明安装电器元件后的结构示意图；
图6为底板结构示意图；
图7为实施例2配电柜的后视局部剖视图。
图中1.柜体，2.柜门，3.排气扇，4.加强筋，5.隔离架，6.鼓风机，7.防尘罩，8.过滤网，9.底板，10.进风管道，11.柜体侧壁，12.柜体内壁，91.散热孔，92.加固层。
具体实施方式
以下结合附图对本发明的原理和特征进行描述，所举实例只用于解释本发明，并非用于限定本发明的范围。
实施例1
一种便于散热的配电柜，包括柜体1、柜门2和用于安装电器元件的底 板9，所述柜门2内侧设置加固筋4，所述加固筋4采用C型钢，通过设置加固筋4，提高配电柜的结构强度，延长配电柜的使用寿命，所述底板9上设置若干个镂空的散热孔91，所述散热孔91的形状为长条孔，避免底板9处的热量积聚，保持空气流通，所述底板9的四周边缘部设置加固层92，柜体内壁12焊接安装至少两个隔离架5，所述隔离架5采用槽钢，所述底板9安装在隔离架5上，柜体1顶部和柜体侧壁11均安装两个排气扇3，柜体1内壁安装两个连通柜体1内部与外部的鼓风机6，所述鼓风机6的进风口连通柜体1外部，所述鼓风机6的出风口连通柜体1内部，所述鼓风机6外部设置具有过滤功能的防尘装置，所述防尘装置包括两端开口的防尘罩7和过滤网8，所述防尘罩7的一端与鼓风机6的进风口连接，另一端安装过滤网8，所述过滤网8可拆卸安装，便于对过滤网8进行及时清理与维护。
所述底板9上安装温度传感器和PLC控制单元，所述温度传感器与PLC控制单元电连接，所述PLC控制单元分别与排气扇3和鼓风机6电连接，所述温度传感器选用西门子QAC21，所述PLC控制单元选用西门子S7-200,通过设置温度传感器和PLC控制单元，对柜体1内底板9周围的温度进行监测，并将信号反馈至PLC控制单元，通过PLC控制单元作用于鼓风机6和排气扇3将柜体1内的热量及时排出至柜体外，通过设置带有散热孔91的底板9以及在底板9与柜体内壁12之间设置隔离架5，增加底板9处的空气流通，防止底板9上的电器元件产生热量过多导致热量积聚；通过设置排气扇3和鼓风机6，实现柜体1外部的常温空气由鼓风机6进入柜体1，同时柜体1内的热空气由排气扇3排出柜体1，使两者形成流通的空气流，从而加速柜体1内部热量的排出，提高了柜体1的散热效率，从而延长配电柜的使用寿命。
实施例2
一种便于散热的配电柜，包括柜体1、柜门2和用于安装电器元件的底板9，所述柜门2内侧设置加固筋4，所述加固筋4采用C型钢，通过设置加固筋4，提高配电柜的结构强度，延长配电柜的使用寿命，所述底板9上设置若干个镂空的散热孔91，所述散热孔91的形状为圆孔形状，避免底板9处的热量积聚，保持空气流通，所述底板9的四周边缘部设置加固层92，柜体内壁12焊接安装至少两个隔离架5，所述隔离架5采用槽钢，所述底板9安装在隔离架5上，柜体1顶部和柜体侧壁11均安装一个排气扇3，柜体1内壁安装两个连通柜体1内部与外部的鼓风机6，所述鼓风机6的进风口连通柜体1外部，所述鼓风机6的出风口连通柜体1内部，所述鼓风机6外部设置具有过滤功能的防尘装置，所述防尘装置包括两端开口的防尘罩7和过滤网8，所述防尘罩7的一端与鼓风机6的进风口连接，另一端安装过滤网8，所述过滤网8可拆卸安装，便于对过滤网8进行及时清理与维护，所述防尘装置上还安装进风管道10，所述进风管道10一端与过滤网8连通，另一端延伸至柜体侧壁11与外部大气连通，通过设置进风管道10，适用于配电柜靠墙放置的工况，有利于鼓风机6进风口的空气流通，提高散热效率。
所述底板9上安装温度传感器和PLC控制单元，所述温度传感器与PLC控制单元电连接，所述PLC控制单元分别与排气扇3和鼓风机6电连接，所述温度传感器选用西门子QAC21，所述PLC控制单元选用西门子S7-200,通过设置温度传感器和PLC控制单元，对柜体1内底板9周围的温度进行监测，并将信号反馈至PLC控制单元，通过PLC控制单元作用于鼓风机6和排气扇3将柜体1内的热量及时排出至柜体外，通过设置带有散热孔91的底板9以及在底板9与柜体内壁12之间设置隔离架5，增加底板9处的空气流通，防止底板9上的电器元件产生热量过多导致热量积聚；通过设置排气扇3和鼓风机6，实现柜体1外部的常温空气由鼓风机6进入柜体1，同时柜体1内的热空气由排气扇3排出柜体1，使两者形成流通的空气流，从而加速柜 体1内部热量的排出，提高了柜体1的散热效率，从而延长配电柜的使用寿命。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，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之内。

Claims (7)

  1. 一种便于散热的配电柜，包括柜体、柜门和用于安装电器元件的底板，其特征在于：所述底板上设置若干个镂空的散热孔，柜体内壁固定安装至少两个隔离架，所述底板安装在隔离架上，柜体顶部和柜体侧壁均安装至少一个排气扇，柜体内壁安装至少一个连通柜体内部与外部的鼓风机，所述鼓风机的进风口连通柜体外部，所述鼓风机的出风口连通柜体内部，所述鼓风机外部设置具有过滤功能的防尘装置，所述防尘装置包括两端开口的防尘罩和过滤网，所述防尘罩的一端与鼓风机的进风口连接，另一端安装过滤网。
  2. 根据权利要求1所述的一种便于散热的配电柜，其特征在于：所述底板上安装温度传感器和PLC控制单元，所述温度传感器与PLC控制单元电连接，所述PLC控制单元分别与排气扇和鼓风机电连接。
  3. 根据权利要求2所述的一种便于散热的配电柜，其特征在于：所述防尘装置上还安装进风管道，所述进风管道一端与过滤网连通，另一端延伸至柜体侧壁与外部大气连通。
  4. 根据权利要求1-3任一所述的一种便于散热的配电柜，其特征在于：所述底板的四周边缘部设置加固层，所述柜门内侧设置加固筋。
  5. 根据权利要求4所述的一种便于散热的配电柜，其特征在于：所述加固筋采用C型钢。
  6. 根据权利要求1-3任一所述的一种便于散热的配电柜，其特征在于：所述过滤网可拆卸安装。
  7. 根据权利要求1或2所述的一种便于散热的配电柜，其特征在于：所述散热孔的形状为长条孔或圆孔形状。
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