CN105138103A - Power supply board and server circuit board system - Google Patents
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Abstract
Description
技术领域technical field
本发明涉及服务器技术领域，尤指一种电源板和服务器电路板系统。The invention relates to the technical field of servers, in particular to a power supply board and a server circuit board system.
背景技术Background technique
目前，由于机构、电源设计、空间等原因，在一些服务器电路板上并没有设置过流保护功能。然而，实际使用的印制电路板(PCB，PrintedCircuitBoard)可能存在短路、虚焊和冷焊等制成上的缺陷，这使得当电路板工作时很可能会造成损坏。例如，当电路板存在短路时，短路位置由于电流较大而产生大量热量，从而可能烧坏电路板。At present, due to reasons such as mechanism, power supply design, and space, some server circuit boards do not have an overcurrent protection function. However, the actual printed circuit board (PCB, Printed Circuit Board) may have manufacturing defects such as short circuit, virtual soldering and cold soldering, which makes it likely to cause damage when the circuit board is working. For example, when there is a short circuit on the circuit board, the short circuit will generate a lot of heat due to the large current, which may burn the circuit board.
此外，即使在具有过流保护功能的服务器电路板上，如220V外部电压输入，并通过电源单元(PSU，PowerSupplyUnit)转换为如12V电压进入电路板时，也有可能会造成过流情况发生，从而烧毁电路板。PCB制成缺陷、通过12V电压的连接器问题等因素都可能成为这种过流烧毁电路板的原因。然而，不论是设计缺陷、人为操作，还是其他意外因素，由于服务器(尤其是大型服务器)主板涉及的电压较多，若服务器主板发生上电异常，则极有可能会对电路板造成较大伤害。In addition, even on server circuit boards with overcurrent protection functions, such as 220V external voltage input, and when the power supply unit (PSU, PowerSupplyUnit) converts such as 12V voltage into the circuit board, it may cause overcurrent conditions to occur, thereby Burn the circuit board. Factors such as defects in PCB manufacturing and problems with connectors passing 12V voltage may be the cause of this overcurrent burning of the circuit board. However, whether it is due to design defects, human operation, or other accidental factors, due to the high voltage involved in the motherboard of the server (especially a large server), if the server motherboard is powered on abnormally, it is very likely to cause great damage to the circuit board .
因此，目前现有的不具有过流保护功能的、以及具有过流保护功能的服务器电路板在工作中均容易出现过流烧毁的情况。Therefore, the current existing server circuit boards without over-current protection function and with over-current protection function are prone to over-current burnout during operation.
发明内容Contents of the invention
为了解决上述技术问题，本发明提供了一种电源板和服务器电路板系统，能够防止过流烧毁。In order to solve the above technical problems, the present invention provides a power supply board and server circuit board system, which can prevent overcurrent burning.
为了达到本发明目的，本发明提供了一种电源板，电源板内设置有温度传感器，温度传感器用于实时监测电源板的温度值。In order to achieve the purpose of the present invention, the present invention provides a power board. A temperature sensor is arranged inside the power board, and the temperature sensor is used to monitor the temperature value of the power board in real time.
进一步地，温度传感器的数量至少包括一个。Further, the number of temperature sensors includes at least one.
进一步地，温度传感器设置在电源板中的预定区域内，其中，预定区域对应的铜箔面积大于或等于预设值。Further, the temperature sensor is arranged in a predetermined area of the power board, wherein the copper foil area corresponding to the predetermined area is greater than or equal to a preset value.
此外，本发明还提供了一种服务器电路板系统，包括电源板和控制单元，电源板内设置有温度传感器，温度传感器用于实时监测电源板的温度值；控制单元用于在温度值高于或等于预定阈值的情况下，切断外部电源对电源板的电压输入。In addition, the present invention also provides a server circuit board system, including a power board and a control unit, a temperature sensor is arranged in the power board, and the temperature sensor is used to monitor the temperature value of the power board in real time; the control unit is used for when the temperature value is higher than or equal to the predetermined threshold, cut off the voltage input of the external power supply to the power board.
进一步地，温度传感器的数量至少包括一个。Further, the number of temperature sensors includes at least one.
进一步地，温度传感器设置在电源板中的预定区域内，其中，预定区域对应的铜箔面积大于或等于预设值。Further, the temperature sensor is arranged in a predetermined area of the power board, wherein the copper foil area corresponding to the predetermined area is greater than or equal to a preset value.
与现有技术相比，本发明电源板内设有温度传感器，温度传感器用于实时监测电源板的温度值。由于温度传感器设置在电源板中，相比于外部传感器，以距离PCB铜箔较近的距离读取到更加真实准确的温度值。此外，温度传感器内置节省了外部电子元件的摆放空间。应用本发明的上述电源板，避免了电源板及服务器电路板在工作过程时候由于各种不良情况而造成的损坏，并且便于电路电路板的故障排除和维修，从而降低了研发成本。本发明的上述电源板适用任一种类型的电路板，也就是说，被保护的电路板不需要增加新的电源方案。Compared with the prior art, the power board of the present invention is provided with a temperature sensor, and the temperature sensor is used to monitor the temperature value of the power board in real time. Since the temperature sensor is set in the power board, compared with the external sensor, it can read a more realistic and accurate temperature value at a shorter distance from the PCB copper foil. In addition, the built-in temperature sensor saves space for external electronic components. The application of the above power board of the present invention avoids the damage of the power board and the server circuit board due to various adverse conditions during the working process, and facilitates troubleshooting and maintenance of the circuit board, thereby reducing the research and development cost. The above-mentioned power board of the present invention is applicable to any type of circuit board, that is to say, the protected circuit board does not need to add a new power supply solution.
当在电源板中设置多个温度传感器时，可以在更大范围内监测电源板上各处的温度，进而使得后续对电源板烧毁的可能性的判断更加准确、可靠。此外，通过在电源板中设置多个温度传感器，还可以根据监测到的电源板的多处温度来判断电源板存在过流烧毁的风险。When a plurality of temperature sensors are arranged in the power board, the temperature of various places on the power board can be monitored in a wider range, thereby making the subsequent judgment on the possibility of burning out of the power board more accurate and reliable. In addition, by arranging multiple temperature sensors in the power board, it can also be judged that the power board has a risk of overcurrent burning according to the monitored temperatures of multiple places on the power board.
温度传感器设置在电源板中的预定区域内，这样，电源板工作时，温度传感器由于设置在铜箔面积较大的位置而更加准确、直接地感应到了PCB内部铜箔的温度，比外部的传感器更加真实准确。The temperature sensor is set in a predetermined area of the power board, so that when the power board is working, the temperature sensor can more accurately and directly sense the temperature of the copper foil inside the PCB because it is set at a position with a larger copper foil area, which is better than the external sensor. More realistic and accurate.
与现有技术相比，本发明的服务器电路板系统包括电源板和控制单元，电源板内设置有温度传感器，温度传感器用于实时监测电源板的温度值；控制单元用于在温度值高于或等于预定阈值的情况下，切断外部电源对电源板的电压输入。应用本发明实施例的上述服务器电路板系统，避免了工作过程中由于各种不良情况而造成的电路板损坏，并且便于电路电路板的故障排除和维修，从而降低了研发成本。Compared with the prior art, the server circuit board system of the present invention includes a power board and a control unit, a temperature sensor is arranged in the power board, and the temperature sensor is used for real-time monitoring of the temperature value of the power board; the control unit is used for when the temperature value is higher than or equal to the predetermined threshold, cut off the voltage input of the external power supply to the power board. Applying the above server circuit board system according to the embodiment of the present invention avoids damage to the circuit board caused by various adverse conditions during the working process, and facilitates troubleshooting and maintenance of the circuit board, thereby reducing the cost of research and development.
本发明的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明而了解。本发明的目的和其他优点可通过在说明书、权利要求书以及附图中所特别指出的结构来实现和获得。Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
附图说明Description of drawings
附图用来提供对本发明技术方案的进一步理解，并且构成说明书的一部分，与本申请的实施例一起用于解释本发明的技术方案，并不构成对本发明技术方案的限制。The accompanying drawings are used to provide a further understanding of the technical solution of the present invention, and constitute a part of the description, and are used together with the embodiments of the application to explain the technical solution of the present invention, and do not constitute a limitation to the technical solution of the present invention.
图1为本发明的电源板的PCB截面图；Fig. 1 is the PCB sectional view of power board of the present invention;
图2为本发明的服务器电路板系统的系统拓扑图；Fig. 2 is a system topology diagram of the server circuit board system of the present invention;
图3为本发明的服务器电路板系统的系统框架示意图。FIG. 3 is a schematic diagram of the system framework of the server circuit board system of the present invention.
具体实施方式Detailed ways
为使本发明的目的、技术方案和优点更加清楚明白，下文中将结合附图对本发明的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.
在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行。并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.
本发明的实施例提供了一种电源板，电源板内设置有温度传感器，温度传感器用于实时监测电源板的温度值。由于温度传感器设置在电源板中，相比于外部传感器，以距离PCB铜箔较近的距离读取到更加真实准确的温度值。此外，温度传感器内置节省了外部电子元件的摆放空间。An embodiment of the present invention provides a power board. A temperature sensor is arranged inside the power board, and the temperature sensor is used to monitor the temperature value of the power board in real time. Since the temperature sensor is set in the power board, compared with the external sensor, it can read a more realistic and accurate temperature value at a shorter distance from the PCB copper foil. In addition, the built-in temperature sensor saves space for external electronic components.
如上文所述，在一些服务器电路板上并没有设置过流保护功能。因此，在这类不具有过流保护功能的服务器电路板中应用本发明的上述电源板时，可以根据温度传感器所监测的温度值来判定整个电路板的温度情况，进而可以确定是否需要切断对电路板的供电。例如，当温度过高(比如高于60℃)时，可以切断供电，以避免电路板烧毁。As mentioned above, some server boards do not have an overcurrent protection function. Therefore, when the above-mentioned power board of the present invention is applied to such server circuit boards without overcurrent protection function, the temperature of the entire circuit board can be determined according to the temperature value monitored by the temperature sensor, and then it can be determined whether to cut off the power supply board. power supply for the circuit board. For example, when the temperature is too high (such as higher than 60° C.), the power supply can be cut off to prevent the circuit board from being burned.
此外，在现有的具有过流保护功能的服务器电路板中，其保护线路通常是设计在CPU板(即服务器架构的后端板卡)上，而在电源板(即前端板卡)上没有此类保护线路，因此，例如220V外部电压通过PSU转换为例如12V电压进入电路板时可能会造成过流。这样，虽然服务器后端的CPU板具有保护电路，但是一旦前端板卡(即电源板)出现短路等情况而发生过流时，由于没有相应的保护措施，则仍会导致烧板的情况发生，这对服务器而言是致命的。相比于现有技术，当在这类具有过流保护功能的服务器电路板中应用本发明的上述电源板时，可以根据温度传感器所监测的电源板温度来断定电源板是否有发生过流的可能，进而确定是否切断外部电源对其供电，以避免电路板烧毁。In addition, in the existing server circuit boards with overcurrent protection function, the protection circuit is usually designed on the CPU board (ie, the back-end board of the server architecture), but not on the power supply board (ie, the front-end board). Such protection lines, therefore, may cause overcurrent when eg 220V external voltage is converted by PSU to eg 12V entering the board. In this way, although the CPU board at the back end of the server has a protection circuit, once the front-end board (that is, the power board) has a short circuit and an overcurrent occurs, because there is no corresponding protection measure, it will still cause board burning. fatal to the server. Compared with the prior art, when the above-mentioned power board of the present invention is applied to this type of server circuit board with overcurrent protection function, it can be concluded whether there is an overcurrent on the power board according to the temperature of the power board monitored by the temperature sensor. If possible, then determine whether to cut off the external power supply to prevent the circuit board from being burned.
由此，在服务器电路板中应用本发明的上述电源板，能够避免电源板及整个服务器电路板在工作过程时候由于各种不良情况而造成的损坏，并且能够便于电路板的故障排除和维修，从而降低研发成本。Therefore, applying the above-mentioned power board of the present invention to the server circuit board can avoid damage to the power board and the entire server circuit board due to various adverse conditions during the working process, and can facilitate troubleshooting and maintenance of the circuit board. Thereby reducing R&D costs.
此外，传统的过流保护电路设计，是根据服务器的各个功能板卡的通流，直接针对电流大小，利用电源电压控制芯片的内部设定阈值；而本发明的上述电源板则是根据电流产生热量而导致温度上升的原理、利用对温度的敏感性来实现过流保护功能的。In addition, the traditional overcurrent protection circuit design is based on the flow of each functional board of the server, directly targeting the current size, using the power supply voltage to control the internal setting threshold of the chip; and the above power board of the present invention is based on the current generation The principle of temperature rise caused by heat, and the overcurrent protection function is realized by using the sensitivity to temperature.
图1是本发明的上述电源板的PCB截面图。如图1所示，温度传感器设置在电源板内。Fig. 1 is a PCB cross-sectional view of the above-mentioned power board of the present invention. As shown in Figure 1, the temperature sensor is set in the power board.
进一步地，可以将温度传感器设置在电源板中的预定区域内，其中，预定区域对应的铜箔面积例如大于或等于预设值。这样，电源板工作时，温度传感器由于设置在铜箔面积较大的位置而更加准确、直接地感应到了PCB内部铜箔的温度，比外部的传感器更加真实准确，从而能够利用其采取的温度转换成可输出的电信号，发送给主板端的BMC(BoardManagerController，管理芯片)，以此来控制电路板前端的电路。其中，上述预设值可以根据经验值来设定，也可以通过试验的方式来确定，这里不再详述。实际应用时，例如可以在电源板大面积铜箔分布的一个或多个位置分别布置温度传感器。Further, the temperature sensor may be arranged in a predetermined area of the power board, wherein the copper foil area corresponding to the predetermined area is, for example, greater than or equal to a preset value. In this way, when the power board is working, the temperature sensor can more accurately and directly sense the temperature of the copper foil inside the PCB because it is set at a position with a larger copper foil area, which is more real and accurate than the external sensor, so that the temperature conversion taken by it can be used Convert it into an outputable electrical signal and send it to the BMC (BoardManagerController, management chip) on the motherboard side to control the circuit at the front end of the circuit board. Wherein, the aforementioned preset value may be set according to empirical values, or may be determined through experiments, which will not be described in detail here. In practical applications, for example, temperature sensors may be respectively arranged at one or more positions where the large-area copper foil of the power board is distributed.
需要说明的是，虽然图1中的示例仅示出了一个温度传感器，但在其他示例中，电源板内也可以设置多个(即两个或更多个)温度传感器。It should be noted that although the example in FIG. 1 only shows one temperature sensor, in other examples, multiple (ie, two or more) temperature sensors may also be set in the power board.
当在电源板中设置多个温度传感器时，可以在更大范围内监测电源板上各处的温度，进而使得后续对电源板烧毁的可能性的判断更加准确、可靠。When a plurality of temperature sensors are arranged in the power board, the temperature of various places on the power board can be monitored in a wider range, thereby making the subsequent judgment on the possibility of burning out of the power board more accurate and reliable.
此外，通过在电源板中设置多个温度传感器，还可以根据监测到的电源板的多处温度来综合判断电源板存在过流烧毁的风险。例如，可以根据监测到的多个温度值的加权平均值来确定电源板烧毁的可能性大小，其中，各位置温度值的权重大小可以根据例如各位置附近铜箔面积大小来设置，比如，其附近预定范围内(如预定1cm2内)的铜箔面积越大，对应的权重越高。由此，通过在电源板的多个位置对应设置多个温度传感器时，可以获得更大范围的电源板温度，进而使得后续对电源板烧毁的可能性的判断更加准确、可靠。另外，本发明的上述电源板适用任一种类型的电路板，也就是说，被保护的电路板不需要增加新的电源方案。In addition, by arranging multiple temperature sensors in the power board, it is also possible to comprehensively judge the risk of overcurrent burning of the power board based on the monitored temperatures of multiple places on the power board. For example, the possibility of burning the power board can be determined according to the weighted average of multiple monitored temperature values, wherein the weight of each position temperature value can be set according to the size of the copper foil area near each position, for example, its The larger the area of copper foil within a predetermined range (such as within a predetermined 1 cm 2 ), the higher the corresponding weight. Thus, when a plurality of temperature sensors are correspondingly arranged at multiple positions of the power board, a wider range of power board temperatures can be obtained, thereby making subsequent judgments on the possibility of power board burnout more accurate and reliable. In addition, the above-mentioned power supply board of the present invention is applicable to any type of circuit board, that is to say, the protected circuit board does not need to add a new power supply scheme.
此外，本发明还提供了一种服务器电路板系统。如图2的系统拓扑图及图3的系统框架示意图所示，服务器电路板系统至少包括电源板201(即电源输入端)和控制单元202。电源板201内设置有温度传感器203，温度传感器203用于实时监测电源板201的温度值；控制单元202用于在电源板201的温度值高于或等于预定阈值的情况下，切断外部电源对电源板201的电压输入。其中，上述预设阈值可以根据经验值来设定，也可以通过试验的方式来确定，这里不再详述。In addition, the invention also provides a server circuit board system. As shown in the system topology diagram in FIG. 2 and the system frame diagram in FIG. 3 , the server circuit board system includes at least a power board 201 (ie, a power input terminal) and a control unit 202 . The power board 201 is provided with a temperature sensor 203, and the temperature sensor 203 is used to monitor the temperature value of the power board 201 in real time; the control unit 202 is used to cut off the external power supply pair when the temperature value of the power board 201 is higher than or equal to a predetermined threshold. The voltage input of the power board 201. Wherein, the above-mentioned preset threshold may be set according to empirical values, or may be determined through experiments, which will not be described in detail here.
相比于现有技术，本发明的上述服务器电路板系统通过在前端板卡即电源板201内设置温度传感器203，以实时地监测电源板201的工作温度，通过温度传感器203把温度值转换为电信号发到控制单元202(例如CPU板)的BMC，当该温度超过预设阈值时，通过切断外部电压的输入来实现对电路板的过流保护措施。由此，应用本发明实施例的上述服务器电路板系统，能够避免工作过程时候由于各种不良情况而造成的电路板损坏，并且能够便于电路板的故障排除和维修，从而降低研发成本。Compared with the prior art, the above-mentioned server circuit board system of the present invention is provided with the temperature sensor 203 in the front-end board, that is, the power board 201, to monitor the working temperature of the power board 201 in real time, and the temperature value is converted to The electrical signal is sent to the BMC of the control unit 202 (such as the CPU board), and when the temperature exceeds the preset threshold, the overcurrent protection measure for the circuit board is implemented by cutting off the input of the external voltage. Therefore, applying the above-mentioned server circuit board system according to the embodiment of the present invention can avoid damage to the circuit board caused by various adverse conditions during the working process, and can facilitate troubleshooting and maintenance of the circuit board, thereby reducing research and development costs.
此外，本发明的上述服务器电路板系统是根据电流产生热量而导致温度上升的原理、利用对温度的敏感性来实现过流保护功能的，与传统的过流保护电路设计不同。In addition, the above-mentioned server circuit board system of the present invention implements the overcurrent protection function based on the principle that current generates heat to cause temperature rise, and utilizes the sensitivity to temperature to realize the overcurrent protection function, which is different from the traditional overcurrent protection circuit design.
进一步地，内置的温度传感器203的数量可以为一个或多个。当在电源板201中设置多个温度传感器203时，可以在更大范围内监测电源板201上各处的温度，使得后续对服务器电路板烧毁的可能性的判断更加准确、可靠；此外，还可以根据监测到的电源板201上各处的温度来综合判断电源板201存在过流烧毁的风险。Further, the number of built-in temperature sensors 203 may be one or more. When a plurality of temperature sensors 203 are arranged in the power board 201, the temperature of various places on the power board 201 can be monitored in a wider range, so that the subsequent judgment on the possibility of burning the server circuit board is more accurate and reliable; in addition, It can be comprehensively judged that the power board 201 has a risk of overcurrent burning according to the monitored temperatures of various places on the power board 201 .
进一步地，可以在电源板201中的预定区域内设置上述一个或多个温度传感器203，其中，预定区域对应的铜箔面积大于或等于预设值。这样，上述服务器电路板系统工作时，温度传感器203由于设置在电源板201中铜箔面积较大的位置而更加准确、直接地感应到了PCB内部铜箔的温度，比外部的传感器更加真实准确，从而能够利用其采取的温度转换成可输出的电信号，发送给主板端的BMC，以此来控制电路板前端的电路。Further, the above one or more temperature sensors 203 may be arranged in a predetermined area of the power board 201, wherein the copper foil area corresponding to the predetermined area is greater than or equal to a preset value. In this way, when the above-mentioned server circuit board system is working, the temperature sensor 203 can more accurately and directly sense the temperature of the copper foil inside the PCB because it is arranged at a position with a larger copper foil area in the power supply board 201, which is more real and accurate than the external sensor. Therefore, the temperature taken by it can be converted into an outputable electrical signal and sent to the BMC on the main board side to control the circuit at the front end of the circuit board.
需要说明的是，图2中仅示出了与本发明的发明点紧要相关的组成部分，在实际应用中，服务器电路板系统所包括的组成部分并不限于图2所示组件，还可以包括其他必要组件，这里不再一一赘述。此外，电源板201可以具有上文中结合图1所描述的电源板的结构，并能够达到相类似的功能和技术效果，这里不再重述。It should be noted that Fig. 2 only shows components that are critically related to the invention of the present invention. In practical applications, the components included in the server circuit board system are not limited to those shown in Fig. 2, and may also include Other necessary components will not be repeated here. In addition, the power board 201 can have the structure of the power board described above in conjunction with FIG. 1 , and can achieve similar functions and technical effects, which will not be repeated here.
优选实施例preferred embodiment
根据本发明一个实施例的服务器电路板系统，包括电源板和CPU板(作为控制单元202的示例)等组件。其中，CPU板包括处理器、内存、BMC等重要的电子元器件，而电源板通过PSU连接到外部的220V电源。A server circuit board system according to an embodiment of the present invention includes components such as a power board and a CPU board (as an example of the control unit 202 ). Among them, the CPU board includes important electronic components such as processor, memory, and BMC, and the power board is connected to an external 220V power supply through the PSU.
需要说明的是，在电源板的PCB布线中，铜箔的通流量需要符合电流大小要求。其中，多个温度传感器设置在此电源板的大面积铜箔的位置。It should be noted that, in the PCB wiring of the power board, the flow rate of the copper foil needs to meet the current size requirements. Among them, a plurality of temperature sensors are set at the position of the large-area copper foil of the power board.
参考图2，外部的220V电源通过PSU转化为12V电压进入电源板，再到CPU板和其他的功能板卡。多个温度传感器实时地读取电源板当前各处的温度值，从而间接侦测当前的电流大小，并将其读取到的温度值以电信号的形式发送给BMC。假设某时刻，多个温度传感器之一所读取的温度值为65℃，超出了预定阈值60℃，说明此时该温度传感器所在电源板上的位置由于不确定因素出现了短路，则BMC在接收到该温度值并将其与预定阈值进行比较之后，确定该温度值已超过阈值，于是向PSU发送断电控制信号，PSU根据该断电控制信号切断外部220V电源继续对电源板的电压输入。Referring to Figure 2, the external 220V power supply is converted into 12V voltage by the PSU and enters the power board, and then to the CPU board and other functional boards. Multiple temperature sensors read the current temperature values of the power board in real time, thereby indirectly detecting the current current magnitude, and send the read temperature values to the BMC in the form of electrical signals. Assume that at a certain moment, the temperature value read by one of the multiple temperature sensors is 65°C, which exceeds the predetermined threshold of 60°C, indicating that the position on the power board where the temperature sensor is located is short-circuited due to uncertain factors, and the BMC is on After receiving the temperature value and comparing it with the predetermined threshold value, it is determined that the temperature value has exceeded the threshold value, and then sends a power-off control signal to the PSU, and the PSU cuts off the external 220V power supply according to the power-off control signal and continues to input voltage to the power board .
在现有技术中，如果出现上述不确定因素所引起的短路，在不为人知的情况下，当对服务器进行上电工作时，会在电路板的短路位置出现过流，电流瞬间增大，伴随温度的骤升，从而引起电路板烧毁。In the existing technology, if there is a short circuit caused by the above uncertain factors, under unknown circumstances, when the server is powered on, an overcurrent will occur at the short circuit position of the circuit board, and the current will increase instantaneously. Accompanied by a sudden rise in temperature, the circuit board is burned.
相比于现有技术，当出现上述不确定因素所引起的短路时，本发明的上述技术能够及时终止外部电压的输入，防止对电源板及整个电路板的继续损坏，能够把温度控制在一定范围内而不超过预定阈值，从而避免电路板烧毁。Compared with the prior art, when a short circuit caused by the above-mentioned uncertain factors occurs, the above-mentioned technology of the present invention can terminate the input of the external voltage in time, prevent further damage to the power supply board and the entire circuit board, and can control the temperature at a certain level. Within the range without exceeding the predetermined threshold, thereby avoiding circuit board burnout.
虽然本发明所揭露的实施方式如上，但所述的内容仅为便于理解本发明而采用的实施方式，并非用以限定本发明。任何本发明所属领域内的技术人员，在不脱离本发明所揭露的精神和范围的前提下，可以在实施的形式及细节上进行任何的修改与变化，但本发明的专利保护范围，仍须以所附的权利要求书所界定的范围为准。Although the embodiments disclosed in the present invention are as above, the described content is only an embodiment adopted for understanding the present invention, and is not intended to limit the present invention. Anyone skilled in the field of the present invention can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed by the present invention, but the patent protection scope of the present invention must still be The scope defined by the appended claims shall prevail.
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