Circulating heat dissipation system for distribution box

Abstract

The invention relates to the technical field of circulating heat dissipation, in particular to a circulating heat dissipation system for a distribution box, and the system comprises a simulation unit which is used for constructing a thermal field; the acquisition unit is used for acquiring data; a processing unit to process the data; the analysis unit is used for analyzing whether the heat dissipation system meets the standard or not, determining a reason for the condition that the heat dissipation system does not meet the standard, and generating a corresponding instruction according to the reason; the adjusting unit is used for adjusting corresponding parameters according to the instruction, and the parameters comprise operation parameters and judgment parameters of the device; comprising a first heat dissipation device, a circulating heat dissipation device and a second heat dissipation device. The heat dissipation efficiency of the distribution box is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circulating heat dissipation, in particular to a circulating heat dissipation system for a distribution box. BACKGROUND

[0002] The circulating heat dissipation system for a distribution box is increasingly key to the application in the scenes of power equipment temperature control management, heat disaster prevention, and energy efficiency improvement, etc. Among them, the traditional heat dissipation method usually has significant problems such as low heat dissipation efficiency, lack of temperature perception, extensive energy consumption control, and slow overheat response, which seriously restricts the safety and stability of the power distribution system. Especially in high-temperature and high-load environments, the speed lag of the heat dissipation fan, the unreasonable air flow organization, and the insufficient synergy of heterogeneous cooling components easily lead to local overheating and even equipment failure. At the same time, the low accuracy of multi-source temperature signal recognition further reduces the temperature control response speed and heat dissipation precision. Therefore, how to develop a circulating heat dissipation system for a distribution box to improve the dynamic adaptability and control accuracy of the heat dissipation process is a technical problem that needs to be solved by the technical personnel in the field.

[0003] Chinese patent number CN115377850B discloses a passive type distribution box heat dissipation system and use method, the system includes: a heat dissipation mechanism, a folding sealing mechanism, a heat dissipation mechanism, and a locking mechanism. After the exhaust fan is moved down, the user manually moves the exhaust fan up, the rotating pipe drives the clamping block to slide on the surface of the anti-skid block, so that when the exhaust fan moves up, the rotating pipe rotates in the vertical groove to reduce the resistance of the exhaust fan moving in the vertical groove. Then the user presses the push plate, which drives the left movement of the push plate to reset and drives the deflection of the folding plate, which is in contact with the inner wall of the exhaust slot, facilitating the user to fix the frame and the exhaust fan at the specified position of the exhaust slot. As can be seen, the above technical solution has the following problems: it does not consider the safety risks in the process of manual intervention and the poor opening degree adjustment accuracy, which leads to unsatisfactory heat dissipation effect of the distribution box, thereby reducing the applicability of the circulating heat dissipation system. SUMMARY

[0004] Therefore, the present application provides a circulating heat dissipation system for a distribution box to overcome the problem that the prior art does not consider the safety risks in the process of manual intervention and the poor opening degree adjustment accuracy, which leads to unsatisfactory heat dissipation effect of the distribution box, thereby reducing the applicability of the circulating heat dissipation system.

[0005] To achieve the above-mentioned purpose, the present application provides a circulating heat dissipation system for a distribution box, comprising: a simulation unit for constructing a thermal field; a collection unit connected to the simulation unit for collecting data; a processing unit connected to the collection unit for processing data; An analysis unit, connected to the processing unit, is used to analyze whether the heat dissipation system meets the standard, determine the cause of non-compliance, and generate corresponding instructions based on the cause. An adjustment unit, which is connected to the analysis unit, adjusts the corresponding parameters according to instructions. The parameters include the device's operating parameters and judgment parameters. The heat dissipation device, which is connected to the regulating unit, includes a first heat dissipation device, a circulating heat dissipation device, and a second heat dissipation device. The first heat dissipation device includes several cooling fans, which are installed at corresponding positions on the side wall of the distribution box. The circulating heat dissipation device includes a storage tank for storing heat exchange medium and several heat exchange joints installed on corresponding core components. Each heat exchange joint is connected to the storage tank through a pipeline, and each pipeline is equipped with a water pump. The second heat dissipation device is installed on the side wall of the storage tank and is used to dissipate heat from the heat exchange medium.

[0006] Furthermore, the simulation unit is also used to determine whether the heat dissipation system meets the standard based on the comparison result between the temperature characterization value of the marked point in the thermal field and the preset temperature characterization value, and, if the heat dissipation system does not meet the standard, to determine the reason for not meeting the standard based on the tangential temperature gradient. The marked points include several preferred collection points and several alternative collection points.

[0007] Furthermore, the processing unit is also used to determine, based on the comparison result between the target curve integral value and the preset curve integral value, the reason for non-compliance with the standard is poor gas flow in the distribution box and to improve the heat dissipation method in the box, or to determine the reason for non-compliance with the standard based on the curve integral variance.

[0008] Furthermore, the analysis unit is also used to determine, based on the comparison results of the curve integral variance and the preset curve integral variance, the reason for non-compliance with the standard is poor heat dissipation of a single core component and to improve the circulating heat dissipation method, or poor gas flow in the distribution box and to improve the heat dissipation method inside the box.

[0009] Furthermore, the regulating unit is also used to reduce the regulating flow rate based on the temperature characterization difference, wherein the reduction in flow rate is positively correlated with the temperature characterization difference.

[0010] Furthermore, the adjustment unit is also used to adjust the rotation speed of the second heat dissipation device based on the temperature rise rate of the storage tank, and the change range of the rotation speed of the second heat dissipation device is positively correlated with the temperature rise rate of the storage tank.

[0011] Furthermore, the adjustment unit is also used to re-detect the temperature characterization value of the marked point in the thermal field in response to the first preset condition, and repeatedly adjust the rotation speed of the second heat dissipation device for cases that do not meet the standard. If the number of adjustment reaches the adjustment threshold and the heat dissipation system still does not meet the standard, the reason is determined to be poor gas flow in the distribution box and the heat dissipation in the distribution box is optimized. The first preset condition is that the adjustment of the second heat dissipation device is completed.

[0012] Furthermore, the adjustment unit is also used to adjust the duty cycle of the cooling fan based on the increase of the temperature characterization difference under the second preset condition; The temperature characterization difference is the absolute value of the difference between the temperature characterization value and the preset temperature characterization value; The increase in duty cycle is positively correlated with the temperature characterization difference; The second preset condition is that the second heat dissipation device has been adjusted and the circulating heat dissipation system does not meet the standard.

[0013] Furthermore, the adjustment unit is also used to determine the heat movement vector based on the adjusted thermal field in response to the third preset condition, determine the correction direction based on the comparison result of the heat movement vector and the preset vector, and the adjustment unit is also used to determine the correction range of the duty cycle of the first heat dissipation device based on the absolute value of the deviation between the heat movement vector and the preset vector. The correction range of the duty cycle of the first heat dissipation device is positively correlated with the absolute value of the deviation. The third preset condition is that the duty cycle adjustment of the first heat dissipation device is completed.

[0014] Furthermore, the adjustment unit is also used to adjust the duty cycle of the cooling fan based on the ambient temperature of the distribution box, wherein the ambient temperature and the duty cycle of the cooling fan are positively correlated.

[0015] Compared with the prior art, the beneficial effects of the present invention are that the present invention uses an analysis unit to determine whether the heat dissipation system meets the standard based on the temperature characterization value. It can complete the determination of whether the heat dissipation system meets the user's needs in a timely and efficient manner, effectively realize the real-time monitoring of the heat dissipation system, and determine the cause of non-compliance based on the tangential temperature gradient for non-compliance cases. Based on the cause, corresponding instructions are generated, which further realizes the rapid elimination of the cause of non-compliance of the heat dissipation system while further improving the circulation heat dissipation efficiency of the distribution box.

[0016] Furthermore, this invention determines whether a heat dissipation system meets the standard by comparing the temperature characterization value of a marked point in the thermal field with a preset temperature characterization value. In the case where the heat dissipation system does not meet the standard, the cause of non-compliance is determined based on the tangential temperature gradient. This allows for rapid determination of whether a heat dissipation system meets the standard, thereby improving the efficiency of determining whether a heat dissipation system meets the standard. In turn, when a heat dissipation system does not meet the standard, rapid cause analysis is performed, which improves the accuracy and efficiency of determining the cause of non-compliance.

[0017] Furthermore, this invention determines the reasons for non-compliance with standards by comparing the integral value of the target curve with the integral value of the preset curve. This allows for a more accurate analysis of the reasons for non-compliance with standards based on the integral value of the target curve, thereby improving the accuracy of determining the reasons for non-compliance and ultimately improving the heat dissipation efficiency of the heat dissipation system.

[0018] Furthermore, this invention determines the cause of non-compliance by comparing the curve integral variance with the preset curve integral variance. It can more accurately analyze whether there is a problem of poor heat dissipation of a single core component in the distribution box based on the curve integral variance, thereby improving the accuracy of determining the cause of non-compliance and thus improving the heat dissipation efficiency of the heat dissipation system.

[0019] Furthermore, by adjusting the flow rate based on the temperature characterization difference, this invention avoids the flow rate of the cooling medium affecting the heat dissipation efficiency of the heat dissipation system, thereby improving the accuracy of determining the cause of non-compliance with standards and thus improving the heat dissipation efficiency of the heat dissipation system.

[0020] Furthermore, by adjusting the rotation speed of the second heat dissipation device based on the tank temperature rise rate, this invention avoids the influence of the tank volume on the cooling medium temperature regulation capability, thus preventing the problem of unreasonable adjustment of the rotation speed of the second heat dissipation device in actual scenarios. This improves the accuracy of determining the cause of non-compliance with standards and thereby improves the heat dissipation efficiency of the heat dissipation system.

[0021] Furthermore, by repeatedly adjusting the rotation speed of the second heat dissipation device, if the number of adjustments reaches the adjustment threshold and the heat dissipation system still does not meet the standard, the present invention determines that the cause is poor gas flow in the distribution box and optimizes the heat dissipation in the distribution box. This further ensures real-time monitoring of the heat dissipation system, avoids the problem of ineffective adjustment, and improves the accuracy of determining the cause of non-compliance with the standard, thereby improving the heat dissipation efficiency of the heat dissipation system.

[0022] Furthermore, by adjusting the duty cycle of the first heat dissipation device based on the temperature characterization difference, the present invention avoids the problem of unreasonable adjustment range and frequency settings of the first heat dissipation device in actual scenarios, effectively improves the rationality of the adjustment of the first heat dissipation device, and thus improves the heat dissipation efficiency of the heat dissipation system.

[0023] Furthermore, the present invention corrects the duty cycle of the first heat dissipation device by adjusting the deviation between the adjusted heat movement vector and the preset vector, thereby ensuring the adjustment accuracy of the duty cycle of the first heat dissipation device, improving the accuracy of determining the cause of non-compliance with standards, and thus improving the heat dissipation efficiency of the heat dissipation system.

[0024] Furthermore, the present invention corrects the duty cycle of the first heat dissipation device based on the ambient temperature of the distribution box, taking into account the influence of ambient temperature to make the duty cycle of the first heat dissipation device more reasonable, further ensuring the adjustment accuracy of the duty cycle of the first heat dissipation device, thereby improving the accuracy of determining the cause of non-compliance with standards, and thus improving the heat dissipation efficiency of the heat dissipation system. Attached Figure Description

[0025] Figure 1 This is a unit connection diagram of the circulating heat dissipation system for a distribution box according to the present invention; Figure 2 This is a flowchart illustrating the steps of the circulating heat dissipation method for a distribution box according to the present invention. Figure 3 This is a flowchart illustrating the present invention for determining whether a heat dissipation system meets a standard based on a comparison between a temperature characterization value and a preset temperature characterization value. Figure 4 This is a flowchart illustrating the process of determining the reasons for non-compliance with standards based on the comparison results between the curve integral variance and the preset curve integral variance. Detailed Implementation

[0026] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0027] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0028] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0029] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] Please see Figure 1The diagram shown is a unit connection diagram of a circulating heat dissipation system for a distribution box according to an embodiment of the present invention. The system of this embodiment includes an analog unit, a data acquisition unit, a processing unit, an analysis unit, an adjustment unit, and a heat dissipation device connected to the adjustment unit, wherein: The simulation unit is used to construct the thermal field; The acquisition unit is connected to the simulation unit and is used to acquire data; The processing unit is connected to the acquisition unit and is used to process data; The analysis unit, which is connected to the processing unit, is used to analyze whether the heat dissipation system meets the standard, determine the cause of non-compliance, and generate corresponding instructions based on the cause. The adjustment unit is connected to the analysis unit and adjusts the corresponding parameters according to the instructions. The parameters include the device's operating parameters and judgment parameters. The heat dissipation device, which is connected to the adjustment unit, includes a first heat dissipation device, a circulating heat dissipation device, and a second heat dissipation device. The first heat dissipation device includes several cooling fans, which are installed at corresponding positions on the side wall of the distribution box. The circulating heat dissipation device includes a storage tank for storing heat exchange medium and several heat exchange joints installed on corresponding core components. Each heat exchange joint is connected to the storage tank through a pipeline, and each pipeline is equipped with a water pump. The second heat dissipation device is installed on the side wall of the storage tank and is used to dissipate heat from the heat exchange medium.

[0031] Please see Figure 2 The diagram shows a flowchart of the circulating heat dissipation method for a distribution box according to an embodiment of the present invention. During operation, the circulating heat dissipation system for a distribution box according to this embodiment of the present invention comprises: a simulation unit for constructing a thermal field; a data acquisition unit for acquiring data; a processing unit for processing data; an analysis unit for analyzing whether the heat dissipation system meets standards, determining the cause of non-compliance, and generating corresponding instructions based on the cause; an adjustment unit for adjusting corresponding parameters according to the instructions, including operating parameters and judgment parameters of the device; a heat dissipation device comprising a first heat dissipation device, a circulating heat dissipation device, and a second heat dissipation device, wherein the first heat dissipation device includes several cooling fans disposed at corresponding positions on the side wall of the distribution box; the circulating heat dissipation device includes a storage tank for storing heat exchange medium and several heat exchange joints disposed on corresponding core components, each heat exchange joint being connected to the storage tank via a pipeline, and each pipeline being equipped with a water pump; and a second heat dissipation device disposed on the side wall of the storage tank for dissipating heat from the heat exchange medium.

[0032] Specifically, the simulation unit described in this embodiment of the invention is also used to determine whether the heat dissipation system meets the standard based on the comparison result between the temperature characterization value of the marked point in the thermal field and the preset temperature characterization value, and, if the heat dissipation system does not meet the standard, to determine the reason for not meeting the standard based on the tangential temperature gradient. The marked points include several preferred collection points and several alternative collection points.

[0033] Specifically, in this embodiment, the marked point is the location of the core component of the distribution box. It can be understood that abnormal temperature at the location of the core component will cause the distribution box to malfunction or be damaged. In this embodiment of the invention, the preset temperature characterization value T0 = 25℃. The comparison result between the temperature characterization value T and the preset temperature characterization value T0 is as follows: If the temperature reading is greater than the preset temperature reading T0, the heat dissipation system is determined to be non-compliant with the standard, and the reason for non-compliance is determined based on the tangential temperature gradient. If the temperature reading is less than or equal to the preset temperature reading T0, the heat dissipation system is deemed to meet the standard. The temperature characterization value = α1 × average preferred temperature + α2 × average alternative temperature; where α1 is the first weighting coefficient, α2 is the second weighting coefficient, and α1 + α2 = 1. The values ​​of α1 and α2 can be adaptively set by the user according to actual application needs. It can be understood that if the average preferred temperature has a greater influence on the temperature characterization value, then the value of α1 is larger and the value of α2 is smaller. In this embodiment of the invention, α1 = 0.6 and α2 = 0.4 are provided.

[0034] The average preferred temperature is the average of the temperatures at several preferred sampling points at the current detection time, and the average alternative temperature is the average of the temperatures at several alternative sampling points at the current detection time. The number of preferred and alternative sampling points can be adaptively set by the user according to the actual application scenario. It is understood that the higher the accuracy requirement of the temperature characterization value, the more preferred sampling points and alternative sampling points there are. In this invention, preferred sampling point N1=5 and alternative sampling point N2=7.

[0035] The preset temperature characterization value, weighting coefficient, and number of sampling points are not limited to these values, and those skilled in the art can adjust these values ​​according to actual needs.

[0036] Specifically, the processing unit described in this embodiment of the invention is also used to determine, based on the comparison result between the target curve integral value and the preset curve integral value, that the reason for non-compliance with the standard is poor gas flow in the distribution box and to improve the heat dissipation method in the box, or to determine the reason for non-compliance with the standard based on the curve integral variance.

[0037] Specifically, in this embodiment, the preset curve integral value C0 = 30, and the comparison result between the target curve integral value and the preset curve integral value is as follows: If the integral value of the target curve is greater than the integral value of the preset curve C0, it is determined that the heat dissipation system does not meet the standard because the gas flow inside the distribution box is poor and the heat dissipation method inside the box should be improved. If the target curve integral value is less than or equal to the preset curve integral value C0, the reason why the heat dissipation system does not meet the standard is determined based on the curve integral variance. The method for confirming the integral value of the target curve is as follows: the thermal field is divided along the preferred sampling point in the horizontal direction. For the dividing line of a single preferred sampling point, the dividing line is used as the horizontal axis, and the temperature of the corresponding point on the line is recorded as the vertical axis. A temperature distribution curve is constructed, the integral of the temperature distribution curve is calculated, and the average value of the integrals of the temperature distribution curves corresponding to all preferred sampling points is recorded as the integral value of the target curve. The value of the preset curve integral is not limited to this, and those skilled in the art can adjust the value according to actual needs.

[0038] Specifically, the analysis unit described in this embodiment of the invention is also used to determine, based on the comparison results of the curve integral variance and the preset curve integral variance, the reason for non-compliance with the standard is poor heat dissipation of a single core component and to improve the circulating heat dissipation method, or poor gas flow in the distribution box and to improve the heat dissipation method inside the box.

[0039] Specifically, in this embodiment, the preset curve integral variance F0 = 12.48, and the comparison result between the curve integral variance and the preset curve integral variance is as follows: If the curve integral variance is greater than the preset curve integral variance F0, the reason for non-compliance is determined to be poor heat dissipation of a single core component, and the circulating heat dissipation method should be improved. If the variance of the curve integral is less than or equal to the preset variance of the curve integral F0, the reason for not meeting the standard is that the gas flow in the distribution box is poor and the heat dissipation method in the box should be improved. The value of the preset curve integral variance is not limited to this, and those skilled in the art can adjust the value according to actual needs.

[0040] Specifically, the regulating unit described in this embodiment of the invention is also used to reduce the regulating flow rate based on the temperature characterization difference, wherein the reduction in flow rate is positively correlated with the temperature characterization difference.

[0041] Specifically, in this embodiment, the temperature characterization difference = temperature characterization value - preset temperature characterization value; If the temperature characterization difference is greater than the second preset temperature characterization difference △E2 set in the analysis unit, the adjustment unit reduces the flow rate to 0.9 of the initial flow rate, wherein, in this embodiment, the second preset temperature characterization difference △E2 = 30; If the temperature characterization difference is less than or equal to the second preset temperature characterization difference △E2 and greater than the first preset temperature characterization difference △E1 set in the analysis unit, the adjustment unit reduces the flow rate to 0.75 times the initial flow rate, wherein, in this embodiment, the first preset temperature characterization difference △E1 = 10; If the temperature characterization difference is less than or equal to the first preset temperature characterization difference ΔE1 set in the analysis unit, the adjustment unit will reduce the flow rate to 0.64 of the initial flow rate. The values ​​of the second preset temperature characterization difference, the first preset temperature characterization difference, and the rate of decrease in flow rate are not limited to these. Those skilled in the art can adjust these values ​​according to actual needs.

[0042] Specifically, the adjustment unit described in this embodiment of the invention is also used to adjust the rotation speed of the second heat dissipation device based on the temperature rise rate of the storage tank, and the change range of the rotation speed of the second heat dissipation device is positively correlated with the temperature rise rate of the storage tank.

[0043] Specifically, in this embodiment, if the temperature rise rate of the storage tank is greater than the second preset temperature rise rate ΔQ2 set in the analysis unit, the adjustment unit increases the rotation speed of the second heat dissipation device to 2.21 times the initial rotation speed, wherein, in this embodiment, the second preset temperature rise rate ΔQ2 = 4℃ / min; If the temperature rise rate of the storage tank is less than or equal to the second preset temperature rise rate ΔQ2 set in the analysis unit and greater than the first preset temperature rise rate ΔQ1 set in the analysis unit, the adjustment unit increases the rotation speed of the second heat dissipation device to 1.68 times the initial rotation speed. In this embodiment, the first preset temperature rise rate ΔQ1 = 1℃ / min. If the temperature rise rate of the storage tank is less than or equal to the first preset temperature rise rate △Q1 set in the analysis unit, the adjustment unit will not increase the rotation speed of the second heat dissipation device. The values ​​of the second preset tank temperature rise rate, the first preset tank temperature rise rate, and the increase in rotation speed are not limited to these. Those skilled in the art can adjust these values ​​according to actual needs.

[0044] Specifically, the process of determining whether to repeatedly adjust the rotation speed of the second heat dissipation device in response to a first preset condition, as described in the embodiments of the present invention, includes: The temperature characterization value of the marked point in the thermal field is re-detected. If the temperature characterization value is greater than the preset temperature characterization value, the heat dissipation system is determined to be non-compliant with the standard and the speed of the second heat dissipation device is repeatedly adjusted. After each adjustment is completed, it is determined whether the critical adjustment state is met. For the speed of the second heat dissipation device in the critical adjustment state, the reason for non-compliance with the standard is that the gas flow in the distribution box is poor and the heat dissipation in the distribution box is optimized. The critical state of adjustment is when the number of repeated adjustments reaches the adjustment threshold. The first preset condition is that the adjustment of the second heat dissipation device is completed.

[0045] Specifically, in this embodiment, adjusting the threshold R0=4 and determining whether to repeatedly adjust the rotation speed of the second heat dissipation device based on the temperature characterization value includes: Recheck the temperature characterization value after adjustment and compare it with the preset temperature characterization value T0; If the temperature reading is greater than the preset temperature reading T0, the rotation speed of the second heat dissipation device will continue to be adjusted repeatedly. If the temperature reading is less than or equal to the preset temperature reading T0, the heat dissipation system is deemed to meet the standard. The process of determining whether the critical adjustment state is met after adjustment is completed is as follows: If the number of adjustments R is greater than or equal to the adjustment threshold R0 and the adjusted temperature characterization value is greater than the preset temperature characterization value, then the reason for not meeting the standard is poor gas flow in the distribution box, and the heat dissipation in the distribution box should be optimized. The value of the adjustment threshold is not limited to this, and those skilled in the art can adjust the value according to actual needs.

[0046] Specifically, the adjustment unit described in this embodiment of the invention is also used to adjust the duty cycle of the first heat dissipation device based on the increase of the temperature characterization difference under the second preset condition; The increase in duty cycle is positively correlated with the temperature characterization difference; The second preset condition is that the second heat dissipation device has been adjusted and the circulating heat dissipation system does not meet the standard.

[0047] Specifically, in this embodiment, the duty cycle of the first heat dissipation device is determined as follows: duty cycle = duration of high level / duration of a single monitoring cycle; If the temperature characterization difference is greater than the second preset temperature characterization difference ΔE2 set in the analysis unit, the adjustment unit increases the duty cycle of the first heat dissipation device to 1.32 times the initial duty cycle; If the temperature characterization difference is less than or equal to the second preset temperature characterization difference ΔE2 set in the analysis unit and greater than the first preset temperature characterization difference ΔE1 set in the analysis unit, the adjustment unit increases the duty cycle of the first heat dissipation device to 1.15 times the initial duty cycle; If the temperature characterization difference is less than or equal to the first preset temperature characterization difference △E1 set in the analysis unit, the adjustment unit will not increase the duty cycle of the first heat dissipation device.

[0048] Specifically, the adjustment unit described in this embodiment of the invention is further used to respond to a third preset condition, determine a heat movement vector based on the adjusted heat field, determine a correction direction based on the comparison result of the heat movement vector and the preset vector, and the adjustment unit is further used to determine the correction magnitude of the duty cycle of the first heat dissipation device based on the absolute value of the deviation between the heat movement vector and the preset vector. The correction range of the duty cycle of the first heat dissipation device is positively correlated with the absolute value of the deviation. The third preset condition is that the duty cycle adjustment of the first heat dissipation device is completed.

[0049] Specifically, in this embodiment, an infrared thermal imager arranged inside the distribution box acquires a continuous sequence of thermal images within a period, extracts several pixels, and obtains a heat movement vector based on the Farneback method. The Farneback method is a concept easily understood by those skilled in the art and will not be elaborated here.

[0050] The absolute value of the deviation is equal to |heat movement vector - preset vector|. The value of the preset vector W0 can be adaptively set by the user according to the actual application scenario. It can be understood that the higher the user's requirement for the heat movement rate, the larger the value of the preset vector. This invention provides a method for determining the value of the preset vector by extracting the heat movement vector in the historical records that meet the user's needs, removing outliers, and recording the average value of the heat movement vector after removing outliers as the preset vector. The method for removing outliers can be, but is not limited to, the 3σ criterion method or the IQR method. This invention provides a value for the preset vector, in which the preset vector W0 = 1.8.

[0051] If the deviation value is greater than the second preset deviation value △W2 set in the analysis unit, the adjustment unit will adjust the duty cycle of the first heat dissipation device by 0.15 times the adjusted duty cycle, wherein, in this embodiment, the second preset deviation difference △W2 = 0.56; If the deviation value is less than or equal to the second preset deviation value △W1 set by the analysis unit and greater than the first preset deviation value △W1, then the adjustment unit corrects the duty cycle of the first heat dissipation device by 0.09 times the adjustment duty cycle, wherein, in this embodiment, the first preset deviation value △W1 = 0.22; If the deviation value is less than or equal to the first preset deviation value △W1, the adjustment unit will adjust the duty cycle of the first heat dissipation device by 0.02 times the adjustment duty cycle. The duty cycle of the first heat dissipation device is adjusted and then recorded as the adjusted duty cycle of the first heat dissipation device. If the heat movement vector is greater than the preset vector, the duty cycle is decreased; if the heat movement vector is less than or equal to the preset vector, the duty cycle is increased.

[0052] Specifically, the adjustment unit described in this embodiment of the invention is also used to correct the duty cycle of the first heat dissipation device based on the ambient temperature of the distribution box, wherein the ambient temperature and the duty cycle of the first heat dissipation device are positively correlated.

[0053] Specifically, in this embodiment, the ambient temperature is determined by selecting several detection points in the computer room where the distribution box is located, obtaining the temperature at each detection point, and recording the average temperature of all detection points as the ambient temperature. If the ambient temperature is greater than the second ambient temperature ΔY2 set in the analysis unit, the adjustment unit increases the duty cycle of the first heat dissipation device to 1.625 times the initial duty cycle, wherein, in this embodiment, the second preset ambient temperature ΔY2 = 50℃; If the ambient temperature is less than or equal to the second preset ambient temperature ΔY2 set in the analysis unit and greater than the first preset ambient temperature ΔY1 set in the analysis unit, the adjustment unit increases the duty cycle of the first heat dissipation device to 1.154 times the initial duty cycle, wherein, in this embodiment, the first preset ambient temperature ΔY1 = 32℃; If the ambient temperature is less than or equal to the first preset ambient temperature ΔY1 set in the analysis unit, the adjustment unit will not increase the rotation speed of the first heat dissipation device.

[0054] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A circulating heat dissipation system for a distribution box, characterized in that, include: Simulation unit, used to construct thermal field; A data acquisition unit, which is connected to the simulation unit, is used to acquire data; A processing unit, which is connected to the acquisition unit, is used to process data; An analysis unit, connected to the processing unit, is used to analyze whether the heat dissipation system meets the standard, determine the cause of non-compliance, and generate corresponding instructions based on the cause. An adjustment unit, which is connected to the analysis unit, adjusts the corresponding parameters according to instructions. The parameters include the device's operating parameters and judgment parameters. The heat dissipation device, which is connected to the regulating unit, includes a first heat dissipation device, a circulating heat dissipation device, and a second heat dissipation device. The first heat dissipation device includes several cooling fans, which are installed at corresponding positions on the side wall of the distribution box. The circulating heat dissipation device includes a storage tank for storing heat exchange medium and several heat exchange joints installed on corresponding core components. Each heat exchange joint is connected to the storage tank through a pipeline, and each pipeline is equipped with a water pump. The second heat dissipation device is installed on the side wall of the storage tank and is used to dissipate heat from the heat exchange medium.

2. The circulating heat dissipation system for a distribution box according to claim 1, characterized in that, The simulation unit is also used to determine whether the heat dissipation system meets the standard based on the comparison result between the temperature characterization value of the marked point in the thermal field and the preset temperature characterization value, and, if the heat dissipation system does not meet the standard, to determine the reason for not meeting the standard based on the tangential temperature gradient. The marked points include several preferred collection points and several alternative collection points.

3. The circulating heat dissipation system for a distribution box according to claim 2, characterized in that, The processing unit is also used to determine, based on the comparison between the target curve integral value and the preset curve integral value, the reason for non-compliance with the standard is poor gas flow in the distribution box and to improve the heat dissipation method in the box, or to determine the reason for non-compliance with the standard based on the curve integral variance.

4. The circulating heat dissipation system for a distribution box according to claim 3, characterized in that, The analysis unit is also used to determine, based on the comparison results of the curve integral variance and the preset curve integral variance, the reason for non-compliance with the standard is poor heat dissipation of a single core component and to improve the circulating heat dissipation method, or poor gas flow in the distribution box and to improve the heat dissipation method in the box.

5. The circulating heat dissipation system for a distribution box according to claim 4, characterized in that, The regulating unit is also used to reduce the regulating flow rate based on the temperature characterization difference, and the reduction in flow rate is positively correlated with the temperature characterization difference.

6. The circulating heat dissipation system for a distribution box according to claim 5, characterized in that, The adjustment unit is also used to adjust the rotation speed of the second heat dissipation device based on the temperature rise rate of the storage tank, and the change range of the rotation speed of the second heat dissipation device is positively correlated with the temperature rise rate of the storage tank.

7. The circulating heat dissipation system for a distribution box according to claim 5, characterized in that, The adjustment unit is also used to determine whether to repeatedly adjust the rotation speed of the second heat dissipation device in response to a first preset condition, including: The temperature characterization value of the marked point in the thermal field is re-detected. If the temperature characterization value is greater than the preset temperature characterization value, the heat dissipation system is determined to be non-compliant with the standard and the speed of the second heat dissipation device is repeatedly adjusted. After each adjustment is completed, it is determined whether the critical adjustment state is met. For the speed of the second heat dissipation device in the critical adjustment state, the reason for non-compliance with the standard is that the gas flow in the distribution box is poor and the heat dissipation in the distribution box is optimized. The critical state of adjustment is when the number of repeated adjustments reaches the adjustment threshold. The first preset condition is that the adjustment of the second heat dissipation device is completed.

8. The circulating heat dissipation system for a distribution box according to claim 7, characterized in that, The adjustment unit is also used to adjust the duty cycle of the first heat dissipation device based on the increase of the temperature characterization difference under the second preset condition. The increase in duty cycle is positively correlated with the temperature characterization difference; The second preset condition is that the second heat dissipation device has been adjusted and the circulating heat dissipation system does not meet the standard.

9. The circulating heat dissipation system for a distribution box according to claim 8, characterized in that, The adjustment unit is also used to respond to the third preset condition, determine the heat movement vector based on the adjusted heat field, determine the correction direction based on the comparison result of the heat movement vector and the preset vector, and determine the correction range of the duty cycle of the first heat dissipation device based on the absolute value of the deviation between the heat movement vector and the preset vector. The correction range of the duty cycle of the first heat dissipation device is positively correlated with the absolute value of the deviation. The third preset condition is that the duty cycle adjustment of the first heat dissipation device is completed.

10. The circulating heat dissipation system for a distribution box according to claim 8, characterized in that, The adjustment unit is also used to correct the duty cycle of the first heat dissipation device based on the ambient temperature of the distribution box, wherein the ambient temperature and the duty cycle of the first heat dissipation device are positively correlated.

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