Energy storage power supply heat dissipation control method and system and energy storage power supply

Abstract

This application provides a heat dissipation control method, system, and energy storage power supply. The energy storage power supply includes: a housing with an air duct; a power supply body installed inside the housing; a control board electrically connected to the power supply body and located inside the air duct; an air-cooling component connected to the housing and used to deliver gas into the air duct; and a first jet pipe disposed inside the air duct, the first jet pipe forming a first jet channel, the cross-sectional area of ​​the first jet channel gradually decreasing along the gas flow direction in the air duct, the first jet pipe being disposed opposite to the control board so that the first jet pipe can deliver gas to the surface of the control board; wherein, a first air inlet is formed at the first end of the first jet pipe, and a first air outlet is formed at the second end of the first jet pipe, the first air inlet and the first air outlet being distributed sequentially along the gas flow direction in the air duct, the cross-sectional area of ​​the first air inlet being S1, and the cross-sectional area of ​​the first air outlet being S2, wherein S1 / S2≥3.5.

Description

Technical Field

[0001] This application relates to the field of heat dissipation technology for large server power supplies, specifically to heat dissipation control methods, systems, and energy storage power supplies for energy storage power supplies. Background Technology

[0002] With the rapid development of modern electronic technology, the integration and power density of internal electronic components in data center servers, high-performance computing equipment, and energy storage systems in the new energy field are constantly increasing. This trend leads to the generation of a large amount of heat during operation, posing a severe challenge to the stability and lifespan of the power supply system. As the core of energy conversion, the power supply itself, including its control board and power devices (such as MOSFETs and inductors), heats up rapidly under high loads.

[0003] Currently, air cooling remains the mainstream heat dissipation method in energy storage power supplies and similar electronic devices due to its simple structure, low cost, and convenient maintenance. However, traditional air cooling technology mostly relies on opening heat dissipation holes in the casing, combined with fans installed inside or outside the casing, to expel heat through forced convection. This heat dissipation method has obvious limitations: when the airflow flows inside the casing, it easily forms a "thermal boundary layer" on the surface of heat-generating components such as control boards. This layer of hot air greatly hinders the transfer of heat from the board surface to the airflow, resulting in low heat dissipation efficiency.

[0004] Especially in energy storage power supplies, which have extremely high requirements for safety and stability, if localized hotspots on the control board cannot be dissipated in time, it may lead to performance degradation and accelerated aging of electronic components, or even system failure. In existing technologies, simply increasing fan speed can slightly improve airflow, but this not only introduces significant noise problems but also has little effect on breaking the thermal boundary layer and reducing the temperature of localized hotspots. Therefore, how to effectively break the thermal boundary layer and improve the heat dissipation efficiency of the control board using an air-cooling structure without significantly increasing system complexity and cost has become a pressing technical challenge for those skilled in the art. Summary of the Invention

[0005] The embodiments of this application provide a heat dissipation control method, system, and energy storage power supply for energy storage power.

[0006] In a first aspect, embodiments of this application provide an energy storage power source, comprising: The shell forms an air duct; The power supply unit is installed inside the housing; A control board is electrically connected to the power supply unit and is located inside the air duct. An air-cooled component, connected to the housing, is used to supply gas into the air duct; and A first jet tube is disposed within the air duct. The first jet tube forms a first jet channel. Along the flow direction of the gas in the air duct, the cross-sectional area of ​​the first jet channel gradually decreases. The first jet tube is disposed opposite to the control plate so that the first jet tube can deliver gas to the surface of the control plate. The first jet tube has a first air inlet at its first end and a first air outlet at its second end. The first air inlet and the first air outlet are distributed sequentially along the flow direction of the gas in the air duct. The cross-sectional area of ​​the first air inlet is S1 and the cross-sectional area of ​​the first air outlet is S2, wherein S1 / S2≥3.5.

[0007] In one embodiment, the control board has a first mounting area and a second mounting area, both of which are used to mount electronic components. The first mounting area has a gap, and the first air outlet of the first jet pipe is directly opposite the gap; and / or, The second mounting area has a gap, and the first air outlet of the first jet pipe is directly opposite the gap; and / or, A gap is formed between the first installation area and the second installation area, and the first air outlet of the first jet pipe is directly opposite the gap.

[0008] In one embodiment, the gas in the air duct flows along the length of the control panel; There are multiple first jet tubes, and the multiple first jet tubes are arranged side by side along the width direction of the control plate.

[0009] In one embodiment, the energy storage power supply further includes a second jet tube, which forms a second jet channel, and the cross-sectional area of ​​the second jet channel gradually decreases along the flow direction of the gas in the air duct. The second jet tube has a second air inlet at its first end and a second air outlet at its second end. The second air inlet and the second air outlet are distributed sequentially along the flow direction of the gas in the air duct. The cross-sectional area of ​​the second air inlet is S3 and the cross-sectional area of ​​the second air outlet is S4, wherein S3 / S4≥3.5. Along the thickness direction of the control plate, the first jet tube and the second jet tube are distributed sequentially in a direction away from the control plate, so that the airflow output through the first air outlet is located between the airflow output through the second air outlet and the control plate.

[0010] In one embodiment, the second air outlet has a square structure and extends along the width direction of the control panel.

[0011] In one embodiment, the cross-sectional area of ​​the second air outlet is larger than that of the first air outlet.

[0012] Secondly, embodiments of this application provide a heat dissipation control method for an energy storage power supply, applied to the energy storage power supply described above; the heat dissipation control method for the energy storage power supply includes: Obtain the real-time temperature of the control board; If the real-time temperature is higher than a preset first temperature threshold, the air-cooling component is controlled to increase the airflow rate of the gas delivered into the first jet tube.

[0013] In one embodiment, the energy storage power supply further includes a cooling element disposed within the air duct. Along the gas flow direction within the air duct, the cooling element, the first jet pipe, and the control board are sequentially distributed; the control method further includes: If the real-time temperature is higher than the second temperature threshold, the cooling element is controlled to be in working state so that the cooling element can reduce the temperature of the gas in the air duct.

[0014] Secondly, embodiments of this application provide a control system including a control component, the control component being used to execute the energy storage power supply heat dissipation control method as described above.

[0015] The beneficial effects of the embodiments of this application are as follows: In the embodiments of this application, firstly, by setting a first jet pipe 4 opposite to the control board within the air duct and using a tapered channel to accelerate the airflow to a high-speed jet, "point-to-point impact cooling" of the control board surface is achieved, specifically solving the problem of low heat dissipation efficiency caused by the thermal boundary layer in traditional air cooling. Compared to simply increasing the air volume or fan speed, this solution can more efficiently reduce the local hot spot temperature on the control board without significantly increasing noise and power consumption, extending the lifespan of electronic components and improving the safety and stability of the power supply system. Secondly, setting S1 / S2 to ≥3.5 ensures that the airflow obtains a sufficient acceleration ratio at the outlet, making the impact velocity and turbulence intensity of the jet sufficient to effectively break the thermal boundary layer. Experiments have verified that the heat dissipation gain is most significant at this ratio. In addition, the jet pipe has a simple structure, no moving parts, low cost, and is easy to integrate, with high compatibility with existing air-cooling components. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the energy storage power supply provided in the embodiments of this application; Figure 2 This is one of the simplified structural diagrams of a partial structure of the energy storage power supply provided in the embodiments of this application; Figure 3 This is a second simplified structural diagram of a portion of the energy storage power supply provided in the embodiments of this application; Figure 4 This is the third simplified structural diagram of a portion of the energy storage power supply provided in the embodiments of this application. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0019] The following is combined Figures 1 to 4 This application describes the energy storage power supply heat dissipation control method, system, and energy storage power supply.

[0020] According to an embodiment of the first aspect of this application, this application provides an energy storage power source. See also... Figure 1 Energy storage power sources, including: Shell 1, forming an air duct 11; The power supply unit is installed inside the housing 1; Control board 2 is electrically connected to the power supply body and is located inside the air duct 11; Air-cooled component 3 is connected to the housing 1 and is used to deliver gas into the air duct 11; and a first jet pipe 4 is disposed in the air duct 11. The first jet pipe 4 forms a first jet channel 41. Along the flow direction of the gas in the air duct 11, the cross-sectional area of ​​the first jet channel 41 gradually decreases. The first jet pipe 4 is disposed opposite to the control plate 2 so that the first jet pipe 4 can deliver gas to the surface of the control plate 2. The first jet pipe 4 has a first air inlet 42 at its first end and a first air outlet 43 at its second end. The first air inlet 42 and the first air outlet 43 are distributed sequentially along the flow direction of the gas in the air duct 11. The cross-sectional area of ​​the first air inlet 42 is S1 and the cross-sectional area of ​​the first air outlet 43 is S2, wherein S1 / S2≥3.5.

[0021] Understandably, after the air-cooled component 3 is activated, gas enters through the inlet of the air duct 11, and a portion of the airflow flows into the first air inlet 42 of the first jet pipe 4. Since the cross-sectional area of ​​the first jet channel 41 decreases significantly from the air inlet to the air outlet (area ratio ≥ 3.5), according to the principle of fluid continuity and the Bernoulli effect, the gas is accelerated within the channel, forming a high-speed, high-dynamic-pressure jet when ejected from the first air outlet 43. This jet directly impacts the surface of the control plate 2, effectively disrupting the thermal boundary layer adhering to the plate surface—that is, the static hot air film that originally hindered heat transfer—and replacing it with a strong turbulent impact zone, thereby significantly improving the convective heat transfer coefficient between the control plate 2 and the airflow. The heated gas then continues to flow along the air duct 11 and exits the casing 1.

[0022] First, by setting a first jet pipe 4 opposite to the control board 2 within the air duct 11 and using a tapered channel to accelerate the airflow to a high-speed jet, "targeted impact cooling" of the control board 2 surface is achieved, specifically addressing the problem of low heat dissipation efficiency caused by the thermal boundary layer in traditional air cooling. Compared to simply increasing airflow or fan speed, this solution can more efficiently reduce the local hot spot temperature on the control board 2 without significantly increasing noise and power consumption, extending the lifespan of electronic components and improving the safety and stability of the power supply system. Second, setting S1 / S2 to ≥3.5 ensures that the airflow obtains a sufficient acceleration ratio at the outlet, making the jet's impact velocity and turbulence intensity sufficient to effectively break the thermal boundary layer. Experiments have verified that the heat dissipation gain is most significant at this ratio. In addition, the jet pipe has a simple structure, no moving parts, low cost, and is easy to integrate, with high compatibility with existing air-cooling components.

[0023] In some examples, the first jet tube 4 can be made of metal or thermally conductive plastic, and its cross-sectional shape can be circular, rectangular, or flat slit-shaped, as long as the cross-sectional area gradually decreases. The first air outlet 43 can be set as a narrow slit to cover multiple heat-generating elements on the control board 2. The air-cooling component 3 can be an axial fan, centrifugal fan, or blower, installed at the inlet or outlet end of the air duct 11. To further improve the heat dissipation effect, multiple jet tubes can be set, each aimed at different hot spots on the control board 2, or the distance between the jet tube and the control board 2 can be adjusted to the length of the jet core area (usually 5 to 10 times the outlet diameter) to achieve the best impact effect.

[0024] In some embodiments, see Figure 2 The control board 2 has a first mounting area 21 and a second mounting area 22, both of which are used to mount electronic components. The first mounting area 21 has a gap 23, and the first air outlet 43 of the first jet pipe 4 is directly opposite the gap 23; and / or, The second mounting area 22 has a gap 23, and the first air outlet 43 of the first jet pipe 4 is directly opposite the gap 23; and / or, A gap 23 is formed between the first installation area 21 and the second installation area 22, and the first air outlet 43 of the first jet pipe 4 is directly opposite the gap 23.

[0025] Understandably, in traditional air-cooled structures, airflow often directly impacts the top surface of electronic components, easily obstructed by the component body, forming localized vortices or swirling flows, making it difficult to reach narrow areas between components or the root of components. This application addresses this by aligning the outlet of the first jet pipe 4 with specific gaps 23 on the control board 2, allowing high-speed jets to preferentially enter these gaps. After entering the gaps 23, the airflow can, on the one hand, scour the sidewalls and solder joints of the electronic components from the side, and on the other hand, penetrate the gaps 23 to reach the substrate surface of the control board 2, forming a "swirling flow" or "through flow" effect. This design not only effectively disrupts the thermal boundary layer on the component surface but also further enhances convective heat transfer between the components and the substrate surface, achieving "three-dimensional" cooling of the electronic components. The presence of gaps 23 provides a low-resistance penetration path for the jet, avoiding airflow dead zones caused by densely packed components.

[0026] First, by aligning the jet outlet directly with gap 23, the airflow can bypass the obstruction on top of the components and penetrate areas that are difficult to reach with traditional air cooling, significantly improving heat dissipation uniformity and overall efficiency. Second, both the tiny gaps 23 between components within the mounting area and the larger gaps between two functional areas can be fully utilized as cooling channels without the need for additional openings or pipes, resulting in a compact structure. Furthermore, this design allows the same jet to simultaneously cool the sides and bottoms of multiple adjacent components, achieving a "one-point air supply, multi-point heat dissipation" effect, further improving the efficiency of cooling energy utilization.

[0027] In some examples, the first mounting area 21 can accommodate multiple MOSFETs arranged side-by-side, with a natural gap 23 of approximately 1-2 mm between the pins. The flat outlet of the first jet pipe 4 is aligned with this gap 23, allowing high-speed airflow to enter and flow along the pin direction, carrying away heat. The second mounting area 22 can accommodate multiple capacitors, with the annular gap 23 between the capacitors also serving as a jet inlet. When a process gap 23 of 5-10 mm is left between the first mounting area 21 and the second mounting area 22, the first jet pipe 4 can be aligned with this area. The jet first impacts the substrate and then disperses to both sides, simultaneously cooling the edge components of both functional areas. Multiple jet pipes can be aligned with gaps 23 at different locations according to the hotspot distribution, thereby achieving efficient and directional cooling of the entire board.

[0028] In some embodiments, the gas in the air duct 11 flows along the length of the control plate 2; There are multiple first jet tubes 4, and the multiple first jet tubes 4 are arranged side by side along the width direction of the control plate 2.

[0029] Understandably, when the air-cooled component 3 is activated, the main airflow within the air duct 11 flows along the length (i.e., longitudinally) of the control plate 2, forming the basic cooling airflow. Simultaneously, multiple parallel first jet pipes 4 are distributed along the width (i.e., laterally) of the control plate 2. Each jet pipe independently draws gas from the main airflow and accelerates the gas downstream through its own gradually narrowing jet channel, forming multiple jet beams arranged along the width. These jet beams impact different lateral positions of the control plate 2 perpendicular to its surface (or at a certain angle). Due to the parallel arrangement of the jet pipes, their outlets cover a relatively wide area of ​​the control plate 2 from one edge to the other, upgrading the original single cooling mode dominated by longitudinal convection to a composite cooling mode combining "longitudinal main cooling" and "lateral multi-point impact cooling."

[0030] First, multiple jet tubes arranged side-by-side along the width direction can form a dense and uniform impact cooling array across the entire width of the control board 2, effectively avoiding heat dissipation blind spots caused by the limited coverage of a single jet tube, and ensuring that electronic components at different lateral positions on the control board 2 receive sufficient jet impact. Second, this side-by-side arrangement is perpendicular to the original longitudinal main airflow direction within the air duct 11, disrupting the thermal boundary layer from multiple dimensions. This is particularly suitable for scenarios where electronic components on the control board 2 are distributed in a matrix or where hotspots are dispersed, significantly improving the uniformity and overall efficiency of heat dissipation. Furthermore, the multiple jet tubes can be independently optimized (e.g., adjusting their respective area ratios, outlet shapes, etc.) to match the differences in thermal loads in different lateral regions, achieving refined thermal management.

[0031] In some examples, the control board 2 is 100mm wide and can accommodate 3 to 5 first jet tubes 4 arranged side-by-side. The outlet of each jet tube is designed as a flat slit, with the width matching the corresponding component layout area. Multiple jet tubes can share a single air inlet chamber or draw air from the main airflow separately. To ensure uniform airflow distribution, the cross-sectional area of ​​the air inlet of each jet tube can be differentiated according to its distance from the air-cooled component 3 (those closer to the air-cooled component 3 can be slightly smaller, and those farther away can be slightly larger). The jet tubes can be integrally injection molded or spliced ​​from independent components, installed on a bracket within the air duct 11, and maintain a constant impact distance from the control board 2.

[0032] In some embodiments, see Figure 3 The energy storage power supply also includes a second jet tube 5, which forms a second jet channel 51. Along the flow direction of the gas in the air duct 11, the cross-sectional area of ​​the second jet channel 51 gradually decreases. The second jet pipe 5 has a second air inlet 52 at its first end and a second air outlet 53 at its second end. The second air inlet 52 and the second air outlet 53 are distributed sequentially along the flow direction of the gas in the air duct 11. The cross-sectional area of ​​the second air inlet 52 is S3 and the cross-sectional area of ​​the second air outlet 53 is S4, wherein S3 / S4≥3.5. Along the thickness direction of the control plate 2, the first jet pipe 4 and the second jet pipe 5 are distributed sequentially in a direction away from the control plate 2, so that the airflow output through the first air outlet 43 is located between the airflow output through the second air outlet 53 and the control plate 2.

[0033] Understandably, after the air-cooled component 3 is activated, the main airflow in the air duct 11 enters the first jet pipe 4 and the second jet pipe 5 respectively. Since both have a significant convergence ratio (≥3.5), the gas is accelerated within their respective channels, resulting in two high-speed jets ejected from the first air outlet 43 and the second air outlet 53 respectively. Because the first jet pipe 4 is closer to the control plate 2, its jet first impacts the surface of the control plate 2, efficiently disrupting the thermal boundary layer and performing the first stage of cooling. The jet from the second jet pipe 5 is located above the jet from the first jet pipe 4, forming a double-layer jet structure in space. The upper jet (second jet pipe 5) can, on the one hand, create a "suction" or "ejection" effect on the lower jet, enhancing the flow stability of the lower jet and preventing it from diffusing too quickly; on the other hand, the upper jet itself will also generate a secondary impact on the control plate 2, or mix with the lower jet after it rebounds, further strengthening the disturbance, thereby forming a stronger turbulent region above the surface of the control plate 2. This method of superimposing two jets can more thoroughly remove the thermal boundary layer and expand the effective cooling coverage area.

[0034] First, by setting up a first jet tube 4 and a second jet tube 5 sequentially distributed along the thickness direction, a "relay-style" or "enhanced" jet impact on the surface of the control plate 2 is achieved. The high-speed airflow output from the second jet tube 5 not only contributes to the cooling effect itself, but more importantly, it suppresses the velocity attenuation of the jet from the first jet tube 4 after it moves away from the outlet, extending the length of the jet core region and making the impact cooling effect wider and more durable. Second, the interaction between the upper and lower jet layers produces complex mixing and entrainment effects, generating higher turbulence intensity compared to a single-layer jet, thereby significantly improving the convective heat transfer coefficient of the control plate 2 surface, especially suitable for local hot spots with extremely high heat generation power. In addition, this structure does not require additional fans or complex air duct 11 modifications; a step-wise improvement in heat dissipation performance can be achieved simply by stacking jet tubes, offering advantages such as low cost and ease of integration.

[0035] In some examples, the first jet tube 4 and the second jet tube 5 can be arranged coaxially or in parallel. For example, the outlet of the second jet tube 5 can be designed as an annular gap surrounding the outlet of the first jet tube 4, forming a combination of a central jet and an annular jet. High-heat components (such as the main control chip) on the control board 2 can be positioned directly opposite the double-layer jet region. The vertical distance between the first jet tube 4 and the second jet tube 5 can be optimized according to the principles of jet dynamics, typically taking 2 to 5 times the outlet diameter of the first jet tube 4, to ensure effective interference of the upper jet before the lower jet reaches the board.

[0036] In some embodiments, the second air outlet 53 has a square structure and extends along the width direction of the control panel 2.

[0037] Understandably, when the second jet tube 5 is operating, high-speed airflow is ejected from the second air outlet 53. Since the air outlet is square and extends along the width of the control plate 2, the jet forms a uniform, flat, wide airflow curtain in the width direction. Compared to a circular air outlet, the jet generated by the square extension structure has a more uniform velocity distribution and a larger coverage area in the width direction, enabling simultaneous impact cooling of multiple electronic components or areas in the width direction of the control plate 2. The width direction of this square air outlet is consistent with the width direction of the control plate 2, allowing the jet to adapt to the arrangement direction of components on the plate surface, thereby effectively covering the main heat-generating areas from one edge to the other of the control plate 2. Simultaneously, the jet generated by the square air outlet has a shorter jet core area in the length direction (i.e., the gas flow direction) but a wider uniform area in the width direction. This characteristic makes it particularly suitable for use in conjunction with multiple side-by-side first jet tubes 4 (as described in claim 3), providing a uniform "air source curtain" to multiple air outlets of the lower first jet tube 4 or forming a cross-impact with it.

[0038] First, the square air outlet structure extending along its width significantly increases the effective cooling coverage area of ​​a single second jet pipe 5, enabling full coverage of the control plate 2 across its width with fewer jet pipes, simplifying the system structure and reducing costs. Second, the wide jet generated by this shape acts as a uniform "upper air curtain," forming a three-dimensional cross-cooling network with the point or line jets of multiple lower first jet pipes 4, further enhancing the turbulence intensity and heat transfer uniformity on the surface of the control plate 2. Furthermore, the square air outlet is simple to manufacture, easily achieved through extrusion or injection molding, and is less prone to clogging, making it suitable for long-term operation in dusty environments.

[0039] In some examples, the width of the second air outlet 53 can be approximately equal to the width of the control plate 2 (e.g., the control plate 2 is 150mm wide, and the air outlet is 140mm wide), and its height (i.e., the slit height of the square opening) can be set according to the required jet velocity, typically ranging from 0.5mm to 2mm. The second jet pipe 5 can be a flat square pipe, with its internal jet channel gradually transitioning from a circular or rectangular air inlet to a square slit air outlet at the end, while still satisfying the area ratio S3 / S4≥3.5. Multiple first jet pipes 4 can be arranged side-by-side below the second jet pipe 5 along the width direction of the control plate 2, with the air outlet of each first jet pipe 4 facing the component gap 23 on the control plate 2. The square air outlet of the second jet pipe 5 can be designed to be parallel to the length direction of the first jet pipe 4, so that the upper airflow can cover the outlet area of ​​all the first jet pipes 4.

[0040] In some embodiments, the cross-sectional area of ​​the second air outlet 53 is larger than the cross-sectional area of ​​the first air outlet 43.

[0041] Understandably, due to the larger cross-sectional area of ​​the second air outlet 53, the second jet pipe 5 can output a larger volumetric flow rate of air under the same inlet pressure and taper ratio. This larger flow rate of upper airflow, after exiting the second air outlet 53, forms a wider-coverage, more powerful air curtain above the surface of the control plate 2. Furthermore, when it interacts with the lower-level jet from the smaller-section but higher-velocity first jet pipe 4, the larger flow rate of upper airflow can more effectively entrain and drive the lower jet, suppressing the rapid diffusion and velocity decay of the lower high-speed jet, allowing it to impact the surface of the control plate 2 in a more concentrated manner, thereby extending the effective range of the jet core area. Simultaneously, the airflow output from the larger-section second air outlet 53 also produces a secondary cooling effect on the control plate 2, forming a composite cooling mode of "primary impact + secondary coverage."

[0042] First, the larger cross-sectional area of ​​the second air outlet 53 ensures sufficient gas flow, providing not only strong heat dissipation capabilities but also a stable "cushion" or "ejector" environment for the jet from the lower first jet tube 4, significantly improving the impact intensity and uniformity of the high-speed jet reaching the surface of the control board 2. Second, this design with matching large and small cross-sections achieves functional differentiation: "low-flow, high-speed impact; high-flow, low-speed coverage." The first jet tube 4 generates a high-speed jet to disrupt the thermal boundary layer, while the second jet tube 5 provides a large flow to maintain overall heat exchange and expand the cooling range. Working together, they achieve higher overall heat dissipation efficiency compared to a single-sized jet tube, while maintaining the same total airflow. Furthermore, this design avoids hotspot cooling failure caused by premature diffusion of the lower jet, making it particularly suitable for applications where the distance between the control board 2 and the air-cooled component 3 is large or where heat-generating elements are widely distributed.

[0043] In some examples, the cross-sectional area of ​​the first air outlet 43 can be designed to be 10 mm², and the cross-sectional area of ​​the second air outlet 53 can be designed to be 30 mm² (i.e., the area of ​​the second air outlet 53 is three times that of the first air outlet 43). The first air outlet 43 can be slit-shaped (1 mm wide × 10 mm long), and the second air outlet 53 can be square or rectangular (5 mm wide × 6 mm long). Multiple first jet tubes 4 can be arranged side-by-side, and the number of second jet tubes 5 can be one or arranged corresponding to the first jet tubes 4. By adjusting the area ratio of the first air outlet 43 to the second air outlet 53, the balance between the lower-layer impact velocity and the upper-layer coverage flow rate can be optimized. Experiments show that when the area of ​​the second air outlet 53 is larger than that of the first air outlet 43, the average convective heat transfer coefficient on the surface of the control plate 2 can be increased by 20% to 35%.

[0044] According to an embodiment of the second aspect of this application, this application also provides a heat dissipation control method for an energy storage power supply, applied to the aforementioned energy storage power supply. The heat dissipation control method for the energy storage power supply includes: S1. Obtain the real-time temperature of the control board 2; For example, the main control module acquires temperature data in real time through at least one temperature sensing unit disposed on the control board 2. This temperature sensing unit is preferably a digital thermistor (such as a TMP117 with an I²C interface), whose temperature-sensing element is directly mounted on a high-heat-generating area on the control board 2—for example, the central pad of multiple parallel MOSFETs or the bottom of the main control IC package—to accurately reflect the temperature of local hot spots. The main control module reads the digital temperature value output by the sensor at a preset sampling period (e.g., every 1 second). In one sampling, the real-time temperature obtained is 82°C.

[0045] S2. If the real-time temperature is higher than the preset first temperature threshold, the air-cooling component 3 is controlled to increase the airflow rate of the gas delivered into the first jet pipe 4. For example, the main control module compares the acquired real-time temperature (82°C) with a first temperature threshold pre-stored in non-volatile memory. This first temperature threshold is set according to the long-term operational reliability boundary of key electronic components on control board 2, with a typical value of 80°C (corresponding to the recommended maximum junction temperature margin for industrial-grade semiconductor devices). Since 82°C > 80°C, the main control module determines that the current heat dissipation capacity is insufficient to maintain a safe temperature rise and then generates a fan speed increase command. This command increases the speed of the fan from the current 2800 RPM to 3500 RPM by adjusting the duty cycle of the PWM signal output to the air-cooled component 3 (in this example, an axial fan installed at the inlet of the air duct 11 in the housing 1). As the fan speed increases, the total airflow pressure in the air duct 11 increases, causing the gas flow rate and velocity flowing into the first air inlet 42 of the first jet pipe 4 to increase synchronously. Thanks to the structural characteristics of the first jet tube 4, which has a significantly reduced cross-sectional area along the airflow direction (S1 / S2 ≥ 3.5), the higher inlet velocity is efficiently converted into a stronger high-speed jet at the outlet. This jet accurately impacts the surface of the control plate 2, effectively destroying the thermal boundary layer and accelerating the transfer of heat from the high-temperature components to the airflow, thereby suppressing further temperature rise.

[0046] Understandably, by acquiring the temperature of the control board 2 in real time through step S1, and dynamically increasing the air velocity of the air-cooled component 3 in step S2 based on the comparison result between the temperature and the first threshold to enhance the air supply intensity to the first jet pipe 4, this method constructs an active thermal management mechanism deeply coupled with the hardware structure. Since the first jet pipe 4 has the ability to efficiently convert the increased inlet air velocity into a high dynamic pressure jet (relying on its tapered channel with S1 / S2 ≥ 3.5), the increased air velocity can directly translate into a stronger destructive force on the thermal boundary layer of the control board 2 surface, thereby significantly improving local heat transfer efficiency. Thus, it not only effectively prevents performance degradation or device failure of the control board 2 due to overheating, ensuring the safe operation of the energy storage power supply under high load conditions, but also avoids unnecessary energy waste through closed-loop feedback, balancing reliability, energy efficiency, and quietness, providing an intelligent and structurally coordinated heat dissipation control paradigm for high power density energy storage systems.

[0047] In some embodiments, see Figure 1 The energy storage power supply also includes a cooling component 6, which is disposed within the air duct 11. Along the gas flow direction within the air duct 11, the cooling component 6, the first jet pipe 4, and the control board 2 are sequentially distributed; the control method further includes: S3. If the real-time temperature is higher than the second temperature threshold, control the cooling component 6 to be in working state so that the cooling component 6 can reduce the temperature of the gas in the air duct 11. For example, the main control module continuously monitors the real-time temperature of the control board 2. In one sampling, the temperature obtained is 93℃. The main control module compares this value with a preset second temperature threshold. This second temperature threshold is higher than the first temperature threshold, with a typical value of 90℃, indicating that the control board 2 has entered a high-risk overheating range, and simply increasing the fan speed is insufficient to effectively suppress the temperature rise. Since 93℃ > 90℃, the main control module determines that active cooling measures need to be activated, and then sends an activation command to the cooling component 6.

[0048] In this embodiment, the cooling component 6 is a thermoelectric cooler (TEC). Its cold end is embedded in the wall of the air duct 11, and its hot end is connected to the heat dissipation fins outside the housing 1 via thermally conductive silicone grease. It is also equipped with an independent small fan for heat dissipation at the hot end. Upon receiving the start command, the TEC is powered on and its cold end rapidly cools down to 15°C below the ambient temperature, directly cooling the gas flowing through its surface in the air duct 11. Since the cooling component 6 is located upstream of the first jet pipe 4, the cooled low-temperature gas first enters the first air inlet 42 of the first jet pipe 4. After the low-temperature gas is accelerated through the first jet channel 41, the high-speed jet ejected from the first air outlet 43 not only has high dynamic pressure but also a lower initial temperature, thus achieving a dual cooling effect of enhanced convective heat transfer and increased heat transfer temperature difference when impacting the surface of the control board 2.

[0049] Understandably, by activating the cooling component 6 located upstream of the air duct 11 when the real-time temperature exceeds a higher second temperature threshold, it actively cools the flowing gas. Combined with the acceleration effect of the downstream first jet pipe 4, a low-temperature, high-speed jet impacts the surface of the control board 2. This method constructs a multi-level, layered intelligent heat dissipation control system. Thanks to the orderly arrangement of "cooling component 6—first jet pipe 4—control board 2" along the airflow direction, cooling energy is efficiently transferred and concentrated on the core heat-generating area. Therefore, it not only effectively curbs the overheating risk of the control board 2 under extreme conditions and significantly improves the thermal safety margin of the energy storage power supply, but also avoids the overuse of active cooling devices through threshold grading, balancing reliability, energy efficiency, and system lifespan, providing an advanced thermal management solution for high-power, highly environmentally adaptable energy storage devices.

[0050] In some embodiments, see Figure 4 The energy storage power supply also includes a first temperature detection element and a second temperature detection element. The first temperature detection element is connected to the control board 2 and is used to detect the real-time temperature of the control board 2. The air duct 11 includes a first sidewall 111 and a second sidewall 112 disposed opposite to each other. The control board 2 is disposed on the first sidewall 111, and the second temperature detection element is disposed on the second sidewall 112. The second temperature detection element is used to detect the gas temperature at the second sidewall 112. The control method further includes: If the difference between the detected value of the first temperature sensor and the detected value of the second temperature sensor is greater than a preset value, the power of the air-cooled component 3 is increased to increase the wind speed in the air duct 11.

[0051] It is understandable that by setting a first temperature sensor on the first sidewall 111 where the control board 2 is located, and a second temperature sensor on the opposite second sidewall 112, and dynamically adjusting the power of the air-cooled component 3 based on whether the difference between the two detected values ​​exceeds a preset threshold, this method constructs an active wind speed control mechanism based on heat dissipation efficiency status perception. Since the temperature difference ΔT directly reflects the heat exchange capacity between the control board 2 and the cooling airflow, its abnormal increase can serve as an early warning signal for blockage of the air duct 11, jet attenuation, or airflow distribution imbalance. By timely increasing the wind speed, not only are effective convective heat exchange conditions restored, but the risk of sudden overheating caused by local heat dissipation deterioration is also avoided. Combined with the orderly layout of "cooling component 6 - first jet pipe 4 - control board 2" within the air duct 11, this temperature difference control strategy further enhances the adaptability and reliability of the entire heat dissipation system, providing intelligent and forward-looking thermal management guarantees for the long-term stable operation of the energy storage power supply in complex operating environments.

[0052] In some embodiments, see Figure 1 The energy storage power supply also includes a gas pressurizing component 7, which is located at the first air inlet 42. After the step of controlling and increasing the power of the air-cooled component 3, the method further includes: If the difference between the detection value of the first temperature detector and the detection value of the second temperature detector is still greater than the preset value, the gas pressurizing component 7 is controlled to be in working state so that the gas pressurizing component 7 increases the pressure of the gas delivered to the jet pipe.

[0053] Understandably, if the temperature difference between the first and second temperature sensors still exceeds a preset value after increasing the power of the air-cooled component 3, the gas pressurizing component 7 located at the first air inlet 42 is activated to increase the gas pressure delivered to the jet pipe. This method constructs a deep heat dissipation enhancement mechanism with primary and secondary coordination and graded response. The local pressurization effect of the gas pressurizing component 7 effectively compensates for the jet kinetic energy attenuation caused by increased resistance of the air duct 11 or thin air, ensuring that the first jet pipe 4 always outputs a high-speed airflow with sufficient impact force. Combined with the spatial layout and temperature difference feedback logic of "control board 2 - first jet pipe 4 - second sidewall 112 temperature detection", the system can not only sense absolute temperature risks, but also diagnose and repair functional degradation during the heat dissipation process. As a result, the thermal adaptability and long-term operational stability of the energy storage power supply in complex and harsh environments are significantly improved, while energy consumption is controlled through intelligent start-stop strategies, achieving a balance between high performance and high reliability.

[0054] In some embodiments, after the step of controlling the air-cooling component 3 to increase the airflow rate of the gas delivered into the first jet pipe 4 if the real-time temperature is higher than a preset first temperature threshold, the method further includes: S11. Based on the temperature distribution characteristics of the surface of the control board 2, the location characteristics of the highest temperature point on the surface of the control board 2 are obtained; S12. Based on the spatial relative positional relationship between the location characteristics of the highest temperature point and the location characteristics of the air outlet of the first jet pipe 4, the airflow impact offset is obtained. S13. Based on the airflow impact offset, control the air-cooled component 3 to adjust the angle of the direction guide vanes of the output airflow; S14. Based on the adjusted angle of the directional guide vanes, a directional accelerated airflow is formed pointing towards the location characteristics of the highest temperature point; S15. Based on the continuous impact of the directional accelerated airflow on the location characteristics of the highest temperature point, precise heat dissipation of local hot spots on the control board 2 is achieved.

[0055] Understandably, by identifying the location of the highest temperature point based on the surface temperature distribution of the control board 2 after the wind speed increases, and calculating the airflow impact offset in conjunction with the fixed position of the air outlet of the first jet pipe 4, the angle of the guide vanes at the outlet of the air-cooled component 3 is adjusted accordingly to form a directional accelerated airflow pointing towards the hot spot. This method achieves a paradigm shift in heat dissipation from "global enhancement" to "targeted attack." Relying on a closed-loop mechanism of temperature field perception, spatial relationship calculation, and airflow vector control, the system can dynamically adapt to changes in the heating mode, ensuring that cooling energy is always concentrated on the area most in need of heat dissipation. Combining the aforementioned temperature difference monitoring, graded wind speed adjustment, and local pressurization strategy, this solution constructs an intelligent thermal management system covering multiple dimensions of intensity, direction, pressure, and temperature, significantly improving the thermal safety margin and energy efficiency level of the energy storage power supply under high power density and complex load conditions.

[0056] In some embodiments, the step of controlling the air-cooling component 3 to increase the air velocity of the gas delivered into the first jet pipe 4 specifically includes: S21. Based on the real-time airflow pressure characteristics inside the first jet tube 4, the dynamic pressure value at the outlet of the first jet tube 4 is obtained. S22. Based on the pressure difference characteristics between the dynamic pressure value and the preset standard dynamic pressure threshold, the airflow velocity compensation amount is obtained; S23. Based on the airflow speed compensation amount, control the air-cooled component 3 to adjust the motor speed drive signal; S24. Based on the adjusted motor speed drive signal, drive the air-cooled component 3 to output a compensated wind speed that matches the pressure difference characteristics; S25. Based on the Bernoulli effect of the compensated wind speed in the contraction section of the first jet pipe 4, ensure that the airflow reaches the critical velocity required to destroy the thermal boundary layer at the outlet.

[0057] Understandably, by calculating the pressure difference based on the real-time airflow pressure inside the first jet tube 4 and the standard dynamic pressure threshold, an airflow velocity compensation is generated to dynamically adjust the motor speed of the air-cooled component 3. Finally, the Bernoulli effect of the jet tube's contraction section is utilized to ensure that the outlet airflow reaches the critical velocity required to disrupt the thermal boundary layer. This method represents a technological leap from "experience-based acceleration" to "precise energy supply driven by a physical model." It not only ensures the reliability and consistency of jet cooling performance but also significantly improves the system's adaptability and energy utilization efficiency under different operating conditions through a closed-loop feedback mechanism. Combined with the overall thermal management architecture, it provides an advanced heat dissipation solution for high-power-density energy storage power supplies, offering high performance, low power consumption, and strong environmental adaptability.

[0058] In some embodiments, prior to the step of obtaining the real-time temperature of the control board 2, the method further includes: S31. Based on the real-time current value characteristics collected by the input current sensor of the power supply body, the real-time heat load generation rate of the power supply body is obtained. S32. Based on the corresponding characteristics of the real-time heat load generation rate and the historical heat load-temperature rise curve, the predicted temperature rise trend of the control board 2 is obtained. S33. Based on the predicted temperature rise trend, determine whether the first temperature threshold is about to be crossed; S34. Based on the judgment result that a crossing is imminent, control the air-cooled component 3 to start the pre-operation mode in advance; S35. Based on the pre-cooling airflow output by the pre-operation mode, reduce the surface ambient temperature of the control board 2 before the actual temperature rises.

[0059] In addition, this application also provides a control system, including a control component, which is used to execute the energy storage power supply heat dissipation control method as described above.

[0060] On the other hand, this application also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions, and when the program instructions are executed by a computer, the computer is able to execute the energy storage power supply heat dissipation control method provided by the above methods. The method includes: Obtain the real-time temperature of the control board 2; If the real-time temperature is higher than the preset first temperature threshold, the air-cooling component 3 is controlled to increase the airflow rate of the gas delivered into the first jet pipe 4.

[0061] According to an embodiment of the fourth aspect of this application, the application further includes a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to perform the energy storage power supply heat dissipation control methods provided above, the method comprising: Obtain the real-time temperature of the control board 2; If the real-time temperature is higher than the preset first temperature threshold, the air-cooling component 3 is controlled to increase the airflow rate of the gas delivered into the first jet pipe 4.

[0062] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0063] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or some parts of embodiments.

[0064] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An energy storage power source, characterized in that, include: The shell forms an air duct; The power supply unit is installed inside the housing; A control board is electrically connected to the power supply unit and is located inside the air duct. An air-cooled component, connected to the housing, is used to supply gas into the air duct; and A first jet tube is disposed within the air duct. The first jet tube forms a first jet channel. Along the flow direction of the gas in the air duct, the cross-sectional area of ​​the first jet channel gradually decreases. The first jet tube is disposed opposite to the control plate so that the first jet tube can deliver gas to the surface of the control plate. The first jet tube has a first air inlet at its first end and a first air outlet at its second end. The first air inlet and the first air outlet are distributed sequentially along the flow direction of the gas in the air duct. The cross-sectional area of ​​the first air inlet is S1 and the cross-sectional area of ​​the first air outlet is S2, wherein S1 / S2≥3.

5.

2. The energy storage power supply according to claim 1, characterized in that, The control board has a first mounting area and a second mounting area, both of which are used to mount electronic components. The first mounting area has a gap, and the first air outlet of the first jet pipe is directly opposite the gap; and / or, The second mounting area has a gap, and the first air outlet of the first jet pipe is directly opposite the gap; and / or, A gap is formed between the first installation area and the second installation area, and the first air outlet of the first jet pipe is directly opposite the gap.

3. The energy storage power supply according to claim 1, characterized in that, The gas in the air duct flows along the length of the control panel; There are multiple first jet tubes, and the multiple first jet tubes are arranged side by side along the width direction of the control plate.

4. The energy storage power source according to any one of claims 1 to 3, characterized in that, The energy storage power supply also includes a second jet tube, which forms a second jet channel. Along the flow direction of the gas in the air duct, the cross-sectional area of ​​the second jet channel gradually decreases. The second jet tube has a second air inlet at its first end and a second air outlet at its second end. The second air inlet and the second air outlet are distributed sequentially along the flow direction of the gas in the air duct. The cross-sectional area of ​​the second air inlet is S3 and the cross-sectional area of ​​the second air outlet is S4, wherein S3 / S4≥3.

5. Along the thickness direction of the control plate, the first jet tube and the second jet tube are distributed sequentially in a direction away from the control plate, so that the airflow output through the first air outlet is located between the airflow output through the second air outlet and the control plate.

5. The energy storage power supply according to claim 4, characterized in that, The second air outlet has a square structure and extends along the width of the control panel.

6. The energy storage power supply according to claim 4, characterized in that, The cross-sectional area of ​​the second air outlet is larger than that of the first air outlet.

7. A heat dissipation control method for an energy storage power supply, applied to the energy storage power supply as described in any one of claims 1 to 6, characterized in that, include: Obtain the real-time temperature of the control board; If the real-time temperature is higher than a preset first temperature threshold, the air-cooling component is controlled to increase the airflow rate of the gas delivered into the first jet tube.

8. The energy storage power supply heat dissipation control method according to claim 7, characterized in that, The energy storage power supply also includes a cooling component, which is disposed within the air duct. Along the gas flow direction within the air duct, the cooling component, the first jet pipe, and the control board are sequentially distributed; the control method further includes: If the real-time temperature is higher than the second temperature threshold, the cooling element is controlled to be in working state so that the cooling element can reduce the temperature of the gas in the air duct.

9. A control system, characterized in that, It includes a control component for performing the energy storage power supply heat dissipation control method as described in claim 7 or 8.

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