Energy storage DC-DC control module structure device

By combining an aluminum alloy shell, a fiberglass support, and a fluorosilicone rubber sealing ring, the design solves the problems of insufficient protection, poor heat dissipation, and complex installation of energy storage DC-DC control modules, achieving a compact and highly reliable module structure suitable for various energy storage scenarios.

CN121968499APending Publication Date: 2026-05-01CHONGQING JINGWEI ZHIQING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING JINGWEI ZHIQING TECHNOLOGY CO LTD
Filing Date
2026-01-15
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing energy storage DC-DC control modules suffer from insufficient mechanical protection, poor thermal management performance, weak electromagnetic compatibility, and cumbersome installation and maintenance. Furthermore, their redundant structural dimensions limit their application in portable and mobile energy storage scenarios.

Method used

The modular housing is made of aluminum alloy, with fiberglass mounting brackets, fluorosilicone rubber sealing rings, and standardized design, forming a compact and maintainable modular structure. Combined with high-density wiring and remote diagnostic functions, it achieves efficient heat dissipation, electromagnetic shielding, and convenient installation.

Benefits of technology

The modules are smaller and lighter, with improved heat dissipation efficiency, enhanced electromagnetic compatibility, and easier installation and maintenance. Their application scope has been expanded to portable and mobile energy storage devices, their service life has been extended, and their operation and maintenance costs have been reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides an energy storage DC-DC control module structure device, and relates to the technical field of energy storage equipment, the energy storage DC-DC control module structure device comprises a module shell, the left side and the right side of the module shell are both provided with fixing supports, the left side of the module shell is provided with a first connector, the right side of the module shell is provided with a second connector, and the module shell is provided with a module upper cover. A sealing ring and a module PCBA are arranged in the module shell, the module shell is made of a high-strength alloy material, an installation groove matched with the installation of the module PCBA is formed in the module shell, a limiting structure is arranged on the wall of the groove, and the fixing support is assembled in the module shell. The space occupation and the carrying cost of the energy storage equipment are greatly reduced, the device is not only suitable for a fixed energy storage power station, but also can be flexibly applied to mobile energy storage scenes such as a portable energy storage power supply, a mobile charging station and a vehicle-mounted energy storage system, and the market application range of the product is effectively expanded.
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Description

A structure device for an energy storage DC-DC control module Technical Field

[0001] This invention belongs to the field of energy storage equipment technology, and more specifically, relates to an energy storage DC-DC control module structure device. Background Technology

[0002] The DC-DC control module is a core component of an energy storage system, responsible for voltage conversion, power regulation, and safety control between the battery pack and the load. Currently, existing energy storage DC-DC control modules suffer from the following technical defects: Insufficient mechanical protection: Traditional control modules lack independent enclosure protection, leaving the PCBA directly exposed to the external environment. They lack effective protection against dust and liquids and have no dedicated impact or vibration-resistant structural design. During transportation, installation, or outdoor use, collisions and vibrations can easily cause PCBA solder joints to detach and components to be damaged, severely impacting module reliability. Poor thermal management performance: Without an independent enclosure, the heat dissipation path is unclear. Heat generated during PCBA operation cannot be quickly dissipated, leading to internal temperature accumulation. This not only reduces the efficiency of electronic components but also accelerates component aging and shortens module lifespan, especially in high-power output scenarios where overheating is more pronounced. Weak electromagnetic compatibility (EMC): Exposed structure... The lack of electromagnetic shielding means that the electromagnetic radiation generated during module operation can interfere with the normal operation of surrounding electronic devices. Simultaneously, the external electromagnetic environment can affect the module's control accuracy, leading to voltage fluctuations and unstable output. Installation and maintenance are cumbersome: existing modules lack standardized fixed structures and connection interfaces, requiring separately designed mounting brackets for installation, resulting in poor adaptability and low installation efficiency. Maintenance necessitates disassembling the entire energy storage device's casing and then separating the circuits and components one by one, a complex and time-consuming process that increases equipment downtime. Furthermore, the existing technology integrates the control module with other components without compact optimization, resulting in a large overall size and weight. This not only occupies significant internal space in the energy storage device but also limits its application in portable and mobile energy storage scenarios, increasing equipment handling and deployment costs.

[0003] Therefore, developing an energy storage DC-DC control module structure device with efficient protection, compact structure, convenient installation and maintenance, and excellent comprehensive performance has become a key requirement to solve the pain points of existing technologies. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a structure for an energy storage DC-DC control module, which solves the problems of insufficient protection performance, low heat dissipation efficiency, and complex installation and maintenance of energy storage DC-DC control modules.

[0005] A structure device for an energy storage DC-DC control module includes: a first connector, a fixing bracket, a module housing, a sealing ring, a module PCBA, a second connector, and a module cover. The components work together to form an integrated, compact, and maintainable functional unit.

[0006] Preferably, the module housing is made of aluminum alloy, which combines high strength and excellent thermal conductivity. This provides reliable mechanical support for the module as a whole and also serves as a heat dissipation carrier to dissipate heat from inside the module. The module housing has a compact rectangular parallelepiped structure with an internal mounting groove that precisely matches the module PCBA. The groove wall has positioning protrusions for engaging with the positioning holes of the module PCBA, ensuring accurate positioning of the module PCBA and preventing displacement during operation. The edge of the module housing has a U-shaped sealing groove for embedding a sealing ring to achieve a sealed protection. The two sides of the module housing have standardized mounting ears with oblong holes that accommodate mounting bolts of different sizes, improving the module's installation compatibility.

[0007] Preferably, the fixing bracket is made of fiberglass, which has good damping characteristics and structural strength. The fixing bracket has four evenly distributed locking holes, which are locked at multiple points by internal hexagonal bolts to the built-in threaded post of the module shell, ensuring a stable connection between the fixing bracket and the module shell. An elastic buffer pad is attached to the bottom of the fixing bracket. The elastic buffer pad is used to absorb impact force in the vibration environment and reduce the resonance risk of the module PCBA.

[0008] Optionally, the elastic cushioning pad is made of polyurethane material with a thickness of 2-3mm.

[0009] Preferably, the sealing ring is made of fluorosilicone rubber, which has the characteristics of high and low temperature resistance, aging resistance and excellent sealing performance. The cross-section of the sealing ring is designed to be elliptical. After being embedded in the U-shaped sealing groove of the module shell, it can fit tightly with the module cover to form a full-circumference sealing structure, which can effectively block dust intrusion and liquid penetration within 30 minutes at a depth of 1 meter underwater.

[0010] Preferably, the module cover is made of the same aluminum alloy as the module shell to ensure structural consistency and thermal continuity; the outer surface of the module cover is integrally formed with an array of heat dissipation fins to increase the heat dissipation area and improve heat dissipation efficiency; the module cover and the module shell are fixed by a double method of buckle + auxiliary screw, the buckle structure facilitates quick disassembly, and the auxiliary screw enhances sealing reliability, and the disassembly method can be flexibly selected according to the usage scenario.

[0011] Optionally, the height of the heat dissipation fins is 5-8mm, and the fin spacing is preferably 3-5mm.

[0012] The connector includes a first connector and a second connector, both of which are waterproof quick connectors and have a mis-insertion prevention guide structure to avoid reversed positive and negative poles or signal interfaces; the interface of the connector is equipped with a dustproof sealing cover to protect the interface from contamination when not connected; the connector is fixed to the module PCBA by welding to ensure a stable connection.

[0013] Optionally, the connector has a mating life of no less than 500 cycles and a contact resistance of ≤10mΩ to ensure the stability and service life of the electrical connection.

[0014] The module PCBA adopts a high-density wiring design, reducing the PCB size while ensuring functional integration, thus achieving a compact module design. The edge of the module PCBA has positioning holes that fit with the positioning protrusions of the module housing mounting slot, and is fixed in the mounting slot by threaded connection. The module PCBA integrates a remote diagnostic unit and firmware upgrade interface, supporting remote communication via Bluetooth, Wi-Fi, or wired Ethernet, and can realize fault early warning, real-time monitoring of operating parameters, fault diagnosis, and online firmware update functions.

[0015] The technical solutions provided by the embodiments of the present invention can include the following beneficial effects: the compact structural design reduces the module size compared with existing similar products and controls the weight to within 1.5kg, which greatly reduces the space occupation and transportation cost of energy storage equipment. It is not only suitable for fixed energy storage power stations, but can also be flexibly applied to mobile energy storage scenarios such as portable energy storage power supplies, mobile charging stations, and vehicle-mounted energy storage systems, effectively expanding the market application scope of the product.

[0016] The high-strength aluminum alloy shell and fluorosilicone rubber sealing ring form an IP67-level protection structure, which completely solves the problem of traditional modules being susceptible to dust and liquid corrosion. The multi-point locking bracket and the bottom polyurethane buffer pad work together to disperse external impact force and absorb vibration energy, effectively reducing the resonance risk of the module PCBA. In vibration environments such as vehicle and outdoor environments, the module failure rate is reduced and the service life is extended to more than 8 years.

[0017] The array of heat dissipation fins on the module shell and the top cover form a complete heat dissipation path. The heat generated when the module PCBA is working is conducted to the shell through the mounting slot, and then quickly dissipated to the external environment through the heat dissipation fins. Compared with traditional shellless modules, the heat dissipation efficiency is improved, and the module operating temperature is reduced by 15-25℃, effectively avoiding performance degradation or shutdown due to overheating, and ensuring that the module continues to operate stably in high-power scenarios.

[0018] The integrated aluminum alloy shell forms a natural electromagnetic shield, which can not only block the leakage of electromagnetic radiation from inside the module, but also isolate external electromagnetic interference, so that the electromagnetic radiation limit of the module meets the national standards and the electromagnetic immunity reaches level 4 or above. This ensures that the module can work normally in complex electromagnetic environments such as industrial scenarios and multi-device collaboration, and the control accuracy error is reduced to within ±0.5%.

[0019] The standardized mounting ears and waist-shaped hole design allow the module to quickly adapt to the installation requirements of different energy storage devices, reducing installation time to less than 10 minutes. The top cover fixing method with clips and auxiliary screws, combined with waterproof quick connectors, enables plug-and-play maintenance of the module. PCBA replacement takes only 5 minutes, which is a significant reduction in maintenance time compared to traditional modules. Remote diagnostics and firmware upgrade functions can complete fault diagnosis and system upgrades without on-site module disassembly, further reducing operation and maintenance costs and minimizing equipment downtime losses.

[0020] The integrated structural design reduces connection nodes and lowers the risk of poor contact; each component is made of aging-resistant, high-strength materials, ensuring strong structural stability during long-term use and reducing aging and loosening issues; the modular design facilitates mass production and reduces manufacturing costs; standardized interfaces and adaptability design enable the modules to be compatible with different specifications of energy storage battery packs, improving product versatility and enhancing market competitiveness. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the outer shell structure of the module of the present invention; Figure 3 is a schematic diagram of the upper cover structure of the module of the present invention.

[0022] In the figure, the correspondence between the component names and the attached drawing numbers is as follows: 1. First connector; 2. Fixing bracket; 3. Module shell; 4. Sealing ring; 5. Module PCBA; 6. Second connector; 7. Module top cover. Detailed Implementation

[0023] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0024] Please refer to Figures 1-3. This invention provides an energy storage DC-DC control module structure device, including a first connector 1, a fixing bracket 2, a module shell 3, a sealing ring 4, a module PCBA 5, a second connector 6, and a module cover 7. The components are precisely matched to form an integrated, highly reliable functional module. The specific implementation details are as follows: The module shell 3 is made of aluminum alloy. After T6 heat treatment, the tensile strength of this material can reach 290MPa. It has both excellent structural strength and thermal conductivity, which fully meets the dual requirements of mechanical protection and thermal management. At the same time, the shell is formed by high pressure die casting process. After forming, the shell has a compact design with a length of 180mm, a width of 120mm, and a height of 60mm, which is more than 30% smaller in volume than existing similar products.

[0025] The mounting slot inside the module housing 3 is designed with a 0.1-0.2mm gap to fit the module PCBA5. Two positioning protrusions with a height of 3mm are symmetrically set on the slot wall. The top of the protrusions is rounded, which facilitates the quick positioning and installation of the module PCBA5 and avoids scratching the edge circuit of the PCBA. The positioning protrusions are precisely matched with the positioning holes on the edge of the module PCBA5, effectively limiting the horizontal displacement of the PCBA.

[0026] The module housing 3 has a U-shaped sealing groove with a width of 5mm and a depth of 3mm around its edge to ensure that the sealing ring 4 fits snugly without gaps after being inserted. The two sides of the housing are integrally formed with standardized mounting ears. The mounting ears are 8mm thick and have a waist-shaped hole with a length of 15mm and a width of 8mm. The inner wall of the waist-shaped hole is chamfered to accommodate mounting bolts of M5-M8 specifications. The adjustment margin of the waist-shaped hole can compensate for the hole position deviation of the mounting surface, making it compatible with different installation scenarios such as fixed energy storage power stations, vehicle-mounted energy storage systems, and portable energy storage devices.

[0027] The fixed bracket 2 is made of glass fiber reinforced material and has excellent damping characteristics, which can effectively absorb vibration energy. The bracket is formed by precision injection molding process, with the molding temperature controlled at 230-250℃ and the holding pressure at 80-100MPa, to ensure that the bracket structure is dense and free from defects such as shrinkage cavities and bubbles.

[0028] The fixed bracket 2 is designed to be 5mm thick, with four symmetrical locking holes of 4mm diameter at the four corners. These holes precisely correspond to the four M4 internal threaded posts pre-installed inside the module housing 3. Multi-point locking is achieved through M4 hexagonal head bolts, which ensures a firm connection while preventing the bracket from deforming due to overtightening of the bolts.

[0029] The bottom of the fixed bracket 2 is bonded with a 2mm thick polyurethane elastic buffer pad through in-mold injection molding. The surface of the buffer pad is pressed with a diamond-shaped anti-slip texture, which not only increases the friction with the module PCBA5 and prevents the module PCBA5 from sliding, but also absorbs the impact force through elastic deformation in the vibration environment. Tests have shown that it can reduce the resonance amplitude of the module PCBA5 by more than 70%, significantly improving the reliability of the module in harsh environments such as vehicle and outdoor transportation.

[0030] The sealing ring 4 is made of fluorosilicone rubber, which can maintain excellent elasticity in a wide temperature range of -40℃ to 120℃ and has the characteristics of oil resistance, aging resistance and UV resistance. Its service life can reach more than 8 years. The sealing ring cross-section is designed as an ellipse. Compared with the circular cross-section, the elliptical structure has a larger contact area with the sealing groove and the module cover 7 after compression, resulting in higher sealing reliability.

[0031] The circumference of the sealing ring 4 is precisely matched with the U-shaped sealing groove of the module housing 3. When it is embedded in the sealing groove during assembly, it protrudes 1mm above the groove opening. When the module cover 7 is pressed, the sealing ring 4 is compressed to 3.5mm, forming a sealing structure with no dead corners around the entire circumference. It can effectively block the intrusion of dust particles with a diameter ≥0.075mm, fully meeting the usage requirements of harsh environments such as outdoor and humid environments.

[0032] The module cover 7 and the module shell 3 are made of the same aluminum alloy material and are formed by stamping and CNC precision machining. The cover is 5mm thick and has an integrated array of heat dissipation fins on the outer surface. Compared with the cover without fins, the heat dissipation efficiency is greatly improved.

[0033] The edge of the module cover 7 adopts a dual fixing structure of buckles and auxiliary screws. Four elastic buckles are evenly distributed on both sides of the cover. The buckle head is designed with a guide surface at an angle of 30° to facilitate quick engagement and positioning with the slot of the module housing 3. Four M3 screw holes are symmetrically distributed at the four corners of the cover. The cover is fixed to the module housing 3 with M3 screws. When fixed by buckles alone, the disassembly time is ≤10 seconds. If a complete seal is required, the screws can be added and the disassembly can still be completed within 1 minute, meeting the maintenance needs of different scenarios.

[0034] Both the first connector 1 and the second connector 6 are WEIPUSP21 series waterproof quick connectors. This series of connectors meets the IP67 protection standard and has advantages such as anti-misinsertion, anti-dislodgement, and low contact resistance. The connector adopts a push-pull locking structure and has a built-in anti-misinsertion guide key, which can completely avoid module damage caused by reverse polarity or signal interface mismatch. The interface is equipped with a silicone dustproof sealing cover made of methyl vinyl silicone rubber, which can effectively prevent dust and moisture from entering the interface when not connected.

[0035] The first connector 1 and the second connector 6 are all fixed to the module PCBA5 by wave soldering. The soldering temperature is controlled at 250-260℃ and the soldering time is 3-5 seconds to ensure that the solder joints are full and there are no cold solder joints. The assembly can only be carried out after the soldering is qualified by AOI inspection.

[0036] The PCBA5 module uses an FR-4 epoxy resin glass cloth substrate with a thickness of 1.6mm, which has excellent mechanical strength and insulation performance. The PCBA adopts a high-density wiring design with separate layout for strong and weak current lines to avoid electromagnetic interference. Two 3.1mm diameter positioning holes are symmetrically opened on the edge of the PCBA, which precisely match the positioning protrusions on the module shell 3. It is fixed in the mounting slot by four M2.5 screws, with the screw heads flush with the PCBA surface to avoid interfering with other components.

[0037] The PCBA integrates core and auxiliary functional units. The core unit includes a DC-DC conversion circuit, a sampling circuit, and a protection circuit. The auxiliary unit includes a remote diagnostic unit, which uses an ESP32-C3 chip and supports Bluetooth 5.0, Wi-Fi, and wired Ethernet communication, as well as a firmware upgrade interface. The interface includes a Type-C interface, compatible with the USB 2.0 protocol. The remote diagnostic unit can collect module operating parameters in real time, such as input voltage, output current, and operating temperature, and upload them to the terminal device through the communication module to realize fault warning and remote parameter adjustment. The firmware upgrade interface supports both local upgrade and remote online upgrade modes, and has a breakpoint resume function during the upgrade process to avoid module paralysis due to upgrade failure.

[0038] The assembly process of this module strictly follows the principles of precise positioning, sequential assembly, uniform pressure, and closed-loop testing. The specific assembly steps are as follows: For the assembly of sealing ring 4, insert sealing ring 4 clockwise along the U-shaped sealing groove of the module shell 3. During the insertion process, use a special tool to assist in pressing to ensure that sealing ring 4 is completely in contact with the groove wall, without twisting or wrinkling, and protrudes 1mm above the groove opening. After assembly, visual inspection is used to confirm the fit between the sealing groove and sealing ring 4. Defective products are prohibited from entering the next process.

[0039] For fixed bracket assembly, place the fixed bracket 2 inside the module housing 3, aligning the locking hole of the bracket with the internal threaded post of the housing. Use a torque wrench to tighten the four M4 hex bolts in sequence, alternating diagonally, to ensure the bracket is installed flat.

[0040] For PCBA assembly, align the positioning holes of module PCBA5 with the positioning protrusions of module housing 3, and slowly place it into the mounting slot so that the lower surface of PCBA fits tightly against the buffer pad of the fixing bracket 2. Use a torque screwdriver to tighten the four M2.5 countersunk screws in sequence, alternating diagonally, to ensure that the PCBA is firmly fixed without loosening or warping.

[0041] Connector soldering and inspection: The pins of the first connector 1 and the second connector 6 are inserted into the corresponding pads of the PCBA and soldered using wave soldering equipment. After soldering, AOI inspection is performed to check for defects such as cold solder joints and solder bridges. At the same time, the continuity between the connector and the PCBA circuit is tested using a multimeter.

[0042] For the top cover assembly, align the module top cover 7 with the module housing 3. First, use the edge clips to snap it in place to ensure that the top cover fits tightly with the housing. Then, use a torque screwdriver to tighten the four M3 screws in sequence, alternating diagonally to ensure uniform sealing pressure and avoid uneven force on the sealing ring 4, which could lead to sealing failure.

[0043] After assembly, the module undergoes comprehensive performance testing.

[0044] The energy storage DC-DC control module structure device of this embodiment has been verified by actual application and has the following significant effects: The compact structural design reduces the module size compared with existing similar products and controls the weight to within 1.5kg, which greatly reduces the space occupation and transportation cost of energy storage equipment. It is not only suitable for fixed energy storage power stations, but can also be flexibly applied to mobile energy storage scenarios such as portable energy storage power supplies, mobile charging stations, and vehicle-mounted energy storage systems, effectively expanding the market application scope of the product.

[0045] The high-strength aluminum alloy shell and fluorosilicone rubber sealing ring 4 form an IP67-level protection structure, which completely solves the problem of traditional modules being susceptible to dust and liquid corrosion. The multi-point locking bracket 2 and the bottom polyurethane buffer pad work together to disperse external impact force and absorb vibration energy, effectively reducing the resonance risk of the module PCBA5. In vibration environments such as vehicle and outdoor environments, the module failure rate is reduced and the service life is extended to more than 8 years.

[0046] The array of heat dissipation fins of the module housing 3 and the module top cover 7 form a complete heat dissipation path. The heat generated when the module PCBA5 is working is conducted to the housing through the mounting slot, and then quickly dissipated to the external environment through the heat dissipation fins. Compared with traditional housingless modules, the heat dissipation efficiency is improved, and the module operating temperature is reduced by 15-25℃, effectively avoiding performance degradation or shutdown due to overheating, and ensuring that the module continues to operate stably in high-power scenarios.

[0047] The integrated aluminum alloy shell forms a natural electromagnetic shield, which can not only block the leakage of electromagnetic radiation from inside the module, but also isolate external electromagnetic interference, so that the electromagnetic radiation limit of the module meets the national standards and the electromagnetic immunity reaches level 4 or above. This ensures that the module can work normally in complex electromagnetic environments such as industrial scenarios and multi-device collaboration, and the control accuracy error is reduced to within ±0.5%.

[0048] The standardized mounting ears and waist-shaped hole design allow the module to quickly adapt to the installation requirements of different energy storage devices, reducing installation time to less than 10 minutes. The top cover fixing method with clips and auxiliary screws, combined with waterproof quick connectors, enables plug-and-play maintenance of the module. PCBA replacement takes only 5 minutes, which is a significant reduction in maintenance time compared to traditional modules. Remote diagnostics and firmware upgrade functions can complete fault diagnosis and system upgrades without on-site module disassembly, further reducing operation and maintenance costs and minimizing equipment downtime losses.

[0049] The integrated structural design reduces connection nodes and lowers the risk of poor contact; each component is made of aging-resistant, high-strength materials, ensuring strong structural stability during long-term use and reducing aging and loosening issues; the modular design facilitates mass production and reduces manufacturing costs; standardized interfaces and adaptability design enable the modules to be compatible with different specifications of energy storage battery packs, improving product versatility and enhancing market competitiveness.

[0050] This embodiment comprehensively addresses the technical shortcomings of existing energy storage DC-DC control modules, such as insufficient mechanical protection, poor heat dissipation, weak EMC performance, cumbersome installation and maintenance, and excessive size, by optimizing the material selection, structural design, process optimization, and assembly quality control of each component. It provides a high-performance, high-reliability, and highly applicable control module solution for energy storage systems.

[0051] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A structure device for an energy storage DC-DC control module, characterized in that: The module includes a housing (3), with fixed brackets (2) on both the left and right sides. A first connector (1) is provided on the left side of the housing (3), and a second connector (6) is provided on the right side of the housing (3). A module cover (7) is provided on the housing (3). A sealing ring (4) and a module PCBA (5) are provided inside the housing (3). The housing (3) is made of high-strength alloy material and has an installation groove inside that is adapted to the installation of the module PCBA (5). The groove wall has a limiting structure. The fixed brackets (2) are assembled inside the housing (3) and are fixedly connected to the housing (3) by a multi-point locking method to support and position the module PCBA (5).

2. The energy storage DC-DC control module structure device as described in claim 1, characterized in that, The sealing ring (4) is embedded in the joint between the module shell (3) and the module cover (7) to form a full circumferential sealing structure.

3. The energy storage DC-DC control module structure device as described in claim 2, characterized in that, The module cover (7) is detachably connected to the module shell (3).

4. The energy storage DC-DC control module structure device as described in claim 3, characterized in that, The module PCBA (5) is fixed in the mounting slot by threaded connection and is electrically connected to the first connector (1) and the second connector (6) respectively. The first connector (1) and the second connector (6) are both waterproof quick connectors.

5. The energy storage DC-DC control module structure device as described in claim 4, characterized in that, The module housing (3) is made of aluminum alloy, and the wall of the mounting groove is provided with at least two positioning protrusions, which are adapted to the edge positioning holes of the module PCBA (5).

6. The energy storage DC-DC control module structure device as described in claim 5, characterized in that, The fixed bracket (2) is made of fiberglass and has four evenly distributed locking holes. It is locked to the built-in threaded post of the module shell (3) by internal hex bolts. The bottom of the bracket is provided with an elastic buffer pad.

7. The energy storage DC-DC control module structure device as described in claim 6, characterized in that, The sealing ring (4) is made of fluorosilicone rubber with an elliptical cross section, and is embedded in the U-shaped sealing groove opened on the edge of the module shell (3).

8. The energy storage DC-DC control module structure device as described in claim 7, characterized in that, The module cover (7) is connected to the module shell (3) by a double fixation of buckle and auxiliary screw. The outer surface of the module cover (7) is integrally formed with an array of heat dissipation fins.

9. The energy storage DC-DC control module structure device as described in claim 8, characterized in that, Both the first connector (1) and the second connector (6) are equipped with anti-misinsertion guide structures and dustproof sealing covers.

10. The energy storage DC-DC control module structure device as described in claim 9, characterized in that, The outer surface of the module housing (3) is provided with standardized mounting ears, and the mounting ears are provided with waist-shaped holes.