Metal shell structure for module power supply

By introducing high thermal conductivity side plates and heat dissipation fins into the metal casing of the modular power supply, and utilizing an electromagnetically controlled movable baffle design, the problem of insufficient heat dissipation under high power density is solved, achieving efficient heat dissipation and protection, and improving the stability and reliability of the equipment.

CN223872629UActive Publication Date: 2026-02-03SHENZHEN XINBAOXIN HARDWARE PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202520174697.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-26
Publication Date
2026-02-03
Estimated Expiration
2035-01-26

AI Technical Summary

Technical Problem

The metal casing of existing modular power supplies is not efficient enough in heat dissipation in high power density applications, which leads to abnormally high internal temperatures, affecting the stability and lifespan of the equipment. At the same time, there is a lack of effective protection measures.

Method used

A metal shell structure was designed, including a high thermal conductivity side plate and heat dissipation fins. Combined with an intelligent movable baffle and electromagnetic control, it achieves efficient heat dissipation and automatically closes the air outlet to prevent dust from entering when not powered on, and opens the air outlet to dissipate heat when powered on.

Benefits of technology

It significantly improves heat dissipation efficiency, ensures that the internal temperature of the equipment is within a safe range, enhances protective performance, reduces the risk of pollution and corrosion, and improves the stability and reliability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a metal housing structure used for a module power supply, comprising a housing body, the housing body comprises a support frame structure and high heat conduction side plates arranged on two sides of the support frame structure, and the outer side walls of the high heat conduction side plates are uniformly provided with heat radiation fins. The supporting frame structure is further provided with a first air inlet hole and a second air inlet hole. The inner side of the first air inlet hole and the inner side of the second air inlet hole are each provided with an air inlet fan. And the top plate assembly is arranged on the inner side of the mounting groove with the opening in the top of the supporting frame structure, the top plate assembly comprises air outlets and a cavity which are evenly arranged, and a movable assembly is mounted in the cavity. When the power module is powered on, the electromagnetic block generates magnetic force to attract the attraction piece and drive the connecting rod to move, so that the baffle moves to one side of the air outlet, the air outlet is exposed, convection heat dissipation is achieved, and unstable performance or faults caused by too high temperature are avoided.
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Description

Technical Field

[0001] This utility model relates to the field of metal casing technology, specifically a metal casing structure for a modular power supply. Background Technology

[0002] In current common modular power supply designs, metal casings are widely adopted to provide necessary mechanical protection and electromagnetic shielding. However, this long-standing architectural approach still reveals several shortcomings, particularly in terms of heat dissipation and the completeness of protective measures. Specifically, traditional metal casings are often limited to simple heat sink configurations or rely solely on natural convection for heat dissipation. This approach proves inadequate for high-power-density module applications. The resulting abnormal temperature rise inside the device not only threatens operational stability but also adversely affects its expected lifespan. Utility Model Content

[0003] The purpose of this invention is to provide a metal casing structure for a modular power supply to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a metal casing structure for a modular power supply, comprising...

[0005] The outer shell body includes a support frame structure and high thermal conductivity side plates disposed on both sides of the support frame structure. The outer side walls of the high thermal conductivity side plates are uniformly provided with heat dissipation fins. The support frame structure is also provided with a first air inlet and a second air inlet. An air intake fan is installed on the inner side of both the first air inlet and the second air inlet.

[0006] A top plate assembly is disposed inside the mounting groove of the top opening of the supporting frame structure, and the top plate assembly includes evenly distributed air outlets and cavities, and a movable component is installed inside the cavity;

[0007] The movable component includes connecting rods mounted on both sides of the cavity via support sleeves. Support plate one and support plate two are respectively provided at both ends of the two connecting rods. Support plate one is connected to the inner wall of one end of the cavity via a return spring. A suction plate is provided on the outer side of support plate two. Electromagnetic blocks are installed on the inner wall of the other end of the cavity at positions corresponding to the suction plates. Baffles are evenly arranged between the two connecting rods via bait blocks. The baffles correspond one-to-one with the air outlet.

[0008] Furthermore, U-shaped slots are provided on the support frame structure on the outer side of the first and second air inlets, and dustproof mesh covers are installed on the inner side of both U-shaped slots.

[0009] Furthermore, the support frame structure also includes a support base plate disposed at the bottom of the support frame structure, and spring assemblies are uniformly disposed below the support base plate, with both ends of the spring assemblies being fixedly connected to the support frame structure and the support base plate, respectively.

[0010] Furthermore, the spring assembly includes a plate connected to the support frame structure and the support base plate, and a spring disposed between the two plates, with a damping telescopic rod disposed between the two plates inside the spring.

[0011] Furthermore, the top plate assembly is provided with snap-fit ​​strips on both sides that match the mounting groove, and a locking bolt is provided at the top of the mounting groove, with the top end of the locking bolt penetrating the mounting groove and fitting against the snap-fit ​​strip.

[0012] This utility model relates to a metal casing structure for a modular power supply, which has significant advantages and positive effects compared to the prior art, specifically in the following aspects:

[0013] 1. Improve heat dissipation efficiency:

[0014] This invention significantly increases the heat dissipation surface area by incorporating a high thermal conductivity side plate on the frame side and evenly arranging heat dissipation fins on the outer side of the heat-conducting side plate. This design effectively improves heat dissipation efficiency, ensuring that the temperature of internal components can be effectively controlled during long-term operation of the power module, avoiding performance degradation or damage caused by overheating. Compared with traditional single heat dissipation methods, this invention achieves more efficient heat dissipation through a multi-layered heat dissipation structure, extending the service life of the power module.

[0015] 2. Enhanced protective performance:

[0016] When the power module is not powered, the electromagnetic block is de-energized and does not generate magnetic force. The connecting rod, under the action of the return spring, moves the baffle to the inside of the air outlet, automatically closing the outlet. This design not only effectively prevents dust, foreign objects, and other impurities from entering the power module, reducing the risk of contamination and corrosion of internal components, but also improves the overall protection performance of the equipment. Compared to existing air outlet designs that require manual closing or lack effective protective measures, this invention has significant advantages in protective performance.

[0017] 3. Improve equipment stability and reliability:

[0018] When the power module is powered on, the electromagnetic block generates magnetic force, attracting the suction plate and moving the connecting rod to move the baffle to the air outlet side, exposing the air outlet and achieving convection cooling. This design ensures that the temperature of the internal components of the power module is always kept within a safe range, avoiding performance instability or failure due to excessive temperature, thus significantly improving the stability and reliability of the equipment. Compared with the potential problems of uneven heat dissipation or low heat dissipation efficiency in existing technologies, this invention ensures efficient operation of the equipment through intelligent heat dissipation control.

[0019] 4. Optimize air duct design to reduce pollution risk:

[0020] When the air outlet is open, the airflow from the intake fan is expelled upwards from the outlet, preventing dust, foreign objects, and other impurities from entering the housing. This airflow design not only further reduces the risk of internal components being contaminated and corroded but also optimizes the airflow path and improves heat dissipation. Compared to existing technologies that may have unreasonable airflow designs and be prone to dust accumulation, this invention excels in both airflow design and pollution prevention.

[0021] In summary, this utility model has significant advantages and positive effects compared to existing technologies in terms of improving heat dissipation efficiency, enhancing protective performance, improving equipment stability and reliability, optimizing air duct design, and innovating technical concepts. These beneficial effects not only stem directly from the technical features of this utility model, but also highly align with the technical problems and solutions it aims to solve, fully demonstrating the technological advancement and practical value of this utility model. Attached Figure Description

[0022] Figure 1 This is a top view of the structure of this utility model;

[0023] Figure 2 This is a bottom view of the top plate assembly of this utility model;

[0024] Figure 3 This is a schematic diagram of the main structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the internal structure of the present invention;

[0026] Figure 5 This is a side view of the structure of this utility model;

[0027] In the diagram: 1. Outer shell; 101. Support frame structure; 102. High thermal conductivity side plate; 103. First air inlet; 104. Support base plate; 105. Heat dissipation fins; 106. Second air inlet; 2. Dustproof mesh cover; 3. U-shaped slot; 4. Spring assembly; 5. Mounting slot; 6. Snap-fit ​​strip; 7. Inlet fan; 8. Top plate assembly; 801. Cavity; 802. Air outlet; 803. Support sleeve; 9. Movable assembly; 901. Connecting rod; 902. Baffle; 903. Bait block; 904. Support plate one; 905. Support plate two; 10. Locking bolt; 11. Electromagnetic block; 12. Return spring; 13. Suction plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] Please see Figure 1-5 This utility model provides an embodiment: a metal casing structure for a modular power supply, comprising...

[0030] The outer shell body 1 includes a support frame structure 101 and high thermal conductivity side plates 102 disposed on both sides of the support frame structure 101. Heat dissipation fins 105 are uniformly disposed on the outer side wall of the high thermal conductivity side plates 102. The support frame structure 101 is also provided with a first air inlet 103 and a second air inlet 106 respectively. An air intake fan 7 is installed on the inner side of both the first air inlet 103 and the second air inlet 106.

[0031] The supporting frame structure 101 forms the foundation of the entire heat dissipation device. It is made of high-strength metal to ensure the stability and durability of the overall structure. It is a rectangular frame with reinforcement structures at the four corners to enhance its resistance to deformation.

[0032] The high thermal conductivity side plate 102 is made of a material with high thermal conductivity, such as aluminum or copper, to achieve efficient heat conduction. Each high thermal conductivity side plate 102 is 5-10 mm thick to ensure sufficient strength and thermal conductivity.

[0033] The heat dissipation fins 105 are made of thin metal sheets, with a thickness of 1-2 mm and a height of 20-30 mm, and are evenly spaced to increase the heat dissipation area and improve heat dissipation efficiency. The heat dissipation fins 105 are fixed to the high thermal conductivity side plate 102 by welding or bonding to ensure a firm and reliable connection.

[0034] The first air inlet 103 is located on the front side of the supporting frame structure 101, and the second air inlet 106 is located on the rear side. Each air inlet ensures sufficient air intake.

[0035] The intake fan 107 is driven by a DC brushless motor with adjustable speed to adapt to different heat dissipation requirements. The intake fan 107 is mounted inside the air intake vent via a mounting bracket.

[0036] Specifically, when the heat source inside the device generates heat, the heat is transferred to the high thermal conductivity side plate 102 through the contact surface. Because the high thermal conductivity side plate 102 is made of a material with high thermal conductivity, the heat is rapidly and evenly distributed throughout the entire side plate.

[0037] The high thermal conductivity side plate 102 transfers heat to the outer heat dissipation fins 105. The heat dissipation fins 105 increase the surface area, accelerating the convective heat transfer between heat and the surrounding air, thereby achieving efficient heat dissipation.

[0038] After the intake fan 107 is started, external cold air is drawn into the device through the first air inlet 103 and the second air inlet 106.

[0039] The top plate assembly 8 is located inside the mounting groove 5 with the top opening of the supporting frame structure 101. The top plate assembly 8 is also provided with snap-fit ​​strips 6 on both sides that match the mounting groove 5. The top of the mounting groove 5 is also provided with locking bolts 10, and the top of the locking bolts 10 penetrates the mounting groove 5 and fits against the snap-fit ​​strips 6.

[0040] The roof panel assembly 8 mainly consists of the roof panel body and the snap-fit ​​strips 6 on both sides. The roof panel body is made of high-strength material to ensure its durability and load-bearing capacity during use.

[0041] Top plate body: The surface of the top plate body is flat and the edges are finely processed to ensure a tight fit with the mounting groove 5.

[0042] Snap-fit ​​strip 6: A snap-fit ​​strip 6 is provided on each side of the top plate assembly 8. The shape of the snap-fit ​​strip 6 matches the inner wall of the mounting groove 5, specifically an L-shaped or T-shaped structure, to achieve a firm snap-fit ​​effect.

[0043] The mounting groove 5 is located at the top opening of the support frame structure 101, and its inner wall is provided with a groove that matches the snap-fit ​​strip 6. The top of the mounting groove 5 is also provided with a through hole for the locking bolt 10.

[0044] Groove: The shape of the groove matches the shape of the snap-fit ​​strip 6, ensuring that the snap-fit ​​strip 6 can be smoothly inserted and locked in place.

[0045] Locking bolt 10: The top end of the locking bolt 10 passes through the top of the mounting groove 5 and fits against the top of the snap-fit ​​strip 6. By rotating the locking bolt 10, the top plate assembly 8 can be locked and fixed.

[0046] The top plate assembly 8 includes evenly distributed air outlets 802 and cavities 801, and a movable component 9 is installed inside the cavity 801;

[0047] The active component 9 includes connecting rods 901 installed on both sides of the cavity 801 via support sleeves 803. Support plate 1 904 and support plate 2 905 are respectively provided at both ends of the two connecting rods 901. Support plate 1 904 is connected to the inner wall of one end of the cavity 801 via a return spring 12. A suction plate 13 is provided on the outer side of support plate 2 905. Electromagnetic blocks 11 are installed on the inner wall of the other end of the cavity 801 at the positions corresponding to the suction plate 13. Baffles 902 are evenly arranged between the two connecting rods 901 via bait blocks 903. The baffles 902 correspond one-to-one with the air outlets 802.

[0048] Support sleeve 803: The support sleeve 803 is installed on both sides inside the cavity 801 and serves to fix and support other components.

[0049] Connecting rod 901: Two connecting rods 901 are installed on both sides inside the cavity 801 via support sleeves 803. Support plate 1 904 and support plate 2 905 are respectively provided at both ends of the connecting rods 901.

[0050] Support plate 904: Support plate 904 is located at one end of connecting rod 901 and is connected to the inner wall of one end of cavity 801 via return spring 12. The function of return spring 12 is to provide elastic force when connecting rod 901 is reset, ensuring that support plate 904 can return to its initial position.

[0051] Support plate 2 905: Support plate 2 905 is located at the other end of connecting rod 901, and a suction plate 13 is provided on its outer side. The suction plate 13 is used to interact with the electromagnetic block 11 to realize the movement of connecting rod 901.

[0052] Electromagnetic blocks 11: Two electromagnetic blocks 11 are installed on the inner wall of the other end of the cavity 801 at the position corresponding to the attracting plate 13. When the electromagnetic blocks 11 are energized, the magnetic field generated will attract the attracting plate 13, thereby driving the connecting rod 901 and the entire movable assembly 9 to move.

[0053] Baffle 902: Baffles 902 are evenly distributed between the two connecting rods 901 via bait blocks 903. The position of the baffles 902 corresponds one-to-one with the air outlet 802, ensuring that the baffles 902 can effectively cover or expose the air outlet 802 when the movable component 9 moves.

[0054] Action process

[0055] Initial state: In the initial state, the return spring 12 pulls the support plate 904 toward one end of the cavity 801, so that the entire movable component 9 is in the reset position. At this time, the baffle 902 covers the air outlet 802, preventing airflow.

[0056] Power-on activation: When the air outlet 802 needs to be opened, the electromagnetic block 11 is energized, generating a magnetic field that attracts the suction plate 13. Since the suction plate 13 is connected to the support plate 905, the support plate 905 drives the connecting rod 901 to move towards the electromagnetic block 11.

[0057] Movement process: As the connecting rod 901 moves, the baffle 902 gradually moves away from the air outlet 802, allowing air to circulate through the air outlet 802.

[0058] Power failure reset: When the electromagnetic block 11 is de-energized, the magnetic field disappears, and the elastic force of the reset spring 12 pulls the support plate 904 back to its initial position, causing the entire movable component 9 to reset. The baffle 902 then covers the air outlet 802 again, preventing airflow.

[0059] U-shaped slots 3 are provided on the support frame structure 101 on the outer side of the first air inlet 103 and the second air inlet 106, and dustproof mesh covers 2 are installed on the inner side of the two U-shaped slots 3.

[0060] The support frame structure 101 also includes a support base plate 104 disposed at the bottom of the support frame structure 101, and spring assemblies 4 are evenly disposed below the support base plate 104, with the two ends of the spring assemblies 4 being fixedly connected to the support frame structure 101 and the support base plate 104 respectively.

[0061] The spring assembly 4 includes a plate connected to the support frame structure 101 and the support base plate 104, and a spring disposed between the two plates. A damping telescopic rod is disposed between the two plates inside the spring.

[0062] The supporting frame structure 101 of this utility model is the main load-bearing component, and its exterior is provided with a first air inlet 103 and a second air inlet 106. In order to improve the dustproof effect of the air inlets, U-shaped slots 3 are respectively provided on the supporting frame structure 101 outside the first air inlet 103 and the second air inlet 106. The design of the U-shaped slots 3 allows for easy installation of the dustproof mesh cover 2 on its inner side. The dustproof mesh cover 2 is fixed by the slots, making it easy to disassemble and clean.

[0063] Specifically, the U-shaped slot 3 is U-shaped with its opening facing upwards, and its inner edge has a buckle structure. The edge of the dustproof mesh cover 2 has a corresponding slot matching structure, so that the dustproof mesh cover 2 can be firmly installed in the U-shaped slot 3. The dustproof mesh cover 2 is made of high-density fiber material, which can effectively filter dust particles in the air and ensure the cleanliness of the incoming air.

[0064] A support base plate 104 is provided at the bottom of the inner part of the support frame structure 101. The function of the support base plate 104 is to provide a stable support surface and ensure the stability of the entire structure. Spring assemblies 4 are evenly arranged below the support base plate 104. The two ends of the spring assemblies 4 are fixedly connected to the support frame structure 101 and the support base plate 104, respectively.

[0065] The spring assembly 4 includes a plate connected to the support frame structure 101 and the support base plate 104, and a spring disposed between the two plates. The plate is made of high-strength steel, which has good corrosion resistance and mechanical strength. The spring is made of stainless steel, which has high elasticity and durability.

[0066] A damping telescopic rod is installed between the two plates inside the spring. The function of the damping telescopic rod is to adjust the extension and contraction of the spring and provide stable support force.

[0067] When the device is powered on, the electromagnetic block 11 is activated, attracting the suction plate 13 and driving the connecting rod 901 of the movable component 9 to move. The connecting rod 901 drives the baffle 902 away from the air outlet 802. When the heat source generates heat, the heat is transferred to the high thermal conductivity side plate 102 through the contact surface. Because the high thermal conductivity side plate 102 is made of a high thermal conductivity material, heat is quickly and evenly distributed to the entire side plate. The high thermal conductivity side plate 102 transfers heat to the outer heat dissipation fins 105, accelerating the convective heat exchange between heat and the surrounding air, thereby achieving efficient heat dissipation. After the intake fan 107 is started, external cold air is drawn into the housing body 1 through the first air inlet 103 and the second air inlet 106. The air at both ends blows towards the middle heat source first, and then is discharged upward through the air outlet 802. At this time, dust, foreign objects and other impurities will not enter the housing from the air outlet 802. This air duct design not only further reduces the risk of internal components being contaminated and corroded, but also optimizes the air flow path and improves the heat dissipation effect. When the device is powered off, the electromagnetic block 11 loses its magnetism, the reset spring 12 pulls the movable component 9 back to the initial position, and the baffle 902 covers the air outlet 802 again, realizing the automatic closure of the air outlet. This not only effectively prevents dust, foreign objects and other impurities from entering the power module, reducing the risk of internal component contamination and corrosion, but also improves the overall protection performance of the equipment.

[0068] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0069] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0070] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0071] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A metal housing structure for a modular power supply, characterized in that: include The outer shell body (1) includes a support frame structure (101) and high thermal conductivity side plates (102) disposed on both sides of the support frame structure (101). The outer side wall of the high thermal conductivity side plate (102) is uniformly provided with heat dissipation fins (105). The support frame structure (101) is also provided with a first air inlet (103) and a second air inlet (106). An air intake fan (7) is installed on the inner side of both the first air inlet (103) and the second air inlet (106). Top plate assembly (8), the top plate assembly (8) is disposed inside the mounting groove (5) of the top opening of the support frame structure (101), and the top plate assembly (8) includes an air outlet (802) and a cavity (801) evenly arranged, and a movable component (9) is installed inside the cavity (801). The active component (9) includes connecting rods (901) installed on both sides of the cavity (801) via support sleeves (803). Support plate one (904) and support plate two (905) are respectively provided at both ends of the two connecting rods (901). Support plate one (904) is connected to the inner wall of one end of the cavity (801) via a return spring (12). A suction plate (13) is provided on the outer side of support plate two (905). Electromagnetic blocks (11) are installed at the positions corresponding to the suction plates (13) on the inner wall of the other end of the cavity (801). Baffles (902) are evenly provided between the two connecting rods (901) via bait blocks (903). The baffles (902) correspond one-to-one with the air outlets (802).

2. The metal casing structure for a modular power supply according to claim 1, characterized in that: U-shaped slots (3) are provided on the support frame structure (101) on the outside of the first air inlet (103) and the second air inlet (106), and dustproof mesh covers (2) are installed on the inner side of the two U-shaped slots (3).

3. The metal casing structure for a modular power supply according to claim 1, characterized in that: The support frame structure (101) also includes a support base plate (104) disposed at the bottom of the support frame structure (101), and spring assemblies (4) are uniformly disposed below the support base plate (104), with the two ends of the spring assembly (4) being fixedly connected to the support frame structure (101) and the support base plate (104) respectively.

4. The metal casing structure for a modular power supply according to claim 3, characterized in that: The spring assembly (4) includes a plate connected to the support frame structure (101) and the support base plate (104) and a spring disposed between the two plates. A damping telescopic rod is disposed between the two plates inside the spring.

5. A metal casing structure for a modular power supply according to claim 1, characterized in that: The top plate assembly (8) is also provided with snap-fit ​​strips (6) that match the mounting groove (5) on both sides, and a locking bolt (10) is provided at the top of the mounting groove (5). The top end of the locking bolt (10) passes through the mounting groove (5) and fits against the snap-fit ​​strip (6).