Automatic current-sharing switching power supply

Abstract

The utility model relates to the technical field of switching power supplies, and discloses an automatic current-sharing switching power supply, which comprises a mounting base, a copper heat dissipation piece, an automatic current-sharing switching circuit board, a shell, a clamping piece and a heat-conducting silica gel layer, and is characterized in that the automatic current-sharing switching circuit board is arranged in the top end of the mounting base; a copper heat dissipation piece is arranged in the bottom end of the mounting base, the copper heat dissipation piece penetrates through the interior of the mounting base, a heat conduction silica gel layer is evenly smeared between the automatic current-sharing switch circuit board and the top end of the copper heat dissipation piece, and the four corners of the automatic current-sharing switch circuit board are fixedly connected with the copper heat dissipation piece through adaptive bolts. The top end of the installation base is internally provided with four clamping pieces which are distributed in an axial symmetry mode, the top end of the installation base is provided with a shell, the shell is correspondingly connected with the installation base in a matched and clamped mode through the clamping pieces, according to the automatic current-sharing switching power supply, the overall heat dissipation efficiency and quality are greatly improved, disassembly and assembly are convenient, and the overhaul speed is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of switching power supply technology, specifically to an automatic current sharing switching power supply. Background Technology

[0002] In modern electronic devices and industrial systems, the demand for high-power electricity continues to rise. Traditional single-unit switching power supplies, limited by their power capacity, struggle to meet the high-power supply needs of scenarios such as data centers, electric vehicle charging facilities, and industrial automated production lines. Therefore, solutions involving multiple switching power supplies operating in parallel have emerged. By combining multiple power modules, the total power output of the power supply system can be significantly improved. However, when multiple power supplies are connected in parallel, due to the inherent differences in the characteristics of each power module, uneven current distribution can easily occur if not controlled. Some power modules may bear excessive current and become overloaded, shortening their lifespan or even causing damage. Automatic current sharing switching power supplies are advanced power conversion devices primarily used in multi-module power systems. They can automatically monitor and adjust the output current of each parallel power module, ensuring that the current borne by each module is evenly distributed. Through built-in current sharing control circuits and related algorithms, they collect the current information of each module in real time, analyze and process it, and then precisely adjust the output. This technology effectively solves the problem of uneven current distribution when multiple power supplies are connected in parallel, improving the overall performance, reliability, and stability of the power system. It is widely used in many fields with high power supply requirements, such as communications, industry, and medical applications.

[0003] Like most switching power supplies, automatic current sharing switching power supplies still generate a lot of heat during operation. This heat will seriously affect the normal operation and safety of the automatic current sharing switching power supply. Traditional power switches have defects in heat dissipation, and traditional switching power supplies require a lot of time to remove screws during maintenance and repair, which reduces the maintenance and repair speed. Therefore, we propose an automatic current sharing switching power supply. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an automatic current sharing switching power supply, which solves the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: an automatic current sharing switching power supply, comprising a mounting base, a copper heat sink, an automatic current sharing switch circuit board, a housing, clamping components, and a thermally conductive silicone layer. The automatic current sharing switch circuit board is located inside the top end of the mounting base, and the copper heat sink is located inside the bottom end of the mounting base. The copper heat sink passes through the interior of the mounting base. A thermally conductive silicone layer is evenly applied between the automatic current sharing switch circuit board and the top end of the copper heat sink. The four corners of the automatic current sharing switch circuit board are fixedly connected to the copper heat sink by adapter bolts. Four clamping components are symmetrically distributed on the top end of the mounting base. The housing is located at the top end of the mounting base, and the housing is correspondingly engaged with the mounting base by the clamping components.

[0008] Preferably, the top end of the mounting base is provided with two side blocks that are symmetrically distributed, and the opposite sides of the two side blocks are provided with symmetrically distributed U-shaped cavities. The bottom end of the U-shaped cavity is placed with a corresponding clamping component, and the side wall of the U-shaped cavity is a U-shaped opening structure, and the top end of the U-shaped cavity is an open structure.

[0009] Preferably, the top end of the mounting base has a mating groove, the center of which has a mating groove hole, and four connecting holes 3 are symmetrically distributed inside the mounting base. The bottom end of the mounting base has an arched structure, and two connecting holes 1 are symmetrically distributed on each of the two opposite sidewalls of the bottom end of the mounting base. The connecting holes 1 are fixedly connected to the mounting position by adapter screws.

[0010] Preferably, the copper heat sink has a top plate at its top end, which is connected to the mating groove, and a bottom plate at its bottom end. A connecting block is provided between the top plate and the bottom plate to connect with the mating groove hole. A set of equally spaced heat sink fins is provided at the bottom end of the bottom plate. Connecting holes two are provided at the four corners of the bottom plate, which correspond to connecting holes three. Connecting holes two are connected to the automatic current sharing switch circuit board through the connecting holes three by means of an adapter bolt.

[0011] Preferably, the outer shell is a hollow cuboid frame with an open bottom, and the side walls and top of the outer shell are provided with equidistant ventilation holes. The bottom ends of the two opposite side walls inside the outer shell are provided with four clamping blocks that are symmetrically distributed. The clamping blocks are connected to the U-shaped cavity. The side walls of the outer shell are provided with connection ports.

[0012] Preferably, the clamping component consists of two parts: two axially symmetrically distributed mating plates and three equidistantly distributed springs. The two mating plates are welded to the two ends of the springs, and the mating plate at the top of the clamping component is mated to the clamping block.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention provides an automatic current sharing switching power supply, which has the following beneficial effects:

[0015] 1. This automatic current sharing switching power supply has excellent heat dissipation performance, effectively ensuring stable operation of the power supply. The heat generated by the automatic current sharing switch circuit board can be efficiently transferred to the copper heat sink through the thermally conductive silicone layer. The top plate of the copper heat sink fits into the groove of the mounting base, and the heat dissipation fins on the bottom plate can increase the heat dissipation area. Furthermore, the copper heat sink is in an elevated state under the arched structure at the bottom of the mounting base, which facilitates air circulation. The ventilation holes on the outer shell further promote air circulation, greatly improving heat dissipation efficiency and preventing heat accumulation from affecting the normal operation of the automatic current sharing switch circuit board. This ensures the stability and safety of the power supply system and extends the service life of the power supply.

[0016] 2. This automatic current sharing switching power supply has significant advantages in installation and maintenance. It uses a clamping mechanism to achieve a secure connection between the mounting base and the housing. The clamping mechanism consists of a mating plate and a spring, and is always in a compressed state. The clamping block of the housing cooperates with the cavity. This design not only improves the connection quality but also facilitates disassembly. During maintenance and repair, there is no need to spend a lot of time removing screws as with traditional switching power supplies. The housing can be quickly opened for internal inspection and repair, effectively improving the speed of maintenance and repair, reducing maintenance costs, and increasing work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the automatic current sharing switching power supply structure of this utility model;

[0018] Figure 2 This is a side-wall cross-sectional view of the automatic current sharing switching power supply of this utility model;

[0019] Figure 3 This is an exploded structural diagram of the automatic current sharing switching power supply of this utility model;

[0020] Figure 4 This is a schematic diagram of the mounting base of this utility model;

[0021] Figure 5 This is a schematic diagram of the copper heat sink of this utility model;

[0022] Figure 6 This is a schematic diagram of the outer shell of this utility model;

[0023] Figure 7 This is a schematic diagram of the clamping component of this utility model.

[0024] In the diagram: 1. Mounting base; 2. Copper heat sink; 3. Automatic current sharing switch circuit board; 4. Housing; 5. Clamping component; 6. Thermally conductive silicone layer; 7. Side block; 8. U-shaped cavity; 9. Connection hole one; 10. Mating groove; 11. Mating groove hole; 12. Top plate; 13. Bottom plate; 14. Heat dissipation fins; 15. Connection hole two; 16. Connection hole three; 17. Clamping block; 18. Connection port; 19. Mating plate; 20. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-7 An automatic current sharing switching power supply includes a mounting base 1, a copper heat sink 2, an automatic current sharing switch circuit board 3, a housing 4, clamping parts 5, and a thermally conductive silicone layer 6. The automatic current sharing switch circuit board 3 is located inside the top end of the mounting base 1, and the copper heat sink 2 is located inside the bottom end of the mounting base 1. The copper heat sink 2 passes through the interior of the mounting base 1. A thermally conductive silicone layer 6 is evenly applied between the automatic current sharing switch circuit board 3 and the top end of the copper heat sink 2. The four corners of the automatic current sharing switch circuit board 3 are fixedly connected to the copper heat sink 2 by adapter bolts. The top end of the mounting base 1 has four clamping parts 5 distributed symmetrically on an axis. The top end of the mounting base 1 has a housing 4, which is correspondingly engaged with the mounting base 1 by the clamping parts 5.

[0027] Furthermore, the top end of the mounting base 1 is provided with two axially symmetrically distributed side blocks 7, and the opposite sides of the two side blocks 7 are provided with axially symmetrically distributed U-shaped cavities 8. The bottom end of the U-shaped cavity 8 is correspondingly placed with a clamping member 5, and the side wall of the U-shaped cavity 8 is a U-shaped opening structure, and the top end of the U-shaped cavity 8 is an open structure. The clamping member inside the U-shaped cavity 8 is always in a compressed state, and the U-shaped cavity 8 can effectively fix the shell and play a high-efficiency connection role.

[0028] Furthermore, the top end of the mounting base 1 has a mating groove 10, and the center of the mating groove 10 has a mating groove hole 11. The mounting base 1 also has four symmetrically distributed connecting holes 16. The bottom end of the mounting base 1 has an arched structure, and the two opposite side walls of the bottom end of the mounting base 1 each have two symmetrically distributed connecting holes 9. The connecting holes 9 are fixedly connected to the mounting position by adapter screws. The mating groove 10 limits the clamping part 5 and facilitates the effective application of the thermally conductive silicone layer 6. The thermally conductive silicone layer 6 efficiently transfers the heat generated by the automatic current sharing switch circuit board 3 to the copper heat sink 2, thereby improving the cooling quality of the automatic current sharing switch circuit board 3. The connecting holes 9 and 16 both serve a connecting function.

[0029] Furthermore, the copper heat sink 2 has a top plate 12 at its top end, which is connected to the mating groove 10. The copper heat sink 2 also has a bottom plate 13 at its bottom end. A connecting block is provided between the top plate 12 and the bottom plate 13 to connect with the mating groove hole 11. The bottom end of the bottom plate 13 has a set of equally spaced heat dissipation fins 14. The bottom plate 13 has connecting holes 15 at its four corners, which correspond to connecting holes 16. The connecting holes 15 are connected to the automatic current sharing switch circuit board 3 by means of adapter bolts passing through the connecting holes 16. The copper heat sink 2 is placed inside the bottom end of the mounting base 1 in an arched structure, which is in a suspended state to facilitate air circulation and improve the heat dissipation rate and quality of the heat dissipation fins 14.

[0030] Furthermore, the outer casing 4 is a hollow cuboid frame with an open bottom. Ventilation holes are provided on the side walls and top of the outer casing 4 at equal intervals. Four clamping blocks 17 are provided on the bottom of the two opposite side walls inside the outer casing 4 in an axially symmetrical manner. The clamping blocks 17 are connected to the U-shaped cavity 8. The side walls of the outer casing 4 are provided with connection ports 18. The clamping blocks 17 of the outer casing 4 serve to connect and limit the movement. The overall structure of the outer casing 4 not only protects the automatic current sharing switch circuit board 3 but also improves the overall heat dissipation quality, ensuring the working quality and efficiency of the automatic current sharing switch circuit board 3.

[0031] Furthermore, the clamping component 5 consists of two parts: two symmetrically distributed mating plates 19 and three equidistantly distributed springs 20. The two mating plates 19 are welded to the two ends of the springs 20, and the mating plate 19 at the top of the clamping component 5 is mated to the clamping block 17. The clamping component 5 is always in a compressed state, which can greatly improve the clamping quality between the mounting base 1 and the outer shell 4, and facilitate the disassembly of both, thereby improving the overall maintenance and repair speed.

[0032] Structural Description:

[0033] Mounting base 1: As the basic support structure of the power supply, the top end is used to house the automatic current sharing switch circuit board 3, and the bottom end is equipped with a copper heat sink 2, which has multiple connection holes for fixed installation.

[0034] Copper heat sink 2: It penetrates the interior of the mounting base 1, with a top plate 12 at the top that mates with the mating groove 10, and a bottom plate 13 and heat dissipation fins 14 at the bottom. The whole structure is in a suspended state to facilitate heat dissipation.

[0035] Automatic current sharing switch circuit board 3: Installed inside the top end of the mounting base 1, it adjusts the current in real time through algorithms and circuits to ensure current sharing among multiple power supply modules;

[0036] Outer shell 4: The whole is a hollow cuboid frame with an open bottom, with ventilation holes on the side walls and top, and a clamping block 17 inside, which protects and assists in heat dissipation of the automatic current sharing switch circuit board 3.

[0037] Clamping component 5: Composed of mating plate 19 and spring 20, located inside the top cavity 8 of mounting base 1, and always in a compressed state, used to achieve the clamping connection between mounting base 1 and outer shell 4;

[0038] Thermally conductive silicone layer 6: It is evenly applied between the top end of the automatic current equalization switch circuit board 3 and the copper heat sink 2, which can efficiently transfer the heat generated by the circuit board to the copper heat sink 2.

[0039] Side block 7: Two axially symmetrical structures at the top end of the mounting base 1, with U-shaped cavities 8 on their opposite sides for placing the clamping parts 5 and connecting and fixing the outer shell 4;

[0040] The cavity 8 has a U-shaped opening on the side wall and an open structure on the top. The clamping part 5 is placed inside and is in a compressed state, which plays an efficient role in connecting and fixing the outer shell 4.

[0041] Connection hole 9: Located on two opposite side walls at the bottom end of mounting base 1, it is symmetrically distributed and is fixedly connected to the mounting position by adapter screws, thus serving a connection function;

[0042] The mating groove 10 is located inside the top end of the mounting base 1. It serves to limit the position of the clamping part 5 and facilitates the application of the thermally conductive silicone layer 6. It has a mating groove hole 11 in the center.

[0043] Mating slot 11: Located in the center of the mating slot 10, it mates with the connecting block between the top plate 12 and the bottom plate 13 of the copper heat sink 2, and participates in the connection between components;

[0044] Top plate 12: Located at the top end of the copper heat sink 2, it is connected to the mating groove 10 of the mounting base 1 to assist in the installation and fixation of the copper heat sink 2;

[0045] Bottom plate 13: The bottom structure of the copper heat sink 2 has connection holes 15 at the four corners and heat sink fins 14 evenly distributed at the bottom to increase the heat dissipation area.

[0046] Heat dissipation fins 14: Installed at the bottom end of the bottom plate 13, they are evenly distributed, which can effectively increase the heat dissipation area and improve the heat dissipation rate and quality of the copper heat dissipation component 2.

[0047] Connection hole 2 15: Located at the four corners of the bottom plate 13, corresponding to connection hole 3 16 inside the mounting base 1, and connected to the automatic current sharing switch circuit board 3 by means of adapter bolts;

[0048] Connection hole 3 16: It is symmetrically distributed inside the mounting base 1, corresponding to connection hole 2 15, and serves to connect the automatic current sharing switch circuit board 3 and the copper heat sink 2 and other components.

[0049] Clamping block 17: It is set at the bottom of two opposite side walls inside the outer shell 4, and is symmetrically distributed. It is connected to the U-shaped cavity 8 to realize the connection between the outer shell 4 and the mounting base 1.

[0050] Connection port 18: It is located on the side wall of the housing 4. Although its specific connection purpose is not specified, it should be a connection channel for related lines or components.

[0051] Matching plate 19: A component of clamping part 5, two of which are symmetrically distributed on an axis. The inside is welded to both ends of spring 20, and the top end is matched with clamping block 17 to achieve clamping.

[0052] Spring 20: A component of clamping part 5, consisting of three springs evenly distributed and welded inside the two mating plates 19, so that clamping part 5 is always in a compressed state.

[0053] Working Principle: Install the automatic current sharing power supply correctly according to the diagram. The automatic current sharing power supply mainly consists of a mounting base 1, a copper heat sink 2, an automatic current sharing circuit board 3, a housing 4, a clamping component 5, and a thermally conductive silicone layer 6. For heat dissipation, the automatic current sharing power supply employs a highly efficient heat dissipation mechanism. The automatic current sharing circuit board 3 generates a large amount of heat during operation. This heat is efficiently transferred to the copper heat sink 2 through the thermally conductive silicone layer 6, which is evenly applied between the automatic current sharing circuit board 3 and the top of the copper heat sink 2. The top of the copper heat sink 2 has a top plate 12, which mates with the groove 10 inside the top of the mounting base 1. The bottom has a bottom plate 13 with a set of evenly distributed heat dissipation fins 14. The copper heat sink 2 is entirely placed within the arched structure inside the bottom of the mounting base 1, in a suspended state to facilitate air circulation. Meanwhile, the housing 4 is... The hollow cuboid frame with an opening at the bottom has equidistant ventilation holes on its side walls and top, which further promotes airflow, improves the heat dissipation rate and quality of the heat sink fins 14, and ensures the working quality and efficiency of the automatic current sharing switch circuit board 3. In addition, the installation and disassembly design of the power supply is also very ingenious. The top end of the mounting base 1 has two axially symmetrically distributed side blocks 7. The bottom end of the cavity 8 on the opposite side of the side blocks 7 is equipped with a clamping component 5. The clamping component 5 consists of two axially symmetrically distributed mating plates 19 and three equidistantly distributed springs 20, and is always in a compressed state. The bottom end of the two opposite side walls inside the outer shell 4 has four axially symmetrically distributed clamping blocks 17. The clamping blocks 17 are connected to the cavity 8. This design allows the outer shell 4 to be clamped to the mounting base 1 through the clamping components 5, which not only improves the clamping quality between the mounting base 1 and the outer shell 4, but also facilitates the disassembly of both, thereby improving the overall maintenance and repair speed.

[0054] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic current sharing switching power supply, comprising a mounting base (1), a copper heat sink (2), an automatic current sharing switching circuit board (3), a housing (4), a clamping component (5), and a thermally conductive silicone layer (6), characterized in that: The top end of the mounting base (1) is provided with an automatic current sharing switch circuit board (3), and the bottom end of the mounting base (1) is provided with a copper heat sink (2). The copper heat sink (2) passes through the interior of the mounting base (1). A thermally conductive silicone layer (6) is evenly applied between the top end of the automatic current sharing switch circuit board (3) and the copper heat sink (2). The four corners of the automatic current sharing switch circuit board (3) are fixedly connected to the copper heat sink (2) by adapter bolts. The top end of the mounting base (1) is provided with four axially symmetrical clamping parts (5). The top end of the mounting base (1) is provided with a shell (4). The shell (4) is correspondingly engaged with the mounting base (1) by the clamping parts (5).

2. The automatic current sharing switching power supply according to claim 1, characterized in that: The mounting base (1) has two side blocks (7) that are symmetrically distributed on the top end, and the two side blocks (7) have symmetrically distributed cavities (8) on opposite sides. The bottom of the cavity (8) is fitted with a clamping element (5), and the side wall of the cavity (8) is a cavity-shaped opening structure, and the top end of the cavity (8) is an opening structure.

3. The automatic current sharing switching power supply according to claim 2, characterized in that: The mounting base (1) has a mating groove (10) inside the top end, a mating groove hole (11) inside the center of the mating groove (10), and four connecting holes (16) arranged in an axially symmetrical manner inside the mounting base (1). The bottom end of the mounting base (1) has an arched structure inside, and two connecting holes (9) arranged in an axially symmetrical manner are opened on the two opposite side walls of the bottom end of the mounting base (1). The connecting holes (9) are fixedly connected to the mounting position by adapter screws.

4. The automatic current sharing switching power supply according to claim 1, characterized in that: The copper heat sink (2) has a top plate (12) at the top end, which is connected to the mating groove (10). The copper heat sink (2) has a bottom plate (13) at the bottom end. A connecting block is provided between the top plate (12) and the bottom plate (13) to be connected to the mating groove hole (11). The bottom plate (13) has a set of equally spaced heat dissipation fins (14) at the bottom end. The bottom plate (13) has two connecting holes (15) at the four corners. The two connecting holes (15) correspond to the three connecting holes (16). The two connecting holes (15) are connected to the automatic current sharing switch circuit board (3) through the connecting hole (16) by the adapter bolt.

5. An automatic current sharing switching power supply according to claim 1, characterized in that: The outer shell (4) is a hollow cuboid frame with an open bottom. Ventilation holes are provided on the side walls and top of the outer shell (4) at equal intervals. Four clamping blocks (17) are provided on the bottom of the two opposite side walls inside the outer shell (4) in an axially symmetrical manner. The clamping blocks (17) are connected to the U-shaped cavity (8). The side walls of the outer shell (4) are provided with connection ports (18).

6. The automatic current sharing switching power supply according to claim 2, characterized in that: The clamping component (5) consists of two parts: two symmetrically distributed mating plates (19) and three equidistantly distributed springs (20). The two mating plates (19) are welded to the two ends of the springs (20), and the mating plate (19) at the top of the clamping component (5) is mated to the clamping block (17).

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