Vertical high-power bidirectional direct-current power supply module

Abstract

A vertical high-power bidirectional direct-current power supply module relates to the field of bidirectional direct-current power supplies, and is characterized in that an input bottom plate, an output bottom plate, an input radiator and an output radiator are vertically arranged, the width of a PCB (printed circuit board) is increased by utilizing a longitudinal space, and on the premise of not changing the width of a standard case, the transverse space in the case can be better utilized, and higher power density can be provided. The input bottom plate, the output bottom plate, the input radiator and the output radiator are fixed on the fixing plate and wrapped by the protective shell and the protective cover, and the whole module is insulated and isolated. The input bottom plate and the output bottom plate which are vertically arranged divide the closed containing cavity into two independent isolation air channels, and the heat dissipation capacity of the module is improved.

Description

Technical Field

[0001] The utility model relates to the field of bidirectional direct current power supplies, in particular to a vertical high-power bidirectional direct current power supply module. Background Art

[0002] With the development of the new energy market, industries such as battery charge and discharge testing, motor testing, inverter testing, energy storage, and photovoltaic inverters have placed new demands on the output characteristics of DC power modules. They need to output greater power in a smaller size, while also placing increasing demands on voltage, current, and power levels. Most of the bidirectional DC power modules currently on the market are large and have poor heat dissipation. While these modules meet current and power level requirements, they have the following disadvantages: poor flexibility, poor integrity, poor anti-interference capabilities, poor resistance to external interference, unsuitability for high-power test sites, and relatively slow response speeds. Therefore, it is necessary to develop a high-power module with high power density, small size, high power, excellent heat dissipation, and fast response speed to provide a better solution for testing and enhance market competitiveness. Summary of the Invention

[0003] In order to overcome the deficiencies of the above technologies, the utility model provides a vertical high-power bidirectional DC power supply module with a compact structure and improved heat dissipation capacity of the entire mold base.

[0004] The technical solution adopted by the utility model to overcome the technical problems is:

[0005] A vertical high-power bidirectional DC power supply module includes an output waveform board, an input waveform board, an output bottom board, and an input bottom board of the bidirectional DC power supply, and further includes:

[0006] The protective shell is a U-shaped structure with a protective cover fixed at its top opening, and the protective shell and the interior of the protective cover form a closed cavity;

[0007] The fan plate is arranged in the vertical direction and is fixed to the front end of the closed cavity by a fixing mechanism I;

[0008] The fixed plate is located in the closed cavity and is fixed to the bottom of the protective shell by the fixing mechanism II. The input base plate is vertically installed at the front end of the fixed plate, and the output base plate is vertically installed at the rear end of the fixed plate. The input base plate and the output base plate are located on the same vertical plane.

[0009] The input corrugated plate is arranged in the horizontal direction and is installed on the upper end of the input base plate;

[0010] The output corrugated plate is arranged in the horizontal direction and is installed on the upper end of the output bottom plate;

[0011] The output radiator is arranged on the fixed plate and contacts the MOS tube II on the back of the output base plate;

[0012] The input heat sink is installed on the fixed plate and contacts the MOS tube I on the back of the input base plate;

[0013] N fans I, mounted on the fan plate, with their air outlets facing the output radiator and the input radiator; and

[0014] M fans II are installed on the fan board, and the air outlets thereof are directly opposite to the inductor I and capacitor I on the front of the input base plate and the capacitor II and inductor II on the front of the output base plate.

[0015] Furthermore, the protective shell is made of aluminum plate bent into a U shape.

[0016] Furthermore, the protective cover is made of PP material.

[0017] Furthermore, the fixing plate is made of FR4 epoxy resin insulating material, and the protective cover is made of PP material.

[0018] Furthermore, the above-mentioned fixing mechanism I includes fixed copper blocks respectively installed on the left and right sides of the fan plate, and a through hole arranged at the side end of the protective shell. The fixed copper block is provided with a screw hole II, and the screw passes through the through hole and is screwed into the screw hole II.

[0019] Furthermore, the fixing mechanism II includes a plurality of studs embedded in the fixing plate, and a plurality of countersunk holes are correspondingly provided at the bottom of the protective shell, and the screws pass through the countersunk holes and are screwed into the studs.

[0020] Furthermore, it also includes a silicon cloth II arranged between the output heat sink and the MOS tube II.

[0021] Furthermore, it also includes a silicon cloth I arranged between the input heat sink and the MOS tube I.

[0022] Preferably, the value of N is 2 and the value of M is 2.

[0023] Furthermore, the outer diameter of the fan blades of fan I is greater than the outer diameter of the fan blades of fan II.

[0024] The beneficial effects of this utility model include placing the input and output baseplates, input and output radiators vertically, utilizing the longitudinal space to increase the width of the PCB. This allows for better utilization of the lateral space within the chassis, providing higher power density, without changing the width of the standard chassis. The input and output baseplates, input and output radiators are secured to a fixed plate and enclosed by a protective shell and shield, insulating the entire module. The vertically positioned input and output baseplates divide the enclosed cavity into two independent, isolated air ducts, enhancing the module's inherent heat dissipation capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0026] Figure 2 This is a three-dimensional structural diagram of the radiator of the present utility model;

[0027] Figure 3 This is a three-dimensional structural diagram of the corrugated plate portion of the present utility model;

[0028] Figure 4 This is a three-dimensional structural diagram of the silicon cloth portion of the present utility model;

[0029] Figure 5 This is a three-dimensional structural diagram of the MOS tube part of the utility model;

[0030] Figure 6 This is a three-dimensional structural diagram of the fixed copper block portion of the utility model;

[0031] In the figure, 1. Protective shell 2. Fan plate 3. Through hole 4. Protective cover 5. Fan I 6. Fan II 7. Output corrugated plate 8. Input corrugated plate 9. Fixing plate 10. Stud 11. Screw hole I 12. Fixing copper block 13. Screw hole II 14. Input heat sink 15. Output heat sink 16. Inductor I 17. Capacitor I 18. Capacitor II 19. Inductor II 20. Silicon cloth I 21. Silicon cloth II 22. Input base plate 23. Output base plate 24. MOS tube I 25. MOS tube II DETAILED DESCRIPTION

[0032] The following is combined with Figure 1 To the attached Figure 6 The utility model is further described.

[0033] A vertical high-power bidirectional DC power supply module includes an output waveform plate 7, an input waveform plate 8, an output base plate 23, and an input base plate 22 of a bidirectional DC power supply, and also includes: a protective shell 1, which is a U-shaped structure, and a protective cover 4 is fixed at its top opening, and the protective shell 1 and the protective cover 4 form a closed cavity; a fan plate 2, which is arranged in the vertical direction and fixed to the front end of the closed cavity by a fixing mechanism I; a fixed plate 9, which is located in the closed cavity and is fixed to the bottom of the protective shell 1 by a fixing mechanism II, and the input base plate 22 is vertically installed at the front end of the fixing plate 9, and the output base plate 23 is vertically installed at the rear end of the fixing plate 9, and the input base plate 22 and the output base plate 23 are located on the same vertical plane; the input waveform plate 8 is arranged in the horizontal direction and is installed at the upper end of the input base plate 22; the output waveform plate 7 is arranged in the horizontal direction and is installed at the upper end of the output base plate 23; an output radiator 15, which is arranged on the fixing plate 9 and is connected to the MOS tube II on the back of the output base plate 23 25; the input radiator 14 is provided on the fixing plate 9 and is in contact with the MOS tube I 24 on the back of the input base plate 22; N fans I 5 are installed on the fan plate 2, and their air outlets are directly opposite to the output radiator 15 and the input radiator 14; and M fans II 6 are installed on the fan plate 2, and their air outlets are directly opposite to the inductor I 16 and capacitor I 17 on the front of the input base plate 22 and the capacitor II 18 and inductor II 19 on the front of the output base plate 23.

[0034] The input base plate 22, output base plate 23, input radiator 14, and output radiator 15 are placed vertically, and the longitudinal space is used to increase the width of the PCB. Without changing the width of the standard chassis, the horizontal space inside the chassis can be better utilized to provide higher power density. The input base plate 22, output base plate 23, input radiator 14, and output radiator 15 are fixed to the fixed plate 9 and are wrapped by the protective shell 1 and protective cover 4 on the outside, insulating and isolating the entire module. The vertically arranged input base plate 22 and output base plate 23 divide the enclosed cavity into two independent isolated air ducts, improving the module's own heat dissipation capacity and the performance of the entire module during operation. In front of the module is the fan board 2, which supplies power to fans I 5 and II 6 and continuously provides air volume to the module for heat dissipation during operation.

[0035] In one embodiment of the present invention, the protective shell 1 is made of aluminum plate bent into a U-shape, which has a simple structure and is easy to manufacture. The protective cover 4 is made of PP material, and the entire power module shell is made of aluminum material, which is light and corrosion-resistant.

[0036] In one embodiment of the present invention, the fixing plate 9 is made of FR4 epoxy resin insulating material. The fixing plate 9 has insulating properties, which further improves the reliability of use.

[0037] In an embodiment of the utility model, fixed mechanism I can be as follows structure, including fixed copper block 12 that installs respectively in fan plate 2 left and right two sides, set up in the through -hole 3 of protective shell 1 side end, fixed copper block 12 is provided with screw hole II 13, screw passes through through -hole 3 and is screwed in screw hole II 13. Connection structure is simple, and dismounting is convenient.

[0038] In an embodiment of the utility model, fixed mechanism II can be as follows structure, it includes embedding in fixed plate 9 in a plurality of stud 10, the bottom of protective shell 1 is correspondingly provided with a plurality of countersunk hole, screw passes through countersunk hole and is screwed into stud 10. Connection structure is simple, and dismounting is convenient.

[0039] In an embodiment of the utility model, still including the silicon cloth II 21 that is set up between output radiator 15 and MOS tube II 25. Silicon cloth II 21 can guide the heat of MOS tube II 25 to output radiator 15, and simultaneously silicon cloth II 21 can play the insulation effect, further improved the reliability. Still including the silicon cloth I 20 that is set up between input radiator 14 and MOS tube I 24. Silicon cloth I 20 can guide the heat of MOS tube I 24 to output radiator 15, and simultaneously silicon cloth I 20 can play the insulation effect, further improved the reliability.

[0040] In an embodiment of the utility model, preferably, the value of N is 2, and the value of M is 2.

[0041] In an embodiment of the utility model, the fan blade outer diameter of fan I 5 is greater than the fan blade outer diameter of fan II 6. Since the heat generation of MOS tube II 25 on the back of output bottom plate 23 and MOS tube I 24 on the back of input bottom plate 22 is large, and the heat generation of inductance I 16 and capacitor I 17 on the front of input bottom plate 22 and capacitor II 18 and inductance II 19 on the front of output bottom plate 23 is small, therefore, fan I 5 with large fan blade outer diameter is used to strongly radiate MOS tube I 24 and MOS tube II 25.

[0042] Finally, it should be noted that: the above only for preferred embodiment of the utility model has been described, and is not used to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiment, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part technical feature. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A vertical high-power bidirectional DC power supply module, comprising an output waveform plate (7), an input waveform plate (8), an output bottom plate (23), and an input bottom plate (22) of a bidirectional DC power supply, characterized in that: Also includes: The protective shell (1) is of a U-shaped structure, and a protective cover (4) is fixed to the top opening thereof, and the protective shell (1) and the protective cover (4) form a closed cavity; The fan plate (2) is arranged in a vertical direction, and the fan plate (2) is fixed to the front end of the closed cavity by a fixing mechanism I; The fixed plate (9) is located in the closed cavity and is fixed to the bottom of the protective shell (1) through the fixing mechanism II. The input bottom plate (22) is vertically installed at the front end of the fixed plate (9), and the output bottom plate (23) is vertically installed at the rear end of the fixed plate (9). The input bottom plate (22) and the output bottom plate (23) are located on the same vertical plane. An input corrugated plate (8) is arranged in a horizontal direction and is mounted on the upper end of the input bottom plate (22); An output corrugated plate (7) is arranged in a horizontal direction and is mounted on the upper end of the output bottom plate (23); An output radiator (15) is provided on the fixing plate (9) and contacts the MOS tube II (25) on the back side of the output base plate (23); An input heat sink (14) is disposed on the fixing plate (9) and is in contact with the MOS tube I (24) on the back side of the input base plate (22); N fans I (5), mounted on the fan plate (2), with their air outlets facing the output radiator (15) and the input radiator (14); and M fans II (6) are installed on the fan plate (2), and their air outlets are directly opposite to the inductor I (16) and capacitor I (17) on the front of the input base plate (22) and the capacitor II (18) and inductor II (19) on the front of the output base plate (23).

2. The vertical high-power bidirectional DC power supply module according to claim 1, characterized in that: The protective shell (1) is made of an aluminum plate bent into a U shape.

3. The vertical high-power bidirectional DC power supply module according to claim 1, characterized in that: The protective cover (4) is made of PP material.

4. The vertical high-power bidirectional DC power supply module according to claim 1, characterized in that: The fixing plate (9) is made of FR4 epoxy resin insulating material.

5. The vertical high-power bidirectional DC power supply module according to claim 1, characterized in that: The fixing mechanism I comprises a fixing copper block (12) respectively mounted on the left and right sides of the fan plate (2), and a through hole (3) provided at the side end of the protective shell (1). The fixing copper block (12) is provided with a screw hole II (13), and a screw passes through the through hole (3) and is screwed into the screw hole II (13).

6. The vertical high-power bidirectional DC power supply module according to claim 1, characterized in that: The fixing mechanism II includes a plurality of studs (10) embedded in the fixing plate (9), and a plurality of countersunk holes are correspondingly provided at the bottom of the protective shell (1), and screws are screwed into the studs (10) after passing through the countersunk holes.

7. The vertical high-power bidirectional DC power supply module according to claim 1, characterized in that: It also includes a silicon cloth II (21) arranged between the output radiator (15) and the MOS tube II (25).

8. The vertical high-power bidirectional DC power supply module according to claim 1, characterized in that: It also includes a silicon cloth I (20) arranged between the input radiator (14) and the MOS tube I (24).

9. The vertical high-power bidirectional DC power supply module according to claim 1, characterized in that: The value of N is 2, and the value of M is 2.

10. The vertical high-power bidirectional DC power supply module according to claim 1, characterized in that: The outer diameter of the fan blades of fan I (5) is larger than the outer diameter of the fan blades of fan II (6).

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