Dual-power-supply main and standby power uninterruptible power supply device

Abstract

The utility model relates to the technical field of power electronics, in particular to a dual-power-supply main / standby power uninterruptible power supply device, which comprises a dual-switch power supply module electrically connected with a first diode module and a second diode module through a first direct current power supply loop fuse and a second direct current power supply loop fuse respectively; the top plate of the radiator is fixedly provided with the first diode module and the second diode module; the fan is arranged on one side of the radiator and is controlled to start and stop through a temperature control switch; the first diode module and the second diode module are respectively provided with a DC output load end. According to the utility model, the problems of system failure, high UPS scheme cost and large size caused by failure of a single power supply in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the field of power electronics technology, and in particular to a dual-power main and backup uninterruptible power supply device. Background Technology

[0002] In modern electronic equipment and control systems, a stable supply of low-voltage DC power is crucial for ensuring the normal operation of the system. To achieve this, AC-to-DC (AC-DC) or DC-to-DC (DC-DC) switching power supplies are typically used to convert energy into low-voltage DC for use. However, some existing power supply solutions have significant drawbacks:

[0003] First, while the method of supplying a single AC mains power supply to an AC-DC switching power supply is simple in design and low in cost, its reliability is not high. Once the single AC power source fails or loses power, the entire control system will lose power, leading to system failure. Second, using AC mains power plus an uninterruptible power supply (UPS) in parallel to supply the AC-DC switching power supply can continue to provide power when the mains power fails, ensuring the continuity of control power. However, this method is more expensive and has a larger overall size and weight, making it unsuitable for applications requiring economical and miniaturized system design.

[0004] In order to solve the above-mentioned technical problems, this utility model presents a dual-power main and backup uninterrupted power supply device. Utility Model Content

[0005] This utility model provides a dual-power main and backup uninterruptible power supply device, which aims to solve the problems of system failure caused by single power supply failure and high cost and large size of existing UPS solutions.

[0006] A dual-power main and backup uninterruptible power supply device includes:

[0007] A dual-switch power supply module is electrically connected to a first diode module and a second diode module via fuses in the first and second DC power supply circuits, respectively.

[0008] The heat sink has the first diode module and the second diode module fixedly mounted on its top plate.

[0009] A fan is located on one side of the heat sink and its start / stop is controlled by a temperature control switch;

[0010] Both the first diode module and the second diode module are equipped with a DC output load terminal.

[0011] Based on the above technical solution, the radiator includes a radiator body and a top plate;

[0012] A first temperature control switch mounting hole is provided at the center of the top plate for installing the temperature control switch;

[0013] The second temperature control switch mounting hole is located in the middle of the radiator body and is used to install the temperature control switch.

[0014] A diode module mounting hole is provided on the top plate for mounting the diode module;

[0015] The first fan mounting hole and the second fan mounting hole are provided on one side of the heat sink body. Each mounting hole includes two symmetrically distributed circular holes for mounting at least one other fan.

[0016] Based on the above technical solution, a main mounting hole is also included, which is located at the bottom of the radiator and is used to fix the radiator to the support structure.

[0017] Furthermore, the heat sink is made of aluminum.

[0018] Preferably, it also includes a support column, one end of which is fixedly connected to the fan, and the other end is connected to the first fan mounting hole and the second fan mounting hole by screws.

[0019] Beneficial effects

[0020] Compared with existing technologies, the advantages of this invention are: High reliability and seamless switching: By combining ACDC and DCDC dual power supplies with the voltage drop differences of different types of diode modules, automatic switching between main and backup power supplies is achieved without manual intervention or voltage adjustment, ensuring uninterrupted power supply. Intelligent heat dissipation and energy saving: The temperature control switch dynamically starts and stops the fan according to heat dissipation needs, reducing energy consumption and noise. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be derived from the provided drawings without creative effort.

[0022] Figure 1 : A schematic diagram of the structure of this utility model;

[0023] Figure 2 : A schematic diagram of the structure of the radiator described in this utility model;

[0024] Figure 3 : A schematic diagram of the structure of the temperature control switch described in this utility model;

[0025] Figure 4 : Power supply principle diagram of this utility model. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and examples:

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] like Figure 1 As shown, a dual-power main and backup uninterruptible power supply device includes: a dual-switch power supply module 7, which is electrically connected to a first diode module 1 and a second diode module 2 through a first DC power supply circuit fuse 91 and a second DC power supply circuit fuse 92, respectively; a diode module is an electronic component consisting of one or more diodes packaged together, used to achieve specific functions, such as rectification, protecting circuits from reverse voltage, etc.

[0031] As an overload and short-circuit protection component, a fuse can automatically disconnect the circuit when the current abnormally rises to a certain level, thereby protecting downstream electronic equipment from damage. Installing a fuse before a dual-switch power supply module can effectively prevent damage to the switching power supply or other components due to excessive current.

[0032] The heat sink 3 has the first diode module 1 and the second diode module 2 fixedly mounted on its top plate 31. The diode modules generate heat during operation, especially under high power conditions. By directly mounting the diode modules on a heat sink with good thermal conductivity, the generated heat can be effectively conducted away, preventing the diodes from being damaged by overheating and improving their operational stability and lifespan.

[0033] like Figure 2 and Figure 3 As shown, the radiator 3 includes a radiator body and a top plate 31;

[0034] A first temperature control switch mounting hole 35 is provided at the center of the top plate 31 for installing the temperature control switch 6; a second temperature control switch mounting hole 34 is provided in the middle of the radiator body for installing the temperature control switch 6.

[0035] By setting a first temperature control switch mounting hole 35 in the center of the top plate 31 and a second temperature control switch mounting hole 34 in the middle of the radiator body, the installation position of the temperature control switch can be flexibly selected according to actual needs to ensure accurate sensing of radiator temperature changes. This helps to achieve more precise fan start / stop control, thereby improving heat dissipation efficiency and saving energy.

[0036] A diode module mounting hole 36 is provided on the top plate 31 for mounting the diode module; the diode module mounting hole 36 is provided on the top plate 31 for directly mounting the diode module, making the whole device more compact and integrated.

[0037] A first fan mounting hole 32 and a second fan mounting hole 33 are provided on one side of the radiator body. Each mounting hole includes two symmetrically distributed circular holes for mounting at least one other fan. A fan 4 is located on one side of the radiator 3 and its start / stop is controlled by a temperature control switch 6.

[0038] The system also includes a support column 5, one end of which is fixedly connected to the fan 4, and the other end is connected to the first fan mounting hole 32 and the second fan mounting hole 33 via screws. The support column provides stable support for the fan, ensuring that the fan will not shift or loosen due to vibration or external forces during operation. This is crucial for long-term stable operation, especially in industrial applications where the equipment may face various environmental challenges. The pre-set first and second fan mounting holes 32 and the use of screws for fixing greatly simplify the fan installation process. This not only reduces installation time but also lowers the risk of failure due to improper installation.

[0039] Both the first diode module 1 and the second diode module 2 are equipped with a DC output load terminal 83. Since each component, such as the diode module, temperature control switch, and fan, has dedicated mounting holes, their installation and removal are simple and easy, facilitating routine maintenance and component replacement. Furthermore, if future upgrades to the cooling system are needed, such as adding a more efficient fan or an improved temperature control switch, modifications can be made relatively easily.

[0040] The heat sink 3 is made of aluminum. Aluminum has excellent thermal conductivity, which allows it to quickly dissipate the heat generated by the diode module. This is crucial for maintaining the operating temperature of electronic components within a safe range, helping to extend their lifespan and improve system stability.

[0041] It also includes a main mounting hole 37, located at the bottom of the heat sink 3, for fixing the heat sink 3 to the support structure. The main mounting hole 37, located at the bottom of the heat sink 3, is used to fix the dual-power main / backup uninterruptible power supply device of this invention to the support structure of other equipment. This design allows the entire device to be stably integrated into a wider range of systems or equipment, such as cabinets, control boxes, or the internal frame of other electronic equipment. Securely fixing the heat sink to the support structure through the main mounting hole ensures the stability of the entire device during operation, preventing displacement due to vibration or external forces. This is crucial for ensuring the normal operation of internal electronic components such as diode modules and fans.

[0042] The dual-switch power supply module includes an AC-DC power supply module and a DC-DC power supply module. The dual-switch power supply module 7 is provided with a DC power supply port 81 and an AC power supply port 82. The dual-switch power supply module 7 is connected to the first diode module 1 and the second diode module 2 through the first DC power supply circuit fuse 91 and the second DC power supply circuit fuse 92, respectively.

[0043] like Figure 4 As shown, the first diode module 1 is an ideal diode module, and the second diode module 2 is a standard diode module. Their forward voltage drops are different, which is used to achieve automatic switching between primary and backup power supplies. For example, the first diode module 1 is an ideal diode module D1 (e.g., MLRD25A V). F &I FM (0.06V & 25A), the second diode module 2 is a common type diode module D2 (e.g., MD25A V). F &I FM (0.75V & 25A).

[0044] The dual-switch power supply module 7 provides coordinated power supply: Main power supply (ACDC power module) operation: When the AC power supply is normal, the ACDC switching power supply outputs DC 24V. After the ideal diode module D1 (with a voltage drop of 0.06V), the output voltage is 23.94V. Since the cathodes of the ideal diode module D1 and the ordinary diode module D2 are connected, the output voltage V+ is clamped at 23.94V, causing the ordinary diode module D2 to be cut off. Current will not flow through the DC-DC switching power supply circuit to the load end. Therefore, at this time, all the energy supply for the control circuit is provided by the ACDC switching power supply.

[0045] Backup power supply (DC-CDC power module) switching: When the AC power is interrupted, the DC-CDC switching power supply outputs DC24V. When the voltage difference across the ordinary diode module D2 reaches 24-0.75=23.25V, D2 conducts, and at this time all control power is supplied by the DC-side DC-CDC switching power supply.

[0046] Diodes possess unidirectional conductivity, a characteristic that enables diode modules to perform rectification. During the conversion of AC power to DC power by the ACDC power module, the diode module ensures that current flows in only one direction, providing a stable DC power supply to subsequent loads. Utilizing the voltage drop differences between different diode modules, the backup power supply remains inactive when the main power supply is normal; in the event of a main power supply failure, the backup power supply can automatically and seamlessly take over, achieving uninterrupted power supply without manual intervention or complex voltage regulation.

[0047] Heat dissipation and temperature control management: The diode module is integrated into a custom aluminum heat sink, with fans mounted on both sides of the heat sink and controlled by a KSD9700 temperature control switch. When the heat sink temperature reaches a threshold, fan 4 starts to force air cooling; it automatically shuts off after the temperature drops, balancing heat dissipation efficiency with energy saving and noise reduction.

[0048] The device has an overall size of approximately 60×80×100mm, and the heat sink, diode module and power supply are highly integrated, supporting rapid installation and maintenance.

[0049] It should be noted that the power module, diode module, and fan in this embodiment are all general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0050] The present invention has been described above by way of example, but the present invention is not limited to the specific embodiments described above. Any modifications or variations made based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A dual-power main and backup uninterruptible power supply device, characterized in that, include: The dual-switch power supply module (7) is electrically connected to the first diode module (1) and the second diode module (2) through the first DC power supply circuit fuse (91) and the second DC power supply circuit fuse (92), respectively. The heat sink (3) has the first diode module (1) and the second diode module (2) fixedly mounted on its top plate (31); A fan (4) is located on one side of the heat sink (3) and is controlled to start and stop by a temperature control switch (6); Both the first diode module (1) and the second diode module (2) are provided with a DC output load terminal (83).

2. The dual-power main and backup uninterruptible power supply device according to claim 1, characterized in that: The radiator (3) includes a radiator body and a top plate (31). The first temperature control switch fixing hole (35) is located at the center of the top plate (31) and is used to install the temperature control switch (6). The second temperature control switch fixing hole (34) is located in the middle of the radiator body and is used to install the temperature control switch (6). A diode module mounting hole (36) is provided on the top plate (31) for mounting the diode module; The first fan mounting hole (32) and the second fan mounting hole (33) are provided on one side of the heat sink body. Each mounting hole includes two symmetrically distributed circular holes for mounting at least one other fan.

3. The dual-power main and backup uninterruptible power supply device according to claim 2, characterized in that: It also includes a main mounting hole (37) located at the bottom of the radiator (3) for fixing the radiator (3) to the support structure.

4. The dual-power main and backup uninterruptible power supply device according to claim 1, characterized in that... The heat sink (3) is made of aluminum.

5. A dual-power main and backup uninterruptible power supply device according to claim 2, characterized in that... It also includes a support column (5), one end of which is fixedly connected to the fan (4), and the other end is connected to the first fan mounting hole (32) and the second fan mounting hole (33) by screws.

6. The dual-power main and backup uninterruptible power supply device according to claim 1, characterized in that... The dual-switch power supply module includes an AC-DC power supply module and a DC-DC power supply module.

7. The dual-power main and backup uninterruptible power supply device according to claim 6, characterized in that: The dual-switch power supply module (7) is provided with a DC power supply port (81) and an AC power supply port (82). The dual-switch power supply module (7) is connected to the first diode module (1) and the second diode module (2) through the first DC power supply circuit fuse (91) and the second DC power supply circuit fuse (92), respectively.

8. The dual-power main and backup uninterruptible power supply device according to claim 7, characterized in that: The first diode module (1) is an ideal diode module, and the second diode module (2) is a common diode module. The forward voltage drops of the two are different, which is used to realize the automatic switching of the main and backup power supplies.

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