Hydrogen fuel cell system controller dual-power supply device controller

Abstract

The utility model discloses a hydrogen fuel cell system controller dual-power supply device controller, which relates to the technical field of power supply control, and comprises a controller main body and an electric power system, the left end and the right end of the controller main body are respectively provided with a fixing rod, and the upper end and the lower end of the controller main body are respectively provided with a mounting frame. A limiting groove is formed in one end of the mounting frame, an electric power system is mounted in the controller body, and the electric power system comprises a V1 line, a V2 line, an MOSFET circuit, an MOSFET switch, a Boost circuit, a Charge circuit and a battery Bat. According to the utility model, through the dual-power supply device and mainly introducing a switching method between the dual power supplies, the heat loss of the circuit can be reduced, the system efficiency can be improved, meanwhile, the auxiliary power supply can be ensured to continuously complement energy when not outputting outwards, and the long-term stability of the system is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply control, in particular to a controller for a dual power supply device of a hydrogen fuel cell system controller. Background Art

[0002] Dual power supply means that the system is powered by two independent power supplies, forming an effective complement. Dual power supply improves the availability and reliability of the system and enhances the system's anti-interference ability. A typical dual power supply structure is as follows Figure 1 This circuit is typically powered by a primary power source, V2, and a secondary power source, V1, which has a voltage slightly lower than V2. If V2 is lost, V1 can immediately replenish it. Once V2 is restored, V1 is effectively disconnected from the load. To ensure safety and system stability during use, a dual-power supply controller for a hydrogen fuel cell system is required.

[0003] The existing announcement number is a dual power supply device controller. During operation, it is not convenient to use MOSFET to keep the main power supply and the auxiliary power supply independent of each other, which is not convenient for reducing the heat loss of the circuit and improving the efficiency of the system. The main power supply of the system is not convenient to replenish the auxiliary power supply through the Charge circuit, which reduces the long-term stability of the system. Therefore, a hydrogen fuel cell system controller dual power supply device controller is urgently needed. Utility Model Content

[0004] Based on this, the purpose of the present utility model is to provide a hydrogen fuel cell system controller dual power supply device controller to solve the problem that when the existing hydrogen fuel cell system controller dual power supply device controller is used, it is not convenient to use MOSFET to keep the main power supply and the auxiliary power supply independent of each other, it is not convenient to reduce the heat loss of the circuit and improve the efficiency of the system, and the main power supply of the system is not convenient to replenish the auxiliary power supply through the Charge circuit, which reduces the long-term stability of the system.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a hydrogen fuel cell system controller dual power supply device controller, comprising a controller body and a power system, wherein fixing rods are installed at both left and right ends of the controller body, and mounting frames are installed at the upper and lower ends of the controller body, and a limiting slot is provided at one end of the mounting frame. A power system is installed inside the controller body, and the power system includes a V1 circuit, a V2 circuit, a MOSFET circuit, a MOSFET switch, a Boost circuit, a Charge circuit, and a battery Bat.

[0006] Preferably, the V1 circuit is the main power supply of the circuit, which is supplied to the load through a switch composed of a MOSFET circuit. The MOSFET circuit needs to be equipped with an opening circuit.

[0007] Preferably, the V2 line also passes through a MOSFET switch equipped with an open circuit and then is connected to the load through a Boost circuit.

[0008] Preferably, the start-up circuit of the V2 line needs to be controlled by an external enable signal EN, and the start-up circuit enable signal of the V1 line comes from the V1 line itself. When the V2 line is a battery load, the V1 line can also replenish energy to the V2 line through the Charge circuit 506.

[0009] Preferably, when the V1 circuit and the V2 circuit exist at the same time, the V1 circuit can also turn off the MOSFET switch on circuit of the V2 circuit through the blocking circuit, thereby turning off the MOSFET circuit and preventing the V2 circuit from outputting externally.

[0010] Preferably, the V1 line can replenish energy for the V2 line through the Charge circuit, which greatly ensures the long-term stability of the system.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model adopts a dual power supply device and focuses on the switching method between the dual power supplies, which can reduce the heat loss of the circuit and improve the system efficiency. At the same time, it can ensure that the auxiliary power supply can continue to replenish energy when it is not output to the outside, greatly improving the long-term stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view structural diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the common dual power supply circuit structure;

[0015] Figure 3 This is a schematic diagram of the structure of the practical dual power supply device;

[0016] Figure 4 This is the circuit schematic diagram of this practical dual power supply device.

[0017] In the figure: 1. Controller body; 2. Fixing rod; 3. Mounting frame; 4. Limiting slot; 5. Power system; 501. V1 circuit; 502. V2 circuit; 503. MOSFET circuit; 504. MOSFET switch; 505. Boost circuit; 506. Charge circuit; 507. Battery Bat. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] The following describes an embodiment of the present invention based on its overall structure.

[0020] See also Figure 1-4 A hydrogen fuel cell system controller dual power supply device controller includes a controller body 1 and a power system 5. Fixed rods 2 are installed at both ends of the left and right ends of the controller body 1, and mounting frames 3 are installed at the upper and lower ends of the controller body 1. A limiting slot 4 is provided at one end of the mounting frame 3. The power system 5 is installed inside the controller body 1. The power system 5 includes a V1 line 501, a V2 line 502, a MOSFET circuit 503, a MOSFET switch 504, a Boost circuit 505, a Charge circuit 506, and a battery Bat 507.

[0021] Working principle: When in use, V1 circuit 501 is the main power supply of the circuit, and supplies power to the load through the switch composed of MOSFET circuit 503. MOSFET circuit 503 needs to be equipped with an open circuit. V2 circuit 502 also passes through the MOSFET switch 504 equipped with an open circuit, and then connects to the load through the Boost circuit 505. The difference is that the open circuit of V2 circuit 502 needs to be controlled by an external enable signal EN, and the enable signal of the MOSFET circuit 503 of V1 circuit 501 comes from V1 circuit 501 itself. It is worth noting that when V2 circuit 50 When the load is a battery, the V1 line 501 can also replenish the V2 line 502 through the Charge circuit 506. When the V1 line 501 and the V2 line 502 exist at the same time, the V1 line 501 can also turn off the MOSFET circuit 503 of the V2 line 502 through the blocking circuit, thereby turning off the MOSFET switch 504 so that the V2 line 502 cannot output externally. This can greatly reduce the heat loss of the circuit and improve the efficiency of the system. The V1 line 501 can replenish the V2 line 502 through the Charge circuit 506, which greatly ensures the long-term stability of the system.

[0022] The specific circuit diagram of the dual power supply device is as follows Figure 3As shown, the circuit has two significant features: ① The dual power supply device generally starts the load through the V2 line 502 through an external EN signal. When the system starts, it will supply power to the V1 line 501. At this time, the V2 line 502 will enter the disconnected state. ② The auxiliary power supply is generally a battery Bat507, and its voltage is lower than the main power supply input +, input +, and output + voltages are the same as the Boost507 output voltage, slightly lower than the input + voltage, and higher than the battery Bat507 voltage.

[0023] When the system starts, EN is enabled and closed, and R3 and R4 act as a start-up circuit to turn on Q3 and Q4. The battery Bat507 reaches the Boost circuit 505 through Q3 and Q4, and the output is established. The system power supply is energized and starts running. The input + comes from the system power supply. After the input + voltage is established, R1 and R2 act as a start-up circuit to turn on Q1 and Q2. The input + voltage reaches the output +. The input + will also work together with R3 and R4 through the blocking circuit composed of R5, R6, C1, and D1 to turn off Q3 and Q4. The Bat circuit 507 disconnects the output, and the output + starts charging the battery Bat507 through the Charge circuit 506. This completes the use process of the device. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0024] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the protection content of the present invention.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hydrogen fuel cell system controller dual power supply device controller, comprising a controller body (1) and a power system (5), characterized in that: The controller body (1) is provided with fixing rods (2) at both left and right ends, and a mounting frame (3) is provided at the upper and lower ends of the controller body (1). A limiting slot (4) is provided at one end of the mounting frame (3). A power system (5) is installed inside the controller body (1), and the power system (5) includes a V1 circuit (501), a V2 circuit (502), a MOSFET circuit (503), a MOSFET switch (504), a Boost circuit (505), a Charge circuit (506), and a battery Bat (507).

2. A hydrogen fuel cell system controller dual power supply device controller according to claim 1, characterized in that: The V1 circuit (501) is the main power supply of the circuit, and is supplied to the load through a switch composed of a MOSFET circuit (503). The MOSFET circuit (503) needs to be equipped with an opening circuit.

3. A hydrogen fuel cell system controller dual power supply device controller according to claim 1, characterized in that: The V2 line (502) also passes through a MOSFET switch (504) equipped with an opening circuit and then is connected to the load through a Boost circuit (505).

4. A hydrogen fuel cell system controller dual power supply device controller according to claim 1, characterized in that: The start-up circuit of the V2 circuit (502) needs to be controlled by an external enable signal EN, and the start-up circuit enable signal of the V1 circuit (501) is derived from the V1 circuit (501) itself. When the V2 circuit (502) is a battery-type load, the V1 circuit (501) can also supplement energy for the V2 circuit (502) through the Charge circuit (506).

5. A hydrogen fuel cell system controller dual power supply device controller according to claim 1, characterized in that: When the V1 circuit (501) and the V2 circuit (502) exist simultaneously, the V1 circuit (501) can also turn off the MOSFET circuit (503) of the V2 circuit (502) by blocking the circuit, thereby turning off the MOSFET switch (504) so ​​that the V2 circuit (502) cannot output externally.

6. A hydrogen fuel cell system controller dual power supply device controller according to claim 1, characterized in that: The V1 line (501) can replenish energy for the V2 line (502) through the Charge circuit (506), thus greatly ensuring the long-term stability of the system.

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