Fast-charging high-power power supply

Abstract

The utility model provides a fast-charging high-power power supply, and relates to the field of power supplies, the fast-charging high-power power supply comprises a power supply body and a charging module, the charging module comprises a commercial power charging interface, a filter, a rectifier, an inductor, a first controller, a second controller, a resonance circuit and a power supply connecting port, according to the utility model, the mains supply can be filtered and sorted through the filter and the rectifier, then the mains supply passes through the inductor and the resonance circuit, and then the power supply body is charged through the resonance circuit, so that the power supply is high in power density, the size and the cost are reduced, and meanwhile, higher environmental protection efficiency is realized.

Description

Technical Field

[0001] The present application relates to the field of power supplies, and specifically, to a fast-charging high-power power supply. Background Art

[0002] With the development of new energy vehicles, high-power power supplies have insufficient charging power during charging and generate severe heat, so there is a need to improve the current charging module of high-power power supplies. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a fast-charging, high-power power supply that can solve the above-mentioned technical problems.

[0004] An embodiment of the present application provides a fast-charging high-power power supply, including a power supply body and a charging module, the charging module including a mains charging interface, a filter, a rectifier, an inductor, a first controller, a second controller, a resonant circuit and a power connection port, the input end of the mains charging interface is connected to the mains, the output end of the mains charging interface is connected to the input end of the filter, the output end of the filter is connected to the input end of the rectifier, the output end of the rectifier is electrically connected to the first controller, the rectifier is connected to the input end of the resonant circuit through the inductor, the input end of the resonant circuit is connected to the output end of the first controller, the output end of the resonant circuit is electrically connected to the second controller, and the resonant circuit is connected to the power supply body through the power connection port.

[0005] Preferably, the resonant circuit includes a first transistor Q1, a second transistor Q2, a diode D5, a capacitor C1, a third transistor Q5, a fourth transistor Q6, a transformer T1, a MOS transistor Q3, and a MOS transistor Q4, and the first transistor Q1, the second transistor Q2, the third transistor Q5, and the fourth transistor Q6 are all gallium nitride transistors.

[0006] Preferably, a fuse is provided between the AC charging interface and the filter.

[0007] Preferably, the model of the first controller and the second controller is HR1211.

[0008] Preferably, the diode D5 is a light emitting diode, and the diode D5 is installed at the outer end of the power supply body.

[0009] Beneficial effects of the utility model:

[0010] The utility model provides a fast-charging high-power power supply, including a power supply body and a charging module. The charging module includes a mains charging interface, a filter, a rectifier, an inductor, a first controller, a second controller, a resonant circuit and a power connection port. The input end of the mains charging interface is connected to the mains, the output end of the mains charging interface is connected to the input end of the filter, the output end of the filter is connected to the input end of the rectifier, the output end of the rectifier is electrically connected to the first controller, the rectifier is connected to the input end of the resonant circuit through the inductor, the input end of the resonant circuit is connected to the output end of the first controller, the output end of the resonant circuit is electrically connected to the second controller, and the resonant circuit is connected to the power supply body through the power connection port. The utility model can filter and sort the mains through the filter and the rectifier, and then pass it through the inductor and the resonant circuit, and then perform voltage reduction processing through the resonant circuit, and then charge the power supply body. The utility model has high power density, reduces volume and reduces cost, and achieves higher environmental efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 This is a circuit diagram of the utility model. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0015] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0016] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0017] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0018] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0019] like Figure 1As shown, a fast-charging high-power power supply includes a power supply body and a charging module, wherein the charging module includes a mains charging interface, a filter, a rectifier, an inductor, a first controller, a second controller, a resonant circuit and a power connection port, wherein the input end of the mains charging interface is connected to the mains, the output end of the mains charging interface is connected to the input end of the filter, the output end of the filter is connected to the input end of the rectifier, the output end of the rectifier is electrically connected to the first controller, the rectifier is connected to the input end of the resonant circuit through the inductor, the input end of the resonant circuit is connected to the output end of the first controller, the output end of the resonant circuit is electrically connected to the second controller, and the resonant circuit is connected to the power supply body through the power connection port. The utility model can filter and sort the mains through the filter and the rectifier, and then pass it through the inductor and the resonant circuit, and then perform voltage reduction processing through the resonant circuit, and then charge the power supply body. The utility model has high power density, reduces volume and reduces cost, while achieving higher environmental efficiency.

[0020] like Figure 1 As shown, in this embodiment, the resonant circuit includes a first transistor Q1, a second transistor Q2, a diode D5, a capacitor C1, a third transistor Q5, a fourth transistor Q6, a transformer T1, a MOS tube Q3, and a MOS tube Q4. The first transistor Q1, the second transistor Q2, the third transistor Q5, and the fourth transistor Q6 are all gallium nitride transistors. The utility model uses gallium nitride transistors to increase the AC voltage output by the mains to a bus DC voltage of 400V, supports switching between CCM and DCM working modes, and reduces unnecessary power loss.

[0021] like Figure 1 As shown, the utility model uses two parallel-connected gallium nitride transistors and a silicon carbide switching diode, and the high frequency and nearly zero reverse recovery current electrical characteristics of the two further ensure the high efficiency of the system.

[0022] The resonant mode can provide higher efficiency while providing a sinusoidal voltage or current to the MOSFET and switching it close to the zero crossing point of the sinusoidal voltage or current, thereby greatly reducing the power consumption of the MOSFET, achieving a higher switching frequency, and increasing the power density.

[0023] In this embodiment, in order to ensure the safety of charging, a fuse is provided between the AC charging interface and the filter.

[0024] Specifically, the model of the first controller and the second controller is HR1211. R1211 is a multi-mode PFC and current mode LLC digital combination controller. Through the UART port, the controller can be flexibly configured according to actual functional requirements to improve system stability and response speed.

[0025] like Figure 1 As shown, in this embodiment, the diode D5 is a light emitting diode, and the diode D5 is installed at the outer end of the power supply body. The diode D5 of the utility model is in a normally light state during the charging process.

[0026] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fast-charging high-power power supply, characterized in that: It includes a power supply body and a charging module. The charging module includes a mains charging interface, a filter, a rectifier, an inductor, a first controller, a second controller, a resonant circuit and a power connection port. The input end of the mains charging interface is connected to the mains, the output end of the mains charging interface is connected to the input end of the filter, the output end of the filter is connected to the input end of the rectifier, the output end of the rectifier is electrically connected to the first controller, the rectifier is connected to the input end of the resonant circuit through the inductor, the input end of the resonant circuit is connected to the output end of the first controller, the output end of the resonant circuit is electrically connected to the second controller, and the resonant circuit is connected to the power supply body through the power connection port.

2. A fast-charging high-power power supply according to claim 1, characterized in that: The resonant circuit includes a first transistor Q1, a second transistor Q2, a diode D5, a capacitor C1, a third transistor Q5, a fourth transistor Q6, a transformer T1, a MOS transistor Q3, and a MOS transistor Q4. The first transistor Q1, the second transistor Q2, the third transistor Q5, and the fourth transistor Q6 are all gallium nitride transistors.

3. A fast-charging high-power power supply according to claim 1, characterized in that: A fuse is arranged between the mains charging interface and the filter.

4. A fast-charging high-power power supply according to claim 1, characterized in that: The model of the first controller and the second controller is HR1211.

5. A fast-charging high-power power supply according to claim 2, characterized in that: The diode D5 is a light emitting diode and is installed at the outer end of the power supply body.

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