Bidirectional C-port charging and discharging device for generator set and generator set

Abstract

The utility model provides a bidirectional C-port charging and discharging device for a generator set and the generator set, and relates to the field of power generation equipment. When the generator set runs, the digital product is charged through the type-c port, and when the internal battery of the generator set is lack of electricity, the charger of the digital product is used for charging the internal battery of the generator set. The generator set comprises an engine, a generator, a battery, a rectification and voltage stabilization module, a bidirectional type-c module and an isolation charging module. When the generator set runs, a stable direct-current voltage is provided by connecting a motor winding with the rectifying and voltage-stabilizing module, and the bidirectional type-c module outputs a charging voltage required by a digital product after being connected with the direct-current voltage; when the generator set is shut down, a digital product charger can be connected with the bidirectional type-c module, and the bidirectional type-c module charges a battery in the generator set through the isolation charging module. According to the utility model, the functions of external fast charge output and internal fast charging are realized through the bidirectional type-c module.

Description

Technical Field

[0001] The utility model relates to the technical field of power generation equipment, in particular to a bidirectional C-port charging and discharging device for a generator set and the generator set. Background Art

[0002] Currently, small and medium-sized generator sets, due to their inherent convenience, are in huge market demand for backup power in power-scarce households and for outdoor camping. In addition to the basic demand for standard generators, users also have a strong demand for fast-charging capabilities for high-power digital devices, enabling extended battery life for laptops and other appliances in the field. At the same time, the batteries within generator sets are affected by user habits, often leading to battery depletion due to long periods of inactivity, resulting in the inability to start the unit electrically. In these cases, the only way to recharge the batteries is to purchase a wall charger, which is inconvenient. Utility Model Content

[0003] The purpose of the utility model is to provide a bidirectional C-port charging and discharging device for a generator set, which supports charging digital products through the generator set, and at the same time supports the function of using the charger of the digital product to replenish the power of the internal battery of the generator set when the generator set is stopped.

[0004] In order to achieve the above purpose, the present invention proposes the following technical solutions:

[0005] In the first aspect, a bidirectional Type-C port charging and discharging device for a generator set is proposed, comprising a rectifier and voltage regulator module, a bidirectional Type-C module, and an isolated charging module;

[0006] The input end of the rectifier and voltage regulator module is connected to the generator of the generator set, and the output end thereof is respectively connected to the bidirectional Type-C module and the isolated charging module, for supplying power to the bidirectional Type-C module and the isolated charging module;

[0007] The bidirectional type-c module is connected to the rectifier and voltage regulator module, and includes a type-c port for input and output through the type-c port;

[0008] The input end of the isolated charging module is respectively connected to the rectifier and voltage regulator module and the bidirectional type-C module, so as to charge the battery of the generator set.

[0009] Furthermore, the rectifier and voltage stabilization module includes a rectifier unit and a voltage stabilization unit; the rectifier unit includes a diode and a filter capacitor, and the voltage stabilization unit is a voltage stabilization circuit composed of a half-bridge LLC topology.

[0010] Furthermore, the bidirectional Type-C module includes an internal chip, a power supply circuit, a communication protocol circuit and a charging circuit;

[0011] The power supply circuit is used to supply power to the internal chip;

[0012] The communication protocol circuit is communicatively connected to the internal chip, and is used to receive external charging parameters or output internal charging parameters so that the bidirectional Type-C module outputs corresponding voltage and current;

[0013] The charging circuit is a bidirectional buck-boost circuit, including four MOS tubes and an inductor, which is used to turn on or off different MOS tubes according to different charging parameters; when the bidirectional Type-C module is in output mode, the bidirectional Type-C module performs forward conversion from the input side to the output side and outputs the corresponding voltage and current; when the bidirectional Type-C module is in input mode, the bidirectional Type-C module controls the MOS tube to reversely convert from the output side to the input side, performs voltage boosting, and then supplies the isolated charging module.

[0014] Furthermore, the isolated charging module includes a transformer and adopts a flyback topology structure, which is used to convert the low-voltage DC power received by the rectifier and voltage regulator module and the bidirectional type-C module into 14.4V DC power.

[0015] Furthermore, the bidirectional Type-C module further includes detecting the output of the rectifier and voltage regulator module, and automatically setting the working mode of the bidirectional Type-C module according to the output of the rectifier and voltage regulator module;

[0016] When it is detected that the rectifier and voltage regulator module has no output, the working mode of the bidirectional Type-C module is set to input mode;

[0017] When it is detected that the rectifier and voltage regulator module has an output, the working mode of the bidirectional Type-C module is set to the output mode.

[0018] Furthermore, the bidirectional Type-C module includes an indicator light unit for indicating the current working status of the bidirectional Type-C module; the current working status of the bidirectional Type-C module includes charging, discharging or fault.

[0019] In a second aspect, a generator set is provided, comprising an engine, a generator, a battery, and a bidirectional C-port charging and discharging device for the generator set;

[0020] The engine is used to provide power to the generator; the generator includes an AC winding, which is used to supply power to the rectifier and voltage stabilization module; the type-c port of the bidirectional C-port charging and discharging device of the generator set is used to supply power to the outside and charge the battery inside the generator set.

[0021] Furthermore, the input end of the rectifier and voltage regulator module is connected to the magnetic motor of the generator set, and the magnetic motor is installed on one side of the engine flywheel; when the engine is running, the magnetic motor supplies power to the rectifier and voltage regulator module.

[0022] From the above technical solutions, it can be seen that the technical solutions of the utility model have the following beneficial effects:

[0023] The utility model discloses a bidirectional C-port charging and discharging device for a generator set and a generator set, and the device includes a rectifier and voltage stabilizing module, a bidirectional type-c module and an isolation charging module; wherein, the input end of the rectifier and voltage stabilizing module is connected to the generator of the generator set, and its output end is respectively connected to the bidirectional type-c module and the isolation charging module, for supplying power to the bidirectional type-c module and the isolation charging module; the bidirectional type-c module is connected to the rectifier and voltage stabilizing module, and includes a type-c port for input and output through the type-c port; the input end of the isolation charging module is respectively connected to the rectifier and voltage stabilizing module and the bidirectional type-c module, for charging the battery of the generator set; that is, the utility model integrates the fast charging function required by digital products into the generator set, so that the digital products can quickly restore power through this function.

[0024] At the same time, in order to solve the problem that the generator set cannot be started when the internal battery is out of power, the user can use the adapter of the digital product to charge the internal battery of the generator set through the fast charging interface, which makes the use of the generator set more convenient; the generator set disclosed in the utility model realizes two functions through one interface, reduces the cost of using the generator set, and makes the generator set more intelligent and versatile.

[0025] It should be appreciated that all combinations of the foregoing concepts, as well as additional concepts described in greater detail below, may be considered to be part of the inventive subject matter of this disclosure, provided such concepts are not mutually inconsistent.

[0026] The foregoing and other aspects, embodiments, and features of the present invention will be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as the features and / or beneficial effects of the exemplary embodiments, will become apparent from the following description or through practice of specific embodiments according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are not intended to be drawn to scale. In the accompanying drawings, each identical or nearly identical component shown in various figures may be represented by the same reference numeral. For the sake of clarity, not every component is labeled in every figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, in which:

[0028] Figure 1 This is a detailed connection diagram of each module of the bidirectional C-port charging and discharging device for generator sets of the utility model;

[0029] Figure 2 It is a structural block diagram of the utility model generator set. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the common meanings understood by people with ordinary skills in the field to which the utility model belongs.

[0031] The words "first", "second" and similar terms used in the specification and claims of this utility model application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular forms of "a", "an" or "the" and similar words do not indicate a quantitative limitation, but rather indicate the presence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprises" include the features, wholes, steps, operations, elements and / or components listed after "include" or "comprises", and do not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, components and / or their collections.

[0032] As more and more digital products are becoming more and more versatile, with larger internal batteries and faster charging speeds, it is important to be able to provide a stable and reliable charging power source outdoors. Therefore, we have developed a new generator set with a Type-C interface, which has a two-way fast charging function and supports using the charger of digital products to charge the internal battery of the generator.

[0033] The bidirectional C-port charging and discharging device for a generator set disclosed in the present invention will be further specifically introduced below with reference to the accompanying drawings.

[0034] Combine Figure 1As shown, a bidirectional Type-C port charging and discharging device for a generator set includes a rectifier and voltage regulator module, a bidirectional Type-C module, and an isolated charging module. The input end of the rectifier and voltage regulator module is connected to the generator of the generator set, and its output end is respectively connected to the bidirectional Type-C module and the isolated charging module for supplying power to the bidirectional Type-C module and the isolated charging module. The bidirectional Type-C module is connected to the rectifier and voltage regulator module and includes a Type-C port for input and output through the Type-C port. The input end of the isolated charging module is respectively connected to the rectifier and voltage regulator module and the bidirectional Type-C module for charging the battery of the generator set. When used in a generator set, the bidirectional Type-C module supports charging digital products through the generator set, and also supports the function of using the digital product charger to replenish the power of the generator set's internal battery when the generator set is shut down.

[0035] Combine Figure 2 As shown, the generator set of the present invention includes an engine, a generator, and a battery, as well as the aforementioned bidirectional Type-C charging and discharging device for the generator set. The generator is the power source, which is converted into low-voltage DC power by a rectifier and voltage regulator module and then supplied to a bidirectional Type-C module and an isolated charging module, thereby charging both digital products and the battery within the generator set. When the generator set is shut down, the digital product charger is connected to the bidirectional Type-C module, which then supplies the charger output to the isolated charging module, thereby charging the battery within the generator set while the generator set is shut down.

[0036] Further integration Figure 1 As shown in the figure, the module structures of the bidirectional C-port charging and discharging device for the generator set are as follows; among them, the rectifier and voltage stabilization module consists of two parts, including a rectifier unit and a voltage stabilization unit, which first rectifies and then stabilizes the voltage; the rectifier unit includes a diode and a filter capacitor, which mainly rectifies directly through the diode, then connects to the filter capacitor for smoothing and filtering, and then inputs it to the voltage stabilization unit; the voltage stabilization unit is a step-down circuit in most cases, and a step-up and step-down circuit can also be used to adapt to more usage scenarios. In this case, the voltage stabilization unit adopts a step-down circuit, mainly using a half-bridge LLC topology to form a voltage stabilization circuit for conversion. The advantage of this topology is low loss, and the frequency is adjusted by a fixed duty cycle to achieve full soft switching control, which greatly reduces the heat dissipation requirements and reduces the difficulty of EMI passing the whole machine.

[0037] The bidirectional type-c module includes an internal chip and three components. The first is the power supply circuit, which supplies power to the internal chip of the entire bidirectional type-c module. The internal chip model can be SC8815; the second is the communication protocol circuit, which can communicate with digital products or chargers through the CC1 or CC2 pins of the internal chip. The digital product informs the bidirectional type-c module of the charging parameters it needs, and then the bidirectional type-c module outputs the currently required voltage and current through the charging circuit; the charger informs the bidirectional type-c module of its output capacity so that it can use the maximum power to charge the internal battery of the generator set. The third is the charging circuit. The structure of the charging circuit in this case is a bidirectional buck-boost circuit, which is implemented by 4 MOS tubes plus an inductor. Different MOS tubes are turned on or off for different modes. Specifically, when the bidirectional type-c module is in output mode, the bidirectional type-c module performs forward conversion from the input side to the output side according to the charging requirements of the digital product, and outputs the corresponding voltage and current; when the bidirectional type-c module is in input mode, the bidirectional type-c module controls the MOS tube to reversely convert from the output side to the input side, such as boosting the 5V voltage output by the charger to about 15V to supply the isolated charging module.

[0038] As shown in the figure, the isolated charging module has two inputs: one is the low-voltage DC output of the rectifier and voltage regulator module, and the other is the low-voltage DC output of the digital product charger after being boosted by the bidirectional Type-C module. The isolated charging module contains a transformer and adopts a flyback topology, which is low in cost. The isolated charging module is equipped with an isolated voltage regulator circuit and an isolated charging circuit to convert the DC power of the two inputs into 14.4V DC, thereby charging the battery inside the generator set.

[0039] The utility model discloses a bidirectional Type-C charging and discharging device for a generator set, and its bidirectional Type-C module also includes detecting the output of the rectifier and voltage regulator module, and automatically setting the working mode of the bidirectional Type-C module according to the output of the rectifier and voltage regulator module; for example, if the output of the rectifier and voltage regulator module cannot be detected, then the generator set must be in a shutdown state at this time, so the working mode of the bidirectional Type-C module is set to the input mode; similarly, during the operation of the generator set, the rectifier and voltage regulator module has an output, and the working mode of the bidirectional Type-C module is set to the output mode. Even if a charger is connected, the bidirectional Type-C module will not respond.

[0040] To facilitate the application of the bidirectional Type-C port charging and discharging device on the generator set, the bidirectional Type-C module includes an indicator light unit for indicating the current working status of the bidirectional Type-C module; the current working status of the bidirectional Type-C module includes charging, discharging or fault.

[0041] The working process of the generator set disclosed by the present invention is as follows: after the generator set is started, the rectifier and voltage stabilization module is energized through the AC output winding of the generator, and the low-voltage AC power output by the generator is converted into stable low-voltage DC power through rectification, filtering and voltage stabilization. One path of this low-voltage DC power is directly supplied to the isolation charging module for charging the battery inside the generator set; the other path is supplied to the bidirectional type-c module, and the bidirectional type-c module converts this DC power into the DC power required by digital products through the charging circuit according to the communication protocol. At this time, the generator can charge the digital products; when the generator set is shut down, the charger of the digital product can supply the power output by the charger to the isolation charging module through the bidirectional type-c module, and at this time, the battery inside the generator set can be charged through the isolation charging module; the bidirectional type-c module determines whether the current mode is output mode or input mode by detecting whether the rectifier and voltage stabilization module has output, so that the generator set can only be in output mode when it is running and can only be in input mode when the generator set is shut down, making the generator set safer to use.

[0042] While the present invention has been described above with reference to preferred embodiments, this is not intended to limit the present invention. Persons skilled in the art will readily appreciate that various modifications and variations may be made without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A bidirectional C-port charging and discharging device for a generator set, characterized in that: Including rectifier and voltage regulator module, bidirectional type-c module and isolated charging module; The input end of the rectifier and voltage regulator module is connected to the generator of the generator set, and the output end thereof is respectively connected to the bidirectional Type-C module and the isolated charging module, for supplying power to the bidirectional Type-C module and the isolated charging module; The bidirectional type-c module is connected to the rectifier and voltage regulator module, and includes a type-c port for input and output through the type-c port; The input end of the isolated charging module is respectively connected to the rectifier and voltage regulator module and the bidirectional type-C module, so as to charge the battery of the generator set.

2. The bidirectional C-port charging and discharging device for a generator set according to claim 1, characterized in that: The rectifier and voltage stabilization module includes a rectifier unit and a voltage stabilization unit; the rectifier unit includes a diode and a filter capacitor, and the voltage stabilization unit is a voltage stabilization circuit composed of a half-bridge LLC topology.

3. The bidirectional C-port charging and discharging device for a generator set according to claim 1, characterized in that: The bidirectional Type-C module includes an internal chip, a power supply circuit, a communication protocol circuit and a charging circuit; The power supply circuit is used to supply power to the internal chip; The communication protocol circuit is communicatively connected to the internal chip, and is used to receive external charging parameters or output internal charging parameters so that the bidirectional Type-C module outputs corresponding voltage and current; The charging circuit is a bidirectional buck-boost circuit, including four MOS tubes and an inductor, which is used to turn on or off different MOS tubes according to different charging parameters; when the bidirectional Type-C module is in output mode, the bidirectional Type-C module performs forward conversion from the input side to the output side and outputs the corresponding voltage and current; when the bidirectional Type-C module is in input mode, the bidirectional Type-C module controls the MOS tube to reversely convert from the output side to the input side, performs voltage boosting, and then supplies the isolated charging module.

4. The bidirectional C-port charging and discharging device for a generator set according to claim 1, characterized in that: The isolated charging module includes a transformer and adopts a flyback topology structure, which is used to convert the low-voltage DC power input by the rectifier and voltage regulator module and the bidirectional type-C module into 14.4V DC power.

5. The bidirectional C-port charging and discharging device for a generator set according to claim 2, characterized in that: The bidirectional Type-C module further includes detecting the output of the rectifier and voltage regulator module, and automatically setting the working mode of the bidirectional Type-C module according to the output of the rectifier and voltage regulator module; When it is detected that the rectifier and voltage regulator module has no output, the working mode of the bidirectional Type-C module is set to input mode; When it is detected that the rectifier and voltage regulator module has an output, the working mode of the bidirectional Type-C module is set to the output mode.

6. The bidirectional C-port charging and discharging device for a generator set according to claim 1, characterized in that: The bidirectional Type-C module includes an indicator light unit for indicating the current working status of the bidirectional Type-C module; the current working status of the bidirectional Type-C module includes charging, discharging or fault.

7. A generator set comprising an engine, a generator and a battery, characterized in that: It also includes the bidirectional C-port charging and discharging device for a generator set according to any one of claims 1 to 6; The engine is used to provide power to the generator; the generator includes an AC winding, which is used to supply power to the rectifier and voltage stabilization module; the type-c port of the bidirectional C-port charging and discharging device of the generator set is used to supply power to the outside and charge the battery inside the generator set.

8. The generator set according to claim 7, characterized in that: The input end of the rectifier and voltage regulator module is connected to the magnetic motor of the generator set, and the magnetic motor is installed on one side of the engine flywheel; when the engine is running, the magnetic motor supplies power to the rectifier and voltage regulator module.

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