CN214480272U

CN214480272U - Power supply system of direct current generator controller

Info

Publication number: CN214480272U
Application number: CN202120643861.7U
Authority: CN
Inventors: 袁敏; 刘海琼; 陈培新; 周琦
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-10-22
Anticipated expiration: 2031-03-30

Abstract

The utility model is suitable for a DC generator's technical field discloses a electrical power generating system of DC generator controller. The utility model provides a power supply system of a DC generator controller, which comprises an engine and a generator driven by the engine; the method is characterized in that: the generator is connected with a power supply system, the power supply system comprises a control circuit, and the control circuit comprises an emitter follower and an automatic voltage-increasing and reducing circuit; the control circuit outputs stable voltage to the electric appliance. The DC generator is normally started by outputting stable 12VDC through the power supply system.

Description

Power supply system of direct current generator controller

Technical Field

The utility model relates to a dc generator's technical field, in particular to dc generator controller's electrical power generating system.

Background

With the rapid development of society and science and technology, because of safety considerations, an air conditioner used by a truck is a 24V dc air conditioner, when a truck driver takes a rest at night in summer or in summer, if an automobile engine is started to supply power to the dc air conditioner, it is not economical, after the 24V dc generator is used to supply power to the dc air conditioner, the cost is very low, and in the case of a battery occurrence condition, the 24V dc generator is started by hand pulling, because in the hand pulling state, only about 10VDC voltage can be supplied, and in this case, the controller of the dc generator needs to supply stable 12VDC direct current to normally start the 24V dc generator.

Chinese utility model publication No. CN203933482U discloses an AC-AC inverter generator system, which comprises an intermediate frequency permanent magnet multi-stage generator driven by an engine for generating electric energy,

the intermediate-frequency permanent magnet type multistage generator is internally provided with a control winding and a three-phase winding; the AC-AC inverter is used for controlling the four-wire stepping motor to move and adjusting the frequency of alternating current generated by the medium-frequency permanent magnet type multistage generator; the output end of the four-wire stepping motor is connected with a throttle valve of the engine carburetor and is used for controlling a throttle valve switch of the engine carburetor; the AC-AC inverter comprises a controller, a controllable bridge circuit connected with the output end of the three-phase winding, and a smoothing filter circuit electrically connected with the output end of the controllable bridge circuit,

the output end of the control winding is connected with the controller, and the output end of the controller is respectively and electrically connected with the controllable bridge circuit and the four-wire stepping motor. This patent actually requires direct current on board by providing only one way to output alternating current.

Disclosure of Invention

An object of the utility model is to overcome above-mentioned prior art not enough, provide a dc generator controller's electrical power generating system, through having set up control circuit, it aims at solving the technical problem that output voltage is unstable among the prior art and leads to the unable start-up of dc generator.

In order to achieve the above object, the present invention provides a power supply system of a dc generator controller, comprising an engine and a generator driven by the engine; the method is characterized in that: the generator is connected with a power supply system, the power supply system comprises a control circuit, and the control circuit comprises an emitter follower and an automatic voltage-increasing and reducing circuit; the control circuit outputs stable voltage to the electric appliance.

Preferably, the generator is an intermediate-frequency permanent magnet multi-pole generator, and a three-phase winding is arranged in the generator.

Preferably, the electrical appliance comprises one or more of a solenoid valve, a relay and a five-wire stepping motor.

Preferably, the output of the control circuit has a stable voltage of 12V.

Preferably, the emitter follower comprises a darlington tube.

Preferably, the base of the Darlington tube is clamped by a voltage stabilizing diode.

Preferably, the automatic voltage boosting and reducing circuit comprises a main control chip, and the main control chip is provided with current limiting protection.

Preferably, the main control chip is XL 6008.

Preferably, the control circuit outputs 12V/2A instantaneously when the input voltage is 7 VDC.

Compared with the prior art, the utility model provides a pair of dc generator controller's electrical power generating system's beneficial effect does:

the utility model discloses compare with the 24V DC generator controller power that uses on the market, can not change the pull-by-hand generator and start successfully under the prerequisite of the multipolar generator of intermediate frequency permanent magnetism, give after sale reduce cost, reduced the cost of manufacture of the multipolar generator of intermediate frequency permanent magnetism simultaneously (some solutions are to increase a winding on the multipolar generator of intermediate frequency permanent magnetism) and reduce the fault probability.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic diagram of a power supply system of a dc generator controller according to an embodiment of the present invention.

Fig. 2 is a circuit diagram of a power supply system of a dc generator controller according to an embodiment of the present invention.

In the figure: 1. an engine; 2. a generator; 3. a power supply system; 31. an emitter follower; 32. an auto buck-boost circuit; 4. an electromagnetic valve; 5. a relay; 6. five-wire stepping motor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, an embodiment of the present invention provides a power supply system of a dc generator controller, including an engine 1 and a generator 2 driven by the engine 1. The generator 2 is connected to a power system 3, and the power system 3 includes a control circuit including an emitter follower 31 and an auto buck-boost circuit 32. The control circuit outputs a stable voltage to the electrical appliance.

Specifically, a 24V dc generator is generally used in an automobile. A power supply system of a 24V direct current generator controller is used for providing stable control power supply for the whole circuit work of an electric appliance when a direct current generator is started by hand pulling. The voltage output from the generator 2 can be stabilized to output a stable voltage after passing through the power supply system 3. The emitter follower 31 and the auto-buck circuit 32 can make the voltage output to the consumer always stable.

Referring to fig. 1, in an alternative embodiment, the generator 2 is an intermediate frequency permanent magnet multi-pole generator, and a three-phase winding is provided in the generator 2. The output end of the three-phase winding is connected with the power supply system 3, and provides an input voltage for the power supply system 3.

Referring to fig. 1, in an alternative embodiment, the electrical consumer comprises one or more of a solenoid valve 4, a relay 5, and a five-wire stepper motor 6. Specifically, the solenoid valve 4, relay 5 and five-wire stepper motor 6 all receive 12 VDC. Two of the five-wire stepping motors 6 are generally used. The 12VDC electromagnetic valve is connected with a gasoline oil circuit of the whole direct current generator and controls the supply of gasoline; a 12VDC relay connected with an igniter of the engine and used for controlling flameout; one output end of each of the two 12VDC five-wire stepping motors is connected with a throttle valve of the engine carburetor and used for controlling a throttle valve switch of the engine carburetor, and the other output end of each of the two 12VDC five-wire stepping motors is connected with a choke valve of the engine carburetor and used for controlling a choke valve switch of the engine carburetor.

Referring to fig. 2, in an alternative embodiment, the output of the control circuit has a stable voltage of 12V.

Referring to fig. 2, in an alternative embodiment, the emitter follower 31 comprises a darlington tube.

Referring to fig. 2, in an alternative embodiment, the base of the darlington transistor is clamped with a zener diode.

Referring to fig. 1 and 2, in an alternative embodiment, the auto-buck/boost circuit 32 includes a main control chip with current limiting protection.

Referring to fig. 2, in an alternative embodiment, the master chip is XL 6008.

In an alternative embodiment, the control circuit outputs 12V/2A instantaneously when the input voltage is 7 VDC.

The specific working process is as follows:

the engine drives an intermediate-frequency permanent magnet type multistage generator for generating electric energy, a three-phase winding is arranged in the intermediate-frequency permanent magnet type multistage generator, and the output end of the three-phase winding is electrically connected with a power supply system of a 24V direct current generator controller. The power supply system of the 24V direct current generator controller is used for providing stable control power supply for the whole circuit of the controller to work when the direct current generator is manually started, and is mainly used for a 12VDC electromagnetic valve, a 12VDC relay and a 12VDC five-wire stepping motor; the 12VDC electromagnetic valve is connected with a gasoline oil circuit of the whole direct current generator and controls the supply of gasoline; a 12VDC relay connected with an igniter of the engine and used for controlling flameout; one output end of each of the two 12VDC five-wire stepping motors is connected with a throttle valve of the engine carburetor and used for controlling a throttle valve switch of the engine carburetor, and the other output end of each of the two 12VDC five-wire stepping motors is connected with a choke valve of the engine carburetor and used for controlling a choke valve switch of the engine carburetor. The power supply system of the 24V DC generator controller has two circuits, namely a front-stage circuit and a rear-stage circuit. The front stage circuit includes an emitter follower 31, and the rear stage circuit includes an auto buck-boost circuit 32. The front-end circuit comprises a 2K (R1) resistor, a 24V (D3) voltage stabilizing diode and a Darlington tube to form an emitter follower, the 2K (R1) resistor is used for limiting the base electrode current of the Darlington tube, the generator can generate an instantaneous 48VDC condition, and the 2K (R1) resistor is used for protecting the Darlington tube from being damaged. The existence of a 24V (D3) voltage stabilizing diode ensures that the voltage of an emitter of a Darlington tube is not higher than 23.3V, and plays a role in protecting a rear-stage automatic buck-boost circuit, the Darlington tube is selected to be resistant to voltage of 100V and have current of 8A, and meanwhile, the MJD122(Q1) of a built-in freewheeling diode can provide strong current for a rear-stage circuit while ensuring the voltage resistance, and the built-in diode prevents the MJD122(Q1) from being damaged due to parasitic inductance; the main control chip of the back stage circuit adopts XL6008(U1) of Shanghai Kenlong, the input voltage range is 3.6V-32VDC, and the maximum switching current is 3A. The chip has a current-limiting protection function, and damage caused by poor input contact is prevented. An XL6008(U1) is used for forming a SEPIC Buck-Boost structure circuit, 12V/2A output can be obtained under the condition of inputting 3.6V, stable electric quantity is provided for the controller at the moment of starting an engine by hand pulling, the current required by a 12V relay in the whole controller is 20MA, the current required by two 12V stepping motors is 500MA, the current required by an electromagnetic valve is 500MA, the current required by other parts is 40MA, and the design margin of the whole power circuit is 2A (namely 2000 MA), so that all requirements under the condition of starting the generator by hand pulling can be supported. Practical tests also meet the requirements.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. A power supply system of a DC generator controller comprises an engine (1) and a generator (2) driven by the engine (1); the method is characterized in that: the generator (2) is connected with a power supply system (3), the power supply system (3) comprises a control circuit, and the control circuit comprises an emitter follower (31) and an automatic step-up and step-down circuit (32); the control circuit outputs stable voltage to the electric appliance.

2. A power supply system for a dc generator controller as defined in claim 1, wherein: the generator (2) is an intermediate-frequency permanent magnet type multipole generator, and a three-phase winding is arranged in the generator (2).

3. A power supply system for a dc generator controller as defined in claim 1, wherein: the electrical appliance comprises one or more of an electromagnetic valve (4), a relay (5) and a five-wire stepping motor (6).

4. A power supply system for a dc generator controller as defined in claim 1, wherein: the output of the control circuit has a stable voltage of 12V.

5. A power supply system for a dc generator controller as defined in claim 1, wherein: the emitter follower (31) comprises a Darlington tube.

6. The power supply system of a dc generator controller as set forth in claim 5, wherein: the base of the Darlington tube is clamped by a voltage stabilizing diode.

7. A power supply system for a dc generator controller as defined in claim 1, wherein: the automatic voltage-increasing and voltage-reducing circuit (32) comprises a main control chip, and the main control chip is provided with current-limiting protection.

8. A power supply system for a dc generator controller as defined in claim 7, wherein: the main control chip is XL 6008.

9. A power supply system for a dc generator controller as defined in claim 1, wherein: the control circuit outputs 12V/2A instantly when the input voltage is 7 VDC.