阅读说明：本技术 一种双电源启动马达的控制电路及其控制方法 (Control circuit and control method of dual-power-supply starting motor ) 是由 陈建华 于 2019-12-03 设计创作，主要内容包括：本发明涉及启动马达技术领域,尤其涉及一种双电源启动马达的控制电路及其控制方法,其控制电路包括启动马达、电门启动开关、继电器、继电器线圈和第一电源,继电器线圈和电门启动开关相互串联后与第一电源并联连接,继电器和启动马达相互串联后与第一电源并联连接,还包括第二电源和单向导通元件,第二电源与第一电源并联连接,单向导通元件设置在第一电源的正极与第二电源的正极之间。在原有的结构基础上,增设第二电源和单向导通元件,实现在启动马达过程中由第二电源为继电器线圈供电,单向导通元件设置在第一电源的正极与第二电源的正极之间,防止第二电源向启动马达供电而导致压降,从而实现有效解决启动马达在启动过程中发生的打齿现象。(The invention relates to the technical field of starting motors, in particular to a control circuit of double-power-supply starting motors and a control method thereof, wherein the control circuit comprises a starting motor, an electric starting switch, a relay coil and a power supply, the relay coil and the electric starting switch are connected in series and then connected in parallel with the power supply, the relay and the starting motor are connected in series and then connected in parallel with a power supply, the control circuit also comprises a second power supply and a one-way conduction element, the second power supply is connected in parallel with a power supply, the one-way conduction element is arranged between the anode of the power supply and the anode of the second power supply, on the basis of the original structure, the second power supply and the one-way conduction element are additionally arranged, the effect that the relay coil is powered by the second power supply in the starting motor process, and the one-way conduction element is arranged between the anode of the power supply and the anode of the second power supply, so that the second power supply is prevented from supplying power to the starting motor to cause.)

The control circuit of kinds of dual supply starter motor, including starter motor, electricity starting switch, relay coil and power, relay coil and electricity starting switch establish ties each other after with power parallel connection, relay and starter motor establish ties each other after with power parallel connection, its characterized in that still includes second power and one-way conductive element, the second power and power parallel connection, one-way conductive element sets up between the positive pole of power and the positive pole of second power.

2. The control circuit of the dual-power-supply starting motor as claimed in claim 1, wherein the one-way conduction element is a diode, the anode of the diode is electrically connected with the anode of the th power supply, and the cathode of the diode is electrically connected with the anode of the second power supply.

3. The control circuit of the dual power supply starting motor as claimed in claim 2, wherein the terminal of the relay coil is electrically connected with the terminal of the electrical starting switch, the other terminal of the electrical starting switch is respectively electrically connected with the anode of the second power supply and the cathode of the diode, and the other terminal of the relay coil is electrically connected with the cathode of the second power supply and then grounded.

4. The control circuit of the dual-power-supply starting motor as claimed in claim 2, wherein the terminal of the starting motor is electrically connected with the terminal of the relay, the other terminal of the relay is electrically connected with the anode of the diode and the anode of the th power supply respectively, and the other terminal of the starting motor is electrically connected with the cathode of the th power supply and then grounded.

5. The control circuit of the dual-power-supply starting motor as claimed in claim 1, wherein the th power supply is 12V/18aH in specification, the second power supply is 12V/4aH in specification, and the relay is 12V/300 Ω in specification.

6. The control circuit of the dual-power-supply starting motor as claimed in claim 5, further comprising an external power supply, wherein the voltage of the external power supply is 12V, and the external power supply is electrically connected with the positive electrode of the th power supply.

7, method for controlling the control circuit of the dual power supply starting motor according to any of the claims 1-6- , comprising the steps of:

when the power starting switch is closed, the relay coil is powered by the second power supply;

when the relay coil is energized, the second power source maintains the relay coil energized, and the starter motor is energized by the th power source.

8. The method of claim 7, further comprising the steps of:

the th power supply charges the second power supply when the voltage of the second power supply is lower than the voltage of the th power supply.

Technical Field

The invention relates to the technical field of starting motors, in particular to a control circuit of dual-power starting motors and a control method thereof.

Background

The starting motor is electrically driven and is arranged on an engine to start a diesel engine or a gasoline engine, the starting motor reduces the trouble of manually starting the engine, is quick to start and reusable, is widely used, and is commonly used for starting an automobile engine, a generator, large engineering machinery and the like.

However, the starting motor is frequently subjected to tooth beating in the starting process, the front end part of the gear of the starting motor is easily abraded seriously and even broken in the past, and the phenomenon becomes extremely important and urgently needed problems in the starting motor development process.

Disclosure of Invention

The invention aims to solve the technical problem that the control circuit of dual-power starting motors is provided, so that the problem of tooth hitting of the starting motors in the starting process can be effectively solved.

In order to solve the above technical problems, the th technical solution adopted by the present invention is:

kind of dual supply starter motor's control circuit, including starter motor, electricity starting switch, relay coil and power, relay coil and electricity starting switch establish ties each other after with power parallel connection, relay and starter motor establish ties each other after with power parallel connection, still include second power and one-way conductive element, the second power and power parallel connection, one-way conductive element sets up between the positive pole of power and the positive pole of second power.

The invention has the beneficial effects that:

the control circuit of the dual-power starting motor is additionally provided with a second power supply and a one-way conduction element on the basis of the original structure, the second power supply is connected with an th power supply in parallel, the one-way conduction element is arranged between the anode of a th power supply and the anode of the second power supply, the fact that the relay coil is powered by the second power supply in the starting process of the motor is achieved, the one-way conduction element is arranged between the anode of a th power supply and the anode of the second power supply, voltage drop caused by the fact that the second power supply supplies power to the starting motor is prevented, the fact that power supply of the relay coil is not affected is further guaranteed, power supply of the starting motor is achieved by the th power supply, and therefore the problem that tooth hitting occurs in the starting process of the starting motor is effectively solved.

The second technical scheme adopted by the invention is as follows:

A control method of control circuit of dual-power starting motor, comprising the following steps:

when the power starting switch is closed, the relay coil is powered by the second power supply;

when the relay coil is energized, the second power source maintains the relay coil energized, and the starter motor is energized by the th power source.

The invention has the beneficial effects that:

according to the control method of the control circuit of the dual-power starting motor, when the power starting switch is closed, the second power supply supplies power to the relay coil, when the relay coil is attracted, the second power supply keeps supplying power to the relay coil, and the power supply supplies power to the starting motor, wherein the relay coil is independently supplied with power by the second power supply, so that the fact that the power supply of the relay coil is not influenced in the attraction process is further ensured, and the power supply supplies power to the starting motor is achieved, and therefore the problem of tooth punching of the starting motor in the starting process is effectively solved.

Drawings

FIG. 1 is a schematic diagram of the connection of the control circuit of dual-power-source starting motors of the invention;

FIG. 2 is a flow chart of the steps of the control method of the control circuit of the dual-power-supply starting motor of the invention;

description of reference numerals:

1. starting motor, 2, electricity starting switch, 3, relay, 4, relay coil;

5. th power supply, 6 th second power supply, 7 th unidirectional conducting element and 8 th external power supply.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1, the control circuit of kinds of dual power source starting motors provided by the invention comprises a starting motor, an electric starting switch, a relay coil and a power source, wherein the relay coil and the electric starting switch are connected in series and then connected in parallel with a power source, the relay and the starting motor are connected in series and then connected in parallel with a power source, the control circuit further comprises a second power source and a one-way conducting element, the second power source is connected in parallel with a power source, and the one-way conducting element is arranged between the positive pole of the power source and the positive pole of the second power source.

From the above description, the beneficial effects of the present invention are:

the control circuit of the dual-power starting motor is additionally provided with a second power supply and a one-way conduction element on the basis of the original structure, the second power supply is connected with an th power supply in parallel, the one-way conduction element is arranged between the anode of a th power supply and the anode of the second power supply, the fact that the relay coil is powered by the second power supply in the starting process of the motor is achieved, the one-way conduction element is arranged between the anode of a th power supply and the anode of the second power supply, voltage drop caused by the fact that the second power supply supplies power to the starting motor is prevented, the fact that power supply of the relay coil is not affected is further guaranteed, power supply of the starting motor is achieved by the th power supply, and therefore the problem that tooth hitting occurs in the starting process of the starting motor is effectively solved.

And , the one-way conduction element is a diode, the anode of the diode is electrically connected with the anode of the power supply, and the cathode of the diode is electrically connected with the anode of the second power supply.

As can be seen from the above description, the diode is used as a one-way conducting element to facilitate procurement and connection of specific circuits.

, the end of the relay coil is electrically connected with the end of an electric starting switch, the other end of the electric starting switch is respectively electrically connected with the anode of the second power supply and the cathode of the diode, and the other end of the relay coil is electrically connected with the cathode of the second power supply and then grounded.

As apparent from the above description, the second power supply is implemented to supply power to the relay coil through the above connection structure.

, the end of the starting motor is electrically connected with the end of the relay, the other end of the relay is respectively electrically connected with the anode of the diode and the anode of the th power supply, and the other end of the starting motor is electrically connected with the cathode of the th power supply and then grounded.

As can be seen from the above description, the th power supply is implemented to supply power to the starter motor through the above-mentioned connection structure.

, the specification of the power supply is 12V/18aH, the specification of the second power supply is 12V/4aH, and the specification of the relay is 12V/300 omega.

According to the description, the relay coil is powered by the second power supply and the starting motor is powered by the th power supply in the starting motor process through the parameter configuration of each component, so that the problem of tooth punching of the starting motor in the starting process is effectively solved.

, the device also comprises an external power supply, the voltage of the external power supply is 12V, and the external power supply is electrically connected with the anode of the power supply.

As can be seen from the above description, the external power source is supplied from the positive electrode to the th power source for charging, and the external power source is supplied from the th power source through the diode for charging the second power source.

Referring to fig. 2, the present invention further provides a control method of the control circuit of the dual-power-supply starting motor, comprising the following steps:

when the power starting switch is closed, the relay coil is powered by the second power supply;

when the relay coil is energized, the second power source maintains the relay coil energized, and the starter motor is energized by the th power source.

The invention has the beneficial effects that:

according to the control method of the control circuit of the dual-power starting motor, when the power starting switch is closed, the second power supply supplies power to the relay coil, when the relay coil is attracted, the second power supply keeps supplying power to the relay coil, and the power supply supplies power to the starting motor, wherein the relay coil is independently supplied with power by the second power supply, so that the fact that the power supply of the relay coil is not influenced in the attraction process is further ensured, and the power supply supplies power to the starting motor is achieved, and therefore the problem of tooth punching of the starting motor in the starting process is effectively solved.

Step , the method further comprises the following steps:

the th power supply charges the second power supply when the voltage of the second power supply is lower than the voltage of the th power supply.

However, because a unidirectional conducting element (namely the diode) is additionally arranged between the second power supply and the th power supply, the voltage drop caused by the fact that the second power supply supplies power to the starting motor is prevented, and further the power supply of the relay coil is not influenced, namely, only the th power supply is allowed to charge the second power supply, and even if the voltage of the th power supply is lower than that of the second power supply, the second power supply cannot reversely charge the th power supply, so that the power supply of the relay coil is not influenced.

Referring to fig. 1, an embodiment of the present invention is:

the inventor finds that phenomenon is caused by that a single power supply is adopted in the original system, starts to supply power to a relay coil in the process of starting the motor, and when a relay is attracted, the single power supply simultaneously supplies power to the starting motor, so that the voltage on the relay coil generates an instant voltage drop, and the starting motor is in a semi-linkage state, namely, because the voltage reaches critical points in starting, a gear oscillates back and forth and is in a semi-linkage state with a connecting gear, so that equipment cannot be started, and the gear of the motor is damaged.

Therefore, the inventor proposes a solution for the problem that the tooth hitting phenomenon often occurs in the starting process of the starting motor in the prior art, specifically as follows:

the invention provides a control circuit of double-power-supply starting motors, which comprises a starting motor 1, an electric starting switch 2, a relay 3, a relay coil 4 and a power supply 5, wherein the relay coil 4 and the electric starting switch 2 are connected in series and then are connected in parallel with the power supply 5, and the relay 3 and the starting motor 1 are connected in series and then are connected in parallel with the power supply 5;

the control circuit of the dual-power starting motor further comprises a second power supply 6 and a one-way conduction element 7, wherein the second power supply 6 is connected with the th power supply 5 in parallel, the one-way conduction element 7 is arranged between the anode of the th power supply 5 and the anode of the second power supply 6, the th power supply 5 is 12V/18aH in specification, the second power supply 6 is 12V/4aH in specification, and the relay 3 is 12V/300 omega in specification.

The control circuit of the dual-power starting motor further comprises an external power supply 8, the voltage of the external power supply 8 is 12V, the external power supply 8 is electrically connected with the positive electrode of the th power supply 5, the external power supply 8 is supplied to the th power supply 5 for charging through a positive electrode , and the other paths of the external power supply 8 charge the second power supply 6 through a diode.

The unidirectional conducting element 7 is a diode with the model number of 1N4007, the anode of the diode is electrically connected with the anode of an th power supply, and the cathode of the diode is electrically connected with the anode of a second power supply, so that a simple device of the diode is adopted as the unidirectional conducting element, and the purchasing and the connection of a specific circuit are facilitated.

Wherein, relay coil and electricity starting switch are parallelly connected with power parallel connection after establishing ties each other, specifically are:

an end of the relay coil 4 is electrically connected with a end of the electric starting switch 2, the other end of the electric starting switch 2 is respectively electrically connected with the anode of the second power supply 6 and the cathode of the diode, and the other end of the relay coil 4 is electrically connected with the cathode of the second power supply 6 and then grounded.

Wherein, after being connected in series with each other, the relay and the starting motor are connected with the th power supply in parallel, and the method specifically comprises the following steps:

the end of the starting motor 1 is electrically connected with the end of the relay 3, the other end of the relay 3 is respectively and electrically connected with the anode of the diode and the anode of the power supply 5, and the other end of the starting motor 1 is electrically connected with the cathode of the power supply 5 and then grounded.

The working principle of the control circuit of the dual-power starting motor is as follows:

the power starting switch is pressed down, the second power supply supplies power to the coil of the J relay, the coil of the J relay is electrified and attracted, the two ends of the large-current electric shock of the J relay are closed and conducted, the working power supplies at the two ends of the large-current electric shock of the J relay supply power to the power supply, and the starting motor starts to rotate to drive the gear to push the gasoline and diesel engine to start.

D1 diode plays the role of isolating the second power in the circuit, so that the motor does not consume electric energy in the process of starting the motor, and the J relay is always kept to provide energy for the J relay, and when the voltage of the second power is lower than power voltage, the power supply supplies electric power to the second power supply through D1 diode to supplement the energy, the external power supply can also charge the th power supply and the second power supply respectively.

Referring to fig. 2, an embodiment of the present invention is:

the invention also provides a control method of the control circuit of the dual-power-supply starting motor, which comprises the following steps:

when the power starting switch is closed, the relay coil is powered by the second power supply;

when the relay coil is energized, the second power source maintains the relay coil energized, and the starter motor is energized by the th power source.

Step , the method further comprises the following steps:

however, because a one-way conduction element (namely the diode) is additionally arranged between the second power supply and the th power supply, the second power supply is prevented from supplying power to the starting motor to cause voltage drop, and further the power supply of the relay coil is not influenced, namely, only the th power supply is allowed to charge the second power supply, and even if the voltage of the th power supply is lower than that of the second power supply, the second power supply cannot reversely charge the th power supply, so that the power supply of the relay coil is not influenced.

In summary, according to the control circuit and the control method of the dual-power-supply starting motor provided by the invention, based on the original structure, the second power supply and the one-way conduction element are additionally arranged, the second power supply is connected with the power supply in parallel, the one-way conduction element is arranged between the anode of the power supply and the anode of the second power supply, so that the second power supply supplies power to the relay coil in the starting process of the starting motor, the one-way conduction element is arranged between the anode of the power supply and the anode of the second power supply, the voltage drop caused by the power supply of the second power supply to the starting motor is prevented, the power supply of the relay coil is further ensured not to be influenced, the power supply supplies power to the starting motor, and therefore, the gear punching phenomenon of the starting motor in the starting process is effectively solved, when the power switch of the electric is turned on and off, the relay coil is supplied with power by the second power supply, when the relay coil is attracted, the second power supply keeps supplying power to the relay coil, and the power supply is further ensured not to be influenced in.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.