A DC power supply sequence output distribution box for electric servo mechanism

Abstract

The present invention provides a DC power supply sequence output distribution box for an electric servo mechanism, comprising a distribution box body, the distribution box body comprising an input circuit, a control module, an output circuit and a box body, a bracket is fixed to the top of the box body, a pillar is installed inside the box body, a resistor plate assembly is installed on the top of the pillar, a shock-absorbing pad is fixed to the bottom of the box body, one side of the box body is installed with a one-way distribution interface and a two-way distribution interface, the other side of the box body is installed with a control output interface and a steering gear distribution interface, a panel is installed on the top of the box body, a terminal 1 and a terminal 2 are installed on the panel, and a power cord is installed on the panel. The DC power supply sequence output distribution box for an electric servo mechanism avoids voltage errors when powered on when in use, and different sockets are used for each input and output to avoid voltage input cross errors.

Description

Technical Field

[0001] The invention relates to the field of power distribution box equipment, in particular to a power distribution box for sequential output of direct current power supply of an electric servo mechanism. Background Art

[0002] The electric servo mechanism consists of a controller and an actuator. The controller provides control instructions to the actuator according to the test requirements and closed-loop feedback results. The actuator acts according to the controller's control instructions and feeds back the working conditions to the controller. During the test, two power supplies are required to distribute power to the servo mechanism, of which a low-voltage, low-current power supply is used to distribute power to the controller, and a high-voltage, high-current power supply is used to distribute power to the actuator.

[0003] Since the controller needs to issue instructions based on the closed-loop feedback results, special attention should be paid when distributing and disconnecting power. First, distribute power to the controller, then to the actuator. When disconnecting power, the actuator should be disconnected first, then the controller. If the power distribution or disconnection sequence is wrong or the positive and negative poles of the input power are connected incorrectly, the electric servo mechanism will be open-loop or damaged, and the actuator will lose control without control instructions, causing the transmission part to exceed the stroke, get stuck, be damaged, and the electronic components to burn out, causing large economic losses. Therefore, the power distribution equipment is designed to ensure that there will be no power distribution errors caused by incorrect switching sequences, and reduce product damage caused by work errors. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an electric servo mechanism DC power supply sequential output distribution box to solve the problems raised in the above background technology. The present invention has a novel structure. The device avoids voltage errors when power is turned on. Different sockets are used for each input and output to avoid voltage input cross errors.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a DC power supply sequential output distribution box for an electric servo mechanism, comprising a distribution box body, the distribution box body comprising an input circuit, a control module, an output circuit and a box body, a bracket is fixed to the top of the interior of the box body, a pillar is installed inside the box body, a resistor plate assembly is installed on the top of the pillar, a shock-absorbing pad is fixed to the bottom of the box body, a one-way distribution interface and a two-way distribution interface are installed on one side of the box body, a control output interface and a servo gear distribution interface are installed on the other side of the box body, a panel is installed on the top of the box body, a terminal 1 and a terminal 2 are installed on the panel, and a power cord 1 is installed on the panel.

[0006] As a preferred embodiment of the present invention, the power lines 1 are connected via power lines 2, and the resistor plate assembly includes a resistor plate, and a bidirectional welding piece is installed on the resistor plate.

[0007] As a preferred embodiment of the present invention, the bidirectional welding pieces are fixed on the resistor board by rivets, resistors are installed between the bidirectional welding pieces, and a diode is installed on the resistor board.

[0008] As a preferred embodiment of the present invention, the input circuit is used for inputting two DC power supply electrical signals, the control module is used for controlling the two DC power supply electrical signals to be powered on and off in a preset order, the control module is used for controlling whether the positive and negative poles of the input power supply are correctly connected, and there is no output when incorrectly connected, and the output circuit is used for outputting the two power supply electrical signals to the actuator and controller of the electric servo mechanism.

[0009] As a preferred embodiment of the present invention, the input circuit is divided into one input and two inputs, the one input is connected to power supply one, usually a low voltage and low current control power supply, and the two inputs are connected to power supply two, usually a high voltage and high current power supply.

[0010] As a preferred embodiment of the present invention, the control module includes a first voltage and a second voltage, the first voltage is connected in parallel, and one group of two four-way switches are connected in parallel, and the second voltage is connected in series, and two groups of two four-way switches are connected in series.

[0011] As a preferred embodiment of the present invention, the control module includes a first circuit. After the first circuit is turned on, if the positive and negative poles are correct, the light-emitting diode at the output end will light up and the voltage at the side output end will be output normally. If the positive and negative poles are connected incorrectly, the light-emitting diode at the output end will not light up, and the diode at the output end will be forward-conducted, so that the input power supply is in a short-circuit protection state, and there is no voltage output at the output end.

[0012] As a preferred embodiment of the present invention, the output circuit includes one output and two outputs, wherein the one output is connected to the electric servo mechanism controller to provide it with control power of lower voltage and smaller current, and the two outputs are connected to the electric servo mechanism actuator to provide power power of higher voltage and larger current.

[0013] As a preferred implementation manner of the present invention, after the input current and the output circuit are confirmed to be correctly connected, they are controlled by switch 1 and switch 2 of the control module.

[0014] As a preferred embodiment of the present invention, when power is turned on, no matter whether switch one or switch two is turned on first, one circuit is powered on first and then the second circuit is powered on; when power is turned off, no matter whether switch one or switch two is turned off first, the two circuits are powered off first and then the one circuit is powered off.

[0015] Beneficial effects of the present invention: An electric servo mechanism DC power supply sequential output distribution box of the present invention comprises a bracket; a box body; a vibration damping pad; a resistor plate assembly; a support; a one-way power distribution interface; a two-way power distribution interface; a control output interface; a steering gear power distribution interface; a power cord; a panel; a first terminal; a second terminal; a power cord; a bidirectional welding piece; a rivet; a resistor; a diode; and a resistor plate.

[0016] 1. This electric servo mechanism DC power supply sequential output distribution box avoids voltage errors when power is turned on. Different sockets are used for each input and output to avoid voltage input cross errors.

[0017] 2. The DC power supply sequential output distribution box of the electric servo mechanism is realized by using two four-way switches, two of which are a group of positive and negative power supplies. The first voltage is connected in parallel, and one group of two four-way switches is connected in parallel. Then the second voltage is connected in series, and two groups of two four-way switches are connected in series. In this way, when any of the two switches is turned on during the process, the first one is energized, and then the second one is powered after the other switch is turned on. When any switch is turned off, the second one is powered off, and when the second switch is turned off, the first one is powered off. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the main view of a DC power supply sequential output distribution box of an electric servo mechanism of the present invention;

[0019] Figure 2 It is a structural schematic diagram of a left view of a DC power sequential output distribution box of an electric servo mechanism of the present invention;

[0020] Figure 3 It is a right view structural schematic diagram of a DC power supply sequential output distribution box of an electric servo mechanism of the present invention;

[0021] Figure 4 It is a top view structural schematic diagram of a DC power supply sequential output distribution box of an electric servo mechanism of the present invention;

[0022] Figure 5 A schematic diagram of the power line structure of a DC power sequential output distribution box of an electric servo mechanism of the present invention;

[0023] Figure 6 It is a structural schematic diagram of a resistor plate of a DC power sequential output distribution box of an electric servo mechanism of the present invention;

[0024] Figure 7 It is a circuit diagram of a DC power supply sequence output distribution box of an electric servo mechanism of the present invention;

[0025] In the figure: 1. bracket; 2. box; 3. vibration damping pad; 4. resistor plate assembly; 5. pillar; 6. one-way power distribution interface; 7. two-way power distribution interface; 8. control output interface; 9. servo power distribution interface; 10. power cord one; 11. panel; 12. terminal one; 13. terminal two; 14. power cord; 15. bidirectional welding piece; 16. rivet; 17. resistor; 18. diode; 19. resistor plate. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0027] See also Figures 1 to 7 The present invention provides a technical solution: a DC power supply sequential output distribution box for an electric servo mechanism, comprising a distribution box body, the distribution box body comprising an input circuit, a control module, an output circuit and a box body 2, a bracket 1 is fixed to the top of the inner part of the box body 2, a pillar 5 is installed inside the box body 2, a resistor plate assembly 4 is installed on the top of the pillar 5, a shock-absorbing pad 3 is fixed to the bottom of the box body 2, a one-way distribution interface 6 and a two-way distribution interface 7 are installed on one side of the box body 2, a control output interface 8 and a steering gear distribution interface 9 are installed on the other side of the box body 2, a panel 11 is installed on the top of the box body 2, a terminal 12 and a terminal 2 13 are installed on the panel 11, and a power line 10 is installed on the panel 11.

[0028] As a preferred embodiment of the present invention, the power lines 10 are connected via power lines 2 14 , and the resistor plate assembly 4 includes a resistor plate 19 , on which a bidirectional welding piece 15 is mounted.

[0029] As a preferred embodiment of the present invention, the bidirectional welding pieces 15 are fixed on the resistor plate 19 by rivets 16 , resistors 17 are installed between the bidirectional welding pieces 15 , and a diode 18 is installed on the resistor plate 19 .

[0030] As a preferred embodiment of the present invention, the input circuit is used for inputting two DC power supply electrical signals, the control module is used for controlling the two DC power supply electrical signals to be powered on and off in a preset order, the control module is used for controlling whether the positive and negative poles of the input power supply are correctly connected, and there is no output when incorrectly connected, and the output circuit is used for outputting the two power supply electrical signals to the actuator and controller of the electric servo mechanism.

[0031] As a preferred embodiment of the present invention, the input circuit is divided into one input and two inputs, the one input is connected to power supply one, usually a low voltage and low current control power supply, and the two inputs are connected to power supply two, usually a high voltage and high current power supply.

[0032] As a preferred embodiment of the present invention, the control module includes a first voltage and a second voltage, the first voltage is connected in parallel, and one group of two four-way switches are connected in parallel, and the second voltage is connected in series, and two groups of two four-way switches are connected in series.

[0033] As a preferred embodiment of the present invention, the control module includes a first circuit. After the first circuit is turned on, if the positive and negative poles are correct, the light-emitting diode at the output end will light up and the voltage at the side output end will be output normally. If the positive and negative poles are connected incorrectly, the light-emitting diode at the output end will not light up, and the diode at the output end will be forward-conducted, so that the input power supply is in a short-circuit protection state, and there is no voltage output at the output end.

[0034] As a preferred embodiment of the present invention, the output circuit includes one output and two outputs, wherein the one output is connected to the electric servo mechanism controller to provide it with control power of lower voltage and smaller current, and the two outputs are connected to the electric servo mechanism actuator to provide power power of higher voltage and larger current.

[0035] As a preferred implementation manner of the present invention, after the input current and the output circuit are confirmed to be correctly connected, they are controlled by switch 1 and switch 2 of the control module.

[0036] As a preferred embodiment of the present invention, when power is turned on, no matter whether switch one or switch two is turned on first, one circuit is powered on first and then the second circuit is powered on; when power is turned off, no matter whether switch one or switch two is turned off first, the two circuits are powered off first and then the one circuit is powered off.

[0037] When using, Figure 2 The following are 1-way and 2-way power distribution interfaces, which are used to connect power supplies. Generally speaking, 1-way connects to low-voltage, low-current power supplies, and 2-way connects to high-voltage, high-current power supplies. A special plug needs to be made for connecting the power supply to the distribution box.

[0038] like Figure 3 The figures show a control output interface 8 and a steering gear power distribution interface 9, respectively. The control output interface 8 supplies power to the controller, and the steering gear power distribution interface 9 supplies power to the actuator.

[0039] Optional, such as Figure 4 As shown, the terminal blocks can also be used as 1-way or 2-way power input and output.

[0040] like Figure 4 The two switches shown are used to connect and disconnect the two outputs of the distribution box.

[0041] Before using the power distribution box, first confirm that both switches are in the off position, then connect the power supply and servo mechanism to the power distribution box in an appropriate way, and confirm that the connection is correct. When distributing power, first turn on any one of the two switches, then the control output interface 8 outputs, and the controller distributes power; then turn on the other switch, then the servo distribution interface 9 outputs, and the actuator distributes power. When the test is completed and the servo mechanism needs to be powered off, first turn off any one switch, then the servo distribution interface 9 stops outputting, and the actuator is powered off; then turn off the other switch, then the control output interface 8 stops outputting, and the actuator distributes power.

[0042] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A DC power supply sequence output distribution box for an electric servo mechanism, comprising a distribution box body, characterized in that: The power distribution box body comprises an input circuit, a control module, an output circuit and a box (2); a bracket (1) is fixed to the top of the box (2); a support (5) is installed inside the box (2); a resistor plate assembly (4) is installed on the top of the support (5); a shock-absorbing pad (3) is fixed to the bottom of the box (2); a one-way power distribution interface (6) and a two-way power distribution interface (7) are installed on one side of the box (2); a control output interface (8) and a steering gear power distribution interface (9) are installed on the other side of the box (2); a panel (11) is installed on the top of the box (2); a first terminal (12) and a second terminal (13) are installed on the panel (11); a power line (10) is installed on the panel (11); the control module comprises a first voltage and a second voltage; the first voltage is connected in parallel, and one group of two four-way switches are connected in parallel; the second voltage is connected in series, and two groups of two four-way switches are connected in series.

2. The DC power sequential output distribution box for an electric servo mechanism according to claim 1, characterized in that: The power lines one (10) are connected via power line two (14), the resistor plate assembly (4) comprises a resistor plate (19), and a bidirectional welding piece (15) is mounted on the resistor plate (19).

3. The DC power sequential output distribution box for an electric servo mechanism according to claim 2, characterized in that: The bidirectional welding pieces (15) are fixed to the resistor plate (19) via rivets (16); resistors (17) are installed between the bidirectional welding pieces (15); and a diode (18) is installed on the resistor plate (19).

4. The DC power sequential output distribution box for an electric servo mechanism according to claim 1, characterized in that: The input circuit is used for inputting two DC power supply electrical signals, the control module is used for controlling the two DC power supply electrical signals to be powered on and off in a preset order, the control module is used for controlling whether the positive and negative poles of the input power supply are correctly connected, and there is no output when the connection is incorrect, and the output circuit is used for outputting the two power supply electrical signals to the actuator and controller of the electric servo mechanism.

5. The DC power sequential output distribution box for an electric servo mechanism according to claim 1, characterized in that: The input circuit is divided into one input and two inputs. The one input is connected to power supply one, which is a low voltage and small current control power supply. The two inputs are connected to power supply two, which is a high voltage and large current power supply.

6. The DC power sequential output distribution box for an electric servo mechanism according to claim 1, characterized in that: The control module includes a first circuit. After the first circuit is turned on, if the positive and negative poles are correct, the light-emitting diode at the output end will light up and the voltage at the side output end will be output normally. If the positive and negative poles are connected incorrectly, the light-emitting diode at the output end will not light up, and the diode at the output end will be forward-conducted, so that the input power supply is in a short-circuit protection state, and there is no voltage output at the output end.

7. The DC power sequential output distribution box for an electric servo mechanism according to claim 1, characterized in that: The output circuit includes one output and two outputs. The one output is connected to the electric servo mechanism controller to provide it with low-voltage and low-current control power, and the two outputs are connected to the electric servo mechanism actuator to provide high-voltage and high-current power power.

8. The DC power sequential output distribution box for an electric servo mechanism according to claim 1, characterized in that: After the input circuit and the output circuit are confirmed to be connected correctly, they are controlled by switch 1 and switch 2 of the control module.

9. The DC power sequential output distribution box for an electric servo mechanism according to claim 7, characterized in that: When the power is on, no matter whether switch one or switch two is turned on first, one circuit is powered on first and then two circuits; when the power is off, no matter whether switch one or switch two is turned off first, two circuits are powered off first and then one circuit.

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