CN114498376A - A kind of electric servo mechanism DC power sequential output distribution box - Google Patents

Abstract

The invention provides a power distribution box with an electric servo mechanism for sequentially outputting a direct-current power supply, which comprises a power distribution box body, wherein the power distribution box body comprises an input circuit, a control module, an output circuit and a box body, a support is fixed at the top inside the box body, a support column is installed inside the box body, a resistance plate assembly is installed at the top of the support column, a shock pad is fixed at the bottom of the box body, one path of power distribution interface and two paths of power distribution interfaces are installed at one side of the box body, a control output interface and a steering engine power distribution interface are installed at the other side of the box body, a panel is installed at the top of the box body, a first binding post and a second binding post are installed on the panel, and a power supply wire is installed on the panel. When the direct-current power supply sequential output distribution box of the electric servo mechanism is used, voltage errors during power-on are avoided, and different sockets are used for input and output of each path to avoid the problem of voltage input cross errors.

Description

A kind of electric servo mechanism DC power sequence output distribution box

technical field

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 technique

The electric servo mechanism is composed of a controller and an actuator. The controller provides control instructions for the actuator according to the test requirements and closed-loop feedback results. The actuator acts according to the control instructions of the controller and feeds back the working conditions to the controller. During the test, two power sources need to be used to distribute power to the servo mechanism. Among them, the low-voltage, low-current power supply powers the controller, and the high-voltage, high-current power supply powers the actuator.

Since the controller needs to issue commands according to the closed-loop feedback results, special attention should be paid to power distribution and power failure. First, power distribution to the controller, and then power distribution to the actuator. Power off the controller again. If the power distribution or power-off sequence is wrong or the positive and negative poles of the input power supply are connected incorrectly, it will cause the electric servo mechanism to open-loop or be damaged, and the actuator will run out of control without control instructions, resulting in the transmission part exceeding the stroke, stuck or damaged. , the electronic device is burned, causing great economic losses. Therefore, the power distribution equipment is designed to ensure that there will be no power distribution errors caused by wrong switching sequences, and to reduce product damage caused by work errors.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the purpose of the present invention is to provide an electric servo mechanism DC power sequential output distribution box to solve the problems raised in the above background technology. Use separate sockets for input and output to avoid voltage input crossover errors.

In order to achieve the above purpose, the present invention is achieved through the following technical solutions: an electric servo mechanism DC power sequential output distribution box, including a distribution box body, the distribution box body includes an input circuit, a control module, and an output circuit and a box body, a bracket is fixed on the inner top of the box body, a support column is installed inside the box body, a resistance plate assembly is installed on the top of the column body, a shock pad is fixed at the bottom of the box body, and the One power distribution interface and two power distribution ports are installed on one side of the box body, a control output interface and a steering gear power distribution interface are installed on the other side of the box body, a panel is installed on the top of the box body, and the The first and second terminals are installed on the panel, and the first power cord is installed on the panel.

As a preferred embodiment of the present invention, the power lines are connected by two-phase power lines, and the resistance board assembly includes a resistance board, and the resistance board is mounted with a bidirectional solder tab.

As a preferred embodiment of the present invention, the bidirectional solder tabs are fixed on a resistance plate by rivets, a resistor is installed between the bidirectional solder tabs, and a diode is installed on the resistance plate.

As a preferred embodiment of the present invention, the input circuit is used for inputting two-way DC power electrical signals, and the control module is used to control the two-way DC power supply electrical signals to be matched and powered off in a preset order. The control module is used to control whether the positive and negative poles of the input power supply are correctly connected, and there is no output when wrongly connected.

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 input is connected to power supply two , usually high voltage and high current power supplies.

As a preferred embodiment of the present invention, the control module includes a first circuit voltage and a second circuit voltage, the first circuit voltage adopts a parallel connection, and a group of two four-circuit switches are connected in parallel, and the first circuit voltage is connected in parallel. The two-way voltage is connected in series, and the two groups of two four-way switches are connected in series.

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 electrodes are correct, the LED at the output end lights up, and the voltage at the side output end is output normally. If the positive and negative poles are wrongly connected, the diode of the light-emitting output end does not light up, and the diode of the output end conducts forwardly, so that the input power supply is in a short-circuit protection state, and there is no voltage output at the output end.

As a preferred embodiment of the present invention, the output circuit includes one output and two outputs, and the one output is connected to the electric servo mechanism controller to provide it with control power of lower voltage and smaller current, so The above-mentioned two-way output is connected to the actuator of the electric servo mechanism to provide power with higher voltage and larger current for a period of time.

As a preferred embodiment of the present invention, after it is confirmed that the input current and the output circuit are correctly connected, they are controlled by the first switch and the second switch of the control module.

As a preferred embodiment of the present invention, regardless of whether switch 1 or switch 2 is turned on first, one channel is energized first, and the second channel is then energized; when power is off, whether switch 1 or switch 2 is turned off first, both channels are turned off first. Power off, all the way to power off.

The beneficial effects of the present invention: an electric servo mechanism direct current power supply sequence output distribution box of the present invention includes a bracket; a box body; a vibration damping pad; a resistance plate assembly; Output interface; steering gear power distribution interface; power cord one; panel; terminal one; terminal two; power cord; two-way solder lug; rivet; resistor; diode; resistor plate.

1. The electric servo mechanism's DC power supply sequence output distribution box avoids voltage errors during power-on, and uses different sockets for each input and output to avoid voltage input crossover errors.

2. The electric servo mechanism DC power supply sequence output distribution box is realized by using two four-way switches, two of which are positive and negative for a group of power supplies. The second circuit voltage adopts the series connection mode, and the two groups of two four-circuit switches are connected in series, so that any switch of the two switches is opened during the process, and the first circuit is energized, and the second circuit is distributed after the other switch is opened. Turn off the second circuit of any switch and power off the first circuit after breaking the second switch.

Description of drawings

Fig. 1 is the structural schematic diagram of the front view of a kind of electric servo mechanism direct current power supply sequence output distribution box of the present invention;

Fig. 2 is a left side view of the structure diagram of an electric servo mechanism DC power sequential output distribution box according to the present invention;

Fig. 3 is a right side structural schematic diagram of an electric servo mechanism DC power sequential output distribution box according to the present invention;

Fig. 4 is a top-view structural schematic diagram of an electric servo mechanism DC power sequential output distribution box according to the present invention;

Fig. 5 is a schematic diagram of the structure of the power cord of an electric servo mechanism DC power sequential output distribution box according to the present invention;

FIG. 6 is a schematic structural diagram of a resistance board member of an electric servo mechanism DC power supply sequence output distribution box according to the present invention;

7 is a schematic circuit diagram of an electric servo mechanism DC power supply sequence output distribution box according to the present invention;

In the figure: 1. Bracket; 2. Box body; 3. Vibration damping pad; 4. Resistor board assembly; 5. Pillar; 6. One power distribution interface; 7. Two-way power distribution interface; , steering gear power distribution interface; 10, power cord one; 11, panel; 12, terminal one; 13, terminal two; 14, power cord; 15, two-way solder lug; 16, rivet; 17, resistance; 18, Diode; 19. Resistor plate.

Detailed ways

In order to make the technical means, creative features, achievement goals and effects realized by the present invention easy to understand, the present invention will be further described below with reference to the specific embodiments.

Referring to FIGS. 1 to 7, the present invention provides a technical solution: an electric servo mechanism DC power sequential output power distribution box, including a power distribution box body, and the power distribution box body includes an input circuit, a control module, and an output circuit and the box body 2, the bracket 1 is fixed on the inner top of the box body 2, the support column 5 is installed inside the box body 2, the resistance plate assembly 4 is installed on the top of the column body 5, and the bottom of the box body 2 is installed A shock pad 3 is fixed, one power distribution interface 6 and two power distribution ports 7 are installed on one side of the box body 2, and a control output interface 8 and a steering gear power distribution are installed on the other side of the box body 2 For the interface 9 , a panel 11 is installed on the top of the box body 2 , a terminal 1 12 and a second terminal 13 are installed on the panel 11 , and a power cord 1 10 is installed on the panel 11 .

As a preferred embodiment of the present invention, the first power lines 10 are connected through the second power lines 14, the resistance board assembly 4 includes a resistance board 19, and the resistance board 19 is mounted with a bidirectional solder tab 15 .

As a preferred embodiment of the present invention, the bidirectional solder tabs 15 are fixed on the resistance plate 19 by rivets 16 , a resistor 17 is installed between the bidirectional solder tabs 15 , and a diode 18 is installed on the resistance plate 19 .

As a preferred embodiment of the present invention, the input circuit is used for inputting two-way DC power electrical signals, and the control module is used to control the two-way DC power supply electrical signals to be matched and powered off in a preset order. The control module is used to control whether the positive and negative poles of the input power supply are correctly connected, and there is no output when wrongly connected.

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 input is connected to power supply two , usually high voltage and high current power supplies.

As a preferred embodiment of the present invention, the control module includes a first circuit voltage and a second circuit voltage, the first circuit voltage adopts a parallel connection, and a group of two four-circuit switches are connected in parallel, and the first circuit voltage is connected in parallel. The two-way voltage is connected in series, and the two groups of two four-way switches are connected in series.

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 electrodes are correct, the LED at the output end lights up, and the voltage at the side output end is output normally. If the positive and negative poles are wrongly connected, the diode of the light-emitting output end does not light up, and the diode of the output end conducts forwardly, so that the input power supply is in a short-circuit protection state, and there is no voltage output at the output end.

As a preferred embodiment of the present invention, the output circuit includes one output and two outputs, and the one output is connected to the electric servo mechanism controller to provide it with control power of lower voltage and smaller current, so The above-mentioned two-way output is connected to the actuator of the electric servo mechanism to provide power with higher voltage and larger current for a period of time.

As a preferred embodiment of the present invention, after it is confirmed that the input current and the output circuit are correctly connected, they are controlled by the first switch and the second switch of the control module.

As a preferred embodiment of the present invention, regardless of whether switch 1 or switch 2 is turned on first, one channel is energized first, and the second channel is then energized; when power is off, whether switch 1 or switch 2 is turned off first, both channels are turned off first. Power off, all the way to power off.

When in use, as shown in Figure 2, there are 1 channel and 2 channels of power distribution interface, which are used to connect the power supply. Generally speaking, the 1 channel is connected to the low-voltage and low-current power supply, and the 2-channel is connected to the high-voltage and high-current power supply. A special plug needs to be made for the connection between the power supply and the power distribution box.

As shown in Figure 3, the control output interface 8 and the steering gear power distribution interface 9 are respectively, the control output interface 8 supplies power to the controller, and the steering gear power distribution interface 9 supplies power to the actuator.

Optionally, as shown in FIG. 4 , the binding posts can also be used as the input and output of the 1-way and 2-way power supplies.

As shown in Figure 4, the two switches are used for the distribution and power-off of the two outputs of the power distribution box.

Before using the power distribution box, make sure that both switches are in the off position, and then connect the power supply and servo mechanism to the power distribution box in a suitable way to confirm that the connection is correct. When power distribution, first turn on any one of the two switches, then control the output of the output interface 8, and the controller distributes power; then open the other switch, at this time, the steering gear power distribution interface 9 outputs, and the actuator distributes power. When it is necessary to power off the servo after the test, turn off any switch first, then the power distribution interface 9 of the steering gear stops outputting, and the actuator is powered off; then turn off the other switch, at this time, the control output interface 8 stops output, and the actuator power distribution.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, and it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but without departing from the spirit or essential aspects of the present invention. In the case of the characteristic features, the present invention can be implemented in other specific forms. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. An electric servo mechanism DC power supply sequence output distribution box, comprising a distribution box body, characterized in that: the distribution box body comprises an input circuit, a control module, an output circuit and a box (2), the box A bracket (1) is fixed on the inner top of the body (2), a support column (5) is installed inside the box body (2), and a resistance plate assembly (4) is installed on the top of the support column (5). A shock-absorbing pad (3) is fixed at the bottom of the body (2), one power distribution interface (6) and a two-way power distribution interface (7) are installed on one side of the box body (2). ) is installed with a control output interface (8) and a steering gear power distribution interface (9), a panel (11) is installed on the top of the box (2), and a terminal is installed on the panel (11). One (12) and two connecting posts (13), a power cord one (10) is installed on the panel (11). 2. An electric servo mechanism DC power sequential output distribution box according to claim 1, characterized in that: the first (10) of the power lines are connected through the second (14) of the power lines, and the resistance plate The assembly (4) includes a resistance plate (19) on which a bidirectional solder tab (15) is mounted. 3. An electric servo mechanism DC power sequential output power distribution box according to claim 2, characterized in that: the bidirectional welding piece (15) is fixed on the resistance plate (19) by rivets (16), and the A resistor (17) is installed between the bidirectional solder tabs (15), and a diode (18) is installed on the resistor plate (19). 4. An electric servo mechanism DC power sequential output distribution box according to claim 1, characterized in that: the input circuit is used for the input of two-way DC power supply electrical signals, and the control module is used for controlling the two-way power supply. The DC power supply electrical signals are configured and powered off according to the preset order, the control module is used to control whether the positive and negative poles of the input power supply are connected correctly, and there is no output when wrongly connected, and the output circuit is used to output the two-way power supply electrical signals to the Actuators and controllers for electric servos. 5. A kind of electric servo mechanism DC power sequential output distribution box according to claim 1, it is characterized in that: described input circuit is divided into one input and two inputs, and described one input is connected to power supply one, which is usually Low-voltage and low-current control power supply, the two-way input is connected to the second power supply, usually a high-voltage and high-current power supply. 6 . The electric servo mechanism DC power sequential output distribution box according to claim 1 , wherein the control module comprises a first voltage and a second voltage, and the first voltage adopts a parallel connection. 7 . mode, and one group of two four-way switches is connected in parallel, the second voltage is connected in series, and two groups of two four-way switches are connected in series. 7. An electric servo mechanism DC power sequential output distribution box according to claim 1, characterized in that: the control module comprises a first circuit, after the first circuit is connected, if the positive and negative electrodes are connected If it is correct, the light-emitting diode at the output end is on, and the voltage at the output end of the side is output normally. If the positive and negative poles are connected incorrectly, the diode at the light-emitting output end is off, and the diode at the output end is forward-conducting, so that the input power supply is in a short-circuit protection state, and there is no voltage at the output end. output. 8. An electric servo mechanism DC power sequential output distribution box according to claim 1, characterized in that: the output circuit includes one output and two outputs, and the one output is connected to the electric servo mechanism controller , providing control power with lower voltage and smaller current for it, and the two-way output is connected to the actuator of the electric servo mechanism, so as to provide power power with higher voltage and larger current for a period of time. 9 . The sequential output distribution box of the DC power supply of an electric servo mechanism according to claim 1 , wherein the input current and the output circuit are confirmed to be correctly connected, and then controlled by the switch 1 and the switch 2 of the control module. 10 . 10. A kind of electric servo-mechanism direct current power supply sequence output distribution box according to claim 8, it is characterized in that: when the power is turned on, no matter whether switch 1 or switch 2 is turned on first, one channel is energized first, and the second channel is energized again; No matter if switch 1 or switch 2 is turned off first, the second circuit will be powered off first, and then the first circuit will be powered off.

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