Power supply output execution device

Abstract

The utility model relates to a power output execution device, include: the positive pole of power supply is connected with the one end of slow start contactor main contact, the other end of slow start contactor main contact is connected with the input of slow start board, the negative pole of power supply is connected with the output of slow start board through main contactor, constitutes the power supply circuit, slow start resistance is set up in the slow start board for reducing the current of power supply when starting, when the current of power supply output meets the preset condition, through main contactor connects power supply with load, slow start contactor, main contactor and slow start board all set up in electromagnetic radiation shielding shell, and electromagnetic radiation shielding shell is used for shielding the electromagnetic radiation that contactor produces when working, the utility model discloses a power supply, slow start contactor, main contactor and slow start board are integrally encapsulated in electromagnetic radiation shielding shell, and the electromagnetic radiation that contactor and relevant elements produce when working is reduced significantly, prevents the influence of electromagnetic interference to surrounding control circuit and software operation.

Description

Technical Field

[0001] This utility model relates to the field of power supply technology, and in particular to a power output actuator. Background Technology

[0002] With the widespread application of modern electronic equipment and automation systems, power output actuators play a crucial role in industrial control, intelligent manufacturing, and power systems. Typically, these devices control and switch power supplies using switching elements such as contactors. However, the operation of contactor-powered systems often involves strong electromagnetic radiation.

[0003] The electromagnetic radiation mainly originates from the transient voltage spikes and current changes generated when the contactor coil is switched on and off, which in turn creates high-intensity electromagnetic interference (EMI) around the equipment. When the intensity of electromagnetic radiation exceeds a certain threshold, it will seriously interfere with the normal operation of the power supply control circuit, causing abnormal phenomena such as "runaway" or "crash" in the software part of the control system, directly affecting the stability and reliability of the power supply output actuator.

[0004] Therefore, how to effectively suppress electromagnetic interference generated during contactor operation and ensure the safe and stable operation of power output actuators has become an urgent technical problem to be solved. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model embodiment is to provide a power output actuator.

[0006] A power output actuator, comprising:

[0007] The power supply has its positive terminal connected to one end of the main contact of the slow-start contactor, and the other end of the main contact of the slow-start contactor connected to the input terminal of the slow-start plate. The negative terminal of the power supply is connected to the output terminal of the slow-start plate through the main contactor, forming a power supply circuit. The slow-start plate is equipped with a slow-start resistor to reduce the current of the power supply during startup. When the current output by the power supply meets the preset conditions, the power supply is connected to the load through the main contactor.

[0008] The power supply, soft-start contactor, main contactor, and soft-start plate are all housed within an electromagnetic radiation shielding shell, which is used to shield the electromagnetic radiation generated by the contactor during operation.

[0009] Preferably, the main contactor includes:

[0010] First main contactor A, one end of the main contact of the first main contactor A is connected to the positive terminal of the power supply, and the other end of the main contact of the first main contactor A is connected to the positive terminal of the load;

[0011] The second main contactor B has one end of its main contact connected to the negative terminal of the power supply, and the other end of its main contact connected to the negative terminal of the load.

[0012] Preferred options also include:

[0013] A current sensor is provided, with one end connected to the input terminal of the soft-start board and the positive terminal of the power supply, and the other end connected to the positive terminal of the load, for detecting the load current.

[0014] Preferably, the current sensor is a Hall current sensor.

[0015] Preferably, copper busbars are used instead of wires in the circuit for heat dissipation.

[0016] Preferably, the electromagnetic radiation shielding shell is grounded.

[0017] According to the specific embodiments provided by this utility model, the following technical effects are disclosed:

[0018] This utility model relates to a power output actuator. Compared with the prior art, this utility model significantly reduces the electromagnetic radiation generated by the contactor and related components during operation by encapsulating the power supply, the soft-start contactor, the main contactor and the soft-start plate in an electromagnetic radiation shielding shell, thereby preventing electromagnetic interference from affecting the operation of the surrounding control circuits and software.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A circuit diagram of a power output actuator provided by this utility model;

[0022] Figure 2 The outline of the power output device provided by this utility model is as follows: side view, perspective view, top view, and front view, in clockwise order.

[0023] Figure 3 This is a diagram showing the installation of internal components for this utility model.

[0024] Symbol explanation:

[0025] 1. Left side panel of electromagnetic radiation shielding enclosure; 2. Hall current sensor; 3. Signal interface; 4. Busbar; 5. Cover plate of electromagnetic radiation shielding enclosure; 6. Copper stud; 7. Soft-start plate; 8. Right side panel of electromagnetic radiation shielding enclosure; 9. Soft-start contactor; 10. Main contactor; 11. Electromagnetic radiation shielding enclosure housing. Detailed Implementation

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Please see Figure 1 A power output actuator, comprising:

[0030] The power supply has its positive terminal connected to one end of the main contact of the slow-start contactor, and the other end of the main contact of the slow-start contactor connected to the input terminal of the slow-start plate. The negative terminal of the power supply is connected to the output terminal of the slow-start plate through the main contactor, forming a power supply circuit. The slow-start plate is equipped with a slow-start resistor to reduce the current of the power supply during startup. When the current output by the power supply meets the preset conditions, the power supply is connected to the load through the main contactor.

[0031] The power supply, the slow-start contactor, the main contactor, and the slow-start plate are all housed within an electromagnetic radiation shielding shell. The electromagnetic radiation shielding shell is used to shield the electromagnetic radiation generated by the contactor during operation, and the electromagnetic radiation shielding shell is grounded.

[0032] Furthermore, the main contactor includes: a first main contactor A and a second main contactor B.

[0033] One end of the main contact of the first main contactor A is connected to the positive terminal of the power supply, and the other end of the main contact of the first main contactor A is connected to the positive terminal of the load; one end of the main contact of the second main contactor B is connected to the negative terminal of the power supply, and the other end of the main contact of the second main contactor B is connected to the negative terminal of the load.

[0034] Furthermore, it also includes:

[0035] A current sensor is included, with one end connected to both the input terminal of the soft-start board and the positive terminal of the power supply, and the other end connected to the positive terminal of the load, for detecting the load current. The current sensor is a Hall effect current sensor.

[0036] like Figure 2 As shown. Figure 2 The principle is "+I". Figure 1 In the diagram, "power output positive" and "+O" represent the principle. Figure 1 The positive terminal of the load, "-I" is the principle. Figure 1 In the text, "power output negative" and "-O" indicate the principle. Figure 1 The negative terminal of the load in the "SIO" principle Figure 1 The signal interface in the system.

[0037] Internal component installation, such as Figure 3 As shown in the diagram, the power device is installed within a sealed conductive housing, shielding the electromagnetic radiation emitted during contactor switching. The housing is reliably connected to a safe ground. The power contactor is installed close to the ground to minimize heat generation. A copper busbar replaces the wires for heat dissipation. The Hall effect sensor for current detection is installed in the current output copper busbar, away from the heat-generating device, improving current detection accuracy. An insulated screw cap is designed at the current output connection terminal to prevent electric shock during operation, thus addressing personnel safety.

[0038] According to the specific embodiments provided by this utility model, the following technical effects are disclosed:

[0039] This invention significantly reduces the electromagnetic radiation generated by the contactor and related components during operation by encapsulating the power supply, soft-start contactor, main contactor and soft-start plate in an electromagnetic radiation shielding shell, thus preventing electromagnetic interference from affecting the operation of surrounding control circuits and software.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A power output actuator, characterized in that, include: The power supply has its positive terminal connected to one end of the main contact of the slow-start contactor, and the other end of the main contact of the slow-start contactor connected to the input terminal of the slow-start plate. The negative terminal of the power supply is connected to the output terminal of the slow-start plate through the main contactor, forming a power supply circuit. The slow-start plate is equipped with a slow-start resistor to reduce the current of the power supply during startup. When the current output by the power supply meets the preset conditions, the power supply is connected to the load through the main contactor. The power supply, soft-start contactor, main contactor, and soft-start plate are all housed within an electromagnetic radiation shielding shell, which is used to shield the electromagnetic radiation generated by the contactor during operation.

2. The power output actuator according to claim 1, characterized in that, The main contactor includes: First main contactor A, one end of the main contact of the first main contactor A is connected to the positive terminal of the power supply, and the other end of the main contact of the first main contactor A is connected to the positive terminal of the load; The second main contactor B has one end of its main contact connected to the negative terminal of the power supply, and the other end of its main contact connected to the negative terminal of the load.

3. The power output actuator according to claim 2, characterized in that, Also includes: A current sensor is provided, with one end connected to the input terminal of the soft-start board and the positive terminal of the power supply, and the other end connected to the positive terminal of the load, for detecting the load current.

4. The power output actuator according to claim 3, characterized in that, The current sensor is a Hall current sensor.

5. A power output actuator according to claim 4, characterized in that, Copper busbars are used instead of wires in the circuit for heat dissipation.

6. The power output actuator according to claim 1, characterized in that, The electromagnetic radiation shielding shell is grounded.

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