DC high-power switching power supply

Abstract

The utility model discloses a DC high-power switching power supply which comprises a machine body, a circuit board is arranged at the bottom of an inner cavity of the machine body, a wire is arranged on the outer wall of the machine body in a penetrating mode, a null line of the wire is connected with a cathode wiring point of the circuit board, and a wiring block is welded to an anode wiring point of the circuit board. A sensor, a controller and an electric push rod are installed in an inner cavity of the machine body, the sensor is electrically connected with the controller, the controller is electrically connected with the electric push rod, the movable end of the electric push rod is connected with an ejector rod, the ejector rod is connected with a live wire of the wire, and one end of the ejector rod can make contact with the wiring block. The utility model relates to the technical field of switching power supplies, a DC high-power switching power supply realizes the circuit cutting between a lead and a circuit board through the detection of a sensor, the control signal transmission of a controller and the driving of an electric push rod, so that the DC high-power switching power supply realizes the circuit cutting under the condition that the temperature of a cooling fan cannot be controlled, and the service life of the DC high-power switching power supply is prolonged. And the DC high-power switching power supply is prevented from dangers during use.

Description

Technical Field

[0001] The utility model relates to the technical field of switching power supplies, in particular to a DC high-power switching power supply. Background Art

[0002] A switching power supply, also known as a switch-mode power supply, switching power supply, or switching converter, is a high-frequency power conversion device and a type of power supply. Its function is to convert a standard voltage into the voltage or current required by the user through different forms of architecture, and to maintain a stable output voltage by controlling the on- and off-time ratio of the switch tube. Among them, the DC high-power switching power supply has the characteristics of high power conversion efficiency and is widely used in high-power scenarios. In actual use, due to the high power of the DC high-power switching power supply, a higher temperature will be generated during its use. Although the switching power supply generally has an air-cooling heat dissipation device inside, when the temperature of the switching power supply is high and the air-cooling device cannot be controlled, if the switching power supply is not powered off in time, it is easy to be dangerous. To this end, we provide a DC high-power switching power supply to solve the above problems. Utility Model Content

[0003] In order to solve the above problems, that is, to solve the problems raised by the above background technology, the utility model proposes a DC high-power switching power supply, including a body, a circuit board is arranged at the bottom of the inner cavity of the body, a wire is penetrated through the outer wall of the body, the neutral wire of the wire is connected to the negative wiring point of the circuit board, and the positive wiring point of the circuit board is welded with a wiring block, a sensor, a controller and an electric push rod are installed in the inner cavity of the body, the sensor is electrically connected to the controller, the controller is electrically connected to the electric push rod, the movable end of the electric push rod is connected to a push rod, the push rod is connected to the live wire of the wire, and one end of the push rod can contact the wiring block.

[0004] Preferably, a groove block is provided on the inner wall of the body, and the groove block is fixedly connected to the live wire of the conductor, and a protrusion is slidably provided in the inner cavity of the groove block, and the protrusion can move in the inner cavity of the groove block along the movement direction of the electric push rod and the push rod, and one end of the groove block along the movement direction is fixedly connected to the push rod, and the movable end of the electric push rod can drive the push rod to move by pushing the groove block.

[0005] Preferably, the machine body and the slot block are fixedly connected by an insulating plate, and the movable end of the electric push rod is fixedly connected to the slot block via an insulating block.

[0006] Preferably, an elastic sheet is provided on one side of the insulating block close to the top rod, one end of the top rod close to the elastic sheet is spherical, and a groove adapted to the spherical end of the top rod is provided inside the elastic sheet.

[0007] Preferably, a heat dissipation net is provided at the opening of the outer wall of the body, a heat dissipation fan is provided at the inner cavity of the body, and a handle is installed at the top of the body.

[0008] The beneficial technical effect of the utility model is that the DC high-power switching power supply cuts off the circuit between the wire and the circuit board through the detection of the sensor, the control signal transmission of the controller and the driving of the electric push rod, so that the DC high-power switching power supply can cut off the circuit when the cooling fan cannot control the temperature, thereby avoiding danger when the DC high-power switching power supply is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A three-dimensional structural schematic diagram of the utility model is shown.

[0010] Figure 2 A side cross-sectional structural schematic diagram of the utility model is shown.

[0011] Figure 3 The three-dimensional structure schematic diagram of the groove block and the protrusion of the utility model is shown.

[0012] Figure numerals: 1, machine body; 2, circuit board; 3, wire; 4, junction block; 5, sensor; 6, controller; 7, electric push rod; 8, push rod; 9, slot block; 10, bump; 11, insulating block; 12, insulating plate; 13, elastic sheet; 14, heat dissipation net; 15, handle. DETAILED DESCRIPTION

[0013] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0014] The utility model proposes a DC high-power switching power supply, including a body 1, the body 1 is the shell of the DC high-power switching power supply, and the internal structure of the DC high-power switching power supply is the prior art, so it is not described in detail here. A circuit board 2 is arranged at the bottom of the inner cavity of the body 1, and a wire 3 is arranged through the outer wall of the body 1. The neutral line of the wire 3 is connected to the negative wiring point of the circuit board 2, and the neutral line of the wire 3 can directly contact the circuit board 2. The positive wiring point of the circuit board 2 is welded with a wiring block 4. The inner cavity of the body 1 is installed with a sensor 5, a controller 6 and an electric push rod 7. The sensor 5 can monitor the internal structure of the DC high-power switching power supply in real time. The working temperature of the sensor 5 is electrically connected to the controller 6. The sensor 5 can transmit the detected temperature data to the controller 6, and the controller 6 can set the temperature safety value. The controller 6 is electrically connected to the electric push rod 7. When the temperature measured by the sensor 5 exceeds the safety value on the controller 6, the controller 6 can transmit the signal to the electric push rod 7. The movable end of the electric push rod 7 is connected with a push rod 8, and the electric push rod 7 can drive the push rod 8 to move. The push rod 8 is connected to the live wire of the wire 3, and one end of the push rod 8 can contact the terminal block 4. Since the push rod 8 is connected to the live wire of the wire 3, the electric push rod 7 contracts, and the push rod 8 is separated from the terminal block 4 and the circuit is cut off.

[0015] Specifically, a groove block 9 is provided on the inner wall of the body 1, and the groove block 9 is fixedly connected to the live wire of the conductor 3, and a protrusion 10 is slidably provided in the inner cavity of the groove block 9, and the protrusion 10 can move in the inner cavity of the groove block 9 along the movement direction of the electric push rod 7 and the top rod 8. One end of the groove block 9 along the movement direction is fixedly connected to the top rod 8, and the movable end of the electric push rod 7 can drive the top rod 8 to move by pushing the groove block 9. The live wire of the conductor 3 is moved to the top rod 8 through the sliding cooperation between the groove block 9 and the protrusion 10, and the live wire of the conductor 3 can be fixed, thereby avoiding the breakage of the live wire due to long-term bending, thereby increasing the stability of conductivity.

[0016] Specifically, the body 1 and the slot block 9 are fixedly connected by an insulating plate 12, and the movable end of the electric push rod 7 is fixedly connected to the slot block 9 through an insulating block 11. The design purpose is to prevent the body 1 from being conductive, to prevent the electric push rod 7 from being conductive, and to make it safer for workers to use the DC high-power switching power supply.

[0017] Specifically, an elastic sheet 13 is provided on one side of the insulating block 11 close to the top rod 8. The elastic sheet 13 is preferably a brass conductive spring sheet. The end of the top rod 8 close to the elastic sheet 13 is set to a spherical shape, and a groove adapted to the spherical end of the top rod 8 is provided inside the elastic sheet 13. By providing the elastic sheet 13, the conductive contact between the top rod 8 and the terminal block 4 can be made more stable. At the same time, through the spherical design of one end of the top rod 8 and the groove provided inside the elastic sheet 13, the contact surface between the top rod 8 and the elastic sheet 13 can be made larger, making the conductivity more stable.

[0018] Specifically, a heat dissipation net 14 is provided at the opening of the outer wall of the body 1, and a heat dissipation fan is provided in the inner cavity of the body 1. The heat dissipation fan in the inner cavity of the body 1 and the heat dissipation net 14 on the outer wall can dissipate the heat of the DC high-power switching power supply to a certain extent. A handle 15 is installed on the top of the body 1. The design of the handle 15 can facilitate the user to move and transport the DC high-power switching power supply.

[0019] According to the personnel in this field, all the electrical parts and components in this case are universal standard parts or components known to the technical personnel in this field, and their structures and principles can be known to the technical personnel through technical manuals or through conventional experimental methods. The models are compatible with this solution and can operate normally. All the electrical parts in this case are connected to the power supply adapted to them through wires, and according to the actual situation, a suitable controller is selected to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection is completed in the working order of each electrical component. The detailed connection means are well-known technologies in this field and will not be explained in the electrical control.

[0020] Working principle: When using the DC high-power switching power supply, the user can connect the DC high-power switching power supply to a power supply, and connect the DC high-power switching power supply to an adapter device in the scene to work. During a long period of operation, the DC high-power switching power supply dissipates heat through the cooling fan inside the body 1, and then allows the gas to flow through the heat dissipation network 14 to achieve cooling of the internal components of the DC high-power switching power supply. When the internal temperature of the DC high-power switching power supply is too high, the sensor 5 can transmit the high-temperature signal data to the controller 6 under real-time monitoring. When the temperature exceeds the safety value, the controller 6 will send a signal to the electric push rod 7. At this time, the electric push rod 7 will shrink, thereby driving the push rod 8 to separate from the elastic sheet 13 on the terminal block 4, thereby achieving circuit disconnection of the DC high-power switching power supply, thereby avoiding the risk of damage to the DC high-power switching power supply due to high temperature during use, thereby further improving its safety.

[0021] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0022] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0024] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0025] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A DC high-power switching power supply, comprising a body (1), a circuit board (2) being arranged at the bottom of the inner cavity of the body (1), a wire (3) being arranged through the outer wall of the body (1), a neutral line of the wire (3) being connected to a negative electrode connection point of the circuit board (2), characterized in that: A terminal block (4) is welded to the positive terminal point of the circuit board (2); a sensor (5), a controller (6) and an electric push rod (7) are installed in the inner cavity of the body (1); the sensor (5) is electrically connected to the controller (6); the controller (6) is electrically connected to the electric push rod (7); a push rod (8) is connected to the movable end of the electric push rod (7); the push rod (8) is connected to the live wire of the wire (3); and one end of the push rod (8) can be in contact with the terminal block (4).

2. A DC high power switching power supply according to claim 1, characterized in that: The inner wall of the body (1) is provided with a slot block (9), the slot block (9) is fixedly connected to the live wire of the conductor (3), and the inner cavity of the slot block (9) is slidably provided with a protrusion (10), the protrusion (10) can move in the inner cavity of the slot block (9) along the movement direction of the electric push rod (7) and the push rod (8), one end of the slot block (9) along the movement direction is fixedly connected to the push rod (8), and the movable end of the electric push rod (7) can drive the push rod (8) to move by pushing the slot block (9).

3. A DC high power switching power supply according to claim 2, characterized in that: The machine body (1) and the slot block (9) are fixedly connected by an insulating plate (12), and the movable end of the electric push rod (7) is fixedly connected to the slot block (9) via an insulating block (11).

4. A DC high power switching power supply according to claim 3, characterized in that: An elastic sheet (13) is provided on one side of the insulating block (11) close to the top rod (8); one end of the top rod (8) close to the elastic sheet (13) is spherical; and a groove adapted to the spherical end of the top rod (8) is provided inside the elastic sheet (13).

5. A DC high power switching power supply according to claim 1, characterized in that: A heat dissipation net (14) is provided at the opening of the outer wall of the machine body (1), a heat dissipation fan is provided in the inner cavity of the machine body (1), and a handle (15) is installed on the top of the machine body (1).

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