Power supply control device

Abstract

The utility model provides a power supply control device which comprises fixing frames, a spiral coil is arranged between the fixing frames, the two ends of the spiral coil are in threaded connection with metal rods respectively, and the side walls of the fixing frames are attached to connectors. One end of the connector is fixedly connected with a fixing rod, a plurality of metal elastic pieces are installed at one end of the metal rod, one end of each metal elastic piece is fixedly connected with a hemispherical fixing block, the fixing blocks abut against the side wall of the connector, and the surfaces of the metal elastic pieces abut against the inner side wall of the fixing rod. The power supply control device provided by the utility model has the advantages of quick connector replacement and convenience for people to use.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply control, in particular to a power supply control device. Background Art

[0002] A power supply system is a system that consists of a power supply system and a power transmission and distribution system to generate electric energy and supply and transmit it to electrical equipment. It can be roughly divided into three types: TN, IT, and TT. Among them, the TN system is divided into three forms: TN-C, TN-S, and TN-C-S; the power supply system must follow the principles of reliable power supply, convenient operation, safe and flexible operation, and economic rationality.

[0003] In a power supply system, in order to achieve the effective transmission and control of electric energy, a reactor is installed in the circuit to limit current or overvoltage. The reactor adjusts the current by detecting changes in inductance or capacitance, and it plays a role in stabilizing the current and improving the utilization efficiency of electric energy in the power system. When outputting high-voltage electricity, in order to suppress high-order harmonics and reduce the generation of distortion of the network voltage waveform, a reactor is installed in the circuit. However, due to the extremely easy voltage fluctuation of high-voltage electricity, the voltage at the contact between the joint of the reactor and the wire is also unstable, and the joint of the reactor is easily burned and melted. The melted joint firmly adheres to the support of the reactor, and the joint is generally welded to the reactor, making it difficult to replace.

[0004] Therefore, it is necessary to provide a new power supply control device to solve the above technical problems. Content of the Utility Model

[0005] The technical problem solved by the utility model is to provide a power supply control device with a quickly replaceable joint, which is convenient for people to use.

[0006] To solve the above technical problem, the power supply control device provided by the utility model includes: a fixed frame, a spiral coil is arranged between the fixed frames, both ends of the spiral coil are respectively threadedly connected with metal rods, and the side wall of the fixed frame is attached to the joint; one end of the joint is fixedly connected with a fixed rod, one end of the metal rod is provided with a plurality of metal elastic pieces, one end of the metal elastic piece is fixedly connected with a hemispherical fixed block, the fixed block abuts against the side wall of the joint, and the surface of the metal elastic piece abuts against the inner side wall of the fixed rod.

[0007] Preferably, the cross-section of the side wall of the fixed frame is in a "U" shape, and the fixed frames are connected by a connecting plate.

[0008] Preferably, the side wall of the metal elastic piece is in an arc structure, and the maximum vertical gap between the metal elastic pieces is greater than the inner diameter of the fixed rod.

[0009] Preferably, a plurality of convex blocks are installed on the side wall of the metal elastic piece, and the convex blocks are slidably connected to the inner side wall of the fixed rod.

[0010] Preferably, the side wall of the fixing frame is in threaded connection with the screw rod, and the screw rod abuts against the side wall of the fixing rod.

[0011] Preferably, a fixing ring is fixedly connected to the side wall of the fixing rod, the side wall of the fixing ring abuts against the side wall of the screw rod, and the cross section of the side wall of the fixing ring is in a right trapezoidal structure.

[0012] Compared with the related art, the power supply control device provided by the present invention has the following beneficial effects:

[0013] The present invention provides a power supply control device. The power supply system is connected to the spiral coil through the joint, and the circuit enters the inside of the spiral coil through the joint. The self-induced electromotive force in the spiral coil always resists the change of the current in the coil. The direction of the self-induced electromotive force is to prevent the change of the current. When the current increases, the direction of the self-induced electromotive force is opposite to the direction of the current, increasing the short-circuit impedance, achieving the purpose of limiting the short-circuit current, and at the same time suppressing high-order harmonics and reducing the generation of distortion of the network voltage waveform; when the joint is burned out, the cross section of the side wall of the joint is in a "T" shape, one end of the joint abuts against the fixing frame, and the contact area between the joint and the fixing frame is small, preventing the joint from firmly adhering to the side wall of the fixing frame. By rotating the screw rod, the screw rod is separated from the fixing ring, sliding the joint, driving the fixing rod to move. A hemispherical bump is installed between the fixing rod and the metal elastic sheet, facilitating the sliding of the fixing rod on the side wall of the metal elastic sheet; placing the replaced joint on the side wall of the fixing frame, the joint drives the fixing rod to move, causing the fixing rod to squeeze the metal elastic sheet with an arc-shaped side wall. The metal elastic sheet is compressed inside the fixing rod, causing the fixing block to abut against the side wall of the joint, and at the same time making the metal elastic sheet tightly adhere to the inner side wall of the fixing rod, increasing the contact area between the fixing rod and the metal elastic sheet, and then using the screw rod to fix the fixing rod, so as to quickly replace the joint and facilitate people's use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of a preferred embodiment of the power supply control device provided by the present invention;

[0015] Figure 2 is Figure 1 a side view of the internal structure of the shown fixing frame;

[0016] Figure 3 is Figure 2 an enlarged schematic view of the structure at A shown;

[0017] Figure 4 is Figure 3Schematic diagram of the metal shrapnel structure shown.

[0018] Reference numerals in the figure: 1, fixing frame; 2, connecting plate; 3, spiral coil; 4, connector; 5, screw; 6, metal rod; 7, fixing rod; 8, fixing block; 9, metal shrapnel; 10, bump; 11, fixing ring. Specific implementation mode

[0019] The present invention will be further described below in conjunction with the accompanying drawings and the implementation mode.

[0020] Please refer to Figures 1 to 4 , Figure 1 which is a schematic diagram of the structure of a preferred embodiment of the power supply control device provided by the present invention; Figure 2 is Figure 1 a side view of the internal structure of the fixing frame shown; Figure 3 is Figure 2 an enlarged schematic diagram of the structure at A shown; Figure 4 is Figure 3 a schematic diagram of the metal shrapnel structure shown. The power supply control device includes: a fixing frame 1, a spiral coil 3 is arranged between the fixing frames 1, the power supply system is connected to the spiral coil 3 through the connector, the circuit enters the inside of the spiral coil 3 through the connector, the self-induced electromotive force in the spiral coil always resists the change of the current in the coil, the direction of the self-induced electromotive force is to attempt to prevent the change of the current. When the current increases, the direction of the self-induced electromotive force is opposite to the direction of the current, increasing the short-circuit impedance, achieving the purpose of limiting the short-circuit current, and at the same time suppressing high-order harmonics and reducing the generation of distortion of the network voltage waveform.

[0021] Both ends of the spiral coil 3 are threadedly connected to the metal rod 6 respectively, and the side wall of the fixing bracket 1 is attached to the joint 4; one end of the joint 4 is fixedly connected to the fixing rod 7, and a plurality of metal elastic pieces 9 are installed at one end of the metal rod 6. One end of the metal elastic piece 9 is fixedly connected to a hemispherical fixing block 8, the fixing block 8 abuts against the side wall of the joint 4, and the surface of the metal elastic piece 9 abuts against the inner side wall of the fixing rod 7. The side wall of the metal elastic piece 9 is of an arc-shaped structure, and a plurality of convex blocks 10 are installed on the side wall of the metal elastic piece 9, and the convex blocks 10 are slidably connected to the inner side wall of the fixing rod 7. The side wall of the fixing bracket 1 is threadedly connected to the screw rod 5, and the screw rod 5 abuts against the side wall of the fixing rod 7.The side wall of the fixed rod 7 is fixedly connected with a fixing ring 11. The side wall of the fixing ring 11 abuts against the side wall of the screw rod 5, and the cross-section of the side wall of the fixing ring 11 is in a right trapezoid structure. When the joint 4 is burned out, the cross-section of the side wall of the joint 4 is in a "T" shape. One end of the joint 4 abuts against the fixing bracket 1, and the other end of the joint 4 is installed with an electric wire to be connected to the power supply system. The easily burned part of the joint 4 is at a relatively far distance from the fixing bracket 1, and the contact area between the joint 4 and the fixing bracket 1 is small, so as to prevent the joint 4 from melting and firmly adhering to the side wall of the fixing bracket 1 during the burning process. Rotate the screw rod 5 to separate the screw rod 5 from the fixing ring 11, slide the joint 4 to drive the fixed rod 7 to move. A hemispherical bump 10 is installed between the fixed rod 7 and the metal elastic sheet 9 to reduce the friction force between the fixed rod 7 and the bump 10, facilitating the sliding of the fixed rod 7 on the side wall of the metal elastic sheet 9. After the joint 4 is separated from the metal elastic sheet 9, the metal elastic sheet 9 resets and expands outwards. Place the replaced joint 4 on the side wall of the fixing bracket 1. The joint 4 drives the fixed rod 7 to move. The fixed block 8 and the metal elastic sheet 9 enter the interior of the fixed rod 7, and the maximum vertical gap between the metal elastic sheets 9 is greater than the inner diameter of the fixed rod 7. As the fixed rod 7 moves, the fixed rod 7 squeezes the metal elastic sheet 9 with an arc-shaped side wall. The metal elastic sheet 9 is compressed inwards inside the fixed rod 7, and the length of the spindle-shaped metal elastic sheet 9 becomes longer, so that the fixed block 8 made of metal abuts against the side wall of the joint 4. When transmitting an electric circuit, the electric circuit flows between the joint 4, the fixed block 8, the fixed rod 7 and the metal elastic sheet 9 and enters or exits from the spiral coil 1. The electric circuit flows between the joint 4 and the spiral coil 1 through multiple paths, avoiding poor contact. And after the metal elastic sheet 9 is squeezed, the metal elastic sheet 9 tightly squeezes the fixed rod 7 outwards, increasing the connection stability between the fixed rod 7 and the metal elastic sheet 9. And rotate the screw rod 5 downwards to make the screw rod 5 squeeze the fixing ring 11 with a right trapezoid cross-section side wall. The screw rod 5 squeezes the fixing ring 11 with an inclined side wall, pushing the fixed rod 7 towards the interior of the fixing bracket 1. The screw rod 5 abuts against the side walls of the fixing ring 11 and the fixed rod 7, preventing the fixed rod 7 from sliding out of the interior of the fixing bracket 1, maintaining the connection stability and firmness between the fixed rod 7 and the metal rod 6, and facilitating the use of the joint 4 to connect the spiral coil 3 to the power supply system.

[0022] The cross-section of the side wall of the fixing bracket 1 is in a "U" shape, and the fixing brackets 1 are connected by a connecting plate 2 to increase the stability of the fixing bracket 1 and facilitate the fixing bracket 1 to provide support for the spiral coil 3.

[0023] The above are only embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A power supply control device, characterized in that, Comprising: A fixing frame (1), a spiral coil (3) is arranged between the fixing frames (1), both ends of the spiral coil (3) are threadedly connected to a metal rod (6) respectively, and a joint (4) is attached to the side wall of the fixing frame (1); one end of the joint (4) is fixedly connected to a fixing rod (7), one end of the metal rod (6) is provided with a plurality of metal elastic pieces (9), one end of the metal elastic piece (9) is fixedly connected to a hemispherical fixing block (8), the fixing block (8) abuts against the side wall of the joint (4), and the surface of the metal elastic piece (9) abuts against the inner side wall of the fixing rod (7).

2. The power supply control device according to claim 1, wherein The cross-section of the side wall of the fixing frame (1) is in a "U" shape, and the fixing frames (1) are connected by a connecting plate (2).

3. The power supply control device according to claim 1, characterized in that, The side wall of the metal elastic piece (9) is in an arc structure, and the maximum vertical gap between the metal elastic pieces (9) is greater than the inner diameter of the fixing rod (7).

4. The power supply control device according to claim 1, characterized in that A plurality of convex blocks (10) are arranged on the side wall of the metal elastic piece (9), and the convex blocks (10) are slidably connected to the inner side wall of the fixing rod (7).

5. The power supply control device according to claim 1, characterized in that, The side wall of the fixing frame (1) is threadedly connected to a screw rod (5), and the screw rod (5) abuts against the side wall of the fixing rod (7).

6. The power supply control device according to claim 5, characterized in that, A fixing ring (11) is fixedly connected to the side wall of the fixing rod (7), the side wall of the fixing ring (11) abuts against the side wall of the screw rod (5), and the cross-section of the side wall of the fixing ring (11) is in a right trapezoid structure.

Images