High-frequency switching power supply control box

Abstract

The invention relates to the field of switching power supplies, and discloses a high-frequency switching power supply control box which comprises an outer box body and a cover plate, the top of the outer box body is open, the cover plate is installed above the outer box body through bolts and seals the opening in the top of the outer box body, and heat dissipation air inlet windows are symmetrically formed in the side surfaces of the outer box body. A cover plate is arranged in the outer box body, a heat dissipation exhaust window is formed in one side of the top of the cover plate, an exhaust fan is installed in the outer box body, the exhaust fan corresponds to the heat dissipation exhaust window in position, a circuit board is installed on the lower portion in the outer box body, butt joint terminals are evenly arranged on the front side of the circuit board, and a turnover top plate is arranged on the front side of the box body. And the front side of the top plate is hinged with a front plate, so that the top plate is in a horizontal state when the top plate is closed, the front plate is vertically downward at the moment, the protection effect on the terminal is improved, and the stability of the closed state after the front plate is opened is ensured through an external mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of switching power supplies, in particular to a high-frequency switching power supply control box. Background Art

[0002] High-frequency switching power supply is a power supply device that converts electric energy through high-frequency switching technology. It has the advantages of high efficiency, small size, light weight, high reliability, etc. It is widely used in communications, computers, industrial control, power and other fields. The working principle of high-frequency switching power supply is to convert the input AC power into DC power through rectification and filtering, and then convert the DC power into high-frequency AC power through high-frequency switching devices, and then transform it through a transformer, and finally output the required DC power after rectification and filtering.

[0003] In order to facilitate connection with an external power source, the existing power control box has connection terminals on the outside of the box body to facilitate docking between the control box and external wires. However, the connection terminals exposed to the outside are at risk of leakage when in use. Leakage will occur when accidentally touched or spilled with water, so there is a safety hazard. If the connection terminals are placed inside the box body, it will be inconvenient to connect external wires. In addition, the control box is mostly fixed by the cooperation of extended ear plates and bolts on both sides, and the ear plates of the control box are a fixed structure, which reduces the flexibility of the control box when installed. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a high-frequency switching power supply control box to solve the problems of protecting the connection terminals exposed outside the control box, preventing leakage, and improving the safety of the power supply control box.

[0005] To achieve the above purpose, the present invention is implemented through the following technical solutions: a high-frequency switching power supply control box, including an outer box body and a cover plate, the top of the outer box body is open, the cover plate is installed on the top of the outer box body by bolts, and the cover plate is sealed to the top opening of the outer box body, the side surface of the outer box body is symmetrically provided with heat dissipation air inlet windows, one side of the top of the cover plate is provided with a heat dissipation exhaust window, an exhaust fan is installed inside the outer box body, the exhaust fan corresponds to the position of the heat dissipation exhaust window, a circuit board is installed at the lower part of the inner part of the outer box body, the front side of the circuit board is evenly provided with docking terminals, the docking terminals are placed outside the sealing area of ​​the cover plate, and the docking terminals are connected to electrical line, a protective mechanism is arranged on the front side of the interior of the outer box body, and the protective mechanism is placed above the docking terminal. The protective mechanism includes a top plate which is horizontally rotatably installed on the inner walls on both sides of the outer box body, a front plate is hinged at the front end of the top plate, and notch grooves are evenly opened on the side edges of the front side of the front plate, and the notch grooves correspond to the multiple docking terminals one by one, and supporting convex strips are arranged in front of the inner walls on both sides of the outer box body, and the supporting convex strips correspond to the two sides of the top plate, an extension bolt is arranged on one side of the rotation axis of the top plate, and the extension bolt passes through the side surface of the outer box body, an insulating sleeve is fixed to the end of the extension bolt, and the insulating sleeve is placed on the outside of the outer box body, and a toggle rod is horizontally arranged on one side of the insulating sleeve.

[0006] Furthermore, two limiting grooves are provided on the surface of the insulating sleeve, and the two limiting grooves are distributed in an angle, wherein the limiting groove located at the front side is parallel to the top plate.

[0007] Furthermore, a convex plate is provided on the side surface of the outer box body, and the convex plate is placed directly above the insulating sleeve. A sliding rod is vertically slidably installed on the surface of the convex plate, and a limiting rod is provided at the bottom of the sliding rod, and the bottom of the limiting rod is adapted to the internal size of the limiting groove.

[0008] Furthermore, a horizontal plate is arranged on the top of the slide rod, a spring A is sleeved on the surface of the slide rod, and the spring A is placed between the convex plate and the limiting rod.

[0009] Furthermore, extension plates are symmetrically arranged below both sides of the outer box body, and two parallel track rods are arranged between the two extension plates on the same side. Positioning holes are evenly opened on the outer surface of the outer box body, and the positioning holes are distributed along the axis of the track rods, and the positioning holes are placed between the two track rods.

[0010] Furthermore, two movable connecting plates are slidably installed on the surfaces of the two track rods on the same side, the movable connecting plates are L-shaped, and through grooves are opened on the horizontal surfaces of the movable connecting plates.

[0011] Furthermore, a storage hole is provided on the inner surface of the movable connecting plate, a connecting rod is slidably installed on the central surface of the movable connecting plate, a clamping plate is provided at the end of the connecting rod, the clamping plate slides inside the storage hole, the end of the clamping plate is adapted to the internal size of the positioning hole, an I-shaped butt joint is provided at the end of the connecting rod away from the clamping plate, and the I-shaped butt joint is placed on the outside of the movable connecting plate.

[0012] Furthermore, a spring B is sleeved on the surface of the connecting rod, and the spring B is placed inside the receiving hole, and one end of the spring B is in contact with the clamping plate.

[0013] Furthermore, mounting plates are symmetrically arranged above the outer surface of the movable connecting plate, a control plate is rotatably installed between the two mounting plates, a downwardly open U-shaped fork is arranged at the bottom of the control plate, and the U-shaped fork is clamped on the I-shaped butt joint.

[0014] The present invention provides a high-frequency switching power supply control box. It has the following beneficial effects: 1. The present invention provides a reversible top plate on the front side of the box body to protect the top of the butt terminal exposed to the outside, and a front plate is hinged on the front side of the top plate so that it is in a horizontal state when the top plate is closed. At this time, the front plate is vertically downward to improve the protection effect of the terminal, and the stability of the state of the front plate when it is opened and closed is ensured by an external mechanism.

[0015] 2. The present invention is provided with a plurality of notches corresponding to the docking terminals at the bottom of the front plate to isolate and guide the connected external wires to prevent two adjacent wires from contacting each other. When a single wire is burned due to a short circuit, it will not affect other wires, thereby improving the safety of the switching power supply.

[0016] 3. The present invention provides movable connection plates with adjustable positions on both sides of the power control box, and then fixes the power control box through the cooperation of movable connection and bolts, thereby improving the flexibility of the power control box during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the box body of the present invention when it is in an open state; Figure 2 It is a schematic diagram of the three-dimensional structure of the protective mechanism of the present invention in a closed state; Figure 3 It is a schematic diagram of the three-dimensional structure of the protection mechanism of the present invention; Figure 4 For the present invention Figure 1 A schematic diagram of the enlarged three-dimensional structure of region A; Figure 5 For the present invention Figure 1 A schematic diagram of the enlarged three-dimensional structure of region B; Figure 6It is a schematic diagram of the cross-sectional structure of the movable connecting plate of the present invention.

[0018] Among them, 1. outer box body; 101. heat dissipation air inlet window; 102. extension plate; 103. track rod; 104. positioning hole; 105. supporting convex strip; 106. convex plate; 2. cover plate; 201. heat dissipation air outlet window; 3. exhaust fan; 4. circuit board; 401. docking terminal; 5. wire; 6. protection mechanism; 601. top plate; 602. front plate; 603. notch groove; 604. extension bolt; 7. insulating sleeve; 701. toggle rod; 702. limit groove; 8. slide rod; 801. limit rod; 802. cross plate; 803. spring A; 9. movable connecting plate; 901. mounting plate; 902. control board; 903. U-shaped fork; 904. storage hole; 905. connecting rod; 906. card plate; 907. spring B; 908. I-shaped butt joint; 909. through groove. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0020] Please refer to Figure 1 and Figure 2As shown, an embodiment of the present invention provides a high-frequency switching power supply control box, including an outer box body 1 and a cover plate 2, the top of the outer box body 1 is open, the cover plate 2 is installed on the top of the outer box body 1 by bolts, and the cover plate 2 is sealed to the top opening of the outer box body 1, and the actual sealing area is the right side area of ​​the outer box body 1, wherein the top and the front side of the left part area are open, the side surface of the outer box body 1 is symmetrically provided with heat dissipation air inlet windows 101, and a heat dissipation air exhaust window 201 is provided on one side of the top of the cover plate 2, and an exhaust fan 3 is installed inside the outer box body 1, and the exhaust fan 3 corresponds to the heat dissipation air exhaust window 201 in position, and the exhaust fan 3 can extract the hot gas inside the outer box body 1 and discharge it through the heat dissipation exhaust window 201 on the top, and at this time, when the internal pressure of the outer box body 1 is reduced, the heat dissipation air inlet windows 101 on both sides can be used. 01 sucks air inward, a circuit board 4 is installed at the lower part of the outer box body 1, and the circuit board 4 is used to rectify and filter the input alternating current and convert it into direct current, and then the direct current is converted into high-frequency alternating current through a high-frequency switch, and then transformed through a transformer, and a series of conversion work is performed. The front side of the circuit board 4 is evenly provided with docking terminals 401, and the docking terminals 401 are placed outside the sealing area of ​​the cover plate 2, and the docking terminals 401 are between the two side walls of the outer box body 1, and the top and front are both in an open state, so as to facilitate the installation and docking of the wire 5. The docking terminal 401 is connected to the wire 5, and the docking terminal 401 squeezes the bare wire part of the wire 5 through a screw to realize the connection between the wire 5 and the docking terminal 401, thereby ensuring the connectivity of the circuit.

[0021] Please refer to Figure 1-Figure 4As shown, a protective mechanism 6 is provided on the front side of the inner part of the outer box body 1, the protective mechanism 6 is placed above the docking terminal 401, and the protective mechanism 6 is placed on the front side of the outer cover 2, the protective mechanism 6 includes a top plate 601 which is rotatably installed on the inner walls on both sides of the outer box body 1, so that the top plate 601 can rotate around its installation axis, and when the top plate 601 is in a vertical state, it is limited by the outer surface of the cover 2, and a front plate 602 is hinged at the front end of the top plate 601, and the front plate 602 can be vertically downward when it is horizontal to the top plate 601 due to its own weight, so as to protect the front side of the docking terminal 401, and notch grooves 603 are evenly opened on the side of the front side of the front plate 602, and the notch grooves 603 correspond to a plurality of docking terminals 401 one by one, and the external wires 5 can be isolated by a plurality of notch grooves 603 after docking with the docking terminal 401, so as to prevent two adjacent wires 5 from contacting, so as to To comb multiple wires 5, support ridges 105 are provided in front of the inner walls on both sides of the outer box body 1, and the support ridges 105 correspond to the two sides of the top plate 601. When the top plate 601 is in a horizontal state, it can be supported by the support ridges 105 to keep it in a horizontal state. An extension bolt 604 is provided on one side of the rotating axis of the top plate 601, and the extension bolt 604 can rotate together with the top plate 601. The extension bolt 604 penetrates the side surface of the outer box body 1, and an insulating sleeve 7 is fixed to the end of the extension bolt 604. The insulating sleeve 7 rotates with the extension bolt 604. The insulating sleeve 7 is placed on the outside of the outer box body 1, and a toggle rod 701 is horizontally provided on one side of the insulating sleeve 7. When operating the protective mechanism 6, the extension bolt 604 can be driven to rotate by the external toggle rod 701 to prevent the protective mechanism 6 from being energized due to leakage, thereby improving the safety during operation.

[0022] Among them, the top plate 601 and the front plate 602 are in an external hinged state, so when the top plate 601 rotates, the front plate 602 can always maintain a vertical downward state, and then when the top plate 601 is horizontal, the front side can be protected by the front plate 602. When the top plate 601 is vertically upward, the front plate 602 is suspended in the air and tends to be parallel to the top plate 601, so that the top of the docking terminal 401 is open for easy installation operation.

[0023] Please refer to Figure 1 and Figure 4As shown, two limiting grooves 702 are provided on the surface of the insulating sleeve 7, and the two limiting grooves 702 are distributed at 90 degrees. The front limiting groove 702 is parallel to the top plate 601, so that when the top plate 601 is respectively in a vertically upward or horizontally forward position, the two limiting grooves 702 are respectively open upward. A convex plate 106 is provided on the side surface of the outer box body 1, and the convex plate 106 is placed directly above the insulating sleeve 7. A slide bar 8 is vertically slidably installed on the surface of the convex plate 106. The convex plate 106 limits the slide bar 8 so that the slide bar 8 can only slide in the vertical direction. A limiting rod 801 is provided at the bottom of the slide bar 8. The cross-sectional size of the limiting rod 801 is larger than that of the slide bar 8. The bottom of the limiting rod 801 is adapted to the internal size of the limiting groove 702, so that the position of the top plate 601 can be kept stable through the cooperation of the two to prevent changes in non-human operations.

[0024] Among them, a horizontal plate 802 is set on the top of the sliding rod 8, and the horizontal plate 802 and the sliding rod 8 form a T-shaped structure, so that the staff can pull up the sliding rod 8. A spring A803 is sleeved on the surface of the sliding rod 8, and the spring A803 is placed between the convex plate 106 and the limiting rod 801. The elastic force of the spring A803 can be used to make the limiting rod 801 have a downward force, so that it can be automatically limited after the top plate 601 is rotated into place.

[0025] Please refer to Figure 1 and Figure 5 As shown, extension plates 102 are symmetrically arranged at the lower sides of the outer box body 1, and two parallel track rods 103 are arranged between the two extension plates 102 on the same side. Positioning holes 104 are evenly opened on the outer surface of the outer box body 1, and the positioning holes 104 are distributed along the axis of the track rod 103, and the positioning holes 104 are placed between the two track rods 103. Two movable connecting plates 9 are slidably installed on the surfaces of the two track rods 103 on the same side, and the positions of the positioning holes 104 are placed at the center of the vertical section of the movable connecting plate 9. The movable connecting plate 9 has an L-shaped structure, and the L-shaped movable connecting plate 9 is divided into a vertical section and a horizontal section. A through slot 909 is opened on the horizontal surface of the movable connecting plate 9. When installing, the bolts pass through the through slot 909, and the position of the bolts can be fine-tuned.

[0026] Among them, when the distance between the two movable connecting plates 9 on the same side is equal to the distance on both sides, that is, the four movable connecting plates 9 can form a square structure, at this time, the four original square distributed threaded holes on the wall can be used to realize the angle adjustment of the outer box body 1, so as to realize the adjustment of the direction of the docking terminal 401, and the bottom of the movable connecting plate 9 is lower than the outer box body 1. No matter it is installed horizontally or vertically, a certain distance is retained between the bottom of the outer box body 1 and the wall to facilitate heat dissipation.

[0027] Please refer to Figure 5 and Figure 6As shown, a storage hole 904 is provided on the inner surface of the movable connecting plate 9, a connecting rod 905 is slidably installed on the central surface of the movable connecting plate 9, a clamping plate 906 is provided at the end of the connecting rod 905, the clamping plate 906 slides inside the storage hole 904, the end of the clamping plate 906 is adapted to the inner size of the positioning hole 104, so that the position of the movable connecting plate 9 can be fixed by the cooperation of the two, and an I-shaped butt joint 908 is provided on the end of the connecting rod 905 away from the clamping plate 906, and the I-shaped butt joint 908 is placed on the outside of the movable connecting plate 9.

[0028] Among them, a spring B907 is sleeved on the surface of the connecting rod 905, and the spring B907 is placed inside the storage hole 904. One end of the spring B907 contacts the card plate 906. The elastic force of the spring B907 makes the card plate 906 always have the force to lower the outer box body 1. When there is no force, the card plate 906 can be pushed to cooperate with the positioning hole 104, while ensuring that the control board 902 is in a vertical state. The mounting plates 901 are symmetrically arranged above the outer surface of the movable connecting plate 9, and the two mounting plates 901 are rotatably mounted between them. There is a control board 902, which extends beyond the upper surface of the movable connecting plate 9 to facilitate pressing the top of the control board 902. A downwardly open U-shaped fork 903 is provided at the bottom of the control board 902. The U-shaped fork 903 is clamped on the I-shaped butt joint 908, so that when the top of the control board 902 is pressed, the U-shaped fork 903 at the bottom rotates outward, and then the clamping plate 906 is pulled into the storage hole 904 through cooperation with the I-shaped butt joint 908, so that it loses cooperation with the positioning hole 104.

[0029] Working principle: The distance between the two movable connecting plates 9 can be adjusted according to the needs of use. When adjusting, the top of the control plate 902 can be pressed to make the U-shaped fork 903 at the bottom flip outward, thereby driving the I-shaped butt joint 908 to move outward, pulling the card plate 906 out of the cooperation with the positioning hole 104. At this time, the movable connecting plate 9 can be moved, and then the distance between them can be adjusted for easy installation. At the same time, due to the existence of the spring A803, the limit rod 801 always has a downward force, which can be fixed by the cooperation of the limit rod 801 and the limit groove 702. The two limit grooves 702 are respectively rotated to the upward direction when the top plate 601 is in a vertically upward or horizontally forward position, thereby achieving fixation. Conversely, when adjusting, the cross plate 802 can be lifted to drive the limit rod 801 to move upward to make it out of the limit groove 702. , the top plate 601 can be driven to rotate by the rotation of the toggle rod 701. When the wire 5 needs to be installed, the protective mechanism 6 can be controlled to be in a vertically upward state. At this time, the front plate 602 will tend to be vertically downward due to its own weight. At this time, the tops of multiple docking terminals 401 are open, so that the docking terminals 401 can be operated by tools to lock and fix the wires 5. Conversely, after the wires 5 are installed in place, the toggle rod 701 is rotated in the opposite direction to make the top plate 601 move horizontally forward. At this time, it is supported by the supporting convex strips 105 to improve the stability of the horizontal state of the top plate 601. At this time, also due to its own weight, the front plate 602 will move vertically downward and be placed in front of the multiple docking terminals 401, thereby achieving protection, and the installed wires 5 can pass through the notch grooves 603 to isolate the wires 5.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-frequency switching power supply control box, comprising an outer box body (1) and a cover plate (2), wherein the outer box body (1) is open at the top, the cover plate (2) is mounted on the outer box body (1) by bolts, and the cover plate (2) is sealed to the top opening of the outer box body (1), characterized in that: The side surface of the outer box body (1) is symmetrically provided with heat dissipation air inlet windows (101), the top side of the cover plate (2) is provided with a heat dissipation air outlet window (201), an exhaust fan (3) is installed inside the outer box body (1), and the exhaust fan (3) corresponds to the position of the heat dissipation air outlet window (201), a circuit board (4) is installed at the lower part of the inner part of the outer box body (1), and docking terminals (401) are evenly arranged on the front side of the circuit board (4), the docking terminals (401) are placed outside the sealing area of ​​the cover plate (2), and the docking terminals (401) are connected to the wires (5), and a protective mechanism (6) is arranged on the front side of the inner part of the outer box body (1), and the protective mechanism (6) is placed above the docking terminals (401), and the protective mechanism (6) includes a horizontally rotatable installation on the outer box body (1) ) on both sides of the inner wall, the front end of the top plate (601) is hinged with a front plate (602), the front side of the front plate (602) is evenly provided with notch grooves (603), the notch grooves (603) correspond one to one with the plurality of docking terminals (401), the front of the inner wall on both sides of the outer box body (1) are provided with supporting convex strips (105), the supporting convex strips (105) correspond to both sides of the top plate (601), an extension bolt (604) is provided on one side of the rotation axis of the top plate (601), the extension bolt (604) passes through the side surface of the outer box body (1), an insulating sleeve (7) is fixed to the end of the extension bolt (604), the insulating sleeve (7) is placed on the outside of the outer box body (1), and a toggle rod (701) is transversely provided on one side of the insulating sleeve (7).

2. A high-frequency switching power supply control box according to claim 1, characterized in that: The surface of the insulating sleeve (7) is provided with two limiting grooves (702), the two limiting grooves (702) are distributed at 90 degrees, and the limiting groove (702) located at the front side is parallel to the top plate (601).

3. A high-frequency switching power supply control box according to claim 2, characterized in that: A convex plate (106) is provided on the side surface of the outer box body (1), and the convex plate (106) is placed directly above the insulating sleeve (7). A sliding rod (8) is vertically slidably mounted on the surface of the convex plate (106), and a limiting rod (801) is provided at the bottom of the sliding rod (8), and the bottom of the limiting rod (801) is adapted to the internal dimensions of the limiting groove (702).

4. A high-frequency switching power supply control box according to claim 3, characterized in that: A transverse plate (802) is arranged on the top of the sliding rod (8), a spring A (803) is sleeved on the surface of the sliding rod (8), and the spring A (803) is placed between the convex plate (106) and the limiting rod (801).

5. A high frequency switching power supply control box according to claim 1, characterized in that: Extension plates (102) are symmetrically arranged below both sides of the outer box body (1), and two mutually parallel track rods (103) are arranged between the two extension plates (102) on the same side. Positioning holes (104) are evenly arranged on the outer surface of the outer box body (1), and the positioning holes (104) are distributed along the axis of the track rod (103), and the positioning holes (104) are placed between the two track rods (103).

6. A high-frequency switching power supply control box according to claim 5, characterized in that: Two movable connecting plates (9) are slidably mounted on the surfaces of the two track rods (103) on the same side. The movable connecting plates (9) are L-shaped in structure, and a through groove (909) is provided on the horizontal surface of the movable connecting plates (9).

7. A high-frequency switching power supply control box according to claim 6, characterized in that: The inner surface of the movable connecting plate (9) is provided with a receiving hole (904); a connecting rod (905) is slidably mounted on the central surface of the movable connecting plate (9); a clamping plate (906) is arranged at the end of the connecting rod (905); the clamping plate (906) slides inside the receiving hole (904); the end of the clamping plate (906) is adapted to the inner size of the positioning hole (104); an I-shaped butt joint (908) is arranged at one end of the connecting rod (905) away from the clamping plate (906); the I-shaped butt joint (908) is placed outside the movable connecting plate (9).

8. A high-frequency switching power supply control box according to claim 7, characterized in that: A spring B (907) is sleeved on the surface of the connecting rod (905), and the spring B (907) is placed inside the receiving hole (904). One end of the spring B (907) is in contact with the clamping plate (906).

9. A high-frequency switching power supply control box according to claim 8, characterized in that: Mounting plates (901) are symmetrically arranged above the outer surface of the movable connecting plate (9), a control plate (902) is rotatably mounted between the two mounting plates (901), a downwardly open U-shaped shift fork (903) is arranged at the bottom of the control plate (902), and the U-shaped shift fork (903) is clamped on the I-shaped butt joint (908).

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