Electromagnetic shielding type high-voltage power supply

Abstract

The utility model relates to the technical field of high-voltage power supplies, in particular to an electromagnetic shielding type high-voltage power supply, which increases the sealing effect, prevents water and impurities outside the high-voltage power supply from entering a power supply shell, reduces electromagnetic noise or interference, and protects normal operation of equipment and a system. Comprising a power source shell, a covering assembly, fixing and pressing assemblies, a sealing assembly, a shielding assembly and a heat dissipation assembly, electronic components are arranged in the power source shell, the covering assembly is located at the top of the power source shell, the fixing and pressing assemblies are installed on the side walls of the front end and the rear end of the power source shell and fix the covering assembly, and the sealing assembly is installed between the bottom of the covering assembly and the power source shell. A shielding assembly is installed in the power source shell, and a heat dissipation assembly is installed in the power source shell.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of high voltage power supply especially relates to an electromagnetic shielding type high voltage power supply. BACKGROUND

[0002] At present, with the rapid development of modern power electronics technology and microelectronic technology, high voltage power supply is developing continuously, and high voltage power supply refers to the high voltage generator mainly used in insulation and leakage detection, adopts high frequency voltage multiplication circuit, applies the latest PWM high frequency pulse width modulation technology, closed loop adjustment, adopts voltage large feedback, makes voltage stability greatly improves, and is widely used in the AC withstand voltage test of cable, rotating electric machine and power capacitor, for example, the prior art announcement No. CN115038281A proposes a kind of high voltage power supply generator, including inner shell, on the opposite two outer sides of the inner shell, respectively set up vent, for the outside air to enter or discharge;Limiting assembly, be located on the two opposite inner sides of the inner shell, two shielding components, respectively in the limiting assembly on the two opposite inner sides of the inner shell slide;Drive device, be located in the inside of the inner shell, to drive shielding component to open or close vent;And circuit board and power generator, the circuit board and power generator are all arranged in the inside of inner shell.But the connection of the shell of the existing high voltage power supply is poor in sealing, lacks waterproof structure, in humid use environment, water is easily penetrated into, and electromagnetic interference can cause influence to internal element, lead to its service life greatly shorten. SUMMARY

[0003] To solve the above technical problems, the utility model provides an electromagnetic shielding type high voltage power supply which increases the sealing effect, prevents water and impurities outside the high voltage power supply from entering the inside of the power supply shell, reduces electromagnetic noise or interference, and protects the normal operation of equipment and systems.

[0004] The utility model discloses an electromagnetic shielding type high voltage power supply, including power supply shell, cover assembly, fixed compression assembly, sealing assembly, shielding assembly and heat dissipation component, electronic component is provided in power supply shell, cover assembly is located at the top of power supply shell, fixed compression assembly is installed on the sidewall of the two ends of power supply shell, and cover assembly is fixed, and sealing assembly is installed between the bottom of cover assembly and power supply shell, shielding assembly is installed in the inside of power supply shell, and heat dissipation component is installed in power supply shell;Through cover assembly, the inside of power supply shell is closed, fixed compression assembly fixes cover assembly, guarantees the stability of connection, simultaneously, sealing assembly can increase sealing effect, prevent water and impurities outside the high voltage power supply from entering the inside of power supply shell, simultaneously, shielding assembly can reduce electromagnetic noise or interference, protect the normal operation of equipment and systems, prevent or reduce external interference, and heat dissipation component can conduct the internal heat to the outside, guarantee equipment use.

[0005] Preferably, the cover assembly comprises a power cover and a positioning frame, the power cover is located above the power shell, the positioning frame is installed on the top of the power shell, and a positioning groove is formed in the bottom of the power cover corresponding to the positioning frame; the power cover is covered on the top of the power shell, the positioning frame enters the positioning groove in the bottom of the power cover, and the sealing connection between the power cover and the power shell is ensured.

[0006] Preferably, the fixed compression assembly comprises a plurality of fixed blocks, a plurality of rotating rods, a plurality of knobs, a plurality of driving bevel gears, a plurality of lead screws, a plurality of transmission bevel gears and a plurality of compression blocks, the plurality of fixed blocks are respectively installed on the left and right sides of the front and rear end side walls of the power shell, a driving cavity is formed in the lower part of the fixed block, the rotating rod is rotatably installed in the driving cavity, the driving bevel gear is installed on the outer wall of the rotating rod, the input end of the rotating rod penetrates through the outer wall of the fixed block and is provided with the knob, the upper part of the fixed block is provided with an extension slot, the compression block is slidably installed in the extension slot, the lead screw is rotatably installed in the middle part of the extension slot, the compression block is screwed on the outer wall of the lead screw, the transmission bevel gear is installed at the bottom of the lead screw and extends into the driving cavity, and the transmission bevel gear is engaged with the driving bevel gear; rotating the knob drives the rotating rod to rotate, the rotating rod drives the lead screw to rotate through the driving bevel gear and the transmission bevel gear, the lead screw drives the compression block to slide downward in the extension slot and contact the upper surface of the power cover, the power cover is compressed and fixed, the stability of the connection is ensured, the operation is convenient, the disassembly is convenient, and the internal components are convenient for maintenance.

[0007] Preferably, the sealing assembly comprises a sealing ring, a plug-in frame and a plurality of sealing strips, a sealing groove is formed in the top of the power shell, the sealing ring is installed on the bottom of the power cover corresponding to the sealing groove, the plug-in frame is installed on the bottom of the power cover, the plug-in frame is plug-in installed on the inner wall of the power shell, the sealing strips are installed on the outer wall of the plug-in frame, and a sealing ring groove is formed in the inner wall of the power shell; when the power cover is covered on the top of the power shell, the sealing ring is driven to enter the sealing groove, at the same time, the plug-in frame is inserted into the inside of the power shell, the sealing strips are inserted into the sealing ring groove, the sealing effect is increased, and water and impurities outside the high-voltage power supply are prevented from entering the inside of the power shell.

[0008] Preferably, the shielding assembly comprises a shielding layer and a shielding plate, a shielding cavity is formed in the middle part of the side wall of the power shell, the shielding layer is installed in the shielding cavity, and the shielding plate is installed in the inside of the power cover; the shielding layer and the shielding plate can reduce electromagnetic noise or interference, protect the normal operation of the equipment and system, and prevent or reduce external interference.

[0009] Preferably, the heat dissipation assembly comprises a plurality of heat conducting pipes and a plurality of hollow heat dissipation plates, the plurality of hollow heat dissipation plates are respectively installed on the left and right end side walls and the rear end side wall of the power shell, the heat conducting pipes are located in the inside of the power shell corresponding to the hollow heat dissipation plates and are in communication with the hollow heat dissipation plates, and the inside of the hollow heat dissipation plate is provided with heat conducting oil; the heat in the inside of the power shell is conducted into the heat conducting oil through the heat conducting pipes, the heat conducting oil conducts the heat into the hollow heat dissipation plate, the heat is dissipated outward, and the use of the equipment is ensured.

[0010] Preferably, the heat dissipation fins and the insulating rubber pads are arranged on the outer wall of the inner hollow heat dissipation plate and the bottom of the power supply shell, respectively.

[0011] Compared with the prior art, the utility model has the advantages that: the power supply shell is closed by the cover assembly, the cover assembly is fixed by the fixed compression assembly, the stability of the connection is ensured, the sealing effect is improved by the sealing assembly, the water and impurities outside the high-voltage power supply are prevented from entering the power supply shell, the electromagnetic noise or interference is reduced by the shielding assembly, the normal operation of the equipment and system is protected, the external interference is prevented or reduced, and the internal heat is conducted outward by the heat dissipation assembly, so that the use of the equipment is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a lower part three-dimensional structure schematic diagram of the utility model;

[0014] Figure 3 It is a front view structure schematic diagram of the utility model;

[0015] Figure 4 It is an upper part sectional structure schematic diagram of the utility model;

[0016] Figure 5 It is a front view sectional structure schematic diagram of the utility model;

[0017] Figure 6 It is a structure schematic diagram of the fixed compression assembly of the utility model;

[0018] Mark in the drawing: 1, power supply shell;2, power supply cover;3, positioning frame;4, sealing ring;5, insert frame;6, sealing strip;7, shielding layer;8, shielding plate;9, heat pipe;10, inner hollow heat dissipation plate;11, heat dissipation fin;12, insulating rubber pad;13, fixed block;14, rotating rod;15, knob;16, driving bevel gear;17, screw;18, transmission bevel gear;19, compression block. DETAILED DESCRIPTION

[0019] In order to facilitate understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The utility model can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0020] As Figures 1 to 5As shown, the power shell 1 is provided with electronic components, the power cover 2 is located above the power shell 1, the power shell 1 top is provided with a positioning frame 3, the power cover 2 bottom is provided with a positioning slot corresponding to the positioning frame 3, a plurality of fixed blocks 13 are respectively installed on the left and right sides of the front and rear end side walls of the power shell 1, the lower part of the fixed block 13 is provided with a drive cavity, the rotating rod 14 is rotatably installed in the drive cavity, the outer wall of the rotating rod 14 is provided with a drive bevel gear 16, the input end of the rotating rod 14 is provided with a knob 15 through the outer wall of the fixed block 13, the upper part of the fixed block 13 is provided with an extension slot, the lower part of the compression block 19 is slidably installed in the extension slot, the middle part of the extension slot is rotatably installed with a lead screw 17, the compression block 19 is screwed on the outer wall of the lead screw 17, the bottom of the lead screw 17 is provided with a transmission bevel gear 18, the transmission bevel gear 18 is engaged with the drive bevel gear 16, the top of the power shell 1 is provided with a sealing groove, the bottom of the power cover 2 is provided with a sealing ring 4 corresponding to the sealing groove, the bottom of the power cover 2 is provided with an insert frame 5, the insert frame 5 is inserted into the inner wall of the power shell 1, the outer wall of the insert frame 5 is provided with a sealing strip 6, the inner wall of the power shell 1 is provided with a sealing ring groove, the middle part of the side wall of the power shell 1 is provided with a shielding cavity, the shielding layer 7 is installed in the shielding cavity, the inner part of the power cover 2 is provided with a shielding plate 8, a plurality of hollow heat sinks 10 are respectively installed on the left and right ends and the rear end side wall of the power shell 1, the heat conducting pipe 9 is located in the power shell 1 corresponding to the hollow heat sink 10 and is communicated with the hollow heat sink 10, the inner part of the hollow heat sink 10 is provided with heat conducting oil, a plurality of heat dissipation fins 11 are uniformly arranged on the outer wall of the hollow heat sink 10, a plurality of insulating rubber pads 12 are installed at the four corners of the bottom of the power shell 1;

[0021] The power cover 2 is covered on the top of the power shell 1, the positioning frame 3 enters the positioning slot at the bottom of the power cover 2, the connection sealing between the power cover 2 and the power shell 1 is ensured, the rotating knob 15 drives the rotating rod 14 to rotate, the rotating rod 14 drives the lead screw 17 to rotate through the drive bevel gear 16 and the transmission bevel gear 18, the lead screw 17 drives the compression block 19 to slide downward in the extension slot and contacts with the upper surface of the power cover 2, the power cover 2 is compressed and fixed, the stability of the connection is ensured, the operation is convenient, the disassembly is convenient, the internal components can be easily maintained, the sealing ring 4 is driven into the sealing groove when the power cover 2 is covered on the top of the power shell 1, at the same time, the insert frame 5 is inserted into the inner part of the power shell 1, the sealing strip 6 is inserted into the sealing ring groove, the sealing effect is increased, the water and impurities outside the high-voltage power supply are prevented from entering the inner part of the power shell, the electromagnetic noise or interference can be reduced through the shielding layer 7 and the shielding plate 8, the normal operation of the equipment and system is protected, the external interference is prevented or reduced, the heat in the power shell 1 is conducted into the heat conducting oil through the heat conducting pipe 9, the heat conducting oil conducts the heat into the hollow heat sink 10, the heat is dissipated outward, the equipment use is ensured, the heat dissipation area of the hollow heat sink 10 can be increased through the heat dissipation fins 11, the heat dissipation effect is improved, the power shell 1 can be supported through the insulating rubber pads 12.

[0022] As Figures 1 to 6As shown, the electromagnetic shielding type high-voltage power supply of the utility model, in working, will power cover 2 cover install in power shell 1 top, positioning frame 3 enters the positioning slot of power cover 2 bottom, power cover 2 cover installs in power shell 1 top when drive sealing ring 4 enters sealing groove, simultaneously, insert frame 5 into power shell 1 inside, make sealing strip 6 enter sealing ring groove, increase sealing effect, rotate knob 15 drive rotating lever 14 rotation, rotating lever 14 drive screw rod 17 rotation through driving bevel gear 16 and transmission bevel gear 18, screw rod 17 drive compression block 19 in telescopic groove and slide down, with power cover 2 upper surface contact, carry out compression fixed to power cover 2, shielding layer 7 and shielding plate 8 can reduce electromagnetic noise or interference, protect the normal operation of equipment and system, prevent or reduce external interference, the heat in the power shell 1 inside is conducted into heat conducting oil through heat pipe 9, heat conducting oil will heat conduction into the inner empty heat sink 10, heat is radiated outward, and the heat dissipation fin 11 can increase the heat dissipation area of the inner empty heat sink 10.

[0023] The shielding layer 7, the shielding plate 8, the heat pipe 9 and the inner empty heat sink 10 of the electromagnetic shielding type high-voltage power supply of the utility model are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, without the technical personnel in the field having to pay creative labor.

[0024] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary technical personnel in the technical field, several improvements and modifications can be made without departing from the technical principles of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. An electromagnetic shielded high voltage power supply, characterized by, The utility model provides a power supply shell, lid assembly, fixed compression assembly, sealing assembly, shielding assembly and heat dissipation assembly, electronic components are arranged in the power supply shell (1), the lid assembly is located the top of power supply shell (1), fixed compression assembly is installed on the side wall of the front and rear ends of power supply shell (1), and lid assembly is fixed, and sealing assembly is installed between the bottom of lid assembly and power supply shell (1), shielding assembly is installed in the inside of power supply shell (1), and heat dissipation assembly is installed in the inside of power supply shell (1).

2. The electromagnetic shielding type high voltage power supply according to claim 1, wherein The lid assembly comprises a power supply cover (2) and a positioning frame (3), the power supply cover (2) is located above the power supply shell (1), the positioning frame (3) is installed on the top of the power supply shell (1), and the bottom of the power supply cover (2) is provided with a positioning groove corresponding to the positioning frame (3).

3. The electromagnetic shielding type high voltage power supply according to claim 1, wherein The fixed compression assembly comprises a plurality of fixed blocks (13), a plurality of rotating rods (14), a plurality of knobs (15), a plurality of driving bevel gears (16), a plurality of lead screws (17), a plurality of transmission bevel gears (18) and a plurality of compression blocks (19), the plurality of fixed blocks (13) are respectively installed on the left and right sides of the side walls of the front and rear ends of the power supply shell (1), the lower part of the fixed block (13) is provided with a driving cavity, the rotating rod (14) is rotatably installed in the driving cavity, the driving bevel gear (16) is installed on the outer wall of the rotating rod (14), the input end of the rotating rod (14) penetrates the outer wall of the fixed block (13) and is provided with the knob (15), the upper part of the fixed block (13) is provided with an expansion slot, the lower part of the compression block (19) is slidably installed in the expansion slot, the lead screw (17) is rotatably installed in the middle part of the expansion slot, the compression block (19) is screwed on the outer wall of the lead screw (17), the transmission bevel gear (18) is installed at the bottom of the lead screw (17) and extends into the driving cavity, and the transmission bevel gear (18) is engaged with the driving bevel gear (16).

4. The electromagnetic shielding type high voltage power supply according to claim 2, wherein The sealing assembly comprises a sealing ring (4), a plug-in frame (5) and a plurality of sealing strips (6), the top of the power supply shell (1) is provided with a sealing groove, the bottom of the power supply cover (2) is provided with the sealing ring (4) corresponding to the sealing groove, the bottom of the power supply cover (2) is provided with the plug-in frame (5), the plug-in frame (5) is plug-in installed on the inner wall of the power supply shell (1), the outer wall of the plug-in frame (5) is provided with the sealing strip (6), and the inner wall of the power supply shell (1) is provided with a sealing ring groove.

5. The electromagnetic shielding type high voltage power supply according to claim 2, wherein The shielding assembly comprises a shielding layer (7) and a shielding plate (8), the middle part of the side wall of the power supply shell (1) is provided with a shielding cavity, the shielding layer (7) is installed in the shielding cavity, and the inside of the power supply cover (2) is provided with the shielding plate (8).

6. The electromagnetic shielding type high voltage power supply according to claim 1, wherein The heat dissipation assembly comprises a plurality of heat conducting pipes (9) and a plurality of hollow heat dissipation plates (10), the plurality of hollow heat dissipation plates (10) are respectively installed on the side walls of the left and right ends and the rear end of the power supply shell (1), the heat conducting pipe (9) is located in the inside of the power supply shell (1) corresponding to the hollow heat dissipation plate (10) and communicates with the hollow heat dissipation plate (10), and the inside of the hollow heat dissipation plate (10) is provided with heat conducting oil.

7. The electromagnetic shielding type high voltage power supply according to claim 6, wherein It also comprises a plurality of heat dissipation fins (11) and a plurality of insulating rubber pads (12), a plurality of heat dissipation fins (11) are uniformly arranged and installed on the outer wall of the hollow heat dissipation plate (10), and a plurality of insulating rubber pads (12) are installed at the four corners of the bottom of the power supply shell (1).

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