CN221225975U

CN221225975U - Pin electric connection structure of direct-current medium-voltage step-up transformer

Info

Publication number: CN221225975U
Application number: CN202322753738.2U
Authority: CN
Inventors: 王仁文; 董铁军; 张力; 彭康迪
Original assignee: Hubei Electric Power Equipment Co ltd
Current assignee: Hubei Electric Power Equipment Co ltd
Priority date: 2023-10-13
Filing date: 2023-10-13
Publication date: 2024-06-25
Anticipated expiration: 2033-10-13

Abstract

The utility model discloses a pin electric connection structure of a direct current medium voltage step-up transformer, which belongs to the technical field of transformers and comprises a transformer body and a circuit board, wherein the transformer body is electrically connected with the circuit board, the transformer body comprises an iron core, the lower surface of the iron core is fixedly connected with pins through a fixed block, the lower ends of the pins are provided with cavities, and a fast-disassembly clamping mechanism matched with the circuit board for use is arranged in the cavities.

Description

Pin electric connection structure of direct-current medium-voltage step-up transformer

Technical Field

The utility model relates to the technical field of transformers, in particular to a pin electric connection structure of a direct-current medium-voltage step-up transformer.

Background

The working principle of the DC step-up transformer is based on the principles of inductance and capacitance, and the DC signal input by a power supply is converted into a high-voltage DC signal through a voltage doubling circuit, so that the step-up effect is realized, when the existing DC medium-voltage step-up transformer is connected with a circuit board through a pin, the pin and the circuit board are generally fixed in a welded fixing mode, but the later maintenance of workers is inconvenient, the pins of the transformer are inconvenient to assemble and disassemble, the pins are damaged due to forced assembly and disassembly of the pins, and the maintenance work difficulty of the workers is further increased.

According to publication No.: the utility model provides a pin connection structure of a power adapter, which is proposed by CN206272502U, and comprises a surface shell, a bottom shell, a power circuit board and pins; the surface shell is provided with a concave cavity for accommodating the power circuit board; the pins comprise power supply connecting sheets and pins; the bottom shell is provided with a groove, and the bottom of the groove is provided with a fixing seat for fixing the upper end of the power supply connecting sheet; the power circuit board is provided with a metal mounting piece matched with the pins; the mounting piece comprises two fixing pieces and a connecting section for connecting the two fixing pieces; the side surface of the fixing piece is provided with a convex structure matched with the pin; the pin is inserted between the two fixing sheets through the fixing seat and the upper end of the power connection sheet, the convex structure is abutted against the two side faces of the pin, the fixing reliability is high, the loosening is not easy, the electric connection stability is strong, the integrity is strong, and meanwhile, the assembly is very easy; the whole structure is simple, and the cost is low.

According to the description, the pins in the direct-current medium-voltage step-up transformer are connected with the circuit board in a welding mode, so that the later maintenance work difficulty is increased, workers can not conveniently disassemble and assemble the pins and the circuit board, and in order to solve the problem, the pin electric connection structure of the direct-current medium-voltage step-up transformer is provided.

Disclosure of utility model

The utility model aims to provide a pin electric connection structure of a direct-current medium-voltage step-up transformer, which enables the pins to be connected with a circuit board in a clamping and releasing way through a clamping mechanism in the original welding connection way, is convenient for workers to maintain the transformer and the circuit board, reduces the damage degree of the pins, and therefore reduces the difficulty of the workers in maintenance work, and solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a direct current medium voltage step-up transformer pin electricity connection structure, includes transformer body and circuit board, electric connection between transformer body and the circuit board, the transformer body includes the iron core, the inner chamber of iron core is provided with the connecting seat, the wire winding module is installed to the inner wall of connecting seat, the lower surface of iron core passes through fixed block fixedly connected with pin, the cavity has been seted up to the lower extreme of pin, just the inside of cavity is provided with the joint mechanism of the quick assembly disassembly who uses with the circuit board cooperation, the surface of circuit board is provided with the spacing subassembly that is used for fixed pin with the corresponding position of pin lower extreme.

Preferably, the clamping mechanism comprises a positioning block, the positioning is inserted into a cavity formed by the pin, a positioning rod is fixedly connected to the inner wall of the cavity of the pin, a spring piece is movably connected to the corresponding position of the surface of the positioning rod, and two ends of the spring piece are fixedly connected with the inner end of the positioning block.

Preferably, the limiting component comprises a through hole, the through hole is formed in the surface of the circuit board, a clamping groove matched with the positioning block for use is formed in the bottom end of the inner cavity of the through hole, and the outer end of the positioning block is clamped in the inner cavity of the clamping groove.

Preferably, the lower ends of the pins and the outer ends of the positioning blocks are both arc-shaped, and the edge of the connecting seat is in arc chamfer arrangement.

Preferably, the outer wall of the iron core is wound with an insulating adhesive tape, and the surface of the insulating adhesive tape is adhered with a warning paste.

Preferably, gaskets are arranged at two ends of the fixed block, and the gaskets are attached to the surface of the circuit board.

Preferably, the position of the through hole corresponds to the position of the pin, and the connecting seat is in a U-shaped arrangement.

Preferably, the upper surface of the iron core is attached with copper foil, and radiating fins are arranged on the periphery of the surface of the copper foil.

Compared with the prior art, the utility model has the beneficial effects that:

The utility model provides a pin electric connection structure of a direct-current medium-voltage step-up transformer, which can provide limiting movement for a spring piece through the arrangement of a positioning rod in a clamping mechanism, so that the spring piece can drive a positioning block to stretch and retract on the pin and be matched with a through hole and a clamping groove which are arranged on a circuit board in a clamping way, thereby being capable of connecting the pin with the circuit board without using a welding way, being convenient for a worker to disassemble, assemble and maintain the transformer body and the circuit board, reducing the damage degree of the pin, and simultaneously relieving the difficulty of the worker in maintenance work. The pin and the positioning block are arranged in the arc shape, so that the pin and the through hole can be conveniently clamped and moved, the abrasion degree of the pin and the inner wall of the through hole is reduced, and the pin and the positioning block can be quickly clamped with the position of the clamping groove.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an exploded view of the transformer body and circuit board structure of the present utility model;

FIG. 3 is a schematic view of a circuit board structure of the present utility model in partial cross-section;

FIG. 4 is a schematic diagram of a partial side cross-sectional view of a pin structure of the present utility model;

Fig. 5 is a schematic top cross-sectional view of the pin and clip mechanism structure of the present utility model.

Reference numerals in the drawings: 1. a transformer body; 101. an iron core; 102. a connecting seat; 103. a winding module; 104. pins; 2. a circuit board; 3. a clamping mechanism; 31. a positioning block; 32. a positioning rod; 33. a spring piece; 4. a limit component; 41. a through hole; 42. a clamping groove; 5. an insulating tape; 6. a gasket; 7. copper foil; 8. a heat sink; 9. and a fixed block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a pin electric connection structure of a direct current medium voltage step-up transformer as shown in figures 1-5, which comprises a transformer body 1 and a circuit board 2, wherein the transformer body 1 is electrically connected with the circuit board 2.

The transformer body 1 includes iron core 101, and the inner chamber of iron core 101 is provided with connecting seat 102, and wire winding module 103 is installed to the inner wall of connecting seat 102, and the lower surface of iron core 101 passes through fixed block 9 fixedly connected with pin 104, and the cavity has been seted up to the lower extreme of pin 104, and the inside of cavity is provided with the quick assembly disassembly's that uses with circuit board 2 joint mechanism 3.

The surface of the circuit board 2 is provided with the spacing subassembly 4 that is used for fixing the pin 104 with the corresponding position of pin 104 lower extreme, and the position that the through-hole 41 offered corresponds with the position of pin 104, and the connecting seat 102 is the U-shaped setting, can be connected between pin 104 and the circuit board 2 through the joint mechanism 3 that sets up to make things convenient for the staff to dismantle.

The clamping mechanism 3 comprises a positioning block 31, the positioning plug is inserted into a cavity position formed by a pin 104, a positioning rod 32 is fixedly connected to the inner wall of the cavity of the pin 104, a spring piece 33 is movably connected to the corresponding position of the surface of the positioning rod 32, and two ends of the spring piece 33 are fixedly connected with the inner end of the positioning block 31.

The limiting component 4 comprises a through hole 41, the through hole 41 is formed in the surface of the circuit board 2, a clamping groove 42 matched with the positioning block 31 for use is formed in the bottom end of the inner cavity of the through hole 41, and the outer end of the positioning block 31 is clamped in the inner cavity of the clamping groove 42.

The locating rod 32 in the clamping mechanism 3 is arranged to provide a limiting movement effect on the spring piece 33, so that the spring piece 33 can drive the locating block 31 to stretch and retract on the pin 104, and is matched with the through hole 41 and the clamping groove 42 formed in the circuit board 2 in a clamping manner, so that the pin 104 and the circuit board 2 can be connected without using a welding manner, a worker can conveniently disassemble, assemble and maintain the transformer body 1 and the circuit board 2, the damage degree of the pin 104 is reduced, and the difficulty of the worker maintenance work is reduced.

The pin 104 and the positioning block 31 are arranged in the arc shape, so that the pin 104 and the through hole 41 can be conveniently clamped and moved, the abrasion degree of the inner wall of the through hole 41 is reduced, and the pin can be quickly clamped with the position of the clamping groove 42.

The lower ends of the pins 104 and the outer ends of the positioning blocks 31 are both arc-shaped, the edge of the connecting seat 102 is provided with arc-shaped chamfer angles, and the pins 104 and the positioning blocks 31 are arranged into arc-shaped shapes, so that clamping movement between the pins 104 and the through holes 41 can be facilitated, the abrasion degree of the inner walls of the through holes 41 is reduced, and the clamping connection with the positions of the clamping grooves 42 can be performed quickly.

The outer wall of the iron core 101 is wound with the insulating tape 5, the surface of the insulating tape 5 is adhered with the warning paste, and the insulating tape 5 has the characteristics of good insulation pressure resistance, flame retardance, weather resistance and the like, and can provide good insulation effect for the iron core 101.

The gasket 6 is arranged at the two ends of the fixed block 9, the gasket 6 is attached to the surface of the circuit board 2, a protection effect can be provided between the circuit board 2 and the fixed block 9, and friction between the fixed block 9 and the circuit board 2 is reduced.

The upper surface laminating of iron core 101 has copper foil 7, and copper foil 7 surface all is provided with fin 8 all around, can provide the radiating effect to the in-service iron core 101 through copper foil 7 and the fin 8 that set up for the heat on iron core 101 surface releases fast.

When the transformer is particularly used, the positioning rod 32 in the clamping mechanism 3 is arranged to provide a limiting movement function for the spring piece 33, when a worker inserts the pin 104 into the through hole 41, then the positioning block 31 can provide pressure for the spring piece 33, so that the positioning block 31 moves into a cavity formed by the pin 104 until the position of the clamping groove 42, then the spring piece 33 provides an elastic function, so that the positioning block 31 is elastically provided, the outer end of the positioning block 31 is clamped in the clamping groove 42, and when the worker separates the pin 104 from the clamping groove 42, the outer end of the positioning block 31 is arc-shaped, so that the worker can take the transformer body 1 upwards, the pin 104 and the clamping groove 42 can be quickly separated, and the electric connection relation between the pin 104 in the transformer body 1 and the circuit board 2 is realized, so that the worker can carry out later maintenance and can quickly disassemble and assemble the transformer.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a direct current medium voltage step-up transformer pin electricity connection structure, includes transformer body (1) and circuit board (2), its characterized in that: the transformer comprises a transformer body (1) and a circuit board (2), wherein the transformer body (1) comprises an iron core (101), a connecting seat (102) is arranged in an inner cavity of the iron core (101), a winding module (103) is arranged on the inner wall of the connecting seat (102), a pin (104) is fixedly connected to the lower surface of the iron core (101) through a fixing block (9), a cavity is formed in the lower end of the pin (104), a clamping mechanism (3) for quick assembly disassembly and use in cooperation with the circuit board (2) is arranged in the cavity, and a limiting component (4) for fixing the pin (104) is arranged on the surface of the circuit board (2) and at a position corresponding to the lower end of the pin (104).

2. The pin electrical connection structure of a dc medium voltage step-up transformer according to claim 1, wherein: the clamping mechanism (3) comprises a positioning block (31), the positioning is inserted into a cavity position formed by a pin (104), a positioning rod (32) is fixedly connected to the inner wall of the cavity of the pin (104), a spring piece (33) is movably connected to the corresponding position of the surface of the positioning rod (32), and two ends of the spring piece (33) are fixedly connected with the inner end of the positioning block (31).

3. The pin electrical connection structure of a dc medium voltage step-up transformer according to claim 2, wherein: the limiting component (4) comprises a through hole (41), the through hole (41) is formed in the surface of the circuit board (2), a clamping groove (42) matched with the positioning block (31) for use is formed in the bottom end of the inner cavity of the through hole (41), and the outer end of the positioning block (31) is clamped in the inner cavity of the clamping groove (42).

4. A pin electrical connection structure of a dc medium voltage step-up transformer according to claim 3, wherein: the lower ends of the pins (104) and the outer ends of the positioning blocks (31) are arc-shaped, and the edges of the connecting seats (102) are arranged in an arc chamfer mode.

5. The pin electrical connection structure of a dc medium voltage step-up transformer according to claim 1, wherein: the outer wall of the iron core (101) is wound with an insulating adhesive tape (5), and a warning label is adhered to the surface of the insulating adhesive tape (5).

6. The direct current medium voltage step-up transformer pin electrical connection structure of claim 5, wherein: two ends of the fixed block (9) are provided with gaskets (6), and the gaskets (6) are attached to the surface of the circuit board (2).

7. A pin electrical connection structure of a dc medium voltage step-up transformer according to claim 3, wherein: the positions of the through holes (41) are corresponding to the positions of the pins (104), and the connecting seats (102) are arranged in a U shape.

8. The pin electrical connection structure of a dc medium voltage step-up transformer according to claim 1, wherein: copper foil (7) is attached to the upper surface of the iron core (101), and radiating fins (8) are arranged on the periphery of the surface of the copper foil (7).