CN215770772U

CN215770772U - Low-voltage large-current transformer

Info

Publication number: CN215770772U
Application number: CN202121923245.3U
Authority: CN
Inventors: 冯新友; 吴龙威
Original assignee: Changzhou Wenna Electric Appliance Co ltd
Current assignee: Changzhou Wenna Electric Appliance Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-02-08
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses a low-voltage high-current transformer, which has the technical scheme that: the cable connector comprises a shell, wherein an instrument groove is formed in one side of the shell, and a plurality of wiring holes are formed in the top surface of the shell; the protective cover is arranged on one side of the inner part of the instrument groove; the insulation plate is arranged on the inner bottom surface of the instrument groove, a first fixed block is fixedly arranged on the top surface of the insulation plate, and a second fixed block is arranged on the top surface of the first fixed block; the initial coil is sleeved at the left position of the first fixed block, and a secondary coil is sleeved at the right position of the first fixed block; the copper bar is arranged on the top surface of the second fixed block; the replacement assembly is arranged on the bottom surface of the insulating plate and used for replacing the initial coil and the secondary coil, the second fixing block is taken by a worker through tools, and the worker can conveniently take down the initial coil and replace the secondary coil.

Description

Low-voltage large-current transformer

Technical Field

The utility model relates to the technical field of transformers, in particular to a low-voltage high-current transformer.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and has the main functions of: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), and the like. According to the application, the method can be divided into: power transformers and special transformers (furnace transformers, rectification transformers, power frequency test transformers, voltage regulators, mining transformers, audio transformers, intermediate frequency transformers, high frequency transformers, impact transformers, instrument transformers, electronic transformers, reactors, mutual inductors, etc.).

For example, chinese patent publication No. CN208335958U proposes a low-voltage high-current transformer, in which a copper bar is pre-assembled on a base in advance, and only an input coil needs to be wound on a core column, and secondary winding is not needed, so that the transformer is convenient to process; in addition, through setting up the air gap for the air current between second copper and the third copper can flow into in the cavity, dispels the heat to the stem in the cavity, but in this scheme, it is loaded down with trivial details to need to change the coil, for this reason we have proposed low-voltage heavy current transformer.

SUMMERY OF THE UTILITY MODEL

In view of the problems mentioned in the background, it is an object of the present invention to provide a low voltage high current transformer to solve the problems mentioned in the background.

The technical purpose of the utility model is realized by the following technical scheme:

a low voltage high current transformer comprising: the cable connector comprises a shell, a plurality of connecting wires and a plurality of connecting wires, wherein one side of the shell is provided with an instrument slot, and the top surface of the shell is provided with a plurality of connecting wire holes; the protective cover is arranged on one side of the inner part of the instrument groove; the insulation plate is arranged on the inner bottom surface of the instrument groove, a first fixed block is fixedly arranged on the top surface of the insulation plate, and a second fixed block is arranged on the top surface of the first fixed block; the initial coil is sleeved at the left position of the first fixed block, and a secondary coil is sleeved at the right position of the first fixed block; the copper bar is arranged on the top surface of the second fixed block; and the replacing assembly is arranged on the bottom surface of the insulating plate and used for replacing the initial coil and the secondary coil.

Through adopting above-mentioned technical scheme, through setting up the wiring hole, the inside of shell is put into through the wiring hole that passes through the alternating current interface to the staff, through insert the alternating current on initial coil and secondary coil, the different electric current that changes the alternating current of coil turns on initial coil and the secondary coil, in the work of carrying out the heavy current for a long time, can cause the damage to initial coil and secondary coil, need change and maintain initial coil and secondary coil, guarantee the normal operating of transformer, change the subassembly through setting up, make things convenient for the staff to change initial coil and secondary coil, promote the convenience.

Preferably, the replacement assembly comprises: the two fixture blocks are fixedly arranged on the bottom surface of the insulating plate; the two clamping grooves are formed in the inner bottom surface of the instrument groove, and the positions of the clamping grooves correspond to the positions of the clamping blocks; the two connecting holes are formed in the top surface of the first fixing block, the bottom surface of the second fixing block is fixedly provided with two fixing columns, and the positions of the fixing columns correspond to the positions of the connecting holes.

Through adopting above-mentioned technical scheme, through setting up the fixed column, the outer wall cover of fixed column is equipped with the rubber sleeve, establish through the rubber sleeve and connecting hole cover and increase frictional force together, make the more firm top surface of connecting at first fixed block of second fixed block, through setting up the fixture block, when initial coil and secondary coil need to be changed, through pulling the insulation board, establish through fixture block and draw-in groove movable sleeve this moment and make the insulation board shift out from the inside in instrument groove, take the second fixed block through staff's use tools, make the second fixed block take off from the top surface of first fixed block, make things convenient for the staff to take off initial coil and secondary coil and change.

Preferably, a protection mechanism is disposed on a top surface of the housing for protecting the primary coil and the secondary coil.

Through adopting above-mentioned technical scheme, through setting up protection machanism, when the shell is hit to the external current accident, guide rational processing external current through protection component to the electric current, avoid initial coil and secondary coil to be punctured, promote life.

Preferably, the guard mechanism includes: the mounting hole is formed in the top surface of the shell, and an electric conduction column is fixedly sleeved in the mounting hole; the round hole is seted up the right side position of shell, the fixed cover of interior circle wall in round hole is equipped with the ground connection pipe, the inside of ground connection pipe is provided with the ground wire.

Through adopting above-mentioned technical scheme, through setting up the drainage post, guide external current through the drainage post, drainage post and ground wire electric connection, through setting up the earthing tube, insert the earthing tube in ground through the staff, discharge the shell internal current through the ground wire, guarantee the normal operating of transformer.

Preferably, a plurality of ventilation holes are formed in the positions of the left side and the right side of the shell, and dust screens are arranged inside the ventilation holes.

Through adopting above-mentioned technical scheme, through setting up the ventilation hole, at work, the inside instrument of shell is for producing a large amount of heats, gets into the inside of shell to external gas through the ventilation hole to cool down the inside of shell, avoid the dust to enter into the inside of shell through the dust screen, influence initial coil and secondary coil's use, promote the practicality.

Preferably, a temperature monitor is fixedly mounted on one side of the shell.

Through adopting above-mentioned technical scheme, through setting up temperature monitor, carry out real-time supervision to the inside temperature of shell, the staff's of being convenient for real-time supervision inside the shell temperature when the temperature appears unusually, in time closes, promotes the security.

In summary, the utility model mainly has the following beneficial effects:

through setting the wiring hole, a worker puts the wiring hole through which the alternating current interface passes into the shell, the alternating current is connected onto the primary coil and the secondary coil, the current of the alternating current is changed through the different numbers of turns of the coils on the primary coil and the secondary coil, the primary coil and the secondary coil are damaged in the long-time heavy current work, the primary coil and the secondary coil need to be replaced and maintained, the normal operation of the transformer is ensured, through setting the fixing column, the outer wall surface of the fixing column is sleeved with the rubber sleeve, the friction force is increased through the rubber sleeve and the connecting hole sleeve, the second fixing block is more firmly connected to the top surface of the first fixing block, through setting the clamping block, when the primary coil and the secondary coil need to be replaced, through pulling the insulating plate, at the moment, the insulating plate is moved out from the inside of the instrument groove through setting the clamping block and the clamping groove movable sleeve, the second fixed block is taken by a worker through tools, so that the second fixed block is taken down from the top surface of the first fixed block, and the initial coil and the secondary coil are conveniently taken down by the worker to be replaced.

Through setting up the electricity-leading post, guide external current through the electricity-leading post, electricity-leading post and ground wire electric connection, through setting up the earthing tube, insert the earthing tube in ground through the staff, discharge shell internal current through the ground wire, guarantee the normal operating of transformer, through setting up the ventilation hole, in operation, the inside instrument of shell is for producing a large amount of heats, the inside of external gas entering shell through the ventilation hole, thereby cool down to the inside of shell, avoid the inside that the dust enters into the shell through the dust screen, influence the use of initial coil and secondary coil, promote the practicality.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic illustration of a disassembled structure of the housing of the present invention;

fig. 3 is a schematic view of a first fixing block splitting structure according to the present invention.

Reference numerals: 1. a housing; 2. an instrument groove; 3. a wiring hole; 4. a protective cover; 5. a card slot; 6. an insulating plate; 7. a first fixed block; 8. an initial coil; 9. a secondary coil; 10. a second fixed block; 11. copper bars; 12. a clamping block; 13. connecting holes; 14. fixing a column; 15. mounting holes; 16. a charging post; 17. arranging holes; 18. a ground pipe; 19. a vent hole; 20. a temperature monitor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, 2 and 3, the low-voltage large-current transformer includes a housing 1, an instrument slot 2 is formed in one side of the housing 1, a plurality of wiring holes 3 are formed in a top surface of the housing 1, a protective cover 4 is arranged on one side inside the instrument slot 2, a hinge is fixedly mounted on one side of the instrument slot 2, the protective cover 4 is rotatably connected through the hinge, an insulating plate 6 is arranged on an inner bottom surface of the instrument slot 2, a first fixing block 7 is fixedly mounted on a top surface of the insulating plate 6, a second fixing block 10 is arranged on a top surface of the first fixing block 7, an initial coil 8 is movably sleeved on a left side position of the first fixing block 7, a secondary coil 9 is sleeved on a right side position of the first fixing block 7, a copper bar 11 is arranged on a top surface of the second fixing block 10, a replacing component is arranged on a bottom surface of the insulating plate 6 and used for replacing the initial coil 8 and the secondary coil 9, the replacing component includes two clamping blocks 12, the two clamping blocks 12 are fixedly arranged on the bottom surface of the insulating plate 6, two clamping grooves 5 are formed in the inner bottom surface of the instrument groove 2, the positions of the clamping grooves 5 correspond to the positions of the clamping blocks 12, two connecting holes 13 are formed in the top surface of the first fixing block 7 respectively, two fixing columns 14 are fixedly arranged on the bottom surface of the second fixing block 10, the positions of the fixing columns 14 correspond to the positions of the connecting holes 13, rubber sleeves are sleeved on the outer wall surfaces of the fixing columns 14 through the rubber sleeves, friction force is increased through the rubber sleeves and the connecting holes 13, the second fixing block 10 is connected to the top surface of the first fixing block 7 more firmly, through the arrangement of the clamping blocks 12, when the initial coil 8 and the secondary coil 9 need to be replaced, the insulating plate 6 is pulled, at the moment, the insulating plate 6 is moved out of the instrument groove 2 through the movable sleeves of the clamping blocks 12 and the clamping grooves 5, and a worker takes the second fixing block 10 through a tool, the second fixing block 10 is taken down from the top surface of the first fixing block 7, and the initial coil 8 and the secondary coil 9 are convenient to take down for replacement by workers.

Referring to fig. 1 and 3, the protection mechanism is disposed on the top surface of the housing 1 for protecting the primary coil 8 and the secondary coil 9, the protection mechanism includes a mounting hole 15, the mounting hole 15 is disposed on the top surface of the housing 1, an electrical lead post 16 is fixedly disposed inside the mounting hole 15, a row hole 17 is disposed at the right side of the housing 1, a ground pipe 18 is fixedly disposed on the inner circular wall of the row hole 17, a ground wire is disposed inside the ground pipe 18, a plurality of ventilation holes 19 are disposed at the left and right sides of the housing 1, a dust screen is disposed inside the ventilation holes 19, by disposing the ventilation holes 19, during operation, an instrument inside the housing 1 generates a large amount of heat, and external gas enters the housing 1 through the ventilation holes 19, thereby cooling the inside of the housing 1, and dust is prevented from entering the housing 1 through the dust screen, which affects the use of the primary coil 8 and the secondary coil 9, promote the practicality, one side fixed mounting of shell 1 has temperature monitor 20, through setting up temperature monitor 20, carries out real-time supervision to the inside temperature of shell 1, and the staff real-time supervision of being convenient for shell 1 inside temperature appears when unusual when the temperature, in time closes, promotes the security.

The working principle is as follows: referring to fig. 1, 2 and 3, when in use, by arranging the fixing column 14, the outer wall surface of the fixing column 14 is sleeved with a rubber sleeve, the rubber sleeve and the connecting hole 13 are sleeved together to increase friction force, so that the second fixing block 10 is more firmly connected to the top surface of the first fixing block 7, by arranging the fixture block 12, when the primary coil 8 and the secondary coil 9 need to be replaced, by pulling the insulating plate 6, at this time, the insulating plate 6 is moved out from the inside of the instrument slot 2 by movably sleeving the fixture block 12 and the clamping slot 5, by using a tool by a worker to take the second fixing block 10, the second fixing block 10 is taken down from the top surface of the first fixing block 7, so that the worker can conveniently take down the primary coil 8 and the secondary coil 9 for replacement, by arranging the electricity leading column 16, external current is guided by the electricity leading column 16, the electricity leading column 16 is electrically connected with the ground wire, by arranging the grounding tube 18, insert ground pipe 18 in the ground through the staff, discharge shell 1 internal current through the ground wire, guarantee the normal operating of transformer, through setting up ventilation hole 19, in operation, shell 1 internal instrument is for producing a large amount of heats, get into shell 1's inside to external gas through ventilation hole 19, thereby cool down shell 1's inside, avoid the inside that the dust enters into shell 1 through the dust screen, influence initial coil 8 and secondary coil 9's use, promote the practicality, through setting up temperature monitor 20, carry out real-time supervision to shell 1 internal temperature, be convenient for staff real-time supervision shell 1 inside temperature, appear when unusual when the temperature, in time close, promote the security.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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. A low-voltage high-current transformer, comprising:

the device comprises a shell (1), wherein an instrument groove (2) is formed in one side of the shell (1), and a plurality of wiring holes (3) are formed in the top surface of the shell (1);

the protective cover (4), the protective cover (4) is arranged on one side of the inside of the meter groove (2);

the insulation plate (6) is arranged on the inner bottom surface of the meter groove (2), a first fixing block (7) is fixedly mounted on the top surface of the insulation plate (6), and a second fixing block (10) is arranged on the top surface of the first fixing block (7);

the initial coil (8) is sleeved at the left position of the first fixed block (7), and the secondary coil (9) is sleeved at the right position of the first fixed block (7);

the copper bar (11), the copper bar (11) is arranged on the top surface of the second fixed block (10);

and the replacing assembly is arranged on the bottom surface of the insulating plate (6) and is used for replacing the initial coil (8) and the secondary coil (9).

2. A low voltage high current transformer according to claim 1, wherein said replacement assembly comprises:

the two fixture blocks (12) are fixedly arranged on the bottom surface of the insulating plate (6);

the two clamping grooves (5) are formed in the inner bottom surface of the instrument groove (2), and the positions of the clamping grooves (5) correspond to the positions of the clamping blocks (12);

the two connecting holes (13) are formed in the top surface of the first fixing block (7), the bottom surface of the second fixing block (10) is fixedly provided with two fixing columns (14), and the positions of the fixing columns (14) correspond to the positions of the connecting holes (13).

3. A low voltage high current transformer according to claim 1, wherein: and the top surface of the shell (1) is provided with a protection mechanism for protecting the primary coil (8) and the secondary coil (9).

4. A low voltage high current transformer according to claim 3, wherein said shielding mechanism comprises:

the mounting hole (15) is formed in the top surface of the shell (1), and a power-on column (16) is fixedly sleeved in the mounting hole (15);

arranging hole (17), arrange hole (17) and set up the right side position of shell (1), the fixed cover of interior circle wall in arranging hole (17) is equipped with ground connection pipe (18), the inside of ground connection pipe (18) is provided with the ground wire.

5. A low voltage high current transformer according to claim 1, wherein: a plurality of ventilation holes (19) are formed in the positions of the left side and the right side of the shell (1), and dust screens are arranged inside the ventilation holes (19).

6. A low voltage high current transformer according to claim 1, wherein: and a temperature monitor (20) is fixedly arranged on one side of the shell (1).