CN216749523U

CN216749523U - Low-loss epoxy resin casting dry-type transformer

Info

Publication number: CN216749523U
Application number: CN202123364436.3U
Authority: CN
Inventors: 孙伟
Original assignee: Jiangsu Xinsaier Electric Co ltd
Current assignee: Jiangsu Xinsaier Electric Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-06-14
Anticipated expiration: 2031-12-28

Abstract

The utility model relates to the technical field of dry-type transformers, in particular to a low-loss epoxy resin cast dry-type transformer, which comprises a transformer box, wherein the side wall of the transformer box is symmetrically provided with sliding grooves, the inner walls of two groups of sliding grooves are respectively provided with a column groove, the side wall of the transformer box is symmetrically provided with a circular groove, the inner parts of the two circular grooves are respectively and rotatably connected with a fan, heat dissipation ports are respectively arranged below the two circular grooves, two groups of heat dissipation ports are respectively arranged on the side wall of the transformer box, sliding blocks are respectively and movably arranged in the two groups of sliding grooves, the side walls of the two groups of sliding blocks are respectively and fixedly provided with a shielding plate, the side walls of the two groups of sliding blocks are respectively provided with an inner groove, the inner parts of the two groups of inner grooves are respectively and fixedly provided with a clamping mechanism, the two central blocks are respectively and fixedly arranged in the two groups of inner grooves, when elastic pieces slide to the inner parts of the column grooves, the elastic pieces can be partially inserted into the column grooves by the elastic pieces due to the elastic force recovered by a spring, at the moment, the circular grooves and the heat dissipation ports are exposed outside, the heat dissipation dustproof device is used for heat dissipation, so that the heat dissipation dustproof effect of the device is better when the device is used.

Description

Low-loss epoxy resin casting dry-type transformer

Technical Field

The application relates to the technical field of dry-type transformers, in particular to a low-loss epoxy resin cast dry-type transformer.

Background

The dry type transformer is widely used in places such as local lighting, high-rise buildings, airports, wharf CNC mechanical equipment and the like, and simply, the dry type transformer refers to a transformer with an iron core and a winding which are not immersed in insulating oil, the cooling mode is divided into natural air cooling and forced air cooling, the transformer can continuously operate for a long time under the rated capacity during natural air cooling, the output capacity of the transformer can be improved by 50% during forced air cooling, and the dry type transformer is suitable for intermittent overload operation or emergency accident overload operation, and the dry type transformer is in a non-economic operation state due to large load loss and impedance voltage amplification during overload, so that the dry type transformer cannot be in long-time continuous overload operation.

As disclosed in the chinese patent: dry-type transformer, publication No.: CN208045241U, it is through adopting the arm-tie fixing bolt, easy to assemble and stability is strong, the secondary does not need to carry on the extra processing, and set up the reinforcing plate that is the same long straight board between arm-tie and upper, lower clamp, the upper trompil set up on the reinforcing plate is used for installing the arm-tie fixing bolt and realizing, realize the rigid connection between clamp, arm-tie and reinforcing plate, in addition set up the lower trompil on the reinforcing plate, used for installing the arm-tie axle, the arm-tie axle plays the fast positioning while installing, the effect of convenient installation, set up in the lower trompil in the arm-tie axle, the internal diameter is greater than the internal diameter of the lower trompil, the problem of difficult producing the slip bore while installing the arm-tie axle fixing bolt, through the arm-tie axle fixing bolt has further realized the stability of connecting between arm-tie, clamp and reinforcing plate, but with the increase of load and rise of the ambient temperature in the transformer shell, make the transformer temperature rise accordingly, thereby easily influencing the safe operation and being difficult to ensure the normal operation of the transformer.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a low-loss epoxy resin cast dry-type transformer, which solves the above problems.

The embodiment of the application adopts the following technical scheme: a low-loss epoxy resin cast dry-type transformer comprises a transformer box, wherein sliding grooves are symmetrically formed in the side walls of the transformer box, column grooves are formed in the inner walls of the two groups of sliding grooves, circular grooves are symmetrically formed in the side walls of the transformer box, fans are rotatably connected inside the two circular grooves, heat dissipation ports are formed below the two circular grooves, the two groups of heat dissipation ports are formed in the side walls of the transformer box, sliding blocks are movably mounted inside the two groups of sliding grooves, shielding plates are fixedly mounted on the side walls of the two groups of sliding blocks, and inner grooves are formed in the side walls of the two groups of sliding blocks;

clamping mechanisms are fixedly arranged in the two groups of inner grooves;

and a fixing mechanism is movably arranged in the transformer box.

The clamping mechanism comprises center blocks, the center blocks are fixedly arranged in the two groups of inner grooves, springs are fixedly arranged at two end portions of each center block, and elastic pieces are fixedly arranged at one ends, far away from the center blocks, of the springs.

The fixing mechanism comprises a dry-type transformer, the dry-type transformer is installed inside a transformer box, a bottom plate is fixedly installed at the lower end of the dry-type transformer, strip-shaped grooves are symmetrically formed in the upper end of the bottom plate, clamping grooves are formed in the strip-shaped grooves, a movable plate is symmetrically and movably installed inside the transformer box, two groups of side plates are fixedly installed on the side walls of the movable plate, clamping strips are fixedly installed on the opposite ends of the movable plate, and rod grooves are formed in the side walls of the side plates.

Preferably, the fixed plates are symmetrically and fixedly arranged on the side walls of the transformer box, screw rods are arranged in internal threads of the fixed plates, the limiting plates are symmetrically and fixedly sleeved on the surfaces of the screw rods, and the side plates are movably arranged between the two limiting plates.

Preferably, the side wall of the transformer box is symmetrically provided with moving grooves, and the two groups of moving plates are movably arranged in the moving grooves.

Preferably, a thread groove matched with the screw is formed in the side wall of the fixing plate, and the screw thread is arranged in the thread groove.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

firstly, through the design of the heat dissipation port, the sliding block, the shielding plate and the elastic sheet, when the equipment is stopped, the shielding plate can be placed at the lowest end to shield the circular groove and the heat dissipation port, external dust is placed in the pressure change box, when the equipment is started, the shielding plate can be pushed upwards, the sliding block fixed with the shielding plate is driven to move upwards along with the shielding plate under the movement of the shielding plate, the central block, the spring and the elastic sheet in the inner groove are driven to move along with the sliding block, when the elastic sheet slides into the column groove, the spring recovers the elastic force to eject one part of the elastic sheet into the column groove, and at the moment, the circular groove and the heat dissipation port are exposed outside for heat dissipation, so that the heat dissipation and dust prevention effects of the equipment are better when the equipment is used;

and secondly, through the bar groove, the design of movable plate and card strip, when the movable plate drives the card strip fixed with it and takes place to remove to the middle part, drive under the removal of card strip and slide into bar inslot portion, take place progressively deformation under bar inslot portion continuously slides, accomplish the joint when sliding into the draw-in groove inside, make this equipment can effectively fix dry-type transformer when using, and only need break the movable plate relatively when needs are dismantled and can accomplish the separation, make the equipment more convenient with the dismantlement, it is laborsaving.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

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

FIG. 2 is a schematic view of the connection structure of the transformer box of the present invention;

FIG. 3 is a schematic view of the moving plate connection explosion structure of the present invention;

FIG. 4 is a schematic view of a bottom plate attachment explosion configuration of the present invention;

fig. 5 is a schematic view of the structure of the shielding plate connecting explosion according to the present invention.

In the figure: 11. a transformer tank; 12. a chute; 13. a column groove; 14. a circular groove; 15. a fan; 16. a heat dissipation port; 17. a slider; 18. a shielding plate; 19. an inner tank; 21. a center block; 22. a spring; 23. a spring plate; 31. a dry-type transformer; 32. a base plate; 33. a strip-shaped groove; 34. a card slot; 35. moving the plate; 36. a side plate; 37. clamping the strip; 38. a rod groove; 41. a fixing plate; 42. a screw; 43. a limiting disc.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all 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 application.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Referring to fig. 1, 2, 3, 4 and 5, a low-loss epoxy resin cast dry-type transformer includes a transformer box 11, sliding grooves 12 are symmetrically formed in the side walls of the transformer box 11, column grooves 13 are formed in the inner walls of the two groups of sliding grooves 12, circular grooves 14 are symmetrically formed in the side walls of the transformer box 11, fans 15 are rotatably connected to the insides of the two circular grooves 14, heat dissipation ports 16 are formed below the two circular grooves 14, the two groups of heat dissipation ports 16 are formed in the side walls of the transformer box 11, sliders 17 are movably mounted in the two groups of sliding grooves 12, shielding plates 18 are fixedly mounted on the side walls of the two groups of sliders 17, and inner grooves 19 are formed in the side walls of the two groups of sliders 17;

clamping mechanisms are fixedly arranged in the two groups of inner grooves 19;

the inside movable mounting of transformer case 11 has fixed establishment.

The clamping mechanism comprises a central block 21, the two central blocks 21 are fixedly mounted in the two groups of inner grooves 19, springs 22 are fixedly mounted at two end portions of the two central blocks 21, and elastic pieces 23 are fixedly mounted at one ends, far away from the central blocks 21, of the two groups of springs 22.

The fixing mechanism comprises a dry-type transformer 31, the dry-type transformer 31 is arranged in a transformer box 11, a bottom plate 32 is fixedly arranged at the lower end of the dry-type transformer 31, strip-shaped grooves 33 are symmetrically arranged at the upper end of the bottom plate 32, clamping grooves 34 are respectively arranged in the two strip-shaped grooves 33, moving plates 35 are symmetrically and movably arranged in the transformer box 11, moving grooves are symmetrically arranged on the side walls of the transformer box 11, two groups of moving plates 35 are movably arranged in the moving grooves, side plates 36 are respectively and fixedly arranged on the side walls of the two groups of moving plates 35, clamping strips 37 are respectively and fixedly arranged at the opposite ends of the two groups of moving plates 35, rod grooves 38 are respectively arranged on the side walls of the two side plates 36, fixing plates 41 are symmetrically and fixedly arranged on the side walls of the transformer box 11, screw rods 42 are arranged in internal threads of the fixing plates 41, thread grooves matched with the screw rods 42 are arranged on the side walls of the fixing plates 41, limiting discs 43 are symmetrically and fixedly arranged on the surfaces of the screw rods 42, the side plate 36 is movably mounted between two limiting discs 43.

The working principle is as follows:

the first step, the dry-type transformer 31 can be placed inside the transformer box 11 during use, the screw rod 42 can be synchronously rotated in the threaded groove at the moment, the strip-shaped groove 33 fixed with the screw rod 42 is driven to rotate along with the screw rod 42 and move towards the middle part under the rotation and movement towards the middle part, the side plate 36 and the moving plate 35 are extruded by the strip-shaped groove 33 and move towards the middle part at the moment, the moving plate 35 drives the clamping strip 37 fixed with the moving plate to move towards the middle part at the moment, the clamping strip 37 is driven to slide into the strip-shaped groove 33 under the movement of the clamping strip 37, the strip-shaped groove 33 continuously slides and gradually deforms, and clamping is completed when the clamping strip slides into the clamping groove 34, so that the dry-type transformer 31 can be effectively fixed during use, and the dry-type transformer 31 can be separated only by relatively moving the moving plate 35 when the dry-type transformer needs to be disassembled, and the assembly and the disassembly are more convenient and labor-saving;

secondly, when the device is stopped, the shielding plate 18 can be placed at the lowest end to shield the circular groove 14 and the heat dissipation port 16, external dust is placed to fall into the transformer box 11, when the device is started, the shielding plate 18 can be pushed upwards at the moment, the shielding plate 18 is moved to drive the sliding block 17 fixed with the shielding plate to move upwards, the sliding block 17 is moved to drive the central block 21, the spring 22 and the elastic sheet 23 in the inner groove 19 to move upwards, when the elastic sheet 23 slides into the column groove 13, the spring 22 restores elasticity to enable a part of the elastic sheet 23 to be ejected into the column groove 13, and at the moment, the circular groove 14 and the heat dissipation port 16 are exposed for heat dissipation, so that the heat dissipation and dust prevention effects of the device in use are better.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. The utility model provides a low-loss epoxy resin pouring dry-type transformer, includes transformer case (11), spout (12) have been seted up to transformer case (11) lateral wall symmetry, its characterized in that: column grooves (13) are formed in the inner walls of the two groups of sliding grooves (12), circular grooves (14) are symmetrically formed in the side walls of the pressure changing box (11), fans (15) are rotatably connected to the insides of the two circular grooves (14), heat dissipation ports (16) are formed below the two circular grooves (14), the two groups of heat dissipation ports (16) are formed in the side walls of the pressure changing box (11), sliding blocks (17) are movably mounted in the two groups of sliding grooves (12), shielding plates (18) are fixedly mounted on the side walls of the two groups of sliding blocks (17), and inner grooves (19) are formed in the side walls of the two groups of sliding blocks (17);

clamping mechanisms are fixedly arranged in the two groups of inner grooves (19);

a fixing mechanism is movably arranged in the transformer box (11).

2. The low loss epoxy cast dry transformer of claim 1, wherein: the clamping mechanism comprises center blocks (21), the two center blocks (21) are fixedly mounted in the two groups of inner grooves (19), springs (22) are fixedly mounted at the two end portions of the center blocks (21), and elastic pieces (23) are fixedly mounted at one ends, far away from the center blocks (21), of the springs (22).

3. The low loss epoxy cast dry transformer of claim 1, wherein: the fixing mechanism comprises a dry-type transformer (31), the dry-type transformer (31) is installed inside a transformer box (11), a bottom plate (32) is fixedly installed at the lower end of the dry-type transformer (31), a strip-shaped groove (33) is symmetrically formed in the upper end of the bottom plate (32), two clamping grooves (34) are formed in the strip-shaped groove (33), a movable plate (35) is movably installed inside the transformer box (11) in a symmetrical mode, two groups of side plates (36) are fixedly installed on the side wall of the movable plate (35), two groups of clamping strips (37) are fixedly installed on the opposite end of the movable plate (35), and two rod grooves (38) are formed in the side wall of the side plate (36).

4. A low loss epoxy resin cast dry transformer according to claim 3, wherein: the fixed plate (41) is symmetrically and fixedly installed on the side wall of the transformer box (11), a screw rod (42) is arranged in the internal thread of the fixed plate (41), the limiting plates (43) are symmetrically and fixedly sleeved on the surface of the screw rod (42), and the side plate (36) is movably installed between the two limiting plates (43).

5. A low loss epoxy resin cast dry transformer according to claim 3, wherein: the side wall of the transformer box (11) is symmetrically provided with moving grooves, and the two groups of moving plates (35) are movably arranged in the moving grooves.

6. The low loss epoxy cast dry transformer of claim 4, wherein: the side wall of the fixing plate (41) is provided with a thread groove matched with the screw rod (42), and the screw rod (42) is arranged in the thread groove in a threaded manner.