CN214203398U

CN214203398U - Leakage protection device for three-phase dry-type transformer

Info

Publication number: CN214203398U
Application number: CN202120287441.XU
Authority: CN
Inventors: 周鎏锴; 钱鸣; 徐虹; 邵伟东; 李寅; 王晓燕; 徐煦; 李俊妮; 支旦
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-09-14
Anticipated expiration: 2031-02-01

Abstract

The utility model discloses a three-phase dry-type transformer earth-leakage protection device, including the electronic box, the baffle is all installed at the top at electronic box both ends, and the top cap is installed at the top of electronic box, and the entrance hole has been seted up to the bottom of electronic box one end, and damping device is installed to the bottom of electronic box. The utility model discloses, through the filter screen, the cooperation of fan and baffle is used, can drive the inside air flow of electronic box, make inside steam distribute away through the inside through-hole of electronic box, can adsorb the moisture through the drying plate, through the telescopic link, a pedestal, the second dead lever, the cooperation of second transfer line and gag lever post is used, can carry out the centre gripping to transformer body and fix, make things convenient for staff's installation and later stage to dismantle, through the connecting block, the cooperation of catch bar and sliding block is used, through the lubricating oil frictional force of sliding block between to solid fixed cylinder and inner tube cavity, through the compression of first transfer line to first spring, can make the bottom plate receive buffering and shock attenuation when rocking.

Description

Leakage protection device for three-phase dry-type transformer

Technical Field

The utility model relates to a three-phase dry-type transformer technical field specifically is a three-phase dry-type transformer earth leakage protection device.

Background

The three-phase dry transformer is a main component of various power supplies and electric equipment, is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and mainly comprises a primary coil, a secondary coil and an iron core, and is commonly used for voltage lifting, impedance matching, safety isolation and the like in electric equipment and wireless circuits.

Leakage protection device commonly used all adopts earth-leakage protector, also called leakage switch, overload and short-circuit protection function have, leakage protection device commonly used can only protect the transformer, when meetting the inside moisture of electronic box great, leakage protection device internals wets easily and produces the trouble, current transformer adopts single screw installation mostly in the installation, the electronic box produces easily at the in-process that removes and rocks, cause the inside transformer of electronic box to produce and collide with, thereby the life of transformer has been reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a three-phase dry-type transformer earth-leakage protection device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a three-phase dry-type transformer leakage protection device comprises an electric box, wherein baffle plates are respectively arranged at the tops of two ends of the electric box, a top cover is arranged at the top of the electric box, a wire inlet hole is formed in the bottom of one end of the electric box, a damping device is arranged at the bottom of the electric box, first fixing rods are respectively arranged at two ends of the bottom end in the damping device, a first transmission rod is hinged to the top of the first fixing rod, a bottom plate is hinged to one end, away from the hinge joint of the first fixing rod, of the first transmission rod, a first spring is arranged at two ends of the bottom end in the damping device, a fixed cylinder is respectively arranged at two ends, away from the first fixing rod, of the bottom end in the damping device, an inner cylinder is arranged at the center of the top of the fixed cylinder, a sliding block is slidably arranged in the inner cylinder, a push rod is arranged at the center of the top of the sliding block, and a connecting block is arranged at the top end of the push rod, the utility model discloses a drying device, including connecting block, top cap, telescopic link, filter mantle, clamping device, base, transformer body, second dead lever, second transfer line, the second spring is all installed at the both ends of connecting block bottom, the central point of top cap bottom puts and installs the drying plate, the filter mantle is all installed at the both ends on the inside top of electronic box, the filter mantle internally mounted has the fan, bottom plate top central point puts and installs clamping device, the central point of the inside bottom of clamping device puts and installs the telescopic link, the base is installed on the top of telescopic link, the top of base is provided with transformer body, and the second dead lever is all installed at the both ends of the inside bottom of electronic box.

Preferably, the top of the first spring is connected with the outer surface of the first transmission rod, through holes corresponding to the bottom plate in position and matched with the bottom of the electric box in size are formed in the top of the damping device and the bottom of the electric box, and two ends of the bottom plate are connected with the top of the connecting block respectively.

Preferably, the top of the clamping device is provided with a through hole matched with the second transmission rod in the maximum distance size, and two ends of one side of the base are respectively hinged with one end, away from the hinge point of the second transmission rod, of the limiting rod.

Preferably, the top of the fixed cylinder is provided with a through hole corresponding to the position of the inner cylinder and matched with the inner cylinder in size, the top end of the inner cylinder penetrates through the through hole in the top of the fixed cylinder and extends to the outside of the fixed cylinder, and the bottom end of the second spring is respectively connected with two ends of the top of the inner cylinder.

Preferably, a through hole which corresponds to the push rod in position and is matched with the push rod in size is formed in the inner barrel, and the top end of the push rod penetrates through the through hole in the inner barrel and extends to the top of the inner barrel.

Preferably, the number of the baffles is a plurality of, the installation angles of the baffles and the electric box are inclined at a certain degree, through holes are formed in the two ends of the electric box and below the baffles, the through holes are located at the positions below the through holes, and through holes communicated with the drying plate are formed in the center of the top of the electric box and the bottom of the top cover.

Compared with the prior art, the utility model provides a three-phase dry-type transformer earth-leakage protection device possesses following beneficial effect: through the filter screen in the utility model, the cooperation of fan and baffle is used, can drive the inside air flow of electronic box, make inside steam distribute away through the inside through-hole of electronic box, can adsorb the moisture through the drying plate, through the telescopic link, a pedestal, the second dead lever, the cooperation of second transfer line and gag lever post is used, can carry out the centre gripping to transformer body fixed, make things convenient for staff's installation and later stage to dismantle, through the connecting block, the cooperation of catch bar and sliding block is used, through the lubricating oil frictional force of sliding block between to solid fixed cylinder and inner tube cavity, through the compression of first transfer line to first spring, can make the bottom plate receive buffering and shock attenuation when rocking.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic view of the internal mechanism of the clamping device of the present invention;

fig. 3 is an enlarged view of a portion a of fig. 1 according to the present invention.

In the figure: 1. an electric box; 2. a baffle plate; 3. a top cover; 4. a wire inlet hole; 5. a damping device; 6. a first fixing lever; 7. a first drive lever; 8. a base plate; 9. a first spring; 10. drying the plate; 11. a filter housing; 12. a fan; 13. a clamping device; 14. a telescopic rod; 15. a base; 16. a second fixing bar; 17. A second transmission rod; 18. a limiting rod; 19. a transformer body; 20. a fixed cylinder; 21. an inner barrel; 22. A slider; 23. a push rod; 24. connecting blocks; 25. a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides an embodiment: a leakage protection device of a three-phase dry-type transformer comprises an electric box 1, wherein the tops of two ends of the electric box are respectively provided with a baffle plate 2, the top of the electric box 1 is provided with a top cover 3, the bottom of one end of the electric box 1 is provided with a wire inlet 4, the bottom of the electric box 1 is provided with a damping device 5, two ends of the bottom end in the damping device 5 are respectively provided with a first fixed rod 6, the top of the first fixed rod 6 is hinged with a first transmission rod 7, one end of the first transmission rod 7 away from the hinged point of the first fixed rod 6 is hinged with a bottom plate 8, two ends of the bottom in the damping device 5 are provided with a first spring 9, two ends of the bottom end in the damping device 5 away from the first fixed rod 6 are respectively provided with a fixed cylinder 20, the central position of the top of the fixed cylinder 20 is provided with an inner cylinder 21, the inner part of, second spring 25 is all installed at the both ends of connecting block 24 bottom, the central point of top cap 3 bottom puts and installs drying plate 10, filter mantle 11 is all installed at the both ends on 1 inside top of electronic box, filter mantle 11 internally mounted has fan 12, clamping device 13 is installed to 8 top central points of bottom plate put, the central point of the inside bottom of clamping device 13 puts and installs telescopic link 14, base 15 is installed on the top of telescopic link 14, the top of base 15 is provided with transformer body 19, second dead lever 16 is all installed at the both ends of 1 inside bottom of electronic box, the top of second dead lever 16 articulates there is second transfer line 17, the one end that second dead lever 16 pin joint was kept away from to second transfer line 17 articulates there is gag lever post 18.

In this implementation, the top of first spring 9 is connected with the surface of first transfer line 7, and the through-hole that corresponds and size looks adaptation with 8 positions of bottom plate is all seted up to damping device 5's top and electronic box 1's bottom, and the both ends of 8 bottoms of bottom plate are connected with the top of connecting block 24 respectively, and bottom plate 8 receives external force to produce and to rock and to drive first transfer line 7 and connecting block 24 and remove.

In this embodiment, the top of the clamping device 13 is provided with a through hole adapted to the maximum distance between the second transmission rod 17, and two ends of one side of the base 15 are respectively hinged to one end of the limiting rod 18 far away from the hinge point of the second transmission rod 17, so that the second transmission rod 17 can clamp the transformer body 19 through the through hole in the clamping device 13.

In this embodiment, the top of the fixed cylinder 20 is provided with a through hole corresponding to the position of the inner cylinder 21 and having a size suitable for the position of the inner cylinder 21, the top end of the inner cylinder 21 penetrates through the through hole at the top of the fixed cylinder 20 and extends to the outside of the fixed cylinder 20, the bottom ends of the second springs 25 are respectively connected with the two ends of the top of the inner cylinder 21, and the second springs 25 enable the connecting block 24 to have a certain buffering effect in the descending process.

In this embodiment, a through hole corresponding to the position of the push rod 23 and having a size suitable for the push rod 21 is formed in the inner barrel 21, the top end of the push rod 23 penetrates through the through hole in the inner barrel 21 and extends to the top of the inner barrel 21, and the push rod 23 can push the sliding block 22 to slide in the inner barrel 21 through the through hole in the inner barrel 21.

In this implementation, the quantity of baffle 2 is a plurality of and a plurality of baffle 2 and electronic box 1's installation angle and is certain gradient, and the below of through-hole and through-hole position baffle 2 is seted up to the inside at electronic box 1 both ends, and the through-hole that is linked together with drying plate 10 is all seted up to the central point at electronic box 1 top and the bottom of top cap 3, and the through-hole that is linked together with drying plate 10 is seted up to the both sides of top cap 3, can make the circulation of air through the inside through-hole of electronic box 1.

The working principle is as follows: when the transformer body 19 needs to be installed, the transformer body 19 is placed on the top of the base 15, the base 15 is moved by external force, the base 15 can be vertically descended in a limiting way through the telescopic rod 14, the base 15 drives the limiting rod 18 to move, the limiting rod 18 drives the second transmission rod 17 to rotate, a certain limiting effect can be achieved on the second transmission rod 17 through the second fixing rod 16, the second transmission rod 17 clamps the transformer body 19, moisture in the electric box 1 can enter the drying plate 10 to be adsorbed through the through hole communicated with the top of the electric box 1 and the inside of the drying plate 10, when the electric box 1 needs to be installed and moved to shake, the bottom plate 8 is shaken to drive the first transmission rod 7 to move, the first transmission rod 7 drives the first spring 9 to compress and expand to absorb shock, meanwhile, the bottom plate 8 drives the connecting block 24 to move, the connecting block 24 drives the push rod 23, meanwhile, the connecting block 24 compresses the second spring 25 to expand the second spring 25, the push rod 23 drives the sliding block 22 to slide in the inner cavity of the inner cylinder 21, and meanwhile, the sliding block 22 presses lubricating oil in the cavities of the inner cylinder 21 and the fixing strip 20, so that a certain buffering effect can be achieved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides a three-phase dry-type transformer earth leakage protection device, includes electronic box (1), its characterized in that: the novel electric box comprises an electric box body, wherein baffle plates (2) are installed at the tops of two ends of the electric box body, a top cover (3) is installed at the top of the electric box body (1), a wire inlet hole (4) is formed in the bottom of one end of the electric box body (1), a damping device (5) is installed at the bottom of the electric box body (1), first fixing rods (6) are installed at two ends of the inner bottom end of the damping device (5), a first transmission rod (7) is hinged to the top of each first fixing rod (6), a bottom plate (8) is hinged to one end, away from the hinge joint of each first fixing rod (6), of each first transmission rod (7), first springs (9) are installed at two ends of the inner bottom of the damping device (5), fixed cylinders (20) are installed at two ends, away from the first fixing rods (6), and inner cylinders (21) are installed at the central positions of the tops of the fixed cylinders (20), the inner sliding device is characterized in that a sliding block (22) is arranged inside the inner barrel (21), a push rod (23) is arranged at the center of the top of the sliding block (22), a connecting block (24) is arranged at the top end of the push rod (23), a second spring (25) is arranged at each of two ends of the bottom of the connecting block (24), a drying plate (10) is arranged at the center of the bottom of the top cover (3), a filter cover (11) is arranged at each of two ends of the top of the inner part of the electric box (1), a fan (12) is arranged inside the filter cover (11), a clamping device (13) is arranged at the center of the top of the bottom plate (8), a telescopic rod (14) is arranged at the center of the bottom of the inner part of the clamping device (13), a base (15) is arranged at the top of the telescopic rod (14), a transformer body (19) is arranged at the top of the base (15), and a second fixing rod (16) is arranged at each of the two ends of the bottom of the inner part of the electric box (1), the top of the second fixed rod (16) is hinged with a second transmission rod (17), and one end, away from the hinged point of the second fixed rod (16), of the second transmission rod (17) is hinged with a limiting rod (18).

2. A leakage protection device for a three-phase dry-type transformer as claimed in claim 1, wherein: the top of the first spring (9) is connected with the outer surface of the first transmission rod (7), through holes which correspond to the bottom plate (8) in position and are matched in size are formed in the top of the damping device (5) and the bottom of the electric box (1), and two ends of the bottom plate (8) are connected with the top of the connecting block (24) respectively.

3. A leakage protection device for a three-phase dry-type transformer as claimed in claim 1, wherein: the top of the clamping device (13) is provided with a through hole matched with the second transmission rod (17) in the largest distance size, and two ends of one side of the base (15) are hinged with one end, away from the hinge point of the second transmission rod (17), of the limiting rod (18) respectively.

4. A leakage protection device for a three-phase dry-type transformer as claimed in claim 1, wherein: the top of the fixed cylinder (20) is provided with a through hole which corresponds to the position of the inner cylinder (21) and is matched with the inner cylinder in size, the top end of the inner cylinder (21) penetrates through the through hole in the top of the fixed cylinder (20) and extends to the outside of the fixed cylinder (20), and the bottom end of the second spring (25) is connected with two ends of the top of the inner cylinder (21) respectively.

5. A leakage protection device for a three-phase dry-type transformer as claimed in claim 1, wherein: the inner barrel (21) is internally provided with a through hole which corresponds to the push rod (23) in position and is matched with the push rod in size, and the top end of the push rod (23) penetrates through the through hole in the inner barrel (21) and extends to the top of the inner barrel (21).

6. A leakage protection device for a three-phase dry-type transformer as claimed in claim 1, wherein: the number of baffle (2) is a plurality of and a plurality of baffle (2) and the installation angle of electronic box (1) is certain gradient, the below of through-hole and through-hole position baffle (2) is seted up to the inside at electronic box (1) both ends, the through-hole that is linked together with drying plate (10) is all seted up to the central point at electronic box (1) top and the bottom of top cap (3).