CN210575368U

CN210575368U - Protective device of dry-type transformer

Info

Publication number: CN210575368U
Application number: CN201921446240.9U
Authority: CN
Inventors: 杨朋
Original assignee: Shenzhen Baiheng Electric Co ltd
Current assignee: Shenzhen Baiheng Electric Co ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-05-19
Anticipated expiration: 2029-09-02

Abstract

The utility model belongs to the technical field of transformer protection, in particular to a protection device of a dry-type transformer, which comprises a transformer body, wherein a lower shell for accommodating the transformer body is arranged outside the transformer body, a transverse supporting plate is arranged inside the lower shell, the bottom end of the transformer body is fixedly connected with the supporting plate through a bolt, a plurality of buffer springs are fixedly arranged on the lower surface of the supporting plate, and the bottom ends of the buffer springs are fixedly connected with the lower shell; the top of casing is provided with the casing down, the bottom outside of going up the casing has set firmly an upper fixed plate, the top outside of casing has set firmly the bottom plate down, through bolt fixed connection between upper fixed plate and the bottom plate, overcome prior art's not enough, set up sealing connection's last casing and casing down in dry-type transformer's the outside, avoid rainwater and raise dust to get into dry-type transformer, prolonged dry-type transformer's life, avoided the potential safety hazard.

Description

Protective device of dry-type transformer

Technical Field

The utility model belongs to the technical field of the transformer protection, concretely relates to protector of dry-type transformer.

Background

Dry-type transformers are widely used in local lighting, high-rise buildings, airports, wharf CNC machines and other places, and simply, dry-type transformers refer to transformers in which iron cores and windings are not immersed in insulating oil, and the cooling methods are divided into natural air cooling (AN) and forced air cooling (AF). During natural air cooling, the transformer can continuously operate for a long time under the rated capacity. When forced air cooling is carried out, the output capacity of the transformer can be improved by 50 percent. The device is suitable for intermittent overload operation or emergency accident overload operation; because the load loss and the impedance voltage amplification are large during overload and the device is in a non-economic operation state, the device is not required to be in continuous overload operation for a long time.

The dry type transformer is the equipment commonly used in the building site, but current dry type transformer lacks protector, stands to wind and blows the rain and hits, and a large amount of raise dusts accumulate on dry type transformer's surface, influences dry type transformer's use, has the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a protector of dry-type transformer has overcome the not enough of prior art, sets up sealing connection's last casing and casing down in dry-type transformer's the outside, avoids rainwater and raise dust to get into dry-type transformer, has prolonged dry-type transformer's life, has avoided the potential safety hazard.

In order to solve the above problems, the utility model adopts the following technical proposal:

a protection device of a dry-type transformer comprises a transformer body, wherein a lower shell used for accommodating the transformer body is arranged on the outer side of the transformer body, a transverse supporting plate is arranged inside the lower shell, the bottom end of the transformer body is fixedly connected with the supporting plate through bolts, a plurality of buffer springs are fixedly arranged on the lower surface of the supporting plate, and the bottom ends of the buffer springs are fixedly connected with the lower shell; an upper shell is arranged above the lower shell, an upper fixing plate is fixedly arranged on the outer side of the bottom end of the upper shell, a lower fixing plate is fixedly arranged on the outer side of the top end of the lower shell, and the upper fixing plate and the lower fixing plate are fixedly connected through bolts; the top end of the lower shell is provided with an annular connecting groove, the top end of the upper shell is fixedly provided with an annular connecting plate, and the connecting plate is inserted into the connecting groove.

Further, the top of going up the casing has set firmly the rainshelter, the below of rainshelter is provided with hollow heat dissipation case, the thermovent has been seted up to the preceding terminal surface of heat dissipation case, the thermovent has set firmly heat dissipation grid, the top of going up the casing is provided with a plurality of ventilation holes, the ventilation hole runs through the outer wall of heat dissipation case.

Furthermore, the preceding terminal surface of heat dissipation case is provided with the dust screen that is used for sheltering from the thermovent, four angles of dust screen pass through screw and heat dissipation case fixed connection.

Further, the axis of rotation is all worn to be equipped with in the both sides of going up the casing, the axis of rotation is connected with last casing rotation, the both ends of axis of rotation are connected with initiative fan and driven fan respectively, the initiative fan is located the outside of casing.

Further, the bottom of spread groove is provided with to have elastic sealed the pad, the bottom of connecting plate closely laminates with sealed the pad.

Further, all wear to be equipped with the guide bar on four angles of backup pad, the bottom and the casing fixed connection down of guide bar, the top of guide bar has set firmly the limiting plate.

Further, the upper shell and the lower shell are both made of elastic plastic with ductility.

Furthermore, a warning board is arranged on the front end face of the upper shell.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model relates to a protector of dry-type transformer, through setting up upper casing, lower casing, fixing base, upper fixed plate, bottom plate, backup pad, buffer spring, limiting plate, guide way, spread groove, connecting plate and sealed pad, install the dry-type transformer in the backup pad, the upper casing and the lower casing of airtight connection avoid rainwater and raise dust to get into the dry-type transformer, have improved the security of dry-type transformer, have reduced the fault rate of dry-type transformer; through setting up heat dissipation case, dust screen, initiative fan, axis of rotation, driven fan, thermovent, heat dissipation grid for inside circulation of air, the dry-type transformer heat dissipation of being convenient for.

The utility model discloses simple structure, the modern design sets up sealing connection's last casing and lower casing in dry-type transformer's the outside, avoids rainwater and raise dust to get into dry-type transformer, has prolonged dry-type transformer's life, has avoided the potential safety hazard.

Drawings

Fig. 1 is a schematic structural diagram of a protection device of a dry-type transformer.

Fig. 2 is a schematic diagram of an internal structure of a protection device of a dry-type transformer.

Fig. 3 is a partially enlarged structural schematic view of a protection device of a dry-type transformer.

In the figure: 1. a lower housing; 2. an upper housing; 3. a fixed seat; 4. a heat dissipation box; 5. a dust screen; 6. an active fan; 7. an upper fixing plate; 8. a lower fixing plate; 9. a rain shelter; 10. a heat dissipation port; 11. a heat dissipation grid; 12. a vent hole; 13. a rotating shaft; 14. a driven fan; 15. a transformer body; 16. a support plate; 17. a buffer spring; 18. a guide bar; 19. a limiting plate; 20. connecting grooves; 21. a connecting plate; 22. and a gasket.

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.

As shown in fig. 1-3, the protection device for a dry-type transformer of the present invention comprises a transformer body 15, wherein a lower casing 1 for accommodating the transformer body 15 is disposed outside the transformer body 15, a transverse support plate 16 is disposed inside the lower casing 1, the bottom end of the transformer body 15 is fixedly connected to the support plate 16 through a bolt, a plurality of buffer springs 17 are fixedly disposed on the lower surface of the support plate 16, and the bottom ends of the buffer springs 17 are fixedly connected to the lower casing 1; an upper shell 2 is arranged above the lower shell 1, a transformer body 15 is positioned in a cavity formed between the upper shell 2 and the lower shell 1, an upper fixing plate 7 is fixedly arranged on the outer side of the bottom end of the upper shell 2, a lower fixing plate 8 is fixedly arranged on the outer side of the top end of the lower shell 1, and the upper fixing plate 7 and the lower fixing plate 8 are fixedly connected through bolts; the top end of the lower shell 1 is provided with an annular connecting groove 20, the top end of the upper shell 2 is fixedly provided with an annular connecting plate 21, and the connecting plate 21 is inserted into the connecting groove 20 to enhance the tightness of the device.

A rain shelter 9 is fixedly arranged at the top end of the upper shell 2, a hollow heat dissipation box 4 is arranged below the rain shelter 9, a heat dissipation port 10 is formed in the front end face of the heat dissipation box 4, a heat dissipation grid 11 is fixedly arranged in the heat dissipation port 10, a plurality of ventilation holes 12 are formed in the top end of the upper shell 2, and the ventilation holes 12 penetrate through the outer wall of the heat dissipation box 4, so that the air circulation is accelerated, and the heat dissipation efficiency is improved; the dustproof net 5 used for shielding the heat dissipation port 10 is arranged on the front end face of the heat dissipation box 4, and four corners of the dustproof net 5 are fixedly connected with the heat dissipation box 4 through screws, so that dust is prevented from entering the transformer body 15, and the dustproof net 5 is convenient to replace; go up the both sides of casing 2 and all wear to be equipped with axis of rotation 13, axis of rotation 13 rotates with last casing 2 to be connected, and the both ends of axis of rotation 13 are connected with initiative fan 6 and driven fan 14 respectively, and initiative fan 6 is located the outside of casing 2, utilizes wind energy to drive initiative fan 6, makes driven fan 14 rotate for inside circulation of air.

The bottom end of the connecting groove 20 is provided with an elastic sealing gasket 22, and the bottom end of the connecting plate 21 is tightly attached to the sealing gasket 22, so that rainwater is prevented from entering the equipment; guide rods 18 are arranged at four corners of the support plate 16 in a penetrating manner, the bottom ends of the guide rods 18 are fixedly connected with the lower shell 1, and limiting plates 19 are fixedly arranged at the top ends of the guide rods 18; the upper shell 2 and the lower shell 1 are both made of elastic plastic with ductility, so that the anti-collision capacity of the upper shell 2 and the lower shell 1 is greatly improved, the weight of the upper shell 2 and the lower shell 1 is reduced, and the operation is convenient; the front end face of the upper shell 2 is provided with a warning board.

To sum up, in the protection device for the dry-type transformer, when in use, the dry-type transformer is fixed on the support plate 16 through the bolt, an operator lifts the upper shell 2, inserts the connecting plate 21 into the connecting groove 20, and presses the sealing gasket 22 downwards by the connecting plate 21, so that the airtightness between the upper shell 2 and the lower shell 1 is enhanced, rainwater is prevented from entering, and then the upper fixing plate 7 and the lower fixing plate 8 are fixedly connected through the bolt; in the using process, the dry-type transformer generates heat when working, hot air upwards passes through the vent holes 12, the heat dissipation box 4 and the heat dissipation port 10 to exchange heat with outside air, the dustproof net 5 prevents dust from entering the heat dissipation box 4, the dustproof net 5 is taken down after being used for a period of time, cleaning or replacement is carried out, and the air is kept to smoothly pass through; when the outside starts wind, the wind drives the driving fan 6 and the rotating shaft 13 to rotate together, so that the driven fan 14 is driven to rotate, the air circulation inside the upper shell 2 and the lower shell 1 is accelerated, and the heat dissipation efficiency of the dry-type transformer is improved.

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.

Claims

1. A protector of dry-type transformer, includes transformer body (15), its characterized in that: a lower shell (1) used for containing the transformer body (15) is arranged on the outer side of the transformer body (15), a transverse supporting plate (16) is arranged inside the lower shell (1), the bottom end of the transformer body (15) is fixedly connected with the supporting plate (16) through bolts, a plurality of buffer springs (17) are fixedly arranged on the lower surface of the supporting plate (16), and the bottom ends of the buffer springs (17) are fixedly connected with the lower shell (1); an upper shell (2) is arranged above the lower shell (1), an upper fixing plate (7) is fixedly arranged on the outer side of the bottom end of the upper shell (2), a lower fixing plate (8) is fixedly arranged on the outer side of the top end of the lower shell (1), and the upper fixing plate (7) is fixedly connected with the lower fixing plate (8) through bolts; the top end of the lower shell (1) is provided with an annular connecting groove (20), the top end of the upper shell (2) is fixedly provided with an annular connecting plate (21), and the connecting plate (21) is inserted into the connecting groove (20).

2. A dry-type transformer protector as claimed in claim 1, wherein: go up the top of casing (2) and set firmly rainshelter (9), the below of rainshelter (9) is provided with hollow heat dissipation case (4), thermovent (10) have been seted up to the preceding terminal surface of heat dissipation case (4), thermovent (10) internal fixation has heat dissipation grid (11), the top of going up casing (2) is provided with a plurality of ventilation holes (12), ventilation hole (12) run through the outer wall of heat dissipation case (4).

3. A dry-type transformer protector as claimed in claim 2, wherein: the front end face of the heat dissipation box (4) is provided with a dustproof net (5) used for shielding the heat dissipation opening (10), and four corners of the dustproof net (5) are fixedly connected with the heat dissipation box (4) through screws.

4. A dry transformer protector as claimed in claim 3 in which: go up the both sides of casing (2) and all wear to be equipped with axis of rotation (13), axis of rotation (13) are connected with last casing (2) rotation, the both ends of axis of rotation (13) are connected with initiative fan (6) and driven fan (14) respectively, initiative fan (6) are located the outside of last casing (2).

5. A dry-type transformer protector as claimed in claim 1, wherein: the bottom of connecting groove (20) is provided with has elastic sealed pad (22), the bottom and the sealed pad (22) of connecting plate (21) closely laminate.

6. A dry-type transformer protector as claimed in claim 1, wherein: all wear to be equipped with guide bar (18) on four angles of backup pad (16), the bottom and lower casing (1) fixed connection of guide bar (18), limiting plate (19) have set firmly on the top of guide bar (18).

7. A dry-type transformer protector as claimed in claim 1, wherein: the upper shell (2) and the lower shell (1) are both made of elastic plastic with ductility.

8. A dry-type transformer protector as claimed in claim 1, wherein: and a warning board is arranged on the front end face of the upper shell (2).