CN217640890U

CN217640890U - Multi-winding multi-voltage dry-type transformer

Info

Publication number: CN217640890U
Application number: CN202221360524.8U
Authority: CN
Inventors: 丁骏龙; 刘小利
Original assignee: Nanjing Daqo Transformer Systems Co ltd
Current assignee: Nanjing Daqo Transformer Systems Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-10-21
Anticipated expiration: 2032-05-31

Abstract

The utility model relates to the technical field of auxiliary devices of electric power facilities, in particular to a multi-winding multi-voltage dry-type transformer which has simple structure, can shield air holes when a cooling fan is not used, and prevents impurities from entering the cooling fan; the iron core comprises an upper iron yoke, a lower iron yoke and an iron core fixed on the upper iron yoke and the lower iron yoke, wherein square tubes are fixed on two sides of the lower iron yoke; further comprising: the door plate is fixed on the square pipe, and a cooling fan is fixed on the door plate through a cushion block; l-shaped plates are fixed on the left side and the right side of the door-shaped plate, and L-shaped grooves are formed in the L-shaped plates; still include the apron, apron one end is fixed with the removal axle I that stretches into to L type groove horizontal part, and the other end is fixed with the removal axle II that stretches into to L type groove vertical part.

Description

Multi-winding multi-voltage dry-type transformer

Technical Field

The utility model relates to a technical field of electric power facility auxiliary device especially relates to a multi-winding multi-voltage dry-type transformer.

Background

The dry-type transformer is widely used in places such as local illumination, high-rise buildings, airports, wharf CNC mechanical equipment and the like, and simply means a transformer in which an iron core and a winding are not immersed in insulating oil; to improve the practicability, multi-voltage has become a feature of dry type transformers.

The existing multi-winding multi-voltage dry-type transformer mostly adopts a cooling fan to cool air, a fan in a cold area is often provided with an air hole for air outlet, when the cooling fan stops working, impurities easily enter the inside of the cooling fan along the air hole, and the service life of the cooling fan is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a many windings multivoltage dry-type transformer, its simple structure when cooling blower does not use, can shelter from the wind hole, prevents in impurity enters into the cooling blower.

The utility model discloses a multi-winding multi-voltage dry-type transformer, which comprises an upper iron yoke, a lower iron yoke and an iron core fixed on the upper iron yoke and the lower iron yoke, wherein square tubes are fixed on both sides of the lower iron yoke; further comprising:

the door plate is fixed on the square pipe, and a cooling fan is fixed on the door plate through a cushion block;

l-shaped plates are fixed on the left side and the right side of the door-shaped plate, and L-shaped grooves are formed in the L-shaped plates;

still including the apron, apron one end is fixed with the removal axle I that stretches into to L type groove horizontal part, and the other end is fixed with the removal axle II that stretches into to the vertical part in L type groove.

Furthermore, support shafts are rotatably mounted on two sides of the door-shaped plate, power arms are fixed on the support shafts, strip holes are formed in the power arms, and the first moving shaft penetrates through the strip holes;

an extension arm is fixed on the support shaft.

Furthermore, a touch plate is fixed on one power arm;

one side of door template is fixed with the base plate, and threaded connection has the lead screw on the base plate, and slidable mounting has the guide bar on the base plate, and the one end installation hand wheel of lead screw, the other end rotate the mounting base, install the proximity switch who is used for controlling cooling blower switching on the base.

Furthermore, a ratchet wheel is fixed on one of the supporting shafts;

a fixing ring is fixed on one side of the door-shaped plate, a locking block slides on the fixing ring, and the end, matched with the ratchet wheel, of the locking block is an inclined surface;

a support ring is fixed on the locking block, a spring is sleeved on the locking block, and two ends of the spring are respectively contacted with the fixing ring and the support ring.

Further, the end part of the extension arm is in threaded connection with a first operating ring.

Furthermore, one end of the locking block, which is far away from the ratchet wheel, is in threaded connection with a second operating ring.

Further, a nut is connected to the screw rod in a threaded manner.

Furthermore, a baffle plate for limiting the touch plate is fixed on the door-shaped plate.

Compared with the prior art, the beneficial effects of the utility model are that: during normal use, after cooling blower stop work, hold apron and pulling apron, remove the horizontal part that axle one was followed L type groove and remove, remove two vertical portions along L type groove of axle simultaneously and remove, the apron shelters from the wind hole at cooling blower top, prevents that impurity from dropping and drops to cooling blower inside along the wind hole, and the apron of this device is placed in cooling blower's side, and occupation space is not big.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a block diagram of the left side of FIG. 1;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is a schematic view of a door profile, an L profile, a moving axis, etc.;

in the drawings, the reference numbers: 1. a lower iron yoke; 2. an iron core; 3. a square tube; 4. a door profile; 5. cushion blocks; 6. a cooling fan; 7. an L-shaped plate; 8. a cover plate; 9. a first moving shaft; 10. a second moving shaft; 11. a support shaft; 12. a power arm; 13. an extension arm; 14. a touch panel; 15. a substrate; 16. a screw rod; 17. a guide bar; 18. a hand wheel; 19. a base; 20. a proximity switch; 21. a ratchet wheel; 22. a fixing ring; 23. a locking block; 24. a support ring; 25. a spring; 26. operating a first ring; 27. a second operating ring; 28. a nut; 29. and a baffle plate.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 4, the multi-winding and multi-voltage dry-type transformer of the present invention comprises an upper yoke, a lower yoke 1 and an iron core 2 fixed on the upper yoke and the lower yoke, wherein square tubes 3 are fixed on both sides of the lower yoke 1; further comprising:

a door-shaped plate 4 fixed on the square tube 3, wherein a cooling fan 6 is fixed on the door-shaped plate 4 through a cushion block 5;

l-shaped plates 7 are fixed on the left side and the right side of the door-shaped plate 4, and L-shaped grooves are formed in the L-shaped plates 7;

the device also comprises a cover plate 8, wherein one end of the cover plate 8 is fixedly provided with a first moving shaft 9 extending into the horizontal part of the L-shaped groove, the other end of the cover plate 8 is fixedly provided with a second moving shaft 10 extending into the vertical part of the L-shaped groove, and bearings are arranged on the first moving shaft 9 and the second moving shaft 10 and are in contact with the inner wall of the L-shaped groove in order to reduce the abrasion of the first moving shaft 9 and the second moving shaft 10;

in this embodiment, during normal use, after cooling blower 6 stop work, hold apron 8 and pulling apron 8, remove the horizontal part in L type groove along one 9, remove two 10 vertical portions along L type groove simultaneously and remove, and apron 8 shelters from the wind hole at cooling blower 6 top, prevents that impurity from dropping to cooling blower 6 inside along the wind hole.

As a preferable scheme of the above embodiment, support shafts 11 are rotatably mounted on both sides of the door-shaped plate 4, a power arm 12 is fixed on each support shaft 11, a long hole is formed in each power arm 12, and the first moving shaft 9 penetrates through the long hole;

an extension arm 13 is fixed on the support shaft 11;

in this embodiment, when the cover plate 8 needs to be moved, the extension arm 13 is held and rotated, so that the extension arm 13, the support shaft 11 and the power arm 12 all rotate, and the first moving shaft 9 passes through the elongated hole in the power arm 12, so that the first moving shaft 9 and the second moving shaft 10 move along the L-shaped groove under the driving of the power arm 12, so as to move the cover plate 8.

As a preferable solution of the above embodiment, one of the power arms 12 is fixed with a touch plate 14;

a base plate 15 is fixed on one side of the door-shaped plate 4, a screw rod 16 is connected to the base plate 15 in a threaded manner, a guide rod 17 is slidably mounted on the base plate 15, a hand wheel 18 is mounted at one end of the screw rod 16, a base 19 is rotatably mounted at the other end of the screw rod, and a proximity switch 20 for controlling the cooling fan 6 to be opened and closed is mounted on the base 19;

in the embodiment, the lead screw 16 is rotated by rotating the hand wheel 18, the positions of the base 19 and the proximity switch 20 are adjusted by the cooperation of the guide rod 17, as shown in the figure, the touch plate 14 is matched with the proximity switch 20, the proximity switch 20 controls the cooling fan 6 to be turned on to radiate heat to the iron core 2, and when the cover plate 8 is closed, the touch plate 14 rotates along with the driving force arm 12, the touch plate 14 is gradually far away from the proximity switch 20, and the proximity switch 20 controls the cooling fan 6 to be turned off.

As a preferable aspect of the above embodiment, one of the support shafts 11 is fixed with a ratchet 21;

a fixing ring 22 is fixed on one side of the door-shaped plate 4, a locking block 23 slides on the fixing ring 22, and the end, matched with the ratchet wheel 21, of the locking block 23 is an inclined surface;

a supporting ring 24 is fixed on the locking block 23, a spring 25 is sleeved on the locking block 23, and two ends of the spring 25 are respectively contacted with the fixing ring 22 and the supporting ring 24;

in the embodiment, in the process that the cover plate 8 blocks the wind hole, the ratchet wheel 21 rotates along with the support shaft 11, because the ratchet wheel 21 is matched with the inclined surface of the locking block 23 at this time, the locking block 23 and the support ring 24 reciprocate relative to the fixing ring 22, and the rotation of the ratchet wheel 21 is not hindered, but when the support shaft 11 and the ratchet wheel 21 rotate reversely, the tooth end part on the ratchet wheel 21 is clamped on the locking block 23 and does not rotate reversely, at this time, the locking block 23 should be manually moved to be separated from the ratchet wheel 21, and then the extension arm 13 is rotated.

As a preferable scheme of the above embodiment, the end of the extension arm 13 is connected with a first operating ring 26 in a threaded manner;

in this embodiment, the first handle ring 26 is held to rotate the extension arm 13, and the extension arm 13 is more easily stressed and more comfortable.

As a preferable scheme of the above embodiment, one end of the locking block 23 away from the ratchet wheel 21 is connected with a second operating ring 27 in a threaded manner;

in this embodiment, the first operating ring 26 is held to move the locking block 23, so that the locking block 23 is more conveniently stressed and is more comfortable.

As a preferable solution of the above embodiment, the screw rod 16 is screwed with a nut 28;

in the present embodiment, after the position of the proximity switch 20 is adjusted, the nut 28 is tightened to fix the position of the proximity switch 20.

As a preferable scheme of the above embodiment, a baffle 29 for limiting the touch plate 14 is further fixed on the door-shaped plate 4;

in this embodiment, when the stop 29 contacts the contact plate 14, the contact plate 14 can be properly engaged with the proximity switch 20 to prevent damage to the proximity switch 20 due to excessive movement of the contact plate.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A multi-winding multi-voltage dry-type transformer comprises an upper iron yoke, a lower iron yoke (1) and an iron core (2) fixed on the upper iron yoke and the lower iron yoke, wherein square tubes (3) are fixed on two sides of the lower iron yoke (1); it is characterized by also comprising:

a door-shaped plate (4) fixed on the square tube (3), wherein a cooling fan (6) is fixed on the door-shaped plate (4) through a cushion block (5);

l-shaped plates (7) are fixed on the left side and the right side of the door-shaped plate (4), and L-shaped grooves are formed in the L-shaped plates (7);

still include apron (8), apron (8) one end is fixed with and stretches into removal axle one (9) to L type groove horizontal part, and the other end is fixed with and stretches into removal axle two (10) to L type groove vertical part.

2. A multi-winding multi-voltage dry-type transformer according to claim 1, wherein the door-shaped plate (4) is rotatably mounted with supporting shafts (11) at both sides, the supporting shafts (11) are fixed with power arms (12), the power arms (12) are provided with elongated holes, and the first moving shaft (9) passes through the elongated holes;

an extension arm (13) is fixed on the support shaft (11).

3. A multi-winding, multi-voltage dry-type transformer according to claim 2, wherein a contact plate (14) is fixed to one of the power arms (12);

a base plate (15) is fixed on one side of the door-shaped plate (4), a screw rod (16) is connected to the base plate (15) in a threaded mode, a guide rod (17) is installed on the base plate (15) in a sliding mode, a hand wheel (18) is installed at one end of the screw rod (16), an installation base (19) is rotated at the other end of the screw rod, and a proximity switch (20) used for controlling the cooling fan (6) to be opened and closed is installed on the base (19).

4. A multi-winding multi-voltage dry-type transformer according to claim 3, wherein a ratchet (21) is fixed to one of the supporting shafts (11);

a fixing ring (22) is fixed on one side of the door-shaped plate (4), a locking block (23) slides on the fixing ring (22), and the end, matched with the ratchet wheel (21), of the locking block (23) is an inclined surface;

a supporting ring (24) is fixed on the locking block (23), a spring (25) is sleeved on the locking block (23), and two ends of the spring (25) are respectively contacted with the fixing ring (22) and the supporting ring (24).

5. A multi-winding multi-voltage dry-type transformer according to claim 4, characterized in that the end of said extension arm (13) is screwed with a first operating ring (26).

6. A multi-winding multi-voltage dry transformer according to claim 5, characterized in that a second operating ring (27) is screwed to the end of the locking block (23) remote from the ratchet (21).

7. A multi-winding, multi-voltage dry-type transformer according to claim 6, characterized in that the screw rod (16) is threaded with a nut (28).

8. A multi-winding multi-voltage dry-type transformer according to claim 7, characterized in that a baffle (29) limiting the contact plate (14) is further fixed to the door-shaped plate (4).