CN217544312U

CN217544312U - Novel cooling structure of dry-type transformer

Info

Publication number: CN217544312U
Application number: CN202220842871.8U
Authority: CN
Inventors: 吴政法; 张严; 何兆攀
Original assignee: Guangdong Weihua Electric Co ltd
Current assignee: Guangdong Weihua Electric Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-10-04
Anticipated expiration: 2032-04-13

Abstract

The utility model belongs to the technical field of the transformer cooling, and a novel cooling structure of dry-type transformer is disclosed, which comprises a fixing frame, the wind group case of top fixed mounting of mount, the fixed joint in front end of wind group incasement chamber has the protection frame, the bottom fixed mounting of wind group incasement chamber has the mounting bracket, the quantity of mounting bracket is four, four the equal fixed mounting in upper end of mounting bracket inside has driving motor, the other end of driving motor output shaft is fixed to articulate the connecting axle. The utility model discloses a mounting bracket, spiral flabellum and support bearing, at first can be convenient for driving motor and the holistic installation of spiral flabellum through four mounting brackets and remove the operation, and open the driving motor of different positions and different quantity, can carry out cooling to the part that need carry out cooling in the in-service use, can reach accurate cooling's effect to give the efficiency that improves cooling.

Description

Novel cooling structure of dry-type transformer

Technical Field

The utility model belongs to the technical field of the transformer cooling, specifically a novel dry-type transformer's cooling structure.

Background

The dry type transformer is a transformer with AN iron core and a winding which are not immersed in insulating oil, and is widely used for local illumination, high-rise buildings, airports, wharf CNC mechanical equipment and the like.

At present, dry-type transformer is at the during operation, inside iron core and winding can produce a large amount of heats, need in time eliminate the heat, long-time operation is under high temperature state, make dry-type transformer job stabilization easily, and although current dry-type transformer cooling equipment also can reach the effect of cooling, nevertheless because current dry-type transformer cooling structure mainly utilizes single radiator fan subassembly to cool down, its cooling efficiency is lower, and there is the temperature that can lead to blowing transformer cooling air along with the rising of the inside temperature of transformer along with it risees, thereby further reduce cooling efficiency, consequently, need improve it.

Simultaneously, because current dry-type transformer cooling structure need utilize the fan to blow the inside of breast transformer with outside air current to reach cooling's effect, and because the fan rigidity of cooling structure in the use, but the wind direction is the changeful during the air, and then in case wind direction and fan blow to the wind in the air not unique can increase the fan work to the consumption of energy, be unfavorable for energy-concerving and environment-protective, consequently also need improve it.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above problem, the utility model provides a novel dry-type transformer's cooling structure has the advantage that fan thermal efficiency is high and the energy consumption is low.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel cooling structure of dry-type transformer, includes the mount, the wind group case of top fixed mounting of mount, the fixed joint in front end of wind group incasement chamber has the protection frame, the bottom fixed mounting of wind group incasement chamber has the mounting bracket, the quantity of mounting bracket is four, four the equal fixed mounting in upper end of mounting bracket inside has driving motor, the fixed coupling of the other end of driving motor output shaft has the connecting axle, the positive fixedly connected with driving seat of connecting axle, the external fixed surface of driving seat has cup jointed spiral flabellum, the quantity of spiral flabellum is four, four spiral flabellum and mounting bracket evenly distributed are in wind group incasement chamber left end to right-hand member, because the setting of four mounting brackets and spiral flabellum, can be convenient for the staff according to actual need open the driving motor of required quantity, and then both can reach the effect of in time cooling, also can ensure simultaneously can be to the cooling of the inside wider within range spare part of transformer to improve cooling efficiency and cooling effect.

As an optimal technical scheme of the utility model, the fixed surface of connecting axle has cup jointed support bearing, the fixed cover in outside face of support bearing has connect the support frame, the surface of support frame and the front end fixed connection of mounting bracket inner chamber through the support bearing who sets up, can carry out the location support to the connecting axle under the cooperation of support frame, can reduce the rotatory friction that produces of connecting axle through support bearing moreover, and then reduce the energy damage, can alleviate the friction thermogenesis of generating heat simultaneously.

As a preferred technical scheme of the utility model, the through hole that is located mounting bracket the place ahead is seted up to the front end at wind group case top, the top fixedly connected with of wind group case is located the installation cover at through hole top.

As a preferred technical scheme of the utility model, the inner wall of through hole is smooth, and the inner wall of through hole and installation cover communicates mutually, owing to the setting of installation cover, both can ensure that the guide duct can communicate mutually through the inside of through hole with the wind group case, can ensure the stable installation to the rotatory cover in location simultaneously, and then ensures that the guide duct can be stably rotatory under the restriction of the rotatory cover in location.

As a preferred technical scheme of the utility model, the location rotary sleeve has been cup jointed in the inside activity of installation cover, the top swing joint of location rotary sleeve has the thread bush, the side of thread bush inner chamber and the surface screw thread of installation cover cup joint, the upper and lower both ends of location rotary sleeve respectively with installation cover and thread bush between equal activity joint have the ball, through the location rotary sleeve that sets up, can make the location rotary sleeve can be in the stable and nimble motion in inside of installation cover under the restriction of ball and thread bush, and then ensure that the guide duct can be stable and rotate in a flexible way under the drive of windward plate.

As an optimal technical scheme of the utility model, the fixed intercommunication in top of location rotary sleeve has the guide duct that is located the thread bush inside, the fixed intercommunication in side at guide duct top has the windward cover, the right side fixed mounting of windward cover surface has the locating plate, the left side fixed mounting of windward cover surface has the windward plate, because the setting of windward plate makes the windward plate can make the guide duct rotate in a flexible way under the drive of wind-force at the restriction to the guide duct of installation cover, location rotary sleeve and ball, and then makes the windward cover rotate to the windward side to be convenient for the mounting bracket utilizes outside low temperature air fast.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a mounting bracket, spiral flabellum and support bearing, at first can be convenient for driving motor and the holistic installation of spiral flabellum through four mounting brackets and remove the operation, and open the driving motor of different positions and different quantity, can carry out cooling to the part that need carry out cooling in the in-service use, can reach accurate cooling's effect to give the efficiency that improves cooling.

2. The utility model discloses a location swivel mount, windward cover and windward plate, through the installation cover, the cooperation of thread bush and ball can restrict the motion of location swivel mount, can ensure the location swivel mount simultaneously again and can be stable and nimble rotation under the drive of guide duct, and then can make the guide duct drive the rotatory to windward side of windward cover through the windward plate, thereby make helical fan blade can utilize the outside air under the cooperation of windward cover fast, thereby reduce the loss to the energy when driving motor passes through the helical fan blade and drives the wind motion.

Drawings

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

fig. 2 is a schematic top view of the present invention;

fig. 3 is a schematic front sectional view of the air duct of the present invention;

FIG. 4 is a schematic view of a top cross-sectional structure of the windward plate of the present invention;

FIG. 5 is a schematic side sectional view of the spiral fan blade of the present invention;

FIG. 6 is an enlarged schematic view of the structure at A in FIG. 3;

fig. 7 is an enlarged schematic view of the structure at B in fig. 5.

In the figure: 1. a fixed mount; 2. a wind group box; 3. a protective frame; 4. a mounting frame; 5. a drive motor; 6. a connecting shaft; 7. a transmission seat; 8. a helical fan blade; 9. a support bearing; 10. a support frame; 11. a through hole; 12. installing a sleeve; 13. positioning the rotating sleeve; 14. an air guide pipe; 15. a threaded sleeve; 16. an windward housing; 17. positioning a plate; 18. a windward plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts all belong to the protection scope of the present invention.

As shown in fig. 1 to 7, the utility model provides a novel cooling structure of dry-type transformer, including mount 1, wind group case 2 is installed to the top fixed mounting of mount 1, the front end fixed joint of 2 inner chambers of wind group case has protection frame 3, the bottom fixed mounting of 2 inner chambers of wind group case has mounting bracket 4, the quantity of mounting bracket 4 is four, the equal fixed mounting in upper end of four inside mounting bracket 4 has driving motor 5, the other end of driving motor 5 output shaft is fixed to cup joint has connecting axle 6, the positive fixedly connected with transmission seat 7 of connecting axle 6, the outer fixed surface cover of transmission seat 7 has cup jointed spiral fan blade 8, the quantity of spiral fan blade 8 is four, four

spiral fan blade

8 and 4 evenly distributed in 2 inner chambers of wind group case left end to right-hand member, because four mounting bracket 4 and spiral fan blade 8's setting, the staff of can be convenient for open required quantity's driving motor 5 according to the actual need, and then both can reach the effect of in time cooling, simultaneously also can ensure the cooling that can be to the inside spare part of wider within range of transformer, thereby improve cooling efficiency and cooling effect.

Wherein, the outer fixed surface of connecting axle 6 has cup jointed support bearing 9, and the fixed cover of outside face of support bearing 9 has connect support frame 10, and the surface of support frame 10 and the front end fixed connection of 4 inner chambers of mounting bracket, through the support bearing 9 that sets up, can fix a position the support to connecting axle 6 under the cooperation of support frame 10, can reduce the friction of the rotatory production of connecting axle 6 through support bearing 9 in addition, and then reduce the energy damage, can reduce simultaneously and hinder the friction thermogenesis.

Wherein, the front end at wind group case 2 top is seted up and is located the through hole 11 in mounting bracket 4 the place ahead, and the top fixedly connected with of wind group case 2 is located the installation cover 12 at through hole 11 top.

The inner wall of the through hole 11 is smooth, the through hole 11 is communicated with the inner wall of the mounting sleeve 12, and due to the arrangement of the mounting sleeve 12, the air guide pipe 14 can be ensured to be communicated with the inside of the wind group box 2 through the through hole 11, meanwhile, the stable installation of the positioning rotary sleeve 13 can be ensured, and further, the air guide pipe 14 can be ensured to stably rotate under the limitation of the positioning rotary sleeve 13.

Wherein, the inside activity of installing cover 12 has cup jointed the rotatory cover 13 of location, the top swing joint of the rotatory cover 13 of location has thread bush 15, the side of the 15 inner chambers of thread bush cup joints with the surface screw thread of installing cover 12, the upper and lower both ends of the rotatory cover 13 of location respectively with install between cover 12 and the thread bush 15 equal activity joint have the ball, through the rotatory cover 13 of location that sets up, can make the rotatory cover 13 of location can be in the stable and nimble motion in the inside of installing cover 12 under the restriction of ball and thread bush 15, and then ensure that the guide duct 14 can be stably and rotate in a flexible way under the drive of windward plate 18.

The top of the positioning rotary sleeve 13 is fixedly communicated with an air guide pipe 14 positioned inside the threaded sleeve 15, the side of the top of the air guide pipe 14 is fixedly communicated with an windward housing 16, the right side of the outer surface of the windward housing 16 is fixedly provided with a positioning plate 17, the left side of the outer surface of the windward housing 16 is fixedly provided with a windward plate 18, due to the arrangement of the windward plate 18, the windward plate 18 can flexibly rotate under the driving of wind power under the limitation of the mounting sleeve 12, the positioning rotary sleeve 13 and balls on the air guide pipe 14, and the windward housing 16 can rotate to the windward side, so that the mounting frame 4 can rapidly utilize outside relatively low-temperature air.

The utility model discloses a theory of operation and use flow:

firstly, the wind group box 2 is integrally and fixedly installed in a to-be-cooled area of the dry type transformer through the fixing frame 1, then, when cooling is needed, the driving motors 5 in corresponding positions and corresponding quantity are started according to actual use conditions, the connecting shaft 6 and the transmission seat 7 can drive the spiral fan blades 8 to rotate under the driving of the driving motors 5 under the supporting action of the supporting bearings 9 and the supporting frames 10 on the connecting shaft 6, and external air can be introduced into the dry type transformer through the matching of the through holes 11, the installation sleeve 12, the air guide pipes 14 and the windward cover 16 by the rotation of the spiral fan blades 8, so that the corresponding positions in the dry type transformer can be rapidly cooled;

when the external wind direction changes, the wind force can push the windward plate 18 to rotate to the leeward side around the axis of the air guide pipe 14 under the restriction of the air guide pipe 14, and the air guide pipe 14 can stably and flexibly rotate under the cooperation of the mounting sleeve 12, the positioning rotating sleeve 13, the threaded sleeve 15 and the balls, so that the movement of the windward plate 18 can drive the windward cover 16 and the positioning plate 17 to simultaneously rotate to the windward side through the air guide pipe 14, further the wind force can uniformly flow along two sides of the air guide pipe 14 under the action of the positioning plate 17, the accidental rotation of the air guide pipe 14 is avoided, and the windward cover 16 can facilitate the spiral fan blade 8 to introduce the external low-temperature air into the dry-type transformer through the windward cover 16, the air guide pipe 14 and the wind bank box 2.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel cooling structure of dry-type transformer, includes mount (1), its characterized in that: the utility model discloses a wind group's case, including mount (1), wind group case (2), the fixed joint in front end of wind group case (2) inner chamber has protection frame (3), the bottom fixed mounting of wind group case (2) inner chamber has mounting bracket (4), the quantity of mounting bracket (4) is four, four the equal fixed mounting in upper end of mounting bracket (4) inside has driving motor (5), connecting axle (6) have been fixed to be cup jointed to the other end of driving motor (5) output shaft, the positive fixedly connected with driving seat (7) of connecting axle (6), the fixed surface of driving seat (7) has cup jointed spiral fan blade (8), the quantity of spiral fan blade (8) is four, four spiral fan blade (8) and mounting bracket (4) evenly distributed are in wind group case (2) inner chamber left end to right-hand member.

2. The cooling structure of the novel dry-type transformer according to claim 1, wherein: the outer surface of the connecting shaft (6) is fixedly sleeved with a supporting bearing (9), the outer surface of the supporting bearing (9) is fixedly sleeved with a supporting frame (10), and the outer surface of the supporting frame (10) is fixedly connected with the front end of the inner cavity of the mounting frame (4).

3. The cooling structure of the novel dry-type transformer according to claim 1, wherein: the front end at the top of the wind set box (2) is provided with a through hole (11) in front of the mounting frame (4), and the top of the wind set box (2) is fixedly connected with a mounting sleeve (12) which is positioned at the top of the through hole (11).

4. The cooling structure of the novel dry-type transformer according to claim 3, characterized in that: the inner wall of the through hole (11) is smooth, and the through hole (11) is communicated with the inner wall of the mounting sleeve (12).

5. The cooling structure of the novel dry-type transformer according to claim 3, wherein: the inside activity of installation cover (12) has cup jointed location rotary sleeve (13), the top swing joint of location rotary sleeve (13) has thread bush (15), the side of thread bush (15) inner chamber cup joints with the surface screw thread of installation cover (12), the upper and lower both ends of location rotary sleeve (13) respectively with installation cover (12) and thread bush (15) between equal movable joint have the ball.

6. The cooling structure of the novel dry-type transformer according to claim 5, wherein: the top of the positioning rotating sleeve (13) is fixedly communicated with an air guide pipe (14) located inside the threaded sleeve (15), the side face of the top of the air guide pipe (14) is fixedly communicated with an air-facing cover (16), a positioning plate (17) is fixedly installed on the right side of the outer surface of the air-facing cover (16), and an air-facing plate (18) is fixedly installed on the left side of the outer surface of the air-facing cover (16).