Air-cooled epoxy resin pouring dry-type transformer

Abstract

The utility model discloses an air-cooled epoxy resin pouring dry-type transformer, and relates to the technical field of transformers. The transformer comprises a transformer body, equipment boxes are detachably installed on the two sides of the transformer body, air cooling mechanisms are arranged in the equipment boxes, and disassembling and assembling mechanisms are arranged between the equipment boxes and the transformer body. The air cooling mechanism comprises a plurality of fans, air inlet grooves are formed in the two sides of a shell of the transformer body, and the fans correspond to the air inlet grooves; according to the utility model, the fan is started, the rotating shaft is driven to rotate, the rotating shaft enables the fan to revolve through the connecting sleeve and the connecting rod, and the angle of the fan is adjusted, so that the fan corresponds to a high-temperature part of the transformer body, and therefore, air-cooled heat dissipation and cooling of the transformer body are conveniently realized; and the angle of the fan is adjusted in the air-cooling heat dissipation cooling process, so that the heat dissipation effect of the transformer body is effectively improved, and meanwhile, the operation efficiency of the transformer body is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to an air-cooled epoxy resin cast dry-type transformer. Background Art

[0002] Epoxy resin cast dry-type transformer uses epoxy resin as insulation material. High and low voltage windings are wound with copper strips (foils). Epoxy resin is cast and cured in a vacuum to form a high-strength fiberglass structure. Epoxy resin cast dry-type transformer has the characteristics of good electrical performance, strong lightning impact resistance, strong short-circuit resistance, small size and light weight. A temperature display controller can be installed to display and control the operating temperature of the transformer winding to ensure the normal service life of the transformer.

[0003] However, the epoxy resin cast dry-type transformer in the prior art still has some defects:

[0004] Most of the epoxy resin cast dry-type transformers in the prior art dissipate heat and cool down by assembling heat dissipation fins. Since the heat dissipation fins will be saturated during the heat conduction process, it is impossible to continuously dissipate heat for the components on the epoxy resin cast dry-type transformer in a timely manner, resulting in poor heat dissipation effect of the epoxy resin cast dry-type transformer. Utility Model Content

[0005] In order to solve the problem that the heat dissipation effect of the heat dissipation fins assembled on the epoxy resin cast dry-type transformer is poor; the purpose of the utility model is to provide an air-cooled epoxy resin cast dry-type transformer.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: an air-cooled epoxy resin cast dry-type transformer, comprising a transformer body, both sides of the transformer body are detachably mounted with equipment boxes, the interior of the equipment box is provided with an air cooling mechanism, and a disassembly mechanism is provided between the equipment box and the transformer body;

[0007] The air cooling mechanism includes a plurality of fans, air inlet slots are provided on both sides of the outer shell of the transformer body, the fans correspond to the air inlet slots, the side walls of the two equipment boxes are rotatably mounted with a plurality of evenly distributed rotating shafts, one end of the plurality of rotating shafts are fixedly mounted with connecting sleeves, the middle part of the plurality of connecting sleeves are fixedly mounted with connecting rods, one end of one of the connecting rods away from the connecting sleeve is fixedly connected to one side of a fan, the side walls of the two equipment boxes are fixedly mounted with driving motors, the driving output end of one of the driving motors is fixedly connected to one end of a rotating shaft.

[0008] Preferably, the disassembly and assembly mechanism includes a plurality of plug-in rods, and a plurality of evenly distributed plug-in holes are provided on both sides of the outer shell of the transformer body, one of the plug-in rods is in movably contact with the inner wall of an plug-in hole, and a limit shaft is movably inserted at one end of a plurality of the plug-in rods, and the outer wall of the limit shaft is in movably contact with the inner wall of the outer shell of the transformer body.

[0009] Preferably, two notches are provided on the upper and lower sides of the two equipment boxes, and one end of some of the notches is slidably provided with a movable seat, the other end of one of the plug-in rods is fixedly connected to a movable seat, the other ends of some of the notches are fixedly installed with a hollow sleeve, one end of some of the hollow sleeves are slidably installed with a movable rod, one end of one of the movable rods is fixedly connected to a movable seat, two slots are provided on some of the hollow sleeves, and two blocks are fixedly installed on the other ends of some of the movable rods, one of the blocks is slidably connected to one end of a slot, return springs are fixedly installed on the inner walls of some of the hollow sleeves, one end of one of the return springs is fixedly connected to the other end of a movable rod, cavities are provided inside some of the plug-in rods, a Z-shaped elastic member is fixedly installed on the inner wall of the cavity, and one end of the limit shaft is fixedly connected to one side of the Z-shaped elastic member.

[0010] Preferably, a push plate is fixedly installed on the upper surface of several of the movable seats, an L-shaped rod is movably inserted on several of the push plates, one end of the L-shaped rod is fixedly connected to one end of the limiting shaft, and a pressing handle is fixedly installed on the other end of several of the L-shaped rods.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, by starting the fan and driving the rotating shaft to rotate, the rotating shaft makes the fan revolve through the connecting sleeve and the connecting rod, and the angle of the fan is adjusted so that the fan corresponds to the parts with higher temperature of the transformer body, thereby conveniently realizing the air cooling and heat dissipation of the transformer body, and adjusting the angle of the fan during the air cooling and heat dissipation process, thereby effectively improving the heat dissipation effect of the transformer body, and effectively improving the operating efficiency of the transformer body;

[0013] 2. In the utility model, by allowing the limit shaft to enter the cavity, releasing the limit of the plug-in rod, pulling the push seat horizontally, and moving the push seat to disengage the plug-in rod from the plug-in hole, the equipment box and the air cooling mechanism can be separated from the transformer body, thereby conveniently realizing the disassembly of the equipment box and the air cooling mechanism, and making it easier for operators to clean or maintain the equipment in the air cooling mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 The utility model is a schematic diagram of the overall structure of an air-cooled epoxy resin cast dry-type transformer.

[0016] Figure 2 For this utility model Figure 1 A magnified schematic diagram of part A in FIG.

[0017] Figure 3 It is a schematic diagram of the connection structure between the air cooling mechanism and the disassembly and assembly mechanism and the equipment box of the utility model.

[0018] Figure 4 For this utility model Figure 3 An enlarged schematic diagram of part B in FIG.

[0019] Figure 5 It is a schematic diagram of the cutaway structure of the equipment box of the utility model.

[0020] Figure 6 It is a cross-sectional schematic diagram of the hollow sleeve, the plug-in rod, the movable seat and the push plate of the utility model.

[0021] In the figure: 1. transformer body; 2. equipment box; 3. air cooling mechanism; 31. fan; 32. rotating shaft; 33. connecting sleeve; 34. connecting rod; 35. driving motor; 36. fixing block; 37. dust screen; 38. plug-in slot; 39. ventilation slot; 4. disassembly and assembly mechanism; 41. plug-in rod; 42. plug-in hole; 43. limit shaft; 44. notch; 45. moving seat; 46. pushing plate; 47. hollow sleeve; 48. movable rod; 49. card slot; 5. card block; 51. reset spring; 52. cavity; 53. Z-shaped elastic member; 54. L-shaped rod; 55. pressing handle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example: Figure 1-6As shown, the utility model provides an air-cooled epoxy resin cast dry-type transformer, including a transformer body 1, which is composed of high and low voltage windings, an iron core and a shell. This is a prior art and will not be described in detail here. Both sides of the transformer body 1 can be detachably installed with an equipment box 2, and an air cooling mechanism 3 is provided inside the equipment box 2. A disassembly mechanism 4 is provided between the equipment box 2 and the transformer body 1;

[0024] The air cooling mechanism 3 includes a plurality of fans 31. Air inlet slots are provided on both sides of the shell of the transformer body 1. The fans 31 correspond to the air inlet slots. The side walls of the two equipment boxes 2 are rotatably installed with a plurality of rotating shafts 32 evenly distributed. A connecting sleeve 33 is fixedly installed at one end of the plurality of rotating shafts 32. A connecting rod 34 is fixedly installed in the middle of the plurality of connecting sleeves 33. One end of one connecting rod 34 away from the connecting sleeve 33 is fixedly connected to one side of a fan 31. The side walls of the two equipment boxes 2 are fixedly provided with a driving motor 35. A driving output end of one driving motor 35 is fixedly connected to one end of a rotating shaft 32. By setting the air cooling mechanism 3, the air cooling mechanism 3 can perform air cooling and heat dissipation on the transformer body 1. At the same time, according to the temperature rise of the transformer body 1, the transformer body 1 can be cooled and cooled at different positions, thereby improving the heat dissipation and cooling effect of the transformer body 1, and then improving the operating efficiency of the transformer body 1. By setting the disassembly and assembly mechanism 4, the disassembly and assembly mechanism 4 facilitates the disassembly and installation of the equipment box 2, thereby facilitating the maintenance of the equipment in the air cooling mechanism 3 by the operating personnel.

[0025] The outer walls of several driving motors 35 are fixedly installed with fixing blocks 36, one end of the fixing blocks 36 is fixedly connected to the side wall of the equipment box 2, and by setting the fixing blocks 36, the fixing blocks 36 can support and fix the driving motors 35, thereby improving the stability of the driving motors 35.

[0026] A dustproof net 37 can be detachably installed on one side of both equipment boxes 2. By setting the dustproof net 37, external air can enter the equipment box 2 through the dustproof net 37, thereby improving the operating efficiency of the fan 31 and preventing dust from entering the equipment box 2.

[0027] One side of the two equipment boxes 2 is provided with a plug-in slot 38 , in which a dust screen 37 and an inner wall of the plug-in slot 38 are movably plugged in. The plug-in slot 38 is provided to facilitate operators to disassemble and clean the dust screen 37 .

[0028] A number of ventilation slots 39 are evenly distributed on the upper and lower surfaces of the two equipment boxes 2. By providing the ventilation slots 39, high airflow is avoided in the equipment boxes 2, and the air in the equipment boxes 2 can circulate with the external air through the ventilation slots 39.

[0029] The disassembly and assembly mechanism 4 includes a plurality of plug-in rods 41. A plurality of evenly distributed plug-in holes 42 are provided on both sides of the outer shell of the transformer body 1. One plug-in rod 41 and the inner wall of the plug-in hole 42 are in movably contact with each other. A limiting shaft 43 is movably inserted at one end of each of the plug-in rods 41. The outer wall of the limiting shaft 43 is in movably contact with the inner wall of the outer shell of the transformer body 1. By arranging the plug-in rod 41, the plug-in hole 42 and the limiting shaft 43, when the plug-in rod 41 is horizontally inserted into the inside of the plug-in hole 42, the interface realizes the connection between the equipment box 2 and the transformer body 1. At the same time, the limiting shaft 43 can limit the plug-in rod 41, so that the plug-in rod 41 is fixed on the outer shell of the transformer body 1.

[0030] Two notches 44 are provided on the upper and lower surfaces of the two equipment boxes 2, and one end of some of the notches 44 is slidably provided with a movable seat 45, the other end of one of the plug-in rods 41 is fixedly connected to the movable seat 45, the other end of some of the notches 44 is fixedly installed with a hollow sleeve 47, one end of some of the hollow sleeves 47 is slidably installed with a movable rod 48, one end of one of the movable rods 48 is fixedly connected to the movable seat 45, two card slots 49 are provided on some of the hollow sleeves 47, and two card blocks 5 are fixedly installed on the other end of some of the movable rods 48, one card block 5 is slidably connected to one end of a card slot 49, the inner wall of some of the hollow sleeves 47 is fixedly installed with a return spring 51, one end of one of the return springs 51 is fixedly connected to the other end of a movable rod 48, a cavity 52 is provided inside some of the plug-in rods 41, a Z-shaped elastic member 53 is fixedly installed on the inner wall of the cavity 52, one end of the limit shaft 43 and the Z-shaped elastic member One side of 53 is fixedly connected, and by setting a movable seat 45, when the movable seat 45 moves horizontally, the movable seat 45 can make the plug-in rod 41 move horizontally. By setting a hollow sleeve 47 and a movable rod 48, when the movable rod 48 moves horizontally in the hollow sleeve 47, the movable rod 48 can make the plug-in rod 41 move horizontally through the movable seat 45. By setting a slot 49 and a block 5, the block 5 can slide horizontally along the inner wall of the slot 49, so that the movable rod 48 keeps moving horizontally. By setting a reset spring 51, when the reset spring 51 contracts, the movable rod 48 can be moved horizontally to the inside of the hollow sleeve 47. When the reset spring 51 stretches and resets, it can push the movable rod 48 to move horizontally in the opposite direction and reset. By setting a cavity 52 and a Z-shaped elastic member 53, when the Z-shaped elastic member 53 contracts and moves downward in the cavity 52, the Z-shaped elastic member 53 can make the limit shaft 43 drop into the cavity 52, so that the limit of the plug-in rod 41 can be released.

[0031] A pushing plate 46 is fixedly installed on the upper surface of several moving seats 45, and an L-shaped rod 54 is movably inserted on several pushing plates 46. One end of the L-shaped rod 54 is fixedly connected to one end of the limiting shaft 43, and a pressing handle 55 is fixedly installed on the other end of several L-shaped rods 54. By setting the pushing plate 46, it is convenient for the operator to push the moving seat 45 to move horizontally. By setting the L-shaped rod 54 and the pressing handle 55, when the operator presses the pressing handle 55 downward, the pressing handle 55 can make the limiting shaft 43 drop into the cavity 52 through the L-shaped rod 54, and the drop of the limiting shaft 43 can cause the Z-shaped elastic member 53 to contract.

[0032] During the operation of the transformer body 1, the operator turns on multiple drive motors 35 and multiple fans 31, and the transformer body 1 is cooled and cooled during the rotation of the multiple fans 31. At the same time, the multiple drive motors 35 drive the multiple rotating shafts 32 to rotate, and the multiple rotating shafts 32 rotate with the axis of the corresponding rotating shaft 32 as the center through the corresponding connecting sleeves 33 and connecting rods 34. The angles of the multiple fans 31 are adjusted so that the multiple fans 31 correspond to the parts of the transformer body 1 with higher temperatures, thereby conveniently realizing the air-cooling and cooling of the transformer body 1, and adjusting the angle of the fan 31 during the air-cooling and cooling process, thereby effectively improving the heat dissipation effect of the transformer body 1, and at the same time effectively improving the operation efficiency of the transformer body 1;

[0033] When the air cooling mechanism 3 needs to be maintained, the operator first presses the pressing handle 55, and the pressing handle 55 causes the limiting shaft 43 to drop into the cavity 52 through the L-shaped rod 54. The limiting shaft 43 causes the Z-shaped elastic member 53 to contract, and then the pushing plate 46 is pulled horizontally toward the side away from the transformer body 1. The pushing plate 46 causes the plug-in rod 41 to move horizontally synchronously through the moving seat 45 until the plug-in rod 41 is disengaged from the plug-in hole 42. At this time, the equipment box 2 is disengaged from the transformer body 1, thereby facilitating the disassembly of the equipment box 2 and the air cooling mechanism 3, and making it easier for the operator to clean or maintain the equipment in the air cooling mechanism 3.

[0034] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An air-cooled epoxy resin cast dry-type transformer, comprising a transformer body (1), characterized in that: Equipment boxes (2) are detachably mounted on both sides of the transformer body (1); an air cooling mechanism (3) is provided inside the equipment box (2); and a disassembly and assembly mechanism (4) is provided between the equipment box (2) and the transformer body (1); The air cooling mechanism (3) comprises a plurality of fans (31), both sides of the outer shell of the transformer body (1) are provided with air inlet slots, the fans (31) correspond to the air inlet slots, the side walls of the two equipment boxes (2) are rotatably mounted with a plurality of evenly distributed rotating shafts (32), one end of the plurality of rotating shafts (32) are fixedly mounted with connecting sleeves (33), the middle parts of the plurality of connecting sleeves (33) are fixedly mounted with connecting rods (34), one end of one of the connecting rods (34) away from the connecting sleeve (33) is fixedly connected to one side of a fan (31), and the side walls of the two equipment boxes (2) are fixedly mounted with driving motors (35), the driving output end of one of the driving motors (35) is fixedly connected to one end of a rotating shaft (32).

2. The air-cooled epoxy resin cast dry-type transformer according to claim 1, characterized in that: A fixing block (36) is fixedly mounted on the outer walls of the plurality of driving motors (35), and one end of the fixing block (36) is fixedly connected to the side wall of the equipment box (2).

3. The air-cooled epoxy resin cast dry-type transformer according to claim 1, characterized in that: A dustproof net (37) is detachably mounted on one side of the two equipment boxes (2).

4. The air-cooled epoxy resin cast dry-type transformer according to claim 3, characterized in that: A plug-in slot (38) is provided on one side of the two equipment boxes (2), wherein one of the dustproof screens (37) and an inner wall of the plug-in slot (38) are movably plugged in.

5. The air-cooled epoxy resin cast dry-type transformer according to claim 1, characterized in that: A plurality of ventilation slots (39) are evenly distributed on the upper and lower surfaces of the two equipment boxes (2).

6. The air-cooled epoxy resin cast dry-type transformer according to claim 1, characterized in that: The disassembly and assembly mechanism (4) comprises a plurality of plug-in rods (41), and a plurality of evenly distributed plug-in holes (42) are provided on both sides of the outer shell of the transformer body (1), wherein one of the plug-in rods (41) and an inner wall of an plug-in hole (42) are in movable contact, and a limiting shaft (43) is movably inserted at one end of the plurality of plug-in rods (41), and an outer wall of the limiting shaft (43) is in movable contact with an inner wall of the outer shell of the transformer body (1).

7. An air-cooled epoxy resin cast dry-type transformer as claimed in claim 6, characterized in that: Two notches (44) are provided on the upper and lower surfaces of the two equipment boxes (2); one end of several notches (44) is slidably provided with a movable seat (45); the other end of one of the plug-in rods (41) is fixedly connected to a movable seat (45); the other end of several notches (44) is fixedly installed with a hollow sleeve (47); one end of several hollow sleeves (47) is slidably installed with a movable rod (48); one end of one of the movable rods (48) is fixedly connected to a movable seat (45); two card slots (49) are provided on several hollow sleeves (47); The other end of the movable rod (48) is fixedly mounted with two clamping blocks (5), one of which is slidably connected to one end of a clamping slot (49), the inner walls of several hollow sleeves (47) are fixedly mounted with return springs (51), one end of which is fixedly connected to the other end of a movable rod (48), several plug-in rods (41) are provided with cavities (52) inside, the inner wall of the cavities (52) is fixedly mounted with Z-shaped elastic members (53), and one end of the limiting shaft (43) is fixedly connected to one side of the Z-shaped elastic member (53).

8. The air-cooled epoxy resin cast dry-type transformer according to claim 7, characterized in that: A push plate (46) is fixedly mounted on the upper surface of the plurality of movable seats (45), an L-shaped rod (54) is movably inserted on the plurality of push plates (46), one end of the L-shaped rod (54) is fixedly connected to one end of the limit shaft (43), and a pressing handle (55) is fixedly mounted on the other end of the plurality of L-shaped rods (54).

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