Three-dimensional roll iron core resin pouring dry-type transformer

Abstract

The utility model provides a three-dimensional roll iron core resin casting dry-type transformer relates to dry-type transformer technical field, including outer jacket, inner partition frame and coil, outer jacket inner center is equipped with inner partition frame, outer jacket bottom is equipped with bottom plate, outer jacket top is equipped with top plate, and top seat is provided above top plate, is equipped with the coil. The bottom plate and the top plate are each provided with three sets of positioning holes, the upper set of positioning holes and the lower set of positioning holes are aligned, a coil is installed between the upper set of positioning holes and the lower set of positioning holes, the center of the coil is sleeved with an iron core rod, and the upper end and the lower end of the iron core rod are arranged in the positioning holes in the upper side and the lower side in a sleeved mode respectively. And an outer side plate is arranged on the outer side of the outer jacket. According to the utility model, the installation is stable and firm, large-area air cooling heat dissipation is facilitated, rapid cooling is facilitated, the internal coils are installed separately, tightly and firmly, mutual interference is avoided, and the use is safer and trustworthy.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-type transformers, in particular to a three-dimensional wound core resin cast dry-type transformer. Background Art

[0002] At present, for the planar laminated core resin-insulated dry-type transformers on the market, although they have the characteristics of moisture-proof, anti-corrosion, short-circuit resistance, and impact resistance, their no-load performance and noise level are lower than those of three-dimensional wound cores. The resin-insulated dry-type transformer has the characteristics of low no-load current, material saving, energy saving, and extremely low noise, and at the same time has the characteristics of moisture-proof, anti-corrosion, short-circuit resistance, and impact resistance, and is a new type of energy-saving product.

[0003] In the prior art (publication number CN201259817) of the three-dimensional wound core resin-insulated dry-type transformer, it is mentioned that "the upper clamping piece and the lower clamping piece are welded by steel to form a generally triangular frame, the upper clamping piece and the lower clamping piece are connected by at least three compression screws, the upper clamping piece and the lower clamping piece are internally provided with positioning frames in the shape of triangles with sides parallel to the frame sides relatively, pressure plates are correspondingly arranged on the outer sides of the frame sides of the upper clamping piece and the lower clamping piece, the yokes at both ends of the three-dimensional wound core are arranged between the positioning frames and the triangular frame, and the upper and lower ends of the coil are respectively pressed and fixed by the pressure plates and pressure nails on the upper clamping piece and the lower clamping piece", but the upper clamping piece, the lower clamping piece and the frame surface therebetween in the prior art are tightly fixed, it is not easy to quickly cool the inner coil by air cooling, and the inner coil is not placed tightly and stably. Summary of the Utility Model

[0004] In order to overcome the defects existing in the prior art, the utility model provides a three-dimensional wound core resin cast dry-type transformer to solve the problems that the upper clamping piece, the lower clamping piece and the frame surface therebetween in the prior art are tightly fixed, it is not easy to quickly cool the inner coil by air cooling, and the inner coil is not placed tightly and stably.

[0005] To achieve the above object, the utility model provides a three-dimensional wound core resin cast dry-type transformer, including an outer jacket, an inner partition frame and a coil. An inner partition frame is installed in the center of the outer jacket. A bottom plate is arranged at the bottom of the outer jacket, a top plate is arranged at the top of the outer jacket, and a top seat is arranged above the top plate. Three groups of positioning holes are arranged on both the bottom plate and the top plate, and the upper and lower groups of positioning holes are arranged in alignment. A coil is installed between the upper and lower groups of aligned positioning holes, and a core rod is sleeved in the center of the coil. The upper and lower ends of the core rod are respectively sleeved in the positioning holes on the upper and lower sides.

[0006] Furthermore, an outer side plate is arranged on the outer side of the outer jacket, a heat dissipation frame is arranged inside the outer side plate, and a plurality of heat dissipation fans are installed on the heat dissipation frame.

[0007] Further, a side sleeve plate is provided between the outer side plate and an adjacent set of outer side plates. The inner side surface of the side sleeve plate adopts a smooth arc surface structure, and the inner side surface of the side sleeve plate is arranged in close contact with the coil. The side sleeve plate is made of epoxy resin material.

[0008] Further, a support seat is provided on the lower end surface of the bottom plate, and the bottom plate and the top plate are parallel to each other up and down. An insulating top cover is provided on the top plate, and multiple sets of terminal blocks are provided on the outer side surface of the insulating top cover.

[0009] Further, a central column is provided at the center of the inner partition frame. Three sets of partition plates are fixed outside the central column. An inner cushion layer is provided on one side surface of two adjacent partition plates. The inner cushion layer is made of silicone rubber material.

[0010] Further, a protective net is provided in the middle of the top seat, and an upper support rod is provided on the lower end surface of the top seat. The lower end of the upper support rod is fixed on the top plate.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, the structure of the outer jacket is firm and stable, which is convenient for stable support. Moreover, the coil can be conveniently vertically sleeved into the outer jacket and can also be conveniently disassembled. It is more convenient and labor-saving. At the same time, heat dissipation fans and heat dissipation frames are provided on the three sets of outer side plates of the outer jacket to evacuate heat outwards over a large area, and the cooling is faster and more convenient.

[0013] 2. In the present utility model, the inner partition frame is conveniently installed between the three sets of outer side plates. On the one hand, it makes the installation of the three sets of outer side plates more tightly and reliably, so as to avoid shaking and loosening. On the other hand, it avoids the mutual interference of the coils on the three sets of outer side plates, and the separation is safer and more reliable.

[0014] 3. In the present utility model, the top seat is provided to prevent bird pecking and falling stone collision after being installed outdoors, which is safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view schematic diagram of the embodiment of the present utility model;

[0016] Figure 2 is the sectional view schematic diagram of the embodiment of the present utility model;

[0017] Figure 3 is the outer jacket schematic diagram of the embodiment of the present utility model;

[0018] Figure 4 is the inner partition frame schematic diagram of the embodiment of the present utility model.

[0019] In the figure: 1. Outer jacket; 10. Outer side plate; 11. Cooling fan; 12. Positioning hole; 13. Side sleeve plate; 14. Cooling frame; 15. Bottom plate; 16. Top plate; 17. Support seat; 18. Insulating top cover; 19. Terminal block; 2. Inner partition frame; 20. Partition plate; 21. Inner cushion layer; 22. Central column; 3. Coil; 30. Iron core rod; 4. Top seat; 40. Upper support rod; 41. Protection net. Detailed implementation manners

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Specific details such as specific system structures and technologies are proposed to more thoroughly understand the embodiments of the present utility model. The described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. However, those skilled in the art should clearly understand that the present utility model can also be implemented in other embodiments without these specific details. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present disclosure.

[0021] The following will describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings.

[0022] Figure 1 is the front view schematic diagram of the embodiment of the present utility model, Figure 2 is the cross-sectional schematic diagram of the embodiment of the present utility model, Figure 3 is the schematic diagram of the outer jacket of the embodiment of the present utility model and Figure 4 is the schematic diagram of the inner partition frame of the embodiment of the present utility model.

[0023] Referring to Figures 1 to 4 as shown, the present utility model provides a three-dimensional wound core resin cast dry-type transformer, including an outer jacket 1, an inner partition frame 2 and a coil 3. A bottom plate 15 is provided at the bottom of the outer jacket 1, a top plate 16 is provided at the top of the outer jacket 1, and a top seat 4 is provided above the top plate 16. Three groups of positioning holes 12 are provided on both the bottom plate 15 and the top plate 16, and the upper and lower groups of positioning holes 12 are arranged in alignment. A coil 3 is installed between the upper and lower groups of aligned positioning holes 12, and an iron core rod 30 is sleeved in the center of the coil 3. The upper and lower ends of the iron core rod 30 are respectively sleeved in the positioning holes 12 on the upper and lower sides.

[0024] In this embodiment, an outer plate 10 is provided on the outer side of the outer jacket 1, a heat dissipation frame 14 is provided inside the outer plate 10, and a plurality of heat dissipation fans 11 are installed on the heat dissipation frame 14; a side sleeve plate 13 is provided between the outer plate 10 and an adjacent outer plate 10, and the inner side surface of the side sleeve plate 13 adopts a smooth arc surface structure, and the inner side surface of the side sleeve plate 13 is arranged in close contact with the coil 3; a support seat 17 is provided on the lower end surface of the bottom plate 15, and the bottom plate 15 and the top plate 16 are parallel to each other up and down.

[0025] As a preferred embodiment, the structure of the outer jacket 1 in the present utility model is firmly and stably arranged, which is convenient for stable support, and the coil 3 is convenient to be vertically sleeved into the outer jacket 1 and is also convenient for disassembly, which is more convenient and labor-saving. At the same time, heat dissipation fans 11 and heat dissipation frames 14 are arranged on the three outer plates 10 of the outer jacket 1 to evacuate heat outwards over a large area, and the cooling is faster and more convenient.

[0026] In this embodiment, a central column 22 is provided at the center of the inner partition frame 2, three partition plates 20 are fixed outside the central column 22, an inner cushion layer 21 is provided on one side surface of two adjacent partition plates 20, and the inner cushion layer 21 is made of silicone rubber material.

[0027] As a preferred embodiment, the inner partition frame 2 in the present utility model is conveniently installed between the three outer plates 10. On the one hand, the three outer plates 10 are installed more tightly and reliably to prevent shaking and loosening, and on the other hand, the coils on the three outer plates 10 are prevented from interfering with each other, and the separation is safer and more reliable.

[0028] In this embodiment, a protective net 41 is provided in the middle of the top seat 4, an upper support rod 40 is provided on the lower end surface of the top seat 4, and the lower end of the upper support rod 40 is fixed on the top plate 16.

[0029] As a preferred embodiment, the top seat 4 in the present utility model is provided to prevent bird pecking and falling stone collision after being installed outdoors, which is safer and more reliable.

[0030] The present utility model can effectively solve the problems in the prior art that the upper clamping member and the lower clamping member and the frame surface therebetween are tightly fixed, it is not easy to quickly cool the inner coil by air cooling, and the internal coils are not placed tightly and stably. The present utility model is stably and firmly installed, convenient for large-area air-cooled heat dissipation, helpful for rapid cooling, and the internal coils are separately installed tightly and firmly and avoid interfering with each other, and it is safer and more reassuring to use.

[0031] The above embodiments are used to explain the present utility model, rather than to limit the utility model. Any modification and change made to the present utility model within the spirit of the present utility model and the scope of the claimed rights should be included in the protection scope of the present utility model.

Claims

1. A three-dimensional wound core resin cast dry-type transformer, characterized in that: The invention comprises an outer jacket (1), an inner partition frame (2) and a coil (3), wherein the inner partition frame (2) is installed at the center of the outer jacket (1), a bottom plate (15) is arranged at the bottom of the outer jacket (1), a top plate (16) is arranged at the top of the outer jacket (1), and a top seat (4) is arranged above the top plate (16), three groups of positioning holes (12) are arranged on the bottom plate (15) and the top plate (16), and the upper and lower groups of positioning holes (12) are arranged in alignment, and the coil (3) is installed between the upper and lower groups of aligned positioning holes (12), and an iron core rod (30) is sleeved at the center of the coil (3), and the upper and lower ends of the iron core rod (30) are respectively sleeved in the positioning holes (12) on the upper and lower sides.

2. A three-dimensional wound core resin cast dry-type transformer according to claim 1, characterized in that: An outer plate (10) is arranged on the outer side of the outer jacket (1), a heat dissipation frame (14) is arranged inside the outer plate (10), and a plurality of groups of heat dissipation fans (11) are installed on the heat dissipation frame (14).

3. A three-dimensional wound core resin cast dry-type transformer according to claim 2, characterized in that: A side sleeve plate (13) is arranged between the outer plate (10) and an adjacent group of outer plates (10), and the inner side surface of the side sleeve plate (13) adopts a smooth arc surface structure, and the inner side surface of the side sleeve plate (13) is arranged in close contact with the coil (3), and the side sleeve plate (13) is made of epoxy resin.

4. The three-dimensional wound core resin cast dry-type transformer according to claim 1, characterized in that: A support seat (17) is provided on the lower end surface of the bottom plate (15), and the bottom plate (15) and the top plate (16) are parallel to each other in the vertical direction. An insulating top cover (18) is provided on the top plate (16), and a plurality of groups of connection terminals (19) are provided on the outer side surface of the insulating top cover (18).

5. The three-dimensional wound core resin cast dry-type transformer according to claim 1, characterized in that: A central column (22) is arranged at the center of the inner partition frame (2), and three groups of partition plates (20) are fixed outside the central column (22), and an inner cushion layer (21) is arranged on one side surface of two connected groups of partition plates (20), and the inner cushion layer (21) is made of silicone rubber.

6. The three-dimensional wound core resin cast dry-type transformer according to claim 1, characterized in that: A protective net (41) is provided in the middle of the top seat (4), and an upper support rod (40) is provided on the lower end surface of the top seat (4), and the lower end of the upper support rod (40) is fixed on the top plate (16).

Images