Double-iron-core high-impedance dry-type energy storage transformer

Through the design of the main core of the cross-layer structure and the sub core of the multi-cake core stacked structure, combined with air-cooled and water-cooled components, the problem of space and cost of U-shaped upper pressure plate and screw in the dry transformer is solved, and efficient heat dissipation is achieved and cost savings.

CN222168109UActive Publication Date: 2024-12-13GUANGDONG NRE TECH CO LTD +1
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Patent Information

Application Number
CN202323670588.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-29
Publication Date
2024-12-13
Estimated Expiration
2033-12-29

AI Technical Summary

Technical Problem

In the existing dry transformers, the U-shaped upper pressure plates provided on the main core and the secondary core occupy the client chassis size and the cost is not optimized.

Method used

The main core with a cross-laminated structure and the sub core with a multi-cake core are combined with air-cooled components and water-cooled components. By tightening components and conductive rows, the U-shaped upper pressure plate and screw of the main core are eliminated, saving Space and materials, while improving heat dissipation.

Benefits of technology

It realizes that the heat dissipation capacity of the transformer is improved without increasing the chassis size and cost, avoiding damage caused by excessive temperature and reducing production costs.

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Abstract

The utility model relates to the technical field of transformers, and provides a double-iron-core high-impedance dry-type energy storage transformer which comprises a coil and a main iron core, the coil is wound on the main iron core, and two first upper supporting parts and two first lower supporting parts are fixedly installed on the two sides of the main iron core respectively. The first upper supporting part and the first lower supporting part are located on the upper side and the lower side of the coil, an auxiliary iron core is arranged on one side of the main iron core, the auxiliary iron core is of a multi-cake iron core stacked structure and installed in the coil, and two second upper supporting parts and two second lower supporting parts are fixedly installed on the two sides of the auxiliary iron core correspondingly. The second upper supporting part and the second lower supporting part are located on the upper side and the lower side of the coil, a tensioning assembly is arranged on one side of the second upper supporting part, and the main iron core of a crossed lamination structure, the auxiliary iron core of a multi-cake iron core laminated structure and the auxiliary iron core upper pressing plate are arranged, so that the cost of a U-shaped upper pressing plate of the main iron core and four screws of the main iron core can be saved; and the height space can be saved.
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Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a double-core high-impedance dry-type energy storage transformer. Background Art

[0002] Dry-type transformers are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery and equipment and other places. Simply put, a dry-type transformer refers to a transformer whose core and winding are not immersed in insulating oil.

[0003] At present, since the U-shaped upper pressure plates on the main core and the auxiliary core of the transformer will occupy the client chassis size, and there are four screws on the main core for tightening, the cost is not optimal. Therefore, a double-core high-impedance dry energy storage transformer is needed. Utility Model Content

[0004] The utility model proposes a double-core high-impedance dry-type energy storage transformer, which solves the problem in the related art that the U-shaped upper pressure plates respectively provided on the main core and the auxiliary core of the transformer will occupy the size of the client chassis, and there are four screws on the main core for tightening, which is not optimal in terms of cost.

[0005] The technical solution of the utility model is as follows: a double-core high-impedance dry-type energy storage transformer, comprising a coil and a main core, wherein the coil is wound and installed on the main core, the main core is a cross-laminated structure, and two first upper supporting parts and a first lower supporting part are fixedly installed on both sides of the main core, respectively, and the first upper supporting part and the first lower supporting part are located on the upper and lower sides of the coil;

[0006] A secondary core is provided on one side of the main core, the secondary core is a multi-cake core stacked structure, and the secondary core is installed in the coil, and two second upper supporting parts and a second lower supporting part are fixedly installed on both sides of the secondary core, and the second upper supporting part and the second lower supporting part are located on the upper and lower sides of the coil;

[0007] A tensioning assembly is provided on one side of the second upper support portion, and the second lower support portion is fixedly connected to the second upper support portion through the tensioning assembly;

[0008] Two bases are fixedly installed at the bottom of the main core, an air cooling assembly is arranged between the two bases, a water cooling assembly is arranged above the air cooling assembly, and the water cooling assembly is in contact with the bottom of the main core and the auxiliary core.

[0009] Preferably, the tensioning assembly includes two first fixing blocks fixedly mounted on one side of the second upper support portion, two second fixing blocks fixedly mounted on one side of the second lower support portion, a secondary iron screw is inserted into the first fixing block and the second fixing block, and a nut is threadedly connected to the outer wall of the secondary iron screw

[0010] Preferably, a plurality of conductive bars are provided on the coil, and a circular opening is formed on the conductive bars.

[0011] Preferably, the air cooling assembly includes a fixing plate arranged between the two bases, and a plurality of heat dissipation fans are installed through the fixing plate.

[0012] Preferably, a T-shaped plate is fixedly mounted on one side of the two bases, two positioning plates are fixedly mounted on both sides of the fixed plate, and the fixed plate is respectively plugged into the T-shaped plate and the base through the positioning plates.

[0013] Preferably, the T-shaped plate and the positioning plate are both provided with a plurality of screw holes, and the positioning plate and the T-shaped plate are fastened and fixed by bolts through the screw holes.

[0014] Preferably, the water cooling assembly comprises a fixing frame arranged above the fixing plate, a plurality of heat conducting pipes are fixedly mounted on the inner side of the fixing frame, and the interior of the heat conducting pipes is filled with cooling liquid.

[0015] Preferably, a plurality of inverted T-rods are provided through the fixed plate, and the plurality of inverted T-rods are movably connected to the fixed plate, the top of the inverted T-rod is fixedly connected to the fixed frame, a spring is provided on the outer wall of the inverted T-rod, and the spring is located between the air cooling component and the water cooling component.

[0016] Preferably, an auxiliary iron core upper pressure plate is provided above the auxiliary iron core, and the auxiliary iron core upper pressure plate is fixedly mounted on the second upper supporting portion.

[0017] The working principle and beneficial effects of the utility model are:

[0018] 1. By setting up a main core with a cross-laminated structure, an auxiliary core with a multi-cake core stacked structure and an auxiliary core upper pressure plate, the cost of the main core U-shaped upper pressure plate and four screws of the main core can be saved, and the height space can be saved.

[0019] 2. By setting up an air cooling component, a water cooling component, an inverted T-rod and a spring, the heat dissipation of the device can be improved, thereby preventing the device from being damaged due to excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the utility model when viewed from above;

[0024] Figure 4 This is a schematic diagram of the structure of the water cooling component of the utility model;

[0025] Figure 5 It is an enlarged structural schematic diagram of A of the utility model;

[0026] Figure 6 It is a schematic diagram of the planar structure of the main iron core of the utility model.

[0027] In the figure: 1. Coil; 2. Main iron core; 3. Auxiliary iron core; 4. First upper support part; 5. First lower support part; 6. Second upper support part; 7. Second lower support part; 8. Tensioning assembly; 81. First fixing block; 82. Second fixing block; 83. Auxiliary iron screw; 84. Nut; 9. Base; 10. Air cooling assembly; 101. Fixing plate; 102. Cooling fan; 11. Water cooling assembly; 1101. Fixing frame; 1102. Heat pipe; 12. Conductive bar; 13. T-shaped plate; 14. Positioning plate; 15. Screw hole; 16. Inverted T rod; 17. Spring; 18. Auxiliary iron core upper pressure plate. DETAILED DESCRIPTION

[0028] The following will be combined with 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 of 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.

[0029] See also Figure 1 - Figure 6 The utility model provides a technical solution for a double-core high-impedance dry-type energy storage transformer: comprising a coil 1 and a main core 2, wherein the coil 1 is wound and installed on the main core 2, the main core 2 is a cross-laminated structure, and two first upper support parts 4 and first lower support parts 5 are fixedly installed on both sides of the main core 2, respectively, and the first upper support part 4 and the first lower support part 5 are located on the upper and lower sides of the coil 1;

[0030] A secondary core 3 is provided on one side of the main core 2. The secondary core 3 is a multi-cake core stacked structure, and the secondary core 3 is installed in the coil 1. Two second upper support parts 6 and second lower support parts 7 are fixedly installed on both sides of the secondary core 3. The second upper support parts 6 and the second lower support parts 7 are located on the upper and lower sides of the coil 1.

[0031] The coil 1 is provided with a plurality of conductive bars 12, and the conductive bars 12 are provided with round openings;

[0032] An auxiliary core upper pressing plate 18 is provided above the auxiliary core 3, and the auxiliary core upper pressing plate 18 is fixedly mounted on the second upper supporting portion 6;

[0033] A tensioning assembly 8 is provided on one side of the second upper support portion 6, and the second lower support portion 7 is fixedly connected to the second upper support portion 6 via the tensioning assembly 8;

[0034] Two bases 9 are fixedly installed at the bottom of the main core 2, an air cooling assembly 10 is arranged between the two bases 9, a water cooling assembly 11 is arranged above the air cooling assembly 10, and the water cooling assembly 11 is in contact with the bottom of the main core 2 and the auxiliary core 3;

[0035] Through the cross-laminated structure of the main iron core 2, the cost of the U-shaped upper pressure plate and the four screws of the main iron core can be saved, and then the auxiliary iron core 3 is formed by stacking multiple disk cores and tightened by the tensioning component 8. At the same time, with the cooperation of the flat-plate-shaped auxiliary iron core upper pressure plate 18, it can save height space and material cost. Finally, the air-cooling component 10 and the water-cooling component 11 between the base 9 can improve the heat dissipation of the device, thereby preventing the device from being easily damaged due to excessive temperature.

[0036] In this embodiment, specifically, the tensioning assembly 8 includes two first fixing blocks 81 fixedly installed on one side of the second upper support portion 6, and two second fixing blocks 82 fixedly installed on one side of the second lower support portion 7. A secondary iron screw 83 is inserted into the first fixing block 81 and the second fixing block 82, and a nut 84 is threadedly connected to the outer wall of the secondary iron screw 83;

[0037] The second upper support portion 6 and the second lower support portion 7 can be tightened by manually inserting the auxiliary iron screw 83 on the first fixing block 81 and the second fixing block 82 and then manually threading the nut 84 on the auxiliary iron screw 83 .

[0038] In this embodiment, specifically, the air cooling assembly 10 includes a fixing plate 101 disposed between two bases 9, and a plurality of cooling fans 102 are installed through the fixing plate 101;

[0039] The cooling fan 102 installed on the fixing plate 101 can simultaneously cool the device and the water cooling assembly 11 , thereby improving the heat dissipation effect of the device and the water cooling assembly 11 .

[0040] In this embodiment, specifically, a T-shaped plate 13 is fixedly installed on one side of the two bases 9, two positioning plates 14 are fixedly installed on both sides of the fixed plate 101, and the fixed plate 101 is respectively plugged with the T-shaped plate 13 and the base 9 through the positioning plates 14, and a plurality of screw holes 15 are opened on the T-shaped plate 13 and the positioning plate 14, and the positioning plate 14 and the T-shaped plate 13 are fixed by bolts through the screw holes 15;

[0041] The positioning plates 14 on both sides of the fixing plate 101 are manually plugged into the T-shaped plates 13 on the base 9, and then the bolts are manually installed in the screw holes 15, so that the air cooling component 10 and the water cooling component 11 can be stably fixed on the device for use.

[0042] In this embodiment, specifically, the water cooling assembly 11 includes a fixing frame 1101 disposed above the fixing plate 101, a plurality of heat conducting pipes 1102 are fixedly installed on the inner side of the fixing frame 1101, and the interior of the heat conducting pipes 1102 is filled with cooling liquid;

[0043] The transformer can be water-cooled by the heat pipe 1102 inside the fixing frame 1101 and the coolant inside the heat pipe 1102 .

[0044] In this embodiment, specifically, a plurality of inverted T-rods 16 are provided through the fixed plate 101, and the plurality of inverted T-rods 16 are movably plugged with the fixed plate 101, and the top of the inverted T-rods 16 is fixedly connected with the fixed frame 1101, and a spring 17 is provided on the outer side wall of the inverted T-rods 16, and the spring 17 is located between the air cooling component 10 and the water cooling component 11;

[0045] The fixing frame 1101 is pushed by the elastic force of the spring 17, and then the fixing frame 1101 rises steadily under the action of the inverted T-bar 16 and the fixing plate 101 and contacts the bottom of the transformer, so that the fixing frame 1101 and the heat pipe 1102 can contact the transformer, thereby facilitating water cooling.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-core high-impedance dry-type energy storage transformer, comprising a coil (1) and a main core (2), characterized in that: The coil (1) is wound and mounted on the main iron core (2); the main iron core (2) is a cross-laminated structure; two first upper support parts (4) and first lower support parts (5) are respectively fixedly mounted on both sides of the main iron core (2); the first upper support part (4) and the first lower support part (5) are located on the upper and lower sides of the coil (1); A secondary iron core (3) is arranged on one side of the main iron core (2); the secondary iron core (3) is a structure of stacked multiple disk iron cores, and the secondary iron core (3) is installed in the coil (1); two second upper support parts (6) and second lower support parts (7) are respectively fixedly installed on both sides of the secondary iron core (3); the second upper support part (6) and the second lower support part (7) are located on the upper and lower sides of the coil (1); A tensioning assembly (8) is provided on one side of the second upper support portion (6), and the second lower support portion (7) is fixedly connected to the second upper support portion (6) via the tensioning assembly (8); Two bases (9) are fixedly mounted on the bottom of the main core (2); an air cooling assembly (10) is arranged between the two bases (9); a water cooling assembly (11) is arranged above the air cooling assembly (10); and the water cooling assembly (11) is in contact with the bottoms of the main core (2) and the auxiliary core (3).

2. A double-core high-impedance dry-type energy storage transformer according to claim 1, characterized in that: The tensioning assembly (8) comprises two first fixing blocks (81) fixedly mounted on one side of the second upper supporting portion (6), and two second fixing blocks (82) fixedly mounted on one side of the second lower supporting portion (7), wherein a secondary iron screw (83) is inserted into the first fixing block (81) and the second fixing block (82), and a nut (84) is threadedly connected to the outer wall of the secondary iron screw (83).

3. A double-core high-impedance dry-type energy storage transformer according to claim 1, characterized in that: A plurality of conductive bars (12) are arranged on the coil (1), and a circular opening is opened on the conductive bar (12).

4. A double-core high-impedance dry-type energy storage transformer according to claim 1, characterized in that: The air cooling component (10) comprises a fixing plate (101) arranged between the two bases (9), and a plurality of heat dissipation fans (102) are installed through the fixing plate (101).

5. A double-core high-impedance dry-type energy storage transformer according to claim 4, characterized in that: A T-shaped plate (13) is fixedly mounted on one side of the two bases (9), two positioning plates (14) are fixedly mounted on both sides of the fixing plate (101), and the fixing plate (101) is respectively plugged into the T-shaped plate (13) and the base (9) via the positioning plates (14).

6. A double-core high-impedance dry-type energy storage transformer according to claim 5, characterized in that: The T-shaped plate (13) and the positioning plate (14) are both provided with a plurality of screw holes (15), and the positioning plate (14) and the T-shaped plate (13) are fastened and fixed by bolts via the screw holes (15).

7. A double-core high-impedance dry-type energy storage transformer according to claim 5, characterized in that: The water cooling assembly (11) comprises a fixing frame (1101) arranged above the fixing plate (101), a plurality of heat conducting pipes (1102) are fixedly installed on the inner side of the fixing frame (1101), and the interior of the heat conducting pipes (1102) is filled with cooling liquid.

8. A double-core high-impedance dry-type energy storage transformer according to claim 7, characterized in that: A plurality of inverted T-rods (16) are provided through the fixed plate (101), and the plurality of inverted T-rods (16) are movably plugged into the fixed plate (101), and the top of the inverted T-rods (16) is fixedly connected to the fixed frame (1101), and a spring (17) is provided on the outer wall of the inverted T-rods (16), and the spring (17) is located between the air cooling component (10) and the water cooling component (11).

9. A double-core high-impedance dry-type energy storage transformer according to claim 1, characterized in that: An auxiliary iron core upper pressure plate (18) is arranged above the auxiliary iron core (3), and the auxiliary iron core upper pressure plate (18) is fixedly mounted on the second upper support portion (6).