Leading wire structure of lower outgoing wire for low voltage
By designing the low-voltage lead of the transformer to adopt a lower outlet structure, using the frame and lower clamp layout, and combining the lead design connected by insulators, the problem of transformer volume expansion in the prior art is solved, achieving a more compact structure and better insulation effect.
Patent Information
- Application Number
- CN202420887690.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-04-26
AI Technical Summary
The low-voltage leads of existing transformers adopt the upper outlet method, which leads to an increase in the upper end of the transformer, affecting the overall volume and usage effect. Especially in energy storage transformers, since there is a fan at the bottom of the coil, it is necessary to ensure the insulation distance between the fan and the coil, resulting in an increase in the height of the bottom end of the transformer and the volume expands.
A low-voltage lead structure is designed. A frame and a lower clamp are provided below the coil. The fan is arranged on both sides of the lower clamp. The outer low-voltage lead and the inner low-voltage lead are connected by insulators to connect it with the low-voltage coil. The lead adopts an internal bifold three-side right-angle bending design, with the same bending angle to ensure the insulation distance, and the height of the frame is raised by increasing the height of the platform to increase the insulation distance.
Through the low-voltage lead-off structure, the problem of increasing the upper end of the transformer is avoided, the process is simplified, and customer needs is met. Without increasing costs, the insulation distance between the fan and the ends of the high-voltage coil is ensured, reducing the volume and cost of the product.
Smart Images
Figure CN222762772U_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of transformer low-voltage leads, and specifically relates to a lead structure for a low-voltage bottom lead. Background Art
[0002] The energy storage boost converter cabin is a new type of energy conversion device. In recent years, with the accelerated popularization of renewable energy and the substantial penetration of new energy vehicles, its demand has continued to increase. Currently, many domestic and foreign companies are actively deploying the energy storage boost converter cabin market.
[0003] The energy storage transformer matched with the energy storage boost converter cabin is mainly used in AC power transmission system, which can realize the conversion of electric energy between different voltage levels. It has a simple structure and is widely used. When designing the power system and selecting equipment, it is necessary to comprehensively consider the performance, efficiency, cost and reliability of the boost converter cabin and transformer according to specific needs and application scenarios to achieve the best system performance and economic benefits.
[0004] like Figure 2 As shown, the low-voltage lead of a conventional transformer is led out from the top, but fans are provided on both sides of the bottom of the coil of the energy storage transformer. Since the low-voltage lead of the conventional transformer is led out from the top and connected to the clamp of the iron core, the upper end of the entire transformer will be increased. Since a fan is provided at the bottom of the coil, in order to ensure a safe insulation distance between the fan and the coil, the bottom end of the transformer itself will also be very high, which will cause the volume of the transformer itself to increase sharply, affecting the use of the transformer. Utility Model Content
[0005] In order to solve the above problems, this paper proposes a lead structure for low-voltage lower outlet, a frame is provided under the coil of the transformer, a lower clamp is provided at the center of the top surface of the frame, fans are provided on both sides of the lower clamp, a lower clamp is provided in the middle of the fan, the lower clamp is provided on the upper surface of the center of the frame, an iron core is provided in the center of the lower clamp, a bracket is provided laterally and vertically on the outer side of the axis of the lower clamp, the upper part of the bracket is connected to the low-voltage lead horizontally through an insulator, the low-voltage lead includes an outer low-voltage lead and an inner low-voltage lead, the outer low-voltage lead and the inner low-voltage are inward-folded right-angle leads parallel to each other, the surfaces of one end of the outer low-voltage lead and the inner low-voltage lead are connected to each other through an insulator, the other ends of the outer low-voltage lead and the inner low-voltage lead are connected to the low-voltage coil, breaking through the original structural design idea of the low-voltage upper outlet, reasonable layout without increasing costs, simplifying the process, and meeting the ever-changing customer needs.
[0006] The coil is a cylindrical tube coil, the outside of the coil is a high-voltage coil, and the inside of the coil is a low-voltage coil. A low-voltage lead is provided on one side of the bottom end of the low-voltage coil in a vertically parallel manner. The low-voltage lead is an inner double-folded three-sided right-angle bent lead. The adjacent surfaces of the outer low-voltage lead and the inner low-voltage lead are parallel to each other, and the bending angles of the outer low-voltage lead and the inner low-voltage lead are the same. The vertical straight edges of the outer low-voltage lead and the inner low-voltage lead are connected to the low-voltage coil in a plug-in manner. The horizontal straight edges of the outer low-voltage lead and the inner low-voltage lead are connected to each other through an insulator. The outer low-voltage lead is far away from the bottom end of the low-voltage coil, and the inner low-voltage lead is close to the bottom end of the low-voltage coil. The lower end of the outer low-voltage lead is connected to the bracket through an insulator. The outer low-voltage lead and the inner low-voltage lead are bent twice, and the bending angles of the two are the same, and the bending angles can be flexibly set according to actual conditions. The lead row cannot be directly connected and fixed to the lower clamp through the insulator, but needs to be indirectly connected and fixed to the lower clamp of the transformer by adding a bracket to ensure its mechanical stress and short-circuit resistance.
[0007] The frame is in the shape of a disc frame, with a lower clamp provided vertically at the center of the upper surface of the frame, a hanging shaft provided horizontally at the lower clamp, a raising platform provided at the bottom of the lower clamp, the height of the raising platform being half the height of the fan, a bracket provided horizontally at the outer side of the end of the hanging shaft, the bracket being an L-shaped right-angle frame, the short side of the bracket being connected to the end of the lower clamp, and the upper part of the long side of the bracket being connected to the external low-voltage lead through an insulator, the lower outlet structure of the low-voltage lead increases the consideration of the insulation distance of the low-voltage lead to the fan and the high-voltage coil end, and the insulation distance of the lead to the fan and the high-voltage coil end is ensured by raising the frame height through the raising platform without increasing the product cost.
[0008] Beneficial effects:
[0009] We have broken through the original low-voltage upper outlet structural design concept, made reasonable layout and simplified process without increasing costs, and met the ever-changing needs of customers.
[0010] The external low-voltage lead and the internal low-voltage lead have two bends, and the bending angles of the two are the same, and the bending angles can be flexibly set according to actual conditions. The lead row cannot be directly connected and fixed to the lower clamp through the insulator, but needs to be indirectly connected and fixed to the lower clamp of the transformer by adding a bracket to ensure its mechanical stress and short-circuit resistance.
[0011] The low-voltage lead-out structure increases the consideration of the insulation distance between the low-voltage lead and the fan and the high-voltage coil end. Without increasing the product cost, the frame height is raised by raising the platform to ensure the insulation distance between the lead and the fan and the high-voltage coil end. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the lead structure of the bottom outlet for low voltage;
[0013] Figure 2 It is a schematic diagram of the existing transformer low voltage upper outgoing wire lead structure;
[0014] In the figure; 1. low-voltage coil, 2. external low-voltage lead, 3. internal low-voltage lead, 4. insulator, 5. bracket, 6. frame, 7. fan, 8. lower clamp, 9. high-voltage coil. DETAILED DESCRIPTION
[0015] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.
[0016] Low-voltage coil 1, external low-voltage lead 2, internal low-voltage lead 3, insulator 4, bracket 5, frame 6, fan 7, lower clamp 8, high-voltage coil 9.
[0017] like Figure 1 As shown;
[0018] A lead structure for a low-voltage lower outlet, a frame 6 is provided below the coil of the transformer, a lower clamp 8 is provided at the center of the top surface of the frame, fans 7 are provided on both sides of the lower clamp 8, the lower clamp 8 is provided on the upper surface of the center of the frame 6, an iron core is provided at the center of the lower clamp 8, a bracket 5 is provided laterally and vertically outside the axis of the lower clamp 8, the bracket 5 is connected to the horizontal low-voltage lead through an insulator 4 above, the low-voltage lead includes an outer low-voltage lead 2 and an inner low-voltage lead 3, The outer low voltage lead 2 and the inner low voltage are parallel to each other and are bent at right angles. The bending angles of the outer low voltage lead 2 and the inner low voltage lead 3 are the same. The surfaces of one end of the outer low voltage lead 2 and the inner low voltage lead 3 are connected to each other through an insulator 4. The other ends of the outer low voltage lead 2 and the inner low voltage lead 3 are connected to the low voltage coil 1. The coil is a cylindrical coil. The outer side of the coil is a high voltage coil 9, and the inner side of the coil is a low voltage coil 1. The bottom side of the low voltage coil 1 is vertically parallel to the plug-in. The low-voltage lead wire is a three-sided right-angle bent lead wire with an inner double fold, and the adjacent surfaces of the outer low-voltage lead wire 2 and the inner low-voltage lead wire 3 are parallel to each other. The vertical straight edges of the outer low-voltage lead wire 2 and the inner low-voltage lead wire 3 are plug-in connected to the low-voltage coil 1. The horizontal straight edges of the outer low-voltage lead wire 2 and the inner low-voltage lead wire 3 are connected to each other through an insulator 4. The outer low-voltage lead wire 2 is far away from the bottom end of the low-voltage coil 1, and the inner low-voltage lead wire 3 is close to the bottom end of the low-voltage coil 1. The end of the outer low-voltage lead wire 2 is below The frame 6 is connected to the bracket 5 through an insulator 4. The frame 6 is in the shape of a disc frame. A lower clamp 8 is vertically provided at the center of the upper surface of the frame 6. The lower clamp 8 is horizontally provided with a hanging shaft. A raising platform is provided at the bottom of the lower clamp 8. The height of the raising platform is half the height of the fan 7. A bracket 5 is horizontally provided on the outer side of the end of the hanging shaft. The bracket 5 is an L-shaped right-angle frame. The short side of the bracket 5 is connected to the end of the lower clamp 8. The upper side of the long side of the bracket 5 is connected to the external low-voltage lead 2 through an insulator 4.
[0019] Implementation examples;
[0020] The outer low-voltage lead 2 and the inner low-voltage lead 3 are bent twice, and the bending angles of the two are the same. The bending angles can be flexibly set according to actual conditions. The lead row cannot be directly connected and fixed to the lower clamp 8 through the insulator 4, but needs to be indirectly connected and fixed to the lower clamp 8 of the transformer by adding a bracket 5 to ensure its mechanical stress and short-circuit resistance. The low-voltage lead lower outlet structure increases the consideration of the insulation distance between the low-voltage lead and the end of the fan 7 and the high-voltage coil 9. Without increasing the product cost, the height of the frame 6 is raised by raising the platform to ensure the insulation distance between the lead and the end of the fan 7 and the high-voltage coil 9.
[0021] The above description is only a preferred embodiment of the present invention and is 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 lead wire structure for a low voltage bottom outlet, wherein a frame is provided below the coil of the transformer, a lower clamp is provided at the center of the top surface of the frame, and fans are provided on both sides of the lower clamp, characterized in that: The lower clamp is arranged on the upper surface of the center of the frame, an iron core is arranged in the center of the lower clamp, a bracket is arranged horizontally and vertically on the outer side of the axis of the lower clamp, and the upper part of the bracket is connected to the low-voltage lead horizontally through an insulator, and the low-voltage lead includes an outer low-voltage lead and an inner low-voltage lead, and the outer low-voltage lead and the inner low-voltage are inward-folded right-angle leads parallel to each other. The surfaces of one end of the outer low-voltage lead and the inner low-voltage lead are connected to each other through an insulator, and the other ends of the outer low-voltage lead and the inner low-voltage lead are connected to the low-voltage coil.
2. A lead structure for a low voltage bottom outlet according to claim 1, characterized in that: The coil is a cylindrical coil, the outer side of the coil is a high-voltage coil, the inner side of the coil is a low-voltage coil, and a low-voltage lead is vertically and parallelly inserted on one side of the bottom end of the low-voltage coil.
3. A lead structure for a low voltage bottom outlet according to claim 1, characterized in that: The low-voltage lead is an inner double-folded three-sided right-angle bent lead, the bending angles of the outer low-voltage lead and the inner low-voltage lead are the same, the adjacent surfaces of the outer low-voltage lead and the inner low-voltage lead are parallel to each other, the vertical straight edges of the outer low-voltage lead and the inner low-voltage lead are plug-in connected to the low-voltage coil, the horizontal straight edges of the outer low-voltage lead and the inner low-voltage lead are connected to each other through insulators, the outer low-voltage lead is far away from the bottom end of the low-voltage coil, the inner low-voltage lead is close to the bottom end of the low-voltage coil, and the lower end of the outer low-voltage lead is connected to the bracket through an insulator.
4. A lead structure for a low voltage bottom outlet according to claim 1, characterized in that: The frame is in the shape of a disc frame, a lower clamp is vertically provided at the center of the upper surface of the frame, a hanging shaft is horizontally provided on the lower clamp, a raising platform is provided at the bottom of the lower clamp, the height of the raising platform is half of the height of the fan, and a bracket is horizontally provided on the outer side of the end of the hanging shaft.
5. The lead structure of the bottom outlet for low voltage according to claim 1, characterized in that: The bracket is an L-shaped right-angle bracket, the short side of the bracket is connected to the end of the lower clamp, and the upper part of the long side of the bracket is connected to the external low-voltage lead through an insulator.