Improved multi-winding transformer framework
By improving the structural design of the multi-winding transformer bobbin, and utilizing the combination of core column, top plate, bottom plate, upper partition and lower partition, the problem of excessive longitudinal space occupied by the multi-winding transformer bobbin is solved, and the stability and heat dissipation effect of the transformer installation and copper wire winding on the circuit board with limited thickness are realized.
Patent Information
- Application Number
- CN202520056400.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-10
AI Technical Summary
The existing multi-winding transformer frame, when in a vertical configuration, occupies too much longitudinal space, resulting in an excessively tall transformer that is inconvenient to install on circuit boards with limited thickness.
By fixing the core column to the top and bottom plates, and combining the design of the upper and lower partitions, guides and limits are provided to fix the pin position, reduce the occupation of the wire pins in the longitudinal space, and assist the copper wire winding through the core hole to form a complete circuit to reduce the height of the skeleton.
It effectively reduces the longitudinal space occupied by multi-winding transformers, reduces the overall height of the transformer, facilitates installation on circuit boards with limited thickness, and improves the stability and heat dissipation of copper wire winding.
Smart Images
Figure CN223770919U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformer technology, and in particular to an improved multi-winding transformer frame. Background Technology
[0002] A multi-winding transformer is a type of transformer that can be wound with multiple windings. It can use the principle of electromagnetic induction to achieve energy conversion between different voltage levels and is widely used in power systems. The multi-winding transformer skeleton is a frame component that provides winding space for the copper wires in the multi-winding transformer and fixes the iron core in the multi-winding transformer.
[0003] However, since multi-winding transformer frames are mostly divided into two types, vertical and horizontal, the existing multi-winding transformer frames on the market currently occupy too much longitudinal space when using the vertical type, making the transformer too tall after manufacturing, which is not convenient for installation on circuit boards of devices with limited thickness.
[0004] Therefore, those skilled in the art have provided an improved multi-winding transformer frame to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an improved multi-winding transformer frame. The core column is fixedly connected to the top and bottom plates, which establishes the winding height. The first, second, third, and fourth pins are fixed to both sides by two lower partitions, reducing the occupation of the wire pins in the longitudinal space and thus reducing the overall longitudinal space occupied by the frame.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] An improved multi-winding transformer frame includes a core column, a top plate, and a bottom plate. The upper end of the core column is fixedly connected to the top plate. An upper partition plate is fixedly connected to both the front and rear ends of the upper end of the top plate. The lower end of the core column is fixedly connected to the bottom plate. A lower partition plate is fixedly connected to both the front and rear ends of the lower end of the bottom plate. A second pin and a first pin are fixedly connected to one side and the other side of the front lower partition plate, respectively. A fourth pin and a third pin are fixedly connected to one side and the other side of the rear lower partition plate, respectively.
[0008] The above technical solution establishes the winding height by fixing the core column to the top and bottom plates, and also provides a position for the installation of the transformer core. The two upper connecting slots on the upper partition and the two lower connecting slots on the lower partition provide guidance and limit for the winding of the coil, preventing contact between coils of different windings and allowing the coil to be wound along the prescribed track. The two lower partitions fix the first, second, third, and fourth pins on both sides, reducing the occupation of the wire pins in the longitudinal space, thereby reducing the overall longitudinal space occupied by the frame, reducing the height of the transformer after it is manufactured, and facilitating its installation on the circuit board of devices with limited thickness.
[0009] Furthermore, the core post has core holes at both its upper and lower ends, and the upper and lower ends of the core holes are respectively connected to the top plate and the bottom plate.
[0010] Through the above technical solution, the upper and lower ends of the core hole opened on the core column are connected to the top plate and the bottom plate respectively, so that the copper wire can be wound into the core hole from the upper connecting groove opened on the upper partition and the lower connecting groove opened on the lower partition to form a complete circuit. The core hole also helps the air to circulate around the coil, indirectly assisting in heat dissipation.
[0011] Furthermore, two upper connecting grooves are provided in the middle of the side of the upper partition away from the center of the core column;
[0012] The above technical solution provides upper guide and limit for the copper wire when it is wound into the core hole through the four upper connecting slots opened on the two upper partitions, separating the coils and reducing unnecessary contact between the coils, which helps the copper wire to wind.
[0013] Furthermore, two lower connecting grooves are provided in the middle of the side of the lower partition away from the center of the core column;
[0014] The above technical solution provides a lower guide and limit for the copper wire when it is wound into the core hole through the four lower connecting slots opened on the two lower partitions, which separates the coils and reduces unnecessary contact between the coils, which helps the copper wire to wind. At the same time, when the copper wire is guided from the pin connecting the copper wire to the inside of the protrusion at the lower end of the lower partition, the lower connecting slots can be used to guide the copper wire to wind onto the upper connecting slot.
[0015] Furthermore, positioning grooves are provided on both sides of the lower partition plate on the side away from the center of the core column, and the positioning grooves are located on both sides of the lower connecting groove;
[0016] Through the above technical solution, the positioning grooves opened on the lower partition plate allow the frame to be fixed in position by the clamp during coil winding, reducing the impact of frame instability on coil winding. The four positioning grooves opened on the two lower partition plates are arranged in two groups on both sides of the two groups of lower connecting grooves, so that when the copper wire is guided from the pin of the connecting copper wire to the inside of the protrusion at the lower end of the lower partition plate, the copper wire can be clamped in the positioning groove by the clamp, preventing the coil from loosening under the action of tension and its own elastic deformation force during the initial winding, thus facilitating coil winding.
[0017] This utility model has the following beneficial effects:
[0018] 1. This utility model proposes an improved multi-winding transformer frame, which is fixedly connected to the top and bottom plates by the core column, which establishes the winding height and provides a position for the installation of the transformer core. The two upper connecting slots on the upper partition and the two lower connecting slots on the lower partition provide guidance and limit for the winding of the coil, preventing contact between different winding coils and allowing the coil to be wound along the prescribed track. The two lower partitions fix the first, second, third, and fourth pins on both sides, reducing the occupation of the wire pins in the longitudinal space, thereby reducing the overall longitudinal space occupied by the frame and reducing the height of the transformer after it is manufactured. This makes it easier to install on the circuit board of devices with limited thickness. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the main structure of an improved multi-winding transformer frame proposed in this utility model;
[0020] Figure 2 This is an isometric view of an improved multi-winding transformer frame proposed in this utility model;
[0021] Figure 3 This is a side view of an improved multi-winding transformer frame proposed in this utility model;
[0022] Figure 4 This is a top view of an improved multi-winding transformer frame proposed in this utility model;
[0023] Figure 5 This is a front view of an improved multi-winding transformer frame proposed in this utility model;
[0024] Figure 6 This is a bottom view of an improved multi-winding transformer frame proposed in this utility model.
[0025] Legend:
[0026] 1. Core post; 2. Core hole; 3. Top plate; 4. Bottom plate; 5. Upper partition; 6. Upper connecting groove; 7. Lower partition; 8. Lower connecting groove; 9. Positioning groove; 10. First pin; 11. Second pin; 12. Third pin; 13. Fourth pin. Detailed Implementation
[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0028] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 One specific embodiment provided by this utility model:
[0029] An improved multi-winding transformer frame includes a core column 1, a top plate 3, and a bottom plate 4. The upper end of the core column 1 is fixedly connected to the top plate 3. The front and rear ends of the upper end of the top plate 3 are both fixedly connected to an upper partition plate 5. The lower end of the core column 1 is fixedly connected to the bottom plate 4. The front and rear ends of the lower end of the bottom plate 4 are both fixedly connected to a lower partition plate 7. A second pin 11 and a first pin 10 are fixedly connected to one side and the other side of the front lower partition plate 7, respectively. A fourth pin 13 and a third pin 12 are fixedly connected to one side and the other side of the rear lower partition plate 7, respectively.
[0030] The core post 1 is fixedly connected to the top plate 3 and the bottom plate 4, which establishes the winding height and provides a position for the installation of the transformer core. The two upper connecting slots 6 on the upper partition 5 and the two lower connecting slots 8 on the lower partition 7 provide guidance and limit for the winding of the coil, preventing contact between coils of different windings and allowing the coil to be wound along the prescribed track. The two lower partitions 7 fix the first pin 10, the second pin 11, the third pin 12 and the fourth pin 13 to both sides, reducing the occupation of the wire pins in the longitudinal space, thereby reducing the overall occupation of the longitudinal space of the frame, reducing the height of the transformer after it is manufactured, and making it easier to install on the circuit board of the device with limited thickness.
[0031] The core post 1 has core holes 2 at both its upper and lower ends. The upper and lower ends of the core holes 2 are respectively connected to the top plate 3 and the bottom plate 4. The connection between the upper and lower ends of the core holes 2 on the core post 1 and the top plate 3 and bottom plate 4 allows the copper wire to wind into the core holes 2 through the upper connecting groove 6 on the upper partition 5 and the lower connecting groove 8 on the lower partition 7, forming a complete circuit. The core holes 2 also facilitate airflow around the coil, indirectly aiding in heat dissipation. Two upper connecting grooves 6 are formed in the middle of the side of the upper partition 5 furthest from the center of the core post 1. These four upper connecting grooves 6 on the two upper partitions 5 provide upper guide and limit when the copper wire winds into the core holes 2, separating the coils and reducing unnecessary contact between them, thus facilitating the winding of the copper wire. Two lower connecting grooves 8 are formed in the middle of the side of the lower partition 7 furthest from the center of the core post 1. These four lower connecting grooves 8 on the two lower partitions 7 provide lower guide and limit when the copper wire winds into the core holes 2. The limiting mechanism separates the coils, reducing unnecessary contact and facilitating the winding of the copper wire. Simultaneously, when guiding the copper wire from the connecting pin to the inner side of the protruding block at the lower end of the lower partition 7, the lower connecting groove 8 guides the copper wire onto the upper connecting groove 6. Positioning grooves 9 are provided on both sides of the lower partition 7 away from the center of the core post 1. These positioning grooves 9 are located on both sides of the lower connecting groove 8. The positioning grooves 9 on the lower partition 7 allow the frame to be fixed in place during coil winding, reducing the impact of frame instability on coil winding. The four positioning grooves 9 on the two lower partitions 7 are arranged in two groups on both sides of the two groups of lower connecting grooves 8. This allows the copper wire to be clamped in the positioning grooves 9 when guided from the connecting pin to the inner side of the protruding block at the lower end of the lower partition 7, preventing the coil from loosening under tension and its own elastic deformation during initial winding, thus facilitating coil winding.
[0032] Working principle: When using this improved multi-winding transformer frame, the operator first needs to install the core of the multi-winding transformer onto the core post 1, between the top plate 3 and the bottom plate 4. Place the frame on the workbench and weld one end of each of the four copper wires to the first pin 10, the second pin 11, the third pin 12, and the fourth pin 13 respectively. Pass each of the four copper wires through the notch at the lower end of the lower partition 7 to the inside of the protrusion at the lower end of the lower partition 7, and then wind them into the lower connecting groove 8. Use a clamp to hold the positioning groove 9, and also hold the copper wires. Finally, the operator winds the copper wires from the lower connecting groove 8 to the upper connecting groove 6 opened on the upper partition 5, then through the core hole 2, and then back into the lower connecting groove 8. Repeat this process multiple times to complete the winding of the coil. After releasing the clamp, weld the first pin 10, the second pin 11, the third pin 12, and the fourth pin 13 to the PCB circuit board and install the multi-winding transformer.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An improved multi-winding transformer core frame comprising a core column (1), a top plate (3) and a bottom plate (4), characterized in that: The upper end of the core column (1) is fixedly connected with the top plate (3), the front end and the rear end of the upper end of the top plate (3) are fixedly connected with the upper partition plate (5), the lower end of the core column (1) is fixedly connected with the bottom plate (4), the front end and the rear end of the lower end of the bottom plate (4) are fixedly connected with the lower partition plate (7), the side and the other side of the front end of the lower partition plate (7) are fixedly connected with the second needle foot (11) and the first needle foot (10) respectively, and the side and the other side of the rear end of the lower partition plate (7) are fixedly connected with the fourth needle foot (13) and the third needle foot (12) respectively.
2. An improved multi-winding transformer core according to claim 1, characterized in that: The upper end and the lower end of the core column (1) are provided with core holes (2), and the upper end and the lower end of the core hole (2) are penetrated through the top plate (3) and the bottom plate (4) respectively.
3. An improved multi-winding transformer core according to claim 1, wherein: The middle part of the side, away from the center of the core column (1), of the upper partition plate (5) is provided with two upper connecting grooves (6).
4. An improved multi-winding transformer core according to claim 1, wherein: The middle part of the side, away from the center of the core column (1), of the lower partition plate (7) is provided with two lower connecting grooves (8).
5. An improved multi-winding transformer core according to claim 1, wherein: The two sides of the side, away from the center of the core column (1), of the lower partition plate (7) are provided with positioning grooves (9), and the positioning grooves (9) are located on the two sides of the lower connecting grooves (8).