A transformer structure for a power module
By adjusting the combination structure of components and conductive blocks, the stability problem of power module transformers when installed on different PCB boards was solved, realizing flexible adjustment of pin spacing and stable connection, adapting to the installation requirements of different PCB boards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUZHOU HANXIANG ELECTRONIC CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-09
AI Technical Summary
When the existing power module transformer is installed on PCBs of different sizes, the fixed position of the pins causes the solder joints to be bent when they are between two insertion holes, which affects stability.
It adopts a combination of structures such as adjustment components, wire placement groove, adjustment groove, limit plate, limit groove, rectangular opening, winding copper wire, bidirectional lead screw, conductive block, and conductive post. The pin spacing can be flexibly adjusted by knob and positioning screw. The spacing is displayed by scale and insulating rod pointer to ensure stable connection.
It enables flexible adjustment of pin spacing to adapt to different PCB board installation requirements, improving pin stability and installation efficiency.
Smart Images
Figure CN224342132U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformers, and in particular to a transformer structure for a power module. Background Technology
[0002] The transformers used in power modules are typically small in size and can provide multiple voltage outputs during operation. Sometimes, transformers of the same specification need to be mounted on PCBs of different sizes, but the positions of the transformer pins are fixed, making it inconvenient to mount them on different PCBs.
[0003] To address this, existing patent CN222653746U discloses a transformer structure for a power module, including a transformer body. Mounting portions are located on both lower sides of the transformer body, and each mounting portion has several insertion holes distributed along the length of the transformer body. Pins are secured within these insertion holes. This application facilitates connection to different PCB boards.
[0004] The applicant found that although the above device can be used to connect different PCB boards, there is a blind zone between two adjacent insertion holes. This means that if the solder joint on the PCB board is located between two insertion holes, the pin needs to be bent at a certain angle to meet the installation requirements, which affects the stability of the pin. Therefore, we propose an improved power module transformer structure. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a transformer structure for power modules.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a transformer structure for a power module, comprising a transformer body, mounting components on both sides of the transformer body, and adjusting components fixedly connected to the lower ends of the two mounting components. The two adjusting components are respectively provided with a wire placement groove and an adjusting groove. A winding copper wire is disposed in the wire placement groove. A bidirectional lead screw is rotatably connected to the adjusting groove. Conductive blocks are threaded onto both sides of the bidirectional lead screw. Pins are fixedly connected to the lower end faces of the two conductive blocks, and conductive posts are fixedly connected to the upper end faces of the two conductive blocks. The conductive posts are electrically connected to the winding copper wire. One end of the bidirectional lead screw passes through the adjusting component and is fixedly connected to a knob.
[0007] As a further description of the above technical solution:
[0008] A limiting plate is provided between the wire placement groove and the adjustment groove. The limiting plate is fixedly connected inside the adjustment assembly. A limiting groove is formed on the limiting plate, and the width of the limiting groove is smaller than the outer diameter of the winding copper wire.
[0009] The above technical solution avoids the winding copper wire located in the wire placement slot from entering the adjustment slot and interfering with the movement of the conductive block.
[0010] As a further description of the above technical solution:
[0011] The conductive post is slidably connected in the limiting groove, and the upper and lower ends of the conductive block are respectively slidably attached to the inner walls of the limiting plate and the adjusting groove.
[0012] The above technical solution ensures that the conductive block can move stably within the adjustment groove.
[0013] As a further description of the above technical solution:
[0014] The lower end face of the adjustment component has a rectangular opening, and the pin is arranged through the rectangular opening.
[0015] The above technical solution facilitates the connection of pins extending from the adjustment assembly to the PCB board.
[0016] As a further description of the above technical solution:
[0017] Insulating rods are fixedly connected to the outer walls of the two conductive blocks located at the same end. Slide grooves are opened at the opposite ends of the two adjustment components. The insulating rods pass through the slide grooves and are fixedly connected to pointers. Scales are fixedly set on the outer walls of the opposite ends of the two adjustment components. The pointers slide and fit against the surface of the scales.
[0018] The above technical solution allows for a direct display of the distance between two pins by reading the pointer on the scale, thus facilitating quick adjustment of the other two pins.
[0019] As a further description of the above technical solution:
[0020] Both of the lower ends of the two adjustment components are threaded with positioning screws, and the other ends of the two positioning screws are pressed against the outer wall of the shaft of the bidirectional lead screw.
[0021] The above technical solution utilizes a positioning screw to press the bidirectional lead screw and prevent it from rotating unexpectedly.
[0022] As a further description of the above technical solution:
[0023] The adjustment component is made of plastic, and the positioning screw is made of an internal hex bolt.
[0024] The above technical solution facilitates the connection of a hex wrench for adjustment.
[0025] This utility model has the following beneficial effects:
[0026] 1. Compared with existing technologies, this power module transformer structure, through the coordinated arrangement of an adjustment component, a wire placement slot, an adjustment groove, a limiting plate, a limiting groove, a rectangular opening, winding copper wire, a bidirectional lead screw, conductive blocks, pins, and conductive posts, allows for the control of the relative movement of two conductive blocks by rotating the bidirectional lead screw. This, in turn, adjusts the distance between the two conductive blocks, thereby adjusting the distance between the two pins. This better meets the installation requirements of different PCB boards and is particularly suitable for the application scenario of a simple linear power supply with two primary pins and two secondary pins. In addition, the spacing of the limiting grooves on the limiting plate is smaller than the outer diameter of the winding copper wire, which can be separated by the limiting plate to prevent the winding copper wire from entering the adjustment groove and affecting the movement of the conductive blocks.
[0027] 2. Compared with the prior art, this power module transformer structure, through the coordinated structure of insulating rod, slide, pointer, scale and positioning screw, can move the insulating rod synchronously during the adjustment process by moving the conductive block, which in turn moves the pointer. The distance between the two pins can be read by the scale. It is convenient to quickly adjust the position of the two pins on the other side after adjusting the two pins on one side. In addition, the positioning screw can press the bidirectional lead screw after the adjustment is completed to prevent it from rotating accidentally. Attached Figure Description
[0028] Figure 1 This is a bottom view of the transformer structure for a power module proposed in this utility model;
[0029] Figure 2 This is a structural diagram of the internal structure of the regulating component of a transformer structure for a power module proposed in this utility model;
[0030] Figure 3 for Figure 1 Enlarged view of the structure at point A in the middle;
[0031] Figure 4 This is a top view of the internal structure of the regulating component of a power module transformer structure proposed in this utility model.
[0032] Legend:
[0033] 1. Transformer body; 2. Mounting assembly; 3. Adjustment assembly; 4. Wire placement groove; 5. Adjustment groove; 6. Limiting plate; 7. Limiting groove; 8. Rectangular opening; 9. Winding copper wire; 10. Bidirectional lead screw; 11. Conductive block; 12. Pin; 13. Conductive post; 14. Insulating rod; 15. Slide groove; 16. Pointer; 17. Scale; 18. Positioning screw. Detailed Implementation
[0034] Reference Figure 1-4 The present invention provides a transformer structure for a power module, comprising a transformer body 1, with mounting components 2 on both sides of the transformer body 1, and adjusting components 3 fixedly connected to the lower ends of the two mounting components 2. The two adjusting components 3 are respectively provided with a wire placement groove 4 and an adjusting groove 5. A winding copper wire 9 is placed in the wire placement groove 4 and passes through the side plate of the adjusting component 3. A bidirectional lead screw 10 is rotatably connected in the adjusting groove 5. Conductive blocks 11 are threadedly connected to both sides of the bidirectional lead screw 10. Pins 12 are fixedly connected to the lower end faces of the two conductive blocks 11, and conductive posts 13 are fixedly connected to the upper end faces of the two conductive blocks 11. The conductive posts 13 are electrically connected to the winding copper wire 9. One end of the bidirectional lead screw 10 passes through the adjusting component 3 and is fixedly connected to a knob, which can drive the bidirectional lead screw 10 to rotate.
[0035] A limiting plate 6 is provided between the wire placement groove 4 and the adjustment groove 5. The limiting plate 6 is fixedly connected in the adjustment assembly 3. A limiting groove 7 is opened on the limiting plate 6. The width of the limiting groove 7 is smaller than the outer diameter of the winding copper wire 9, so as to prevent the winding copper wire 9 located in the wire placement groove 4 from entering the adjustment groove 5 and interfering with the movement of the conductive block 11.
[0036] The conductive post 13 is slidably connected in the limiting groove 7, and the upper and lower ends of the conductive block 11 are respectively slidably attached to the inner walls of the limiting plate 6 and the adjusting groove 5 to ensure that the conductive block 11 can move stably in the adjusting groove 5.
[0037] The lower end face of the adjustment component 3 has a rectangular opening 8, through which the pin 12 is set to extend from the adjustment component 3 and connect to the PCB board.
[0038] Insulating rods 14 are fixedly connected to the outer walls of the two conductive blocks 11 located at the same end. Slide grooves 15 are opened at the opposite ends of the two adjustment components 3. The insulating rods 14 pass through the slide grooves 15 and are fixedly connected to pointers 16. Scales 17 are fixedly set on the outer walls of the opposite ends of the two adjustment components 3. The pointers 16 slide against the surface of the scales 17. By reading the pointers 16 on the scales 17, the distance between the two pins 12 can be displayed intuitively, so as to facilitate quick adjustment of the other two pins 12.
[0039] Both adjusting components 3 have a positioning screw 18 threadedly connected to one side of their lower ends. The other ends of the two positioning screws 18 are pressed against the outer wall of the rotating shaft of the bidirectional lead screw 10. The positioning screws 18 can be used to press the bidirectional lead screw 10 to prevent it from rotating accidentally.
[0040] The adjustment component 3 is made of plastic, and the positioning screw 18 is made of internal hex bolts, which makes it easy to connect a hex wrench for adjustment.
[0041] Working principle: Based on the solder joint positions on different PCB boards, loosen the positioning screw 18 with a hex wrench, then rotate the double-acting screw 10 by the knob. First, control the relative movement of the two conductive blocks 11 at the front end, and drive the pointer 16 to move on the scale 17 through the insulating rod 14. After the adjustment is completed, observe the position of the pointer 16, and you can quickly adjust the spacing between the two pins 12 at the other end. After the adjustment is completed, tighten the positioning screw 18 to prevent the double-acting screw 10 from rotating accidentally, and then install the transformer body 1. The operation is convenient and time-saving.
[0042] 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 embodiments, those skilled in the art can still modify the technical solutions described in the foregoing 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. A transformer structure for a power module, comprising a transformer body (1), wherein mounting components (2) are provided on both sides of the transformer body (1), characterized in that: The lower ends of the two mounting components (2) are fixedly connected to adjustment components (3). The two adjustment components (3) are respectively provided with a wire placement groove (4) and an adjustment groove (5). The wire placement groove (4) is provided with a winding copper wire (9). The adjustment groove (5) is rotatably connected with a bidirectional lead screw (10). The two sides of the bidirectional lead screw (10) are threaded with conductive blocks (11). The lower end faces of the two conductive blocks (11) are fixedly connected with pins (12). The upper end faces of the two conductive blocks (11) are fixedly connected with conductive posts (13). The conductive posts (13) are electrically connected to the winding copper wire (9). One end of the bidirectional lead screw (10) passes through the adjustment component (3) and is fixedly connected with a knob.
2. The transformer structure for a power module according to claim 1, characterized in that: A limiting plate (6) is provided between the wire placement groove (4) and the adjustment groove (5). The limiting plate (6) is fixedly connected inside the adjustment assembly (3). A limiting groove (7) is opened on the limiting plate (6). The width of the limiting groove (7) is smaller than the outer diameter of the winding copper wire (9).
3. The transformer structure for a power module according to claim 1, characterized in that: The conductive post (13) is slidably connected in the limiting groove (7), and the upper and lower ends of the conductive block (11) are respectively slidably attached to the inner walls of the limiting plate (6) and the adjusting groove (5).
4. The transformer structure for a power module according to claim 1, characterized in that: The lower end face of the adjustment component (3) is provided with a rectangular opening (8), and the pin (12) is provided through the rectangular opening (8).
5. The transformer structure for a power module according to claim 1, characterized in that: An insulating rod (14) is fixedly connected to the outer wall of the two conductive blocks (11) located at the same end. A sliding groove (15) is opened at the opposite end of the two adjustment components (3). The insulating rod (14) passes through the sliding groove (15) and is fixedly connected to a pointer (16). A scale (17) is fixedly set on the outer wall of the opposite end of the two adjustment components (3). The pointer (16) slides and fits against the surface of the scale (17).
6. The transformer structure for a power module according to claim 1, characterized in that: Both of the adjustment components (3) have a positioning screw (18) threaded to one side of their lower ends, and the other ends of the two positioning screws (18) are pressed against the outer wall of the shaft of the bidirectional lead screw (10).
7. The transformer structure for a power module according to claim 6, characterized in that: The adjustment component (3) is made of plastic, and the positioning screw (18) is made of hexagonal socket head cap screw.