Combined adjustable transformer bakelite skeleton
By designing a modular adjustable transformer bakelite frame, the problem of not being able to replace individual pins when they are damaged is solved, achieving low-cost and efficient repair results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI PINYUE ELECTRONICS CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-06-19
Smart Images

Figure CN224384025U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bakelite frames, specifically a modular adjustable transformer bakelite frame. Background Technology
[0002] In the field of power and electronic equipment, the transformer bakelite skeleton is a key component of the transformer. It is generally made of bakelite material, which is phenolic plastic. It has the characteristics of high mechanical strength, good insulation, heat resistance and corrosion resistance. The transformer bakelite skeleton not only provides support and fixation for the transformer core, but also provides space for the winding of copper wire. At the same time, its wire slots provide a path for the winding operation. It plays an indispensable supporting and organizing role in the entire transformer structure.
[0003] Some bakelite frames have pins fixed at the bottom. These pins play a very important role in the operation of the transformer. They are mainly used to weld and fix the ends of the coils wound on the bakelite frame. Through the connection of the pins with the external circuit, the internal coils of the transformer are effectively connected to the entire circuit system.
[0004] The pins at the bottom of the existing transformer bakelite frame are usually cast directly into the frame during the production process. However, when the pins are damaged, it is difficult to repair or replace them individually because the pins are tightly integrated with the frame. Often, the entire bakelite frame needs to be replaced, which increases maintenance costs. Utility Model Content
[0005] Based on this, the purpose of this utility model is to provide a combined adjustable transformer bakelite frame to solve the technical problem that the pins at the bottom of the existing transformer bakelite frame cannot be replaced and repaired individually.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a combined adjustable transformer bakelite frame, comprising a frame, a placement groove at the bottom of the frame, a plurality of first mounting blocks and second mounting blocks arranged alternately in the placement groove, pins mounted at the bottom of the first mounting blocks, an installation groove at one end of the placement groove, a fixing block disposed inside the installation groove, a support column fixed inside the placement groove, a retainer disposed on one side of the fixing block, and a retaining ring mounted at one end of the retainer.
[0007] By adopting the above technical solution, the problem that the pins at the bottom of the existing transformer bakelite frame cannot be replaced and repaired individually is solved. First, the coil end on the pin is removed from the pin. Then, the retainer is removed from the end of the support column. Next, the retaining block, the second mounting block, and the first mounting block are taken out from the placement slot in sequence. Then, the first mounting block with the damaged pin is replaced. After the first mounting block and the second mounting block are installed in the placement slot, the retaining block is installed at the end of the inner wall of the placement slot. Finally, the retainer is installed at one end of the placement slot, so that personnel can easily replace the damaged pins at the bottom of the frame.
[0008] The present invention is further configured such that a groove is provided on one side of the skeleton, and multiple sets of partitions are provided on the outer wall of the groove, and the partitions are equally spaced.
[0009] Preferably, the ends of the coil wound on the skeleton can be extended to the pins along the grooves.
[0010] The present invention is further configured such that the top wall of the groove is arc-shaped.
[0011] Preferably, the outer wall of the groove is arc-shaped, which helps the coil end to fit against the outer wall of the frame.
[0012] The present invention is further configured such that limit blocks are provided on both sides of the first mounting block, the second mounting block and the fixing block, and a sliding groove is provided on the inner wall of the placement groove.
[0013] Preferably, the frame supports the limiting block through the sliding groove, so that the frame can support and fix the first mounting block, the second mounting block and the fixing block.
[0014] The present invention is further configured such that a connecting block is installed on the top of the first mounting block, the second mounting block, and the fixing block, and a through hole is opened inside the connecting block, and the inner wall diameter of the through hole on the first mounting block and the second mounting block is equal to the diameter of the support column.
[0015] Preferably, since the first mounting block and the second mounting block are connected to the support column through the connecting block at the top, multiple sets of first mounting blocks and second mounting blocks can share the force of pulling on a set of mounting blocks.
[0016] The present invention is further configured such that the first mounting block and the second mounting block have the same size.
[0017] Preferably, the first mounting block and the second mounting block are alternately arranged in the placement slots inside the frame.
[0018] The present invention is further configured such that two sets of support feet are installed at the bottom of the frame, and the bottom wall of the support feet and the bottom wall of the pin are on the same horizontal plane.
[0019] Preferably, when the frame is mounted on the circuit board, the frame transmits gravity to the circuit board through the support feet at its bottom.
[0020] The present invention is further configured such that the inner wall diameter of the through hole at the top of the fixing block is greater than the diameter of the support column, the outer wall diameter of the fixing ring is equal to the inner wall diameter of the through hole at the top of the fixing block, and the fixing ring and the support column are connected by threads.
[0021] Preferably, the retainer is threadedly connected to the support column via a retaining ring at the end, which enables the retainer to compress and fix the retaining block.
[0022] In summary, the present invention has the following main advantages:
[0023] 1. This utility model solves the problem that the pins at the bottom of the existing transformer bakelite frame cannot be replaced and repaired individually by setting up a frame, a placement groove, a first mounting block, a second mounting block, pins, a retainer, a support column, and a fixing block. First, the coil end on the pin is removed from the pin. Then, the retainer is removed from the end of the support column. Next, the fixing block, the second mounting block, and the first mounting block are taken out from the placement groove in sequence. Then, the first mounting block with the damaged pin is replaced. After the first mounting block and the second mounting block are installed in the placement groove, the fixing block is installed at the end of the inner wall of the placement groove. Finally, the retainer is installed at one end of the placement groove, so that personnel can easily replace the damaged pins at the bottom of the frame.
[0024] 2. By setting up a support column, connecting block, sliding groove and limiting block, when the pin at the bottom of any group of first mounting blocks is pulled by an external force, the frame can fix and limit the first mounting block by supporting the limiting block through the sliding groove. In addition, since the first mounting block and the second mounting block are connected to the support column through the connecting block at the top, multiple groups of first mounting blocks and second mounting blocks can share the force of pulling a group of mounting blocks. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall device of this utility model;
[0026] Figure 2 This is a diagram of the internal structure of the skeleton of this utility model;
[0027] Figure 3 This is an overall structural diagram of the second mounting block of this utility model;
[0028] Figure 4 This is a schematic diagram of the installation of the first mounting block of this utility model;
[0029] Figure 5This is a schematic diagram of the installation of the fixing block of this utility model;
[0030] Figure 6 This is a structural diagram of the fixture of this utility model;
[0031] Figure 7 This is a schematic diagram of the baffle installation of this utility model.
[0032] Explanation of reference numerals in the attached figures:
[0033] 1. Frame; 101. Support foot; 102. Groove; 103. Partition; 104. Placement slot; 105. Slide groove; 106. Support column; 107. Mounting slot; 2. First mounting block; 201. Pin; 3. Second mounting block; 301. Limiting block; 302. Connecting block; 303. Through hole; 304. Baffle; 4. Fixing block; 5. Fixer; 501. Fixing ring. Detailed Implementation
[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0035] The embodiments of this utility model will be described below based on its overall structure.
[0036] First embodiment:
[0037] Please see Figure 1 — Figure 6 The system includes a frame 1, with a placement groove 104 at its bottom. The placement groove 104 has multiple sets of first mounting blocks 2 and second mounting blocks 3, which are alternately arranged. Pins 201 are mounted on the bottom of the first mounting blocks 2. A mounting groove 107 is formed at one end of the placement groove 104. A fixing block 4 is installed inside the mounting groove 107, and a support column 106 is fixed inside the placement groove 104. A retainer 5 is provided on one side of the fixing block 4, and a retaining ring 501 is installed at one end of the retainer 5. This design solves the problem that the pins at the bottom of the existing transformer bakelite frame cannot be replaced or repaired individually. To address the issue, first remove the coil end from pin 201, then remove the retainer 5 from the support column end 106. Next, remove the retaining block 4, the second mounting block 3, and the first mounting block 2 from the placement slot 104 in sequence. Then, replace the first mounting block 2 with the damaged pin 201. After the first mounting block 2 and the second mounting block 3 are installed in the placement slot 104, install the retaining block 4 to the end of the inner wall of the placement slot 104. Finally, install the retainer 5 to one end of the placement slot 104, so that personnel can easily replace the damaged pin 201 at the bottom of the frame 1.
[0038] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 A groove 102 is provided on one side of the frame 1. Multiple sets of partitions 103 are provided on the outer wall of the groove 102, and the partitions 103 are equally spaced. The end of the coil wound on the frame 1 can extend to the pin 201 along the groove 102.
[0039] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 The top wall of the groove 102 is arc-shaped, and the outer wall of the groove 102 is arc-shaped, which helps the coil end to fit against the outer wall of the frame 1.
[0040] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 and Figure 3 Limiting blocks 301 are provided on both sides of the first mounting block 2, the second mounting block 3, and the fixing block 4. A sliding groove 105 is provided on the inner wall of the placement groove 104. The frame 1 supports the limiting blocks 301 through the sliding groove 105, so that the frame 1 can support and fix the first mounting block 2, the second mounting block 3, and the fixing block 4.
[0041] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 and Figure 5 The top of the first mounting block 2, the second mounting block 3, and the fixing block 4 are all equipped with connecting blocks 302, and the connecting blocks 302 have through holes 303 inside. The inner diameter of the through holes 303 on the first mounting block 2 and the second mounting block 3 is equal to the diameter of the support column 106. Since the first mounting block 2 and the second mounting block 3 are connected to the support column 106 through the connecting blocks 302 at the top, multiple sets of first mounting blocks 2 and second mounting blocks 3 can share the force of the pull of a set of mounting blocks 2.
[0042] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 The first mounting block 2 and the second mounting block 3 are the same size, and the first mounting block 2 and the second mounting block 3 are alternately arranged in the placement slot 104 inside the frame 1.
[0043] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 The bottom of the frame 1 is equipped with two sets of support feet 101, and the bottom wall of the support feet 101 is on the same horizontal plane as the bottom wall of the pin 201. When the frame 1 is installed on the circuit board, the frame 1 transmits gravity to the circuit board through the support feet 101 at its bottom.
[0044] For details regarding the above embodiments, please refer to [link / reference]. Figure 5 and Figure 6The inner diameter of the through hole 303 at the top of the fixing block 4 is larger than the diameter of the support column 106. The outer diameter of the fixing ring 501 is equal to the inner diameter of the through hole 303 at the top of the fixing block 4. The fixing ring 501 is connected to the support column 106 by threads. The fixing device 5 is connected to the support column 106 by the fixing ring 501 at the end, so that the fixing device 5 can press and fix the fixing block 4.
[0045] Second embodiment:
[0046] Please see Figure 7 A baffle 304 is fixedly provided at the bottom of the second mounting block 3. The baffle 304 isolates and blocks the pins 201 on both sides of the second mounting block 3 to prevent the coil ends soldered on the pins 201 from coming into contact with the coil ends on the adjacent pins 201 due to loosening.
[0047] In practical operation, the coil is wound around the frame 1, and the end of the coil is welded to the pin 201 at the bottom of the frame 1. When a set of pins 201 at the bottom of the frame 1 is damaged, the coil end on the pin 201 is first removed from the pin 201. Then, the retainer 5 is rotated so that the retainer 5 is removed from the end of the support column 106. Subsequently, the fixing block 4, the first mounting block 3, and the first mounting block 2 installed at the bottom of the frame 1 are removed from the placement groove 104 in sequence. The first mounting block 2 with the damaged pin 201 is replaced. Then, multiple sets of second mounting blocks 3 and first mounting blocks 2 are removed. Mounting blocks 2 are sequentially installed into the placement groove 104, and the insertion of the mounting blocks 2 into the through holes 303 at the top of the first mounting block 2 and the second mounting block 3 is made to insert them into the placement groove 104. Then, fixing blocks 4 are installed into the end of the inner wall of the placement groove 104. Finally, fixing devices 5 are installed into one end of the placement groove 104 by means of a fixing ring 501 and the end of the support column 106 in a threaded connection, thereby completing the fixing of the first mounting block 2 and the second mounting block 3. Personnel then weld the end of the coil wound on the frame 1 to the pin 201 at the bottom of the first mounting block 2, and finally complete the replacement operation of the damaged pin 201 at the bottom of the frame 1.
[0048] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A modular adjustable transformer bakelite frame, comprising a frame (1), characterized in that: The bottom of the frame (1) is provided with a placement groove (104). The placement groove (104) is provided with multiple sets of first mounting blocks (2) and second mounting blocks (3), and the first mounting blocks (2) and second mounting blocks (3) are alternately arranged. The bottom of the first mounting block (2) is provided with a pin (201). One end of the placement groove (104) is provided with a mounting groove (107). The inside of the mounting groove (107) is provided with a fixing block (4). The inside of the placement groove (104) is fixed with a support column (106). One side of the fixing block (4) is provided with a fixing device (5). One end of the fixing device (5) is provided with a fixing ring (501).
2. The combined adjustable transformer bakelite frame according to claim 1, characterized in that: The skeleton (1) has a groove (102) on one side, and the outer wall of the groove (102) is provided with multiple sets of partitions (103), and the partitions (103) are arranged at equal intervals.
3. The combined adjustable transformer bakelite frame according to claim 2, characterized in that: The top wall of the groove (102) is arc-shaped.
4. The combined adjustable transformer bakelite frame according to claim 1, characterized in that: Limiting blocks (301) are provided on both sides of the first mounting block (2), the second mounting block (3) and the fixing block (4), and a sliding groove (105) is provided on the inner wall of the placement groove (104).
5. The combined adjustable transformer bakelite frame according to claim 1, characterized in that: The top of the first mounting block (2), the second mounting block (3) and the fixing block (4) are all equipped with connecting blocks (302), and the connecting blocks (302) have through holes (303) inside. The inner diameter of the through holes (303) on the first mounting block (2) and the second mounting block (3) is equal to the diameter of the support column (106).
6. The combined adjustable transformer bakelite frame according to claim 1, characterized in that: The first mounting block (2) and the second mounting block (3) are the same size.
7. The combined adjustable transformer bakelite frame according to claim 1, characterized in that: The bottom of the frame (1) is equipped with two sets of support feet (101), and the bottom wall of the support feet (101) and the bottom wall of the pin (201) are on the same horizontal plane.
8. The combined adjustable transformer bakelite frame according to claim 5, characterized in that: The inner diameter of the through hole (303) at the top of the fixing block (4) is greater than the diameter of the support column (106), and the outer diameter of the fixing ring (501) is equal to the inner diameter of the through hole (303) at the top of the fixing block (4). The fixing ring (501) and the support column (106) are connected by threads.
9. The combined adjustable transformer bakelite frame according to claim 1, characterized in that: The bottom of the second mounting block (3) is provided with a baffle (304), and the baffle (304) is made of bakelite.