A surge-proof transformer skeleton

Abstract

The present invention provides a surge-proof transformer skeleton, belonging to the technical field of transformers. The skeleton comprises a connecting sleeve, with skeletons sleeved at both ends of the connecting sleeve, and primary and secondary windings sleeved on two sets of skeletons, respectively; isolation plates are provided at both ends of the skeleton, and one or more sets of insulating plates are provided between the two sets of skeletons, and the insulating plates are sleeved on the connecting sleeve; two sets of iron cores are respectively mounted on the two sets of skeletons, one set of isolation plates on the skeleton is provided with a locking assembly on one side, and the iron core is located between the isolation plate and the locking assembly, and a mounting base is further provided at the bottom of the isolation plate, and the mounting base is provided with multiple sets of pins, and the pins are staggered with adjacent pins. The transformer skeleton is provided with an isolation plate between the two sets of skeletons, which enhances the insulation effect and can effectively prevent short circuits between windings caused by surge voltages; at the same time, the staggered arrangement of the pins on the mounting base increases the creepage distance between the pins and reduces the probability of short circuits caused by surge current at the pins.

Description

Technical Field

[0001] The present invention belongs to the technical field of transformers, and more particularly, relates to a surge-proof transformer skeleton. Background Art

[0002] The transformer is one of the most important components in electrical appliances. As the hub of power transmission and distribution, it can achieve voltage rise and fall based on the principle of electromagnetic induction, effectively ensuring that the electrical appliances obtain the appropriate voltage and operate stably and continuously. The transformer skeleton is an indispensable basic support structure in the transformer, providing a stable winding support for the transformer winding and fixing the position of the magnetic core to ensure smooth magnetic circuit.

[0003] In the daily use of electrical appliances, you may encounter surge shocks caused by various situations. For example, during thunderstorms, lightning currents may be transmitted through the power grid, instantly generating surge shocks during the use of electrical appliances. Surge shocks can cause the voltage inside the appliance to instantly soar, far exceeding its rated tolerance range, thereby damaging electronic components and shortening the service life of the appliance. However, traditional transformer bobbins usually only have simple insulation protection structures, weak isolation measures between windings, and insufficient electrical clearance and creepage distances, which cannot effectively resist the effects of surge shocks, and can easily lead to faults such as short circuits between transformer windings and insulation breakdown. These faults not only affect the normal operation of the transformer itself, but may also further pose safety risks to the power system. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a surge-proof transformer skeleton to solve the technical problem in the prior art that the traditional transformer skeleton has weak isolation between windings and cannot effectively protect against surge shocks, which easily leads to faults such as short circuit between windings and insulation breakdown, affecting the normal operation of the transformer.

[0005] The purpose and effect of the surge-proof transformer bobbin of the present invention are achieved by the following specific technical means:

[0006] A surge-proof transformer skeleton comprises a connecting sleeve, with skeletons provided at both ends of the connecting sleeve, both ends of the connecting sleeve being inserted into the skeletons, two groups of the skeletons being symmetrically distributed, the primary winding being sleeved on one group of the skeletons, and the secondary winding being sleeved on the other group of the skeletons; isolation plates being provided at both ends of the skeletons, the primary winding and the secondary winding being respectively located between multiple groups of the isolation plates, one or more groups of insulating plates being provided between the two groups of the skeletons, and the insulating plates being sleeved on the connecting sleeve; two groups of iron cores being respectively mounted on the two groups of the skeletons, a locking assembly being provided on one side of one group of the isolation plates on the skeletons, the iron core being located between the isolation plate and the locking assembly, a mounting seat being further provided at the bottom of the isolation plate, multiple groups of pins being provided on the mounting seat, and the pins being staggered with adjacent pins.

[0007] According to a preferred embodiment, the insulating plate includes an insulating partition, rubber plates are provided on both sides of the insulating partition, positioning protrusions are provided on both sides of the insulating partition, the rubber plates are provided with positioning grooves corresponding to the positioning protrusions, the positioning protrusions are inserted into the positioning grooves, and the rubber plates are in contact with the surface of the insulating plate; multiple groups of positioning sleeves are provided on one side of the isolation plate corresponding to the two groups of the skeletons, movable positioning columns are provided in the positioning sleeves, a first spring is provided in the positioning sleeves, one end of the first spring is connected to the positioning sleeve, and the other end is connected to the positioning column, and one end of the positioning column is in contact with the insulating plate.

[0008] According to a preferred embodiment, in the two groups of isolation plates corresponding to the two groups of the skeletons, one group of the isolation plates is provided with multiple groups of connecting blocks on one side, and the other group of the isolation plates is provided with multiple groups of connecting clips on one side. The connecting blocks are provided with connecting grooves and connecting clips. The connecting clips are passed through the connecting grooves and clamped on the connecting clips, and the two groups of skeletons are detachably connected; the two groups of skeletons and the four corners inside the connecting sleeve are provided with multiple groups of reinforcing ribs, and the multiple groups of reinforcing ribs are arranged at equal intervals.

[0009] According to a preferred embodiment, the insulating partition is made of polyimide, and the two groups of skeletons and the connecting sleeves are made of phenolic plastic.

[0010] According to a preferred embodiment, the locking assembly includes a locking cover plate, and multiple groups of limit plates are provided on one side of one group of the isolation plates on the skeleton, the iron core is clamped between the multiple groups of limit plates, the locking cover plate and one group of the limit plates are rotatably connected through a hinge structure, and the other group of the limit plates is provided with a fixed block, and a fixed card block is provided on the locking cover plate, and a fixed groove is provided on the fixed block, and the fixed card block is clamped in the fixed groove, and a covering structure is formed between the locking cover plate and the skeleton, and multiple groups of protrusions are provided on one side of the locking cover plate, and the protrusions are arranged in a semicircular shape, and multiple groups of protrusions are in contact with the iron core.

[0011] According to a preferred embodiment, the locking assembly also includes multiple groups of locking columns, both ends of the fixing block are provided with fixing through holes, the fixing through holes are connected with the fixing grooves, the fixing block is provided with fixing holes corresponding to the fixing through holes, the locking column is passed through the fixing through holes, one end of the locking column is passed through the fixing hole, and a sliding plate is provided at the other end; a sliding groove is provided on the sliding plate, the fixing block is provided with a sliding hole corresponding to the sliding groove, a sliding screw passes through the sliding groove and is clamped in the sliding hole, and the locking column and the fixing block are slidably connected.

[0012] According to a preferred embodiment, the two groups of sliding plates are staggered and in contact with each other, a pressing plate is provided at one end of the sliding plate, a second spring is provided between the two groups of pressing plates, limiting columns are provided on corresponding surfaces of the two groups of pressing plates, the second spring is sleeved on the two groups of limiting columns, and the two ends of the second spring are respectively connected to the two groups of pressing plates.

[0013] According to a preferred embodiment, the mounting seat is provided with multiple groups of adjustment slots, the adjustment slots are staggered with adjacent adjustment slots, the pins are inserted into the adjustment slots, and are slidably connected to the mounting seat; the mounting seat is provided with multiple groups of limit slots, the limit slots are located at the top of the adjustment slots, an adjustment block is provided on the pin, and the adjustment block is clamped in the limit slot; an adjustment plate is provided on the top of the adjustment block, an adjustment through hole is provided on the adjustment plate, and adjustment holes are provided on the mounting seat corresponding to the adjustment through holes, and an adjustment screw passes through the adjustment through hole and is clamped in one of the groups of adjustment holes; a detachable lifting block is provided on the top of the pin, and a protective cover is also provided on the pin.

[0014] According to a preferred embodiment, the mounting seat is provided with multiple groups of adjustment slots, the adjustment slots and adjacent adjustment slots are staggered, the mounting seat is provided with a detachable protective cover, the protective cover is provided with an adjustment slot corresponding to the adjustment slot, the pin is passed through the adjustment slot, one end of the pin is provided with a lifting block through the adjustment slot, and the pin is slidably connected to the mounting seat; the mounting seat is provided with multiple groups of limit slots, the limit slot is located at the top of the adjustment slot, the pin is provided with an adjustment block, and the adjustment block is clamped in the limit slot; positioning blocks are provided on both sides of the adjusting block, and positioning slots are provided on the mounting seat corresponding to the positioning block, and multiple groups of positioning slots are symmetrically distributed on both sides of the limit slot, and the positioning block is clamped in one group of positioning slots; multiple groups of third springs are provided between the adjusting block and the protective cover, the third spring is sleeved on the pin, and the pin is also sleeved with a protective cover.

[0015] According to a preferred embodiment, a mounting platform is provided on the top of one of the groups of isolation plates on the skeleton, a mounting cover is provided above the mounting platform, multiple groups of mounting blocks are provided on the mounting platform, the mounting cover is clamped between the multiple groups of mounting blocks, the mounting cover and the mounting platform are detachably connected to form a mounting cavity, and two groups of the mounting cavities are respectively provided with varistors and transient suppression diodes, the varistors are connected to the primary winding, and the transient suppression diodes are connected to the secondary winding; heat conducting plates are provided on both sides of the connecting sleeve, the heat conducting plates are sleeved on the two groups of the skeletons and the connecting sleeves and the two groups of the iron cores, multiple groups of heat dissipation plates are provided on the heat conducting plates, and a heat dissipation duct is formed between the heat dissipation plate and the adjacent heat dissipation plates.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The transformer skeleton is composed of two sets of skeletons through a connecting sleeve. The primary winding and the secondary winding are respectively mounted on the two sets of skeletons. The isolation plates at both ends of the skeleton and the multiple sets of insulating plates between the two sets of skeletons form layers of protection. The insulating partitions in the insulating plates are made of polyimide, which has high insulation strength and corona resistance. The rubber plates on both sides can not only assist in fixation but also enhance the insulation effect, which can effectively prevent the breakdown short circuit between the windings caused by surge voltage. At the same time, a locking assembly is provided on one of the isolation plates on the skeleton. The locking assembly can firmly fix the iron core to prevent it from displacement under surge impact and affecting the stability of the magnetic circuit; multiple sets of pins are installed on the mounting base, and the multiple sets of pins are staggered, which increases the creepage distance between the pins. Combined with the pin protection cover, it reduces the probability of surge current causing a short circuit at the pin. A varistor connected to the primary winding and a transient suppression diode connected to the secondary winding are installed in the mounting cavity of the skeleton. When a surge impact occurs, the varistor turns on at the moment the voltage exceeds the threshold, bypassing the surge current, while the transient suppression diode protects the secondary winding output. This dual protection ensures that the transformer is protected from surge damage and maintains stable operation.

[0018] 2. The two sets of skeletons are detachably connected through connecting blocks and connecting buckles, which facilitates quick disassembly and assembly during production assembly, fault repair or upgrade and modification, saving time and labor costs; the connection sleeve, skeleton and internal reinforcement ribs ensure the stability of the overall structure without affecting its disassembly function. The pins on the mounting base are connected to the mounting base by sliding. Through adjustment slots, limit slots, adjustment blocks, adjustment screws and other structures, the pin positions can be flexibly adjusted according to actual installation requirements to ensure adaptation to different circuit boards or electrical equipment interfaces. At the same time, the locking cover in the locking assembly is connected to the limit plate through a hinge structure, and cooperates with the fixed block, fixed card block and sliding locking column. The operation is simple and quick, and the core can be easily installed and disassembled. In addition, the core status can be quickly checked during daily maintenance to ensure the long-term stability of the transformer magnetic circuit.

[0019] 3. The heat conducting plates on both sides of the connecting sleeve cover the skeleton and the iron core, which can conduct the heat generated by the operation of the transformer. The multiple groups of heat dissipation plates on the heat conducting plates cooperate with each other to form a heat dissipation duct, accelerate the air flow, and use natural convection to efficiently dissipate heat, ensuring that the temperature of the transformer is always within a safe range when it generates additional heat after long-term operation or encountering a surge shock. A positioning sleeve is provided on one side of the corresponding isolation plate on the two sets of skeletons. The positioning sleeve cooperates with the positioning column and the first spring to ensure that the insulation plate is always in the best position during operation, maintaining good insulation and protection effects. The installation cavity formed by the mounting platform and the mounting cover is not only used to install surge protection components, but its stable structure also provides protection for internal components to avoid interference due to external vibrations, collisions and other factors, thereby comprehensively improving the reliability and stability of the transformer and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the assembled embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure after disassembly of the first embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the pin and the mounting base after being separated in accordance with the first embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the pin and the mounting base after being separated in the second embodiment of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure after the insulation board is disassembled;

[0025] Figure 6 It is a schematic diagram of the structure after the locking assembly is disassembled;

[0026] Figure 7 This is a schematic diagram of the structure after the varistor and transient suppression diode are separated;

[0027] Figure 8 It is a schematic diagram of the structure after the skeleton is split;

[0028] Figure 9 It is a structural diagram of the locking cover;

[0029] Figure 10 yes Figure 3 A partial enlarged view of area a in the middle;

[0030] Figure 11 yes Figure 4 A partial enlarged view of area b in the middle;

[0031] Figure 12 It is a structural diagram of the locking column.

[0032] In the figure, the corresponding relationship between component names and reference numerals is as follows:

[0033] 11. Connecting sleeve; 201. Frame; 202. Isolation plate; 203. Mounting seat; 204. Pin; 205. Connecting block; 206. Connecting buckle; 207. Connecting groove; 208. Connecting slot; 209. Reinforcement rib; 210. Limiting plate; 211. Fixing block; 212. Fixing groove; 213. Protrusion; 214. Fixing through hole; 215. Fixing hole; 216. Mounting platform; 217. Mounting cover; 218. Mounting block; 31. Primary winding; 32. Secondary winding; 33. Iron core; 34. Varistor; 35. Transient suppression diode; 36. Heat conducting plate; 37. Heat sink Plate; 41. Insulating partition; 42. Rubber plate; 43. Positioning protrusion; 44. Positioning groove; 45. Positioning sleeve; 46. Positioning column; 51. Locking cover; 52. Locking column; 53. Sliding plate; 54. Sliding groove; 55. Sliding screw; 56. Pressing plate; 57. Limiting column; 58. Fixed block; 601. Adjusting groove; 602. Limiting groove; 603. Adjusting block; 604. Adjusting plate; 605. Adjusting through hole; 606. Adjusting hole; 607. Lifting block; 608. Protective cover; 609. Protective cover; 610. Adjusting slot; 611. Positioning block; 612. Positioning slot. DETAILED DESCRIPTION

[0034] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solutions of the present invention, but are not intended to limit the scope of protection of the present invention.

[0035] Example 1: Figures 1 to 12As shown, the present invention provides a surge-proof transformer skeleton, including a connecting sleeve 11, which is located at the central connection position of the entire transformer skeleton. Skeletons 201 are placed at both ends of the connecting sleeve 11, and both ends are inserted into the interior of the skeleton 201, so that the two groups of skeletons 201 are symmetrically distributed on the left and right; the primary winding 31 is sleeved on one group of skeletons 201, and the secondary winding 32 is sleeved on the other group of skeletons 201, and the two correspond to each other, laying the foundation for the subsequent electromagnetic conversion function. Both ends of the skeleton 201 are equipped with isolation plates 202. The isolation plates 202 have certain insulation properties. The primary winding 31 and the secondary winding 32 are respectively located between multiple groups of isolation plates 202. The isolation plates 202 play a preliminary role in separation and protection, reducing electrical problems that may occur between the windings. At the same time, the skeleton 201 forms winding grooves through two groups of isolation plates 202. The depth of one group of winding grooves is deeper than the depth of the other group of winding grooves. The secondary winding 32 is wound in the deep winding groove, so that the primary winding 31 and the secondary winding 32 form a stepped shape. This stepped structure can effectively increase the creepage distance between the windings. When facing complex electrical environments such as surge impacts, it reduces the risk of short circuits between the windings, and ensures the stable operation of the transformer. One or more groups of insulating plates are also arranged between the two groups of skeletons 201. The insulating plates are sleeved on the connecting sleeve 11 to strengthen the overall insulation protection capability and prevent current from flowing where it should not flow. Two sets of iron cores 33 are mounted on two sets of skeletons 201, respectively, to provide the necessary magnetic circuit conditions for transformer operation. A locking assembly is provided on one side of one set of isolation plates 202 on the skeleton 201. The iron core 33 is located between the isolation plate 202 and the locking assembly. The locking assembly can fix the iron core 33 so that it will not easily move during operation, ensuring the stability of the magnetic circuit. A mounting base 203 is also provided at the bottom of the isolation plate 202. The mounting base 203 is provided with multiple sets of pins 204. The pins 204 are arranged in a staggered manner with adjacent pins 204. This arrangement increases the creepage distance between the pins 204 and reduces some potential risks, such as surge current causing a short circuit in the pins 204, ensuring that the transformer can operate relatively smoothly.

[0036] like Figure 2 、 Figure 5 、 Figure 8As shown, the insulating plate includes an insulating partition 41, and rubber plates 42 are arranged on both sides of the insulating partition 41. They cooperate with each other to work together. There are also positioning protrusions 43 on both sides of the insulating partition 41. Correspondingly, a positioning groove 44 is opened on the rubber plate 42, and the positioning protrusion 43 is inserted into the positioning groove 44. The rubber plate 42 can fit on the surface of the insulating plate, which not only makes the overall structure of the insulating plate more stable, but also enhances the insulation performance; multiple groups of positioning sleeves 45 are provided on one side of the isolation plate 202 corresponding to the two groups of skeletons 201, and a movable positioning column 46 is arranged inside the positioning sleeve 45, and a first spring is also provided in the positioning sleeve 45. One end of the first spring is connected to the positioning sleeve 45, and the other end is connected to the positioning column 46. One end of the positioning column 46 is in contact with the insulating plate. Such a structure can buffer external vibration or impact to a certain extent, ensure that the insulating plate is always in a suitable position, and maintain a stable insulation state.

[0037] Between the two sets of isolation panels 202 corresponding to the two sets of skeletons 201, one set of isolation panels 202 has several sets of connecting blocks 205 on one side, while the other set of isolation panels 202 has multiple sets of connecting clips 206 on the other side. The connecting blocks 205 are provided with connecting slots 207 and connecting clips 208. The connecting clips 206 can be smoothly inserted into the connecting slots 207 and snapped into the connecting clips 208, allowing the two sets of skeletons 201 to be detachably connected, facilitating subsequent maintenance and repair operations. At the same time, multiple sets of reinforcing ribs 209 are evenly distributed at the four corners of the two sets of skeletons 201 and the interior of the connecting sleeve 11. These reinforcing ribs 209 are arranged at equal distances, providing the necessary strength support for the entire skeleton 201, making it more stable during use. The insulating partition 41 is made of polyimide, which has good insulation properties and can effectively resist the impact of high voltage. The two sets of frames 201 and the connecting sleeve 11 are both made of phenolic plastic, which has a certain mechanical strength and can meet basic insulation requirements. The two complement each other to ensure the reliable operation of the frame 201.

[0038] like Figure 2 、 Figure 6 、 Figure 9 、 Figure 12As shown, the locking assembly includes a locking cover plate 51. Multiple sets of limiting plates 210 are neatly arranged on one side of one set of isolation plates 202 on the frame 201. The iron core 33 is clamped between these limiting plates 210. The limiting plates 210 constrain the iron core 33 from both sides to prevent it from moving freely. The locking cover plate 51 is connected to one set of limiting plates 210 via a hinge structure, allowing the locking cover plate 51 to rotate around the hinge to achieve an opening and closing action. A fixing block 211 is mounted on the other set of limiting plates 210. Correspondingly, a fixing block 58 is provided on the locking cover plate 51. The fixing block 211 has a fixing slot 212. When the locking cover plate 51 is closed, the fixing block 58 snaps into the fixing slot 212, forming a covering structure between the locking cover plate 51 and the frame 201, providing all-round protection for the iron core 33 inside. There are also multiple groups of protrusions 213 on one side of the locking cover 51. These protrusions 213 are semicircular and evenly distributed on one side of the cover. Each protrusion 213 is in contact with the iron core 33, which can compress the iron core 33 to a certain extent and reduce the vibration of the iron core 33 during operation.

[0039] The locking assembly also includes multiple sets of locking posts 52. Fixed through-holes 214 are defined at both ends of the fixed block 211. The fixed through-holes 214 and the fixed slots 212 intersect with each other. Correspondingly, the fixed block 58 has fixed holes 215 corresponding to the fixed through-holes 214. The locking posts 52 can be inserted into the fixed through-holes 214, and one end of the locking posts can accurately penetrate into the fixed hole 215, further strengthening the connection between the fixed block 58 and the fixed block 211. A sliding plate 53 is provided at the other end of the locking posts 52. The sliding plate 53 has a sliding slot 54 defined thereon. The fixed block 211 also has a sliding hole corresponding to the sliding slot 54. A sliding screw 55 passes through the sliding slot 54 and is retained in the sliding hole, achieving a slidable connection between the locking posts 52 and the fixed block 211, facilitating operation during installation and removal.

[0040] The two sets of sliding plates 53 are staggered and in contact with each other. A pressing plate 56 is mounted at one end of the sliding plate 53, and a second spring is positioned between the two sets of pressing plates 56. Furthermore, limit posts 57 are fixed to the corresponding surfaces of both sets of pressing plates 56. The second spring fits over the two sets of limit posts 57, and both ends of the second spring are connected to the two sets of pressing plates 56. When disassembly or adjustment is required, pressing the pressing plate 56 allows for easy manipulation of the locking assembly through the expansion and contraction of the spring and the linkage of the various components, facilitating maintenance. The various components of the entire locking assembly work together to ensure the stability of the iron core 33 and the normal operation of the transformer.

[0041] like Figure 2 、 Figure 3 、 Figure 10As shown, the mounting base 203 is provided with multiple sets of adjustment slots 601, which are offset from each other. The pins 204 pass through the adjustment slots 601 and can slide on the mounting base 203, providing convenience for subsequent adjustment of the position of the pins 204. At the same time, the mounting base 203 is also provided with multiple sets of limit slots 602, which are located at the top of the adjustment slots 601 and serve as limiters. The pins 204 are integrally formed with adjustment blocks 603. When the pins 204 are inserted into the adjustment slots 601, the adjustment blocks 603 snap into the limit slots 602, effectively preventing the pins 204 from excessive displacement or falling out of the adjustment slots 601. An adjustment plate 604 is fixed on the top of the adjustment block 603. The adjustment plate 604 is provided with an adjustment through-hole 605. Correspondingly, the mounting base 203 is also provided with an adjustment hole 606 at the corresponding position. The adjustment screw passes through the adjustment through-hole 605 and is firmly inserted into one of the adjustment holes 606, further fixing the position of the pin 204 so that it remains stationary when it needs to be stable. At the same time, a detachable lifting block 607 is installed on the top of the pin 204 to facilitate the operation of the pin 204 during the installation and removal process, avoiding damage caused by directly grasping the pin 204. In addition, a protective cover 608 is also provided on the pin 204. The protective cover 608 can resist possible physical damage and corrosion from the outside, ensuring that the pin 204 can work normally in complex environments and maintain the overall stability of the transformer.

[0042] like Figure 2 、 Figure 7As shown, a mounting platform 216 is placed on top of one set of isolation plates 202 of the skeleton 201. A mounting cover 217 is correspondingly positioned above the mounting platform 216. Multiple sets of mounting blocks 218 are distributed on the mounting platform 216. The mounting cover 217 can be snapped between these multiple sets of mounting blocks 218, thereby achieving a detachable connection between the mounting cover 217 and the mounting platform 216. The two sets of mounting cavities are respectively provided with a varistor 34 and a transient suppression diode 35. The varistor 34 is connected to the primary winding 31 via a wire. When a surge voltage occurs in the circuit and the voltage exceeds the threshold of the varistor 34, it changes its resistance, bypassing the surge current and protecting the primary winding 31 from excessive voltage shocks. The varistor 34 can be a MOV-14D431K varistor. Similarly, a transient suppressor diode 35 is connected to the secondary winding 32, providing voltage regulation protection for the output of the secondary winding 32 and preventing surges from interfering with the secondary-side electrical equipment. The transient suppressor diode 35 can be an SMBJ15CA transient suppressor diode. Heat conducting plates 36 are provided on both sides of the connecting sleeve 11. These plates are mounted on the two sets of skeletons 201, the connecting sleeve 11, and the two sets of iron cores 33 to absorb the heat generated by these components during operation. Furthermore, multiple sets of heat sinks 37 are also provided on the heat conducting plates 36. Adjacent heat sinks 37 form a heat dissipation duct, allowing hot air to flow through the duct, accelerating heat dissipation to the surrounding environment and ensuring that the overall temperature of the transformer remains within a normal range, guaranteeing its stable operation.

[0043] Example 2: Based on the surge-proof transformer bobbin provided in Example 1 of this application, Example 2 of this application proposes a surge-proof transformer bobbin. This Example 2 is merely a preferred embodiment of Example 1, and the implementation of Example 2 will not affect the independent implementation of Example 1. Example 2 of the present invention will be further described below.

[0044] like Figure 2 、 Figure 4 、 Figure 11As shown, the mounting base 203 is provided with multiple sets of adjustment slots 601, which are offset from each other, and the pins 204 pass through the adjustment slots 601. At the same time, the mounting base 203 is also provided with a removable protective cover 609, which corresponds to the position of the adjustment slots 601 and has corresponding adjustment slots 610. The pins 204 pass through the adjustment slots 601, and one end of the pins 204 is provided with a lifting block 607 after passing through the adjustment slots 601, which facilitates the operation of the pins 204. The pins 204 can slide on the mounting base 203 to meet different installation requirements. There are also multiple sets of limit slots 602 above the mounting base 203. These limit slots 602 are located at the top of the adjustment slots 601. The adjustment blocks 603 on the pins 204 can be snapped into the limit slots 602, limiting the upward and downward movement of the pins 204. Adjustment block 603 is equipped with positioning blocks 611 on both sides. Corresponding positioning slots 612 are provided on mounting base 203. Multiple sets of positioning slots 612 are symmetrically distributed on both sides of retaining slot 602. Positioning blocks 611 are positioned within one set of positioning slots 612, further stabilizing the position of pin 204. Furthermore, multiple sets of third springs are positioned between adjustment block 603 and protective cover 609. These springs are positioned over pin 204. When pin 204 is moved, an upward force is generated by handle block 607. When this force is applied, the third springs contract, causing positioning blocks 611 to exit positioning slots 612, moving pin 204. Positioning blocks 611 then engage within another set of positioning slots 612, completing the adjustment of pin 204. Pin 204 is also covered with a protective cover 608, which protects against external impacts and corrosion, ensuring stable operation of pin 204 and maintaining the normal operation of the entire device.

[0045] The difference between the second embodiment and the first embodiment is that a removable protective cover 609 is added to the mounting base 203. The protective cover 609 has an adjustment slot 610 corresponding to the position of the adjustment slot 601, providing additional protection for the pin 204. At the same time, the positioning blocks 611 on both sides of the adjustment block 603 cooperate with the positioning slots 612 symmetrically distributed on both sides of the limit slot 602 on the mounting base 203. Through the application of force by the carrying block 607 and the expansion and contraction of the third spring mounted on the pin 204, the positioning block 611 is switched between different positioning slots 612, completing the convenient adjustment of the pin 204. There is no need to remove the adjustment screw, which improves the adjustment efficiency and reduces the risk of thread wear caused by frequent turning of the adjustment screw, thereby extending the service life of the mounting base 203 and related components. When adapting to different specifications of circuit boards or upgrading equipment, this convenient adjustment method can save a lot of time, making the entire transformer installation and commissioning process smoother and more efficient. The remaining conditions are consistent with the first embodiment and are not further described in this embodiment.

[0046] The basic principles, main features and advantages of the present invention are shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A surge-proof transformer frame, comprising a connecting sleeve (11), characterized in that: Both ends of the connecting sleeve (11) are provided with a skeleton (201), and both ends of the connecting sleeve (11) are inserted into the skeleton (201). Two groups of the skeletons (201) are symmetrically distributed. The primary winding (31) is sleeved on one group of the skeletons (201), and the secondary winding (32) is sleeved on the other group of the skeletons (201). Both ends of the skeleton (201) are provided with an isolation plate (202), and the primary winding (31) and the secondary winding (32) are respectively located between multiple groups of the isolation plates (202). One or more groups of insulating plates are provided between the two groups of the skeletons (201), and the insulating plates are sleeved on the connecting sleeve (11). Two groups of iron cores (33) are respectively mounted on two groups of the skeletons (201); a locking assembly is provided on one side of one group of the isolation plates (202) on the skeleton (201); the iron core (33) is located between the isolation plates (202) and the locking assembly; a mounting seat (203) is further provided at the bottom of the isolation plates (202); a plurality of groups of pins (204) are provided on the mounting seat (203); the pins (204) and adjacent pins (204) are arranged in a staggered manner; a plurality of groups of adjustment slots (601) are provided on the mounting seat (203); the adjustment slots (601) and adjacent adjustment slots (601) are arranged in a staggered manner; The pin (204) is inserted into the adjustment groove (601) and is slidably connected to the mounting seat (203); a plurality of limit grooves (602) are provided on the mounting seat (203), and the limit grooves (602) are located at the top of the adjustment groove (601); an adjustment block (603) is provided on the pin (204), and the adjustment block (603) is clamped in the limit groove (602); an adjustment plate (604) is provided on the top of the adjustment block (603), and an adjustment through hole (605) is provided on the adjustment plate (604); an adjustment hole (606) is provided on the mounting seat (203) corresponding to the adjustment through hole (605), and an adjustment screw (606) is provided. The nail passes through the adjustment through hole (605) and is stuck in one group of the adjustment holes (606); a detachable lifting block (607) is provided on the top of the pin (204), and a protective cover (608) is also provided on the pin (204); the insulating plate includes an insulating partition (41), and rubber plates (42) are provided on both sides of the insulating partition (41), and positioning protrusions (43) are provided on both sides of the insulating partition (41), and the rubber plate (42) is provided with a positioning groove (44) corresponding to the positioning protrusion (43), and the positioning protrusion (43) is inserted into the positioning groove (44), and the rubber plate (42) is in contact with the surface of the insulating plate;Multiple groups of positioning sleeves (45) are provided on one side of the isolation plate (202) corresponding to the two groups of the skeletons (201), and a movable positioning column (46) is provided in the positioning sleeve (45). A first spring is provided in the positioning sleeve (45), one end of the first spring is connected to the positioning sleeve (45), and the other end is connected to the positioning column (46), and one end of the positioning column (46) is in contact with the insulating plate; the locking assembly includes a locking cover (51), and multiple groups of limiting plates (210) are provided on one side of one group of the isolation plates (202) on the skeleton (201), and the iron core (33) is clamped between the multiple groups of limiting plates (210). The locking cover (51) is rotatably connected to one group of the limiting plates (210) via a hinge structure, and a fixing block (211) is provided on the other group of the limiting plates (210). The locking cover (51) is provided with a fixing block (58), and the fixing block (211) is provided with a fixing groove (212). The fixing block (58) is clamped in the fixing groove (212). A covering structure is formed between the locking cover (51) and the frame (201). One side of the locking cover (51) is provided with multiple groups of protrusions (213), and the protrusions (213) are arranged in a semicircular shape. The multiple groups of protrusions (213) are in contact with the iron core (33).

2. The surge-proof transformer bobbin according to claim 1, characterized in that: In the two groups of isolation plates (202) corresponding to the two groups of skeletons (201), one side of one group of isolation plates (202) is provided with multiple groups of connection blocks (205), and one side of the other group of isolation plates (202) is provided with multiple groups of connection buckles (206), the connection blocks (205) are provided with connection grooves (207) and connection buckles (208), the connection buckles (206) are passed through the connection grooves (207) and are clamped on the connection buckles (208), and the two groups of skeletons (201) are detachably connected; the four corners of the two groups of skeletons (201) and the internal of the connection sleeve (11) are provided with multiple groups of reinforcing ribs (209), and the multiple groups of reinforcing ribs (209) are arranged at equal intervals.

3. The surge-proof transformer bobbin according to claim 2, characterized in that: The insulating partition (41) is made of polyimide, and the two sets of skeletons (201) and the connecting sleeve (11) are both made of phenolic plastic.

4. The surge-proof transformer bobbin according to claim 1, characterized in that: The locking assembly further comprises a plurality of locking columns (52), both ends of the fixing block (211) are provided with fixing through holes (214), the fixing through holes (214) are communicated with the fixing grooves (212), the fixing block (58) is provided with fixing holes (215) corresponding to the fixing through holes (214), the locking column (52) is passed through the fixing through holes (214), one end of the locking column (52) is passed through the fixing hole (215), and the other end is provided with a sliding plate (53); a sliding groove (54) is provided on the sliding plate (53), the fixing block (211) is provided with a sliding hole corresponding to the sliding groove (54), a sliding screw (55) passes through the sliding groove (54) and is clamped in the sliding hole, and the locking column (52) is slidably connected to the fixing block (211).

5. The surge-proof transformer bobbin according to claim 4, characterized in that: The two groups of sliding plates (53) are staggered and in contact with each other, a pressing plate (56) is provided at one end of the sliding plate (53), a second spring is provided between the two groups of pressing plates (56), and limiting columns (57) are provided on corresponding surfaces of the two groups of pressing plates (56), the second spring is sleeved on the two groups of limiting columns (57), and both ends of the second spring are connected to the two groups of pressing plates (56) respectively.

6. The surge-proof transformer bobbin according to claim 1, characterized in that: The mounting seat (203) is provided with a plurality of adjustment slots (601), the adjustment slots (601) and the adjacent adjustment slots (601) are arranged in a staggered manner, the mounting seat (203) is provided with a detachable protective cover (609), the protective cover (609) is provided with an adjustment slot (610) corresponding to the adjustment slot (601), the pin (204) is inserted into the adjustment slot (601), one end of the pin (204) passes through the adjustment slot (601) and is provided with a lifting block (607), the pin (204) is slidably connected to the mounting seat (203); the mounting seat (203) is provided with a plurality of limit slots (602), the limit slots (602) are located in the adjustment slot (601) and the limit slots (601) are located in the adjustment slot (601) and the limit slots (602) are located in the adjustment slot (601) and the limit slots (610 ...10) are located in the adjustment slot (601) ) top, an adjusting block (603) is provided on the pin (204), and the adjusting block (603) is clamped in the limiting groove (602); positioning blocks (611) are provided on both sides of the adjusting block (603), and a positioning card slot (612) is provided on the mounting seat (203) corresponding to the positioning block (611), and multiple groups of the positioning card slots (612) are symmetrically distributed on both sides of the limiting groove (602), and the positioning block (611) is clamped in one group of the positioning card slots (612); multiple groups of third springs are provided between the adjusting block (603) and the protective cover (609), and the third springs are sleeved on the pin (204), and the pin (204) is also sleeved with a protective cover (608).

7. The surge-proof transformer bobbin according to claim 1, characterized in that: A mounting platform (216) is provided on the top of one of the isolation plates (202) on the frame (201), a mounting cover (217) is provided above the mounting platform (216), a plurality of mounting blocks (218) are provided on the mounting platform (216), the mounting cover (217) is clamped between the plurality of mounting blocks (218), the mounting cover (217) and the mounting platform (216) are detachably connected to form a mounting cavity, and a varistor (34) and a transient suppression diode ( 35), the varistor (34) is connected to the primary winding (31), and the transient suppression diode (35) is connected to the secondary winding (32); heat conducting plates (36) are provided on both sides of the connecting sleeve (11), and the heat conducting plates (36) are sleeved on two groups of the skeletons (201) and the connecting sleeves (11) and two groups of the iron cores (33); multiple groups of heat dissipation plates (37) are provided on the heat conducting plates (36), and heat dissipation ducts are formed between the heat dissipation plates (37) and adjacent heat dissipation plates (37).

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