Transformer framework capable of preventing surge impact

Abstract

The invention provides a transformer framework capable of preventing surge impact, and belongs to the technical field of transformers, the transformer framework comprises a connecting sleeve, two ends of the connecting sleeve are sleeved with frameworks, and a primary winding and a secondary winding are respectively sleeved on the two groups of frameworks; isolation plates are arranged at the two ends of the frameworks, one or more sets of insulating plates are arranged between the two sets of frameworks, and the insulating plates are arranged on the connecting sleeves in a sleeving mode; the two groups of iron cores are respectively mounted on the two groups of frameworks, a locking assembly is arranged on one side of one group of isolation plates on the frameworks, the iron cores are positioned between the isolation plates and the locking assembly, mounting seats are further arranged at the bottoms of the isolation plates, a plurality of groups of pins are arranged on the mounting seats, and the adjacent pins are arranged in a staggered manner. According to the transformer framework, the isolation plate is arranged between the two groups of frameworks, so that the insulation effect is enhanced, and breakdown short circuit between windings caused by surge voltage can be effectively blocked; and meanwhile, the pins are arranged on the mounting seat in a staggered manner, so that the creepage distance between the pins is increased, and the probability of short circuit caused by surge current at the pins is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of transformers, and more specifically, particularly relates to a transformer skeleton for preventing surge impact. 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, and can effectively ensure that the electrical appliances obtain the appropriate voltage and operate stably and continuously. The transformer skeleton is an indispensable basic supporting structure in the transformer, which provides a stable winding support for the transformer winding and fixes 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 different situations. For example, in thunderstorms, lightning currents may be conducted 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 skeletons usually only have simple insulation protection structures, weak isolation measures between windings, insufficient electrical clearance and creepage distance, and cannot effectively resist the effects of surge shocks, which can easily lead to short circuits between transformer windings, insulation breakdown and other faults, which not only affect the normal operation of the transformer itself, but may also further cause safety hazards 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, thereby affecting the normal operation of the transformer.

[0005] The purpose and effect of the surge-proof transformer skeleton of the present invention are achieved by the following specific technical means: A surge-proof transformer skeleton comprises a connecting sleeve, skeletons are arranged at both ends of the connecting sleeve, and both ends of the connecting sleeve are inserted into the skeletons, and two groups of the skeletons are symmetrically distributed, the primary winding is sleeved on one group of the skeletons, and the secondary winding is sleeved on the other group of the skeletons; isolation plates are arranged at both ends of the skeletons, the primary winding and the secondary winding are respectively located between multiple groups of the isolation plates, and one or more groups of insulating plates are arranged between the two groups of the skeletons, and the insulating plates are sleeved on the connecting sleeve; two groups of iron cores are respectively installed on the two groups of the skeletons, a locking assembly is arranged on one side of one group of the isolation plates on the skeleton, the iron core is located between the isolation plate and the locking assembly, and a mounting seat is also arranged at the bottom of the isolation plate, and multiple groups of pins are arranged on the mounting seat, and the pins are staggered with adjacent pins.

[0006] 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.

[0007] According to a preferred embodiment, in the two groups of isolation plates corresponding to the two groups of the skeletons, one side of one group of the isolation plates is provided with multiple groups of connecting blocks, and one side of the other group of the isolation plates is provided with multiple groups of connecting clips, and the connecting blocks are provided with connecting grooves and connecting clips, and the connecting clips are passed through the connecting grooves and clamped on the connecting clips, so that the two groups of the skeletons can be detachably connected; the two groups of the 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.

[0008] According to a preferred embodiment, the insulating partition is made of polyimide, and the two groups of skeletons and the connecting sleeve are made of phenolic plastic.

[0009] According to a preferred embodiment, the locking assembly includes a locking cover plate, a plurality of groups of limit plates are arranged on one side of one group of the isolation plates on the skeleton, the iron core is clamped between the plurality of groups of limit plates, the locking cover plate is rotatably connected to one group of the limit plates through a hinge structure, a fixing block is arranged on the other group of the limit plates, a fixing block is arranged on the locking cover plate, a fixing groove is opened on the fixing block, the fixing block is clamped in the fixing groove, a covering structure is formed between the locking cover plate and the skeleton, a plurality of groups of protrusions are arranged on one side of the locking cover plate, the protrusions are arranged in a semicircular shape, and the plurality of groups of protrusions are in contact with the iron core.

[0010] 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 the other end is provided with a sliding plate; 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.

[0011] 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 both ends of the second spring are respectively connected to the two groups of pressing plates.

[0012] According to a preferred embodiment, the mounting seat is provided with a plurality of groups of adjustment grooves, the adjustment grooves are staggered with adjacent adjustment grooves, the pins are inserted into the adjustment grooves, and are slidably connected to the mounting seat; the mounting seat is provided with a plurality of groups of limit grooves, the limit grooves are located at the top of the adjustment grooves, the pins are provided with adjustment blocks, and the adjustment blocks are clamped in the limit grooves; an adjustment plate is provided at the top of the adjustment block, and an adjustment through hole is provided on the adjustment plate, and the mounting seat is provided with adjustment holes corresponding to the adjustment through holes, and the adjustment screw passes through the adjustment through hole and is clamped in one of the groups of adjustment holes; a detachable carrying block is provided at the top of the pin, and the pin is also provided with a protective cover.

[0013] According to a preferred embodiment, the mounting seat is provided with a plurality of groups of adjustment slots, the adjustment slots are arranged in a staggered manner with adjacent adjustment slots, 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 inserted into the adjustment slot, one end of the pin passes through the adjustment slot and is provided with a lifting block, and the pin is slidably connected to the mounting seat; the mounting seat is provided with a plurality of groups of limit slots, the limit slots are 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 adjustment block, the mounting seat is provided with positioning slots corresponding to the positioning block, a plurality of groups of the positioning slots are symmetrically distributed on both sides of the limit slot, and the positioning block is clamped in one group of the positioning slots; a plurality of groups of third springs are provided between the adjustment block and the protective cover, the third springs are sleeved on the pin, and the pin is also sleeved with a protective cover.

[0014] 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, a plurality of mounting blocks are provided on the mounting platform, the mounting cover is clamped between the plurality of mounting blocks, the mounting cover is detachably connected to the mounting platform to form a mounting cavity, a varistor and a transient suppression diode are respectively provided in the two groups of the mounting cavities, the varistor is connected to the primary winding, and the transient suppression diode is 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, the connecting sleeves and the two groups of the iron cores, a plurality 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.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 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 fixing, but also enhance the insulation effect, and can effectively prevent the breakdown short circuit between windings caused by surge voltage. At the same time, a locking assembly is provided on one of the isolation plates on the skeleton, through which the iron core can be firmly fixed to prevent its displacement under surge impact and affect the stability of the magnetic circuit; multiple sets of pins are installed on the mounting seat, and the multiple sets of pins are staggered, which increases the creepage distance between the pins. With the pin protection cover, the probability of surge current causing a short circuit at the pin is reduced. A varistor connected to the primary winding and a transient suppression diode connected to the secondary winding are respectively arranged in the installation cavity of the skeleton. When a surge impact comes, the varistor is turned on at the moment the voltage exceeds the threshold to bypass the surge current, and the transient suppression diode protects the secondary winding output. The double protection ensures that the transformer is protected from surge damage and maintains stable operation.

[0016] 2. The two sets of skeletons are detachably connected through connecting blocks and connecting buckles, which is convenient for quick disassembly and assembly during production assembly, fault repair or upgrading and transformation, 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 seat are connected to the mounting seat by sliding. Through the adjustment slot, limit slot, adjustment block, adjustment screw and other structures, the pin position 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 plate in the locking assembly is connected to the limit plate through a hinge structure, and cooperates with the fixed block, fixed card block and slidable locking column. The operation is simple and quick, and the installation and removal of the core can be easily realized. In addition, the core status can be quickly checked during daily maintenance to ensure the long-term stability of the transformer magnetic circuit.

[0017] 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 is always within a safe range when the transformer generates additional heat after long-term operation or encountering a surge impact. A positioning sleeve is provided on one side of the corresponding isolation plate on the two groups 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 to maintain good insulation and protection effects. The installation cavity formed by the mounting table 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, comprehensively improving the reliability and stability of the transformer and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the structure of the first embodiment of the present invention after assembly; Figure 2 It is a schematic diagram of the structure after the disassembly of the first embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the pin and the mounting base after being separated in the first embodiment of the present invention; 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; Figure 5 It is a schematic diagram of the structure after the insulation board is disassembled; Figure 6 It is a schematic diagram of the structure after the locking assembly is disassembled; Figure 7 This is a schematic diagram of the structure after the varistor and transient suppression diode are separated; Figure 8 It is a schematic diagram of the structure after the skeleton is split; Fig. 9 It is a structural schematic diagram of a locking cover; Fig.10 yes Figure 3 A partial enlarged view of area a in the middle; Fig.11 yes Figure 4 A partial enlarged view of area b; Fig.12 It is a schematic diagram of the structure of the locking column.

[0019] In the figure, the corresponding relationship between the component names and the figure numbers is as follows: 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. Reinforcing rib; 210. Limiting plate; 211. Fixing block; 212. Fixing groove; 213. Protrusion; 214. Fixing through hole; 215. Fixing hole; 216. Mounting table; 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 dissipation 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, fixing 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

[0020] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the technical solutions of the present invention, but cannot be used to limit the scope of protection of the present invention.

[0021] Embodiment 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, and skeletons 201 are arranged at both ends of the connecting sleeve 11, and both ends thereof are inserted into the inside 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, which 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 is formed with winding grooves through two groups of isolation plates 202, one of which is deeper than the other, and the secondary winding 32 is wound in the deep winding groove, so that the primary winding 31 and the secondary winding 32 form a ladder shape. This ladder-like structure can effectively increase the creepage distance between the windings, and 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 in places where it should not flow. Two groups of iron cores 33 are respectively installed on two groups of skeletons 201 to provide the necessary magnetic circuit conditions for the operation of the transformer. A locking assembly is provided on one side of one group of isolation plates 202 on the skeleton 201, and 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 move easily during operation, thereby ensuring the stability of the magnetic circuit. A mounting seat 203 is also provided at the bottom of the isolation plate 202, and 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. Such an arrangement increases the creepage distance between the pins 204 and reduces some potential risks, such as the situation where the surge current causes the pin 204 to short-circuit, thereby ensuring that the transformer can operate relatively smoothly.

[0022] 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, which cooperate with each other to work together. There are also positioning protrusions 43 on both sides of the insulating partition 41, and correspondingly, a positioning groove 44 is opened on the rubber plate 42, and the positioning protrusion 43 is inserted into the positioning groove 44, so that 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; a plurality of positioning sleeves 45 are arranged 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 arranged 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. 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.

[0023] Between the two groups of isolation plates 202 corresponding to the two groups of skeletons 201, one side of one group of isolation plates 202 has several groups of connection blocks 205, and the other side of the isolation plates 202 has several groups of connection buckles 206. The connection blocks 205 are provided with connection slots 207 and connection buckles 208. The connection buckles 206 can be smoothly inserted into the connection slots 207 and stuck on the connection buckles 208, so that the two groups of skeletons 201 can be detachably connected, which is convenient for subsequent maintenance, inspection and other operations. At the same time, the two groups of skeletons 201 and the four corners inside the connection sleeve 11 are evenly distributed with multiple groups of reinforcing ribs 209, which are arranged at the same distance, providing the necessary strength support for the entire skeleton 201, making it more stable during use. The insulating partition 41 is made of polyimide material, which has good insulation properties and can effectively resist the impact of high voltage. The two sets of skeletons 201 and the connecting sleeve 11 are made of phenolic plastic material, which has a certain mechanical strength and can meet basic insulation requirements. The two complement each other to ensure the reliable operation of the skeleton 201.

[0024] like Figure 2 , Figure 6 , Fig. 9 , Fig.12As shown, the locking assembly includes a locking cover plate 51. On one side of one group of isolation plates 202 on the frame 201, multiple groups of limit plates 210 are neatly arranged. The iron core 33 is stuck between these limit plates 210. The limit plates 210 constrain the iron core 33 from both sides to prevent it from moving at will. The locking cover plate 51 is connected to one group of limit plates 210 through a hinge structure, so that the locking cover plate 51 can rotate around the hinge to achieve an opening and closing action; a fixing block 211 is installed on the other group of limit plates 210, and correspondingly, a fixing block 58 is provided on the locking cover plate 51, and a fixing groove 212 is opened on the fixing block 211. When the locking cover plate 51 is closed, the fixing block 58 is stuck in the fixing groove 212, and a covering structure is formed between the locking cover plate 51 and the frame 201, providing all-round protection for the internal iron core 33. A plurality of groups of protrusions 213 are also provided on one side of the locking cover plate 51. These protrusions 213 are semicircular and evenly distributed on one side of the cover plate. 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.

[0025] The locking assembly also includes 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 and the fixing grooves 212 are interpenetrating. Accordingly, the fixing block 58 is provided with fixing holes 215 at positions corresponding to the fixing through holes 214. The locking column 52 can be inserted into the fixing through holes 214, and one end thereof can also be accurately inserted into the fixing hole 215, further strengthening the connection between the fixing block 58 and the fixing block 211. A sliding plate 53 is provided at the other end of the locking column 52. The sliding plate 53 is provided with a sliding groove 54. The fixing block 211 is also provided with a sliding hole corresponding to the sliding groove 54. The sliding screw 55 passes through the sliding groove 54 and is stuck in the sliding hole, thereby realizing a slidable connection between the locking column 52 and the fixing block 211, which is convenient for operation during installation and disassembly.

[0026] The two sets of sliding plates 53 are staggered and contact each other. A pressing plate 56 is installed at one end of the sliding plate 53. A second spring is placed between the two sets of pressing plates 56. At the same time, the corresponding surfaces of the two sets of pressing plates 56 are fixed with limiting columns 57. The second spring is sleeved on the two sets of limiting columns 57, and the two ends of the second spring are respectively connected to the two sets of pressing plates 56. When disassembly or adjustment is required, the pressing plate 56 is pressed. Through the expansion and contraction of the spring and the linkage of various components, the partial structure of the locking assembly can be easily controlled, which provides convenience for maintenance work. The various components of the entire locking assembly cooperate with each other to ensure the stability of the iron core 33 and the normal operation of the transformer.

[0027] like Figure 2 , Figure 3 , Fig.10As shown, the mounting seat 203 is provided with multiple groups of adjustment slots 601, and the adjustment slots 601 are misaligned with the adjacent adjustment slots 601. The pin 204 passes through the adjustment slots 601 and can slide on the mounting seat 203, which provides convenience for the subsequent adjustment of the position of the pin 204. At the same time, the mounting seat 203 is also provided with multiple groups of limiting slots 602, which are located at the top position of the adjustment slot 601 and play a limiting role. The pin 204 is integrally formed with an adjustment block 603. When the pin 204 is inserted into the adjustment slot 601, the adjustment block 603 is snapped into the limiting slot 602, effectively preventing the pin 204 from excessive displacement or falling out of the adjustment slot 601. An adjustment plate 604 is fixed on the top of the adjustment block 603, and an adjustment through hole 605 is provided on the adjustment plate 604. Correspondingly, an adjustment hole 606 is also provided at the corresponding position of the mounting seat 203. After the adjustment screw passes through the adjustment through hole 605, it is firmly inserted into one of the groups of 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, which is convenient for operating the pin 204 during the installation and disassembly process, and avoids damage caused by directly grasping the pin 204. In addition, a protective cover 608 is also provided on the pin 204, which can resist possible physical damage and corrosion from the outside, ensure that the pin 204 works normally in a complex environment, and maintain the overall stability of the transformer.

[0028] like Figure 2 , Figure 7As shown, a mounting platform 216 is arranged on the top of one group of isolation plates 202 of the skeleton 201, and a mounting cover 217 is arranged above the mounting platform 216. Multiple groups of mounting blocks 218 are distributed on the mounting platform 216, and the mounting cover 217 can be inserted between the multiple groups of mounting blocks 218. The mounting cover 217 and the mounting platform 216 are detachably connected, and the two are connected to form a relatively closed mounting cavity. A varistor 34 and a transient suppression diode 35 are respectively arranged in the two groups of mounting cavities. The varistor 34 is connected to the primary winding 31 through a wire. When a surge voltage appears in the circuit and the voltage value exceeds the threshold of the varistor 34, it can change its own resistance, bypass the surge current, and protect the primary winding 31 from excessive voltage shock. The varistor 34 can use a MOV-14D431K varistor. Similarly, the transient suppression diode 35 is connected to the secondary winding 32 to provide voltage stabilization protection for the output of the secondary winding 32 to prevent surge interference with the electrical equipment on the secondary side. The transient suppression diode 35 can be an SMBJ15CA transient suppression diode. Heat conducting plates 36 are provided on both sides of the connecting sleeve 11. The heat conducting plates 36 are sleeved on the two groups of skeletons 201, the connecting sleeve 11 and the two groups of iron cores 33 to absorb the heat generated when these components are working; and multiple groups of heat dissipation plates 37 are also provided on the heat conducting plates 36. A heat dissipation air duct is formed between adjacent heat dissipation plates 37. Hot air flows in the air duct to accelerate the heat dissipation to the surrounding environment, ensuring that the overall temperature of the transformer is maintained within a normal range and ensuring its stable operation.

[0029] Embodiment 2: Based on the surge-proof transformer skeleton provided in Embodiment 1 of the present application, Embodiment 2 of the present application proposes a surge-proof transformer skeleton. Embodiment 2 is only a preferred embodiment of Embodiment 1, and the implementation of Embodiment 2 will not affect the independent implementation of Embodiment 1. Embodiment 2 of the present invention will be further described below.

[0030] like Figure 2 , Figure 4 , Fig.11As shown, the mounting seat 203 is provided with multiple groups of adjustment slots 601, and the adjustment slots 601 and the adjacent adjustment slots 601 are in a misaligned state, and the pin 204 passes through the adjustment slots 601; at the same time, the mounting seat 203 is also provided with a detachable protective cover 609, and the protective cover 609 corresponds to the position of the adjustment slot 601, and an adjustment slot 610 is correspondingly provided; the pin 204 passes through the adjustment slot 601, and one end of the pin 204 is sleeved with a lifting block 607 after passing through the adjustment slot 601, which facilitates the operation of the pin 204, and the pin 204 can slide on the mounting seat 203 to meet different installation requirements. There are also multiple groups of limit slots 602 above the mounting seat 203, and these limit slots 602 are located at the top of the adjustment slot 601, and the adjustment block 603 on the pin 204 can just fit into the limit slot 602, limiting the up and down movement of the pin 204. Both sides of the adjustment block 603 are provided with positioning blocks 611, and correspondingly, the mounting seat 203 is provided with positioning slots 612, and multiple groups of positioning slots 612 are symmetrically distributed on both sides of the limit slot 602, and the positioning block 611 is clamped in one group of positioning slots 612, further stabilizing the position of the pin 204. In addition, multiple groups of third springs are arranged between the adjustment block 603 and the protective cover 609, and the third springs are sleeved on the pin 204; when the pin 204 is moved, an upward external force is generated by the hand-carrying block 607, and when there is an external force, the third spring contracts, the positioning block 611 withdraws from the positioning slot 612, and the pin 204 is moved, and the positioning block 611 is clamped in another group of positioning slots 612, completing the adjustment of the pin 204. The pin 204 is also sleeved with a protective cover 608, which can resist some external collisions, corrosion, etc., to ensure the stable operation of the pin 204 and maintain the normal operation of the entire device.

[0031] The difference between the second embodiment and the first embodiment is that a detachable protective cover 609 is added to the mounting seat 203, and the protective cover 609 is provided with an adjustment slot 610 corresponding to the position of the adjustment slot 601, so as to provide additional protection for the pin 204; at the same time, the positioning blocks 611 on both sides of the adjustment block 603 are matched with the positioning slots 612 symmetrically distributed on both sides of the limit slot 602 on the mounting seat 203, and the positioning block 611 is switched between different positioning slots 612 by applying force through the hand-held carrying block 607, and the third spring sleeved on the pin 204 is extended and retracted, so as to complete the convenient adjustment of the pin 204, and there is no need to disassemble the adjustment screw, thereby improving the adjustment efficiency, reducing the risk of thread wear caused by frequent turning of the adjustment screw, and thus extending the service life of the mounting seat 203 and related components. When adapting circuit boards of different specifications or upgrading and transforming equipment, this convenient adjustment method can save a lot of time and make the entire transformer installation and commissioning process smoother and more efficient. The remaining conditions are consistent with the first embodiment, so this embodiment will not be repeated.

[0032] The basic principles and main features of the present invention and the 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 frames (201), and both ends of the connecting sleeve (11) are inserted into the frames (201). Two groups of the frames (201) are symmetrically distributed, and the primary winding (31) is sleeved on one group of the frames (201), and the secondary winding (32) is sleeved on the other group of the frames (201); both ends of the frames (201) are provided with isolation plates (202), and the primary winding (31) and the secondary winding (32) are respectively located between multiple groups of the isolation plates (202). A separation plate (202) is provided between the two groups of the frames (201). There is one or more groups of insulating plates, the insulating plates being 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) are arranged in a staggered manner with respect to adjacent pins (204).

2. The surge-proof transformer skeleton according to claim 1, characterized in that: The insulating plate comprises an insulating partition (41), rubber plates (42) are arranged on both sides of the insulating partition (41), positioning protrusions (43) are arranged on both sides of the insulating partition (41), positioning grooves (44) are opened on the rubber plates (42) corresponding to the positioning protrusions (43), the positioning protrusions (43) are inserted into the positioning grooves (44), and the rubber plates (42) are in contact with the surface of the insulating plate; a plurality of positioning sleeves (45) are arranged on one side of the isolation plates (202) corresponding to the two groups of the skeletons (201), movable positioning columns (46) are arranged in the positioning sleeves (45), a first spring is arranged in the positioning sleeves (45), one end of the first spring is connected to the positioning sleeves (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.

3. The surge-proof transformer skeleton according to claim 2, 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 inserted into the connection grooves (207) so as to be 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 connection sleeves (11) are provided with multiple groups of reinforcing ribs (209), and the multiple groups of reinforcing ribs (209) are arranged at equal intervals.

4. The surge-proof transformer skeleton according to claim 3, 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.

5. The surge-proof transformer skeleton according to claim 1, characterized in that: The locking assembly comprises a locking cover plate (51), a plurality of groups of limit plates (210) are arranged on one side of one group of the isolation plates (202) on the frame (201), the iron core (33) is clamped between the plurality of groups of the limit plates (210), the locking cover plate (51) is rotatably connected to one group of the limit plates (210) via a hinge structure, and a fixing block (211) is arranged on the other group of the limit plates (210), the locking cover plate (51) is 1) is provided with a fixed block (58), a fixed groove (212) is provided on the fixed block (211), the fixed block (58) is clamped in the fixed groove (212), a covering structure is formed between the locking cover plate (51) and the frame (201), a plurality of groups of protrusions (213) are provided on one side of the locking cover plate (51), the protrusions (213) are arranged in a semicircular shape, and the plurality of groups of protrusions (213) are in contact with the iron core (33).

6. The surge-proof transformer skeleton according to claim 5, 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 connected to 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 inserted into the fixing through holes (214); one end of the locking column (52) is inserted into the fixing hole (215); and a sliding plate (53) is provided at the other end; 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; the locking column (52) and the fixing block (211) are slidably connected.

7. The surge-proof transformer skeleton according to claim 6, characterized in that: The two groups of sliding plates (53) are staggered and contact 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), 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 respectively connected to the two groups of pressing plates (56).

8. The surge-proof transformer skeleton according to claim 1, characterized in that: The mounting seat (203) is provided with a plurality of adjustment slots (601), the adjustment slots (601) being arranged in a staggered manner with adjacent adjustment slots (601), the pins (204) being inserted into the adjustment slots (601) and being slidably connected to the mounting seat (203); the mounting seat (203) is provided with a plurality of limit slots (602), the limit slots (602) being located at the tops of the adjustment slots (601), the pins (204) being provided with adjustment blocks (603), the adjustment blocks (603) being clamped In the limiting groove (602); an adjusting plate (604) is arranged on the top of the adjusting block (603), an adjusting through hole (605) is opened on the adjusting plate (604), and an adjusting hole (606) is opened on the mounting seat (203) corresponding to the adjusting through hole (605), and an adjusting screw passes through the adjusting through hole (605) and is clamped in one group of the adjusting holes (606); a detachable carrying block (607) is arranged on the top of the pin (204), and a protective cover (608) is also provided on the pin (204).

9. The surge-proof transformer skeleton according to claim 1, characterized in that: The mounting seat (203) is provided with a plurality of adjustment slots (601), wherein the adjustment slots (601) are arranged in a staggered manner with adjacent adjustment slots (601); a detachable protective cover (609) is provided on the mounting seat (203), wherein 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), and one end of the pin (204) passes through the adjustment slot (601) and is sleeved 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), wherein the limit slots (602) are located in the adjustment slot (601) and are provided with a lifting block (607). ) top, an adjusting block (603) is arranged on the pin (204), and the adjusting block (603) is clamped in the limiting groove (602); positioning blocks (611) are arranged on both sides of the adjusting block (603), and positioning slots (612) are opened on the mounting seat (203) corresponding to the positioning blocks (611), and multiple groups of positioning 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 slots (612); multiple groups of third springs are arranged 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).

10. The surge-proof transformer skeleton according to claim 1, characterized in that: A mounting platform (216) is provided on the top of one of the groups of isolation plates (202) on the frame (201), a mounting cover (217) is provided above the mounting platform (216), a plurality of groups of mounting blocks (218) are provided on the mounting platform (216), the mounting cover (217) is clamped between the plurality of groups 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 (34) are respectively provided in the two groups of mounting cavities. 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); a plurality of heat dissipation plates (37) are provided on the heat conducting plates (36), and heat dissipation air ducts are formed between the heat dissipation plates (37) and adjacent heat dissipation plates (37).

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