A kind of impregnation processing device for micro transformer coil

Abstract

This invention discloses an impregnation device for miniature transformer coils, relating to the technical field of transformer manufacturing equipment. The device includes a frame, a cover plate rotatably connected to the frame, a placement rack slidably connected to the rack with a perforated plate, and pairs of longitudinally distributed connecting blocks slidably connected to the frame. A pair of electric push rods are fixed to the frame, and a pair of electric slide rails are fixed to the placement rack. A moving plate is fixed between the sliders of the paired electric slide rails, and the moving plate engages with longitudinally distributed levers. This invention, through the connecting blocks and levers, not only causes vibration in the placement rack and miniature transformer coils, increasing the horizontal flow of the varnish and accelerating its penetration into the fine gaps of the coils, but also removes air bubbles from enclosed spaces. Furthermore, it helps to organize the coils, preventing adjacent miniature transformer coils from obstructing each other and causing incomplete impregnation.

Description

Technical Field

[0001] This invention relates to the field of transformer manufacturing equipment technology, and in particular to an impregnation device for miniature transformer coils. Background Technology

[0002] The coil of a miniature transformer is the core component of a miniature transformer, and its design and manufacturing technology directly affect the transformer's performance and efficiency. The conductor material of the miniature transformer coil is usually round copper wire to balance conductivity and flexibility. In high-frequency applications, silver-plated copper wire or flat conductors are used to reduce losses caused by the skin effect. In order to improve the mechanical strength and insulation performance of the miniature transformer coil, as well as its heat dissipation and thermal conductivity, workers usually impregnate the miniature transformer coil with enamel.

[0003] Existing impregnation equipment typically impregnates multiple miniature transformer coils on a rack simultaneously. To prevent excessive obstruction of the coils by other objects, the rack is usually not equipped with additional limiting structures. However, without these limiting structures, some miniature transformer coils may shift slightly and come into contact with neighboring coils when workers pick up and place the rack. This causes the coils to obstruct each other, resulting in incomplete impregnation. Furthermore, due to the dense inter-turn gaps, insulation layer pores, and core gaps inside the miniature transformer coils, these micropores and air gaps can easily trap air and form localized cavitation, leading to poor impregnation results.

[0004] Based on the above, the present invention proposes an impregnation treatment device for micro transformer coils with good impregnation effect. Summary of the Invention

[0005] To overcome the shortcomings of existing impregnation devices, which may cause adjacent micro-transformer coils to block each other when performing simultaneous impregnation of multiple micro-transformer coils, resulting in incomplete impregnation, and the fact that the micro-transformer coils have dense micropores and gaps that easily trap air, leading to poor impregnation effect, this invention provides an impregnation device for micro-transformer coils with good impregnation effect.

[0006] An impregnation treatment device for miniature transformer coils includes a frame, a cover plate, a control module, a placement rack, a perforated plate, connecting blocks, a movable plate, electric slide rails, levers, electric push rods, liquid pumps, and guide pipes. The frame is rotatably connected to the cover plate. The control module is fixedly connected to the frame. The placement rack is placed on the frame. The perforated plate is slidably connected to the placement rack. Pairs of longitudinally distributed connecting blocks are slidably connected to the frame, and the connecting blocks are in contact with the placement rack. Pairs of electric push rods are fixedly connected to the frame. The telescopic ends of the electric push rods are fixedly connected to the longitudinally distributed connecting blocks. Pairs of liquid pumps are fixedly connected to the frame. The inlet end of the liquid pump is connected to the chamber of the frame through a pipe. Pairs of guide pipes are fixedly connected to the frame. One end of the guide pipe is fixedly connected to and communicates with the outlet end of the liquid pump. The other end of the guide pipe is fixedly connected to and communicates with the longitudinally distributed connecting blocks. Pairs of electric slide rails are fixedly connected to the placement rack. A movable plate is fixedly connected between the sliders of the pair of electric slide rails. The movable plate is engaged with longitudinally distributed levers.

[0007] Optionally, the placement rack has pairs of longitudinally distributed flow channels.

[0008] Optionally, a liquid passage groove is provided inside the connecting block.

[0009] Optionally, it also includes a disturbance mechanism, which is disposed on the frame. The disturbance mechanism includes a limit block, a pressure frame, a spring, a limit bracket, a pressure plate, a cylinder, and a first compression spring. Pairs of limit blocks are slidably connected to the frame. A spring is fixed between the limit block and the frame. The limit block is in contact with the placement frame. Pairs of pressure brackets are slidably connected to the frame. The pressure brackets are in pressing contact with the limit blocks. A cylinder is fixedly connected to the frame. A pressure plate is fixedly connected to the telescopic end of the cylinder. The telescopic end of the cylinder is slidably connected to the limit bracket. A first compression spring is fixed between the limit bracket and the telescopic end of the cylinder. The limit bracket is slidably connected to the pressure plate. The limit bracket is in pressing contact with the placement frame.

[0010] Optionally, it also includes a buffer mechanism, which is mounted on the frame. The buffer mechanism includes a guide frame and a buffer telescopic rod. The pair of buffer telescopic rods are fixed to the frame. The telescopic end of the buffer telescopic rod is fixed to the guide frame, and the guide frame is in contact with the placement frame.

[0011] Optionally, it also includes a fixing mechanism disposed on the cover plate. The fixing mechanism includes a mounting frame, a guide sleeve, a pressure rope, an elastic component, a locking block, a movable frame, and a second compression spring. The paired guide sleeves are fixedly connected to the cover plate. The mounting frame is slidably connected to the paired guide sleeves. An elastic component is fixedly connected to the mounting frame and the guide sleeve. The mounting frame is fixedly connected to a longitudinally distributed pressure rope. The guide sleeve is slidably connected to a movable frame. The movable frame is fixedly connected to the guide sleeve and the second compression spring. The movable frame is fixedly connected to a locking block. The locking block is slidably connected to the guide sleeve and the mounting frame.

[0012] Optionally, the guide sleeve is provided with a vent hole.

[0013] Optionally, it also includes a sealing mechanism, which is disposed on the frame. The sealing mechanism includes a compression block, a first airbag, a second airbag, and a connecting pipe. The pair of first airbags are fixed to the frame. The compression block is fixed to the first airbag. The cover plate is in compression fit with the compression block. The second airbag is fixed to the frame. The second airbag is in contact fit with the cover plate. The connecting pipe is fixed and connected to the first airbag.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The present invention, through components such as connecting blocks and levers, can not only make the placement rack and the miniature transformer coil vibrate and increase the flow of paint in the horizontal direction, thereby accelerating the penetration of paint into the fine gaps of the coil and expelling air bubbles in the enclosed space, but also sort out the position of the miniature transformer coil, thereby avoiding mutual obstruction of adjacent miniature transformer coils and resulting in insufficient paint impregnation, thus improving the paint impregnation effect of this paint impregnation treatment device.

[0015] 2. The present invention, through components such as limiting blocks and pressure plates, can not only increase the vertical flow of paint, thereby reducing gas residue and improving the uniformity of paint penetration, but also fix the placement rack to prevent it from moving under the impact of paint and the pushing of the limiting rack, thus improving the paint impregnation effect of this paint impregnation treatment device.

[0016] 3. The present invention, through the guide frame and the buffer telescopic rod, can not only guide and limit the placement frame, but also provide a buffer for the falling of the placement frame, thereby improving the stability of the placement frame when it is lowered, so as to avoid the miniature transformer coils from shifting and blocking each other during the lowering process, thus improving the practicality and impregnation effect of this varnishing treatment device.

[0017] 4. The present invention, through components such as the pressure rope and the moving frame, can not only fix the miniature transformer coil on the perforated plate to prevent the miniature transformer coil from shifting and blocking each other due to vibration and paint flow, but also release the fixation of the coil during pressure impregnation to prevent the pressure rope from blocking the surface of the miniature transformer coil, thereby improving the impregnation effect of this paint impregnation treatment device.

[0018] 5. The present invention, through components such as the extrusion block and the first airbag, enables the second airbag to expand after the cover plate is closed, and the expanded second airbag fills the gap between the cover plate and the frame, thereby improving the sealing performance of the paint impregnation device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the frame, cover plate, and control module of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the cover plate, control module, and placement rack of the present invention.

[0022] Figure 4 This is a three-dimensional structural diagram of the placement rack and perforated plate of the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of the connecting block, liquid pump, and guide pipe of the present invention.

[0024] Figure 6 This is a three-dimensional structural diagram of the connecting block and the guide tube of the present invention.

[0025] Figure 7 This is a three-dimensional structural diagram of the components of the present invention, including the perforated plate, electric slide rail, and lever.

[0026] Figure 8 This is a three-dimensional structural diagram of the movable plate, electric slide rail, and lever of the present invention.

[0027] Figure 9 This is a three-dimensional structural diagram of the limiting frame, pressure frame, and spring sheet components of the present invention.

[0028] Figure 10 This is a three-dimensional structural diagram of the limiting block, pressure frame, and spring sheet components of the present invention.

[0029] Figure 11 This is a three-dimensional structural diagram of the components of the present invention, including the pressure plate, cylinder, and first compression spring.

[0030] Figure 12 This is a schematic diagram of the exploded three-dimensional structure of the limiting frame, cylinder, and first compression spring of the present invention.

[0031] Figure 13 This is a three-dimensional structural diagram of the guide frame, buffer telescopic rod, and frame of the present invention.

[0032] Figure 14 This is a three-dimensional structural diagram of the placement frame, guide frame, and buffer telescopic rod of the present invention.

[0033] Figure 15 This is a three-dimensional structural diagram of the mounting frame, guide sleeve, and pressure rope components of the present invention.

[0034] Figure 16 This is a three-dimensional structural diagram of the card block, the movable frame, and the second compression spring of the present invention.

[0035] Figure 17 This is a three-dimensional structural diagram of the extrusion block, the first airbag, and the second airbag of the present invention.

[0036] Figure 18This is a three-dimensional structural diagram of the first airbag, the second airbag, and the connecting tube of the present invention.

[0037] The markings in the attached diagram are as follows: 1: Frame, 11: Cover plate, 12: Control module, 13: Placement frame, 1301: Orifice plate, 14: Connecting block, 1401: Moving plate, 1402: Electric slide rail, 1403: Lever, 15: Electric push rod, 16: Liquid pump, 17: Guide pipe, 2: Limiting block, 21: Pressure frame, 22: Spring, 23: Limiting frame, 24: Pressure plate, 25: Cylinder, 26: First compression spring, 3: Guide frame, 31: Buffer telescopic rod, 4: Mounting frame, 41: Guide sleeve, 42: Pressure rope, 43: Elastic component, 44: Locking block, 45: Moving frame, 46: Second compression spring, 5: Squeezing block, 51: First airbag, 52: Second airbag, 53: Connecting pipe. Detailed Implementation

[0038] The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0039] Example 1

[0040] An impregnation apparatus for miniature transformer coils, such as Figures 1-8 As shown, the system includes a frame 1, a cover plate 11, a control module 12, a placement rack 13, a perforated plate 1301, a connecting block 14, a moving plate 1401, an electric slide rail 1402, a lever 1403, an electric push rod 15, a liquid pump 16, and a guide pipe 17. The cover plate 11 is rotatably connected to the rear top of the frame 1. The control module 12 is fixedly connected to the right rear side of the frame 1. The placement rack 13 is placed on the upper part of the frame 1, and the perforated plate 1301 is slidably connected to the lower part of the placement rack 13. Three connecting blocks 14, arranged longitudinally in the front and rear directions, are slidably connected to the front and rear parts of both sides of the frame 1. The connecting blocks 14 contact and engage with the placement rack 13. A pair of electric push rods are fixedly connected to the frame 1. Push rod 15, the telescopic end of electric push rod 15 is fixedly connected to longitudinally distributed connecting block 14. Liquid pump 16 is fixedly connected to both the left and right sides inside the frame 1. The liquid inlet end of liquid pump 16 is connected to the chamber of frame 1 through a pipe. Guide pipe 17 is fixedly connected to both the left and right sides inside the frame 1. One end of guide pipe 17 is fixedly connected to and connected to the liquid outlet end of adjacent liquid pump 16. The other end of guide pipe 17 is fixedly connected to and connected to longitudinally distributed connecting block 14. Placement frame 13 is fixedly connected to a pair of electric slide rails 1402. A moving plate 1401 is fixedly connected between the sliders of the pair of electric slide rails 1402. A lever 1403 longitudinally distributed in front and behind is snapped into the right side of the moving plate 1401.

[0041] like Figure 4 and Figure 7 As shown, the placement rack 13 has longitudinally distributed flow grooves on both the left and right sides.

[0042] like Figure 6As shown, the connecting block 14 has a liquid passage groove inside.

[0043] When workers need to impregnate the miniature transformer coils, they can first neatly arrange multiple coils on the placement rack 13 and the perforated plate 1301, and then place the placement rack 13 inside the frame 1. Next, the cover plate 11 is closed, and a vacuum is evacuated inside the frame 1. After maintaining this vacuum for a period of time and venting most of the gas from the frame 1, varnish can be injected into the frame 1 until it covers the miniature transformer coils. At this point, the liquid pump 16 and the electric push rod 15 can be activated. The electric push rod 15 will cause the connecting blocks 14 on both sides to move closer to the placement rack 13 and tap the placement rack 13. This causes the placement rack 13 and the miniature transformer coil to vibrate, facilitating the removal of air bubbles from the enclosed space within the miniature transformer coil. Meanwhile, the liquid pump 16 draws some paint from the frame 1 through a pipe and injects it into the liquid channel inside the connecting block 14 via the guide pipe 17. When the connecting block 14 strikes the placement rack 13, the liquid channel within the connecting block 14 aligns and connects with the flow channel on the placement rack 13. At this point, the paint, under the action of the liquid pump 16, flows along the liquid channel in the connecting block 14 and the flow channel on the placement rack 13 into the placement rack 13, thereby increasing the horizontal flow of the paint. This accelerates the penetration of the varnish into the tiny gaps of the coil. Next, dry compressed air or inert gas can be injected into the frame 1 to increase the internal air pressure, thus forcing the varnish to penetrate further into the coil through high pressure. During this process, the worker can activate the electric slide rail 1402. If the moving plate 1401 is located to the left of the placement rack 13, the electric slide rail 1402 will drive the moving plate 1401 and the lever 1403 to the right. The position and number of levers 1403 on the moving plate 1401 can be set according to the size and position of the miniature transformer coil to ensure that the levers 1401... 3. Moving to the right allows the coil to pass through the gap between the two coils, thus sorting out the position of the miniature transformer coils. This prevents adjacent miniature transformer coils from contacting and blocking each other, which would result in insufficient varnish impregnation. After maintaining a high-pressure state for a period of time and ensuring that the varnish fully fills the gaps in the coils, the liquid pump 16 can be turned off and the pressure gradually released to drain the excess varnish from the frame 1. Then, the connecting block 14 is moved in the opposite direction and reset by the electric push rod 15. Finally, the placement rack 13, the perforated plate 1301, and the miniature transformer coils are removed from the frame 1 and the miniature transformer coils are cured and dried.

[0044] Example 2

[0045] Based on Example 1, such as Figures 9-12As shown, it also includes a disturbance mechanism, which is set on the frame 1. The disturbance mechanism includes a limit block 2, a pressure frame 21, a spring 22, a limit frame 23, a pressure plate 24, a cylinder 25, and a first compression spring 26. The four limit blocks 2 are slidably connected to the left and right sides of the front and rear sides of the frame 1, respectively. A spring 22 is fixed between the limit block 2 and the frame 1. The limit block 2 is in contact with the placement frame 13. The front and rear sides of the frame 1 are slidably connected to the pressure frames 21, which are symmetrically distributed on the left and right sides. The pressure frames 21 are pressed against the adjacent limit blocks 2. A cylinder 25 is fixed inside the frame 1. A pressure plate 24 is fixed to the top of the telescopic end of the cylinder 25. The telescopic end of the cylinder 25 is slidably connected to the limit frame 23. A first compression spring 26 is fixed between the limit frame 23 and the telescopic end of the cylinder 25. The limit frame 23 is slidably connected to the pressure plate 24. The limit frame 23 is pressed against the placement frame 13.

[0046] When the worker rotates the cover plate 11 downwards and closes it, the cover plate 11 contacts and presses the pressure frame 21, causing the pressure frame 21 to move downwards. The downward movement of the pressure frame 21 contacts and presses the limiting block 2, causing the limiting block 2 to move towards the top of the placement frame 13 and limit the placement frame 13. The spring 22 then deforms. When the worker injects paint into the frame 1 and the paint covers the micro transformer coil, the cylinder 25 can be activated. The cylinder 25 will first drive the limiting frame 23, the pressure plate 24, and the first compression spring 26 to move upwards. When the limiting frame 23 moves upwards to contact the placement frame 13, the limiting frame 23 will be blocked by the placement frame 13 and will no longer move upwards, while the pressure plate 24 will continue to move upwards under the action of the cylinder 25. The movement causes the paint to surge upwards, and the first compression spring 26 is compressed. This not only increases the vertical flow of the paint, thereby reducing gas residue and improving the uniformity of paint penetration, but also fixes the placement rack 13 to prevent it from moving under the impact of the paint and the pushing of the limiting frame 23. After the paint is soaked, the cylinder 25 can drive the limiting frame 23, the pressure plate 24 and the first compression spring 26 to move downwards and reset. During this process, the limiting frame 23 will move upwards relative to the pressure plate 24 and reset under the action of the first compression spring 26. When the worker opens the cover plate 11, the limiting block 2 will move in the opposite direction and reset under the action of the spring piece 22, and squeeze the pressure frame 21 to move upwards and reset, thereby releasing the limitation on the placement rack 13.

[0047] like Figure 13 and Figure 14 As shown, it also includes a buffer mechanism, which is set on the frame 1. The buffer mechanism includes a guide frame 3 and a buffer telescopic rod 31. The four buffer telescopic rods 31 are respectively fixed to the left and right sides of the front and rear sides of the frame 1. The top of the telescopic end of the buffer telescopic rod 31 is fixed to the guide frame 3, and the guide frame 3 is in contact with the placement frame 13.

[0048] When workers need to place components such as the placement rack 13 into the frame 1, they can first place the placement rack 13 between the four guide frames 3. The four guide frames 3 can guide and limit the placement rack 13. After the workers release their hands, the placement rack 13 and other components will move the guide frames 3 downward under their own weight until the bottom of the placement rack 13 contacts the frame 1. The buffer telescopic rod 31 will then be compressed. The buffer telescopic rod 31 can provide a buffer for the falling of the placement rack 13, thereby improving the stability of the placement rack 13 when it is lowered, so as to avoid the micro transformer coils from shifting and blocking each other during the lowering process. When the workers take out the placement rack 13 and other components, the guide frames 3 will move upward and reset under the action of the buffer telescopic rod 31.

[0049] like Figure 15 and Figure 16 As shown, it also includes a fixing mechanism, which is set on the cover plate 11. The fixing mechanism includes a mounting frame 4, a guide sleeve 41, a pressure rope 42, an elastic component 43, a locking block 44, a movable frame 45, and a second compression spring 46. The two guide sleeves 41 are respectively fixed to the left and right sides of the bottom of the cover plate 11. The mounting frame 4 is slidably connected between the two guide sleeves 41. The elastic component 43 is fixed between the mounting frame 4 and the guide sleeve 41. The pressure rope 42 is fixed in the middle of the mounting frame 4. The movable frame 45 is slidably connected to the side of the two guide sleeves 41 that is close to each other. The second compression spring 46 is fixed between the movable frame 45 and the guide sleeve 41. The locking block 44 is fixed to the side of the two movable frames 45 that is far from each other. The locking block 44 is slidably connected to the guide sleeve 41 and the mounting frame 4.

[0050] like Figure 16 As shown, the top of the guide sleeve 41 has a vent hole.

[0051] When the worker rotates the cover plate 11 downwards and closes it, components such as the mounting bracket 4 and the pressure rope 42 also rotate downwards with the cover plate 11 and come into contact with the miniature transformer coil on the top of the perforated plate 1301. At this time, the pressure rope 42 can press down and fix the miniature transformer coil to prevent it from shifting and blocking each other due to vibration and paint flow. At this time, the mounting bracket 4 will block the moving plate 1401 and the lever 1403. As the air pressure inside the frame 1 rises, the gas will enter the guide sleeve 41 through the vent and squeeze the moving bracket 45, thereby causing the moving bracket 45 and the locking block 44 to move away from the mounting bracket 4 until the locking block 44 separates from the mounting bracket 4. The second compression spring 46 is then compressed, and the mounting bracket 4 is no longer restricted by the locking block 44. The pressure cable 42 moves upward under the action of the elastic component 43, and then moves upward and separates from the miniature transformer coil. This allows the coil to be released during pressurized impregnation, thus preventing the pressure cable 42 from obstructing the surface of the miniature transformer coil. At this time, the mounting bracket 4 will no longer obstruct the moving plate 1401 and the lever 1403. When the air pressure returns to normal, the locking block 44 and the moving bracket 45 will move in the opposite direction under the action of the second compression spring 46 and press against the surface of the mounting bracket 4. If you want to use it again, you need to manually move the mounting bracket 4 downward to reset it. The elastic component 43 will then be stretched. At this time, the locking block 44 will move in the opposite direction to reset under the action of the second compression spring 46 and re-insert into the groove on the mounting bracket 4, thereby limiting the mounting bracket 4.

[0052] like Figure 17 and Figure 18 As shown, it also includes a sealing mechanism, which is set on the frame 1. The sealing mechanism includes a compression block 5, a first airbag 51, a second airbag 52, and a connecting pipe 53. The two first airbags 51 are respectively fixed to the left and right sides of the upper part of the frame 1. The compression block 5 is fixed to the top of the first airbag 51. The cover plate 11 is pressed and fitted with the compression block 5. The second airbag 52 is fixed to the upper part of the frame 1. The second airbag 52 is in contact with the cover plate 11. The connecting pipe 53 is fixed and connected between the second airbag 52 and the first airbag 51.

[0053] When the worker rotates the cover plate 11 downwards and closes it, the cover plate 11 contacts and squeezes the squeezing block 5, causing the squeezing block 5 to move downwards. The downward movement of the squeezing block 5 then squeezes the first airbag 51, causing the gas in the first airbag 51 to enter the second airbag 52 through the connecting pipe 53. The first airbag 51 then deforms and shrinks, while the second airbag 52 then expands. The expanded second airbag 52 can fill the gap between the cover plate 11 and the frame 1 to ensure the sealing of the device. When the worker rotates the cover plate 11 upwards and opens it, the second airbag 52 will return to its original shape under its own elasticity and send the excess gas back to the first airbag 51 through the connecting pipe 53. The first airbag 51 then returns to its original shape and drives the squeezing block 5 to move upwards and reset.

[0054] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An impregnation treatment apparatus for micro transformer coils, comprising a frame (1), a cover plate (11) rotatably connected to the frame (1), a control module (12) fixedly connected to the frame (1), a placement rack (13) placed on the frame (1), and a perforated plate (1301) slidably connected to the placement rack (13), characterized in that, It also includes connecting blocks (14), and the frame (1) is slidably connected with a pair of longitudinally distributed connecting blocks (14). The connecting blocks (14) are in contact with the placement frame (13). The frame (1) is fixedly connected with a pair of electric push rods (15). The telescopic ends of the electric push rods (15) are fixedly connected to the longitudinally distributed connecting blocks (14). The frame (1) is fixedly connected with a pair of liquid pumps (16). The liquid inlet end of the liquid pumps (16) is connected to the chamber of the frame (1) through a pipe. (1) A pair of guide tubes (17) are fixedly connected. One end of the guide tube (17) is fixedly connected to and connected to the liquid outlet of the liquid pump (16). The other end of the guide tube (17) is fixedly connected to and connected to the longitudinally distributed connecting block (14). A pair of electric slide rails (1402) are fixedly connected to the placement rack (13). A moving plate (1401) is fixedly connected between the sliders of the pair of electric slide rails (1402). A longitudinally distributed lever (1403) is snapped into the moving plate (1401). It also includes a fixing mechanism, which is set on the cover plate (11). The fixing mechanism includes a mounting frame (4), a guide sleeve (41), a pressure rope (42), an elastic component (43), a locking block (44), a moving frame (45), and a second compression spring (46). The pair of guide sleeves (41) are fixed to the cover plate (11). The pair of guide sleeves (41) are slidably connected to the mounting frame (4). The mounting frame (4) and the guide sleeve (41) are fixedly connected to the elastic component (43). The mounting frame (4) is fixedly connected to the longitudinally distributed pressure rope (42). The guide sleeve (41) is slidably connected to the moving frame (45). The moving frame (45) and the guide sleeve (41) are fixedly connected to the second compression spring (46). The moving frame (45) is fixedly connected to the locking block (44). The locking block (44) is slidably connected to the guide sleeve (41) and the locking block (44) is slidably connected to the mounting frame (4).

2. The impregnation apparatus for miniature transformer coils according to claim 1, characterized in that, The placement rack (13) has pairs of longitudinally distributed flow channels.

3. The impregnation apparatus for miniature transformer coils according to claim 2, characterized in that, The connecting block (14) has a liquid passage groove inside.

4. The impregnation apparatus for miniature transformer coils according to claim 3, characterized in that, It also includes a disturbance mechanism, which is set on the frame (1). The disturbance mechanism includes a limit block (2), a pressure frame (21), a spring (22), a limit frame (23), a pressure plate (24), a cylinder (25), and a first compression spring (26). The pairs of limit blocks (2) are slidably connected to the frame (1). A spring (22) is fixed between the limit block (2) and the frame (1). The limit block (2) is in contact with the placement frame (13). The frame (1) is slidably connected to the first compression spring (26). The pressure frame (21) is pressed together with the limiting block (2). The frame (1) is fixedly connected to the cylinder (25). The extension end of the cylinder (25) is fixedly connected to the pressure plate (24). The extension end of the cylinder (25) is slidably connected to the limiting frame (23). The first compression spring (26) is fixedly connected between the limiting frame (23) and the extension end of the cylinder (25). The limiting frame (23) is slidably connected to the pressure plate (24). The limiting frame (23) is pressed together with the placement frame (13).

5. The impregnation apparatus for miniature transformer coils according to claim 4, characterized in that, It also includes a buffer mechanism, which is set on the frame (1). The buffer mechanism includes a guide frame (3) and a buffer telescopic rod (31). The pair of buffer telescopic rods (31) are fixed to the frame (1). The telescopic end of the buffer telescopic rod (31) is fixed to the guide frame (3). The guide frame (3) is in contact with the placement frame (13).

6. The impregnation apparatus for miniature transformer coils according to claim 5, characterized in that, The guide sleeve (41) has a vent hole.

7. The impregnation apparatus for miniature transformer coils according to claim 6, characterized in that, It also includes a sealing mechanism, which is set on the frame (1). The sealing mechanism includes a compression block (5), a first airbag (51), a second airbag (52) and a connecting pipe (53). The pair of first airbags (51) are fixed to the frame (1). The first airbag (51) is fixed to the compression block (5). The cover plate (11) is pressed and engaged with the compression block (5). The frame (1) is fixed to the second airbag (52). The second airbag (52) is in contact with the cover plate (11). The second airbag (52) is fixed and connected to the first airbag (51) by the connecting pipe (53).

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