High-reliability SMD (Surface Mounted Device) transformer and processing method thereof

Abstract

The invention provides a high-reliability SMD (Surface Mount Device) transformer and a processing method thereof, and relates to the technical field of SMD transformers. The high-reliability SMD transformer comprises a shell and a magnetic core, pins are installed at the positions, close to the front end, of the upper end face and the rear end, of the lower end face of the shell correspondingly, auxiliary fixing mechanisms are installed on one side of the front end of the outer wall of the shell and one side of the rear end of the outer wall of the shell correspondingly, and second splicing blocks are fixedly arranged at the upper end and the lower end of one side of the inner wall of the shell correspondingly; adjusting mechanisms are installed on the sides, away from the pins, of the upper end face and the lower end face of the shell, a coil is wound around the outer wall of the magnetic core, bottom plates are fixedly arranged at the two ends of the magnetic core, and side plates are fixedly arranged on the upper end faces and the lower end faces of the two bottom plates. By removing the clamping and fixing mechanism and the auxiliary fixing mechanism to fix the pins, the pins can be conveniently and independently replaced, the situation that the whole patch transformer assembly needs to be disassembled, maintained and replaced due to damage of the pins is avoided, the replacement mode is simple and convenient, and operation is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of SMD transformers, in particular to a high-reliability SMD transformer and a processing method thereof. Background Art

[0002] SMD: It is the abbreviation of Surface Mounted Devices, which means: surface mount device, which is a type of SMT components. A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. The transformer consists of an iron core (or magnetic core) and a coil. The coil has two or more windings, of which the winding connected to the power supply is called the primary coil, and the remaining windings are called secondary coils. It can transform AC voltage, current and impedance. The simplest iron core transformer consists of an iron core made of soft magnetic material and two coils with different numbers of turns on the iron core. The SMD patch transformer refers to a surface mount transformer, which is widely used in various electronic devices.

[0003] The prior art records: Patent (CN117174457A) SMD transformer includes an I-shaped magnetic core and a first coil to a fourth coil wound on a cylindrical winding portion of the I-shaped magnetic core, and the first flange and the second flange of the I-shaped magnetic core are respectively connected to the two ends of the cylindrical winding portion. The first pad to the fourth pad are sequentially arranged on the first flange along a first setting direction. The fifth pad to the eighth pad are sequentially arranged on the second flange along a second setting direction opposite to the first setting direction. The two ends of the first coil are respectively connected to the first pad and the seventh pad. The two ends of the second coil are respectively connected to the third pad and the fifth pad. The SMD transformer in this technology can maintain a certain electrical distance to pass the withstand voltage test; Patent (CN106504882A) A SMD network transformer and a manufacturing method thereof, the SMD network transformer includes a packaging substrate unit with electrodes on both the upper and lower surfaces and a signal adjustment module mounted on the packaging substrate unit, and also includes a packaging glue that is injection-molded on the packaging substrate unit and encapsulates the signal adjustment module inside it. The patch network transformer in this technology is easy to manufacture and has good quality, which can greatly improve the production efficiency and qualification rate of products; However, most existing SMD transformers use a simple coil-wound magnetic core, which is directly connected to the pins through the wound coils for lead-out use. As a result, in actual use, the structural stability is poor, the pin connections are easily damaged, it is difficult to ensure continuous and stable power supply, and it is more difficult to assemble, disassemble and repair during production. Summary of the invention

[0004] Technical Solution In view of the deficiencies of the prior art, the present invention solves the deficiencies through the following technical solutions: a high-reliability SMD patch transformer, comprising a shell and a magnetic core, wherein the upper end face of the shell is provided with pins at the front end and the lower end face is provided with pins at the rear end, the front end side of the outer wall of the shell and the rear end side of the outer wall are provided with auxiliary fixing mechanisms, the upper and lower ends of one side of the inner wall of the shell are provided with No. 2 splicing blocks fixedly, the upper and lower ends of the shell are provided with adjustment mechanisms at the sides of the upper and lower ends of the shell away from the pins, the outer wall of the magnetic core is provided with a coil wound around it, the two ends of the magnetic core are provided with a bottom plate fixedly, the upper and lower end faces of the two bottom plates are provided with side plates fixedly, two clamping and fixing mechanisms are provided on one side of the opposite side of the two side plates, the other side of the opposite side of the two side plates is provided with a No. 1 splicing block, and the two No. 1 splicing blocks are provided with a limiting mechanism for internal clamping; The adjustment mechanism comprises an insertion rod, a connection block is fixedly provided at the lower end of the insertion rod, a handle is fixedly provided at the lower end of the connection block, and a connection spring is movably sleeved on the outer side of the handle, and the connection block and the connection spring are both movably embedded in the housing; The limiting mechanism comprises a sleeve rod, one end of which is embedded in the second splicing block and the other end of which is embedded in the first splicing block, and a jacket is fixedly provided on the outer wall of one end of the sleeve rod located inside the first splicing block; The auxiliary fixing mechanism includes two rotating shafts, both of which are rotatably sleeved inside the housing and a rotating rod is fixedly sleeved outside the rotating shaft, a pinching rod is fixedly arranged at one end of the rotating rod and a fixing rod is fixedly arranged at the other end of the rotating rod, one end of the fixing rod is embedded in the pin, and a contraction spring is installed between the two pinching rods; The clamping and fixing mechanism includes an inner box, which is embedded in the side plate, a joint is installed on the upper end of the inner box, connecting rods are installed on both sides of the outer wall of the inner box, and an extrusion plate is fixedly installed on one end of the connecting rod, an extrusion spring is also sleeved on the outer wall of the connecting rod, and the extrusion spring is located between the extrusion plate and the inner wall of the inner box, screws are rotatably arranged at the lower ends of both sides of the outer wall of the inner box, and a toggle block is threadedly sleeved on the outer side of the screw.

[0005] Preferably, the coil arranged outside the magnetic core leads out four lead wires and the lead wires are located in groups of two at the upper and lower ends of the magnetic core, and the four lead wires are connected to four connectors respectively.

[0006] Preferably, one end of the two side plates is fixedly provided with a heat dissipation fin and the other end is fixedly provided with a base, one end of the heat dissipation fin is fixedly connected to the bottom plate and the other end passes through one side of the outer wall of the shell, and the two bottom plates are made of copper plates.

[0007] Preferably, a No. 1 spring is embedded in the two No. 2 splicing blocks, one end of the two No. 1 springs is fixedly connected to the No. 2 splicing block and the other end is fixedly provided with a No. 1 clamping block, and the upper and lower ends of the outer wall of one end of the sleeve rod located inside the No. 2 splicing block are respectively provided with a clamping groove and a slot, the No. 1 clamping block is embedded in the clamping groove, and the insertion rod is embedded in the slot.

[0008] Preferably, the two No. 2 splicing blocks are respectively spliced ​​with the two No. 1 splicing blocks, and No. 2 springs are embedded at the upper and lower ends of the two No. 1 splicing blocks, and a No. 2 clamping block is fixedly provided at one end of the No. 2 spring, and the upper and lower outer walls of the outer sleeve are provided with multiple slots, and the two No. 2 clamping blocks are respectively embedded in the slots at the upper and lower ends of the outer sleeve.

[0009] Preferably, the pin is clamped between two extrusion plates and one end of the pin is electrically connected to the connector, the magnetic core and the two bottom plates are both cylindrical and the two bottom plates are inserted into the side plates on both sides.

[0010] Preferably, a fixing block is fixedly provided at one end of the connecting rod, and a pulling block is fixedly provided at one end of the screw rod.

[0011] The processing method of the high reliability SMD patch transformer specifically includes the following steps: Step S1. After the enameled copper flat wire is wound around the magnetic core, the magnetic core and the bottom plate are inserted into the two side plates to obtain a transformer skeleton; Step S2, partially removing the outer paint film of the enameled copper flat wire by a chemical paint stripping method, and overlapping the lead wire based on the removed paint film; Step S3, folding the enameled copper flat wire, cutting off the excess wire ends, tinning, and then overlapping the lead wire with the joint and contacting the joint with the pin; Step S4, fix the pins, and fix the entire transformer into the housing based on the adjustment mechanism and the limit mechanism so that it can be spliced ​​and installed with the second splicing block inside; Step S5: After the housing is closed, it is fastened with bolts. Beneficial Effects

[0012] The present invention provides a high-reliability SMD patch transformer and a processing method thereof, which has the following beneficial effects: The invention provides a high-reliability SMD patch transformer and a processing method thereof. Pins are individually embedded in a shell, and a clamping and fixing mechanism and an auxiliary fixing mechanism cooperate to fix the pins. When two pins are damaged and need to be replaced, the clamping and fixing mechanism and the auxiliary fixing mechanism can be removed to fix the pins, so that the pins can be replaced individually, and it is avoided that the entire patch transformer assembly needs to be disassembled, repaired and replaced due to the damage of the pins. The replacement method is simple and convenient, and the operation is convenient. At the same time, since the clamping and fixing mechanism and the auxiliary fixing mechanism can be embedded in pins of different diameters, the upper ends of the pins of different diameters can be clamped and fixed, so that the patch transformer assembly is easy to assemble with pins of different specifications, and the applicability and flexibility of the use of the patch transformer assembly are improved. The entire patch transformer assembly is spliced ​​and fixed inside the shell, so that the installation, disassembly and subsequent maintenance and use of the patch transformer assembly can be quickly completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the shaft side structure of the present invention; Figure 2 It is a schematic diagram of the front cross-section structure of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the structure at A; Figure 4 For the present invention Figure 2 A schematic diagram of the structure at B; Figure 5 It is a structural schematic diagram of the fixing mechanism of the present invention; Figure 6 It is a partial top view structural schematic diagram of the auxiliary fixing mechanism of the present invention; Figure 7 It is a schematic structural diagram of the magnetic core of the present invention.

[0014] Among them, 1. pin; 2. shell; 3. adjustment mechanism; 301. connecting spring; 302. connecting block; 303. plug rod; 304. handle; 4. heat sink fin; 5. limit mechanism; 501. jacket; 502. card slot; 503. slot; 504. sleeve rod; 6. bottom plate; 7. base; 8. coil; 9. magnetic core; 10. No. 1 splicing block; 11. No. 1 spring; 12. No. 1 card block; 13. lead wire; 14. Extrusion plate; 15. Extrusion spring; 16. Connecting rod; 17. No. 2 spring; 18. No. 2 clamping block; 19. Joint; 20. Inner box; 21. Fixed block; 22. Pull block; 23. Toggle block; 24. Screw; 25. Auxiliary fixing mechanism; 2501. Fixed rod; 2502. Rotating rod; 2503. Pinch rod; 2504. Contraction spring; 2505. Rotating shaft; 26. Side panel; 27. No. 2 splicing block. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0016] like Figure 1-7 As shown, the embodiment of the present invention provides a high-reliability SMD patch transformer, including a shell 2 and a magnetic core 9, wherein the upper end surface of the shell 2 is provided with a pin 1 at the front end and the lower end surface at the rear end, the front end side of the outer wall of the shell 2 and the rear end side of the outer wall are provided with an auxiliary fixing mechanism 25, the upper and lower ends of one side of the inner wall of the shell 2 are fixedly provided with a No. 2 splicing block 27, and the upper and lower ends of the shell 2 are provided with an adjusting mechanism 3. The outer wall of the magnetic core 9 is wound with a coil 8, and both ends of the magnetic core 9 are fixedly provided with a bottom plate 6, and the upper and lower end surfaces of the two bottom plates 6 are fixedly provided with a side plate 26, and one side of the opposite side of the two side plates 26 is provided with two clamping fixing mechanisms, and the other side of the opposite side of the two side plates 26 is provided with a No. 1 splicing block 10, and the two No. 1 splicing blocks 10 are internally provided with a limiting mechanism 5; the coil 8 arranged on the outer side of the magnetic core 9 leads out four leads 13 and is located at the upper and lower ends of the magnetic core 9 in groups of two, and the four leads 13 are respectively connected to four joints 19; Specifically, the patch transformer assembly is combined by winding the magnetic core 9 and the coil 8, and a plurality of lead wires 13 are led out from the outside of the coil 8, and the plurality of lead wires 13 are connected to the independent connector 19 separately, and then connected to the pin 1, thereby ensuring the quick replacement effect of the pin 1 when it is damaged, and it is safer to use; Reference Figure 1-Figure 2 , one end of the two side plates 26 is fixedly provided with a heat dissipation fin 4 and the other end is fixedly provided with a base 7, one end of the heat dissipation fin 4 is fixedly connected to the bottom plate 6 and the other end passes through one side of the outer wall of the housing 2, and the two bottom plates 6 are made of copper plates; by connecting the heat dissipation fin 4 to the bottom plate 6 at the upper end of the magnetic core 9 and using the bottom plate 6 made of copper material for contact connection, the heat dissipation process can be quickly performed to reduce the accident of high temperature burning; Reference Figure 1-Figure 4 The adjustment mechanism 3 includes an insertion rod 303, a connection block 302 is fixedly provided at the lower end of the insertion rod 303, a handle 304 is fixedly provided at the lower end of the connection block 302, and a connection spring 301 is movably sleeved on the outer side of the handle 304, and the connection block 302 and the connection spring 301 are both movably embedded in the housing 2; Specifically, when in use, the handle 304 at the lower end is pulled to cause the inner connecting block 302 to be displaced, and the connecting block 302 is fixed to the insertion rod 303, thereby causing the insertion rod 303 to be displaced. When the insertion rod 303 is displaced, the insertion rod 303 will be detached from the sleeve rod 504 of the limiting mechanism 5, thereby releasing the restriction on the sleeve rod 504. At this time, the entire limiting mechanism 5 can be pulled out to complete the restriction release so as to complete the disassembly and assembly of the SMD transformer assembly.

[0017] Reference Figure 1-Figure 4 The limiting mechanism 5 includes a sleeve rod 504, one end of which is embedded in the No. 2 splicing block 27 and the other end is embedded in the No. 1 splicing block 10. The sleeve rod 504 is located in the No. 1 splicing block 10. The outer wall of one end of the sleeve rod 504 is fixed with a jacket 501; the two No. 2 splicing blocks 27 are both embedded with No. 1 springs 11, one end of the two No. 1 springs 11 is fixedly connected to the No. 2 splicing block 27 and the other end is fixed with a No. 1 clamping block 12, and the sleeve rod 504 is located at the upper and lower ends of the outer wall of one end of the No. 2 splicing block 27. A card slot 502 and a slot 503 are respectively provided at the outer wall, the No. 1 card block 12 is embedded in the card slot 502, and the plug rod 303 is embedded in the slot 503; the two No. 2 splicing blocks 27 are respectively spliced ​​with the two No. 1 splicing blocks 10, and the upper and lower ends of the two No. 1 splicing blocks 10 are embedded with No. 2 springs 17, and one end of the No. 2 spring 17 is fixedly provided with a No. 2 card block 18, and the upper and lower outer walls of the outer jacket 501 are provided with a plurality of notches, and the two No. 2 card blocks 18 are respectively embedded in the notches at the upper and lower ends of the outer jacket 501; Specifically, when the protrusion at one end of the No. 1 splicing block 10 and the groove at one end of the No. 2 splicing block 27 are completed, the No. 1 splicing block 10 and the No. 2 splicing block 27 are completed. The splicing assembly is completed, and the sleeve rod 504 is inserted into the No. 2 splicing block 27 to prompt the outer sleeve 501 to be located inside the No. 1 splicing block 10, that is, the No. 1 card block 12 inside the No. 2 splicing block 27 is embedded in the card groove 502, and the insertion rod 303 of the adjustment mechanism 3 at the lower end is inserted into the slot 503 to complete the fixing effect of the limiting mechanism 5, and at the same time, the No. 2 card block 18 in the No. 1 splicing block 10 is inserted into the notch of the outer sleeve 501 to complete the auxiliary fixing effect.

[0018] Reference Figure 1 and Figure 6 The auxiliary fixing mechanism 25 includes two rotating shafts 2505, both of which are rotatably sleeved inside the housing 2 and a rotating rod 2502 is fixedly sleeved outside the rotating shaft 2505, a pinching rod 2503 is fixedly provided at one end of the rotating rod 2502 and a fixing rod 2501 is fixedly provided at the other end of the rotating rod 2502, one end of the fixing rod 2501 is embedded in the pin 1, and a contraction spring 2504 is installed between the two pinching rods 2503; Specifically, when in use, the two pinching rods 2503 are pressed to drive the two rotating rods 2502 to move, and the two rotating rods 2502 rotate along the rotating shaft 2505 and drive the fixing rod 2501 at one end to expand outward, so that it is separated from the pin 1 to complete the release of the clamping and fixing effect of the pin 1.

[0019] Reference Figure 1-Figure 3 The clamping and fixing mechanism includes an inner box 20, which is embedded in the side plate 26, and a joint 19 is installed on the upper end of the inner box 20. Connecting rods 16 are installed on both sides of the outer wall of the inner box 20, and an extrusion plate 14 is fixedly installed at one end of the connecting rod 16. An extrusion spring 15 is also sleeved on the outer wall of the connecting rod 16, and the extrusion spring 15 is located between the extrusion plate 14 and the inner wall of the inner box 20. Screws 24 are rotatably arranged at the lower ends of the outer walls of the inner box 20, and a toggle block 23 is threadedly sleeved on the outer side of the screw 24; a fixing block 21 is fixedly arranged at one end of the connecting rod 16, and a pulling block 22 is fixedly arranged at one end of the screw 24; Specifically, when in use, first embed the pin 1 to be installed into the inner box 20 so that its end is connected to the joint 19, and then twist the pulling blocks 22 on both sides to drive the screw 24 to rotate. At this time, the toggle block 23 with the outer thread sleeve is laterally displaced, and when the toggle block 23 is displaced toward the pin 1, it no longer generates an extrusion force on the extrusion plate 14, so that the extrusion spring 15 on one side of the extrusion plate 14 pushes the extrusion plate 14 to move toward the pin 1, and finally fits with the outer wall of the pin 1 to complete the auxiliary clamping effect on the pin 1.

[0020] The present embodiment provides a method for processing a high-reliability SMD patch transformer, which specifically includes the following steps: Step S1. After the enameled copper flat wire is wound around the magnetic core 9, the magnetic core 9 and the bottom plate 6 are inserted into the two side plates 26 to obtain a transformer skeleton; Step S2, partially removing the outer paint film of the enameled copper flat wire by a chemical paint stripping method, and bridging the lead wire 13 based on the removed paint film; Step S3, folding the enameled copper flat wire, cutting off the excess wire ends, tinning, and then overlapping the lead wire 13 with the connector 19 and contacting the connector 19 with the pin 1; Step S4, fix the pin 1, and fix the entire transformer into the housing 2 based on the adjustment mechanism 3 and the limit mechanism 5 so that it can be spliced ​​and installed with the second splicing block 27 inside; Step S5: The housing 2 is closed and fastened with bolts.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high reliability SMD patch transformer, comprising a housing (2) and a magnetic core (9), characterized in that: Pins (1) are installed at the front end of the upper end surface and the rear end of the lower end surface of the shell (2); auxiliary fixing mechanisms (25) are installed at the front end side and the rear end side of the outer wall of the shell (2); No. 2 splicing blocks (27) are fixedly installed at the upper and lower ends of one side of the inner wall of the shell (2); an adjustment mechanism (3) is installed on the side of the upper end surface and the lower end surface of the shell (2) away from the pins (1); a coil (8) is wound around the outer wall of the magnetic core (9); a bottom plate (6) is fixedly installed at both ends of the magnetic core (9); side plates (26) are fixedly installed on the upper end surface and the lower end surface of the two bottom plates (6); two clamping fixing mechanisms are installed on one side of the opposite side of the two side plates (26); a No. 1 splicing block (10) is installed on the other side of the opposite side of the two side plates (26); and the two No. 1 splicing blocks (10) are internally clamped with a limiting mechanism (5); The adjustment mechanism (3) comprises an insertion rod (303), a connection block (302) is fixedly provided at the lower end of the insertion rod (303), a handle (304) is fixedly provided at the lower end of the connection block (302), and a connection spring (301) is movably sleeved on the outer side of the handle (304), and the connection block (302) and the connection spring (301) are both movably embedded in the interior of the housing (2); The limiting mechanism (5) comprises a sleeve rod (504), one end of the sleeve rod (504) is embedded in the second splicing block (27) and the other end is embedded in the first splicing block (10), and a sleeve (501) is fixedly provided on the outer wall of one end of the sleeve rod (504) located inside the first splicing block (10); The auxiliary fixing mechanism (25) comprises two rotating shafts (2505), the two rotating shafts (2505) are both rotatably sleeved inside the housing (2), and a rotating rod (2502) is fixedly sleeved outside the rotating shaft (2505), a pinching rod (2503) is fixedly provided at one end of the rotating rod (2502), and a fixing rod (2501) is fixedly provided at the other end of the rotating rod (2502), one end of the fixing rod (2501) is embedded in the pin (1), and a contraction spring (2504) is installed between the two pinching rods (2503); The clamping and fixing mechanism comprises an inner box (20), the inner box (20) being embedded in a side plate (26), a joint (19) being installed at the upper end of the inner box (20), connecting rods (16) being installed on both sides of the outer wall of the inner box (20), and an extrusion plate (14) being fixedly installed at one end of the connecting rod (16), an extrusion spring (15) being sleeved on the outer wall of the connecting rod (16), and the extrusion spring (15) being located between the extrusion plate (14) and the inner wall of the inner box (20), and screw rods (24) being rotatably installed at the lower ends of both sides of the outer wall of the inner box (20), and a toggle block (23) being sleeved on the outer side of the screw rods (24) through a thread.

2. The high reliability SMD patch transformer according to claim 1, characterized in that: The coil (8) arranged outside the magnetic core (9) leads out four lead wires (13) and is located in groups of two at the upper and lower ends of the magnetic core (9), respectively. The four lead wires (13) are connected to four connectors (19) respectively.

3. The high reliability SMD patch transformer according to claim 1, characterized in that: A heat dissipation fin (4) is fixedly provided at one end of the two side plates (26) and a base (7) is fixedly provided at the other end; one end of the heat dissipation fin (4) is fixedly connected to the bottom plate (6) and the other end passes through one side of the outer wall of the housing (2); the two bottom plates (6) are made of copper plates.

4. The high reliability SMD patch transformer according to claim 1, characterized in that: A No. 1 spring (11) is embedded in the two No. 2 splicing blocks (27), one end of the two No. 1 springs (11) is fixedly connected to the No. 2 splicing block (27) and the other end is fixedly provided with a No. 1 clamping block (12), the sleeve rod (504) is located in the No. 2 splicing block (27) and has a clamping groove (502) and a slot (503) at the upper and lower ends of the outer wall at one end thereof, respectively, the No. 1 clamping block (12) is embedded in the clamping groove (502), and the insertion rod (303) is embedded in the slot (503).

5. The high reliability SMD patch transformer according to claim 1, characterized in that: The two No. 2 splicing blocks (27) are spliced ​​with the two No. 1 splicing blocks (10) respectively, and No. 2 springs (17) are embedded at the upper and lower ends of the two No. 1 splicing blocks (10), and a No. 2 clamping block (18) is fixedly arranged at one end of the No. 2 spring (17), and the upper and lower outer walls of the outer sleeve (501) are provided with a plurality of notches, and the two No. 2 clamping blocks (18) are respectively embedded in the notches at the upper and lower ends of the outer sleeve (501).

6. The high reliability SMD patch transformer according to claim 1, characterized in that: The pin (1) is clamped between two extrusion plates (14) and one end of the pin (1) is electrically connected to a connector (19); the magnetic core (9) and the two bottom plates (6) are both cylindrical and the two bottom plates (6) are inserted into the side plates (26) on both sides.

7. The high reliability SMD patch transformer according to claim 1, characterized in that: A fixing block (21) is fixedly provided at one end of the connecting rod (16), and a pulling block (22) is fixedly provided at one end of the screw rod (24).

8. A processing method for a high reliability SMD patch transformer, characterized in that: The specific steps include: Step S1. After the enameled copper flat wire is wound around the magnetic core, the magnetic core and the bottom plate are inserted into the two side plates to obtain a transformer skeleton; Step S2, partially removing the outer paint film of the enameled copper flat wire by a chemical paint stripping method, and overlapping the lead wire based on the removed paint film; Step S3, folding the enameled copper flat wire, cutting off the excess wire ends, tinning, and then overlapping the lead wire with the joint and contacting the joint with the pin; Step S4, fix the pins, and fix the entire transformer into the housing based on the adjustment mechanism and the limit mechanism so that it can be spliced ​​and installed with the second splicing block inside; Step S5: After the housing is closed, it is fastened with bolts.

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