A switching power supply transformer

Abstract

The utility model discloses a switching power supply transformer, including base, the skeleton of integrative forming with base, winding group that winds on the skeleton, install the iron core at the top of base and set up the needle pin at the bottom of base, the wire leading -out end of winding group corresponds with corresponding needle pin welding fixed, the bottom of base is equipped with the threaded rod symmetrically, the outside of threaded rod is connected with the screw bushing of screw thread, the outside of needle pin is equipped with the electrically conducting cylinder, the top of electrically conducting cylinder is equipped with the taper portion, the middle part of electrically conducting cylinder is seted up and is inserted to the plug -in hole of needle pin, the utility model discloses the electrically conducting cylinder, threaded rod and screw bushing make when switching power supply transformer has the problem and needs to dismantle, after screwing down screw bushing, can directly dismantle, need not with the help of tool heating and de -soldering gradually, and when reassembling after maintenance, insert needle pin into electrically conducting cylinder, and screw back screw bushing can complete reassembling, greatly simplify the dismounting step, effectively promote maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, specifically to a switching power supply transformer. Background Technology

[0002] The switching power supply transformer is the core energy conversion component of a switching power supply. Its main function is to transform the high-frequency alternating voltage in the switching power supply, while realizing electrical isolation between the input and output circuits, and ultimately providing a stable DC power supply for the terminal equipment. It is an indispensable key component in modern electronic equipment.

[0003] Existing switching power supply transformers are generally soldered to the power circuit board with pins. Once the switching power supply transformer is damaged, the disassembly process is extremely difficult. Not only is it necessary to use tools such as soldering irons or hot air guns to heat and desolder each pin, which is time-consuming and laborious, but improper temperature control or external force during desoldering may also cause the transformer pins to break, the circuit board pads to fall off, or even cause surrounding components to be damaged by heat, ultimately increasing maintenance costs and the risk of circuit failure. Utility Model Content

[0004] The purpose of this invention is to provide a switching power supply transformer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a switching power supply transformer, comprising a base, a frame integrally formed with the base, a winding wound on the frame, an iron core installed on the top of the base, and pins set at the bottom of the base. The lead-out ends of the windings are welded and fixed to the corresponding pins. The bottom of the base is symmetrically provided with threaded rods, and the outer side of the threaded rods is threaded with a threaded sleeve. The outer side of the pins is fitted with a conductive cylinder, the top of the conductive cylinder is provided with a tapered part, and the middle part of the conductive cylinder is provided with a plug hole for the pins to be inserted. The inner wall of the plug hole is provided with a plurality of protrusions distributed in an annular pattern along its length.

[0006] As a preferred embodiment of this utility model, the outer side of the threaded sleeve is provided with grooves evenly distributed circumferentially.

[0007] As a preferred embodiment of this utility model, the bottom of the conductive cylinder is provided with rounded corners.

[0008] In a preferred embodiment of this utility model, the conductive cylinder, the conical part, and the protrusion are all made of metal conductive material, and the threaded rod and the threaded sleeve are all made of plastic insulating material.

[0009] In a preferred embodiment of this utility model, the outer wall of the pin abuts against the protrusion, and the top of the tapered portion abuts against the bottom of the base.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the conductive cylinder, threaded rod and screw sleeve of this utility model enable the power supply transformer to be disassembled directly after the screw sleeve is unscrewed when a problem occurs, without the need to use tools to heat and desolder each component. Furthermore, when reinstalling after repair, the pins are inserted into the conductive cylinder and the screw sleeve is screwed back in to complete the reinstallation, which greatly simplifies the disassembly and assembly steps and effectively improves maintenance efficiency. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0012] Figure 2 This is a cross-sectional view of the present invention;

[0013] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0014] Figure 4 This is an exploded view of the present invention;

[0015] Figure 5 This is a schematic diagram of the bottom structure of this utility model;

[0016] Figure 6 This is a schematic diagram of the structure of the conductive cylinder of this utility model.

[0017] In the diagram: 1. Base; 2. Frame; 3. Winding; 4. Iron core; 5. Pin; 6. Conductive cylinder; 7. Threaded rod; 8. Screw sleeve; 9. Tapered part; 10. Protrusion; 11. Rounded corner; 12. Groove; 13. Plug hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1 to 6This utility model provides a technical solution: a switching power supply transformer, including a base 1, a frame 2 integrally formed with the base 1, a winding 3 wound on the frame 2, an iron core 4 installed on the top of the base 1, and pins 5 set at the bottom of the base 1. The lead-out ends of the winding 3 are welded and fixed to the corresponding pins 5. Threaded rods 7 are symmetrically provided at the bottom of the base 1. A threaded sleeve 8 is threadedly connected to the outer side of the threaded rod 7. After the threaded rod 7 passes through the hole on the power circuit board, the threaded sleeve 8 is screwed onto the outer side of the threaded rod 7. The base 1 and the threaded sleeve 8 clamp the power circuit board, thereby fixing the base 1 on the base 1 and ensuring that the base 1 is firmly installed. A conductive cylinder 6 is sleeved on the outer side of the pin 5. When installing the base 1, the conductive cylinder 6 connects with the power circuit. The conductive tube 6 is fixed by welding to ensure stable conductivity between the conductive tube 6 and the power circuit board. During disassembly, simply unscrew the screw sleeve 8 and pull up the base 1 to separate the pin 5 from the conductive tube 6, and the base 1 can be disassembled. The top of the conductive tube 6 is provided with a tapered part 9, which makes it easier for the conductive tube 6 to be fitted onto the outside of the pin 5. The middle part of the conductive tube 6 is provided with a plug hole 13 for the pin 5 to be inserted. The inner wall of the plug hole 13 is provided with a plurality of annularly distributed protrusions 10 along its length. When the pin 5 is inserted into the plug hole 13, the protrusions 10 will fit tightly against the pin 5 due to elasticity. This not only fixes the conductive tube 6 to the outside of the pin 5, but also prevents loosening of the contact due to vibration, ensuring stable conductivity between the conductive tube 6 and the pin 5.

[0020] The outer side of the screw sleeve 8 is provided with grooves 12 evenly distributed around the circumference. The grooves 12 are used to provide friction between the screw sleeve 8 and the hand, so as to prevent slippage when rotating and make it convenient for the user to rotate the screw sleeve 8.

[0021] The bottom of the conductive cylinder 6 is provided with a rounded corner 11, which makes it easier for the conductive cylinder 6 to be inserted into the hole of the power circuit board.

[0022] Among them, the conductive cylinder 6, the conical part 9 and the protrusion 10 are all made of metal conductive material to ensure stable current transmission, while the threaded rod 7 and the threaded sleeve 8 are made of plastic insulating material. The high insulation performance of plastic blocks unnecessary electrical connections of the base 1, thereby avoiding short circuit faults.

[0023] The outer wall of the pin 5 abuts against the protrusion 10, and the top of the conical part 9 abuts against the bottom of the base 1 to prevent external impurities from entering the conductive cylinder 6 and affecting conductivity.

[0024] Specifically, during installation, the conductive cylinder 6 is placed over the outside of the pin 5 and pushed until the top of the conical part 9 contacts the bottom of the base 1. The protrusion 10 presses against the pin 5 to prevent the conductive cylinder 6 from falling off the outside of the pin 5. Then, holding the base 1, the conductive cylinder 6 and the threaded rod 7 are inserted into the hole of the power circuit board until the bottom of the base 1 is in contact with the power circuit board. The screw sleeve 8 is then screwed onto the outside of the threaded rod 7. The screw sleeve 8 and the base 1 clamp the power circuit board, making the base 1 firmly fixed on the power circuit board. The conductive cylinder 6 is then soldered to the power circuit board to form a reliable conductive connection and avoid poor contact. This completes the entire installation process. If the switching power supply transformer has a problem and needs to be disassembled for repair, the base 1 can be directly pulled up for disassembly after unscrewing the screw sleeve 8. When reinstallation is required after repair, the pin 5 is inserted into the conductive cylinder 6, and the screw sleeve 8 is screwed onto the outside of the threaded rod 7 to quickly complete the reinstallation.

[0025] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A switching power supply transformer, comprising a base (1), a frame (2) integrally formed with the base (1), a winding (3) wound on the frame (2), an iron core (4) mounted on the top of the base (1), and pins (5) disposed at the bottom of the base (1), wherein the lead-out ends of the winding (3) are welded and fixed to the corresponding pins (5), characterized in that: The bottom of the base (1) is symmetrically provided with threaded rods (7), and the outer side of the threaded rods (7) is threaded with a threaded sleeve (8). The outer side of the pin (5) is provided with a conductive cylinder (6), the top of the conductive cylinder (6) is provided with a tapered part (9), and the middle part of the conductive cylinder (6) is provided with a plug hole (13) for the pin (5) to be inserted. The inner wall of the plug hole (13) is provided with a plurality of annularly distributed protrusions (10) along its length direction.

2. A switching power supply transformer according to claim 1, characterized in that: The outer side of the threaded sleeve (8) is uniformly provided with grooves (12) along the circumferential direction.

3. A switching power supply transformer according to claim 1, characterized in that: The bottom of the conductive cylinder (6) is provided with rounded corners (11).

4. A switching power supply transformer according to claim 1, characterized in that: The conductive cylinder (6), the tapered part (9) and the protrusion (10) are all made of metal conductive material, and the threaded rod (7) and the threaded sleeve (8) are both made of plastic insulating material.

5. A switching power supply transformer according to claim 1, characterized in that: The outer wall of the pin (5) abuts against the protrusion (10), and the top of the tapered part (9) abuts against the bottom of the base (1).

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