A transformer for an adapter

Abstract

This utility model relates to the field of transformer technology, specifically a transformer for adapters, including a frame and a magnetic core mounted on the frame. The frame includes an input side a and an output side b. The input side a and output side b are respectively provided with pin rows that can be wound through. Each pin row consists of several pins. The pin rows on the input side a serve as input pins, and the pin rows on the output side b serve as output pins. A spacing A is formed between the input pins and the output pins, ranging from 29mm to 31mm. This utility model adopts a secondary widening manufacturing process, increasing the pin spacing to between 29mm and 31mm based on the original spacing. Compared with traditional conventional products, this solution improves safety distances, effectively prevents high-voltage failures, saves production costs, and enhances the product's market competitiveness. It can be widely applied to power devices such as adapters, printers, and computers with a power consumption of around 60W.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, specifically a transformer for adapters. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction generated by coils and iron cores to change AC voltage. It is often used in circuit structures to perform voltage transformation. However, the spacing between the pins of existing transformers is too small, which may lead to high voltage failure during use and easily affect its voltage transformation effect.

[0003] To address the above shortcomings, we need to develop a transformer for adapters to meet the needs of a wide range of users. Utility Model Content

[0004] Regarding the aforementioned problem of excessively small spacing between pin rows in existing transformers, the technical solution adopted by this utility model is as follows:

[0005] A transformer for an adapter includes a frame and a magnetic core mounted on the frame. The frame includes an input side a and an output side b. The input side a and the output side b of the frame are respectively provided with pin rows that can be wound through. The pin rows consist of a plurality of pins. The pin rows located on the input side a serve as input pins, and the pin rows located on the output side b serve as output pins. A spacing A is formed between the input pins and the output pins. The spacing A ranges from 29 mm to 31 mm.

[0006] As described above, a transformer for an adapter has an input pin comprising 6 pins and an output pin comprising 4 pins. The pins are arranged sequentially at intervals along a straight line c and at intervals along a straight line d. The straight line c is parallel to the straight line d, and the row spacing A is formed between the straight line c and the straight line d. The row spacing A is 30mm.

[0007] In the transformer for an adapter described above, the pin pitch B between adjacent pins ranges from 3.5 mm to 4.1 mm.

[0008] In a transformer for an adapter as described above, the maximum length C of the magnetic core is less than or equal to 29.5 mm, and the maximum height D of the magnetic core is less than or equal to 22.5 mm.

[0009] As described above, in a transformer for an adapter, the maximum width E of the frame is less than or equal to 36 mm.

[0010] As described above, in one type of transformer for an adapter, the frame adopts a PQ type frame structure.

[0011] As described above, in a transformer for an adapter, the frame has four primary windings and two secondary windings near the location where the magnetic core is installed, forming a six-layer winding structure from the inside out. The surface of each winding structure is covered with an insulating layer, and the primary winding or the secondary winding passes through the pin.

[0012] As described above, in a transformer for an adapter, the primary winding is wound between the pins, and the secondary winding is wound between the pins.

[0013] As described above, in a transformer for an adapter, the pins are tin-plated and grounded to the magnetic core.

[0014] As described above, in a transformer for an adapter, the surface of each primary winding is covered with one to three insulating layers, and the surface of each secondary winding is covered with two insulating layers.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model adopts a secondary widening production process, which increases the spacing between pins to between 29mm and 31mm based on the original spacing. Compared with traditional conventional products, this solution improves the safety distance, effectively prevents high voltage failure, saves production costs in the production process, improves the market competitiveness of the product, and can be widely used in power equipment such as adapters, printers, and computers with a power of around 60W. Attached Figure Description

[0017] Figure 1 This is a front view of a transformer for an adapter according to the present invention.

[0018] Figure 2 This is a side view of a transformer for an adapter according to the present invention.

[0019] Figure 3 This is a top view of a transformer for an adapter according to the present invention.

[0020] Figure 4 This is a winding structure diagram of a transformer for an adapter according to the present invention.

[0021] Figure 5 This is a polarity diagram of a transformer for an adapter according to the present invention.

[0022] Figure 6 A reference diagram of the skeleton structure of the PQ series is provided. Detailed Implementation

[0023] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] Figures 1 to 5 The following describes a transformer for an adapter according to Embodiment 1, comprising a frame 100 and a magnetic core 200 mounted on the frame 100. The frame 100 includes an input side a and an output side b. The input side a and the output side b of the frame 100 are respectively provided with pin rows 110 that can be wound through. The pin rows 110 are composed of a plurality of pins 2; 3; NC; 5; 6; 7; 8; 10; 11; 13. The pin rows 110 located on the input side a serve as input pins, and the pin rows 110 located on the output side b serve as output pins. A spacing A is formed between the input pins and the output pins, and the value of the spacing A is between 29 mm and 31 mm.

[0025] Specifically, in this embodiment, the skeleton 100 preferably adopts a PQ series skeleton structure (see...). Figure 6 This PQ-type skeleton structure has a first substrate 101, a second substrate 102, and a core mounting channel 104. The hollow, through-hole core mounting channel 104 is disposed between the first substrate 101 and the second substrate 102. The first substrate 101 has several pin structures, which form two pin rows 110 located on the input side a and the output side b, respectively. The pin row 110 on the input side a uses pins 2; 3; NC; 5; 6; 7 as input pins, and the pin row 110 on the output side b uses pins 8; 10; 11; 13 as output pins. Based on this, the pin row 110 on the input side a and the pin row 110 on the output side b... The distance between the pins of the pin rows 110 forms the row spacing A, which ranges from 29mm to 31mm, with 30mm being the preferred value. In this embodiment, a secondary widening production process is used to increase the row spacing A between different pin rows 110 to between 29mm and 31mm. Compared with conventional products, this embodiment increases the safety distance, effectively preventing high voltage failure and making it widely applicable to power devices such as adapters, printers, and computers with a power consumption of around 60W. In addition, due to the increased safety distance, the use of sleeves between pins is eliminated, saving production costs and improving the product's market competitiveness.

[0026] Furthermore, based on Example 1, Figure 3 Another preferred embodiment 2 of the transformer is shown. The input pins include 6 pins: 2, 3, NC, 5, 6, and 7. The output pins include 4 pins: 8, 10, 11, and 13. Pins 2, 3, NC, 5, 6, and 7 are arranged sequentially along a straight line c, and pins 8, 10, 11, and 13 are arranged sequentially along a straight line d. The straight lines c and d are parallel, and a row spacing A is formed between the straight lines c and d. The row spacing A is 30 mm. The pin spacing B between adjacent pins 2, 3, NC, 5, 6, 7, 8, 10, 11, and 13 ranges from 3.5 mm to 4.1 mm, and is preferably 3.8 mm.

[0027] Specifically, in this embodiment, the pin structure improves the safety distance through secondary widening, making it less prone to failure during use, thus improving safety and service life. It also saves production costs and improves the economic benefits of the product.

[0028] Furthermore, based on Example 1, Figure 1 and Figure 2 Another preferred embodiment of the transformer is shown in 3. The maximum length C of the magnetic core 200 is less than or equal to 29.5 mm, the maximum height D of the magnetic core 200 is less than or equal to 22.5 mm, and the maximum width E of the frame 100 is less than or equal to 36 mm. Compared with the conventional transformer, this shape structure is more suitable for use in power equipment such as adapters, printers, and computers with a power of around 60W.

[0029] Furthermore, based on Example 1, Figure 3 and Figure 5 Another preferred embodiment of the transformer is shown in 4. The frame 100 is provided with four primary windings N1; N2; N3; N4 and two secondary windings N5; N6 near the mounting core 200, so that the frame 100 forms a six-layer winding structure from the inside out. The surface of each winding structure is covered with an insulating layer 300. The primary windings N1; N2; N3; N4 or the secondary windings N5; N6 are wound around pins.

[0030] Specifically, in this embodiment, the primary winding is used to receive voltage and current supplied by the power source, and the secondary winding is used to supply voltage and current to the load. The primary windings N1, N2, N3, and N4 and the secondary windings N5 and N6 are wound around the outside of the core mounting channel 104 of the frame 100, forming a six-layer winding structure N1, N2, N3, N4, N5, and N6 sequentially wound from the outer surface of the core mounting channel 104 towards the outside (see...). Figure 4 (The PIN in the diagram represents the bottom position near the pin of the first substrate 101, and the TOP in the diagram represents the top position near the pin of the second substrate 102). More specifically, the surface of each winding structure is wrapped with an insulating layer 300, which enhances the withstand voltage and improves the wire performance while meeting the normal voltage conversion function.

[0031] Furthermore, based on Example 1, Figure 4Another preferred embodiment of the transformer is shown in 5, wherein the surface of each primary winding N1; N2; N3; N4 is covered with 1 to 3 insulating layers 300, and the surface of each secondary winding N5; N6 is covered with 2 insulating layers 300. More specifically, the primary winding N1 is covered with 1 insulating layer 300, the primary winding N2 is covered with 2 insulating layers 300, the primary winding N3 is covered with 2 insulating layers 300, the primary winding N4 is covered with 3 insulating layers 300, and the secondary windings N5 and N6 are each covered with 2 insulating layers 300. The insulating layers 300 can be tape or adhesive paper, preferably layered tape.

[0032] Furthermore, based on Example 1, Figure 3 and Figure 5 Another preferred embodiment of the transformer is shown in 6, wherein the primary winding N1 is wound between pins 5 and 6, the primary winding N2 is wound between pins 3 and NC, the primary winding N3 is wound between pins 8 and 13, the primary winding N4 is wound between pins 2 and 3, the secondary winding N5 is wound between pins 10 and 11, and the secondary winding N6 is wound between pins 6 and 7, wherein pin 3 is tin-plated and grounded to the magnetic core 200.

[0033] Specifically, in this embodiment, the first substrate 101 of the frame 100 has slots 103 for wire guide between adjacent pins. This winding structure can achieve a better transformer effect. Compared with traditional conventional transformers, this winding structure is more suitable for use in power devices such as adapters, printers, and computers with a power consumption of around 60W. More specifically, NC is a pin that has no electrical connection inside the transformer. In this embodiment, pin 4 is the NC pin. The winding sequence of the winding structure is as follows:

[0034] The primary winding N1 starts from pin 5 in slot 103 between pins 4 and 5, passes through slot 103 between pins 5 and 6, and ends at pin 6. The number of close turns is 20TS, and an insulation layer of 300 is wound on the outside.

[0035] The primary winding N2 starts from pin 3 and ends at pin NC in slot 103 between pins 3 and 4, with a close winding number of 18TS and two outer insulating layers of 300.

[0036] The primary winding N3 starts from pin 8 in slot 103 between pins 8 and 9, passes through slot 103 between pins 12 and 13, and ends at pin 13. The number of close turns is 8TS, and two insulation layers 300 are wound on the outside.

[0037] The primary winding N4 starts from pin 2 in slot 103 between pins 2 and 3, passes through slot 103 between pins 3 and 4, and ends at pin 3. The number of close turns is 5TS, and three insulation layers 300 are wound on the outside.

[0038] The secondary winding N5 starts from pin 10 in slot 103 between pins 9 and 10, passes through slot 103 between pins 11 and 12, and ends at pin 11. The number of close turns is 54TS, and two insulation layers of 300 are wound on the outside.

[0039] The secondary winding N6 starts from pin 6 in slot 103 between pins 5 and 6, passes through slot 103 between pins 6 and 7, and ends at pin 7. The number of close turns is 16TS, and two insulation layers 300 are wound on the outside.

[0040] In this case, insulating tape is preferably used to isolate the winding structures between each layer.

[0041] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A transformer for an adapter, comprising a frame (100) and a magnetic core (200) mounted on said frame (100), characterized in that: The skeleton (100) includes an input side a and an output side b. The input side a and the output side b of the skeleton (100) are respectively provided with pin rows (110) that can be wound through. The pin rows (110) are composed of a number of pins (2; 3; NC; 5; 6; 7; 8; 10; 11; 13). The pin rows (110) located on the input side a serve as input pins, and the pin rows (110) located on the output side b serve as output pins. A row spacing A is formed between the input pins and the output pins. The value of the row spacing A is between 29mm and 31mm.

2. A transformer for an adapter according to claim 1, characterized in that: The input pins include 6 pins (2; 3; NC; 5; 6; 7), and the output pins include 4 pins (8; 10; 11; 13). The pins (2; 3; NC; 5; 6; 7) are arranged sequentially along a straight line c, and the pins (8; 10; 11; 13) are arranged sequentially along a straight line d. The straight line c is parallel to the straight line d, and the row spacing A is formed between the straight line c and the straight line d. The row spacing A is 30mm.

3. A transformer for an adapter according to claim 2, characterized in that: The value of the stitch distance B between adjacent stitches (2; 3; NC; 5; 6; 7; 8; 10; 11; 13) ranges from 3.5 mm to 4.1 mm.

4. A transformer for an adapter according to claim 1, characterized in that: The maximum length C of the magnetic core (200) is less than or equal to 29.5 mm, and the maximum height D of the magnetic core (200) is less than or equal to 22.5 mm.

5. A transformer for an adapter according to claim 1, characterized in that: The maximum width E of the skeleton (100) is less than or equal to 36 mm.

6. A transformer for an adapter according to claim 1, characterized in that: The skeleton (100) adopts a PQ type skeleton structure.

7. A transformer for an adapter according to any one of claims 1-6, characterized in that: The frame (100) has four primary windings (N1; N2; N3; N4) and two secondary windings (N5; N6) near the mounting position of the magnetic core (200), so that the frame (100) forms a six-layer winding structure from the inside out. The surface of each winding structure is covered with an insulating layer (300). The primary windings (N1; N2; N3; N4) or the secondary windings (N5; N6) are wound around the pins.

8. A transformer for an adapter according to claim 7, characterized in that: The primary winding (N1) winds between pins (5; 6), the primary winding (N2) winds between pins (3; NC), the primary winding (N3) winds between pins (8; 13), the primary winding (N4) winds between pins (2; 3), the secondary winding (N5) winds between pins (10; 11), and the secondary winding (N6) winds between pins (6; 7).

9. A transformer for an adapter according to claim 7, characterized in that: The pin (3) is tin-plated and grounded to the magnetic core (200).

10. A transformer for an adapter according to claim 7, characterized in that: Each of the primary windings (N1; N2; N3; N4) is covered with one to three insulating layers (300), and each of the secondary windings (N5; N6) is covered with two insulating layers (300).

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