A side pin type transformer

Abstract

The utility model relates to transformer technical field, specifically is a side pin -in type transformer, including framework and the magnetic core of installing on the framework, the framework includes first base plate, the magnetic core installation channel of setting on first base plate and the needle row structure that can be around, the outside surface of magnetic core installation channel is around and is equipped with the winding structure for the transformation, the needle row structure includes a plurality of from first base plate lateral pin -in type lateral pin foot. The utility model adopts the pin foot structure of side pin -in type on the framework structure, and the pin foot laterally protrudes from the side of base plate, since the pin foot protrudes from the side, compared with the traditional vertical pin, its pin position is more flexible, can better control the position and height of the welding spot, can effectively improve the welding material accumulation, the phenomenon such as overcurrent, to optimize the problem of the high welding spot, and the pin foot that protrudes laterally is favorable to control the overall height of transformer finished product, saves the use space, improves the market competitiveness of product.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, specifically a side-pin type transformer. 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 commonly used in circuit structures to perform voltage transformation. Most existing transformers adopt a pin structure with vertical pins, that is, the pins extend perpendicularly to the plane of the substrate. This structure is easy to install and uniformly process, and is currently widely used in a large number of transformers. However, this pin structure with vertical pins is prone to high solder joints during manufacturing. Excessively high solder joints may lead to insufficient electrical clearance between pins or pads, increasing the risk of short circuits and potentially affecting the performance of the transformer or reducing its efficiency.

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

[0004] Regarding the aforementioned process problem of high solder joints in transformers, the technical solution adopted by this utility model is as follows:

[0005] A side-mounted pin transformer includes a frame and a magnetic core mounted on the frame. The frame includes a first substrate, a magnetic core mounting channel disposed on the first substrate, and a pin array structure for winding. The outer surface of the magnetic core mounting channel is wound with a winding structure for transformer operation. The pin array structure includes a plurality of lateral pins extending laterally from the first substrate.

[0006] As described above, in a side-mounted transformer, the pin array structure includes a plurality of vertical pins extending vertically from the first substrate, and the starting position of the extension of the vertical pins is correspondingly set at the starting position of the extension of the side pins.

[0007] As described above, in a side-pin type transformer, the frame includes an input side a and an output side b, with at least 5 side pins or at least 5 vertical pins located on the input side a as input pins, and at least 2 side pins or at least 2 vertical pins located on the output side b as output pins.

[0008] As described above, in a side-pin type transformer, the lateral pins or the vertical pins are respectively fitted with insulating sleeves.

[0009] As described above, in a side-pin type transformer, the lateral pins or the vertical pins are arranged sequentially along a straight line c, and the lateral pins or the vertical pins are arranged sequentially along a straight line d. The straight line c is parallel to the straight line d, and a spacing A is formed between the straight line c and the straight line d. The spacing A is between 32mm and 33mm.

[0010] In the side-pin type transformer described above, the pin pitch B between adjacent side pins ranges from 3.3mm to 3.8mm.

[0011] Alternatively, the value of the stitch distance B between adjacent vertical stitches may be between 3.3 mm and 3.8 mm.

[0012] As described above, in a side-pin type transformer, the maximum length C of the magnetic core is less than or equal to 22.2 mm, the maximum height D of the magnetic core is less than or equal to 15.2 mm, the maximum length E of the frame itself is less than or equal to 36.5 mm, and the maximum length F of the transformer including the lateral pins extending out is between 40.5 mm and 41.5 mm.

[0013] As described above, in a side-pin type transformer, the frame has two primary windings and one secondary winding near the position where the magnetic core is installed, so that the frame forms a four-layer winding structure from the inside out, and the surface of each winding structure is covered with an insulating layer.

[0014] As described above, in a side-pin type transformer, the primary winding is wound between the side pins, and the secondary winding is wound between the side pins.

[0015] As described above, in a side-pin type transformer, the surface of each winding structure is covered with at least two insulating layers.

[0016] The beneficial effects of this utility model are as follows:

[0017] This utility model adopts a side-insertion pin structure in the skeleton structure. The pins extend laterally from the side of the substrate. Since the pins extend from the side, compared with the traditional vertical pins, the pin positions are more flexible, and the position and height of the solder joints can be better controlled. This can effectively improve phenomena such as solder accumulation and overcurrent, thereby optimizing and solving the problem of high solder joints. In addition, the side-extending pins are conducive to controlling the overall height of the transformer product, saving space and improving the market competitiveness of the product. Attached Figure Description

[0018] Figure 1 This is a front view of a side-mounted pin transformer according to the present invention.

[0019] Figure 2This is a side view of a side-pin type transformer according to the present invention.

[0020] Figure 3 This is a top view of a side-pin type transformer according to the present invention.

[0021] Figure 4 This is a winding structure diagram of a side-pin type transformer according to the present invention.

[0022] Figure 5 This is a polarity diagram of a side-pin type transformer according to the present invention.

[0023] Figure 6 This is a structural diagram of the frame of an ED series transformer according to the present invention. Detailed Implementation

[0024] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] Figures 1 to 6 The embodiment 1 shows a side-mounted pin transformer, including a frame 100 and a magnetic core 200 mounted on the frame 100. The frame 100 includes a first substrate 101, a magnetic core mounting channel 103 provided on the first substrate 101, and a pin array structure 300 through which the core can be wound. The outer surface of the magnetic core mounting channel 103 is wound with a winding structure for transformer. The pin array structure 300 includes a plurality of lateral pins 1n; 2n; 3n; 4n; 5n; 6n; 8n extending laterally from the first substrate 101.

[0026] Specifically, in this embodiment, the skeleton 100 preferably adopts an ED series skeleton structure (see...). Figure 6The skeleton 100 can adopt a T-type pin structure. This ED-type skeleton structure has a first substrate 101, a second substrate 102, a magnetic core mounting channel 103, and a pin array structure 300 that can be wound through. The hollow, through-hole magnetic core mounting channel 103 is disposed between the first substrate 101 and the second substrate 102. The first substrate 101 has a plurality of pin positions 1; 2; 3; 4; 5; 6; 7; 8; 9; 10, wherein the effective pins include lateral pins 1n, 2n, 3n, 4n, 5n, 6n, and 8n extending from the first substrate 101, and unused pins 7, 9, and 10. The skeleton 100 includes an input side a and an output side b, and the plurality of lateral pins 1n, 2n, 3n, 4n, 5n, 6n, and 8n form respectively Two pin array structures 300 are located on the input side a and the output side b. The pin array structure 300 on the input side a uses at least five lateral pins 1n, 2n, 3n, 4n, and 5n as input pins, while the pin array structure 300 on the output side b uses at least two lateral pins 6n and 8n as output pins. Since the lateral pins 1n, 2n, 3n, 4n, 5n, 6n, and 8n extend from the sides of the first substrate 101, their pin positions are more flexible compared to traditional vertical pins. This allows for better control of the position and height of the solder joints, effectively improving phenomena such as solder accumulation and overcurrent, thus optimizing the solution to the problem of high solder joints. Furthermore, the laterally extended pins are beneficial for controlling the overall height of the finished transformer, saving space and improving the product's market competitiveness.

[0027] Furthermore, based on Example 1, Figure 5 Another preferred embodiment 101 of the transformer is shown, wherein one or more of the lateral pins 1n; 2n; 3n; 4n; 5n; 6n; 8n are respectively fitted with insulating sleeves 400 to meet safety requirements and improve insulation isolation effect.

[0028] Furthermore, based on Example 1, Figure 3 Another preferred embodiment 102 of the transformer is shown. Lateral pins 1n, 2n, 3n, 4n, and 5n are arranged sequentially along a straight line c, and lateral pins 6n and 8n are arranged sequentially along a straight line d. The straight lines c and d are parallel, and a spacing A is formed between the straight lines c and d. The spacing A ranges from 32mm to 33mm, preferably 32.5mm. The pin spacing B between adjacent lateral pins 1n, 2n, 3n, 4n, 5n, 6n, and 8n ranges from 3.3mm to 3.8mm, preferably 3.5mm. The pin structure improves the safety distance by widening the secondary side, making it less prone to failure during use, improving safety and service life, saving production costs and improving the economic efficiency of the product.

[0029] Figures 1 to 6This embodiment illustrates a side-pin type transformer. Based on embodiment 1, the pin array structure 300 of this embodiment further includes several vertical pins 1m, 2m, 3m, 4m, 5m, 6m, and 8m extending vertically from the first substrate 101. By combining the use of lateral and vertical pins, the adaptability of the finished transformer can be improved. The starting positions of the vertical pins 1m, 2m, 3m, 4m, 5m, 6m, and 8m are correspondingly set at the starting positions of the lateral pins 1n, 2n, 3n, 4n, 5n, 6n, and 8n. For example, the starting position of the vertical pin 1m corresponds to the starting position of the lateral pin 1n, the starting position of the vertical pin 2m corresponds to the starting position of the lateral pin 2n, and so on. The winding structure on the transformer can be adapted to wind around the lateral pins and / or vertical pins according to actual use to meet practical needs.

[0030] Specifically, in this embodiment, several vertical pins 1m; 2m; 3m; 4m; 5m; 6m; 8m form two pin array structures 300 located on the input side a and the output side b, respectively. The pin array structure 300 on the input side a uses at least 5 vertical pins 1m; 2m; 3m; 4m; 5m as input pins, and the pin array structure 300 on the output side b uses at least 2 vertical pins 6m; 8m as output pins. Combined with the laterally extended pins, compared with the traditional transformer structure with only vertical pins, its pin positions are more flexible and can adapt to more different application scenarios.

[0031] Furthermore, based on Example 2, Figure 5 Another preferred embodiment 201 of the transformer is shown, wherein one or more of the vertical pins 1m; 2m; 3m; 4m; 5m; 6m; 8m are respectively fitted with insulating sleeves 400 to meet safety requirements and improve insulation isolation effect.

[0032] Furthermore, based on Example 2, Figure 3 Another preferred embodiment 202 of the transformer is shown. Vertical pins 1m, 2m, 3m, 4m, and 5m are arranged sequentially along a straight line c, and vertical pins 6m and 8m are arranged sequentially along a straight line d. The straight lines c and d are parallel, and a spacing A is formed between the straight lines c and d. The spacing A ranges from 32mm to 33mm, preferably 32.5mm. The pin spacing B between adjacent vertical pins 1m, 2m, 3m, 4m, 5m, 6m, and 8m ranges from 3.3mm to 3.8mm, preferably 3.5mm. The pin structure improves the safety clearance by widening the secondary side, making it less prone to failure during use, improving safety and service life, saving production costs and improving the economic efficiency of the product.

[0033] Figure 4 and Figure 5 The following is an embodiment of a side-pin type transformer. Based on embodiment 1 or embodiment 2, the winding structure of the transformer is further restricted. The frame 100 is provided with two primary windings N1, N2, and N4 and one secondary winding N3 near the mounting core 200, so that the frame 100 forms a four-layer winding structure from the inside to the outside. The surface of each winding structure is covered with an insulating layer 500. The insulating layer 500 can be tape or adhesive paper, preferably layered tape.

[0034] Specifically, in this embodiment, the substrate 101 of the frame 100 has slots 104 for wire threading between adjacent pins. This winding structure can achieve a better transformer effect. Compared with transformers of the same power, this winding structure can achieve a smaller height, better performance, and lower cost. More specifically, the lateral pins 1n or vertical pins 1m are collectively referred to as pin 1, the lateral pins 2n or vertical pins 2m are collectively referred to as pin 2, and so on. The winding sequence of the winding structure is as follows: 1; 2; 3; 4; 5; 6; 8

[0036] The primary winding N1 starts from pin 3, passes through slot 104 and ends at pin 4, with a close winding number of 26TS. Insulating sleeves 400 are respectively fitted on pins 3 and 4.

[0037] The primary winding N2 starts from pin 1, passes through slot 104 and ends at pin 2, with a total of 6TS of close winding turns. It adopts a central close winding method, and pins 1 and 2 are respectively fitted with insulating sleeves 400.

[0038] The secondary winding N3 starts from pin 4, passes through slot 104 and ends at pin 5, with a close winding number of 20TS. Insulating sleeves 400 are respectively fitted on pins 4 and 5.

[0039] The primary winding N4 starts from pin 6, passes through slot 104 and ends at pin 8, with a close winding number of 25TS. Insulating sleeves 400 are respectively fitted on pins 6 and 8.

[0040] Each layer of winding structure is covered with at least two insulating layers 500.

[0041] Figures 1 to 3This embodiment 4 illustrates a side-pin type transformer. Based on embodiment 1 or embodiment 2, the external structure of the transformer is further restricted. Specifically, the maximum length C of the magnetic core 200 is less than or equal to 22.2 mm, the maximum height D of the magnetic core 200 is less than or equal to 15.2 mm, the maximum length E of the frame 100 itself is less than or equal to 36.5 mm, and the maximum length F of the side pins extending from the transformer (1 m, 2 m, 3 m, 4 m, 5 m, 6 m, 8 m) ranges from 40.5 mm to 41.5 mm, preferably 41 mm. This external structure is more suitable for use in different equipment or devices than conventional transformers, improving the adaptability of the transformer.

[0042] 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 side-mounted transformer, comprising a frame (100) and a magnetic core (200) mounted on the frame (100), characterized in that: The frame (100) includes a first substrate (101), a magnetic core mounting channel (103) disposed on the first substrate (101), and a pin array structure (300) through which the core mounting channel (103) can be wound. The outer surface of the magnetic core mounting channel (103) is wound with a winding structure for transformer. The pin array structure (300) includes a plurality of lateral pins (1n; 2n; 3n; 4n; 5n; 6n; 8n) extending laterally from the first substrate (101). The pin array structure (300) includes a plurality of vertical pins (1m; 2m; 3m; 4m; 5m; 6m; 8m) extending vertically from the first substrate (101), and the starting position of the vertical pins (1m; 2m; 3m; 4m; 5m; 6m; 8m) is set at the starting position of the lateral pins (1n; 2n; 3n; 4n; 5n; 6n; 8n). The lateral pins (1n; 2n; 3n; 4n; 5n; 6n; 8n) or the vertical pins (1m; 2m; 3m; 4m; 5m; 6m; 8m) are respectively fitted with insulating sleeves (400).

2. A side-pin type transformer according to claim 1, characterized in that: The skeleton (100) includes an input side a and an output side b. At least five of the lateral pins (1n; 2n; 3n; 4n; 5n) or at least five of the vertical pins (1m; 2m; 3m; 4m; 5m) are located on the input side a as input pins, and at least two of the lateral pins (6n; 8n) or at least two of the vertical pins (6m; 8m) are located on the output side b as output pins.

3. A side-pin type transformer according to claim 1, characterized in that: The lateral stitches (1n; 2n; 3n; 4n; 5n) or the vertical stitches (1m; 2m; 3m; 4m; 5m) are arranged sequentially along a straight line c, and the lateral stitches (6n; 8n) or the vertical stitches (6m; 8m) are arranged sequentially along a straight line d, with the straight line c parallel to the straight line d. A spacing A is formed between the straight line c and the straight line d, and the spacing A ranges from 32mm to 33mm.

4. A side-pin type transformer according to claim 1, characterized in that: The value of the stitch distance B between adjacent lateral stitches (1n; 2n; 3n; 4n; 5n; 6n; 8n) ranges from 3.3mm to 3.8mm; Alternatively, the value of the stitch spacing B between adjacent vertical stitches (1m; 2m; 3m; 4m; 5m; 6m; 8m) may be between 3.3mm and 3.8mm.

5. A side-pin type transformer according to claim 1, characterized in that: The maximum length C of the magnetic core (200) is less than or equal to 22.2 mm, the maximum height D of the magnetic core (200) is less than or equal to 15.2 mm, the maximum length E of the frame (100) itself is less than or equal to 36.5 mm, and the maximum length F of the transformer including the lateral pins is between 40.5 mm and 41.5 mm.

6. A side-pin type transformer according to any one of claims 1-5, characterized in that: The frame (100) has two primary windings (N1; N2; N4) and one secondary winding (N3) near the position where the magnetic core (200) is installed, so that the frame (100) forms a four-layer winding structure from the inside to the outside, and the surface of each winding structure is covered with an insulating layer (500).

7. A side-pin type transformer according to claim 6, characterized in that: The primary winding (N1) winds between the lateral pins (3n; 4n), the primary winding (N2) winds between the lateral pins (1n; 2n), the primary winding (N4) winds between the lateral pins (4n; 5n), and the secondary winding (N3) winds between the lateral pins (6n; 8n).

8. A side-pin type transformer according to claim 6, characterized in that: Each layer of winding structure is covered with at least two of the aforementioned insulating layers (500).

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