A transformer for an LED lamp

Abstract

The utility model relates to transformer technical field, concretely is a kind of transformer for LED lamp, including framework and magnetic core, framework is respectively equipped with 2 primary winding and 1 secondary winding in the position close to the installation magnetic core, so that framework forms 3 layers winding structure from inside to outside, the surface of each layer winding structure is wrapped with insulating layer.The utility model selects EPC framework structure on the basis of traditional transformer structure, so that transformer can significantly reduce the proportion of height, can adapt to more narrow or height short installation position, the production process of film-wrapped wire is formed by insulating layer layered wrapping each layer winding structure, increase voltage endurance on the basis of original wire rod Reduce the case of installation pressure damage, improve wire rod performance, the overall winding structure of the transformer of the present application is more excellent than the performance of the traditional transformer winding structure, compared with the transformer of similar power, the winding structure height of the transformer of the present application is smaller, better performance, lower cost.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, specifically a transformer for LED lights. 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 for voltage transformation. It is widely used in LED lighting fixtures. However, LED lighting fixtures have certain requirements for installation space. When encountering some narrow or height-restricted installation locations, the height of the suitable transformer can easily affect the actual installation. Moreover, in narrow or height-restricted installation locations, the transformer is easily damaged by pressure. In order to adapt to the installation locations of LED lighting fixtures with height restrictions, we need to develop a transformer for LED lights to meet the needs of users. Summary of the Invention

[0003] Regarding the aforementioned technical problem of adapting to the installation location of LED lighting fixtures with height restrictions, the technical solution adopted by this utility model is as follows: A transformer for LED lights includes a frame and a magnetic core mounted on the frame. The frame has a first primary winding, a second primary winding, and a secondary winding near the magnetic core, forming a three-layer winding structure from the inside out. The surface of each winding structure is covered with an insulating layer.

[0004] As described above, a transformer for LED lights has a maximum height D of less than or equal to 9.5 mm.

[0005] As described above, a transformer for LED lights has a frame including an input side a and an output side b. The frame has at least six pins on both the input side a and the output side b. The pins include a first pin, a second pin, a third pin, a fourth pin, a fifth pin, and a sixth pin. The pins can be passed through by either the primary winding or the secondary winding.

[0006] As described above, in a transformer for LED lights, the first pin, the second pin, the third pin, and the fourth pin are located on the input side a as input pins, and the fifth pin and the sixth pin are located on the output side b as output pins.

[0007] As described above, in a transformer for LED lights, the first primary winding is wound between the first pin and the second pin, the second primary winding is wound between the third pin and the fourth pin, and the secondary winding is wound between the fifth pin and the sixth pin.

[0008] As described above, in a transformer for LED lights, the third pin, the fifth pin, and the sixth pin are each fitted with an insulating sleeve.

[0009] As described above, in a transformer for LED lights, the first pin, the second pin, the third pin, and the fourth pin are arranged sequentially along a straight line c, and the fifth pin and the sixth pin 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 ranges from 17mm to 19mm.

[0010] In the transformer for LED lights described above, the pin pitch B between adjacent pins ranges from 2.7 mm to 3.3 mm.

[0011] As described above, in a transformer for LED lights, the maximum length C of the magnetic core is less than or equal to 15.5 mm, and the maximum width E of the frame is less than or equal to 22.5 mm.

[0012] As described above, a transformer for LED lights has at least three insulating layers covering the surface of each winding structure.

[0013] The beneficial effects of this utility model are as follows: This invention utilizes an EPC-type frame structure based on the traditional transformer structure, significantly reducing the transformer's height and adapting it to narrower or shorter installation locations. A film-coated wire production process, where each layer of the winding structure is wrapped with an insulating layer, increases the wire's withstand voltage, reducing the risk of damage from pressure during installation and improving wire performance. The overall winding structure of this design offers superior performance compared to traditional transformer winding structures. Compared to transformers of similar power, this design features a shorter winding height, better performance, and lower cost. Attached Figure Description

[0014] Figure 1 This is a front view of a transformer for LED lights according to the present invention.

[0015] Figure 2 This is a side view of a transformer for LED lights according to the present invention.

[0016] Figure 3 This is a top view of a transformer for LED lights according to the present invention.

[0017] Figure 4 This is a winding structure diagram of a transformer for LED lamps according to the present invention.

[0018] Figure 5This is a polarity diagram of a transformer for LED lights according to the present invention.

[0019] Figure 6 A reference diagram of the skeleton structure of the EPC series is provided. Detailed Implementation

[0020] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] Figures 1 to 5 The transformer for LED lamp shown in Embodiment 1 includes a frame 100 and a magnetic core 200 mounted on the frame 100. The frame 100 is provided with a first primary winding N1, a second primary winding N2 and a secondary winding N3 near the mounting position of the magnetic core 200, so that the frame 100 forms a three-layer winding structure from the inside to the outside, and the surface of each winding structure is covered with an insulating layer 400.

[0022] Specifically, in this embodiment, the skeleton 100 preferably adopts an EPC series skeleton structure (see reference). Figure 6 This EPC-type frame structure has a base plate 101 and a core mounting channel 102. The hollow, through-hole core mounting channel 102 is placed horizontally on the base plate 101. The base plate 101 can be used to set several pin structures. The distance between the bottom of the base plate 101 and the top of the winding structure, i.e., the maximum height D of the transformer, is preferably less than or equal to 9.5 mm to further control the overall height of the transformer. The primary winding is used to receive the voltage and current provided by the power supply, and the secondary winding is used to provide voltage and current to the load. The first primary winding N1, the second primary winding N2, and the secondary winding N3 are wound around the outside of the core mounting channel 102 of the frame 100, forming a first layer of winding structure N1, a second layer of winding structure N2, and a third layer of winding structure N3 respectively wound from the outer surface of the core mounting channel 102 towards the outside. Figure 4 The PIN in the diagram indicates the pin position near the substrate 101 to clarify the location of the winding structure. More specifically, the surface of each winding structure is wrapped with an insulating layer 400, which enhances the withstand voltage and improves the wire performance while meeting the normal voltage conversion function.

[0023] Furthermore, based on Example 1, Figure 4 Another preferred embodiment 2 of the transformer is shown, wherein the surface of each winding structure is covered with at least three insulating layers 400, which can be tape or adhesive paper, preferably layered tape.

[0024] Furthermore, based on Example 1, Figure 3 and Figure 5Another preferred embodiment 3 of the transformer is shown. The frame 100 includes an input side a and an output side b. The frame 100 is provided with at least 6 pins on the input side a and the output side b respectively. The pins include a first pin 1, a second pin 2, a third pin 3, a fourth pin 4, a fifth pin 5 and a sixth pin 6. The first pin 1, the second pin 2, the third pin 3, the fourth pin 4, the fifth pin 5 and the sixth pin 6 can be wound through by the primary winding or the secondary winding. The first pin 1, the second pin 2, the third pin 3 and the fourth pin 4 are located on the input side a as input pins, and the fifth pin 5 and the sixth pin 6 are located on the output side b as output pins. The primary winding N1 winds between the first pin 1 and the second pin 2; the primary winding N2 winds between the third pin 3 and the fourth pin 4; and the secondary winding N3 winds between the fifth pin 5 and the sixth pin 6. Specifically, in this embodiment, the substrate 101 of the frame 100 has slots 103 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 winding sequence of the winding structure is as follows: The primary winding N1 starts from the first pin 1 and winds through the slot 103 between the first pin 1 and the second pin 2 to the second pin 2, with a total of 160TS of close winding turns. The primary winding N2 starts from the third pin 3, passes through the slot 103 between the third pin 3 and the fourth pin 4, and ends at the fourth pin 4, with a close winding number of 23TS. The secondary winding N3 starts from the sixth pin 6, winds through the slot 103 between the fifth pin 5 and the sixth pin 6, and ends at the fifth pin 5, with a total of 22TS of close winding turns. Preferably, three layers of insulating tape are used to isolate each winding structure.

[0025] Furthermore, based on Example 1, Figure 5 Another preferred embodiment 4 of the transformer is shown, wherein the third pin 3, the fifth pin 5, and the sixth pin 6 are respectively fitted with insulating sleeves 300.

[0026] Furthermore, based on Example 1, Figure 3Another preferred embodiment 5 of the transformer is shown, wherein the first pin 1, the second pin 2, the third pin 3 and the fourth pin 4 are arranged sequentially along a straight line c, and the fifth pin 5 and the sixth pin 6 are arranged sequentially along a straight line d. The straight line c is parallel to the straight line d, and the spacing between the straight line c and the straight line d forms a row spacing A. The value of the row spacing A is between 17mm and 19mm, and 18mm is preferred. The stitch spacing B between adjacent first stitch 1, second stitch 2, third stitch 3, fourth stitch 4, fifth stitch 5 and sixth stitch 6 is between 2.7mm and 3.3mm, with 3mm being preferred.

[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 6, where the maximum length C of the magnetic core 200 is less than or equal to 15.5 mm and the maximum width E of the frame 100 is less than or equal to 22.5 mm. Compared with transformers of the same power, this shape structure can achieve a smaller height, better performance and lower cost.

[0029] 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 LED lamp, comprising a frame (100) and a magnetic core (200) mounted on the frame (100), characterized in that: The skeleton (100) adopts an EPC type skeleton structure. The skeleton (100) is provided with a first primary winding (N1), a second primary winding (N2) and a secondary winding (N3) near the position where the magnetic core (200) is installed, so that the skeleton (100) forms a 3-layer winding structure from the inside to the outside, and the surface of each winding structure is covered with an insulating layer (400).

2. A transformer for LED lamps according to claim 1, characterized in that: The maximum height D of the transformer is less than or equal to 9.5 mm.

3. A transformer for LED lamps according to claim 1, characterized in that: The frame (100) includes an input side a and an output side b. The frame (100) has at least 6 pins on the input side a and the output side b respectively. The pins include a first pin (1), a second pin (2), a third pin (3), a fourth pin (4), a fifth pin (5), and a sixth pin (6). The pins can be passed through by the primary winding or the secondary winding.

4. A transformer for LED lamps according to claim 3, characterized in that: The first pin (1), the second pin (2), the third pin (3) and the fourth pin (4) are located on the input side a as input pins, and the fifth pin (5) and the sixth pin (6) are located on the output side b as output pins.

5. A transformer for LED lamps according to claim 4, characterized in that: The first primary winding (N1) passes between the first pin (1) and the second pin (2), the second primary winding (N2) passes between the third pin (3) and the fourth pin (4), and the secondary winding (N3) passes between the fifth pin (5) and the sixth pin (6).

6. A transformer for LED lamps according to claim 4, characterized in that: The third pin (3), the fifth pin (5), and the sixth pin (6) are respectively fitted with insulating sleeves (300).

7. A transformer for LED lamps according to claim 4, characterized in that: The first stitch (1), the second stitch (2), the third stitch (3) and the fourth stitch (4) are arranged sequentially along a straight line c, and the fifth stitch (5) and the sixth stitch (6) are arranged sequentially along a straight line d. The straight line c is parallel to the straight line d, and the straight line c and the straight line d form a spacing A between them. The spacing A ranges from 17mm to 19mm.

8. A transformer for LED lamps according to claim 4, characterized in that: The value of the stitch distance B between adjacent stitches ranges from 2.7 mm to 3.3 mm.

9. A transformer for LED lamps according to claim 1, characterized in that: The maximum length C of the magnetic core (200) is less than or equal to 15.5 mm, and the maximum width E of the skeleton (100) is less than or equal to 22.5 mm.

10. A transformer for LED lamps according to any one of claims 1-9, characterized in that: Each layer of winding structure is covered with at least three insulating layers (400).

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