Transformer

Abstract

The utility model discloses a transformer which comprises a magnetic core assembly, the magnetic core assembly comprises a first magnetic core and a second magnetic core which are coaxially arranged, a framework is sleeved on the first magnetic core, and a coil is wound on the second magnetic core; the framework is provided with a plurality of winding discs which are arranged coaxially with the first magnetic core at intervals, a slot is formed between every two adjacent winding discs, a coil is wound on each winding disc, and a copper sheet is inserted into each slot. According to the utility model, through the skeleton, the skeleton is provided with the winding disc and the slot which are respectively used for installing the coil and the copper sheet, the installation of the coil and the copper sheet is simpler and more convenient through the winding disc and the slot, meanwhile, a positioning function can be provided, the product quality is improved, and the product consistency is better; in addition, a traditional self-adhesive coil needs to be installed manually, automatic winding of the coil can be achieved through the framework, the product quality can be further improved, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a transformer. Background Art

[0002] A transformer is an electrical device used to change the voltage level of alternating current while maintaining the conservation of power. It is mainly composed of two or more coils (usually coils wound with copper wire) that transfer energy through magnetic coupling.

[0003] Traditional transformers are assembled with self-adhesive wire wraps and copper sheets. The self-adhesive wire wraps and copper sheets are difficult to position and have large size variations, resulting in poor product consistency. Utility Model Content

[0004] The main purpose of the utility model is to provide a transformer, aiming to solve the problem that the traditional transformer adopts self-adhesive wire package and copper sheet to be assembled together, the self-adhesive wire package and the copper sheet are difficult to position, the size jump is large, and the product consistency is poor.

[0005] To achieve the above object, the utility model provides a transformer, including a magnetic core assembly, wherein the magnetic core assembly includes a first magnetic core and a second magnetic core arranged coaxially, a skeleton is sleeved on the first magnetic core, and a coil is wound on the second magnetic core;

[0006] The frame is provided with a plurality of winding discs coaxially arranged with the first magnetic core at intervals, a slot is provided between two adjacent winding discs, a wire package is wound on the winding disc, and a copper sheet is inserted in the slot.

[0007] Optionally, the wire package is configured as a Mylar wire package.

[0008] Optionally, the transformer further includes a base assembly, the base assembly includes a base and a first copper bar disposed on the base, the legs of the copper sheets are connected to the first copper bar, and a plurality of copper sheets are connected in series via the first copper bar.

[0009] Optionally, the base assembly further includes a second copper bar disposed on the base, the copper sheets connected in series are connected to the second copper bar, and the second copper bar is provided with solder feet for connecting to a PCB board.

[0010] Optionally, the base is provided with a wire hole for plugging with the outlet pin of the coil.

[0011] Optionally, a plating layer is provided on the welding foot.

[0012] Optionally, the first copper bar, the second copper bar, and the copper sheet are all configured as oxygen-free copper structures.

[0013] Optionally, the base, the first copper bar, and the second copper bar are configured as an integral injection molding structure.

[0014] Optionally, the base is configured as a plastic structure.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: through the skeleton, the skeleton is provided with a winding disk and a slot for installing the wire package and the copper sheet respectively, and the winding disk and the slot can make the installation of the wire package and the copper sheet simpler and more convenient, and can also provide a positioning function, thereby improving product quality and improving product consistency; traditional self-adhesive wire packages require manual installation, and this embodiment can realize automatic winding of the wire package through the skeleton, which can further improve product quality and reduce labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional schematic diagram of the transformer of the utility model;

[0018] Figure 2 It is an exploded schematic diagram of the transformer of the utility model;

[0019] Figure 3 It is a schematic diagram of the base assembly of the utility model.

[0020] Description of Figure Numbers:

[0021] 1. Magnetic core assembly; 2. Base assembly; 11. First magnetic core; 12. Second magnetic core; 13. Skeleton; 14. Coil; 15. Wire package; 16. Copper sheet; 21. Base; 22. First copper bar; 23. Second copper bar; 131. Winding disk; 132. Slot; 211. Wire hole.

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0026] Traditional transformers are assembled with self-adhesive wire wraps and copper sheets. The self-adhesive wire wraps and copper sheets are difficult to position and have large size variations, resulting in poor product consistency.

[0027] In order to solve the above problems, the utility model provides a transformer. Figures 1 to 3 This is a specific embodiment of the transformer provided by the utility model.

[0028] Reference Figures 1 to 3 The transformer comprises a magnetic core assembly 1, wherein the magnetic core assembly 1 comprises a first magnetic core 11 and a second magnetic core 12 which are coaxially arranged, wherein a skeleton 13 is sleeved on the first magnetic core 11, and a coil 14 is wound on the second magnetic core 12;

[0029] The skeleton 13 is provided with a plurality of winding disks 131 coaxially arranged with the first magnetic core 11 at intervals, and a slot 132 is provided between two adjacent winding disks 131 . The winding disks 131 are wound with a wire package 15 , and a copper sheet 16 is inserted into the slot 132 .

[0030] In this embodiment, the skeleton 13 is provided with a winding disk 131 and a slot 132 for installing the wire package 15 and the copper sheet 16 respectively. The winding disk 131 and the slot 132 can make the installation of the wire package 15 and the copper sheet 16 simpler and more convenient, and can also provide a positioning function, thereby improving product quality and improving product consistency. Traditional self-adhesive wire packages require manual installation. In this embodiment, the skeleton 13 can realize automatic winding of the wire package 15, which can further improve product quality and reduce labor costs.

[0031] Furthermore, the wire package 15 is configured as a Mylar wire package. Traditional transformers use self-adhesive wire packages (enameled wire packages) for insulation, which will lose their stickiness after being stored for too long and are difficult to store. In this embodiment, by providing a skeleton 13 for insulation, the self-adhesive wire package can be replaced with a traditional film-wrapped wire, i.e., a Mylar wire package, which is easier to store.

[0032] The transformer also includes a base 21 component 2, the base 21 component 2 includes a base 21, a first copper bar 22 arranged on the base 21, the legs of the copper sheets 16 are connected to the first copper bar 22, and a plurality of copper sheets 16 are connected in series through the first copper bar 22. In order to insulate the traditional transformer, the copper sheets 16 need to be tinned and coated on both sides, which is costly. In this embodiment, the copper sheets 16 are connected in series through the first copper bar 22, so no insulation treatment is required, no tinning coating is required, and the cost is low. Specifically, the number of the first copper bar 22 is one less than the number of the copper sheets 16, and two adjacent copper sheets 16 are connected through one first copper bar 22.

[0033] Furthermore, the base 21 assembly 2 also includes a second copper bar 23 disposed on the base 21, and the copper sheets 16 in series are connected to the second copper bar 23, and the second copper bar 23 is provided with solder pins for connecting to the PCB board. Specifically, the number of the second copper bars 23 is set to two, and the two second copper bars 23 are respectively connected to the pins of two copper sheets 16 located at the two ends of the plurality of copper sheets 16 in series, so that the plurality of copper sheets 16 in series and the PCB board form a loop.

[0034] Furthermore, the base 21 is provided with a wire hole 211 for plugging with the pin of the coil 14. In this embodiment, the pin of the coil 14 is used to connect with the PCB board, and the pin of the coil 14 can be fixed through the wire hole 211 to ensure that the connection between the pin of the coil 14 and the PCB board is stable and reliable, and to avoid loosening of the connection between the pin of the coil 14 and the PCB board due to external vibration.

[0035] Furthermore, the solder pin is provided with an electroplating layer. In this embodiment, through electroplating, an electroplating layer with good conductivity can be formed on the surface of the solder pin, which helps to improve the conductivity of the solder joint, and can also improve its anti-oxidation and corrosion resistance, thereby extending the service life of the solder pin.

[0036] Furthermore, the first copper bar 22, the second copper bar 23, and the copper sheet 16 are all configured as oxygen-free copper structures. In this embodiment, the copper bar and the copper sheet 16 are made of oxygen-free copper. Since the electrical conductivity of oxygen-free copper is very high, the electrical conductivity of the copper bar and the copper sheet 16 can be improved. In addition, oxygen-free copper has good processability and plasticity, is easy to form, and can reduce processing costs. Moreover, oxygen-free copper does not contain oxides and other impurities, so that the copper bar and the copper sheet 16 have high oxidation resistance and corrosion resistance.

[0037] Furthermore, the base 21, the first copper bar 22, and the second copper bar 23 are set to an injection molding structure. In this embodiment, through injection molding, the connection between the base 21 and the first copper bar 22 and the second copper bar 23 can be made tighter and stronger, effectively improving the overall mechanical strength and stability. Injection molding can reduce the number of parts and processes in the assembly process, save human resources and manufacturing time, and reduce manufacturing costs.

[0038] Furthermore, the base 21 is configured as a plastic structure. In this embodiment, the base 21 is made of plastic, so that the base 21 has excellent insulation performance, and plastic has good plasticity and formability, and can be manufactured into complex geometric shapes and details by injection molding and other methods to meet various design requirements. The manufacturing cost of plastic is low and the processing process is simple.

[0039] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A transformer, characterized in that: It comprises a magnetic core assembly, wherein the magnetic core assembly comprises a first magnetic core and a second magnetic core which are coaxially arranged, wherein a skeleton is sleeved on the first magnetic core, and a coil is wound on the second magnetic core; The frame is provided with a plurality of winding discs coaxially arranged with the first magnetic core at intervals, a slot is provided between two adjacent winding discs, a wire package is wound on the winding disc, and a copper sheet is inserted in the slot.

2. The transformer according to claim 1, characterized in that The wire package is configured as a Mylar wire package.

3. The transformer according to claim 1, characterized in that The transformer also includes a base assembly, which includes a base and a first copper bar arranged on the base, the legs of the copper sheets are connected to the first copper bar, and a plurality of copper sheets are connected in series through the first copper bar.

4. The transformer according to claim 3, characterized in that: The base assembly also includes a second copper bar arranged on the base, the copper sheets connected in series are connected to the second copper bar, and the second copper bar is provided with solder feet for connecting to a PCB board.

5. The transformer according to claim 3, characterized in that: The base is provided with a wire hole for plugging with the outlet pin of the coil.

6. The transformer according to claim 4, characterized in that The welding foot is provided with an electroplating layer.

7. The transformer according to claim 4, characterized in that The first copper bar, the second copper bar, and the copper sheet are all configured as oxygen-free copper structures.

8. The transformer according to claim 4, characterized in that The base, the first copper bar, and the second copper bar are configured as an integral injection molding structure.

9. The transformer according to claim 4, characterized in that The base is configured as a plastic structure.

Images