PCB transformer convenient to assemble

Abstract

The PCB transformer convenient to assemble comprises a PCB with a coil winding, an upper magnetic core and a lower magnetic core, the PCB is located between the upper magnetic core and the lower magnetic core, and a positioning structure facilitating installation and alignment of the upper magnetic core and the lower magnetic core is arranged between the upper magnetic core and the lower magnetic core. According to the utility model, through the positioning structure, the upper magnetic core and the lower magnetic core can be installed and aligned, the installation process is simple and convenient to operate, the assembly efficiency is high, and the assembly structure is stable.

Description

Technical Field

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

[0002] The existing PCB transformers usually consist of two magnetic cores, and a PCB board with a coil winding is arranged between the two magnetic cores. When assembling the PCB transformer, the PCB board is first placed between the two magnetic cores, and then the two magnetic cores are bonded and fixed with glue.

[0003] During the process of bonding and fixing the two magnetic cores, it is necessary to apply glue to the contact surfaces of the two magnetic cores, align the edges of the two magnetic cores, and then apply a certain external force to make the two magnetic cores firmly bonded. That is, when assembling and fixing the two magnetic cores, it is necessary to align the edges of the two magnetic cores to prevent the two magnetic cores from being stacked unevenly, resulting in a large assembly error, which affects the working performance of the transformer. However, the steps required for aligning and fixing the two magnetic cores are relatively cumbersome, and it takes a certain amount of time to align the two magnetic cores, resulting in low assembly efficiency.

[0004] Therefore, the existing technology needs to be improved. Summary of the Utility Model

[0005] In view of the above deficiencies of the existing technology, the utility model provides a PCB transformer convenient for assembly, which can have a positioning structure, is easy to install, has high assembly efficiency, and a stable assembly structure.

[0006] In order to achieve the above object, the utility model adopts the following technical solutions:

[0007] A PCB transformer convenient for assembly, comprising a PCB board with a coil winding, an upper magnetic core and a lower magnetic core. The PCB board is located between the upper magnetic core and the lower magnetic core, and a positioning structure for facilitating the installation and alignment of the upper magnetic core and the lower magnetic core is arranged between the upper magnetic core and the lower magnetic core.

[0008] Further, the positioning structure includes a clip and positioning grooves respectively arranged on the upper magnetic core and the lower magnetic core. The two ends of the clip are respectively clamped with the positioning grooves on the upper magnetic core and the lower magnetic core, so that the upper magnetic core and the lower magnetic core are installed and aligned.

[0009] Further, a clamping groove is arranged in the positioning groove, and clamping members are respectively arranged at the two ends of the clip. The clamping members are clamped with the clamping groove.

[0010] Further, an inclined chamfer is arranged on the clamping member.

[0011] Further, the clip is arranged in a U shape.

[0012] Further, the clip is a plastic clip.

[0013] Further, when the clip is snap-fitted with the positioning groove, the bottom surface of the lower magnetic core is flush with the surface of the clip.

[0014] Further, the positioning grooves are respectively arranged in the middle of both sides of the top surface of the upper magnetic core and the middle of both sides of the bottom surface of the lower magnetic core.

[0015] Further, the lower magnetic core is provided with convex columns, the upper magnetic core is provided with grooves, the PCB board is sleeved on the convex columns, and a gap is provided between the convex columns and the grooves.

[0016] Further, the height of the convex columns is greater than the thickness of the PCB board.

[0017] Compared with the prior art, the PCB transformer facilitating assembly provided by the present utility model includes a PCB board containing a coil winding, an upper magnetic core and a lower magnetic core. The PCB board is located between the upper magnetic core and the lower magnetic core, and a positioning structure facilitating the installation and alignment of the upper magnetic core and the lower magnetic core is provided between the upper magnetic core and the lower magnetic core. For the present utility model, through the positioning structure, the upper magnetic core and the lower magnetic core can be installed and aligned, the installation process is simple and convenient, the assembly efficiency is high, and the assembly structure is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0019] Figure 1 It is a schematic structural diagram of the PCB transformer facilitating assembly provided by the present utility model.

[0020] Figure 2 It is an assembly schematic diagram of the PCB transformer facilitating assembly provided by the present utility model from one angle.

[0021] Figure 3 It is an assembly schematic diagram of the PCB transformer facilitating assembly provided by the present utility model from another angle.

[0022] Figure 4 It is a cross-sectional schematic diagram of the PCB transformer facilitating assembly provided by the present utility model.

[0023] Description of the reference numerals in the drawings:

[0024] PCB board - 1, upper magnetic core - 2, lower magnetic core - 3, positioning structure - 4, clip - 5, positioning groove - 6, clamping groove - 7, clamping part - 8, chamfer - 9, convex post - 10, groove - 11, gap - 12. Detailed implementation mode

[0025] To facilitate the understanding of this application, the following will provide a more comprehensive description of this application with reference to relevant attached drawings. Embodiments of this application are shown in the attached drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0027] In this utility model, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the attached drawings. These terms are mainly used to better describe this utility model and its embodiments and are not used to limit that the indicated device, element or component must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0028] In addition, the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element. When used herein, the singular forms of "a", "an" and "the" may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "include / contain" or "have", etc. specify the existence of the stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the existence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0030] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0031] As Figure 1 , Figure 2 and Figure 3 shown, the present utility model provides a PCB transformer that is convenient for assembly, including a PCB board 1 containing a coil winding, an upper magnetic core 2 and a lower magnetic core 3. The PCB board 1 is located between the upper magnetic core 2 and the lower magnetic core 3, and a positioning structure 4 for facilitating the installation and alignment of the upper magnetic core 2 and the lower magnetic core 3 is provided between the upper magnetic core 2 and the lower magnetic core 3. It can be understood that through the positioning structure 4, the upper magnetic core 2 and the lower magnetic core 3 can be installed and aligned without manually aligning the edges of the upper magnetic core 2 and the lower magnetic core 3 by the naked eye.

[0032] Compared with the prior art, in the technical solution of the present utility model, through the positioning structure 4, the upper magnetic core 2 and the lower magnetic core 3 can be installed and aligned. The installation process is simple and convenient, the assembly efficiency is high, and the assembly structure is stable.

[0033] Further, the positioning structure 4 includes a clip 5 and positioning grooves 6 respectively provided on the upper magnetic core 2 and the lower magnetic core 3. Both ends of the clip 5 are respectively clamped with the positioning grooves 6 on the upper magnetic core 2 and the lower magnetic core 3, so that the upper magnetic core 2 and the lower magnetic core 3 are installed and aligned. It can be understood that the fixture has a certain elasticity, which can make the clip 5 snap into the positioning groove 6. The width of the clip 5 is the same as the width of the positioning groove 6. When the positioning groove 6 is clamped with the clip 5, the edges between the upper magnetic core 2 and the lower magnetic core 3 are aligned, that is, the upper magnetic core 2 and the lower magnetic core 3 are assembled and aligned.

[0034] It should be noted that before the edges of the upper magnetic core 2 and the lower magnetic core 3 are aligned, an adhesive needs to be applied to the upper magnetic core 2 and the lower magnetic core 3, and then the upper magnetic core 2 and the lower magnetic core 3 are made easier to align. In this application, when the clamping member 5 is engaged with the positioning groove 6, at this time, the edges between the upper magnetic core 2 and the lower magnetic core 3 are automatically aligned, that is, there is no need for manual visual alignment. After the clamping member 5 is engaged with the positioning groove 6, the clamping member 5 can make the upper magnetic core 2 and the lower magnetic core 3 abut against each other, making the assembly between the upper magnetic core 2 and the lower magnetic core 3 more stable.

[0035] Further, a clamping groove 7 is provided in the positioning groove 6, and clamping members 8 are respectively provided at both ends of the clamping member 5, and the clamping members 8 are engaged with the clamping groove 7. It can be understood that the sizes of the clamping groove 7 and the clamping members 8 are mutually adapted, so that after the clamping members 8 are engaged with the clamping groove, the clamping members 8 will not loosen relative to the clamping groove 7, ensuring the accuracy and stability of the assembly between the upper magnetic core 2 and the lower magnetic core 3.

[0036] Further, chamfered corners 9 are provided on the clamping members 8, and the chamfered corners 9 facilitate the clamping of both ends of the clamping member 5 in the positioning groove 6, effectively improving the assembly efficiency.

[0037] Further, the clamping member 5 is arranged in a U shape and can be adapted to the outer contours of the upper magnetic core 2 and the lower magnetic core 3, so that the clamping member 5 can fit with the upper magnetic core 2 and the lower magnetic core 3, making the assembly of the clamping member 5 with the upper magnetic core 2 and the lower magnetic core 3 more stable.

[0038] Preferably, the clamping member 5 is a plastic clamping member 5. The plastic clamping member 5 has a certain toughness and elasticity, which can enable the clamping member 5 to enter the positioning groove 6 under certain deformation conditions, and the clamping members 8 at both ends of the clamping member 5 are engaged with the clamping groove 7 in the positioning groove 6, so that the clamping member 5 clamps the upper magnetic core 2 and the lower magnetic core 3, making the assembly of the upper magnetic core 2 and the lower magnetic core 3 more stable.

[0039] Further, when the clamping member 5 is engaged with the positioning groove 6, the bottom surface of the lower magnetic core 3 is flush with the surface of the clamping member 5. It can be understood that the lower magnetic core 3 is to be installed on the circuit board, that is, the bottom surface of the lower magnetic core 3 is flush with the surface of the clamping member 5, which can make the lower magnetic core 3 lie flat on the circuit board, making the installation of the transformer and the circuit board more stable.

[0040] Preferably, the positioning grooves 6 are respectively arranged in the middle of both sides of the top surface of the upper magnetic core 2 and the middle of both sides of the bottom surface of the lower magnetic core 3, which can make the forces exerted by the clamping member 5 on the upper magnetic core 2 and the lower magnetic core 3 be evenly distributed on each part of the upper magnetic core 2 and the lower magnetic core 3, so that the fit between the upper magnetic core 2 and the lower magnetic core 3 is more stable.

[0041] Furthermore, as Figure 3 and Figure 4 shown, a convex column 10 is arranged on the lower magnetic core 3, a groove 11 is arranged on the upper magnetic core 2, the PCB board 1 is sleeved on the convex column 10, and a gap 12 is arranged between the convex column 10 and the groove 11. The gap 12 can make the performance of the transformer better.

[0042] Furthermore, the height of the convex column 10 is greater than the thickness of the PCB board 1. It can be understood that the height of the convex column 10 being greater than the thickness of the PCB board 1 makes a relatively wide spacing maintained between the PCB board 1 and the upper magnetic core 2. This spacing is beneficial to the heat dissipation of the PCB board 1 and ensures that the transformer can work normally.

[0043] In summary, for the PCB transformer facilitating assembly provided by the present invention, the clamping member can make the upper magnetic core and the lower magnetic core abut against each other, and the clamping member will not become loose relative to the clamping groove, that is, the assembly between the upper magnetic core and the lower magnetic core is more stable. The chamfer is convenient for the clamping members at both ends of the clamping member to be stuck in the positioning grooves, effectively improving the assembly efficiency. The bottom surface of the lower magnetic core is flush with the surface of the clamping member, which can make the lower magnetic core be placed flat on the circuit board, that is, the installation of the transformer and the circuit board is more stable. Compared with the prior art, in the technical solution of the present invention, through the positioning structure, the upper magnetic core and the lower magnetic core can be installed and aligned, the installation process is simple and convenient, the assembly efficiency is high, and the assembly structure is firm.

[0044] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the spirit and scope protected by the present invention and the claims. These all fall within the protection scope of the present invention.

Claims

1. A PCB transformer convenient for assembly, characterized in that, It includes a PCB board (1) with a coil winding, an upper magnetic core (2) and a lower magnetic core (3). The PCB board (1) is located between the upper magnetic core (2) and the lower magnetic core (3), and a positioning structure (4) for facilitating the installation and alignment of the upper magnetic core (2) and the lower magnetic core (3) is provided between the upper magnetic core (2) and the lower magnetic core (3). The positioning structure (4) includes a clip (5) and positioning grooves (6) respectively arranged on the upper magnetic core (2) and the lower magnetic core (3). The two ends of the clip (5) are respectively clamped with the positioning grooves (6) on the upper magnetic core (2) and the lower magnetic core (3), so that the upper magnetic core (2) and the lower magnetic core (3) are installed and aligned.

2. The PCB transformer facilitating assembly according to claim 1, wherein A clamping groove (7) is arranged in the positioning groove (6), and clamping members (8) are respectively arranged at the two ends of the clip (5). The clamping members (8) are clamped with the clamping groove (7).

3. The PCB transformer facilitating assembly according to claim 2, wherein, An inclined chamfer (9) is arranged on the clamping member (8).

4. The PCB transformer facilitating assembly according to claim 1, wherein The clip (5) is arranged in a U shape.

5. The PCB transformer facilitating assembly according to claim 1, wherein The clip (5) is a plastic clip.

6. The PCB transformer convenient for assembly according to claim 1, wherein When the clip (5) is clamped with the positioning groove (6), the bottom surface of the lower magnetic core (3) is flush with the surface of the clip (5).

7. The PCB transformer convenient for assembly according to claim 1, wherein, The positioning grooves (6) are respectively arranged in the middle of both sides of the top surface of the upper magnetic core (2) and the middle of both sides of the bottom surface of the lower magnetic core (3).

8. The PCB transformer convenient for assembly according to claim 1, characterized in that, A convex column (10) is arranged on the lower magnetic core (3), a groove (11) is arranged on the upper magnetic core (2), the PCB board (1) is sleeved on the convex column (10), and a gap (12) is arranged between the convex column (10) and the groove (11).

9. The PCB transformer facilitating assembly according to claim 8, wherein The height of the convex column (10) is greater than the thickness of the PCB board (1).

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