Modularized easy-to-assemble ultrathin dielectric layer electronic transformer circuit board structure

Abstract

The utility model discloses a modularized easy-to-assemble ultrathin dielectric layer electronic transformer circuit board structure, which comprises at least two layers of transformer circuit board main bodies which are stacked up and down, a positioning assembly used for connection is arranged between two adjacent layers of transformer circuit board main bodies, and the positioning assembly comprises a bearing piece. The four corners of the transformer circuit board body are each provided with one bearing piece, and a plug connector is arranged between every two vertically adjacent layers of bearing pieces. The bearing piece comprises a protruding block, an inserting hole is formed in the top of the protruding block, and a positioning hole is formed in the bottom of an inner cavity of the inserting hole. According to the utility model, the positioning blocks on the upper layer circuit board body are clamped in the positioning holes on the lower layer circuit board body, so that the positioning operation of two adjacent layers of circuit board bodies can be completed; therefore, the phenomenon that dislocation occurs between the multiple layers of transformer circuit board main bodies when the multiple layers of transformer circuit board main bodies are clamped and fixed by the magnetic core blocks subsequently is avoided, assembly is easy, and the assembly efficiency of the transformer circuit board main bodies and the magnetic core blocks is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit boards, and particularly relates to a modular and easy-to-assemble ultra-thin dielectric layer electronic transformer circuit board structure. Background Art

[0002] An electronic transformer is an electronic device that converts the alternating voltage of the commercial power supply into direct current and then forms a high-frequency alternating voltage output through semiconductor switching devices, electronic components, and high-frequency transformer windings. It is also an AC-DC-AC inverter circuit described in electronics theory.

[0003] With the continuous development of switching power supplies towards smaller volume, higher power density, and higher efficiency, as one of the key components in power electronic devices, transformers must necessarily adapt to this development trend. Planar transformers are a new type of high-power density transformers generated under this background. In particular, planar transformers composed of windings arranged on PCB boards have been widely used in power modules.

[0004] The patent document with the publication number CN216698073U discloses a planar transformer, which includes a planar magnetic core and at least two layers of PCB boards. The PCB boards are provided with openings through which the planar magnetic core can pass, and adjacent two layers of PCB boards are stacked. The PCB board includes a top layer, several intermediate circuit layers, and a bottom layer. Both the top layer and the bottom layer are insulating layers, and several intermediate circuit layers are arranged between the top layer and the bottom layer. Insulating separation layers are arranged between the top layer and the intermediate circuit layers, and between the bottom layer and the intermediate circuit layers. Since the thickness of the insulating separation layer is greater than the preset thickness, and in combination with the fact that both the top layer and the bottom layer are insulating layers, both the upper and lower surfaces of the PCB board can meet the assembly insulation requirements. Assembly personnel can directly install multiple layers of PCB boards on the planar magnetic core without considering the insulation requirements between adjacent two layers of PCB boards, nor smoothing the insulating film, which can effectively improve the installation efficiency of the planar transformer.

[0005] The above-mentioned planar transformer can solve corresponding technical problems. However, it clamps and fixes all the PCB boards in a stacked manner through the planar magnetic core. During the clamping process, misalignment is likely to occur between multiple layers of PCB boards, making it not easy to assemble, and thus reducing the assembly efficiency of the PCB board and the planar magnetic core. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a modular and easy-to-assemble ultra-thin dielectric layer electronic transformer circuit board structure to solve the technical defect that misalignment is likely to occur between layers of PCB boards in the existing planar transformer, making it not easy to assemble and reducing the assembly efficiency.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A modular and easily assembled ultra-thin dielectric layer electronic transformer circuit board structure, comprising at least two layers of transformer circuit board bodies stacked up and down, and a positioning component for connection is provided between two adjacent layers of the transformer circuit board bodies.

[0009] The positioning component includes a supporting member, and one supporting member is respectively provided at the four corners of the transformer circuit board body, and a plug-in member is provided between two adjacent supporting members up and down.

[0010] The supporting member includes a convex block, a jack is opened at the top of the convex block, and a positioning hole is opened at the bottom of the inner cavity of the jack.

[0011] The plug-in member includes a plug post, the top end of the plug post is connected to the corresponding convex block, the bottom end of the plug post penetrates through the corresponding jack to the inner cavity of the positioning hole and is fixedly connected with a positioning block.

[0012] As a further scheme of the present utility model, the transformer circuit board body includes a circuit board body, a receiving hole for the magnetic core block to pass through is opened at the center of the circuit board body, and one side of the supporting member is fixedly connected to the circuit board body.

[0013] As a further scheme of the present utility model, the diameter of the jack is smaller than the diameter of the positioning hole, and the top surface of the positioning block contacts the top inner wall surface of the positioning hole.

[0014] As a further scheme of the present utility model, the bottom surface diameter of the positioning block is smaller than its top surface diameter.

[0015] As a further scheme of the present utility model, a gap is jointly opened on the surfaces of the plug post and the positioning block.

[0016] As a further scheme of the present utility model, the top surface diameter of the plug post is larger than its bottom surface diameter, and a collar is slidably sleeved on the lower part of the surface of the plug post.

[0017] As a further scheme of the present utility model, the collar is located between two adjacent upper and lower convex blocks, and the inner diameter of the collar is larger than the bottom surface diameter of the plug post and smaller than the middle diameter of the plug post.

[0018] Compared with the prior art, the modular and easily assembled ultra-thin dielectric layer electronic transformer circuit board structure of the present utility model has the following beneficial effects:

[0019] By clamping the positioning block on the upper-layer circuit board body into the positioning hole on the lower-layer circuit board body, the positioning operation of two adjacent layers of circuit board bodies can be completed, thereby avoiding the phenomenon of misalignment between multiple layers of transformer circuit board bodies when the magnetic core block clamps and fixes multiple layers of transformer circuit board bodies subsequently, being easy to assemble, and thus improving the assembly efficiency of the transformer circuit board body and the magnetic core block. Description of the Drawings

[0020] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for use in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only individual cases of the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0021] Figure 1 Structural schematic diagram provided by the embodiment of the present utility model;

[0022] Figure 2 For Figure 1 Enlarged structural schematic diagram of point A in

[0023] Figure 3 Cross-sectional structural schematic of the positioning component in the embodiment of the present utility model Figure 1 ;

[0024] Figure 4 Cross-sectional structural schematic of the positioning component in the embodiment of the present utility model Figure 2 .

[0025] Reference numerals:

[0026] 100, main body of the transformer circuit board; 110, circuit board body; 120, accommodating hole;

[0027] 200, positioning component; 210, supporting member; 211, convex block; 212, insertion hole; 213, positioning hole; 220, plug-in member; 221, insertion post; 222, positioning block; 223, gap; 230, collar. Specific embodiments

[0028] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer and more understandable, the following further elaborates on the embodiments of the present utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present utility model.

[0030] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, an integral connection, or a detachable connection; it may be the communication inside two layers of components; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0031] See the attached Figures 1 - 4 As shown, an electronic transformer circuit board structure of a modular and easily assembled ultra-thin dielectric layer in an embodiment of the present utility model includes at least two layers of transformer circuit board bodies 100 stacked up and down, and a positioning component 200 for connection is provided between two adjacent layers of transformer circuit board bodies 100.

[0032] The positioning component 200 includes a supporting member 210. One supporting member 210 is provided at each of the four corners of the transformer circuit board body 100, and an insertion component 220 is provided between two adjacent upper and lower supporting members 210.

[0033] The supporting member 210 includes a convex block 211. A jack 212 is opened at the top of the convex block 211, and a positioning hole 213 is opened at the bottom of the inner cavity of the jack 212.

[0034] The insertion component 220 includes an insertion post 221. The top end of the insertion post 221 is connected to the corresponding convex block 211. The bottom end of the insertion post 221 passes through the corresponding jack 212 to the inner cavity of the positioning hole 213 and is fixedly connected with a positioning block 222.

[0035] The positioning block 222 located on the upper circuit board body 110 is aligned with the jack 212 located on the lower circuit board body 110, and the insertion post 221 is inserted into the inner cavity of the jack 212. At this time, the inner wall surface of the jack 212 presses on the positioning block 222, causing the positioning block 222 to move towards the center of the jack 212, and the insertion post 221 undergoes elastic deformation until the positioning block 222 is stuck in the inner cavity of the corresponding positioning hole 213. At this time, the positioning block 222 loses restraint, and the insertion post 221 rebounds and resets, thus completing the positioning operation of two adjacent layers of circuit board bodies 110, and further avoiding the phenomenon of misalignment between multiple layers of transformer circuit board bodies 100 when the magnetic core block clamps and fixes multiple layers of transformer circuit board bodies 100 later, which is easy to assemble.

[0036] By pushing the ring 230 upward with force, the ring 230 can be driven to slide upward on the surface of the plug post 221. The inner wall surface of the ring 230 can apply pressure to the surface of the plug post 221, causing the plug post 221 to undergo elastic deformation, thereby driving the positioning block 222 to move toward the center of the positioning hole 213 to the maximum limit. At this time, the positioning block 222 can be removed from the inner cavity of the positioning hole 213, and the separation operation of the two adjacent layers of the transformer circuit board body 100 can be completed.

[0037] In the embodiment of the utility model, the transformer circuit board body 100 includes a circuit board body 110 , a receiving hole 120 for the magnetic core block to pass through is opened at the center of the circuit board body 110 , and one side of the supporting member 210 is fixedly connected to the circuit board body 110 .

[0038] In order to achieve the snap-fitting effect and effectively prevent the positioning block 222 from easily escaping from the inner cavity of the positioning hole 213 , the diameter of the insertion hole 212 is smaller than the diameter of the positioning hole 213 , and the top surface of the positioning block 222 contacts the top of the inner wall of the positioning hole 213 .

[0039] In order to facilitate the alignment of the positioning block 222 and the insertion hole 212 , in the embodiment of the utility model, the bottom diameter of the positioning block 222 is smaller than the top diameter thereof.

[0040] In order to provide a movable space for the elastic deformation of the plug post 221 , a gap 223 is formed on the surfaces of the plug post 221 and the positioning block 222 in the embodiment of the utility model, thereby facilitating the positioning block 222 to be inserted into or out of the inner cavity of the positioning hole 213 .

[0041] In the embodiment of the utility model, in order to facilitate the removal of the positioning block 222 from the inner cavity of the positioning hole 213, the top surface diameter of the column 221 is larger than the bottom surface diameter thereof, and a ring 230 is provided on the lower sliding sleeve of the surface of the column 221. By pushing the ring 230 upward with force, the ring 230 can be driven to slide upward on the surface of the column 221, and the inner wall surface of the ring 230 can apply pressure to the surface of the column 221, so that the column 221 can undergo elastic deformation, thereby driving the positioning block 222 to move toward the center of the positioning hole 213.

[0042] In the embodiment of the utility model, the collar 230 is located between two adjacent layers of protrusions 211 , and the inner diameter of the collar 230 is larger than the bottom diameter of the plug post 221 , and the inner diameter of the collar 230 is smaller than the middle diameter of the plug post 221 .

[0043] The basic principles of the present invention have been shown and described above. The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. The descriptions in the above embodiments and the specification only illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention shall be included within the protection scope of the present invention.

Claims

1. A modular and easily assembled ultra-thin dielectric layer electronic transformer circuit board structure, characterized in that: It includes at least two layers of transformer circuit board bodies (100) arranged in an up-and-down stacked manner, and a positioning component (200) for connection is provided between adjacent two layers of the transformer circuit board bodies (100); Among them, the positioning component (200) includes a supporting member (210), and one supporting member (210) is provided at each of the four corners of the transformer circuit board body (100), and a plug-in member (220) is provided between the upper and lower adjacent two layers of the supporting members (210); The supporting member (210) includes a bump (211), a jack (212) is opened at the top of the bump (211), and a positioning hole (213) is opened at the bottom of the inner cavity of the jack (212); The plug-in member (220) includes a plug post (221), the top end of the plug post (221) is connected to the corresponding bump (211), and the bottom end of the plug post (221) penetrates through the corresponding jack (212) to the inner cavity of the positioning hole (213) and is fixedly connected with a positioning block (222).

2. The modular and easily assembled ultra-thin dielectric layer electronic transformer circuit board structure according to claim 1, wherein: The transformer circuit board body (100) includes a circuit board body (110), a receiving hole (120) for a magnetic core block to pass through is opened at the center of the circuit board body (110), and one side of the supporting member (210) is fixedly connected to the circuit board body (110).

3. The modular and easily assembled ultra-thin dielectric layer electronic transformer circuit board structure according to claim 2, wherein: The diameter of the jack (212) is smaller than the diameter of the positioning hole (213), and the top surface of the positioning block (222) contacts the top of the inner wall surface of the positioning hole (213).

4. The modular and easily assembled ultra-thin dielectric layer electronic transformer circuit board structure according to claim 3, characterized in that: The bottom surface diameter of the positioning block (222) is smaller than its top surface diameter.

5. The modular and easily assembled ultra-thin dielectric layer electronic transformer circuit board structure according to claim 4, wherein: A gap (223) is jointly opened on the surfaces of the plug post (221) and the positioning block (222).

6. The modular and easily assembled ultra-thin dielectric layer electronic transformer circuit board structure according to claim 5, wherein: The top surface diameter of the plug post (221) is larger than its bottom surface diameter, and a collar (230) is slidably sleeved on the lower part of the surface of the plug post (221).

7. The modular and easily assembled ultra-thin dielectric layer electronic transformer circuit board structure according to claim 6, wherein: The collar (230) is located between the upper and lower adjacent two layers of bumps (211), and the inner diameter of the collar (230) is larger than the bottom surface diameter of the plug post (221), and the inner diameter of the collar (230) is smaller than the middle diameter of the plug post (221).

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