CN217588651U

CN217588651U - SMD transformer and PCBA circuit board

Info

Publication number: CN217588651U
Application number: CN202221207142.1U
Authority: CN
Inventors: 黄常城; 杨明华; 唐鹏飞
Original assignee: Shenzhen Yuehongpu Intelligent Photoelectric Technology Co ltd
Current assignee: Shenzhen Yuehongpu Intelligent Photoelectric Technology Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-10-14
Anticipated expiration: 2032-05-19

Abstract

The utility model discloses a SMD transformer and PCBA circuit board, wherein, SMD transformer includes transformer skeleton and a plurality of pin, and transformer skeleton sinks into the installation and leads to the inslot. The utility model discloses a set the pin to first connecting portion, second connecting portion and the third connecting portion that connect gradually along the vertical direction of transformer skeleton, and the third connecting portion are close to transformer skeleton's bottom, and first connecting portion are close to transformer skeleton's top, and first connecting portion are used for with PCB board overlap joint. So, through setting up the mounting groove on the PCB board, sink into the mounting groove with the transformer skeleton in, can utilize the PCB plate thickness to reduced the final thickness of whole PCBA circuit board, simultaneously, with the technical scheme of first connecting portion overlap joint on the PCB board, compare the grafting scheme in prior art, it need not be to the hole, thereby makes the installation effectiveness higher.

Description

SMD transformer and PCBA circuit board

Technical Field

The utility model relates to a surface mounting technology field of microelectronics, in particular to SMD transformer and PCBA circuit board.

Background

With the development of the fields of mobile information products, household electrical appliance products, green lighting and the like, a large number of components such as rectifier bridges, diodes, transformers and the like are used for matched electronic products, and higher requirements are put forward for the light, thin, small and dense components of the products. The pins are important means for mounting and fixing the transformer. The existing patch type transformer is directly attached to the surface of a circuit board, and the thickness of the transformer is large, so that the thickness of the circuit board after installation is large.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a SMD transformer aims at reducing the thickness of PCBA circuit board.

In order to achieve the above object, the utility model provides a SMD transformer includes:

a transformer bobbin;

the pins comprise a first connecting part, a second connecting part and a third connecting part which are sequentially arranged in the vertical direction of the transformer framework, the second connecting part is used for connecting the first connecting part and the third connecting part, the third connecting part is connected with the transformer framework, the third connecting part is close to the bottom of the transformer framework, and the first connecting part is close to the top of the transformer framework; the first connecting part is used for being lapped with the PCB.

In an embodiment, the third connection portion is inclined toward the top of the patch transformer.

In one embodiment, the third connecting portion is flush with the bottom of the transformer bobbin.

In one embodiment, the first connecting portion is parallel to the third connecting portion.

In an embodiment, an included angle between the second connection portion and the third connection portion is α, which satisfies: alpha is more than or equal to 60 degrees and less than or equal to 120 degrees.

In one embodiment, the pins are arranged in a multi-fold manner.

In one embodiment, the first connecting portion is disposed in a flat shape.

The utility model also provides a PCBA circuit board, which comprises a PCB board and the surface mount transformer; the PCB is provided with an installation through groove; the transformer framework sinks into the installation through groove, and the first connecting portion is in lap joint with the PCB.

In one embodiment, the bottom surface of the transformer bobbin is flush with the bottom surface of the PCB board.

In one embodiment, the first connecting portion is soldered on the PCB.

The technical scheme of the utility model includes transformer skeleton and a plurality of pins, each pin includes first connecting portion, second connecting portion and third connecting portion that set gradually along the vertical direction of transformer skeleton, the second connecting portion are used for connecting the first connecting portion with the third connecting portion, the third connecting portion with transformer skeleton is connected, just the third connecting portion are close to the bottom of transformer skeleton, the first connecting portion are close to the top of transformer skeleton; the first connecting part is used for being lapped with the PCB. In this manner, the user can easily and accurately select the desired target,

the utility model discloses a set the pin to the edge first connecting portion, second connecting portion and the third connecting portion that the vertical direction of transformer skeleton connected gradually, just the third connecting portion are close to transformer skeleton's bottom, first connecting portion are close to transformer skeleton's top, first connecting portion be used for with PCB board overlap joint. So, through setting up the mounting groove on the PCB board, sink into the mounting groove with the transformer skeleton in, can utilize the PCB plate thickness to reduced the final thickness of whole PCBA circuit board, simultaneously, with the technical scheme of first connecting portion overlap joint on the PCB board, compare the grafting scheme in prior art, it need not be to the hole, thereby makes the installation effectiveness higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a surface mount transformer of the present invention;

fig. 2 is a schematic structural diagram of another embodiment of the patch transformer of the present invention;

fig. 3 is a schematic structural diagram of another embodiment of the patch transformer of the present invention;

fig. 4 is a schematic structural diagram of an embodiment of the PCBA circuit board of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Surface-mounted transformer	210	First connecting part
100	Transformer framework	220	Second connecting part
				200	Pin	230	Third connecting part
20	PCB board	21	Mounting through hole
				1	PCBA circuit board

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear \8230;) are involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship between the components in a specific posture (as shown in the attached drawings), the motion situation, etc., and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a SMD transformer.

In the embodiment of the present invention, as shown in fig. 1 to 4, the patch transformer 10 includes a transformer bobbin 100 and a plurality of pins 200; each pin 200 includes a first connection portion 210, a second connection portion 220, and a third connection portion 230 sequentially arranged along the vertical direction of the transformer bobbin 100, the second connection portion 220 is used for connecting the first connection portion 210 and the third connection portion 230, the third connection portion 230 is connected with the transformer bobbin 100, the third connection portion 230 is close to the bottom of the transformer bobbin 100, and the first connection portion 210 is close to the top of the transformer bobbin 100; the first connection portion 210 is used to overlap the PCB board 20.

The patch type transformer 10 is applied to a PCB 20 having a mounting through slot 21, each of the pins 200 includes a first connection portion 210, a second connection portion 220, and a third connection portion 230 sequentially arranged along a vertical direction of the transformer bobbin 100, the third connection portion 230 is close to the bottom of the transformer bobbin 100, and the first connection portion 210 is close to the top of the transformer bobbin 100; in this way, through the improvement of the pins, when the patch type transformer 10 is mounted on the PCB 20, the transformer bobbin 100 can be sunk into the mounting through groove 21.

The utility model discloses a set pin 200 to the edge first connecting portion 210, second connecting portion 220 and third connecting portion 230 that the vertical direction of transformer skeleton 100 connected gradually, just third connecting portion 230 is close to transformer skeleton 100's bottom, first connecting portion 210 is close to transformer skeleton 100's top, first connecting portion 210 is used for the overlap joint with PCB board 20. So, through setting up the mounting groove on PCB board 20, sink into transformer skeleton 100 in the mounting groove, can utilize PCB board 20's thickness to whole PCBA circuit board 1 final thickness has been reduced, simultaneously, with the technical scheme of first connecting portion 210 overlap joint on PCB board 20, compare in the grafting scheme among the prior art, it need not be to the hole, thereby makes the installation effectiveness higher.

In consideration of the PCBA circuit board, not only transformer components but also diodes, rectifier bridges and other components are installed, and the surface mount transformer can adapt to different application scenes after being installed on the PCBA circuit board. In one embodiment, the third connection part 230 is inclined toward the top of the transformer. In another embodiment, the third connecting portion 230 is flush with the bottom of the transformer bobbin 100. In yet another embodiment, the first connection portion 210 is parallel to the third connection portion 230. In other embodiments, the leads 200 are multi-fold.

In a preferred embodiment, an included angle between the second connecting portion 220 and the third connecting portion 230 is α, which satisfies: alpha is more than or equal to 60 degrees and less than or equal to 120 degrees. Wherein the angle includes, but is not limited to, 60 °, 80 °, 90 °, 110 °, or 120 °.

In one embodiment, the first connecting portion 210 is disposed flat to ensure the contact stability of the pin 200.

The utility model discloses still provide a PCBA circuit board 1, this PCBA circuit board 1 includes PCB board 20 and SMD transformer 10, and the concrete structure of this SMD transformer 10 refers to above-mentioned embodiment, because this PCBA circuit board 1 has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here. Wherein, the PCB board 20 is provided with an installation through slot 21; the transformer bobbin 100 is sunk into the mounting through groove 21, and the first connection portion 210 is overlapped with the PCB 20.

In one embodiment, the bottom surface of the transformer bobbin 100 is flush with the bottom surface of the PCB 20 for easy mounting and improving the mounting stability of the chip-on-board transformer 10.

In one embodiment, the first connecting portion 210 is soldered on the PCB board 20.

The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. The utility model provides a SMD transformer, is applied to the PCB board that has the logical groove of installation, a serial communication port, includes:

the transformer framework sinks into the installation through groove;

the transformer comprises a plurality of pins, wherein each pin comprises a first connecting part, a second connecting part and a third connecting part which are sequentially arranged along the vertical direction of a transformer framework, the second connecting part is used for connecting the first connecting part and the third connecting part, the third connecting part is connected with the transformer framework, the third connecting part is close to the bottom of the transformer framework, and the first connecting part is close to the top of the transformer framework; the first connecting part is used for being lapped with the PCB.

2. The patch transformer of claim 1, wherein the third connection portion is inclined toward a top of the patch transformer.

3. The patch transformer of claim 1, wherein the third connection portion is flush with a bottom of the transformer bobbin.

4. The patch transformer of claim 3, wherein the first connection portion is parallel to the third connection portion.

5. The patch transformer according to claim 4, wherein an included angle α between the second connection portion and the third connection portion satisfies: alpha is more than or equal to 60 degrees and less than or equal to 120 degrees.

6. The patch transformer of claim 1, wherein the pins are in a multifold arrangement.

7. The patch transformer according to claim 1, wherein the first connection portion is flat.

8. A PCBA circuit board, comprising:

the PCB is provided with an installation through groove;

the patch transformer of any one of claims 1-7; the transformer framework sinks into the installation through groove, and the first connecting portion is in lap joint with the PCB.

9. The PCBA circuit board as recited in claim 8, wherein a bottom surface of the transformer bobbin is flush with a bottom surface of the PCB board.

10. A PCBA circuit board as claimed in claim 8, wherein the first connection is soldered to the circuit board.