CN220895315U - Terminal and transformer - Google Patents
Terminal and transformer Download PDFInfo
- Publication number
- CN220895315U CN220895315U CN202322670132.2U CN202322670132U CN220895315U CN 220895315 U CN220895315 U CN 220895315U CN 202322670132 U CN202322670132 U CN 202322670132U CN 220895315 U CN220895315 U CN 220895315U
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- terminal
- transformer
- circuit board
- terminals
- pattern formed
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- 239000004020 conductor Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 46
- 238000001514 detection method Methods 0.000 abstract description 10
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical group [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004804 winding Methods 0.000 description 3
- 238000005476 soldering Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- Coils Of Transformers For General Uses (AREA)
Abstract
The application discloses a terminal and a transformer, wherein the terminal comprises a first terminal, a connecting part and a second terminal, and the first terminal is connected with the second terminal through the connecting part; the first terminal is connected to the first end of the connecting part and is used for connecting the terminal lead; the second terminal is connected to the second end of the connecting part and is used for electrically connecting the circuit board; the pattern formed by the vertical projection of the first terminal on the circuit board is not overlapped with the pattern formed by the vertical projection of the second terminal on the circuit board. The terminal is connected with the first terminal and the second terminal through the connecting part, so that the structure is firmer and more compact; the first terminal is connected with the terminal lead wire, the circuit board is connected with the second terminal, and patterns formed by vertical projection of the first terminal and the second terminal on the circuit board are not overlapped, so that the second terminal is not shielded when the AOI is detected by 90 degrees, the accuracy of the AOI detection is ensured, the welding firmness of the two terminals is also ensured, and the welding quality is improved.
Description
Technical Field
The application relates to the technical field of electronic devices, in particular to a terminal and a transformer.
Background
Along with the improvement of the production automation level, the precision of the industry on SMT device processing is higher and higher, and the full automation, high reliability and high consistency become the key of product design.
In the existing network transformer, two leads are welded with one terminal, so that welding spots are overlarge, a patch terminal at the bottom end of the network transformer is opposite to the lead terminal in the vertical direction, and the lead welding terminal is overlarge with the lead welding spots, so that the patch terminal is blocked, and the step of automatically optically detecting (Automated Optical Inspection, AOI) 90-degree detection terminals is blocked, namely, the welding effect at the patch terminal cannot be detected when 90-degree AOI detection is carried out due to shielding of the lead welding terminal and the welding spots, so that the welding quality is affected.
Therefore, how to avoid the lead welding terminal and the welding spot from shielding the patch terminal and affecting the welding quality is a problem to be solved urgently.
Disclosure of utility model
In view of the above, the present application provides a terminal and a transformer, which solves the problem that the terminal welding quality of the transformer is affected due to the shielding of the patch terminal by the lead welding terminal and the welding spot.
The terminal provided by the application comprises a first terminal, a connecting part and a second terminal, wherein the first terminal is connected with the second terminal through the connecting part;
The first terminal is connected to the first end of the connecting part and is used for connecting a terminal lead;
The second terminal is connected to the second end of the connecting part and is used for electrically connecting the circuit board;
The pattern formed by the vertical projection of the first terminal on the circuit board is not overlapped with the pattern formed by the vertical projection of the second terminal on the circuit board.
Optionally, the first terminal includes a first wire bonding terminal and a second wire bonding terminal disposed in parallel, the first wire bonding terminal and the second wire bonding terminal are connected through a conductive portion, and a bottom end of the conductive portion is connected to a top end of the connection portion.
Optionally, a pattern formed by a vertical projection of the first wire bonding terminal on the circuit board does not overlap with a pattern formed by a vertical projection of the second terminal on the circuit board.
Optionally, the pattern formed by the vertical projection of the second wire bonding terminal on the circuit board does not overlap with the pattern formed by the vertical projection of the second terminal on the circuit board.
Optionally, the connection portion is made of a conductive material, and the first terminal is electrically connected to the second terminal through the connection portion.
Optionally, the first and second wire bonding terminals are each provided with a wire groove for accommodating the terminal wire.
The application also provides a transformer, which comprises a transformer shell and a plurality of terminals, wherein the terminals are embedded in the transformer shell.
Optionally, a protruding portion is provided at the bottom of the transformer housing, and a plurality of terminals are all provided at the protruding portion.
Optionally, the protruding portion is provided with a plurality of caulking grooves, the connecting portion is inserted and is located the caulking groove, first terminal follow the top of caulking groove stretches out the side of transformer casing, the second terminal follow the bottom of caulking groove stretches out the bottom surface of transformer casing.
Optionally, the transformer further comprises a plurality of terminal leads from the side of the transformer housing, each of the terminal leads being connected to one of the first terminals.
The terminal and the transformer have the beneficial effects that:
The terminal is connected with the first terminal and the second terminal through the connecting part, so that the structure is firmer and more compact; the first terminal is connected with the terminal lead wire, the circuit board is connected with the second terminal, and patterns formed by vertical projection of the first terminal and the second terminal on the circuit board are not overlapped, so that the second terminal is not shielded when the AOI is detected by 90 degrees, the accuracy of the AOI detection is ensured, the welding firmness of the two terminals is also ensured, and the welding quality is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a terminal structure in a first implementation of an embodiment of the present application;
Fig. 2 is a schematic front view of a terminal according to a first embodiment of the present application;
fig. 3 is a schematic view of a terminal structure in a second implementation of the embodiment of the present application;
Fig. 4 is a schematic front view of a terminal according to a second embodiment of the present application;
FIG. 5 is a schematic diagram of a transformer according to an embodiment of the present application;
fig. 6 is a schematic top view of a transformer according to an embodiment of the present application.
Reference numerals:
1. A first terminal; 11. a first lead bonding terminal; 12. a second lead bonding terminal; 13. a conductive portion;
2. a second terminal;
3. A connection part;
4. a transformer housing; 41. a boss; 42. and (5) terminal leads.
Detailed Description
The following description of the embodiments of the present application will be made in detail and with reference to the accompanying drawings, wherein it is apparent that the embodiments described are only some, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application. The various embodiments described below and their technical features can be combined with each other without conflict.
The present utility model will be more fully understood by the following description of embodiments, but the specific embodiments given by the applicant should not be or should not be construed as limiting the technical solution of the present utility model, any definition of components or technical features.
Referring to fig. 1 and 2, the terminal provided by the present application includes a first terminal 1, a connection part 3, and a second terminal 2, the first terminal 1 being connected to the second terminal 2 through the connection part 3;
The first terminal 1 is connected to a first end of the connecting portion 3 for connecting a terminal lead;
The second terminal 2 is connected to the second end of the connecting part 3 and is used for electrically connecting the circuit board;
The pattern formed by the vertical projection of the first terminal 1 on the wiring board does not overlap with the pattern formed by the vertical projection of the second terminal 2 on the wiring board.
In some embodiments, the first terminal 1 may be a wire bonded terminal that is wire bonded to the terminal; the second terminals 2 may be referred to as patch terminals, which are soldered to pads on a wiring board.
In the first embodiment of the present application, referring to fig. 1 and 2, the first terminal 1 is one terminal.
In the second embodiment of the present application, referring to fig. 3 and 4, the first terminal 1 includes a first wire bonding terminal 11 and a second wire bonding terminal 12 arranged in parallel, the first wire bonding terminal 11 and the second wire bonding terminal 12 are connected by a conductive portion 13, and a bottom end of the conductive portion 13 is connected to a top end of the connecting portion 3.
In other embodiments, the first terminal 1 includes a plurality of wire bonding terminals arranged in parallel, where the plurality may be more than two as desired; the lead welding terminals are all connected through the conductive part 13, and the bottom of the conductive part 13 is connected with the top of the connecting part 3. The perpendicular projection pattern of the plurality of lead welding terminals on the circuit board is not overlapped with the perpendicular projection pattern of the second terminal 2 on the circuit board.
As an alternative embodiment of the present application, referring to fig. 3 and 4, the pattern formed by the perpendicular projection of the first wire bonding terminal 11 on the wiring board does not overlap with the pattern formed by the perpendicular projection of the second terminal 2 on the wiring board.
As an alternative embodiment of the present application, referring to fig. 3 and 4, the pattern formed by the perpendicular projection of the second wire bonding terminal 12 on the wiring board does not overlap with the pattern formed by the perpendicular projection of the second terminal 2 on the wiring board.
The above-mentioned vertical projection means projection in a direction perpendicular to the top surface of the circuit board.
In the prior art, a plurality of terminal leads are wound on one lead welding terminal, after the terminal leads are welded with the lead welding terminal, welding spots are overlarge, the lower patch terminal is easy to shield, and when the AOI detection is carried out at 90 degrees, the welding conditions of the patch terminal below the terminal cannot be detected due to shielding by the welding spots and the lead welding terminal, so that the welding quality is affected;
The first terminal 1 comprises the first lead welding terminal 11 and the second lead welding terminal 12, the first lead welding terminal 11 and the second lead welding terminal 12 can be wound and connected with one terminal lead, the winding volume is reduced, the oversized welding spot after welding is avoided, patterns formed by vertical projection of the first lead welding terminal 11, the second lead welding terminal 12 and the second terminal 2 on a circuit board are not overlapped, namely, vertical projection patterns of the first lead welding terminal 11, the second lead welding terminal 12 and the second terminal 2 on the circuit board are staggered, so that the two lead welding terminals can not shade the second terminal 2 during AOI detection, the welding condition of the second terminal 2 can be completely detected during AOI detection of 90 degrees, the AOI detection accuracy is improved, and the terminal welding quality is ensured.
In some embodiments, referring to fig. 3 and 4, the connection part 3 is made of a conductive material, and the first terminal 1 is electrically connected to the second terminal 2 through the connection part 3. After the soldering of the second terminal 2 to the wiring board is completed, the transformer is electrically connected to the wiring board through the terminal lead, the first terminal 1, the connection portion 3 and the second terminal 2.
As an alternative embodiment of the present application, referring to fig. 1 and 3, a winding groove 10 accommodating a terminal lead is provided on each of the first terminal 1, the first wire bonding terminal 11, and the second wire bonding terminal 12. The welding device has the advantages that the terminal lead is wound in the winding groove 10, the welded volumes of the terminal lead and the first lead welding terminal 11 and the welded volumes of the terminal lead and the second lead welding terminal 12 are further reduced, so that the defect that the welding spot of the first terminal 1 is too large to influence the 90-degree AOI detection accuracy is avoided, and the terminal welding quality is ensured.
The application also provides a transformer, referring to fig. 5 and 6, the transformer comprises a transformer shell 4 and a plurality of terminals, and the terminals are embedded in the transformer shell 4.
In some embodiments, the transformer of the present application comprises a network transformer.
As an alternative embodiment of the present application, referring to fig. 5 and 6, the bottom of the transformer housing 4 is provided with a boss 41, and several terminals are provided to the boss 41.
As an alternative embodiment of the present application, referring to fig. 5 and 6, the protruding portion 41 is provided with a plurality of caulking grooves, the connection portion 3 is inserted into the caulking grooves (not shown in the drawings), the first terminal 1 protrudes from the top end of the caulking groove to the side of the transformer housing 4, and the second terminal 2 protrudes from the bottom end of the caulking groove to the bottom surface of the transformer housing 4.
As an alternative embodiment of the application, referring to fig. 5, the transformer further comprises a plurality of terminal leads 42 from the side of the transformer housing 4, each terminal lead 42 being connected to a first terminal 1.
In some embodiments, the first terminal 1 may be a wire bond terminal for bonding with the terminal wire 42; the second terminals 2 may be referred to as patch terminals for soldering with pads on a circuit board.
In summary, the terminal and the transformer of the application have the advantages that:
The first terminal and the second terminal are connected through the connecting part, so that the structure is firmer and more compact; the first terminal is connected with the terminal lead wire, the circuit board is connected with the second terminal, and patterns formed by vertical projection of the first terminal and the second terminal on the circuit board are not overlapped, so that the second terminal is not shielded when the AOI is detected by 90 degrees, the accuracy of the AOI detection is ensured, the welding firmness of the two terminals is also ensured, and the welding quality is improved.
The foregoing embodiments of the present application are not intended to limit the scope of the application, and all equivalent structures or equivalent processes using the descriptions of the present application and the accompanying drawings, such as the combination of technical features of the embodiments, or direct or indirect application in other related technical fields, are included in the scope of the present application.
Claims (10)
1. A terminal, characterized by comprising a first terminal, a connecting portion and a second terminal, wherein the first terminal is connected with the second terminal through the connecting portion;
The first terminal is connected to the first end of the connecting part and is used for connecting a terminal lead;
The second terminal is connected to the second end of the connecting part and is used for electrically connecting the circuit board;
The pattern formed by the vertical projection of the first terminal on the circuit board is not overlapped with the pattern formed by the vertical projection of the second terminal on the circuit board.
2. The terminal of claim 1, wherein the first terminal comprises a first wire bonding terminal and a second wire bonding terminal arranged in parallel, the first wire bonding terminal and the second wire bonding terminal being connected by a conductive portion, a bottom end of the conductive portion being connected to a top end of the connecting portion.
3. The terminal of claim 2, wherein a pattern formed by a perpendicular projection of the first wire bond terminal onto the wiring board does not overlap a pattern formed by a perpendicular projection of the second terminal onto the wiring board.
4. The terminal of claim 3, wherein a pattern formed by a perpendicular projection of the second wire bond terminal onto the wiring board does not overlap with a pattern formed by a perpendicular projection of the second terminal onto the wiring board.
5. The terminal of claim 1, wherein the connection portion is made of a conductive material, and the first terminal is electrically connected to the second terminal through the connection portion.
6. The terminal of claim 2, wherein the first and second wire bond terminals are each provided with a wire slot thereon for receiving the terminal wire.
7. A transformer comprising a transformer housing and a plurality of terminals according to any one of claims 1-6, a plurality of said terminals being embedded in said transformer housing.
8. The transformer of claim 7, wherein the bottom of the transformer housing is provided with a boss, and a plurality of the terminals are disposed on the boss.
9. The transformer of claim 8, wherein the protruding portion is provided with a plurality of caulking grooves, the connecting portion is inserted into the caulking grooves, the first terminal protrudes from the top end of the caulking grooves to the side surface of the transformer housing, and the second terminal protrudes from the bottom end of the caulking grooves to the bottom surface of the transformer housing.
10. The transformer of claim 7 or 9, further comprising terminal leads from sides of the transformer housing, each terminal lead being connected to one of the first terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322670132.2U CN220895315U (en) | 2023-09-27 | 2023-09-27 | Terminal and transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322670132.2U CN220895315U (en) | 2023-09-27 | 2023-09-27 | Terminal and transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220895315U true CN220895315U (en) | 2024-05-03 |
Family
ID=90870946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322670132.2U Active CN220895315U (en) | 2023-09-27 | 2023-09-27 | Terminal and transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220895315U (en) |
-
2023
- 2023-09-27 CN CN202322670132.2U patent/CN220895315U/en active Active
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