CN201717084U - Smd transformer - Google Patents
Smd transformer Download PDFInfo
- Publication number
- CN201717084U CN201717084U CN2010201741319U CN201020174131U CN201717084U CN 201717084 U CN201717084 U CN 201717084U CN 2010201741319 U CN2010201741319 U CN 2010201741319U CN 201020174131 U CN201020174131 U CN 201020174131U CN 201717084 U CN201717084 U CN 201717084U
- Authority
- CN
- China
- Prior art keywords
- hole
- pcb board
- pad
- board seat
- transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an SMD transformer which comprises a transformer body and a PCB seat, wherein a plurality of coil windings are arranged in the transformer body, and metal wires are arranged on the coil windings; the PCB seat comprises an upper surface, a lower surface and two side surfaces, and the two side surfaces are both connected with the upper surface and the lower surface; the PCB seat is provided with a plurality of pads; a plurality of positioning through holes which pass through the upper surface and the lower surface are arranged at least one side of the PCB seat, the positioning holes are communicated with the side surfaces and are in one-to-one correspondence with the pads; and the metal wires are welded and connected with the pads. When being welded on the pads, the metal wires can be positioned through the positioning through holes, thus not only being convenient for welding the metal wires on the pads, but also leading to small volume, and enabling the SMD transformer to be welded on the PCB easily.
Description
Technical field
The utility model relates to a kind of transformer, especially relates to a kind of SMD transformer.
Background technology
Along with the fast development of the fast development of electronic product, particularly network and the communication technology, in order to Control Network and mixed-media network modules mixed-media of communicating by letter and also constantly development thereupon of communication module.Described mixed-media network modules mixed-media and communication module are provided with transformer usually, and described transformer mainly will be used to provide impedance matching and isolate unusually.For example, when the design impedance that is connected when the netting twine two ends does not match, just adjust by described transformer so that the netting twine two ends can reach impedance matching; When the voltage at netting twine two ends is inconsistent, when promptly producing abnormal voltage,, thereby prevent that the network equipment or the communication equipment that are connected with netting twine from damaging by the protection of transformer.
Existing transformer generally includes the coil windings that an insulating body, two rows are fixed on the metal pins on the described insulating body and are electrical connected with described metal pins, and described metal pins comprises and is embedded in the connecting portion in the described insulating body and extends to the outer weld part of described insulating body.When described transformer is used on the network equipment or the communication equipment, be welded on the corresponding circuit board by described weld part.Yet described metal pins is not easy coplane, thereby welding the time is not easy to be welded on the circuit board, and described metal pins takies than large space, thereby volume is big.
The utility model content
The utility model is to provide a kind of not only being convenient to that described metal coiling is welded on the described pad at the defective that the above-mentioned background technology exists, and volume is little and be easy to the utility model is welded to SMD transformer on the circuit board.
For achieving the above object, the utility model discloses a kind of SMD transformer, it comprises a transformer body and a pcb board seat, is provided with some coil windings in the described transformer body, and described coil windings is provided with the metal coiling.Described pcb board seat is provided with a upper surface, a lower surface and two sides, and described two sides all link to each other with described upper surface and lower surface, and described PCB is provided with some pads.At least one side of described pcb board seat offers some positioning through hole that run through described upper surface and lower surface, and described positioning through hole is connected with described side and is corresponding one by one with described pad, and described metal coiling is weldingly connected with described pad.
Further, the both sides that described pcb board seat is positioned at described upper surface and lower surface are provided with described pad, and described positioning through hole is an electroplating hole, and the described pad of this electroplating hole and described upper surface and lower surface is electrical connected.
Further, described pcb board seat is provided with some separated times hole of running through described pcb board seat, and described separated time hole is corresponding one by one with described pad and be positioned at a side of described pad one end.
Further, described transformer body is fixed on the upper surface of described pcb board seat by a glue.
Further, described SMD transformer also comprises a loam cake, and described loam cake is provided with a holding tank, and described loam cake covers and is fixed on the described pcb board seat, and described transformer body part is housed in the described holding tank.
Further, described pcb board seat is provided with the some welding that run through described upper surface, lower surface and pad and strengthens via hole, and it is corresponding one by one with described pad locations that via hole is strengthened in described welding.
In sum, the utility model is provided with described pad and described positioning through hole by described pcb board seat, described positioning through hole is connected with described side and is corresponding one by one with described pad, thereby when being welded to described metal coiling on the described pad, can position described metal coiling by described positioning through hole, thereby not only be convenient to the coiling of described metal is welded on the described pad, and volume is little and be easy to the utility model is welded on the circuit board.
Description of drawings
Fig. 1 is the front view of planting embodiment on the utility model;
Fig. 2 is a vertical view of the present utility model shown in Figure 1;
Fig. 3 is the structural representation of pcb board seat of the present utility model shown in Figure 1;
Fig. 4 is the structural representation at another visual angle of pcb board seat of the present utility model shown in Figure 3;
Fig. 5 is the structural representation after the utility model shown in Figure 1 removes lid.
Embodiment
For further understanding feature of the present utility model, technological means and the specific purposes that reached, function, the utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
See also Fig. 1 and Fig. 2, the utility model SMD transformer comprises a pcb board seat 1, a transformer body 2 and a lid 3.Described pcb board seat 1 has a upper surface 11, a lower surface 12, two sides 13 and both ends of the surface 14, and described two sides 13 all link to each other with described upper surface 11 and lower surface 12, and described both ends of the surface 14 all link to each other with described upper surface 11, lower surface 12 and two sides 13.The relative both sides that described pcb board seat 1 is positioned at described upper surface 11 and lower surface 12 are provided with the pad 15 of some equidistant arrangements.
See also Fig. 3 and Fig. 4, described pcb board seat 1 relative both sides all offer some positioning through hole 16, via hole 17 and some separated times hole 18 are strengthened in some welding.In the present embodiment, described positioning through hole 16 is the electroplating hole of cross section semicircular in shape, and described positioning through hole 16 runs through described upper surface 11 and lower surface 12 and is connected with described side 13.Described positioning through hole 16 is corresponding one by one with described pad 15 and be positioned at an end of described pad 15.Described positioning through hole 16 is electrical connected with the described pad 15 of described upper surface 11 and lower surface 12.Described welding is strengthened via hole 17 and is run through described upper surface 11, lower surface 12 and pad 15, and it is corresponding one by one with described pad 15 positions of described upper surface 11 and lower surface 12 that via hole 17 is strengthened in described welding.Described separated time hole 18 and described pad 15 are corresponding and be positioned at a side of described pad 15 1 ends.
See also Fig. 1 and Fig. 5, the transformer module that described transformer body 2 can be a small transformers or is made up of some small transformers, in the present embodiment, described transformer body 2 is the transformer module of being made up of some little transformations.Be provided with some coil windings 21 in the described transformer body 2, described coil windings 21 is provided with metal coiling 211.Described transformer body 2 is fixed on by a glue on the upper surface 11 of described pcb board seat 1, and described metal coiling 211 is strengthened the aperture of via hole 17 and is welded on the pad 15 of described upper surface 11 through described welding.Described lid 3 is made by plastic cement material, and it is provided with a holding tank 31, and described lid 3 covers and is fixed on the described pcb board seat 1, and described transformer body 2 parts are housed in the described holding tank 31.
The utility model can be used as PCMCIA transformer, network transformer or communication transformer, can be applicable on RJ45 connector and the CHOKE product.When using the utility model, the pad 15 that is positioned at described lower surface 12 by described pcb board seat 1 is welded on the corresponding circuit board, thereby can solve that pin in the prior art is difficult for coplane and the problem that is not easy to weld.
Because described pcb board seat 1 relative both sides all offer some described positioning through hole 16 and separated time hole 18, when being welded on described metal coiling 211 on the described pad 15, described separated time hole 18 is inserted on the junction pole (not shown) corresponding with described separated time hole 18, by described positioning through hole 16 and described junction pole described metal coiling 211 is located, thereby can carry out spot welding by spot welding machine, and then can improve welding efficiency.Strengthen via holes 17 because described pcb board seat 1 relative both sides all offer some described welding, thereby taken off can prevent spot welding the time and prevent that described positioning through hole 16 from opening a way.
In sum, the utility model is provided with described pad 15 and described positioning through hole 16 by described pcb board seat 1, described positioning through hole 16 is connected with described side 13 and is corresponding one by one with described pad 15, thereby when being welded to described metal coiling 211 on the described pad 15, can position by 16 pairs of described metal coilings 211 of described positioning through hole, thereby not only be convenient to described metal coiling 211 is welded on the described pad 15, and volume is little and be easy to the utility model is welded on the circuit board.
The above embodiment has only expressed a kind of execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model scope.Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model design; can also make some distortion and improvement; for example, described positioning through hole 16 is arranged to a breach or other shape etc., these all belong to protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with claims.
Claims (6)
1. SMD transformer, it comprises a transformer body (2), be provided with some coil windings (21) in the described transformer body (2), described coil windings (21) is provided with metal coiling (211), it is characterized in that: also comprise a pcb board seat (1), described pcb board seat (1) is provided with a upper surface (11), a lower surface (12) and two sides (13), and described two sides (13) all link to each other with described upper surface (11) and lower surface (12), and described PCB is provided with some pads (15); At least one side of described pcb board seat (1) offers some positioning through hole (16) that run through described upper surface (11) and lower surface (12), described positioning through hole (16) is connected with described side (13) and is corresponding one by one with described pad (15), and described metal coiling (211) is weldingly connected with described pad (15).
2. SMD transformer according to claim 1, it is characterized in that: the both sides that described pcb board seat (1) is positioned at described upper surface (11) and lower surface (12) are provided with described pad (15), described positioning through hole (16) is an electroplating hole, and the described pad (15) of this electroplating hole and described upper surface (11) and lower surface (12) is electrical connected.
3. SMD transformer according to claim 1 and 2 is characterized in that: described pcb board seat (1) is provided with some separated times hole (18) of running through described pcb board seat (1), and described separated time hole (18) is positioned at a side of described pad (15) one ends.
4. SMD transformer according to claim 1 and 2 is characterized in that: described transformer body (2) is fixed on the upper surface (11) of described pcb board seat (1) by a glue.
5. SMD transformer according to claim 1 and 2, it is characterized in that: described SMD transformer also comprises a loam cake (3), described loam cake (3) is provided with a holding tank (31), described loam cake (3) covers and is fixed on the described pcb board seat (1), and described transformer body (2) part is housed in the described holding tank (31).
6. SMD transformer according to claim 1 and 2, it is characterized in that: described pcb board seat (1) is provided with the some welding that run through described upper surface (11), lower surface (12) and pad (15) and strengthens via hole (17), and it is corresponding one by one with described pad (15) position that via hole (17) is strengthened in described welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201741319U CN201717084U (en) | 2010-04-22 | 2010-04-22 | Smd transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201741319U CN201717084U (en) | 2010-04-22 | 2010-04-22 | Smd transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201717084U true CN201717084U (en) | 2011-01-19 |
Family
ID=43463091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201741319U Expired - Fee Related CN201717084U (en) | 2010-04-22 | 2010-04-22 | Smd transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201717084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018068350A1 (en) * | 2016-10-13 | 2018-04-19 | 雅博思（深圳）电子有限公司 | Network transformer |
-
2010
- 2010-04-22 CN CN2010201741319U patent/CN201717084U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018068350A1 (en) * | 2016-10-13 | 2018-04-19 | 雅博思（深圳）电子有限公司 | Network transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20120422 |