CN104575970B - A kind of common-mode filter - Google Patents
A kind of common-mode filter Download PDFInfo
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- CN104575970B CN104575970B CN201410735828.1A CN201410735828A CN104575970B CN 104575970 B CN104575970 B CN 104575970B CN 201410735828 A CN201410735828 A CN 201410735828A CN 104575970 B CN104575970 B CN 104575970B
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Abstract
The invention discloses a kind of common-mode filter, including magnetic core, described magnetic core is fixed on base plate, described base plate is plugged on circuit board by pin, described magnetic core is provided with bobbin, described bobbin is provided with winding slot, coiling enamel-covered wire in described winding slot, described bobbin is respectively arranged at two ends with limited block, described magnetic core is provided with the installing hole accommodating bobbin, the inwall of described installing hole is provided with the draw-in groove of clamping limited block, the hole, location of connection draw-in groove it is respectively equipped with on the outer wall of described magnetic core both sides, described location is provided with latch in hole, described limited block is provided with spacing hole, one end of described latch passes profiled holes and stretches in spacing hole, described latch respectively with hole and spacing hole rotary stopper, location, described latch is provided with spring, described spring applies the elastic force towards spacing hole to latch.The present invention dismantles simpler convenience, does not easily cause damage.
Description
Technical field
The present invention relates to a kind of common-mode filter.
Technical background
Common-mode filter is extensively installed on wiring board, high-frequency interferencing signal in filtering circuit, it is typically mainly made up of magnetic core and coil, and magnetic core is connected on wiring board by the base of band stitch, after common-mode filter breaks down, need from wiring board, pull down common-mode filter to overhaul, dismounting not only troublesome poeration the most repeatedly, and easily make stitch lose, cause stitch and wiring board loose contact, the problem that even stitch fractures, brings much inconvenience to maintenance.
Summary of the invention
Present invention solves the technical problem that and provide a kind of common-mode filter, dismantle simpler convenience, do not easily cause damage.
nullFor solving above-mentioned technical problem，The present invention adopts the following technical scheme that a kind of common-mode filter，Including magnetic core，Described magnetic core is fixed on base plate，Described base plate is plugged on circuit board by pin，Described magnetic core is provided with bobbin，Described bobbin is provided with winding slot，Coiling enamel-covered wire in described winding slot，Described bobbin is respectively arranged at two ends with limited block，Described magnetic core is provided with the installing hole accommodating bobbin，The inwall of described installing hole is provided with the draw-in groove of clamping limited block，The hole, location of connection draw-in groove it is respectively equipped with on the outer wall of described magnetic core both sides，Described location is provided with latch in hole，Described limited block is provided with spacing hole，One end of described latch passes profiled holes and stretches in spacing hole，Described latch respectively with hole and spacing hole rotary stopper, location，Described latch is provided with spring，Described spring applies the elastic force towards spacing hole to latch.
Preferably, the groove in hole, connection location it is respectively equipped with on the outer wall of described magnetic core both sides, described spring is arranged in groove, described latch is provided with round button towards one end of magnetic core outer wall, one end of described spring is fixed on round button, the other end of described spring is fixed on groove floor, and described spring is in extended state.
Preferably, described lock bolt body includes that columnar part, the cylinder of described columnar part are provided with at least raised line, and hole, described location and spacing hole include that cylindrical hole, the hole wall of described cylindrical hole are provided with the stopper slot matched with raised line.
Preferably, described bobbin is provided with separation beam, and described separation beam is provided with several through holes.
Beneficial effects of the present invention:
Bobbin carries out the most spacing by limited block with draw-in groove clamping, mounting means is simple and convenient, insert spacing hole by latch again and carry out rotary stopper, so that bobbin is firmly fixed in magnetic core, when common-mode filter breaks down, have only to from spacing hole, pull out latch, bobbin can be taken out from magnetic core, overhaul, remove the most efficient and convenient, when bobbin is installed, latch is pulled out, again limited block is embedded in draw-in groove, owing to the action bolt of spring will spring in stopper slot automatically, install the rapidest, so that common-mode filter is difficult to cause damage under repeatedly plug.
Accompanying drawing explanation
Fig. 1 is the front view of the present invention；
Fig. 2 is the side view of the present invention；
Fig. 3 is the top view of the present invention；
Fig. 4 is the sectional view of latch in the present invention.
Detailed description of the invention
nullAs shown in Figure 1 to Figure 3，One common-mode filter of the present invention includes magnetic core 1，Described magnetic core is fixed on base plate 2，Described base plate is plugged on circuit board by pin 201，Described magnetic core is provided with bobbin 3，Described bobbin is provided with winding slot，Coiling enamel-covered wire 4 in described winding slot，Described bobbin is respectively arranged at two ends with limited block 301，Described magnetic core is provided with the installing hole 101 accommodating bobbin，The inwall of described installing hole is provided with the draw-in groove 102 of clamping limited block，The hole, location 103 of connection draw-in groove it is respectively equipped with on the outer wall of described magnetic core both sides，Described location is provided with latch 5 in hole，Described limited block is provided with spacing hole，One end of described latch passes profiled holes and stretches in spacing hole，Described latch respectively with hole and spacing hole rotary stopper, location，Described latch is provided with spring 6，Described spring applies the elastic force towards spacing hole to latch.The groove 104 in hole 103, connection location it is respectively equipped with on the outer wall of described magnetic core 1 both sides, described spring 6 is arranged in groove, described latch 5 is provided with round button 501 towards one end of magnetic core outer wall, one end of described spring is fixed on round button, the other end of described spring is fixed on groove floor, and described spring is in extended state.Spring is in extended state all the time so that plug wire after being pulled out one unclamp i.e. by elastic force effect from trend magnetic core internal motion, make bobbin install more quick.Described bobbin 3 is provided with separation beam 302, and described separation beam is provided with several through holes 303.The one side that arranges of through hole alleviates the weight of bobbin, is conducive to being installed on the lightweight requirements of PCB, is on the other hand easily installed the crawl to bobbin when dismantling bobbin.
As shown in Figure 4, the shank of described latch 5 includes that columnar part 502, the cylinder of described columnar part are provided with at least raised line 503, and hole, described location 103 and spacing hole include that cylindrical hole, the hole wall of described cylindrical hole are provided with the stopper slot matched with raised line.Raised line coordinates so that latch cannot rotate in hole, location and spacing hole with stopper slot, makes bobbin fixation.
The using method of the present invention is:
When common-mode filter breaks down, have only to from spacing hole, pull out latch, bobbin can be taken out from magnetic core, overhaul, remove the most efficient and convenient, when bobbin is installed, latch is pulled out, then limited block is embedded in draw-in groove, owing to the action bolt of spring will spring in stopper slot automatically, install very rapid, so that common-mode filter is difficult to cause damage under repeatedly plug.
Above preferred embodiment of the present invention is described, but is not to be construed as limitations on claims.The present invention is not only limited to above example, and its concrete structure allows to change, and those skilled in the art can be variously modified according to the present invention and deform, and without departing from the spirit of the present invention, belongs to scope defined in claims of the present invention.
Claims (2)
- null1. a common-mode filter，Including magnetic core (1)，Described magnetic core is fixed on base plate (2)，Described base plate is inserted (201) by pin and is connected on circuit board，Described magnetic core is provided with bobbin (3)，Described bobbin is provided with winding slot，Coiling enamel-covered wire (4) in described winding slot，It is characterized in that: described bobbin is respectively arranged at two ends with limited block (301)，Described magnetic core is provided with the installing hole (101) accommodating bobbin，The inwall of described installing hole is provided with the draw-in groove (102) of clamping limited block，The hole, location (103) of connection draw-in groove it is respectively equipped with on the outer wall of described magnetic core both sides，Hole, described location is provided with latch (5)，Described limited block is provided with spacing hole，One end of described latch passes hole, location and stretches in spacing hole，Described latch respectively with hole and spacing hole rotary stopper, location，Described latch is provided with spring (6)，Described spring applies the elastic force towards spacing hole to latch；The shank of described latch (5) includes columnar part (502), and the cylinder of described columnar part is provided with at least raised line (503), and hole, described location (103) and spacing hole include that cylindrical hole, the hole wall of described cylindrical hole are provided with the stopper slot matched with raised line.
- 2. according to a kind of common-mode filter described in claim 1, it is characterised in that: described bobbin (3) is provided with separation beam (302), and described separation beam is provided with several through holes (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735828.1A CN104575970B (en) | 2014-12-05 | 2014-12-05 | A kind of common-mode filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735828.1A CN104575970B (en) | 2014-12-05 | 2014-12-05 | A kind of common-mode filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104575970A CN104575970A (en) | 2015-04-29 |
| CN104575970B true CN104575970B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410735828.1A Active CN104575970B (en) | 2014-12-05 | 2014-12-05 | A kind of common-mode filter |
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| CN (1) | CN104575970B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113793747B (en) * | 2021-08-26 | 2023-07-18 | 力维兴电子（深圳)有限公司 | Leakage inductance control device and control method of LLC transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3532818A1 (en) * | 1985-09-13 | 1987-03-26 | Siemens Ag | Coil former consisting of insulating material with a potted electrical coil, and a method for its production |
| JP3659207B2 (en) * | 2001-09-28 | 2005-06-15 | 松下電器産業株式会社 | Inductance element |
| CN201430063Y (en) * | 2009-08-01 | 2010-03-24 | 海宁联丰东进电子有限公司 | Switch transformer |
| CN201601001U (en) * | 2010-02-08 | 2010-10-06 | 张祖军 | Transformer |
| CN204303510U (en) * | 2014-12-05 | 2015-04-29 | 海宁联丰东进电子有限公司 | A kind of common-mode filter |
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- 2014-12-05 CN CN201410735828.1A patent/CN104575970B/en active Active
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| CN104575970A (en) | 2015-04-29 |
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