CN104575970A - Common-mode filter - Google Patents
Common-mode filter Download PDFInfo
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- CN104575970A CN104575970A CN201410735828.1A CN201410735828A CN104575970A CN 104575970 A CN104575970 A CN 104575970A CN 201410735828 A CN201410735828 A CN 201410735828A CN 104575970 A CN104575970 A CN 104575970A
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- hole
- magnetic core
- latch
- common
- mode filter
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Abstract
The invention discloses a common-mode filter. The common-mode filter comprises a magnetic core, wherein the magnetic core is fixed on a soleplate, the soleplate is connected to a circuit board in a plugging manner through a plug pin, a winding skeleton is arranged in the magnetic core, the winding skeleton is provided with a winding trough, an enameled wire is wound in the winding trough, two ends of the winding skeleton are respectively provided with a limiting block, an installation hole for containing the winding skeleton is formed in the magnetic core, a clamping groove for clamping the limiting block is arranged on the inner wall of the installation hole, a positioning hole which is communicated with the clamping groove is formed in outer walls of two sides of the magnetic core, a plug pin is arranged in each positioning hole, a limiting hole is formed in the limiting block, one end of the plug pin stretches out of a specially-shaped hole to enter the limiting hole, the plug pin is limited to the positioning hole and the limiting hole in a rotating manner, the plug pin is provided with a spring, and the spring applies an elastic force facing the limiting hole to the plug pin. The common-mode filter is simpler and more convenient to disassemble and unlikely to 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, for the high-frequency interferencing signal in filtering circuit, it is generally primarily of magnetic core and coil composition, and magnetic core is connected on wiring board, after common-mode filter breaks down by being with the base of stitch, need common-mode filter to pull down from wiring board to overhaul, frequent dismounting not only troublesome poeration repeatedly, and easily make stitch lose, cause stitch and wiring board loose contact, even the problem that fractures of stitch, brings much inconvenience to maintenance.
Summary of the invention
The technical problem that the present invention solves provides a kind of common-mode filter, dismantles more simple and convenient, not easily causes damage.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of common-mode filter, comprise magnetic core, described magnetic core is fixed on base plate, described base plate is plugged on circuit board by pin, bobbin is provided with in described magnetic core, described bobbin is provided with winding slot, coiling enamelled wire in described winding slot, described bobbin two ends are respectively equipped with guide vane end stop, the installing hole holding bobbin is provided with in described magnetic core, the inwall of described installing hole is provided with the draw-in groove of clamping guide vane end stop, the outer wall of described magnetic core both sides is respectively equipped with the location hole being communicated with draw-in groove, latch is provided with in described location hole, described guide vane end stop is provided with spacing hole, one end of described latch passes profiled holes and stretches in spacing hole, described latch respectively with location hole and spacing hole rotary stopper, described latch is provided with spring, described spring applies towards the elastic force of spacing hole to latch.
Preferably, the outer wall of described magnetic core both sides is respectively equipped with the groove being communicated with location hole, 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 comprises columnar part, and the cylinder of described columnar part is provided with at least one raised line, and described location hole and spacing hole comprise cylindrical hole, and the hole wall of described cylindrical hole is 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 effect of the present invention:
Bobbin is undertaken tentatively spacing by guide vane end stop and draw-in groove clamping, mounting means is simple and convenient, insert spacing hole by latch again and carry out rotary stopper, thus bobbin is firmly fixed in magnetic core, when common-mode filter breaks down, latch is only needed to pull out from spacing hole, bobbin can be taken out from magnetic core, overhaul, remove very efficient and convenient, when bobbin is installed, latch is pulled out, again guide vane end stop is embedded in draw-in groove, because the action bolt of spring will spring in stopper slot automatically, install very rapid, thus make common-mode filter not easily under repeatedly plugging, cause damage.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
Fig. 2 is end view of the present invention;
Fig. 3 is vertical view of the present invention;
Fig. 4 is the sectional view of latch in the present invention.
Embodiment
As shown in Figure 1 to Figure 3, a kind of common-mode filter of the present invention comprises magnetic core 1, described magnetic core is fixed on base plate 2, described base plate is plugged on circuit board by pin 201, bobbin 3 is provided with in described magnetic core, described bobbin is provided with winding slot, coiling enamelled wire 4 in described winding slot, described bobbin two ends are respectively equipped with guide vane end stop 301, the installing hole 101 holding bobbin is provided with in described magnetic core, the inwall of described installing hole is provided with the draw-in groove 102 of clamping guide vane end stop, the outer wall of described magnetic core both sides is respectively equipped with the location hole 103 being communicated with draw-in groove, latch 5 is provided with in described location hole, described guide vane end stop is provided with spacing hole, one end of described latch passes profiled holes and stretches in spacing hole, described latch respectively with location hole and spacing hole rotary stopper, described latch is provided with spring 6, described spring applies towards the elastic force of spacing hole to latch.The outer wall of described magnetic core 1 both sides is respectively equipped with the groove 104 being communicated with location hole 103, 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, make plug wire after being pulled out one unclamp namely by elastic force effect from trend magnetic core internal motion, make bobbin install more quick.Described bobbin 3 is provided with separates beam 302, and described separation beam is provided with several through holes 303.Through hole the weight alleviating on the one hand bobbin is set, be conducive to the lightweight requirements being installed on PCB, the crawl to bobbin when being convenient to installing/dismounting bobbin on the other hand.
As shown in Figure 4, the shank of described latch 5 comprises columnar part 502, and the cylinder of described columnar part is provided with at least one raised line 503, and described location hole 103 and spacing hole comprise cylindrical hole, and the hole wall of described cylindrical hole is provided with the stopper slot matched with raised line.Raised line makes latch cannot rotate in location hole and spacing hole with coordinating of stopper slot, makes bobbin fixation.
Using method of the present invention is:
When common-mode filter breaks down, latch is only needed to pull out from spacing hole, bobbin can be taken out from magnetic core, overhaul, remove very efficient and convenient, when bobbin is installed, latch is pulled out, then guide vane end stop is embedded in draw-in groove, because the action bolt of spring will spring in stopper slot automatically, install very rapid, thus make common-mode filter not easily under repeatedly plugging, cause damage.
Just preferred embodiment of the present invention is described above, but can not be interpreted as it is limitations on claims.The present invention is not only confined to above embodiment, and its concrete structure allows to change, and those skilled in the art can make various change and distortion according to the present invention, only otherwise depart from spirit of the present invention, all belongs to the scope that claims of the present invention define.
Claims (4)
1. a common-mode filter, comprise magnetic core (1), described magnetic core is fixed on base plate (2), described base plate is plugged on circuit board by pin (201), bobbin (3) is provided with in described magnetic core, described bobbin is provided with winding slot, coiling enamelled wire (4) in described winding slot, it is characterized in that: described bobbin two ends are respectively equipped with guide vane end stop (301), the installing hole (101) holding bobbin is provided with in described magnetic core, the inwall of described installing hole is provided with the draw-in groove (102) of clamping guide vane end stop, the outer wall of described magnetic core both sides is respectively equipped with the location hole (103) being communicated with draw-in groove, latch (5) is provided with in described location hole, described guide vane end stop is provided with spacing hole, one end of described latch passes profiled holes and stretches in spacing hole, described latch respectively with location hole and spacing hole rotary stopper, described latch is provided with spring (6), described spring applies towards the elastic force of spacing hole to latch.
2. a kind of common-mode filter according to claim 1, it is characterized in that: the outer wall of described magnetic core (1) both sides is respectively equipped with the groove (104) being communicated with location hole (103), 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.
3. a kind of common-mode filter according to claim 2, it is characterized in that: the shank of described latch (5) comprises columnar part (502), the cylinder of described columnar part is provided with at least one raised line (503), described location hole (103) and spacing hole comprise cylindrical hole, and the hole wall of described cylindrical hole is provided with the stopper slot matched with raised line.
4. a kind of common-mode filter according to claim 3, is characterized in that: described bobbin (3) is provided with separates 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 true CN104575970A (en) | 2015-04-29 |
| CN104575970B CN104575970B (en) | 2016-08-17 |
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Family Applications (1)
| 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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| Country | Link |
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| CN (1) | CN104575970B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113793747A (en) * | 2021-08-26 | 2021-12-14 | 力维兴电子（深圳)有限公司 | Leakage inductance control device and control method of LLC transformer |
Citations (5)
| 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 |
| WO2003030191A1 (en) * | 2001-09-28 | 2003-04-10 | Matsushita Electric Industrial Co., Ltd. | Inductance device |
| 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 |
-
2014
- 2014-12-05 CN CN201410735828.1A patent/CN104575970B/en active Active
Patent Citations (5)
| 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 |
| WO2003030191A1 (en) * | 2001-09-28 | 2003-04-10 | Matsushita Electric Industrial Co., Ltd. | Inductance device |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113793747A (en) * | 2021-08-26 | 2021-12-14 | 力维兴电子（深圳)有限公司 | Leakage inductance control device and control method of LLC transformer |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104575970B (en) | 2016-08-17 |
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