CN204303510U - A kind of common-mode filter - Google Patents
A kind of common-mode filter Download PDFInfo
- Publication number
- CN204303510U CN204303510U CN201420761079.5U CN201420761079U CN204303510U CN 204303510 U CN204303510 U CN 204303510U CN 201420761079 U CN201420761079 U CN 201420761079U CN 204303510 U CN204303510 U CN 204303510U
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- CN
- China
- Prior art keywords
- magnetic core
- hole
- latch
- bobbin
- groove
- 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 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.The utility model dismounting is more simple and convenient, not easily causes damage.
Description
Technical field
The utility model relates to a kind of common-mode filter.
Background technology
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.
Utility model content
The technical problem that the utility model 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 utility model 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.
The beneficial effects of the utility model:
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 utility model;
Fig. 2 is end view of the present utility model;
Fig. 3 is vertical view of the present utility model;
Fig. 4 is the sectional view of latch in the utility model.
Embodiment
As shown in Figure 1 to Figure 3, a kind of common-mode filter of the utility model 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 utility model 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.
Be described with regard to the utility model preferred embodiment above, but can not be interpreted as it is restriction to claim.The utility model is not only confined to above embodiment, its concrete structure allows to change, those skilled in the art can make various change and distortion according to the utility model, only otherwise depart from spirit of the present utility model, all belong to the scope that the utility model claims 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 |
|---|---|---|---|
| CN201420761079.5U CN204303510U (en) | 2014-12-05 | 2014-12-05 | A kind of common-mode filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420761079.5U CN204303510U (en) | 2014-12-05 | 2014-12-05 | A kind of common-mode filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204303510U true CN204303510U (en) | 2015-04-29 |
Family
ID=53109032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420761079.5U Expired - Fee Related CN204303510U (en) | 2014-12-05 | 2014-12-05 | A kind of common-mode filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204303510U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575970A (en) * | 2014-12-05 | 2015-04-29 | 海宁联丰东进电子有限公司 | Common-mode filter |
| CN112065229A (en) * | 2019-06-11 | 2020-12-11 | 彭志军 | Anti-skidding section bar angle sign indicating number device of locking by expansive force |
-
2014
- 2014-12-05 CN CN201420761079.5U patent/CN204303510U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575970A (en) * | 2014-12-05 | 2015-04-29 | 海宁联丰东进电子有限公司 | Common-mode filter |
| CN112065229A (en) * | 2019-06-11 | 2020-12-11 | 彭志军 | Anti-skidding section bar angle sign indicating number device of locking by expansive force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20181205 |