CN206075986U - A kind of high-precision four feet electronic filter - Google Patents
A kind of high-precision four feet electronic filter Download PDFInfo
- Publication number
- CN206075986U CN206075986U CN201621034866.5U CN201621034866U CN206075986U CN 206075986 U CN206075986 U CN 206075986U CN 201621034866 U CN201621034866 U CN 201621034866U CN 206075986 U CN206075986 U CN 206075986U
- Authority
- CN
- China
- Prior art keywords
- circular magnetic
- magnetic core
- wire loop
- enameled wire
- pin
- 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 high-precision four feet electronic filter, including four circular magnetic cores, and the enameled wire loop being wrapped on circular magnetic core and the inductance pin for being arranged on circular magnetic core lower end, described four circular magnetic cores are divided into two groups, the inductance pin that the end of a thread for the enameled wire loop is located on circular magnetic core with which is connected, on described same group circular magnetic core, another the end of a thread of enameled wire loop is connected two-by-two constitutes line tail, is provided with white epoxy glue between described four circular magnetic cores.This utility model can be controlled in inductance accuracy of measurement in positive and negative 20% margin of tolerance, reduce inductance error.
Description
Technical field
This utility model is related to a kind of high-precision four feet electronic filter.
Background technology
Four foot wave filter are a kind of more common electronic devices and components.At present, four traditional foot wave filter are with plastic cement skeleton, magnetic
Core, copper cash, clamp composition, its technological process of production are generally：Coiling, presser feet, scolding tin, assembling, inductance measurement.Traditional four feet filter
Ripple device controls its inductance value mainly by the minute surface contact of magnetic core and affects error very big, causes inductance accuracy of measurement uncontrollable just
In the 20% of negative common difference.
The content of the invention
Technical problem to be solved in the utility model is the defect for overcoming prior art, there is provided a kind of high-precision four foot
Electronic filter, it can be controlled in inductance accuracy of measurement in positive and negative 20% margin of tolerance, reduce inductance error.
This utility model solves above-mentioned technical problem and adopts the technical scheme that：A kind of high-precision four feet electronic filtering
Device, including four circular magnetic cores, and the enameled wire loop being wrapped on circular magnetic core and the inductance for being arranged on circular magnetic core lower end
Pin, described four circular magnetic cores are divided into two groups, the inductance on circular magnetic core that a end of a thread and its are located of the enameled wire loop
Pin is connected, and on described same group circular magnetic core, another the end of a thread of enameled wire loop is connected two-by-two constitutes line tail, four circles
White epoxy glue is provided between shape magnetic core.
Preferably, the circular magnetic core includes the stem stem of pendulum and the bottom in pendulum, the bottom and connection, the enamel-covered wire
Circle is wrapped on stem stem, and the bottom of the bottom is provided with two magnetic core holes, and the inductance pin is disposed therein a magnetic core
Kong Shang.
Preferably, the inductance pin is the tin plating metallic pin of appearance, the metallic pin is by connecing pin epoxy
Glue is fixed in magnetic core hole, and the end of a thread for the enameled wire loop is connected with metallic pin, and the metallic pin connects enamel-cover
The position of coil the end of a thread scribbles epoxy glue.
Preferably, being enclosed with heat-shrinkable T bush on the outside of the upper pendulum, the bottom and enameled wire loop.
Preferably, the circular magnetic core of two of described same group draws glue to fix by agate.
After employing above-mentioned technical proposal, this utility model has following beneficial effect：This utility model is in four circles
Fixed using white epoxy glue in the middle of shape magnetic core, so that it is guaranteed that the stability of inductance value, improves the precision of wave filter, make inductance value
Precision is can be controlled in positive and negative 20% margin of tolerance.
Description of the drawings
Fig. 1 is a kind of structure chart of high-precision four feet electronic filter of the present utility model；
Fig. 2 is a kind of upward view of high-precision four feet electronic filter of the present utility model；
Fig. 3 is after a kind of high-precision four feet electronic filter of the present utility model installs enameled wire loop and metallic pin
The structure chart of circular magnetic core；
Fig. 4 is a kind of structure chart of the circular magnetic core of high-precision four feet electronic filter of the present utility model；
Fig. 5 is a kind of upward view of the circular magnetic core of high-precision four feet electronic filter of the present utility model；
In figure：1. circular magnetic core, 2. enameled wire loop, 3. inductance pin, 4. line tail, 5. white epoxy glue, 6. on put, 7. under
Put, 8. stem stem, 9. magnetic core hole, 10. metallic pin, 11. connect pin epoxy glue, 12. epoxy glue, 13. heat-shrinkable T bush.
Specific embodiment
In order that content of the present utility model is easier to be clearly understood, below according to specific embodiment and with reference to attached
Figure, is described in further detail to this utility model.
As Figure 1-5, a kind of high-precision four feet electronic filter, including four circular magnetic cores 1, and it is wrapped in circle
Enameled wire loop 2 on shape magnetic core 1 and the inductance pin 3 for being arranged on 1 lower end of circular magnetic core, 1 point of four circles magnetic core is two
Group, the inductance pin 3 that the end of a thread for the enameled wire loop 2 is located on circular magnetic core 1 with which are connected, described same group circular magnetic
On core 1, another the end of a thread of enameled wire loop 2 is connected two-by-two constitutes line tail 4, is provided with white ring between described four circular magnetic cores 1
Oxygen glue 5.
The circular magnetic core 1 includes the stem stem 8 for putting pendulum 6 and the bottom 7 in the 6, bottom 7 and connection, the enameled wire loop 2
It is wrapped on stem stem 8, the bottom of lower 7 pendulum is provided with two magnetic core holes 9, and the inductance pin 3 is disposed therein a magnetic
In core bore 9.
The inductance pin 3 is the tin plating metallic pin 10 of appearance, and the metallic pin 10 is by connecing pin epoxy glue
11 are fixed in magnetic core hole 9, and the end of a thread for the enameled wire loop 2 is connected with metallic pin 10, and the metallic pin 10 connects
The position of 2 the end of a thread of enameled wire loop scribbles epoxy glue 12, using epoxy glue 12 by metallic pin 10 and the end of a thread of enameled wire loop 2
It is fixed.
The outside of the upper pendulum 6, bottom 7 and enameled wire loop 2 is enclosed with heat-shrinkable T bush 13.
The circular magnetic core 1 of two of described same group draws glue to fix by agate.
The one of magnetic core hole 9 in bottom bottom of circular magnetic core 1 uses and connects 11 bonded metal guide pin 10 of pin epoxy glue
As inductance the end of a thread fixed position, one of the end of a thread of the enameled wire loop 2 of coiling on stem stem 8 is connected to into metallic pin 10
On, then drawn glue to be tightened as one group and by its enameled wire loop 2 around the 1 semi-finished product agate of circular magnetic core for making coil by two
Another the end of a thread wring and cut off unnecessary line tail and carry out wicking process, and 10 wicking process of metallic pin formation inductance is drawn
Foot 3, and on the location point of connection 2 the end of a thread of enameled wire loop, epoxy glue 12 is fixed, so as to one of shaping filter
Winding, same method make another winding, then connect two windings, i.e., white on point between four circular magnetic cores 1
Color epoxy glue 5 is fixed, so that it is guaranteed that the stability of inductance value, reduces the error of inductance value, finally the upper pendulum 6, bottom 7 with
And heat-shrinkable T bush 13 on the outer sheath of enameled wire loop 2, carry out shrinking sizing through heating.
Compared with prior art, this utility model is fixed using white epoxy glue in the middle of four circular magnetic cores, so as to true
The stability of inductance value is protected, the precision of wave filter is improved, inductance accuracy of measurement is can be controlled in positive and negative 20% margin of tolerance.
Particular embodiments described above, the technical problem solved to this utility model, technical scheme and beneficial effect are entered
Go further description, it is be should be understood that to the foregoing is only specific embodiment of the utility model, and without
It is in this utility model is limited, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvements done
Deng should be included within protection domain of the present utility model.
Claims (5)
1. a kind of high-precision four feet electronic filter, it is characterised in that：Including four circular magnetic cores, and it is wrapped in circular magnetic
Enameled wire loop on core and the inductance pin for being arranged on circular magnetic core lower end, described four circular magnetic cores are divided into two groups, the paint
The inductance pin that the end of a thread for envelope curve circle is located on circular magnetic core with which is connected, enameled wire loop on described same group circular magnetic core
Another the end of a thread be connected two-by-two and constitute line tail, be provided with white epoxy glue between four circular magnetic cores.
2. the high-precision four feet electronic filter of one kind according to claim 1, it is characterised in that：The circular magnetic core bag
The stem stem of pendulum and the bottom in pendulum, the bottom and connection is included, the enameled wire loop is wrapped on stem stem, and the bottom of the bottom sets
Two magnetic core holes are equipped with, the inductance pin is disposed therein on a magnetic core hole.
3. the high-precision four feet electronic filter of one kind according to claim 2, it is characterised in that：The inductance pin is
The tin plating metallic pin of appearance, the metallic pin by connecing the hydropexis of pin epoxy glue in magnetic core hole, the enameled wire loop
A end of a thread be connected with metallic pin, the position of metallic pin connection enameled wire loop the end of a thread scribbles epoxy glue.
4. the high-precision four feet electronic filter of one kind according to claim 2, it is characterised in that：The upper pendulum, the bottom
With heat-shrinkable T bush is enclosed with the outside of enameled wire loop.
5. the high-precision four feet electronic filter of one kind according to claim 1, it is characterised in that：The two of described same group
Individual circular magnetic core draws glue to fix by agate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621034866.5U CN206075986U (en) | 2016-08-31 | 2016-08-31 | A kind of high-precision four feet electronic filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621034866.5U CN206075986U (en) | 2016-08-31 | 2016-08-31 | A kind of high-precision four feet electronic filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206075986U true CN206075986U (en) | 2017-04-05 |
Family
ID=58436796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621034866.5U Expired - Fee Related CN206075986U (en) | 2016-08-31 | 2016-08-31 | A kind of high-precision four feet electronic filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206075986U (en) |
-
2016
- 2016-08-31 CN CN201621034866.5U patent/CN206075986U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170405 Termination date: 20210831 |