CN209266134U - A kind of common mode choke - Google Patents
A kind of common mode choke Download PDFInfo
- Publication number
- CN209266134U CN209266134U CN201920141551.8U CN201920141551U CN209266134U CN 209266134 U CN209266134 U CN 209266134U CN 201920141551 U CN201920141551 U CN 201920141551U CN 209266134 U CN209266134 U CN 209266134U
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- China
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- framework
- magnetic core
- common mode
- clamping
- mode choke
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Abstract
The utility model relates to a kind of common mode chokes, it includes magnetic core and the coil that is wound on the magnetic core, the coil includes at least two windings, it further include the first framework and second framework, first framework and the mutual pairing splicing of the second framework are to form for the installing frame for magnetic core and coil accommodating, at least provided with one group of clamping portion for connecting and fixing magnetic core in first framework and the second framework, the anti-delinking part being mutually permanently connected for the two is additionally provided between first framework and two framework.The utility model has the advantages that safety and stability.
Description
Technical field
The utility model relates to the technical fields of choke structure, more particularly, to a kind of common mode choke.
Background technique
Common mode choke is one using materials such as ferrites as the common mode interference suppression device of magnetic core, it is by two size phases
Together, the identical coil of the number of turns is symmetrically wound on the same oxysome toroidal core, forms a four-terminal device, be for altogether
Mould signal shows that big inductance is inhibited, and the magnetic flux when flowing through common mode current in choke coil in magnetic core is overlapped mutually,
To have sizable inductance, inhibiting effect is played to common mode current, and when two coils flow through differential-mode current, in magnetic core
Magnetic flux cancel out each other, almost without inductance, so differential-mode current can pass through undampedly.Therefore common mode chokes Quan Ping
Common mode interference signal can be effectively inhibited in weighing apparatus route.
Currently, the Chinese patent that China Patent No. is CN204303521U discloses a kind of New single-phase common mode choke,
First winding and the second winding are in the symmetrical coiling in magnetic core two sides, and partition is located at the middle part of magnetic core, along the first winding and the second winding
Symmetrical center line setting, partition play partition the first winding and the second winding purpose, avoid the first winding and second around
Group generates mutual inductance.In general, common mode choke is directly welded on circuit board for using.But in vibrating biggish use environment,
Vibration is transmitted to common mode choke, collides between common mode choke and circuit board, the easy damage such as magnetic core, coil and partition
It is bad, it is more serious to will lead to insulating layer on magnetic core and be damaged, cause the generation of the safety accidents such as electric leakage.
Utility model content
The purpose of the utility model is to provide a kind of common mode choke, have the advantages that use safety and stability.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of common mode choke, including magnetic core and the coil being wound on the magnetic core, the coil includes at least two
A winding further includes the first framework and second framework, and first framework and the mutual pairing splicing of the second framework are to form
For the installing frame for magnetic core and coil accommodating, being used in first framework and the second framework at least provided with one group will
The clamping portion that magnetic core connects and fixes is additionally provided with for the two company of being fixed to each other between first framework and the second framework
The anti-delinking part connect.
By using above-mentioned technical proposal, magnetic core is mounted in installing frame and is stablized by clamping portion and installed, welding circuit
When, installing frame is fixed on circuit boards, to protect the magnetic core in installing frame not touch with circuit board and other components
Damage is bad, while also reducing the electromagnetic interference on circuit board, protects the common mode choke as a result, makes its installation more
Add and stablizes, using safer.
The utility model is further arranged to: the clamping portion includes the first card being arranged on the first framework inner wall
The the second clamping section for connecing section and being arranged on the second framework inner wall, described first is clamped the second clamping described in Duan Keyu
The splicing of section pairing is to form the clamping space accommodated for magnetic core between the first clamping section and the second clamping section.
By using above-mentioned technical proposal, one end of magnetic core is mounted in clamping space so that magnetic core does not occur with circuit board
Contact avoids between magnetic core and circuit board damaging because of vibration, improves the safety of the common mode choke.
The utility model is further arranged to: the quantity of the clamping portion is provided with two groups, and two groups of clamping portions are symmetrical arranged
On the inner wall of the installing frame.
By using above-mentioned technical proposal, two groups of clamping portions are symmetrical arranged, and further improve the mounting stability of magnetic core.
The utility model is further arranged to: the anti-delinking part include it is chimeric be mounted in magnetic core with for separate two around
The partition of group and it is integrally formed button in the partition two sides, is respectively provided in first framework and the second framework
There is the embedding slot for the chimeric installation of the button, the hook being provided on the button for being connected to first framework edge is held
End.
By using above-mentioned technical proposal, partition separates two windings to prevent occurring mutual inductance, and button it is chimeric be mounted on it is embedding
In tankage, so that common mode choke is installed the smooth no protrusion of rear surface and improve mounting stability with whole.
The utility model is further arranged to: the edge of first framework is provided with and the hook in the embedding slot
It holds end and mutually hooks the hook slot held.
By using above-mentioned technical proposal, hook is held end hook and is held in groove, avoids anti-delinking part from being detached from from installing frame, into one
Step improves the mounting stability of the common mode choke.
The utility model is further arranged to: being provided with confession on the outer wall of the first clamping section and the second clamping section
The sliding slotting card slot of partition.
By using above-mentioned technical proposal, partition is connected in card slot, further strengthens the first framework and second framework
Between fitment stability.
The utility model is further arranged to: the outlet hole stretched out for winding overhang is provided on the installing frame.
By using above-mentioned technical proposal, winding overhang stretches out to weld on circuit boards from outlet hole.
In conclusion the advantageous effects of the utility model are as follows:
1. the setting of installing frame and the setting of partition are further reduced influence of the magnetic disturbance signal to common mode choke；
2. the setting of installing frame also protects magnetic core and winding to damage in use from vibration, improves the common mode and grip
Flow the safety in utilization of circle；
3. the design of anti-delinking part improves the mounting stability of installing frame.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the configuration schematic diagram of the utility model.
In figure, 1, magnetic core；2, winding；3, installing frame；31, the first framework；311, the first clamping section；312, slot is hooked；32,
Two frameworks；321, the second clamping section；33, embedding slot；34, card slot；4, anti-delinking part；41, partition；42, button；43, Gou Chiduan.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Referring to Figures 1 and 2, it is a kind of common mode choke disclosed by the utility model, including magnetic core 1 and is wound on magnetic
Coil on core 1, coil include at least two windings 2, and magnetic core 1 is mounted in installing frame 3.It is provided on installing frame 3 for winding 2
The outlet hole that end is stretched out, the end of winding 2 is pierced by outlet hole to be welded on circuit.When work, two windings 2 flow through differential mode
When electric current, the magnetic flux in magnetic core 1 is cancelled out each other, and to inhibit common mode interference signal, and installing frame 3 is further suppressed positioned at circuit
Interference of the electromagnetic interference signal to magnetic core 1 on plate outside installing frame 3.It is when welding circuit, installing frame 3 is fixed on circuit boards
So that magnetic core 1 is suspended at circuit board, to avoid magnetic core 1 and the coil being wound on magnetic core 1 and circuit board or other zero
Part collides impaired.
Specifically, installing frame 3 includes the first framework 31 and second framework 32, and installing frame 3 is by the first framework 31 and the second frame
The mutual pairing of body 32 is spliced to form with for accommodating magnetic core 1 and coil, in the first framework 31 and second framework 32 at least provided with
One group of clamping portion for connecting and fixing magnetic core 1.Clamping portion includes the first clamping section being arranged on 31 inner wall of the first framework
311 and be arranged on 32 inner wall of second framework second clamping section 321, first clamping section 311 can with second clamping section 321
To form the clamping space accommodated for magnetic core 1 between the first clamping section 311 and the second clamping section 321, magnetic core 1 is pacified for pairing splicing
With fixed with installing frame 3 in clamping space.Preferably, the quantity of clamping portion is provided with two groups, and two groups of clamping portions are symmetrical
It is arranged on the inner wall of installing frame 3.
Further, the anticreep being mutually permanently connected for the two is additionally provided between the first framework 31 and second framework 32
Portion 4.Anti-delinking part 4 include it is chimeric be mounted in magnetic core 1 with for separating two windings 2 partition 41 and integrated molding every
It is provided on the outer wall of the button 42 of 41 two sides of plate, the first clamping section 311 and the second clamping section 321 for the sliding slotting card slot of partition 41
34.Partition 41 is sliding to be inserted in card slot 34 further to separate the first winding 2 and the second winding 2 to inhibit, common mode interference signal.
It is tellable to be, the embedding slot for the chimeric installation of button 42 is provided in the first framework 31 and second framework 32
33, button 42 is chimeric to be mounted on embedding slot 33 so that the surfacing of installing frame 3 is without protrusion.It is provided on button 42 for card
It connects the hook at 31 edge of the first framework and holds end 43, the edge of the first framework 31 is provided in embedding slot 33 holds end 43 phases hook with hook
The hook slot 312 held, the hook of Gou Chiduan 43 are held in hooking slot 312 to lock the first framework 31 and second framework 32.
The implementation principle of the present embodiment are as follows: the magnetic core 1 for being wound with coil is separately mounted to the first card of the first framework 31
In the second clamping section 321 for connecing section 311 and second framework 32, and the first framework 31 is spliced with 32 pairing of second framework, then
The button 42 of anti-delinking part 4, which is fitted into, to be mounted in embedding slot 33 and hook to hold holds 43 hooks to hold on hooking slot 312, finally by winding 2
End is pierced by outlet hole.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (7)
1. a kind of common mode choke, including magnetic core (1) and the coil being wound on the magnetic core (1), the coil includes extremely
Few two windings (2), it is characterised in that: the common mode choke further includes the first framework (31) and second framework (32), and described the
One framework (31) and the second framework (32) mutually pairing splicing are to form for the installing frame for magnetic core (1) and coil accommodating
(3), in first framework (31) and the second framework (32) at least provided with one group for magnetic core (1) to be connected and fixed
Clamping portion is additionally provided between first framework (31) and the second framework (32) and prevents for what the two was mutually permanently connected
De- portion (4).
2. a kind of common mode choke according to claim 1, it is characterised in that: the clamping portion includes setting described the
The second clamping of the first clamping section (311) and setting on the second framework (32) inner wall on one framework (31) inner wall
Section (321), first clamping section (311) can be with the second clamping section (321) pairing splicings in the first clamping section
(311) the clamping space accommodated for magnetic core (1) is formed between second clamping section (321).
3. a kind of common mode choke according to claim 2, it is characterised in that: the quantity of the clamping portion is provided with two
Group, two groups of clamping portions are symmetricly set on the inner wall of the installing frame (3).
4. a kind of common mode choke according to claim 2, it is characterised in that: the anti-delinking part (4) includes chimeric installation
With partition (41) and integrated molding the buckleing in the partition (41) two sides for separating two windings (2) in magnetic core (1)
It is provided in body (42), first framework (31) and the second framework (32) for the embedding of the button (42) chimeric installation
Tankage (33), the hook being provided with for being connected to the first framework (31) edge on the button (42) hold end (43).
5. a kind of common mode choke according to claim 4, it is characterised in that: the edge of first framework (31) is in institute
It states to be provided in embedding slot (33) and holds end (43) with the hook and mutually hook the hook slot (312) held.
6. a kind of common mode choke according to claim 4, it is characterised in that: first clamping is section (311) and described
It is provided on the outer wall of second clamping section (321) for the partition (41) sliding slotting card slot (34).
7. a kind of common mode choke according to claim 1, it is characterised in that: be provided on the installing frame (3) for around
The outlet hole that group (2) end is stretched out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920141551.8U CN209266134U (en) | 2019-01-24 | 2019-01-24 | A kind of common mode choke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920141551.8U CN209266134U (en) | 2019-01-24 | 2019-01-24 | A kind of common mode choke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209266134U true CN209266134U (en) | 2019-08-16 |
Family
ID=67584862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920141551.8U Expired - Fee Related CN209266134U (en) | 2019-01-24 | 2019-01-24 | A kind of common mode choke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209266134U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041996A1 (en) * | 2022-08-24 | 2024-02-29 | Würth Elektronik eiSos Gmbh & Co. KG | Passive electrotechnical component |
-
2019
- 2019-01-24 CN CN201920141551.8U patent/CN209266134U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041996A1 (en) * | 2022-08-24 | 2024-02-29 | Würth Elektronik eiSos Gmbh & Co. KG | Passive electrotechnical component |
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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: 20190816 Termination date: 20200124 |