CN207038274U - Circuit board noninductive coil - Google Patents
Circuit board noninductive coil Download PDFInfo
- Publication number
- CN207038274U CN207038274U CN201720653014.2U CN201720653014U CN207038274U CN 207038274 U CN207038274 U CN 207038274U CN 201720653014 U CN201720653014 U CN 201720653014U CN 207038274 U CN207038274 U CN 207038274U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- noninductive coil
- sheet metal
- noninductive
- coil
- 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 circuit board noninductive coil, including insulating circuit board, noninductive coil and sheet metal, noninductive coil and sheet metal, which are spaced apart, to be attached on the same surface of insulating circuit board, if sheet metal has dry plate, is evenly arranged in the surrounding of noninductive coil.Because insulating circuit board is provided with the sheet metal around noninductive coil, sheet metal can improve reception external magnetic field, and noninductive coil is located among sheet metal, preferably can applied on audio frequency apparatus, eliminate interference, obtain the audio-video signal of higher quality.
Description
Technical field
It the utility model is related to a kind of sound picture quality improving apparatus, and in particular to a kind of circuit board noninductive coil.
Background technology
With the development of society, receiving sensitivity and letter of the people to electrical transmission signal particularly microwave signal in electrical equipment
Number transmission speed propose the high requirement of comparison, for example the transmission that TV signal, the audio signal of radio all occur is slow
Or situation of distorted signals etc..To find out its cause, a major reason of distorted signals is in the transmission of electronic circuit, especially
It is in the signal transmission of microwave section, has substantial amounts of inductance, so as to cause the loss of useful signal in the transmission.
In order to improve the broadcasting tonequality of electrical equipment and image quality, applicant was once made that the invention of the noninductive coil of carry magnet before
Create, patent announcement number be the U of CN 201773659, in this patent the noninductive coil of carry magnet can be placed in electrical equipment side or
It is fixed on electrical equipment, noninductive coil and magnet can offset the inductance that obstacle is played to useful signal, and electrical equipment can play compared with small loss
Audio signal, play more high-quality sound or image.But the magnet in this patent is sintered magnet, sintered magnet is solid
Block, its magnetic field disperse to both ends, and Distribution of Magnetic Field is uneven, and uneven magnetic has been disturbed audio-frequence player device, and influence pair
Useful signal plays the neutralization effect of the inductance of obstacle.
The content of the invention
The application, which provides one kind, can offset useless inductance so that audio-frequence player device plays high-quality sound and the electricity of image quality
Road plate noninductive coil.
A kind of circuit board noninductive coil, including insulating circuit board, noninductive coil and sheet metal, nothing are provided in a kind of embodiment
Sense coil and sheet metal are attached on the same surface of insulating circuit board, if sheet metal has dry plate, evenly around being arranged in nothing
Feel the surrounding of coil.
Further, the doubling end to end of noninductive coil, turns to arc-shaped since folding section.
Further, sheet metal is trapezoidal sheet metal, and sheet metal has four, and four sheet metals are enclosed in noninductive coil
Surrounding, and there is gap between sheet metal.
Further, noninductive coil and sheet metal are printed on insulator chain plate surface.
Further, sheet metal is copper sheet.
Further, the thickness of insulating circuit board is 0.8mm.
Further, insulating circuit board is in 10 × 10mm2It is square.
Further, the winding radius of noninductive coil is less than 2mm.
According to the circuit board noninductive coil of above-described embodiment, because insulating circuit board is provided with the metal around noninductive coil
Piece, sheet metal can improve reception external magnetic field, and noninductive coil is located among sheet metal, can preferably apply in audio frequency apparatus
On, interference is eliminated, obtains the audio-video signal of higher quality.
Brief description of the drawings
Fig. 1 is a kind of positive structure diagram of circuit board noninductive coil in embodiment；
Fig. 2 is a kind of side structure schematic view of circuit board noninductive coil in embodiment.
Embodiment
The present invention is described in further detail below by embodiment combination accompanying drawing.
A kind of circuit board noninductive coil is provided in the present embodiment, and this circuit board noninductive coil can directly be attached to sound
On the playback equipments such as case, TV, mobile phone, or the side of playback equipment is placed on, circuit board noninductive coil can effectively offset shadow
Ring the useless inductance of playback equipment so that playback equipment can play the sound or image of high quality.
Specifically, as depicted in figs. 1 and 2, the circuit board noninductive coil of the present embodiment includes insulating circuit board 1, noninductive line
Circle 2 and sheet metal 3.Noninductive coil 2 and sheet metal 3, which are spaced apart, to be attached on the same surface of insulating circuit board 1, and sheet metal
3 are evenly distributed on the surrounding of noninductive coil 2.
Insulating circuit board 1 is made up of materials such as the resins that insulating, and insulating circuit board 1 is insulator.It is exhausted in the present embodiment
Edge circuit board 1 is square plate, and area is less than or equal to 10 × 10mm2, thickness is less than 1.5mm, for example, 0.8mm.In other implementations
Insulating circuit board 1 can be thinner, such as less than 0.5mm in example；Or insulating circuit board 1 is the circle that radius is less than 5mm.It is smaller
Thinner insulating circuit board 1 is easy to be attached on mobile phone or other small-sized playback equipments, also more aesthetically pleasing.In other embodiment
In, what can also be done whole device is bigger, to meet the improvement to large-scale audio-frequence player device.
As shown in figure 1, noninductive coil 2 is the metal of conductor, such as copper, iron, gold, silver, noninductive coil 2 is by conductive metal
Powder bonding or hot pressing are on the insulating circuit board 1 of insulation.The docking end to end of noninductive coil 2, turns to circle since folding section
One end of arcuation, i.e. circular arc is the folding section of noninductive coil 2, and the other end is the both ends end to end of noninductive coil 2, noninductive coil 2
Winding radius is less than 2mm.Noninductive coil 2 in the present embodiment is convex structure, you can realizes the effect for offsetting useless inductance.
Sheet metal 3 is trapezoidal sheet metal, and sheet metal 3 has four, is uniformly distributed the surrounding for being centered around noninductive coil 2, and
And there is gap between the noninductive coil 2 of sheet metal more than 3, also there is gap between sheet metal 3.Sheet metal 3 is copper sheet, has magnetic field
Receive function, sheet metal 3 is arranged on the surrounding of noninductive coil 2, can improve the receiving ability of noninductive coil 2.In other embodiments,
Sheet metal 3 can be other shapes, such as fan-shaped, and sheet metal is alternatively other quantity and is centered around the surrounding of noninductive coil 2.
The band circuit board noninductive coil of the present embodiment is attached on the mobile phone back side, and circuit board noninductive coil can be supported effectively
Disappear and the inductance of obstacle is played to mobile phone useful signal so that mobile phone can play more intact sound and play more intact
Image, allow user that there is more preferable Consumer's Experience, meet the use demand of user.
The circuit board noninductive coil of the present embodiment is attached to the back side of integrated computer, the noninductive line of circuit board of the present embodiment
Circle can effectively offset the inductance that obstacle is played to computer monitor image transmitting useful signal so that computer monitor can be more
Intact image and sound are quickly shown, enhances the display result of broadcast of integrated computer, allows user to have more
Good Consumer's Experience.
The circuit board noninductive coil of the present embodiment can be also attached in the equipment such as audio amplifier, radio, or is placed on the side of equipment
Side, circuit board noninductive coil utilize the principle of inductive, effectively useless caused by vision signal playback equipment itself
Inductive impedance is directly eliminated, and can effectively improve the tonequality or image quality of equipment, and high-quality audiovisual experience is brought to using.
The circuit board noninductive coil of the present embodiment, because 1 is provided with the sheet metal 3 around noninductive coil 2 on insulating circuit board,
Sheet metal 3 can improve reception external magnetic field, and noninductive coil 2 is located among sheet metal 3, can preferably apply in audio frequency apparatus
On, interference is eliminated, obtains the audio-video signal of higher quality.
Use above specific case is illustrated to the present invention, is only intended to help and is understood the present invention, not limiting
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make some simple
Deduce, deform or replace.
Claims (8)
1. a kind of circuit board noninductive coil, it is characterised in that described noninductive including insulating circuit board, noninductive coil and sheet metal
Coil and sheet metal are attached on the same surface of the insulating circuit board, if the sheet metal has a dry plate, and evenly around
In the surrounding of the noninductive coil.
2. circuit board noninductive coil as claimed in claim 1, it is characterised in that the doubling end to end of the noninductive coil, from folding
Start to turn to arc-shaped at conjunction.
3. circuit board noninductive coil as claimed in claim 1, it is characterised in that the sheet metal is trapezoidal sheet metal, described
Sheet metal has four, and four sheet metals are enclosed in the surrounding of the noninductive coil, and have between the sheet metal
Gap.
4. circuit board noninductive coil as claimed in claim 1, it is characterised in that the noninductive coil and sheet metal are printed on institute
State insulator chain plate surface.
5. circuit board noninductive coil as claimed in claim 1, it is characterised in that the sheet metal is copper sheet.
6. circuit board noninductive coil as claimed in claim 1, it is characterised in that the thickness of the insulating circuit board is 0.8mm.
7. circuit board noninductive coil as claimed in claim 1, it is characterised in that the insulating circuit board is in 10 × 10mm2Side
Shape.
8. circuit board noninductive coil as claimed in claim 1, it is characterised in that the winding radius of the noninductive coil is less than
2mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720653014.2U CN207038274U (en) | 2017-06-06 | 2017-06-06 | Circuit board noninductive coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720653014.2U CN207038274U (en) | 2017-06-06 | 2017-06-06 | Circuit board noninductive coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207038274U true CN207038274U (en) | 2018-02-23 |
Family
ID=61471196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720653014.2U Expired - Fee Related CN207038274U (en) | 2017-06-06 | 2017-06-06 | Circuit board noninductive coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207038274U (en) |
-
2017
- 2017-06-06 CN CN201720653014.2U patent/CN207038274U/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: 20180223 Termination date: 20200606 |