CN200990675Y - Anti-magnetized coil for display device - Google Patents
Anti-magnetized coil for display device Download PDFInfo
- Publication number
- CN200990675Y CN200990675Y CN 200620016606 CN200620016606U CN200990675Y CN 200990675 Y CN200990675 Y CN 200990675Y CN 200620016606 CN200620016606 CN 200620016606 CN 200620016606 U CN200620016606 U CN 200620016606U CN 200990675 Y CN200990675 Y CN 200990675Y
- Authority
- CN
- China
- Prior art keywords
- core body
- magnetized coil
- excitation winding
- coil
- iron cores
- 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
Links
- 238000004804 winding Methods 0.000 claims abstract description 29
- 230000005284 excitation Effects 0.000 claims description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 25
- 238000009422 external insulation Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 230000004907 flux Effects 0.000 abstract description 3
- 239000011521 glass Substances 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005347 demagnetization Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
Abstract
The utility model discloses a degaussing loop of a display, the display consists of a cathodal shielding board (1), the degaussing loop is positioned around the cathodal shielding board (1) and parallels or locates at the same plane with the cathodal shielding board (1); the degaussing loop consists of a core (2) and two exciting windings (3); the exciting windings (3) can generate a magnetic field with the same central magnetic flux and are positioned at two opposite sides of the core (2) respectively. By adopting such structure, the utility model greatly improves the magnetic field utilization, thus improving the degaussing effect; moreover, as the magnetic is dense in consistency, the better degauss effect can be achieved by utilizing fewer loops, and the utility model has the advantage of material saving.
Description
Technical field
The utility model relates to a kind of anti-magnetized coil, relates in particular to a kind of anti-magnetized coil that is used for display.
Background technology
At present, the display used of television set on the market or computer is to adopt the CRT picture tube mostly.As shown in Figure 1, existing C RT picture tube comprises phosphor screen 41, glass bulb 42, shadow mask plate 43 and electron gun 44, wherein, phosphor screen 41, shadow mask plate 43 and electron gun 44 all are arranged on glass bulb 42 inside, shadow mask plate 43 is arranged on the rear of phosphor screen 41,44 afterbodys that are installed in glass bulb 42 of electron gun by shadow mask board mount 431.
Because display may cause because of the influence of surrounding magnetic field being magnetized when work, causes the distortion of image or color.Therefore, also be provided with an anti-magnetized coil 45 on existing C RT picture tube, this anti-magnetized coil 45 rings are located at around the picture tube and be arranged in parallel with shadow mask plate in display screen and the picture tube.After anti-magnetized coil 45 energisings, according to magnetic induction principle, produce an alternating magnetic field (as in Fig. 1 direction of arrow shown in) vertical by the alternating current in this anti-magnetized coil 45 in the geometric center of coil with shadow mask plate 43, thereby can carry out demagnetization to shadow mask plate 43, solve the problem of image or color distortion.
The major defect of this technology is, the anti-magnetized coil consumptive material that is used to produce magnetic field is many, and the magnetic field area is big and the unit magnetic flux density is little, and efficient is not high.This not only wastes power, and is saved as this high problem.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of anti-magnetized coil of display, and magnetic field utilization ratio height can not only improve erasure effect, can also reduce the use of consumptive material.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of anti-magnetized coil of display, this display comprises the shadow mask plate, described anti-magnetized coil ring is located at the paralleling or locate on the same plane of shadow mask plate on every side and with the shadow mask plate; This anti-magnetized coil comprises core body and two excitation winding that can produce the identical magnetic field of center flow direction, and wherein, two excitation winding are arranged on the relative both sides of core body.
Described two excitation winding are arranged on the left and right sides of core body.Described excitation winding comprises inner insulating layer, coil and external insulation layer, and this coil is arranged between inner insulating layer and the external insulation layer.The framework that described core body is one of the forming, described excitation winding is wrapped on the core body; Described core body also can comprise two and be respectively that " core body of [" shape, these two core bodys are set in and form a framework in two excitation winding; Described core body also can comprise two horizontal and two perpendicular columnar iron cores of putting, wherein, be wound with two excitation winding on two perpendicular columnar iron cores of putting respectively and be respectively arranged with a recess at these two upper/lower terminals that erect the columnar iron cores of putting, two horizontal columnar iron cores are spliced into a framework of sealing by these four recesses and two perpendicular columnar iron cores of putting in addition.Described excitation winding is to twine in the mode of whole section or segmentation.Described core body is to be made by iron, copper or aluminium.
After adopting such structure, can improve the magnetic field utilization ratio greatly, thereby improve erasure effect; In addition, because magnetic flux density is bigger, can uses less coil and reach erasure effect preferably, so the utility model also has the advantage of saving consumptive material.
Description of drawings
The utility model is described in further detail to reach embodiment below with reference to the accompanying drawings.
Fig. 1 is the working state schematic representation of anti-magnetized coil under the prior art;
Fig. 2 is a scheme of installation of the present utility model;
Fig. 3 is an internal structure schematic diagram of the present utility model;
Fig. 4 is a fundamental diagram of the present utility model;
Fig. 5 is the generalized section of winding in the utility model;
Fig. 6 is the structural representation of first kind of embodiment of the present utility model;
Fig. 7 is the structural representation of second kind of embodiment of the present utility model;
Fig. 8 is the structural representation of the third embodiment of the present utility model;
Fig. 9 is the partial enlarged drawing of Fig. 8;
Figure 10 is the structural representation of the 4th kind of embodiment of the present utility model.
Embodiment
The anti-magnetized coil of the display shown in Fig. 2 and 3, this display comprise shadow mask plate 1, display screen 13 and glass bulb 11.Wherein, display screen 13 is arranged on glass bulb 11 inside, 1 rear that is installed in the glass bulb 11 by shadow mask board mount 12 and is positioned at display screen 13 of shadow mask plate.Described anti-magnetized coil ring be located at shadow mask plate 1 around, and be arranged in parallel, as optimal way, also anti-magnetized coil can be arranged on the vertical plane identical with shadow mask plate 1.Can improve the utilance in magnetic field to greatest extent like this.This anti-magnetized coil comprises core body 2 and two excitation winding 3, and wherein, two excitation winding 3 are arranged on the relative both sides of core body 2, and these two excitation winding 3 are to adopt opposite direction to be wrapped on the core body 2.Core body 2 can be made by materials such as iron, copper or aluminium, and what adopt in the present embodiment is iron material, and excitation winding 3 is arranged on the left and right sides of core body 2.
As shown in Figure 5, described excitation winding 3 comprises inner insulating layer 31, coil 32 and external insulation layer 33, and this coil 32 is arranged between inner insulating layer 31 and the external insulation layer 33.
As first kind of embodiment of the present utility model, as shown in Figure 6, the sealing framework that described core body 2 is one of the forming, described two excitation winding 3 are whole section left and right sides that are wrapped in this core body 2.
As second kind of embodiment of the present utility model, as shown in Figure 7, described core body 2 is respectively by two that " core body of [" shape constitutes, and these two core bodys is inserted in respectively in two excitation winding 3, thereby is combined into the framework of a sealing.
As the third embodiment of the present utility model, shown in Fig. 8 and 9, described core body 2 is made of two columnar iron cores 22 that vertically are provided with and the columnar iron core 21 of two horizontally sets.Wind two excitation winding 3 respectively at two columnar iron cores 22, and four recesses 221 are set respectively at the upper/lower terminal of these two columnar iron cores 22, two horizontal columnar iron cores 21 and the columnar iron core 22 that vertically is provided with are spliced into the framework of a sealing by these four recesses 221.
As the 4th kind of embodiment of the present utility model, as shown in figure 10, the sealing framework that described core body 2 is one of the forming, and two excitation winding 3 are left and right sides that segmentation is wrapped in this core body 2.
During work, shown in Fig. 3 and 4, press the direction energising shown in the figure after, produce the identical and magnetic line of force that parallel with described shadow mask plate 1 of direction in two excitation winding 3, thereby form top and be the N utmost point and the bottom is the top-down magnetic field of the S utmost point, reach the effect of demagnetization.
Claims (8)
1, a kind of anti-magnetized coil of display, this display comprise shadow mask plate (1), and described anti-magnetized coil ring is located at paralleling of shadow mask plate (1) on every side and with shadow mask plate (1); It is characterized in that: described anti-magnetized coil also can be arranged on the same plane of shadow mask plate (1) on; This anti-magnetized coil comprises core body (2) and two excitation winding (3) that can produce the identical magnetic field of center flow direction, and wherein, two excitation winding (3) are arranged on the relative both sides of core body (2).
2, the anti-magnetized coil of display according to claim 1 is characterized in that: described two excitation winding (3) are arranged on the left and right sides of core body (2).
3, the anti-magnetized coil of display according to claim 1 and 2, it is characterized in that: described excitation winding (3) comprises inner insulating layer (31), coil (32) and external insulation layer (33), and this coil (32) is arranged between inner insulating layer (31) and the external insulation layer (33).
4, the anti-magnetized coil of display according to claim 2 is characterized in that: the framework that described core body (2) is one of the forming, described excitation winding (3) is wrapped on the core body (2).
5, the anti-magnetized coil of display according to claim 2 is characterized in that: described core body (2) comprises two and is respectively that " core body of [" shape (2), these two core bodys (2) are set in and form a framework in two excitation winding (3).
6, the anti-magnetized coil of display according to claim 2, it is characterized in that: described core body (2) comprises two horizontal columnar iron cores (21) and two perpendicular columnar iron cores of putting (22), wherein, be wound with two excitation winding (3) on two perpendicular columnar iron cores of putting (22) respectively and be respectively arranged with a recess (221) at these two upper/lower terminals that erect the columnar iron cores of putting (22), two horizontal columnar iron cores (21) are spliced into the framework of a sealing by these four recesses (221) and two perpendicular columnar iron cores of putting (21,22) in addition.
7, according to the anti-magnetized coil of claim 4 or 6 described displays, it is characterized in that: described excitation winding (3) is to twine in the mode of whole section or segmentation.
8, the anti-magnetized coil of display according to claim 1 and 2 is characterized in that: described core body (2) is to be made by iron, copper or aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620016606 CN200990675Y (en) | 2006-12-20 | 2006-12-20 | Anti-magnetized coil for display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620016606 CN200990675Y (en) | 2006-12-20 | 2006-12-20 | Anti-magnetized coil for display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200990675Y true CN200990675Y (en) | 2007-12-12 |
Family
ID=38941705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620016606 Expired - Fee Related CN200990675Y (en) | 2006-12-20 | 2006-12-20 | Anti-magnetized coil for display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200990675Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571615A (en) * | 2017-03-07 | 2018-09-25 | 株式会社不二工机 | Coil device and the motor-driven valve and solenoid valve for using the coil device |
-
2006
- 2006-12-20 CN CN 200620016606 patent/CN200990675Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571615A (en) * | 2017-03-07 | 2018-09-25 | 株式会社不二工机 | Coil device and the motor-driven valve and solenoid valve for using the coil device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071212 Termination date: 20111220 |