CN1797679A - Deflection magnetic yoke arrangement - Google Patents
Deflection magnetic yoke arrangement Download PDFInfo
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- CN1797679A CN1797679A CN 200510131917 CN200510131917A CN1797679A CN 1797679 A CN1797679 A CN 1797679A CN 200510131917 CN200510131917 CN 200510131917 CN 200510131917 A CN200510131917 A CN 200510131917A CN 1797679 A CN1797679 A CN 1797679A
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Abstract
The present invention disclose a deflection yoke device for controlling electron beam, the device comprises an insulator 13 for holding a deflection coil; and the magnetic bodies 11 at least a part of which has a projection part provided with a shape for cutting into the insulator and which are mounted to the insulator at predetermined intervals to reduce whining sound generated by vibration of a magnetic body effected by magnetic field, and to enhance versatility of the magnetic body.
Description
Technical field
The present invention relates to a kind of deflecting magnetic yoke device (deflection yoke device) that is used for the electron beam of control cathode ray tube (CRT), more specifically, relate to a kind of deflecting magnetic yoke device, it has reduced because toot the sound that the vibration by magnetic material that the influence in the magnetic field of frame deflector coil causes causes.
Background technology
Cathode ray tube device comprises: cathode ray tube, and it has the electron gun of divergent bundle; And deflecting magnetic yoke device, it is provided with horizontal deflection coil and the frame deflector coil that produces horizontal deflection magnetic field and vertical deflection magnetic field respectively, and this horizontal deflection magnetic field and vertical deflection magnetic field make the electron beam deflecting of cathode ray tube to each predetermined direction; And magnetic field correction device (correction device), its correction comes from the magnetic field of frame deflector coil.
Deflecting magnetic yoke device comprises: insulating part, and it is by for example resin molded formation; Horizontal deflection coil, it is connected to the inside of insulating part; Frame deflector coil, it is connected to the outside of insulating part; And magnetic material, it is arranged in the precalculated position of insulating part periphery.
Magnetic material is used to proofread and correct vertical deflection magnetic field.As everyone knows, owing to the magnetic line of force (magnetic field) that acts on the magnetic material, magnetic material produces toot sound by vibration.Consider this background, people have proposed various ways, so that magnetic material is fixed on the insulating part.
For example, the Japanese Patent Application Publication publication has disclosed a kind of deflecting magnetic yoke device 8-64156 number, wherein, on the surface of insulating frame, form the bar shaped protuberance, on magnetic material, form concave part, and this protuberance is fitted in the concave part, so that magnetic material is fixed on the insulating part.Above-mentioned publication has been described, and protuberance is fitted into produces conflict stress in the concave part, and the transverse vibration of magnetic material is weakened.
Yet this deflecting magnetic yoke device according to disclosing in Japanese Patent Application Publication publication 8-64156 number need form the bar shaped protuberance on the surface of insulating part.In addition, although device can suppress at first vibration, there is a problem in this device, promptly because the heat of deflection yoke itself generation and As time goes on cause insulating part to harden or contraction, and can not keep the conflict stress to this magnetic part.
Summary of the invention
One aspect of the present invention provides a kind of deflecting magnetic yoke device, comprising:
Insulating part, it keeps deflecting coil; And
Magnetic material, it has protuberance, and is connected to insulating part with predetermined space, and protuberance has the shape at least a portion insertion insulating part that makes protuberance.
Set forth other advantage of the present invention in the following description, and partly will become obviously or be to understand by the practice of the present invention by describing.Utilize the means and the combination that hereinafter particularly point out, can realize and obtain advantage of the present invention.
Description of drawings
Be incorporated into specification and constitute the accompanying drawing of the part of specification, show embodiments of the invention, and be used from explanation principle of the present invention with the detailed description one of above general description that provides and the following specific embodiment that provides.
Fig. 1 is the schematic cross sectional views that the example of the deflecting magnetic yoke device of having used one embodiment of the present of invention is shown.
Fig. 2 A is the schematic diagram that is used to illustrate the shape of the magnetic material on the insulating part that is fixed to deflecting magnetic yoke device shown in Figure 1, and shows the state that this magnetic material is observed from its side.
Fig. 2 B is the schematic diagram that is used to illustrate the shape of the magnetic material on the insulating part that is fixed to deflecting magnetic yoke device shown in Figure 1, and shows the state that this magnetic material is observed from its end.
Fig. 3 A illustrates the schematic diagram that the magnetic material shown in Fig. 2 A and Fig. 2 B is fixed to the example of the state on the insulating part.
Fig. 3 B be illustrate shown in Fig. 3 A, magnetic material is fixed to the schematic diagram of another example of the state on the insulating part.
Fig. 3 C be illustrate shown in Fig. 3 A, magnetic material is fixed to the schematic diagram of another example of the state on the insulating part.
Fig. 4 is the schematic diagram of example that another embodiment of the magnetic material shown in Fig. 2 A and Fig. 2 B is shown.
Fig. 5 illustrates the schematic diagram of another example that magnetic material is fixed to the insulating part of deflecting magnetic yoke device shown in Figure 1.
Fig. 6 illustrates the schematic diagram of another example that magnetic material is fixed to the insulating part of deflecting magnetic yoke device shown in Figure 1.
Fig. 7 illustrates the schematic diagram of another example that magnetic material is fixed to the insulating part of deflecting magnetic yoke device shown in Figure 1.
Embodiment
Below with reference to accompanying drawing embodiments of the invention are described.
Fig. 1 is the schematic diagram that an example of the deflecting magnetic yoke device of using one embodiment of the present of invention is shown.
Deflection yoke 1 shown in Fig. 1 comprises: insulating part 13, and it is fixed to the neck of the vacuum tube (vacuum vessel, not shown) of cathode ray tube (CRT); And multiple parts, be arranged near the insulating part 13.
Insulating part 13 forms truncated cone by resin molded the grade.
The horizontal deflection coil 15 that produces horizontal deflection magnetic field is positioned at the precalculated position of insulating part 13.The frame deflector coil 16 that produces vertical deflection magnetic field is installed to the periphery of insulating part 13.The iron core that reference number 17 indications are formed by ferrite or analog, frame deflector coil 16 twines this iron core 17.Horizontal deflection coil 15 and frame deflector coil 16 are fixed to the neck of cathode ray tube (not shown), and simultaneously insulating part 13 inserts between them, and make the electron beam deflecting from the electron gun (not shown) to predetermined direction.In addition, magnetic material 11 is set at the outer of insulating part 13 and places, to proofread and correct the magnetic field of frame deflector coil 16.
As everyone knows, self vibrates magnetic material 11 owing to the influence in the magnetic field that acts on magnetic material 11, therefore causes owing to be in contact with it toot the sound that insulating part 13 resonance of (fixed thereon) cause.As a way that addresses this problem, the contact area that firmly fixes between magnetic material 11 or minimizing insulating part 13 and the magnetic material 11 is proved to be effective.
Each magnetic material 11 of the present invention all is steel plates, has added the silicon (silicon steel plate) of predetermined percentage in the steel plate, and has presented the determined magnetic conductance.
Shown in Fig. 2 A and Fig. 2 B, each magnetic material 11 forms the curved shape (tabular) that limits along the curved surface of the periphery of insulating part 13, and has by a plurality of protuberances 12 of its edge part bending to provide zigzag fashion (for example, triangle) to form are provided.Fig. 2 A illustrates the state of the magnetic material of observing from its side, and Fig. 2 B illustrates the state of the magnetic material of observing from its end.
For example, protuberance 12 is formed on the place, four angles of each magnetic material 11 with deployed condition.Based on the size of insulating part (resin moulded parts) 13 and magnetic material 11, protuberance 12 can be set to any amount of needs.
Shown in Fig. 3 A and Fig. 3 B, each magnetic material 11 all inserts insulating part 13 a certain amount of states with protuberance 12 in the precalculated position of insulating part 13 and is fixed to insulating part 13.Protuberance 12 enters in the insulating part 13.Preferably, the adhesive (not shown) is used to fixing protuberance 12 is inserted on the insulating part 13.
The insertion amount that protuberance 12 inserts insulating part 13 depends on the size of magnetic material 11 and the peripheral shape of insulating part 13.For example, insertion amount is confirmed as the feasible fastening whole zone of passing between insulating part 13 and the magnetic material 11, gap that equals the thickness of magnetic material 11.In addition, the stage portion 12a shown in Fig. 3 C can be arranged on the tip of each protuberance 12, to determine the insertion amount of protuberance 12 to insulating part 13.
As shown in Figures 2 and 3, each magnetic material 11 with protuberance 12 is fixed to insulating part 13 with the state that protuberance 12 inserts insulating parts 13 scheduled volumes.Thereby even when magnetic material 11 vibrations, vibration also is not easy to be passed to insulating part (resin moulded parts) 13, and can reduce toot sound.
It below is the example of toot the value of actual measurement.When using routine techniques, toot the value of measurement is 52dB (a no protuberance).In contrast to this, when using magnetic material 11 of the present invention (a plurality of protuberance), toot value reduces to 50dB, has improved 2dB.
Fig. 4 is arranged on another embodiment of the protuberance 12 on each magnetic material 11.
As mentioned above, the quantity of protuberance 12 depends on the size of insulating part 13 and magnetic material 11.Yet if protuberance 12 only is arranged on the end of magnetic material 11, obviously insulating part 13 and magnetic material 11 are easy to vibration, and can expect that the gap between magnetic material 11 and the insulating part 13 is easy to become inhomogeneous.Therefore, as shown in Figure 4, in case of necessity, other protuberance 12 can be set at any position except that the end of magnetic material 11.
In Fig. 4, protuberance 12 is set at the medial side face of the end that is different from magnetic material 11, thereby makes magnetic material 11 be firmly-fixed to insulating part 13.Reduced undesirable vibration of magnetic material 11 like this.In addition, if prevented magnetic material 11 vibrations like this magnetic material 11 is contacted with insulating part 13.
Fig. 5 shows another embodiment that magnetic material is fixed to insulating part 13.
As shown in Figure 5, adhesive (shock absorber part) 14 is applied between insulating part 13 and the magnetic material 11, thereby makes magnetic material 11 be fixedly secured to insulating part 13.Adhesive 14 is preferably based on the adhesive of silicon and elasticity adhesive (even it still keeps certain elasticity after the sclerosis).Especially, even suitably select adhesive to prevent the vibration amplification of magnetic material 11 vibrations, and prevented that the resonance of magnetic material and insulating part 13 from producing toot sound, also kept adhesion strength simultaneously.
Fig. 6 shows the another embodiment that magnetic material is fixed to insulating part 13.
As shown in Figure 6, on insulating part 13, form the hook-type connecting portion (maintaining part) 18 that supports magnetic material 11.Thereby make magnetic material 11 be firmly-fixed to insulating part 13.Interval between each hook-type connecting portion 18 and the insulating part 13 is preferably narrow than the thickness of magnetic material 11 a little.Especially, magnetic material 11 is pressed in the interval between each hook-type connecting portion 18 and the insulating part 13, thereby prevents magnetic material 11 because the vibration that the influence in magnetic field causes.
As shown in Figure 6, the masterpiece that comes from the arrow B direction of magnetic material 11 is used for hook-type connecting portion 18, and the masterpiece on the arrow A direction opposite with direction B is used for magnetic material 11.Especially, by these conflict power, make magnetic material 11 be firmly-fixed to insulating part 13.
Fig. 7 illustrates an embodiment again who magnetic material is fixed to insulating part 13.
As shown in Figure 7, fixed part 19 is set on the side of insulating part 13 in the face of each hook-type connecting portion 18 of support magnetic material 11.Thereby, make magnetic material 11 be firmly-fixed to insulating part 13.
In structure shown in Figure 7, the conflict masterpiece is used for hook-type connecting portion 18 and magnetic material 11, thereby makes magnetic material 11 be firmly-fixed to insulating part 13.
As mentioned above, according to embodiments of the invention, the magnetic material that will be fixed on the insulating part (that is resin moulded parts) is fixed by adhesive, adhesive between magnetic material and insulating part, provide and harden after still keep elasticity, perhaps fix by the supporting mechanism that conflict power is provided.Thereby a kind of deflecting magnetic yoke device is provided, and it has reduced toot the sound that resonance caused of magnetic material.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. deflecting magnetic yoke device is characterized in that comprising:
Insulating part, it keeps deflecting coil; And
Magnetic material, it has protuberance, and is connected to described insulating part with predetermined space, and described protuberance has at least a portion that makes described protuberance and inserts shape in the described insulating part.
2. deflecting magnetic yoke device according to claim 1 is characterized in that:
The described protuberance of described magnetic material is arranged on the end of described magnetic material at least, to keep the predetermined space between described magnetic material and the described insulating part.
3. deflecting magnetic yoke device according to claim 2 is characterized in that:
The described protuberance of described magnetic material is arranged on a plurality of zones of the described end that is different from described magnetic material, to keep the described predetermined space between described magnetic material and the described insulating part.
4. deflecting magnetic yoke device is characterized in that comprising:
Insulating part, it keeps deflecting coil;
Magnetic material, it has protuberance, and is connected to described insulating part with predetermined space, and described protuberance has at least a portion that makes described protuberance and inserts shape in the described insulating part; And
Shock absorber part, it is arranged between described insulating part and the described magnetic material.
5. deflecting magnetic yoke device according to claim 4 is characterized in that:
Described shock absorber part comprises adhesive, and described adhesive keeps predetermined elasticity after sclerosis.
6. deflecting magnetic yoke device is characterized in that comprising:
Insulating part, it keeps deflecting coil;
Magnetic material, it has protuberance, and be connected to described insulating part with predetermined space, and as the magnetic field correction device of the vertical deflection magnetic field of proofreading and correct described deflecting coil, described protuberance has at least a portion that makes described protuberance and inserts shape in the described insulating part; And
Maintaining part, it is arranged on the described insulating part and in the mode of described magnetic material being pressed to the insulating part side and keeps described magnetic material.
7. deflecting magnetic yoke device according to claim 6 is characterized in that also comprising:
Fixed part, it is arranged on the predetermined portions of described insulating part, and cooperates the vibration that suppresses described magnetic material with described maintaining part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004376452 | 2004-12-27 | ||
| JP2004376452A JP2006185681A (en) | 2004-12-27 | 2004-12-27 | Deflection yoke device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1797679A true CN1797679A (en) | 2006-07-05 |
Family
ID=36738648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510131917 Pending CN1797679A (en) | 2004-12-27 | 2005-12-15 | Deflection magnetic yoke arrangement |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2006185681A (en) |
| CN (1) | CN1797679A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368751A (en) * | 2018-11-20 | 2019-02-22 | 陈培高 | A kind of sewage Magneto separate magnetic is protected every adsorption device |
-
2004
- 2004-12-27 JP JP2004376452A patent/JP2006185681A/en active Pending
-
2005
- 2005-12-15 CN CN 200510131917 patent/CN1797679A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368751A (en) * | 2018-11-20 | 2019-02-22 | 陈培高 | A kind of sewage Magneto separate magnetic is protected every adsorption device |
| CN109368751B (en) * | 2018-11-20 | 2021-10-19 | 北京耐特尔环境工程技术有限公司 | Sewage magnetic separation magnetic protection separation device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006185681A (en) | 2006-07-13 |
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