CN2691040Y - Device for reducing deflection coil - Google Patents
Device for reducing deflection coil Download PDFInfo
- Publication number
- CN2691040Y CN2691040Y CN 200420041676 CN200420041676U CN2691040Y CN 2691040 Y CN2691040 Y CN 2691040Y CN 200420041676 CN200420041676 CN 200420041676 CN 200420041676 U CN200420041676 U CN 200420041676U CN 2691040 Y CN2691040 Y CN 2691040Y
- Authority
- CN
- China
- Prior art keywords
- coil
- vertical coil
- reinforced sheet
- utility
- noise
- 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 - Lifetime
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Abstract
The utility model discloses a device for reducing the noise of a deflection coil, which comprises an insulator on which a vertical coil is fixed, wherein, a reinforced sheet is arranged in the clamping groove of the insulator, an acetic acid adhesive tape is covered on the reinforced sheet, and a self-adhesive rubber wedge connected with the vertical coil and the reinforced sheet is fixedly arranged between the vertical coil and the reinforced sheet. The utility model has simple structure and low manufacturing cost, which can be extensively used in the process of producing display tubes so as to preferably control and reduce the noise problem existing in TV sets.
Description
Technical field
The utility model belongs to the color picture tube deflecting coil and makes the field, is specifically related to a kind of device that utilizes rubber chock material to reduce the deflecting coil noise.
Background technology
In the structural design of the CRT that television set (display) uses, deflecting coil isolator positive camber neck is equipped with metal and strengthens sheet.When high-frequency current passed through coil, vibration took place and produces noise in the enhancing sector-meeting that is arranged in high frequency magnetic field.Particularly since strengthen sheet during fabrication curvature can not fit fully with isolator, or because this operation operation error causes and strengthens sheet and install when not in place, vibrating noise can be more obvious.Therefore do not meet environmental requirement, and have a strong impact on client's satisfaction.When big or frequency was higher when screen size, this effect can be exaggerated and show more outstandingly and obvious, has a strong impact on and restricted television set sales volume and quality.Prior art adopts usually and install black sea adhesive tape additional between isolator and vertical coil when solving the above problems.Because loop line causes about the negative camber gap and do not wait during the vertical coil coiling, sea adhesive tape material is soft, the countermeasure poor effect; Install the multiple white acetate tape between isolator and vertical coil additional, because spacing is bigger between bigger ST type isolator of screen and vertical coil, white acetate tape needs more than 10 layers, Master Cost height, poor operability; Utilize the deflecting coil neck to irritate the thermosol method, though effect is better, the material cost height influences the product competition advantage.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and a kind of easy to operate, device of suppressing the good reduction deflecting coil noise of noise result is provided.
For achieving the above object, the technical solution adopted in the utility model is: be fixed with interconnective with it band tack rubber chock between vertical coil and enhancing sheet.
The utility model also has following characteristics: the hardness of rubber chock is 58 °-68 °.
Description of drawings
Fig. 1 is structure working principle figure of the present utility model
Embodiment
Below in conjunction with accompanying drawing structural principle of the present utility model and operation principle are described in further detail.
With reference to Fig. 1, the utility model comprises isolator 5, and vertical coil 1 is fixed on the isolator 5, is provided with in the draw-in groove of isolator 5 to strengthen sheet 2, acetate tape 4 covers and strengthens on the sheet 2, is fixed with interconnective with it tack rubber chock 3 between vertical coil 1 and enhancing sheet 2.
Operation principle of the present utility model is as follows: tack rubber chock 3 is installed in and strengthens between sheet 2 and the vertical coil 1, utilizes the elasticity extruding of tack rubber chock 3 to suppress the vibration sounding that metal strengthens sheet 2, finally reaches the effect that reduces noise.
Simple and the low cost of manufacture of this utility structure can be widely used in the production process of picture tube, thereby suppresses and lowered the noise problem of television set existence preferably.
Claims (2)
1. device that reduces the deflecting coil noise, comprise isolator (5), vertical coil (1) is fixed on the isolator (5), be provided with in the draw-in groove of isolator (5) and strengthen sheet (2), acetate tape (4) covers and strengthens on the sheet (2), it is characterized in that: be fixed with interconnective with it tack rubber chock (3) between vertical coil (1) and enhancing sheet (2).
2. a kind of device that reduces the deflecting coil noise of narrating according to claim 1, it is characterized in that: the hardness of tack rubber chock (3) is 58 °-68 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041676 CN2691040Y (en) | 2004-03-18 | 2004-03-18 | Device for reducing deflection coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041676 CN2691040Y (en) | 2004-03-18 | 2004-03-18 | Device for reducing deflection coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2691040Y true CN2691040Y (en) | 2005-04-06 |
Family
ID=34671407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420041676 Expired - Lifetime CN2691040Y (en) | 2004-03-18 | 2004-03-18 | Device for reducing deflection coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2691040Y (en) |
-
2004
- 2004-03-18 CN CN 200420041676 patent/CN2691040Y/en not_active Expired - Lifetime
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140318 Granted publication date: 20050406 |