CN2354204Y - Surface-sticked bulb for lighting of liquidcrystal-board displaying background - Google Patents
Surface-sticked bulb for lighting of liquidcrystal-board displaying background Download PDFInfo
- Publication number
- CN2354204Y CN2354204Y CN 98252341 CN98252341U CN2354204Y CN 2354204 Y CN2354204 Y CN 2354204Y CN 98252341 CN98252341 CN 98252341 CN 98252341 U CN98252341 U CN 98252341U CN 2354204 Y CN2354204 Y CN 2354204Y
- Authority
- CN
- China
- Prior art keywords
- bulb
- end caps
- end cap
- glass envelope
- liquid crystal
- 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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- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
The utility model relates to a surface-stuck bulb for lighting of liquid crystal board displaying background, which is composed of a tubular glass envelope, vacuum seal filaments in the glass envelope, and electrode leads protruding both ends of the glass envelope. Both ends of bulb is provided with tubular conductive end caps that are butted with the ends of the glass envelope, the electrode leads are fixed on the end caps by soldering tin that is perfused in a conductive end cavity, and the electrode leads and the soldering tin are both electrically connected with the end caps. Since the conductive end caps are made of conductive pipe material, the utility model has the advantages that the shape and the dimension of the end caps have good uniformity and have small preset value error with the shape and the dimension of the surface-stuck elements, the disallowed amount of the end caps is small due to equipment nonrecognition, the bulb loss is little in production, and the production cost of the products are low.
Description
The utility model relates to a kind of surface-pasted bulb.
Adopt in the electronic product of liquid crystal board demonstration at some, be surface-pasted pea lamp as the employed bulb of LCD panel background illumination in the pager of certain model.Element assembling is to be finished automatically by special surface mount process and equipment in the production run of this electronic product, in order to make surface-mounting equipment recognition component and it is installed in the shape and size that all preestablish element on the relevant position in surface mount process for surface-mounting equipment when the assembling work.For this reason, the shape and size of used element should have good consistance, and dwindle as far as possible and preset value between error, reduce because of the disallowable element amount of equipment nonrecognition, reduce element loss, be beneficial to the reduction of production cost.And existing to be used for liquid crystal board display background illumination be tin ball formula structure with surface-pasted bulb, promptly point is not scalded on the contact conductor of bulb side and makes a tin ball.Because the tin ball is natural shaped, its shape, size are difficult to be consistent, and cause the central axis of the tin ball denection bulb of shaping that the global shape of bulb is changed because of the very thin very easily bending of contact conductor simultaneously.For above-mentioned reasons, existing tin ball formula liquid crystal board display background illumination is big with error between the preset value of its shape of surface-pasted bulb, size and surface mount process, the bulb amount that is divested because of the equipment nonrecognition during assembling work is up to 15-24%, so the bulb loss is big, the production cost of products height.
The purpose of this utility model provides a kind of shape, size has good consistance, and error is little and be easy to guarantee between the surface mount process setting value, the bulb loss of production Shen is little, the surface-pasted bulb of liquid crystal board display background illumination that the production cost is low.
The utility model is realized by following design.
Being connected two ends that the other end stretches out the lighting bulb that the contact conductor outside the glass bulb constitutes with filament by tubulose glass bulb, a vacuum seal filament in glass bulb and an end has the tubulose conduction end cap that docks with the glass bulb end, bulb two contact conductors to be fixed on the conduction end cap and to electrically connect with the conduction end cap and constitute the surface-pasted bulb of liquid crystal board display background illumination by being poured in scolding tin in the two conduction end cap chambeies respectively.
Be the weldability of protection bulb, the illumination of liquid crystal board display background is that contact conductor, its surface of conduction end cap of stretching out outside the glass bulb have tin coating with further improving of surface-pasted bulb.
The liquid crystal board display background illumination that the utility model provides adopts conduction tubing to make with the tubulose conduction end cap of surface-pasted bulb, its shape, dimensional uniformity are good, and the error between the surface mount process preset value is little and be easy to guarantee, the bulb amount disallowable because of the equipment nonrecognition is few, so the bulb loss is few, the production cost is low.
Accompanying drawing is an embodiment of the present utility model, further specifies the utility model below in conjunction with embodiment.
Fig. 1 is the structural drawing (broken section) of liquid crystal board display background illumination with surface-pasted bulb.
As shown in the figure, liquid crystal board display background illumination with surface-pasted bulb for by tubulose glass bulb (7), is connected two ends that the other end stretches out the lighting bulb of contact conductor (1) the glass bulb chamber outside, (3) formation with filament by bulb core-column (2), (4) vacuum seal filament (6) in the glass bulb chamber and an end and has the tin-plated brass of docking to conduct electricity end cap with the glass bulb end, contact conductor by be poured in the scolding tin (8) that conducts electricity in the end cap chamber be fixed on conduct electricity end cap interior and with conduct electricity end cap electrically connect constitute.
Claims (2)
1, the surface-pasted bulb of a kind of liquid crystal board display background illumination, include and be connected the other end with filament by tubulose glass bulb, vacuum seal filament, the end in glass bulb and stretch out the lighting bulb that the contact conductor outside the glass bulb constitutes, there is the tubulose conduction end cap that docks with the glass bulb end at the two ends that it is characterized in that said bulb, and two contact conductors of bulb are fixed on the conduction end cap and with the conduction end cap and electrically connect by being poured in scolding tin in the two conduction end cap chambeies respectively.
2, use surface-pasted bulb by the described liquid crystal board display background illumination of claim 1, it is characterized in that said conduction end cap, bulb stretch out the outer contact conductor surface of glass bulb tin coating is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98252341 CN2354204Y (en) | 1998-12-29 | 1998-12-29 | Surface-sticked bulb for lighting of liquidcrystal-board displaying background |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98252341 CN2354204Y (en) | 1998-12-29 | 1998-12-29 | Surface-sticked bulb for lighting of liquidcrystal-board displaying background |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2354204Y true CN2354204Y (en) | 1999-12-15 |
Family
ID=33996052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98252341 Expired - Fee Related CN2354204Y (en) | 1998-12-29 | 1998-12-29 | Surface-sticked bulb for lighting of liquidcrystal-board displaying background |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2354204Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101310363B (en) * | 2005-11-14 | 2010-05-26 | Nec照明株式会社 | External electrode driven discharge lamp, method for producing same, and liquid crystal display |
-
1998
- 1998-12-29 CN CN 98252341 patent/CN2354204Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101310363B (en) * | 2005-11-14 | 2010-05-26 | Nec照明株式会社 | External electrode driven discharge lamp, method for producing same, and liquid crystal display |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Tianjin advance link Electronics Co., Ltd. Document name: Notice of termination |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |