CN210897199U - High-voltage exposure lamp - Google Patents
High-voltage exposure lamp Download PDFInfo
- Publication number
- CN210897199U CN210897199U CN201922501767.3U CN201922501767U CN210897199U CN 210897199 U CN210897199 U CN 210897199U CN 201922501767 U CN201922501767 U CN 201922501767U CN 210897199 U CN210897199 U CN 210897199U
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- negative pole
- bulb
- quartz tube
- positive pole
- quartz capsule
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Abstract
The utility model belongs to the technical field of the exposure lamp technique and specifically relates to a high pressure exposure lamp, the bulb has, be located the negative pole quartz capsule and the positive pole quartz capsule that the shrink of bulb both ends formed and set up negative pole and the positive pole in the bulb, the surface of negative pole quartz capsule and the surface of positive pole quartz capsule all have metal coating, the metal coating of negative pole quartz capsule outer surface extends to the negative pole end of bulb, the metal coating of positive pole quartz capsule outer surface extends to the positive pole end of bulb, negative pole quartz capsule outer cover is equipped with the protective sheath, the metal coating of negative pole quartz capsule outer surface is located the protective sheath, the utility model discloses utilize and establish the protective sheath at negative pole quartz capsule outer cover and keep out the wind to avoid carrying out the air current that the forced air cooling will float at the metal steam outside the negative pole quartz capsule, improve the durability of negative pole quartz capsule outer surface metal coating.
Description
Technical Field
The utility model belongs to the technical field of the exposure lamp technique and specifically relates to a high-pressure exposure lamp.
Background
The high-pressure exposure lamp is suitable for plate making exposure of materials such as printing, lithographic printing, labels, printed circuit boards, solder-resisting dry films, liquid resins and the like, the conventional high-pressure exposure lamp is provided with a bulb shell, a cathode quartz tube and an anode quartz tube which are formed by shrinking the two ends of the bulb shell, and a cathode and an anode which are arranged in the bulb shell, the outer surface of the cathode quartz tube and the outer surface of the anode quartz tube are both provided with metal coatings to play roles of shading, increasing strength and the like, the conventional high-pressure exposure lamp generally performs air cooling on the cathode end of the bulb shell to dissipate strong heat generated when the high-pressure exposure lamp works, meanwhile, the strong heat generated when the high-pressure mercury lamp works can evaporate the metal coatings to enable the metal vapor to float the surface of the metal coatings, after the high-pressure mercury lamp is extinguished and cooled, the metal vapor can be condensed on the surface of the metal coatings again, however, air flow for performing air cooling on the cathode end of the bulb shell can, the loss of the metal coating causes the metal coating outside the cathode quartz tube to be thinner and thinner.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the high-pressure exposure lamp is provided for solving the problems that metal steam generated by heating a metal coating outside a cathode quartz tube of the high-pressure exposure lamp in the prior art is easily blown away by air-cooled airflow at the cathode end of a bulb shell, so that the metal coating is lost and becomes thinner and thinner outside the cathode quartz tube.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a high-pressure exposure lamp, has the bulb, is located the negative pole quartz capsule and the positive pole quartz capsule and the negative pole and the positive pole of setting in the bulb that the shrink of bulb both ends formed, negative pole and negative pole tungsten bar are connected, and the negative pole tungsten bar is located the negative pole quartz capsule, positive pole and positive pole tungsten bar are connected, and the positive pole tungsten bar is located the positive pole quartz capsule, the surface of negative pole quartz capsule and the surface of positive pole quartz capsule all have metallic coating, the metallic coating of negative pole quartz capsule outer surface extends to the negative pole end of bulb, the metallic coating of positive pole quartz capsule outer surface extends to the positive pole end of bulb, the cathode quartz capsule overcoat is equipped with the protective sheath, the metallic coating of negative pole quartz capsule outer surface is located the protective sheath.
Furthermore, the metal coating at the cathode end of the bulb is partially or completely positioned in the protective sleeve.
Furthermore, the protective sleeve is in threaded connection with a locking screw, and the end part of the threaded end of the locking screw abuts against the outer peripheral surface of the cathode quartz tube.
Further, the material of protective sheath is aluminium.
The utility model has the advantages that: the utility model discloses a high pressure exposure lamp utilizes and establishes the protective sheath at the negative pole quartz capsule overcoat and keep out the wind to avoid the cell-shell negative pole end to carry out the air-cooled air current and will float the metal steam outside the negative pole quartz capsule and blow away, improve the durability of negative pole quartz capsule surface metal coating.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic view of the high-pressure exposure lamp of the present invention.
In the figure: 1. bulb, 2, cathode quartz tube, 3, anode quartz tube, 4, cathode, 5, anode, 6, metal coating, 7, protective sleeve, 8 and locking screw.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic drawings, which illustrate the basic structure of the invention only in a schematic way, and thus show only the components that are relevant to the invention, and the directions and references (e.g., upper, lower, left, right, etc.) may be used only to help describe the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
Example 1
As shown in fig. 1, a high-voltage exposure lamp, has a bulb 1, a cathode quartz tube 2 and an anode quartz tube 3 which are located at two ends of the bulb 1 and are formed by shrinkage, and a cathode 4 and an anode 5 which are arranged in the bulb 1, wherein the cathode 4 is connected with a cathode tungsten rod, the cathode tungsten rod is located in the cathode quartz tube 2, the anode 5 is connected with the anode tungsten rod, the anode tungsten rod is located in the anode quartz tube 3, the outer surface of the cathode quartz tube 2 and the outer surface of the anode quartz tube 3 both have a metal plating layer 6, the metal plating layer 6 on the outer surface of the cathode quartz tube 2 extends to the cathode end of the bulb 1, the metal plating layer 6 on the outer surface of the anode quartz tube 3 extends to the anode end of the bulb 1, the outer sleeve of the cathode quartz tube 2 is provided with a protective sleeve 7, and the metal plating layer 6 on the outer surface of the cathode quartz tube 2 is.
The metal coating 6 at the cathode end of the bulb 1 is partially or completely located within the protective sheath 7; thereby the protective sleeve 7 can shield the metal coating 6 at the cathode end of the bulb shell 1 and reduce the loss of the metal coating 6 at the cathode end of the bulb shell 1.
A locking screw 8 is connected to the protective sleeve 7 in a threaded manner, and the end part of the threaded end of the locking screw 8 abuts against the outer peripheral surface of the cathode quartz tube 2; so that the protective cover 7 can be fixed on the cathode quartz tube 2; specifically, the locking screws 8 on the protective sleeve 7 are multiple and evenly distributed along the circumference.
The material of protective sheath 7 is aluminium, and protective sheath 7 that the material is aluminium can be favorable to the heat dissipation to improve the heat dispersion of this exposure lamp.
The high-voltage exposure lamp in the embodiment shields the wind by sleeving the protective sleeve 7 outside the cathode quartz tube 2, so that the phenomenon that air-cooled airflow at the cathode end of the bulb shell 1 blows away metal steam floating outside the cathode quartz tube 2 is avoided, and the durability of the metal coating 6 on the outer surface of the cathode quartz tube 2 is improved.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. The utility model provides a high pressure exposure lamp, has bulb (1), is located bulb (1) both ends shrink cathode quartz tube (2) and positive pole quartz tube (3) that form and sets up negative pole (4) and positive pole (5) in bulb (1), negative pole (4) and negative pole tungsten bar are connected, and the negative pole tungsten bar is located negative pole quartz tube (2), positive pole (5) and positive pole tungsten bar are connected, and positive pole tungsten bar is connected and is located positive pole quartz tube (3), the surface of negative pole quartz tube (2) and the surface of positive pole quartz tube (3) all have metal coating (6), the metal coating (6) of negative pole quartz tube (2) surface extend to the negative pole end of bulb (1), the metal coating (6) of positive pole quartz tube (3) surface extend to the positive pole end of bulb (1), its characterized in that: the cathode quartz tube (2) is sleeved with a protective sleeve (7), and the metal coating (6) on the outer surface of the cathode quartz tube (2) is located in the protective sleeve (7).
2. The high pressure exposure lamp of claim 1, wherein: the metal coating (6) at the cathode end of the bulb shell (1) is partially or completely positioned in the protective sleeve (7).
3. The high pressure exposure lamp of claim 1, wherein: and the protective sleeve (7) is connected with a locking screw (8) in a threaded manner, and the end part of the threaded end of the locking screw (8) abuts against the outer peripheral surface of the cathode quartz tube (2).
4. The high pressure exposure lamp of claim 1, wherein: the protective sleeve (7) is made of aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922501767.3U CN210897199U (en) | 2019-12-31 | 2019-12-31 | High-voltage exposure lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922501767.3U CN210897199U (en) | 2019-12-31 | 2019-12-31 | High-voltage exposure lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210897199U true CN210897199U (en) | 2020-06-30 |
Family
ID=71323432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922501767.3U Active CN210897199U (en) | 2019-12-31 | 2019-12-31 | High-voltage exposure lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210897199U (en) |
-
2019
- 2019-12-31 CN CN201922501767.3U patent/CN210897199U/en active Active
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