CN215184997U - TO glass metal tube seat for high-power laser - Google Patents
TO glass metal tube seat for high-power laser Download PDFInfo
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- CN215184997U CN215184997U CN202121373964.2U CN202121373964U CN215184997U CN 215184997 U CN215184997 U CN 215184997U CN 202121373964 U CN202121373964 U CN 202121373964U CN 215184997 U CN215184997 U CN 215184997U
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- carbon steel
- steel base
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- heat dissipation
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Abstract
The utility model belongs TO the technical field of photoelectric communication, and discloses a TO glass metal tube seat for a high-power laser, which comprises a carbon steel base, a glass insulator, a lead and an oxygen-free copper heat dissipation column, wherein the carbon steel base is provided with a first through hole matched with the shape of the glass insulator and a second through hole matched with the shape of the oxygen-free copper heat dissipation column; the lead is connected with the carbon steel base through a glass insulator; the oxygen-free copper heat dissipation column is fixedly connected with the second through hole of the carbon steel base in a welding mode. The carbon steel base of the utility model can be well hermetically sealed with the glass insulator, so as TO ensure the TO tube seat airtight grade, and the carbon steel has certain hardness and is not easy TO be damaged in the electroplating process; the carbon steel base is provided with the hole, and the heat dissipation column is directly arranged in the carbon steel base, so that the problem of insufficient heat dissipation can be solved.
Description
Technical Field
The utility model belongs TO the technical field of photoelectric communication, particularly, relate TO a TO glass metal tube socket for high-power laser instrument.
Background
Because a lot of semiconductors emit a large amount of heat energy when working, the heat energy needs to be conducted away through the heat conduction materials in time and rapidly, otherwise, the performance of the semiconductor chip is affected and the chip is even directly damaged due to overhigh temperature; therefore, many semiconductor chip packaging materials have very high requirements on the heat conduction performance, and the conventional integrally-formed TO tube seat cannot meet the heat dissipation requirement of a high-power laser, but the BOX packaging material has high cost and large volume and is not suitable for products with larger consumption, such as laser headlamps and the like.
There are two types of prior art TO tube bases for high power lasers: 1. directly changing the TO tube seat material into oxygen-free copper TO improve the heat dissipation capability, and welding the radio frequency connecting assembly on the oxygen-free copper base in a radio frequency connecting assembly mode TO ensure airtight packaging; 2. the TO tube seat is made of carbon steel, but the column attached with the chip is made of oxygen-free copper, and the oxygen-free copper heat dissipation column is directly welded on the carbon steel base.
The defects in the prior art are that the TO tube seat with the oxygen-free copper base is adopted, the oxygen-free copper tube seat cannot be matched with a tube cap for welding, the problems of poor air tightness and the like exist after the cap is sealed by the thermal expansion coefficient of the oxygen-free copper wire, and secondly, the oxygen-free copper has low hardness, is easy TO collide and deform in the production process and cannot be scanned and positioned; a TO tube seat of an oxygen-free copper column is welded on a carbon steel base, the heat of a chip is transferred TO the oxygen-free copper with high thermal conductivity, and the oxygen-free copper is transferred TO the carbon steel base with low thermal conductivity, so that the heat dissipation requirement cannot be met.
SUMMERY OF THE UTILITY MODEL
TO the TO tube socket that exists among the prior art can't compromise the problem of the high and heat dissipation demand of gas tightness simultaneously, the utility model provides a TO glass metal tube socket for high-power laser instrument, this TO glass metal tube socket can enough guarantee base hardness, can also satisfy its heat dissipation requirement simultaneously.
In order to realize the technical purpose, the utility model discloses a technical scheme as follows:
a TO glass metal tube seat for a high-power laser comprises a carbon steel base, a glass insulator, a lead and an oxygen-free copper heat dissipation column;
the carbon steel base is provided with a first through hole matched with the shape of the glass insulator and a second through hole matched with the shape of the oxygen-free copper heat dissipation column;
the lead is connected with the carbon steel base through a glass insulator;
the oxygen-free copper heat dissipation column is fixedly connected with the second through hole of the carbon steel base in a welding mode.
Furthermore, the outer surface of the carbon steel base, the exposed part of the lead and the exposed part of the oxygen-free copper heat dissipation column are plated with nickel and gold.
Furthermore, the bottom surface of the oxygen-free copper heat dissipation column is flush with the bottom surface of the carbon steel base, and the upper end plane of the oxygen-free copper heat dissipation column is higher than that of the carbon steel base.
Further, the oxygen-free copper heat dissipation column is welded on the carbon steel base through silver-copper solder.
Furthermore, the lead is fixedly connected with the first through hole of the carbon steel base in a glass sealing mode.
Furthermore, the thickness of the nickel layer is 1.3-11 um, and the thickness of the gold layer is 0.1-0.6 um.
Furthermore, the carbon steel base is provided with two or more first through holes matched with the glass insulator in shape, and a lead is communicated in each first through hole.
Compared with the prior art, the utility model, following beneficial effect has:
1. through the TO glass metal tube seat for the high-power laser, carbon steel can be well hermetically sealed with glass, the TO tube seat airtight grade is ensured, and the carbon steel has certain hardness and is not easy TO be damaged in the electroplating process; the oxygen-free copper heat dissipation column is not directly welded on the upper surface of the base, but is provided with a hole on the carbon steel base, the oxygen-free copper heat dissipation column is directly arranged on the carbon steel base, the bottom surface of the oxygen-free copper heat dissipation column is parallel and level with the bottom surface of the base, the oxygen-free copper heat dissipation column can be directly connected with an external radiator, and the problem of insufficient heat dissipation can be solved.
2. The nickel plating mainly has the function of blocking the outer surface of the carbon steel base, the exposed part of the lead, the exposed part of the heat dissipation column and the gold plating layer, so that the gold layer and other materials of the metal tube seat are prevented from being diffused mutually, and the weldability and the service life of the whole metal tube seat are influenced; meanwhile, the mechanical strength of the gold layer is also enhanced by the priming of the nickel layer.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the TO glass-metal tube seat for a high power laser according TO the present invention;
FIG. 2 is a top view of the TO glass-TO-metal tube holder of the present invention for a high power laser;
fig. 3 is a sectional view a-a of fig. 2.
The notation in the figure is: the heat dissipation device comprises a carbon steel base 1, a glass insulator 2, a lead 3, an oxygen-free copper heat dissipation column 4 and a standard positioning groove 5.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
As shown in figure 1, the TO glass metal tube seat for the high-power laser comprises a carbon steel base 1, a glass insulator 2, a lead 3 and an oxygen-free copper heat dissipation column 4; the carbon steel base 1 is provided with a first through hole matched with the glass insulator 2 in shape and a second through hole matched with the oxygen-free copper heat dissipation column 4 in shape; the lead 3 is connected with the carbon steel base 1 through a glass insulator 2; and the oxygen-free copper heat dissipation column 4 is fixedly connected with the second through hole of the carbon steel base 1 in a welding mode. The carbon steel base 1 can be well hermetically sealed with the glass insulator 2, the airtight grade of the TO tube seat is guaranteed, and the carbon steel base 1 has certain hardness and is not easy TO be damaged in the electroplating process; the carbon steel base 1 is provided with a hole, and the oxygen-free copper heat dissipation column 4 is directly arranged in the carbon steel base 1, so that the problem of insufficient heat dissipation can be solved.
And the outer surface of the carbon steel base 1, the exposed part of the lead 3 and the exposed part of the oxygen-free copper heat dissipation column 4 are plated with nickel and gold.
The bottom surface of the oxygen-free copper heat dissipation column 4 is flush with the bottom surface of the carbon steel base 1, and the upper end plane of the oxygen-free copper heat dissipation column 4 is higher than that of the carbon steel base 1.
The oxygen-free copper heat dissipation column 4 is welded on the carbon steel base 1 through silver-copper solder.
And the lead 3 is fixedly connected with the first through hole of the carbon steel base 1 in a glass sealing mode.
The thickness of the nickel layer is 1.3-11 um, and the thickness of the gold layer is 0.1-0.6 um.
The carbon steel base 1 is provided with two or more first through holes matched with the glass insulator 2 in shape, and each first through hole is also communicated with a lead 3. The plurality of first through holes are arranged to facilitate the connection of the plurality of leads 3 with the carbon steel base 1.
A preparation method of a TO glass metal packaging tube seat for a high-power laser comprises the following steps:
1. welding the oxygen-free copper heat dissipation column 4, placing the carbon steel base 1 in a graphite fixture for fixing, assembling the oxygen-free copper heat dissipation column 4 on the base, sleeving a silver-copper solder ring between a gap between the heat dissipation column and the base, pressing the oxygen-free copper heat dissipation column 4 by the fixture, ensuring that the bottom surface of the heat dissipation column is flush with the bottom surface of the base, and welding in a reducing atmosphere furnace at the welding temperature of 800-900 ℃ and the chain belt speed of 40-60 mm/min.
2. And (2) glass sealing, namely placing the carbon steel base 1 welded with the oxygen-free copper heat dissipation column 4 in a graphite fixture, placing the glass insulator 2 in a base through hole, inserting the lead 3 into the glass insulator inner hole, controlling the position and the height of the lead 3 through the graphite fixture, and sealing in a reducing atmosphere furnace at the sealing temperature of 850-950 ℃ and the chain belt speed of 40-60 mm/min.
3. And (3) nickel plating and gold plating, wherein the surface of the whole product is subjected to nickel plating and gold plating treatment, the outer surface of the carbon steel base 1, the exposed part of the lead 3 and the exposed part of the heat dissipation column are plated with nickel and gold, the thickness of the nickel layer is 1.3-11 um, and the thickness of the gold layer is 0.1-0.6 um.
As shown in FIG. 2 or 3, a TO glass metal packaging tube seat for a high-power laser is characterized in that a standard positioning groove 5 is further formed in the side surface of a carbon steel base 1, so that the carbon steel base 1 can be conveniently and normally positioned in the clamping and mounting processes of a graphite clamp in the preparation process.
Compared with the prior art, the utility model, following beneficial effect has:
1. through the TO glass metal tube seat for the high-power laser, carbon steel can be well hermetically sealed with glass, the TO tube seat airtight grade is ensured, and the carbon steel has certain hardness and is not easy TO be damaged in the electroplating process; oxygen-free copper heat dissipation post 4 is not the beading at the base upper surface, but trompil on carbon steel base 1, with heat dissipation post direct mount carbon steel base 1, guarantees heat dissipation post bottom surface and base bottom surface parallel and level, but oxygen-free copper heat dissipation post 4 lug connection external radiator can solve the not enough problem of heat dissipation.
2. The nickel plating mainly has the function of blocking the outer surface of the carbon steel base 1, the exposed part of the lead 3, the exposed part of the heat dissipation column and the gold plating layer, so that the mutual diffusion of the gold layer and other materials of the metal tube seat is prevented, and the weldability and the service life of the whole metal tube seat are influenced; meanwhile, the mechanical strength of the gold layer is also enhanced by the priming of the nickel layer.
The TO glass-metal tube seat for the high-power laser provided by the application is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the structure of the application and its core ideas. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (7)
1. A TO glass metal tube seat for a high-power laser is characterized by comprising a carbon steel base (1), a glass insulator (2), a lead (3) and an oxygen-free copper heat dissipation column (4);
the carbon steel base (1) is provided with a first through hole matched with the glass insulator (2) in shape and a second through hole matched with the oxygen-free copper heat dissipation column (4) in shape;
the lead (3) is connected with the carbon steel base (1) through a glass insulator (2);
the oxygen-free copper heat dissipation column (4) is fixedly connected with the second through hole of the carbon steel base (1) in a welding mode.
2. The TO glass-TO-metal tube holder for high power laser as claimed in claim 1, wherein the outer surface of the carbon steel base (1), the exposed portion of the lead (3) and the exposed portion of the oxygen-free copper heat-dissipating stud are plated with nickel and gold.
3. The TO glass-metal tube socket for high power laser as claimed in claim 2, wherein the bottom surface of the oxygen-free copper heat-dissipating stud (4) is flush with the bottom surface of the carbon steel base (1), and the upper end plane of the oxygen-free copper heat-dissipating stud (4) is higher than the upper end plane of the carbon steel base (1).
4. A TO glass-metal header for high power lasers as claimed in claim 2 or 3 characterized by the oxygen free copper heat sink stud (4) soldered TO the carbon steel base (1) by silver bronze solder.
5. The TO glass-metal tube socket for high power laser as claimed in claim 4, wherein the lead wire (3) is fixed TO the first through hole of the carbon steel base (1) by glass sealing.
6. The TO glass-metal tube seat for the high-power laser as claimed in claim 5, wherein the thickness of the nickel layer is 1.3-11 um, and the thickness of the gold layer is 0.1-0.6 um.
7. The TO glass-metal tube seat for the high-power laser as claimed in claim 6, wherein the carbon steel base (1) is provided with two or more first through holes matching with the glass insulator (2) in shape, and each first through hole is communicated with a lead (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121373964.2U CN215184997U (en) | 2021-06-21 | 2021-06-21 | TO glass metal tube seat for high-power laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121373964.2U CN215184997U (en) | 2021-06-21 | 2021-06-21 | TO glass metal tube seat for high-power laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215184997U true CN215184997U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121373964.2U Active CN215184997U (en) | 2021-06-21 | 2021-06-21 | TO glass metal tube seat for high-power laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215184997U (en) |
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2021
- 2021-06-21 CN CN202121373964.2U patent/CN215184997U/en active Active
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