CN204298260U - The sealing structure of vacuum glass pumping hole - Google Patents
The sealing structure of vacuum glass pumping hole Download PDFInfo
- Publication number
- CN204298260U CN204298260U CN201420813435.3U CN201420813435U CN204298260U CN 204298260 U CN204298260 U CN 204298260U CN 201420813435 U CN201420813435 U CN 201420813435U CN 204298260 U CN204298260 U CN 204298260U
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- China
- Prior art keywords
- glass
- bleeding point
- thin slice
- sealing structure
- low melting
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Abstract
The utility model discloses a kind of sealing structure of vacuum glass pumping hole, it comprises: two glass sheets of parallel placement, upholder is provided with in the middle of two glass sheets, peripheral sealing, a described wherein glass sheets is provided with bleeding point, be provided with arc thin slice in bleeding point, described arc thin slice does not exceed described bleeding point, and the gap between described arc thin slice and described bleeding point is sealed by low melting glass.This sealing structure is simple, reliable, and easy handling realizes, and because the profile of thin slice is not higher than the glass surface of bleeding point, sealing structure is arranged on finds time in mouth, so outward appearance is more attractive in appearance.Meanwhile, because sheeting is very thin glass or kovar alloy, its coefficient of expansion and sheet glass closely, so seal or use time sealing effectiveness better.
Description
Technical field
The utility model relates to a kind of sealing structure of vacuum glass pumping hole.
Background technology
Vacuum glass is generally made up of two pieces or polylith sheet glass plate, and sheet glass surrounding seals, and centre is provided with small upholder, makes the air pressure in space between adjacent two pieces of sheet glass lower than normal atmosphere by bleeding.Because the convection action of gas reduces, therefore, vacuum glass has the effect of good heat insulation, sound insulation.
Usually, vacuum glass is after the edge of two sheet glass carries out soldering and sealing, and inside cavity gas is discharged by reserved air exhaust nozzle, makes its internal pressure be less than normal atmosphere and form vacuum.The making of air exhaust nozzle is generally reserved aspirating hole on a sheet glass wherein, and in aspirating hole placing glass extraction pipe, by low melting glass, extraction pipe is formed air exhaust nozzle together with glass solder.Subsequently extraction pipe is connected vacuum system to vacuumize, until glass formed inside cavity vacuum tightness reach setting require time, the scorification of bleeding point one end is sealed.There is following problem in the method for sealing of this bleeding point: can stay higher than glass surface " tail " after the scorification of air exhaust nozzle end; in order to avoid air exhaust nozzle accidental damage causes vacuum glass to be scrapped; usual needs increase tin hat in addition and are covered by air exhaust nozzle, not only complex procedures, affect outward appearance but also still there is hidden danger.Meanwhile, when air exhaust nozzle makes, between glass exhaust tube and sheet glass, welding need use low melting glass to heat monolithic glass, Heating temperature is higher than 450 DEG C, can cause the annealing of toughened glass, therefore, such making method can not produce toughened vacuum glass.
Utility model content
For solving the problem, the purpose of this utility model is the sealing structure providing a kind of vacuum glass pumping hole.
For achieving the above object, the utility model discloses a kind of sealing structure of vacuum glass pumping hole, this sealing structure comprises: two glass sheets of parallel placement, upholder is provided with in the middle of two glass sheets, peripheral sealing, a described wherein glass sheets is provided with bleeding point, is provided with arc thin slice in bleeding point, arc thin slice does not exceed bleeding point, and the gap between arc thin slice and bleeding point is sealed by low melting glass.
Further, counterbore is provided with in described bleeding point.
Further, described bleeding point is tapered hole.
Further, described thin slice is glass or the fusing point metal higher than low melting glass.
Further, described fusing point is kovar alloy higher than the metal of low melting glass.
Further, described low melting glass is particulate state.
Further, the blind end outside of described arc thin slice covers and is tightly connected with described bleeding point by described low melting glass completely.
Like this, first place arc thin slice at bleeding point, granular low melting glass is placed in gap simultaneously between arc thin slice and bleeding point, bled by the close gap between bleeding point and arc thin slice and low melting glass, reach the vacuum tightness of setting when bleeding after, carry out heat fused to low melting glass, the low melting glass of molten state penetrates in the gap between arc thin slice and bleeding point, realizes sealing bleeding point.This sealing structure is simple, reliable, and easy handling realizes, and outward appearance is more attractive in appearance.Meanwhile, the mode of local heating when the low melting glass between described arc thin slice and bleeding point heats, can be adopted, avoid the annealing heating of monoblock armourplate glass being caused to armourplate glass, therefore also may be used for producing toughened vacuum glass.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model in embodiment 1;
Fig. 2 is bleeding point close-up schematic view when bleeding point is tapered hole in embodiment 1;
Fig. 3 is bleeding point close-up schematic view in embodiment 2;
Fig. 4 is bleeding point close-up schematic view when thin slice is spill in embodiment 2.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
embodiment 1
As shown in Figure 1, a kind of sealing structure of vacuum glass pumping hole comprises: two glass sheets 1 of parallel placement, upholder 2 is provided with in the middle of two glass sheets 1, periphery is sealed by sealing-in limit 3, wherein a glass sheets is provided with bleeding point 4, bleeding point 4 is manhole, and its opening part is provided with counterbore, counterbore is provided with arc thin slice 5, the gap between thin slice 5 and bleeding point 4 is sealed by low melting glass 6.After sealing, thin slice 5 and low melting glass 6 profile do not exceed the outside surface of bleeding point 4 place glass.
Wherein, thin slice 5 is glass or the fusing point metal higher than low melting glass.Preferably, fusing point is kovar alloy higher than the metal of low melting glass.Low melting glass 6 is particulate state.
In addition as shown in Figure 2, bleeding point 4 can be set to tapered hole, and tapered hole arranges concave shaped sheet 5a.
Wherein the thickness of thin slice can be determined according to the pore size of bleeding point, is generally 0.3 ~ 1.5mm.
embodiment 2
The present embodiment structure is substantially the same manner as Example 1, and difference is:
As shown in Figure 3, bleeding point 4b is conical through-hole, and its opening part is provided with convex thin slice 5b.Gap between thin slice 5b and bleeding point 4b is sealed by low melting glass 6b.
In addition, as shown in Figure 4, thin slice can also turn over placement, forms a kind of thin slice 5c of spill.
Below only describe the preferred embodiment of the application by reference to the accompanying drawings, but the application is not limited thereto, every those of ordinary skill in the art are under the spirit not departing from the application, and any improvement made and/or distortion, all belong to the protection domain of the application.
Claims (7)
1. the sealing structure of a vacuum glass pumping hole, comprise: two glass sheets of parallel placement, upholder is provided with in the middle of two glass sheets, peripheral sealing, a described wherein glass sheets is provided with bleeding point, it is characterized in that, in bleeding point, be provided with arc thin slice, described arc thin slice does not exceed described bleeding point, and the gap between described arc thin slice and described bleeding point is sealed by low melting glass.
2. sealing structure as claimed in claim 1, is provided with counterbore in described bleeding point.
3. sealing structure as claimed in claim 1, described bleeding point is tapered hole.
4. sealing structure as claimed in claim 1, it is characterized in that, described arc thin slice is the metal of fusing point higher than low melting glass.
5. sealing structure as claimed in claim 4, it is characterized in that, described fusing point is kovar alloy higher than the metal of low melting glass.
6. sealing structure as claimed in claim 1, it is characterized in that, described low melting glass is particulate state.
7. sealing structure as claimed in claim 1, it is characterized in that, the blind end outside of described arc thin slice covers and is tightly connected with described bleeding point by described low melting glass completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420813435.3U CN204298260U (en) | 2014-12-22 | 2014-12-22 | The sealing structure of vacuum glass pumping hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420813435.3U CN204298260U (en) | 2014-12-22 | 2014-12-22 | The sealing structure of vacuum glass pumping hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204298260U true CN204298260U (en) | 2015-04-29 |
Family
ID=53103818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420813435.3U Expired - Fee Related CN204298260U (en) | 2014-12-22 | 2014-12-22 | The sealing structure of vacuum glass pumping hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204298260U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108060874A (en) * | 2018-01-16 | 2018-05-22 | 天津摩根坤德高新科技发展有限公司 | Composite aerogel glass and its preparation method and application |
| WO2018149836A1 (en) * | 2017-02-17 | 2018-08-23 | Vkr Holding A/S | Vacuum insulated glazing unit |
-
2014
- 2014-12-22 CN CN201420813435.3U patent/CN204298260U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018149836A1 (en) * | 2017-02-17 | 2018-08-23 | Vkr Holding A/S | Vacuum insulated glazing unit |
| US11060342B2 (en) | 2017-02-17 | 2021-07-13 | Vkr Holding A/S | Vacuum insulated glazing unit |
| CN108060874A (en) * | 2018-01-16 | 2018-05-22 | 天津摩根坤德高新科技发展有限公司 | Composite aerogel glass and its preparation method and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20211222 |