CN202523825U - Sealing structure for passive device - Google Patents
Sealing structure for passive device Download PDFInfo
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- CN202523825U CN202523825U CN2012201436851U CN201220143685U CN202523825U CN 202523825 U CN202523825 U CN 202523825U CN 2012201436851 U CN2012201436851 U CN 2012201436851U CN 201220143685 U CN201220143685 U CN 201220143685U CN 202523825 U CN202523825 U CN 202523825U
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- cover plate
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- passive device
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Abstract
Disclosed is a sealing structure for a passive device, comprising a cavity and a cover plate cooperating with the cavity, wherein the cover plate is of a step-like structure, with the length and width of the upper portion of the cover plate being greater than that of the lower portion of the cover plate; the lower portion of the cover plate is arranged inside the cavity, with the upper portion of the cover plate being arranged at the top of the cavity; and the lower portion of the cover plate is in interference fit with the cavity. The interference fit between the cover plate and the cavity ensures the sealing between the cover plate and the cavity, the stable electrical index of a passive device, and sound operation of a passive device, and reduces the influence upon the product index resulting from transportation and vibration. The sealing structure can be widely applied to a coupler, a power divider, an electrical bridge, a combiner, and other passive devices.
Description
Technical field
The utility model relates to employed passive device in the microwave technical field such as communication, radar, specifically is a kind of hermetically-sealed construction of passive device.
Background technology
Passive device is one of element the most frequently used in the microwave technical field.Under most of situation, passive device all be applied in indoor, but be applied in outdoorly, device has just required corresponding hermetically-sealed construction, enters into the inside cavity of passive device to prevent external substance, influences the electric index of device.Passive device belongs to high-precision equipment in addition; Be unit generally with 0.1 millimeter; Small change in size all can cause the electricity function index of device to change, so the structure of device must be rigorous, guarantees that device is under various environment; The electricity function index that maintenance that can be long-term is best is for the good running of whole system.
The hermetically-sealed construction of passive device is divided into two parts generally speaking, connector mounted cavity and the cover plate that is connected with cavity.In the hermetically-sealed construction of existing passive device, be matched in clearance between the bottom of cover plate and the cavity, this structure has promptly caused the poor sealing of device, thereby influences the electrical performance indexes of device.
The utility model content
The technical problem that the utility model will solve provides a kind of hermetically-sealed construction of passive device, solves the problem of the hermetically-sealed construction sealing difference of existing passive device.
The technical scheme of the utility model is:
A kind of hermetically-sealed construction of passive device; Comprise cavity and the cover plate that cooperates with cavity; Described cover plate is a hierarchic structure, and the length and width size on cover plate top is greater than the length and width size of cover plate bottom, and the cover plate bottom is arranged in the cavity; Its top is arranged at the top of cavity, and described cover plate bottom and cavity are interference fit.
Described cavity inner wall top is provided with a circle step groove; Described cover plate bottom comprises top limiting section and holding section, bottom; And the length and width size of limiting section is greater than the length and width size of holding section and less than the length and width size on cover plate top; Limiting section is positioned on the step groove, holding section and cavity inner wall interference fit.
The advantage of the utility model:
(1), the length and width of the utility model cover plate bottom is slightly larger than or equals the length and width size of cavity inner chamber; Can closely cooperate in the time of assembling so between the two; Through modes such as forcing presses; Be pressed into inside cavity to cover plate, form effective confined space, thereby guaranteed that device has stable electric property with cavity;
(2), the cavity inner wall top is provided with step trough; The limiting section of cover plate bottom is positioned on the step groove; Holding section and cavity inner wall interference fit, step trough the contact area that has increased cavity and cover plate is set, buffering cover plate bottom snaps in the pressure in the cavity; It is excessive to prevent that the cover plate bottom from snapping in cavity internal pressure, causes the problem of the size change of effective cavity.
The utility model is simple in structure, has guaranteed that passive device has the sealing that has very much, and has guaranteed that simultaneously passive device has best electric index, has guaranteed the good operation of passive device.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 1 cover plate.
Fig. 3 is the structural representation of the utility model embodiment 2.
Fig. 4 is the structural representation of the utility model embodiment 2 cover plate.
Embodiment
See Fig. 1, a kind of hermetically-sealed construction of passive device is an example with the hermetically-sealed construction of electric bridge, comprises cavity 1 and the cover plate that cooperates with cavity 1; See Fig. 2, cover plate is a hierarchic structure, and the length and width size on cover plate top 2 is greater than the length and width size of cover plate bottom, and cover plate top 2 is arranged at the top of cavity 1, and cover plate bottom 3 is arranged in the cavity 1 and with cavity 1 and is interference fit.
See Fig. 3, a kind of hermetically-sealed construction of passive device is an example with the hermetically-sealed construction of coupler, comprises cavity 1 and the cover plate that cooperates with cavity 1; See Fig. 4; Cover plate is a hierarchic structure, and the length and width size on cover plate top 2 is greater than the length and width size of cover plate bottom, and cover plate top 2 is arranged at the top of cavity 1; The cover plate bottom is arranged in the cavity 1 and with cavity 1 and is interference fit; The cover plate bottom comprises top limiting section 3 and holding section, bottom 4, and the length and width size of limiting section 3 is greater than the length and width size of holding section 4 and less than the length and width size less than cover plate top 2, and cavity 1 inwall top is provided with a circle step groove 5; Limiting section 3 is positioned on the step groove 5, holding section 4 and cavity 1 inwall interference fit.
Claims (2)
1. the hermetically-sealed construction of a passive device; Comprise cavity and the cover plate that cooperates with cavity; Described cover plate is a hierarchic structure, and the length and width size on cover plate top is greater than the length and width size of cover plate bottom, and the cover plate bottom is arranged in the cavity; Its top is arranged at the top of cavity, it is characterized in that: described cover plate bottom and cavity are interference fit.
2. the hermetically-sealed construction of a kind of passive device according to claim 1; It is characterized in that: described cavity inner wall top is provided with a circle step groove; Described cover plate bottom comprises top limiting section and holding section, bottom; And the length and width size of limiting section is greater than the length and width size of holding section and less than the length and width size on cover plate top, limiting section is positioned on the step groove, holding section and cavity inner wall interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201436851U CN202523825U (en) | 2012-04-09 | 2012-04-09 | Sealing structure for passive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201436851U CN202523825U (en) | 2012-04-09 | 2012-04-09 | Sealing structure for passive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202523825U true CN202523825U (en) | 2012-11-07 |
Family
ID=47106756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201436851U Expired - Fee Related CN202523825U (en) | 2012-04-09 | 2012-04-09 | Sealing structure for passive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202523825U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600410A (en) * | 2014-12-31 | 2015-05-06 | 镇江市明基电子有限公司 | Cavity power divider housing |
| CN104810585A (en) * | 2015-05-13 | 2015-07-29 | 武汉凡谷电子技术股份有限公司 | Cavity filter |
-
2012
- 2012-04-09 CN CN2012201436851U patent/CN202523825U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600410A (en) * | 2014-12-31 | 2015-05-06 | 镇江市明基电子有限公司 | Cavity power divider housing |
| CN104810585A (en) * | 2015-05-13 | 2015-07-29 | 武汉凡谷电子技术股份有限公司 | Cavity filter |
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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: 20121107 Termination date: 20180409 |