CN202406433U - Split sealing structure of passive device - Google Patents
Split sealing structure of passive device Download PDFInfo
- Publication number
- CN202406433U CN202406433U CN2011205662594U CN201120566259U CN202406433U CN 202406433 U CN202406433 U CN 202406433U CN 2011205662594 U CN2011205662594 U CN 2011205662594U CN 201120566259 U CN201120566259 U CN 201120566259U CN 202406433 U CN202406433 U CN 202406433U
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- cover plate
- lower chamber
- debugging
- passive device
- upper cover
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- Expired - Fee Related
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Abstract
The utility model discloses a split sealing structure of a passive device, which comprises a lower cavity, an upper cover board, a circle of step, a debugging cover board and a pressure block, wherein the upper cover board is arranged on the end face at the top of the lower cavity; the step is arranged on the inner wall of the lower cavity and is integrated with the lower cavity; the debugging cover board is arranged in the lower cavity and is clamped on the step; the pressure block is arranged in the lower cavity and is positioned on the end face at the top of the debugging cover board; and an effective inner cavity is formed between the debugging cover board and the lower cavity. According to the utility model, the split sealing structure has a simple structure; scrappage in the production process can be effectively reduced; the passive device is also ensured to have the optimal electrical index and third-order intermodulation index; the passive device can be well operated for a long time in various environments; and the split sealing structure disclosed by the patent of the utility model can be widely applied to the passage devices such as a coupler, a power divider, a bridge, a combiner and the like.
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 split type 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, so not high to the sealing requirements of device, but be applied under outdoor words or the environment condition of severe; Can receive the influence of external condition; So device has just required corresponding hermetically-sealed construction, enter into the inside cavity of passive device to prevent external substance, influence the electric index and the third order intermodulation 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, guarantee device under various environment, electricity function index that maintenance that can be long-term is best and third order intermodulation index.Good running for whole system.
Passive device is in order to guarantee the size of effective inner chamber generally speaking, device be divided into two parts, connector mounted lower chamber and upper cover plate.Connect through screw, both form effective inner chamber of certain size, and effectively emulation gets the size of inner chamber according to high frequency.In debug process, be loose fit between upper cover plate and the lower chamber, be convenient to the commissioning staff and under the defective situation of device index, take out upper cover plate easily and reprocess.Accomplish when the debugging index,,, be pressed into inside cavity, form airtight space fully with lower chamber through modes such as forcing presses with another one size and the close-fitting upper cover plate of lower chamber.But; Because the existing machinery machining accuracy can not reach the tolerance of microwave device; The deviation that all can have processing between upper cover plate and the lower chamber; Size between the tight fit upper cover plate of loose fit upper cover plate that uses in the debug process and the practicality of debugging back also is not quite similar, and causes upper cover plate to be pressed into the change in size of the effective inner chamber that forms behind the lower cover.In addition, when being pressed into lower chamber owing to upper cover plate, the application of force of forcing press is inhomogeneous, and the degree of depth that upper cover plate is pressed in the cavity also can change, and effectively the size of inner chamber also can and then change.Effectively the small change in size of inner chamber all can cause the electric index of device to change, and produces scrappage.Upper cover plate is when being pressed into lower chamber; Pressure is probably at 5 tons, around the upper cover plate lower surface, owing to receive huge pressure; Probably can produce the less metal fragment of volume, chip drops to the electric index and the third order intermodulation index that also can influence device in the air chamber.
The utility model content
The technical problem that the utility model will solve provides a kind of good sealing effect, and guarantees the hermetically-sealed construction of the passive device of passive device electric property.
The technical scheme of the utility model is:
A kind of split type hermetically-sealed construction of passive device; Comprise lower chamber and be arranged at the upper cover plate that lower chamber top and lower chamber are tightly connected; Described lower chamber inwall is provided with a circle and the integrated step of lower chamber; Being positioned in the lower chamber to engage on the step has the debugging cover plate, and the top end that is positioned at the debugging cover plate in the lower chamber is provided with briquetting, forms effective inner chamber between debugging cover plate and the lower chamber.
The thickness of described briquetting is less than or equal to the bottom end face of upper cover plate to the vertical range of debugging between the cover plate top end; The area of the horizontal end face of said briquetting is greater than the horizontal face area of placing the cavity of briquetting between upper cover plate and the debugging cover plate.
Described upper cover plate is provided with one group of male screw thread that is connected with lower chamber, and described debugging cover plate is provided with one group of inner bolt that is connected with step.
The advantage of the utility model:
(1), the size and the lower chamber size of debugging cover plate are the loose fit state; Both form the certain effective inner chamber of size; During installation; With the debugging cover plate of loose fit, through the screw installation already installed lower chamber is debugged repeatedly, thereby guaranteed that device has best electricity function index;
(2), briquetting has guaranteed the sealing of device; The thickness of briquetting has avoided the blocked up effective inner cavity size debugged that makes of size to change; Avoided briquetting to be pressed into the metal fragment that produces in the lower chamber internal procedure simultaneously and entered into effective inner chamber, influenced the electric index and the third order intermodulation index problem of device through forcing press.
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 and third order intermodulation index, has guaranteed the good operation of passive device.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the vertical view of the utility model.
Fig. 3 is the syndeton sketch map of the utility model debugging cover plate and inner bolt.
Embodiment
See Fig. 1; A kind of split type hermetically-sealed construction of passive device; Comprise lower chamber 1, be arranged at upper cover plate 2 on lower chamber 1 top end, be arranged at the integrated step of the circle of one on lower chamber 1 inwall and lower chamber 13, be arranged at and be positioned in the debugging cover plate 4 on the step 3 in the lower chamber 1 and be arranged at the briquetting 5 that is positioned in the lower chamber 1 on debugging cover plate 4 top end, the effective inner chamber 6 of formation between debugging cover plate 4 and the lower chamber 1; The thickness of briquetting 5 is less than or equal to the bottom end face of upper cover plate 2 to the vertical distance of debugging between cover plate 4 top end, and the area of briquetting 5 horizontal end faces is greater than the horizontal face area of placing the cavity of briquetting 5 between upper cover plate 2 and the debugging cover plate 4; Upper cover plate 2 is provided with the one group of male screw thread that is connected with lower chamber 7 (see figure 2), and debugging cover plate 4 is provided with one group of inner bolt 8 (see figure 3) that are connected with step 3.
Claims (3)
1. the split type hermetically-sealed construction of a passive device; Comprise lower chamber and be arranged at the upper cover plate that lower chamber top and lower chamber are tightly connected; It is characterized in that: described lower chamber inwall is provided with a circle and the integrated step of lower chamber; Being positioned in the lower chamber to engage on the step has the debugging cover plate, and the top end that is positioned at the debugging cover plate in the lower chamber is provided with briquetting, forms effective inner chamber between debugging cover plate and the lower chamber.
2. the split type hermetically-sealed construction of a kind of passive device according to claim 1, it is characterized in that: the thickness of described briquetting is less than or equal to the bottom end face of upper cover plate to the vertical range of debugging between the cover plate top end; The area of the horizontal end face of said briquetting is greater than the horizontal face area of placing the cavity of briquetting between upper cover plate and the debugging cover plate.
3. the split type hermetically-sealed construction of a kind of passive device according to claim 1, it is characterized in that: described upper cover plate is provided with one group of male screw thread that is connected with lower chamber, and described debugging cover plate is provided with one group of inner bolt that is connected with step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205662594U CN202406433U (en) | 2011-12-30 | 2011-12-30 | Split sealing structure of passive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205662594U CN202406433U (en) | 2011-12-30 | 2011-12-30 | Split sealing structure of passive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202406433U true CN202406433U (en) | 2012-08-29 |
Family
ID=46704039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205662594U Expired - Fee Related CN202406433U (en) | 2011-12-30 | 2011-12-30 | Split sealing structure of passive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202406433U (en) |
-
2011
- 2011-12-30 CN CN2011205662594U patent/CN202406433U/en not_active Expired - Fee Related
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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: 20120829 Termination date: 20181230 |