CN205082128U - Easy interference device shielding structure on PCB board - Google Patents
Easy interference device shielding structure on PCB board Download PDFInfo
- Publication number
- CN205082128U CN205082128U CN201520767018.4U CN201520767018U CN205082128U CN 205082128 U CN205082128 U CN 205082128U CN 201520767018 U CN201520767018 U CN 201520767018U CN 205082128 U CN205082128 U CN 205082128U
- Authority
- CN
- China
- Prior art keywords
- pcb board
- frequency division
- division duplex
- circuit
- bottom chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses an easy interference device shielding structure on PCB board, including bottom chamber shell (2) with install PCB board (1) in the shell of bottom chamber, the bottom of PCB board (1) is provided with easy interference device (3), is provided with hexagonal bolt (4) of electrical property ground connection on the four corners of PCB board (1) on still, bottom chamber shell (2) in be provided with and easily disturb device (3) matched with shielding cavity (5), bottom chamber shell (2) still are provided with a plurality of radiation tooths (6). The utility model provides an easy interference device shielding structure on PCB board sets up the easy interference device on the PCB board in PCB board bottom, sets up in the shell of bottom chamber and easily disturbs device matched with shielding cavity, and the shielding cavity can be with easily disturbing the device to keep apart to it easily disturbs the device not receive other circuit component's influence to make.
Description
Technical field
The utility model relates to the easy disturbance means shielding construction on a kind of pcb board.
Background technology
In electronic technology field instantly, the application of pcb board is more and more extensive, and concentrated on by circuit components on pcb board and connect, can effectively increase work efficiency, reduce circuit volume, save time cost.
But, pcb board still also exists some defects in application process, in various components and parts integrated on pcb board, run into the device that some are easily disturbed unavoidably, if do not dealt with, will circuit on pcb board in running, will be disturbed, affect circuit effect, also affect the quality of pcb board.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, easy disturbance means shielding construction on a kind of pcb board is provided, easy disturbance means on pcb board is arranged at bottom pcb board, the shielding cavity matched with easy disturbance means is set in bottom chamber shell, easy disturbance means can be isolated by shielding cavity, thus makes easy disturbance means not by the impact of other circuit components.
The purpose of this utility model is achieved through the following technical solutions: the easy disturbance means shielding construction on a kind of pcb board, comprises bottom chamber shell and is arranged on the pcb board in bottom chamber shell; The bottom of described pcb board is provided with easy disturbance means, on the corner of pcb board also on be provided with six square bolts of electrical property ground connection; The shielding cavity matched with easy disturbance means is provided with in described bottom chamber shell; Bottom chamber shell is also provided with multiple radiation tooth.
Described pcb board is also provided with mounting screw, and described bottom chamber shell is provided with the screw matched with mounting screw; Pcb board is fixedly mounted in bottom chamber shell by mounting screw and screw.
The left end of described bottom chamber shell is also provided with input port and output port; Described input port and output port are all electrically connected with pcb board.
The right-hand member of described bottom chamber shell is also provided with SIM card holder; Described SIM card holder is electrically connected with pcb board.
Circuit on described pcb board is transfer of data amplifying circuit, and described transfer of data amplifying circuit comprises: the first frequency division duplex device, low noise amplifier circuit LNA, the first gain adjustment circuit, the second frequency division duplex device, the second gain adjustment circuit, input matching circuit, power amplifier PA, output matching circuit and control circuit; Described input port is connected to the second frequency division duplex device by the first frequency division duplex device, low noise amplifier circuit and the first gain adjustment circuit successively; The output of the second frequency division duplex device is connected to output port by the second gain adjustment circuit, input matching circuit, power amplifier PA, output matching circuit and the first frequency division duplex device successively; Described control circuit is connected with power amplifier PA and low noise amplifier circuit LNA respectively.
Easy disturbance means on described pcb board is the first frequency division duplex device and the second frequency division duplex device; Be provided with two shielding cavities in described bottom chamber shell, match with the first frequency division duplex device and the second frequency division duplex device respectively.
The second frequency division duplex device in described transfer of data amplifying circuit and control circuit also respectively with the GSM-R model calling of pcb board outside; Described GSM-R module comprises Q2687G module.
The beneficial effects of the utility model are: the easy disturbance means on pcb board is arranged at bottom pcb board by (1), the shielding cavity matched with easy disturbance means is set in bottom chamber shell, pcb board is arranged in bottom chamber shell, easy disturbance means can be isolated by shielding cavity, thus makes easy disturbance means not by the impact of other circuit components.
(2) on the corner of pcb board also on be provided with six square bolts of electrical property ground connection, screw thread fixed interface can be provided for the device of pcb board outside, and its electrical property ground connection can be made, to shield the impact of external devices on pcb board when connecting external devices.
(3) bottom chamber shell is provided with radiation tooth, effectively can ensure the heat radiation of pcb board, avoids that pcb board is overheated causes unnecessary fault.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic block circuit diagram of the utility model pcb board;
In figure, 1-PCB plate, 2-bottom chamber shell, the easy disturbance means of 3-, 4-six square bolt, 5-shielding cavity, 6-radiation tooth, 7-mounting screw, 8-screw, 9-input port, 10-output port, 11-SIM deck.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection range of the present utility model is not limited to the following stated.
As shown in Figure 1, the easy disturbance means shielding construction on a kind of pcb board, the pcb board 1 comprising bottom chamber shell 2 and be arranged in bottom chamber shell; The bottom of described pcb board 1 is provided with easy disturbance means 3, on the corner of pcb board 1 also on be provided with six square bolts 4 of electrical property ground connection; The shielding cavity 5 matched with easy disturbance means 3 is provided with in described bottom chamber shell 2; Bottom chamber shell 2 is also provided with multiple radiation tooth 6.
Described pcb board 1 is also provided with multiple mounting screw 7, and described bottom chamber shell is provided with the screw 8 matched with mounting screw 7.
The left end of described bottom chamber shell 2 is also provided with input port 9 and output port 10; Described input port 9 and output port 10 are all electrically connected with pcb board 1.
The right-hand member of described bottom chamber shell 2 is also provided with SIM card holder 11; Described SIM card holder 11 is electrically connected with pcb board 1.
As shown in Figure 2, circuit on described pcb board 1 is transfer of data amplifying circuit, and described transfer of data amplifying circuit comprises: the first frequency division duplex device, low noise amplifier circuit LNA, the first gain adjustment circuit, the second frequency division duplex device, the second gain adjustment circuit, input matching circuit, power amplifier PA, output matching circuit and control circuit; Described input port 9 is connected to the second frequency division duplex device by the first frequency division duplex device, low noise amplifier circuit and the first gain adjustment circuit successively; The output of the second frequency division duplex device is connected to output port 10 by the second gain adjustment circuit, input matching circuit, power amplifier PA, output matching circuit and the first frequency division duplex device successively; Described control circuit is connected with power amplifier PA and low noise amplifier circuit LNA respectively.
Easy disturbance means 3 on described pcb board 1 is the first frequency division duplex device and the second frequency division duplex device; Be provided with two shielding cavities 5 in described bottom chamber shell 2, match with the first frequency division duplex device and the second frequency division duplex device respectively.
The second frequency division duplex device in described transfer of data amplifying circuit and control circuit also respectively with the GSM-R model calling of pcb board 1 outside; Described GSM-R module comprises Q2687G module.
Claims (7)
1. the easy disturbance means shielding construction on pcb board, is characterized in that: comprise bottom chamber shell (2) and be arranged on the pcb board (1) in bottom chamber shell; The bottom of described pcb board (1) is provided with easy disturbance means (3), on the corner of pcb board (1) also on be provided with six square bolts (4) of electrical property ground connection; The shielding cavity (5) matched with easy disturbance means (3) is provided with in described bottom chamber shell (2); Bottom chamber shell (2) is also provided with multiple radiation tooth (6).
2. the easy disturbance means shielding construction on a kind of pcb board according to claim 1, it is characterized in that: described pcb board (1) is also provided with multiple mounting screw (7), described bottom chamber shell is provided with the screw (8) matched with mounting screw (7).
3. the easy disturbance means shielding construction on a kind of pcb board according to claim 1, is characterized in that: the left end of described bottom chamber shell (2) is also provided with input port (9) and output port (10); Described input port (9) and output port (10) are all electrically connected with pcb board (1).
4. the easy disturbance means shielding construction on a kind of pcb board according to claim 1, is characterized in that: the right-hand member of described bottom chamber shell (2) is also provided with SIM card holder (11); Described SIM card holder (11) is electrically connected with pcb board (1).
5. the easy disturbance means shielding construction on a kind of pcb board according to claim 1, it is characterized in that: the circuit on described pcb board (1) is transfer of data amplifying circuit, and described transfer of data amplifying circuit comprises: the first frequency division duplex device, low noise amplifier circuit LNA, the first gain adjustment circuit, the second frequency division duplex device, the second gain adjustment circuit, input matching circuit, power amplifier PA, output matching circuit and control circuit; Described input port (9) is connected to the second frequency division duplex device by the first frequency division duplex device, low noise amplifier circuit and the first gain adjustment circuit successively; The output of the second frequency division duplex device is connected to output port (10) by the second gain adjustment circuit, input matching circuit, power amplifier PA, output matching circuit and the first frequency division duplex device successively; Described control circuit is connected with power amplifier PA and low noise amplifier circuit LNA respectively.
6. the easy disturbance means shielding construction on a kind of pcb board according to claim 5, is characterized in that: the easy disturbance means (3) on described pcb board (1) is the first frequency division duplex device and the second frequency division duplex device; Be provided with two shielding cavities (5) in described bottom chamber shell (2), match with the first frequency division duplex device and the second frequency division duplex device respectively.
7. the easy disturbance means shielding construction on a kind of pcb board according to claim 5, is characterized in that: the GSM-R model calling that the second frequency division duplex device in described transfer of data amplifying circuit and control circuit are also outside with pcb board (1) respectively; Described GSM-R module comprises Q2687G module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520767018.4U CN205082128U (en) | 2015-09-30 | 2015-09-30 | Easy interference device shielding structure on PCB board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520767018.4U CN205082128U (en) | 2015-09-30 | 2015-09-30 | Easy interference device shielding structure on PCB board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205082128U true CN205082128U (en) | 2016-03-09 |
Family
ID=55434496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520767018.4U Expired - Fee Related CN205082128U (en) | 2015-09-30 | 2015-09-30 | Easy interference device shielding structure on PCB board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205082128U (en) |
-
2015
- 2015-09-30 CN CN201520767018.4U patent/CN205082128U/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: 20160309 Termination date: 20180930 |