CN110446411A - Shield magnetic cover - Google Patents
Shield magnetic cover Download PDFInfo
- Publication number
- CN110446411A CN110446411A CN201910728667.6A CN201910728667A CN110446411A CN 110446411 A CN110446411 A CN 110446411A CN 201910728667 A CN201910728667 A CN 201910728667A CN 110446411 A CN110446411 A CN 110446411A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- connecting rod
- shielding magnetic
- connection
- magnetic cover
- 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.)
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
- H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
- H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The present invention provides a kind of shielding magnetic covers, belong to field of mechanical technique.It is poor that it solves the problems, such as the prior art there is stability.This shielding magnetic cover includes the cover that inside is cavity and lower openings, there is the connection edge of protrusion at the outer edge of the cover port, it further include washer, connecting rod and elastic positioning structure, above-mentioned connection has perforative connecting hole along upper, above-mentioned small end has the gear edge of protrusion, connection hole is threaded through in the middle part of connecting rod, above-mentioned gear edge is located at connection along top, above-mentioned elastic positioning structure is located at connecting rod lower end and elastic positioning structure is located at connection along lower part, after connecting rod lower end is connect by elastic positioning structure with the location hole on circuit board, above-mentioned gear edge can be resisted against connection along top.This shielding magnetic cover stability is high.
Description
Technical field
The invention belongs to field of mechanical technique, are related to a kind of shielding magnetic cover.
Background technique
For shielding magnetic cover for being connected to PCB circuit board, it is the cover for shielding electronic signal.Effect is exactly to shield
Influence of the external electromagnetic wave to internal circuit or the electromagnetic wave outside for preventing internal circuit from generating radiation.
Existing shielding magnetic cover generallys use fastener and connect with PCB circuit board, since PCB circuit board size is smaller,
Cause fastener sizes also smaller in this way, fastener connection difficulty is bigger, and PCB circuit board assembly yield is poor, and group
It is also relatively low to fill efficiency.
Summary of the invention
It is high the purpose of the present invention is in view of the above-mentioned problems existing in the prior art, providing a kind of easy to loading and unloading and stability
Shield magnetic cover.
Object of the invention can be realized by the following technical scheme:
A kind of shielding magnetic cover is the cover of cavity and lower openings including inside, which is characterized in that the cover port
There is the connection edge of protrusion at outer edge, further include washer, connecting rod and elastic positioning structure, above-mentioned connection is along upper with perforative
Connecting hole, above-mentioned small end have the gear edge of protrusion, and connection hole is threaded through in the middle part of connecting rod, and above-mentioned gear edge is located at connection along upper
Portion, above-mentioned elastic positioning structure is located at connecting rod lower end and elastic positioning structure is located at connection along lower part, when connecting rod lower end passes through bullet
Property location structure connect with the location hole on circuit board after, above-mentioned gear is along can be resisted against connection along top.
The creative setting connecting rod at connection edge of this shielding magnetic cover, connecting rod middle part are threaded through connection at, connecting rod lower end
It is threaded through in PCB circuit board after corresponding location hole, connecting rod lower end can be steady with PCB circuit board under the action of elastic positioning structure
Fixed connection.
Meanwhile the gear edge of small end is resisted against connection along upper.
Such structure is finally connected to cover is stable in PCB circuit board.Certainly, cover is fastened on corresponding electronics
On component, the electromagnetic wave outside that can effectively prevent internal circuit from generating is radiated.
In above-mentioned shielding magnetic cover, the gear edge is an integral structure with connecting rod.
In above-mentioned shielding magnetic cover, be also cased with washer flexible on the connecting rod, above-mentioned washer be pressed on gear along with
Connection is between.
In above-mentioned shielding magnetic cover, the washer is rubber material.
Be avoided that under the action of washer gear along with connect along rigid contact.
In above-mentioned shielding magnetic cover, the location structure includes card and spring, and above-mentioned connecting rod lower end, which has, runs through it
The mounting hole of two sides, above-mentioned card is located at mounting hole and the both ends of card are stretched out respectively at connecting rod two sides, and the two of above-mentioned spring
End is respectively acting on the inside of card and mounting hole, and card has the trend moved down under the elastic force effect of spring.
Card and spring are stably connected at mounting hole, since connecting rod two sides are stretched out at the both ends of card respectively.When card is got over
After crossing the location hole in PCB circuit board, card can be such that card end is resisted against at the location hole port of PCB circuit board after resetting,
Finally connecting rod lower end is stably connected with PCB circuit board.
Card is pushed active force during installation, can be buffered to above-mentioned external force by spring, avoid card and PCB circuit
Plate rigid contact.
In above-mentioned shielding magnetic cover, the card includes the linkage section and inclined clamping section in straight section shape, above-mentioned card
The quantity for connecing section is that two and two clamping sections are located at the both ends of linkage section, and above-mentioned spring is connected at linkage section.
In above-mentioned shielding magnetic cover, the linkage section and clamping section is an integral structure and two clamping sections and linkage section
On the basis of be symmetrical arranged.
Card is brass material, and this material can make card have appropriate elasticity.Once two clamping sections cross PCB circuit
After the location hole of plate, what the clamping section after reset can be stable is resisted against at PCB circuit board location hole port.
In above-mentioned shielding magnetic cover, the angle between the linkage section and clamping section is 100-120 degree.
Such structure can make to be clamped the stable inclination stretching connecting rod side of section.
In above-mentioned shielding magnetic cover, the linkage section top has cylindrical upper positioning column, above-mentioned spring one end
It covers on upper positioning column.
Positioning that can be stable to spring end by upper positioning column.
In above-mentioned shielding magnetic cover, the connection pars infrasegmentalis has cylindrical lower positioning column, the peace of above-mentioned connecting rod
Filling has recessed positioning recess at the side of hole, above-mentioned lower positioning column matches with positioning recess and lower positioning column is recessed embedded in positioning
At mouthful.
It can make card is stable to be located in mounting hole by lower positioning column and positioning recess cooperation.
Compared with prior art, this shielding magnetic cover is due to by can be by connecting rod lower end and PCB circuit in elastic positioning structure
The location hole of plate is stably connected with, meanwhile, it keeps off and is resisted against connection along top along stable, connecting rod is threaded through connection along upper, finally will
Cover is stable to be connected in PCB circuit board, is installed more convenient.Application external force can be by connecting rod after so that card is destroyed deformation
It is just taken out by PCB circuit board and connection along prescription, therefore, is dismantled more convenient.
Certainly, can not restore after being destroyed due to card, needing to re-replace new card after disassembly could be again by connecting rod
Lower end is stably connected with PCB circuit board.
In addition, due to connection along be pressed on gear along between PCB circuit board, connect between cover and PCB circuit board
Stabilization is connect, stability is relatively high, has very high practical value.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of this shielding magnetic cover.
In figure, 1, cover；1a, connection edge；1a1, connecting hole；2, washer；3, connecting rod；3a, gear edge；3b, mounting hole；3b1,
Positioning recess；4, card；4a, linkage section；4a1, upper positioning column；4a2, lower positioning column；4b, clamping section；5, spring.
Specific embodiment
As shown in Figure 1, this shielding magnetic cover includes internal be cavity and lower openings cover 1,1 port of cover it is outer
Edge has the connection of protrusion along 1a, further includes washer 2, connecting rod 3 and elastic positioning structure, above-mentioned connection has along 1a passes through
There is the gear of protrusion be threaded through at connecting hole 1a1 in the middle part of 3a, connecting rod 3 for the connecting hole 1a1 worn, above-mentioned 3 upper end of connecting rod, above-mentioned gear
It is located at connection along the top 1a along 3a, above-mentioned elastic positioning structure is located at 3 lower end of connecting rod and elastic positioning structure is located at connection along 1a
Lower part, after 3 lower end of connecting rod is connect by elastic positioning structure with the location hole on circuit board, above-mentioned gear can the company of being resisted against along 3a
It connects along the top 1a.
The gear is an integral structure along 3a and connecting rod 3.
Washer 2 flexible is also cased on the connecting rod 3, above-mentioned washer 2 is pressed on gear along 3a and connects between 1a.
The washer 2 is rubber material.
The location structure includes card 4 and spring 5, and above-mentioned 3 lower end of connecting rod has the mounting hole 3b through its two sides, on
State that card 4 is located at mounting hole 3b and the both ends of card 4 are stretched out respectively at 3 two sides of connecting rod, the both ends of above-mentioned spring 5 act on respectively
On the inside of card 4 and mounting hole 3b, card 4 has the trend moved down under the elastic force effect of spring 5.
The card 4 includes the linkage section 4a and inclined clamping section 4b in straight section shape, and the quantity of above-mentioned clamping section 4b is
Two and two clamping section 4b are located at the both ends of linkage section 4a, and above-mentioned spring 5 is connected at linkage section 4a.
The linkage section 4a and clamping section 4b be an integral structure and on the basis of two clamping section 4b and linkage section 4a symmetrically
Setting.
Angle between the linkage section 4a and clamping section 4b is 100-120 degree.
The top the linkage section 4a has cylindrical upper positioning column 4a1, and above-mentioned 5 one end cap of spring is in upper positioning column
On 4a1.
The lower part the linkage section 4b has cylindrical lower positioning column 4a2, has at the side mounting hole 3b of above-mentioned connecting rod 3
There is recessed positioning recess 3b1, above-mentioned lower positioning column 4a2 matches with positioning recess 3b1 and lower positioning column 4a2 is recessed embedded in positioning
At mouth 3b1.
The creative setting connecting rod at connection edge of this shielding magnetic cover, connecting rod middle part are threaded through connection at, connecting rod lower end
It is threaded through in PCB circuit board after corresponding location hole, connecting rod lower end can be steady with PCB circuit board under the action of elastic positioning structure
Fixed connection.
Meanwhile the gear edge of small end is resisted against connection along upper.
Such structure is finally connected to cover is stable in PCB circuit board.Certainly, cover is fastened on corresponding electronics
On component, the electromagnetic wave outside that can effectively prevent internal circuit from generating is radiated.
Claims (10)
1. a kind of shielding magnetic cover is the cover of cavity and lower openings including inside, which is characterized in that outside the cover port
Edge has the connection edge of protrusion, further includes washer, connecting rod and elastic positioning structure, and above-mentioned connection has perforative company along upper
Hole is connect, above-mentioned small end has the gear edge of protrusion, and connection hole is threaded through in the middle part of connecting rod, and above-mentioned gear edge is located at connection along upper
Portion, above-mentioned elastic positioning structure is located at connecting rod lower end and elastic positioning structure is located at connection along lower part, when connecting rod lower end passes through bullet
Property location structure connect with the location hole on circuit board after, above-mentioned gear is along can be resisted against connection along top.
2. shielding magnetic cover according to claim 1, which is characterized in that the gear edge is an integral structure with connecting rod.
3. shielding magnetic cover according to claim 2, which is characterized in that washer flexible is also cased on the connecting rod, it is above-mentioned
Washer be pressed on gear along with connect edge between.
4. shielding magnetic cover according to claim 3, which is characterized in that the washer is rubber material.
5. shielding magnetic cover according to claim 4, which is characterized in that the location structure includes card and spring, above-mentioned
Connecting rod lower end has the mounting hole through its two sides, and above-mentioned card is located at mounting hole and connecting rod two is stretched out at the both ends of card respectively
At side, the both ends of above-mentioned spring are respectively acting on the inside of card and mounting hole, and card, which has, under the elastic force effect of spring moves down
Trend.
6. shielding magnetic cover according to claim 5, which is characterized in that the card includes the linkage section in straight section shape and inclines
Oblique clamping section, the quantity of above-mentioned clamping section are that two and two clamping sections are located at the both ends of linkage section, above-mentioned spring
It is connected at linkage section.
7. shielding magnetic cover according to claim 6, which is characterized in that the linkage section and clamping section be an integral structure and
It is symmetrical arranged on the basis of two clamping sections and linkage section.
8. shielding magnetic cover according to claim 7, which is characterized in that the linkage section and the angle being clamped between section are
100-120 degree.
9. shielding magnetic cover according to claim 8, which is characterized in that the linkage section top has cylindrical upper fixed
Position column, above-mentioned spring one end cover on upper positioning column.
10. shielding magnetic cover according to claim 9, which is characterized in that the connection pars infrasegmentalis have it is cylindrical under
Positioning column, has recessed positioning recess at the mounting hole side of above-mentioned connecting rod, and above-mentioned lower positioning column matches with positioning recess
And lower positioning column is at positioning recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910728667.6A CN110446411B (en) | 2019-08-08 | 2019-08-08 | Shielding magnetic cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910728667.6A CN110446411B (en) | 2019-08-08 | 2019-08-08 | Shielding magnetic cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110446411A true CN110446411A (en) | 2019-11-12 |
| CN110446411B CN110446411B (en) | 2021-01-29 |
Family
ID=68433826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910728667.6A Active CN110446411B (en) | 2019-08-08 | 2019-08-08 | Shielding magnetic cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110446411B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116735543A (en) * | 2023-06-21 | 2023-09-12 | 千代田电子(嘉兴)有限公司 | Nondestructive testing device for fruits and vegetables |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5150282A (en) * | 1990-12-14 | 1992-09-22 | Fujitsu Limited | Electromagnetic shielding structure of high-frequency circuit arrangements |
| JPH05243756A (en) * | 1992-03-02 | 1993-09-21 | Nec Corp | Assembly for electronic parts |
| JPH0766580A (en) * | 1993-08-30 | 1995-03-10 | Kokusai Electric Co Ltd | Shield structure of wiring board |
| US6019614A (en) * | 1997-07-02 | 2000-02-01 | Temic Telefunken Microelectronic Gmbh | Element for providing electrical connection between a printed circuit board bonding pad and a metallic housing part |
| CN101452316A (en) * | 2007-12-04 | 2009-06-10 | 鸿富锦精密工业（深圳）有限公司 | Fastening device |
| CN102223783A (en) * | 2010-04-19 | 2011-10-19 | 鸿富锦精密工业（深圳）有限公司 | Shielding enclosure and electronic device with same |
| CN102821537A (en) * | 2012-07-26 | 2012-12-12 | 泰州市赛福电子有限公司 | Printed circuit board with shielding case |
| CN108377635A (en) * | 2018-01-11 | 2018-08-07 | 全南群英达电子有限公司 | A kind of magnetic head of cash inspecting machine shielding case |
-
2019
- 2019-08-08 CN CN201910728667.6A patent/CN110446411B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5150282A (en) * | 1990-12-14 | 1992-09-22 | Fujitsu Limited | Electromagnetic shielding structure of high-frequency circuit arrangements |
| JPH05243756A (en) * | 1992-03-02 | 1993-09-21 | Nec Corp | Assembly for electronic parts |
| JPH0766580A (en) * | 1993-08-30 | 1995-03-10 | Kokusai Electric Co Ltd | Shield structure of wiring board |
| US6019614A (en) * | 1997-07-02 | 2000-02-01 | Temic Telefunken Microelectronic Gmbh | Element for providing electrical connection between a printed circuit board bonding pad and a metallic housing part |
| CN101452316A (en) * | 2007-12-04 | 2009-06-10 | 鸿富锦精密工业（深圳）有限公司 | Fastening device |
| CN102223783A (en) * | 2010-04-19 | 2011-10-19 | 鸿富锦精密工业（深圳）有限公司 | Shielding enclosure and electronic device with same |
| CN102821537A (en) * | 2012-07-26 | 2012-12-12 | 泰州市赛福电子有限公司 | Printed circuit board with shielding case |
| CN108377635A (en) * | 2018-01-11 | 2018-08-07 | 全南群英达电子有限公司 | A kind of magnetic head of cash inspecting machine shielding case |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116735543A (en) * | 2023-06-21 | 2023-09-12 | 千代田电子(嘉兴)有限公司 | Nondestructive testing device for fruits and vegetables |
| CN116735543B (en) * | 2023-06-21 | 2024-03-22 | 千代田电子(嘉兴)有限公司 | Nondestructive testing device for fruits and vegetables |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110446411B (en) | 2021-01-29 |
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