CN202658965U - Electromagnetic wave shielding case for induction type door lock - Google Patents
Electromagnetic wave shielding case for induction type door lock Download PDFInfo
- Publication number
- CN202658965U CN202658965U CN 201220154999 CN201220154999U CN202658965U CN 202658965 U CN202658965 U CN 202658965U CN 201220154999 CN201220154999 CN 201220154999 CN 201220154999 U CN201220154999 U CN 201220154999U CN 202658965 U CN202658965 U CN 202658965U
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- CN
- China
- Prior art keywords
- electromagnetic wave
- wave shielding
- door lock
- induction type
- type door
- 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
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- Lock And Its Accessories (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model provides an electromagnetic wave shielding case for an induction type door lock. The electromagnetic wave shielding case (10) is made from a conducting material and nearly surrounds a circuit board or an antenna (30) which sends signals, and one side, faces an electromagnetic wave guide direction (100), of the electromagnetic wave shielding case is opened, i.e. a reserved electromagnetic wave guide window. Because the shielding case has shielding and guiding functions, the electromagnetic wave strengths at the two sides (outer side/inner side) of the induction type door lock are obviously different from each other, and thus, an induction key can be judged to be outside a door or not.
Description
Technical field
The utility model relates to a kind of electromagnetic wave shielding shell, the electromagnetic wave shielding shell of using for a kind of induction type door lock specifically.
Background technology
As everyone knows, automobile key-free enters system (PKE) and has progressively begun to popularize at automotive field.If vehicle is equipped with this system, when you pressed button on the door handle, automobile PKE system just can wake the induction key of staying in pocket or the bag up, and after authentication was passed through, car door will automatic unlocking.
But generally there is LF (110KHz-150KHz) antenna more than three in automobile PKE system.And antenna is to be installed in specific position.As, on the door handle and compartment central authorities etc.The PKE system could determine the position (in car, car outside etc.) of induction key like this.
If directly automobile PKE system is used on the house door lock, that just need to install a plurality of LF antennas near door.Whole system is too complicated.Neither attractive in appearance, price is expensive again, can not accepted by ordinary people.
The utility model content
The technical problems to be solved in the utility model is: the electromagnetic wave shielding shell that a kind of induction type door lock is used, it can allow the electromagnetic wave of induction type door lock have directionality ground to propagate.Can allow the electromagnetic intensity of both sides (outboard/inboard) of induction type door lock that significant difference is arranged, thereby can realize with a cover LF antenna judgement of the position (in the door/outdoors) to the induction key.
In order to solve the problems of the technologies described above, the utility model is by the following technical solutions: the electromagnetic wave shielding shell that a kind of induction type door lock is used, described electromagnetic wave shielding shell is made with conductive material, it is characterized in that: described electromagnetic wave shielding housing has almost surrounded circuit board or the antenna that transmits, on described electromagnetic wave shielding housing, only reserving the electromagnetic wave pilot notched towards the one side of electromagnetic wave channeling direction.
Because shielding and the guide effect of shielding case, the electromagnetic intensity of induction type door lock both sides (outboard/inboard) has significant difference.And utilize this difference, induction type door lock can judge that the induction key is whether outdoors.
When the unlock button that is installed in outdoors is triggered, if the induction type door lock is judged the induction key outdoors, and passed through authentication, that will automatic unlocking.If the induction type door lock is judged the induction key in door, it just can not release.We just might realize responding to the judgement of key position with a cover LF antenna like this.Also avoided simultaneously when near induction key when door lock is in doors, unlock button also can trigger the phenomenon of release outdoors.
Description of drawings
Fig. 1 is the structural representation of the electromagnetic wave shielding shell used of induction type door lock described in the utility model;
Fig. 2 is the scheme of installation of the electromagnetic wave shielding shell used of induction type door lock described in the utility model.
The specific embodiment
Below, for a more detailed description to the utility model by reference to the accompanying drawings with embodiment.Present embodiment only is the description to the utility model preferred forms, scope of the present utility model is not had any restriction.
Embodiment
As shown in Figure 1, the electromagnetic wave shielding shell 10 that the induction type door lock is used is made with conductive material, has almost surrounded the circuit board or the antenna 30 that transmit.Only towards the one side of electromagnetic wave channeling direction 100, leave the electromagnetic wave pilot notched.
As shown in Figure 2, the electromagnetic wave shielding shell 10 that described induction type door lock is used is installed in metal lock panel 20 rear sides, is provided with the circuit board or the antenna 30 that transmit between described electromagnetic wave shielding shell 10 and the metal lock panel 20.
Match with the electromagnetic wave pilot notched of electromagnetic wave shielding shell 10, on described metal lock panel 20, also be provided with electromagnetic wave emission pilot notched 40.Described electromagnetic wave emission pilot notched 40 can be nonmetal window.
LF ((can only launch to outer side of door from nonmetal window for the signal of 110KHz～150KHz) and RF by the signal of 300MHz～500MHz).(the LF signal is used for waking up the induction key.The RF signal is used for communication and key authentication.)
In addition, also main directive is outdoors for the RF signal.Induction key in door is to carry out normal communication and authentication with master control borad circuit board 60.
In a word, the installation of the electromagnetic wave shielding shell 10 of using by described induction type door lock, we can only overlap the differentiation that the LF antenna realize responding to key position with one.Avoid a phenomenon of internal induction key erroneous trigger release.
Claims (1)
1. electromagnetic wave shielding shell that the induction type door lock is used, described electromagnetic wave shielding shell (10) is made with conductive material, it is characterized in that: described electromagnetic wave shielding housing (10) has almost surrounded circuit board or the antenna (30) that transmits, on described electromagnetic wave shielding housing (10), only reserving the electromagnetic wave pilot notched towards the one side of electromagnetic wave channeling direction (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220154999 CN202658965U (en) | 2012-04-13 | 2012-04-13 | Electromagnetic wave shielding case for induction type door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220154999 CN202658965U (en) | 2012-04-13 | 2012-04-13 | Electromagnetic wave shielding case for induction type door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202658965U true CN202658965U (en) | 2013-01-09 |
Family
ID=47453879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220154999 Expired - Fee Related CN202658965U (en) | 2012-04-13 | 2012-04-13 | Electromagnetic wave shielding case for induction type door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202658965U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108133525A (en) * | 2016-12-01 | 2018-06-08 | 浙江安尼智能门窗有限公司 | A kind of smart lock of wireless identity identification |
-
2012
- 2012-04-13 CN CN 201220154999 patent/CN202658965U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108133525A (en) * | 2016-12-01 | 2018-06-08 | 浙江安尼智能门窗有限公司 | A kind of smart lock of wireless identity identification |
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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 |
Granted publication date: 20130109 Termination date: 20160413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |