CN202444057U - Low-frequency awakening antenna used for door handle of keyless entry and keyless start system - Google Patents
Low-frequency awakening antenna used for door handle of keyless entry and keyless start system Download PDFInfo
- Publication number
- CN202444057U CN202444057U CN2012200675802U CN201220067580U CN202444057U CN 202444057 U CN202444057 U CN 202444057U CN 2012200675802 U CN2012200675802 U CN 2012200675802U CN 201220067580 U CN201220067580 U CN 201220067580U CN 202444057 U CN202444057 U CN 202444057U
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- antenna
- door handle
- coil
- low frequency
- key
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Abstract
The utility model relates to a low-frequency awakening antenna used for a door handle of a keyless entry and keyless start system. The antenna comprises a strip-shaped magnetic bar which is uniformly wound with a coil; a capacitor arranged in a shell cavity of the antenna is a metalized thin-film capacitor, and the coil is connected with the capacitor in series. A resistor used for reducing the Q value of the antenna is connected in series between the coil and the capacitor; and the coil, the magnetic bar, the capacitor and the resistor are encapsulated in the shell by resin or organic silicon. The low-frequency awakening antenna disclosed by the utility model can meet the requirement of a client on resonant frequency precision when the use condition is -40 to 125 DEG C, and also can meet the requirement of the client on the broad resonant frequency range (low Q value). The inductance and capacitance parameters are controlled to ensure the consistency of awakening signals of the antenna. The adoption of resin encapsulation and double U-shaped groove wire outlet through holes ensures the mechanical properties and high and low temperature characteristics of a product.
Description
Technical field
The utility model relates to the technical field of the novel inductor that need in the modern electronic technology field to be applied to the transmission of low frequency wake-up signal; Specifically be that a kind of door handle that does not have key entering, no key start-up system is used the low frequency wake-up antenna, be widely used in not having the door handle low frequencies base station end of key entering, no key start-up system.
Background technology
Low frequency wake-up antenna in the market; There is not specialized designs to be used to be installed in the antenna in the anti-pull-type door handle inner chamber narrow space of automobile; Some is only to have installed in the door handle around the bar magnet of coil, and electric capacity is arranged on the pcb board in the car in addition, causes the resonance precision to reduce.
Low frequency wake-up antenna in the past, operate as normal at normal temperatures often, and at-40 °--125 ° scope internal antenna tends to occur the serious drift of resonance frequency and causes system's cisco unity malfunction.
On the market existing antenna product often Q value have antenna producer when LC is tuning, to obtain, user such as need adjustment Q value, can only the later stage in circuit again work such as series resistor realize, waste time and energy the increase cost.
Antenna in the market, main pay close attention to have only resonant frequency point and impedance ranges; But be difficult to control to the consistency of product field intensity, cause the wake-up signal intensity of bulk article to differ and make system's misoperation easily.
The utility model content
The utility model technical problem to be solved provide a kind of simple in structure, cost is lower, be suitable for anti-pull-type door handle the low frequency wake-up antenna, can satisfy that the no key that all kinds of anti-pull-type automobile door handles install and use gets into, the door handle of no key start-up system is used the low frequency wake-up antenna.
For solving the problems of the technologies described above, the utility model provides a kind of door handle that does not have key entering, no key start-up system to use the low frequency wake-up antenna, and comprising: the bar magnet of a strip evenly is wound with coil on the bar magnet; It is characterized by: the interior electric capacity of cavity pocket of outer cover of being located at this antenna is metallized film capacitor, said coil and this capacitances in series.
The scheme of further optimizing is: be in series with between said coil, the electric capacity one be used to reduce this antenna Q value resistance; Coil, bar magnet, electric capacity and resistance are potted in the said shell with resin or organosilicon; One end of coil is connected the back with heat-shrinkable T bush plastic packaging junction with first wire harness, the other end of coil is connected to second wire harness through said electric capacity, and this second wire harness wire casing of drawing on shell is again drawn shell; The said wire casing of drawing is a pair of U type groove arranged side by side.
The scheme of further optimizing is: said first, second wire harness begins stranded each other from said U type groove, lay is 0.5-1.5cm.
The scheme of further optimizing is: said electric capacity is the cube shaped metallized polypropylene film electric capacity of rule, is positioned in the special cavity of reserving of shell inner cavity.
The scheme of further optimizing is: this antenna is installed in the inner chamber of door handle.
The scheme of further optimizing is: four angles of the shell of this antenna are provided with boss and the card base that is used for the inner chamber Matching Location of door handle.
The scheme of further optimizing is: described bar magnet is rectangular build bar magnet.
The utlity model has positive effect: the low frequency wake-up antenna of the utility model, can satisfy the requirement of client to service condition accuracy of resonant frequencies-40 ℃ to 125 ℃ the time, also can satisfy the client to wide resonant frequency range (low reactance-resistance ratio) requirement.Through to inductance, the control of capacitance parameter guarantees the consistency of antenna wake-up signal size.And the employing that goes out line three-way hole of resin embedding and double-U-shaped groove guarantees the mechanical property of product, property at high and low temperature.
Description of drawings
Fig. 1 is the perspective view of the low frequency wake-up inductance among the embodiment;
Fig. 2 is the internal structure sketch map of the low frequency wake-up inductance of the utility model;
Fig. 3 is another cut-away view of the low frequency wake-up inductance of the utility model.
Reference numeral: 1--bar magnet, 2--coil, 3--shell, 4--electric capacity, 5--first wire harness, 6--second wire harness, 9--boss, 10--card base, 11--U type groove, 12--resistance.
Embodiment
See Fig. 1 to 3, the no key of present embodiment gets into, the door handle of no key start-up system is installed in the inner chamber of door handle with the low frequency wake-up antenna.This antenna comprises: the bar magnet of a rectangular build evenly is wound with coil on the bar magnet; The interior electric capacity of cavity pocket of outer cover of being located at this antenna is metallized film capacitor, said coil and this capacitances in series.
Said bar magnet is the Mn-Zn Ferrite Material, and magnetic permeability is between 2300-5000, and said plastic casing material is the PA66+ glass fiber, and the coupling Embedding Material is a resin.
Said resistance parameter is generally 1-20ohm, thereby realizes that Q value scope is from adjusting between the 40-60 more than 100.
The line that said coil adopts directly is generally 0.16mm, 0.20mm, 0.25mm, 0.3mm.
Said bar magnet length is generally 25-100mm, and width is generally 5-20mm, and thickness is generally 2.5-4mm.
Be in series with between said coil, the electric capacity one be used to reduce this antenna Q value resistance; Coil, bar magnet, electric capacity and resistance are potted in the said shell with resin or organosilicon; One end of coil is connected the back with heat-shrinkable T bush plastic packaging junction with first wire harness, the other end of coil is connected to second wire harness through said electric capacity, and this second wire harness wire casing of drawing on shell is again drawn shell; The said wire casing of drawing is a pair of U type groove arranged side by side.
Said first, second wire harness begins stranded each other from said U type groove, lay is 0.5-1.5cm.
Said electric capacity is the cube shaped metallized polypropylene film electric capacity of rule, is positioned in the special cavity of reserving of shell inner cavity.
Four angles of the shell of this antenna are provided with boss and the card base that is used for the inner chamber Matching Location of door handle.
Obviously, the foregoing description only be for explain clearly that the utility model does for example, and be not to be qualification to the execution mode of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all execution modes.And conspicuous variation that these spirit that belong to the utility model are extended out or change still are among the protection range of the utility model.
Claims (7)
1. a door handle that does not have key entering, no key start-up system is used the low frequency wake-up antenna, comprises the bar magnet of a strip, evenly is wound with coil on the bar magnet; It is characterized in that: the interior electric capacity of cavity pocket of outer cover of being located at this antenna is metallized film capacitor, said coil and this capacitances in series.
2. no key according to claim 1 gets into, the door handle of no key start-up system is used the low frequency wake-up antenna, it is characterized in that: be in series with between said coil, the electric capacity one be used to reduce this antenna Q value resistance; Coil, bar magnet, electric capacity and resistance are potted in the said shell with resin or organosilicon; One end of coil is connected the back with heat-shrinkable T bush plastic packaging junction with first wire harness, the other end of coil is connected to second wire harness through said electric capacity, and this second wire harness wire casing of drawing on shell is again drawn shell; The said wire casing of drawing is a pair of U type groove arranged side by side.
3. no key according to claim 2 gets into, the door handle of no key start-up system is used the low frequency wake-up antenna, and it is characterized in that: said first, second wire harness is stranded each other, and lay is 0.5-1.5cm.
4. no key according to claim 1 gets into, the door handle of no key start-up system is used the low frequency wake-up antenna, it is characterized in that: said electric capacity is the cube shaped metallized polypropylene film electric capacity of rule.
5. no key according to claim 2 gets into, the door handle of no key start-up system is used the low frequency wake-up antenna, and it is characterized in that: this antenna is installed in the inner chamber of door handle.
6. no key according to claim 1 gets into, the door handle of no key start-up system is used the low frequency wake-up antenna, it is characterized in that: four angles of the shell of this antenna are provided with boss and the card base that is used for the inner chamber Matching Location of door handle.
7. no key according to claim 1 gets into, the door handle of no key start-up system is used the low frequency wake-up antenna, and it is characterized in that: described bar magnet is rectangular build bar magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200675802U CN202444057U (en) | 2012-02-28 | 2012-02-28 | Low-frequency awakening antenna used for door handle of keyless entry and keyless start system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200675802U CN202444057U (en) | 2012-02-28 | 2012-02-28 | Low-frequency awakening antenna used for door handle of keyless entry and keyless start system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202444057U true CN202444057U (en) | 2012-09-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200675802U Expired - Lifetime CN202444057U (en) | 2012-02-28 | 2012-02-28 | Low-frequency awakening antenna used for door handle of keyless entry and keyless start system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202444057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3211713A1 (en) * | 2016-02-29 | 2017-08-30 | Aisin Seiki Kabushiki Kaisha | Antenna module |
-
2012
- 2012-02-28 CN CN2012200675802U patent/CN202444057U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3211713A1 (en) * | 2016-02-29 | 2017-08-30 | Aisin Seiki Kabushiki Kaisha | Antenna module |
| US10629985B2 (en) | 2016-02-29 | 2020-04-21 | Aisin Seiki Kabushiki Kaisha | Antenna module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUXI NIUKE ELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CHANGZHOU NEWIC ELECTRONIC CO., LTD. Effective date: 20130930 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 213000 CHANGZHOU, JIANGSU PROVINCE TO: 214000 WUXI, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130930 Address after: E1-403 Network Innovation Park China sensor No. 200 214000 Jiangsu province Wuxi District Taihu International Science Park Avenue Linghu Patentee after: Wuxi Niuke Electronic Technology Co., Ltd. Address before: Yan Zhen Xuemalu Wujin District Jiangsu city of Changzhou province snow 213000 No. 6 Patentee before: Changzhou Newic Electronic Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120919 |